From ff61bd1384be1d35395b47c9a4712299076dc8a8 Mon Sep 17 00:00:00 2001
From: Nasa Nguyen <nasa8x@gmail.com>
Date: Sat, 14 Mar 2020 17:15:13 +0700
Subject: [PATCH] Remove jQuery & Support Material Design Icons

---
 README.md                      |   56 +-
 dist/index.css                 |    2 +-
 dist/index.css.map             |    2 +-
 dist/index.js                  |  449 ++--
 dist/index.js.map              |    2 +-
 dist/index.min.js              |    2 +-
 dist/v-markdown-editor.css     |    2 +-
 dist/v-markdown-editor.css.map |    2 +-
 dist/v-markdown-editor.js      | 3852 ++++++++++++++--------------
 dist/v-markdown-editor.js.map  |    2 +-
 dist/v-markdown-editor.min.js  |    2 +-
 dist/www.min.js                |   50 +-
 dist/www/css/app.css           |    4 +-
 dist/www/css/app.css.map       |    2 +-
 dist/www/index.html            |    2 +-
 dist/www/js/app.js             | 4282 +++++++++++++++-----------------
 dist/www/js/app.js.map         |    2 +-
 package-lock.json              | 2259 ++++++++---------
 package.json                   |   48 +-
 src/editor.vue                 |  302 +--
 src/index.css                  |  124 +-
 src/index.js                   |   14 +-
 webpack.development.js         |   34 +-
 www/app.vue                    |   52 +-
 24 files changed, 5418 insertions(+), 6130 deletions(-)

diff --git a/README.md b/README.md
index b62e379..765f649 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
 # Vue Markdown Editor component for Vue.js
 
-☞ [Vue JS - The Complete Guide (incl. Vue Router & Vuex)](https://learnstartup.net/go/BJBa7-l-g)
+☞ [What's new in Bootstrap 5)](https://morioh.com/p/46e9af3b9b04)
 
-☞ [How to Create a Chrome Extension with Vue.js](https://morioh.com/p/0169fb660bae)
+☞ [Vue.JS Tutorial: Learn Vue.js from Scratch](https://morioh.com/list/5dd27fc107964607af718993)
 
-☞ [How To Build a Blog with Nest.js, MongoDB, and Vue.js](https://morioh.com/p/74ffc8a798bb)
+☞ [Javascript Tutorial for Absolute Beginners](https://morioh.com/list/5dcd0341203e265d661aa028)
 
-![Markdown Editor Preview](https://i.imgur.com/Bcr3Xhk.png)
+![Markdown Editor Preview](https://i.imgur.com/jdhT2Yf.png)
 
 
 ### Demo
@@ -20,7 +20,7 @@ npm install v-markdown-editor
 ```
 
 ```js
-import 'v-markdown-editor/dist/index.css';
+import 'v-markdown-editor/dist/v-markdown-editor.css';
 
 import Vue from 'vue'
 import Editor from 'v-markdown-editor'
@@ -33,6 +33,13 @@ Vue.use(Editor);
 
 ### Use CDN
 
+```
+<link href="https://cdn.jsdelivr.net/npm/v-markdown-editor/dist/v-markdown-editor.css" rel="stylesheet">
+
+<script src="https://cdn.jsdelivr.net/npm/v-markdown-editor/dist/v-markdown-editor.min.js" type="text/javascript"></script>
+
+```
+
 ```
 
 <link href="https://unpkg.com/v-markdown-editor/dist/v-markdown-editor.css" rel="stylesheet">
@@ -42,14 +49,19 @@ Vue.use(Editor);
 
 ```
 
-## Require
+## Change
 
-Bootstrap 4 & Fontawesome
+```
+1.2.0
+- Support Fontawsome &  Material Design Icons 
+- Remove jQuery
+
+```
 
 
 ## Example
 
-```js
+```html
 
 <template>
     <div class="container">
@@ -87,7 +99,7 @@ Bootstrap 4 & Fontawesome
 ## v-model
 
 
-```js
+```html
 
 <template>
     <div class="container">
@@ -115,7 +127,7 @@ Bootstrap 4 & Fontawesome
 ### Toolbar
 
 
-```js
+```html
 
 // full toolbar: clipboard redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen
 
@@ -130,7 +142,7 @@ Bootstrap 4 & Fontawesome
 ### add custom button
 
 
-```js
+```html
 
 <template>
     <div class="container">
@@ -147,7 +159,7 @@ Bootstrap 4 & Fontawesome
                 custom: {
                     'upload': {
                         cmd: 'upload',
-                        className: 'fas fa-upload',
+                        ico: 'fas fa-upload',
                         title: 'Upload File'
                     }
                 }
@@ -173,7 +185,7 @@ Bootstrap 4 & Fontawesome
 ### Handle editor
 
 
-```js
+```html
 
 <template>
     <div class="container">
@@ -206,25 +218,19 @@ Bootstrap 4 & Fontawesome
 
 ```
 
-### Custom submit form input name
-
-
-```js
+### Auto resize
 
-<template>
-    <div class="container">
-       <markdown-editor name="html"></markdown-editor>
-    </div>
-</template>
+```html
 
+ <markdown-editor height="auto"></markdown-editor>
 ```
 
 
-### Auto resize
+### Button Theme
 
-```js
+```html
 
- <markdown-editor height="auto"></markdown-editor>
+ <markdown-editor theme="primary"></markdown-editor>
 ```
 
 
diff --git a/dist/index.css b/dist/index.css
index 38d45c6..7957e0e 100644
--- a/dist/index.css
+++ b/dist/index.css
@@ -1,2 +1,2 @@
-.v-md-container{background:#f5f5f5;border:solid 1px #ddd}.v-md-container>.v-md-toolbar{padding:8px 5px;border-bottom:solid 1px #ddd}.v-md-wrapper{position:relative}.v-md-preview{position:absolute;top:0;left:0;bottom:0;right:0;z-index:999;background:#fff;padding:5px;overflow:auto;color:#333;height:auto !important}.v-md-container .clipboard-text{height:250px}.v-md-fullscreen{width:100%;height:100% !important;top:0;left:0;right:0;bottom:0;position:fixed;overflow:hidden;z-index:99999}.v-md-container .CodeMirror{font-family:Arial, Helvetica, sans-serif}.v-md-auto-resize .CodeMirror{height:auto !important}.v-md-auto-resize .CodeMirror-scroll{overflow:auto;height:auto;overflow:visible;position:relative;outline:none;min-height:300px}.v-md-fullscreen .v-md-preview{position:fixed !important;top:52px}.CodeMirror-fullscreen{position:fixed !important;top:52px;left:0;right:0;bottom:0;height:auto !important;z-index:9}.v-md-container .modal{z-index:1080 !important}.v-md-container .modal .btn{min-width:90px}.float-left{float:left !important}
+.v-md-container{border:solid 1px #ddd;background:#fff}.v-md-container>.v-md-toolbar{padding:8px 5px;border-bottom:solid 1px #ddd;background:#f5f5f5}.v-md-wrapper{position:relative}.v-md-preview{position:absolute;top:0;left:0;bottom:0;right:0;z-index:999;background:#fff;padding:5px;overflow:auto;color:#333;height:auto !important}.v-md-fullscreen{width:100%;height:100% !important;top:0;left:0;right:0;bottom:0;position:fixed;overflow:hidden;z-index:99999}.v-md-fullscreen .v-md-preview{position:fixed !important;top:52px}.v-md-auto-resize .CodeMirror{height:auto !important}.v-md-auto-resize .CodeMirror-scroll{overflow:auto;height:auto;overflow:visible;position:relative;outline:none;min-height:250px}
 
diff --git a/dist/index.css.map b/dist/index.css.map
index 7eb139d..8769d2a 100644
--- a/dist/index.css.map
+++ b/dist/index.css.map
@@ -1 +1 @@
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\ No newline at end of file
+{"version":3,"sources":["webpack:///./src/index.css"],"names":[],"mappings":"AAAA;AACA;AACA,mBAAmB;;AAEnB;AACA;AACA;AACA;AACA,kBAAkB;;AAElB;AACA;AACA,kBAAkB;;AAElB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,0BAA0B;;AAE1B;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,iBAAiB;;AAEjB;AACA;AACA,YAAY;;AAEZ;AACA,0BAA0B;;AAE1B;AACA;AACA;AACA;AACA;AACA;AACA,oBAAoB;;AAEpB;AACA;;AAEA;AACA;AACA,CAAC;AACD;AACA;AACA;AACA;AACA;AACA;AACA,oB;;AAEA;;;AAGA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,CAAC","file":"index.css","sourcesContent":[".v-md-container {\n  border: solid 1px #ddd;\n  background: #fff; }\n\n.v-md-container > .v-md-toolbar {\n  padding: 8px 5px;\n  border-bottom: solid 1px #ddd;\n  background: #f5f5f5;\n  /* height: 52px; */ }\n\n.v-md-wrapper {\n  position: relative;\n  /* padding: 5px; */ }\n\n.v-md-preview {\n  position: absolute;\n  top: 0;\n  left: 0;\n  bottom: 0;\n  right: 0;\n  z-index: 999;\n  background: #fff;\n  padding: 5px;\n  overflow: auto;\n  color: #333;\n  height: auto !important; }\n\n.v-md-fullscreen {\n  width: 100%;\n  height: 100% !important;\n  top: 0;\n  left: 0;\n  right: 0;\n  bottom: 0;\n  position: fixed;\n  overflow: hidden;\n  z-index: 99999; }\n\n.v-md-fullscreen .v-md-preview {\n  position: fixed !important;\n  top: 52px; }\n\n.v-md-auto-resize .CodeMirror {\n  height: auto !important; }\n\n.v-md-auto-resize .CodeMirror-scroll {\n  overflow: auto;\n  height: auto;\n  overflow: visible;\n  position: relative;\n  outline: none;\n  min-height: 250px; }\n\n/* \n.v-md-container .cm-scroller{\n    \n    height: 280px;\n    font-family: unset;\n} */\n/* .v-md-auto-resize .cm-scroller {\n    overflow: auto;\n    height: auto;\n    overflow: visible;\n    position: relative;\n    outline: none;\n    min-width: auto;   \n    \n}\n\n\n.v-md-wrapper .cm-wrap.cm-focused{\n    outline: 0;\n}\n.v-md-wrapper .cm-content{\n    white-space: unset;\n    font-family: unset;\n}\n\n.cm-keyword {\n    color: #708;\n}\n\n.cm-atom {\n    color: #219;\n}\n\n.cm-number {\n    color: #164;\n}\n\n.cm-def {\n    color: #00f;\n}\n\n.cm-variable, .cm-punctuation, .cm-property, .cm-operator {}\n\n.cm-variable-2 {\n    color: #05a;\n}\n\n.cm-variable-3, .cm-type {\n    color: #085;\n}\n\n.cm-comment {\n    color: #a50;\n}\n\n.cm-string {\n    color: #a11;\n}\n\n.cm-string-2 {\n    color: #f50;\n}\n\n.cm-meta {\n    color: #555;\n}\n\n.cm-qualifier {\n    color: #555;\n}\n\n.cm-builtin {\n    color: #30a;\n}\n\n.cm-bracket {\n    color: #997;\n}\n\n.cm-tag {\n    color: #170;\n}\n\n.cm-attribute {\n    color: #00c;\n}\n\n.cm-hr {\n    color: #999;\n}\n\n.cm-link {\n    color: #00c;\n} */\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/dist/index.js b/dist/index.js
index 13be9f3..8b9187f 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -105,27 +105,18 @@ return /******/ (function(modules) { // webpackBootstrap
 
 "use strict";
 __webpack_require__.r(__webpack_exports__);
-/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! codemirror/lib/codemirror.css */ "codemirror/lib/codemirror.css");
-/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__);
-/* harmony import */ var _index_css__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./index.css */ "./src/index.css");
-/* harmony import */ var _index_css__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_index_css__WEBPACK_IMPORTED_MODULE_1__);
-/* harmony import */ var markdownparser__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! markdownparser */ "markdownparser");
-/* harmony import */ var markdownparser__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(markdownparser__WEBPACK_IMPORTED_MODULE_2__);
-/* harmony import */ var marked__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! marked */ "marked");
-/* harmony import */ var marked__WEBPACK_IMPORTED_MODULE_3___default = /*#__PURE__*/__webpack_require__.n(marked__WEBPACK_IMPORTED_MODULE_3__);
-/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! codemirror */ "codemirror");
-/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_4___default = /*#__PURE__*/__webpack_require__.n(codemirror__WEBPACK_IMPORTED_MODULE_4__);
-/* harmony import */ var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! codemirror/addon/display/fullscreen.js */ "codemirror/addon/display/fullscreen.js");
-/* harmony import */ var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5__);
-/* harmony import */ var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! codemirror/mode/markdown/markdown.js */ "codemirror/mode/markdown/markdown.js");
-/* harmony import */ var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6___default = /*#__PURE__*/__webpack_require__.n(codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6__);
-/* harmony import */ var codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! codemirror/mode/gfm/gfm.js */ "codemirror/mode/gfm/gfm.js");
-/* harmony import */ var codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7___default = /*#__PURE__*/__webpack_require__.n(codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7__);
-/* harmony import */ var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! codemirror/addon/display/placeholder.js */ "codemirror/addon/display/placeholder.js");
-/* harmony import */ var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8__);
-/* harmony import */ var codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! codemirror/addon/selection/active-line.js */ "codemirror/addon/selection/active-line.js");
-/* harmony import */ var codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9__);
-//
+/* harmony import */ var markdownparser__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! markdownparser */ "markdownparser");
+/* harmony import */ var markdownparser__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(markdownparser__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var marked__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! marked */ "marked");
+/* harmony import */ var marked__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(marked__WEBPACK_IMPORTED_MODULE_1__);
+/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! codemirror */ "codemirror");
+/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(codemirror__WEBPACK_IMPORTED_MODULE_2__);
+/* harmony import */ var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! codemirror/addon/display/fullscreen.js */ "codemirror/addon/display/fullscreen.js");
+/* harmony import */ var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3__);
+/* harmony import */ var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! codemirror/mode/markdown/markdown.js */ "codemirror/mode/markdown/markdown.js");
+/* harmony import */ var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4___default = /*#__PURE__*/__webpack_require__.n(codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4__);
+/* harmony import */ var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! codemirror/addon/display/placeholder.js */ "codemirror/addon/display/placeholder.js");
+/* harmony import */ var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5__);
 //
 //
 //
@@ -144,11 +135,6 @@ __webpack_require__.r(__webpack_exports__);
 //
 //
 //
-//
-
-
-
-
 
 
 
@@ -157,6 +143,12 @@ __webpack_require__.r(__webpack_exports__);
 
 /* harmony default export */ __webpack_exports__["default"] = ({
   props: {
+    id: {
+      type: String,
+      "default": function _default() {
+        return 'v-md-editor-' + Math.random().toString(16).substr(2, 9);
+      }
+    },
     css: {
       type: String
     },
@@ -179,151 +171,123 @@ __webpack_require__.r(__webpack_exports__);
       type: Object,
       "default": function _default() {
         return {
+          "clean": {
+            cmd: "clean",
+            ico: "fas fa-remove-format mdi mdi-format-clear",
+            title: "Html to markdown",
+            hotkey: 'Shift-Alt-F'
+          },
+          "undo": {
+            cmd: "undo",
+            ico: "fas fa-undo mdi mdi-undo-variant",
+            title: "Undo",
+            hotkey: 'Ctrl-Z'
+          },
+          "redo": {
+            cmd: "redo",
+            ico: "fas fa-redo mdi mdi-redo-variant",
+            title: "Redo",
+            hotkey: 'Ctrl-Y'
+          },
+          "bullist": {
+            cmd: "bullist",
+            ico: "fas fa-list-ul mdi mdi-format-list-bulleted",
+            title: "Generic List"
+          },
+          "numlist": {
+            cmd: "numlist",
+            ico: "fas fa-list-ol mdi mdi-format-list-numbered",
+            title: "Numbered List"
+          },
           'bold': {
             title: 'Bold',
-            className: 'far fa-bold',
+            ico: 'fas fa-bold mdi mdi-format-bold',
             cmd: 'bold',
             hotkey: 'Ctrl-B'
           },
           'italic': {
             title: 'Italic',
-            className: "far fa-italic",
+            ico: "fas fa-italic mdi mdi-format-italic",
             cmd: 'italic',
             hotkey: 'Ctrl-I'
           },
           "strikethrough": {
             cmd: "strikethrough",
-            className: "far fa-strikethrough",
+            ico: "fas fa-strikethrough mdi mdi-format-strikethrough",
             title: "Strikethrough"
           },
           'heading': {
             title: 'Heading',
-            className: "far fa-heading",
+            ico: "fas fa-heading mdi mdi-format-header-3",
             cmd: 'heading',
             hotkey: 'Ctrl-H'
           },
           'code': {
             title: 'Code',
-            className: "far fa-code",
+            ico: "fas fa-code mdi mdi-code-tags",
             cmd: 'code',
             hotkey: 'Ctrl-X'
           },
           'quote': {
             title: 'Quote',
-            className: "far fa-quote-left",
+            ico: "fas fa-quote-left mdi mdi-format-quote-open",
             cmd: 'quote',
             hotkey: 'Ctrl-Q'
           },
           'link': {
             title: 'Link',
-            className: "far fa-link",
+            ico: "fas fa-link mdi mdi-link",
             cmd: 'link',
             hotkey: 'Ctrl-K'
           },
           'image': {
             title: 'Image',
-            className: "far fa-image",
+            ico: "fas fa-image mdi mdi-image",
             cmd: 'image',
             hotkey: 'Ctrl-P'
           },
           "fullscreen": {
             cmd: "fullscreen",
-            className: "far fa-arrows-alt no-disable no-mobile",
+            ico: "fas fa-expand mdi mdi-fullscreen",
             title: "Toggle Fullscreen",
             hotkey: 'F11',
             ready: true
           },
           "preview": {
             cmd: "preview",
-            className: "far fa-eye no-disable",
+            ico: "fas fa-eye mdi mdi-eye",
             title: "Toggle Preview",
             hotkey: 'Ctrl-P',
             ready: true
-          },
-          "clipboard": {
-            cmd: "clipboard",
-            className: "far fa-clipboard",
-            title: "Copy & Markdown Format",
-            hotkey: 'Ctrl-V'
-          },
-          "clean": {
-            cmd: "clean",
-            className: "far fa-remove-format",
-            title: "Html to markdown"
-          },
-          "undo": {
-            cmd: "undo",
-            className: "far fa-undo",
-            title: "Undo",
-            hotkey: 'Ctrl-Z'
-          },
-          "redo": {
-            cmd: "redo",
-            className: "far fa-repeat",
-            title: "Redo",
-            hotkey: 'Ctrl-Y'
-          },
-          "bullist": {
-            cmd: "bullist",
-            className: "far fa-list-ul",
-            title: "Generic List"
-          },
-          "numlist": {
-            cmd: "numlist",
-            className: "far fa-list-ol",
-            title: "Numbered List"
           }
         };
       }
     },
-    name: {
+    theme: {
       type: String,
-      "default": 'html'
+      "default": 'outline-secondary'
     },
     value: {
       type: String,
       "default": '',
       required: false
     },
-    buttonClass: {
-      type: String,
-      "default": 'btn btn-outline-secondary'
-    },
     options: {
       type: Object,
       "default": function _default() {
-        return {
-          mode: 'gfm',
-          theme: "elegent",
-          lineNumbers: false,
-          styleActiveLine: false,
-          styleSelectedText: true,
-          lineWrapping: true,
-          indentWithTabs: true,
-          autoRefresh: true,
-          tabSize: 2,
-          indentUnit: 2
-        };
+        return {};
       }
     }
   },
   data: function data() {
     return {
-      id: 'v-md-editor-' + new Date().getTime(),
       editor: null,
       preview: false,
+      fullScreen: false,
       html: '',
-      toolbars: [],
-      shortcuts: {}
+      toolbars: []
     };
   },
-  watch: {
-    value: function value(val) {
-      if (val != this.editor.getValue()) {
-        this.editor.setValue(val);
-      }
-    }
-  },
   computed: {
     styles: function styles() {
       return {
@@ -332,6 +296,13 @@ __webpack_require__.r(__webpack_exports__);
       };
     }
   },
+  watch: {
+    value: function value(val) {
+      if (val != this.editor.getValue()) {
+        this.editor.setValue(val);
+      }
+    }
+  },
   methods: {
     isEmpty: function isEmpty(s) {
       return s === null || s === undefined ? true : /^[\s\xa0]*$/.test(s);
@@ -348,12 +319,6 @@ __webpack_require__.r(__webpack_exports__);
 
       return a; // Make chainable
     },
-    uid: function uid(name) {
-      return this.format('%s-%s', this.id, name);
-    },
-    obj: function obj(name) {
-      return jQuery('#' + this.uid(name));
-    },
     _toggleBlock: function _toggleBlock(type, start, end) {
       end = this.isEmpty(end) ? start : end;
       var ed = this.editor;
@@ -415,9 +380,8 @@ __webpack_require__.r(__webpack_exports__);
         ed.replaceSelection(start + text + end);
         startPoint.ch += start.length;
         endPoint.ch = startPoint.ch + text.length;
-      }
+      } // ed.setSelection(startPoint, endPoint);
 
-      ed.setSelection(startPoint, endPoint);
     },
     _toggleLine: function _toggleLine(name) {
       var ed = this.editor;
@@ -523,18 +487,14 @@ __webpack_require__.r(__webpack_exports__);
           ch: 0
         });
       } else {
-        // text = ed.getSelection();
-        // ed.replaceSelection(start + text + end);
         ed.replaceSelection(start + end);
         startPoint.ch += start.length;
 
         if (startPoint !== endPoint) {
           endPoint.ch += start.length;
         }
-      }
+      } //ed.setSelection(startPoint, endPoint);
 
-      ed.setSelection(startPoint, endPoint);
-      ed.focus();
     },
     drawImage: function drawImage(obj) {
       var stat = this.state();
@@ -549,7 +509,6 @@ __webpack_require__.r(__webpack_exports__);
     command: function command(key) {
       var ed = this.editor;
       var text = ed.getSelection();
-      var stat = this.state();
       this.$root.$emit('markdown-editor:' + key, this);
 
       switch (key) {
@@ -585,12 +544,7 @@ __webpack_require__.r(__webpack_exports__);
           ed.replaceSelection('\n### ' + text);
           break;
 
-        case 'clipboard':
-          this.obj('modal-clipboard').modal('show');
-          break;
-
         case 'image':
-          // this.obj('modal-image').modal('show');
           var url = prompt("Please enter image url", "https://");
 
           if (this.isUrl(url)) {
@@ -604,7 +558,6 @@ __webpack_require__.r(__webpack_exports__);
           break;
 
         case 'link':
-          //this.obj('modal-link').modal('show');
           var url = prompt("Please enter link", "https://");
 
           if (this.isUrl(url)) {
@@ -622,11 +575,6 @@ __webpack_require__.r(__webpack_exports__);
 
           break;
 
-        case 'quote':
-          this._toggleLine('quote');
-
-          break;
-
         case 'numlist':
           this._toggleLine('numlist');
 
@@ -638,99 +586,59 @@ __webpack_require__.r(__webpack_exports__);
           break;
 
         case 'preview':
-          ///var md = new MarkdownIt({ typographer: true, breaks: true, quotes: '“”‘’' });
-          this.html = marked__WEBPACK_IMPORTED_MODULE_3___default()(ed.getValue(), {
+          this.html = marked__WEBPACK_IMPORTED_MODULE_1___default()(ed.getValue(), {
             breaks: true
           });
-          this.preview ^= true;
-          this.obj('toolbar').find('.btn:not(".ready")').prop('disabled', this.preview);
+          this.preview = !this.preview;
           break;
 
         case 'fullscreen':
-          this.obj('container').toggleClass('v-md-fullscreen');
-          this.obj('fullscreen').toggleClass('active');
+          this.fullScreen = !this.fullScreen;
           ed.setOption("fullScreen", !ed.getOption("fullScreen"));
           break;
 
         case 'clean':
-          text = markdownparser__WEBPACK_IMPORTED_MODULE_2___default.a.parse(text);
-          ed.replaceSelection(text);
+          ed.replaceSelection(markdownparser__WEBPACK_IMPORTED_MODULE_0___default.a.parse(text));
           break;
       }
-
-      ed.focus();
     },
     build: function build() {
-      if (!jQuery) {
-        console.error("Must required jQuery!");
-        return;
-      }
-
-      if (this.isEmpty(this.toolbar)) {
-        console.error("You must set toolbar!");
-        return;
-      }
+      var _this = this;
 
       if (this.__rendered) return;
+      var buttons = Object.assign({}, this.buttons, this.extend);
+      var shortcuts = {};
+      this.toolbar.split('|').forEach(function (t, i) {
+        var group = [];
+        t.toLowerCase().split(/(\s)/).forEach(function (b) {
+          if (!_this.isEmpty(b)) {
+            var btn = buttons[b];
+
+            if (!_this.isEmpty(btn.hotkey)) {
+              shortcuts[btn.hotkey] = function () {
+                return _this.command(btn.cmd);
+              };
+            }
 
-      var _t = this;
-
-      this.buttons = Object.assign(this.buttons, this.extend);
-
-      var btns = _t.toolbar.toLowerCase().split(/(\s)/).filter(function (w) {
-        return !_t.isEmpty(w);
-      });
-
-      var group = [];
-
-      for (var i = 0; i < btns.length; i++) {
-        var btn = btns[i];
-        var obj = _t.buttons[btn];
-
-        if (obj) {
-          // obj.cmd = typeof obj.cmd ==='function'? obj.cmd: this.command(obj.cmd);
-          obj.id = btn;
-          group.push(obj);
-        }
-
-        if (btn === '|' || i == btns.length - 1) {
-          this.toolbars.push(group);
-          group = [];
-        }
-      }
-
-      var o = Object.assign({}, {
-        extraKeys: _t.shortcuts,
-        initialValue: _t.value
-      }, _t.options);
-      var el = document.getElementById(_t.id + '-input');
-      _t.editor = codemirror__WEBPACK_IMPORTED_MODULE_4___default.a.fromTextArea(el, o);
-
-      _t.editor.on("change", function (ed) {
-        //_t.editor.save();                    
-        _t.$emit('input', ed.getValue()); //_t.value = ed.getValue();
-
-      });
-
-      _t.editor.on("cursorActivity", function () {
-        var stat = _t.state();
-
-        _t.obj('toolbar').find('.btn.active:not(.ready)').removeClass('active');
-
-        Object.keys(stat).forEach(function (key) {
-          _t.obj(key).addClass('active');
+            group.push(btn);
+          }
         });
+        if (group.length > 0) _this.toolbars.push(group);
       });
-
-      _t.__rendered = true;
+      var o = Object.assign({
+        mode: 'markdown',
+        extraKeys: shortcuts
+      }, this.options);
+      var ed = this.editor = codemirror__WEBPACK_IMPORTED_MODULE_2___default.a.fromTextArea(document.getElementById(this.id), o);
+      ed.setValue(this.value);
+      ed.on("change", function (ed) {
+        _this.$emit('input', ed.getValue());
+      });
+      this.__rendered = true;
     }
   },
   mounted: function mounted() {
-    var _this = this;
-
-    this.$nextTick(function () {
-      _this.build();
-    });
+    this.build();
   },
   destroyed: function destroyed() {
     this.editor = null;
@@ -760,75 +668,72 @@ var render = function() {
       class: [
         "v-md-container",
         _vm.css,
-        { "v-md-auto-resize": _vm.height == "auto" }
-      ],
-      attrs: { id: _vm.uid("container") }
+        {
+          "v-md-auto-resize": _vm.height == "auto",
+          "v-md-fullscreen": _vm.fullScreen
+        }
+      ]
     },
     [
-      _c(
-        "div",
-        { staticClass: "v-md-toolbar", attrs: { id: _vm.uid("toolbar") } },
-        _vm._l(_vm.toolbars, function(group) {
-          return _c(
+      _vm.toolbars.length > 0
+        ? _c(
             "div",
-            { staticClass: "btn-group mr-3", attrs: { role: "group" } },
-            _vm._l(group, function(i) {
+            { staticClass: "v-md-toolbar" },
+            _vm._l(_vm.toolbars, function(group) {
               return _c(
-                "button",
-                {
-                  class: [_vm.buttonClass, { ready: i.ready }],
-                  attrs: { type: "button", id: _vm.uid(i.id), title: i.title },
-                  on: {
-                    click: function($event) {
-                      return _vm.command(i.cmd)
-                    }
-                  }
-                },
-                [
-                  _c("i", {
-                    class: i.className,
-                    attrs: { "aria-hidden": "true" }
-                  })
-                ]
+                "div",
+                { staticClass: "btn-group mr-3", attrs: { role: "group" } },
+                _vm._l(group, function(i) {
+                  return _c(
+                    "button",
+                    {
+                      class: "btn btn-" + _vm.theme,
+                      attrs: {
+                        type: "button",
+                        title: i.title,
+                        disabled: _vm.preview && !i.ready
+                      },
+                      on: {
+                        click: function($event) {
+                          return _vm.command(i.cmd)
+                        }
+                      }
+                    },
+                    [_c("i", { class: i.ico })]
+                  )
+                }),
+                0
               )
             }),
             0
           )
-        }),
-        0
-      ),
+        : _vm._e(),
       _vm._v(" "),
-      _c("div", { staticClass: "v-md-wrapper" }, [
-        _c("textarea", {
-          directives: [
-            {
-              name: "model",
-              rawName: "v-model",
-              value: _vm.value,
-              expression: "value"
-            }
-          ],
-          style: _vm.styles,
-          attrs: { id: _vm.uid("input"), name: _vm.name },
-          domProps: { value: _vm.value },
+      _c(
+        "div",
+        {
+          staticClass: "v-md-wrapper",
           on: {
-            input: function($event) {
-              if ($event.target.composing) {
-                return
-              }
-              _vm.value = $event.target.value
+            click: function($event) {
+              return _vm.editor.focus()
             }
           }
-        }),
-        _vm._v(" "),
-        _vm.preview
-          ? _c("div", {
-              staticClass: "v-md-preview",
-              attrs: { id: _vm.uid("html-preview") },
-              domProps: { innerHTML: _vm._s(_vm.html) }
-            })
-          : _vm._e()
-      ])
+        },
+        [
+          _c("textarea", {
+            staticClass: "v-md-editor",
+            style: _vm.styles,
+            attrs: { id: _vm.id }
+          }),
+          _vm._v(" "),
+          _vm.preview
+            ? _c("div", {
+                staticClass: "v-md-preview",
+                domProps: { innerHTML: _vm._s(_vm.html) }
+              })
+            : _vm._e()
+        ]
+      )
     ]
   )
 }
@@ -922,7 +827,7 @@ function normalizeComponent (
       // for template-only hot-reload because in that case the render fn doesn't
       // go through the normalizer
       options._injectStyles = hook
-      // register for functioal component in vue file
+      // register for functional component in vue file
       var originalRender = options.render
       options.render = function renderWithStyleInjection (h, context) {
         hook.call(context)
@@ -1035,7 +940,13 @@ __webpack_require__.r(__webpack_exports__);
 
 "use strict";
 __webpack_require__.r(__webpack_exports__);
-/* harmony import */ var _editor_vue__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./editor.vue */ "./src/editor.vue");
+/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! codemirror/lib/codemirror.css */ "codemirror/lib/codemirror.css");
+/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _index_css__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./index.css */ "./src/index.css");
+/* harmony import */ var _index_css__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_index_css__WEBPACK_IMPORTED_MODULE_1__);
+/* harmony import */ var _editor_vue__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./editor.vue */ "./src/editor.vue");
+
+
 
 var MarkdownEditor = {
   install: function install(Vue) {
@@ -1044,7 +955,7 @@ var MarkdownEditor = {
     }
 
     Vue.__md_editor_installed = true;
-    Vue.component('markdown-editor', _editor_vue__WEBPACK_IMPORTED_MODULE_0__["default"]);
+    Vue.component('markdown-editor', _editor_vue__WEBPACK_IMPORTED_MODULE_2__["default"]);
   }
 };
 
@@ -1052,13 +963,7 @@ if (typeof window !== 'undefined' && window.Vue) {
   Vue.use(MarkdownEditor);
 }
 
-/* harmony default export */ __webpack_exports__["default"] = (MarkdownEditor); // if (typeof exports == "object") {
-//     module.exports = MarkdownEditor;
-// } else if (typeof define == "function" && define.amd) {
-//     define([], function () { return MarkdownEditor; })
-// } else if (window.Vue) {
-//     Vue.use(MarkdownEditor);
-// }
+/* harmony default export */ __webpack_exports__["default"] = (MarkdownEditor);
 
 /***/ }),
 
@@ -1095,17 +1000,6 @@ module.exports = require("codemirror/addon/display/placeholder.js");
 
 /***/ }),
 
-/***/ "codemirror/addon/selection/active-line.js":
-/*!************************************************************!*\
-  !*** external "codemirror/addon/selection/active-line.js" ***!
-  \************************************************************/
-/*! no static exports found */
-/***/ (function(module, exports) {
-
-module.exports = require("codemirror/addon/selection/active-line.js");
-
-/***/ }),
-
 /***/ "codemirror/lib/codemirror.css":
 /*!************************************************!*\
   !*** external "codemirror/lib/codemirror.css" ***!
@@ -1117,17 +1011,6 @@ module.exports = require("codemirror/lib/codemirror.css");
 
 /***/ }),
 
-/***/ "codemirror/mode/gfm/gfm.js":
-/*!*********************************************!*\
-  !*** external "codemirror/mode/gfm/gfm.js" ***!
-  \*********************************************/
-/*! no static exports found */
-/***/ (function(module, exports) {
-
-module.exports = require("codemirror/mode/gfm/gfm.js");
-
-/***/ }),
-
 /***/ "codemirror/mode/markdown/markdown.js":
 /*!*******************************************************!*\
   !*** external "codemirror/mode/markdown/markdown.js" ***!
diff --git a/dist/index.js.map b/dist/index.js.map
index 1ef6f6a..47e293e 100644
--- a/dist/index.js.map
+++ b/dist/index.js.map
@@ -1 +1 @@
-{"version":3,"sources":["webpack:///webpack/universalModuleDefinition","webpack:///webpack/bootstrap","webpack:///src/editor.vue","webpack:///./src/editor.vue?45e8","webpack:///./node_modules/vue-loader/lib/runtime/componentNormalizer.js","webpack:///./src/editor.vue","webpack:///./src/editor.vue?923d","webpack:///./src/editor.vue?6983","webpack:///./src/index.css","webpack:///./src/index.js","webpack:///external \"codemirror\"","webpack:///external \"codemirror/addon/display/fullscreen.js\"","webpack:///external \"codemirror/addon/display/placeholder.js\"","webpack:///external \"codemirror/addon/selection/active-line.js\"","webpack:///external \"codemirror/lib/codemirror.css\"","webpack:///external \"codemirror/mode/gfm/gfm.js\"","webpack:///external \"codemirror/mode/markdown/markdown.js\"","webpack:///external \"markdownparser\"","webpack:///external 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\t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = \"./src/index.js\");\n","<template>\n    <div :class=\"['v-md-container', css,{'v-md-auto-resize': height=='auto' }]\" :id=\"uid('container')\">\n        <div :id=\"uid('toolbar')\" class=\"v-md-toolbar\">\n            <div class=\"btn-group mr-3\" role=\"group\" v-for=\"group in toolbars\">\n                <button type=\"button\" :id=\"uid(i.id)\" :title=\"i.title\" :class=\"[buttonClass, {'ready': i.ready}]\"\n                    v-on:click=\"command(i.cmd)\" v-for=\"i in group\"><i :class=\"i.className\"\n                        aria-hidden=\"true\"></i></button>\n            </div>\n        </div>\n        <div class=\"v-md-wrapper\">\n            <textarea :id=\"uid('input')\" v-model=\"value\" :name=\"name\" :style=\"styles\"></textarea>\n            <div class=\"v-md-preview\" :id=\"uid('html-preview')\" v-if=\"preview\" v-html=\"html\">\n            </div>\n        </div>\n\n    </div>\n</template>\n\n\n\n<script>\n\n    import 'codemirror/lib/codemirror.css';\n    import './index.css';\n\n    import Markdown from 'markdownparser';\n    import Marked from 'marked';\n    import CodeMirror from 'codemirror';\n    import 'codemirror/addon/display/fullscreen.js';\n    import 'codemirror/mode/markdown/markdown.js';\n    import 'codemirror/mode/gfm/gfm.js';\n    import 'codemirror/addon/display/placeholder.js';\n    import 'codemirror/addon/selection/active-line.js';\n\n\n    export default {\n        props: {\n\n            css: {\n                type: String\n            },\n            width: {\n                type: String,\n                default: '100%'\n            },\n            height: {\n                type: String,\n                default: '300px'\n            },\n            toolbar: {\n                type: String,\n                default: 'clean redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen'\n            },\n            extend: {\n                type: Object\n\n            },\n            buttons: {\n                type: Object,\n                default: function () {\n\n                    return {\n\n                        'bold': {\n                            title: 'Bold',\n                            className: 'far fa-bold',\n                            cmd: 'bold',\n                            hotkey: 'Ctrl-B'\n                        },\n\n                        'italic': {\n                            title: 'Italic',\n                            className: \"far fa-italic\",\n                            cmd: 'italic',\n                            hotkey: 'Ctrl-I'\n                        },\n\n                        \"strikethrough\": {\n                            cmd: \"strikethrough\",\n                            className: \"far fa-strikethrough\",\n                            title: \"Strikethrough\"\n                        },\n\n                        'heading': {\n                            title: 'Heading',\n                            className: \"far fa-heading\",\n                            cmd: 'heading',\n                            hotkey: 'Ctrl-H'\n                        },\n\n                        'code': {\n                            title: 'Code',\n                            className: \"far fa-code\",\n                            cmd: 'code',\n                            hotkey: 'Ctrl-X'\n                        },\n                        'quote': {\n                            title: 'Quote',\n                            className: \"far fa-quote-left\",\n                            cmd: 'quote',\n                            hotkey: 'Ctrl-Q'\n                        },\n                        'link': {\n                            title: 'Link',\n                            className: \"far fa-link\",\n                            cmd: 'link',\n                            hotkey: 'Ctrl-K'\n                        },\n                        'image': {\n                            title: 'Image',\n                            className: \"far fa-image\",\n                            cmd: 'image',\n                            hotkey: 'Ctrl-P'\n                        },\n                        \"fullscreen\": {\n                            cmd: \"fullscreen\",\n                            className: \"far fa-arrows-alt no-disable no-mobile\",\n                            title: \"Toggle Fullscreen\",\n                            hotkey: 'F11',\n                            ready: true\n                        },\n                        \"preview\": {\n                            cmd: \"preview\",\n                            className: \"far fa-eye no-disable\",\n                            title: \"Toggle Preview\",\n                            hotkey: 'Ctrl-P',\n                            ready: true\n                        },\n\n                        \"clipboard\": {\n                            cmd: \"clipboard\",\n                            className: \"far fa-clipboard\",\n                            title: \"Copy & Markdown Format\",\n                            hotkey: 'Ctrl-V'\n                        },\n\n                        \"clean\": {\n                            cmd: \"clean\",\n                            className: \"far fa-remove-format\",\n                            title: \"Html to markdown\"\n                        },\n\n                        \"undo\": {\n                            cmd: \"undo\",\n                            className: \"far fa-undo\",\n                            title: \"Undo\",\n                            hotkey: 'Ctrl-Z'\n                        },\n\n                        \"redo\": {\n                            cmd: \"redo\",\n                            className: \"far fa-repeat\",\n                            title: \"Redo\",\n                            hotkey: 'Ctrl-Y'\n                        },\n\n                        \"bullist\": {\n                            cmd: \"bullist\",\n                            className: \"far fa-list-ul\",\n                            title: \"Generic List\",\n\n                        },\n                        \"numlist\": {\n                            cmd: \"numlist\",\n                            className: \"far fa-list-ol\",\n                            title: \"Numbered List\"\n                        }\n                    }\n\n                }\n            },\n            name: {\n                type: String,\n                default: 'html'\n            },\n            value: {\n                type: String,\n                default: '',\n                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arguments.length; i++) {\n                    a = a.replace(/%[a-z]/, arguments[i]);\n                }\n                return a; // Make chainable\n\n            },\n            uid(name) {\n                return this.format('%s-%s', this.id, name);\n            },\n            obj(name) {\n                return jQuery('#' + this.uid(name));\n            },\n\n            _toggleBlock(type, start, end) {\n\n                end = this.isEmpty(end) ? start : end;\n                var ed = this.editor;\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var text;\n                var stat = this.state();\n\n                if (stat[type]) {\n\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    if (type == \"bold\") {\n                        start = start.replace(/(\\*\\*|__)(?![\\s\\S]*(\\*\\*|__))/, \"\");\n                        end = end.replace(/(\\*\\*|__)/, \"\");\n                    } else if (type == \"italic\") {\n                        start = start.replace(/(\\*|_)(?![\\s\\S]*(\\*|_))/, \"\");\n                        end = end.replace(/(\\*|_)/, \"\");\n                    } else if (type == \"strikethrough\") {\n                        start = start.replace(/(\\*\\*|~~)(?![\\s\\S]*(\\*\\*|~~))/, \"\");\n                        end = end.replace(/(\\*\\*|~~)/, \"\");\n                    }\n                    ed.replaceRange(start + end, {\n                        line: startPoint.line,\n                        ch: 0\n                    }, {\n                        line: startPoint.line,\n                        ch: 99999999999999\n                    });\n\n                    if (type == \"bold\" || type == \"strikethrough\") {\n                        startPoint.ch -= 2;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 2;\n                        }\n                    } else if (type == \"italic\") {\n                        startPoint.ch -= 1;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 1;\n                        }\n                    }\n                } else {\n\n                    text = ed.getSelection();\n                    if (type == \"bold\") {\n                        text = text.split(\"**\").join(\"\");\n                        text = text.split(\"__\").join(\"\");\n                    } else if (type == \"italic\") {\n                        text = text.split(\"*\").join(\"\");\n                        text = text.split(\"_\").join(\"\");\n                    } else if (type == \"strikethrough\") {\n                        text = text.split(\"~~\").join(\"\");\n                    }\n                    ed.replaceSelection(start + text + end);\n\n                    startPoint.ch += start.length;\n                    endPoint.ch = startPoint.ch + text.length;\n                }\n\n                ed.setSelection(startPoint, endPoint);\n            },\n\n            _toggleLine(name) {\n                var ed = this.editor;\n                var stat = this.state();\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var repl = {\n                    \"quote\": /^(\\s*)\\>\\s+/,\n                    \"bullist\": /^(\\s*)(\\*|\\-|\\+)\\s+/,\n                    \"numlist\": /^(\\s*)\\d+\\.\\s+/\n                };\n                var map = {\n                    \"quote\": \"> \",\n                    \"bullist\": \"* \",\n                    \"numlist\": \"1. \"\n                };\n                for (var i = startPoint.line; i <= endPoint.line; i++) {\n                    (function (i) {\n                        var text = ed.getLine(i);\n                        if (stat[name]) {\n                            text = text.replace(repl[name], \"$1\");\n                        } else {\n                            text = map[name] + text;\n                        }\n                        ed.replaceRange(text, {\n                            line: i, ch: 0\n                        }, {\n                            line: i, ch: 99999999999999\n                        });\n                    })(i);\n                }\n\n            },\n\n            state(pos) {\n                pos = pos || this.editor.getCursor(\"start\");\n                var stat = this.editor.getTokenAt(pos);\n                if (!stat.type) return {};\n\n                var types = stat.type.split(\" \");\n\n                // console.log(types);\n\n                var ret = {},\n                    data, text;\n                for (var i = 0; i < types.length; i++) {\n                    data = types[i];\n                    if (data === \"strong\") {\n                        ret.bold = true;\n                    } else if (data === \"variable-2\") {\n                        text = this.editor.getLine(pos.line);\n                        if (/^\\s*\\d+\\.\\s/.test(text)) {\n                            ret[\"numlist\"] = true;\n                        } else {\n                            ret[\"bullist\"] = true;\n                        }\n                    } else if (data === \"atom\") {\n                        ret.quote = true;\n                    } else if (data === \"em\") {\n                        ret.italic = true;\n                    } else if (data === \"quote\") {\n                        ret.quote = true;\n                    } else if (data === \"strikethrough\") {\n                        ret.strikethrough = true;\n                    } else if (data === \"comment\") {\n                        ret.code = true;\n                    } else if (data === \"link\" || data === \"url\") {\n                        ret.link = true;\n                    } else if (data === \"image\") {\n                        ret.image = true;\n                    } else if (data.match(/^header(\\-[1-6])?$/)) {\n                        ret[data.replace(\"header\", \"heading\")] = true;\n                    }\n                }\n                return ret;\n            },\n\n            _replaceSelection(active, startEnd, val) {\n                var ed = this.editor;\n\n                var text;\n                var start = startEnd[0];\n                var end = startEnd[1];\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                if (val) {\n                    Object.keys(val).forEach(key => {\n                        start = start.replace('#' + key + '#', val[key]);\n                        end = end.replace('#' + key + '#', val[key]);\n                    });\n                }\n\n                if (active) {\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    ed.replaceRange(start + end, {\n                        line: startPoint.line,\n                        ch: 0\n                    });\n                } else {\n                    // text = ed.getSelection();\n                    // ed.replaceSelection(start + text + end);\n                    ed.replaceSelection(start + end);\n\n                    startPoint.ch += start.length;\n                    if (startPoint !== endPoint) {\n                        endPoint.ch += start.length;\n                    }\n                }\n                ed.setSelection(startPoint, endPoint);\n                ed.focus();\n\n            },\n\n            drawImage(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.image, [\"![#title#](\", '#url# \"#title#\")'], obj);\n            },\n\n            drawLink(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.link, ['[#title#]', '(#url# \"#title#\")'], obj);\n            },\n\n            command(key) {\n\n                var ed = this.editor;\n                var text = ed.getSelection();\n                var stat = this.state();\n\n                this.$root.$emit('markdown-editor:' + key, this);\n\n                switch (key) {\n                    case 'undo':\n                        ed.undo();\n                        break;\n\n                    case 'redo':\n                        ed.redo();\n                        break;\n\n                    case 'bold':\n                        this._toggleBlock('bold', '**');\n                        break;\n\n                    case 'italic':\n                        this._toggleBlock('italic', '*');\n                        break;\n\n                    case 'strikethrough':\n                        this._toggleBlock('strikethrough', '~~');\n                        break;\n\n                    case 'code':\n                        this._toggleBlock('code', '```');\n                        break;\n\n\n                    case 'heading':\n                        ed.replaceSelection('\\n### ' + text);\n                        break;\n\n                    case 'clipboard':\n                        this.obj('modal-clipboard').modal('show');\n                        break;\n\n                    case 'image':\n                        // this.obj('modal-image').modal('show');\n\n                        var url = prompt(\"Please enter image url\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : \"This is image title\";\n                            this.drawImage({ title: title, url: url });\n                        }\n                        break;\n\n                    case 'link':\n                        //this.obj('modal-link').modal('show');\n\n                        var url = prompt(\"Please enter link\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : url;\n                            this.drawLink({ title: title, url: url });\n\n                        }\n\n                        break;\n\n                    case 'quote':\n                        this._toggleLine('quote');\n                        break;\n\n                    case 'quote':\n                        this._toggleLine('quote');\n                        break;\n\n                    case 'numlist':\n                        this._toggleLine('numlist');\n                        break;\n\n                    case 'bullist':\n                        this._toggleLine('bullist');\n                        break;\n\n                    case 'preview':\n\n                        ///var md = new MarkdownIt({ typographer: true, breaks: true, quotes: '“”‘’' });\n\n                        this.html = Marked(ed.getValue(), { breaks: true });\n                        this.preview ^= true;\n\n                        this.obj('toolbar').find('.btn:not(\".ready\")').prop('disabled', this.preview);\n\n                        break;\n\n                    case 'fullscreen':\n\n                        this.obj('container').toggleClass('v-md-fullscreen');\n                        this.obj('fullscreen').toggleClass('active');\n                        ed.setOption(\"fullScreen\", !ed.getOption(\"fullScreen\"));\n\n                        break;\n\n                    case 'clean':\n                        text = Markdown.parse(text);\n                        ed.replaceSelection(text);\n\n                        break;\n\n                }\n\n                ed.focus();\n\n            },\n\n\n\n\n\n            build() {\n\n                if (!jQuery) {\n\n                    console.error(\"Must required jQuery!\");\n                    return;\n                }\n\n                if (this.isEmpty(this.toolbar)) {\n                    console.error(\"You must set toolbar!\");\n                    return;\n                }\n\n                if (this.__rendered) return;\n\n                var _t = this;\n\n                this.buttons = Object.assign(this.buttons, this.extend);\n\n                var btns = _t.toolbar.toLowerCase().split(/(\\s)/).filter(function (w) {\n                    return !_t.isEmpty(w);\n                });\n\n\n                var group = [];\n                for (var i = 0; i < btns.length; i++) {\n                    var btn = btns[i];\n                    var obj = _t.buttons[btn];\n                    if (obj) {\n                        // obj.cmd = typeof obj.cmd ==='function'? obj.cmd: this.command(obj.cmd);\n                        obj.id = btn;\n                        group.push(obj);\n\n                    }\n                    if (btn === '|' || i == btns.length - 1) {\n                        this.toolbars.push(group);\n                        group = [];\n                    }\n                }\n\n\n                var o = Object.assign({}, { extraKeys: _t.shortcuts, initialValue: _t.value }, _t.options);\n                var el = document.getElementById(_t.id + '-input');\n                _t.editor = CodeMirror.fromTextArea(el, o);\n                _t.editor.on(\"change\", function (ed) {\n                    //_t.editor.save();                    \n                    _t.$emit('input', ed.getValue());\n                    //_t.value = ed.getValue();\n                });\n\n                _t.editor.on(\"cursorActivity\", function () {\n                    var stat = _t.state();\n\n                    _t.obj('toolbar').find('.btn.active:not(.ready)').removeClass('active');\n                    Object.keys(stat).forEach(key => {\n                        _t.obj(key).addClass('active');\n\n                    });\n                });\n\n                _t.__rendered = true;\n\n\n            }\n        },\n        mounted() {\n\n            this.$nextTick(() => { this.build(); });\n\n        },\n        destroyed() {\n            this.editor = null;\n        }\n\n    }\n\n</script>","var render = function() {\n  var _vm = this\n  var _h = _vm.$createElement\n  var _c = _vm._self._c || _h\n  return _c(\n    \"div\",\n    {\n      class: [\n        \"v-md-container\",\n        _vm.css,\n        { \"v-md-auto-resize\": _vm.height == \"auto\" }\n      ],\n      attrs: { id: _vm.uid(\"container\") }\n    },\n    [\n      _c(\n        \"div\",\n        { staticClass: \"v-md-toolbar\", attrs: { id: _vm.uid(\"toolbar\") } },\n        _vm._l(_vm.toolbars, function(group) {\n          return _c(\n            \"div\",\n            { staticClass: \"btn-group mr-3\", attrs: { role: \"group\" } },\n            _vm._l(group, function(i) {\n              return _c(\n                \"button\",\n                {\n                  class: [_vm.buttonClass, { ready: i.ready }],\n                  attrs: { type: \"button\", id: _vm.uid(i.id), title: i.title },\n                  on: {\n                    click: function($event) {\n                      return _vm.command(i.cmd)\n                    }\n                  }\n                },\n                [\n                  _c(\"i\", {\n                    class: i.className,\n                    attrs: { \"aria-hidden\": \"true\" }\n                  })\n                ]\n              )\n            }),\n            0\n          )\n        }),\n        0\n      ),\n      _vm._v(\" \"),\n      _c(\"div\", { staticClass: \"v-md-wrapper\" }, [\n        _c(\"textarea\", {\n          directives: [\n            {\n              name: \"model\",\n              rawName: \"v-model\",\n              value: _vm.value,\n              expression: \"value\"\n            }\n          ],\n          style: _vm.styles,\n          attrs: { id: _vm.uid(\"input\"), name: _vm.name },\n          domProps: { value: _vm.value },\n          on: {\n            input: function($event) {\n              if ($event.target.composing) {\n                return\n              }\n              _vm.value = $event.target.value\n            }\n          }\n        }),\n        _vm._v(\" \"),\n        _vm.preview\n          ? _c(\"div\", {\n              staticClass: \"v-md-preview\",\n              attrs: { id: _vm.uid(\"html-preview\") },\n              domProps: { innerHTML: _vm._s(_vm.html) }\n            })\n          : _vm._e()\n      ])\n    ]\n  )\n}\nvar staticRenderFns = []\nrender._withStripped = true\n\nexport { render, staticRenderFns }","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functioal component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? [].concat(existing, hook)\n        : [hook]\n    }\n  }\n\n  return {\n    exports: scriptExports,\n    options: options\n  }\n}\n","import { render, staticRenderFns } from \"./editor.vue?vue&type=template&id=7c83f806&\"\nimport script from \"./editor.vue?vue&type=script&lang=js&\"\nexport * from \"./editor.vue?vue&type=script&lang=js&\"\n\n\n/* normalize component */\nimport normalizer from \"!../node_modules/vue-loader/lib/runtime/componentNormalizer.js\"\nvar component = normalizer(\n  script,\n  render,\n  staticRenderFns,\n  false,\n  null,\n  null,\n  null\n  \n)\n\n/* hot reload */\nif (module.hot) {\n  var api = require(\"/Users/nasa8x/nasa/projects/nodejs/v-markdown-editor/node_modules/vue-hot-reload-api/dist/index.js\")\n  api.install(require('vue'))\n  if (api.compatible) {\n    module.hot.accept()\n    if (!api.isRecorded('7c83f806')) {\n      api.createRecord('7c83f806', component.options)\n    } else {\n      api.reload('7c83f806', component.options)\n    }\n    module.hot.accept(\"./editor.vue?vue&type=template&id=7c83f806&\", function () {\n      api.rerender('7c83f806', {\n        render: render,\n        staticRenderFns: staticRenderFns\n      })\n    })\n  }\n}\ncomponent.options.__file = \"src/editor.vue\"\nexport default component.exports","import mod from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=script&lang=js&\"; export default mod; export * from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=script&lang=js&\"","export * from \"-!../node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=template&id=7c83f806&\"","// extracted by mini-css-extract-plugin","\nimport Editor from './editor.vue';\n\nvar MarkdownEditor = {\n    install: function (Vue) {\n        if (Vue.__md_editor_installed) {\n            return;\n        }\n\n        Vue.__md_editor_installed = true;\n\n        Vue.component('markdown-editor', Editor);\n    }\n};\n\nif (typeof window !== 'undefined' && window.Vue) {\n    Vue.use(MarkdownEditor);\n}\n\nexport default MarkdownEditor;\n\n\n// if (typeof exports == \"object\") {\n//     module.exports = MarkdownEditor;\n// } else if (typeof define == \"function\" && define.amd) {\n//     define([], function () { return MarkdownEditor; })\n// } else if (window.Vue) {\n//     Vue.use(MarkdownEditor);\n// }","module.exports = require(\"codemirror\");","module.exports = require(\"codemirror/addon/display/fullscreen.js\");","module.exports = require(\"codemirror/addon/display/placeholder.js\");","module.exports = require(\"codemirror/addon/selection/active-line.js\");","module.exports = require(\"codemirror/lib/codemirror.css\");","module.exports = require(\"codemirror/mode/gfm/gfm.js\");","module.exports = require(\"codemirror/mode/markdown/markdown.js\");","module.exports = require(\"markdownparser\");","module.exports = require(\"marked\");"],"sourceRoot":""}
\ No newline at end of file
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\t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = \"./src/index.js\");\n","<template>\n    <div :class=\"['v-md-container', css,{'v-md-auto-resize': height=='auto', 'v-md-fullscreen': fullScreen }]\">\n        <div class=\"v-md-toolbar\" v-if=\"toolbars.length>0\">\n            <div class=\"btn-group mr-3\" role=\"group\" v-for=\"group in toolbars\">\n                <button type=\"button\" :title=\"i.title\" :class=\"'btn btn-'+theme\" v-on:click=\"command(i.cmd)\"\n                    :disabled=\"preview && !i.ready\" v-for=\"i in group\"><i :class=\"i.ico\"></i></button>\n            </div>\n        </div>\n        <div class=\"v-md-wrapper\" v-on:click=\"editor.focus()\">\n            <textarea class=\"v-md-editor\" :style=\"styles\" :id=\"id\"></textarea>\n            <div class=\"v-md-preview\" v-if=\"preview\" v-html=\"html\"></div>\n        </div>\n\n    </div>\n</template>\n\n\n\n<script>\n\n\n\n    import Markdown from 'markdownparser';\n    import Marked from 'marked';\n\n    import CodeMirror from 'codemirror';\n    import 'codemirror/addon/display/fullscreen.js';\n    import 'codemirror/mode/markdown/markdown.js';\n    import 'codemirror/addon/display/placeholder.js';\n\n\n    export default {\n        props: {\n\n            id: {\n                type: String,\n                default: () => {\n                    return 'v-md-editor-' + Math.random().toString(16).substr(2, 9);\n                }\n            },\n\n            css: { type: String },\n\n            width: {\n                type: String,\n                default: '100%'\n            },\n            height: {\n                type: String,\n                default: '300px'\n            },\n            toolbar: {\n                type: String,\n                default: 'clean redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen'\n            },\n\n\n            extend: {\n                type: Object\n\n            },\n            buttons: {\n                type: Object,\n                default: function () {\n\n                    return {\n\n                        \"clean\": {\n                            cmd: \"clean\",\n                            ico: \"fas fa-remove-format mdi mdi-format-clear\",\n                            title: \"Html to markdown\",\n                            hotkey: 'Shift-Alt-F'\n                        },\n\n                        \"undo\": {\n                            cmd: \"undo\",\n                            ico: \"fas fa-undo mdi mdi-undo-variant\",\n                            title: \"Undo\",\n                            hotkey: 'Ctrl-Z'\n                        },\n\n                        \"redo\": {\n                            cmd: \"redo\",\n                            ico: \"fas fa-redo mdi mdi-redo-variant\",\n                            title: \"Redo\",\n                            hotkey: 'Ctrl-Y'\n                        },\n\n                        \"bullist\": {\n                            cmd: \"bullist\",\n                            ico: \"fas fa-list-ul mdi mdi-format-list-bulleted\",\n                            title: \"Generic List\",\n\n                        },\n                        \"numlist\": {\n                            cmd: \"numlist\",\n                            ico: \"fas fa-list-ol mdi mdi-format-list-numbered\",\n                            title: \"Numbered List\"\n                        },\n\n                        'bold': {\n                            title: 'Bold',\n                            ico: 'fas fa-bold mdi mdi-format-bold',\n                            cmd: 'bold',\n                            hotkey: 'Ctrl-B'\n                        },\n\n                        'italic': {\n                            title: 'Italic',\n                            ico: \"fas fa-italic mdi mdi-format-italic\",\n                            cmd: 'italic',\n                            hotkey: 'Ctrl-I'\n                        },\n\n                        \"strikethrough\": {\n                            cmd: \"strikethrough\",\n                            ico: \"fas fa-strikethrough mdi mdi-format-strikethrough\",\n                            title: \"Strikethrough\"\n                        },\n\n                        'heading': {\n                            title: 'Heading',\n                            ico: \"fas fa-heading mdi mdi-format-header-3\",\n                            cmd: 'heading',\n                            hotkey: 'Ctrl-H'\n                        },\n\n                        'code': {\n                            title: 'Code',\n                            ico: \"fas fa-code mdi mdi-code-tags\",\n                            cmd: 'code',\n                            hotkey: 'Ctrl-X'\n                        },\n                        'quote': {\n                            title: 'Quote',\n                            ico: \"fas fa-quote-left mdi mdi-format-quote-open\",\n                            cmd: 'quote',\n                            hotkey: 'Ctrl-Q'\n                        },\n                        'link': {\n                            title: 'Link',\n                            ico: \"fas fa-link mdi mdi-link\",\n                            cmd: 'link',\n                            hotkey: 'Ctrl-K'\n                        },\n                        'image': {\n                            title: 'Image',\n                            ico: \"fas fa-image mdi mdi-image\",\n                            cmd: 'image',\n                            hotkey: 'Ctrl-P'\n                        },\n                        \"fullscreen\": {\n                            cmd: \"fullscreen\",\n                            ico: \"fas fa-expand mdi mdi-fullscreen\",\n                            title: \"Toggle Fullscreen\",\n                            hotkey: 'F11',\n                            ready: true\n                        },\n                        \"preview\": {\n                            cmd: \"preview\",\n                            ico: \"fas fa-eye mdi mdi-eye\",\n                            title: \"Toggle Preview\",\n                            hotkey: 'Ctrl-P',\n                            ready: true\n                        }\n\n\n                    }\n\n                }\n            },\n\n\n            theme: {\n                type: String,\n                default: 'outline-secondary'\n            },\n\n            value: {\n                type: String,\n                default: '',\n                required: false\n            },\n\n            options: {\n                type: Object,\n                default: function () {\n                    return {\n\n                    }\n                }\n            },\n        },\n\n        data() {\n            return {\n\n                editor: null,\n                preview: false,\n                fullScreen: false,\n                html: '',\n                toolbars: [],                \n\n            }\n        },\n\n        computed: {\n            styles() {\n                return {\n                    width: isNaN(this.width) ? this.width : this.width + '%',\n                    height: isNaN(this.height) ? this.height : this.height + '%'\n                }\n            },\n\n        },\n\n        watch: {\n            value(val) {\n                if (val != this.editor.getValue()) {\n                    this.editor.setValue(val);\n                }\n            }\n        },\n\n        methods: {\n            isEmpty: function (s) {\n                return s === null || s === undefined ? true : /^[\\s\\xa0]*$/.test(s);\n            },\n            isUrl: function (s) {\n                return this.isEmpty(s) ? false : s.match(/((http(s)?):\\/\\/[\\w\\.\\/\\-=?#]+)/gi);\n            },\n            format() {\n                var a = arguments[0];\n                for (var i = 1; i <= arguments.length; i++) {\n                    a = a.replace(/%[a-z]/, arguments[i]);\n                }\n                return a; // Make chainable\n\n            },\n\n\n            _toggleBlock(type, start, end) {\n\n                end = this.isEmpty(end) ? start : end;\n                var ed = this.editor;\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var text;\n                var stat = this.state();\n\n                if (stat[type]) {\n\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    if (type == \"bold\") {\n                        start = start.replace(/(\\*\\*|__)(?![\\s\\S]*(\\*\\*|__))/, \"\");\n                        end = end.replace(/(\\*\\*|__)/, \"\");\n                    } else if (type == \"italic\") {\n                        start = start.replace(/(\\*|_)(?![\\s\\S]*(\\*|_))/, \"\");\n                        end = end.replace(/(\\*|_)/, \"\");\n                    } else if (type == \"strikethrough\") {\n                        start = start.replace(/(\\*\\*|~~)(?![\\s\\S]*(\\*\\*|~~))/, \"\");\n                        end = end.replace(/(\\*\\*|~~)/, \"\");\n                    }\n                    ed.replaceRange(start + end, {\n                        line: startPoint.line,\n                        ch: 0\n                    }, {\n                        line: startPoint.line,\n                        ch: 99999999999999\n                    });\n\n                    if (type == \"bold\" || type == \"strikethrough\") {\n                        startPoint.ch -= 2;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 2;\n                        }\n                    } else if (type == \"italic\") {\n                        startPoint.ch -= 1;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 1;\n                        }\n                    }\n                } else {\n\n                    text = ed.getSelection();\n                    if (type == \"bold\") {\n                        text = text.split(\"**\").join(\"\");\n                        text = text.split(\"__\").join(\"\");\n                    } else if (type == \"italic\") {\n                        text = text.split(\"*\").join(\"\");\n                        text = text.split(\"_\").join(\"\");\n                    } else if (type == \"strikethrough\") {\n                        text = text.split(\"~~\").join(\"\");\n                    }\n                    ed.replaceSelection(start + text + end);\n\n                    startPoint.ch += start.length;\n                    endPoint.ch = startPoint.ch + text.length;\n                }\n\n                // ed.setSelection(startPoint, endPoint);\n            },\n\n            _toggleLine(name) {\n                var ed = this.editor;\n                var stat = this.state();\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var repl = {\n                    \"quote\": /^(\\s*)\\>\\s+/,\n                    \"bullist\": /^(\\s*)(\\*|\\-|\\+)\\s+/,\n                    \"numlist\": /^(\\s*)\\d+\\.\\s+/\n                };\n                var map = {\n                    \"quote\": \"> \",\n                    \"bullist\": \"* \",\n                    \"numlist\": \"1. \"\n                };\n                for (var i = startPoint.line; i <= endPoint.line; i++) {\n                    (function (i) {\n                        var text = ed.getLine(i);\n                        if (stat[name]) {\n                            text = text.replace(repl[name], \"$1\");\n                        } else {\n                            text = map[name] + text;\n                        }\n                        ed.replaceRange(text, {\n                            line: i, ch: 0\n                        }, {\n                            line: i, ch: 99999999999999\n                        });\n                    })(i);\n                }\n\n            },\n\n            state(pos) {\n                pos = pos || this.editor.getCursor(\"start\");\n                var stat = this.editor.getTokenAt(pos);\n                if (!stat.type) return {};\n\n                var types = stat.type.split(\" \");\n\n                // console.log(types);\n\n                var ret = {},\n                    data, text;\n                for (var i = 0; i < types.length; i++) {\n                    data = types[i];\n                    if (data === \"strong\") {\n                        ret.bold = true;\n                    } else if (data === \"variable-2\") {\n                        text = this.editor.getLine(pos.line);\n                        if (/^\\s*\\d+\\.\\s/.test(text)) {\n                            ret[\"numlist\"] = true;\n                        } else {\n                            ret[\"bullist\"] = true;\n                        }\n                    } else if (data === \"atom\") {\n                        ret.quote = true;\n                    } else if (data === \"em\") {\n                        ret.italic = true;\n                    } else if (data === \"quote\") {\n                        ret.quote = true;\n                    } else if (data === \"strikethrough\") {\n                        ret.strikethrough = true;\n                    } else if (data === \"comment\") {\n                        ret.code = true;\n                    } else if (data === \"link\" || data === \"url\") {\n                        ret.link = true;\n                    } else if (data === \"image\") {\n                        ret.image = true;\n                    } else if (data.match(/^header(\\-[1-6])?$/)) {\n                        ret[data.replace(\"header\", \"heading\")] = true;\n                    }\n                }\n                return ret;\n            },\n\n            _replaceSelection(active, startEnd, val) {\n                var ed = this.editor;\n\n                var text;\n                var start = startEnd[0];\n                var end = startEnd[1];\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                if (val) {\n                    Object.keys(val).forEach(key => {\n                        start = start.replace('#' + key + '#', val[key]);\n                        end = end.replace('#' + key + '#', val[key]);\n                    });\n                }\n\n                if (active) {\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    ed.replaceRange(start + end, { line: startPoint.line, ch: 0 });\n                } else {\n\n                    ed.replaceSelection(start + end);\n                    startPoint.ch += start.length;\n                    if (startPoint !== endPoint) {\n                        endPoint.ch += start.length;\n                    }\n                }\n                //ed.setSelection(startPoint, endPoint);\n\n\n            },\n\n            drawImage(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.image, [\"![#title#](\", '#url# \"#title#\")'], obj);\n            },\n\n            drawLink(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.link, ['[#title#]', '(#url# \"#title#\")'], obj);\n            },\n\n            command(key) {\n\n                var ed = this.editor;\n                var text = ed.getSelection();\n\n                this.$root.$emit('markdown-editor:' + key, this);\n\n                switch (key) {\n                    case 'undo':\n                        ed.undo();\n                        break;\n\n                    case 'redo':\n                        ed.redo();\n                        break;\n\n                    case 'bold':\n                        this._toggleBlock('bold', '**');\n                        break;\n\n                    case 'italic':\n                        this._toggleBlock('italic', '*');\n                        break;\n\n                    case 'strikethrough':\n                        this._toggleBlock('strikethrough', '~~');\n                        break;\n\n                    case 'code':\n                        this._toggleBlock('code', '```');\n                        break;\n\n\n                    case 'heading':\n                        ed.replaceSelection('\\n### ' + text);\n                        break;\n\n\n                    case 'image':\n\n                        var url = prompt(\"Please enter image url\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : \"This is image title\";\n                            this.drawImage({ title: title, url: url });\n                        }\n                        break;\n\n                    case 'link':\n\n                        var url = prompt(\"Please enter link\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : url;\n                            this.drawLink({ title: title, url: url });\n\n                        }\n\n                        break;\n\n                    case 'quote':\n                        this._toggleLine('quote');\n                        break;\n\n                    case 'numlist':\n                        this._toggleLine('numlist');\n                        break;\n\n                    case 'bullist':\n                        this._toggleLine('bullist');\n                        break;\n\n\n                    case 'preview':\n\n                        this.html = Marked(ed.getValue(), { breaks: true });\n                        this.preview = !this.preview;\n\n                        break;\n\n                    case 'fullscreen':\n                        this.fullScreen = !this.fullScreen;\n                        ed.setOption(\"fullScreen\", !ed.getOption(\"fullScreen\"));\n                        break;\n\n                    case 'clean':\n                        ed.replaceSelection(Markdown.parse(text));\n                        break;\n\n                }\n\n            },\n\n            build() {\n\n                if (this.__rendered) return;\n\n                var buttons = Object.assign({}, this.buttons, this.extend);                \n\n                var shortcuts = {};\n\n                this.toolbar.split('|').forEach((t, i) => {\n                    var group = [];\n                    t.toLowerCase().split(/(\\s)/).forEach((b) => {\n\n                        if (!this.isEmpty(b)) {\n\n                            var btn = buttons[b];\n                            if (!this.isEmpty(btn.hotkey)) {\n                                shortcuts[btn.hotkey] = () => this.command(btn.cmd);\n                            }\n                            group.push(btn);\n                        }\n                    });\n\n                    if (group.length > 0)\n                        this.toolbars.push(group);\n\n                });\n\n                \n                var o = Object.assign({ mode: 'markdown', extraKeys: shortcuts }, this.options);\n\n                var ed = this.editor = CodeMirror.fromTextArea(document.getElementById(this.id), o);\n                ed.setValue(this.value);\n                ed.on(\"change\", (ed) => {\n                    this.$emit('input', ed.getValue());\n                });\n\n                this.__rendered = true;\n\n            }\n        },\n        mounted() {\n            this.build();\n        },\n\n      \n        destroyed() {\n\n            this.editor = null;\n        }\n\n    }\n\n</script>","var render = function() {\n  var _vm = this\n  var _h = _vm.$createElement\n  var _c = _vm._self._c || _h\n  return _c(\n    \"div\",\n    {\n      class: [\n        \"v-md-container\",\n        _vm.css,\n        {\n          \"v-md-auto-resize\": _vm.height == \"auto\",\n          \"v-md-fullscreen\": _vm.fullScreen\n        }\n      ]\n    },\n    [\n      _vm.toolbars.length > 0\n        ? _c(\n            \"div\",\n            { staticClass: \"v-md-toolbar\" },\n            _vm._l(_vm.toolbars, function(group) {\n              return _c(\n                \"div\",\n                { staticClass: \"btn-group mr-3\", attrs: { role: \"group\" } },\n                _vm._l(group, function(i) {\n                  return _c(\n                    \"button\",\n                    {\n                      class: \"btn btn-\" + _vm.theme,\n                      attrs: {\n                        type: \"button\",\n                        title: i.title,\n                        disabled: _vm.preview && !i.ready\n                      },\n                      on: {\n                        click: function($event) {\n                          return _vm.command(i.cmd)\n                        }\n                      }\n                    },\n                    [_c(\"i\", { class: i.ico })]\n                  )\n                }),\n                0\n              )\n            }),\n            0\n          )\n        : _vm._e(),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        {\n          staticClass: \"v-md-wrapper\",\n          on: {\n            click: function($event) {\n              return _vm.editor.focus()\n            }\n          }\n        },\n        [\n          _c(\"textarea\", {\n            staticClass: \"v-md-editor\",\n            style: _vm.styles,\n            attrs: { id: _vm.id }\n          }),\n          _vm._v(\" \"),\n          _vm.preview\n            ? _c(\"div\", {\n                staticClass: \"v-md-preview\",\n                domProps: { innerHTML: _vm._s(_vm.html) }\n              })\n            : _vm._e()\n        ]\n      )\n    ]\n  )\n}\nvar staticRenderFns = []\nrender._withStripped = true\n\nexport { render, staticRenderFns }","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functional component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? [].concat(existing, hook)\n        : [hook]\n    }\n  }\n\n  return {\n    exports: scriptExports,\n    options: options\n  }\n}\n","import { render, staticRenderFns } from \"./editor.vue?vue&type=template&id=7c83f806&\"\nimport script from \"./editor.vue?vue&type=script&lang=js&\"\nexport * from \"./editor.vue?vue&type=script&lang=js&\"\n\n\n/* normalize component */\nimport normalizer from \"!../node_modules/vue-loader/lib/runtime/componentNormalizer.js\"\nvar component = normalizer(\n  script,\n  render,\n  staticRenderFns,\n  false,\n  null,\n  null,\n  null\n  \n)\n\n/* hot reload */\nif (module.hot) {\n  var api = require(\"/Users/nasa8x/nasa/projects/nodejs/v-markdown-editor/node_modules/vue-hot-reload-api/dist/index.js\")\n  api.install(require('vue'))\n  if (api.compatible) {\n    module.hot.accept()\n    if (!api.isRecorded('7c83f806')) {\n      api.createRecord('7c83f806', component.options)\n    } else {\n      api.reload('7c83f806', component.options)\n    }\n    module.hot.accept(\"./editor.vue?vue&type=template&id=7c83f806&\", function () {\n      api.rerender('7c83f806', {\n        render: render,\n        staticRenderFns: staticRenderFns\n      })\n    })\n  }\n}\ncomponent.options.__file = \"src/editor.vue\"\nexport default component.exports","import mod from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=script&lang=js&\"; export default mod; export * from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=script&lang=js&\"","export * from \"-!../node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=template&id=7c83f806&\"","// extracted by mini-css-extract-plugin","\nimport 'codemirror/lib/codemirror.css';\nimport './index.css';\nimport Editor from './editor.vue';\n\n\nvar MarkdownEditor = {\n    install: function (Vue) {\n        if (Vue.__md_editor_installed) {\n            return;\n        }\n\n        Vue.__md_editor_installed = true;\n\n        Vue.component('markdown-editor', Editor);\n    }\n};\n\nif (typeof window !== 'undefined' && window.Vue) {\n    Vue.use(MarkdownEditor);\n}\n\nexport default MarkdownEditor;","module.exports = require(\"codemirror\");","module.exports = require(\"codemirror/addon/display/fullscreen.js\");","module.exports = require(\"codemirror/addon/display/placeholder.js\");","module.exports = require(\"codemirror/lib/codemirror.css\");","module.exports = require(\"codemirror/mode/markdown/markdown.js\");","module.exports = require(\"markdownparser\");","module.exports = require(\"marked\");"],"sourceRoot":""}
\ No newline at end of file
diff --git a/dist/index.min.js b/dist/index.min.js
index fcce370..4636d75 100644
--- a/dist/index.min.js
+++ b/dist/index.min.js
@@ -1 +1 @@
-!function(e,t){if("object"==typeof exports&&"object"==typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var i=t();for(var r in i)("object"==typeof exports?exports:e)[r]=i[r]}}(window,(function(){return function(e){var t={};function i(r){if(t[r])return t[r].exports;var o=t[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,i),o.l=!0,o.exports}return i.m=e,i.c=t,i.d=function(e,t,r){i.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},i.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},i.t=function(e,t){if(1&t&&(e=i(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(i.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)i.d(r,o,function(t){return e[t]}.bind(null,o));return r},i.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return i.d(t,"a",t),t},i.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},i.p="",i(i.s=10)}([function(e,t){e.exports=require("markdownparser")},function(e,t){e.exports=require("marked")},function(e,t){e.exports=require("codemirror")},function(e,t){e.exports=require("codemirror/lib/codemirror.css")},function(e,t,i){},function(e,t){e.exports=require("codemirror/addon/display/fullscreen.js")},function(e,t){e.exports=require("codemirror/mode/markdown/markdown.js")},function(e,t){e.exports=require("codemirror/mode/gfm/gfm.js")},function(e,t){e.exports=require("codemirror/addon/display/placeholder.js")},function(e,t){e.exports=require("codemirror/addon/selection/active-line.js")},function(e,t,i){"use strict";i.r(t);i(3),i(4);var r=i(0),o=i.n(r),n=i(1),s=i.n(n),a=i(2),l=i.n(a);i(5),i(6),i(7),i(8),i(9);var c=function(e,t,i,r,o,n,s,a){var l,c="function"==typeof e?e.options:e;if(t&&(c.render=t,c.staticRenderFns=i,c._compiled=!0),r&&(c.functional=!0),n&&(c._scopeId="data-v-"+n),s?(l=function(e){(e=e||this.$vnode&&this.$vnode.ssrContext||this.parent&&this.parent.$vnode&&this.parent.$vnode.ssrContext)||"undefined"==typeof __VUE_SSR_CONTEXT__||(e=__VUE_SSR_CONTEXT__),o&&o.call(this,e),e&&e._registeredComponents&&e._registeredComponents.add(s)},c._ssrRegister=l):o&&(l=a?function(){o.call(this,this.$root.$options.shadowRoot)}:o),l)if(c.functional){c._injectStyles=l;var u=c.render;c.render=function(e,t){return l.call(t),u(e,t)}}else{var d=c.beforeCreate;c.beforeCreate=d?[].concat(d,l):[l]}return{exports:e,options:c}}({props:{css:{type:String},width:{type:String,default:"100%"},height:{type:String,default:"300px"},toolbar:{type:String,default:"clean redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen"},extend:{type:Object},buttons:{type:Object,default:function(){return{bold:{title:"Bold",className:"far fa-bold",cmd:"bold",hotkey:"Ctrl-B"},italic:{title:"Italic",className:"far fa-italic",cmd:"italic",hotkey:"Ctrl-I"},strikethrough:{cmd:"strikethrough",className:"far fa-strikethrough",title:"Strikethrough"},heading:{title:"Heading",className:"far fa-heading",cmd:"heading",hotkey:"Ctrl-H"},code:{title:"Code",className:"far fa-code",cmd:"code",hotkey:"Ctrl-X"},quote:{title:"Quote",className:"far fa-quote-left",cmd:"quote",hotkey:"Ctrl-Q"},link:{title:"Link",className:"far fa-link",cmd:"link",hotkey:"Ctrl-K"},image:{title:"Image",className:"far fa-image",cmd:"image",hotkey:"Ctrl-P"},fullscreen:{cmd:"fullscreen",className:"far fa-arrows-alt no-disable no-mobile",title:"Toggle Fullscreen",hotkey:"F11",ready:!0},preview:{cmd:"preview",className:"far fa-eye no-disable",title:"Toggle Preview",hotkey:"Ctrl-P",ready:!0},clipboard:{cmd:"clipboard",className:"far fa-clipboard",title:"Copy & Markdown Format",hotkey:"Ctrl-V"},clean:{cmd:"clean",className:"far fa-remove-format",title:"Html to markdown"},undo:{cmd:"undo",className:"far fa-undo",title:"Undo",hotkey:"Ctrl-Z"},redo:{cmd:"redo",className:"far fa-repeat",title:"Redo",hotkey:"Ctrl-Y"},bullist:{cmd:"bullist",className:"far fa-list-ul",title:"Generic List"},numlist:{cmd:"numlist",className:"far fa-list-ol",title:"Numbered List"}}}},name:{type:String,default:"html"},value:{type:String,default:"",required:!1},buttonClass:{type:String,default:"btn btn-outline-secondary"},options:{type:Object,default:function(){return{mode:"gfm",theme:"elegent",lineNumbers:!1,styleActiveLine:!1,styleSelectedText:!0,lineWrapping:!0,indentWithTabs:!0,autoRefresh:!0,tabSize:2,indentUnit:2}}}},data:function(){return{id:"v-md-editor-"+(new Date).getTime(),editor:null,preview:!1,html:"",toolbars:[],shortcuts:{}}},watch:{value:function(e){e!=this.editor.getValue()&&this.editor.setValue(e)}},computed:{styles:function(){return{width:isNaN(this.width)?this.width:this.width+"%",height:isNaN(this.height)?this.height:this.height+"%"}}},methods:{isEmpty:function(e){return null==e||/^[\s\xa0]*$/.test(e)},isUrl:function(e){return!this.isEmpty(e)&&e.match(/((http(s)?):\/\/[\w\.\/\-=?#]+)/gi)},format:function(){for(var e=arguments[0],t=1;t<=arguments.length;t++)e=e.replace(/%[a-z]/,arguments[t]);return e},uid:function(e){return this.format("%s-%s",this.id,e)},obj:function(e){return jQuery("#"+this.uid(e))},_toggleBlock:function(e,t,i){i=this.isEmpty(i)?t:i;var 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diff --git a/dist/v-markdown-editor.css b/dist/v-markdown-editor.css
index 6b74f10..7b910e8 100644
--- a/dist/v-markdown-editor.css
+++ b/dist/v-markdown-editor.css
@@ -1,4 +1,4 @@
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diff --git a/dist/v-markdown-editor.css.map b/dist/v-markdown-editor.css.map
index aa1bb71..128e66c 100644
--- a/dist/v-markdown-editor.css.map
+++ b/dist/v-markdown-editor.css.map
@@ -1 +1 @@
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}\n\n/* PADDING */\n.CodeMirror-lines {\n  padding: 4px 0;\n  /* Vertical padding around content */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  padding: 0 4px;\n  /* Horizontal padding of content */ }\n\n.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n  background-color: white;\n  /* The little square between H and V scrollbars */ }\n\n/* GUTTER */\n.CodeMirror-gutters {\n  border-right: 1px solid #ddd;\n  background-color: #f7f7f7;\n  white-space: nowrap; }\n\n.CodeMirror-linenumber {\n  padding: 0 3px 0 5px;\n  min-width: 20px;\n  text-align: right;\n  color: #999;\n  white-space: nowrap; }\n\n.CodeMirror-guttermarker {\n  color: black; }\n\n.CodeMirror-guttermarker-subtle {\n  color: #999; }\n\n/* CURSOR */\n.CodeMirror-cursor {\n  border-left: 1px solid black;\n  border-right: none;\n  width: 0; }\n\n/* Shown when moving in bi-directional text */\n.CodeMirror div.CodeMirror-secondarycursor {\n  border-left: 1px solid silver; }\n\n.cm-fat-cursor .CodeMirror-cursor {\n  width: auto;\n  border: 0 !important;\n  background: #7e7; 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}\n\n.cm-s-default .cm-attribute {\n  color: #00c; }\n\n.cm-s-default .cm-hr {\n  color: #999; }\n\n.cm-s-default .cm-link {\n  color: #00c; }\n\n.cm-s-default .cm-error {\n  color: #f00; }\n\n.cm-invalidchar {\n  color: #f00; }\n\n.CodeMirror-composing {\n  border-bottom: 2px solid; }\n\n/* Default styles for common addons */\ndiv.CodeMirror span.CodeMirror-matchingbracket {\n  color: #0b0; }\n\ndiv.CodeMirror span.CodeMirror-nonmatchingbracket {\n  color: #a22; }\n\n.CodeMirror-matchingtag {\n  background: rgba(255, 150, 0, 0.3); }\n\n.CodeMirror-activeline-background {\n  background: #e8f2ff; }\n\n/* STOP */\n/* The rest of this file contains styles related to the mechanics of\n   the editor. You probably shouldn't touch them. */\n.CodeMirror {\n  position: relative;\n  overflow: hidden;\n  background: white; }\n\n.CodeMirror-scroll {\n  overflow: scroll !important;\n  /* Things will break if this is overridden */\n  /* 30px is the magic margin used to hide the element's real scrollbars */\n  /* See overflow: hidden in .CodeMirror */\n  margin-bottom: -30px;\n  margin-right: -30px;\n  padding-bottom: 30px;\n  height: 100%;\n  outline: none;\n  /* Prevent dragging from highlighting the element */\n  position: relative; }\n\n.CodeMirror-sizer {\n  position: relative;\n  border-right: 30px solid transparent; }\n\n/* The fake, visible scrollbars. Used to force redraw during scrolling\n   before actual scrolling happens, thus preventing shaking and\n   flickering artifacts. */\n.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n  position: absolute;\n  z-index: 6;\n  display: none; }\n\n.CodeMirror-vscrollbar {\n  right: 0;\n  top: 0;\n  overflow-x: hidden;\n  overflow-y: scroll; }\n\n.CodeMirror-hscrollbar {\n  bottom: 0;\n  left: 0;\n  overflow-y: hidden;\n  overflow-x: scroll; }\n\n.CodeMirror-scrollbar-filler {\n  right: 0;\n  bottom: 0; }\n\n.CodeMirror-gutter-filler {\n  left: 0;\n  bottom: 0; }\n\n.CodeMirror-gutters {\n  position: absolute;\n  left: 0;\n  top: 0;\n  min-height: 100%;\n  z-index: 3; }\n\n.CodeMirror-gutter {\n  white-space: normal;\n  height: 100%;\n  display: inline-block;\n  vertical-align: top;\n  margin-bottom: -30px; }\n\n.CodeMirror-gutter-wrapper {\n  position: absolute;\n  z-index: 4;\n  background: none !important;\n  border: none !important; }\n\n.CodeMirror-gutter-background {\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 4; }\n\n.CodeMirror-gutter-elt {\n  position: absolute;\n  cursor: default;\n  z-index: 4; }\n\n.CodeMirror-gutter-wrapper ::-moz-selection {\n  background-color: transparent; }\n\n.CodeMirror-gutter-wrapper ::selection {\n  background-color: transparent; }\n\n.CodeMirror-gutter-wrapper ::-moz-selection {\n  background-color: transparent; }\n\n.CodeMirror-lines {\n  cursor: text;\n  min-height: 1px;\n  /* prevents collapsing before first draw */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  /* Reset some styles that the rest of the page might have set */\n  border-radius: 0;\n  border-width: 0;\n  background: transparent;\n  font-family: inherit;\n  font-size: inherit;\n  margin: 0;\n  white-space: pre;\n  word-wrap: normal;\n  line-height: inherit;\n  color: inherit;\n  z-index: 2;\n  position: relative;\n  overflow: visible;\n  -webkit-tap-highlight-color: transparent;\n  font-variant-ligatures: contextual; }\n\n.CodeMirror-wrap pre.CodeMirror-line,\n.CodeMirror-wrap pre.CodeMirror-line-like {\n  word-wrap: break-word;\n  white-space: pre-wrap;\n  word-break: normal; }\n\n.CodeMirror-linebackground {\n  position: absolute;\n  left: 0;\n  right: 0;\n  top: 0;\n  bottom: 0;\n  z-index: 0; }\n\n.CodeMirror-linewidget {\n  position: relative;\n  z-index: 2;\n  padding: 0.1px;\n  /* Force widget margins to stay inside of the container */ }\n\n.CodeMirror-rtl pre {\n  direction: rtl; }\n\n.CodeMirror-code {\n  outline: none; }\n\n/* Force content-box sizing for the elements where we expect it */\n.CodeMirror-scroll,\n.CodeMirror-sizer,\n.CodeMirror-gutter,\n.CodeMirror-gutters,\n.CodeMirror-linenumber {\n  box-sizing: content-box; }\n\n.CodeMirror-measure {\n  position: absolute;\n  width: 100%;\n  height: 0;\n  overflow: hidden;\n  visibility: hidden; }\n\n.CodeMirror-cursor {\n  position: absolute;\n  pointer-events: none; }\n\n.CodeMirror-measure pre {\n  position: static; }\n\ndiv.CodeMirror-cursors {\n  visibility: hidden;\n  position: relative;\n  z-index: 3; }\n\ndiv.CodeMirror-dragcursors {\n  visibility: visible; }\n\n.CodeMirror-focused div.CodeMirror-cursors {\n  visibility: visible; }\n\n.CodeMirror-selected {\n  background: #d9d9d9; }\n\n.CodeMirror-focused .CodeMirror-selected {\n  background: #d7d4f0; }\n\n.CodeMirror-crosshair {\n  cursor: crosshair; }\n\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection {\n  background: #d7d4f0; }\n\n.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection {\n  background: #d7d4f0; }\n\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection {\n  background: #d7d4f0; }\n\n.cm-searching {\n  background-color: #ffa;\n  background-color: rgba(255, 255, 0, 0.4); }\n\n/* Used to force a border model for a node */\n.cm-force-border {\n  padding-right: .1px; }\n\n@media print {\n  /* Hide the cursor when printing */\n  .CodeMirror div.CodeMirror-cursors {\n    visibility: hidden; } }\n\n/* See issue #2901 */\n.cm-tab-wrap-hack:after {\n  content: ''; }\n\n/* Help users use markselection to safely style text background */\nspan.CodeMirror-selectedtext {\n  background: none; }\n",".v-md-container {\n  background: #f5f5f5;\n  border: solid 1px #ddd; }\n\n.v-md-container > .v-md-toolbar {\n  padding: 8px 5px;\n  border-bottom: solid 1px #ddd;\n  /* height: 52px; */ }\n\n.v-md-wrapper {\n  position: relative; }\n\n.v-md-preview {\n  position: absolute;\n  top: 0;\n  left: 0;\n  bottom: 0;\n  right: 0;\n  z-index: 999;\n  background: #fff;\n  padding: 5px;\n  overflow: auto;\n  color: #333;\n  height: auto !important; }\n\n.v-md-container .clipboard-text {\n  height: 250px; }\n\n.v-md-fullscreen {\n  width: 100%;\n  height: 100% !important;\n  top: 0;\n  left: 0;\n  right: 0;\n  bottom: 0;\n  position: fixed;\n  overflow: hidden;\n  z-index: 99999; }\n\n.v-md-container .CodeMirror {\n  font-family: Arial, Helvetica, sans-serif; }\n\n.v-md-auto-resize .CodeMirror {\n  height: auto !important; 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}\n\n/* PADDING */\n.CodeMirror-lines {\n  padding: 4px 0;\n  /* Vertical padding around content */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  padding: 0 4px;\n  /* Horizontal padding of content */ }\n\n.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n  background-color: white;\n  /* The little square between H and V scrollbars */ }\n\n/* GUTTER */\n.CodeMirror-gutters {\n  border-right: 1px solid #ddd;\n  background-color: #f7f7f7;\n  white-space: nowrap; }\n\n.CodeMirror-linenumber {\n  padding: 0 3px 0 5px;\n  min-width: 20px;\n  text-align: right;\n  color: #999;\n  white-space: nowrap; }\n\n.CodeMirror-guttermarker {\n  color: black; }\n\n.CodeMirror-guttermarker-subtle {\n  color: #999; }\n\n/* CURSOR */\n.CodeMirror-cursor {\n  border-left: 1px solid black;\n  border-right: none;\n  width: 0; }\n\n/* Shown when moving in bi-directional text */\n.CodeMirror div.CodeMirror-secondarycursor {\n  border-left: 1px solid silver; }\n\n.cm-fat-cursor .CodeMirror-cursor {\n  width: auto;\n  border: 0 !important;\n  background: #7e7; 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}\n\n.CodeMirror-gutter-background {\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 4; }\n\n.CodeMirror-gutter-elt {\n  position: absolute;\n  cursor: default;\n  z-index: 4; }\n\n.CodeMirror-gutter-wrapper ::-moz-selection {\n  background-color: transparent; }\n\n.CodeMirror-gutter-wrapper ::selection {\n  background-color: transparent; }\n\n.CodeMirror-gutter-wrapper ::-moz-selection {\n  background-color: transparent; }\n\n.CodeMirror-lines {\n  cursor: text;\n  min-height: 1px;\n  /* prevents collapsing before first draw */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  /* Reset some styles that the rest of the page might have set */\n  border-radius: 0;\n  border-width: 0;\n  background: transparent;\n  font-family: inherit;\n  font-size: inherit;\n  margin: 0;\n  white-space: pre;\n  word-wrap: normal;\n  line-height: inherit;\n  color: inherit;\n  z-index: 2;\n  position: relative;\n  overflow: visible;\n  -webkit-tap-highlight-color: transparent;\n  font-variant-ligatures: contextual; 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diff --git a/dist/v-markdown-editor.js b/dist/v-markdown-editor.js
index 644328b..ea5a121 100644
--- a/dist/v-markdown-editor.js
+++ b/dist/v-markdown-editor.js
@@ -105,26 +105,18 @@ return /******/ (function(modules) { // webpackBootstrap
 
 "use strict";
 __webpack_require__.r(__webpack_exports__);
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+/* harmony import */ var markdownparser__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! markdownparser */ "./node_modules/markdownparser/index.js");
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+/* harmony import */ var marked__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(marked__WEBPACK_IMPORTED_MODULE_1__);
+/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! codemirror */ "./node_modules/codemirror/lib/codemirror.js");
+/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(codemirror__WEBPACK_IMPORTED_MODULE_2__);
+/* harmony import */ var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! codemirror/addon/display/fullscreen.js */ "./node_modules/codemirror/addon/display/fullscreen.js");
+/* harmony import */ var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3__);
+/* harmony import */ var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! codemirror/mode/markdown/markdown.js */ "./node_modules/codemirror/mode/markdown/markdown.js");
+/* harmony import */ var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4___default = /*#__PURE__*/__webpack_require__.n(codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4__);
+/* harmony import */ var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! codemirror/addon/display/placeholder.js */ "./node_modules/codemirror/addon/display/placeholder.js");
+/* harmony import */ var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5__);
 //
 //
 //
@@ -143,12 +135,6 @@ __webpack_require__.r(__webpack_exports__);
 //
 //
 //
-//
-//
-
-
-
-
 
 
 
@@ -157,6 +143,12 @@ __webpack_require__.r(__webpack_exports__);
 
 /* harmony default export */ __webpack_exports__["default"] = ({
   props: {
+    id: {
+      type: String,
+      "default": function _default() {
+        return 'v-md-editor-' + Math.random().toString(16).substr(2, 9);
+      }
+    },
     css: {
       type: String
     },
@@ -179,151 +171,123 @@ __webpack_require__.r(__webpack_exports__);
       type: Object,
       "default": function _default() {
         return {
+          "clean": {
+            cmd: "clean",
+            ico: "fas fa-remove-format mdi mdi-format-clear",
+            title: "Html to markdown",
+            hotkey: 'Shift-Alt-F'
+          },
+          "undo": {
+            cmd: "undo",
+            ico: "fas fa-undo mdi mdi-undo-variant",
+            title: "Undo",
+            hotkey: 'Ctrl-Z'
+          },
+          "redo": {
+            cmd: "redo",
+            ico: "fas fa-redo mdi mdi-redo-variant",
+            title: "Redo",
+            hotkey: 'Ctrl-Y'
+          },
+          "bullist": {
+            cmd: "bullist",
+            ico: "fas fa-list-ul mdi mdi-format-list-bulleted",
+            title: "Generic List"
+          },
+          "numlist": {
+            cmd: "numlist",
+            ico: "fas fa-list-ol mdi mdi-format-list-numbered",
+            title: "Numbered List"
+          },
           'bold': {
             title: 'Bold',
-            className: 'far fa-bold',
+            ico: 'fas fa-bold mdi mdi-format-bold',
             cmd: 'bold',
             hotkey: 'Ctrl-B'
           },
           'italic': {
             title: 'Italic',
-            className: "far fa-italic",
+            ico: "fas fa-italic mdi mdi-format-italic",
             cmd: 'italic',
             hotkey: 'Ctrl-I'
           },
           "strikethrough": {
             cmd: "strikethrough",
-            className: "far fa-strikethrough",
+            ico: "fas fa-strikethrough mdi mdi-format-strikethrough",
             title: "Strikethrough"
           },
           'heading': {
             title: 'Heading',
-            className: "far fa-heading",
+            ico: "fas fa-heading mdi mdi-format-header-3",
             cmd: 'heading',
             hotkey: 'Ctrl-H'
           },
           'code': {
             title: 'Code',
-            className: "far fa-code",
+            ico: "fas fa-code mdi mdi-code-tags",
             cmd: 'code',
             hotkey: 'Ctrl-X'
           },
           'quote': {
             title: 'Quote',
-            className: "far fa-quote-left",
+            ico: "fas fa-quote-left mdi mdi-format-quote-open",
             cmd: 'quote',
             hotkey: 'Ctrl-Q'
           },
           'link': {
             title: 'Link',
-            className: "far fa-link",
+            ico: "fas fa-link mdi mdi-link",
             cmd: 'link',
             hotkey: 'Ctrl-K'
           },
           'image': {
             title: 'Image',
-            className: "far fa-image",
+            ico: "fas fa-image mdi mdi-image",
             cmd: 'image',
             hotkey: 'Ctrl-P'
           },
           "fullscreen": {
             cmd: "fullscreen",
-            className: "far fa-arrows-alt no-disable no-mobile",
+            ico: "fas fa-expand mdi mdi-fullscreen",
             title: "Toggle Fullscreen",
             hotkey: 'F11',
             ready: true
           },
           "preview": {
             cmd: "preview",
-            className: "far fa-eye no-disable",
+            ico: "fas fa-eye mdi mdi-eye",
             title: "Toggle Preview",
             hotkey: 'Ctrl-P',
             ready: true
-          },
-          "clipboard": {
-            cmd: "clipboard",
-            className: "far fa-clipboard",
-            title: "Copy & Markdown Format",
-            hotkey: 'Ctrl-V'
-          },
-          "clean": {
-            cmd: "clean",
-            className: "far fa-remove-format",
-            title: "Html to markdown"
-          },
-          "undo": {
-            cmd: "undo",
-            className: "far fa-undo",
-            title: "Undo",
-            hotkey: 'Ctrl-Z'
-          },
-          "redo": {
-            cmd: "redo",
-            className: "far fa-repeat",
-            title: "Redo",
-            hotkey: 'Ctrl-Y'
-          },
-          "bullist": {
-            cmd: "bullist",
-            className: "far fa-list-ul",
-            title: "Generic List"
-          },
-          "numlist": {
-            cmd: "numlist",
-            className: "far fa-list-ol",
-            title: "Numbered List"
           }
         };
       }
     },
-    name: {
+    theme: {
       type: String,
-      "default": 'html'
+      "default": 'outline-secondary'
     },
     value: {
       type: String,
       "default": '',
       required: false
     },
-    buttonClass: {
-      type: String,
-      "default": 'btn btn-outline-secondary'
-    },
     options: {
       type: Object,
       "default": function _default() {
-        return {
-          mode: 'gfm',
-          theme: "elegent",
-          lineNumbers: false,
-          styleActiveLine: false,
-          styleSelectedText: true,
-          lineWrapping: true,
-          indentWithTabs: true,
-          autoRefresh: true,
-          tabSize: 2,
-          indentUnit: 2
-        };
+        return {};
       }
     }
   },
   data: function data() {
     return {
-      id: 'v-md-editor-' + new Date().getTime(),
       editor: null,
       preview: false,
+      fullScreen: false,
       html: '',
-      toolbars: [],
-      shortcuts: {}
+      toolbars: []
     };
   },
-  watch: {
-    value: function value(val) {
-      if (val != this.editor.getValue()) {
-        this.editor.setValue(val);
-      }
-    }
-  },
   computed: {
     styles: function styles() {
       return {
@@ -332,6 +296,13 @@ __webpack_require__.r(__webpack_exports__);
       };
     }
   },
+  watch: {
+    value: function value(val) {
+      if (val != this.editor.getValue()) {
+        this.editor.setValue(val);
+      }
+    }
+  },
   methods: {
     isEmpty: function isEmpty(s) {
       return s === null || s === undefined ? true : /^[\s\xa0]*$/.test(s);
@@ -348,12 +319,6 @@ __webpack_require__.r(__webpack_exports__);
 
       return a; // Make chainable
     },
-    uid: function uid(name) {
-      return this.format('%s-%s', this.id, name);
-    },
-    obj: function obj(name) {
-      return jQuery('#' + this.uid(name));
-    },
     _toggleBlock: function _toggleBlock(type, start, end) {
       end = this.isEmpty(end) ? start : end;
       var ed = this.editor;
@@ -415,9 +380,8 @@ __webpack_require__.r(__webpack_exports__);
         ed.replaceSelection(start + text + end);
         startPoint.ch += start.length;
         endPoint.ch = startPoint.ch + text.length;
-      }
+      } // ed.setSelection(startPoint, endPoint);
 
-      ed.setSelection(startPoint, endPoint);
     },
     _toggleLine: function _toggleLine(name) {
       var ed = this.editor;
@@ -523,18 +487,14 @@ __webpack_require__.r(__webpack_exports__);
           ch: 0
         });
       } else {
-        // text = ed.getSelection();
-        // ed.replaceSelection(start + text + end);
         ed.replaceSelection(start + end);
         startPoint.ch += start.length;
 
         if (startPoint !== endPoint) {
           endPoint.ch += start.length;
         }
-      }
+      } //ed.setSelection(startPoint, endPoint);
 
-      ed.setSelection(startPoint, endPoint);
-      ed.focus();
     },
     drawImage: function drawImage(obj) {
       var stat = this.state();
@@ -549,7 +509,6 @@ __webpack_require__.r(__webpack_exports__);
     command: function command(key) {
       var ed = this.editor;
       var text = ed.getSelection();
-      var stat = this.state();
       this.$root.$emit('markdown-editor:' + key, this);
 
       switch (key) {
@@ -585,12 +544,7 @@ __webpack_require__.r(__webpack_exports__);
           ed.replaceSelection('\n### ' + text);
           break;
 
-        case 'clipboard':
-          this.obj('modal-clipboard').modal('show');
-          break;
-
         case 'image':
-          // this.obj('modal-image').modal('show');
           var url = prompt("Please enter image url", "https://");
 
           if (this.isUrl(url)) {
@@ -604,7 +558,6 @@ __webpack_require__.r(__webpack_exports__);
           break;
 
         case 'link':
-          //this.obj('modal-link').modal('show');
           var url = prompt("Please enter link", "https://");
 
           if (this.isUrl(url)) {
@@ -622,11 +575,6 @@ __webpack_require__.r(__webpack_exports__);
 
           break;
 
-        case 'quote':
-          this._toggleLine('quote');
-
-          break;
-
         case 'numlist':
           this._toggleLine('numlist');
 
@@ -638,99 +586,59 @@ __webpack_require__.r(__webpack_exports__);
           break;
 
         case 'preview':
-          ///var md = new MarkdownIt({ typographer: true, breaks: true, quotes: '“”‘’' });
-          this.html = marked__WEBPACK_IMPORTED_MODULE_3___default()(ed.getValue(), {
+          this.html = marked__WEBPACK_IMPORTED_MODULE_1___default()(ed.getValue(), {
             breaks: true
           });
-          this.preview ^= true;
-          this.obj('toolbar').find('.btn:not(".ready")').prop('disabled', this.preview);
+          this.preview = !this.preview;
           break;
 
         case 'fullscreen':
-          this.obj('container').toggleClass('v-md-fullscreen');
-          this.obj('fullscreen').toggleClass('active');
+          this.fullScreen = !this.fullScreen;
           ed.setOption("fullScreen", !ed.getOption("fullScreen"));
           break;
 
         case 'clean':
-          text = markdownparser__WEBPACK_IMPORTED_MODULE_2___default.a.parse(text);
-          ed.replaceSelection(text);
+          ed.replaceSelection(markdownparser__WEBPACK_IMPORTED_MODULE_0___default.a.parse(text));
           break;
       }
-
-      ed.focus();
     },
     build: function build() {
-      if (!jQuery) {
-        console.error("Must required jQuery!");
-        return;
-      }
-
-      if (this.isEmpty(this.toolbar)) {
-        console.error("You must set toolbar!");
-        return;
-      }
+      var _this = this;
 
       if (this.__rendered) return;
+      var buttons = Object.assign({}, this.buttons, this.extend);
+      var shortcuts = {};
+      this.toolbar.split('|').forEach(function (t, i) {
+        var group = [];
+        t.toLowerCase().split(/(\s)/).forEach(function (b) {
+          if (!_this.isEmpty(b)) {
+            var btn = buttons[b];
+
+            if (!_this.isEmpty(btn.hotkey)) {
+              shortcuts[btn.hotkey] = function () {
+                return _this.command(btn.cmd);
+              };
+            }
 
-      var _t = this;
-
-      this.buttons = Object.assign(this.buttons, this.extend);
-
-      var btns = _t.toolbar.toLowerCase().split(/(\s)/).filter(function (w) {
-        return !_t.isEmpty(w);
-      });
-
-      var group = [];
-
-      for (var i = 0; i < btns.length; i++) {
-        var btn = btns[i];
-        var obj = _t.buttons[btn];
-
-        if (obj) {
-          // obj.cmd = typeof obj.cmd ==='function'? obj.cmd: this.command(obj.cmd);
-          obj.id = btn;
-          group.push(obj);
-        }
-
-        if (btn === '|' || i == btns.length - 1) {
-          this.toolbars.push(group);
-          group = [];
-        }
-      }
-
-      var o = Object.assign({}, {
-        extraKeys: _t.shortcuts,
-        initialValue: _t.value
-      }, _t.options);
-      var el = document.getElementById(_t.id + '-input');
-      _t.editor = codemirror__WEBPACK_IMPORTED_MODULE_4___default.a.fromTextArea(el, o);
-
-      _t.editor.on("change", function (ed) {
-        //_t.editor.save();                    
-        _t.$emit('input', ed.getValue()); //_t.value = ed.getValue();
-
-      });
-
-      _t.editor.on("cursorActivity", function () {
-        var stat = _t.state();
-
-        _t.obj('toolbar').find('.btn.active:not(.ready)').removeClass('active');
-
-        Object.keys(stat).forEach(function (key) {
-          _t.obj(key).addClass('active');
+            group.push(btn);
+          }
         });
+        if (group.length > 0) _this.toolbars.push(group);
       });
-
-      _t.__rendered = true;
+      var o = Object.assign({
+        mode: 'markdown',
+        extraKeys: shortcuts
+      }, this.options);
+      var ed = this.editor = codemirror__WEBPACK_IMPORTED_MODULE_2___default.a.fromTextArea(document.getElementById(this.id), o);
+      ed.setValue(this.value);
+      ed.on("change", function (ed) {
+        _this.$emit('input', ed.getValue());
+      });
+      this.__rendered = true;
     }
   },
   mounted: function mounted() {
-    var _this = this;
-
-    this.$nextTick(function () {
-      _this.build();
-    });
+    this.build();
   },
   destroyed: function destroyed() {
     this.editor = null;
@@ -859,179 +767,6 @@ __webpack_require__.r(__webpack_exports__);
 
 /***/ }),
 
-/***/ "./node_modules/codemirror/addon/mode/overlay.js":
-/*!*******************************************************!*\
-  !*** ./node_modules/codemirror/addon/mode/overlay.js ***!
-  \*******************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: https://codemirror.net/LICENSE
-// Utility function that allows modes to be combined. The mode given
-// as the base argument takes care of most of the normal mode
-// functionality, but a second (typically simple) mode is used, which
-// can override the style of text. Both modes get to parse all of the
-// text, but when both assign a non-null style to a piece of code, the
-// overlay wins, unless the combine argument was true and not overridden,
-// or state.overlay.combineTokens was true, in which case the styles are
-// combined.
-(function (mod) {
-  if (true) // CommonJS
-    mod(__webpack_require__(/*! ../../lib/codemirror */ "./node_modules/codemirror/lib/codemirror.js"));else {}
-})(function (CodeMirror) {
-  "use strict";
-
-  CodeMirror.overlayMode = function (base, overlay, combine) {
-    return {
-      startState: function () {
-        return {
-          base: CodeMirror.startState(base),
-          overlay: CodeMirror.startState(overlay),
-          basePos: 0,
-          baseCur: null,
-          overlayPos: 0,
-          overlayCur: null,
-          streamSeen: null
-        };
-      },
-      copyState: function (state) {
-        return {
-          base: CodeMirror.copyState(base, state.base),
-          overlay: CodeMirror.copyState(overlay, state.overlay),
-          basePos: state.basePos,
-          baseCur: null,
-          overlayPos: state.overlayPos,
-          overlayCur: null
-        };
-      },
-      token: function (stream, state) {
-        if (stream != state.streamSeen || Math.min(state.basePos, state.overlayPos) < stream.start) {
-          state.streamSeen = stream;
-          state.basePos = state.overlayPos = stream.start;
-        }
-
-        if (stream.start == state.basePos) {
-          state.baseCur = base.token(stream, state.base);
-          state.basePos = stream.pos;
-        }
-
-        if (stream.start == state.overlayPos) {
-          stream.pos = stream.start;
-          state.overlayCur = overlay.token(stream, state.overlay);
-          state.overlayPos = stream.pos;
-        }
-
-        stream.pos = Math.min(state.basePos, state.overlayPos); // state.overlay.combineTokens always takes precedence over combine,
-        // unless set to null
-
-        if (state.overlayCur == null) return state.baseCur;else if (state.baseCur != null && state.overlay.combineTokens || combine && state.overlay.combineTokens == null) return state.baseCur + " " + state.overlayCur;else return state.overlayCur;
-      },
-      indent: base.indent && function (state, textAfter, line) {
-        return base.indent(state.base, textAfter, line);
-      },
-      electricChars: base.electricChars,
-      innerMode: function (state) {
-        return {
-          state: state.base,
-          mode: base
-        };
-      },
-      blankLine: function (state) {
-        var baseToken, overlayToken;
-        if (base.blankLine) baseToken = base.blankLine(state.base);
-        if (overlay.blankLine) overlayToken = overlay.blankLine(state.overlay);
-        return overlayToken == null ? baseToken : combine && baseToken != null ? baseToken + " " + overlayToken : overlayToken;
-      }
-    };
-  };
-});
-
-/***/ }),
-
-/***/ "./node_modules/codemirror/addon/selection/active-line.js":
-/*!****************************************************************!*\
-  !*** ./node_modules/codemirror/addon/selection/active-line.js ***!
-  \****************************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: https://codemirror.net/LICENSE
-(function (mod) {
-  if (true) // CommonJS
-    mod(__webpack_require__(/*! ../../lib/codemirror */ "./node_modules/codemirror/lib/codemirror.js"));else {}
-})(function (CodeMirror) {
-  "use strict";
-
-  var WRAP_CLASS = "CodeMirror-activeline";
-  var BACK_CLASS = "CodeMirror-activeline-background";
-  var GUTT_CLASS = "CodeMirror-activeline-gutter";
-  CodeMirror.defineOption("styleActiveLine", false, function (cm, val, old) {
-    var prev = old == CodeMirror.Init ? false : old;
-    if (val == prev) return;
-
-    if (prev) {
-      cm.off("beforeSelectionChange", selectionChange);
-      clearActiveLines(cm);
-      delete cm.state.activeLines;
-    }
-
-    if (val) {
-      cm.state.activeLines = [];
-      updateActiveLines(cm, cm.listSelections());
-      cm.on("beforeSelectionChange", selectionChange);
-    }
-  });
-
-  function clearActiveLines(cm) {
-    for (var i = 0; i < cm.state.activeLines.length; i++) {
-      cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS);
-      cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS);
-      cm.removeLineClass(cm.state.activeLines[i], "gutter", GUTT_CLASS);
-    }
-  }
-
-  function sameArray(a, b) {
-    if (a.length != b.length) return false;
-
-    for (var i = 0; i < a.length; i++) if (a[i] != b[i]) return false;
-
-    return true;
-  }
-
-  function updateActiveLines(cm, ranges) {
-    var active = [];
-
-    for (var i = 0; i < ranges.length; i++) {
-      var range = ranges[i];
-      var option = cm.getOption("styleActiveLine");
-      if (typeof option == "object" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty()) continue;
-      var line = cm.getLineHandleVisualStart(range.head.line);
-      if (active[active.length - 1] != line) active.push(line);
-    }
-
-    if (sameArray(cm.state.activeLines, active)) return;
-    cm.operation(function () {
-      clearActiveLines(cm);
-
-      for (var i = 0; i < active.length; i++) {
-        cm.addLineClass(active[i], "wrap", WRAP_CLASS);
-        cm.addLineClass(active[i], "background", BACK_CLASS);
-        cm.addLineClass(active[i], "gutter", GUTT_CLASS);
-      }
-
-      cm.state.activeLines = active;
-    });
-  }
-
-  function selectionChange(cm, sel) {
-    updateActiveLines(cm, sel.ranges);
-  }
-});
-
-/***/ }),
-
 /***/ "./node_modules/codemirror/lib/codemirror.css":
 /*!****************************************************!*\
   !*** ./node_modules/codemirror/lib/codemirror.css ***!
@@ -1770,7 +1505,8 @@ __webpack_require__.r(__webpack_exports__);
           order.push(new BidiSpan(0, start, i$7));
         } else {
           var pos = i$7,
-              at = order.length;
+              at = order.length,
+              isRTL = direction == "rtl" ? 1 : 0;
 
           for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
 
@@ -1778,6 +1514,7 @@ __webpack_require__.r(__webpack_exports__);
             if (countsAsNum.test(types[j$2])) {
               if (pos < j$2) {
                 order.splice(at, 0, new BidiSpan(1, pos, j$2));
+                at += isRTL;
               }
 
               var nstart = j$2;
@@ -1785,6 +1522,7 @@ __webpack_require__.r(__webpack_exports__);
               for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
 
               order.splice(at, 0, new BidiSpan(2, nstart, j$2));
+              at += isRTL;
               pos = j$2;
             } else {
               ++j$2;
@@ -1837,8 +1575,8 @@ __webpack_require__.r(__webpack_exports__);
     } else if (emitter.attachEvent) {
       emitter.attachEvent("on" + type, f);
     } else {
-      var map$$1 = emitter._handlers || (emitter._handlers = {});
-      map$$1[type] = (map$$1[type] || noHandlers).concat(f);
+      var map = emitter._handlers || (emitter._handlers = {});
+      map[type] = (map[type] || noHandlers).concat(f);
     }
   };
 
@@ -1852,14 +1590,14 @@ __webpack_require__.r(__webpack_exports__);
     } else if (emitter.detachEvent) {
       emitter.detachEvent("on" + type, f);
     } else {
-      var map$$1 = emitter._handlers,
-          arr = map$$1 && map$$1[type];
+      var map = emitter._handlers,
+          arr = map && map[type];
 
       if (arr) {
         var index = indexOf(arr, f);
 
         if (index > -1) {
-          map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1));
+          map[type] = arr.slice(0, index).concat(arr.slice(index + 1));
         }
       }
     }
@@ -2068,17 +1806,17 @@ __webpack_require__.r(__webpack_exports__);
       return false;
     }
   } : function (te) {
-    var range$$1;
+    var range;
 
     try {
-      range$$1 = te.ownerDocument.selection.createRange();
+      range = te.ownerDocument.selection.createRange();
     } catch (e) {}
 
-    if (!range$$1 || range$$1.parentElement() != te) {
+    if (!range || range.parentElement() != te) {
       return false;
     }
 
-    return range$$1.compareEndPoints("StartToEnd", range$$1) != 0;
+    return range.compareEndPoints("StartToEnd", range) != 0;
   };
 
   var hasCopyEvent = function () {
@@ -2313,11 +2051,10 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   StringStream.prototype.eatSpace = function () {
-    var this$1 = this;
     var start = this.pos;
 
     while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) {
-      ++this$1.pos;
+      ++this.pos;
     }
 
     return this.pos > start;
@@ -2649,14 +2386,12 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   Context.prototype.baseToken = function (n) {
-    var this$1 = this;
-
     if (!this.baseTokens) {
       return null;
     }
 
     while (this.baseTokens[this.baseTokenPos] <= n) {
-      this$1.baseTokenPos += 2;
+      this.baseTokenPos += 2;
     }
 
     var type = this.baseTokens[this.baseTokenPos + 1];
@@ -3420,8 +3155,8 @@ __webpack_require__.r(__webpack_exports__);
   // Such overlap is not allowed.
 
 
-  function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) {
-    var line = getLine(doc, lineNo$$1);
+  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+    var line = getLine(doc, lineNo);
     var sps = sawCollapsedSpans && line.markedSpans;
 
     if (sps) {
@@ -4416,10 +4151,12 @@ __webpack_require__.r(__webpack_exports__);
       lineView.alignable = null;
     }
 
+    var isWidget = classTest("CodeMirror-linewidget");
+
     for (var node = lineView.node.firstChild, next = void 0; node; node = next) {
       next = node.nextSibling;
 
-      if (node.className == "CodeMirror-linewidget") {
+      if (isWidget.test(node.className)) {
         lineView.node.removeChild(node);
       }
     }
@@ -4467,7 +4204,7 @@ __webpack_require__.r(__webpack_exports__);
 
     for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
       var widget = ws[i],
-          node = elt("div", [widget.node], "CodeMirror-linewidget");
+          node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""));
 
       if (!widget.handleMouseEvents) {
         node.setAttribute("cm-ignore-events", "true");
@@ -4755,13 +4492,13 @@ __webpack_require__.r(__webpack_exports__);
     bottom: 0
   };
 
-  function nodeAndOffsetInLineMap(map$$1, ch, bias) {
+  function nodeAndOffsetInLineMap(map, ch, bias) {
     var node, start, end, collapse, mStart, mEnd; // First, search the line map for the text node corresponding to,
     // or closest to, the target character.
 
-    for (var i = 0; i < map$$1.length; i += 3) {
-      mStart = map$$1[i];
-      mEnd = map$$1[i + 1];
+    for (var i = 0; i < map.length; i += 3) {
+      mStart = map[i];
+      mEnd = map[i + 1];
 
       if (ch < mStart) {
         start = 0;
@@ -4770,7 +4507,7 @@ __webpack_require__.r(__webpack_exports__);
       } else if (ch < mEnd) {
         start = ch - mStart;
         end = start + 1;
-      } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) {
+      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
         end = mEnd - mStart;
         start = end - 1;
 
@@ -4780,22 +4517,22 @@ __webpack_require__.r(__webpack_exports__);
       }
 
       if (start != null) {
-        node = map$$1[i + 2];
+        node = map[i + 2];
 
         if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) {
           collapse = bias;
         }
 
         if (bias == "left" && start == 0) {
-          while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) {
-            node = map$$1[(i -= 3) + 2];
+          while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+            node = map[(i -= 3) + 2];
             collapse = "left";
           }
         }
 
         if (bias == "right" && start == mEnd - mStart) {
-          while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) {
-            node = map$$1[(i += 3) + 2];
+          while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+            node = map[(i += 3) + 2];
             collapse = "right";
           }
         }
@@ -5268,13 +5005,13 @@ __webpack_require__.r(__webpack_exports__);
     return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x;
   }
 
-  function coordsCharInner(cm, lineObj, lineNo$$1, x, y) {
+  function coordsCharInner(cm, lineObj, lineNo, x, y) {
     // Move y into line-local coordinate space
     y -= heightAtLine(lineObj);
     var preparedMeasure = prepareMeasureForLine(cm, lineObj); // When directly calling `measureCharPrepared`, we have to adjust
     // for the widgets at this line.
 
-    var widgetHeight$$1 = widgetTopHeight(lineObj);
+    var widgetHeight = widgetTopHeight(lineObj);
     var begin = 0,
         end = lineObj.text.length,
         ltr = true;
@@ -5282,7 +5019,7 @@ __webpack_require__.r(__webpack_exports__);
     // which bidi section the coordinates fall into.
 
     if (order) {
-      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y);
+      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)(cm, lineObj, lineNo, preparedMeasure, order, x, y);
       ltr = part.level != 1; // The awkward -1 offsets are needed because findFirst (called
       // on these below) will treat its first bound as inclusive,
       // second as exclusive, but we want to actually address the
@@ -5299,8 +5036,8 @@ __webpack_require__.r(__webpack_exports__);
         boxAround = null;
     var ch = findFirst(function (ch) {
       var box = measureCharPrepared(cm, preparedMeasure, ch);
-      box.top += widgetHeight$$1;
-      box.bottom += widgetHeight$$1;
+      box.top += widgetHeight;
+      box.bottom += widgetHeight;
 
       if (!boxIsAfter(box, x, y, false)) {
         return false;
@@ -5333,19 +5070,19 @@ __webpack_require__.r(__webpack_exports__);
       // coordinates
 
 
-      sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" : measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y == ltr ? "after" : "before"; // Now get accurate coordinates for this place, in order to get a
+      sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" : measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y == ltr ? "after" : "before"; // Now get accurate coordinates for this place, in order to get a
       // base X position
 
-      var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), "line", lineObj, preparedMeasure);
+      var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
       baseX = coords.left;
       outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
     }
 
     ch = skipExtendingChars(lineObj.text, ch, 1);
-    return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX);
+    return PosWithInfo(lineNo, ch, sticky, outside, x - baseX);
   }
 
-  function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) {
+  function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
     // Bidi parts are sorted left-to-right, and in a non-line-wrapping
     // situation, we can take this ordering to correspond to the visual
     // ordering. This finds the first part whose end is after the given
@@ -5353,7 +5090,7 @@ __webpack_require__.r(__webpack_exports__);
     var index = findFirst(function (i) {
       var part = order[i],
           ltr = part.level != 1;
-      return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? "before" : "after"), "line", lineObj, preparedMeasure), x, y, true);
+      return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"), "line", lineObj, preparedMeasure), x, y, true);
     }, 0, order.length - 1);
     var part = order[index]; // If this isn't the first part, the part's start is also after
     // the coordinates, and the coordinates aren't on the same line as
@@ -5361,7 +5098,7 @@ __webpack_require__.r(__webpack_exports__);
 
     if (index > 0) {
       var ltr = part.level != 1;
-      var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? "after" : "before"), "line", lineObj, preparedMeasure);
+      var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"), "line", lineObj, preparedMeasure);
 
       if (boxIsAfter(start, x, y, true) && start.top > y) {
         part = order[index - 1];
@@ -5580,7 +5317,7 @@ __webpack_require__.r(__webpack_exports__);
     var coords = coordsChar(cm, x, y),
         line;
 
-    if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+    if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
       var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
       coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
     }
@@ -5845,20 +5582,20 @@ __webpack_require__.r(__webpack_exports__);
         continue;
       }
 
-      var range$$1 = doc.sel.ranges[i];
+      var range = doc.sel.ranges[i];
 
-      if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) {
+      if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) {
         continue;
       }
 
-      var collapsed = range$$1.empty();
+      var collapsed = range.empty();
 
       if (collapsed || cm.options.showCursorWhenSelecting) {
-        drawSelectionCursor(cm, range$$1.head, curFragment);
+        drawSelectionCursor(cm, range.head, curFragment);
       }
 
       if (!collapsed) {
-        drawSelectionRange(cm, range$$1, selFragment);
+        drawSelectionRange(cm, range, selFragment);
       }
     }
 
@@ -5888,7 +5625,7 @@ __webpack_require__.r(__webpack_exports__);
   } // Draws the given range as a highlighted selection
 
 
-  function drawSelectionRange(cm, range$$1, output) {
+  function drawSelectionRange(cm, range, output) {
     var display = cm.display,
         doc = cm.doc;
     var fragment = document.createDocumentFragment();
@@ -5987,8 +5724,8 @@ __webpack_require__.r(__webpack_exports__);
       };
     }
 
-    var sFrom = range$$1.from(),
-        sTo = range$$1.to();
+    var sFrom = range.from(),
+        sTo = range.to();
 
     if (sFrom.line == sTo.line) {
       drawForLine(sFrom.line, sFrom.ch, sTo.ch);
@@ -6390,9 +6127,9 @@ __webpack_require__.r(__webpack_exports__);
     }
   }
 
-  function scrollToRange(cm, range$$1) {
+  function scrollToRange(cm, range) {
     resolveScrollToPos(cm);
-    cm.curOp.scrollToPos = range$$1;
+    cm.curOp.scrollToPos = range;
   } // When an operation has its scrollToPos property set, and another
   // scroll action is applied before the end of the operation, this
   // 'simulates' scrolling that position into view in a cheap way, so
@@ -6400,13 +6137,13 @@ __webpack_require__.r(__webpack_exports__);
 
 
   function resolveScrollToPos(cm) {
-    var range$$1 = cm.curOp.scrollToPos;
+    var range = cm.curOp.scrollToPos;
 
-    if (range$$1) {
+    if (range) {
       cm.curOp.scrollToPos = null;
-      var from = estimateCoords(cm, range$$1.from),
-          to = estimateCoords(cm, range$$1.to);
-      scrollToCoordsRange(cm, from, to, range$$1.margin);
+      var from = estimateCoords(cm, range.from),
+          to = estimateCoords(cm, range.to);
+      scrollToCoordsRange(cm, from, to, range.margin);
     }
   }
 
@@ -6443,7 +6180,7 @@ __webpack_require__.r(__webpack_exports__);
   }
 
   function setScrollTop(cm, val, forceScroll) {
-    val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val);
+    val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));
 
     if (cm.display.scroller.scrollTop == val && !forceScroll) {
       return;
@@ -6460,7 +6197,7 @@ __webpack_require__.r(__webpack_exports__);
 
 
   function setScrollLeft(cm, val, isScroller, forceScroll) {
-    val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
+    val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
 
     if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) {
       return;
@@ -6601,9 +6338,9 @@ __webpack_require__.r(__webpack_exports__);
       // (when the bar is hidden). If it is still visible, we keep
       // it enabled, if it's hidden, we disable pointer events.
       var box = bar.getBoundingClientRect();
-      var elt$$1 = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2) : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
+      var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2) : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
 
-      if (elt$$1 != bar) {
+      if (elt != bar) {
         bar.style.pointerEvents = "none";
       } else {
         delay.set(1000, maybeDisable);
@@ -7120,10 +6857,8 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   DisplayUpdate.prototype.finish = function () {
-    var this$1 = this;
-
     for (var i = 0; i < this.events.length; i++) {
-      signal.apply(null, this$1.events[i]);
+      signal.apply(null, this.events[i]);
     }
   };
 
@@ -7177,11 +6912,11 @@ __webpack_require__.r(__webpack_exports__);
 
     if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
       var sel = window.getSelection(),
-          range$$1 = document.createRange();
-      range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
-      range$$1.collapse(false);
+          range = document.createRange();
+      range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
+      range.collapse(false);
       sel.removeAllRanges();
-      sel.addRange(range$$1);
+      sel.addRange(range);
       sel.extend(snapshot.focusNode, snapshot.focusOffset);
     }
   } // Does the actual updating of the line display. Bails out
@@ -7813,8 +7548,6 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   Selection.prototype.equals = function (other) {
-    var this$1 = this;
-
     if (other == this) {
       return true;
     }
@@ -7824,7 +7557,7 @@ __webpack_require__.r(__webpack_exports__);
     }
 
     for (var i = 0; i < this.ranges.length; i++) {
-      var here = this$1.ranges[i],
+      var here = this.ranges[i],
           there = other.ranges[i];
 
       if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) {
@@ -7836,21 +7569,18 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   Selection.prototype.deepCopy = function () {
-    var this$1 = this;
     var out = [];
 
     for (var i = 0; i < this.ranges.length; i++) {
-      out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head));
+      out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
     }
 
     return new Selection(out, this.primIndex);
   };
 
   Selection.prototype.somethingSelected = function () {
-    var this$1 = this;
-
     for (var i = 0; i < this.ranges.length; i++) {
-      if (!this$1.ranges[i].empty()) {
+      if (!this.ranges[i].empty()) {
         return true;
       }
     }
@@ -7859,14 +7589,12 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   Selection.prototype.contains = function (pos, end) {
-    var this$1 = this;
-
     if (!end) {
       end = pos;
     }
 
     for (var i = 0; i < this.ranges.length; i++) {
-      var range = this$1.ranges[i];
+      var range = this.ranges[i];
 
       if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) {
         return i;
@@ -8039,13 +7767,13 @@ __webpack_require__.r(__webpack_exports__);
   } // Perform a change on the document data structure.
 
 
-  function updateDoc(doc, change, markedSpans, estimateHeight$$1) {
+  function updateDoc(doc, change, markedSpans, estimateHeight) {
     function spansFor(n) {
       return markedSpans ? markedSpans[n] : null;
     }
 
     function update(line, text, spans) {
-      updateLine(line, text, spans, estimateHeight$$1);
+      updateLine(line, text, spans, estimateHeight);
       signalLater(line, "change", line, change);
     }
 
@@ -8053,7 +7781,7 @@ __webpack_require__.r(__webpack_exports__);
       var result = [];
 
       for (var i = start; i < end; ++i) {
-        result.push(new Line(text[i], spansFor(i), estimateHeight$$1));
+        result.push(new Line(text[i], spansFor(i), estimateHeight));
       }
 
       return result;
@@ -8089,7 +7817,7 @@ __webpack_require__.r(__webpack_exports__);
         update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
       } else {
         var added$1 = linesFor(1, text.length - 1);
-        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1));
+        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
         update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
         doc.insert(from.line + 1, added$1);
       }
@@ -8527,11 +8255,10 @@ __webpack_require__.r(__webpack_exports__);
     var obj = {
       ranges: sel.ranges,
       update: function (ranges) {
-        var this$1 = this;
         this.ranges = [];
 
         for (var i = 0; i < ranges.length; i++) {
-          this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), clipPos(doc, ranges[i].head));
+          this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), clipPos(doc, ranges[i].head));
         }
       },
       origin: options && options.origin
@@ -9215,13 +8942,12 @@ __webpack_require__.r(__webpack_exports__);
 
 
   function LeafChunk(lines) {
-    var this$1 = this;
     this.lines = lines;
     this.parent = null;
     var height = 0;
 
     for (var i = 0; i < lines.length; ++i) {
-      lines[i].parent = this$1;
+      lines[i].parent = this;
       height += lines[i].height;
     }
 
@@ -9234,11 +8960,9 @@ __webpack_require__.r(__webpack_exports__);
     },
     // Remove the n lines at offset 'at'.
     removeInner: function (at, n) {
-      var this$1 = this;
-
       for (var i = at, e = at + n; i < e; ++i) {
-        var line = this$1.lines[i];
-        this$1.height -= line.height;
+        var line = this.lines[i];
+        this.height -= line.height;
         cleanUpLine(line);
         signalLater(line, "delete");
       }
@@ -9252,20 +8976,17 @@ __webpack_require__.r(__webpack_exports__);
     // Insert the given array of lines at offset 'at', count them as
     // having the given height.
     insertInner: function (at, lines, height) {
-      var this$1 = this;
       this.height += height;
       this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
 
       for (var i = 0; i < lines.length; ++i) {
-        lines[i].parent = this$1;
+        lines[i].parent = this;
       }
     },
     // Used to iterate over a part of the tree.
     iterN: function (at, n, op) {
-      var this$1 = this;
-
       for (var e = at + n; at < e; ++at) {
-        if (op(this$1.lines[at])) {
+        if (op(this.lines[at])) {
           return true;
         }
       }
@@ -9273,7 +8994,6 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   function BranchChunk(children) {
-    var this$1 = this;
     this.children = children;
     var size = 0,
         height = 0;
@@ -9282,7 +9002,7 @@ __webpack_require__.r(__webpack_exports__);
       var ch = children[i];
       size += ch.chunkSize();
       height += ch.height;
-      ch.parent = this$1;
+      ch.parent = this;
     }
 
     this.size = size;
@@ -9295,21 +9015,20 @@ __webpack_require__.r(__webpack_exports__);
       return this.size;
     },
     removeInner: function (at, n) {
-      var this$1 = this;
       this.size -= n;
 
       for (var i = 0; i < this.children.length; ++i) {
-        var child = this$1.children[i],
+        var child = this.children[i],
             sz = child.chunkSize();
 
         if (at < sz) {
           var rm = Math.min(n, sz - at),
               oldHeight = child.height;
           child.removeInner(at, rm);
-          this$1.height -= oldHeight - child.height;
+          this.height -= oldHeight - child.height;
 
           if (sz == rm) {
-            this$1.children.splice(i--, 1);
+            this.children.splice(i--, 1);
             child.parent = null;
           }
 
@@ -9333,19 +9052,16 @@ __webpack_require__.r(__webpack_exports__);
       }
     },
     collapse: function (lines) {
-      var this$1 = this;
-
       for (var i = 0; i < this.children.length; ++i) {
-        this$1.children[i].collapse(lines);
+        this.children[i].collapse(lines);
       }
     },
     insertInner: function (at, lines, height) {
-      var this$1 = this;
       this.size += lines.length;
       this.height += height;
 
       for (var i = 0; i < this.children.length; ++i) {
-        var child = this$1.children[i],
+        var child = this.children[i],
             sz = child.chunkSize();
 
         if (at <= sz) {
@@ -9359,12 +9075,12 @@ __webpack_require__.r(__webpack_exports__);
             for (var pos = remaining; pos < child.lines.length;) {
               var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
               child.height -= leaf.height;
-              this$1.children.splice(++i, 0, leaf);
-              leaf.parent = this$1;
+              this.children.splice(++i, 0, leaf);
+              leaf.parent = this;
             }
 
             child.lines = child.lines.slice(0, remaining);
-            this$1.maybeSpill();
+            this.maybeSpill();
           }
 
           break;
@@ -9404,10 +9120,8 @@ __webpack_require__.r(__webpack_exports__);
       me.parent.maybeSpill();
     },
     iterN: function (at, n, op) {
-      var this$1 = this;
-
       for (var i = 0; i < this.children.length; ++i) {
-        var child = this$1.children[i],
+        var child = this.children[i],
             sz = child.chunkSize();
 
         if (at < sz) {
@@ -9430,12 +9144,10 @@ __webpack_require__.r(__webpack_exports__);
   }; // Line widgets are block elements displayed above or below a line.
 
   var LineWidget = function (doc, node, options) {
-    var this$1 = this;
-
     if (options) {
       for (var opt in options) {
         if (options.hasOwnProperty(opt)) {
-          this$1[opt] = options[opt];
+          this[opt] = options[opt];
         }
       }
     }
@@ -9445,7 +9157,6 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   LineWidget.prototype.clear = function () {
-    var this$1 = this;
     var cm = this.doc.cm,
         ws = this.line.widgets,
         line = this.line,
@@ -9456,7 +9167,7 @@ __webpack_require__.r(__webpack_exports__);
     }
 
     for (var i = 0; i < ws.length; ++i) {
-      if (ws[i] == this$1) {
+      if (ws[i] == this) {
         ws.splice(i--, 1);
       }
     }
@@ -9574,8 +9285,6 @@ __webpack_require__.r(__webpack_exports__);
 
 
   TextMarker.prototype.clear = function () {
-    var this$1 = this;
-
     if (this.explicitlyCleared) {
       return;
     }
@@ -9599,10 +9308,10 @@ __webpack_require__.r(__webpack_exports__);
         max = null;
 
     for (var i = 0; i < this.lines.length; ++i) {
-      var line = this$1.lines[i];
-      var span = getMarkedSpanFor(line.markedSpans, this$1);
+      var line = this.lines[i];
+      var span = getMarkedSpanFor(line.markedSpans, this);
 
-      if (cm && !this$1.collapsed) {
+      if (cm && !this.collapsed) {
         regLineChange(cm, lineNo(line), "text");
       } else if (cm) {
         if (span.to != null) {
@@ -9616,14 +9325,14 @@ __webpack_require__.r(__webpack_exports__);
 
       line.markedSpans = removeMarkedSpan(line.markedSpans, span);
 
-      if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm) {
+      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) {
         updateLineHeight(line, textHeight(cm.display));
       }
     }
 
     if (cm && this.collapsed && !cm.options.lineWrapping) {
       for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
-        var visual = visualLine(this$1.lines[i$1]),
+        var visual = visualLine(this.lines[i$1]),
             len = lineLength(visual);
 
         if (len > cm.display.maxLineLength) {
@@ -9668,8 +9377,6 @@ __webpack_require__.r(__webpack_exports__);
 
 
   TextMarker.prototype.find = function (side, lineObj) {
-    var this$1 = this;
-
     if (side == null && this.type == "bookmark") {
       side = 1;
     }
@@ -9677,8 +9384,8 @@ __webpack_require__.r(__webpack_exports__);
     var from, to;
 
     for (var i = 0; i < this.lines.length; ++i) {
-      var line = this$1.lines[i];
-      var span = getMarkedSpanFor(line.markedSpans, this$1);
+      var line = this.lines[i];
+      var span = getMarkedSpanFor(line.markedSpans, this);
 
       if (span.from != null) {
         from = Pos(lineObj ? line : lineNo(line), span.from);
@@ -9891,18 +9598,15 @@ __webpack_require__.r(__webpack_exports__);
 
 
   var SharedTextMarker = function (markers, primary) {
-    var this$1 = this;
     this.markers = markers;
     this.primary = primary;
 
     for (var i = 0; i < markers.length; ++i) {
-      markers[i].parent = this$1;
+      markers[i].parent = this;
     }
   };
 
   SharedTextMarker.prototype.clear = function () {
-    var this$1 = this;
-
     if (this.explicitlyCleared) {
       return;
     }
@@ -9910,7 +9614,7 @@ __webpack_require__.r(__webpack_exports__);
     this.explicitlyCleared = true;
 
     for (var i = 0; i < this.markers.length; ++i) {
-      this$1.markers[i].clear();
+      this.markers[i].clear();
     }
 
     signalLater(this, "clear");
@@ -10126,17 +9830,17 @@ __webpack_require__.r(__webpack_exports__);
       return clipPos(this, pos);
     },
     getCursor: function (start) {
-      var range$$1 = this.sel.primary(),
+      var range = this.sel.primary(),
           pos;
 
       if (start == null || start == "head") {
-        pos = range$$1.head;
+        pos = range.head;
       } else if (start == "anchor") {
-        pos = range$$1.anchor;
+        pos = range.anchor;
       } else if (start == "end" || start == "to" || start === false) {
-        pos = range$$1.to();
+        pos = range.to();
       } else {
-        pos = range$$1.from();
+        pos = range.from();
       }
 
       return pos;
@@ -10164,8 +9868,6 @@ __webpack_require__.r(__webpack_exports__);
       extendSelections(this, clipPosArray(this, heads), options);
     }),
     setSelections: docMethodOp(function (ranges, primary, options) {
-      var this$1 = this;
-
       if (!ranges.length) {
         return;
       }
@@ -10173,7 +9875,7 @@ __webpack_require__.r(__webpack_exports__);
       var out = [];
 
       for (var i = 0; i < ranges.length; i++) {
-        out[i] = new Range(clipPos(this$1, ranges[i].anchor), clipPos(this$1, ranges[i].head));
+        out[i] = new Range(clipPos(this, ranges[i].anchor), clipPos(this, ranges[i].head));
       }
 
       if (primary == null) {
@@ -10188,12 +9890,11 @@ __webpack_require__.r(__webpack_exports__);
       setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
     }),
     getSelection: function (lineSep) {
-      var this$1 = this;
       var ranges = this.sel.ranges,
           lines;
 
       for (var i = 0; i < ranges.length; i++) {
-        var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
+        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
         lines = lines ? lines.concat(sel) : sel;
       }
 
@@ -10204,15 +9905,14 @@ __webpack_require__.r(__webpack_exports__);
       }
     },
     getSelections: function (lineSep) {
-      var this$1 = this;
       var parts = [],
           ranges = this.sel.ranges;
 
       for (var i = 0; i < ranges.length; i++) {
-        var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
+        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
 
         if (lineSep !== false) {
-          sel = sel.join(lineSep || this$1.lineSeparator());
+          sel = sel.join(lineSep || this.lineSeparator());
         }
 
         parts[i] = sel;
@@ -10230,16 +9930,15 @@ __webpack_require__.r(__webpack_exports__);
       this.replaceSelections(dup, collapse, origin || "+input");
     },
     replaceSelections: docMethodOp(function (code, collapse, origin) {
-      var this$1 = this;
       var changes = [],
           sel = this.sel;
 
       for (var i = 0; i < sel.ranges.length; i++) {
-        var range$$1 = sel.ranges[i];
+        var range = sel.ranges[i];
         changes[i] = {
-          from: range$$1.from(),
-          to: range$$1.to(),
-          text: this$1.splitLines(code[i]),
+          from: range.from(),
+          to: range.to(),
+          text: this.splitLines(code[i]),
           origin: origin
         };
       }
@@ -10247,7 +9946,7 @@ __webpack_require__.r(__webpack_exports__);
       var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
 
       for (var i$1 = changes.length - 1; i$1 >= 0; i$1--) {
-        makeChange(this$1, changes[i$1]);
+        makeChange(this, changes[i$1]);
       }
 
       if (newSel) {
@@ -10297,7 +9996,11 @@ __webpack_require__.r(__webpack_exports__);
       };
     },
     clearHistory: function () {
+      var this$1 = this;
       this.history = new History(this.history.maxGeneration);
+      linkedDocs(this, function (doc) {
+        return doc.history = this$1.history;
+      }, true);
     },
     markClean: function () {
       this.cleanGeneration = this.changeGeneration(true);
@@ -10463,7 +10166,7 @@ __webpack_require__.r(__webpack_exports__);
       from = clipPos(this, from);
       to = clipPos(this, to);
       var found = [],
-          lineNo$$1 = from.line;
+          lineNo = from.line;
       this.iter(from.line, to.line + 1, function (line) {
         var spans = line.markedSpans;
 
@@ -10471,13 +10174,13 @@ __webpack_require__.r(__webpack_exports__);
           for (var i = 0; i < spans.length; i++) {
             var span = spans[i];
 
-            if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to || span.from == null && lineNo$$1 != from.line || span.from != null && lineNo$$1 == to.line && span.from >= to.ch) && (!filter || filter(span.marker))) {
+            if (!(span.to != null && lineNo == from.line && from.ch >= span.to || span.from == null && lineNo != from.line || span.from != null && lineNo == to.line && span.from >= to.ch) && (!filter || filter(span.marker))) {
               found.push(span.marker.parent || span.marker);
             }
           }
         }
 
-        ++lineNo$$1;
+        ++lineNo;
       });
       return found;
     },
@@ -10498,7 +10201,7 @@ __webpack_require__.r(__webpack_exports__);
     },
     posFromIndex: function (off) {
       var ch,
-          lineNo$$1 = this.first,
+          lineNo = this.first,
           sepSize = this.lineSeparator().length;
       this.iter(function (line) {
         var sz = line.text.length + sepSize;
@@ -10509,9 +10212,9 @@ __webpack_require__.r(__webpack_exports__);
         }
 
         off -= sz;
-        ++lineNo$$1;
+        ++lineNo;
       });
-      return clipPos(this, Pos(lineNo$$1, ch));
+      return clipPos(this, Pos(lineNo, ch));
     },
     indexFromPos: function (coords) {
       coords = clipPos(this, coords);
@@ -10577,23 +10280,21 @@ __webpack_require__.r(__webpack_exports__);
       return copy;
     },
     unlinkDoc: function (other) {
-      var this$1 = this;
-
       if (other instanceof CodeMirror) {
         other = other.doc;
       }
 
       if (this.linked) {
         for (var i = 0; i < this.linked.length; ++i) {
-          var link = this$1.linked[i];
+          var link = this.linked[i];
 
           if (link.doc != other) {
             continue;
           }
 
-          this$1.linked.splice(i, 1);
-          other.unlinkDoc(this$1);
-          detachSharedMarkers(findSharedMarkers(this$1));
+          this.linked.splice(i, 1);
+          other.unlinkDoc(this);
+          detachSharedMarkers(findSharedMarkers(this));
           break;
         }
       } // If the histories were shared, split them again
@@ -10681,38 +10382,53 @@ __webpack_require__.r(__webpack_exports__);
           text = Array(n),
           read = 0;
 
-      var loadFile = function (file, i) {
-        if (cm.options.allowDropFileTypes && indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
-          return;
-        }
-
-        var reader = new FileReader();
-        reader.onload = operation(cm, function () {
-          var content = reader.result;
-
-          if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
-            content = "";
-          }
-
-          text[i] = content;
-
-          if (++read == n) {
+      var markAsReadAndPasteIfAllFilesAreRead = function () {
+        if (++read == n) {
+          operation(cm, function () {
             pos = clipPos(cm.doc, pos);
             var change = {
               from: pos,
               to: pos,
-              text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+              text: cm.doc.splitLines(text.filter(function (t) {
+                return t != null;
+              }).join(cm.doc.lineSeparator())),
               origin: "paste"
             };
             makeChange(cm.doc, change);
-            setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
+            setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));
+          })();
+        }
+      };
+
+      var readTextFromFile = function (file, i) {
+        if (cm.options.allowDropFileTypes && indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
+          markAsReadAndPasteIfAllFilesAreRead();
+          return;
+        }
+
+        var reader = new FileReader();
+
+        reader.onerror = function () {
+          return markAsReadAndPasteIfAllFilesAreRead();
+        };
+
+        reader.onload = function () {
+          var content = reader.result;
+
+          if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
+            markAsReadAndPasteIfAllFilesAreRead();
+            return;
           }
-        });
+
+          text[i] = content;
+          markAsReadAndPasteIfAllFilesAreRead();
+        };
+
         reader.readAsText(file);
       };
 
-      for (var i = 0; i < n; ++i) {
-        loadFile(files[i], i);
+      for (var i = 0; i < files.length; i++) {
+        readTextFromFile(files[i], i);
       }
     } else {
       // Normal drop
@@ -11147,9 +10863,9 @@ __webpack_require__.r(__webpack_exports__);
     return keymap;
   }
 
-  function lookupKey(key, map$$1, handle, context) {
-    map$$1 = getKeyMap(map$$1);
-    var found = map$$1.call ? map$$1.call(key, context) : map$$1[key];
+  function lookupKey(key, map, handle, context) {
+    map = getKeyMap(map);
+    var found = map.call ? map.call(key, context) : map[key];
 
     if (found === false) {
       return "nothing";
@@ -11163,13 +10879,13 @@ __webpack_require__.r(__webpack_exports__);
       return "handled";
     }
 
-    if (map$$1.fallthrough) {
-      if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]") {
-        return lookupKey(key, map$$1.fallthrough, handle, context);
+    if (map.fallthrough) {
+      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]") {
+        return lookupKey(key, map.fallthrough, handle, context);
       }
 
-      for (var i = 0; i < map$$1.fallthrough.length; i++) {
-        var result = lookupKey(key, map$$1.fallthrough[i], handle, context);
+      for (var i = 0; i < map.fallthrough.length; i++) {
+        var result = lookupKey(key, map.fallthrough[i], handle, context);
 
         if (result) {
           return result;
@@ -11276,6 +10992,10 @@ __webpack_require__.r(__webpack_exports__);
 
   function endOfLine(visually, cm, lineObj, lineNo, dir) {
     if (visually) {
+      if (cm.doc.direction == "rtl") {
+        dir = -dir;
+      }
+
       var order = getOrder(lineObj, cm.doc.direction);
 
       if (order) {
@@ -11743,7 +11463,7 @@ __webpack_require__.r(__webpack_exports__);
     var order = getOrder(line, cm.doc.direction);
 
     if (!order || order[0].level == 0) {
-      var firstNonWS = Math.max(0, line.text.search(/\S/));
+      var firstNonWS = Math.max(start.ch, line.text.search(/\S/));
       var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
       return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky);
     }
@@ -11905,6 +11625,10 @@ __webpack_require__.r(__webpack_exports__);
       if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) {
         cm.replaceSelection("", null, "cut");
       }
+    }
+
+    if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand) {
+      document.execCommand("cut");
     } // Turn mouse into crosshair when Alt is held on Mac.
 
 
@@ -12260,12 +11984,12 @@ __webpack_require__.r(__webpack_exports__);
       start = posFromMouse(cm, event, true, true);
       ourIndex = -1;
     } else {
-      var range$$1 = rangeForUnit(cm, start, behavior.unit);
+      var range = rangeForUnit(cm, start, behavior.unit);
 
       if (behavior.extend) {
-        ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend);
+        ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend);
       } else {
-        ourRange = range$$1;
+        ourRange = range;
       }
     }
 
@@ -12328,16 +12052,16 @@ __webpack_require__.r(__webpack_exports__);
         cm.scrollIntoView(pos);
       } else {
         var oldRange = ourRange;
-        var range$$1 = rangeForUnit(cm, pos, behavior.unit);
+        var range = rangeForUnit(cm, pos, behavior.unit);
         var anchor = oldRange.anchor,
             head;
 
-        if (cmp(range$$1.anchor, anchor) > 0) {
-          head = range$$1.head;
-          anchor = minPos(oldRange.from(), range$$1.anchor);
+        if (cmp(range.anchor, anchor) > 0) {
+          head = range.head;
+          anchor = minPos(oldRange.from(), range.anchor);
         } else {
-          head = range$$1.anchor;
-          anchor = maxPos(oldRange.to(), range$$1.head);
+          head = range.anchor;
+          anchor = maxPos(oldRange.to(), range.head);
         }
 
         var ranges$1 = startSel.ranges.slice(0);
@@ -12420,32 +12144,32 @@ __webpack_require__.r(__webpack_exports__);
   // of a bidi jump depending on the visual position of the head.
 
 
-  function bidiSimplify(cm, range$$1) {
-    var anchor = range$$1.anchor;
-    var head = range$$1.head;
+  function bidiSimplify(cm, range) {
+    var anchor = range.anchor;
+    var head = range.head;
     var anchorLine = getLine(cm.doc, anchor.line);
 
     if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) {
-      return range$$1;
+      return range;
     }
 
     var order = getOrder(anchorLine);
 
     if (!order) {
-      return range$$1;
+      return range;
     }
 
     var index = getBidiPartAt(order, anchor.ch, anchor.sticky),
         part = order[index];
 
     if (part.from != anchor.ch && part.to != anchor.ch) {
-      return range$$1;
+      return range;
     }
 
     var boundary = index + (part.from == anchor.ch == (part.level != 1) ? 0 : 1);
 
     if (boundary == 0 || boundary == order.length) {
-      return range$$1;
+      return range;
     } // Compute the relative visual position of the head compared to the
     // anchor (<0 is to the left, >0 to the right)
 
@@ -12469,7 +12193,7 @@ __webpack_require__.r(__webpack_exports__);
     var from = leftSide == (usePart.level == 1);
     var ch = from ? usePart.from : usePart.to,
         sticky = from ? "after" : "before";
-    return anchor.ch == ch && anchor.sticky == sticky ? range$$1 : new Range(new Pos(anchor.line, ch, sticky), head);
+    return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head);
   } // Determines whether an event happened in the gutter, and fires the
   // handlers for the corresponding event.
 
@@ -12858,7 +12582,7 @@ __webpack_require__.r(__webpack_exports__);
 
     for (var opt in optionHandlers) {
       if (optionHandlers.hasOwnProperty(opt)) {
-        optionHandlers[opt](this$1, options[opt], Init);
+        optionHandlers[opt](this, options[opt], Init);
       }
     }
 
@@ -12869,7 +12593,7 @@ __webpack_require__.r(__webpack_exports__);
     }
 
     for (var i = 0; i < initHooks.length; ++i) {
-      initHooks[i](this$1);
+      initHooks[i](this);
     }
 
     endOperation(this); // Suppress optimizelegibility in Webkit, since it breaks text
@@ -12916,6 +12640,11 @@ __webpack_require__.r(__webpack_exports__);
 
     on(d.scroller, "contextmenu", function (e) {
       return onContextMenu(cm, e);
+    });
+    on(d.input.getField(), "contextmenu", function (e) {
+      if (!d.scroller.contains(e.target)) {
+        onContextMenu(cm, e);
+      }
     }); // Used to suppress mouse event handling when a touch happens
 
     var touchFinished,
@@ -13200,11 +12929,11 @@ __webpack_require__.r(__webpack_exports__);
     var updateInput = cm.curOp.updateInput; // Normal behavior is to insert the new text into every selection
 
     for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
-      var range$$1 = sel.ranges[i$1];
-      var from = range$$1.from(),
-          to = range$$1.to();
+      var range = sel.ranges[i$1];
+      var from = range.from(),
+          to = range.to();
 
-      if (range$$1.empty()) {
+      if (range.empty()) {
         if (deleted && deleted > 0) // Handle deletion
           {
             from = Pos(from.line, from.ch - deleted);
@@ -13265,30 +12994,30 @@ __webpack_require__.r(__webpack_exports__);
     var sel = cm.doc.sel;
 
     for (var i = sel.ranges.length - 1; i >= 0; i--) {
-      var range$$1 = sel.ranges[i];
+      var range = sel.ranges[i];
 
-      if (range$$1.head.ch > 100 || i && sel.ranges[i - 1].head.line == range$$1.head.line) {
+      if (range.head.ch > 100 || i && sel.ranges[i - 1].head.line == range.head.line) {
         continue;
       }
 
-      var mode = cm.getModeAt(range$$1.head);
+      var mode = cm.getModeAt(range.head);
       var indented = false;
 
       if (mode.electricChars) {
         for (var j = 0; j < mode.electricChars.length; j++) {
           if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
-            indented = indentLine(cm, range$$1.head.line, "smart");
+            indented = indentLine(cm, range.head.line, "smart");
             break;
           }
         }
       } else if (mode.electricInput) {
-        if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch))) {
-          indented = indentLine(cm, range$$1.head.line, "smart");
+        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch))) {
+          indented = indentLine(cm, range.head.line, "smart");
         }
       }
 
       if (indented) {
-        signalLater(cm, "electricInput", cm, range$$1.head.line);
+        signalLater(cm, "electricInput", cm, range.head.line);
       }
     }
   }
@@ -13378,14 +13107,14 @@ __webpack_require__.r(__webpack_exports__);
       getDoc: function () {
         return this.doc;
       },
-      addKeyMap: function (map$$1, bottom) {
-        this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map$$1));
+      addKeyMap: function (map, bottom) {
+        this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
       },
-      removeKeyMap: function (map$$1) {
+      removeKeyMap: function (map) {
         var maps = this.state.keyMaps;
 
         for (var i = 0; i < maps.length; ++i) {
-          if (maps[i] == map$$1 || maps[i].name == map$$1) {
+          if (maps[i] == map || maps[i].name == map) {
             maps.splice(i, 1);
             return true;
           }
@@ -13410,7 +13139,6 @@ __webpack_require__.r(__webpack_exports__);
         regChange(this);
       }),
       removeOverlay: methodOp(function (spec) {
-        var this$1 = this;
         var overlays = this.state.overlays;
 
         for (var i = 0; i < overlays.length; ++i) {
@@ -13418,8 +13146,8 @@ __webpack_require__.r(__webpack_exports__);
 
           if (cur == spec || typeof spec == "string" && cur.name == spec) {
             overlays.splice(i, 1);
-            this$1.state.modeGen++;
-            regChange(this$1);
+            this.state.modeGen++;
+            regChange(this);
             return;
           }
         }
@@ -13438,34 +13166,33 @@ __webpack_require__.r(__webpack_exports__);
         }
       }),
       indentSelection: methodOp(function (how) {
-        var this$1 = this;
         var ranges = this.doc.sel.ranges,
             end = -1;
 
         for (var i = 0; i < ranges.length; i++) {
-          var range$$1 = ranges[i];
+          var range = ranges[i];
 
-          if (!range$$1.empty()) {
-            var from = range$$1.from(),
-                to = range$$1.to();
+          if (!range.empty()) {
+            var from = range.from(),
+                to = range.to();
             var start = Math.max(end, from.line);
-            end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+            end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
 
             for (var j = start; j < end; ++j) {
-              indentLine(this$1, j, how);
+              indentLine(this, j, how);
             }
 
-            var newRanges = this$1.doc.sel.ranges;
+            var newRanges = this.doc.sel.ranges;
 
             if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) {
-              replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
+              replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
             }
-          } else if (range$$1.head.line > end) {
-            indentLine(this$1, range$$1.head.line, how, true);
-            end = range$$1.head.line;
+          } else if (range.head.line > end) {
+            indentLine(this, range.head.line, how, true);
+            end = range.head.line;
 
-            if (i == this$1.doc.sel.primIndex) {
-              ensureCursorVisible(this$1);
+            if (i == this.doc.sel.primIndex) {
+              ensureCursorVisible(this);
             }
           }
         }
@@ -13519,7 +13246,6 @@ __webpack_require__.r(__webpack_exports__);
         return this.getHelpers(pos, type)[0];
       },
       getHelpers: function (pos, type) {
-        var this$1 = this;
         var found = [];
 
         if (!helpers.hasOwnProperty(type)) {
@@ -13550,7 +13276,7 @@ __webpack_require__.r(__webpack_exports__);
         for (var i$1 = 0; i$1 < help._global.length; i$1++) {
           var cur = help._global[i$1];
 
-          if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1) {
+          if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) {
             found.push(cur.val);
           }
         }
@@ -13564,14 +13290,14 @@ __webpack_require__.r(__webpack_exports__);
       },
       cursorCoords: function (start, mode) {
         var pos,
-            range$$1 = this.doc.sel.primary();
+            range = this.doc.sel.primary();
 
         if (start == null) {
-          pos = range$$1.head;
+          pos = range.head;
         } else if (typeof start == "object") {
           pos = clipPos(this.doc, start);
         } else {
-          pos = start ? range$$1.from() : range$$1.to();
+          pos = start ? range.from() : range.to();
         }
 
         return cursorCoords(this, pos, mode || "page");
@@ -13691,7 +13417,6 @@ __webpack_require__.r(__webpack_exports__);
         triggerElectric(this, text);
       }),
       findPosH: function (from, amount, unit, visually) {
-        var this$1 = this;
         var dir = 1;
 
         if (amount < 0) {
@@ -13702,7 +13427,7 @@ __webpack_require__.r(__webpack_exports__);
         var cur = clipPos(this.doc, from);
 
         for (var i = 0; i < amount; ++i) {
-          cur = findPosH(this$1.doc, cur, dir, unit, visually);
+          cur = findPosH(this.doc, cur, dir, unit, visually);
 
           if (cur.hitSide) {
             break;
@@ -13713,11 +13438,11 @@ __webpack_require__.r(__webpack_exports__);
       },
       moveH: methodOp(function (dir, unit) {
         var this$1 = this;
-        this.extendSelectionsBy(function (range$$1) {
-          if (this$1.display.shift || this$1.doc.extend || range$$1.empty()) {
-            return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually);
+        this.extendSelectionsBy(function (range) {
+          if (this$1.display.shift || this$1.doc.extend || range.empty()) {
+            return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually);
           } else {
-            return dir < 0 ? range$$1.from() : range$$1.to();
+            return dir < 0 ? range.from() : range.to();
           }
         }, sel_move);
       }),
@@ -13728,20 +13453,19 @@ __webpack_require__.r(__webpack_exports__);
         if (sel.somethingSelected()) {
           doc.replaceSelection("", null, "+delete");
         } else {
-          deleteNearSelection(this, function (range$$1) {
-            var other = findPosH(doc, range$$1.head, dir, unit, false);
+          deleteNearSelection(this, function (range) {
+            var other = findPosH(doc, range.head, dir, unit, false);
             return dir < 0 ? {
               from: other,
-              to: range$$1.head
+              to: range.head
             } : {
-              from: range$$1.head,
+              from: range.head,
               to: other
             };
           });
         }
       }),
       findPosV: function (from, amount, unit, goalColumn) {
-        var this$1 = this;
         var dir = 1,
             x = goalColumn;
 
@@ -13753,7 +13477,7 @@ __webpack_require__.r(__webpack_exports__);
         var cur = clipPos(this.doc, from);
 
         for (var i = 0; i < amount; ++i) {
-          var coords = cursorCoords(this$1, cur, "div");
+          var coords = cursorCoords(this, cur, "div");
 
           if (x == null) {
             x = coords.left;
@@ -13761,7 +13485,7 @@ __webpack_require__.r(__webpack_exports__);
             coords.left = x;
           }
 
-          cur = findPosV(this$1, coords, dir, unit);
+          cur = findPosV(this, coords, dir, unit);
 
           if (cur.hitSide) {
             break;
@@ -13775,21 +13499,21 @@ __webpack_require__.r(__webpack_exports__);
         var doc = this.doc,
             goals = [];
         var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
-        doc.extendSelectionsBy(function (range$$1) {
+        doc.extendSelectionsBy(function (range) {
           if (collapse) {
-            return dir < 0 ? range$$1.from() : range$$1.to();
+            return dir < 0 ? range.from() : range.to();
           }
 
-          var headPos = cursorCoords(this$1, range$$1.head, "div");
+          var headPos = cursorCoords(this$1, range.head, "div");
 
-          if (range$$1.goalColumn != null) {
-            headPos.left = range$$1.goalColumn;
+          if (range.goalColumn != null) {
+            headPos.left = range.goalColumn;
           }
 
           goals.push(headPos.left);
           var pos = findPosV(this$1, headPos, dir, unit);
 
-          if (unit == "page" && range$$1 == doc.sel.primary()) {
+          if (unit == "page" && range == doc.sel.primary()) {
             addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top);
           }
 
@@ -13871,9 +13595,9 @@ __webpack_require__.r(__webpack_exports__);
           clientWidth: displayWidth(this)
         };
       },
-      scrollIntoView: methodOp(function (range$$1, margin) {
-        if (range$$1 == null) {
-          range$$1 = {
+      scrollIntoView: methodOp(function (range, margin) {
+        if (range == null) {
+          range = {
             from: this.doc.sel.primary().head,
             to: null
           };
@@ -13881,28 +13605,28 @@ __webpack_require__.r(__webpack_exports__);
           if (margin == null) {
             margin = this.options.cursorScrollMargin;
           }
-        } else if (typeof range$$1 == "number") {
-          range$$1 = {
-            from: Pos(range$$1, 0),
+        } else if (typeof range == "number") {
+          range = {
+            from: Pos(range, 0),
             to: null
           };
-        } else if (range$$1.from == null) {
-          range$$1 = {
-            from: range$$1,
+        } else if (range.from == null) {
+          range = {
+            from: range,
             to: null
           };
         }
 
-        if (!range$$1.to) {
-          range$$1.to = range$$1.from;
+        if (!range.to) {
+          range.to = range.from;
         }
 
-        range$$1.margin = margin || 0;
+        range.margin = margin || 0;
 
-        if (range$$1.from.line != null) {
-          scrollToRange(this, range$$1);
+        if (range.from.line != null) {
+          scrollToRange(this, range);
         } else {
-          scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin);
+          scrollToCoordsRange(this, range.from, range.to, range.margin);
         }
       }),
       setSize: methodOp(function (width, height) {
@@ -13924,18 +13648,18 @@ __webpack_require__.r(__webpack_exports__);
           clearLineMeasurementCache(this);
         }
 
-        var lineNo$$1 = this.display.viewFrom;
-        this.doc.iter(lineNo$$1, this.display.viewTo, function (line) {
+        var lineNo = this.display.viewFrom;
+        this.doc.iter(lineNo, this.display.viewTo, function (line) {
           if (line.widgets) {
             for (var i = 0; i < line.widgets.length; i++) {
               if (line.widgets[i].noHScroll) {
-                regLineChange(this$1, lineNo$$1, "widget");
+                regLineChange(this$1, lineNo, "widget");
                 break;
               }
             }
           }
 
-          ++lineNo$$1;
+          ++lineNo;
         });
         this.curOp.forceUpdate = true;
         signal(this, "refresh", this);
@@ -14031,9 +13755,10 @@ __webpack_require__.r(__webpack_exports__);
     var oldPos = pos;
     var origDir = dir;
     var lineObj = getLine(doc, pos.line);
+    var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
 
     function findNextLine() {
-      var l = pos.line + dir;
+      var l = pos.line + lineDir;
 
       if (l < doc.first || l >= doc.first + doc.size) {
         return false;
@@ -14054,7 +13779,7 @@ __webpack_require__.r(__webpack_exports__);
 
       if (next == null) {
         if (!boundToLine && findNextLine()) {
-          pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir);
+          pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir);
         } else {
           return false;
         }
@@ -14325,10 +14050,10 @@ __webpack_require__.r(__webpack_exports__);
 
     if (!end) {
       var measure = view[view.length - 1].measure;
-      var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
+      var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
       end = {
-        node: map$$1[map$$1.length - 1],
-        offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]
+        node: map[map.length - 1],
+        offset: map[map.length - 2] - map[map.length - 3]
       };
     }
 
@@ -14759,13 +14484,13 @@ __webpack_require__.r(__webpack_exports__);
         }
 
         var markerID = node.getAttribute("cm-marker"),
-            range$$1;
+            range;
 
         if (markerID) {
           var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
 
-          if (found.length && (range$$1 = found[0].find(0))) {
-            addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep));
+          if (found.length && (range = found[0].find(0))) {
+            addText(getBetween(cm.doc, range.from, range.to).join(lineSep));
           }
 
           return;
@@ -14887,17 +14612,17 @@ __webpack_require__.r(__webpack_exports__);
 
     function find(textNode, topNode, offset) {
       for (var i = -1; i < (maps ? maps.length : 0); i++) {
-        var map$$1 = i < 0 ? measure.map : maps[i];
+        var map = i < 0 ? measure.map : maps[i];
 
-        for (var j = 0; j < map$$1.length; j += 3) {
-          var curNode = map$$1[j + 2];
+        for (var j = 0; j < map.length; j += 3) {
+          var curNode = map[j + 2];
 
           if (curNode == textNode || curNode == topNode) {
             var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
-            var ch = map$$1[j] + offset;
+            var ch = map[j] + offset;
 
             if (offset < 0 || curNode != textNode) {
-              ch = map$$1[j + (offset ? 1 : 0)];
+              ch = map[j + (offset ? 1 : 0)];
             }
 
             return Pos(line, ch);
@@ -15593,155 +15318,12 @@ __webpack_require__.r(__webpack_exports__);
 
   CodeMirror.fromTextArea = fromTextArea;
   addLegacyProps(CodeMirror);
-  CodeMirror.version = "5.49.2";
+  CodeMirror.version = "5.52.0";
   return CodeMirror;
 });
 
 /***/ }),
 
-/***/ "./node_modules/codemirror/mode/gfm/gfm.js":
-/*!*************************************************!*\
-  !*** ./node_modules/codemirror/mode/gfm/gfm.js ***!
-  \*************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: https://codemirror.net/LICENSE
-(function (mod) {
-  if (true) // CommonJS
-    mod(__webpack_require__(/*! ../../lib/codemirror */ "./node_modules/codemirror/lib/codemirror.js"), __webpack_require__(/*! ../markdown/markdown */ "./node_modules/codemirror/mode/markdown/markdown.js"), __webpack_require__(/*! ../../addon/mode/overlay */ "./node_modules/codemirror/addon/mode/overlay.js"));else {}
-})(function (CodeMirror) {
-  "use strict";
-
-  var urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\.beep|\.lwz|\.xpc|\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\.beeps?|xmpp|xri|ymsgr|z39\.50[rs]?):(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]|\([^\s()<>]*\))+(?:\([^\s()<>]*\)|[^\s`*!()\[\]{};:'".,<>?«»“”‘’]))/i;
-  CodeMirror.defineMode("gfm", function (config, modeConfig) {
-    var codeDepth = 0;
-
-    function blankLine(state) {
-      state.code = false;
-      return null;
-    }
-
-    var gfmOverlay = {
-      startState: function () {
-        return {
-          code: false,
-          codeBlock: false,
-          ateSpace: false
-        };
-      },
-      copyState: function (s) {
-        return {
-          code: s.code,
-          codeBlock: s.codeBlock,
-          ateSpace: s.ateSpace
-        };
-      },
-      token: function (stream, state) {
-        state.combineTokens = null; // Hack to prevent formatting override inside code blocks (block and inline)
-
-        if (state.codeBlock) {
-          if (stream.match(/^```+/)) {
-            state.codeBlock = false;
-            return null;
-          }
-
-          stream.skipToEnd();
-          return null;
-        }
-
-        if (stream.sol()) {
-          state.code = false;
-        }
-
-        if (stream.sol() && stream.match(/^```+/)) {
-          stream.skipToEnd();
-          state.codeBlock = true;
-          return null;
-        } // If this block is changed, it may need to be updated in Markdown mode
-
-
-        if (stream.peek() === '`') {
-          stream.next();
-          var before = stream.pos;
-          stream.eatWhile('`');
-          var difference = 1 + stream.pos - before;
-
-          if (!state.code) {
-            codeDepth = difference;
-            state.code = true;
-          } else {
-            if (difference === codeDepth) {
-              // Must be exact
-              state.code = false;
-            }
-          }
-
-          return null;
-        } else if (state.code) {
-          stream.next();
-          return null;
-        } // Check if space. If so, links can be formatted later on
-
-
-        if (stream.eatSpace()) {
-          state.ateSpace = true;
-          return null;
-        }
-
-        if (stream.sol() || state.ateSpace) {
-          state.ateSpace = false;
-
-          if (modeConfig.gitHubSpice !== false) {
-            if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?=.{0,6}\d)(?:[a-f0-9]{7,40}\b)/)) {
-              // User/Project@SHA
-              // User@SHA
-              // SHA
-              state.combineTokens = true;
-              return "link";
-            } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) {
-              // User/Project#Num
-              // User#Num
-              // #Num
-              state.combineTokens = true;
-              return "link";
-            }
-          }
-        }
-
-        if (stream.match(urlRE) && stream.string.slice(stream.start - 2, stream.start) != "](" && (stream.start == 0 || /\W/.test(stream.string.charAt(stream.start - 1)))) {
-          // URLs
-          // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
-          // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine
-          // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL
-          state.combineTokens = true;
-          return "link";
-        }
-
-        stream.next();
-        return null;
-      },
-      blankLine: blankLine
-    };
-    var markdownConfig = {
-      taskLists: true,
-      strikethrough: true,
-      emoji: true
-    };
-
-    for (var attr in modeConfig) {
-      markdownConfig[attr] = modeConfig[attr];
-    }
-
-    markdownConfig.name = "markdown";
-    return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);
-  }, "markdown");
-  CodeMirror.defineMIME("text/x-gfm", "gfm");
-});
-
-/***/ }),
-
 /***/ "./node_modules/codemirror/mode/markdown/markdown.js":
 /*!***********************************************************!*\
   !*** ./node_modules/codemirror/mode/markdown/markdown.js ***!
@@ -17494,6 +17076,8 @@ __webpack_require__.r(__webpack_exports__);
   };
 
   CodeMirror.findModeByExtension = function (ext) {
+    ext = ext.toLowerCase();
+
     for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
       var info = CodeMirror.modeInfo[i];
       if (info.ext) for (var j = 0; j < info.ext.length; j++) if (info.ext[j] == ext) return info;
@@ -18249,980 +17833,741 @@ module.exports = {
 
 /***/ }),
 
-/***/ "./node_modules/marked/lib/marked.js":
-/*!*******************************************!*\
-  !*** ./node_modules/marked/lib/marked.js ***!
-  \*******************************************/
+/***/ "./node_modules/marked/src/InlineLexer.js":
+/*!************************************************!*\
+  !*** ./node_modules/marked/src/InlineLexer.js ***!
+  \************************************************/
 /*! no static exports found */
 /***/ (function(module, exports, __webpack_require__) {
 
-/* WEBPACK VAR INJECTION */(function(global) {/**
- * marked - a markdown parser
- * Copyright (c) 2011-2018, Christopher Jeffrey. (MIT Licensed)
- * https://github.com/markedjs/marked
- */
-;
+const Renderer = __webpack_require__(/*! ./Renderer.js */ "./node_modules/marked/src/Renderer.js");
 
-(function (root) {
-  'use strict';
-  /**
-   * Block-Level Grammar
-   */
+const {
+  defaults
+} = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
 
-  var block = {
-    newline: /^\n+/,
-    code: /^( {4}[^\n]+\n*)+/,
-    fences: /^ {0,3}(`{3,}|~{3,})([^`~\n]*)\n(?:|([\s\S]*?)\n)(?: {0,3}\1[~`]* *(?:\n+|$)|$)/,
-    hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
-    heading: /^ {0,3}(#{1,6}) +([^\n]*?)(?: +#+)? *(?:\n+|$)/,
-    blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
-    list: /^( {0,3})(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
-    html: '^ {0,3}(?:' // optional indentation
-    + '<(script|pre|style)[\\s>][\\s\\S]*?(?:</\\1>[^\\n]*\\n+|$)' // (1)
-    + '|comment[^\\n]*(\\n+|$)' // (2)
-    + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
-    + '|<![A-Z][\\s\\S]*?>\\n*' // (4)
-    + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5)
-    + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
-    + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
-    + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
-    + ')',
-    def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
-    nptable: noop,
-    table: noop,
-    lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
-    // regex template, placeholders will be replaced according to different paragraph
-    // interruption rules of commonmark and the original markdown spec:
-    _paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\n]+)*)/,
-    text: /^[^\n]+/
-  };
-  block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/;
-  block._title = /(?:"(?:\\"?|[^"\\])*"|'[^'\n]*(?:\n[^'\n]+)*\n?'|\([^()]*\))/;
-  block.def = edit(block.def).replace('label', block._label).replace('title', block._title).getRegex();
-  block.bullet = /(?:[*+-]|\d{1,9}\.)/;
-  block.item = /^( *)(bull) ?[^\n]*(?:\n(?!\1bull ?)[^\n]*)*/;
-  block.item = edit(block.item, 'gm').replace(/bull/g, block.bullet).getRegex();
-  block.list = edit(block.list).replace(/bull/g, block.bullet).replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))').replace('def', '\\n+(?=' + block.def.source + ')').getRegex();
-  block._tag = 'address|article|aside|base|basefont|blockquote|body|caption' + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption' + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe' + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option' + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr' + '|track|ul';
-  block._comment = /<!--(?!-?>)[\s\S]*?-->/;
-  block.html = edit(block.html, 'i').replace('comment', block._comment).replace('tag', block._tag).replace('attribute', / +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/).getRegex();
-  block.paragraph = edit(block._paragraph).replace('hr', block.hr).replace('heading', ' {0,3}#{1,6} +').replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs
-  .replace('blockquote', ' {0,3}>').replace('fences', ' {0,3}(?:`{3,}|~{3,})[^`\\n]*\\n').replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
-  .replace('html', '</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|!--)').replace('tag', block._tag) // pars can be interrupted by type (6) html blocks
-  .getRegex();
-  block.blockquote = edit(block.blockquote).replace('paragraph', block.paragraph).getRegex();
-  /**
-   * Normal Block Grammar
-   */
+const {
+  inline
+} = __webpack_require__(/*! ./rules.js */ "./node_modules/marked/src/rules.js");
 
-  block.normal = merge({}, block);
-  /**
-   * GFM Block Grammar
-   */
+const {
+  findClosingBracket,
+  escape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
+/**
+ * Inline Lexer & Compiler
+ */
 
-  block.gfm = merge({}, block.normal, {
-    nptable: /^ *([^|\n ].*\|.*)\n *([-:]+ *\|[-| :]*)(?:\n((?:.*[^>\n ].*(?:\n|$))*)\n*|$)/,
-    table: /^ *\|(.+)\n *\|?( *[-:]+[-| :]*)(?:\n((?: *[^>\n ].*(?:\n|$))*)\n*|$)/
-  });
-  /**
-   * Pedantic grammar (original John Gruber's loose markdown specification)
-   */
 
-  block.pedantic = merge({}, block.normal, {
-    html: edit('^ *(?:comment *(?:\\n|\\s*$)' + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag
-    + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))').replace('comment', block._comment).replace(/tag/g, '(?!(?:' + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub' + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)' + '\\b)\\w+(?!:|[^\\w\\s@]*@)\\b').getRegex(),
-    def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/,
-    heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/,
-    fences: noop,
-    // fences not supported
-    paragraph: edit(block.normal._paragraph).replace('hr', block.hr).replace('heading', ' *#{1,6} *[^\n]').replace('lheading', block.lheading).replace('blockquote', ' {0,3}>').replace('|fences', '').replace('|list', '').replace('|html', '').getRegex()
-  });
-  /**
-   * Block Lexer
-   */
+module.exports = class InlineLexer {
+  constructor(links, options) {
+    this.options = options || defaults;
+    this.links = links;
+    this.rules = inline.normal;
+    this.options.renderer = this.options.renderer || new Renderer();
+    this.renderer = this.options.renderer;
+    this.renderer.options = this.options;
 
-  function Lexer(options) {
-    this.tokens = [];
-    this.tokens.links = Object.create(null);
-    this.options = options || marked.defaults;
-    this.rules = block.normal;
+    if (!this.links) {
+      throw new Error('Tokens array requires a `links` property.');
+    }
 
     if (this.options.pedantic) {
-      this.rules = block.pedantic;
+      this.rules = inline.pedantic;
     } else if (this.options.gfm) {
-      this.rules = block.gfm;
+      if (this.options.breaks) {
+        this.rules = inline.breaks;
+      } else {
+        this.rules = inline.gfm;
+      }
     }
   }
   /**
-   * Expose Block Rules
+   * Expose Inline Rules
    */
 
 
-  Lexer.rules = block;
-  /**
-   * Static Lex Method
-   */
-
-  Lexer.lex = function (src, options) {
-    var lexer = new Lexer(options);
-    return lexer.lex(src);
-  };
+  static get rules() {
+    return inline;
+  }
   /**
-   * Preprocessing
+   * Static Lexing/Compiling Method
    */
 
 
-  Lexer.prototype.lex = function (src) {
-    src = src.replace(/\r\n|\r/g, '\n').replace(/\t/g, '    ').replace(/\u00a0/g, ' ').replace(/\u2424/g, '\n');
-    return this.token(src, true);
-  };
+  static output(src, links, options) {
+    const inline = new InlineLexer(links, options);
+    return inline.output(src);
+  }
   /**
-   * Lexing
+   * Lexing/Compiling
    */
 
 
-  Lexer.prototype.token = function (src, top) {
-    src = src.replace(/^ +$/gm, '');
-    var next, loose, cap, bull, b, item, listStart, listItems, t, space, i, tag, l, isordered, istask, ischecked;
+  output(src) {
+    let out = '',
+        link,
+        text,
+        href,
+        title,
+        cap,
+        prevCapZero;
 
     while (src) {
-      // newline
-      if (cap = this.rules.newline.exec(src)) {
+      // escape
+      if (cap = this.rules.escape.exec(src)) {
         src = src.substring(cap[0].length);
-
-        if (cap[0].length > 1) {
-          this.tokens.push({
-            type: 'space'
-          });
-        }
-      } // code
+        out += escape(cap[1]);
+        continue;
+      } // tag
 
 
-      if (cap = this.rules.code.exec(src)) {
-        var lastToken = this.tokens[this.tokens.length - 1];
-        src = src.substring(cap[0].length); // An indented code block cannot interrupt a paragraph.
+      if (cap = this.rules.tag.exec(src)) {
+        if (!this.inLink && /^<a /i.test(cap[0])) {
+          this.inLink = true;
+        } else if (this.inLink && /^<\/a>/i.test(cap[0])) {
+          this.inLink = false;
+        }
 
-        if (lastToken && lastToken.type === 'paragraph') {
-          lastToken.text += '\n' + cap[0].trimRight();
-        } else {
-          cap = cap[0].replace(/^ {4}/gm, '');
-          this.tokens.push({
-            type: 'code',
-            codeBlockStyle: 'indented',
-            text: !this.options.pedantic ? rtrim(cap, '\n') : cap
-          });
+        if (!this.inRawBlock && /^<(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
+          this.inRawBlock = true;
+        } else if (this.inRawBlock && /^<\/(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
+          this.inRawBlock = false;
         }
 
+        src = src.substring(cap[0].length);
+        out += this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0]) : cap[0];
         continue;
-      } // fences
+      } // link
 
 
-      if (cap = this.rules.fences.exec(src)) {
-        src = src.substring(cap[0].length);
-        this.tokens.push({
-          type: 'code',
-          lang: cap[2] ? cap[2].trim() : cap[2],
-          text: cap[3] || ''
-        });
-        continue;
-      } // heading
+      if (cap = this.rules.link.exec(src)) {
+        const lastParenIndex = findClosingBracket(cap[2], '()');
 
+        if (lastParenIndex > -1) {
+          const start = cap[0].indexOf('!') === 0 ? 5 : 4;
+          const linkLen = start + cap[1].length + lastParenIndex;
+          cap[2] = cap[2].substring(0, lastParenIndex);
+          cap[0] = cap[0].substring(0, linkLen).trim();
+          cap[3] = '';
+        }
 
-      if (cap = this.rules.heading.exec(src)) {
         src = src.substring(cap[0].length);
-        this.tokens.push({
-          type: 'heading',
-          depth: cap[1].length,
-          text: cap[2]
+        this.inLink = true;
+        href = cap[2];
+
+        if (this.options.pedantic) {
+          link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href);
+
+          if (link) {
+            href = link[1];
+            title = link[3];
+          } else {
+            title = '';
+          }
+        } else {
+          title = cap[3] ? cap[3].slice(1, -1) : '';
+        }
+
+        href = href.trim().replace(/^<([\s\S]*)>$/, '$1');
+        out += this.outputLink(cap, {
+          href: InlineLexer.escapes(href),
+          title: InlineLexer.escapes(title)
         });
+        this.inLink = false;
         continue;
-      } // table no leading pipe (gfm)
+      } // reflink, nolink
 
 
-      if (cap = this.rules.nptable.exec(src)) {
-        item = {
-          type: 'table',
-          header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
-          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
-          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
-        };
-
-        if (item.header.length === item.align.length) {
-          src = src.substring(cap[0].length);
-
-          for (i = 0; i < item.align.length; i++) {
-            if (/^ *-+: *$/.test(item.align[i])) {
-              item.align[i] = 'right';
-            } else if (/^ *:-+: *$/.test(item.align[i])) {
-              item.align[i] = 'center';
-            } else if (/^ *:-+ *$/.test(item.align[i])) {
-              item.align[i] = 'left';
-            } else {
-              item.align[i] = null;
-            }
-          }
-
-          for (i = 0; i < item.cells.length; i++) {
-            item.cells[i] = splitCells(item.cells[i], item.header.length);
-          }
+      if ((cap = this.rules.reflink.exec(src)) || (cap = this.rules.nolink.exec(src))) {
+        src = src.substring(cap[0].length);
+        link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
+        link = this.links[link.toLowerCase()];
 
-          this.tokens.push(item);
+        if (!link || !link.href) {
+          out += cap[0].charAt(0);
+          src = cap[0].substring(1) + src;
           continue;
         }
-      } // hr
-
 
-      if (cap = this.rules.hr.exec(src)) {
-        src = src.substring(cap[0].length);
-        this.tokens.push({
-          type: 'hr'
-        });
+        this.inLink = true;
+        out += this.outputLink(cap, link);
+        this.inLink = false;
         continue;
-      } // blockquote
+      } // strong
 
 
-      if (cap = this.rules.blockquote.exec(src)) {
+      if (cap = this.rules.strong.exec(src)) {
         src = src.substring(cap[0].length);
-        this.tokens.push({
-          type: 'blockquote_start'
-        });
-        cap = cap[0].replace(/^ *> ?/gm, ''); // Pass `top` to keep the current
-        // "toplevel" state. This is exactly
-        // how markdown.pl works.
-
-        this.token(cap, top);
-        this.tokens.push({
-          type: 'blockquote_end'
-        });
+        out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));
         continue;
-      } // list
+      } // em
 
 
-      if (cap = this.rules.list.exec(src)) {
+      if (cap = this.rules.em.exec(src)) {
         src = src.substring(cap[0].length);
-        bull = cap[2];
-        isordered = bull.length > 1;
-        listStart = {
-          type: 'list_start',
-          ordered: isordered,
-          start: isordered ? +bull : '',
-          loose: false
-        };
-        this.tokens.push(listStart); // Get each top-level item.
-
-        cap = cap[0].match(this.rules.item);
-        listItems = [];
-        next = false;
-        l = cap.length;
-        i = 0;
-
-        for (; i < l; i++) {
-          item = cap[i]; // Remove the list item's bullet
-          // so it is seen as the next token.
-
-          space = item.length;
-          item = item.replace(/^ *([*+-]|\d+\.) */, ''); // Outdent whatever the
-          // list item contains. Hacky.
-
-          if (~item.indexOf('\n ')) {
-            space -= item.length;
-            item = !this.options.pedantic ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '') : item.replace(/^ {1,4}/gm, '');
-          } // Determine whether the next list item belongs here.
-          // Backpedal if it does not belong in this list.
+        out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));
+        continue;
+      } // code
 
 
-          if (i !== l - 1) {
-            b = block.bullet.exec(cap[i + 1])[0];
+      if (cap = this.rules.code.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += this.renderer.codespan(escape(cap[2].trim(), true));
+        continue;
+      } // br
 
-            if (bull.length > 1 ? b.length === 1 : b.length > 1 || this.options.smartLists && b !== bull) {
-              src = cap.slice(i + 1).join('\n') + src;
-              i = l - 1;
-            }
-          } // Determine whether item is loose or not.
-          // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
-          // for discount behavior.
 
+      if (cap = this.rules.br.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += this.renderer.br();
+        continue;
+      } // del (gfm)
 
-          loose = next || /\n\n(?!\s*$)/.test(item);
 
-          if (i !== l - 1) {
-            next = item.charAt(item.length - 1) === '\n';
-            if (!loose) loose = next;
-          }
+      if (cap = this.rules.del.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += this.renderer.del(this.output(cap[1]));
+        continue;
+      } // autolink
 
-          if (loose) {
-            listStart.loose = true;
-          } // Check for task list items
 
+      if (cap = this.rules.autolink.exec(src)) {
+        src = src.substring(cap[0].length);
 
-          istask = /^\[[ xX]\] /.test(item);
-          ischecked = undefined;
+        if (cap[2] === '@') {
+          text = escape(this.mangle(cap[1]));
+          href = 'mailto:' + text;
+        } else {
+          text = escape(cap[1]);
+          href = text;
+        }
 
-          if (istask) {
-            ischecked = item[1] !== ' ';
-            item = item.replace(/^\[[ xX]\] +/, '');
-          }
+        out += this.renderer.link(href, null, text);
+        continue;
+      } // url (gfm)
 
-          t = {
-            type: 'list_item_start',
-            task: istask,
-            checked: ischecked,
-            loose: loose
-          };
-          listItems.push(t);
-          this.tokens.push(t); // Recurse.
 
-          this.token(item, false);
-          this.tokens.push({
-            type: 'list_item_end'
-          });
-        }
+      if (!this.inLink && (cap = this.rules.url.exec(src))) {
+        if (cap[2] === '@') {
+          text = escape(cap[0]);
+          href = 'mailto:' + text;
+        } else {
+          // do extended autolink path validation
+          do {
+            prevCapZero = cap[0];
+            cap[0] = this.rules._backpedal.exec(cap[0])[0];
+          } while (prevCapZero !== cap[0]);
 
-        if (listStart.loose) {
-          l = listItems.length;
-          i = 0;
+          text = escape(cap[0]);
 
-          for (; i < l; i++) {
-            listItems[i].loose = true;
+          if (cap[1] === 'www.') {
+            href = 'http://' + text;
+          } else {
+            href = text;
           }
         }
 
-        this.tokens.push({
-          type: 'list_end'
-        });
-        continue;
-      } // html
-
-
-      if (cap = this.rules.html.exec(src)) {
         src = src.substring(cap[0].length);
-        this.tokens.push({
-          type: this.options.sanitize ? 'paragraph' : 'html',
-          pre: !this.options.sanitizer && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
-          text: this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0]) : cap[0]
-        });
+        out += this.renderer.link(href, null, text);
         continue;
-      } // def
+      } // text
 
 
-      if (top && (cap = this.rules.def.exec(src))) {
+      if (cap = this.rules.text.exec(src)) {
         src = src.substring(cap[0].length);
-        if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);
-        tag = cap[1].toLowerCase().replace(/\s+/g, ' ');
 
-        if (!this.tokens.links[tag]) {
-          this.tokens.links[tag] = {
-            href: cap[2],
-            title: cap[3]
-          };
+        if (this.inRawBlock) {
+          out += this.renderer.text(this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0]) : cap[0]);
+        } else {
+          out += this.renderer.text(escape(this.smartypants(cap[0])));
         }
 
         continue;
-      } // table (gfm)
-
+      }
 
-      if (cap = this.rules.table.exec(src)) {
-        item = {
-          type: 'table',
-          header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
-          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
-          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
-        };
+      if (src) {
+        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
+      }
+    }
 
-        if (item.header.length === item.align.length) {
-          src = src.substring(cap[0].length);
+    return out;
+  }
 
-          for (i = 0; i < item.align.length; i++) {
-            if (/^ *-+: *$/.test(item.align[i])) {
-              item.align[i] = 'right';
-            } else if (/^ *:-+: *$/.test(item.align[i])) {
-              item.align[i] = 'center';
-            } else if (/^ *:-+ *$/.test(item.align[i])) {
-              item.align[i] = 'left';
-            } else {
-              item.align[i] = null;
-            }
-          }
+  static escapes(text) {
+    return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;
+  }
+  /**
+   * Compile Link
+   */
 
-          for (i = 0; i < item.cells.length; i++) {
-            item.cells[i] = splitCells(item.cells[i].replace(/^ *\| *| *\| *$/g, ''), item.header.length);
-          }
 
-          this.tokens.push(item);
-          continue;
-        }
-      } // lheading
+  outputLink(cap, link) {
+    const href = link.href,
+          title = link.title ? escape(link.title) : null;
+    return cap[0].charAt(0) !== '!' ? this.renderer.link(href, title, this.output(cap[1])) : this.renderer.image(href, title, escape(cap[1]));
+  }
+  /**
+   * Smartypants Transformations
+   */
 
 
-      if (cap = this.rules.lheading.exec(src)) {
-        src = src.substring(cap[0].length);
-        this.tokens.push({
-          type: 'heading',
-          depth: cap[2].charAt(0) === '=' ? 1 : 2,
-          text: cap[1]
-        });
-        continue;
-      } // top-level paragraph
+  smartypants(text) {
+    if (!this.options.smartypants) return text;
+    return text // em-dashes
+    .replace(/---/g, '\u2014') // en-dashes
+    .replace(/--/g, '\u2013') // opening singles
+    .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018') // closing singles & apostrophes
+    .replace(/'/g, '\u2019') // opening doubles
+    .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c') // closing doubles
+    .replace(/"/g, '\u201d') // ellipses
+    .replace(/\.{3}/g, '\u2026');
+  }
+  /**
+   * Mangle Links
+   */
 
 
-      if (top && (cap = this.rules.paragraph.exec(src))) {
-        src = src.substring(cap[0].length);
-        this.tokens.push({
-          type: 'paragraph',
-          text: cap[1].charAt(cap[1].length - 1) === '\n' ? cap[1].slice(0, -1) : cap[1]
-        });
-        continue;
-      } // text
+  mangle(text) {
+    if (!this.options.mangle) return text;
+    const l = text.length;
+    let out = '',
+        i = 0,
+        ch;
 
+    for (; i < l; i++) {
+      ch = text.charCodeAt(i);
 
-      if (cap = this.rules.text.exec(src)) {
-        // Top-level should never reach here.
-        src = src.substring(cap[0].length);
-        this.tokens.push({
-          type: 'text',
-          text: cap[0]
-        });
-        continue;
+      if (Math.random() > 0.5) {
+        ch = 'x' + ch.toString(16);
       }
 
-      if (src) {
-        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
-      }
+      out += '&#' + ch + ';';
     }
 
-    return this.tokens;
-  };
-  /**
-   * Inline-Level Grammar
-   */
-
-
-  var inline = {
-    escape: /^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/,
-    autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
-    url: noop,
-    tag: '^comment' + '|^</[a-zA-Z][\\w:-]*\\s*>' // self-closing tag
-    + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag
-    + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. <?php ?>
-    + '|^<![a-zA-Z]+\\s[\\s\\S]*?>' // declaration, e.g. <!DOCTYPE html>
-    + '|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>',
-    // CDATA section
-    link: /^!?\[(label)\]\(\s*(href)(?:\s+(title))?\s*\)/,
-    reflink: /^!?\[(label)\]\[(?!\s*\])((?:\\[\[\]]?|[^\[\]\\])+)\]/,
-    nolink: /^!?\[(?!\s*\])((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\](?:\[\])?/,
-    strong: /^__([^\s_])__(?!_)|^\*\*([^\s*])\*\*(?!\*)|^__([^\s][\s\S]*?[^\s])__(?!_)|^\*\*([^\s][\s\S]*?[^\s])\*\*(?!\*)/,
-    em: /^_([^\s_])_(?!_)|^\*([^\s*<\[])\*(?!\*)|^_([^\s<][\s\S]*?[^\s_])_(?!_|[^\spunctuation])|^_([^\s_<][\s\S]*?[^\s])_(?!_|[^\spunctuation])|^\*([^\s<"][\s\S]*?[^\s\*])\*(?!\*|[^\spunctuation])|^\*([^\s*"<\[][\s\S]*?[^\s])\*(?!\*)/,
-    code: /^(`+)([^`]|[^`][\s\S]*?[^`])\1(?!`)/,
-    br: /^( {2,}|\\)\n(?!\s*$)/,
-    del: noop,
-    text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*]|\b_|$)|[^ ](?= {2,}\n))|(?= {2,}\n))/
-  }; // list of punctuation marks from common mark spec
-  // without ` and ] to workaround Rule 17 (inline code blocks/links)
-
-  inline._punctuation = '!"#$%&\'()*+,\\-./:;<=>?@\\[^_{|}~';
-  inline.em = edit(inline.em).replace(/punctuation/g, inline._punctuation).getRegex();
-  inline._escapes = /\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g;
-  inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
-  inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;
-  inline.autolink = edit(inline.autolink).replace('scheme', inline._scheme).replace('email', inline._email).getRegex();
-  inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
-  inline.tag = edit(inline.tag).replace('comment', block._comment).replace('attribute', inline._attribute).getRegex();
-  inline._label = /(?:\[[^\[\]]*\]|\\.|`[^`]*`|[^\[\]\\`])*?/;
-  inline._href = /<(?:\\[<>]?|[^\s<>\\])*>|[^\s\x00-\x1f]*/;
-  inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;
-  inline.link = edit(inline.link).replace('label', inline._label).replace('href', inline._href).replace('title', inline._title).getRegex();
-  inline.reflink = edit(inline.reflink).replace('label', inline._label).getRegex();
-  /**
-   * Normal Inline Grammar
-   */
+    return out;
+  }
 
-  inline.normal = merge({}, inline);
-  /**
-   * Pedantic Inline Grammar
-   */
+};
 
-  inline.pedantic = merge({}, inline.normal, {
-    strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
-    em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/,
-    link: edit(/^!?\[(label)\]\((.*?)\)/).replace('label', inline._label).getRegex(),
-    reflink: edit(/^!?\[(label)\]\s*\[([^\]]*)\]/).replace('label', inline._label).getRegex()
-  });
-  /**
-   * GFM Inline Grammar
-   */
+/***/ }),
 
-  inline.gfm = merge({}, inline.normal, {
-    escape: edit(inline.escape).replace('])', '~|])').getRegex(),
-    _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,
-    url: /^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,
-    _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
-    del: /^~+(?=\S)([\s\S]*?\S)~+/,
-    text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*~]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))|(?= {2,}\n|[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))/
-  });
-  inline.gfm.url = edit(inline.gfm.url, 'i').replace('email', inline.gfm._extended_email).getRegex();
-  /**
-   * GFM + Line Breaks Inline Grammar
-   */
+/***/ "./node_modules/marked/src/Lexer.js":
+/*!******************************************!*\
+  !*** ./node_modules/marked/src/Lexer.js ***!
+  \******************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
 
-  inline.breaks = merge({}, inline.gfm, {
-    br: edit(inline.br).replace('{2,}', '*').getRegex(),
-    text: edit(inline.gfm.text).replace('\\b_', '\\b_| {2,}\\n').replace(/\{2,\}/g, '*').getRegex()
-  });
-  /**
-   * Inline Lexer & Compiler
-   */
+const {
+  defaults
+} = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
+
+const {
+  block
+} = __webpack_require__(/*! ./rules.js */ "./node_modules/marked/src/rules.js");
+
+const {
+  rtrim,
+  splitCells,
+  escape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
+/**
+ * Block Lexer
+ */
 
-  function InlineLexer(links, options) {
-    this.options = options || marked.defaults;
-    this.links = links;
-    this.rules = inline.normal;
-    this.renderer = this.options.renderer || new Renderer();
-    this.renderer.options = this.options;
 
-    if (!this.links) {
-      throw new Error('Tokens array requires a `links` property.');
-    }
+module.exports = class Lexer {
+  constructor(options) {
+    this.tokens = [];
+    this.tokens.links = Object.create(null);
+    this.options = options || defaults;
+    this.rules = block.normal;
 
     if (this.options.pedantic) {
-      this.rules = inline.pedantic;
+      this.rules = block.pedantic;
     } else if (this.options.gfm) {
-      if (this.options.breaks) {
-        this.rules = inline.breaks;
-      } else {
-        this.rules = inline.gfm;
-      }
+      this.rules = block.gfm;
     }
   }
   /**
-   * Expose Inline Rules
+   * Expose Block Rules
    */
 
 
-  InlineLexer.rules = inline;
+  static get rules() {
+    return block;
+  }
   /**
-   * Static Lexing/Compiling Method
+   * Static Lex Method
    */
 
-  InlineLexer.output = function (src, links, options) {
-    var inline = new InlineLexer(links, options);
-    return inline.output(src);
-  };
+
+  static lex(src, options) {
+    const lexer = new Lexer(options);
+    return lexer.lex(src);
+  }
+
   /**
-   * Lexing/Compiling
+   * Preprocessing
    */
+  lex(src) {
+    src = src.replace(/\r\n|\r/g, '\n').replace(/\t/g, '    ');
+    return this.token(src, true);
+  }
 
-
-  InlineLexer.prototype.output = function (src) {
-    var out = '',
-        link,
-        text,
-        href,
-        title,
-        cap,
-        prevCapZero;
+  /**
+   * Lexing
+   */
+  token(src, top) {
+    src = src.replace(/^ +$/gm, '');
+    let next, loose, cap, bull, b, item, listStart, listItems, t, space, i, tag, l, isordered, istask, ischecked;
 
     while (src) {
-      // escape
-      if (cap = this.rules.escape.exec(src)) {
+      // newline
+      if (cap = this.rules.newline.exec(src)) {
         src = src.substring(cap[0].length);
-        out += escape(cap[1]);
-        continue;
-      } // tag
-
 
-      if (cap = this.rules.tag.exec(src)) {
-        if (!this.inLink && /^<a /i.test(cap[0])) {
-          this.inLink = true;
-        } else if (this.inLink && /^<\/a>/i.test(cap[0])) {
-          this.inLink = false;
+        if (cap[0].length > 1) {
+          this.tokens.push({
+            type: 'space'
+          });
         }
+      } // code
 
-        if (!this.inRawBlock && /^<(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
-          this.inRawBlock = true;
-        } else if (this.inRawBlock && /^<\/(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
-          this.inRawBlock = false;
+
+      if (cap = this.rules.code.exec(src)) {
+        const lastToken = this.tokens[this.tokens.length - 1];
+        src = src.substring(cap[0].length); // An indented code block cannot interrupt a paragraph.
+
+        if (lastToken && lastToken.type === 'paragraph') {
+          lastToken.text += '\n' + cap[0].trimRight();
+        } else {
+          cap = cap[0].replace(/^ {4}/gm, '');
+          this.tokens.push({
+            type: 'code',
+            codeBlockStyle: 'indented',
+            text: !this.options.pedantic ? rtrim(cap, '\n') : cap
+          });
         }
 
-        src = src.substring(cap[0].length);
-        out += this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0]) : cap[0];
         continue;
-      } // link
+      } // fences
 
 
-      if (cap = this.rules.link.exec(src)) {
-        var lastParenIndex = findClosingBracket(cap[2], '()');
+      if (cap = this.rules.fences.exec(src)) {
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'code',
+          lang: cap[2] ? cap[2].trim() : cap[2],
+          text: cap[3] || ''
+        });
+        continue;
+      } // heading
 
-        if (lastParenIndex > -1) {
-          var linkLen = 4 + cap[1].length + lastParenIndex;
-          cap[2] = cap[2].substring(0, lastParenIndex);
-          cap[0] = cap[0].substring(0, linkLen).trim();
-          cap[3] = '';
-        }
 
+      if (cap = this.rules.heading.exec(src)) {
         src = src.substring(cap[0].length);
-        this.inLink = true;
-        href = cap[2];
+        this.tokens.push({
+          type: 'heading',
+          depth: cap[1].length,
+          text: cap[2]
+        });
+        continue;
+      } // table no leading pipe (gfm)
 
-        if (this.options.pedantic) {
-          link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href);
 
-          if (link) {
-            href = link[1];
-            title = link[3];
-          } else {
-            title = '';
-          }
-        } else {
-          title = cap[3] ? cap[3].slice(1, -1) : '';
-        }
+      if (cap = this.rules.nptable.exec(src)) {
+        item = {
+          type: 'table',
+          header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
+          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
+        };
 
-        href = href.trim().replace(/^<([\s\S]*)>$/, '$1');
-        out += this.outputLink(cap, {
-          href: InlineLexer.escapes(href),
-          title: InlineLexer.escapes(title)
-        });
-        this.inLink = false;
-        continue;
-      } // reflink, nolink
+        if (item.header.length === item.align.length) {
+          src = src.substring(cap[0].length);
 
+          for (i = 0; i < item.align.length; i++) {
+            if (/^ *-+: *$/.test(item.align[i])) {
+              item.align[i] = 'right';
+            } else if (/^ *:-+: *$/.test(item.align[i])) {
+              item.align[i] = 'center';
+            } else if (/^ *:-+ *$/.test(item.align[i])) {
+              item.align[i] = 'left';
+            } else {
+              item.align[i] = null;
+            }
+          }
 
-      if ((cap = this.rules.reflink.exec(src)) || (cap = this.rules.nolink.exec(src))) {
-        src = src.substring(cap[0].length);
-        link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
-        link = this.links[link.toLowerCase()];
+          for (i = 0; i < item.cells.length; i++) {
+            item.cells[i] = splitCells(item.cells[i], item.header.length);
+          }
 
-        if (!link || !link.href) {
-          out += cap[0].charAt(0);
-          src = cap[0].substring(1) + src;
+          this.tokens.push(item);
           continue;
         }
-
-        this.inLink = true;
-        out += this.outputLink(cap, link);
-        this.inLink = false;
-        continue;
-      } // strong
+      } // hr
 
 
-      if (cap = this.rules.strong.exec(src)) {
+      if (cap = this.rules.hr.exec(src)) {
         src = src.substring(cap[0].length);
-        out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));
+        this.tokens.push({
+          type: 'hr'
+        });
         continue;
-      } // em
+      } // blockquote
 
 
-      if (cap = this.rules.em.exec(src)) {
+      if (cap = this.rules.blockquote.exec(src)) {
         src = src.substring(cap[0].length);
-        out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));
-        continue;
-      } // code
-
+        this.tokens.push({
+          type: 'blockquote_start'
+        });
+        cap = cap[0].replace(/^ *> ?/gm, ''); // Pass `top` to keep the current
+        // "toplevel" state. This is exactly
+        // how markdown.pl works.
 
-      if (cap = this.rules.code.exec(src)) {
-        src = src.substring(cap[0].length);
-        out += this.renderer.codespan(escape(cap[2].trim(), true));
+        this.token(cap, top);
+        this.tokens.push({
+          type: 'blockquote_end'
+        });
         continue;
-      } // br
+      } // list
 
 
-      if (cap = this.rules.br.exec(src)) {
+      if (cap = this.rules.list.exec(src)) {
         src = src.substring(cap[0].length);
-        out += this.renderer.br();
-        continue;
-      } // del (gfm)
+        bull = cap[2];
+        isordered = bull.length > 1;
+        listStart = {
+          type: 'list_start',
+          ordered: isordered,
+          start: isordered ? +bull : '',
+          loose: false
+        };
+        this.tokens.push(listStart); // Get each top-level item.
 
+        cap = cap[0].match(this.rules.item);
+        listItems = [];
+        next = false;
+        l = cap.length;
+        i = 0;
 
-      if (cap = this.rules.del.exec(src)) {
-        src = src.substring(cap[0].length);
-        out += this.renderer.del(this.output(cap[1]));
-        continue;
-      } // autolink
+        for (; i < l; i++) {
+          item = cap[i]; // Remove the list item's bullet
+          // so it is seen as the next token.
 
+          space = item.length;
+          item = item.replace(/^ *([*+-]|\d+\.) */, ''); // Outdent whatever the
+          // list item contains. Hacky.
 
-      if (cap = this.rules.autolink.exec(src)) {
-        src = src.substring(cap[0].length);
+          if (~item.indexOf('\n ')) {
+            space -= item.length;
+            item = !this.options.pedantic ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '') : item.replace(/^ {1,4}/gm, '');
+          } // Determine whether the next list item belongs here.
+          // Backpedal if it does not belong in this list.
 
-        if (cap[2] === '@') {
-          text = escape(this.mangle(cap[1]));
-          href = 'mailto:' + text;
-        } else {
-          text = escape(cap[1]);
-          href = text;
-        }
 
-        out += this.renderer.link(href, null, text);
-        continue;
-      } // url (gfm)
+          if (i !== l - 1) {
+            b = block.bullet.exec(cap[i + 1])[0];
 
+            if (bull.length > 1 ? b.length === 1 : b.length > 1 || this.options.smartLists && b !== bull) {
+              src = cap.slice(i + 1).join('\n') + src;
+              i = l - 1;
+            }
+          } // Determine whether item is loose or not.
+          // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
+          // for discount behavior.
 
-      if (!this.inLink && (cap = this.rules.url.exec(src))) {
-        if (cap[2] === '@') {
-          text = escape(cap[0]);
-          href = 'mailto:' + text;
-        } else {
-          // do extended autolink path validation
-          do {
-            prevCapZero = cap[0];
-            cap[0] = this.rules._backpedal.exec(cap[0])[0];
-          } while (prevCapZero !== cap[0]);
 
-          text = escape(cap[0]);
+          loose = next || /\n\n(?!\s*$)/.test(item);
 
-          if (cap[1] === 'www.') {
-            href = 'http://' + text;
-          } else {
-            href = text;
+          if (i !== l - 1) {
+            next = item.charAt(item.length - 1) === '\n';
+            if (!loose) loose = next;
           }
-        }
-
-        src = src.substring(cap[0].length);
-        out += this.renderer.link(href, null, text);
-        continue;
-      } // text
-
-
-      if (cap = this.rules.text.exec(src)) {
-        src = src.substring(cap[0].length);
-
-        if (this.inRawBlock) {
-          out += this.renderer.text(this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0]) : cap[0]);
-        } else {
-          out += this.renderer.text(escape(this.smartypants(cap[0])));
-        }
-
-        continue;
-      }
-
-      if (src) {
-        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
-      }
-    }
-
-    return out;
-  };
-
-  InlineLexer.escapes = function (text) {
-    return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;
-  };
-  /**
-   * Compile Link
-   */
-
-
-  InlineLexer.prototype.outputLink = function (cap, link) {
-    var href = link.href,
-        title = link.title ? escape(link.title) : null;
-    return cap[0].charAt(0) !== '!' ? this.renderer.link(href, title, this.output(cap[1])) : this.renderer.image(href, title, escape(cap[1]));
-  };
-  /**
-   * Smartypants Transformations
-   */
-
-
-  InlineLexer.prototype.smartypants = function (text) {
-    if (!this.options.smartypants) return text;
-    return text // em-dashes
-    .replace(/---/g, '\u2014') // en-dashes
-    .replace(/--/g, '\u2013') // opening singles
-    .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018') // closing singles & apostrophes
-    .replace(/'/g, '\u2019') // opening doubles
-    .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c') // closing doubles
-    .replace(/"/g, '\u201d') // ellipses
-    .replace(/\.{3}/g, '\u2026');
-  };
-  /**
-   * Mangle Links
-   */
-
-
-  InlineLexer.prototype.mangle = function (text) {
-    if (!this.options.mangle) return text;
-    var out = '',
-        l = text.length,
-        i = 0,
-        ch;
-
-    for (; i < l; i++) {
-      ch = text.charCodeAt(i);
-
-      if (Math.random() > 0.5) {
-        ch = 'x' + ch.toString(16);
-      }
-
-      out += '&#' + ch + ';';
-    }
-
-    return out;
-  };
-  /**
-   * Renderer
-   */
-
-
-  function Renderer(options) {
-    this.options = options || marked.defaults;
-  }
-
-  Renderer.prototype.code = function (code, infostring, escaped) {
-    var lang = (infostring || '').match(/\S*/)[0];
-
-    if (this.options.highlight) {
-      var out = this.options.highlight(code, lang);
 
-      if (out != null && out !== code) {
-        escaped = true;
-        code = out;
-      }
-    }
-
-    if (!lang) {
-      return '<pre><code>' + (escaped ? code : escape(code, true)) + '</code></pre>';
-    }
+          if (loose) {
+            listStart.loose = true;
+          } // Check for task list items
 
-    return '<pre><code class="' + this.options.langPrefix + escape(lang, true) + '">' + (escaped ? code : escape(code, true)) + '</code></pre>\n';
-  };
 
-  Renderer.prototype.blockquote = function (quote) {
-    return '<blockquote>\n' + quote + '</blockquote>\n';
-  };
+          istask = /^\[[ xX]\] /.test(item);
+          ischecked = undefined;
 
-  Renderer.prototype.html = function (html) {
-    return html;
-  };
+          if (istask) {
+            ischecked = item[1] !== ' ';
+            item = item.replace(/^\[[ xX]\] +/, '');
+          }
 
-  Renderer.prototype.heading = function (text, level, raw, slugger) {
-    if (this.options.headerIds) {
-      return '<h' + level + ' id="' + this.options.headerPrefix + slugger.slug(raw) + '">' + text + '</h' + level + '>\n';
-    } // ignore IDs
+          t = {
+            type: 'list_item_start',
+            task: istask,
+            checked: ischecked,
+            loose: loose
+          };
+          listItems.push(t);
+          this.tokens.push(t); // Recurse.
 
+          this.token(item, false);
+          this.tokens.push({
+            type: 'list_item_end'
+          });
+        }
 
-    return '<h' + level + '>' + text + '</h' + level + '>\n';
-  };
+        if (listStart.loose) {
+          l = listItems.length;
+          i = 0;
 
-  Renderer.prototype.hr = function () {
-    return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
-  };
+          for (; i < l; i++) {
+            listItems[i].loose = true;
+          }
+        }
 
-  Renderer.prototype.list = function (body, ordered, start) {
-    var type = ordered ? 'ol' : 'ul',
-        startatt = ordered && start !== 1 ? ' start="' + start + '"' : '';
-    return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
-  };
+        this.tokens.push({
+          type: 'list_end'
+        });
+        continue;
+      } // html
 
-  Renderer.prototype.listitem = function (text) {
-    return '<li>' + text + '</li>\n';
-  };
 
-  Renderer.prototype.checkbox = function (checked) {
-    return '<input ' + (checked ? 'checked="" ' : '') + 'disabled="" type="checkbox"' + (this.options.xhtml ? ' /' : '') + '> ';
-  };
+      if (cap = this.rules.html.exec(src)) {
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: this.options.sanitize ? 'paragraph' : 'html',
+          pre: !this.options.sanitizer && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
+          text: this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0]) : cap[0]
+        });
+        continue;
+      } // def
 
-  Renderer.prototype.paragraph = function (text) {
-    return '<p>' + text + '</p>\n';
-  };
 
-  Renderer.prototype.table = function (header, body) {
-    if (body) body = '<tbody>' + body + '</tbody>';
-    return '<table>\n' + '<thead>\n' + header + '</thead>\n' + body + '</table>\n';
-  };
+      if (top && (cap = this.rules.def.exec(src))) {
+        src = src.substring(cap[0].length);
+        if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);
+        tag = cap[1].toLowerCase().replace(/\s+/g, ' ');
 
-  Renderer.prototype.tablerow = function (content) {
-    return '<tr>\n' + content + '</tr>\n';
-  };
+        if (!this.tokens.links[tag]) {
+          this.tokens.links[tag] = {
+            href: cap[2],
+            title: cap[3]
+          };
+        }
 
-  Renderer.prototype.tablecell = function (content, flags) {
-    var type = flags.header ? 'th' : 'td';
-    var tag = flags.align ? '<' + type + ' align="' + flags.align + '">' : '<' + type + '>';
-    return tag + content + '</' + type + '>\n';
-  }; // span level renderer
+        continue;
+      } // table (gfm)
 
 
-  Renderer.prototype.strong = function (text) {
-    return '<strong>' + text + '</strong>';
-  };
+      if (cap = this.rules.table.exec(src)) {
+        item = {
+          type: 'table',
+          header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
+          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
+        };
 
-  Renderer.prototype.em = function (text) {
-    return '<em>' + text + '</em>';
-  };
+        if (item.header.length === item.align.length) {
+          src = src.substring(cap[0].length);
 
-  Renderer.prototype.codespan = function (text) {
-    return '<code>' + text + '</code>';
-  };
+          for (i = 0; i < item.align.length; i++) {
+            if (/^ *-+: *$/.test(item.align[i])) {
+              item.align[i] = 'right';
+            } else if (/^ *:-+: *$/.test(item.align[i])) {
+              item.align[i] = 'center';
+            } else if (/^ *:-+ *$/.test(item.align[i])) {
+              item.align[i] = 'left';
+            } else {
+              item.align[i] = null;
+            }
+          }
 
-  Renderer.prototype.br = function () {
-    return this.options.xhtml ? '<br/>' : '<br>';
-  };
+          for (i = 0; i < item.cells.length; i++) {
+            item.cells[i] = splitCells(item.cells[i].replace(/^ *\| *| *\| *$/g, ''), item.header.length);
+          }
 
-  Renderer.prototype.del = function (text) {
-    return '<del>' + text + '</del>';
-  };
+          this.tokens.push(item);
+          continue;
+        }
+      } // lheading
 
-  Renderer.prototype.link = function (href, title, text) {
-    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
 
-    if (href === null) {
-      return text;
-    }
+      if (cap = this.rules.lheading.exec(src)) {
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'heading',
+          depth: cap[2].charAt(0) === '=' ? 1 : 2,
+          text: cap[1]
+        });
+        continue;
+      } // top-level paragraph
 
-    var out = '<a href="' + escape(href) + '"';
 
-    if (title) {
-      out += ' title="' + title + '"';
-    }
+      if (top && (cap = this.rules.paragraph.exec(src))) {
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'paragraph',
+          text: cap[1].charAt(cap[1].length - 1) === '\n' ? cap[1].slice(0, -1) : cap[1]
+        });
+        continue;
+      } // text
 
-    out += '>' + text + '</a>';
-    return out;
-  };
 
-  Renderer.prototype.image = function (href, title, text) {
-    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
+      if (cap = this.rules.text.exec(src)) {
+        // Top-level should never reach here.
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'text',
+          text: cap[0]
+        });
+        continue;
+      }
 
-    if (href === null) {
-      return text;
+      if (src) {
+        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
+      }
     }
 
-    var out = '<img src="' + href + '" alt="' + text + '"';
+    return this.tokens;
+  }
 
-    if (title) {
-      out += ' title="' + title + '"';
-    }
+};
 
-    out += this.options.xhtml ? '/>' : '>';
-    return out;
-  };
+/***/ }),
 
-  Renderer.prototype.text = function (text) {
-    return text;
-  };
-  /**
-   * TextRenderer
-   * returns only the textual part of the token
-   */
+/***/ "./node_modules/marked/src/Parser.js":
+/*!*******************************************!*\
+  !*** ./node_modules/marked/src/Parser.js ***!
+  \*******************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
 
+const Renderer = __webpack_require__(/*! ./Renderer.js */ "./node_modules/marked/src/Renderer.js");
 
-  function TextRenderer() {} // no need for block level renderers
+const Slugger = __webpack_require__(/*! ./Slugger.js */ "./node_modules/marked/src/Slugger.js");
 
+const InlineLexer = __webpack_require__(/*! ./InlineLexer.js */ "./node_modules/marked/src/InlineLexer.js");
 
-  TextRenderer.prototype.strong = TextRenderer.prototype.em = TextRenderer.prototype.codespan = TextRenderer.prototype.del = TextRenderer.prototype.text = function (text) {
-    return text;
-  };
+const TextRenderer = __webpack_require__(/*! ./TextRenderer.js */ "./node_modules/marked/src/TextRenderer.js");
 
-  TextRenderer.prototype.link = TextRenderer.prototype.image = function (href, title, text) {
-    return '' + text;
-  };
+const {
+  defaults
+} = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
 
-  TextRenderer.prototype.br = function () {
-    return '';
-  };
-  /**
-   * Parsing & Compiling
-   */
+const {
+  merge,
+  unescape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
+/**
+ * Parsing & Compiling
+ */
 
 
-  function Parser(options) {
+module.exports = class Parser {
+  constructor(options) {
     this.tokens = [];
     this.token = null;
-    this.options = options || marked.defaults;
+    this.options = options || defaults;
     this.options.renderer = this.options.renderer || new Renderer();
     this.renderer = this.options.renderer;
     this.renderer.options = this.options;
@@ -19233,67 +18578,64 @@ module.exports = {
    */
 
 
-  Parser.parse = function (src, options) {
-    var parser = new Parser(options);
-    return parser.parse(src);
-  };
+  static parse(tokens, options) {
+    const parser = new Parser(options);
+    return parser.parse(tokens);
+  }
+
   /**
    * Parse Loop
    */
+  parse(tokens) {
+    this.inline = new InlineLexer(tokens.links, this.options); // use an InlineLexer with a TextRenderer to extract pure text
 
-
-  Parser.prototype.parse = function (src) {
-    this.inline = new InlineLexer(src.links, this.options); // use an InlineLexer with a TextRenderer to extract pure text
-
-    this.inlineText = new InlineLexer(src.links, merge({}, this.options, {
+    this.inlineText = new InlineLexer(tokens.links, merge({}, this.options, {
       renderer: new TextRenderer()
     }));
-    this.tokens = src.reverse();
-    var out = '';
+    this.tokens = tokens.reverse();
+    let out = '';
 
     while (this.next()) {
       out += this.tok();
     }
 
     return out;
-  };
+  }
+
   /**
    * Next Token
    */
-
-
-  Parser.prototype.next = function () {
+  next() {
     this.token = this.tokens.pop();
     return this.token;
-  };
+  }
+
   /**
    * Preview Next Token
    */
-
-
-  Parser.prototype.peek = function () {
+  peek() {
     return this.tokens[this.tokens.length - 1] || 0;
-  };
+  }
+
   /**
    * Parse Text Tokens
    */
-
-
-  Parser.prototype.parseText = function () {
-    var body = this.token.text;
+  parseText() {
+    let body = this.token.text;
 
     while (this.peek().type === 'text') {
       body += '\n' + this.next().text;
     }
 
     return this.inline.output(body);
-  };
+  }
+
   /**
    * Parse Current Token
    */
+  tok() {
+    let body = '';
 
-
-  Parser.prototype.tok = function () {
     switch (this.token.type) {
       case 'space':
         {
@@ -19317,8 +18659,7 @@ module.exports = {
 
       case 'table':
         {
-          var header = '',
-              body = '',
+          let header = '',
               i,
               row,
               cell,
@@ -19366,8 +18707,8 @@ module.exports = {
       case 'list_start':
         {
           body = '';
-          var ordered = this.token.ordered,
-              start = this.token.start;
+          const ordered = this.token.ordered,
+                start = this.token.start;
 
           while (this.next().type !== 'list_end') {
             body += this.tok();
@@ -19379,12 +18720,24 @@ module.exports = {
       case 'list_item_start':
         {
           body = '';
-          var loose = this.token.loose;
-          var checked = this.token.checked;
-          var task = this.token.task;
+          const loose = this.token.loose;
+          const checked = this.token.checked;
+          const task = this.token.task;
 
           if (this.token.task) {
-            body += this.renderer.checkbox(checked);
+            if (loose) {
+              if (this.peek().type === 'text') {
+                const nextToken = this.peek();
+                nextToken.text = this.renderer.checkbox(checked) + ' ' + nextToken.text;
+              } else {
+                this.tokens.push({
+                  type: 'text',
+                  text: this.renderer.checkbox(checked)
+                });
+              }
+            } else {
+              body += this.renderer.checkbox(checked);
+            }
           }
 
           while (this.next().type !== 'list_item_end') {
@@ -19410,425 +18763,909 @@ module.exports = {
           return this.renderer.paragraph(this.parseText());
         }
 
-      default:
-        {
-          var errMsg = 'Token with "' + this.token.type + '" type was not found.';
+      default:
+        {
+          const errMsg = 'Token with "' + this.token.type + '" type was not found.';
+
+          if (this.options.silent) {
+            console.log(errMsg);
+          } else {
+            throw new Error(errMsg);
+          }
+        }
+    }
+  }
+
+};
+
+/***/ }),
+
+/***/ "./node_modules/marked/src/Renderer.js":
+/*!*********************************************!*\
+  !*** ./node_modules/marked/src/Renderer.js ***!
+  \*********************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+const {
+  defaults
+} = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
+
+const {
+  cleanUrl,
+  escape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
+/**
+ * Renderer
+ */
+
+
+module.exports = class Renderer {
+  constructor(options) {
+    this.options = options || defaults;
+  }
+
+  code(code, infostring, escaped) {
+    const lang = (infostring || '').match(/\S*/)[0];
+
+    if (this.options.highlight) {
+      const out = this.options.highlight(code, lang);
+
+      if (out != null && out !== code) {
+        escaped = true;
+        code = out;
+      }
+    }
+
+    if (!lang) {
+      return '<pre><code>' + (escaped ? code : escape(code, true)) + '</code></pre>';
+    }
+
+    return '<pre><code class="' + this.options.langPrefix + escape(lang, true) + '">' + (escaped ? code : escape(code, true)) + '</code></pre>\n';
+  }
+
+  blockquote(quote) {
+    return '<blockquote>\n' + quote + '</blockquote>\n';
+  }
+
+  html(html) {
+    return html;
+  }
+
+  heading(text, level, raw, slugger) {
+    if (this.options.headerIds) {
+      return '<h' + level + ' id="' + this.options.headerPrefix + slugger.slug(raw) + '">' + text + '</h' + level + '>\n';
+    } // ignore IDs
+
+
+    return '<h' + level + '>' + text + '</h' + level + '>\n';
+  }
+
+  hr() {
+    return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
+  }
+
+  list(body, ordered, start) {
+    const type = ordered ? 'ol' : 'ul',
+          startatt = ordered && start !== 1 ? ' start="' + start + '"' : '';
+    return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
+  }
+
+  listitem(text) {
+    return '<li>' + text + '</li>\n';
+  }
+
+  checkbox(checked) {
+    return '<input ' + (checked ? 'checked="" ' : '') + 'disabled="" type="checkbox"' + (this.options.xhtml ? ' /' : '') + '> ';
+  }
+
+  paragraph(text) {
+    return '<p>' + text + '</p>\n';
+  }
+
+  table(header, body) {
+    if (body) body = '<tbody>' + body + '</tbody>';
+    return '<table>\n' + '<thead>\n' + header + '</thead>\n' + body + '</table>\n';
+  }
+
+  tablerow(content) {
+    return '<tr>\n' + content + '</tr>\n';
+  }
+
+  tablecell(content, flags) {
+    const type = flags.header ? 'th' : 'td';
+    const tag = flags.align ? '<' + type + ' align="' + flags.align + '">' : '<' + type + '>';
+    return tag + content + '</' + type + '>\n';
+  }
+
+  // span level renderer
+  strong(text) {
+    return '<strong>' + text + '</strong>';
+  }
+
+  em(text) {
+    return '<em>' + text + '</em>';
+  }
+
+  codespan(text) {
+    return '<code>' + text + '</code>';
+  }
+
+  br() {
+    return this.options.xhtml ? '<br/>' : '<br>';
+  }
+
+  del(text) {
+    return '<del>' + text + '</del>';
+  }
+
+  link(href, title, text) {
+    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
+
+    if (href === null) {
+      return text;
+    }
+
+    let out = '<a href="' + escape(href) + '"';
+
+    if (title) {
+      out += ' title="' + title + '"';
+    }
+
+    out += '>' + text + '</a>';
+    return out;
+  }
+
+  image(href, title, text) {
+    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
+
+    if (href === null) {
+      return text;
+    }
+
+    let out = '<img src="' + href + '" alt="' + text + '"';
+
+    if (title) {
+      out += ' title="' + title + '"';
+    }
+
+    out += this.options.xhtml ? '/>' : '>';
+    return out;
+  }
+
+  text(text) {
+    return text;
+  }
+
+};
+
+/***/ }),
+
+/***/ "./node_modules/marked/src/Slugger.js":
+/*!********************************************!*\
+  !*** ./node_modules/marked/src/Slugger.js ***!
+  \********************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
+
+/**
+ * Slugger generates header id
+ */
+module.exports = class Slugger {
+  constructor() {
+    this.seen = {};
+  }
+  /**
+   * Convert string to unique id
+   */
+
+
+  slug(value) {
+    let slug = value.toLowerCase().trim().replace(/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g, '').replace(/\s/g, '-');
+
+    if (this.seen.hasOwnProperty(slug)) {
+      const originalSlug = slug;
+
+      do {
+        this.seen[originalSlug]++;
+        slug = originalSlug + '-' + this.seen[originalSlug];
+      } while (this.seen.hasOwnProperty(slug));
+    }
+
+    this.seen[slug] = 0;
+    return slug;
+  }
+
+};
+
+/***/ }),
+
+/***/ "./node_modules/marked/src/TextRenderer.js":
+/*!*************************************************!*\
+  !*** ./node_modules/marked/src/TextRenderer.js ***!
+  \*************************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
+
+/**
+ * TextRenderer
+ * returns only the textual part of the token
+ */
+module.exports = class TextRenderer {
+  // no need for block level renderers
+  strong(text) {
+    return text;
+  }
+
+  em(text) {
+    return text;
+  }
+
+  codespan(text) {
+    return text;
+  }
+
+  del(text) {
+    return text;
+  }
 
-          if (this.options.silent) {
-            console.log(errMsg);
-          } else {
-            throw new Error(errMsg);
-          }
-        }
-    }
-  };
-  /**
-   * Slugger generates header id
-   */
+  text(text) {
+    return text;
+  }
 
+  link(href, title, text) {
+    return '' + text;
+  }
 
-  function Slugger() {
-    this.seen = {};
+  image(href, title, text) {
+    return '' + text;
   }
-  /**
-   * Convert string to unique id
-   */
 
+  br() {
+    return '';
+  }
 
-  Slugger.prototype.slug = function (value) {
-    var slug = value.toLowerCase().trim().replace(/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g, '').replace(/\s/g, '-');
+};
 
-    if (this.seen.hasOwnProperty(slug)) {
-      var originalSlug = slug;
+/***/ }),
 
-      do {
-        this.seen[originalSlug]++;
-        slug = originalSlug + '-' + this.seen[originalSlug];
-      } while (this.seen.hasOwnProperty(slug));
-    }
+/***/ "./node_modules/marked/src/defaults.js":
+/*!*********************************************!*\
+  !*** ./node_modules/marked/src/defaults.js ***!
+  \*********************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
 
-    this.seen[slug] = 0;
-    return slug;
+function getDefaults() {
+  return {
+    baseUrl: null,
+    breaks: false,
+    gfm: true,
+    headerIds: true,
+    headerPrefix: '',
+    highlight: null,
+    langPrefix: 'language-',
+    mangle: true,
+    pedantic: false,
+    renderer: null,
+    sanitize: false,
+    sanitizer: null,
+    silent: false,
+    smartLists: false,
+    smartypants: false,
+    xhtml: false
   };
-  /**
-   * Helpers
-   */
+}
 
+function changeDefaults(newDefaults) {
+  module.exports.defaults = newDefaults;
+}
 
-  function escape(html, encode) {
-    if (encode) {
-      if (escape.escapeTest.test(html)) {
-        return html.replace(escape.escapeReplace, function (ch) {
-          return escape.replacements[ch];
-        });
-      }
-    } else {
-      if (escape.escapeTestNoEncode.test(html)) {
-        return html.replace(escape.escapeReplaceNoEncode, function (ch) {
-          return escape.replacements[ch];
-        });
-      }
-    }
+module.exports = {
+  defaults: getDefaults(),
+  getDefaults,
+  changeDefaults
+};
 
-    return html;
-  }
+/***/ }),
 
-  escape.escapeTest = /[&<>"']/;
-  escape.escapeReplace = /[&<>"']/g;
-  escape.replacements = {
-    '&': '&amp;',
-    '<': '&lt;',
-    '>': '&gt;',
-    '"': '&quot;',
-    "'": '&#39;'
-  };
-  escape.escapeTestNoEncode = /[<>"']|&(?!#?\w+;)/;
-  escape.escapeReplaceNoEncode = /[<>"']|&(?!#?\w+;)/g;
+/***/ "./node_modules/marked/src/helpers.js":
+/*!********************************************!*\
+  !*** ./node_modules/marked/src/helpers.js ***!
+  \********************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
 
-  function unescape(html) {
-    // explicitly match decimal, hex, and named HTML entities
-    return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig, function (_, n) {
-      n = n.toLowerCase();
-      if (n === 'colon') return ':';
+/**
+ * Helpers
+ */
+const escapeTest = /[&<>"']/;
+const escapeReplace = /[&<>"']/g;
+const escapeTestNoEncode = /[<>"']|&(?!#?\w+;)/;
+const escapeReplaceNoEncode = /[<>"']|&(?!#?\w+;)/g;
+const escapeReplacements = {
+  '&': '&amp;',
+  '<': '&lt;',
+  '>': '&gt;',
+  '"': '&quot;',
+  "'": '&#39;'
+};
 
-      if (n.charAt(0) === '#') {
-        return n.charAt(1) === 'x' ? String.fromCharCode(parseInt(n.substring(2), 16)) : String.fromCharCode(+n.substring(1));
-      }
+const getEscapeReplacement = ch => escapeReplacements[ch];
 
-      return '';
-    });
+function escape(html, encode) {
+  if (encode) {
+    if (escapeTest.test(html)) {
+      return html.replace(escapeReplace, getEscapeReplacement);
+    }
+  } else {
+    if (escapeTestNoEncode.test(html)) {
+      return html.replace(escapeReplaceNoEncode, getEscapeReplacement);
+    }
   }
 
-  function edit(regex, opt) {
-    regex = regex.source || regex;
-    opt = opt || '';
-    return {
-      replace: function (name, val) {
-        val = val.source || val;
-        val = val.replace(/(^|[^\[])\^/g, '$1');
-        regex = regex.replace(name, val);
-        return this;
-      },
-      getRegex: function () {
-        return new RegExp(regex, opt);
-      }
-    };
-  }
+  return html;
+}
 
-  function cleanUrl(sanitize, base, href) {
-    if (sanitize) {
-      try {
-        var prot = decodeURIComponent(unescape(href)).replace(/[^\w:]/g, '').toLowerCase();
-      } catch (e) {
-        return null;
-      }
+const unescapeTest = /&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig;
 
-      if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {
-        return null;
-      }
+function unescape(html) {
+  // explicitly match decimal, hex, and named HTML entities
+  return html.replace(unescapeTest, (_, n) => {
+    n = n.toLowerCase();
+    if (n === 'colon') return ':';
+
+    if (n.charAt(0) === '#') {
+      return n.charAt(1) === 'x' ? String.fromCharCode(parseInt(n.substring(2), 16)) : String.fromCharCode(+n.substring(1));
     }
 
-    if (base && !originIndependentUrl.test(href)) {
-      href = resolveUrl(base, href);
+    return '';
+  });
+}
+
+const caret = /(^|[^\[])\^/g;
+
+function edit(regex, opt) {
+  regex = regex.source || regex;
+  opt = opt || '';
+  const obj = {
+    replace: (name, val) => {
+      val = val.source || val;
+      val = val.replace(caret, '$1');
+      regex = regex.replace(name, val);
+      return obj;
+    },
+    getRegex: () => {
+      return new RegExp(regex, opt);
     }
+  };
+  return obj;
+}
+
+const nonWordAndColonTest = /[^\w:]/g;
+const originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;
+
+function cleanUrl(sanitize, base, href) {
+  if (sanitize) {
+    let prot;
 
     try {
-      href = encodeURI(href).replace(/%25/g, '%');
+      prot = decodeURIComponent(unescape(href)).replace(nonWordAndColonTest, '').toLowerCase();
     } catch (e) {
       return null;
     }
 
-    return href;
+    if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {
+      return null;
+    }
+  }
+
+  if (base && !originIndependentUrl.test(href)) {
+    href = resolveUrl(base, href);
   }
 
-  function resolveUrl(base, href) {
-    if (!baseUrls[' ' + base]) {
-      // we can ignore everything in base after the last slash of its path component,
-      // but we might need to add _that_
-      // https://tools.ietf.org/html/rfc3986#section-3
-      if (/^[^:]+:\/*[^/]*$/.test(base)) {
-        baseUrls[' ' + base] = base + '/';
-      } else {
-        baseUrls[' ' + base] = rtrim(base, '/', true);
-      }
-    }
+  try {
+    href = encodeURI(href).replace(/%25/g, '%');
+  } catch (e) {
+    return null;
+  }
 
-    base = baseUrls[' ' + base];
+  return href;
+}
 
-    if (href.slice(0, 2) === '//') {
-      return base.replace(/:[\s\S]*/, ':') + href;
-    } else if (href.charAt(0) === '/') {
-      return base.replace(/(:\/*[^/]*)[\s\S]*/, '$1') + href;
+const baseUrls = {};
+const justDomain = /^[^:]+:\/*[^/]*$/;
+const protocol = /^([^:]+:)[\s\S]*$/;
+const domain = /^([^:]+:\/*[^/]*)[\s\S]*$/;
+
+function resolveUrl(base, href) {
+  if (!baseUrls[' ' + base]) {
+    // we can ignore everything in base after the last slash of its path component,
+    // but we might need to add _that_
+    // https://tools.ietf.org/html/rfc3986#section-3
+    if (justDomain.test(base)) {
+      baseUrls[' ' + base] = base + '/';
     } else {
-      return base + href;
+      baseUrls[' ' + base] = rtrim(base, '/', true);
     }
   }
 
-  var baseUrls = {};
-  var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;
+  base = baseUrls[' ' + base];
+  const relativeBase = base.indexOf(':') === -1;
 
-  function noop() {}
+  if (href.substring(0, 2) === '//') {
+    if (relativeBase) {
+      return href;
+    }
+
+    return base.replace(protocol, '$1') + href;
+  } else if (href.charAt(0) === '/') {
+    if (relativeBase) {
+      return href;
+    }
 
-  noop.exec = noop;
+    return base.replace(domain, '$1') + href;
+  } else {
+    return base + href;
+  }
+}
 
-  function merge(obj) {
-    var i = 1,
-        target,
-        key;
+const noopTest = {
+  exec: function noopTest() {}
+};
 
-    for (; i < arguments.length; i++) {
-      target = arguments[i];
+function merge(obj) {
+  let i = 1,
+      target,
+      key;
 
-      for (key in target) {
-        if (Object.prototype.hasOwnProperty.call(target, key)) {
-          obj[key] = target[key];
-        }
+  for (; i < arguments.length; i++) {
+    target = arguments[i];
+
+    for (key in target) {
+      if (Object.prototype.hasOwnProperty.call(target, key)) {
+        obj[key] = target[key];
       }
     }
-
-    return obj;
   }
 
-  function splitCells(tableRow, count) {
-    // ensure that every cell-delimiting pipe has a space
-    // before it to distinguish it from an escaped pipe
-    var row = tableRow.replace(/\|/g, function (match, offset, str) {
-      var escaped = false,
-          curr = offset;
+  return obj;
+}
 
-      while (--curr >= 0 && str[curr] === '\\') escaped = !escaped;
+function splitCells(tableRow, count) {
+  // ensure that every cell-delimiting pipe has a space
+  // before it to distinguish it from an escaped pipe
+  const row = tableRow.replace(/\|/g, (match, offset, str) => {
+    let escaped = false,
+        curr = offset;
 
-      if (escaped) {
-        // odd number of slashes means | is escaped
-        // so we leave it alone
-        return '|';
-      } else {
-        // add space before unescaped |
-        return ' |';
-      }
-    }),
-        cells = row.split(/ \|/),
-        i = 0;
+    while (--curr >= 0 && str[curr] === '\\') escaped = !escaped;
 
-    if (cells.length > count) {
-      cells.splice(count);
+    if (escaped) {
+      // odd number of slashes means | is escaped
+      // so we leave it alone
+      return '|';
     } else {
-      while (cells.length < count) cells.push('');
+      // add space before unescaped |
+      return ' |';
     }
+  }),
+        cells = row.split(/ \|/);
+  let i = 0;
 
-    for (; i < cells.length; i++) {
-      // leading or trailing whitespace is ignored per the gfm spec
-      cells[i] = cells[i].trim().replace(/\\\|/g, '|');
-    }
+  if (cells.length > count) {
+    cells.splice(count);
+  } else {
+    while (cells.length < count) cells.push('');
+  }
 
-    return cells;
-  } // Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').
-  // /c*$/ is vulnerable to REDOS.
-  // invert: Remove suffix of non-c chars instead. Default falsey.
+  for (; i < cells.length; i++) {
+    // leading or trailing whitespace is ignored per the gfm spec
+    cells[i] = cells[i].trim().replace(/\\\|/g, '|');
+  }
 
+  return cells;
+} // Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').
+// /c*$/ is vulnerable to REDOS.
+// invert: Remove suffix of non-c chars instead. Default falsey.
 
-  function rtrim(str, c, invert) {
-    if (str.length === 0) {
-      return '';
-    } // Length of suffix matching the invert condition.
 
+function rtrim(str, c, invert) {
+  const l = str.length;
 
-    var suffLen = 0; // Step left until we fail to match the invert condition.
+  if (l === 0) {
+    return '';
+  } // Length of suffix matching the invert condition.
 
-    while (suffLen < str.length) {
-      var currChar = str.charAt(str.length - suffLen - 1);
 
-      if (currChar === c && !invert) {
-        suffLen++;
-      } else if (currChar !== c && invert) {
-        suffLen++;
-      } else {
-        break;
-      }
-    }
+  let suffLen = 0; // Step left until we fail to match the invert condition.
 
-    return str.substr(0, str.length - suffLen);
-  }
+  while (suffLen < l) {
+    const currChar = str.charAt(l - suffLen - 1);
 
-  function findClosingBracket(str, b) {
-    if (str.indexOf(b[1]) === -1) {
-      return -1;
+    if (currChar === c && !invert) {
+      suffLen++;
+    } else if (currChar !== c && invert) {
+      suffLen++;
+    } else {
+      break;
     }
+  }
 
-    var level = 0;
+  return str.substr(0, l - suffLen);
+}
 
-    for (var i = 0; i < str.length; i++) {
-      if (str[i] === '\\') {
-        i++;
-      } else if (str[i] === b[0]) {
-        level++;
-      } else if (str[i] === b[1]) {
-        level--;
+function findClosingBracket(str, b) {
+  if (str.indexOf(b[1]) === -1) {
+    return -1;
+  }
 
-        if (level < 0) {
-          return i;
-        }
+  const l = str.length;
+  let level = 0,
+      i = 0;
+
+  for (; i < l; i++) {
+    if (str[i] === '\\') {
+      i++;
+    } else if (str[i] === b[0]) {
+      level++;
+    } else if (str[i] === b[1]) {
+      level--;
+
+      if (level < 0) {
+        return i;
       }
     }
+  }
 
-    return -1;
+  return -1;
+}
+
+function checkSanitizeDeprecation(opt) {
+  if (opt && opt.sanitize && !opt.silent) {
+    console.warn('marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. Read more here: https://marked.js.org/#/USING_ADVANCED.md#options');
   }
+}
 
-  function checkSanitizeDeprecation(opt) {
-    if (opt && opt.sanitize && !opt.silent) {
-      console.warn('marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. Read more here: https://marked.js.org/#/USING_ADVANCED.md#options');
-    }
+module.exports = {
+  escape,
+  unescape,
+  edit,
+  cleanUrl,
+  resolveUrl,
+  noopTest,
+  merge,
+  splitCells,
+  rtrim,
+  findClosingBracket,
+  checkSanitizeDeprecation
+};
+
+/***/ }),
+
+/***/ "./node_modules/marked/src/marked.js":
+/*!*******************************************!*\
+  !*** ./node_modules/marked/src/marked.js ***!
+  \*******************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+const Lexer = __webpack_require__(/*! ./Lexer.js */ "./node_modules/marked/src/Lexer.js");
+
+const Parser = __webpack_require__(/*! ./Parser.js */ "./node_modules/marked/src/Parser.js");
+
+const Renderer = __webpack_require__(/*! ./Renderer.js */ "./node_modules/marked/src/Renderer.js");
+
+const TextRenderer = __webpack_require__(/*! ./TextRenderer.js */ "./node_modules/marked/src/TextRenderer.js");
+
+const InlineLexer = __webpack_require__(/*! ./InlineLexer.js */ "./node_modules/marked/src/InlineLexer.js");
+
+const Slugger = __webpack_require__(/*! ./Slugger.js */ "./node_modules/marked/src/Slugger.js");
+
+const {
+  merge,
+  checkSanitizeDeprecation,
+  escape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
+
+const {
+  getDefaults,
+  changeDefaults,
+  defaults
+} = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
+/**
+ * Marked
+ */
+
+
+function marked(src, opt, callback) {
+  // throw error in case of non string input
+  if (typeof src === 'undefined' || src === null) {
+    throw new Error('marked(): input parameter is undefined or null');
   }
-  /**
-   * Marked
-   */
 
+  if (typeof src !== 'string') {
+    throw new Error('marked(): input parameter is of type ' + Object.prototype.toString.call(src) + ', string expected');
+  }
 
-  function marked(src, opt, callback) {
-    // throw error in case of non string input
-    if (typeof src === 'undefined' || src === null) {
-      throw new Error('marked(): input parameter is undefined or null');
+  if (callback || typeof opt === 'function') {
+    if (!callback) {
+      callback = opt;
+      opt = null;
     }
 
-    if (typeof src !== 'string') {
-      throw new Error('marked(): input parameter is of type ' + Object.prototype.toString.call(src) + ', string expected');
+    opt = merge({}, marked.defaults, opt || {});
+    checkSanitizeDeprecation(opt);
+    const highlight = opt.highlight;
+    let tokens,
+        pending,
+        i = 0;
+
+    try {
+      tokens = Lexer.lex(src, opt);
+    } catch (e) {
+      return callback(e);
     }
 
-    if (callback || typeof opt === 'function') {
-      if (!callback) {
-        callback = opt;
-        opt = null;
+    pending = tokens.length;
+
+    const done = function (err) {
+      if (err) {
+        opt.highlight = highlight;
+        return callback(err);
       }
 
-      opt = merge({}, marked.defaults, opt || {});
-      checkSanitizeDeprecation(opt);
-      var highlight = opt.highlight,
-          tokens,
-          pending,
-          i = 0;
+      let out;
 
       try {
-        tokens = Lexer.lex(src, opt);
+        out = Parser.parse(tokens, opt);
       } catch (e) {
-        return callback(e);
+        err = e;
       }
 
-      pending = tokens.length;
+      opt.highlight = highlight;
+      return err ? callback(err) : callback(null, out);
+    };
 
-      var done = function (err) {
-        if (err) {
-          opt.highlight = highlight;
-          return callback(err);
-        }
+    if (!highlight || highlight.length < 3) {
+      return done();
+    }
 
-        var out;
+    delete opt.highlight;
+    if (!pending) return done();
 
-        try {
-          out = Parser.parse(tokens, opt);
-        } catch (e) {
-          err = e;
+    for (; i < tokens.length; i++) {
+      (function (token) {
+        if (token.type !== 'code') {
+          return --pending || done();
         }
 
-        opt.highlight = highlight;
-        return err ? callback(err) : callback(null, out);
-      };
-
-      if (!highlight || highlight.length < 3) {
-        return done();
-      }
-
-      delete opt.highlight;
-      if (!pending) return done();
+        return highlight(token.text, token.lang, function (err, code) {
+          if (err) return done(err);
 
-      for (; i < tokens.length; i++) {
-        (function (token) {
-          if (token.type !== 'code') {
+          if (code == null || code === token.text) {
             return --pending || done();
           }
 
-          return highlight(token.text, token.lang, function (err, code) {
-            if (err) return done(err);
+          token.text = code;
+          token.escaped = true;
+          --pending || done();
+        });
+      })(tokens[i]);
+    }
 
-            if (code == null || code === token.text) {
-              return --pending || done();
-            }
+    return;
+  }
 
-            token.text = code;
-            token.escaped = true;
-            --pending || done();
-          });
-        })(tokens[i]);
-      }
+  try {
+    opt = merge({}, marked.defaults, opt || {});
+    checkSanitizeDeprecation(opt);
+    return Parser.parse(Lexer.lex(src, opt), opt);
+  } catch (e) {
+    e.message += '\nPlease report this to https://github.com/markedjs/marked.';
 
-      return;
+    if ((opt || marked.defaults).silent) {
+      return '<p>An error occurred:</p><pre>' + escape(e.message + '', true) + '</pre>';
     }
 
-    try {
-      if (opt) opt = merge({}, marked.defaults, opt);
-      checkSanitizeDeprecation(opt);
-      return Parser.parse(Lexer.lex(src, opt), opt);
-    } catch (e) {
-      e.message += '\nPlease report this to https://github.com/markedjs/marked.';
+    throw e;
+  }
+}
+/**
+ * Options
+ */
 
-      if ((opt || marked.defaults).silent) {
-        return '<p>An error occurred:</p><pre>' + escape(e.message + '', true) + '</pre>';
-      }
 
-      throw e;
-    }
-  }
-  /**
-   * Options
-   */
+marked.options = marked.setOptions = function (opt) {
+  merge(marked.defaults, opt);
+  changeDefaults(marked.defaults);
+  return marked;
+};
 
+marked.getDefaults = getDefaults;
+marked.defaults = defaults;
+/**
+ * Expose
+ */
 
-  marked.options = marked.setOptions = function (opt) {
-    merge(marked.defaults, opt);
-    return marked;
-  };
+marked.Parser = Parser;
+marked.parser = Parser.parse;
+marked.Renderer = Renderer;
+marked.TextRenderer = TextRenderer;
+marked.Lexer = Lexer;
+marked.lexer = Lexer.lex;
+marked.InlineLexer = InlineLexer;
+marked.inlineLexer = InlineLexer.output;
+marked.Slugger = Slugger;
+marked.parse = marked;
+module.exports = marked;
 
-  marked.getDefaults = function () {
-    return {
-      baseUrl: null,
-      breaks: false,
-      gfm: true,
-      headerIds: true,
-      headerPrefix: '',
-      highlight: null,
-      langPrefix: 'language-',
-      mangle: true,
-      pedantic: false,
-      renderer: new Renderer(),
-      sanitize: false,
-      sanitizer: null,
-      silent: false,
-      smartLists: false,
-      smartypants: false,
-      xhtml: false
-    };
-  };
+/***/ }),
 
-  marked.defaults = marked.getDefaults();
-  /**
-   * Expose
-   */
+/***/ "./node_modules/marked/src/rules.js":
+/*!******************************************!*\
+  !*** ./node_modules/marked/src/rules.js ***!
+  \******************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+const {
+  noopTest,
+  edit,
+  merge
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
+/**
+ * Block-Level Grammar
+ */
+
+
+const block = {
+  newline: /^\n+/,
+  code: /^( {4}[^\n]+\n*)+/,
+  fences: /^ {0,3}(`{3,}|~{3,})([^`~\n]*)\n(?:|([\s\S]*?)\n)(?: {0,3}\1[~`]* *(?:\n+|$)|$)/,
+  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
+  heading: /^ {0,3}(#{1,6}) +([^\n]*?)(?: +#+)? *(?:\n+|$)/,
+  blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
+  list: /^( {0,3})(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
+  html: '^ {0,3}(?:' // optional indentation
+  + '<(script|pre|style)[\\s>][\\s\\S]*?(?:</\\1>[^\\n]*\\n+|$)' // (1)
+  + '|comment[^\\n]*(\\n+|$)' // (2)
+  + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
+  + '|<![A-Z][\\s\\S]*?>\\n*' // (4)
+  + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5)
+  + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
+  + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
+  + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
+  + ')',
+  def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
+  nptable: noopTest,
+  table: noopTest,
+  lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
+  // regex template, placeholders will be replaced according to different paragraph
+  // interruption rules of commonmark and the original markdown spec:
+  _paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\n]+)*)/,
+  text: /^[^\n]+/
+};
+block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/;
+block._title = /(?:"(?:\\"?|[^"\\])*"|'[^'\n]*(?:\n[^'\n]+)*\n?'|\([^()]*\))/;
+block.def = edit(block.def).replace('label', block._label).replace('title', block._title).getRegex();
+block.bullet = /(?:[*+-]|\d{1,9}\.)/;
+block.item = /^( *)(bull) ?[^\n]*(?:\n(?!\1bull ?)[^\n]*)*/;
+block.item = edit(block.item, 'gm').replace(/bull/g, block.bullet).getRegex();
+block.list = edit(block.list).replace(/bull/g, block.bullet).replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))').replace('def', '\\n+(?=' + block.def.source + ')').getRegex();
+block._tag = 'address|article|aside|base|basefont|blockquote|body|caption' + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption' + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe' + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option' + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr' + '|track|ul';
+block._comment = /<!--(?!-?>)[\s\S]*?-->/;
+block.html = edit(block.html, 'i').replace('comment', block._comment).replace('tag', block._tag).replace('attribute', / +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/).getRegex();
+block.paragraph = edit(block._paragraph).replace('hr', block.hr).replace('heading', ' {0,3}#{1,6} +').replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs
+.replace('blockquote', ' {0,3}>').replace('fences', ' {0,3}(?:`{3,}|~{3,})[^`\\n]*\\n').replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
+.replace('html', '</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|!--)').replace('tag', block._tag) // pars can be interrupted by type (6) html blocks
+.getRegex();
+block.blockquote = edit(block.blockquote).replace('paragraph', block.paragraph).getRegex();
+/**
+ * Normal Block Grammar
+ */
+
+block.normal = merge({}, block);
+/**
+ * GFM Block Grammar
+ */
+
+block.gfm = merge({}, block.normal, {
+  nptable: /^ *([^|\n ].*\|.*)\n *([-:]+ *\|[-| :]*)(?:\n((?:.*[^>\n ].*(?:\n|$))*)\n*|$)/,
+  table: /^ *\|(.+)\n *\|?( *[-:]+[-| :]*)(?:\n((?: *[^>\n ].*(?:\n|$))*)\n*|$)/
+});
+/**
+ * Pedantic grammar (original John Gruber's loose markdown specification)
+ */
+
+block.pedantic = merge({}, block.normal, {
+  html: edit('^ *(?:comment *(?:\\n|\\s*$)' + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag
+  + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))').replace('comment', block._comment).replace(/tag/g, '(?!(?:' + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub' + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)' + '\\b)\\w+(?!:|[^\\w\\s@]*@)\\b').getRegex(),
+  def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/,
+  heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/,
+  fences: noopTest,
+  // fences not supported
+  paragraph: edit(block.normal._paragraph).replace('hr', block.hr).replace('heading', ' *#{1,6} *[^\n]').replace('lheading', block.lheading).replace('blockquote', ' {0,3}>').replace('|fences', '').replace('|list', '').replace('|html', '').getRegex()
+});
+/**
+ * Inline-Level Grammar
+ */
+
+const inline = {
+  escape: /^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/,
+  autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
+  url: noopTest,
+  tag: '^comment' + '|^</[a-zA-Z][\\w:-]*\\s*>' // self-closing tag
+  + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag
+  + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. <?php ?>
+  + '|^<![a-zA-Z]+\\s[\\s\\S]*?>' // declaration, e.g. <!DOCTYPE html>
+  + '|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>',
+  // CDATA section
+  link: /^!?\[(label)\]\(\s*(href)(?:\s+(title))?\s*\)/,
+  reflink: /^!?\[(label)\]\[(?!\s*\])((?:\\[\[\]]?|[^\[\]\\])+)\]/,
+  nolink: /^!?\[(?!\s*\])((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\](?:\[\])?/,
+  strong: /^__([^\s_])__(?!_)|^\*\*([^\s*])\*\*(?!\*)|^__([^\s][\s\S]*?[^\s])__(?!_)|^\*\*([^\s][\s\S]*?[^\s])\*\*(?!\*)/,
+  em: /^_([^\s_])_(?!_)|^\*([^\s*<\[])\*(?!\*)|^_([^\s<][\s\S]*?[^\s_])_(?!_|[^\spunctuation])|^_([^\s_<][\s\S]*?[^\s])_(?!_|[^\spunctuation])|^\*([^\s<"][\s\S]*?[^\s\*])\*(?!\*|[^\spunctuation])|^\*([^\s*"<\[][\s\S]*?[^\s])\*(?!\*)/,
+  code: /^(`+)([^`]|[^`][\s\S]*?[^`])\1(?!`)/,
+  br: /^( {2,}|\\)\n(?!\s*$)/,
+  del: noopTest,
+  text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*]|\b_|$)|[^ ](?= {2,}\n))|(?= {2,}\n))/
+}; // list of punctuation marks from common mark spec
+// without ` and ] to workaround Rule 17 (inline code blocks/links)
+
+inline._punctuation = '!"#$%&\'()*+,\\-./:;<=>?@\\[^_{|}~';
+inline.em = edit(inline.em).replace(/punctuation/g, inline._punctuation).getRegex();
+inline._escapes = /\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g;
+inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
+inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;
+inline.autolink = edit(inline.autolink).replace('scheme', inline._scheme).replace('email', inline._email).getRegex();
+inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
+inline.tag = edit(inline.tag).replace('comment', block._comment).replace('attribute', inline._attribute).getRegex();
+inline._label = /(?:\[[^\[\]]*\]|\\.|`[^`]*`|[^\[\]\\`])*?/;
+inline._href = /<(?:\\[<>]?|[^\s<>\\])*>|[^\s\x00-\x1f]*/;
+inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;
+inline.link = edit(inline.link).replace('label', inline._label).replace('href', inline._href).replace('title', inline._title).getRegex();
+inline.reflink = edit(inline.reflink).replace('label', inline._label).getRegex();
+/**
+ * Normal Inline Grammar
+ */
+
+inline.normal = merge({}, inline);
+/**
+ * Pedantic Inline Grammar
+ */
+
+inline.pedantic = merge({}, inline.normal, {
+  strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
+  em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/,
+  link: edit(/^!?\[(label)\]\((.*?)\)/).replace('label', inline._label).getRegex(),
+  reflink: edit(/^!?\[(label)\]\s*\[([^\]]*)\]/).replace('label', inline._label).getRegex()
+});
+/**
+ * GFM Inline Grammar
+ */
+
+inline.gfm = merge({}, inline.normal, {
+  escape: edit(inline.escape).replace('])', '~|])').getRegex(),
+  _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,
+  url: /^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,
+  _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
+  del: /^~+(?=\S)([\s\S]*?\S)~+/,
+  text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*~]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))|(?= {2,}\n|[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))/
+});
+inline.gfm.url = edit(inline.gfm.url, 'i').replace('email', inline.gfm._extended_email).getRegex();
+/**
+ * GFM + Line Breaks Inline Grammar
+ */
 
-  marked.Parser = Parser;
-  marked.parser = Parser.parse;
-  marked.Renderer = Renderer;
-  marked.TextRenderer = TextRenderer;
-  marked.Lexer = Lexer;
-  marked.lexer = Lexer.lex;
-  marked.InlineLexer = InlineLexer;
-  marked.inlineLexer = InlineLexer.output;
-  marked.Slugger = Slugger;
-  marked.parse = marked;
-
-  if (true) {
-    module.exports = marked;
-  } else {}
-})(this || (typeof window !== 'undefined' ? window : global));
-/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))
+inline.breaks = merge({}, inline.gfm, {
+  br: edit(inline.br).replace('{2,}', '*').getRegex(),
+  text: edit(inline.gfm.text).replace('\\b_', '\\b_| {2,}\\n').replace(/\{2,\}/g, '*').getRegex()
+});
+module.exports = {
+  block,
+  inline
+};
 
 /***/ }),
 
@@ -19853,75 +19690,72 @@ var render = function() {
       class: [
         "v-md-container",
         _vm.css,
-        { "v-md-auto-resize": _vm.height == "auto" }
-      ],
-      attrs: { id: _vm.uid("container") }
+        {
+          "v-md-auto-resize": _vm.height == "auto",
+          "v-md-fullscreen": _vm.fullScreen
+        }
+      ]
     },
     [
-      _c(
-        "div",
-        { staticClass: "v-md-toolbar", attrs: { id: _vm.uid("toolbar") } },
-        _vm._l(_vm.toolbars, function(group) {
-          return _c(
+      _vm.toolbars.length > 0
+        ? _c(
             "div",
-            { staticClass: "btn-group mr-3", attrs: { role: "group" } },
-            _vm._l(group, function(i) {
+            { staticClass: "v-md-toolbar" },
+            _vm._l(_vm.toolbars, function(group) {
               return _c(
-                "button",
-                {
-                  class: [_vm.buttonClass, { ready: i.ready }],
-                  attrs: { type: "button", id: _vm.uid(i.id), title: i.title },
-                  on: {
-                    click: function($event) {
-                      return _vm.command(i.cmd)
-                    }
-                  }
-                },
-                [
-                  _c("i", {
-                    class: i.className,
-                    attrs: { "aria-hidden": "true" }
-                  })
-                ]
+                "div",
+                { staticClass: "btn-group mr-3", attrs: { role: "group" } },
+                _vm._l(group, function(i) {
+                  return _c(
+                    "button",
+                    {
+                      class: "btn btn-" + _vm.theme,
+                      attrs: {
+                        type: "button",
+                        title: i.title,
+                        disabled: _vm.preview && !i.ready
+                      },
+                      on: {
+                        click: function($event) {
+                          return _vm.command(i.cmd)
+                        }
+                      }
+                    },
+                    [_c("i", { class: i.ico })]
+                  )
+                }),
+                0
               )
             }),
             0
           )
-        }),
-        0
-      ),
+        : _vm._e(),
       _vm._v(" "),
-      _c("div", { staticClass: "v-md-wrapper" }, [
-        _c("textarea", {
-          directives: [
-            {
-              name: "model",
-              rawName: "v-model",
-              value: _vm.value,
-              expression: "value"
-            }
-          ],
-          style: _vm.styles,
-          attrs: { id: _vm.uid("input"), name: _vm.name },
-          domProps: { value: _vm.value },
+      _c(
+        "div",
+        {
+          staticClass: "v-md-wrapper",
           on: {
-            input: function($event) {
-              if ($event.target.composing) {
-                return
-              }
-              _vm.value = $event.target.value
+            click: function($event) {
+              return _vm.editor.focus()
             }
           }
-        }),
-        _vm._v(" "),
-        _vm.preview
-          ? _c("div", {
-              staticClass: "v-md-preview",
-              attrs: { id: _vm.uid("html-preview") },
-              domProps: { innerHTML: _vm._s(_vm.html) }
-            })
-          : _vm._e()
-      ])
+        },
+        [
+          _c("textarea", {
+            staticClass: "v-md-editor",
+            style: _vm.styles,
+            attrs: { id: _vm.id }
+          }),
+          _vm._v(" "),
+          _vm.preview
+            ? _c("div", {
+                staticClass: "v-md-preview",
+                domProps: { innerHTML: _vm._s(_vm.html) }
+              })
+            : _vm._e()
+        ]
+      )
     ]
   )
 }
@@ -20015,7 +19849,7 @@ function normalizeComponent (
       // for template-only hot-reload because in that case the render fn doesn't
       // go through the normalizer
       options._injectStyles = hook
-      // register for functioal component in vue file
+      // register for functional component in vue file
       var originalRender = options.render
       options.render = function renderWithStyleInjection (h, context) {
         hook.call(context)
@@ -20037,34 +19871,6 @@ function normalizeComponent (
 }
 
 
-/***/ }),
-
-/***/ "./node_modules/webpack/buildin/global.js":
-/*!***********************************!*\
-  !*** (webpack)/buildin/global.js ***!
-  \***********************************/
-/*! no static exports found */
-/***/ (function(module, exports) {
-
-var g; // This works in non-strict mode
-
-g = function () {
-  return this;
-}();
-
-try {
-  // This works if eval is allowed (see CSP)
-  g = g || new Function("return this")();
-} catch (e) {
-  // This works if the window reference is available
-  if (typeof window === "object") g = window;
-} // g can still be undefined, but nothing to do about it...
-// We return undefined, instead of nothing here, so it's
-// easier to handle this case. if(!global) { ...}
-
-
-module.exports = g;
-
 /***/ }),
 
 /***/ "./src/editor.vue":
@@ -20156,7 +19962,13 @@ __webpack_require__.r(__webpack_exports__);
 
 "use strict";
 __webpack_require__.r(__webpack_exports__);
-/* harmony import */ var _editor_vue__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./editor.vue */ "./src/editor.vue");
+/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! codemirror/lib/codemirror.css */ "./node_modules/codemirror/lib/codemirror.css");
+/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__);
+/* harmony import */ var _index_css__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./index.css */ "./src/index.css");
+/* harmony import */ var _index_css__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_index_css__WEBPACK_IMPORTED_MODULE_1__);
+/* harmony import */ var _editor_vue__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./editor.vue */ "./src/editor.vue");
+
+
 
 var MarkdownEditor = {
   install: function install(Vue) {
@@ -20165,7 +19977,7 @@ var MarkdownEditor = {
     }
 
     Vue.__md_editor_installed = true;
-    Vue.component('markdown-editor', _editor_vue__WEBPACK_IMPORTED_MODULE_0__["default"]);
+    Vue.component('markdown-editor', _editor_vue__WEBPACK_IMPORTED_MODULE_2__["default"]);
   }
 };
 
@@ -20173,13 +19985,7 @@ if (typeof window !== 'undefined' && window.Vue) {
   Vue.use(MarkdownEditor);
 }
 
-/* harmony default export */ __webpack_exports__["default"] = (MarkdownEditor); // if (typeof exports == "object") {
-//     module.exports = MarkdownEditor;
-// } else if (typeof define == "function" && define.amd) {
-//     define([], function () { return MarkdownEditor; })
-// } else if (window.Vue) {
-//     Vue.use(MarkdownEditor);
-// }
+/* harmony default export */ __webpack_exports__["default"] = (MarkdownEditor);
 
 /***/ })
 
diff --git a/dist/v-markdown-editor.js.map b/dist/v-markdown-editor.js.map
index 5ad2581..0e7a1dd 100644
--- a/dist/v-markdown-editor.js.map
+++ b/dist/v-markdown-editor.js.map
@@ -1 +1 @@
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class=\"v-md-wrapper\">\n            <textarea :id=\"uid('input')\" v-model=\"value\" :name=\"name\" :style=\"styles\"></textarea>\n            <div class=\"v-md-preview\" :id=\"uid('html-preview')\" v-if=\"preview\" v-html=\"html\">\n            </div>\n        </div>\n\n    </div>\n</template>\n\n\n\n<script>\n\n    import 'codemirror/lib/codemirror.css';\n    import './index.css';\n\n    import Markdown from 'markdownparser';\n    import Marked from 'marked';\n    import CodeMirror from 'codemirror';\n    import 'codemirror/addon/display/fullscreen.js';\n    import 'codemirror/mode/markdown/markdown.js';\n    import 'codemirror/mode/gfm/gfm.js';\n    import 'codemirror/addon/display/placeholder.js';\n    import 'codemirror/addon/selection/active-line.js';\n\n\n    export default {\n        props: {\n\n            css: {\n                type: String\n            },\n            width: {\n                type: String,\n                default: '100%'\n            },\n            height: {\n                type: String,\n                default: '300px'\n            },\n            toolbar: {\n                type: String,\n                default: 'clean redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen'\n            },\n            extend: {\n                type: Object\n\n            },\n            buttons: {\n                type: Object,\n                default: function () {\n\n                    return {\n\n                        'bold': {\n                            title: 'Bold',\n                            className: 'far fa-bold',\n                            cmd: 'bold',\n                            hotkey: 'Ctrl-B'\n                        },\n\n                        'italic': {\n                            title: 'Italic',\n                            className: \"far fa-italic\",\n                            cmd: 'italic',\n                            hotkey: 'Ctrl-I'\n           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hotkey: 'Ctrl-Q'\n                        },\n                        'link': {\n                            title: 'Link',\n                            className: \"far fa-link\",\n                            cmd: 'link',\n                            hotkey: 'Ctrl-K'\n                        },\n                        'image': {\n                            title: 'Image',\n                            className: \"far fa-image\",\n                            cmd: 'image',\n                            hotkey: 'Ctrl-P'\n                        },\n                        \"fullscreen\": {\n                            cmd: \"fullscreen\",\n                            className: \"far fa-arrows-alt no-disable no-mobile\",\n                            title: \"Toggle Fullscreen\",\n                            hotkey: 'F11',\n                            ready: true\n                        },\n                        \"preview\": {\n                            cmd: \"preview\",\n           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            },\n\n                        \"redo\": {\n                            cmd: \"redo\",\n                            className: \"far fa-repeat\",\n                            title: \"Redo\",\n                            hotkey: 'Ctrl-Y'\n                        },\n\n                        \"bullist\": {\n                            cmd: \"bullist\",\n                            className: \"far fa-list-ul\",\n                            title: \"Generic List\",\n\n                        },\n                        \"numlist\": {\n                            cmd: \"numlist\",\n                            className: \"far fa-list-ol\",\n                            title: \"Numbered List\"\n                        }\n                    }\n\n                }\n            },\n            name: {\n                type: String,\n                default: 'html'\n            },\n            value: {\n                type: String,\n                default: '',\n                required: false\n            },\n\n            buttonClass: {\n                type: String,\n                default: 'btn btn-outline-secondary'\n            },\n\n\n\n            options: {\n                type: Object,\n                default: function () {\n                    return {\n                        mode: 'gfm',\n                        theme: \"elegent\",\n                        lineNumbers: false,\n                        styleActiveLine: false,\n                        styleSelectedText: true,\n                        lineWrapping: true,\n                        indentWithTabs: true,\n                        autoRefresh: true,\n                        tabSize: 2,\n                        indentUnit: 2,\n                    }\n                }\n            },\n        },\n\n        data() {\n            return {\n                id: 'v-md-editor-' + new Date().getTime(),\n                editor: null,\n                preview: false,\n                html: '',\n                toolbars: [],\n                shortcuts: {},\n\n            }\n        },\n\n        watch: {\n            value(val) {\n                if (val != this.editor.getValue()) {\n                    this.editor.setValue(val);\n                }\n\n            },\n        },\n\n        computed: {\n            styles() {\n                return {\n                    width: isNaN(this.width) ? this.width : this.width + '%',\n                    height: isNaN(this.height) ? this.height : this.height + '%'\n                }\n            },\n\n        },\n\n        methods: {\n            isEmpty: function (s) {\n                return s === null || s === undefined ? true : /^[\\s\\xa0]*$/.test(s);\n            },\n            isUrl: function (s) {\n                return this.isEmpty(s) ? false : s.match(/((http(s)?):\\/\\/[\\w\\.\\/\\-=?#]+)/gi);\n            },\n            format() {\n                var a = arguments[0];\n                for (var i = 1; i <= arguments.length; i++) {\n                    a = a.replace(/%[a-z]/, arguments[i]);\n                }\n                return a; // Make chainable\n\n            },\n            uid(name) {\n                return this.format('%s-%s', this.id, name);\n            },\n            obj(name) {\n                return jQuery('#' + this.uid(name));\n            },\n\n            _toggleBlock(type, start, end) {\n\n                end = this.isEmpty(end) ? start : end;\n                var ed = this.editor;\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var text;\n                var stat = this.state();\n\n                if (stat[type]) {\n\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    if (type == \"bold\") {\n                        start = start.replace(/(\\*\\*|__)(?![\\s\\S]*(\\*\\*|__))/, \"\");\n                        end = end.replace(/(\\*\\*|__)/, \"\");\n                    } else if (type == \"italic\") {\n                        start = start.replace(/(\\*|_)(?![\\s\\S]*(\\*|_))/, \"\");\n                        end = end.replace(/(\\*|_)/, \"\");\n                    } else if (type == \"strikethrough\") {\n                        start = start.replace(/(\\*\\*|~~)(?![\\s\\S]*(\\*\\*|~~))/, \"\");\n                        end = end.replace(/(\\*\\*|~~)/, \"\");\n                    }\n                    ed.replaceRange(start + end, {\n                        line: startPoint.line,\n                        ch: 0\n                    }, {\n                        line: startPoint.line,\n                        ch: 99999999999999\n                    });\n\n                    if (type == \"bold\" || type == \"strikethrough\") {\n                        startPoint.ch -= 2;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 2;\n                        }\n                    } else if (type == \"italic\") {\n                        startPoint.ch -= 1;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 1;\n                        }\n                    }\n                } else {\n\n                    text = ed.getSelection();\n                    if (type == \"bold\") {\n                        text = text.split(\"**\").join(\"\");\n                        text = text.split(\"__\").join(\"\");\n                    } else if (type == \"italic\") {\n                        text = text.split(\"*\").join(\"\");\n                        text = text.split(\"_\").join(\"\");\n                    } else if (type == \"strikethrough\") {\n                        text = text.split(\"~~\").join(\"\");\n                    }\n                    ed.replaceSelection(start + text + end);\n\n                    startPoint.ch += start.length;\n                    endPoint.ch = startPoint.ch + text.length;\n                }\n\n                ed.setSelection(startPoint, endPoint);\n            },\n\n            _toggleLine(name) {\n                var ed = this.editor;\n                var stat = this.state();\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var repl = {\n                    \"quote\": /^(\\s*)\\>\\s+/,\n                    \"bullist\": /^(\\s*)(\\*|\\-|\\+)\\s+/,\n                    \"numlist\": /^(\\s*)\\d+\\.\\s+/\n                };\n                var map = {\n                    \"quote\": \"> \",\n                    \"bullist\": \"* \",\n                    \"numlist\": \"1. \"\n                };\n                for (var i = startPoint.line; i <= endPoint.line; i++) {\n                    (function (i) {\n                        var text = ed.getLine(i);\n                        if (stat[name]) {\n                            text = text.replace(repl[name], \"$1\");\n                        } else {\n                            text = map[name] + text;\n                        }\n                        ed.replaceRange(text, {\n                            line: i, ch: 0\n                        }, {\n                            line: i, ch: 99999999999999\n                        });\n                    })(i);\n                }\n\n            },\n\n            state(pos) {\n                pos = pos || this.editor.getCursor(\"start\");\n                var stat = this.editor.getTokenAt(pos);\n                if (!stat.type) return {};\n\n                var types = stat.type.split(\" \");\n\n                // console.log(types);\n\n                var ret = {},\n                    data, text;\n                for (var i = 0; i < types.length; i++) {\n                    data = types[i];\n                    if (data === \"strong\") {\n                        ret.bold = true;\n                    } else if (data === \"variable-2\") {\n                        text = this.editor.getLine(pos.line);\n                        if (/^\\s*\\d+\\.\\s/.test(text)) {\n                            ret[\"numlist\"] = true;\n                        } else {\n                            ret[\"bullist\"] = true;\n                        }\n                    } else if (data === \"atom\") {\n                        ret.quote = true;\n                    } else if (data === \"em\") {\n                        ret.italic = true;\n                    } else if (data === \"quote\") {\n                        ret.quote = true;\n                    } else if (data === \"strikethrough\") {\n                        ret.strikethrough = true;\n                    } else if (data === \"comment\") {\n                        ret.code = true;\n                    } else if (data === \"link\" || data === \"url\") {\n                        ret.link = true;\n                    } else if (data === \"image\") {\n                        ret.image = true;\n                    } else if (data.match(/^header(\\-[1-6])?$/)) {\n                        ret[data.replace(\"header\", \"heading\")] = true;\n                    }\n                }\n                return ret;\n            },\n\n            _replaceSelection(active, startEnd, val) {\n                var ed = this.editor;\n\n                var text;\n                var start = startEnd[0];\n                var end = startEnd[1];\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                if (val) {\n                    Object.keys(val).forEach(key => {\n                        start = start.replace('#' + key + '#', val[key]);\n                        end = end.replace('#' + key + '#', val[key]);\n                    });\n                }\n\n                if (active) {\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    ed.replaceRange(start + end, {\n                        line: startPoint.line,\n                        ch: 0\n                    });\n                } else {\n                    // text = ed.getSelection();\n                    // ed.replaceSelection(start + text + end);\n                    ed.replaceSelection(start + end);\n\n                    startPoint.ch += start.length;\n                    if (startPoint !== endPoint) {\n                        endPoint.ch += start.length;\n                    }\n                }\n                ed.setSelection(startPoint, endPoint);\n                ed.focus();\n\n            },\n\n            drawImage(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.image, [\"![#title#](\", '#url# \"#title#\")'], obj);\n            },\n\n            drawLink(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.link, ['[#title#]', '(#url# \"#title#\")'], obj);\n            },\n\n            command(key) {\n\n                var ed = this.editor;\n                var text = ed.getSelection();\n                var stat = this.state();\n\n                this.$root.$emit('markdown-editor:' + key, this);\n\n                switch (key) {\n                    case 'undo':\n                        ed.undo();\n                        break;\n\n                    case 'redo':\n                        ed.redo();\n                        break;\n\n                    case 'bold':\n                        this._toggleBlock('bold', '**');\n                        break;\n\n                    case 'italic':\n                        this._toggleBlock('italic', '*');\n                        break;\n\n                    case 'strikethrough':\n                        this._toggleBlock('strikethrough', '~~');\n                        break;\n\n                    case 'code':\n                        this._toggleBlock('code', '```');\n                        break;\n\n\n                    case 'heading':\n                        ed.replaceSelection('\\n### ' + text);\n                        break;\n\n                    case 'clipboard':\n                        this.obj('modal-clipboard').modal('show');\n                        break;\n\n                    case 'image':\n                        // this.obj('modal-image').modal('show');\n\n                        var url = prompt(\"Please enter image url\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : \"This is image title\";\n                            this.drawImage({ title: title, url: url });\n                        }\n                        break;\n\n                    case 'link':\n                        //this.obj('modal-link').modal('show');\n\n                        var url = prompt(\"Please enter link\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : url;\n                            this.drawLink({ title: title, url: url });\n\n                        }\n\n                        break;\n\n                    case 'quote':\n                        this._toggleLine('quote');\n                        break;\n\n                    case 'quote':\n                        this._toggleLine('quote');\n                        break;\n\n                    case 'numlist':\n                        this._toggleLine('numlist');\n                        break;\n\n                    case 'bullist':\n                        this._toggleLine('bullist');\n                        break;\n\n                    case 'preview':\n\n                        ///var md = new MarkdownIt({ typographer: true, breaks: true, quotes: '“”‘’' });\n\n                        this.html = Marked(ed.getValue(), { breaks: true });\n                        this.preview ^= true;\n\n                        this.obj('toolbar').find('.btn:not(\".ready\")').prop('disabled', this.preview);\n\n                        break;\n\n                    case 'fullscreen':\n\n                        this.obj('container').toggleClass('v-md-fullscreen');\n                        this.obj('fullscreen').toggleClass('active');\n                        ed.setOption(\"fullScreen\", !ed.getOption(\"fullScreen\"));\n\n                        break;\n\n                    case 'clean':\n                        text = Markdown.parse(text);\n                        ed.replaceSelection(text);\n\n                        break;\n\n                }\n\n                ed.focus();\n\n            },\n\n\n\n\n\n            build() {\n\n                if (!jQuery) {\n\n                    console.error(\"Must required jQuery!\");\n                    return;\n                }\n\n                if (this.isEmpty(this.toolbar)) {\n                    console.error(\"You must set toolbar!\");\n                    return;\n                }\n\n                if (this.__rendered) return;\n\n                var _t = this;\n\n                this.buttons = Object.assign(this.buttons, this.extend);\n\n                var btns = _t.toolbar.toLowerCase().split(/(\\s)/).filter(function (w) {\n                    return !_t.isEmpty(w);\n                });\n\n\n                var group = [];\n                for (var i = 0; i < btns.length; i++) {\n                    var btn = btns[i];\n                    var obj = _t.buttons[btn];\n                    if (obj) {\n                        // obj.cmd = typeof obj.cmd ==='function'? obj.cmd: this.command(obj.cmd);\n                        obj.id = btn;\n                        group.push(obj);\n\n                    }\n                    if (btn === '|' || i == btns.length - 1) {\n                        this.toolbars.push(group);\n                        group = [];\n                    }\n                }\n\n\n                var o = Object.assign({}, { extraKeys: _t.shortcuts, initialValue: _t.value }, _t.options);\n                var el = document.getElementById(_t.id + '-input');\n                _t.editor = CodeMirror.fromTextArea(el, o);\n                _t.editor.on(\"change\", function (ed) {\n                    //_t.editor.save();                    \n                    _t.$emit('input', ed.getValue());\n                    //_t.value = ed.getValue();\n                });\n\n                _t.editor.on(\"cursorActivity\", function () {\n                    var stat = _t.state();\n\n                    _t.obj('toolbar').find('.btn.active:not(.ready)').removeClass('active');\n                    Object.keys(stat).forEach(key => {\n                        _t.obj(key).addClass('active');\n\n                    });\n                });\n\n                _t.__rendered = true;\n\n\n            }\n        },\n        mounted() {\n\n            this.$nextTick(() => { this.build(); });\n\n        },\n        destroyed() {\n            this.editor = null;\n        }\n\n    }\n\n</script>","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n\n  CodeMirror.defineOption(\"fullScreen\", false, function(cm, val, old) {\n    if (old == CodeMirror.Init) old = false;\n    if (!old == !val) return;\n    if (val) setFullscreen(cm);\n    else setNormal(cm);\n  });\n\n  function setFullscreen(cm) {\n    var wrap = cm.getWrapperElement();\n    cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,\n                                  width: wrap.style.width, height: wrap.style.height};\n    wrap.style.width = \"\";\n    wrap.style.height = \"auto\";\n    wrap.className += \" CodeMirror-fullscreen\";\n    document.documentElement.style.overflow = \"hidden\";\n    cm.refresh();\n  }\n\n  function setNormal(cm) {\n    var wrap = cm.getWrapperElement();\n    wrap.className = wrap.className.replace(/\\s*CodeMirror-fullscreen\\b/, \"\");\n    document.documentElement.style.overflow = \"\";\n    var info = cm.state.fullScreenRestore;\n    wrap.style.width = info.width; wrap.style.height = info.height;\n    window.scrollTo(info.scrollLeft, info.scrollTop);\n    cm.refresh();\n  }\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  CodeMirror.defineOption(\"placeholder\", \"\", function(cm, val, old) {\n    var prev = old && old != CodeMirror.Init;\n    if (val && !prev) {\n      cm.on(\"blur\", onBlur);\n      cm.on(\"change\", onChange);\n      cm.on(\"swapDoc\", onChange);\n      onChange(cm);\n    } else if (!val && prev) {\n      cm.off(\"blur\", onBlur);\n      cm.off(\"change\", onChange);\n      cm.off(\"swapDoc\", onChange);\n      clearPlaceholder(cm);\n      var wrapper = cm.getWrapperElement();\n      wrapper.className = wrapper.className.replace(\" CodeMirror-empty\", \"\");\n    }\n\n    if (val && !cm.hasFocus()) onBlur(cm);\n  });\n\n  function clearPlaceholder(cm) {\n    if (cm.state.placeholder) {\n      cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);\n      cm.state.placeholder = null;\n    }\n  }\n  function setPlaceholder(cm) {\n    clearPlaceholder(cm);\n    var elt = cm.state.placeholder = document.createElement(\"pre\");\n    elt.style.cssText = \"height: 0; overflow: visible\";\n    elt.style.direction = cm.getOption(\"direction\");\n    elt.className = \"CodeMirror-placeholder CodeMirror-line-like\";\n    var placeHolder = cm.getOption(\"placeholder\")\n    if (typeof placeHolder == \"string\") placeHolder = document.createTextNode(placeHolder)\n    elt.appendChild(placeHolder)\n    cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);\n  }\n\n  function onBlur(cm) {\n    if (isEmpty(cm)) setPlaceholder(cm);\n  }\n  function onChange(cm) {\n    var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);\n    wrapper.className = wrapper.className.replace(\" CodeMirror-empty\", \"\") + (empty ? \" CodeMirror-empty\" : \"\");\n\n    if (empty) setPlaceholder(cm);\n    else clearPlaceholder(cm);\n  }\n\n  function isEmpty(cm) {\n    return (cm.lineCount() === 1) && (cm.getLine(0) === \"\");\n  }\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n// Utility function that allows modes to be combined. The mode given\n// as the base argument takes care of most of the normal mode\n// functionality, but a second (typically simple) mode is used, which\n// can override the style of text. Both modes get to parse all of the\n// text, but when both assign a non-null style to a piece of code, the\n// overlay wins, unless the combine argument was true and not overridden,\n// or state.overlay.combineTokens was true, in which case the styles are\n// combined.\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nCodeMirror.overlayMode = function(base, overlay, combine) {\n  return {\n    startState: function() {\n      return {\n        base: CodeMirror.startState(base),\n        overlay: CodeMirror.startState(overlay),\n        basePos: 0, baseCur: null,\n        overlayPos: 0, overlayCur: null,\n        streamSeen: null\n      };\n    },\n    copyState: function(state) {\n      return {\n        base: CodeMirror.copyState(base, state.base),\n        overlay: CodeMirror.copyState(overlay, state.overlay),\n        basePos: state.basePos, baseCur: null,\n        overlayPos: state.overlayPos, overlayCur: null\n      };\n    },\n\n    token: function(stream, state) {\n      if (stream != state.streamSeen ||\n          Math.min(state.basePos, state.overlayPos) < stream.start) {\n        state.streamSeen = stream;\n        state.basePos = state.overlayPos = stream.start;\n      }\n\n      if (stream.start == state.basePos) {\n        state.baseCur = base.token(stream, state.base);\n        state.basePos = stream.pos;\n      }\n      if (stream.start == state.overlayPos) {\n        stream.pos = stream.start;\n        state.overlayCur = overlay.token(stream, state.overlay);\n        state.overlayPos = stream.pos;\n      }\n      stream.pos = Math.min(state.basePos, state.overlayPos);\n\n      // state.overlay.combineTokens always takes precedence over combine,\n      // unless set to null\n      if (state.overlayCur == null) return state.baseCur;\n      else if (state.baseCur != null &&\n               state.overlay.combineTokens ||\n               combine && state.overlay.combineTokens == null)\n        return state.baseCur + \" \" + state.overlayCur;\n      else return state.overlayCur;\n    },\n\n    indent: base.indent && function(state, textAfter, line) {\n      return base.indent(state.base, textAfter, line);\n    },\n    electricChars: base.electricChars,\n\n    innerMode: function(state) { return {state: state.base, mode: base}; },\n\n    blankLine: function(state) {\n      var baseToken, overlayToken;\n      if (base.blankLine) baseToken = base.blankLine(state.base);\n      if (overlay.blankLine) overlayToken = overlay.blankLine(state.overlay);\n\n      return overlayToken == null ?\n        baseToken :\n        (combine && baseToken != null ? baseToken + \" \" + overlayToken : overlayToken);\n    }\n  };\n};\n\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n  var WRAP_CLASS = \"CodeMirror-activeline\";\n  var BACK_CLASS = \"CodeMirror-activeline-background\";\n  var GUTT_CLASS = \"CodeMirror-activeline-gutter\";\n\n  CodeMirror.defineOption(\"styleActiveLine\", false, function(cm, val, old) {\n    var prev = old == CodeMirror.Init ? false : old;\n    if (val == prev) return\n    if (prev) {\n      cm.off(\"beforeSelectionChange\", selectionChange);\n      clearActiveLines(cm);\n      delete cm.state.activeLines;\n    }\n    if (val) {\n      cm.state.activeLines = [];\n      updateActiveLines(cm, cm.listSelections());\n      cm.on(\"beforeSelectionChange\", selectionChange);\n    }\n  });\n\n  function clearActiveLines(cm) {\n    for (var i = 0; i < cm.state.activeLines.length; i++) {\n      cm.removeLineClass(cm.state.activeLines[i], \"wrap\", WRAP_CLASS);\n      cm.removeLineClass(cm.state.activeLines[i], \"background\", BACK_CLASS);\n      cm.removeLineClass(cm.state.activeLines[i], \"gutter\", GUTT_CLASS);\n    }\n  }\n\n  function sameArray(a, b) {\n    if (a.length != b.length) return false;\n    for (var i = 0; i < a.length; i++)\n      if (a[i] != b[i]) return false;\n    return true;\n  }\n\n  function updateActiveLines(cm, ranges) {\n    var active = [];\n    for (var i = 0; i < ranges.length; i++) {\n      var range = ranges[i];\n      var option = cm.getOption(\"styleActiveLine\");\n      if (typeof option == \"object\" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty())\n        continue\n      var line = cm.getLineHandleVisualStart(range.head.line);\n      if (active[active.length - 1] != line) active.push(line);\n    }\n    if (sameArray(cm.state.activeLines, active)) return;\n    cm.operation(function() {\n      clearActiveLines(cm);\n      for (var i = 0; i < active.length; i++) {\n        cm.addLineClass(active[i], \"wrap\", WRAP_CLASS);\n        cm.addLineClass(active[i], \"background\", BACK_CLASS);\n        cm.addLineClass(active[i], \"gutter\", GUTT_CLASS);\n      }\n      cm.state.activeLines = active;\n    });\n  }\n\n  function selectionChange(cm, sel) {\n    updateActiveLines(cm, sel.ranges);\n  }\n});\n","// extracted by mini-css-extract-plugin","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n// This is CodeMirror (https://codemirror.net), a code editor\n// implemented in JavaScript on top of the browser's DOM.\n//\n// You can find some technical background for some of the code below\n// at http://marijnhaverbeke.nl/blog/#cm-internals .\n\n(function (global, factory) {\n  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n  typeof define === 'function' && define.amd ? define(factory) :\n  (global.CodeMirror = factory());\n}(this, (function () { 'use strict';\n\n  // Kludges for bugs and behavior differences that can't be feature\n  // detected are enabled based on userAgent etc sniffing.\n  var userAgent = navigator.userAgent;\n  var platform = navigator.platform;\n\n  var gecko = /gecko\\/\\d/i.test(userAgent);\n  var ie_upto10 = /MSIE \\d/.test(userAgent);\n  var ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(userAgent);\n  var edge = /Edge\\/(\\d+)/.exec(userAgent);\n  var ie = ie_upto10 || ie_11up || edge;\n  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);\n  var webkit = !edge && /WebKit\\//.test(userAgent);\n  var qtwebkit = webkit && /Qt\\/\\d+\\.\\d+/.test(userAgent);\n  var chrome = !edge && /Chrome\\//.test(userAgent);\n  var presto = /Opera\\//.test(userAgent);\n  var safari = /Apple Computer/.test(navigator.vendor);\n  var mac_geMountainLion = /Mac OS X 1\\d\\D([8-9]|\\d\\d)\\D/.test(userAgent);\n  var phantom = /PhantomJS/.test(userAgent);\n\n  var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\\/\\w+/.test(userAgent);\n  var android = /Android/.test(userAgent);\n  // This is woefully incomplete. Suggestions for alternative methods welcome.\n  var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);\n  var mac = ios || /Mac/.test(platform);\n  var chromeOS = /\\bCrOS\\b/.test(userAgent);\n  var windows = /win/i.test(platform);\n\n  var presto_version = presto && userAgent.match(/Version\\/(\\d*\\.\\d*)/);\n  if (presto_version) { presto_version = Number(presto_version[1]); }\n  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }\n  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X\n  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));\n  var captureRightClick = gecko || (ie && ie_version >= 9);\n\n  function classTest(cls) { return new RegExp(\"(^|\\\\s)\" + cls + \"(?:$|\\\\s)\\\\s*\") }\n\n  var rmClass = function(node, cls) {\n    var current = node.className;\n    var match = classTest(cls).exec(current);\n    if (match) {\n      var after = current.slice(match.index + match[0].length);\n      node.className = current.slice(0, match.index) + (after ? match[1] + after : \"\");\n    }\n  };\n\n  function removeChildren(e) {\n    for (var count = e.childNodes.length; count > 0; --count)\n      { e.removeChild(e.firstChild); }\n    return e\n  }\n\n  function removeChildrenAndAdd(parent, e) {\n    return removeChildren(parent).appendChild(e)\n  }\n\n  function elt(tag, content, className, style) {\n    var e = document.createElement(tag);\n    if (className) { e.className = className; }\n    if (style) { e.style.cssText = style; }\n    if (typeof content == \"string\") { e.appendChild(document.createTextNode(content)); }\n    else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }\n    return e\n  }\n  // wrapper for elt, which removes the elt from the accessibility tree\n  function eltP(tag, content, className, style) {\n    var e = elt(tag, content, className, style);\n    e.setAttribute(\"role\", \"presentation\");\n    return e\n  }\n\n  var range;\n  if (document.createRange) { range = function(node, start, end, endNode) {\n    var r = document.createRange();\n    r.setEnd(endNode || node, end);\n    r.setStart(node, start);\n    return r\n  }; }\n  else { range = function(node, start, end) {\n    var r = document.body.createTextRange();\n    try { r.moveToElementText(node.parentNode); }\n    catch(e) { return r }\n    r.collapse(true);\n    r.moveEnd(\"character\", end);\n    r.moveStart(\"character\", start);\n    return r\n  }; }\n\n  function contains(parent, child) {\n    if (child.nodeType == 3) // Android browser always returns false when child is a textnode\n      { child = child.parentNode; }\n    if (parent.contains)\n      { return parent.contains(child) }\n    do {\n      if (child.nodeType == 11) { child = child.host; }\n      if (child == parent) { return true }\n    } while (child = child.parentNode)\n  }\n\n  function activeElt() {\n    // IE and Edge may throw an \"Unspecified Error\" when accessing document.activeElement.\n    // IE < 10 will throw when accessed while the page is loading or in an iframe.\n    // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.\n    var activeElement;\n    try {\n      activeElement = document.activeElement;\n    } catch(e) {\n      activeElement = document.body || null;\n    }\n    while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)\n      { activeElement = activeElement.shadowRoot.activeElement; }\n    return activeElement\n  }\n\n  function addClass(node, cls) {\n    var current = node.className;\n    if (!classTest(cls).test(current)) { node.className += (current ? \" \" : \"\") + cls; }\n  }\n  function joinClasses(a, b) {\n    var as = a.split(\" \");\n    for (var i = 0; i < as.length; i++)\n      { if (as[i] && !classTest(as[i]).test(b)) { b += \" \" + as[i]; } }\n    return b\n  }\n\n  var selectInput = function(node) { node.select(); };\n  if (ios) // Mobile Safari apparently has a bug where select() is broken.\n    { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }\n  else if (ie) // Suppress mysterious IE10 errors\n    { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }\n\n  function bind(f) {\n    var args = Array.prototype.slice.call(arguments, 1);\n    return function(){return f.apply(null, args)}\n  }\n\n  function copyObj(obj, target, overwrite) {\n    if (!target) { target = {}; }\n    for (var prop in obj)\n      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))\n        { target[prop] = obj[prop]; } }\n    return target\n  }\n\n  // Counts the column offset in a string, taking tabs into account.\n  // Used mostly to find indentation.\n  function countColumn(string, end, tabSize, startIndex, startValue) {\n    if (end == null) {\n      end = string.search(/[^\\s\\u00a0]/);\n      if (end == -1) { end = string.length; }\n    }\n    for (var i = startIndex || 0, n = startValue || 0;;) {\n      var nextTab = string.indexOf(\"\\t\", i);\n      if (nextTab < 0 || nextTab >= end)\n        { return n + (end - i) }\n      n += nextTab - i;\n      n += tabSize - (n % tabSize);\n      i = nextTab + 1;\n    }\n  }\n\n  var Delayed = function() {\n    this.id = null;\n    this.f = null;\n    this.time = 0;\n    this.handler = bind(this.onTimeout, this);\n  };\n  Delayed.prototype.onTimeout = function (self) {\n    self.id = 0;\n    if (self.time <= +new Date) {\n      self.f();\n    } else {\n      setTimeout(self.handler, self.time - +new Date);\n    }\n  };\n  Delayed.prototype.set = function (ms, f) {\n    this.f = f;\n    var time = +new Date + ms;\n    if (!this.id || time < this.time) {\n      clearTimeout(this.id);\n      this.id = setTimeout(this.handler, ms);\n      this.time = time;\n    }\n  };\n\n  function indexOf(array, elt) {\n    for (var i = 0; i < array.length; ++i)\n      { if (array[i] == elt) { return i } }\n    return -1\n  }\n\n  // Number of pixels added to scroller and sizer to hide scrollbar\n  var scrollerGap = 30;\n\n  // Returned or thrown by various protocols to signal 'I'm not\n  // handling this'.\n  var Pass = {toString: function(){return \"CodeMirror.Pass\"}};\n\n  // Reused option objects for setSelection & friends\n  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: \"*mouse\"}, sel_move = {origin: \"+move\"};\n\n  // The inverse of countColumn -- find the offset that corresponds to\n  // a particular column.\n  function findColumn(string, goal, tabSize) {\n    for (var pos = 0, col = 0;;) {\n      var nextTab = string.indexOf(\"\\t\", pos);\n      if (nextTab == -1) { nextTab = string.length; }\n      var skipped = nextTab - pos;\n      if (nextTab == string.length || col + skipped >= goal)\n        { return pos + Math.min(skipped, goal - col) }\n      col += nextTab - pos;\n      col += tabSize - (col % tabSize);\n      pos = nextTab + 1;\n      if (col >= goal) { return pos }\n    }\n  }\n\n  var spaceStrs = [\"\"];\n  function spaceStr(n) {\n    while (spaceStrs.length <= n)\n      { spaceStrs.push(lst(spaceStrs) + \" \"); }\n    return spaceStrs[n]\n  }\n\n  function lst(arr) { return arr[arr.length-1] }\n\n  function map(array, f) {\n    var out = [];\n    for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }\n    return out\n  }\n\n  function insertSorted(array, value, score) {\n    var pos = 0, priority = score(value);\n    while (pos < array.length && score(array[pos]) <= priority) { pos++; }\n    array.splice(pos, 0, value);\n  }\n\n  function nothing() {}\n\n  function createObj(base, props) {\n    var inst;\n    if (Object.create) {\n      inst = Object.create(base);\n    } else {\n      nothing.prototype = base;\n      inst = new nothing();\n    }\n    if (props) { copyObj(props, inst); }\n    return inst\n  }\n\n  var nonASCIISingleCaseWordChar = /[\\u00df\\u0587\\u0590-\\u05f4\\u0600-\\u06ff\\u3040-\\u309f\\u30a0-\\u30ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\uac00-\\ud7af]/;\n  function isWordCharBasic(ch) {\n    return /\\w/.test(ch) || ch > \"\\x80\" &&\n      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))\n  }\n  function isWordChar(ch, helper) {\n    if (!helper) { return isWordCharBasic(ch) }\n    if (helper.source.indexOf(\"\\\\w\") > -1 && isWordCharBasic(ch)) { return true }\n    return helper.test(ch)\n  }\n\n  function isEmpty(obj) {\n    for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }\n    return true\n  }\n\n  // Extending unicode characters. A series of a non-extending char +\n  // any number of extending chars is treated as a single unit as far\n  // as editing and measuring is concerned. This is not fully correct,\n  // since some scripts/fonts/browsers also treat other configurations\n  // of code points as a group.\n  var extendingChars = /[\\u0300-\\u036f\\u0483-\\u0489\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u064b-\\u065e\\u0670\\u06d6-\\u06dc\\u06de-\\u06e4\\u06e7\\u06e8\\u06ea-\\u06ed\\u0711\\u0730-\\u074a\\u07a6-\\u07b0\\u07eb-\\u07f3\\u0816-\\u0819\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0900-\\u0902\\u093c\\u0941-\\u0948\\u094d\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09bc\\u09be\\u09c1-\\u09c4\\u09cd\\u09d7\\u09e2\\u09e3\\u0a01\\u0a02\\u0a3c\\u0a41\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a70\\u0a71\\u0a75\\u0a81\\u0a82\\u0abc\\u0ac1-\\u0ac5\\u0ac7\\u0ac8\\u0acd\\u0ae2\\u0ae3\\u0b01\\u0b3c\\u0b3e\\u0b3f\\u0b41-\\u0b44\\u0b4d\\u0b56\\u0b57\\u0b62\\u0b63\\u0b82\\u0bbe\\u0bc0\\u0bcd\\u0bd7\\u0c3e-\\u0c40\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62\\u0c63\\u0cbc\\u0cbf\\u0cc2\\u0cc6\\u0ccc\\u0ccd\\u0cd5\\u0cd6\\u0ce2\\u0ce3\\u0d3e\\u0d41-\\u0d44\\u0d4d\\u0d57\\u0d62\\u0d63\\u0dca\\u0dcf\\u0dd2-\\u0dd4\\u0dd6\\u0ddf\\u0e31\\u0e34-\\u0e3a\\u0e47-\\u0e4e\\u0eb1\\u0eb4-\\u0eb9\\u0ebb\\u0ebc\\u0ec8-\\u0ecd\\u0f18\\u0f19\\u0f35\\u0f37\\u0f39\\u0f71-\\u0f7e\\u0f80-\\u0f84\\u0f86\\u0f87\\u0f90-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u102d-\\u1030\\u1032-\\u1037\\u1039\\u103a\\u103d\\u103e\\u1058\\u1059\\u105e-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108d\\u109d\\u135f\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17b7-\\u17bd\\u17c6\\u17c9-\\u17d3\\u17dd\\u180b-\\u180d\\u18a9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193b\\u1a17\\u1a18\\u1a56\\u1a58-\\u1a5e\\u1a60\\u1a62\\u1a65-\\u1a6c\\u1a73-\\u1a7c\\u1a7f\\u1b00-\\u1b03\\u1b34\\u1b36-\\u1b3a\\u1b3c\\u1b42\\u1b6b-\\u1b73\\u1b80\\u1b81\\u1ba2-\\u1ba5\\u1ba8\\u1ba9\\u1c2c-\\u1c33\\u1c36\\u1c37\\u1cd0-\\u1cd2\\u1cd4-\\u1ce0\\u1ce2-\\u1ce8\\u1ced\\u1dc0-\\u1de6\\u1dfd-\\u1dff\\u200c\\u200d\\u20d0-\\u20f0\\u2cef-\\u2cf1\\u2de0-\\u2dff\\u302a-\\u302f\\u3099\\u309a\\ua66f-\\ua672\\ua67c\\ua67d\\ua6f0\\ua6f1\\ua802\\ua806\\ua80b\\ua825\\ua826\\ua8c4\\ua8e0-\\ua8f1\\ua926-\\ua92d\\ua947-\\ua951\\ua980-\\ua982\\ua9b3\\ua9b6-\\ua9b9\\ua9bc\\uaa29-\\uaa2e\\uaa31\\uaa32\\uaa35\\uaa36\\uaa43\\uaa4c\\uaab0\\uaab2-\\uaab4\\uaab7\\uaab8\\uaabe\\uaabf\\uaac1\\uabe5\\uabe8\\uabed\\udc00-\\udfff\\ufb1e\\ufe00-\\ufe0f\\ufe20-\\ufe26\\uff9e\\uff9f]/;\n  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }\n\n  // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.\n  function skipExtendingChars(str, pos, dir) {\n    while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }\n    return pos\n  }\n\n  // Returns the value from the range [`from`; `to`] that satisfies\n  // `pred` and is closest to `from`. Assumes that at least `to`\n  // satisfies `pred`. Supports `from` being greater than `to`.\n  function findFirst(pred, from, to) {\n    // At any point we are certain `to` satisfies `pred`, don't know\n    // whether `from` does.\n    var dir = from > to ? -1 : 1;\n    for (;;) {\n      if (from == to) { return from }\n      var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);\n      if (mid == from) { return pred(mid) ? from : to }\n      if (pred(mid)) { to = mid; }\n      else { from = mid + dir; }\n    }\n  }\n\n  // BIDI HELPERS\n\n  function iterateBidiSections(order, from, to, f) {\n    if (!order) { return f(from, to, \"ltr\", 0) }\n    var found = false;\n    for (var i = 0; i < order.length; ++i) {\n      var part = order[i];\n      if (part.from < to && part.to > from || from == to && part.to == from) {\n        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? \"rtl\" : \"ltr\", i);\n        found = true;\n      }\n    }\n    if (!found) { f(from, to, \"ltr\"); }\n  }\n\n  var bidiOther = null;\n  function getBidiPartAt(order, ch, sticky) {\n    var found;\n    bidiOther = null;\n    for (var i = 0; i < order.length; ++i) {\n      var cur = order[i];\n      if (cur.from < ch && cur.to > ch) { return i }\n      if (cur.to == ch) {\n        if (cur.from != cur.to && sticky == \"before\") { found = i; }\n        else { bidiOther = i; }\n      }\n      if (cur.from == ch) {\n        if (cur.from != cur.to && sticky != \"before\") { found = i; }\n        else { bidiOther = i; }\n      }\n    }\n    return found != null ? found : bidiOther\n  }\n\n  // Bidirectional ordering algorithm\n  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm\n  // that this (partially) implements.\n\n  // One-char codes used for character types:\n  // L (L):   Left-to-Right\n  // R (R):   Right-to-Left\n  // r (AL):  Right-to-Left Arabic\n  // 1 (EN):  European Number\n  // + (ES):  European Number Separator\n  // % (ET):  European Number Terminator\n  // n (AN):  Arabic Number\n  // , (CS):  Common Number Separator\n  // m (NSM): Non-Spacing Mark\n  // b (BN):  Boundary Neutral\n  // s (B):   Paragraph Separator\n  // t (S):   Segment Separator\n  // w (WS):  Whitespace\n  // N (ON):  Other Neutrals\n\n  // Returns null if characters are ordered as they appear\n  // (left-to-right), or an array of sections ({from, to, level}\n  // objects) in the order in which they occur visually.\n  var bidiOrdering = (function() {\n    // Character types for codepoints 0 to 0xff\n    var lowTypes = \"bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN\";\n    // Character types for codepoints 0x600 to 0x6f9\n    var arabicTypes = \"nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111\";\n    function charType(code) {\n      if (code <= 0xf7) { return lowTypes.charAt(code) }\n      else if (0x590 <= code && code <= 0x5f4) { return \"R\" }\n      else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }\n      else if (0x6ee <= code && code <= 0x8ac) { return \"r\" }\n      else if (0x2000 <= code && code <= 0x200b) { return \"w\" }\n      else if (code == 0x200c) { return \"b\" }\n      else { return \"L\" }\n    }\n\n    var bidiRE = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\n    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;\n\n    function BidiSpan(level, from, to) {\n      this.level = level;\n      this.from = from; this.to = to;\n    }\n\n    return function(str, direction) {\n      var outerType = direction == \"ltr\" ? \"L\" : \"R\";\n\n      if (str.length == 0 || direction == \"ltr\" && !bidiRE.test(str)) { return false }\n      var len = str.length, types = [];\n      for (var i = 0; i < len; ++i)\n        { types.push(charType(str.charCodeAt(i))); }\n\n      // W1. Examine each non-spacing mark (NSM) in the level run, and\n      // change the type of the NSM to the type of the previous\n      // character. If the NSM is at the start of the level run, it will\n      // get the type of sor.\n      for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {\n        var type = types[i$1];\n        if (type == \"m\") { types[i$1] = prev; }\n        else { prev = type; }\n      }\n\n      // W2. Search backwards from each instance of a European number\n      // until the first strong type (R, L, AL, or sor) is found. If an\n      // AL is found, change the type of the European number to Arabic\n      // number.\n      // W3. Change all ALs to R.\n      for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {\n        var type$1 = types[i$2];\n        if (type$1 == \"1\" && cur == \"r\") { types[i$2] = \"n\"; }\n        else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == \"r\") { types[i$2] = \"R\"; } }\n      }\n\n      // W4. A single European separator between two European numbers\n      // changes to a European number. A single common separator between\n      // two numbers of the same type changes to that type.\n      for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {\n        var type$2 = types[i$3];\n        if (type$2 == \"+\" && prev$1 == \"1\" && types[i$3+1] == \"1\") { types[i$3] = \"1\"; }\n        else if (type$2 == \",\" && prev$1 == types[i$3+1] &&\n                 (prev$1 == \"1\" || prev$1 == \"n\")) { types[i$3] = prev$1; }\n        prev$1 = type$2;\n      }\n\n      // W5. A sequence of European terminators adjacent to European\n      // numbers changes to all European numbers.\n      // W6. Otherwise, separators and terminators change to Other\n      // Neutral.\n      for (var i$4 = 0; i$4 < len; ++i$4) {\n        var type$3 = types[i$4];\n        if (type$3 == \",\") { types[i$4] = \"N\"; }\n        else if (type$3 == \"%\") {\n          var end = (void 0);\n          for (end = i$4 + 1; end < len && types[end] == \"%\"; ++end) {}\n          var replace = (i$4 && types[i$4-1] == \"!\") || (end < len && types[end] == \"1\") ? \"1\" : \"N\";\n          for (var j = i$4; j < end; ++j) { types[j] = replace; }\n          i$4 = end - 1;\n        }\n      }\n\n      // W7. Search backwards from each instance of a European number\n      // until the first strong type (R, L, or sor) is found. If an L is\n      // found, then change the type of the European number to L.\n      for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {\n        var type$4 = types[i$5];\n        if (cur$1 == \"L\" && type$4 == \"1\") { types[i$5] = \"L\"; }\n        else if (isStrong.test(type$4)) { cur$1 = type$4; }\n      }\n\n      // N1. A sequence of neutrals takes the direction of the\n      // surrounding strong text if the text on both sides has the same\n      // direction. European and Arabic numbers act as if they were R in\n      // terms of their influence on neutrals. Start-of-level-run (sor)\n      // and end-of-level-run (eor) are used at level run boundaries.\n      // N2. Any remaining neutrals take the embedding direction.\n      for (var i$6 = 0; i$6 < len; ++i$6) {\n        if (isNeutral.test(types[i$6])) {\n          var end$1 = (void 0);\n          for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}\n          var before = (i$6 ? types[i$6-1] : outerType) == \"L\";\n          var after = (end$1 < len ? types[end$1] : outerType) == \"L\";\n          var replace$1 = before == after ? (before ? \"L\" : \"R\") : outerType;\n          for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }\n          i$6 = end$1 - 1;\n        }\n      }\n\n      // Here we depart from the documented algorithm, in order to avoid\n      // building up an actual levels array. Since there are only three\n      // levels (0, 1, 2) in an implementation that doesn't take\n      // explicit embedding into account, we can build up the order on\n      // the fly, without following the level-based algorithm.\n      var order = [], m;\n      for (var i$7 = 0; i$7 < len;) {\n        if (countsAsLeft.test(types[i$7])) {\n          var start = i$7;\n          for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}\n          order.push(new BidiSpan(0, start, i$7));\n        } else {\n          var pos = i$7, at = order.length;\n          for (++i$7; i$7 < len && types[i$7] != \"L\"; ++i$7) {}\n          for (var j$2 = pos; j$2 < i$7;) {\n            if (countsAsNum.test(types[j$2])) {\n              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); }\n              var nstart = j$2;\n              for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}\n              order.splice(at, 0, new BidiSpan(2, nstart, j$2));\n              pos = j$2;\n            } else { ++j$2; }\n          }\n          if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }\n        }\n      }\n      if (direction == \"ltr\") {\n        if (order[0].level == 1 && (m = str.match(/^\\s+/))) {\n          order[0].from = m[0].length;\n          order.unshift(new BidiSpan(0, 0, m[0].length));\n        }\n        if (lst(order).level == 1 && (m = str.match(/\\s+$/))) {\n          lst(order).to -= m[0].length;\n          order.push(new BidiSpan(0, len - m[0].length, len));\n        }\n      }\n\n      return direction == \"rtl\" ? order.reverse() : order\n    }\n  })();\n\n  // Get the bidi ordering for the given line (and cache it). Returns\n  // false for lines that are fully left-to-right, and an array of\n  // BidiSpan objects otherwise.\n  function getOrder(line, direction) {\n    var order = line.order;\n    if (order == null) { order = line.order = bidiOrdering(line.text, direction); }\n    return order\n  }\n\n  // EVENT HANDLING\n\n  // Lightweight event framework. on/off also work on DOM nodes,\n  // registering native DOM handlers.\n\n  var noHandlers = [];\n\n  var on = function(emitter, type, f) {\n    if (emitter.addEventListener) {\n      emitter.addEventListener(type, f, false);\n    } else if (emitter.attachEvent) {\n      emitter.attachEvent(\"on\" + type, f);\n    } else {\n      var map$$1 = emitter._handlers || (emitter._handlers = {});\n      map$$1[type] = (map$$1[type] || noHandlers).concat(f);\n    }\n  };\n\n  function getHandlers(emitter, type) {\n    return emitter._handlers && emitter._handlers[type] || noHandlers\n  }\n\n  function off(emitter, type, f) {\n    if (emitter.removeEventListener) {\n      emitter.removeEventListener(type, f, false);\n    } else if (emitter.detachEvent) {\n      emitter.detachEvent(\"on\" + type, f);\n    } else {\n      var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type];\n      if (arr) {\n        var index = indexOf(arr, f);\n        if (index > -1)\n          { map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }\n      }\n    }\n  }\n\n  function signal(emitter, type /*, values...*/) {\n    var handlers = getHandlers(emitter, type);\n    if (!handlers.length) { return }\n    var args = Array.prototype.slice.call(arguments, 2);\n    for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }\n  }\n\n  // The DOM events that CodeMirror handles can be overridden by\n  // registering a (non-DOM) handler on the editor for the event name,\n  // and preventDefault-ing the event in that handler.\n  function signalDOMEvent(cm, e, override) {\n    if (typeof e == \"string\")\n      { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }\n    signal(cm, override || e.type, cm, e);\n    return e_defaultPrevented(e) || e.codemirrorIgnore\n  }\n\n  function signalCursorActivity(cm) {\n    var arr = cm._handlers && cm._handlers.cursorActivity;\n    if (!arr) { return }\n    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);\n    for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)\n      { set.push(arr[i]); } }\n  }\n\n  function hasHandler(emitter, type) {\n    return getHandlers(emitter, type).length > 0\n  }\n\n  // Add on and off methods to a constructor's prototype, to make\n  // registering events on such objects more convenient.\n  function eventMixin(ctor) {\n    ctor.prototype.on = function(type, f) {on(this, type, f);};\n    ctor.prototype.off = function(type, f) {off(this, type, f);};\n  }\n\n  // Due to the fact that we still support jurassic IE versions, some\n  // compatibility wrappers are needed.\n\n  function e_preventDefault(e) {\n    if (e.preventDefault) { e.preventDefault(); }\n    else { e.returnValue = false; }\n  }\n  function e_stopPropagation(e) {\n    if (e.stopPropagation) { e.stopPropagation(); }\n    else { e.cancelBubble = true; }\n  }\n  function e_defaultPrevented(e) {\n    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false\n  }\n  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}\n\n  function e_target(e) {return e.target || e.srcElement}\n  function e_button(e) {\n    var b = e.which;\n    if (b == null) {\n      if (e.button & 1) { b = 1; }\n      else if (e.button & 2) { b = 3; }\n      else if (e.button & 4) { b = 2; }\n    }\n    if (mac && e.ctrlKey && b == 1) { b = 3; }\n    return b\n  }\n\n  // Detect drag-and-drop\n  var dragAndDrop = function() {\n    // There is *some* kind of drag-and-drop support in IE6-8, but I\n    // couldn't get it to work yet.\n    if (ie && ie_version < 9) { return false }\n    var div = elt('div');\n    return \"draggable\" in div || \"dragDrop\" in div\n  }();\n\n  var zwspSupported;\n  function zeroWidthElement(measure) {\n    if (zwspSupported == null) {\n      var test = elt(\"span\", \"\\u200b\");\n      removeChildrenAndAdd(measure, elt(\"span\", [test, document.createTextNode(\"x\")]));\n      if (measure.firstChild.offsetHeight != 0)\n        { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }\n    }\n    var node = zwspSupported ? elt(\"span\", \"\\u200b\") :\n      elt(\"span\", \"\\u00a0\", null, \"display: inline-block; width: 1px; margin-right: -1px\");\n    node.setAttribute(\"cm-text\", \"\");\n    return node\n  }\n\n  // Feature-detect IE's crummy client rect reporting for bidi text\n  var badBidiRects;\n  function hasBadBidiRects(measure) {\n    if (badBidiRects != null) { return badBidiRects }\n    var txt = removeChildrenAndAdd(measure, document.createTextNode(\"A\\u062eA\"));\n    var r0 = range(txt, 0, 1).getBoundingClientRect();\n    var r1 = range(txt, 1, 2).getBoundingClientRect();\n    removeChildren(measure);\n    if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)\n    return badBidiRects = (r1.right - r0.right < 3)\n  }\n\n  // See if \"\".split is the broken IE version, if so, provide an\n  // alternative way to split lines.\n  var splitLinesAuto = \"\\n\\nb\".split(/\\n/).length != 3 ? function (string) {\n    var pos = 0, result = [], l = string.length;\n    while (pos <= l) {\n      var nl = string.indexOf(\"\\n\", pos);\n      if (nl == -1) { nl = string.length; }\n      var line = string.slice(pos, string.charAt(nl - 1) == \"\\r\" ? nl - 1 : nl);\n      var rt = line.indexOf(\"\\r\");\n      if (rt != -1) {\n        result.push(line.slice(0, rt));\n        pos += rt + 1;\n      } else {\n        result.push(line);\n        pos = nl + 1;\n      }\n    }\n    return result\n  } : function (string) { return string.split(/\\r\\n?|\\n/); };\n\n  var hasSelection = window.getSelection ? function (te) {\n    try { return te.selectionStart != te.selectionEnd }\n    catch(e) { return false }\n  } : function (te) {\n    var range$$1;\n    try {range$$1 = te.ownerDocument.selection.createRange();}\n    catch(e) {}\n    if (!range$$1 || range$$1.parentElement() != te) { return false }\n    return range$$1.compareEndPoints(\"StartToEnd\", range$$1) != 0\n  };\n\n  var hasCopyEvent = (function () {\n    var e = elt(\"div\");\n    if (\"oncopy\" in e) { return true }\n    e.setAttribute(\"oncopy\", \"return;\");\n    return typeof e.oncopy == \"function\"\n  })();\n\n  var badZoomedRects = null;\n  function hasBadZoomedRects(measure) {\n    if (badZoomedRects != null) { return badZoomedRects }\n    var node = removeChildrenAndAdd(measure, elt(\"span\", \"x\"));\n    var normal = node.getBoundingClientRect();\n    var fromRange = range(node, 0, 1).getBoundingClientRect();\n    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1\n  }\n\n  // Known modes, by name and by MIME\n  var modes = {}, mimeModes = {};\n\n  // Extra arguments are stored as the mode's dependencies, which is\n  // used by (legacy) mechanisms like loadmode.js to automatically\n  // load a mode. (Preferred mechanism is the require/define calls.)\n  function defineMode(name, mode) {\n    if (arguments.length > 2)\n      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }\n    modes[name] = mode;\n  }\n\n  function defineMIME(mime, spec) {\n    mimeModes[mime] = spec;\n  }\n\n  // Given a MIME type, a {name, ...options} config object, or a name\n  // string, return a mode config object.\n  function resolveMode(spec) {\n    if (typeof spec == \"string\" && mimeModes.hasOwnProperty(spec)) {\n      spec = mimeModes[spec];\n    } else if (spec && typeof spec.name == \"string\" && mimeModes.hasOwnProperty(spec.name)) {\n      var found = mimeModes[spec.name];\n      if (typeof found == \"string\") { found = {name: found}; }\n      spec = createObj(found, spec);\n      spec.name = found.name;\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+xml$/.test(spec)) {\n      return resolveMode(\"application/xml\")\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+json$/.test(spec)) {\n      return resolveMode(\"application/json\")\n    }\n    if (typeof spec == \"string\") { return {name: spec} }\n    else { return spec || {name: \"null\"} }\n  }\n\n  // Given a mode spec (anything that resolveMode accepts), find and\n  // initialize an actual mode object.\n  function getMode(options, spec) {\n    spec = resolveMode(spec);\n    var mfactory = modes[spec.name];\n    if (!mfactory) { return getMode(options, \"text/plain\") }\n    var modeObj = mfactory(options, spec);\n    if (modeExtensions.hasOwnProperty(spec.name)) {\n      var exts = modeExtensions[spec.name];\n      for (var prop in exts) {\n        if (!exts.hasOwnProperty(prop)) { continue }\n        if (modeObj.hasOwnProperty(prop)) { modeObj[\"_\" + prop] = modeObj[prop]; }\n        modeObj[prop] = exts[prop];\n      }\n    }\n    modeObj.name = spec.name;\n    if (spec.helperType) { modeObj.helperType = spec.helperType; }\n    if (spec.modeProps) { for (var prop$1 in spec.modeProps)\n      { modeObj[prop$1] = spec.modeProps[prop$1]; } }\n\n    return modeObj\n  }\n\n  // This can be used to attach properties to mode objects from\n  // outside the actual mode definition.\n  var modeExtensions = {};\n  function extendMode(mode, properties) {\n    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});\n    copyObj(properties, exts);\n  }\n\n  function copyState(mode, state) {\n    if (state === true) { return state }\n    if (mode.copyState) { return mode.copyState(state) }\n    var nstate = {};\n    for (var n in state) {\n      var val = state[n];\n      if (val instanceof Array) { val = val.concat([]); }\n      nstate[n] = val;\n    }\n    return nstate\n  }\n\n  // Given a mode and a state (for that mode), find the inner mode and\n  // state at the position that the state refers to.\n  function innerMode(mode, state) {\n    var info;\n    while (mode.innerMode) {\n      info = mode.innerMode(state);\n      if (!info || info.mode == mode) { break }\n      state = info.state;\n      mode = info.mode;\n    }\n    return info || {mode: mode, state: state}\n  }\n\n  function startState(mode, a1, a2) {\n    return mode.startState ? mode.startState(a1, a2) : true\n  }\n\n  // STRING STREAM\n\n  // Fed to the mode parsers, provides helper functions to make\n  // parsers more succinct.\n\n  var StringStream = function(string, tabSize, lineOracle) {\n    this.pos = this.start = 0;\n    this.string = string;\n    this.tabSize = tabSize || 8;\n    this.lastColumnPos = this.lastColumnValue = 0;\n    this.lineStart = 0;\n    this.lineOracle = lineOracle;\n  };\n\n  StringStream.prototype.eol = function () {return this.pos >= this.string.length};\n  StringStream.prototype.sol = function () {return this.pos == this.lineStart};\n  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};\n  StringStream.prototype.next = function () {\n    if (this.pos < this.string.length)\n      { return this.string.charAt(this.pos++) }\n  };\n  StringStream.prototype.eat = function (match) {\n    var ch = this.string.charAt(this.pos);\n    var ok;\n    if (typeof match == \"string\") { ok = ch == match; }\n    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }\n    if (ok) {++this.pos; return ch}\n  };\n  StringStream.prototype.eatWhile = function (match) {\n    var start = this.pos;\n    while (this.eat(match)){}\n    return this.pos > start\n  };\n  StringStream.prototype.eatSpace = function () {\n      var this$1 = this;\n\n    var start = this.pos;\n    while (/[\\s\\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; }\n    return this.pos > start\n  };\n  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};\n  StringStream.prototype.skipTo = function (ch) {\n    var found = this.string.indexOf(ch, this.pos);\n    if (found > -1) {this.pos = found; return true}\n  };\n  StringStream.prototype.backUp = function (n) {this.pos -= n;};\n  StringStream.prototype.column = function () {\n    if (this.lastColumnPos < this.start) {\n      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);\n      this.lastColumnPos = this.start;\n    }\n    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n  };\n  StringStream.prototype.indentation = function () {\n    return countColumn(this.string, null, this.tabSize) -\n      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n  };\n  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {\n    if (typeof pattern == \"string\") {\n      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };\n      var substr = this.string.substr(this.pos, pattern.length);\n      if (cased(substr) == cased(pattern)) {\n        if (consume !== false) { this.pos += pattern.length; }\n        return true\n      }\n    } else {\n      var match = this.string.slice(this.pos).match(pattern);\n      if (match && match.index > 0) { return null }\n      if (match && consume !== false) { this.pos += match[0].length; }\n      return match\n    }\n  };\n  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};\n  StringStream.prototype.hideFirstChars = function (n, inner) {\n    this.lineStart += n;\n    try { return inner() }\n    finally { this.lineStart -= n; }\n  };\n  StringStream.prototype.lookAhead = function (n) {\n    var oracle = this.lineOracle;\n    return oracle && oracle.lookAhead(n)\n  };\n  StringStream.prototype.baseToken = function () {\n    var oracle = this.lineOracle;\n    return oracle && oracle.baseToken(this.pos)\n  };\n\n  // Find the line object corresponding to the given line number.\n  function getLine(doc, n) {\n    n -= doc.first;\n    if (n < 0 || n >= doc.size) { throw new Error(\"There is no line \" + (n + doc.first) + \" in the document.\") }\n    var chunk = doc;\n    while (!chunk.lines) {\n      for (var i = 0;; ++i) {\n        var child = chunk.children[i], sz = child.chunkSize();\n        if (n < sz) { chunk = child; break }\n        n -= sz;\n      }\n    }\n    return chunk.lines[n]\n  }\n\n  // Get the part of a document between two positions, as an array of\n  // strings.\n  function getBetween(doc, start, end) {\n    var out = [], n = start.line;\n    doc.iter(start.line, end.line + 1, function (line) {\n      var text = line.text;\n      if (n == end.line) { text = text.slice(0, end.ch); }\n      if (n == start.line) { text = text.slice(start.ch); }\n      out.push(text);\n      ++n;\n    });\n    return out\n  }\n  // Get the lines between from and to, as array of strings.\n  function getLines(doc, from, to) {\n    var out = [];\n    doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value\n    return out\n  }\n\n  // Update the height of a line, propagating the height change\n  // upwards to parent nodes.\n  function updateLineHeight(line, height) {\n    var diff = height - line.height;\n    if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }\n  }\n\n  // Given a line object, find its line number by walking up through\n  // its parent links.\n  function lineNo(line) {\n    if (line.parent == null) { return null }\n    var cur = line.parent, no = indexOf(cur.lines, line);\n    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {\n      for (var i = 0;; ++i) {\n        if (chunk.children[i] == cur) { break }\n        no += chunk.children[i].chunkSize();\n      }\n    }\n    return no + cur.first\n  }\n\n  // Find the line at the given vertical position, using the height\n  // information in the document tree.\n  function lineAtHeight(chunk, h) {\n    var n = chunk.first;\n    outer: do {\n      for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {\n        var child = chunk.children[i$1], ch = child.height;\n        if (h < ch) { chunk = child; continue outer }\n        h -= ch;\n        n += child.chunkSize();\n      }\n      return n\n    } while (!chunk.lines)\n    var i = 0;\n    for (; i < chunk.lines.length; ++i) {\n      var line = chunk.lines[i], lh = line.height;\n      if (h < lh) { break }\n      h -= lh;\n    }\n    return n + i\n  }\n\n  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}\n\n  function lineNumberFor(options, i) {\n    return String(options.lineNumberFormatter(i + options.firstLineNumber))\n  }\n\n  // A Pos instance represents a position within the text.\n  function Pos(line, ch, sticky) {\n    if ( sticky === void 0 ) sticky = null;\n\n    if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }\n    this.line = line;\n    this.ch = ch;\n    this.sticky = sticky;\n  }\n\n  // Compare two positions, return 0 if they are the same, a negative\n  // number when a is less, and a positive number otherwise.\n  function cmp(a, b) { return a.line - b.line || a.ch - b.ch }\n\n  function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }\n\n  function copyPos(x) {return Pos(x.line, x.ch)}\n  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }\n  function minPos(a, b) { return cmp(a, b) < 0 ? a : b }\n\n  // Most of the external API clips given positions to make sure they\n  // actually exist within the document.\n  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}\n  function clipPos(doc, pos) {\n    if (pos.line < doc.first) { return Pos(doc.first, 0) }\n    var last = doc.first + doc.size - 1;\n    if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }\n    return clipToLen(pos, getLine(doc, pos.line).text.length)\n  }\n  function clipToLen(pos, linelen) {\n    var ch = pos.ch;\n    if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }\n    else if (ch < 0) { return Pos(pos.line, 0) }\n    else { return pos }\n  }\n  function clipPosArray(doc, array) {\n    var out = [];\n    for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }\n    return out\n  }\n\n  var SavedContext = function(state, lookAhead) {\n    this.state = state;\n    this.lookAhead = lookAhead;\n  };\n\n  var Context = function(doc, state, line, lookAhead) {\n    this.state = state;\n    this.doc = doc;\n    this.line = line;\n    this.maxLookAhead = lookAhead || 0;\n    this.baseTokens = null;\n    this.baseTokenPos = 1;\n  };\n\n  Context.prototype.lookAhead = function (n) {\n    var line = this.doc.getLine(this.line + n);\n    if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }\n    return line\n  };\n\n  Context.prototype.baseToken = function (n) {\n      var this$1 = this;\n\n    if (!this.baseTokens) { return null }\n    while (this.baseTokens[this.baseTokenPos] <= n)\n      { this$1.baseTokenPos += 2; }\n    var type = this.baseTokens[this.baseTokenPos + 1];\n    return {type: type && type.replace(/( |^)overlay .*/, \"\"),\n            size: this.baseTokens[this.baseTokenPos] - n}\n  };\n\n  Context.prototype.nextLine = function () {\n    this.line++;\n    if (this.maxLookAhead > 0) { this.maxLookAhead--; }\n  };\n\n  Context.fromSaved = function (doc, saved, line) {\n    if (saved instanceof SavedContext)\n      { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }\n    else\n      { return new Context(doc, copyState(doc.mode, saved), line) }\n  };\n\n  Context.prototype.save = function (copy) {\n    var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;\n    return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state\n  };\n\n\n  // Compute a style array (an array starting with a mode generation\n  // -- for invalidation -- followed by pairs of end positions and\n  // style strings), which is used to highlight the tokens on the\n  // line.\n  function highlightLine(cm, line, context, forceToEnd) {\n    // A styles array always starts with a number identifying the\n    // mode/overlays that it is based on (for easy invalidation).\n    var st = [cm.state.modeGen], lineClasses = {};\n    // Compute the base array of styles\n    runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },\n            lineClasses, forceToEnd);\n    var state = context.state;\n\n    // Run overlays, adjust style array.\n    var loop = function ( o ) {\n      context.baseTokens = st;\n      var overlay = cm.state.overlays[o], i = 1, at = 0;\n      context.state = true;\n      runMode(cm, line.text, overlay.mode, context, function (end, style) {\n        var start = i;\n        // Ensure there's a token end at the current position, and that i points at it\n        while (at < end) {\n          var i_end = st[i];\n          if (i_end > end)\n            { st.splice(i, 1, end, st[i+1], i_end); }\n          i += 2;\n          at = Math.min(end, i_end);\n        }\n        if (!style) { return }\n        if (overlay.opaque) {\n          st.splice(start, i - start, end, \"overlay \" + style);\n          i = start + 2;\n        } else {\n          for (; start < i; start += 2) {\n            var cur = st[start+1];\n            st[start+1] = (cur ? cur + \" \" : \"\") + \"overlay \" + style;\n          }\n        }\n      }, lineClasses);\n      context.state = state;\n      context.baseTokens = null;\n      context.baseTokenPos = 1;\n    };\n\n    for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );\n\n    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}\n  }\n\n  function getLineStyles(cm, line, updateFrontier) {\n    if (!line.styles || line.styles[0] != cm.state.modeGen) {\n      var context = getContextBefore(cm, lineNo(line));\n      var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);\n      var result = highlightLine(cm, line, context);\n      if (resetState) { context.state = resetState; }\n      line.stateAfter = context.save(!resetState);\n      line.styles = result.styles;\n      if (result.classes) { line.styleClasses = result.classes; }\n      else if (line.styleClasses) { line.styleClasses = null; }\n      if (updateFrontier === cm.doc.highlightFrontier)\n        { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }\n    }\n    return line.styles\n  }\n\n  function getContextBefore(cm, n, precise) {\n    var doc = cm.doc, display = cm.display;\n    if (!doc.mode.startState) { return new Context(doc, true, n) }\n    var start = findStartLine(cm, n, precise);\n    var saved = start > doc.first && getLine(doc, start - 1).stateAfter;\n    var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);\n\n    doc.iter(start, n, function (line) {\n      processLine(cm, line.text, context);\n      var pos = context.line;\n      line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;\n      context.nextLine();\n    });\n    if (precise) { doc.modeFrontier = context.line; }\n    return context\n  }\n\n  // Lightweight form of highlight -- proceed over this line and\n  // update state, but don't save a style array. Used for lines that\n  // aren't currently visible.\n  function processLine(cm, text, context, startAt) {\n    var mode = cm.doc.mode;\n    var stream = new StringStream(text, cm.options.tabSize, context);\n    stream.start = stream.pos = startAt || 0;\n    if (text == \"\") { callBlankLine(mode, context.state); }\n    while (!stream.eol()) {\n      readToken(mode, stream, context.state);\n      stream.start = stream.pos;\n    }\n  }\n\n  function callBlankLine(mode, state) {\n    if (mode.blankLine) { return mode.blankLine(state) }\n    if (!mode.innerMode) { return }\n    var inner = innerMode(mode, state);\n    if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }\n  }\n\n  function readToken(mode, stream, state, inner) {\n    for (var i = 0; i < 10; i++) {\n      if (inner) { inner[0] = innerMode(mode, state).mode; }\n      var style = mode.token(stream, state);\n      if (stream.pos > stream.start) { return style }\n    }\n    throw new Error(\"Mode \" + mode.name + \" failed to advance stream.\")\n  }\n\n  var Token = function(stream, type, state) {\n    this.start = stream.start; this.end = stream.pos;\n    this.string = stream.current();\n    this.type = type || null;\n    this.state = state;\n  };\n\n  // Utility for getTokenAt and getLineTokens\n  function takeToken(cm, pos, precise, asArray) {\n    var doc = cm.doc, mode = doc.mode, style;\n    pos = clipPos(doc, pos);\n    var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);\n    var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;\n    if (asArray) { tokens = []; }\n    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {\n      stream.start = stream.pos;\n      style = readToken(mode, stream, context.state);\n      if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }\n    }\n    return asArray ? tokens : new Token(stream, style, context.state)\n  }\n\n  function extractLineClasses(type, output) {\n    if (type) { for (;;) {\n      var lineClass = type.match(/(?:^|\\s+)line-(background-)?(\\S+)/);\n      if (!lineClass) { break }\n      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);\n      var prop = lineClass[1] ? \"bgClass\" : \"textClass\";\n      if (output[prop] == null)\n        { output[prop] = lineClass[2]; }\n      else if (!(new RegExp(\"(?:^|\\s)\" + lineClass[2] + \"(?:$|\\s)\")).test(output[prop]))\n        { output[prop] += \" \" + lineClass[2]; }\n    } }\n    return type\n  }\n\n  // Run the given mode's parser over a line, calling f for each token.\n  function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {\n    var flattenSpans = mode.flattenSpans;\n    if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }\n    var curStart = 0, curStyle = null;\n    var stream = new StringStream(text, cm.options.tabSize, context), style;\n    var inner = cm.options.addModeClass && [null];\n    if (text == \"\") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }\n    while (!stream.eol()) {\n      if (stream.pos > cm.options.maxHighlightLength) {\n        flattenSpans = false;\n        if (forceToEnd) { processLine(cm, text, context, stream.pos); }\n        stream.pos = text.length;\n        style = null;\n      } else {\n        style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);\n      }\n      if (inner) {\n        var mName = inner[0].name;\n        if (mName) { style = \"m-\" + (style ? mName + \" \" + style : mName); }\n      }\n      if (!flattenSpans || curStyle != style) {\n        while (curStart < stream.start) {\n          curStart = Math.min(stream.start, curStart + 5000);\n          f(curStart, curStyle);\n        }\n        curStyle = style;\n      }\n      stream.start = stream.pos;\n    }\n    while (curStart < stream.pos) {\n      // Webkit seems to refuse to render text nodes longer than 57444\n      // characters, and returns inaccurate measurements in nodes\n      // starting around 5000 chars.\n      var pos = Math.min(stream.pos, curStart + 5000);\n      f(pos, curStyle);\n      curStart = pos;\n    }\n  }\n\n  // Finds the line to start with when starting a parse. Tries to\n  // find a line with a stateAfter, so that it can start with a\n  // valid state. If that fails, it returns the line with the\n  // smallest indentation, which tends to need the least context to\n  // parse correctly.\n  function findStartLine(cm, n, precise) {\n    var minindent, minline, doc = cm.doc;\n    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);\n    for (var search = n; search > lim; --search) {\n      if (search <= doc.first) { return doc.first }\n      var line = getLine(doc, search - 1), after = line.stateAfter;\n      if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))\n        { return search }\n      var indented = countColumn(line.text, null, cm.options.tabSize);\n      if (minline == null || minindent > indented) {\n        minline = search - 1;\n        minindent = indented;\n      }\n    }\n    return minline\n  }\n\n  function retreatFrontier(doc, n) {\n    doc.modeFrontier = Math.min(doc.modeFrontier, n);\n    if (doc.highlightFrontier < n - 10) { return }\n    var start = doc.first;\n    for (var line = n - 1; line > start; line--) {\n      var saved = getLine(doc, line).stateAfter;\n      // change is on 3\n      // state on line 1 looked ahead 2 -- so saw 3\n      // test 1 + 2 < 3 should cover this\n      if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {\n        start = line + 1;\n        break\n      }\n    }\n    doc.highlightFrontier = Math.min(doc.highlightFrontier, start);\n  }\n\n  // Optimize some code when these features are not used.\n  var sawReadOnlySpans = false, sawCollapsedSpans = false;\n\n  function seeReadOnlySpans() {\n    sawReadOnlySpans = true;\n  }\n\n  function seeCollapsedSpans() {\n    sawCollapsedSpans = true;\n  }\n\n  // TEXTMARKER SPANS\n\n  function MarkedSpan(marker, from, to) {\n    this.marker = marker;\n    this.from = from; this.to = to;\n  }\n\n  // Search an array of spans for a span matching the given marker.\n  function getMarkedSpanFor(spans, marker) {\n    if (spans) { for (var i = 0; i < spans.length; ++i) {\n      var span = spans[i];\n      if (span.marker == marker) { return span }\n    } }\n  }\n  // Remove a span from an array, returning undefined if no spans are\n  // left (we don't store arrays for lines without spans).\n  function removeMarkedSpan(spans, span) {\n    var r;\n    for (var i = 0; i < spans.length; ++i)\n      { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }\n    return r\n  }\n  // Add a span to a line.\n  function addMarkedSpan(line, span) {\n    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];\n    span.marker.attachLine(line);\n  }\n\n  // Used for the algorithm that adjusts markers for a change in the\n  // document. These functions cut an array of spans at a given\n  // character position, returning an array of remaining chunks (or\n  // undefined if nothing remains).\n  function markedSpansBefore(old, startCh, isInsert) {\n    var nw;\n    if (old) { for (var i = 0; i < old.length; ++i) {\n      var span = old[i], marker = span.marker;\n      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);\n      if (startsBefore || span.from == startCh && marker.type == \"bookmark\" && (!isInsert || !span.marker.insertLeft)) {\n        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)\n        ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));\n      }\n    } }\n    return nw\n  }\n  function markedSpansAfter(old, endCh, isInsert) {\n    var nw;\n    if (old) { for (var i = 0; i < old.length; ++i) {\n      var span = old[i], marker = span.marker;\n      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);\n      if (endsAfter || span.from == endCh && marker.type == \"bookmark\" && (!isInsert || span.marker.insertLeft)) {\n        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)\n        ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,\n                                              span.to == null ? null : span.to - endCh));\n      }\n    } }\n    return nw\n  }\n\n  // Given a change object, compute the new set of marker spans that\n  // cover the line in which the change took place. Removes spans\n  // entirely within the change, reconnects spans belonging to the\n  // same marker that appear on both sides of the change, and cuts off\n  // spans partially within the change. Returns an array of span\n  // arrays with one element for each line in (after) the change.\n  function stretchSpansOverChange(doc, change) {\n    if (change.full) { return null }\n    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;\n    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;\n    if (!oldFirst && !oldLast) { return null }\n\n    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;\n    // Get the spans that 'stick out' on both sides\n    var first = markedSpansBefore(oldFirst, startCh, isInsert);\n    var last = markedSpansAfter(oldLast, endCh, isInsert);\n\n    // Next, merge those two ends\n    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);\n    if (first) {\n      // Fix up .to properties of first\n      for (var i = 0; i < first.length; ++i) {\n        var span = first[i];\n        if (span.to == null) {\n          var found = getMarkedSpanFor(last, span.marker);\n          if (!found) { span.to = startCh; }\n          else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }\n        }\n      }\n    }\n    if (last) {\n      // Fix up .from in last (or move them into first in case of sameLine)\n      for (var i$1 = 0; i$1 < last.length; ++i$1) {\n        var span$1 = last[i$1];\n        if (span$1.to != null) { span$1.to += offset; }\n        if (span$1.from == null) {\n          var found$1 = getMarkedSpanFor(first, span$1.marker);\n          if (!found$1) {\n            span$1.from = offset;\n            if (sameLine) { (first || (first = [])).push(span$1); }\n          }\n        } else {\n          span$1.from += offset;\n          if (sameLine) { (first || (first = [])).push(span$1); }\n        }\n      }\n    }\n    // Make sure we didn't create any zero-length spans\n    if (first) { first = clearEmptySpans(first); }\n    if (last && last != first) { last = clearEmptySpans(last); }\n\n    var newMarkers = [first];\n    if (!sameLine) {\n      // Fill gap with whole-line-spans\n      var gap = change.text.length - 2, gapMarkers;\n      if (gap > 0 && first)\n        { for (var i$2 = 0; i$2 < first.length; ++i$2)\n          { if (first[i$2].to == null)\n            { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }\n      for (var i$3 = 0; i$3 < gap; ++i$3)\n        { newMarkers.push(gapMarkers); }\n      newMarkers.push(last);\n    }\n    return newMarkers\n  }\n\n  // Remove spans that are empty and don't have a clearWhenEmpty\n  // option of false.\n  function clearEmptySpans(spans) {\n    for (var i = 0; i < spans.length; ++i) {\n      var span = spans[i];\n      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)\n        { spans.splice(i--, 1); }\n    }\n    if (!spans.length) { return null }\n    return spans\n  }\n\n  // Used to 'clip' out readOnly ranges when making a change.\n  function removeReadOnlyRanges(doc, from, to) {\n    var markers = null;\n    doc.iter(from.line, to.line + 1, function (line) {\n      if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n        var mark = line.markedSpans[i].marker;\n        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))\n          { (markers || (markers = [])).push(mark); }\n      } }\n    });\n    if (!markers) { return null }\n    var parts = [{from: from, to: to}];\n    for (var i = 0; i < markers.length; ++i) {\n      var mk = markers[i], m = mk.find(0);\n      for (var j = 0; j < parts.length; ++j) {\n        var p = parts[j];\n        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }\n        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);\n        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)\n          { newParts.push({from: p.from, to: m.from}); }\n        if (dto > 0 || !mk.inclusiveRight && !dto)\n          { newParts.push({from: m.to, to: p.to}); }\n        parts.splice.apply(parts, newParts);\n        j += newParts.length - 3;\n      }\n    }\n    return parts\n  }\n\n  // Connect or disconnect spans from a line.\n  function detachMarkedSpans(line) {\n    var spans = line.markedSpans;\n    if (!spans) { return }\n    for (var i = 0; i < spans.length; ++i)\n      { spans[i].marker.detachLine(line); }\n    line.markedSpans = null;\n  }\n  function attachMarkedSpans(line, spans) {\n    if (!spans) { return }\n    for (var i = 0; i < spans.length; ++i)\n      { spans[i].marker.attachLine(line); }\n    line.markedSpans = spans;\n  }\n\n  // Helpers used when computing which overlapping collapsed span\n  // counts as the larger one.\n  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }\n  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }\n\n  // Returns a number indicating which of two overlapping collapsed\n  // spans is larger (and thus includes the other). Falls back to\n  // comparing ids when the spans cover exactly the same range.\n  function compareCollapsedMarkers(a, b) {\n    var lenDiff = a.lines.length - b.lines.length;\n    if (lenDiff != 0) { return lenDiff }\n    var aPos = a.find(), bPos = b.find();\n    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);\n    if (fromCmp) { return -fromCmp }\n    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);\n    if (toCmp) { return toCmp }\n    return b.id - a.id\n  }\n\n  // Find out whether a line ends or starts in a collapsed span. If\n  // so, return the marker for that span.\n  function collapsedSpanAtSide(line, start) {\n    var sps = sawCollapsedSpans && line.markedSpans, found;\n    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n      sp = sps[i];\n      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0))\n        { found = sp.marker; }\n    } }\n    return found\n  }\n  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }\n  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }\n\n  function collapsedSpanAround(line, ch) {\n    var sps = sawCollapsedSpans && line.markedSpans, found;\n    if (sps) { for (var i = 0; i < sps.length; ++i) {\n      var sp = sps[i];\n      if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }\n    } }\n    return found\n  }\n\n  // Test whether there exists a collapsed span that partially\n  // overlaps (covers the start or end, but not both) of a new span.\n  // Such overlap is not allowed.\n  function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) {\n    var line = getLine(doc, lineNo$$1);\n    var sps = sawCollapsedSpans && line.markedSpans;\n    if (sps) { for (var i = 0; i < sps.length; ++i) {\n      var sp = sps[i];\n      if (!sp.marker.collapsed) { continue }\n      var found = sp.marker.find(0);\n      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);\n      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);\n      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }\n      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||\n          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))\n        { return true }\n    } }\n  }\n\n  // A visual line is a line as drawn on the screen. Folding, for\n  // example, can cause multiple logical lines to appear on the same\n  // visual line. This finds the start of the visual line that the\n  // given line is part of (usually that is the line itself).\n  function visualLine(line) {\n    var merged;\n    while (merged = collapsedSpanAtStart(line))\n      { line = merged.find(-1, true).line; }\n    return line\n  }\n\n  function visualLineEnd(line) {\n    var merged;\n    while (merged = collapsedSpanAtEnd(line))\n      { line = merged.find(1, true).line; }\n    return line\n  }\n\n  // Returns an array of logical lines that continue the visual line\n  // started by the argument, or undefined if there are no such lines.\n  function visualLineContinued(line) {\n    var merged, lines;\n    while (merged = collapsedSpanAtEnd(line)) {\n      line = merged.find(1, true).line\n      ;(lines || (lines = [])).push(line);\n    }\n    return lines\n  }\n\n  // Get the line number of the start of the visual line that the\n  // given line number is part of.\n  function visualLineNo(doc, lineN) {\n    var line = getLine(doc, lineN), vis = visualLine(line);\n    if (line == vis) { return lineN }\n    return lineNo(vis)\n  }\n\n  // Get the line number of the start of the next visual line after\n  // the given line.\n  function visualLineEndNo(doc, lineN) {\n    if (lineN > doc.lastLine()) { return lineN }\n    var line = getLine(doc, lineN), merged;\n    if (!lineIsHidden(doc, line)) { return lineN }\n    while (merged = collapsedSpanAtEnd(line))\n      { line = merged.find(1, true).line; }\n    return lineNo(line) + 1\n  }\n\n  // Compute whether a line is hidden. Lines count as hidden when they\n  // are part of a visual line that starts with another line, or when\n  // they are entirely covered by collapsed, non-widget span.\n  function lineIsHidden(doc, line) {\n    var sps = sawCollapsedSpans && line.markedSpans;\n    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n      sp = sps[i];\n      if (!sp.marker.collapsed) { continue }\n      if (sp.from == null) { return true }\n      if (sp.marker.widgetNode) { continue }\n      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))\n        { return true }\n    } }\n  }\n  function lineIsHiddenInner(doc, line, span) {\n    if (span.to == null) {\n      var end = span.marker.find(1, true);\n      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))\n    }\n    if (span.marker.inclusiveRight && span.to == line.text.length)\n      { return true }\n    for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {\n      sp = line.markedSpans[i];\n      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&\n          (sp.to == null || sp.to != span.from) &&\n          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&\n          lineIsHiddenInner(doc, line, sp)) { return true }\n    }\n  }\n\n  // Find the height above the given line.\n  function heightAtLine(lineObj) {\n    lineObj = visualLine(lineObj);\n\n    var h = 0, chunk = lineObj.parent;\n    for (var i = 0; i < chunk.lines.length; ++i) {\n      var line = chunk.lines[i];\n      if (line == lineObj) { break }\n      else { h += line.height; }\n    }\n    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {\n      for (var i$1 = 0; i$1 < p.children.length; ++i$1) {\n        var cur = p.children[i$1];\n        if (cur == chunk) { break }\n        else { h += cur.height; }\n      }\n    }\n    return h\n  }\n\n  // Compute the character length of a line, taking into account\n  // collapsed ranges (see markText) that might hide parts, and join\n  // other lines onto it.\n  function lineLength(line) {\n    if (line.height == 0) { return 0 }\n    var len = line.text.length, merged, cur = line;\n    while (merged = collapsedSpanAtStart(cur)) {\n      var found = merged.find(0, true);\n      cur = found.from.line;\n      len += found.from.ch - found.to.ch;\n    }\n    cur = line;\n    while (merged = collapsedSpanAtEnd(cur)) {\n      var found$1 = merged.find(0, true);\n      len -= cur.text.length - found$1.from.ch;\n      cur = found$1.to.line;\n      len += cur.text.length - found$1.to.ch;\n    }\n    return len\n  }\n\n  // Find the longest line in the document.\n  function findMaxLine(cm) {\n    var d = cm.display, doc = cm.doc;\n    d.maxLine = getLine(doc, doc.first);\n    d.maxLineLength = lineLength(d.maxLine);\n    d.maxLineChanged = true;\n    doc.iter(function (line) {\n      var len = lineLength(line);\n      if (len > d.maxLineLength) {\n        d.maxLineLength = len;\n        d.maxLine = line;\n      }\n    });\n  }\n\n  // LINE DATA STRUCTURE\n\n  // Line objects. These hold state related to a line, including\n  // highlighting info (the styles array).\n  var Line = function(text, markedSpans, estimateHeight) {\n    this.text = text;\n    attachMarkedSpans(this, markedSpans);\n    this.height = estimateHeight ? estimateHeight(this) : 1;\n  };\n\n  Line.prototype.lineNo = function () { return lineNo(this) };\n  eventMixin(Line);\n\n  // Change the content (text, markers) of a line. Automatically\n  // invalidates cached information and tries to re-estimate the\n  // line's height.\n  function updateLine(line, text, markedSpans, estimateHeight) {\n    line.text = text;\n    if (line.stateAfter) { line.stateAfter = null; }\n    if (line.styles) { line.styles = null; }\n    if (line.order != null) { line.order = null; }\n    detachMarkedSpans(line);\n    attachMarkedSpans(line, markedSpans);\n    var estHeight = estimateHeight ? estimateHeight(line) : 1;\n    if (estHeight != line.height) { updateLineHeight(line, estHeight); }\n  }\n\n  // Detach a line from the document tree and its markers.\n  function cleanUpLine(line) {\n    line.parent = null;\n    detachMarkedSpans(line);\n  }\n\n  // Convert a style as returned by a mode (either null, or a string\n  // containing one or more styles) to a CSS style. This is cached,\n  // and also looks for line-wide styles.\n  var styleToClassCache = {}, styleToClassCacheWithMode = {};\n  function interpretTokenStyle(style, options) {\n    if (!style || /^\\s*$/.test(style)) { return null }\n    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;\n    return cache[style] ||\n      (cache[style] = style.replace(/\\S+/g, \"cm-$&\"))\n  }\n\n  // Render the DOM representation of the text of a line. Also builds\n  // up a 'line map', which points at the DOM nodes that represent\n  // specific stretches of text, and is used by the measuring code.\n  // The returned object contains the DOM node, this map, and\n  // information about line-wide styles that were set by the mode.\n  function buildLineContent(cm, lineView) {\n    // The padding-right forces the element to have a 'border', which\n    // is needed on Webkit to be able to get line-level bounding\n    // rectangles for it (in measureChar).\n    var content = eltP(\"span\", null, null, webkit ? \"padding-right: .1px\" : null);\n    var builder = {pre: eltP(\"pre\", [content], \"CodeMirror-line\"), content: content,\n                   col: 0, pos: 0, cm: cm,\n                   trailingSpace: false,\n                   splitSpaces: cm.getOption(\"lineWrapping\")};\n    lineView.measure = {};\n\n    // Iterate over the logical lines that make up this visual line.\n    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {\n      var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);\n      builder.pos = 0;\n      builder.addToken = buildToken;\n      // Optionally wire in some hacks into the token-rendering\n      // algorithm, to deal with browser quirks.\n      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))\n        { builder.addToken = buildTokenBadBidi(builder.addToken, order); }\n      builder.map = [];\n      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);\n      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));\n      if (line.styleClasses) {\n        if (line.styleClasses.bgClass)\n          { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || \"\"); }\n        if (line.styleClasses.textClass)\n          { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || \"\"); }\n      }\n\n      // Ensure at least a single node is present, for measuring.\n      if (builder.map.length == 0)\n        { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }\n\n      // Store the map and a cache object for the current logical line\n      if (i == 0) {\n        lineView.measure.map = builder.map;\n        lineView.measure.cache = {};\n      } else {\n  (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)\n        ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});\n      }\n    }\n\n    // See issue #2901\n    if (webkit) {\n      var last = builder.content.lastChild;\n      if (/\\bcm-tab\\b/.test(last.className) || (last.querySelector && last.querySelector(\".cm-tab\")))\n        { builder.content.className = \"cm-tab-wrap-hack\"; }\n    }\n\n    signal(cm, \"renderLine\", cm, lineView.line, builder.pre);\n    if (builder.pre.className)\n      { builder.textClass = joinClasses(builder.pre.className, builder.textClass || \"\"); }\n\n    return builder\n  }\n\n  function defaultSpecialCharPlaceholder(ch) {\n    var token = elt(\"span\", \"\\u2022\", \"cm-invalidchar\");\n    token.title = \"\\\\u\" + ch.charCodeAt(0).toString(16);\n    token.setAttribute(\"aria-label\", token.title);\n    return token\n  }\n\n  // Build up the DOM representation for a single token, and add it to\n  // the line map. Takes care to render special characters separately.\n  function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {\n    if (!text) { return }\n    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;\n    var special = builder.cm.state.specialChars, mustWrap = false;\n    var content;\n    if (!special.test(text)) {\n      builder.col += text.length;\n      content = document.createTextNode(displayText);\n      builder.map.push(builder.pos, builder.pos + text.length, content);\n      if (ie && ie_version < 9) { mustWrap = true; }\n      builder.pos += text.length;\n    } else {\n      content = document.createDocumentFragment();\n      var pos = 0;\n      while (true) {\n        special.lastIndex = pos;\n        var m = special.exec(text);\n        var skipped = m ? m.index - pos : text.length - pos;\n        if (skipped) {\n          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));\n          if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt])); }\n          else { content.appendChild(txt); }\n          builder.map.push(builder.pos, builder.pos + skipped, txt);\n          builder.col += skipped;\n          builder.pos += skipped;\n        }\n        if (!m) { break }\n        pos += skipped + 1;\n        var txt$1 = (void 0);\n        if (m[0] == \"\\t\") {\n          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;\n          txt$1 = content.appendChild(elt(\"span\", spaceStr(tabWidth), \"cm-tab\"));\n          txt$1.setAttribute(\"role\", \"presentation\");\n          txt$1.setAttribute(\"cm-text\", \"\\t\");\n          builder.col += tabWidth;\n        } else if (m[0] == \"\\r\" || m[0] == \"\\n\") {\n          txt$1 = content.appendChild(elt(\"span\", m[0] == \"\\r\" ? \"\\u240d\" : \"\\u2424\", \"cm-invalidchar\"));\n          txt$1.setAttribute(\"cm-text\", m[0]);\n          builder.col += 1;\n        } else {\n          txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);\n          txt$1.setAttribute(\"cm-text\", m[0]);\n          if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt$1])); }\n          else { content.appendChild(txt$1); }\n          builder.col += 1;\n        }\n        builder.map.push(builder.pos, builder.pos + 1, txt$1);\n        builder.pos++;\n      }\n    }\n    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;\n    if (style || startStyle || endStyle || mustWrap || css) {\n      var fullStyle = style || \"\";\n      if (startStyle) { fullStyle += startStyle; }\n      if (endStyle) { fullStyle += endStyle; }\n      var token = elt(\"span\", [content], fullStyle, css);\n      if (attributes) {\n        for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != \"style\" && attr != \"class\")\n          { token.setAttribute(attr, attributes[attr]); } }\n      }\n      return builder.content.appendChild(token)\n    }\n    builder.content.appendChild(content);\n  }\n\n  // Change some spaces to NBSP to prevent the browser from collapsing\n  // trailing spaces at the end of a line when rendering text (issue #1362).\n  function splitSpaces(text, trailingBefore) {\n    if (text.length > 1 && !/  /.test(text)) { return text }\n    var spaceBefore = trailingBefore, result = \"\";\n    for (var i = 0; i < text.length; i++) {\n      var ch = text.charAt(i);\n      if (ch == \" \" && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))\n        { ch = \"\\u00a0\"; }\n      result += ch;\n      spaceBefore = ch == \" \";\n    }\n    return result\n  }\n\n  // Work around nonsense dimensions being reported for stretches of\n  // right-to-left text.\n  function buildTokenBadBidi(inner, order) {\n    return function (builder, text, style, startStyle, endStyle, css, attributes) {\n      style = style ? style + \" cm-force-border\" : \"cm-force-border\";\n      var start = builder.pos, end = start + text.length;\n      for (;;) {\n        // Find the part that overlaps with the start of this text\n        var part = (void 0);\n        for (var i = 0; i < order.length; i++) {\n          part = order[i];\n          if (part.to > start && part.from <= start) { break }\n        }\n        if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }\n        inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);\n        startStyle = null;\n        text = text.slice(part.to - start);\n        start = part.to;\n      }\n    }\n  }\n\n  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {\n    var widget = !ignoreWidget && marker.widgetNode;\n    if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }\n    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {\n      if (!widget)\n        { widget = builder.content.appendChild(document.createElement(\"span\")); }\n      widget.setAttribute(\"cm-marker\", marker.id);\n    }\n    if (widget) {\n      builder.cm.display.input.setUneditable(widget);\n      builder.content.appendChild(widget);\n    }\n    builder.pos += size;\n    builder.trailingSpace = false;\n  }\n\n  // Outputs a number of spans to make up a line, taking highlighting\n  // and marked text into account.\n  function insertLineContent(line, builder, styles) {\n    var spans = line.markedSpans, allText = line.text, at = 0;\n    if (!spans) {\n      for (var i$1 = 1; i$1 < styles.length; i$1+=2)\n        { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }\n      return\n    }\n\n    var len = allText.length, pos = 0, i = 1, text = \"\", style, css;\n    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;\n    for (;;) {\n      if (nextChange == pos) { // Update current marker set\n        spanStyle = spanEndStyle = spanStartStyle = css = \"\";\n        attributes = null;\n        collapsed = null; nextChange = Infinity;\n        var foundBookmarks = [], endStyles = (void 0);\n        for (var j = 0; j < spans.length; ++j) {\n          var sp = spans[j], m = sp.marker;\n          if (m.type == \"bookmark\" && sp.from == pos && m.widgetNode) {\n            foundBookmarks.push(m);\n          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {\n            if (sp.to != null && sp.to != pos && nextChange > sp.to) {\n              nextChange = sp.to;\n              spanEndStyle = \"\";\n            }\n            if (m.className) { spanStyle += \" \" + m.className; }\n            if (m.css) { css = (css ? css + \";\" : \"\") + m.css; }\n            if (m.startStyle && sp.from == pos) { spanStartStyle += \" \" + m.startStyle; }\n            if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }\n            // support for the old title property\n            // https://github.com/codemirror/CodeMirror/pull/5673\n            if (m.title) { (attributes || (attributes = {})).title = m.title; }\n            if (m.attributes) {\n              for (var attr in m.attributes)\n                { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }\n            }\n            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))\n              { collapsed = sp; }\n          } else if (sp.from > pos && nextChange > sp.from) {\n            nextChange = sp.from;\n          }\n        }\n        if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)\n          { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += \" \" + endStyles[j$1]; } } }\n\n        if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)\n          { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }\n        if (collapsed && (collapsed.from || 0) == pos) {\n          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,\n                             collapsed.marker, collapsed.from == null);\n          if (collapsed.to == null) { return }\n          if (collapsed.to == pos) { collapsed = false; }\n        }\n      }\n      if (pos >= len) { break }\n\n      var upto = Math.min(len, nextChange);\n      while (true) {\n        if (text) {\n          var end = pos + text.length;\n          if (!collapsed) {\n            var tokenText = end > upto ? text.slice(0, upto - pos) : text;\n            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,\n                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : \"\", css, attributes);\n          }\n          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}\n          pos = end;\n          spanStartStyle = \"\";\n        }\n        text = allText.slice(at, at = styles[i++]);\n        style = interpretTokenStyle(styles[i++], builder.cm.options);\n      }\n    }\n  }\n\n\n  // These objects are used to represent the visible (currently drawn)\n  // part of the document. A LineView may correspond to multiple\n  // logical lines, if those are connected by collapsed ranges.\n  function LineView(doc, line, lineN) {\n    // The starting line\n    this.line = line;\n    // Continuing lines, if any\n    this.rest = visualLineContinued(line);\n    // Number of logical lines in this visual line\n    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;\n    this.node = this.text = null;\n    this.hidden = lineIsHidden(doc, line);\n  }\n\n  // Create a range of LineView objects for the given lines.\n  function buildViewArray(cm, from, to) {\n    var array = [], nextPos;\n    for (var pos = from; pos < to; pos = nextPos) {\n      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);\n      nextPos = pos + view.size;\n      array.push(view);\n    }\n    return array\n  }\n\n  var operationGroup = null;\n\n  function pushOperation(op) {\n    if (operationGroup) {\n      operationGroup.ops.push(op);\n    } else {\n      op.ownsGroup = operationGroup = {\n        ops: [op],\n        delayedCallbacks: []\n      };\n    }\n  }\n\n  function fireCallbacksForOps(group) {\n    // Calls delayed callbacks and cursorActivity handlers until no\n    // new ones appear\n    var callbacks = group.delayedCallbacks, i = 0;\n    do {\n      for (; i < callbacks.length; i++)\n        { callbacks[i].call(null); }\n      for (var j = 0; j < group.ops.length; j++) {\n        var op = group.ops[j];\n        if (op.cursorActivityHandlers)\n          { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)\n            { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }\n      }\n    } while (i < callbacks.length)\n  }\n\n  function finishOperation(op, endCb) {\n    var group = op.ownsGroup;\n    if (!group) { return }\n\n    try { fireCallbacksForOps(group); }\n    finally {\n      operationGroup = null;\n      endCb(group);\n    }\n  }\n\n  var orphanDelayedCallbacks = null;\n\n  // Often, we want to signal events at a point where we are in the\n  // middle of some work, but don't want the handler to start calling\n  // other methods on the editor, which might be in an inconsistent\n  // state or simply not expect any other events to happen.\n  // signalLater looks whether there are any handlers, and schedules\n  // them to be executed when the last operation ends, or, if no\n  // operation is active, when a timeout fires.\n  function signalLater(emitter, type /*, values...*/) {\n    var arr = getHandlers(emitter, type);\n    if (!arr.length) { return }\n    var args = Array.prototype.slice.call(arguments, 2), list;\n    if (operationGroup) {\n      list = operationGroup.delayedCallbacks;\n    } else if (orphanDelayedCallbacks) {\n      list = orphanDelayedCallbacks;\n    } else {\n      list = orphanDelayedCallbacks = [];\n      setTimeout(fireOrphanDelayed, 0);\n    }\n    var loop = function ( i ) {\n      list.push(function () { return arr[i].apply(null, args); });\n    };\n\n    for (var i = 0; i < arr.length; ++i)\n      loop( i );\n  }\n\n  function fireOrphanDelayed() {\n    var delayed = orphanDelayedCallbacks;\n    orphanDelayedCallbacks = null;\n    for (var i = 0; i < delayed.length; ++i) { delayed[i](); }\n  }\n\n  // When an aspect of a line changes, a string is added to\n  // lineView.changes. This updates the relevant part of the line's\n  // DOM structure.\n  function updateLineForChanges(cm, lineView, lineN, dims) {\n    for (var j = 0; j < lineView.changes.length; j++) {\n      var type = lineView.changes[j];\n      if (type == \"text\") { updateLineText(cm, lineView); }\n      else if (type == \"gutter\") { updateLineGutter(cm, lineView, lineN, dims); }\n      else if (type == \"class\") { updateLineClasses(cm, lineView); }\n      else if (type == \"widget\") { updateLineWidgets(cm, lineView, dims); }\n    }\n    lineView.changes = null;\n  }\n\n  // Lines with gutter elements, widgets or a background class need to\n  // be wrapped, and have the extra elements added to the wrapper div\n  function ensureLineWrapped(lineView) {\n    if (lineView.node == lineView.text) {\n      lineView.node = elt(\"div\", null, null, \"position: relative\");\n      if (lineView.text.parentNode)\n        { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }\n      lineView.node.appendChild(lineView.text);\n      if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }\n    }\n    return lineView.node\n  }\n\n  function updateLineBackground(cm, lineView) {\n    var cls = lineView.bgClass ? lineView.bgClass + \" \" + (lineView.line.bgClass || \"\") : lineView.line.bgClass;\n    if (cls) { cls += \" CodeMirror-linebackground\"; }\n    if (lineView.background) {\n      if (cls) { lineView.background.className = cls; }\n      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }\n    } else if (cls) {\n      var wrap = ensureLineWrapped(lineView);\n      lineView.background = wrap.insertBefore(elt(\"div\", null, cls), wrap.firstChild);\n      cm.display.input.setUneditable(lineView.background);\n    }\n  }\n\n  // Wrapper around buildLineContent which will reuse the structure\n  // in display.externalMeasured when possible.\n  function getLineContent(cm, lineView) {\n    var ext = cm.display.externalMeasured;\n    if (ext && ext.line == lineView.line) {\n      cm.display.externalMeasured = null;\n      lineView.measure = ext.measure;\n      return ext.built\n    }\n    return buildLineContent(cm, lineView)\n  }\n\n  // Redraw the line's text. Interacts with the background and text\n  // classes because the mode may output tokens that influence these\n  // classes.\n  function updateLineText(cm, lineView) {\n    var cls = lineView.text.className;\n    var built = getLineContent(cm, lineView);\n    if (lineView.text == lineView.node) { lineView.node = built.pre; }\n    lineView.text.parentNode.replaceChild(built.pre, lineView.text);\n    lineView.text = built.pre;\n    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {\n      lineView.bgClass = built.bgClass;\n      lineView.textClass = built.textClass;\n      updateLineClasses(cm, lineView);\n    } else if (cls) {\n      lineView.text.className = cls;\n    }\n  }\n\n  function updateLineClasses(cm, lineView) {\n    updateLineBackground(cm, lineView);\n    if (lineView.line.wrapClass)\n      { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }\n    else if (lineView.node != lineView.text)\n      { lineView.node.className = \"\"; }\n    var textClass = lineView.textClass ? lineView.textClass + \" \" + (lineView.line.textClass || \"\") : lineView.line.textClass;\n    lineView.text.className = textClass || \"\";\n  }\n\n  function updateLineGutter(cm, lineView, lineN, dims) {\n    if (lineView.gutter) {\n      lineView.node.removeChild(lineView.gutter);\n      lineView.gutter = null;\n    }\n    if (lineView.gutterBackground) {\n      lineView.node.removeChild(lineView.gutterBackground);\n      lineView.gutterBackground = null;\n    }\n    if (lineView.line.gutterClass) {\n      var wrap = ensureLineWrapped(lineView);\n      lineView.gutterBackground = elt(\"div\", null, \"CodeMirror-gutter-background \" + lineView.line.gutterClass,\n                                      (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px; width: \" + (dims.gutterTotalWidth) + \"px\"));\n      cm.display.input.setUneditable(lineView.gutterBackground);\n      wrap.insertBefore(lineView.gutterBackground, lineView.text);\n    }\n    var markers = lineView.line.gutterMarkers;\n    if (cm.options.lineNumbers || markers) {\n      var wrap$1 = ensureLineWrapped(lineView);\n      var gutterWrap = lineView.gutter = elt(\"div\", null, \"CodeMirror-gutter-wrapper\", (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px\"));\n      cm.display.input.setUneditable(gutterWrap);\n      wrap$1.insertBefore(gutterWrap, lineView.text);\n      if (lineView.line.gutterClass)\n        { gutterWrap.className += \" \" + lineView.line.gutterClass; }\n      if (cm.options.lineNumbers && (!markers || !markers[\"CodeMirror-linenumbers\"]))\n        { lineView.lineNumber = gutterWrap.appendChild(\n          elt(\"div\", lineNumberFor(cm.options, lineN),\n              \"CodeMirror-linenumber CodeMirror-gutter-elt\",\n              (\"left: \" + (dims.gutterLeft[\"CodeMirror-linenumbers\"]) + \"px; width: \" + (cm.display.lineNumInnerWidth) + \"px\"))); }\n      if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {\n        var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];\n        if (found)\n          { gutterWrap.appendChild(elt(\"div\", [found], \"CodeMirror-gutter-elt\",\n                                     (\"left: \" + (dims.gutterLeft[id]) + \"px; width: \" + (dims.gutterWidth[id]) + \"px\"))); }\n      } }\n    }\n  }\n\n  function updateLineWidgets(cm, lineView, dims) {\n    if (lineView.alignable) { lineView.alignable = null; }\n    for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {\n      next = node.nextSibling;\n      if (node.className == \"CodeMirror-linewidget\")\n        { lineView.node.removeChild(node); }\n    }\n    insertLineWidgets(cm, lineView, dims);\n  }\n\n  // Build a line's DOM representation from scratch\n  function buildLineElement(cm, lineView, lineN, dims) {\n    var built = getLineContent(cm, lineView);\n    lineView.text = lineView.node = built.pre;\n    if (built.bgClass) { lineView.bgClass = built.bgClass; }\n    if (built.textClass) { lineView.textClass = built.textClass; }\n\n    updateLineClasses(cm, lineView);\n    updateLineGutter(cm, lineView, lineN, dims);\n    insertLineWidgets(cm, lineView, dims);\n    return lineView.node\n  }\n\n  // A lineView may contain multiple logical lines (when merged by\n  // collapsed spans). The widgets for all of them need to be drawn.\n  function insertLineWidgets(cm, lineView, dims) {\n    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);\n    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n      { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }\n  }\n\n  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {\n    if (!line.widgets) { return }\n    var wrap = ensureLineWrapped(lineView);\n    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {\n      var widget = ws[i], node = elt(\"div\", [widget.node], \"CodeMirror-linewidget\");\n      if (!widget.handleMouseEvents) { node.setAttribute(\"cm-ignore-events\", \"true\"); }\n      positionLineWidget(widget, node, lineView, dims);\n      cm.display.input.setUneditable(node);\n      if (allowAbove && widget.above)\n        { wrap.insertBefore(node, lineView.gutter || lineView.text); }\n      else\n        { wrap.appendChild(node); }\n      signalLater(widget, \"redraw\");\n    }\n  }\n\n  function positionLineWidget(widget, node, lineView, dims) {\n    if (widget.noHScroll) {\n  (lineView.alignable || (lineView.alignable = [])).push(node);\n      var width = dims.wrapperWidth;\n      node.style.left = dims.fixedPos + \"px\";\n      if (!widget.coverGutter) {\n        width -= dims.gutterTotalWidth;\n        node.style.paddingLeft = dims.gutterTotalWidth + \"px\";\n      }\n      node.style.width = width + \"px\";\n    }\n    if (widget.coverGutter) {\n      node.style.zIndex = 5;\n      node.style.position = \"relative\";\n      if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + \"px\"; }\n    }\n  }\n\n  function widgetHeight(widget) {\n    if (widget.height != null) { return widget.height }\n    var cm = widget.doc.cm;\n    if (!cm) { return 0 }\n    if (!contains(document.body, widget.node)) {\n      var parentStyle = \"position: relative;\";\n      if (widget.coverGutter)\n        { parentStyle += \"margin-left: -\" + cm.display.gutters.offsetWidth + \"px;\"; }\n      if (widget.noHScroll)\n        { parentStyle += \"width: \" + cm.display.wrapper.clientWidth + \"px;\"; }\n      removeChildrenAndAdd(cm.display.measure, elt(\"div\", [widget.node], null, parentStyle));\n    }\n    return widget.height = widget.node.parentNode.offsetHeight\n  }\n\n  // Return true when the given mouse event happened in a widget\n  function eventInWidget(display, e) {\n    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {\n      if (!n || (n.nodeType == 1 && n.getAttribute(\"cm-ignore-events\") == \"true\") ||\n          (n.parentNode == display.sizer && n != display.mover))\n        { return true }\n    }\n  }\n\n  // POSITION MEASUREMENT\n\n  function paddingTop(display) {return display.lineSpace.offsetTop}\n  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}\n  function paddingH(display) {\n    if (display.cachedPaddingH) { return display.cachedPaddingH }\n    var e = removeChildrenAndAdd(display.measure, elt(\"pre\", \"x\", \"CodeMirror-line-like\"));\n    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;\n    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};\n    if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }\n    return data\n  }\n\n  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }\n  function displayWidth(cm) {\n    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth\n  }\n  function displayHeight(cm) {\n    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight\n  }\n\n  // Ensure the lineView.wrapping.heights array is populated. This is\n  // an array of bottom offsets for the lines that make up a drawn\n  // line. When lineWrapping is on, there might be more than one\n  // height.\n  function ensureLineHeights(cm, lineView, rect) {\n    var wrapping = cm.options.lineWrapping;\n    var curWidth = wrapping && displayWidth(cm);\n    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {\n      var heights = lineView.measure.heights = [];\n      if (wrapping) {\n        lineView.measure.width = curWidth;\n        var rects = lineView.text.firstChild.getClientRects();\n        for (var i = 0; i < rects.length - 1; i++) {\n          var cur = rects[i], next = rects[i + 1];\n          if (Math.abs(cur.bottom - next.bottom) > 2)\n            { heights.push((cur.bottom + next.top) / 2 - rect.top); }\n        }\n      }\n      heights.push(rect.bottom - rect.top);\n    }\n  }\n\n  // Find a line map (mapping character offsets to text nodes) and a\n  // measurement cache for the given line number. (A line view might\n  // contain multiple lines when collapsed ranges are present.)\n  function mapFromLineView(lineView, line, lineN) {\n    if (lineView.line == line)\n      { return {map: lineView.measure.map, cache: lineView.measure.cache} }\n    for (var i = 0; i < lineView.rest.length; i++)\n      { if (lineView.rest[i] == line)\n        { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }\n    for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)\n      { if (lineNo(lineView.rest[i$1]) > lineN)\n        { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }\n  }\n\n  // Render a line into the hidden node display.externalMeasured. Used\n  // when measurement is needed for a line that's not in the viewport.\n  function updateExternalMeasurement(cm, line) {\n    line = visualLine(line);\n    var lineN = lineNo(line);\n    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);\n    view.lineN = lineN;\n    var built = view.built = buildLineContent(cm, view);\n    view.text = built.pre;\n    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);\n    return view\n  }\n\n  // Get a {top, bottom, left, right} box (in line-local coordinates)\n  // for a given character.\n  function measureChar(cm, line, ch, bias) {\n    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)\n  }\n\n  // Find a line view that corresponds to the given line number.\n  function findViewForLine(cm, lineN) {\n    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)\n      { return cm.display.view[findViewIndex(cm, lineN)] }\n    var ext = cm.display.externalMeasured;\n    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)\n      { return ext }\n  }\n\n  // Measurement can be split in two steps, the set-up work that\n  // applies to the whole line, and the measurement of the actual\n  // character. Functions like coordsChar, that need to do a lot of\n  // measurements in a row, can thus ensure that the set-up work is\n  // only done once.\n  function prepareMeasureForLine(cm, line) {\n    var lineN = lineNo(line);\n    var view = findViewForLine(cm, lineN);\n    if (view && !view.text) {\n      view = null;\n    } else if (view && view.changes) {\n      updateLineForChanges(cm, view, lineN, getDimensions(cm));\n      cm.curOp.forceUpdate = true;\n    }\n    if (!view)\n      { view = updateExternalMeasurement(cm, line); }\n\n    var info = mapFromLineView(view, line, lineN);\n    return {\n      line: line, view: view, rect: null,\n      map: info.map, cache: info.cache, before: info.before,\n      hasHeights: false\n    }\n  }\n\n  // Given a prepared measurement object, measures the position of an\n  // actual character (or fetches it from the cache).\n  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {\n    if (prepared.before) { ch = -1; }\n    var key = ch + (bias || \"\"), found;\n    if (prepared.cache.hasOwnProperty(key)) {\n      found = prepared.cache[key];\n    } else {\n      if (!prepared.rect)\n        { prepared.rect = prepared.view.text.getBoundingClientRect(); }\n      if (!prepared.hasHeights) {\n        ensureLineHeights(cm, prepared.view, prepared.rect);\n        prepared.hasHeights = true;\n      }\n      found = measureCharInner(cm, prepared, ch, bias);\n      if (!found.bogus) { prepared.cache[key] = found; }\n    }\n    return {left: found.left, right: found.right,\n            top: varHeight ? found.rtop : found.top,\n            bottom: varHeight ? found.rbottom : found.bottom}\n  }\n\n  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};\n\n  function nodeAndOffsetInLineMap(map$$1, ch, bias) {\n    var node, start, end, collapse, mStart, mEnd;\n    // First, search the line map for the text node corresponding to,\n    // or closest to, the target character.\n    for (var i = 0; i < map$$1.length; i += 3) {\n      mStart = map$$1[i];\n      mEnd = map$$1[i + 1];\n      if (ch < mStart) {\n        start = 0; end = 1;\n        collapse = \"left\";\n      } else if (ch < mEnd) {\n        start = ch - mStart;\n        end = start + 1;\n      } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) {\n        end = mEnd - mStart;\n        start = end - 1;\n        if (ch >= mEnd) { collapse = \"right\"; }\n      }\n      if (start != null) {\n        node = map$$1[i + 2];\n        if (mStart == mEnd && bias == (node.insertLeft ? \"left\" : \"right\"))\n          { collapse = bias; }\n        if (bias == \"left\" && start == 0)\n          { while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) {\n            node = map$$1[(i -= 3) + 2];\n            collapse = \"left\";\n          } }\n        if (bias == \"right\" && start == mEnd - mStart)\n          { while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) {\n            node = map$$1[(i += 3) + 2];\n            collapse = \"right\";\n          } }\n        break\n      }\n    }\n    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}\n  }\n\n  function getUsefulRect(rects, bias) {\n    var rect = nullRect;\n    if (bias == \"left\") { for (var i = 0; i < rects.length; i++) {\n      if ((rect = rects[i]).left != rect.right) { break }\n    } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {\n      if ((rect = rects[i$1]).left != rect.right) { break }\n    } }\n    return rect\n  }\n\n  function measureCharInner(cm, prepared, ch, bias) {\n    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);\n    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;\n\n    var rect;\n    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.\n      for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned\n        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }\n        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }\n        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)\n          { rect = node.parentNode.getBoundingClientRect(); }\n        else\n          { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }\n        if (rect.left || rect.right || start == 0) { break }\n        end = start;\n        start = start - 1;\n        collapse = \"right\";\n      }\n      if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }\n    } else { // If it is a widget, simply get the box for the whole widget.\n      if (start > 0) { collapse = bias = \"right\"; }\n      var rects;\n      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)\n        { rect = rects[bias == \"right\" ? rects.length - 1 : 0]; }\n      else\n        { rect = node.getBoundingClientRect(); }\n    }\n    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {\n      var rSpan = node.parentNode.getClientRects()[0];\n      if (rSpan)\n        { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }\n      else\n        { rect = nullRect; }\n    }\n\n    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;\n    var mid = (rtop + rbot) / 2;\n    var heights = prepared.view.measure.heights;\n    var i = 0;\n    for (; i < heights.length - 1; i++)\n      { if (mid < heights[i]) { break } }\n    var top = i ? heights[i - 1] : 0, bot = heights[i];\n    var result = {left: (collapse == \"right\" ? rect.right : rect.left) - prepared.rect.left,\n                  right: (collapse == \"left\" ? rect.left : rect.right) - prepared.rect.left,\n                  top: top, bottom: bot};\n    if (!rect.left && !rect.right) { result.bogus = true; }\n    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }\n\n    return result\n  }\n\n  // Work around problem with bounding client rects on ranges being\n  // returned incorrectly when zoomed on IE10 and below.\n  function maybeUpdateRectForZooming(measure, rect) {\n    if (!window.screen || screen.logicalXDPI == null ||\n        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))\n      { return rect }\n    var scaleX = screen.logicalXDPI / screen.deviceXDPI;\n    var scaleY = screen.logicalYDPI / screen.deviceYDPI;\n    return {left: rect.left * scaleX, right: rect.right * scaleX,\n            top: rect.top * scaleY, bottom: rect.bottom * scaleY}\n  }\n\n  function clearLineMeasurementCacheFor(lineView) {\n    if (lineView.measure) {\n      lineView.measure.cache = {};\n      lineView.measure.heights = null;\n      if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n        { lineView.measure.caches[i] = {}; } }\n    }\n  }\n\n  function clearLineMeasurementCache(cm) {\n    cm.display.externalMeasure = null;\n    removeChildren(cm.display.lineMeasure);\n    for (var i = 0; i < cm.display.view.length; i++)\n      { clearLineMeasurementCacheFor(cm.display.view[i]); }\n  }\n\n  function clearCaches(cm) {\n    clearLineMeasurementCache(cm);\n    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;\n    if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }\n    cm.display.lineNumChars = null;\n  }\n\n  function pageScrollX() {\n    // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206\n    // which causes page_Offset and bounding client rects to use\n    // different reference viewports and invalidate our calculations.\n    if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }\n    return window.pageXOffset || (document.documentElement || document.body).scrollLeft\n  }\n  function pageScrollY() {\n    if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }\n    return window.pageYOffset || (document.documentElement || document.body).scrollTop\n  }\n\n  function widgetTopHeight(lineObj) {\n    var height = 0;\n    if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)\n      { height += widgetHeight(lineObj.widgets[i]); } } }\n    return height\n  }\n\n  // Converts a {top, bottom, left, right} box from line-local\n  // coordinates into another coordinate system. Context may be one of\n  // \"line\", \"div\" (display.lineDiv), \"local\"./null (editor), \"window\",\n  // or \"page\".\n  function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {\n    if (!includeWidgets) {\n      var height = widgetTopHeight(lineObj);\n      rect.top += height; rect.bottom += height;\n    }\n    if (context == \"line\") { return rect }\n    if (!context) { context = \"local\"; }\n    var yOff = heightAtLine(lineObj);\n    if (context == \"local\") { yOff += paddingTop(cm.display); }\n    else { yOff -= cm.display.viewOffset; }\n    if (context == \"page\" || context == \"window\") {\n      var lOff = cm.display.lineSpace.getBoundingClientRect();\n      yOff += lOff.top + (context == \"window\" ? 0 : pageScrollY());\n      var xOff = lOff.left + (context == \"window\" ? 0 : pageScrollX());\n      rect.left += xOff; rect.right += xOff;\n    }\n    rect.top += yOff; rect.bottom += yOff;\n    return rect\n  }\n\n  // Coverts a box from \"div\" coords to another coordinate system.\n  // Context may be \"window\", \"page\", \"div\", or \"local\"./null.\n  function fromCoordSystem(cm, coords, context) {\n    if (context == \"div\") { return coords }\n    var left = coords.left, top = coords.top;\n    // First move into \"page\" coordinate system\n    if (context == \"page\") {\n      left -= pageScrollX();\n      top -= pageScrollY();\n    } else if (context == \"local\" || !context) {\n      var localBox = cm.display.sizer.getBoundingClientRect();\n      left += localBox.left;\n      top += localBox.top;\n    }\n\n    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();\n    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}\n  }\n\n  function charCoords(cm, pos, context, lineObj, bias) {\n    if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }\n    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)\n  }\n\n  // Returns a box for a given cursor position, which may have an\n  // 'other' property containing the position of the secondary cursor\n  // on a bidi boundary.\n  // A cursor Pos(line, char, \"before\") is on the same visual line as `char - 1`\n  // and after `char - 1` in writing order of `char - 1`\n  // A cursor Pos(line, char, \"after\") is on the same visual line as `char`\n  // and before `char` in writing order of `char`\n  // Examples (upper-case letters are RTL, lower-case are LTR):\n  //     Pos(0, 1, ...)\n  //     before   after\n  // ab     a|b     a|b\n  // aB     a|B     aB|\n  // Ab     |Ab     A|b\n  // AB     B|A     B|A\n  // Every position after the last character on a line is considered to stick\n  // to the last character on the line.\n  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {\n    lineObj = lineObj || getLine(cm.doc, pos.line);\n    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }\n    function get(ch, right) {\n      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? \"right\" : \"left\", varHeight);\n      if (right) { m.left = m.right; } else { m.right = m.left; }\n      return intoCoordSystem(cm, lineObj, m, context)\n    }\n    var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;\n    if (ch >= lineObj.text.length) {\n      ch = lineObj.text.length;\n      sticky = \"before\";\n    } else if (ch <= 0) {\n      ch = 0;\n      sticky = \"after\";\n    }\n    if (!order) { return get(sticky == \"before\" ? ch - 1 : ch, sticky == \"before\") }\n\n    function getBidi(ch, partPos, invert) {\n      var part = order[partPos], right = part.level == 1;\n      return get(invert ? ch - 1 : ch, right != invert)\n    }\n    var partPos = getBidiPartAt(order, ch, sticky);\n    var other = bidiOther;\n    var val = getBidi(ch, partPos, sticky == \"before\");\n    if (other != null) { val.other = getBidi(ch, other, sticky != \"before\"); }\n    return val\n  }\n\n  // Used to cheaply estimate the coordinates for a position. Used for\n  // intermediate scroll updates.\n  function estimateCoords(cm, pos) {\n    var left = 0;\n    pos = clipPos(cm.doc, pos);\n    if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }\n    var lineObj = getLine(cm.doc, pos.line);\n    var top = heightAtLine(lineObj) + paddingTop(cm.display);\n    return {left: left, right: left, top: top, bottom: top + lineObj.height}\n  }\n\n  // Positions returned by coordsChar contain some extra information.\n  // xRel is the relative x position of the input coordinates compared\n  // to the found position (so xRel > 0 means the coordinates are to\n  // the right of the character position, for example). When outside\n  // is true, that means the coordinates lie outside the line's\n  // vertical range.\n  function PosWithInfo(line, ch, sticky, outside, xRel) {\n    var pos = Pos(line, ch, sticky);\n    pos.xRel = xRel;\n    if (outside) { pos.outside = outside; }\n    return pos\n  }\n\n  // Compute the character position closest to the given coordinates.\n  // Input must be lineSpace-local (\"div\" coordinate system).\n  function coordsChar(cm, x, y) {\n    var doc = cm.doc;\n    y += cm.display.viewOffset;\n    if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }\n    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;\n    if (lineN > last)\n      { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }\n    if (x < 0) { x = 0; }\n\n    var lineObj = getLine(doc, lineN);\n    for (;;) {\n      var found = coordsCharInner(cm, lineObj, lineN, x, y);\n      var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));\n      if (!collapsed) { return found }\n      var rangeEnd = collapsed.find(1);\n      if (rangeEnd.line == lineN) { return rangeEnd }\n      lineObj = getLine(doc, lineN = rangeEnd.line);\n    }\n  }\n\n  function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {\n    y -= widgetTopHeight(lineObj);\n    var end = lineObj.text.length;\n    var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);\n    end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);\n    return {begin: begin, end: end}\n  }\n\n  function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {\n    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }\n    var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), \"line\").top;\n    return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)\n  }\n\n  // Returns true if the given side of a box is after the given\n  // coordinates, in top-to-bottom, left-to-right order.\n  function boxIsAfter(box, x, y, left) {\n    return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x\n  }\n\n  function coordsCharInner(cm, lineObj, lineNo$$1, x, y) {\n    // Move y into line-local coordinate space\n    y -= heightAtLine(lineObj);\n    var preparedMeasure = prepareMeasureForLine(cm, lineObj);\n    // When directly calling `measureCharPrepared`, we have to adjust\n    // for the widgets at this line.\n    var widgetHeight$$1 = widgetTopHeight(lineObj);\n    var begin = 0, end = lineObj.text.length, ltr = true;\n\n    var order = getOrder(lineObj, cm.doc.direction);\n    // If the line isn't plain left-to-right text, first figure out\n    // which bidi section the coordinates fall into.\n    if (order) {\n      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)\n                   (cm, lineObj, lineNo$$1, preparedMeasure, order, x, y);\n      ltr = part.level != 1;\n      // The awkward -1 offsets are needed because findFirst (called\n      // on these below) will treat its first bound as inclusive,\n      // second as exclusive, but we want to actually address the\n      // characters in the part's range\n      begin = ltr ? part.from : part.to - 1;\n      end = ltr ? part.to : part.from - 1;\n    }\n\n    // A binary search to find the first character whose bounding box\n    // starts after the coordinates. If we run across any whose box wrap\n    // the coordinates, store that.\n    var chAround = null, boxAround = null;\n    var ch = findFirst(function (ch) {\n      var box = measureCharPrepared(cm, preparedMeasure, ch);\n      box.top += widgetHeight$$1; box.bottom += widgetHeight$$1;\n      if (!boxIsAfter(box, x, y, false)) { return false }\n      if (box.top <= y && box.left <= x) {\n        chAround = ch;\n        boxAround = box;\n      }\n      return true\n    }, begin, end);\n\n    var baseX, sticky, outside = false;\n    // If a box around the coordinates was found, use that\n    if (boxAround) {\n      // Distinguish coordinates nearer to the left or right side of the box\n      var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;\n      ch = chAround + (atStart ? 0 : 1);\n      sticky = atStart ? \"after\" : \"before\";\n      baseX = atLeft ? boxAround.left : boxAround.right;\n    } else {\n      // (Adjust for extended bound, if necessary.)\n      if (!ltr && (ch == end || ch == begin)) { ch++; }\n      // To determine which side to associate with, get the box to the\n      // left of the character and compare it's vertical position to the\n      // coordinates\n      sticky = ch == 0 ? \"after\" : ch == lineObj.text.length ? \"before\" :\n        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y) == ltr ?\n        \"after\" : \"before\";\n      // Now get accurate coordinates for this place, in order to get a\n      // base X position\n      var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), \"line\", lineObj, preparedMeasure);\n      baseX = coords.left;\n      outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;\n    }\n\n    ch = skipExtendingChars(lineObj.text, ch, 1);\n    return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX)\n  }\n\n  function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) {\n    // Bidi parts are sorted left-to-right, and in a non-line-wrapping\n    // situation, we can take this ordering to correspond to the visual\n    // ordering. This finds the first part whose end is after the given\n    // coordinates.\n    var index = findFirst(function (i) {\n      var part = order[i], ltr = part.level != 1;\n      return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? \"before\" : \"after\"),\n                                     \"line\", lineObj, preparedMeasure), x, y, true)\n    }, 0, order.length - 1);\n    var part = order[index];\n    // If this isn't the first part, the part's start is also after\n    // the coordinates, and the coordinates aren't on the same line as\n    // that start, move one part back.\n    if (index > 0) {\n      var ltr = part.level != 1;\n      var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? \"after\" : \"before\"),\n                               \"line\", lineObj, preparedMeasure);\n      if (boxIsAfter(start, x, y, true) && start.top > y)\n        { part = order[index - 1]; }\n    }\n    return part\n  }\n\n  function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {\n    // In a wrapped line, rtl text on wrapping boundaries can do things\n    // that don't correspond to the ordering in our `order` array at\n    // all, so a binary search doesn't work, and we want to return a\n    // part that only spans one line so that the binary search in\n    // coordsCharInner is safe. As such, we first find the extent of the\n    // wrapped line, and then do a flat search in which we discard any\n    // spans that aren't on the line.\n    var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);\n    var begin = ref.begin;\n    var end = ref.end;\n    if (/\\s/.test(lineObj.text.charAt(end - 1))) { end--; }\n    var part = null, closestDist = null;\n    for (var i = 0; i < order.length; i++) {\n      var p = order[i];\n      if (p.from >= end || p.to <= begin) { continue }\n      var ltr = p.level != 1;\n      var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;\n      // Weigh against spans ending before this, so that they are only\n      // picked if nothing ends after\n      var dist = endX < x ? x - endX + 1e9 : endX - x;\n      if (!part || closestDist > dist) {\n        part = p;\n        closestDist = dist;\n      }\n    }\n    if (!part) { part = order[order.length - 1]; }\n    // Clip the part to the wrapped line.\n    if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }\n    if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }\n    return part\n  }\n\n  var measureText;\n  // Compute the default text height.\n  function textHeight(display) {\n    if (display.cachedTextHeight != null) { return display.cachedTextHeight }\n    if (measureText == null) {\n      measureText = elt(\"pre\", null, \"CodeMirror-line-like\");\n      // Measure a bunch of lines, for browsers that compute\n      // fractional heights.\n      for (var i = 0; i < 49; ++i) {\n        measureText.appendChild(document.createTextNode(\"x\"));\n        measureText.appendChild(elt(\"br\"));\n      }\n      measureText.appendChild(document.createTextNode(\"x\"));\n    }\n    removeChildrenAndAdd(display.measure, measureText);\n    var height = measureText.offsetHeight / 50;\n    if (height > 3) { display.cachedTextHeight = height; }\n    removeChildren(display.measure);\n    return height || 1\n  }\n\n  // Compute the default character width.\n  function charWidth(display) {\n    if (display.cachedCharWidth != null) { return display.cachedCharWidth }\n    var anchor = elt(\"span\", \"xxxxxxxxxx\");\n    var pre = elt(\"pre\", [anchor], \"CodeMirror-line-like\");\n    removeChildrenAndAdd(display.measure, pre);\n    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;\n    if (width > 2) { display.cachedCharWidth = width; }\n    return width || 10\n  }\n\n  // Do a bulk-read of the DOM positions and sizes needed to draw the\n  // view, so that we don't interleave reading and writing to the DOM.\n  function getDimensions(cm) {\n    var d = cm.display, left = {}, width = {};\n    var gutterLeft = d.gutters.clientLeft;\n    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {\n      var id = cm.display.gutterSpecs[i].className;\n      left[id] = n.offsetLeft + n.clientLeft + gutterLeft;\n      width[id] = n.clientWidth;\n    }\n    return {fixedPos: compensateForHScroll(d),\n            gutterTotalWidth: d.gutters.offsetWidth,\n            gutterLeft: left,\n            gutterWidth: width,\n            wrapperWidth: d.wrapper.clientWidth}\n  }\n\n  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,\n  // but using getBoundingClientRect to get a sub-pixel-accurate\n  // result.\n  function compensateForHScroll(display) {\n    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left\n  }\n\n  // Returns a function that estimates the height of a line, to use as\n  // first approximation until the line becomes visible (and is thus\n  // properly measurable).\n  function estimateHeight(cm) {\n    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;\n    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);\n    return function (line) {\n      if (lineIsHidden(cm.doc, line)) { return 0 }\n\n      var widgetsHeight = 0;\n      if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {\n        if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }\n      } }\n\n      if (wrapping)\n        { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }\n      else\n        { return widgetsHeight + th }\n    }\n  }\n\n  function estimateLineHeights(cm) {\n    var doc = cm.doc, est = estimateHeight(cm);\n    doc.iter(function (line) {\n      var estHeight = est(line);\n      if (estHeight != line.height) { updateLineHeight(line, estHeight); }\n    });\n  }\n\n  // Given a mouse event, find the corresponding position. If liberal\n  // is false, it checks whether a gutter or scrollbar was clicked,\n  // and returns null if it was. forRect is used by rectangular\n  // selections, and tries to estimate a character position even for\n  // coordinates beyond the right of the text.\n  function posFromMouse(cm, e, liberal, forRect) {\n    var display = cm.display;\n    if (!liberal && e_target(e).getAttribute(\"cm-not-content\") == \"true\") { return null }\n\n    var x, y, space = display.lineSpace.getBoundingClientRect();\n    // Fails unpredictably on IE[67] when mouse is dragged around quickly.\n    try { x = e.clientX - space.left; y = e.clientY - space.top; }\n    catch (e) { return null }\n    var coords = coordsChar(cm, x, y), line;\n    if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {\n      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;\n      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));\n    }\n    return coords\n  }\n\n  // Find the view element corresponding to a given line. Return null\n  // when the line isn't visible.\n  function findViewIndex(cm, n) {\n    if (n >= cm.display.viewTo) { return null }\n    n -= cm.display.viewFrom;\n    if (n < 0) { return null }\n    var view = cm.display.view;\n    for (var i = 0; i < view.length; i++) {\n      n -= view[i].size;\n      if (n < 0) { return i }\n    }\n  }\n\n  // Updates the display.view data structure for a given change to the\n  // document. From and to are in pre-change coordinates. Lendiff is\n  // the amount of lines added or subtracted by the change. This is\n  // used for changes that span multiple lines, or change the way\n  // lines are divided into visual lines. regLineChange (below)\n  // registers single-line changes.\n  function regChange(cm, from, to, lendiff) {\n    if (from == null) { from = cm.doc.first; }\n    if (to == null) { to = cm.doc.first + cm.doc.size; }\n    if (!lendiff) { lendiff = 0; }\n\n    var display = cm.display;\n    if (lendiff && to < display.viewTo &&\n        (display.updateLineNumbers == null || display.updateLineNumbers > from))\n      { display.updateLineNumbers = from; }\n\n    cm.curOp.viewChanged = true;\n\n    if (from >= display.viewTo) { // Change after\n      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)\n        { resetView(cm); }\n    } else if (to <= display.viewFrom) { // Change before\n      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {\n        resetView(cm);\n      } else {\n        display.viewFrom += lendiff;\n        display.viewTo += lendiff;\n      }\n    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap\n      resetView(cm);\n    } else if (from <= display.viewFrom) { // Top overlap\n      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);\n      if (cut) {\n        display.view = display.view.slice(cut.index);\n        display.viewFrom = cut.lineN;\n        display.viewTo += lendiff;\n      } else {\n        resetView(cm);\n      }\n    } else if (to >= display.viewTo) { // Bottom overlap\n      var cut$1 = viewCuttingPoint(cm, from, from, -1);\n      if (cut$1) {\n        display.view = display.view.slice(0, cut$1.index);\n        display.viewTo = cut$1.lineN;\n      } else {\n        resetView(cm);\n      }\n    } else { // Gap in the middle\n      var cutTop = viewCuttingPoint(cm, from, from, -1);\n      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);\n      if (cutTop && cutBot) {\n        display.view = display.view.slice(0, cutTop.index)\n          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))\n          .concat(display.view.slice(cutBot.index));\n        display.viewTo += lendiff;\n      } else {\n        resetView(cm);\n      }\n    }\n\n    var ext = display.externalMeasured;\n    if (ext) {\n      if (to < ext.lineN)\n        { ext.lineN += lendiff; }\n      else if (from < ext.lineN + ext.size)\n        { display.externalMeasured = null; }\n    }\n  }\n\n  // Register a change to a single line. Type must be one of \"text\",\n  // \"gutter\", \"class\", \"widget\"\n  function regLineChange(cm, line, type) {\n    cm.curOp.viewChanged = true;\n    var display = cm.display, ext = cm.display.externalMeasured;\n    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)\n      { display.externalMeasured = null; }\n\n    if (line < display.viewFrom || line >= display.viewTo) { return }\n    var lineView = display.view[findViewIndex(cm, line)];\n    if (lineView.node == null) { return }\n    var arr = lineView.changes || (lineView.changes = []);\n    if (indexOf(arr, type) == -1) { arr.push(type); }\n  }\n\n  // Clear the view.\n  function resetView(cm) {\n    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;\n    cm.display.view = [];\n    cm.display.viewOffset = 0;\n  }\n\n  function viewCuttingPoint(cm, oldN, newN, dir) {\n    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;\n    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)\n      { return {index: index, lineN: newN} }\n    var n = cm.display.viewFrom;\n    for (var i = 0; i < index; i++)\n      { n += view[i].size; }\n    if (n != oldN) {\n      if (dir > 0) {\n        if (index == view.length - 1) { return null }\n        diff = (n + view[index].size) - oldN;\n        index++;\n      } else {\n        diff = n - oldN;\n      }\n      oldN += diff; newN += diff;\n    }\n    while (visualLineNo(cm.doc, newN) != newN) {\n      if (index == (dir < 0 ? 0 : view.length - 1)) { return null }\n      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;\n      index += dir;\n    }\n    return {index: index, lineN: newN}\n  }\n\n  // Force the view to cover a given range, adding empty view element\n  // or clipping off existing ones as needed.\n  function adjustView(cm, from, to) {\n    var display = cm.display, view = display.view;\n    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {\n      display.view = buildViewArray(cm, from, to);\n      display.viewFrom = from;\n    } else {\n      if (display.viewFrom > from)\n        { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }\n      else if (display.viewFrom < from)\n        { display.view = display.view.slice(findViewIndex(cm, from)); }\n      display.viewFrom = from;\n      if (display.viewTo < to)\n        { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }\n      else if (display.viewTo > to)\n        { display.view = display.view.slice(0, findViewIndex(cm, to)); }\n    }\n    display.viewTo = to;\n  }\n\n  // Count the number of lines in the view whose DOM representation is\n  // out of date (or nonexistent).\n  function countDirtyView(cm) {\n    var view = cm.display.view, dirty = 0;\n    for (var i = 0; i < view.length; i++) {\n      var lineView = view[i];\n      if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }\n    }\n    return dirty\n  }\n\n  function updateSelection(cm) {\n    cm.display.input.showSelection(cm.display.input.prepareSelection());\n  }\n\n  function prepareSelection(cm, primary) {\n    if ( primary === void 0 ) primary = true;\n\n    var doc = cm.doc, result = {};\n    var curFragment = result.cursors = document.createDocumentFragment();\n    var selFragment = result.selection = document.createDocumentFragment();\n\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\n      if (!primary && i == doc.sel.primIndex) { continue }\n      var range$$1 = doc.sel.ranges[i];\n      if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue }\n      var collapsed = range$$1.empty();\n      if (collapsed || cm.options.showCursorWhenSelecting)\n        { drawSelectionCursor(cm, range$$1.head, curFragment); }\n      if (!collapsed)\n        { drawSelectionRange(cm, range$$1, selFragment); }\n    }\n    return result\n  }\n\n  // Draws a cursor for the given range\n  function drawSelectionCursor(cm, head, output) {\n    var pos = cursorCoords(cm, head, \"div\", null, null, !cm.options.singleCursorHeightPerLine);\n\n    var cursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor\"));\n    cursor.style.left = pos.left + \"px\";\n    cursor.style.top = pos.top + \"px\";\n    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + \"px\";\n\n    if (pos.other) {\n      // Secondary cursor, shown when on a 'jump' in bi-directional text\n      var otherCursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor CodeMirror-secondarycursor\"));\n      otherCursor.style.display = \"\";\n      otherCursor.style.left = pos.other.left + \"px\";\n      otherCursor.style.top = pos.other.top + \"px\";\n      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + \"px\";\n    }\n  }\n\n  function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }\n\n  // Draws the given range as a highlighted selection\n  function drawSelectionRange(cm, range$$1, output) {\n    var display = cm.display, doc = cm.doc;\n    var fragment = document.createDocumentFragment();\n    var padding = paddingH(cm.display), leftSide = padding.left;\n    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;\n    var docLTR = doc.direction == \"ltr\";\n\n    function add(left, top, width, bottom) {\n      if (top < 0) { top = 0; }\n      top = Math.round(top);\n      bottom = Math.round(bottom);\n      fragment.appendChild(elt(\"div\", null, \"CodeMirror-selected\", (\"position: absolute; left: \" + left + \"px;\\n                             top: \" + top + \"px; width: \" + (width == null ? rightSide - left : width) + \"px;\\n                             height: \" + (bottom - top) + \"px\")));\n    }\n\n    function drawForLine(line, fromArg, toArg) {\n      var lineObj = getLine(doc, line);\n      var lineLen = lineObj.text.length;\n      var start, end;\n      function coords(ch, bias) {\n        return charCoords(cm, Pos(line, ch), \"div\", lineObj, bias)\n      }\n\n      function wrapX(pos, dir, side) {\n        var extent = wrappedLineExtentChar(cm, lineObj, null, pos);\n        var prop = (dir == \"ltr\") == (side == \"after\") ? \"left\" : \"right\";\n        var ch = side == \"after\" ? extent.begin : extent.end - (/\\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);\n        return coords(ch, prop)[prop]\n      }\n\n      var order = getOrder(lineObj, doc.direction);\n      iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {\n        var ltr = dir == \"ltr\";\n        var fromPos = coords(from, ltr ? \"left\" : \"right\");\n        var toPos = coords(to - 1, ltr ? \"right\" : \"left\");\n\n        var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;\n        var first = i == 0, last = !order || i == order.length - 1;\n        if (toPos.top - fromPos.top <= 3) { // Single line\n          var openLeft = (docLTR ? openStart : openEnd) && first;\n          var openRight = (docLTR ? openEnd : openStart) && last;\n          var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;\n          var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;\n          add(left, fromPos.top, right - left, fromPos.bottom);\n        } else { // Multiple lines\n          var topLeft, topRight, botLeft, botRight;\n          if (ltr) {\n            topLeft = docLTR && openStart && first ? leftSide : fromPos.left;\n            topRight = docLTR ? rightSide : wrapX(from, dir, \"before\");\n            botLeft = docLTR ? leftSide : wrapX(to, dir, \"after\");\n            botRight = docLTR && openEnd && last ? rightSide : toPos.right;\n          } else {\n            topLeft = !docLTR ? leftSide : wrapX(from, dir, \"before\");\n            topRight = !docLTR && openStart && first ? rightSide : fromPos.right;\n            botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;\n            botRight = !docLTR ? rightSide : wrapX(to, dir, \"after\");\n          }\n          add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);\n          if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }\n          add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);\n        }\n\n        if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }\n        if (cmpCoords(toPos, start) < 0) { start = toPos; }\n        if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }\n        if (cmpCoords(toPos, end) < 0) { end = toPos; }\n      });\n      return {start: start, end: end}\n    }\n\n    var sFrom = range$$1.from(), sTo = range$$1.to();\n    if (sFrom.line == sTo.line) {\n      drawForLine(sFrom.line, sFrom.ch, sTo.ch);\n    } else {\n      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);\n      var singleVLine = visualLine(fromLine) == visualLine(toLine);\n      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;\n      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;\n      if (singleVLine) {\n        if (leftEnd.top < rightStart.top - 2) {\n          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);\n          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);\n        } else {\n          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);\n        }\n      }\n      if (leftEnd.bottom < rightStart.top)\n        { add(leftSide, leftEnd.bottom, null, rightStart.top); }\n    }\n\n    output.appendChild(fragment);\n  }\n\n  // Cursor-blinking\n  function restartBlink(cm) {\n    if (!cm.state.focused) { return }\n    var display = cm.display;\n    clearInterval(display.blinker);\n    var on = true;\n    display.cursorDiv.style.visibility = \"\";\n    if (cm.options.cursorBlinkRate > 0)\n      { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? \"\" : \"hidden\"; },\n        cm.options.cursorBlinkRate); }\n    else if (cm.options.cursorBlinkRate < 0)\n      { display.cursorDiv.style.visibility = \"hidden\"; }\n  }\n\n  function ensureFocus(cm) {\n    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }\n  }\n\n  function delayBlurEvent(cm) {\n    cm.state.delayingBlurEvent = true;\n    setTimeout(function () { if (cm.state.delayingBlurEvent) {\n      cm.state.delayingBlurEvent = false;\n      onBlur(cm);\n    } }, 100);\n  }\n\n  function onFocus(cm, e) {\n    if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }\n\n    if (cm.options.readOnly == \"nocursor\") { return }\n    if (!cm.state.focused) {\n      signal(cm, \"focus\", cm, e);\n      cm.state.focused = true;\n      addClass(cm.display.wrapper, \"CodeMirror-focused\");\n      // This test prevents this from firing when a context\n      // menu is closed (since the input reset would kill the\n      // select-all detection hack)\n      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {\n        cm.display.input.reset();\n        if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730\n      }\n      cm.display.input.receivedFocus();\n    }\n    restartBlink(cm);\n  }\n  function onBlur(cm, e) {\n    if (cm.state.delayingBlurEvent) { return }\n\n    if (cm.state.focused) {\n      signal(cm, \"blur\", cm, e);\n      cm.state.focused = false;\n      rmClass(cm.display.wrapper, \"CodeMirror-focused\");\n    }\n    clearInterval(cm.display.blinker);\n    setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);\n  }\n\n  // Read the actual heights of the rendered lines, and update their\n  // stored heights to match.\n  function updateHeightsInViewport(cm) {\n    var display = cm.display;\n    var prevBottom = display.lineDiv.offsetTop;\n    for (var i = 0; i < display.view.length; i++) {\n      var cur = display.view[i], wrapping = cm.options.lineWrapping;\n      var height = (void 0), width = 0;\n      if (cur.hidden) { continue }\n      if (ie && ie_version < 8) {\n        var bot = cur.node.offsetTop + cur.node.offsetHeight;\n        height = bot - prevBottom;\n        prevBottom = bot;\n      } else {\n        var box = cur.node.getBoundingClientRect();\n        height = box.bottom - box.top;\n        // Check that lines don't extend past the right of the current\n        // editor width\n        if (!wrapping && cur.text.firstChild)\n          { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }\n      }\n      var diff = cur.line.height - height;\n      if (diff > .005 || diff < -.005) {\n        updateLineHeight(cur.line, height);\n        updateWidgetHeight(cur.line);\n        if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)\n          { updateWidgetHeight(cur.rest[j]); } }\n      }\n      if (width > cm.display.sizerWidth) {\n        var chWidth = Math.ceil(width / charWidth(cm.display));\n        if (chWidth > cm.display.maxLineLength) {\n          cm.display.maxLineLength = chWidth;\n          cm.display.maxLine = cur.line;\n          cm.display.maxLineChanged = true;\n        }\n      }\n    }\n  }\n\n  // Read and store the height of line widgets associated with the\n  // given line.\n  function updateWidgetHeight(line) {\n    if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {\n      var w = line.widgets[i], parent = w.node.parentNode;\n      if (parent) { w.height = parent.offsetHeight; }\n    } }\n  }\n\n  // Compute the lines that are visible in a given viewport (defaults\n  // the the current scroll position). viewport may contain top,\n  // height, and ensure (see op.scrollToPos) properties.\n  function visibleLines(display, doc, viewport) {\n    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;\n    top = Math.floor(top - paddingTop(display));\n    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;\n\n    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);\n    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and\n    // forces those lines into the viewport (if possible).\n    if (viewport && viewport.ensure) {\n      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;\n      if (ensureFrom < from) {\n        from = ensureFrom;\n        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);\n      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {\n        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);\n        to = ensureTo;\n      }\n    }\n    return {from: from, to: Math.max(to, from + 1)}\n  }\n\n  // SCROLLING THINGS INTO VIEW\n\n  // If an editor sits on the top or bottom of the window, partially\n  // scrolled out of view, this ensures that the cursor is visible.\n  function maybeScrollWindow(cm, rect) {\n    if (signalDOMEvent(cm, \"scrollCursorIntoView\")) { return }\n\n    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;\n    if (rect.top + box.top < 0) { doScroll = true; }\n    else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }\n    if (doScroll != null && !phantom) {\n      var scrollNode = elt(\"div\", \"\\u200b\", null, (\"position: absolute;\\n                         top: \" + (rect.top - display.viewOffset - paddingTop(cm.display)) + \"px;\\n                         height: \" + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + \"px;\\n                         left: \" + (rect.left) + \"px; width: \" + (Math.max(2, rect.right - rect.left)) + \"px;\"));\n      cm.display.lineSpace.appendChild(scrollNode);\n      scrollNode.scrollIntoView(doScroll);\n      cm.display.lineSpace.removeChild(scrollNode);\n    }\n  }\n\n  // Scroll a given position into view (immediately), verifying that\n  // it actually became visible (as line heights are accurately\n  // measured, the position of something may 'drift' during drawing).\n  function scrollPosIntoView(cm, pos, end, margin) {\n    if (margin == null) { margin = 0; }\n    var rect;\n    if (!cm.options.lineWrapping && pos == end) {\n      // Set pos and end to the cursor positions around the character pos sticks to\n      // If pos.sticky == \"before\", that is around pos.ch - 1, otherwise around pos.ch\n      // If pos == Pos(_, 0, \"before\"), pos and end are unchanged\n      pos = pos.ch ? Pos(pos.line, pos.sticky == \"before\" ? pos.ch - 1 : pos.ch, \"after\") : pos;\n      end = pos.sticky == \"before\" ? Pos(pos.line, pos.ch + 1, \"before\") : pos;\n    }\n    for (var limit = 0; limit < 5; limit++) {\n      var changed = false;\n      var coords = cursorCoords(cm, pos);\n      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);\n      rect = {left: Math.min(coords.left, endCoords.left),\n              top: Math.min(coords.top, endCoords.top) - margin,\n              right: Math.max(coords.left, endCoords.left),\n              bottom: Math.max(coords.bottom, endCoords.bottom) + margin};\n      var scrollPos = calculateScrollPos(cm, rect);\n      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;\n      if (scrollPos.scrollTop != null) {\n        updateScrollTop(cm, scrollPos.scrollTop);\n        if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }\n      }\n      if (scrollPos.scrollLeft != null) {\n        setScrollLeft(cm, scrollPos.scrollLeft);\n        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }\n      }\n      if (!changed) { break }\n    }\n    return rect\n  }\n\n  // Scroll a given set of coordinates into view (immediately).\n  function scrollIntoView(cm, rect) {\n    var scrollPos = calculateScrollPos(cm, rect);\n    if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }\n    if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }\n  }\n\n  // Calculate a new scroll position needed to scroll the given\n  // rectangle into view. Returns an object with scrollTop and\n  // scrollLeft properties. When these are undefined, the\n  // vertical/horizontal position does not need to be adjusted.\n  function calculateScrollPos(cm, rect) {\n    var display = cm.display, snapMargin = textHeight(cm.display);\n    if (rect.top < 0) { rect.top = 0; }\n    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;\n    var screen = displayHeight(cm), result = {};\n    if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }\n    var docBottom = cm.doc.height + paddingVert(display);\n    var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;\n    if (rect.top < screentop) {\n      result.scrollTop = atTop ? 0 : rect.top;\n    } else if (rect.bottom > screentop + screen) {\n      var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);\n      if (newTop != screentop) { result.scrollTop = newTop; }\n    }\n\n    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;\n    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);\n    var tooWide = rect.right - rect.left > screenw;\n    if (tooWide) { rect.right = rect.left + screenw; }\n    if (rect.left < 10)\n      { result.scrollLeft = 0; }\n    else if (rect.left < screenleft)\n      { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); }\n    else if (rect.right > screenw + screenleft - 3)\n      { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }\n    return result\n  }\n\n  // Store a relative adjustment to the scroll position in the current\n  // operation (to be applied when the operation finishes).\n  function addToScrollTop(cm, top) {\n    if (top == null) { return }\n    resolveScrollToPos(cm);\n    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;\n  }\n\n  // Make sure that at the end of the operation the current cursor is\n  // shown.\n  function ensureCursorVisible(cm) {\n    resolveScrollToPos(cm);\n    var cur = cm.getCursor();\n    cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};\n  }\n\n  function scrollToCoords(cm, x, y) {\n    if (x != null || y != null) { resolveScrollToPos(cm); }\n    if (x != null) { cm.curOp.scrollLeft = x; }\n    if (y != null) { cm.curOp.scrollTop = y; }\n  }\n\n  function scrollToRange(cm, range$$1) {\n    resolveScrollToPos(cm);\n    cm.curOp.scrollToPos = range$$1;\n  }\n\n  // When an operation has its scrollToPos property set, and another\n  // scroll action is applied before the end of the operation, this\n  // 'simulates' scrolling that position into view in a cheap way, so\n  // that the effect of intermediate scroll commands is not ignored.\n  function resolveScrollToPos(cm) {\n    var range$$1 = cm.curOp.scrollToPos;\n    if (range$$1) {\n      cm.curOp.scrollToPos = null;\n      var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to);\n      scrollToCoordsRange(cm, from, to, range$$1.margin);\n    }\n  }\n\n  function scrollToCoordsRange(cm, from, to, margin) {\n    var sPos = calculateScrollPos(cm, {\n      left: Math.min(from.left, to.left),\n      top: Math.min(from.top, to.top) - margin,\n      right: Math.max(from.right, to.right),\n      bottom: Math.max(from.bottom, to.bottom) + margin\n    });\n    scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);\n  }\n\n  // Sync the scrollable area and scrollbars, ensure the viewport\n  // covers the visible area.\n  function updateScrollTop(cm, val) {\n    if (Math.abs(cm.doc.scrollTop - val) < 2) { return }\n    if (!gecko) { updateDisplaySimple(cm, {top: val}); }\n    setScrollTop(cm, val, true);\n    if (gecko) { updateDisplaySimple(cm); }\n    startWorker(cm, 100);\n  }\n\n  function setScrollTop(cm, val, forceScroll) {\n    val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val);\n    if (cm.display.scroller.scrollTop == val && !forceScroll) { return }\n    cm.doc.scrollTop = val;\n    cm.display.scrollbars.setScrollTop(val);\n    if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }\n  }\n\n  // Sync scroller and scrollbar, ensure the gutter elements are\n  // aligned.\n  function setScrollLeft(cm, val, isScroller, forceScroll) {\n    val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);\n    if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }\n    cm.doc.scrollLeft = val;\n    alignHorizontally(cm);\n    if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }\n    cm.display.scrollbars.setScrollLeft(val);\n  }\n\n  // SCROLLBARS\n\n  // Prepare DOM reads needed to update the scrollbars. Done in one\n  // shot to minimize update/measure roundtrips.\n  function measureForScrollbars(cm) {\n    var d = cm.display, gutterW = d.gutters.offsetWidth;\n    var docH = Math.round(cm.doc.height + paddingVert(cm.display));\n    return {\n      clientHeight: d.scroller.clientHeight,\n      viewHeight: d.wrapper.clientHeight,\n      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,\n      viewWidth: d.wrapper.clientWidth,\n      barLeft: cm.options.fixedGutter ? gutterW : 0,\n      docHeight: docH,\n      scrollHeight: docH + scrollGap(cm) + d.barHeight,\n      nativeBarWidth: d.nativeBarWidth,\n      gutterWidth: gutterW\n    }\n  }\n\n  var NativeScrollbars = function(place, scroll, cm) {\n    this.cm = cm;\n    var vert = this.vert = elt(\"div\", [elt(\"div\", null, null, \"min-width: 1px\")], \"CodeMirror-vscrollbar\");\n    var horiz = this.horiz = elt(\"div\", [elt(\"div\", null, null, \"height: 100%; min-height: 1px\")], \"CodeMirror-hscrollbar\");\n    vert.tabIndex = horiz.tabIndex = -1;\n    place(vert); place(horiz);\n\n    on(vert, \"scroll\", function () {\n      if (vert.clientHeight) { scroll(vert.scrollTop, \"vertical\"); }\n    });\n    on(horiz, \"scroll\", function () {\n      if (horiz.clientWidth) { scroll(horiz.scrollLeft, \"horizontal\"); }\n    });\n\n    this.checkedZeroWidth = false;\n    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).\n    if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = \"18px\"; }\n  };\n\n  NativeScrollbars.prototype.update = function (measure) {\n    var needsH = measure.scrollWidth > measure.clientWidth + 1;\n    var needsV = measure.scrollHeight > measure.clientHeight + 1;\n    var sWidth = measure.nativeBarWidth;\n\n    if (needsV) {\n      this.vert.style.display = \"block\";\n      this.vert.style.bottom = needsH ? sWidth + \"px\" : \"0\";\n      var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);\n      // A bug in IE8 can cause this value to be negative, so guard it.\n      this.vert.firstChild.style.height =\n        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + \"px\";\n    } else {\n      this.vert.style.display = \"\";\n      this.vert.firstChild.style.height = \"0\";\n    }\n\n    if (needsH) {\n      this.horiz.style.display = \"block\";\n      this.horiz.style.right = needsV ? sWidth + \"px\" : \"0\";\n      this.horiz.style.left = measure.barLeft + \"px\";\n      var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);\n      this.horiz.firstChild.style.width =\n        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + \"px\";\n    } else {\n      this.horiz.style.display = \"\";\n      this.horiz.firstChild.style.width = \"0\";\n    }\n\n    if (!this.checkedZeroWidth && measure.clientHeight > 0) {\n      if (sWidth == 0) { this.zeroWidthHack(); }\n      this.checkedZeroWidth = true;\n    }\n\n    return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}\n  };\n\n  NativeScrollbars.prototype.setScrollLeft = function (pos) {\n    if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }\n    if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, \"horiz\"); }\n  };\n\n  NativeScrollbars.prototype.setScrollTop = function (pos) {\n    if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }\n    if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, \"vert\"); }\n  };\n\n  NativeScrollbars.prototype.zeroWidthHack = function () {\n    var w = mac && !mac_geMountainLion ? \"12px\" : \"18px\";\n    this.horiz.style.height = this.vert.style.width = w;\n    this.horiz.style.pointerEvents = this.vert.style.pointerEvents = \"none\";\n    this.disableHoriz = new Delayed;\n    this.disableVert = new Delayed;\n  };\n\n  NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {\n    bar.style.pointerEvents = \"auto\";\n    function maybeDisable() {\n      // To find out whether the scrollbar is still visible, we\n      // check whether the element under the pixel in the bottom\n      // right corner of the scrollbar box is the scrollbar box\n      // itself (when the bar is still visible) or its filler child\n      // (when the bar is hidden). If it is still visible, we keep\n      // it enabled, if it's hidden, we disable pointer events.\n      var box = bar.getBoundingClientRect();\n      var elt$$1 = type == \"vert\" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)\n          : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);\n      if (elt$$1 != bar) { bar.style.pointerEvents = \"none\"; }\n      else { delay.set(1000, maybeDisable); }\n    }\n    delay.set(1000, maybeDisable);\n  };\n\n  NativeScrollbars.prototype.clear = function () {\n    var parent = this.horiz.parentNode;\n    parent.removeChild(this.horiz);\n    parent.removeChild(this.vert);\n  };\n\n  var NullScrollbars = function () {};\n\n  NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };\n  NullScrollbars.prototype.setScrollLeft = function () {};\n  NullScrollbars.prototype.setScrollTop = function () {};\n  NullScrollbars.prototype.clear = function () {};\n\n  function updateScrollbars(cm, measure) {\n    if (!measure) { measure = measureForScrollbars(cm); }\n    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;\n    updateScrollbarsInner(cm, measure);\n    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {\n      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)\n        { updateHeightsInViewport(cm); }\n      updateScrollbarsInner(cm, measureForScrollbars(cm));\n      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;\n    }\n  }\n\n  // Re-synchronize the fake scrollbars with the actual size of the\n  // content.\n  function updateScrollbarsInner(cm, measure) {\n    var d = cm.display;\n    var sizes = d.scrollbars.update(measure);\n\n    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + \"px\";\n    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + \"px\";\n    d.heightForcer.style.borderBottom = sizes.bottom + \"px solid transparent\";\n\n    if (sizes.right && sizes.bottom) {\n      d.scrollbarFiller.style.display = \"block\";\n      d.scrollbarFiller.style.height = sizes.bottom + \"px\";\n      d.scrollbarFiller.style.width = sizes.right + \"px\";\n    } else { d.scrollbarFiller.style.display = \"\"; }\n    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {\n      d.gutterFiller.style.display = \"block\";\n      d.gutterFiller.style.height = sizes.bottom + \"px\";\n      d.gutterFiller.style.width = measure.gutterWidth + \"px\";\n    } else { d.gutterFiller.style.display = \"\"; }\n  }\n\n  var scrollbarModel = {\"native\": NativeScrollbars, \"null\": NullScrollbars};\n\n  function initScrollbars(cm) {\n    if (cm.display.scrollbars) {\n      cm.display.scrollbars.clear();\n      if (cm.display.scrollbars.addClass)\n        { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }\n    }\n\n    cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {\n      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);\n      // Prevent clicks in the scrollbars from killing focus\n      on(node, \"mousedown\", function () {\n        if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }\n      });\n      node.setAttribute(\"cm-not-content\", \"true\");\n    }, function (pos, axis) {\n      if (axis == \"horizontal\") { setScrollLeft(cm, pos); }\n      else { updateScrollTop(cm, pos); }\n    }, cm);\n    if (cm.display.scrollbars.addClass)\n      { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }\n  }\n\n  // Operations are used to wrap a series of changes to the editor\n  // state in such a way that each change won't have to update the\n  // cursor and display (which would be awkward, slow, and\n  // error-prone). Instead, display updates are batched and then all\n  // combined and executed at once.\n\n  var nextOpId = 0;\n  // Start a new operation.\n  function startOperation(cm) {\n    cm.curOp = {\n      cm: cm,\n      viewChanged: false,      // Flag that indicates that lines might need to be redrawn\n      startHeight: cm.doc.height, // Used to detect need to update scrollbar\n      forceUpdate: false,      // Used to force a redraw\n      updateInput: 0,       // Whether to reset the input textarea\n      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)\n      changeObjs: null,        // Accumulated changes, for firing change events\n      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on\n      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already\n      selectionChanged: false, // Whether the selection needs to be redrawn\n      updateMaxLine: false,    // Set when the widest line needs to be determined anew\n      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet\n      scrollToPos: null,       // Used to scroll to a specific position\n      focus: false,\n      id: ++nextOpId           // Unique ID\n    };\n    pushOperation(cm.curOp);\n  }\n\n  // Finish an operation, updating the display and signalling delayed events\n  function endOperation(cm) {\n    var op = cm.curOp;\n    if (op) { finishOperation(op, function (group) {\n      for (var i = 0; i < group.ops.length; i++)\n        { group.ops[i].cm.curOp = null; }\n      endOperations(group);\n    }); }\n  }\n\n  // The DOM updates done when an operation finishes are batched so\n  // that the minimum number of relayouts are required.\n  function endOperations(group) {\n    var ops = group.ops;\n    for (var i = 0; i < ops.length; i++) // Read DOM\n      { endOperation_R1(ops[i]); }\n    for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)\n      { endOperation_W1(ops[i$1]); }\n    for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM\n      { endOperation_R2(ops[i$2]); }\n    for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)\n      { endOperation_W2(ops[i$3]); }\n    for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM\n      { endOperation_finish(ops[i$4]); }\n  }\n\n  function endOperation_R1(op) {\n    var cm = op.cm, display = cm.display;\n    maybeClipScrollbars(cm);\n    if (op.updateMaxLine) { findMaxLine(cm); }\n\n    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||\n      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||\n                         op.scrollToPos.to.line >= display.viewTo) ||\n      display.maxLineChanged && cm.options.lineWrapping;\n    op.update = op.mustUpdate &&\n      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);\n  }\n\n  function endOperation_W1(op) {\n    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);\n  }\n\n  function endOperation_R2(op) {\n    var cm = op.cm, display = cm.display;\n    if (op.updatedDisplay) { updateHeightsInViewport(cm); }\n\n    op.barMeasure = measureForScrollbars(cm);\n\n    // If the max line changed since it was last measured, measure it,\n    // and ensure the document's width matches it.\n    // updateDisplay_W2 will use these properties to do the actual resizing\n    if (display.maxLineChanged && !cm.options.lineWrapping) {\n      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;\n      cm.display.sizerWidth = op.adjustWidthTo;\n      op.barMeasure.scrollWidth =\n        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);\n      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));\n    }\n\n    if (op.updatedDisplay || op.selectionChanged)\n      { op.preparedSelection = display.input.prepareSelection(); }\n  }\n\n  function endOperation_W2(op) {\n    var cm = op.cm;\n\n    if (op.adjustWidthTo != null) {\n      cm.display.sizer.style.minWidth = op.adjustWidthTo + \"px\";\n      if (op.maxScrollLeft < cm.doc.scrollLeft)\n        { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }\n      cm.display.maxLineChanged = false;\n    }\n\n    var takeFocus = op.focus && op.focus == activeElt();\n    if (op.preparedSelection)\n      { cm.display.input.showSelection(op.preparedSelection, takeFocus); }\n    if (op.updatedDisplay || op.startHeight != cm.doc.height)\n      { updateScrollbars(cm, op.barMeasure); }\n    if (op.updatedDisplay)\n      { setDocumentHeight(cm, op.barMeasure); }\n\n    if (op.selectionChanged) { restartBlink(cm); }\n\n    if (cm.state.focused && op.updateInput)\n      { cm.display.input.reset(op.typing); }\n    if (takeFocus) { ensureFocus(op.cm); }\n  }\n\n  function endOperation_finish(op) {\n    var cm = op.cm, display = cm.display, doc = cm.doc;\n\n    if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }\n\n    // Abort mouse wheel delta measurement, when scrolling explicitly\n    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))\n      { display.wheelStartX = display.wheelStartY = null; }\n\n    // Propagate the scroll position to the actual DOM scroller\n    if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }\n\n    if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }\n    // If we need to scroll a specific position into view, do so.\n    if (op.scrollToPos) {\n      var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),\n                                   clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);\n      maybeScrollWindow(cm, rect);\n    }\n\n    // Fire events for markers that are hidden/unidden by editing or\n    // undoing\n    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;\n    if (hidden) { for (var i = 0; i < hidden.length; ++i)\n      { if (!hidden[i].lines.length) { signal(hidden[i], \"hide\"); } } }\n    if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)\n      { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], \"unhide\"); } } }\n\n    if (display.wrapper.offsetHeight)\n      { doc.scrollTop = cm.display.scroller.scrollTop; }\n\n    // Fire change events, and delayed event handlers\n    if (op.changeObjs)\n      { signal(cm, \"changes\", cm, op.changeObjs); }\n    if (op.update)\n      { op.update.finish(); }\n  }\n\n  // Run the given function in an operation\n  function runInOp(cm, f) {\n    if (cm.curOp) { return f() }\n    startOperation(cm);\n    try { return f() }\n    finally { endOperation(cm); }\n  }\n  // Wraps a function in an operation. Returns the wrapped function.\n  function operation(cm, f) {\n    return function() {\n      if (cm.curOp) { return f.apply(cm, arguments) }\n      startOperation(cm);\n      try { return f.apply(cm, arguments) }\n      finally { endOperation(cm); }\n    }\n  }\n  // Used to add methods to editor and doc instances, wrapping them in\n  // operations.\n  function methodOp(f) {\n    return function() {\n      if (this.curOp) { return f.apply(this, arguments) }\n      startOperation(this);\n      try { return f.apply(this, arguments) }\n      finally { endOperation(this); }\n    }\n  }\n  function docMethodOp(f) {\n    return function() {\n      var cm = this.cm;\n      if (!cm || cm.curOp) { return f.apply(this, arguments) }\n      startOperation(cm);\n      try { return f.apply(this, arguments) }\n      finally { endOperation(cm); }\n    }\n  }\n\n  // HIGHLIGHT WORKER\n\n  function startWorker(cm, time) {\n    if (cm.doc.highlightFrontier < cm.display.viewTo)\n      { cm.state.highlight.set(time, bind(highlightWorker, cm)); }\n  }\n\n  function highlightWorker(cm) {\n    var doc = cm.doc;\n    if (doc.highlightFrontier >= cm.display.viewTo) { return }\n    var end = +new Date + cm.options.workTime;\n    var context = getContextBefore(cm, doc.highlightFrontier);\n    var changedLines = [];\n\n    doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {\n      if (context.line >= cm.display.viewFrom) { // Visible\n        var oldStyles = line.styles;\n        var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;\n        var highlighted = highlightLine(cm, line, context, true);\n        if (resetState) { context.state = resetState; }\n        line.styles = highlighted.styles;\n        var oldCls = line.styleClasses, newCls = highlighted.classes;\n        if (newCls) { line.styleClasses = newCls; }\n        else if (oldCls) { line.styleClasses = null; }\n        var ischange = !oldStyles || oldStyles.length != line.styles.length ||\n          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);\n        for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }\n        if (ischange) { changedLines.push(context.line); }\n        line.stateAfter = context.save();\n        context.nextLine();\n      } else {\n        if (line.text.length <= cm.options.maxHighlightLength)\n          { processLine(cm, line.text, context); }\n        line.stateAfter = context.line % 5 == 0 ? context.save() : null;\n        context.nextLine();\n      }\n      if (+new Date > end) {\n        startWorker(cm, cm.options.workDelay);\n        return true\n      }\n    });\n    doc.highlightFrontier = context.line;\n    doc.modeFrontier = Math.max(doc.modeFrontier, context.line);\n    if (changedLines.length) { runInOp(cm, function () {\n      for (var i = 0; i < changedLines.length; i++)\n        { regLineChange(cm, changedLines[i], \"text\"); }\n    }); }\n  }\n\n  // DISPLAY DRAWING\n\n  var DisplayUpdate = function(cm, viewport, force) {\n    var display = cm.display;\n\n    this.viewport = viewport;\n    // Store some values that we'll need later (but don't want to force a relayout for)\n    this.visible = visibleLines(display, cm.doc, viewport);\n    this.editorIsHidden = !display.wrapper.offsetWidth;\n    this.wrapperHeight = display.wrapper.clientHeight;\n    this.wrapperWidth = display.wrapper.clientWidth;\n    this.oldDisplayWidth = displayWidth(cm);\n    this.force = force;\n    this.dims = getDimensions(cm);\n    this.events = [];\n  };\n\n  DisplayUpdate.prototype.signal = function (emitter, type) {\n    if (hasHandler(emitter, type))\n      { this.events.push(arguments); }\n  };\n  DisplayUpdate.prototype.finish = function () {\n      var this$1 = this;\n\n    for (var i = 0; i < this.events.length; i++)\n      { signal.apply(null, this$1.events[i]); }\n  };\n\n  function maybeClipScrollbars(cm) {\n    var display = cm.display;\n    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {\n      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;\n      display.heightForcer.style.height = scrollGap(cm) + \"px\";\n      display.sizer.style.marginBottom = -display.nativeBarWidth + \"px\";\n      display.sizer.style.borderRightWidth = scrollGap(cm) + \"px\";\n      display.scrollbarsClipped = true;\n    }\n  }\n\n  function selectionSnapshot(cm) {\n    if (cm.hasFocus()) { return null }\n    var active = activeElt();\n    if (!active || !contains(cm.display.lineDiv, active)) { return null }\n    var result = {activeElt: active};\n    if (window.getSelection) {\n      var sel = window.getSelection();\n      if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {\n        result.anchorNode = sel.anchorNode;\n        result.anchorOffset = sel.anchorOffset;\n        result.focusNode = sel.focusNode;\n        result.focusOffset = sel.focusOffset;\n      }\n    }\n    return result\n  }\n\n  function restoreSelection(snapshot) {\n    if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }\n    snapshot.activeElt.focus();\n    if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {\n      var sel = window.getSelection(), range$$1 = document.createRange();\n      range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset);\n      range$$1.collapse(false);\n      sel.removeAllRanges();\n      sel.addRange(range$$1);\n      sel.extend(snapshot.focusNode, snapshot.focusOffset);\n    }\n  }\n\n  // Does the actual updating of the line display. Bails out\n  // (returning false) when there is nothing to be done and forced is\n  // false.\n  function updateDisplayIfNeeded(cm, update) {\n    var display = cm.display, doc = cm.doc;\n\n    if (update.editorIsHidden) {\n      resetView(cm);\n      return false\n    }\n\n    // Bail out if the visible area is already rendered and nothing changed.\n    if (!update.force &&\n        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&\n        display.renderedView == display.view && countDirtyView(cm) == 0)\n      { return false }\n\n    if (maybeUpdateLineNumberWidth(cm)) {\n      resetView(cm);\n      update.dims = getDimensions(cm);\n    }\n\n    // Compute a suitable new viewport (from & to)\n    var end = doc.first + doc.size;\n    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);\n    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);\n    if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }\n    if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }\n    if (sawCollapsedSpans) {\n      from = visualLineNo(cm.doc, from);\n      to = visualLineEndNo(cm.doc, to);\n    }\n\n    var different = from != display.viewFrom || to != display.viewTo ||\n      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;\n    adjustView(cm, from, to);\n\n    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));\n    // Position the mover div to align with the current scroll position\n    cm.display.mover.style.top = display.viewOffset + \"px\";\n\n    var toUpdate = countDirtyView(cm);\n    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))\n      { return false }\n\n    // For big changes, we hide the enclosing element during the\n    // update, since that speeds up the operations on most browsers.\n    var selSnapshot = selectionSnapshot(cm);\n    if (toUpdate > 4) { display.lineDiv.style.display = \"none\"; }\n    patchDisplay(cm, display.updateLineNumbers, update.dims);\n    if (toUpdate > 4) { display.lineDiv.style.display = \"\"; }\n    display.renderedView = display.view;\n    // There might have been a widget with a focused element that got\n    // hidden or updated, if so re-focus it.\n    restoreSelection(selSnapshot);\n\n    // Prevent selection and cursors from interfering with the scroll\n    // width and height.\n    removeChildren(display.cursorDiv);\n    removeChildren(display.selectionDiv);\n    display.gutters.style.height = display.sizer.style.minHeight = 0;\n\n    if (different) {\n      display.lastWrapHeight = update.wrapperHeight;\n      display.lastWrapWidth = update.wrapperWidth;\n      startWorker(cm, 400);\n    }\n\n    display.updateLineNumbers = null;\n\n    return true\n  }\n\n  function postUpdateDisplay(cm, update) {\n    var viewport = update.viewport;\n\n    for (var first = true;; first = false) {\n      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {\n        // Clip forced viewport to actual scrollable area.\n        if (viewport && viewport.top != null)\n          { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }\n        // Updated line heights might result in the drawn area not\n        // actually covering the viewport. Keep looping until it does.\n        update.visible = visibleLines(cm.display, cm.doc, viewport);\n        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)\n          { break }\n      }\n      if (!updateDisplayIfNeeded(cm, update)) { break }\n      updateHeightsInViewport(cm);\n      var barMeasure = measureForScrollbars(cm);\n      updateSelection(cm);\n      updateScrollbars(cm, barMeasure);\n      setDocumentHeight(cm, barMeasure);\n      update.force = false;\n    }\n\n    update.signal(cm, \"update\", cm);\n    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {\n      update.signal(cm, \"viewportChange\", cm, cm.display.viewFrom, cm.display.viewTo);\n      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;\n    }\n  }\n\n  function updateDisplaySimple(cm, viewport) {\n    var update = new DisplayUpdate(cm, viewport);\n    if (updateDisplayIfNeeded(cm, update)) {\n      updateHeightsInViewport(cm);\n      postUpdateDisplay(cm, update);\n      var barMeasure = measureForScrollbars(cm);\n      updateSelection(cm);\n      updateScrollbars(cm, barMeasure);\n      setDocumentHeight(cm, barMeasure);\n      update.finish();\n    }\n  }\n\n  // Sync the actual display DOM structure with display.view, removing\n  // nodes for lines that are no longer in view, and creating the ones\n  // that are not there yet, and updating the ones that are out of\n  // date.\n  function patchDisplay(cm, updateNumbersFrom, dims) {\n    var display = cm.display, lineNumbers = cm.options.lineNumbers;\n    var container = display.lineDiv, cur = container.firstChild;\n\n    function rm(node) {\n      var next = node.nextSibling;\n      // Works around a throw-scroll bug in OS X Webkit\n      if (webkit && mac && cm.display.currentWheelTarget == node)\n        { node.style.display = \"none\"; }\n      else\n        { node.parentNode.removeChild(node); }\n      return next\n    }\n\n    var view = display.view, lineN = display.viewFrom;\n    // Loop over the elements in the view, syncing cur (the DOM nodes\n    // in display.lineDiv) with the view as we go.\n    for (var i = 0; i < view.length; i++) {\n      var lineView = view[i];\n      if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet\n        var node = buildLineElement(cm, lineView, lineN, dims);\n        container.insertBefore(node, cur);\n      } else { // Already drawn\n        while (cur != lineView.node) { cur = rm(cur); }\n        var updateNumber = lineNumbers && updateNumbersFrom != null &&\n          updateNumbersFrom <= lineN && lineView.lineNumber;\n        if (lineView.changes) {\n          if (indexOf(lineView.changes, \"gutter\") > -1) { updateNumber = false; }\n          updateLineForChanges(cm, lineView, lineN, dims);\n        }\n        if (updateNumber) {\n          removeChildren(lineView.lineNumber);\n          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));\n        }\n        cur = lineView.node.nextSibling;\n      }\n      lineN += lineView.size;\n    }\n    while (cur) { cur = rm(cur); }\n  }\n\n  function updateGutterSpace(display) {\n    var width = display.gutters.offsetWidth;\n    display.sizer.style.marginLeft = width + \"px\";\n  }\n\n  function setDocumentHeight(cm, measure) {\n    cm.display.sizer.style.minHeight = measure.docHeight + \"px\";\n    cm.display.heightForcer.style.top = measure.docHeight + \"px\";\n    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + \"px\";\n  }\n\n  // Re-align line numbers and gutter marks to compensate for\n  // horizontal scrolling.\n  function alignHorizontally(cm) {\n    var display = cm.display, view = display.view;\n    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }\n    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;\n    var gutterW = display.gutters.offsetWidth, left = comp + \"px\";\n    for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {\n      if (cm.options.fixedGutter) {\n        if (view[i].gutter)\n          { view[i].gutter.style.left = left; }\n        if (view[i].gutterBackground)\n          { view[i].gutterBackground.style.left = left; }\n      }\n      var align = view[i].alignable;\n      if (align) { for (var j = 0; j < align.length; j++)\n        { align[j].style.left = left; } }\n    } }\n    if (cm.options.fixedGutter)\n      { display.gutters.style.left = (comp + gutterW) + \"px\"; }\n  }\n\n  // Used to ensure that the line number gutter is still the right\n  // size for the current document size. Returns true when an update\n  // is needed.\n  function maybeUpdateLineNumberWidth(cm) {\n    if (!cm.options.lineNumbers) { return false }\n    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;\n    if (last.length != display.lineNumChars) {\n      var test = display.measure.appendChild(elt(\"div\", [elt(\"div\", last)],\n                                                 \"CodeMirror-linenumber CodeMirror-gutter-elt\"));\n      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;\n      display.lineGutter.style.width = \"\";\n      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;\n      display.lineNumWidth = display.lineNumInnerWidth + padding;\n      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;\n      display.lineGutter.style.width = display.lineNumWidth + \"px\";\n      updateGutterSpace(cm.display);\n      return true\n    }\n    return false\n  }\n\n  function getGutters(gutters, lineNumbers) {\n    var result = [], sawLineNumbers = false;\n    for (var i = 0; i < gutters.length; i++) {\n      var name = gutters[i], style = null;\n      if (typeof name != \"string\") { style = name.style; name = name.className; }\n      if (name == \"CodeMirror-linenumbers\") {\n        if (!lineNumbers) { continue }\n        else { sawLineNumbers = true; }\n      }\n      result.push({className: name, style: style});\n    }\n    if (lineNumbers && !sawLineNumbers) { result.push({className: \"CodeMirror-linenumbers\", style: null}); }\n    return result\n  }\n\n  // Rebuild the gutter elements, ensure the margin to the left of the\n  // code matches their width.\n  function renderGutters(display) {\n    var gutters = display.gutters, specs = display.gutterSpecs;\n    removeChildren(gutters);\n    display.lineGutter = null;\n    for (var i = 0; i < specs.length; ++i) {\n      var ref = specs[i];\n      var className = ref.className;\n      var style = ref.style;\n      var gElt = gutters.appendChild(elt(\"div\", null, \"CodeMirror-gutter \" + className));\n      if (style) { gElt.style.cssText = style; }\n      if (className == \"CodeMirror-linenumbers\") {\n        display.lineGutter = gElt;\n        gElt.style.width = (display.lineNumWidth || 1) + \"px\";\n      }\n    }\n    gutters.style.display = specs.length ? \"\" : \"none\";\n    updateGutterSpace(display);\n  }\n\n  function updateGutters(cm) {\n    renderGutters(cm.display);\n    regChange(cm);\n    alignHorizontally(cm);\n  }\n\n  // The display handles the DOM integration, both for input reading\n  // and content drawing. It holds references to DOM nodes and\n  // display-related state.\n\n  function Display(place, doc, input, options) {\n    var d = this;\n    this.input = input;\n\n    // Covers bottom-right square when both scrollbars are present.\n    d.scrollbarFiller = elt(\"div\", null, \"CodeMirror-scrollbar-filler\");\n    d.scrollbarFiller.setAttribute(\"cm-not-content\", \"true\");\n    // Covers bottom of gutter when coverGutterNextToScrollbar is on\n    // and h scrollbar is present.\n    d.gutterFiller = elt(\"div\", null, \"CodeMirror-gutter-filler\");\n    d.gutterFiller.setAttribute(\"cm-not-content\", \"true\");\n    // Will contain the actual code, positioned to cover the viewport.\n    d.lineDiv = eltP(\"div\", null, \"CodeMirror-code\");\n    // Elements are added to these to represent selection and cursors.\n    d.selectionDiv = elt(\"div\", null, null, \"position: relative; z-index: 1\");\n    d.cursorDiv = elt(\"div\", null, \"CodeMirror-cursors\");\n    // A visibility: hidden element used to find the size of things.\n    d.measure = elt(\"div\", null, \"CodeMirror-measure\");\n    // When lines outside of the viewport are measured, they are drawn in this.\n    d.lineMeasure = elt(\"div\", null, \"CodeMirror-measure\");\n    // Wraps everything that needs to exist inside the vertically-padded coordinate system\n    d.lineSpace = eltP(\"div\", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],\n                      null, \"position: relative; outline: none\");\n    var lines = eltP(\"div\", [d.lineSpace], \"CodeMirror-lines\");\n    // Moved around its parent to cover visible view.\n    d.mover = elt(\"div\", [lines], null, \"position: relative\");\n    // Set to the height of the document, allowing scrolling.\n    d.sizer = elt(\"div\", [d.mover], \"CodeMirror-sizer\");\n    d.sizerWidth = null;\n    // Behavior of elts with overflow: auto and padding is\n    // inconsistent across browsers. This is used to ensure the\n    // scrollable area is big enough.\n    d.heightForcer = elt(\"div\", null, null, \"position: absolute; height: \" + scrollerGap + \"px; width: 1px;\");\n    // Will contain the gutters, if any.\n    d.gutters = elt(\"div\", null, \"CodeMirror-gutters\");\n    d.lineGutter = null;\n    // Actual scrollable element.\n    d.scroller = elt(\"div\", [d.sizer, d.heightForcer, d.gutters], \"CodeMirror-scroll\");\n    d.scroller.setAttribute(\"tabIndex\", \"-1\");\n    // The element in which the editor lives.\n    d.wrapper = elt(\"div\", [d.scrollbarFiller, d.gutterFiller, d.scroller], \"CodeMirror\");\n\n    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)\n    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }\n    if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }\n\n    if (place) {\n      if (place.appendChild) { place.appendChild(d.wrapper); }\n      else { place(d.wrapper); }\n    }\n\n    // Current rendered range (may be bigger than the view window).\n    d.viewFrom = d.viewTo = doc.first;\n    d.reportedViewFrom = d.reportedViewTo = doc.first;\n    // Information about the rendered lines.\n    d.view = [];\n    d.renderedView = null;\n    // Holds info about a single rendered line when it was rendered\n    // for measurement, while not in view.\n    d.externalMeasured = null;\n    // Empty space (in pixels) above the view\n    d.viewOffset = 0;\n    d.lastWrapHeight = d.lastWrapWidth = 0;\n    d.updateLineNumbers = null;\n\n    d.nativeBarWidth = d.barHeight = d.barWidth = 0;\n    d.scrollbarsClipped = false;\n\n    // Used to only resize the line number gutter when necessary (when\n    // the amount of lines crosses a boundary that makes its width change)\n    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;\n    // Set to true when a non-horizontal-scrolling line widget is\n    // added. As an optimization, line widget aligning is skipped when\n    // this is false.\n    d.alignWidgets = false;\n\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\n\n    // Tracks the maximum line length so that the horizontal scrollbar\n    // can be kept static when scrolling.\n    d.maxLine = null;\n    d.maxLineLength = 0;\n    d.maxLineChanged = false;\n\n    // Used for measuring wheel scrolling granularity\n    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;\n\n    // True when shift is held down.\n    d.shift = false;\n\n    // Used to track whether anything happened since the context menu\n    // was opened.\n    d.selForContextMenu = null;\n\n    d.activeTouch = null;\n\n    d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);\n    renderGutters(d);\n\n    input.init(d);\n  }\n\n  // Since the delta values reported on mouse wheel events are\n  // unstandardized between browsers and even browser versions, and\n  // generally horribly unpredictable, this code starts by measuring\n  // the scroll effect that the first few mouse wheel events have,\n  // and, from that, detects the way it can convert deltas to pixel\n  // offsets afterwards.\n  //\n  // The reason we want to know the amount a wheel event will scroll\n  // is that it gives us a chance to update the display before the\n  // actual scrolling happens, reducing flickering.\n\n  var wheelSamples = 0, wheelPixelsPerUnit = null;\n  // Fill in a browser-detected starting value on browsers where we\n  // know one. These don't have to be accurate -- the result of them\n  // being wrong would just be a slight flicker on the first wheel\n  // scroll (if it is large enough).\n  if (ie) { wheelPixelsPerUnit = -.53; }\n  else if (gecko) { wheelPixelsPerUnit = 15; }\n  else if (chrome) { wheelPixelsPerUnit = -.7; }\n  else if (safari) { wheelPixelsPerUnit = -1/3; }\n\n  function wheelEventDelta(e) {\n    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;\n    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }\n    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }\n    else if (dy == null) { dy = e.wheelDelta; }\n    return {x: dx, y: dy}\n  }\n  function wheelEventPixels(e) {\n    var delta = wheelEventDelta(e);\n    delta.x *= wheelPixelsPerUnit;\n    delta.y *= wheelPixelsPerUnit;\n    return delta\n  }\n\n  function onScrollWheel(cm, e) {\n    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;\n\n    var display = cm.display, scroll = display.scroller;\n    // Quit if there's nothing to scroll here\n    var canScrollX = scroll.scrollWidth > scroll.clientWidth;\n    var canScrollY = scroll.scrollHeight > scroll.clientHeight;\n    if (!(dx && canScrollX || dy && canScrollY)) { return }\n\n    // Webkit browsers on OS X abort momentum scrolls when the target\n    // of the scroll event is removed from the scrollable element.\n    // This hack (see related code in patchDisplay) makes sure the\n    // element is kept around.\n    if (dy && mac && webkit) {\n      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {\n        for (var i = 0; i < view.length; i++) {\n          if (view[i].node == cur) {\n            cm.display.currentWheelTarget = cur;\n            break outer\n          }\n        }\n      }\n    }\n\n    // On some browsers, horizontal scrolling will cause redraws to\n    // happen before the gutter has been realigned, causing it to\n    // wriggle around in a most unseemly way. When we have an\n    // estimated pixels/delta value, we just handle horizontal\n    // scrolling entirely here. It'll be slightly off from native, but\n    // better than glitching out.\n    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {\n      if (dy && canScrollY)\n        { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }\n      setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));\n      // Only prevent default scrolling if vertical scrolling is\n      // actually possible. Otherwise, it causes vertical scroll\n      // jitter on OSX trackpads when deltaX is small and deltaY\n      // is large (issue #3579)\n      if (!dy || (dy && canScrollY))\n        { e_preventDefault(e); }\n      display.wheelStartX = null; // Abort measurement, if in progress\n      return\n    }\n\n    // 'Project' the visible viewport to cover the area that is being\n    // scrolled into view (if we know enough to estimate it).\n    if (dy && wheelPixelsPerUnit != null) {\n      var pixels = dy * wheelPixelsPerUnit;\n      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;\n      if (pixels < 0) { top = Math.max(0, top + pixels - 50); }\n      else { bot = Math.min(cm.doc.height, bot + pixels + 50); }\n      updateDisplaySimple(cm, {top: top, bottom: bot});\n    }\n\n    if (wheelSamples < 20) {\n      if (display.wheelStartX == null) {\n        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;\n        display.wheelDX = dx; display.wheelDY = dy;\n        setTimeout(function () {\n          if (display.wheelStartX == null) { return }\n          var movedX = scroll.scrollLeft - display.wheelStartX;\n          var movedY = scroll.scrollTop - display.wheelStartY;\n          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||\n            (movedX && display.wheelDX && movedX / display.wheelDX);\n          display.wheelStartX = display.wheelStartY = null;\n          if (!sample) { return }\n          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);\n          ++wheelSamples;\n        }, 200);\n      } else {\n        display.wheelDX += dx; display.wheelDY += dy;\n      }\n    }\n  }\n\n  // Selection objects are immutable. A new one is created every time\n  // the selection changes. A selection is one or more non-overlapping\n  // (and non-touching) ranges, sorted, and an integer that indicates\n  // which one is the primary selection (the one that's scrolled into\n  // view, that getCursor returns, etc).\n  var Selection = function(ranges, primIndex) {\n    this.ranges = ranges;\n    this.primIndex = primIndex;\n  };\n\n  Selection.prototype.primary = function () { return this.ranges[this.primIndex] };\n\n  Selection.prototype.equals = function (other) {\n      var this$1 = this;\n\n    if (other == this) { return true }\n    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }\n    for (var i = 0; i < this.ranges.length; i++) {\n      var here = this$1.ranges[i], there = other.ranges[i];\n      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }\n    }\n    return true\n  };\n\n  Selection.prototype.deepCopy = function () {\n      var this$1 = this;\n\n    var out = [];\n    for (var i = 0; i < this.ranges.length; i++)\n      { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); }\n    return new Selection(out, this.primIndex)\n  };\n\n  Selection.prototype.somethingSelected = function () {\n      var this$1 = this;\n\n    for (var i = 0; i < this.ranges.length; i++)\n      { if (!this$1.ranges[i].empty()) { return true } }\n    return false\n  };\n\n  Selection.prototype.contains = function (pos, end) {\n      var this$1 = this;\n\n    if (!end) { end = pos; }\n    for (var i = 0; i < this.ranges.length; i++) {\n      var range = this$1.ranges[i];\n      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)\n        { return i }\n    }\n    return -1\n  };\n\n  var Range = function(anchor, head) {\n    this.anchor = anchor; this.head = head;\n  };\n\n  Range.prototype.from = function () { return minPos(this.anchor, this.head) };\n  Range.prototype.to = function () { return maxPos(this.anchor, this.head) };\n  Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };\n\n  // Take an unsorted, potentially overlapping set of ranges, and\n  // build a selection out of it. 'Consumes' ranges array (modifying\n  // it).\n  function normalizeSelection(cm, ranges, primIndex) {\n    var mayTouch = cm && cm.options.selectionsMayTouch;\n    var prim = ranges[primIndex];\n    ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });\n    primIndex = indexOf(ranges, prim);\n    for (var i = 1; i < ranges.length; i++) {\n      var cur = ranges[i], prev = ranges[i - 1];\n      var diff = cmp(prev.to(), cur.from());\n      if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {\n        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());\n        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;\n        if (i <= primIndex) { --primIndex; }\n        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));\n      }\n    }\n    return new Selection(ranges, primIndex)\n  }\n\n  function simpleSelection(anchor, head) {\n    return new Selection([new Range(anchor, head || anchor)], 0)\n  }\n\n  // Compute the position of the end of a change (its 'to' property\n  // refers to the pre-change end).\n  function changeEnd(change) {\n    if (!change.text) { return change.to }\n    return Pos(change.from.line + change.text.length - 1,\n               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))\n  }\n\n  // Adjust a position to refer to the post-change position of the\n  // same text, or the end of the change if the change covers it.\n  function adjustForChange(pos, change) {\n    if (cmp(pos, change.from) < 0) { return pos }\n    if (cmp(pos, change.to) <= 0) { return changeEnd(change) }\n\n    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;\n    if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }\n    return Pos(line, ch)\n  }\n\n  function computeSelAfterChange(doc, change) {\n    var out = [];\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\n      var range = doc.sel.ranges[i];\n      out.push(new Range(adjustForChange(range.anchor, change),\n                         adjustForChange(range.head, change)));\n    }\n    return normalizeSelection(doc.cm, out, doc.sel.primIndex)\n  }\n\n  function offsetPos(pos, old, nw) {\n    if (pos.line == old.line)\n      { return Pos(nw.line, pos.ch - old.ch + nw.ch) }\n    else\n      { return Pos(nw.line + (pos.line - old.line), pos.ch) }\n  }\n\n  // Used by replaceSelections to allow moving the selection to the\n  // start or around the replaced test. Hint may be \"start\" or \"around\".\n  function computeReplacedSel(doc, changes, hint) {\n    var out = [];\n    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;\n    for (var i = 0; i < changes.length; i++) {\n      var change = changes[i];\n      var from = offsetPos(change.from, oldPrev, newPrev);\n      var to = offsetPos(changeEnd(change), oldPrev, newPrev);\n      oldPrev = change.to;\n      newPrev = to;\n      if (hint == \"around\") {\n        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;\n        out[i] = new Range(inv ? to : from, inv ? from : to);\n      } else {\n        out[i] = new Range(from, from);\n      }\n    }\n    return new Selection(out, doc.sel.primIndex)\n  }\n\n  // Used to get the editor into a consistent state again when options change.\n\n  function loadMode(cm) {\n    cm.doc.mode = getMode(cm.options, cm.doc.modeOption);\n    resetModeState(cm);\n  }\n\n  function resetModeState(cm) {\n    cm.doc.iter(function (line) {\n      if (line.stateAfter) { line.stateAfter = null; }\n      if (line.styles) { line.styles = null; }\n    });\n    cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;\n    startWorker(cm, 100);\n    cm.state.modeGen++;\n    if (cm.curOp) { regChange(cm); }\n  }\n\n  // DOCUMENT DATA STRUCTURE\n\n  // By default, updates that start and end at the beginning of a line\n  // are treated specially, in order to make the association of line\n  // widgets and marker elements with the text behave more intuitive.\n  function isWholeLineUpdate(doc, change) {\n    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == \"\" &&\n      (!doc.cm || doc.cm.options.wholeLineUpdateBefore)\n  }\n\n  // Perform a change on the document data structure.\n  function updateDoc(doc, change, markedSpans, estimateHeight$$1) {\n    function spansFor(n) {return markedSpans ? markedSpans[n] : null}\n    function update(line, text, spans) {\n      updateLine(line, text, spans, estimateHeight$$1);\n      signalLater(line, \"change\", line, change);\n    }\n    function linesFor(start, end) {\n      var result = [];\n      for (var i = start; i < end; ++i)\n        { result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); }\n      return result\n    }\n\n    var from = change.from, to = change.to, text = change.text;\n    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);\n    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;\n\n    // Adjust the line structure\n    if (change.full) {\n      doc.insert(0, linesFor(0, text.length));\n      doc.remove(text.length, doc.size - text.length);\n    } else if (isWholeLineUpdate(doc, change)) {\n      // This is a whole-line replace. Treated specially to make\n      // sure line objects move the way they are supposed to.\n      var added = linesFor(0, text.length - 1);\n      update(lastLine, lastLine.text, lastSpans);\n      if (nlines) { doc.remove(from.line, nlines); }\n      if (added.length) { doc.insert(from.line, added); }\n    } else if (firstLine == lastLine) {\n      if (text.length == 1) {\n        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);\n      } else {\n        var added$1 = linesFor(1, text.length - 1);\n        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1));\n        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\n        doc.insert(from.line + 1, added$1);\n      }\n    } else if (text.length == 1) {\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));\n      doc.remove(from.line + 1, nlines);\n    } else {\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\n      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);\n      var added$2 = linesFor(1, text.length - 1);\n      if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }\n      doc.insert(from.line + 1, added$2);\n    }\n\n    signalLater(doc, \"change\", doc, change);\n  }\n\n  // Call f for all linked documents.\n  function linkedDocs(doc, f, sharedHistOnly) {\n    function propagate(doc, skip, sharedHist) {\n      if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {\n        var rel = doc.linked[i];\n        if (rel.doc == skip) { continue }\n        var shared = sharedHist && rel.sharedHist;\n        if (sharedHistOnly && !shared) { continue }\n        f(rel.doc, shared);\n        propagate(rel.doc, doc, shared);\n      } }\n    }\n    propagate(doc, null, true);\n  }\n\n  // Attach a document to an editor.\n  function attachDoc(cm, doc) {\n    if (doc.cm) { throw new Error(\"This document is already in use.\") }\n    cm.doc = doc;\n    doc.cm = cm;\n    estimateLineHeights(cm);\n    loadMode(cm);\n    setDirectionClass(cm);\n    if (!cm.options.lineWrapping) { findMaxLine(cm); }\n    cm.options.mode = doc.modeOption;\n    regChange(cm);\n  }\n\n  function setDirectionClass(cm) {\n  (cm.doc.direction == \"rtl\" ? addClass : rmClass)(cm.display.lineDiv, \"CodeMirror-rtl\");\n  }\n\n  function directionChanged(cm) {\n    runInOp(cm, function () {\n      setDirectionClass(cm);\n      regChange(cm);\n    });\n  }\n\n  function History(startGen) {\n    // Arrays of change events and selections. Doing something adds an\n    // event to done and clears undo. Undoing moves events from done\n    // to undone, redoing moves them in the other direction.\n    this.done = []; this.undone = [];\n    this.undoDepth = Infinity;\n    // Used to track when changes can be merged into a single undo\n    // event\n    this.lastModTime = this.lastSelTime = 0;\n    this.lastOp = this.lastSelOp = null;\n    this.lastOrigin = this.lastSelOrigin = null;\n    // Used by the isClean() method\n    this.generation = this.maxGeneration = startGen || 1;\n  }\n\n  // Create a history change event from an updateDoc-style change\n  // object.\n  function historyChangeFromChange(doc, change) {\n    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};\n    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);\n    linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);\n    return histChange\n  }\n\n  // Pop all selection events off the end of a history array. Stop at\n  // a change event.\n  function clearSelectionEvents(array) {\n    while (array.length) {\n      var last = lst(array);\n      if (last.ranges) { array.pop(); }\n      else { break }\n    }\n  }\n\n  // Find the top change event in the history. Pop off selection\n  // events that are in the way.\n  function lastChangeEvent(hist, force) {\n    if (force) {\n      clearSelectionEvents(hist.done);\n      return lst(hist.done)\n    } else if (hist.done.length && !lst(hist.done).ranges) {\n      return lst(hist.done)\n    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {\n      hist.done.pop();\n      return lst(hist.done)\n    }\n  }\n\n  // Register a change in the history. Merges changes that are within\n  // a single operation, or are close together with an origin that\n  // allows merging (starting with \"+\") into a single event.\n  function addChangeToHistory(doc, change, selAfter, opId) {\n    var hist = doc.history;\n    hist.undone.length = 0;\n    var time = +new Date, cur;\n    var last;\n\n    if ((hist.lastOp == opId ||\n         hist.lastOrigin == change.origin && change.origin &&\n         ((change.origin.charAt(0) == \"+\" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||\n          change.origin.charAt(0) == \"*\")) &&\n        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {\n      // Merge this change into the last event\n      last = lst(cur.changes);\n      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {\n        // Optimized case for simple insertion -- don't want to add\n        // new changesets for every character typed\n        last.to = changeEnd(change);\n      } else {\n        // Add new sub-event\n        cur.changes.push(historyChangeFromChange(doc, change));\n      }\n    } else {\n      // Can not be merged, start a new event.\n      var before = lst(hist.done);\n      if (!before || !before.ranges)\n        { pushSelectionToHistory(doc.sel, hist.done); }\n      cur = {changes: [historyChangeFromChange(doc, change)],\n             generation: hist.generation};\n      hist.done.push(cur);\n      while (hist.done.length > hist.undoDepth) {\n        hist.done.shift();\n        if (!hist.done[0].ranges) { hist.done.shift(); }\n      }\n    }\n    hist.done.push(selAfter);\n    hist.generation = ++hist.maxGeneration;\n    hist.lastModTime = hist.lastSelTime = time;\n    hist.lastOp = hist.lastSelOp = opId;\n    hist.lastOrigin = hist.lastSelOrigin = change.origin;\n\n    if (!last) { signal(doc, \"historyAdded\"); }\n  }\n\n  function selectionEventCanBeMerged(doc, origin, prev, sel) {\n    var ch = origin.charAt(0);\n    return ch == \"*\" ||\n      ch == \"+\" &&\n      prev.ranges.length == sel.ranges.length &&\n      prev.somethingSelected() == sel.somethingSelected() &&\n      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)\n  }\n\n  // Called whenever the selection changes, sets the new selection as\n  // the pending selection in the history, and pushes the old pending\n  // selection into the 'done' array when it was significantly\n  // different (in number of selected ranges, emptiness, or time).\n  function addSelectionToHistory(doc, sel, opId, options) {\n    var hist = doc.history, origin = options && options.origin;\n\n    // A new event is started when the previous origin does not match\n    // the current, or the origins don't allow matching. Origins\n    // starting with * are always merged, those starting with + are\n    // merged when similar and close together in time.\n    if (opId == hist.lastSelOp ||\n        (origin && hist.lastSelOrigin == origin &&\n         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||\n          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))\n      { hist.done[hist.done.length - 1] = sel; }\n    else\n      { pushSelectionToHistory(sel, hist.done); }\n\n    hist.lastSelTime = +new Date;\n    hist.lastSelOrigin = origin;\n    hist.lastSelOp = opId;\n    if (options && options.clearRedo !== false)\n      { clearSelectionEvents(hist.undone); }\n  }\n\n  function pushSelectionToHistory(sel, dest) {\n    var top = lst(dest);\n    if (!(top && top.ranges && top.equals(sel)))\n      { dest.push(sel); }\n  }\n\n  // Used to store marked span information in the history.\n  function attachLocalSpans(doc, change, from, to) {\n    var existing = change[\"spans_\" + doc.id], n = 0;\n    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {\n      if (line.markedSpans)\n        { (existing || (existing = change[\"spans_\" + doc.id] = {}))[n] = line.markedSpans; }\n      ++n;\n    });\n  }\n\n  // When un/re-doing restores text containing marked spans, those\n  // that have been explicitly cleared should not be restored.\n  function removeClearedSpans(spans) {\n    if (!spans) { return null }\n    var out;\n    for (var i = 0; i < spans.length; ++i) {\n      if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }\n      else if (out) { out.push(spans[i]); }\n    }\n    return !out ? spans : out.length ? out : null\n  }\n\n  // Retrieve and filter the old marked spans stored in a change event.\n  function getOldSpans(doc, change) {\n    var found = change[\"spans_\" + doc.id];\n    if (!found) { return null }\n    var nw = [];\n    for (var i = 0; i < change.text.length; ++i)\n      { nw.push(removeClearedSpans(found[i])); }\n    return nw\n  }\n\n  // Used for un/re-doing changes from the history. Combines the\n  // result of computing the existing spans with the set of spans that\n  // existed in the history (so that deleting around a span and then\n  // undoing brings back the span).\n  function mergeOldSpans(doc, change) {\n    var old = getOldSpans(doc, change);\n    var stretched = stretchSpansOverChange(doc, change);\n    if (!old) { return stretched }\n    if (!stretched) { return old }\n\n    for (var i = 0; i < old.length; ++i) {\n      var oldCur = old[i], stretchCur = stretched[i];\n      if (oldCur && stretchCur) {\n        spans: for (var j = 0; j < stretchCur.length; ++j) {\n          var span = stretchCur[j];\n          for (var k = 0; k < oldCur.length; ++k)\n            { if (oldCur[k].marker == span.marker) { continue spans } }\n          oldCur.push(span);\n        }\n      } else if (stretchCur) {\n        old[i] = stretchCur;\n      }\n    }\n    return old\n  }\n\n  // Used both to provide a JSON-safe object in .getHistory, and, when\n  // detaching a document, to split the history in two\n  function copyHistoryArray(events, newGroup, instantiateSel) {\n    var copy = [];\n    for (var i = 0; i < events.length; ++i) {\n      var event = events[i];\n      if (event.ranges) {\n        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);\n        continue\n      }\n      var changes = event.changes, newChanges = [];\n      copy.push({changes: newChanges});\n      for (var j = 0; j < changes.length; ++j) {\n        var change = changes[j], m = (void 0);\n        newChanges.push({from: change.from, to: change.to, text: change.text});\n        if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\\d+)$/)) {\n          if (indexOf(newGroup, Number(m[1])) > -1) {\n            lst(newChanges)[prop] = change[prop];\n            delete change[prop];\n          }\n        } } }\n      }\n    }\n    return copy\n  }\n\n  // The 'scroll' parameter given to many of these indicated whether\n  // the new cursor position should be scrolled into view after\n  // modifying the selection.\n\n  // If shift is held or the extend flag is set, extends a range to\n  // include a given position (and optionally a second position).\n  // Otherwise, simply returns the range between the given positions.\n  // Used for cursor motion and such.\n  function extendRange(range, head, other, extend) {\n    if (extend) {\n      var anchor = range.anchor;\n      if (other) {\n        var posBefore = cmp(head, anchor) < 0;\n        if (posBefore != (cmp(other, anchor) < 0)) {\n          anchor = head;\n          head = other;\n        } else if (posBefore != (cmp(head, other) < 0)) {\n          head = other;\n        }\n      }\n      return new Range(anchor, head)\n    } else {\n      return new Range(other || head, head)\n    }\n  }\n\n  // Extend the primary selection range, discard the rest.\n  function extendSelection(doc, head, other, options, extend) {\n    if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }\n    setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);\n  }\n\n  // Extend all selections (pos is an array of selections with length\n  // equal the number of selections)\n  function extendSelections(doc, heads, options) {\n    var out = [];\n    var extend = doc.cm && (doc.cm.display.shift || doc.extend);\n    for (var i = 0; i < doc.sel.ranges.length; i++)\n      { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }\n    var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);\n    setSelection(doc, newSel, options);\n  }\n\n  // Updates a single range in the selection.\n  function replaceOneSelection(doc, i, range, options) {\n    var ranges = doc.sel.ranges.slice(0);\n    ranges[i] = range;\n    setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);\n  }\n\n  // Reset the selection to a single range.\n  function setSimpleSelection(doc, anchor, head, options) {\n    setSelection(doc, simpleSelection(anchor, head), options);\n  }\n\n  // Give beforeSelectionChange handlers a change to influence a\n  // selection update.\n  function filterSelectionChange(doc, sel, options) {\n    var obj = {\n      ranges: sel.ranges,\n      update: function(ranges) {\n        var this$1 = this;\n\n        this.ranges = [];\n        for (var i = 0; i < ranges.length; i++)\n          { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),\n                                     clipPos(doc, ranges[i].head)); }\n      },\n      origin: options && options.origin\n    };\n    signal(doc, \"beforeSelectionChange\", doc, obj);\n    if (doc.cm) { signal(doc.cm, \"beforeSelectionChange\", doc.cm, obj); }\n    if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }\n    else { return sel }\n  }\n\n  function setSelectionReplaceHistory(doc, sel, options) {\n    var done = doc.history.done, last = lst(done);\n    if (last && last.ranges) {\n      done[done.length - 1] = sel;\n      setSelectionNoUndo(doc, sel, options);\n    } else {\n      setSelection(doc, sel, options);\n    }\n  }\n\n  // Set a new selection.\n  function setSelection(doc, sel, options) {\n    setSelectionNoUndo(doc, sel, options);\n    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);\n  }\n\n  function setSelectionNoUndo(doc, sel, options) {\n    if (hasHandler(doc, \"beforeSelectionChange\") || doc.cm && hasHandler(doc.cm, \"beforeSelectionChange\"))\n      { sel = filterSelectionChange(doc, sel, options); }\n\n    var bias = options && options.bias ||\n      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);\n    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));\n\n    if (!(options && options.scroll === false) && doc.cm)\n      { ensureCursorVisible(doc.cm); }\n  }\n\n  function setSelectionInner(doc, sel) {\n    if (sel.equals(doc.sel)) { return }\n\n    doc.sel = sel;\n\n    if (doc.cm) {\n      doc.cm.curOp.updateInput = 1;\n      doc.cm.curOp.selectionChanged = true;\n      signalCursorActivity(doc.cm);\n    }\n    signalLater(doc, \"cursorActivity\", doc);\n  }\n\n  // Verify that the selection does not partially select any atomic\n  // marked ranges.\n  function reCheckSelection(doc) {\n    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));\n  }\n\n  // Return a selection that does not partially select any atomic\n  // ranges.\n  function skipAtomicInSelection(doc, sel, bias, mayClear) {\n    var out;\n    for (var i = 0; i < sel.ranges.length; i++) {\n      var range = sel.ranges[i];\n      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];\n      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);\n      var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);\n      if (out || newAnchor != range.anchor || newHead != range.head) {\n        if (!out) { out = sel.ranges.slice(0, i); }\n        out[i] = new Range(newAnchor, newHead);\n      }\n    }\n    return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel\n  }\n\n  function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {\n    var line = getLine(doc, pos.line);\n    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n      var sp = line.markedSpans[i], m = sp.marker;\n\n      // Determine if we should prevent the cursor being placed to the left/right of an atomic marker\n      // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it\n      // is with selectLeft/Right\n      var preventCursorLeft = (\"selectLeft\" in m) ? !m.selectLeft : m.inclusiveLeft;\n      var preventCursorRight = (\"selectRight\" in m) ? !m.selectRight : m.inclusiveRight;\n\n      if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&\n          (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {\n        if (mayClear) {\n          signal(m, \"beforeCursorEnter\");\n          if (m.explicitlyCleared) {\n            if (!line.markedSpans) { break }\n            else {--i; continue}\n          }\n        }\n        if (!m.atomic) { continue }\n\n        if (oldPos) {\n          var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);\n          if (dir < 0 ? preventCursorRight : preventCursorLeft)\n            { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }\n          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))\n            { return skipAtomicInner(doc, near, pos, dir, mayClear) }\n        }\n\n        var far = m.find(dir < 0 ? -1 : 1);\n        if (dir < 0 ? preventCursorLeft : preventCursorRight)\n          { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }\n        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null\n      }\n    } }\n    return pos\n  }\n\n  // Ensure a given position is not inside an atomic range.\n  function skipAtomic(doc, pos, oldPos, bias, mayClear) {\n    var dir = bias || 1;\n    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||\n        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||\n        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||\n        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));\n    if (!found) {\n      doc.cantEdit = true;\n      return Pos(doc.first, 0)\n    }\n    return found\n  }\n\n  function movePos(doc, pos, dir, line) {\n    if (dir < 0 && pos.ch == 0) {\n      if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }\n      else { return null }\n    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {\n      if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }\n      else { return null }\n    } else {\n      return new Pos(pos.line, pos.ch + dir)\n    }\n  }\n\n  function selectAll(cm) {\n    cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);\n  }\n\n  // UPDATING\n\n  // Allow \"beforeChange\" event handlers to influence a change\n  function filterChange(doc, change, update) {\n    var obj = {\n      canceled: false,\n      from: change.from,\n      to: change.to,\n      text: change.text,\n      origin: change.origin,\n      cancel: function () { return obj.canceled = true; }\n    };\n    if (update) { obj.update = function (from, to, text, origin) {\n      if (from) { obj.from = clipPos(doc, from); }\n      if (to) { obj.to = clipPos(doc, to); }\n      if (text) { obj.text = text; }\n      if (origin !== undefined) { obj.origin = origin; }\n    }; }\n    signal(doc, \"beforeChange\", doc, obj);\n    if (doc.cm) { signal(doc.cm, \"beforeChange\", doc.cm, obj); }\n\n    if (obj.canceled) {\n      if (doc.cm) { doc.cm.curOp.updateInput = 2; }\n      return null\n    }\n    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}\n  }\n\n  // Apply a change to a document, and add it to the document's\n  // history, and propagating it to all linked documents.\n  function makeChange(doc, change, ignoreReadOnly) {\n    if (doc.cm) {\n      if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }\n      if (doc.cm.state.suppressEdits) { return }\n    }\n\n    if (hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\")) {\n      change = filterChange(doc, change, true);\n      if (!change) { return }\n    }\n\n    // Possibly split or suppress the update based on the presence\n    // of read-only spans in its range.\n    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);\n    if (split) {\n      for (var i = split.length - 1; i >= 0; --i)\n        { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [\"\"] : change.text, origin: change.origin}); }\n    } else {\n      makeChangeInner(doc, change);\n    }\n  }\n\n  function makeChangeInner(doc, change) {\n    if (change.text.length == 1 && change.text[0] == \"\" && cmp(change.from, change.to) == 0) { return }\n    var selAfter = computeSelAfterChange(doc, change);\n    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);\n\n    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));\n    var rebased = [];\n\n    linkedDocs(doc, function (doc, sharedHist) {\n      if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n        rebaseHist(doc.history, change);\n        rebased.push(doc.history);\n      }\n      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));\n    });\n  }\n\n  // Revert a change stored in a document's history.\n  function makeChangeFromHistory(doc, type, allowSelectionOnly) {\n    var suppress = doc.cm && doc.cm.state.suppressEdits;\n    if (suppress && !allowSelectionOnly) { return }\n\n    var hist = doc.history, event, selAfter = doc.sel;\n    var source = type == \"undo\" ? hist.done : hist.undone, dest = type == \"undo\" ? hist.undone : hist.done;\n\n    // Verify that there is a useable event (so that ctrl-z won't\n    // needlessly clear selection events)\n    var i = 0;\n    for (; i < source.length; i++) {\n      event = source[i];\n      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)\n        { break }\n    }\n    if (i == source.length) { return }\n    hist.lastOrigin = hist.lastSelOrigin = null;\n\n    for (;;) {\n      event = source.pop();\n      if (event.ranges) {\n        pushSelectionToHistory(event, dest);\n        if (allowSelectionOnly && !event.equals(doc.sel)) {\n          setSelection(doc, event, {clearRedo: false});\n          return\n        }\n        selAfter = event;\n      } else if (suppress) {\n        source.push(event);\n        return\n      } else { break }\n    }\n\n    // Build up a reverse change object to add to the opposite history\n    // stack (redo when undoing, and vice versa).\n    var antiChanges = [];\n    pushSelectionToHistory(selAfter, dest);\n    dest.push({changes: antiChanges, generation: hist.generation});\n    hist.generation = event.generation || ++hist.maxGeneration;\n\n    var filter = hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\");\n\n    var loop = function ( i ) {\n      var change = event.changes[i];\n      change.origin = type;\n      if (filter && !filterChange(doc, change, false)) {\n        source.length = 0;\n        return {}\n      }\n\n      antiChanges.push(historyChangeFromChange(doc, change));\n\n      var after = i ? computeSelAfterChange(doc, change) : lst(source);\n      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));\n      if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }\n      var rebased = [];\n\n      // Propagate to the linked documents\n      linkedDocs(doc, function (doc, sharedHist) {\n        if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n          rebaseHist(doc.history, change);\n          rebased.push(doc.history);\n        }\n        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));\n      });\n    };\n\n    for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {\n      var returned = loop( i$1 );\n\n      if ( returned ) return returned.v;\n    }\n  }\n\n  // Sub-views need their line numbers shifted when text is added\n  // above or below them in the parent document.\n  function shiftDoc(doc, distance) {\n    if (distance == 0) { return }\n    doc.first += distance;\n    doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(\n      Pos(range.anchor.line + distance, range.anchor.ch),\n      Pos(range.head.line + distance, range.head.ch)\n    ); }), doc.sel.primIndex);\n    if (doc.cm) {\n      regChange(doc.cm, doc.first, doc.first - distance, distance);\n      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)\n        { regLineChange(doc.cm, l, \"gutter\"); }\n    }\n  }\n\n  // More lower-level change function, handling only a single document\n  // (not linked ones).\n  function makeChangeSingleDoc(doc, change, selAfter, spans) {\n    if (doc.cm && !doc.cm.curOp)\n      { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }\n\n    if (change.to.line < doc.first) {\n      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));\n      return\n    }\n    if (change.from.line > doc.lastLine()) { return }\n\n    // Clip the change to the size of this doc\n    if (change.from.line < doc.first) {\n      var shift = change.text.length - 1 - (doc.first - change.from.line);\n      shiftDoc(doc, shift);\n      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),\n                text: [lst(change.text)], origin: change.origin};\n    }\n    var last = doc.lastLine();\n    if (change.to.line > last) {\n      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),\n                text: [change.text[0]], origin: change.origin};\n    }\n\n    change.removed = getBetween(doc, change.from, change.to);\n\n    if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }\n    if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }\n    else { updateDoc(doc, change, spans); }\n    setSelectionNoUndo(doc, selAfter, sel_dontScroll);\n\n    if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))\n      { doc.cantEdit = false; }\n  }\n\n  // Handle the interaction of a change to a document with the editor\n  // that this document is part of.\n  function makeChangeSingleDocInEditor(cm, change, spans) {\n    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;\n\n    var recomputeMaxLength = false, checkWidthStart = from.line;\n    if (!cm.options.lineWrapping) {\n      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));\n      doc.iter(checkWidthStart, to.line + 1, function (line) {\n        if (line == display.maxLine) {\n          recomputeMaxLength = true;\n          return true\n        }\n      });\n    }\n\n    if (doc.sel.contains(change.from, change.to) > -1)\n      { signalCursorActivity(cm); }\n\n    updateDoc(doc, change, spans, estimateHeight(cm));\n\n    if (!cm.options.lineWrapping) {\n      doc.iter(checkWidthStart, from.line + change.text.length, function (line) {\n        var len = lineLength(line);\n        if (len > display.maxLineLength) {\n          display.maxLine = line;\n          display.maxLineLength = len;\n          display.maxLineChanged = true;\n          recomputeMaxLength = false;\n        }\n      });\n      if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }\n    }\n\n    retreatFrontier(doc, from.line);\n    startWorker(cm, 400);\n\n    var lendiff = change.text.length - (to.line - from.line) - 1;\n    // Remember that these lines changed, for updating the display\n    if (change.full)\n      { regChange(cm); }\n    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))\n      { regLineChange(cm, from.line, \"text\"); }\n    else\n      { regChange(cm, from.line, to.line + 1, lendiff); }\n\n    var changesHandler = hasHandler(cm, \"changes\"), changeHandler = hasHandler(cm, \"change\");\n    if (changeHandler || changesHandler) {\n      var obj = {\n        from: from, to: to,\n        text: change.text,\n        removed: change.removed,\n        origin: change.origin\n      };\n      if (changeHandler) { signalLater(cm, \"change\", cm, obj); }\n      if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }\n    }\n    cm.display.selForContextMenu = null;\n  }\n\n  function replaceRange(doc, code, from, to, origin) {\n    var assign;\n\n    if (!to) { to = from; }\n    if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }\n    if (typeof code == \"string\") { code = doc.splitLines(code); }\n    makeChange(doc, {from: from, to: to, text: code, origin: origin});\n  }\n\n  // Rebasing/resetting history to deal with externally-sourced changes\n\n  function rebaseHistSelSingle(pos, from, to, diff) {\n    if (to < pos.line) {\n      pos.line += diff;\n    } else if (from < pos.line) {\n      pos.line = from;\n      pos.ch = 0;\n    }\n  }\n\n  // Tries to rebase an array of history events given a change in the\n  // document. If the change touches the same lines as the event, the\n  // event, and everything 'behind' it, is discarded. If the change is\n  // before the event, the event's positions are updated. Uses a\n  // copy-on-write scheme for the positions, to avoid having to\n  // reallocate them all on every rebase, but also avoid problems with\n  // shared position objects being unsafely updated.\n  function rebaseHistArray(array, from, to, diff) {\n    for (var i = 0; i < array.length; ++i) {\n      var sub = array[i], ok = true;\n      if (sub.ranges) {\n        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }\n        for (var j = 0; j < sub.ranges.length; j++) {\n          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);\n          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);\n        }\n        continue\n      }\n      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {\n        var cur = sub.changes[j$1];\n        if (to < cur.from.line) {\n          cur.from = Pos(cur.from.line + diff, cur.from.ch);\n          cur.to = Pos(cur.to.line + diff, cur.to.ch);\n        } else if (from <= cur.to.line) {\n          ok = false;\n          break\n        }\n      }\n      if (!ok) {\n        array.splice(0, i + 1);\n        i = 0;\n      }\n    }\n  }\n\n  function rebaseHist(hist, change) {\n    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;\n    rebaseHistArray(hist.done, from, to, diff);\n    rebaseHistArray(hist.undone, from, to, diff);\n  }\n\n  // Utility for applying a change to a line by handle or number,\n  // returning the number and optionally registering the line as\n  // changed.\n  function changeLine(doc, handle, changeType, op) {\n    var no = handle, line = handle;\n    if (typeof handle == \"number\") { line = getLine(doc, clipLine(doc, handle)); }\n    else { no = lineNo(handle); }\n    if (no == null) { return null }\n    if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }\n    return line\n  }\n\n  // The document is represented as a BTree consisting of leaves, with\n  // chunk of lines in them, and branches, with up to ten leaves or\n  // other branch nodes below them. The top node is always a branch\n  // node, and is the document object itself (meaning it has\n  // additional methods and properties).\n  //\n  // All nodes have parent links. The tree is used both to go from\n  // line numbers to line objects, and to go from objects to numbers.\n  // It also indexes by height, and is used to convert between height\n  // and line object, and to find the total height of the document.\n  //\n  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html\n\n  function LeafChunk(lines) {\n    var this$1 = this;\n\n    this.lines = lines;\n    this.parent = null;\n    var height = 0;\n    for (var i = 0; i < lines.length; ++i) {\n      lines[i].parent = this$1;\n      height += lines[i].height;\n    }\n    this.height = height;\n  }\n\n  LeafChunk.prototype = {\n    chunkSize: function() { return this.lines.length },\n\n    // Remove the n lines at offset 'at'.\n    removeInner: function(at, n) {\n      var this$1 = this;\n\n      for (var i = at, e = at + n; i < e; ++i) {\n        var line = this$1.lines[i];\n        this$1.height -= line.height;\n        cleanUpLine(line);\n        signalLater(line, \"delete\");\n      }\n      this.lines.splice(at, n);\n    },\n\n    // Helper used to collapse a small branch into a single leaf.\n    collapse: function(lines) {\n      lines.push.apply(lines, this.lines);\n    },\n\n    // Insert the given array of lines at offset 'at', count them as\n    // having the given height.\n    insertInner: function(at, lines, height) {\n      var this$1 = this;\n\n      this.height += height;\n      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));\n      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; }\n    },\n\n    // Used to iterate over a part of the tree.\n    iterN: function(at, n, op) {\n      var this$1 = this;\n\n      for (var e = at + n; at < e; ++at)\n        { if (op(this$1.lines[at])) { return true } }\n    }\n  };\n\n  function BranchChunk(children) {\n    var this$1 = this;\n\n    this.children = children;\n    var size = 0, height = 0;\n    for (var i = 0; i < children.length; ++i) {\n      var ch = children[i];\n      size += ch.chunkSize(); height += ch.height;\n      ch.parent = this$1;\n    }\n    this.size = size;\n    this.height = height;\n    this.parent = null;\n  }\n\n  BranchChunk.prototype = {\n    chunkSize: function() { return this.size },\n\n    removeInner: function(at, n) {\n      var this$1 = this;\n\n      this.size -= n;\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this$1.children[i], sz = child.chunkSize();\n        if (at < sz) {\n          var rm = Math.min(n, sz - at), oldHeight = child.height;\n          child.removeInner(at, rm);\n          this$1.height -= oldHeight - child.height;\n          if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; }\n          if ((n -= rm) == 0) { break }\n          at = 0;\n        } else { at -= sz; }\n      }\n      // If the result is smaller than 25 lines, ensure that it is a\n      // single leaf node.\n      if (this.size - n < 25 &&\n          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {\n        var lines = [];\n        this.collapse(lines);\n        this.children = [new LeafChunk(lines)];\n        this.children[0].parent = this;\n      }\n    },\n\n    collapse: function(lines) {\n      var this$1 = this;\n\n      for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); }\n    },\n\n    insertInner: function(at, lines, height) {\n      var this$1 = this;\n\n      this.size += lines.length;\n      this.height += height;\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this$1.children[i], sz = child.chunkSize();\n        if (at <= sz) {\n          child.insertInner(at, lines, height);\n          if (child.lines && child.lines.length > 50) {\n            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.\n            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.\n            var remaining = child.lines.length % 25 + 25;\n            for (var pos = remaining; pos < child.lines.length;) {\n              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));\n              child.height -= leaf.height;\n              this$1.children.splice(++i, 0, leaf);\n              leaf.parent = this$1;\n            }\n            child.lines = child.lines.slice(0, remaining);\n            this$1.maybeSpill();\n          }\n          break\n        }\n        at -= sz;\n      }\n    },\n\n    // When a node has grown, check whether it should be split.\n    maybeSpill: function() {\n      if (this.children.length <= 10) { return }\n      var me = this;\n      do {\n        var spilled = me.children.splice(me.children.length - 5, 5);\n        var sibling = new BranchChunk(spilled);\n        if (!me.parent) { // Become the parent node\n          var copy = new BranchChunk(me.children);\n          copy.parent = me;\n          me.children = [copy, sibling];\n          me = copy;\n       } else {\n          me.size -= sibling.size;\n          me.height -= sibling.height;\n          var myIndex = indexOf(me.parent.children, me);\n          me.parent.children.splice(myIndex + 1, 0, sibling);\n        }\n        sibling.parent = me.parent;\n      } while (me.children.length > 10)\n      me.parent.maybeSpill();\n    },\n\n    iterN: function(at, n, op) {\n      var this$1 = this;\n\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this$1.children[i], sz = child.chunkSize();\n        if (at < sz) {\n          var used = Math.min(n, sz - at);\n          if (child.iterN(at, used, op)) { return true }\n          if ((n -= used) == 0) { break }\n          at = 0;\n        } else { at -= sz; }\n      }\n    }\n  };\n\n  // Line widgets are block elements displayed above or below a line.\n\n  var LineWidget = function(doc, node, options) {\n    var this$1 = this;\n\n    if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))\n      { this$1[opt] = options[opt]; } } }\n    this.doc = doc;\n    this.node = node;\n  };\n\n  LineWidget.prototype.clear = function () {\n      var this$1 = this;\n\n    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);\n    if (no == null || !ws) { return }\n    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } }\n    if (!ws.length) { line.widgets = null; }\n    var height = widgetHeight(this);\n    updateLineHeight(line, Math.max(0, line.height - height));\n    if (cm) {\n      runInOp(cm, function () {\n        adjustScrollWhenAboveVisible(cm, line, -height);\n        regLineChange(cm, no, \"widget\");\n      });\n      signalLater(cm, \"lineWidgetCleared\", cm, this, no);\n    }\n  };\n\n  LineWidget.prototype.changed = function () {\n      var this$1 = this;\n\n    var oldH = this.height, cm = this.doc.cm, line = this.line;\n    this.height = null;\n    var diff = widgetHeight(this) - oldH;\n    if (!diff) { return }\n    if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }\n    if (cm) {\n      runInOp(cm, function () {\n        cm.curOp.forceUpdate = true;\n        adjustScrollWhenAboveVisible(cm, line, diff);\n        signalLater(cm, \"lineWidgetChanged\", cm, this$1, lineNo(line));\n      });\n    }\n  };\n  eventMixin(LineWidget);\n\n  function adjustScrollWhenAboveVisible(cm, line, diff) {\n    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))\n      { addToScrollTop(cm, diff); }\n  }\n\n  function addLineWidget(doc, handle, node, options) {\n    var widget = new LineWidget(doc, node, options);\n    var cm = doc.cm;\n    if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }\n    changeLine(doc, handle, \"widget\", function (line) {\n      var widgets = line.widgets || (line.widgets = []);\n      if (widget.insertAt == null) { widgets.push(widget); }\n      else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }\n      widget.line = line;\n      if (cm && !lineIsHidden(doc, line)) {\n        var aboveVisible = heightAtLine(line) < doc.scrollTop;\n        updateLineHeight(line, line.height + widgetHeight(widget));\n        if (aboveVisible) { addToScrollTop(cm, widget.height); }\n        cm.curOp.forceUpdate = true;\n      }\n      return true\n    });\n    if (cm) { signalLater(cm, \"lineWidgetAdded\", cm, widget, typeof handle == \"number\" ? handle : lineNo(handle)); }\n    return widget\n  }\n\n  // TEXTMARKERS\n\n  // Created with markText and setBookmark methods. A TextMarker is a\n  // handle that can be used to clear or find a marked position in the\n  // document. Line objects hold arrays (markedSpans) containing\n  // {from, to, marker} object pointing to such marker objects, and\n  // indicating that such a marker is present on that line. Multiple\n  // lines may point to the same marker when it spans across lines.\n  // The spans will have null for their from/to properties when the\n  // marker continues beyond the start/end of the line. Markers have\n  // links back to the lines they currently touch.\n\n  // Collapsed markers have unique ids, in order to be able to order\n  // them, which is needed for uniquely determining an outer marker\n  // when they overlap (they may nest, but not partially overlap).\n  var nextMarkerId = 0;\n\n  var TextMarker = function(doc, type) {\n    this.lines = [];\n    this.type = type;\n    this.doc = doc;\n    this.id = ++nextMarkerId;\n  };\n\n  // Clear the marker.\n  TextMarker.prototype.clear = function () {\n      var this$1 = this;\n\n    if (this.explicitlyCleared) { return }\n    var cm = this.doc.cm, withOp = cm && !cm.curOp;\n    if (withOp) { startOperation(cm); }\n    if (hasHandler(this, \"clear\")) {\n      var found = this.find();\n      if (found) { signalLater(this, \"clear\", found.from, found.to); }\n    }\n    var min = null, max = null;\n    for (var i = 0; i < this.lines.length; ++i) {\n      var line = this$1.lines[i];\n      var span = getMarkedSpanFor(line.markedSpans, this$1);\n      if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), \"text\"); }\n      else if (cm) {\n        if (span.to != null) { max = lineNo(line); }\n        if (span.from != null) { min = lineNo(line); }\n      }\n      line.markedSpans = removeMarkedSpan(line.markedSpans, span);\n      if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)\n        { updateLineHeight(line, textHeight(cm.display)); }\n    }\n    if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {\n      var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual);\n      if (len > cm.display.maxLineLength) {\n        cm.display.maxLine = visual;\n        cm.display.maxLineLength = len;\n        cm.display.maxLineChanged = true;\n      }\n    } }\n\n    if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }\n    this.lines.length = 0;\n    this.explicitlyCleared = true;\n    if (this.atomic && this.doc.cantEdit) {\n      this.doc.cantEdit = false;\n      if (cm) { reCheckSelection(cm.doc); }\n    }\n    if (cm) { signalLater(cm, \"markerCleared\", cm, this, min, max); }\n    if (withOp) { endOperation(cm); }\n    if (this.parent) { this.parent.clear(); }\n  };\n\n  // Find the position of the marker in the document. Returns a {from,\n  // to} object by default. Side can be passed to get a specific side\n  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the\n  // Pos objects returned contain a line object, rather than a line\n  // number (used to prevent looking up the same line twice).\n  TextMarker.prototype.find = function (side, lineObj) {\n      var this$1 = this;\n\n    if (side == null && this.type == \"bookmark\") { side = 1; }\n    var from, to;\n    for (var i = 0; i < this.lines.length; ++i) {\n      var line = this$1.lines[i];\n      var span = getMarkedSpanFor(line.markedSpans, this$1);\n      if (span.from != null) {\n        from = Pos(lineObj ? line : lineNo(line), span.from);\n        if (side == -1) { return from }\n      }\n      if (span.to != null) {\n        to = Pos(lineObj ? line : lineNo(line), span.to);\n        if (side == 1) { return to }\n      }\n    }\n    return from && {from: from, to: to}\n  };\n\n  // Signals that the marker's widget changed, and surrounding layout\n  // should be recomputed.\n  TextMarker.prototype.changed = function () {\n      var this$1 = this;\n\n    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;\n    if (!pos || !cm) { return }\n    runInOp(cm, function () {\n      var line = pos.line, lineN = lineNo(pos.line);\n      var view = findViewForLine(cm, lineN);\n      if (view) {\n        clearLineMeasurementCacheFor(view);\n        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;\n      }\n      cm.curOp.updateMaxLine = true;\n      if (!lineIsHidden(widget.doc, line) && widget.height != null) {\n        var oldHeight = widget.height;\n        widget.height = null;\n        var dHeight = widgetHeight(widget) - oldHeight;\n        if (dHeight)\n          { updateLineHeight(line, line.height + dHeight); }\n      }\n      signalLater(cm, \"markerChanged\", cm, this$1);\n    });\n  };\n\n  TextMarker.prototype.attachLine = function (line) {\n    if (!this.lines.length && this.doc.cm) {\n      var op = this.doc.cm.curOp;\n      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)\n        { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }\n    }\n    this.lines.push(line);\n  };\n\n  TextMarker.prototype.detachLine = function (line) {\n    this.lines.splice(indexOf(this.lines, line), 1);\n    if (!this.lines.length && this.doc.cm) {\n      var op = this.doc.cm.curOp\n      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);\n    }\n  };\n  eventMixin(TextMarker);\n\n  // Create a marker, wire it up to the right lines, and\n  function markText(doc, from, to, options, type) {\n    // Shared markers (across linked documents) are handled separately\n    // (markTextShared will call out to this again, once per\n    // document).\n    if (options && options.shared) { return markTextShared(doc, from, to, options, type) }\n    // Ensure we are in an operation.\n    if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }\n\n    var marker = new TextMarker(doc, type), diff = cmp(from, to);\n    if (options) { copyObj(options, marker, false); }\n    // Don't connect empty markers unless clearWhenEmpty is false\n    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)\n      { return marker }\n    if (marker.replacedWith) {\n      // Showing up as a widget implies collapsed (widget replaces text)\n      marker.collapsed = true;\n      marker.widgetNode = eltP(\"span\", [marker.replacedWith], \"CodeMirror-widget\");\n      if (!options.handleMouseEvents) { marker.widgetNode.setAttribute(\"cm-ignore-events\", \"true\"); }\n      if (options.insertLeft) { marker.widgetNode.insertLeft = true; }\n    }\n    if (marker.collapsed) {\n      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||\n          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))\n        { throw new Error(\"Inserting collapsed marker partially overlapping an existing one\") }\n      seeCollapsedSpans();\n    }\n\n    if (marker.addToHistory)\n      { addChangeToHistory(doc, {from: from, to: to, origin: \"markText\"}, doc.sel, NaN); }\n\n    var curLine = from.line, cm = doc.cm, updateMaxLine;\n    doc.iter(curLine, to.line + 1, function (line) {\n      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)\n        { updateMaxLine = true; }\n      if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }\n      addMarkedSpan(line, new MarkedSpan(marker,\n                                         curLine == from.line ? from.ch : null,\n                                         curLine == to.line ? to.ch : null));\n      ++curLine;\n    });\n    // lineIsHidden depends on the presence of the spans, so needs a second pass\n    if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {\n      if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }\n    }); }\n\n    if (marker.clearOnEnter) { on(marker, \"beforeCursorEnter\", function () { return marker.clear(); }); }\n\n    if (marker.readOnly) {\n      seeReadOnlySpans();\n      if (doc.history.done.length || doc.history.undone.length)\n        { doc.clearHistory(); }\n    }\n    if (marker.collapsed) {\n      marker.id = ++nextMarkerId;\n      marker.atomic = true;\n    }\n    if (cm) {\n      // Sync editor state\n      if (updateMaxLine) { cm.curOp.updateMaxLine = true; }\n      if (marker.collapsed)\n        { regChange(cm, from.line, to.line + 1); }\n      else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||\n               marker.attributes || marker.title)\n        { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, \"text\"); } }\n      if (marker.atomic) { reCheckSelection(cm.doc); }\n      signalLater(cm, \"markerAdded\", cm, marker);\n    }\n    return marker\n  }\n\n  // SHARED TEXTMARKERS\n\n  // A shared marker spans multiple linked documents. It is\n  // implemented as a meta-marker-object controlling multiple normal\n  // markers.\n  var SharedTextMarker = function(markers, primary) {\n    var this$1 = this;\n\n    this.markers = markers;\n    this.primary = primary;\n    for (var i = 0; i < markers.length; ++i)\n      { markers[i].parent = this$1; }\n  };\n\n  SharedTextMarker.prototype.clear = function () {\n      var this$1 = this;\n\n    if (this.explicitlyCleared) { return }\n    this.explicitlyCleared = true;\n    for (var i = 0; i < this.markers.length; ++i)\n      { this$1.markers[i].clear(); }\n    signalLater(this, \"clear\");\n  };\n\n  SharedTextMarker.prototype.find = function (side, lineObj) {\n    return this.primary.find(side, lineObj)\n  };\n  eventMixin(SharedTextMarker);\n\n  function markTextShared(doc, from, to, options, type) {\n    options = copyObj(options);\n    options.shared = false;\n    var markers = [markText(doc, from, to, options, type)], primary = markers[0];\n    var widget = options.widgetNode;\n    linkedDocs(doc, function (doc) {\n      if (widget) { options.widgetNode = widget.cloneNode(true); }\n      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));\n      for (var i = 0; i < doc.linked.length; ++i)\n        { if (doc.linked[i].isParent) { return } }\n      primary = lst(markers);\n    });\n    return new SharedTextMarker(markers, primary)\n  }\n\n  function findSharedMarkers(doc) {\n    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })\n  }\n\n  function copySharedMarkers(doc, markers) {\n    for (var i = 0; i < markers.length; i++) {\n      var marker = markers[i], pos = marker.find();\n      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);\n      if (cmp(mFrom, mTo)) {\n        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);\n        marker.markers.push(subMark);\n        subMark.parent = marker;\n      }\n    }\n  }\n\n  function detachSharedMarkers(markers) {\n    var loop = function ( i ) {\n      var marker = markers[i], linked = [marker.primary.doc];\n      linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });\n      for (var j = 0; j < marker.markers.length; j++) {\n        var subMarker = marker.markers[j];\n        if (indexOf(linked, subMarker.doc) == -1) {\n          subMarker.parent = null;\n          marker.markers.splice(j--, 1);\n        }\n      }\n    };\n\n    for (var i = 0; i < markers.length; i++) loop( i );\n  }\n\n  var nextDocId = 0;\n  var Doc = function(text, mode, firstLine, lineSep, direction) {\n    if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }\n    if (firstLine == null) { firstLine = 0; }\n\n    BranchChunk.call(this, [new LeafChunk([new Line(\"\", null)])]);\n    this.first = firstLine;\n    this.scrollTop = this.scrollLeft = 0;\n    this.cantEdit = false;\n    this.cleanGeneration = 1;\n    this.modeFrontier = this.highlightFrontier = firstLine;\n    var start = Pos(firstLine, 0);\n    this.sel = simpleSelection(start);\n    this.history = new History(null);\n    this.id = ++nextDocId;\n    this.modeOption = mode;\n    this.lineSep = lineSep;\n    this.direction = (direction == \"rtl\") ? \"rtl\" : \"ltr\";\n    this.extend = false;\n\n    if (typeof text == \"string\") { text = this.splitLines(text); }\n    updateDoc(this, {from: start, to: start, text: text});\n    setSelection(this, simpleSelection(start), sel_dontScroll);\n  };\n\n  Doc.prototype = createObj(BranchChunk.prototype, {\n    constructor: Doc,\n    // Iterate over the document. Supports two forms -- with only one\n    // argument, it calls that for each line in the document. With\n    // three, it iterates over the range given by the first two (with\n    // the second being non-inclusive).\n    iter: function(from, to, op) {\n      if (op) { this.iterN(from - this.first, to - from, op); }\n      else { this.iterN(this.first, this.first + this.size, from); }\n    },\n\n    // Non-public interface for adding and removing lines.\n    insert: function(at, lines) {\n      var height = 0;\n      for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }\n      this.insertInner(at - this.first, lines, height);\n    },\n    remove: function(at, n) { this.removeInner(at - this.first, n); },\n\n    // From here, the methods are part of the public interface. Most\n    // are also available from CodeMirror (editor) instances.\n\n    getValue: function(lineSep) {\n      var lines = getLines(this, this.first, this.first + this.size);\n      if (lineSep === false) { return lines }\n      return lines.join(lineSep || this.lineSeparator())\n    },\n    setValue: docMethodOp(function(code) {\n      var top = Pos(this.first, 0), last = this.first + this.size - 1;\n      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),\n                        text: this.splitLines(code), origin: \"setValue\", full: true}, true);\n      if (this.cm) { scrollToCoords(this.cm, 0, 0); }\n      setSelection(this, simpleSelection(top), sel_dontScroll);\n    }),\n    replaceRange: function(code, from, to, origin) {\n      from = clipPos(this, from);\n      to = to ? clipPos(this, to) : from;\n      replaceRange(this, code, from, to, origin);\n    },\n    getRange: function(from, to, lineSep) {\n      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));\n      if (lineSep === false) { return lines }\n      return lines.join(lineSep || this.lineSeparator())\n    },\n\n    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},\n\n    getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},\n    getLineNumber: function(line) {return lineNo(line)},\n\n    getLineHandleVisualStart: function(line) {\n      if (typeof line == \"number\") { line = getLine(this, line); }\n      return visualLine(line)\n    },\n\n    lineCount: function() {return this.size},\n    firstLine: function() {return this.first},\n    lastLine: function() {return this.first + this.size - 1},\n\n    clipPos: function(pos) {return clipPos(this, pos)},\n\n    getCursor: function(start) {\n      var range$$1 = this.sel.primary(), pos;\n      if (start == null || start == \"head\") { pos = range$$1.head; }\n      else if (start == \"anchor\") { pos = range$$1.anchor; }\n      else if (start == \"end\" || start == \"to\" || start === false) { pos = range$$1.to(); }\n      else { pos = range$$1.from(); }\n      return pos\n    },\n    listSelections: function() { return this.sel.ranges },\n    somethingSelected: function() {return this.sel.somethingSelected()},\n\n    setCursor: docMethodOp(function(line, ch, options) {\n      setSimpleSelection(this, clipPos(this, typeof line == \"number\" ? Pos(line, ch || 0) : line), null, options);\n    }),\n    setSelection: docMethodOp(function(anchor, head, options) {\n      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);\n    }),\n    extendSelection: docMethodOp(function(head, other, options) {\n      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);\n    }),\n    extendSelections: docMethodOp(function(heads, options) {\n      extendSelections(this, clipPosArray(this, heads), options);\n    }),\n    extendSelectionsBy: docMethodOp(function(f, options) {\n      var heads = map(this.sel.ranges, f);\n      extendSelections(this, clipPosArray(this, heads), options);\n    }),\n    setSelections: docMethodOp(function(ranges, primary, options) {\n      var this$1 = this;\n\n      if (!ranges.length) { return }\n      var out = [];\n      for (var i = 0; i < ranges.length; i++)\n        { out[i] = new Range(clipPos(this$1, ranges[i].anchor),\n                           clipPos(this$1, ranges[i].head)); }\n      if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }\n      setSelection(this, normalizeSelection(this.cm, out, primary), options);\n    }),\n    addSelection: docMethodOp(function(anchor, head, options) {\n      var ranges = this.sel.ranges.slice(0);\n      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));\n      setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);\n    }),\n\n    getSelection: function(lineSep) {\n      var this$1 = this;\n\n      var ranges = this.sel.ranges, lines;\n      for (var i = 0; i < ranges.length; i++) {\n        var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());\n        lines = lines ? lines.concat(sel) : sel;\n      }\n      if (lineSep === false) { return lines }\n      else { return lines.join(lineSep || this.lineSeparator()) }\n    },\n    getSelections: function(lineSep) {\n      var this$1 = this;\n\n      var parts = [], ranges = this.sel.ranges;\n      for (var i = 0; i < ranges.length; i++) {\n        var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());\n        if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); }\n        parts[i] = sel;\n      }\n      return parts\n    },\n    replaceSelection: function(code, collapse, origin) {\n      var dup = [];\n      for (var i = 0; i < this.sel.ranges.length; i++)\n        { dup[i] = code; }\n      this.replaceSelections(dup, collapse, origin || \"+input\");\n    },\n    replaceSelections: docMethodOp(function(code, collapse, origin) {\n      var this$1 = this;\n\n      var changes = [], sel = this.sel;\n      for (var i = 0; i < sel.ranges.length; i++) {\n        var range$$1 = sel.ranges[i];\n        changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin};\n      }\n      var newSel = collapse && collapse != \"end\" && computeReplacedSel(this, changes, collapse);\n      for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)\n        { makeChange(this$1, changes[i$1]); }\n      if (newSel) { setSelectionReplaceHistory(this, newSel); }\n      else if (this.cm) { ensureCursorVisible(this.cm); }\n    }),\n    undo: docMethodOp(function() {makeChangeFromHistory(this, \"undo\");}),\n    redo: docMethodOp(function() {makeChangeFromHistory(this, \"redo\");}),\n    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"undo\", true);}),\n    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"redo\", true);}),\n\n    setExtending: function(val) {this.extend = val;},\n    getExtending: function() {return this.extend},\n\n    historySize: function() {\n      var hist = this.history, done = 0, undone = 0;\n      for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }\n      for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }\n      return {undo: done, redo: undone}\n    },\n    clearHistory: function() {this.history = new History(this.history.maxGeneration);},\n\n    markClean: function() {\n      this.cleanGeneration = this.changeGeneration(true);\n    },\n    changeGeneration: function(forceSplit) {\n      if (forceSplit)\n        { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }\n      return this.history.generation\n    },\n    isClean: function (gen) {\n      return this.history.generation == (gen || this.cleanGeneration)\n    },\n\n    getHistory: function() {\n      return {done: copyHistoryArray(this.history.done),\n              undone: copyHistoryArray(this.history.undone)}\n    },\n    setHistory: function(histData) {\n      var hist = this.history = new History(this.history.maxGeneration);\n      hist.done = copyHistoryArray(histData.done.slice(0), null, true);\n      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);\n    },\n\n    setGutterMarker: docMethodOp(function(line, gutterID, value) {\n      return changeLine(this, line, \"gutter\", function (line) {\n        var markers = line.gutterMarkers || (line.gutterMarkers = {});\n        markers[gutterID] = value;\n        if (!value && isEmpty(markers)) { line.gutterMarkers = null; }\n        return true\n      })\n    }),\n\n    clearGutter: docMethodOp(function(gutterID) {\n      var this$1 = this;\n\n      this.iter(function (line) {\n        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {\n          changeLine(this$1, line, \"gutter\", function () {\n            line.gutterMarkers[gutterID] = null;\n            if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }\n            return true\n          });\n        }\n      });\n    }),\n\n    lineInfo: function(line) {\n      var n;\n      if (typeof line == \"number\") {\n        if (!isLine(this, line)) { return null }\n        n = line;\n        line = getLine(this, line);\n        if (!line) { return null }\n      } else {\n        n = lineNo(line);\n        if (n == null) { return null }\n      }\n      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,\n              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,\n              widgets: line.widgets}\n    },\n\n    addLineClass: docMethodOp(function(handle, where, cls) {\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n        var prop = where == \"text\" ? \"textClass\"\n                 : where == \"background\" ? \"bgClass\"\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\n        if (!line[prop]) { line[prop] = cls; }\n        else if (classTest(cls).test(line[prop])) { return false }\n        else { line[prop] += \" \" + cls; }\n        return true\n      })\n    }),\n    removeLineClass: docMethodOp(function(handle, where, cls) {\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n        var prop = where == \"text\" ? \"textClass\"\n                 : where == \"background\" ? \"bgClass\"\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\n        var cur = line[prop];\n        if (!cur) { return false }\n        else if (cls == null) { line[prop] = null; }\n        else {\n          var found = cur.match(classTest(cls));\n          if (!found) { return false }\n          var end = found.index + found[0].length;\n          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? \"\" : \" \") + cur.slice(end) || null;\n        }\n        return true\n      })\n    }),\n\n    addLineWidget: docMethodOp(function(handle, node, options) {\n      return addLineWidget(this, handle, node, options)\n    }),\n    removeLineWidget: function(widget) { widget.clear(); },\n\n    markText: function(from, to, options) {\n      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || \"range\")\n    },\n    setBookmark: function(pos, options) {\n      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),\n                      insertLeft: options && options.insertLeft,\n                      clearWhenEmpty: false, shared: options && options.shared,\n                      handleMouseEvents: options && options.handleMouseEvents};\n      pos = clipPos(this, pos);\n      return markText(this, pos, pos, realOpts, \"bookmark\")\n    },\n    findMarksAt: function(pos) {\n      pos = clipPos(this, pos);\n      var markers = [], spans = getLine(this, pos.line).markedSpans;\n      if (spans) { for (var i = 0; i < spans.length; ++i) {\n        var span = spans[i];\n        if ((span.from == null || span.from <= pos.ch) &&\n            (span.to == null || span.to >= pos.ch))\n          { markers.push(span.marker.parent || span.marker); }\n      } }\n      return markers\n    },\n    findMarks: function(from, to, filter) {\n      from = clipPos(this, from); to = clipPos(this, to);\n      var found = [], lineNo$$1 = from.line;\n      this.iter(from.line, to.line + 1, function (line) {\n        var spans = line.markedSpans;\n        if (spans) { for (var i = 0; i < spans.length; i++) {\n          var span = spans[i];\n          if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to ||\n                span.from == null && lineNo$$1 != from.line ||\n                span.from != null && lineNo$$1 == to.line && span.from >= to.ch) &&\n              (!filter || filter(span.marker)))\n            { found.push(span.marker.parent || span.marker); }\n        } }\n        ++lineNo$$1;\n      });\n      return found\n    },\n    getAllMarks: function() {\n      var markers = [];\n      this.iter(function (line) {\n        var sps = line.markedSpans;\n        if (sps) { for (var i = 0; i < sps.length; ++i)\n          { if (sps[i].from != null) { markers.push(sps[i].marker); } } }\n      });\n      return markers\n    },\n\n    posFromIndex: function(off) {\n      var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length;\n      this.iter(function (line) {\n        var sz = line.text.length + sepSize;\n        if (sz > off) { ch = off; return true }\n        off -= sz;\n        ++lineNo$$1;\n      });\n      return clipPos(this, Pos(lineNo$$1, ch))\n    },\n    indexFromPos: function (coords) {\n      coords = clipPos(this, coords);\n      var index = coords.ch;\n      if (coords.line < this.first || coords.ch < 0) { return 0 }\n      var sepSize = this.lineSeparator().length;\n      this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value\n        index += line.text.length + sepSize;\n      });\n      return index\n    },\n\n    copy: function(copyHistory) {\n      var doc = new Doc(getLines(this, this.first, this.first + this.size),\n                        this.modeOption, this.first, this.lineSep, this.direction);\n      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;\n      doc.sel = this.sel;\n      doc.extend = false;\n      if (copyHistory) {\n        doc.history.undoDepth = this.history.undoDepth;\n        doc.setHistory(this.getHistory());\n      }\n      return doc\n    },\n\n    linkedDoc: function(options) {\n      if (!options) { options = {}; }\n      var from = this.first, to = this.first + this.size;\n      if (options.from != null && options.from > from) { from = options.from; }\n      if (options.to != null && options.to < to) { to = options.to; }\n      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);\n      if (options.sharedHist) { copy.history = this.history\n      ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});\n      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];\n      copySharedMarkers(copy, findSharedMarkers(this));\n      return copy\n    },\n    unlinkDoc: function(other) {\n      var this$1 = this;\n\n      if (other instanceof CodeMirror) { other = other.doc; }\n      if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {\n        var link = this$1.linked[i];\n        if (link.doc != other) { continue }\n        this$1.linked.splice(i, 1);\n        other.unlinkDoc(this$1);\n        detachSharedMarkers(findSharedMarkers(this$1));\n        break\n      } }\n      // If the histories were shared, split them again\n      if (other.history == this.history) {\n        var splitIds = [other.id];\n        linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);\n        other.history = new History(null);\n        other.history.done = copyHistoryArray(this.history.done, splitIds);\n        other.history.undone = copyHistoryArray(this.history.undone, splitIds);\n      }\n    },\n    iterLinkedDocs: function(f) {linkedDocs(this, f);},\n\n    getMode: function() {return this.mode},\n    getEditor: function() {return this.cm},\n\n    splitLines: function(str) {\n      if (this.lineSep) { return str.split(this.lineSep) }\n      return splitLinesAuto(str)\n    },\n    lineSeparator: function() { return this.lineSep || \"\\n\" },\n\n    setDirection: docMethodOp(function (dir) {\n      if (dir != \"rtl\") { dir = \"ltr\"; }\n      if (dir == this.direction) { return }\n      this.direction = dir;\n      this.iter(function (line) { return line.order = null; });\n      if (this.cm) { directionChanged(this.cm); }\n    })\n  });\n\n  // Public alias.\n  Doc.prototype.eachLine = Doc.prototype.iter;\n\n  // Kludge to work around strange IE behavior where it'll sometimes\n  // re-fire a series of drag-related events right after the drop (#1551)\n  var lastDrop = 0;\n\n  function onDrop(e) {\n    var cm = this;\n    clearDragCursor(cm);\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))\n      { return }\n    e_preventDefault(e);\n    if (ie) { lastDrop = +new Date; }\n    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;\n    if (!pos || cm.isReadOnly()) { return }\n    // Might be a file drop, in which case we simply extract the text\n    // and insert it.\n    if (files && files.length && window.FileReader && window.File) {\n      var n = files.length, text = Array(n), read = 0;\n      var loadFile = function (file, i) {\n        if (cm.options.allowDropFileTypes &&\n            indexOf(cm.options.allowDropFileTypes, file.type) == -1)\n          { return }\n\n        var reader = new FileReader;\n        reader.onload = operation(cm, function () {\n          var content = reader.result;\n          if (/[\\x00-\\x08\\x0e-\\x1f]{2}/.test(content)) { content = \"\"; }\n          text[i] = content;\n          if (++read == n) {\n            pos = clipPos(cm.doc, pos);\n            var change = {from: pos, to: pos,\n                          text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),\n                          origin: \"paste\"};\n            makeChange(cm.doc, change);\n            setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));\n          }\n        });\n        reader.readAsText(file);\n      };\n      for (var i = 0; i < n; ++i) { loadFile(files[i], i); }\n    } else { // Normal drop\n      // Don't do a replace if the drop happened inside of the selected text.\n      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {\n        cm.state.draggingText(e);\n        // Ensure the editor is re-focused\n        setTimeout(function () { return cm.display.input.focus(); }, 20);\n        return\n      }\n      try {\n        var text$1 = e.dataTransfer.getData(\"Text\");\n        if (text$1) {\n          var selected;\n          if (cm.state.draggingText && !cm.state.draggingText.copy)\n            { selected = cm.listSelections(); }\n          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));\n          if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)\n            { replaceRange(cm.doc, \"\", selected[i$1].anchor, selected[i$1].head, \"drag\"); } }\n          cm.replaceSelection(text$1, \"around\", \"paste\");\n          cm.display.input.focus();\n        }\n      }\n      catch(e){}\n    }\n  }\n\n  function onDragStart(cm, e) {\n    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }\n\n    e.dataTransfer.setData(\"Text\", cm.getSelection());\n    e.dataTransfer.effectAllowed = \"copyMove\";\n\n    // Use dummy image instead of default browsers image.\n    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.\n    if (e.dataTransfer.setDragImage && !safari) {\n      var img = elt(\"img\", null, null, \"position: fixed; left: 0; top: 0;\");\n      img.src = \"data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\";\n      if (presto) {\n        img.width = img.height = 1;\n        cm.display.wrapper.appendChild(img);\n        // Force a relayout, or Opera won't use our image for some obscure reason\n        img._top = img.offsetTop;\n      }\n      e.dataTransfer.setDragImage(img, 0, 0);\n      if (presto) { img.parentNode.removeChild(img); }\n    }\n  }\n\n  function onDragOver(cm, e) {\n    var pos = posFromMouse(cm, e);\n    if (!pos) { return }\n    var frag = document.createDocumentFragment();\n    drawSelectionCursor(cm, pos, frag);\n    if (!cm.display.dragCursor) {\n      cm.display.dragCursor = elt(\"div\", null, \"CodeMirror-cursors CodeMirror-dragcursors\");\n      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);\n    }\n    removeChildrenAndAdd(cm.display.dragCursor, frag);\n  }\n\n  function clearDragCursor(cm) {\n    if (cm.display.dragCursor) {\n      cm.display.lineSpace.removeChild(cm.display.dragCursor);\n      cm.display.dragCursor = null;\n    }\n  }\n\n  // These must be handled carefully, because naively registering a\n  // handler for each editor will cause the editors to never be\n  // garbage collected.\n\n  function forEachCodeMirror(f) {\n    if (!document.getElementsByClassName) { return }\n    var byClass = document.getElementsByClassName(\"CodeMirror\"), editors = [];\n    for (var i = 0; i < byClass.length; i++) {\n      var cm = byClass[i].CodeMirror;\n      if (cm) { editors.push(cm); }\n    }\n    if (editors.length) { editors[0].operation(function () {\n      for (var i = 0; i < editors.length; i++) { f(editors[i]); }\n    }); }\n  }\n\n  var globalsRegistered = false;\n  function ensureGlobalHandlers() {\n    if (globalsRegistered) { return }\n    registerGlobalHandlers();\n    globalsRegistered = true;\n  }\n  function registerGlobalHandlers() {\n    // When the window resizes, we need to refresh active editors.\n    var resizeTimer;\n    on(window, \"resize\", function () {\n      if (resizeTimer == null) { resizeTimer = setTimeout(function () {\n        resizeTimer = null;\n        forEachCodeMirror(onResize);\n      }, 100); }\n    });\n    // When the window loses focus, we want to show the editor as blurred\n    on(window, \"blur\", function () { return forEachCodeMirror(onBlur); });\n  }\n  // Called when the window resizes\n  function onResize(cm) {\n    var d = cm.display;\n    // Might be a text scaling operation, clear size caches.\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\n    d.scrollbarsClipped = false;\n    cm.setSize();\n  }\n\n  var keyNames = {\n    3: \"Pause\", 8: \"Backspace\", 9: \"Tab\", 13: \"Enter\", 16: \"Shift\", 17: \"Ctrl\", 18: \"Alt\",\n    19: \"Pause\", 20: \"CapsLock\", 27: \"Esc\", 32: \"Space\", 33: \"PageUp\", 34: \"PageDown\", 35: \"End\",\n    36: \"Home\", 37: \"Left\", 38: \"Up\", 39: \"Right\", 40: \"Down\", 44: \"PrintScrn\", 45: \"Insert\",\n    46: \"Delete\", 59: \";\", 61: \"=\", 91: \"Mod\", 92: \"Mod\", 93: \"Mod\",\n    106: \"*\", 107: \"=\", 109: \"-\", 110: \".\", 111: \"/\", 145: \"ScrollLock\",\n    173: \"-\", 186: \";\", 187: \"=\", 188: \",\", 189: \"-\", 190: \".\", 191: \"/\", 192: \"`\", 219: \"[\", 220: \"\\\\\",\n    221: \"]\", 222: \"'\", 63232: \"Up\", 63233: \"Down\", 63234: \"Left\", 63235: \"Right\", 63272: \"Delete\",\n    63273: \"Home\", 63275: \"End\", 63276: \"PageUp\", 63277: \"PageDown\", 63302: \"Insert\"\n  };\n\n  // Number keys\n  for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }\n  // Alphabetic keys\n  for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }\n  // Function keys\n  for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = \"F\" + i$2; }\n\n  var keyMap = {};\n\n  keyMap.basic = {\n    \"Left\": \"goCharLeft\", \"Right\": \"goCharRight\", \"Up\": \"goLineUp\", \"Down\": \"goLineDown\",\n    \"End\": \"goLineEnd\", \"Home\": \"goLineStartSmart\", \"PageUp\": \"goPageUp\", \"PageDown\": \"goPageDown\",\n    \"Delete\": \"delCharAfter\", \"Backspace\": \"delCharBefore\", \"Shift-Backspace\": \"delCharBefore\",\n    \"Tab\": \"defaultTab\", \"Shift-Tab\": \"indentAuto\",\n    \"Enter\": \"newlineAndIndent\", \"Insert\": \"toggleOverwrite\",\n    \"Esc\": \"singleSelection\"\n  };\n  // Note that the save and find-related commands aren't defined by\n  // default. User code or addons can define them. Unknown commands\n  // are simply ignored.\n  keyMap.pcDefault = {\n    \"Ctrl-A\": \"selectAll\", \"Ctrl-D\": \"deleteLine\", \"Ctrl-Z\": \"undo\", \"Shift-Ctrl-Z\": \"redo\", \"Ctrl-Y\": \"redo\",\n    \"Ctrl-Home\": \"goDocStart\", \"Ctrl-End\": \"goDocEnd\", \"Ctrl-Up\": \"goLineUp\", \"Ctrl-Down\": \"goLineDown\",\n    \"Ctrl-Left\": \"goGroupLeft\", \"Ctrl-Right\": \"goGroupRight\", \"Alt-Left\": \"goLineStart\", \"Alt-Right\": \"goLineEnd\",\n    \"Ctrl-Backspace\": \"delGroupBefore\", \"Ctrl-Delete\": \"delGroupAfter\", \"Ctrl-S\": \"save\", \"Ctrl-F\": \"find\",\n    \"Ctrl-G\": \"findNext\", \"Shift-Ctrl-G\": \"findPrev\", \"Shift-Ctrl-F\": \"replace\", \"Shift-Ctrl-R\": \"replaceAll\",\n    \"Ctrl-[\": \"indentLess\", \"Ctrl-]\": \"indentMore\",\n    \"Ctrl-U\": \"undoSelection\", \"Shift-Ctrl-U\": \"redoSelection\", \"Alt-U\": \"redoSelection\",\n    \"fallthrough\": \"basic\"\n  };\n  // Very basic readline/emacs-style bindings, which are standard on Mac.\n  keyMap.emacsy = {\n    \"Ctrl-F\": \"goCharRight\", \"Ctrl-B\": \"goCharLeft\", \"Ctrl-P\": \"goLineUp\", \"Ctrl-N\": \"goLineDown\",\n    \"Alt-F\": \"goWordRight\", \"Alt-B\": \"goWordLeft\", \"Ctrl-A\": \"goLineStart\", \"Ctrl-E\": \"goLineEnd\",\n    \"Ctrl-V\": \"goPageDown\", \"Shift-Ctrl-V\": \"goPageUp\", \"Ctrl-D\": \"delCharAfter\", \"Ctrl-H\": \"delCharBefore\",\n    \"Alt-D\": \"delWordAfter\", \"Alt-Backspace\": \"delWordBefore\", \"Ctrl-K\": \"killLine\", \"Ctrl-T\": \"transposeChars\",\n    \"Ctrl-O\": \"openLine\"\n  };\n  keyMap.macDefault = {\n    \"Cmd-A\": \"selectAll\", \"Cmd-D\": \"deleteLine\", \"Cmd-Z\": \"undo\", \"Shift-Cmd-Z\": \"redo\", \"Cmd-Y\": \"redo\",\n    \"Cmd-Home\": \"goDocStart\", \"Cmd-Up\": \"goDocStart\", \"Cmd-End\": \"goDocEnd\", \"Cmd-Down\": \"goDocEnd\", \"Alt-Left\": \"goGroupLeft\",\n    \"Alt-Right\": \"goGroupRight\", \"Cmd-Left\": \"goLineLeft\", \"Cmd-Right\": \"goLineRight\", \"Alt-Backspace\": \"delGroupBefore\",\n    \"Ctrl-Alt-Backspace\": \"delGroupAfter\", \"Alt-Delete\": \"delGroupAfter\", \"Cmd-S\": \"save\", \"Cmd-F\": \"find\",\n    \"Cmd-G\": \"findNext\", \"Shift-Cmd-G\": \"findPrev\", \"Cmd-Alt-F\": \"replace\", \"Shift-Cmd-Alt-F\": \"replaceAll\",\n    \"Cmd-[\": \"indentLess\", \"Cmd-]\": \"indentMore\", \"Cmd-Backspace\": \"delWrappedLineLeft\", \"Cmd-Delete\": \"delWrappedLineRight\",\n    \"Cmd-U\": \"undoSelection\", \"Shift-Cmd-U\": \"redoSelection\", \"Ctrl-Up\": \"goDocStart\", \"Ctrl-Down\": \"goDocEnd\",\n    \"fallthrough\": [\"basic\", \"emacsy\"]\n  };\n  keyMap[\"default\"] = mac ? keyMap.macDefault : keyMap.pcDefault;\n\n  // KEYMAP DISPATCH\n\n  function normalizeKeyName(name) {\n    var parts = name.split(/-(?!$)/);\n    name = parts[parts.length - 1];\n    var alt, ctrl, shift, cmd;\n    for (var i = 0; i < parts.length - 1; i++) {\n      var mod = parts[i];\n      if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }\n      else if (/^a(lt)?$/i.test(mod)) { alt = true; }\n      else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }\n      else if (/^s(hift)?$/i.test(mod)) { shift = true; }\n      else { throw new Error(\"Unrecognized modifier name: \" + mod) }\n    }\n    if (alt) { name = \"Alt-\" + name; }\n    if (ctrl) { name = \"Ctrl-\" + name; }\n    if (cmd) { name = \"Cmd-\" + name; }\n    if (shift) { name = \"Shift-\" + name; }\n    return name\n  }\n\n  // This is a kludge to keep keymaps mostly working as raw objects\n  // (backwards compatibility) while at the same time support features\n  // like normalization and multi-stroke key bindings. It compiles a\n  // new normalized keymap, and then updates the old object to reflect\n  // this.\n  function normalizeKeyMap(keymap) {\n    var copy = {};\n    for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {\n      var value = keymap[keyname];\n      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }\n      if (value == \"...\") { delete keymap[keyname]; continue }\n\n      var keys = map(keyname.split(\" \"), normalizeKeyName);\n      for (var i = 0; i < keys.length; i++) {\n        var val = (void 0), name = (void 0);\n        if (i == keys.length - 1) {\n          name = keys.join(\" \");\n          val = value;\n        } else {\n          name = keys.slice(0, i + 1).join(\" \");\n          val = \"...\";\n        }\n        var prev = copy[name];\n        if (!prev) { copy[name] = val; }\n        else if (prev != val) { throw new Error(\"Inconsistent bindings for \" + name) }\n      }\n      delete keymap[keyname];\n    } }\n    for (var prop in copy) { keymap[prop] = copy[prop]; }\n    return keymap\n  }\n\n  function lookupKey(key, map$$1, handle, context) {\n    map$$1 = getKeyMap(map$$1);\n    var found = map$$1.call ? map$$1.call(key, context) : map$$1[key];\n    if (found === false) { return \"nothing\" }\n    if (found === \"...\") { return \"multi\" }\n    if (found != null && handle(found)) { return \"handled\" }\n\n    if (map$$1.fallthrough) {\n      if (Object.prototype.toString.call(map$$1.fallthrough) != \"[object Array]\")\n        { return lookupKey(key, map$$1.fallthrough, handle, context) }\n      for (var i = 0; i < map$$1.fallthrough.length; i++) {\n        var result = lookupKey(key, map$$1.fallthrough[i], handle, context);\n        if (result) { return result }\n      }\n    }\n  }\n\n  // Modifier key presses don't count as 'real' key presses for the\n  // purpose of keymap fallthrough.\n  function isModifierKey(value) {\n    var name = typeof value == \"string\" ? value : keyNames[value.keyCode];\n    return name == \"Ctrl\" || name == \"Alt\" || name == \"Shift\" || name == \"Mod\"\n  }\n\n  function addModifierNames(name, event, noShift) {\n    var base = name;\n    if (event.altKey && base != \"Alt\") { name = \"Alt-\" + name; }\n    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != \"Ctrl\") { name = \"Ctrl-\" + name; }\n    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != \"Cmd\") { name = \"Cmd-\" + name; }\n    if (!noShift && event.shiftKey && base != \"Shift\") { name = \"Shift-\" + name; }\n    return name\n  }\n\n  // Look up the name of a key as indicated by an event object.\n  function keyName(event, noShift) {\n    if (presto && event.keyCode == 34 && event[\"char\"]) { return false }\n    var name = keyNames[event.keyCode];\n    if (name == null || event.altGraphKey) { return false }\n    // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,\n    // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)\n    if (event.keyCode == 3 && event.code) { name = event.code; }\n    return addModifierNames(name, event, noShift)\n  }\n\n  function getKeyMap(val) {\n    return typeof val == \"string\" ? keyMap[val] : val\n  }\n\n  // Helper for deleting text near the selection(s), used to implement\n  // backspace, delete, and similar functionality.\n  function deleteNearSelection(cm, compute) {\n    var ranges = cm.doc.sel.ranges, kill = [];\n    // Build up a set of ranges to kill first, merging overlapping\n    // ranges.\n    for (var i = 0; i < ranges.length; i++) {\n      var toKill = compute(ranges[i]);\n      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {\n        var replaced = kill.pop();\n        if (cmp(replaced.from, toKill.from) < 0) {\n          toKill.from = replaced.from;\n          break\n        }\n      }\n      kill.push(toKill);\n    }\n    // Next, remove those actual ranges.\n    runInOp(cm, function () {\n      for (var i = kill.length - 1; i >= 0; i--)\n        { replaceRange(cm.doc, \"\", kill[i].from, kill[i].to, \"+delete\"); }\n      ensureCursorVisible(cm);\n    });\n  }\n\n  function moveCharLogically(line, ch, dir) {\n    var target = skipExtendingChars(line.text, ch + dir, dir);\n    return target < 0 || target > line.text.length ? null : target\n  }\n\n  function moveLogically(line, start, dir) {\n    var ch = moveCharLogically(line, start.ch, dir);\n    return ch == null ? null : new Pos(start.line, ch, dir < 0 ? \"after\" : \"before\")\n  }\n\n  function endOfLine(visually, cm, lineObj, lineNo, dir) {\n    if (visually) {\n      var order = getOrder(lineObj, cm.doc.direction);\n      if (order) {\n        var part = dir < 0 ? lst(order) : order[0];\n        var moveInStorageOrder = (dir < 0) == (part.level == 1);\n        var sticky = moveInStorageOrder ? \"after\" : \"before\";\n        var ch;\n        // With a wrapped rtl chunk (possibly spanning multiple bidi parts),\n        // it could be that the last bidi part is not on the last visual line,\n        // since visual lines contain content order-consecutive chunks.\n        // Thus, in rtl, we are looking for the first (content-order) character\n        // in the rtl chunk that is on the last line (that is, the same line\n        // as the last (content-order) character).\n        if (part.level > 0 || cm.doc.direction == \"rtl\") {\n          var prep = prepareMeasureForLine(cm, lineObj);\n          ch = dir < 0 ? lineObj.text.length - 1 : 0;\n          var targetTop = measureCharPrepared(cm, prep, ch).top;\n          ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);\n          if (sticky == \"before\") { ch = moveCharLogically(lineObj, ch, 1); }\n        } else { ch = dir < 0 ? part.to : part.from; }\n        return new Pos(lineNo, ch, sticky)\n      }\n    }\n    return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? \"before\" : \"after\")\n  }\n\n  function moveVisually(cm, line, start, dir) {\n    var bidi = getOrder(line, cm.doc.direction);\n    if (!bidi) { return moveLogically(line, start, dir) }\n    if (start.ch >= line.text.length) {\n      start.ch = line.text.length;\n      start.sticky = \"before\";\n    } else if (start.ch <= 0) {\n      start.ch = 0;\n      start.sticky = \"after\";\n    }\n    var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];\n    if (cm.doc.direction == \"ltr\" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {\n      // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,\n      // nothing interesting happens.\n      return moveLogically(line, start, dir)\n    }\n\n    var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };\n    var prep;\n    var getWrappedLineExtent = function (ch) {\n      if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }\n      prep = prep || prepareMeasureForLine(cm, line);\n      return wrappedLineExtentChar(cm, line, prep, ch)\n    };\n    var wrappedLineExtent = getWrappedLineExtent(start.sticky == \"before\" ? mv(start, -1) : start.ch);\n\n    if (cm.doc.direction == \"rtl\" || part.level == 1) {\n      var moveInStorageOrder = (part.level == 1) == (dir < 0);\n      var ch = mv(start, moveInStorageOrder ? 1 : -1);\n      if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {\n        // Case 2: We move within an rtl part or in an rtl editor on the same visual line\n        var sticky = moveInStorageOrder ? \"before\" : \"after\";\n        return new Pos(start.line, ch, sticky)\n      }\n    }\n\n    // Case 3: Could not move within this bidi part in this visual line, so leave\n    // the current bidi part\n\n    var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {\n      var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder\n        ? new Pos(start.line, mv(ch, 1), \"before\")\n        : new Pos(start.line, ch, \"after\"); };\n\n      for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {\n        var part = bidi[partPos];\n        var moveInStorageOrder = (dir > 0) == (part.level != 1);\n        var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);\n        if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }\n        ch = moveInStorageOrder ? part.from : mv(part.to, -1);\n        if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }\n      }\n    };\n\n    // Case 3a: Look for other bidi parts on the same visual line\n    var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);\n    if (res) { return res }\n\n    // Case 3b: Look for other bidi parts on the next visual line\n    var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);\n    if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {\n      res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));\n      if (res) { return res }\n    }\n\n    // Case 4: Nowhere to move\n    return null\n  }\n\n  // Commands are parameter-less actions that can be performed on an\n  // editor, mostly used for keybindings.\n  var commands = {\n    selectAll: selectAll,\n    singleSelection: function (cm) { return cm.setSelection(cm.getCursor(\"anchor\"), cm.getCursor(\"head\"), sel_dontScroll); },\n    killLine: function (cm) { return deleteNearSelection(cm, function (range) {\n      if (range.empty()) {\n        var len = getLine(cm.doc, range.head.line).text.length;\n        if (range.head.ch == len && range.head.line < cm.lastLine())\n          { return {from: range.head, to: Pos(range.head.line + 1, 0)} }\n        else\n          { return {from: range.head, to: Pos(range.head.line, len)} }\n      } else {\n        return {from: range.from(), to: range.to()}\n      }\n    }); },\n    deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n      from: Pos(range.from().line, 0),\n      to: clipPos(cm.doc, Pos(range.to().line + 1, 0))\n    }); }); },\n    delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n      from: Pos(range.from().line, 0), to: range.from()\n    }); }); },\n    delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {\n      var top = cm.charCoords(range.head, \"div\").top + 5;\n      var leftPos = cm.coordsChar({left: 0, top: top}, \"div\");\n      return {from: leftPos, to: range.from()}\n    }); },\n    delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {\n      var top = cm.charCoords(range.head, \"div\").top + 5;\n      var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\");\n      return {from: range.from(), to: rightPos }\n    }); },\n    undo: function (cm) { return cm.undo(); },\n    redo: function (cm) { return cm.redo(); },\n    undoSelection: function (cm) { return cm.undoSelection(); },\n    redoSelection: function (cm) { return cm.redoSelection(); },\n    goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },\n    goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },\n    goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },\n      {origin: \"+move\", bias: 1}\n    ); },\n    goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },\n      {origin: \"+move\", bias: 1}\n    ); },\n    goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },\n      {origin: \"+move\", bias: -1}\n    ); },\n    goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\")\n    }, sel_move); },\n    goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      return cm.coordsChar({left: 0, top: top}, \"div\")\n    }, sel_move); },\n    goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      var pos = cm.coordsChar({left: 0, top: top}, \"div\");\n      if (pos.ch < cm.getLine(pos.line).search(/\\S/)) { return lineStartSmart(cm, range.head) }\n      return pos\n    }, sel_move); },\n    goLineUp: function (cm) { return cm.moveV(-1, \"line\"); },\n    goLineDown: function (cm) { return cm.moveV(1, \"line\"); },\n    goPageUp: function (cm) { return cm.moveV(-1, \"page\"); },\n    goPageDown: function (cm) { return cm.moveV(1, \"page\"); },\n    goCharLeft: function (cm) { return cm.moveH(-1, \"char\"); },\n    goCharRight: function (cm) { return cm.moveH(1, \"char\"); },\n    goColumnLeft: function (cm) { return cm.moveH(-1, \"column\"); },\n    goColumnRight: function (cm) { return cm.moveH(1, \"column\"); },\n    goWordLeft: function (cm) { return cm.moveH(-1, \"word\"); },\n    goGroupRight: function (cm) { return cm.moveH(1, \"group\"); },\n    goGroupLeft: function (cm) { return cm.moveH(-1, \"group\"); },\n    goWordRight: function (cm) { return cm.moveH(1, \"word\"); },\n    delCharBefore: function (cm) { return cm.deleteH(-1, \"char\"); },\n    delCharAfter: function (cm) { return cm.deleteH(1, \"char\"); },\n    delWordBefore: function (cm) { return cm.deleteH(-1, \"word\"); },\n    delWordAfter: function (cm) { return cm.deleteH(1, \"word\"); },\n    delGroupBefore: function (cm) { return cm.deleteH(-1, \"group\"); },\n    delGroupAfter: function (cm) { return cm.deleteH(1, \"group\"); },\n    indentAuto: function (cm) { return cm.indentSelection(\"smart\"); },\n    indentMore: function (cm) { return cm.indentSelection(\"add\"); },\n    indentLess: function (cm) { return cm.indentSelection(\"subtract\"); },\n    insertTab: function (cm) { return cm.replaceSelection(\"\\t\"); },\n    insertSoftTab: function (cm) {\n      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;\n      for (var i = 0; i < ranges.length; i++) {\n        var pos = ranges[i].from();\n        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);\n        spaces.push(spaceStr(tabSize - col % tabSize));\n      }\n      cm.replaceSelections(spaces);\n    },\n    defaultTab: function (cm) {\n      if (cm.somethingSelected()) { cm.indentSelection(\"add\"); }\n      else { cm.execCommand(\"insertTab\"); }\n    },\n    // Swap the two chars left and right of each selection's head.\n    // Move cursor behind the two swapped characters afterwards.\n    //\n    // Doesn't consider line feeds a character.\n    // Doesn't scan more than one line above to find a character.\n    // Doesn't do anything on an empty line.\n    // Doesn't do anything with non-empty selections.\n    transposeChars: function (cm) { return runInOp(cm, function () {\n      var ranges = cm.listSelections(), newSel = [];\n      for (var i = 0; i < ranges.length; i++) {\n        if (!ranges[i].empty()) { continue }\n        var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;\n        if (line) {\n          if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }\n          if (cur.ch > 0) {\n            cur = new Pos(cur.line, cur.ch + 1);\n            cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),\n                            Pos(cur.line, cur.ch - 2), cur, \"+transpose\");\n          } else if (cur.line > cm.doc.first) {\n            var prev = getLine(cm.doc, cur.line - 1).text;\n            if (prev) {\n              cur = new Pos(cur.line, 1);\n              cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +\n                              prev.charAt(prev.length - 1),\n                              Pos(cur.line - 1, prev.length - 1), cur, \"+transpose\");\n            }\n          }\n        }\n        newSel.push(new Range(cur, cur));\n      }\n      cm.setSelections(newSel);\n    }); },\n    newlineAndIndent: function (cm) { return runInOp(cm, function () {\n      var sels = cm.listSelections();\n      for (var i = sels.length - 1; i >= 0; i--)\n        { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, \"+input\"); }\n      sels = cm.listSelections();\n      for (var i$1 = 0; i$1 < sels.length; i$1++)\n        { cm.indentLine(sels[i$1].from().line, null, true); }\n      ensureCursorVisible(cm);\n    }); },\n    openLine: function (cm) { return cm.replaceSelection(\"\\n\", \"start\"); },\n    toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }\n  };\n\n\n  function lineStart(cm, lineN) {\n    var line = getLine(cm.doc, lineN);\n    var visual = visualLine(line);\n    if (visual != line) { lineN = lineNo(visual); }\n    return endOfLine(true, cm, visual, lineN, 1)\n  }\n  function lineEnd(cm, lineN) {\n    var line = getLine(cm.doc, lineN);\n    var visual = visualLineEnd(line);\n    if (visual != line) { lineN = lineNo(visual); }\n    return endOfLine(true, cm, line, lineN, -1)\n  }\n  function lineStartSmart(cm, pos) {\n    var start = lineStart(cm, pos.line);\n    var line = getLine(cm.doc, start.line);\n    var order = getOrder(line, cm.doc.direction);\n    if (!order || order[0].level == 0) {\n      var firstNonWS = Math.max(0, line.text.search(/\\S/));\n      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;\n      return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)\n    }\n    return start\n  }\n\n  // Run a handler that was bound to a key.\n  function doHandleBinding(cm, bound, dropShift) {\n    if (typeof bound == \"string\") {\n      bound = commands[bound];\n      if (!bound) { return false }\n    }\n    // Ensure previous input has been read, so that the handler sees a\n    // consistent view of the document\n    cm.display.input.ensurePolled();\n    var prevShift = cm.display.shift, done = false;\n    try {\n      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }\n      if (dropShift) { cm.display.shift = false; }\n      done = bound(cm) != Pass;\n    } finally {\n      cm.display.shift = prevShift;\n      cm.state.suppressEdits = false;\n    }\n    return done\n  }\n\n  function lookupKeyForEditor(cm, name, handle) {\n    for (var i = 0; i < cm.state.keyMaps.length; i++) {\n      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);\n      if (result) { return result }\n    }\n    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))\n      || lookupKey(name, cm.options.keyMap, handle, cm)\n  }\n\n  // Note that, despite the name, this function is also used to check\n  // for bound mouse clicks.\n\n  var stopSeq = new Delayed;\n\n  function dispatchKey(cm, name, e, handle) {\n    var seq = cm.state.keySeq;\n    if (seq) {\n      if (isModifierKey(name)) { return \"handled\" }\n      if (/\\'$/.test(name))\n        { cm.state.keySeq = null; }\n      else\n        { stopSeq.set(50, function () {\n          if (cm.state.keySeq == seq) {\n            cm.state.keySeq = null;\n            cm.display.input.reset();\n          }\n        }); }\n      if (dispatchKeyInner(cm, seq + \" \" + name, e, handle)) { return true }\n    }\n    return dispatchKeyInner(cm, name, e, handle)\n  }\n\n  function dispatchKeyInner(cm, name, e, handle) {\n    var result = lookupKeyForEditor(cm, name, handle);\n\n    if (result == \"multi\")\n      { cm.state.keySeq = name; }\n    if (result == \"handled\")\n      { signalLater(cm, \"keyHandled\", cm, name, e); }\n\n    if (result == \"handled\" || result == \"multi\") {\n      e_preventDefault(e);\n      restartBlink(cm);\n    }\n\n    return !!result\n  }\n\n  // Handle a key from the keydown event.\n  function handleKeyBinding(cm, e) {\n    var name = keyName(e, true);\n    if (!name) { return false }\n\n    if (e.shiftKey && !cm.state.keySeq) {\n      // First try to resolve full name (including 'Shift-'). Failing\n      // that, see if there is a cursor-motion command (starting with\n      // 'go') bound to the keyname without 'Shift-'.\n      return dispatchKey(cm, \"Shift-\" + name, e, function (b) { return doHandleBinding(cm, b, true); })\n          || dispatchKey(cm, name, e, function (b) {\n               if (typeof b == \"string\" ? /^go[A-Z]/.test(b) : b.motion)\n                 { return doHandleBinding(cm, b) }\n             })\n    } else {\n      return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })\n    }\n  }\n\n  // Handle a key from the keypress event\n  function handleCharBinding(cm, e, ch) {\n    return dispatchKey(cm, \"'\" + ch + \"'\", e, function (b) { return doHandleBinding(cm, b, true); })\n  }\n\n  var lastStoppedKey = null;\n  function onKeyDown(e) {\n    var cm = this;\n    cm.curOp.focus = activeElt();\n    if (signalDOMEvent(cm, e)) { return }\n    // IE does strange things with escape.\n    if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }\n    var code = e.keyCode;\n    cm.display.shift = code == 16 || e.shiftKey;\n    var handled = handleKeyBinding(cm, e);\n    if (presto) {\n      lastStoppedKey = handled ? code : null;\n      // Opera has no cut event... we try to at least catch the key combo\n      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))\n        { cm.replaceSelection(\"\", null, \"cut\"); }\n    }\n\n    // Turn mouse into crosshair when Alt is held on Mac.\n    if (code == 18 && !/\\bCodeMirror-crosshair\\b/.test(cm.display.lineDiv.className))\n      { showCrossHair(cm); }\n  }\n\n  function showCrossHair(cm) {\n    var lineDiv = cm.display.lineDiv;\n    addClass(lineDiv, \"CodeMirror-crosshair\");\n\n    function up(e) {\n      if (e.keyCode == 18 || !e.altKey) {\n        rmClass(lineDiv, \"CodeMirror-crosshair\");\n        off(document, \"keyup\", up);\n        off(document, \"mouseover\", up);\n      }\n    }\n    on(document, \"keyup\", up);\n    on(document, \"mouseover\", up);\n  }\n\n  function onKeyUp(e) {\n    if (e.keyCode == 16) { this.doc.sel.shift = false; }\n    signalDOMEvent(this, e);\n  }\n\n  function onKeyPress(e) {\n    var cm = this;\n    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }\n    var keyCode = e.keyCode, charCode = e.charCode;\n    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}\n    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }\n    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);\n    // Some browsers fire keypress events for backspace\n    if (ch == \"\\x08\") { return }\n    if (handleCharBinding(cm, e, ch)) { return }\n    cm.display.input.onKeyPress(e);\n  }\n\n  var DOUBLECLICK_DELAY = 400;\n\n  var PastClick = function(time, pos, button) {\n    this.time = time;\n    this.pos = pos;\n    this.button = button;\n  };\n\n  PastClick.prototype.compare = function (time, pos, button) {\n    return this.time + DOUBLECLICK_DELAY > time &&\n      cmp(pos, this.pos) == 0 && button == this.button\n  };\n\n  var lastClick, lastDoubleClick;\n  function clickRepeat(pos, button) {\n    var now = +new Date;\n    if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {\n      lastClick = lastDoubleClick = null;\n      return \"triple\"\n    } else if (lastClick && lastClick.compare(now, pos, button)) {\n      lastDoubleClick = new PastClick(now, pos, button);\n      lastClick = null;\n      return \"double\"\n    } else {\n      lastClick = new PastClick(now, pos, button);\n      lastDoubleClick = null;\n      return \"single\"\n    }\n  }\n\n  // A mouse down can be a single click, double click, triple click,\n  // start of selection drag, start of text drag, new cursor\n  // (ctrl-click), rectangle drag (alt-drag), or xwin\n  // middle-click-paste. Or it might be a click on something we should\n  // not interfere with, such as a scrollbar or widget.\n  function onMouseDown(e) {\n    var cm = this, display = cm.display;\n    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }\n    display.input.ensurePolled();\n    display.shift = e.shiftKey;\n\n    if (eventInWidget(display, e)) {\n      if (!webkit) {\n        // Briefly turn off draggability, to allow widgets to do\n        // normal dragging things.\n        display.scroller.draggable = false;\n        setTimeout(function () { return display.scroller.draggable = true; }, 100);\n      }\n      return\n    }\n    if (clickInGutter(cm, e)) { return }\n    var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : \"single\";\n    window.focus();\n\n    // #3261: make sure, that we're not starting a second selection\n    if (button == 1 && cm.state.selectingText)\n      { cm.state.selectingText(e); }\n\n    if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }\n\n    if (button == 1) {\n      if (pos) { leftButtonDown(cm, pos, repeat, e); }\n      else if (e_target(e) == display.scroller) { e_preventDefault(e); }\n    } else if (button == 2) {\n      if (pos) { extendSelection(cm.doc, pos); }\n      setTimeout(function () { return display.input.focus(); }, 20);\n    } else if (button == 3) {\n      if (captureRightClick) { cm.display.input.onContextMenu(e); }\n      else { delayBlurEvent(cm); }\n    }\n  }\n\n  function handleMappedButton(cm, button, pos, repeat, event) {\n    var name = \"Click\";\n    if (repeat == \"double\") { name = \"Double\" + name; }\n    else if (repeat == \"triple\") { name = \"Triple\" + name; }\n    name = (button == 1 ? \"Left\" : button == 2 ? \"Middle\" : \"Right\") + name;\n\n    return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {\n      if (typeof bound == \"string\") { bound = commands[bound]; }\n      if (!bound) { return false }\n      var done = false;\n      try {\n        if (cm.isReadOnly()) { cm.state.suppressEdits = true; }\n        done = bound(cm, pos) != Pass;\n      } finally {\n        cm.state.suppressEdits = false;\n      }\n      return done\n    })\n  }\n\n  function configureMouse(cm, repeat, event) {\n    var option = cm.getOption(\"configureMouse\");\n    var value = option ? option(cm, repeat, event) : {};\n    if (value.unit == null) {\n      var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;\n      value.unit = rect ? \"rectangle\" : repeat == \"single\" ? \"char\" : repeat == \"double\" ? \"word\" : \"line\";\n    }\n    if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }\n    if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }\n    if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }\n    return value\n  }\n\n  function leftButtonDown(cm, pos, repeat, event) {\n    if (ie) { setTimeout(bind(ensureFocus, cm), 0); }\n    else { cm.curOp.focus = activeElt(); }\n\n    var behavior = configureMouse(cm, repeat, event);\n\n    var sel = cm.doc.sel, contained;\n    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&\n        repeat == \"single\" && (contained = sel.contains(pos)) > -1 &&\n        (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&\n        (cmp(contained.to(), pos) > 0 || pos.xRel < 0))\n      { leftButtonStartDrag(cm, event, pos, behavior); }\n    else\n      { leftButtonSelect(cm, event, pos, behavior); }\n  }\n\n  // Start a text drag. When it ends, see if any dragging actually\n  // happen, and treat as a click if it didn't.\n  function leftButtonStartDrag(cm, event, pos, behavior) {\n    var display = cm.display, moved = false;\n    var dragEnd = operation(cm, function (e) {\n      if (webkit) { display.scroller.draggable = false; }\n      cm.state.draggingText = false;\n      off(display.wrapper.ownerDocument, \"mouseup\", dragEnd);\n      off(display.wrapper.ownerDocument, \"mousemove\", mouseMove);\n      off(display.scroller, \"dragstart\", dragStart);\n      off(display.scroller, \"drop\", dragEnd);\n      if (!moved) {\n        e_preventDefault(e);\n        if (!behavior.addNew)\n          { extendSelection(cm.doc, pos, null, null, behavior.extend); }\n        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)\n        if (webkit || ie && ie_version == 9)\n          { setTimeout(function () {display.wrapper.ownerDocument.body.focus(); display.input.focus();}, 20); }\n        else\n          { display.input.focus(); }\n      }\n    });\n    var mouseMove = function(e2) {\n      moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;\n    };\n    var dragStart = function () { return moved = true; };\n    // Let the drag handler handle this.\n    if (webkit) { display.scroller.draggable = true; }\n    cm.state.draggingText = dragEnd;\n    dragEnd.copy = !behavior.moveOnDrag;\n    // IE's approach to draggable\n    if (display.scroller.dragDrop) { display.scroller.dragDrop(); }\n    on(display.wrapper.ownerDocument, \"mouseup\", dragEnd);\n    on(display.wrapper.ownerDocument, \"mousemove\", mouseMove);\n    on(display.scroller, \"dragstart\", dragStart);\n    on(display.scroller, \"drop\", dragEnd);\n\n    delayBlurEvent(cm);\n    setTimeout(function () { return display.input.focus(); }, 20);\n  }\n\n  function rangeForUnit(cm, pos, unit) {\n    if (unit == \"char\") { return new Range(pos, pos) }\n    if (unit == \"word\") { return cm.findWordAt(pos) }\n    if (unit == \"line\") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }\n    var result = unit(cm, pos);\n    return new Range(result.from, result.to)\n  }\n\n  // Normal selection, as opposed to text dragging.\n  function leftButtonSelect(cm, event, start, behavior) {\n    var display = cm.display, doc = cm.doc;\n    e_preventDefault(event);\n\n    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;\n    if (behavior.addNew && !behavior.extend) {\n      ourIndex = doc.sel.contains(start);\n      if (ourIndex > -1)\n        { ourRange = ranges[ourIndex]; }\n      else\n        { ourRange = new Range(start, start); }\n    } else {\n      ourRange = doc.sel.primary();\n      ourIndex = doc.sel.primIndex;\n    }\n\n    if (behavior.unit == \"rectangle\") {\n      if (!behavior.addNew) { ourRange = new Range(start, start); }\n      start = posFromMouse(cm, event, true, true);\n      ourIndex = -1;\n    } else {\n      var range$$1 = rangeForUnit(cm, start, behavior.unit);\n      if (behavior.extend)\n        { ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend); }\n      else\n        { ourRange = range$$1; }\n    }\n\n    if (!behavior.addNew) {\n      ourIndex = 0;\n      setSelection(doc, new Selection([ourRange], 0), sel_mouse);\n      startSel = doc.sel;\n    } else if (ourIndex == -1) {\n      ourIndex = ranges.length;\n      setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),\n                   {scroll: false, origin: \"*mouse\"});\n    } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == \"char\" && !behavior.extend) {\n      setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),\n                   {scroll: false, origin: \"*mouse\"});\n      startSel = doc.sel;\n    } else {\n      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);\n    }\n\n    var lastPos = start;\n    function extendTo(pos) {\n      if (cmp(lastPos, pos) == 0) { return }\n      lastPos = pos;\n\n      if (behavior.unit == \"rectangle\") {\n        var ranges = [], tabSize = cm.options.tabSize;\n        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);\n        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);\n        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);\n        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));\n             line <= end; line++) {\n          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);\n          if (left == right)\n            { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }\n          else if (text.length > leftPos)\n            { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }\n        }\n        if (!ranges.length) { ranges.push(new Range(start, start)); }\n        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),\n                     {origin: \"*mouse\", scroll: false});\n        cm.scrollIntoView(pos);\n      } else {\n        var oldRange = ourRange;\n        var range$$1 = rangeForUnit(cm, pos, behavior.unit);\n        var anchor = oldRange.anchor, head;\n        if (cmp(range$$1.anchor, anchor) > 0) {\n          head = range$$1.head;\n          anchor = minPos(oldRange.from(), range$$1.anchor);\n        } else {\n          head = range$$1.anchor;\n          anchor = maxPos(oldRange.to(), range$$1.head);\n        }\n        var ranges$1 = startSel.ranges.slice(0);\n        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));\n        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);\n      }\n    }\n\n    var editorSize = display.wrapper.getBoundingClientRect();\n    // Used to ensure timeout re-tries don't fire when another extend\n    // happened in the meantime (clearTimeout isn't reliable -- at\n    // least on Chrome, the timeouts still happen even when cleared,\n    // if the clear happens after their scheduled firing time).\n    var counter = 0;\n\n    function extend(e) {\n      var curCount = ++counter;\n      var cur = posFromMouse(cm, e, true, behavior.unit == \"rectangle\");\n      if (!cur) { return }\n      if (cmp(cur, lastPos) != 0) {\n        cm.curOp.focus = activeElt();\n        extendTo(cur);\n        var visible = visibleLines(display, doc);\n        if (cur.line >= visible.to || cur.line < visible.from)\n          { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }\n      } else {\n        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;\n        if (outside) { setTimeout(operation(cm, function () {\n          if (counter != curCount) { return }\n          display.scroller.scrollTop += outside;\n          extend(e);\n        }), 50); }\n      }\n    }\n\n    function done(e) {\n      cm.state.selectingText = false;\n      counter = Infinity;\n      // If e is null or undefined we interpret this as someone trying\n      // to explicitly cancel the selection rather than the user\n      // letting go of the mouse button.\n      if (e) {\n        e_preventDefault(e);\n        display.input.focus();\n      }\n      off(display.wrapper.ownerDocument, \"mousemove\", move);\n      off(display.wrapper.ownerDocument, \"mouseup\", up);\n      doc.history.lastSelOrigin = null;\n    }\n\n    var move = operation(cm, function (e) {\n      if (e.buttons === 0 || !e_button(e)) { done(e); }\n      else { extend(e); }\n    });\n    var up = operation(cm, done);\n    cm.state.selectingText = up;\n    on(display.wrapper.ownerDocument, \"mousemove\", move);\n    on(display.wrapper.ownerDocument, \"mouseup\", up);\n  }\n\n  // Used when mouse-selecting to adjust the anchor to the proper side\n  // of a bidi jump depending on the visual position of the head.\n  function bidiSimplify(cm, range$$1) {\n    var anchor = range$$1.anchor;\n    var head = range$$1.head;\n    var anchorLine = getLine(cm.doc, anchor.line);\n    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range$$1 }\n    var order = getOrder(anchorLine);\n    if (!order) { return range$$1 }\n    var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];\n    if (part.from != anchor.ch && part.to != anchor.ch) { return range$$1 }\n    var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);\n    if (boundary == 0 || boundary == order.length) { return range$$1 }\n\n    // Compute the relative visual position of the head compared to the\n    // anchor (<0 is to the left, >0 to the right)\n    var leftSide;\n    if (head.line != anchor.line) {\n      leftSide = (head.line - anchor.line) * (cm.doc.direction == \"ltr\" ? 1 : -1) > 0;\n    } else {\n      var headIndex = getBidiPartAt(order, head.ch, head.sticky);\n      var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);\n      if (headIndex == boundary - 1 || headIndex == boundary)\n        { leftSide = dir < 0; }\n      else\n        { leftSide = dir > 0; }\n    }\n\n    var usePart = order[boundary + (leftSide ? -1 : 0)];\n    var from = leftSide == (usePart.level == 1);\n    var ch = from ? usePart.from : usePart.to, sticky = from ? \"after\" : \"before\";\n    return anchor.ch == ch && anchor.sticky == sticky ? range$$1 : new Range(new Pos(anchor.line, ch, sticky), head)\n  }\n\n\n  // Determines whether an event happened in the gutter, and fires the\n  // handlers for the corresponding event.\n  function gutterEvent(cm, e, type, prevent) {\n    var mX, mY;\n    if (e.touches) {\n      mX = e.touches[0].clientX;\n      mY = e.touches[0].clientY;\n    } else {\n      try { mX = e.clientX; mY = e.clientY; }\n      catch(e) { return false }\n    }\n    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }\n    if (prevent) { e_preventDefault(e); }\n\n    var display = cm.display;\n    var lineBox = display.lineDiv.getBoundingClientRect();\n\n    if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }\n    mY -= lineBox.top - display.viewOffset;\n\n    for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {\n      var g = display.gutters.childNodes[i];\n      if (g && g.getBoundingClientRect().right >= mX) {\n        var line = lineAtHeight(cm.doc, mY);\n        var gutter = cm.display.gutterSpecs[i];\n        signal(cm, type, cm, line, gutter.className, e);\n        return e_defaultPrevented(e)\n      }\n    }\n  }\n\n  function clickInGutter(cm, e) {\n    return gutterEvent(cm, e, \"gutterClick\", true)\n  }\n\n  // CONTEXT MENU HANDLING\n\n  // To make the context menu work, we need to briefly unhide the\n  // textarea (making it as unobtrusive as possible) to let the\n  // right-click take effect on it.\n  function onContextMenu(cm, e) {\n    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }\n    if (signalDOMEvent(cm, e, \"contextmenu\")) { return }\n    if (!captureRightClick) { cm.display.input.onContextMenu(e); }\n  }\n\n  function contextMenuInGutter(cm, e) {\n    if (!hasHandler(cm, \"gutterContextMenu\")) { return false }\n    return gutterEvent(cm, e, \"gutterContextMenu\", false)\n  }\n\n  function themeChanged(cm) {\n    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\\s*cm-s-\\S+/g, \"\") +\n      cm.options.theme.replace(/(^|\\s)\\s*/g, \" cm-s-\");\n    clearCaches(cm);\n  }\n\n  var Init = {toString: function(){return \"CodeMirror.Init\"}};\n\n  var defaults = {};\n  var optionHandlers = {};\n\n  function defineOptions(CodeMirror) {\n    var optionHandlers = CodeMirror.optionHandlers;\n\n    function option(name, deflt, handle, notOnInit) {\n      CodeMirror.defaults[name] = deflt;\n      if (handle) { optionHandlers[name] =\n        notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }\n    }\n\n    CodeMirror.defineOption = option;\n\n    // Passed to option handlers when there is no old value.\n    CodeMirror.Init = Init;\n\n    // These two are, on init, called from the constructor because they\n    // have to be initialized before the editor can start at all.\n    option(\"value\", \"\", function (cm, val) { return cm.setValue(val); }, true);\n    option(\"mode\", null, function (cm, val) {\n      cm.doc.modeOption = val;\n      loadMode(cm);\n    }, true);\n\n    option(\"indentUnit\", 2, loadMode, true);\n    option(\"indentWithTabs\", false);\n    option(\"smartIndent\", true);\n    option(\"tabSize\", 4, function (cm) {\n      resetModeState(cm);\n      clearCaches(cm);\n      regChange(cm);\n    }, true);\n\n    option(\"lineSeparator\", null, function (cm, val) {\n      cm.doc.lineSep = val;\n      if (!val) { return }\n      var newBreaks = [], lineNo = cm.doc.first;\n      cm.doc.iter(function (line) {\n        for (var pos = 0;;) {\n          var found = line.text.indexOf(val, pos);\n          if (found == -1) { break }\n          pos = found + val.length;\n          newBreaks.push(Pos(lineNo, found));\n        }\n        lineNo++;\n      });\n      for (var i = newBreaks.length - 1; i >= 0; i--)\n        { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }\n    });\n    option(\"specialChars\", /[\\u0000-\\u001f\\u007f-\\u009f\\u00ad\\u061c\\u200b-\\u200f\\u2028\\u2029\\ufeff\\ufff9-\\ufffc]/g, function (cm, val, old) {\n      cm.state.specialChars = new RegExp(val.source + (val.test(\"\\t\") ? \"\" : \"|\\t\"), \"g\");\n      if (old != Init) { cm.refresh(); }\n    });\n    option(\"specialCharPlaceholder\", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);\n    option(\"electricChars\", true);\n    option(\"inputStyle\", mobile ? \"contenteditable\" : \"textarea\", function () {\n      throw new Error(\"inputStyle can not (yet) be changed in a running editor\") // FIXME\n    }, true);\n    option(\"spellcheck\", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);\n    option(\"autocorrect\", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);\n    option(\"autocapitalize\", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);\n    option(\"rtlMoveVisually\", !windows);\n    option(\"wholeLineUpdateBefore\", true);\n\n    option(\"theme\", \"default\", function (cm) {\n      themeChanged(cm);\n      updateGutters(cm);\n    }, true);\n    option(\"keyMap\", \"default\", function (cm, val, old) {\n      var next = getKeyMap(val);\n      var prev = old != Init && getKeyMap(old);\n      if (prev && prev.detach) { prev.detach(cm, next); }\n      if (next.attach) { next.attach(cm, prev || null); }\n    });\n    option(\"extraKeys\", null);\n    option(\"configureMouse\", null);\n\n    option(\"lineWrapping\", false, wrappingChanged, true);\n    option(\"gutters\", [], function (cm, val) {\n      cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);\n      updateGutters(cm);\n    }, true);\n    option(\"fixedGutter\", true, function (cm, val) {\n      cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + \"px\" : \"0\";\n      cm.refresh();\n    }, true);\n    option(\"coverGutterNextToScrollbar\", false, function (cm) { return updateScrollbars(cm); }, true);\n    option(\"scrollbarStyle\", \"native\", function (cm) {\n      initScrollbars(cm);\n      updateScrollbars(cm);\n      cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);\n      cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);\n    }, true);\n    option(\"lineNumbers\", false, function (cm, val) {\n      cm.display.gutterSpecs = getGutters(cm.options.gutters, val);\n      updateGutters(cm);\n    }, true);\n    option(\"firstLineNumber\", 1, updateGutters, true);\n    option(\"lineNumberFormatter\", function (integer) { return integer; }, updateGutters, true);\n    option(\"showCursorWhenSelecting\", false, updateSelection, true);\n\n    option(\"resetSelectionOnContextMenu\", true);\n    option(\"lineWiseCopyCut\", true);\n    option(\"pasteLinesPerSelection\", true);\n    option(\"selectionsMayTouch\", false);\n\n    option(\"readOnly\", false, function (cm, val) {\n      if (val == \"nocursor\") {\n        onBlur(cm);\n        cm.display.input.blur();\n      }\n      cm.display.input.readOnlyChanged(val);\n    });\n    option(\"disableInput\", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);\n    option(\"dragDrop\", true, dragDropChanged);\n    option(\"allowDropFileTypes\", null);\n\n    option(\"cursorBlinkRate\", 530);\n    option(\"cursorScrollMargin\", 0);\n    option(\"cursorHeight\", 1, updateSelection, true);\n    option(\"singleCursorHeightPerLine\", true, updateSelection, true);\n    option(\"workTime\", 100);\n    option(\"workDelay\", 100);\n    option(\"flattenSpans\", true, resetModeState, true);\n    option(\"addModeClass\", false, resetModeState, true);\n    option(\"pollInterval\", 100);\n    option(\"undoDepth\", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });\n    option(\"historyEventDelay\", 1250);\n    option(\"viewportMargin\", 10, function (cm) { return cm.refresh(); }, true);\n    option(\"maxHighlightLength\", 10000, resetModeState, true);\n    option(\"moveInputWithCursor\", true, function (cm, val) {\n      if (!val) { cm.display.input.resetPosition(); }\n    });\n\n    option(\"tabindex\", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || \"\"; });\n    option(\"autofocus\", null);\n    option(\"direction\", \"ltr\", function (cm, val) { return cm.doc.setDirection(val); }, true);\n    option(\"phrases\", null);\n  }\n\n  function dragDropChanged(cm, value, old) {\n    var wasOn = old && old != Init;\n    if (!value != !wasOn) {\n      var funcs = cm.display.dragFunctions;\n      var toggle = value ? on : off;\n      toggle(cm.display.scroller, \"dragstart\", funcs.start);\n      toggle(cm.display.scroller, \"dragenter\", funcs.enter);\n      toggle(cm.display.scroller, \"dragover\", funcs.over);\n      toggle(cm.display.scroller, \"dragleave\", funcs.leave);\n      toggle(cm.display.scroller, \"drop\", funcs.drop);\n    }\n  }\n\n  function wrappingChanged(cm) {\n    if (cm.options.lineWrapping) {\n      addClass(cm.display.wrapper, \"CodeMirror-wrap\");\n      cm.display.sizer.style.minWidth = \"\";\n      cm.display.sizerWidth = null;\n    } else {\n      rmClass(cm.display.wrapper, \"CodeMirror-wrap\");\n      findMaxLine(cm);\n    }\n    estimateLineHeights(cm);\n    regChange(cm);\n    clearCaches(cm);\n    setTimeout(function () { return updateScrollbars(cm); }, 100);\n  }\n\n  // A CodeMirror instance represents an editor. This is the object\n  // that user code is usually dealing with.\n\n  function CodeMirror(place, options) {\n    var this$1 = this;\n\n    if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }\n\n    this.options = options = options ? copyObj(options) : {};\n    // Determine effective options based on given values and defaults.\n    copyObj(defaults, options, false);\n\n    var doc = options.value;\n    if (typeof doc == \"string\") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }\n    else if (options.mode) { doc.modeOption = options.mode; }\n    this.doc = doc;\n\n    var input = new CodeMirror.inputStyles[options.inputStyle](this);\n    var display = this.display = new Display(place, doc, input, options);\n    display.wrapper.CodeMirror = this;\n    themeChanged(this);\n    if (options.lineWrapping)\n      { this.display.wrapper.className += \" CodeMirror-wrap\"; }\n    initScrollbars(this);\n\n    this.state = {\n      keyMaps: [],  // stores maps added by addKeyMap\n      overlays: [], // highlighting overlays, as added by addOverlay\n      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info\n      overwrite: false,\n      delayingBlurEvent: false,\n      focused: false,\n      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode\n      pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll\n      selectingText: false,\n      draggingText: false,\n      highlight: new Delayed(), // stores highlight worker timeout\n      keySeq: null,  // Unfinished key sequence\n      specialChars: null\n    };\n\n    if (options.autofocus && !mobile) { display.input.focus(); }\n\n    // Override magic textarea content restore that IE sometimes does\n    // on our hidden textarea on reload\n    if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }\n\n    registerEventHandlers(this);\n    ensureGlobalHandlers();\n\n    startOperation(this);\n    this.curOp.forceUpdate = true;\n    attachDoc(this, doc);\n\n    if ((options.autofocus && !mobile) || this.hasFocus())\n      { setTimeout(bind(onFocus, this), 20); }\n    else\n      { onBlur(this); }\n\n    for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))\n      { optionHandlers[opt](this$1, options[opt], Init); } }\n    maybeUpdateLineNumberWidth(this);\n    if (options.finishInit) { options.finishInit(this); }\n    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1); }\n    endOperation(this);\n    // Suppress optimizelegibility in Webkit, since it breaks text\n    // measuring on line wrapping boundaries.\n    if (webkit && options.lineWrapping &&\n        getComputedStyle(display.lineDiv).textRendering == \"optimizelegibility\")\n      { display.lineDiv.style.textRendering = \"auto\"; }\n  }\n\n  // The default configuration options.\n  CodeMirror.defaults = defaults;\n  // Functions to run when options are changed.\n  CodeMirror.optionHandlers = optionHandlers;\n\n  // Attach the necessary event handlers when initializing the editor\n  function registerEventHandlers(cm) {\n    var d = cm.display;\n    on(d.scroller, \"mousedown\", operation(cm, onMouseDown));\n    // Older IE's will not fire a second mousedown for a double click\n    if (ie && ie_version < 11)\n      { on(d.scroller, \"dblclick\", operation(cm, function (e) {\n        if (signalDOMEvent(cm, e)) { return }\n        var pos = posFromMouse(cm, e);\n        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }\n        e_preventDefault(e);\n        var word = cm.findWordAt(pos);\n        extendSelection(cm.doc, word.anchor, word.head);\n      })); }\n    else\n      { on(d.scroller, \"dblclick\", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }\n    // Some browsers fire contextmenu *after* opening the menu, at\n    // which point we can't mess with it anymore. Context menu is\n    // handled in onMouseDown for these browsers.\n    on(d.scroller, \"contextmenu\", function (e) { return onContextMenu(cm, e); });\n\n    // Used to suppress mouse event handling when a touch happens\n    var touchFinished, prevTouch = {end: 0};\n    function finishTouch() {\n      if (d.activeTouch) {\n        touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);\n        prevTouch = d.activeTouch;\n        prevTouch.end = +new Date;\n      }\n    }\n    function isMouseLikeTouchEvent(e) {\n      if (e.touches.length != 1) { return false }\n      var touch = e.touches[0];\n      return touch.radiusX <= 1 && touch.radiusY <= 1\n    }\n    function farAway(touch, other) {\n      if (other.left == null) { return true }\n      var dx = other.left - touch.left, dy = other.top - touch.top;\n      return dx * dx + dy * dy > 20 * 20\n    }\n    on(d.scroller, \"touchstart\", function (e) {\n      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {\n        d.input.ensurePolled();\n        clearTimeout(touchFinished);\n        var now = +new Date;\n        d.activeTouch = {start: now, moved: false,\n                         prev: now - prevTouch.end <= 300 ? prevTouch : null};\n        if (e.touches.length == 1) {\n          d.activeTouch.left = e.touches[0].pageX;\n          d.activeTouch.top = e.touches[0].pageY;\n        }\n      }\n    });\n    on(d.scroller, \"touchmove\", function () {\n      if (d.activeTouch) { d.activeTouch.moved = true; }\n    });\n    on(d.scroller, \"touchend\", function (e) {\n      var touch = d.activeTouch;\n      if (touch && !eventInWidget(d, e) && touch.left != null &&\n          !touch.moved && new Date - touch.start < 300) {\n        var pos = cm.coordsChar(d.activeTouch, \"page\"), range;\n        if (!touch.prev || farAway(touch, touch.prev)) // Single tap\n          { range = new Range(pos, pos); }\n        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap\n          { range = cm.findWordAt(pos); }\n        else // Triple tap\n          { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }\n        cm.setSelection(range.anchor, range.head);\n        cm.focus();\n        e_preventDefault(e);\n      }\n      finishTouch();\n    });\n    on(d.scroller, \"touchcancel\", finishTouch);\n\n    // Sync scrolling between fake scrollbars and real scrollable\n    // area, ensure viewport is updated when scrolling.\n    on(d.scroller, \"scroll\", function () {\n      if (d.scroller.clientHeight) {\n        updateScrollTop(cm, d.scroller.scrollTop);\n        setScrollLeft(cm, d.scroller.scrollLeft, true);\n        signal(cm, \"scroll\", cm);\n      }\n    });\n\n    // Listen to wheel events in order to try and update the viewport on time.\n    on(d.scroller, \"mousewheel\", function (e) { return onScrollWheel(cm, e); });\n    on(d.scroller, \"DOMMouseScroll\", function (e) { return onScrollWheel(cm, e); });\n\n    // Prevent wrapper from ever scrolling\n    on(d.wrapper, \"scroll\", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });\n\n    d.dragFunctions = {\n      enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},\n      over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},\n      start: function (e) { return onDragStart(cm, e); },\n      drop: operation(cm, onDrop),\n      leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}\n    };\n\n    var inp = d.input.getField();\n    on(inp, \"keyup\", function (e) { return onKeyUp.call(cm, e); });\n    on(inp, \"keydown\", operation(cm, onKeyDown));\n    on(inp, \"keypress\", operation(cm, onKeyPress));\n    on(inp, \"focus\", function (e) { return onFocus(cm, e); });\n    on(inp, \"blur\", function (e) { return onBlur(cm, e); });\n  }\n\n  var initHooks = [];\n  CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };\n\n  // Indent the given line. The how parameter can be \"smart\",\n  // \"add\"/null, \"subtract\", or \"prev\". When aggressive is false\n  // (typically set to true for forced single-line indents), empty\n  // lines are not indented, and places where the mode returns Pass\n  // are left alone.\n  function indentLine(cm, n, how, aggressive) {\n    var doc = cm.doc, state;\n    if (how == null) { how = \"add\"; }\n    if (how == \"smart\") {\n      // Fall back to \"prev\" when the mode doesn't have an indentation\n      // method.\n      if (!doc.mode.indent) { how = \"prev\"; }\n      else { state = getContextBefore(cm, n).state; }\n    }\n\n    var tabSize = cm.options.tabSize;\n    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);\n    if (line.stateAfter) { line.stateAfter = null; }\n    var curSpaceString = line.text.match(/^\\s*/)[0], indentation;\n    if (!aggressive && !/\\S/.test(line.text)) {\n      indentation = 0;\n      how = \"not\";\n    } else if (how == \"smart\") {\n      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);\n      if (indentation == Pass || indentation > 150) {\n        if (!aggressive) { return }\n        how = \"prev\";\n      }\n    }\n    if (how == \"prev\") {\n      if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }\n      else { indentation = 0; }\n    } else if (how == \"add\") {\n      indentation = curSpace + cm.options.indentUnit;\n    } else if (how == \"subtract\") {\n      indentation = curSpace - cm.options.indentUnit;\n    } else if (typeof how == \"number\") {\n      indentation = curSpace + how;\n    }\n    indentation = Math.max(0, indentation);\n\n    var indentString = \"\", pos = 0;\n    if (cm.options.indentWithTabs)\n      { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += \"\\t\";} }\n    if (pos < indentation) { indentString += spaceStr(indentation - pos); }\n\n    if (indentString != curSpaceString) {\n      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), \"+input\");\n      line.stateAfter = null;\n      return true\n    } else {\n      // Ensure that, if the cursor was in the whitespace at the start\n      // of the line, it is moved to the end of that space.\n      for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {\n        var range = doc.sel.ranges[i$1];\n        if (range.head.line == n && range.head.ch < curSpaceString.length) {\n          var pos$1 = Pos(n, curSpaceString.length);\n          replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));\n          break\n        }\n      }\n    }\n  }\n\n  // This will be set to a {lineWise: bool, text: [string]} object, so\n  // that, when pasting, we know what kind of selections the copied\n  // text was made out of.\n  var lastCopied = null;\n\n  function setLastCopied(newLastCopied) {\n    lastCopied = newLastCopied;\n  }\n\n  function applyTextInput(cm, inserted, deleted, sel, origin) {\n    var doc = cm.doc;\n    cm.display.shift = false;\n    if (!sel) { sel = doc.sel; }\n\n    var recent = +new Date - 200;\n    var paste = origin == \"paste\" || cm.state.pasteIncoming > recent;\n    var textLines = splitLinesAuto(inserted), multiPaste = null;\n    // When pasting N lines into N selections, insert one line per selection\n    if (paste && sel.ranges.length > 1) {\n      if (lastCopied && lastCopied.text.join(\"\\n\") == inserted) {\n        if (sel.ranges.length % lastCopied.text.length == 0) {\n          multiPaste = [];\n          for (var i = 0; i < lastCopied.text.length; i++)\n            { multiPaste.push(doc.splitLines(lastCopied.text[i])); }\n        }\n      } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {\n        multiPaste = map(textLines, function (l) { return [l]; });\n      }\n    }\n\n    var updateInput = cm.curOp.updateInput;\n    // Normal behavior is to insert the new text into every selection\n    for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {\n      var range$$1 = sel.ranges[i$1];\n      var from = range$$1.from(), to = range$$1.to();\n      if (range$$1.empty()) {\n        if (deleted && deleted > 0) // Handle deletion\n          { from = Pos(from.line, from.ch - deleted); }\n        else if (cm.state.overwrite && !paste) // Handle overwrite\n          { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }\n        else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join(\"\\n\") == inserted)\n          { from = to = Pos(from.line, 0); }\n      }\n      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,\n                         origin: origin || (paste ? \"paste\" : cm.state.cutIncoming > recent ? \"cut\" : \"+input\")};\n      makeChange(cm.doc, changeEvent);\n      signalLater(cm, \"inputRead\", cm, changeEvent);\n    }\n    if (inserted && !paste)\n      { triggerElectric(cm, inserted); }\n\n    ensureCursorVisible(cm);\n    if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }\n    cm.curOp.typing = true;\n    cm.state.pasteIncoming = cm.state.cutIncoming = -1;\n  }\n\n  function handlePaste(e, cm) {\n    var pasted = e.clipboardData && e.clipboardData.getData(\"Text\");\n    if (pasted) {\n      e.preventDefault();\n      if (!cm.isReadOnly() && !cm.options.disableInput)\n        { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, \"paste\"); }); }\n      return true\n    }\n  }\n\n  function triggerElectric(cm, inserted) {\n    // When an 'electric' character is inserted, immediately trigger a reindent\n    if (!cm.options.electricChars || !cm.options.smartIndent) { return }\n    var sel = cm.doc.sel;\n\n    for (var i = sel.ranges.length - 1; i >= 0; i--) {\n      var range$$1 = sel.ranges[i];\n      if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue }\n      var mode = cm.getModeAt(range$$1.head);\n      var indented = false;\n      if (mode.electricChars) {\n        for (var j = 0; j < mode.electricChars.length; j++)\n          { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {\n            indented = indentLine(cm, range$$1.head.line, \"smart\");\n            break\n          } }\n      } else if (mode.electricInput) {\n        if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch)))\n          { indented = indentLine(cm, range$$1.head.line, \"smart\"); }\n      }\n      if (indented) { signalLater(cm, \"electricInput\", cm, range$$1.head.line); }\n    }\n  }\n\n  function copyableRanges(cm) {\n    var text = [], ranges = [];\n    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {\n      var line = cm.doc.sel.ranges[i].head.line;\n      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};\n      ranges.push(lineRange);\n      text.push(cm.getRange(lineRange.anchor, lineRange.head));\n    }\n    return {text: text, ranges: ranges}\n  }\n\n  function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {\n    field.setAttribute(\"autocorrect\", autocorrect ? \"\" : \"off\");\n    field.setAttribute(\"autocapitalize\", autocapitalize ? \"\" : \"off\");\n    field.setAttribute(\"spellcheck\", !!spellcheck);\n  }\n\n  function hiddenTextarea() {\n    var te = elt(\"textarea\", null, null, \"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none\");\n    var div = elt(\"div\", [te], null, \"overflow: hidden; position: relative; width: 3px; height: 0px;\");\n    // The textarea is kept positioned near the cursor to prevent the\n    // fact that it'll be scrolled into view on input from scrolling\n    // our fake cursor out of view. On webkit, when wrap=off, paste is\n    // very slow. So make the area wide instead.\n    if (webkit) { te.style.width = \"1000px\"; }\n    else { te.setAttribute(\"wrap\", \"off\"); }\n    // If border: 0; -- iOS fails to open keyboard (issue #1287)\n    if (ios) { te.style.border = \"1px solid black\"; }\n    disableBrowserMagic(te);\n    return div\n  }\n\n  // The publicly visible API. Note that methodOp(f) means\n  // 'wrap f in an operation, performed on its `this` parameter'.\n\n  // This is not the complete set of editor methods. Most of the\n  // methods defined on the Doc type are also injected into\n  // CodeMirror.prototype, for backwards compatibility and\n  // convenience.\n\n  function addEditorMethods(CodeMirror) {\n    var optionHandlers = CodeMirror.optionHandlers;\n\n    var helpers = CodeMirror.helpers = {};\n\n    CodeMirror.prototype = {\n      constructor: CodeMirror,\n      focus: function(){window.focus(); this.display.input.focus();},\n\n      setOption: function(option, value) {\n        var options = this.options, old = options[option];\n        if (options[option] == value && option != \"mode\") { return }\n        options[option] = value;\n        if (optionHandlers.hasOwnProperty(option))\n          { operation(this, optionHandlers[option])(this, value, old); }\n        signal(this, \"optionChange\", this, option);\n      },\n\n      getOption: function(option) {return this.options[option]},\n      getDoc: function() {return this.doc},\n\n      addKeyMap: function(map$$1, bottom) {\n        this.state.keyMaps[bottom ? \"push\" : \"unshift\"](getKeyMap(map$$1));\n      },\n      removeKeyMap: function(map$$1) {\n        var maps = this.state.keyMaps;\n        for (var i = 0; i < maps.length; ++i)\n          { if (maps[i] == map$$1 || maps[i].name == map$$1) {\n            maps.splice(i, 1);\n            return true\n          } }\n      },\n\n      addOverlay: methodOp(function(spec, options) {\n        var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);\n        if (mode.startState) { throw new Error(\"Overlays may not be stateful.\") }\n        insertSorted(this.state.overlays,\n                     {mode: mode, modeSpec: spec, opaque: options && options.opaque,\n                      priority: (options && options.priority) || 0},\n                     function (overlay) { return overlay.priority; });\n        this.state.modeGen++;\n        regChange(this);\n      }),\n      removeOverlay: methodOp(function(spec) {\n        var this$1 = this;\n\n        var overlays = this.state.overlays;\n        for (var i = 0; i < overlays.length; ++i) {\n          var cur = overlays[i].modeSpec;\n          if (cur == spec || typeof spec == \"string\" && cur.name == spec) {\n            overlays.splice(i, 1);\n            this$1.state.modeGen++;\n            regChange(this$1);\n            return\n          }\n        }\n      }),\n\n      indentLine: methodOp(function(n, dir, aggressive) {\n        if (typeof dir != \"string\" && typeof dir != \"number\") {\n          if (dir == null) { dir = this.options.smartIndent ? \"smart\" : \"prev\"; }\n          else { dir = dir ? \"add\" : \"subtract\"; }\n        }\n        if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }\n      }),\n      indentSelection: methodOp(function(how) {\n        var this$1 = this;\n\n        var ranges = this.doc.sel.ranges, end = -1;\n        for (var i = 0; i < ranges.length; i++) {\n          var range$$1 = ranges[i];\n          if (!range$$1.empty()) {\n            var from = range$$1.from(), to = range$$1.to();\n            var start = Math.max(end, from.line);\n            end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;\n            for (var j = start; j < end; ++j)\n              { indentLine(this$1, j, how); }\n            var newRanges = this$1.doc.sel.ranges;\n            if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)\n              { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }\n          } else if (range$$1.head.line > end) {\n            indentLine(this$1, range$$1.head.line, how, true);\n            end = range$$1.head.line;\n            if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1); }\n          }\n        }\n      }),\n\n      // Fetch the parser token for a given character. Useful for hacks\n      // that want to inspect the mode state (say, for completion).\n      getTokenAt: function(pos, precise) {\n        return takeToken(this, pos, precise)\n      },\n\n      getLineTokens: function(line, precise) {\n        return takeToken(this, Pos(line), precise, true)\n      },\n\n      getTokenTypeAt: function(pos) {\n        pos = clipPos(this.doc, pos);\n        var styles = getLineStyles(this, getLine(this.doc, pos.line));\n        var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;\n        var type;\n        if (ch == 0) { type = styles[2]; }\n        else { for (;;) {\n          var mid = (before + after) >> 1;\n          if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }\n          else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }\n          else { type = styles[mid * 2 + 2]; break }\n        } }\n        var cut = type ? type.indexOf(\"overlay \") : -1;\n        return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)\n      },\n\n      getModeAt: function(pos) {\n        var mode = this.doc.mode;\n        if (!mode.innerMode) { return mode }\n        return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode\n      },\n\n      getHelper: function(pos, type) {\n        return this.getHelpers(pos, type)[0]\n      },\n\n      getHelpers: function(pos, type) {\n        var this$1 = this;\n\n        var found = [];\n        if (!helpers.hasOwnProperty(type)) { return found }\n        var help = helpers[type], mode = this.getModeAt(pos);\n        if (typeof mode[type] == \"string\") {\n          if (help[mode[type]]) { found.push(help[mode[type]]); }\n        } else if (mode[type]) {\n          for (var i = 0; i < mode[type].length; i++) {\n            var val = help[mode[type][i]];\n            if (val) { found.push(val); }\n          }\n        } else if (mode.helperType && help[mode.helperType]) {\n          found.push(help[mode.helperType]);\n        } else if (help[mode.name]) {\n          found.push(help[mode.name]);\n        }\n        for (var i$1 = 0; i$1 < help._global.length; i$1++) {\n          var cur = help._global[i$1];\n          if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)\n            { found.push(cur.val); }\n        }\n        return found\n      },\n\n      getStateAfter: function(line, precise) {\n        var doc = this.doc;\n        line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);\n        return getContextBefore(this, line + 1, precise).state\n      },\n\n      cursorCoords: function(start, mode) {\n        var pos, range$$1 = this.doc.sel.primary();\n        if (start == null) { pos = range$$1.head; }\n        else if (typeof start == \"object\") { pos = clipPos(this.doc, start); }\n        else { pos = start ? range$$1.from() : range$$1.to(); }\n        return cursorCoords(this, pos, mode || \"page\")\n      },\n\n      charCoords: function(pos, mode) {\n        return charCoords(this, clipPos(this.doc, pos), mode || \"page\")\n      },\n\n      coordsChar: function(coords, mode) {\n        coords = fromCoordSystem(this, coords, mode || \"page\");\n        return coordsChar(this, coords.left, coords.top)\n      },\n\n      lineAtHeight: function(height, mode) {\n        height = fromCoordSystem(this, {top: height, left: 0}, mode || \"page\").top;\n        return lineAtHeight(this.doc, height + this.display.viewOffset)\n      },\n      heightAtLine: function(line, mode, includeWidgets) {\n        var end = false, lineObj;\n        if (typeof line == \"number\") {\n          var last = this.doc.first + this.doc.size - 1;\n          if (line < this.doc.first) { line = this.doc.first; }\n          else if (line > last) { line = last; end = true; }\n          lineObj = getLine(this.doc, line);\n        } else {\n          lineObj = line;\n        }\n        return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || \"page\", includeWidgets || end).top +\n          (end ? this.doc.height - heightAtLine(lineObj) : 0)\n      },\n\n      defaultTextHeight: function() { return textHeight(this.display) },\n      defaultCharWidth: function() { return charWidth(this.display) },\n\n      getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},\n\n      addWidget: function(pos, node, scroll, vert, horiz) {\n        var display = this.display;\n        pos = cursorCoords(this, clipPos(this.doc, pos));\n        var top = pos.bottom, left = pos.left;\n        node.style.position = \"absolute\";\n        node.setAttribute(\"cm-ignore-events\", \"true\");\n        this.display.input.setUneditable(node);\n        display.sizer.appendChild(node);\n        if (vert == \"over\") {\n          top = pos.top;\n        } else if (vert == \"above\" || vert == \"near\") {\n          var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),\n          hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);\n          // Default to positioning above (if specified and possible); otherwise default to positioning below\n          if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)\n            { top = pos.top - node.offsetHeight; }\n          else if (pos.bottom + node.offsetHeight <= vspace)\n            { top = pos.bottom; }\n          if (left + node.offsetWidth > hspace)\n            { left = hspace - node.offsetWidth; }\n        }\n        node.style.top = top + \"px\";\n        node.style.left = node.style.right = \"\";\n        if (horiz == \"right\") {\n          left = display.sizer.clientWidth - node.offsetWidth;\n          node.style.right = \"0px\";\n        } else {\n          if (horiz == \"left\") { left = 0; }\n          else if (horiz == \"middle\") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }\n          node.style.left = left + \"px\";\n        }\n        if (scroll)\n          { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }\n      },\n\n      triggerOnKeyDown: methodOp(onKeyDown),\n      triggerOnKeyPress: methodOp(onKeyPress),\n      triggerOnKeyUp: onKeyUp,\n      triggerOnMouseDown: methodOp(onMouseDown),\n\n      execCommand: function(cmd) {\n        if (commands.hasOwnProperty(cmd))\n          { return commands[cmd].call(null, this) }\n      },\n\n      triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),\n\n      findPosH: function(from, amount, unit, visually) {\n        var this$1 = this;\n\n        var dir = 1;\n        if (amount < 0) { dir = -1; amount = -amount; }\n        var cur = clipPos(this.doc, from);\n        for (var i = 0; i < amount; ++i) {\n          cur = findPosH(this$1.doc, cur, dir, unit, visually);\n          if (cur.hitSide) { break }\n        }\n        return cur\n      },\n\n      moveH: methodOp(function(dir, unit) {\n        var this$1 = this;\n\n        this.extendSelectionsBy(function (range$$1) {\n          if (this$1.display.shift || this$1.doc.extend || range$$1.empty())\n            { return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) }\n          else\n            { return dir < 0 ? range$$1.from() : range$$1.to() }\n        }, sel_move);\n      }),\n\n      deleteH: methodOp(function(dir, unit) {\n        var sel = this.doc.sel, doc = this.doc;\n        if (sel.somethingSelected())\n          { doc.replaceSelection(\"\", null, \"+delete\"); }\n        else\n          { deleteNearSelection(this, function (range$$1) {\n            var other = findPosH(doc, range$$1.head, dir, unit, false);\n            return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other}\n          }); }\n      }),\n\n      findPosV: function(from, amount, unit, goalColumn) {\n        var this$1 = this;\n\n        var dir = 1, x = goalColumn;\n        if (amount < 0) { dir = -1; amount = -amount; }\n        var cur = clipPos(this.doc, from);\n        for (var i = 0; i < amount; ++i) {\n          var coords = cursorCoords(this$1, cur, \"div\");\n          if (x == null) { x = coords.left; }\n          else { coords.left = x; }\n          cur = findPosV(this$1, coords, dir, unit);\n          if (cur.hitSide) { break }\n        }\n        return cur\n      },\n\n      moveV: methodOp(function(dir, unit) {\n        var this$1 = this;\n\n        var doc = this.doc, goals = [];\n        var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();\n        doc.extendSelectionsBy(function (range$$1) {\n          if (collapse)\n            { return dir < 0 ? range$$1.from() : range$$1.to() }\n          var headPos = cursorCoords(this$1, range$$1.head, \"div\");\n          if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; }\n          goals.push(headPos.left);\n          var pos = findPosV(this$1, headPos, dir, unit);\n          if (unit == \"page\" && range$$1 == doc.sel.primary())\n            { addToScrollTop(this$1, charCoords(this$1, pos, \"div\").top - headPos.top); }\n          return pos\n        }, sel_move);\n        if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)\n          { doc.sel.ranges[i].goalColumn = goals[i]; } }\n      }),\n\n      // Find the word at the given position (as returned by coordsChar).\n      findWordAt: function(pos) {\n        var doc = this.doc, line = getLine(doc, pos.line).text;\n        var start = pos.ch, end = pos.ch;\n        if (line) {\n          var helper = this.getHelper(pos, \"wordChars\");\n          if ((pos.sticky == \"before\" || end == line.length) && start) { --start; } else { ++end; }\n          var startChar = line.charAt(start);\n          var check = isWordChar(startChar, helper)\n            ? function (ch) { return isWordChar(ch, helper); }\n            : /\\s/.test(startChar) ? function (ch) { return /\\s/.test(ch); }\n            : function (ch) { return (!/\\s/.test(ch) && !isWordChar(ch)); };\n          while (start > 0 && check(line.charAt(start - 1))) { --start; }\n          while (end < line.length && check(line.charAt(end))) { ++end; }\n        }\n        return new Range(Pos(pos.line, start), Pos(pos.line, end))\n      },\n\n      toggleOverwrite: function(value) {\n        if (value != null && value == this.state.overwrite) { return }\n        if (this.state.overwrite = !this.state.overwrite)\n          { addClass(this.display.cursorDiv, \"CodeMirror-overwrite\"); }\n        else\n          { rmClass(this.display.cursorDiv, \"CodeMirror-overwrite\"); }\n\n        signal(this, \"overwriteToggle\", this, this.state.overwrite);\n      },\n      hasFocus: function() { return this.display.input.getField() == activeElt() },\n      isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },\n\n      scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),\n      getScrollInfo: function() {\n        var scroller = this.display.scroller;\n        return {left: scroller.scrollLeft, top: scroller.scrollTop,\n                height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,\n                width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,\n                clientHeight: displayHeight(this), clientWidth: displayWidth(this)}\n      },\n\n      scrollIntoView: methodOp(function(range$$1, margin) {\n        if (range$$1 == null) {\n          range$$1 = {from: this.doc.sel.primary().head, to: null};\n          if (margin == null) { margin = this.options.cursorScrollMargin; }\n        } else if (typeof range$$1 == \"number\") {\n          range$$1 = {from: Pos(range$$1, 0), to: null};\n        } else if (range$$1.from == null) {\n          range$$1 = {from: range$$1, to: null};\n        }\n        if (!range$$1.to) { range$$1.to = range$$1.from; }\n        range$$1.margin = margin || 0;\n\n        if (range$$1.from.line != null) {\n          scrollToRange(this, range$$1);\n        } else {\n          scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin);\n        }\n      }),\n\n      setSize: methodOp(function(width, height) {\n        var this$1 = this;\n\n        var interpret = function (val) { return typeof val == \"number\" || /^\\d+$/.test(String(val)) ? val + \"px\" : val; };\n        if (width != null) { this.display.wrapper.style.width = interpret(width); }\n        if (height != null) { this.display.wrapper.style.height = interpret(height); }\n        if (this.options.lineWrapping) { clearLineMeasurementCache(this); }\n        var lineNo$$1 = this.display.viewFrom;\n        this.doc.iter(lineNo$$1, this.display.viewTo, function (line) {\n          if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)\n            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, \"widget\"); break } } }\n          ++lineNo$$1;\n        });\n        this.curOp.forceUpdate = true;\n        signal(this, \"refresh\", this);\n      }),\n\n      operation: function(f){return runInOp(this, f)},\n      startOperation: function(){return startOperation(this)},\n      endOperation: function(){return endOperation(this)},\n\n      refresh: methodOp(function() {\n        var oldHeight = this.display.cachedTextHeight;\n        regChange(this);\n        this.curOp.forceUpdate = true;\n        clearCaches(this);\n        scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);\n        updateGutterSpace(this.display);\n        if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)\n          { estimateLineHeights(this); }\n        signal(this, \"refresh\", this);\n      }),\n\n      swapDoc: methodOp(function(doc) {\n        var old = this.doc;\n        old.cm = null;\n        // Cancel the current text selection if any (#5821)\n        if (this.state.selectingText) { this.state.selectingText(); }\n        attachDoc(this, doc);\n        clearCaches(this);\n        this.display.input.reset();\n        scrollToCoords(this, doc.scrollLeft, doc.scrollTop);\n        this.curOp.forceScroll = true;\n        signalLater(this, \"swapDoc\", this, old);\n        return old\n      }),\n\n      phrase: function(phraseText) {\n        var phrases = this.options.phrases;\n        return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText\n      },\n\n      getInputField: function(){return this.display.input.getField()},\n      getWrapperElement: function(){return this.display.wrapper},\n      getScrollerElement: function(){return this.display.scroller},\n      getGutterElement: function(){return this.display.gutters}\n    };\n    eventMixin(CodeMirror);\n\n    CodeMirror.registerHelper = function(type, name, value) {\n      if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }\n      helpers[type][name] = value;\n    };\n    CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {\n      CodeMirror.registerHelper(type, name, value);\n      helpers[type]._global.push({pred: predicate, val: value});\n    };\n  }\n\n  // Used for horizontal relative motion. Dir is -1 or 1 (left or\n  // right), unit can be \"char\", \"column\" (like char, but doesn't\n  // cross line boundaries), \"word\" (across next word), or \"group\" (to\n  // the start of next group of word or non-word-non-whitespace\n  // chars). The visually param controls whether, in right-to-left\n  // text, direction 1 means to move towards the next index in the\n  // string, or towards the character to the right of the current\n  // position. The resulting position will have a hitSide=true\n  // property if it reached the end of the document.\n  function findPosH(doc, pos, dir, unit, visually) {\n    var oldPos = pos;\n    var origDir = dir;\n    var lineObj = getLine(doc, pos.line);\n    function findNextLine() {\n      var l = pos.line + dir;\n      if (l < doc.first || l >= doc.first + doc.size) { return false }\n      pos = new Pos(l, pos.ch, pos.sticky);\n      return lineObj = getLine(doc, l)\n    }\n    function moveOnce(boundToLine) {\n      var next;\n      if (visually) {\n        next = moveVisually(doc.cm, lineObj, pos, dir);\n      } else {\n        next = moveLogically(lineObj, pos, dir);\n      }\n      if (next == null) {\n        if (!boundToLine && findNextLine())\n          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); }\n        else\n          { return false }\n      } else {\n        pos = next;\n      }\n      return true\n    }\n\n    if (unit == \"char\") {\n      moveOnce();\n    } else if (unit == \"column\") {\n      moveOnce(true);\n    } else if (unit == \"word\" || unit == \"group\") {\n      var sawType = null, group = unit == \"group\";\n      var helper = doc.cm && doc.cm.getHelper(pos, \"wordChars\");\n      for (var first = true;; first = false) {\n        if (dir < 0 && !moveOnce(!first)) { break }\n        var cur = lineObj.text.charAt(pos.ch) || \"\\n\";\n        var type = isWordChar(cur, helper) ? \"w\"\n          : group && cur == \"\\n\" ? \"n\"\n          : !group || /\\s/.test(cur) ? null\n          : \"p\";\n        if (group && !first && !type) { type = \"s\"; }\n        if (sawType && sawType != type) {\n          if (dir < 0) {dir = 1; moveOnce(); pos.sticky = \"after\";}\n          break\n        }\n\n        if (type) { sawType = type; }\n        if (dir > 0 && !moveOnce(!first)) { break }\n      }\n    }\n    var result = skipAtomic(doc, pos, oldPos, origDir, true);\n    if (equalCursorPos(oldPos, result)) { result.hitSide = true; }\n    return result\n  }\n\n  // For relative vertical movement. Dir may be -1 or 1. Unit can be\n  // \"page\" or \"line\". The resulting position will have a hitSide=true\n  // property if it reached the end of the document.\n  function findPosV(cm, pos, dir, unit) {\n    var doc = cm.doc, x = pos.left, y;\n    if (unit == \"page\") {\n      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);\n      var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);\n      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;\n\n    } else if (unit == \"line\") {\n      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;\n    }\n    var target;\n    for (;;) {\n      target = coordsChar(cm, x, y);\n      if (!target.outside) { break }\n      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }\n      y += dir * 5;\n    }\n    return target\n  }\n\n  // CONTENTEDITABLE INPUT STYLE\n\n  var ContentEditableInput = function(cm) {\n    this.cm = cm;\n    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;\n    this.polling = new Delayed();\n    this.composing = null;\n    this.gracePeriod = false;\n    this.readDOMTimeout = null;\n  };\n\n  ContentEditableInput.prototype.init = function (display) {\n      var this$1 = this;\n\n    var input = this, cm = input.cm;\n    var div = input.div = display.lineDiv;\n    disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);\n\n    on(div, \"paste\", function (e) {\n      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n      // IE doesn't fire input events, so we schedule a read for the pasted content in this way\n      if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }\n    });\n\n    on(div, \"compositionstart\", function (e) {\n      this$1.composing = {data: e.data, done: false};\n    });\n    on(div, \"compositionupdate\", function (e) {\n      if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }\n    });\n    on(div, \"compositionend\", function (e) {\n      if (this$1.composing) {\n        if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }\n        this$1.composing.done = true;\n      }\n    });\n\n    on(div, \"touchstart\", function () { return input.forceCompositionEnd(); });\n\n    on(div, \"input\", function () {\n      if (!this$1.composing) { this$1.readFromDOMSoon(); }\n    });\n\n    function onCopyCut(e) {\n      if (signalDOMEvent(cm, e)) { return }\n      if (cm.somethingSelected()) {\n        setLastCopied({lineWise: false, text: cm.getSelections()});\n        if (e.type == \"cut\") { cm.replaceSelection(\"\", null, \"cut\"); }\n      } else if (!cm.options.lineWiseCopyCut) {\n        return\n      } else {\n        var ranges = copyableRanges(cm);\n        setLastCopied({lineWise: true, text: ranges.text});\n        if (e.type == \"cut\") {\n          cm.operation(function () {\n            cm.setSelections(ranges.ranges, 0, sel_dontScroll);\n            cm.replaceSelection(\"\", null, \"cut\");\n          });\n        }\n      }\n      if (e.clipboardData) {\n        e.clipboardData.clearData();\n        var content = lastCopied.text.join(\"\\n\");\n        // iOS exposes the clipboard API, but seems to discard content inserted into it\n        e.clipboardData.setData(\"Text\", content);\n        if (e.clipboardData.getData(\"Text\") == content) {\n          e.preventDefault();\n          return\n        }\n      }\n      // Old-fashioned briefly-focus-a-textarea hack\n      var kludge = hiddenTextarea(), te = kludge.firstChild;\n      cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);\n      te.value = lastCopied.text.join(\"\\n\");\n      var hadFocus = document.activeElement;\n      selectInput(te);\n      setTimeout(function () {\n        cm.display.lineSpace.removeChild(kludge);\n        hadFocus.focus();\n        if (hadFocus == div) { input.showPrimarySelection(); }\n      }, 50);\n    }\n    on(div, \"copy\", onCopyCut);\n    on(div, \"cut\", onCopyCut);\n  };\n\n  ContentEditableInput.prototype.prepareSelection = function () {\n    var result = prepareSelection(this.cm, false);\n    result.focus = this.cm.state.focused;\n    return result\n  };\n\n  ContentEditableInput.prototype.showSelection = function (info, takeFocus) {\n    if (!info || !this.cm.display.view.length) { return }\n    if (info.focus || takeFocus) { this.showPrimarySelection(); }\n    this.showMultipleSelections(info);\n  };\n\n  ContentEditableInput.prototype.getSelection = function () {\n    return this.cm.display.wrapper.ownerDocument.getSelection()\n  };\n\n  ContentEditableInput.prototype.showPrimarySelection = function () {\n    var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();\n    var from = prim.from(), to = prim.to();\n\n    if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {\n      sel.removeAllRanges();\n      return\n    }\n\n    var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\n    var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);\n    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&\n        cmp(minPos(curAnchor, curFocus), from) == 0 &&\n        cmp(maxPos(curAnchor, curFocus), to) == 0)\n      { return }\n\n    var view = cm.display.view;\n    var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||\n        {node: view[0].measure.map[2], offset: 0};\n    var end = to.line < cm.display.viewTo && posToDOM(cm, to);\n    if (!end) {\n      var measure = view[view.length - 1].measure;\n      var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;\n      end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]};\n    }\n\n    if (!start || !end) {\n      sel.removeAllRanges();\n      return\n    }\n\n    var old = sel.rangeCount && sel.getRangeAt(0), rng;\n    try { rng = range(start.node, start.offset, end.offset, end.node); }\n    catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible\n    if (rng) {\n      if (!gecko && cm.state.focused) {\n        sel.collapse(start.node, start.offset);\n        if (!rng.collapsed) {\n          sel.removeAllRanges();\n          sel.addRange(rng);\n        }\n      } else {\n        sel.removeAllRanges();\n        sel.addRange(rng);\n      }\n      if (old && sel.anchorNode == null) { sel.addRange(old); }\n      else if (gecko) { this.startGracePeriod(); }\n    }\n    this.rememberSelection();\n  };\n\n  ContentEditableInput.prototype.startGracePeriod = function () {\n      var this$1 = this;\n\n    clearTimeout(this.gracePeriod);\n    this.gracePeriod = setTimeout(function () {\n      this$1.gracePeriod = false;\n      if (this$1.selectionChanged())\n        { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }\n    }, 20);\n  };\n\n  ContentEditableInput.prototype.showMultipleSelections = function (info) {\n    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);\n    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);\n  };\n\n  ContentEditableInput.prototype.rememberSelection = function () {\n    var sel = this.getSelection();\n    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;\n    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;\n  };\n\n  ContentEditableInput.prototype.selectionInEditor = function () {\n    var sel = this.getSelection();\n    if (!sel.rangeCount) { return false }\n    var node = sel.getRangeAt(0).commonAncestorContainer;\n    return contains(this.div, node)\n  };\n\n  ContentEditableInput.prototype.focus = function () {\n    if (this.cm.options.readOnly != \"nocursor\") {\n      if (!this.selectionInEditor())\n        { this.showSelection(this.prepareSelection(), true); }\n      this.div.focus();\n    }\n  };\n  ContentEditableInput.prototype.blur = function () { this.div.blur(); };\n  ContentEditableInput.prototype.getField = function () { return this.div };\n\n  ContentEditableInput.prototype.supportsTouch = function () { return true };\n\n  ContentEditableInput.prototype.receivedFocus = function () {\n    var input = this;\n    if (this.selectionInEditor())\n      { this.pollSelection(); }\n    else\n      { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }\n\n    function poll() {\n      if (input.cm.state.focused) {\n        input.pollSelection();\n        input.polling.set(input.cm.options.pollInterval, poll);\n      }\n    }\n    this.polling.set(this.cm.options.pollInterval, poll);\n  };\n\n  ContentEditableInput.prototype.selectionChanged = function () {\n    var sel = this.getSelection();\n    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||\n      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset\n  };\n\n  ContentEditableInput.prototype.pollSelection = function () {\n    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }\n    var sel = this.getSelection(), cm = this.cm;\n    // On Android Chrome (version 56, at least), backspacing into an\n    // uneditable block element will put the cursor in that element,\n    // and then, because it's not editable, hide the virtual keyboard.\n    // Because Android doesn't allow us to actually detect backspace\n    // presses in a sane way, this code checks for when that happens\n    // and simulates a backspace press in this case.\n    if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {\n      this.cm.triggerOnKeyDown({type: \"keydown\", keyCode: 8, preventDefault: Math.abs});\n      this.blur();\n      this.focus();\n      return\n    }\n    if (this.composing) { return }\n    this.rememberSelection();\n    var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\n    var head = domToPos(cm, sel.focusNode, sel.focusOffset);\n    if (anchor && head) { runInOp(cm, function () {\n      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);\n      if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }\n    }); }\n  };\n\n  ContentEditableInput.prototype.pollContent = function () {\n    if (this.readDOMTimeout != null) {\n      clearTimeout(this.readDOMTimeout);\n      this.readDOMTimeout = null;\n    }\n\n    var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();\n    var from = sel.from(), to = sel.to();\n    if (from.ch == 0 && from.line > cm.firstLine())\n      { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }\n    if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())\n      { to = Pos(to.line + 1, 0); }\n    if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }\n\n    var fromIndex, fromLine, fromNode;\n    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {\n      fromLine = lineNo(display.view[0].line);\n      fromNode = display.view[0].node;\n    } else {\n      fromLine = lineNo(display.view[fromIndex].line);\n      fromNode = display.view[fromIndex - 1].node.nextSibling;\n    }\n    var toIndex = findViewIndex(cm, to.line);\n    var toLine, toNode;\n    if (toIndex == display.view.length - 1) {\n      toLine = display.viewTo - 1;\n      toNode = display.lineDiv.lastChild;\n    } else {\n      toLine = lineNo(display.view[toIndex + 1].line) - 1;\n      toNode = display.view[toIndex + 1].node.previousSibling;\n    }\n\n    if (!fromNode) { return false }\n    var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));\n    var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));\n    while (newText.length > 1 && oldText.length > 1) {\n      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }\n      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }\n      else { break }\n    }\n\n    var cutFront = 0, cutEnd = 0;\n    var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);\n    while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))\n      { ++cutFront; }\n    var newBot = lst(newText), oldBot = lst(oldText);\n    var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),\n                             oldBot.length - (oldText.length == 1 ? cutFront : 0));\n    while (cutEnd < maxCutEnd &&\n           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))\n      { ++cutEnd; }\n    // Try to move start of change to start of selection if ambiguous\n    if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {\n      while (cutFront && cutFront > from.ch &&\n             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {\n        cutFront--;\n        cutEnd++;\n      }\n    }\n\n    newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\\u200b+/, \"\");\n    newText[0] = newText[0].slice(cutFront).replace(/\\u200b+$/, \"\");\n\n    var chFrom = Pos(fromLine, cutFront);\n    var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);\n    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {\n      replaceRange(cm.doc, newText, chFrom, chTo, \"+input\");\n      return true\n    }\n  };\n\n  ContentEditableInput.prototype.ensurePolled = function () {\n    this.forceCompositionEnd();\n  };\n  ContentEditableInput.prototype.reset = function () {\n    this.forceCompositionEnd();\n  };\n  ContentEditableInput.prototype.forceCompositionEnd = function () {\n    if (!this.composing) { return }\n    clearTimeout(this.readDOMTimeout);\n    this.composing = null;\n    this.updateFromDOM();\n    this.div.blur();\n    this.div.focus();\n  };\n  ContentEditableInput.prototype.readFromDOMSoon = function () {\n      var this$1 = this;\n\n    if (this.readDOMTimeout != null) { return }\n    this.readDOMTimeout = setTimeout(function () {\n      this$1.readDOMTimeout = null;\n      if (this$1.composing) {\n        if (this$1.composing.done) { this$1.composing = null; }\n        else { return }\n      }\n      this$1.updateFromDOM();\n    }, 80);\n  };\n\n  ContentEditableInput.prototype.updateFromDOM = function () {\n      var this$1 = this;\n\n    if (this.cm.isReadOnly() || !this.pollContent())\n      { runInOp(this.cm, function () { return regChange(this$1.cm); }); }\n  };\n\n  ContentEditableInput.prototype.setUneditable = function (node) {\n    node.contentEditable = \"false\";\n  };\n\n  ContentEditableInput.prototype.onKeyPress = function (e) {\n    if (e.charCode == 0 || this.composing) { return }\n    e.preventDefault();\n    if (!this.cm.isReadOnly())\n      { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }\n  };\n\n  ContentEditableInput.prototype.readOnlyChanged = function (val) {\n    this.div.contentEditable = String(val != \"nocursor\");\n  };\n\n  ContentEditableInput.prototype.onContextMenu = function () {};\n  ContentEditableInput.prototype.resetPosition = function () {};\n\n  ContentEditableInput.prototype.needsContentAttribute = true;\n\n  function posToDOM(cm, pos) {\n    var view = findViewForLine(cm, pos.line);\n    if (!view || view.hidden) { return null }\n    var line = getLine(cm.doc, pos.line);\n    var info = mapFromLineView(view, line, pos.line);\n\n    var order = getOrder(line, cm.doc.direction), side = \"left\";\n    if (order) {\n      var partPos = getBidiPartAt(order, pos.ch);\n      side = partPos % 2 ? \"right\" : \"left\";\n    }\n    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);\n    result.offset = result.collapse == \"right\" ? result.end : result.start;\n    return result\n  }\n\n  function isInGutter(node) {\n    for (var scan = node; scan; scan = scan.parentNode)\n      { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }\n    return false\n  }\n\n  function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }\n\n  function domTextBetween(cm, from, to, fromLine, toLine) {\n    var text = \"\", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;\n    function recognizeMarker(id) { return function (marker) { return marker.id == id; } }\n    function close() {\n      if (closing) {\n        text += lineSep;\n        if (extraLinebreak) { text += lineSep; }\n        closing = extraLinebreak = false;\n      }\n    }\n    function addText(str) {\n      if (str) {\n        close();\n        text += str;\n      }\n    }\n    function walk(node) {\n      if (node.nodeType == 1) {\n        var cmText = node.getAttribute(\"cm-text\");\n        if (cmText) {\n          addText(cmText);\n          return\n        }\n        var markerID = node.getAttribute(\"cm-marker\"), range$$1;\n        if (markerID) {\n          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));\n          if (found.length && (range$$1 = found[0].find(0)))\n            { addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); }\n          return\n        }\n        if (node.getAttribute(\"contenteditable\") == \"false\") { return }\n        var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);\n        if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }\n\n        if (isBlock) { close(); }\n        for (var i = 0; i < node.childNodes.length; i++)\n          { walk(node.childNodes[i]); }\n\n        if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }\n        if (isBlock) { closing = true; }\n      } else if (node.nodeType == 3) {\n        addText(node.nodeValue.replace(/\\u200b/g, \"\").replace(/\\u00a0/g, \" \"));\n      }\n    }\n    for (;;) {\n      walk(from);\n      if (from == to) { break }\n      from = from.nextSibling;\n      extraLinebreak = false;\n    }\n    return text\n  }\n\n  function domToPos(cm, node, offset) {\n    var lineNode;\n    if (node == cm.display.lineDiv) {\n      lineNode = cm.display.lineDiv.childNodes[offset];\n      if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }\n      node = null; offset = 0;\n    } else {\n      for (lineNode = node;; lineNode = lineNode.parentNode) {\n        if (!lineNode || lineNode == cm.display.lineDiv) { return null }\n        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }\n      }\n    }\n    for (var i = 0; i < cm.display.view.length; i++) {\n      var lineView = cm.display.view[i];\n      if (lineView.node == lineNode)\n        { return locateNodeInLineView(lineView, node, offset) }\n    }\n  }\n\n  function locateNodeInLineView(lineView, node, offset) {\n    var wrapper = lineView.text.firstChild, bad = false;\n    if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }\n    if (node == wrapper) {\n      bad = true;\n      node = wrapper.childNodes[offset];\n      offset = 0;\n      if (!node) {\n        var line = lineView.rest ? lst(lineView.rest) : lineView.line;\n        return badPos(Pos(lineNo(line), line.text.length), bad)\n      }\n    }\n\n    var textNode = node.nodeType == 3 ? node : null, topNode = node;\n    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {\n      textNode = node.firstChild;\n      if (offset) { offset = textNode.nodeValue.length; }\n    }\n    while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }\n    var measure = lineView.measure, maps = measure.maps;\n\n    function find(textNode, topNode, offset) {\n      for (var i = -1; i < (maps ? maps.length : 0); i++) {\n        var map$$1 = i < 0 ? measure.map : maps[i];\n        for (var j = 0; j < map$$1.length; j += 3) {\n          var curNode = map$$1[j + 2];\n          if (curNode == textNode || curNode == topNode) {\n            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);\n            var ch = map$$1[j] + offset;\n            if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; }\n            return Pos(line, ch)\n          }\n        }\n      }\n    }\n    var found = find(textNode, topNode, offset);\n    if (found) { return badPos(found, bad) }\n\n    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems\n    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {\n      found = find(after, after.firstChild, 0);\n      if (found)\n        { return badPos(Pos(found.line, found.ch - dist), bad) }\n      else\n        { dist += after.textContent.length; }\n    }\n    for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {\n      found = find(before, before.firstChild, -1);\n      if (found)\n        { return badPos(Pos(found.line, found.ch + dist$1), bad) }\n      else\n        { dist$1 += before.textContent.length; }\n    }\n  }\n\n  // TEXTAREA INPUT STYLE\n\n  var TextareaInput = function(cm) {\n    this.cm = cm;\n    // See input.poll and input.reset\n    this.prevInput = \"\";\n\n    // Flag that indicates whether we expect input to appear real soon\n    // now (after some event like 'keypress' or 'input') and are\n    // polling intensively.\n    this.pollingFast = false;\n    // Self-resetting timeout for the poller\n    this.polling = new Delayed();\n    // Used to work around IE issue with selection being forgotten when focus moves away from textarea\n    this.hasSelection = false;\n    this.composing = null;\n  };\n\n  TextareaInput.prototype.init = function (display) {\n      var this$1 = this;\n\n    var input = this, cm = this.cm;\n    this.createField(display);\n    var te = this.textarea;\n\n    display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);\n\n    // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)\n    if (ios) { te.style.width = \"0px\"; }\n\n    on(te, \"input\", function () {\n      if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }\n      input.poll();\n    });\n\n    on(te, \"paste\", function (e) {\n      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n\n      cm.state.pasteIncoming = +new Date;\n      input.fastPoll();\n    });\n\n    function prepareCopyCut(e) {\n      if (signalDOMEvent(cm, e)) { return }\n      if (cm.somethingSelected()) {\n        setLastCopied({lineWise: false, text: cm.getSelections()});\n      } else if (!cm.options.lineWiseCopyCut) {\n        return\n      } else {\n        var ranges = copyableRanges(cm);\n        setLastCopied({lineWise: true, text: ranges.text});\n        if (e.type == \"cut\") {\n          cm.setSelections(ranges.ranges, null, sel_dontScroll);\n        } else {\n          input.prevInput = \"\";\n          te.value = ranges.text.join(\"\\n\");\n          selectInput(te);\n        }\n      }\n      if (e.type == \"cut\") { cm.state.cutIncoming = +new Date; }\n    }\n    on(te, \"cut\", prepareCopyCut);\n    on(te, \"copy\", prepareCopyCut);\n\n    on(display.scroller, \"paste\", function (e) {\n      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }\n      if (!te.dispatchEvent) {\n        cm.state.pasteIncoming = +new Date;\n        input.focus();\n        return\n      }\n\n      // Pass the `paste` event to the textarea so it's handled by its event listener.\n      var event = new Event(\"paste\");\n      event.clipboardData = e.clipboardData;\n      te.dispatchEvent(event);\n    });\n\n    // Prevent normal selection in the editor (we handle our own)\n    on(display.lineSpace, \"selectstart\", function (e) {\n      if (!eventInWidget(display, e)) { e_preventDefault(e); }\n    });\n\n    on(te, \"compositionstart\", function () {\n      var start = cm.getCursor(\"from\");\n      if (input.composing) { input.composing.range.clear(); }\n      input.composing = {\n        start: start,\n        range: cm.markText(start, cm.getCursor(\"to\"), {className: \"CodeMirror-composing\"})\n      };\n    });\n    on(te, \"compositionend\", function () {\n      if (input.composing) {\n        input.poll();\n        input.composing.range.clear();\n        input.composing = null;\n      }\n    });\n  };\n\n  TextareaInput.prototype.createField = function (_display) {\n    // Wraps and hides input textarea\n    this.wrapper = hiddenTextarea();\n    // The semihidden textarea that is focused when the editor is\n    // focused, and receives input.\n    this.textarea = this.wrapper.firstChild;\n  };\n\n  TextareaInput.prototype.prepareSelection = function () {\n    // Redraw the selection and/or cursor\n    var cm = this.cm, display = cm.display, doc = cm.doc;\n    var result = prepareSelection(cm);\n\n    // Move the hidden textarea near the cursor to prevent scrolling artifacts\n    if (cm.options.moveInputWithCursor) {\n      var headPos = cursorCoords(cm, doc.sel.primary().head, \"div\");\n      var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();\n      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,\n                                          headPos.top + lineOff.top - wrapOff.top));\n      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,\n                                           headPos.left + lineOff.left - wrapOff.left));\n    }\n\n    return result\n  };\n\n  TextareaInput.prototype.showSelection = function (drawn) {\n    var cm = this.cm, display = cm.display;\n    removeChildrenAndAdd(display.cursorDiv, drawn.cursors);\n    removeChildrenAndAdd(display.selectionDiv, drawn.selection);\n    if (drawn.teTop != null) {\n      this.wrapper.style.top = drawn.teTop + \"px\";\n      this.wrapper.style.left = drawn.teLeft + \"px\";\n    }\n  };\n\n  // Reset the input to correspond to the selection (or to be empty,\n  // when not typing and nothing is selected)\n  TextareaInput.prototype.reset = function (typing) {\n    if (this.contextMenuPending || this.composing) { return }\n    var cm = this.cm;\n    if (cm.somethingSelected()) {\n      this.prevInput = \"\";\n      var content = cm.getSelection();\n      this.textarea.value = content;\n      if (cm.state.focused) { selectInput(this.textarea); }\n      if (ie && ie_version >= 9) { this.hasSelection = content; }\n    } else if (!typing) {\n      this.prevInput = this.textarea.value = \"\";\n      if (ie && ie_version >= 9) { this.hasSelection = null; }\n    }\n  };\n\n  TextareaInput.prototype.getField = function () { return this.textarea };\n\n  TextareaInput.prototype.supportsTouch = function () { return false };\n\n  TextareaInput.prototype.focus = function () {\n    if (this.cm.options.readOnly != \"nocursor\" && (!mobile || activeElt() != this.textarea)) {\n      try { this.textarea.focus(); }\n      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM\n    }\n  };\n\n  TextareaInput.prototype.blur = function () { this.textarea.blur(); };\n\n  TextareaInput.prototype.resetPosition = function () {\n    this.wrapper.style.top = this.wrapper.style.left = 0;\n  };\n\n  TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };\n\n  // Poll for input changes, using the normal rate of polling. This\n  // runs as long as the editor is focused.\n  TextareaInput.prototype.slowPoll = function () {\n      var this$1 = this;\n\n    if (this.pollingFast) { return }\n    this.polling.set(this.cm.options.pollInterval, function () {\n      this$1.poll();\n      if (this$1.cm.state.focused) { this$1.slowPoll(); }\n    });\n  };\n\n  // When an event has just come in that is likely to add or change\n  // something in the input textarea, we poll faster, to ensure that\n  // the change appears on the screen quickly.\n  TextareaInput.prototype.fastPoll = function () {\n    var missed = false, input = this;\n    input.pollingFast = true;\n    function p() {\n      var changed = input.poll();\n      if (!changed && !missed) {missed = true; input.polling.set(60, p);}\n      else {input.pollingFast = false; input.slowPoll();}\n    }\n    input.polling.set(20, p);\n  };\n\n  // Read input from the textarea, and update the document to match.\n  // When something is selected, it is present in the textarea, and\n  // selected (unless it is huge, in which case a placeholder is\n  // used). When nothing is selected, the cursor sits after previously\n  // seen text (can be empty), which is stored in prevInput (we must\n  // not reset the textarea when typing, because that breaks IME).\n  TextareaInput.prototype.poll = function () {\n      var this$1 = this;\n\n    var cm = this.cm, input = this.textarea, prevInput = this.prevInput;\n    // Since this is called a *lot*, try to bail out as cheaply as\n    // possible when it is clear that nothing happened. hasSelection\n    // will be the case when there is a lot of text in the textarea,\n    // in which case reading its value would be expensive.\n    if (this.contextMenuPending || !cm.state.focused ||\n        (hasSelection(input) && !prevInput && !this.composing) ||\n        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)\n      { return false }\n\n    var text = input.value;\n    // If nothing changed, bail.\n    if (text == prevInput && !cm.somethingSelected()) { return false }\n    // Work around nonsensical selection resetting in IE9/10, and\n    // inexplicable appearance of private area unicode characters on\n    // some key combos in Mac (#2689).\n    if (ie && ie_version >= 9 && this.hasSelection === text ||\n        mac && /[\\uf700-\\uf7ff]/.test(text)) {\n      cm.display.input.reset();\n      return false\n    }\n\n    if (cm.doc.sel == cm.display.selForContextMenu) {\n      var first = text.charCodeAt(0);\n      if (first == 0x200b && !prevInput) { prevInput = \"\\u200b\"; }\n      if (first == 0x21da) { this.reset(); return this.cm.execCommand(\"undo\") }\n    }\n    // Find the part of the input that is actually new\n    var same = 0, l = Math.min(prevInput.length, text.length);\n    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }\n\n    runInOp(cm, function () {\n      applyTextInput(cm, text.slice(same), prevInput.length - same,\n                     null, this$1.composing ? \"*compose\" : null);\n\n      // Don't leave long text in the textarea, since it makes further polling slow\n      if (text.length > 1000 || text.indexOf(\"\\n\") > -1) { input.value = this$1.prevInput = \"\"; }\n      else { this$1.prevInput = text; }\n\n      if (this$1.composing) {\n        this$1.composing.range.clear();\n        this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor(\"to\"),\n                                           {className: \"CodeMirror-composing\"});\n      }\n    });\n    return true\n  };\n\n  TextareaInput.prototype.ensurePolled = function () {\n    if (this.pollingFast && this.poll()) { this.pollingFast = false; }\n  };\n\n  TextareaInput.prototype.onKeyPress = function () {\n    if (ie && ie_version >= 9) { this.hasSelection = null; }\n    this.fastPoll();\n  };\n\n  TextareaInput.prototype.onContextMenu = function (e) {\n    var input = this, cm = input.cm, display = cm.display, te = input.textarea;\n    if (input.contextMenuPending) { input.contextMenuPending(); }\n    var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;\n    if (!pos || presto) { return } // Opera is difficult.\n\n    // Reset the current text selection only if the click is done outside of the selection\n    // and 'resetSelectionOnContextMenu' option is true.\n    var reset = cm.options.resetSelectionOnContextMenu;\n    if (reset && cm.doc.sel.contains(pos) == -1)\n      { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }\n\n    var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;\n    var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();\n    input.wrapper.style.cssText = \"position: static\";\n    te.style.cssText = \"position: absolute; width: 30px; height: 30px;\\n      top: \" + (e.clientY - wrapperBox.top - 5) + \"px; left: \" + (e.clientX - wrapperBox.left - 5) + \"px;\\n      z-index: 1000; background: \" + (ie ? \"rgba(255, 255, 255, .05)\" : \"transparent\") + \";\\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);\";\n    var oldScrollY;\n    if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)\n    display.input.focus();\n    if (webkit) { window.scrollTo(null, oldScrollY); }\n    display.input.reset();\n    // Adds \"Select all\" to context menu in FF\n    if (!cm.somethingSelected()) { te.value = input.prevInput = \" \"; }\n    input.contextMenuPending = rehide;\n    display.selForContextMenu = cm.doc.sel;\n    clearTimeout(display.detectingSelectAll);\n\n    // Select-all will be greyed out if there's nothing to select, so\n    // this adds a zero-width space so that we can later check whether\n    // it got selected.\n    function prepareSelectAllHack() {\n      if (te.selectionStart != null) {\n        var selected = cm.somethingSelected();\n        var extval = \"\\u200b\" + (selected ? te.value : \"\");\n        te.value = \"\\u21da\"; // Used to catch context-menu undo\n        te.value = extval;\n        input.prevInput = selected ? \"\" : \"\\u200b\";\n        te.selectionStart = 1; te.selectionEnd = extval.length;\n        // Re-set this, in case some other handler touched the\n        // selection in the meantime.\n        display.selForContextMenu = cm.doc.sel;\n      }\n    }\n    function rehide() {\n      if (input.contextMenuPending != rehide) { return }\n      input.contextMenuPending = false;\n      input.wrapper.style.cssText = oldWrapperCSS;\n      te.style.cssText = oldCSS;\n      if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }\n\n      // Try to detect the user choosing select-all\n      if (te.selectionStart != null) {\n        if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }\n        var i = 0, poll = function () {\n          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&\n              te.selectionEnd > 0 && input.prevInput == \"\\u200b\") {\n            operation(cm, selectAll)(cm);\n          } else if (i++ < 10) {\n            display.detectingSelectAll = setTimeout(poll, 500);\n          } else {\n            display.selForContextMenu = null;\n            display.input.reset();\n          }\n        };\n        display.detectingSelectAll = setTimeout(poll, 200);\n      }\n    }\n\n    if (ie && ie_version >= 9) { prepareSelectAllHack(); }\n    if (captureRightClick) {\n      e_stop(e);\n      var mouseup = function () {\n        off(window, \"mouseup\", mouseup);\n        setTimeout(rehide, 20);\n      };\n      on(window, \"mouseup\", mouseup);\n    } else {\n      setTimeout(rehide, 50);\n    }\n  };\n\n  TextareaInput.prototype.readOnlyChanged = function (val) {\n    if (!val) { this.reset(); }\n    this.textarea.disabled = val == \"nocursor\";\n  };\n\n  TextareaInput.prototype.setUneditable = function () {};\n\n  TextareaInput.prototype.needsContentAttribute = false;\n\n  function fromTextArea(textarea, options) {\n    options = options ? copyObj(options) : {};\n    options.value = textarea.value;\n    if (!options.tabindex && textarea.tabIndex)\n      { options.tabindex = textarea.tabIndex; }\n    if (!options.placeholder && textarea.placeholder)\n      { options.placeholder = textarea.placeholder; }\n    // Set autofocus to true if this textarea is focused, or if it has\n    // autofocus and no other element is focused.\n    if (options.autofocus == null) {\n      var hasFocus = activeElt();\n      options.autofocus = hasFocus == textarea ||\n        textarea.getAttribute(\"autofocus\") != null && hasFocus == document.body;\n    }\n\n    function save() {textarea.value = cm.getValue();}\n\n    var realSubmit;\n    if (textarea.form) {\n      on(textarea.form, \"submit\", save);\n      // Deplorable hack to make the submit method do the right thing.\n      if (!options.leaveSubmitMethodAlone) {\n        var form = textarea.form;\n        realSubmit = form.submit;\n        try {\n          var wrappedSubmit = form.submit = function () {\n            save();\n            form.submit = realSubmit;\n            form.submit();\n            form.submit = wrappedSubmit;\n          };\n        } catch(e) {}\n      }\n    }\n\n    options.finishInit = function (cm) {\n      cm.save = save;\n      cm.getTextArea = function () { return textarea; };\n      cm.toTextArea = function () {\n        cm.toTextArea = isNaN; // Prevent this from being ran twice\n        save();\n        textarea.parentNode.removeChild(cm.getWrapperElement());\n        textarea.style.display = \"\";\n        if (textarea.form) {\n          off(textarea.form, \"submit\", save);\n          if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == \"function\")\n            { textarea.form.submit = realSubmit; }\n        }\n      };\n    };\n\n    textarea.style.display = \"none\";\n    var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },\n      options);\n    return cm\n  }\n\n  function addLegacyProps(CodeMirror) {\n    CodeMirror.off = off;\n    CodeMirror.on = on;\n    CodeMirror.wheelEventPixels = wheelEventPixels;\n    CodeMirror.Doc = Doc;\n    CodeMirror.splitLines = splitLinesAuto;\n    CodeMirror.countColumn = countColumn;\n    CodeMirror.findColumn = findColumn;\n    CodeMirror.isWordChar = isWordCharBasic;\n    CodeMirror.Pass = Pass;\n    CodeMirror.signal = signal;\n    CodeMirror.Line = Line;\n    CodeMirror.changeEnd = changeEnd;\n    CodeMirror.scrollbarModel = scrollbarModel;\n    CodeMirror.Pos = Pos;\n    CodeMirror.cmpPos = cmp;\n    CodeMirror.modes = modes;\n    CodeMirror.mimeModes = mimeModes;\n    CodeMirror.resolveMode = resolveMode;\n    CodeMirror.getMode = getMode;\n    CodeMirror.modeExtensions = modeExtensions;\n    CodeMirror.extendMode = extendMode;\n    CodeMirror.copyState = copyState;\n    CodeMirror.startState = startState;\n    CodeMirror.innerMode = innerMode;\n    CodeMirror.commands = commands;\n    CodeMirror.keyMap = keyMap;\n    CodeMirror.keyName = keyName;\n    CodeMirror.isModifierKey = isModifierKey;\n    CodeMirror.lookupKey = lookupKey;\n    CodeMirror.normalizeKeyMap = normalizeKeyMap;\n    CodeMirror.StringStream = StringStream;\n    CodeMirror.SharedTextMarker = SharedTextMarker;\n    CodeMirror.TextMarker = TextMarker;\n    CodeMirror.LineWidget = LineWidget;\n    CodeMirror.e_preventDefault = e_preventDefault;\n    CodeMirror.e_stopPropagation = e_stopPropagation;\n    CodeMirror.e_stop = e_stop;\n    CodeMirror.addClass = addClass;\n    CodeMirror.contains = contains;\n    CodeMirror.rmClass = rmClass;\n    CodeMirror.keyNames = keyNames;\n  }\n\n  // EDITOR CONSTRUCTOR\n\n  defineOptions(CodeMirror);\n\n  addEditorMethods(CodeMirror);\n\n  // Set up methods on CodeMirror's prototype to redirect to the editor's document.\n  var dontDelegate = \"iter insert remove copy getEditor constructor\".split(\" \");\n  for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)\n    { CodeMirror.prototype[prop] = (function(method) {\n      return function() {return method.apply(this.doc, arguments)}\n    })(Doc.prototype[prop]); } }\n\n  eventMixin(Doc);\n  CodeMirror.inputStyles = {\"textarea\": TextareaInput, \"contenteditable\": ContentEditableInput};\n\n  // Extra arguments are stored as the mode's dependencies, which is\n  // used by (legacy) mechanisms like loadmode.js to automatically\n  // load a mode. (Preferred mechanism is the require/define calls.)\n  CodeMirror.defineMode = function(name/*, mode, …*/) {\n    if (!CodeMirror.defaults.mode && name != \"null\") { CodeMirror.defaults.mode = name; }\n    defineMode.apply(this, arguments);\n  };\n\n  CodeMirror.defineMIME = defineMIME;\n\n  // Minimal default mode.\n  CodeMirror.defineMode(\"null\", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });\n  CodeMirror.defineMIME(\"text/plain\", \"null\");\n\n  // EXTENSIONS\n\n  CodeMirror.defineExtension = function (name, func) {\n    CodeMirror.prototype[name] = func;\n  };\n  CodeMirror.defineDocExtension = function (name, func) {\n    Doc.prototype[name] = func;\n  };\n\n  CodeMirror.fromTextArea = fromTextArea;\n\n  addLegacyProps(CodeMirror);\n\n  CodeMirror.version = \"5.49.2\";\n\n  return CodeMirror;\n\n})));\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"), require(\"../markdown/markdown\"), require(\"../../addon/mode/overlay\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\", \"../markdown/markdown\", \"../../addon/mode/overlay\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nvar urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\\.beep|\\.lwz|\\.xpc|\\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\\.beeps?|xmpp|xri|ymsgr|z39\\.50[rs]?):(?:\\/{1,3}|[a-z0-9%])|www\\d{0,3}[.]|[a-z0-9.\\-]+[.][a-z]{2,4}\\/)(?:[^\\s()<>]|\\([^\\s()<>]*\\))+(?:\\([^\\s()<>]*\\)|[^\\s`*!()\\[\\]{};:'\".,<>?«»“”‘’]))/i\n\nCodeMirror.defineMode(\"gfm\", function(config, modeConfig) {\n  var codeDepth = 0;\n  function blankLine(state) {\n    state.code = false;\n    return null;\n  }\n  var gfmOverlay = {\n    startState: function() {\n      return {\n        code: false,\n        codeBlock: false,\n        ateSpace: false\n      };\n    },\n    copyState: function(s) {\n      return {\n        code: s.code,\n        codeBlock: s.codeBlock,\n        ateSpace: s.ateSpace\n      };\n    },\n    token: function(stream, state) {\n      state.combineTokens = null;\n\n      // Hack to prevent formatting override inside code blocks (block and inline)\n      if (state.codeBlock) {\n        if (stream.match(/^```+/)) {\n          state.codeBlock = false;\n          return null;\n        }\n        stream.skipToEnd();\n        return null;\n      }\n      if (stream.sol()) {\n        state.code = false;\n      }\n      if (stream.sol() && stream.match(/^```+/)) {\n        stream.skipToEnd();\n        state.codeBlock = true;\n        return null;\n      }\n      // If this block is changed, it may need to be updated in Markdown mode\n      if (stream.peek() === '`') {\n        stream.next();\n        var before = stream.pos;\n        stream.eatWhile('`');\n        var difference = 1 + stream.pos - before;\n        if (!state.code) {\n          codeDepth = difference;\n          state.code = true;\n        } else {\n          if (difference === codeDepth) { // Must be exact\n            state.code = false;\n          }\n        }\n        return null;\n      } else if (state.code) {\n        stream.next();\n        return null;\n      }\n      // Check if space. If so, links can be formatted later on\n      if (stream.eatSpace()) {\n        state.ateSpace = true;\n        return null;\n      }\n      if (stream.sol() || state.ateSpace) {\n        state.ateSpace = false;\n        if (modeConfig.gitHubSpice !== false) {\n          if(stream.match(/^(?:[a-zA-Z0-9\\-_]+\\/)?(?:[a-zA-Z0-9\\-_]+@)?(?=.{0,6}\\d)(?:[a-f0-9]{7,40}\\b)/)) {\n            // User/Project@SHA\n            // User@SHA\n            // SHA\n            state.combineTokens = true;\n            return \"link\";\n          } else if (stream.match(/^(?:[a-zA-Z0-9\\-_]+\\/)?(?:[a-zA-Z0-9\\-_]+)?#[0-9]+\\b/)) {\n            // User/Project#Num\n            // User#Num\n            // #Num\n            state.combineTokens = true;\n            return \"link\";\n          }\n        }\n      }\n      if (stream.match(urlRE) &&\n          stream.string.slice(stream.start - 2, stream.start) != \"](\" &&\n          (stream.start == 0 || /\\W/.test(stream.string.charAt(stream.start - 1)))) {\n        // URLs\n        // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls\n        // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine\n        // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL\n        state.combineTokens = true;\n        return \"link\";\n      }\n      stream.next();\n      return null;\n    },\n    blankLine: blankLine\n  };\n\n  var markdownConfig = {\n    taskLists: true,\n    strikethrough: true,\n    emoji: true\n  };\n  for (var attr in modeConfig) {\n    markdownConfig[attr] = modeConfig[attr];\n  }\n  markdownConfig.name = \"markdown\";\n  return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);\n\n}, \"markdown\");\n\n  CodeMirror.defineMIME(\"text/x-gfm\", \"gfm\");\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"), require(\"../xml/xml\"), require(\"../meta\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\", \"../xml/xml\", \"../meta\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nCodeMirror.defineMode(\"markdown\", function(cmCfg, modeCfg) {\n\n  var htmlMode = CodeMirror.getMode(cmCfg, \"text/html\");\n  var htmlModeMissing = htmlMode.name == \"null\"\n\n  function getMode(name) {\n    if (CodeMirror.findModeByName) {\n      var found = CodeMirror.findModeByName(name);\n      if (found) name = found.mime || found.mimes[0];\n    }\n    var mode = CodeMirror.getMode(cmCfg, name);\n    return mode.name == \"null\" ? null : mode;\n  }\n\n  // Should characters that affect highlighting be highlighted separate?\n  // Does not include characters that will be output (such as `1.` and `-` for lists)\n  if (modeCfg.highlightFormatting === undefined)\n    modeCfg.highlightFormatting = false;\n\n  // Maximum number of nested blockquotes. Set to 0 for infinite nesting.\n  // Excess `>` will emit `error` token.\n  if (modeCfg.maxBlockquoteDepth === undefined)\n    modeCfg.maxBlockquoteDepth = 0;\n\n  // Turn on task lists? (\"- [ ] \" and \"- [x] \")\n  if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;\n\n  // Turn on strikethrough syntax\n  if (modeCfg.strikethrough === undefined)\n    modeCfg.strikethrough = false;\n\n  if (modeCfg.emoji === undefined)\n    modeCfg.emoji = false;\n\n  if (modeCfg.fencedCodeBlockHighlighting === undefined)\n    modeCfg.fencedCodeBlockHighlighting = true;\n\n  if (modeCfg.xml === undefined)\n    modeCfg.xml = true;\n\n  // Allow token types to be overridden by user-provided token types.\n  if (modeCfg.tokenTypeOverrides === undefined)\n    modeCfg.tokenTypeOverrides = {};\n\n  var tokenTypes = {\n    header: \"header\",\n    code: \"comment\",\n    quote: \"quote\",\n    list1: \"variable-2\",\n    list2: \"variable-3\",\n    list3: \"keyword\",\n    hr: \"hr\",\n    image: \"image\",\n    imageAltText: \"image-alt-text\",\n    imageMarker: \"image-marker\",\n    formatting: \"formatting\",\n    linkInline: \"link\",\n    linkEmail: \"link\",\n    linkText: \"link\",\n    linkHref: \"string\",\n    em: \"em\",\n    strong: \"strong\",\n    strikethrough: \"strikethrough\",\n    emoji: \"builtin\"\n  };\n\n  for (var tokenType in tokenTypes) {\n    if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {\n      tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];\n    }\n  }\n\n  var hrRE = /^([*\\-_])(?:\\s*\\1){2,}\\s*$/\n  ,   listRE = /^(?:[*\\-+]|^[0-9]+([.)]))\\s+/\n  ,   taskListRE = /^\\[(x| )\\](?=\\s)/i // Must follow listRE\n  ,   atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/\n  ,   setextHeaderRE = /^ *(?:\\={1,}|-{1,})\\s*$/\n  ,   textRE = /^[^#!\\[\\]*_\\\\<>` \"'(~:]+/\n  ,   fencedCodeRE = /^(~~~+|```+)[ \\t]*([\\w+#-]*)[^\\n`]*$/\n  ,   linkDefRE = /^\\s*\\[[^\\]]+?\\]:.*$/ // naive link-definition\n  ,   punctuation = /[!\"#$%&'()*+,\\-.\\/:;<=>?@\\[\\\\\\]^_`{|}~\\xA1\\xA7\\xAB\\xB6\\xB7\\xBB\\xBF\\u037E\\u0387\\u055A-\\u055F\\u0589\\u058A\\u05BE\\u05C0\\u05C3\\u05C6\\u05F3\\u05F4\\u0609\\u060A\\u060C\\u060D\\u061B\\u061E\\u061F\\u066A-\\u066D\\u06D4\\u0700-\\u070D\\u07F7-\\u07F9\\u0830-\\u083E\\u085E\\u0964\\u0965\\u0970\\u0AF0\\u0DF4\\u0E4F\\u0E5A\\u0E5B\\u0F04-\\u0F12\\u0F14\\u0F3A-\\u0F3D\\u0F85\\u0FD0-\\u0FD4\\u0FD9\\u0FDA\\u104A-\\u104F\\u10FB\\u1360-\\u1368\\u1400\\u166D\\u166E\\u169B\\u169C\\u16EB-\\u16ED\\u1735\\u1736\\u17D4-\\u17D6\\u17D8-\\u17DA\\u1800-\\u180A\\u1944\\u1945\\u1A1E\\u1A1F\\u1AA0-\\u1AA6\\u1AA8-\\u1AAD\\u1B5A-\\u1B60\\u1BFC-\\u1BFF\\u1C3B-\\u1C3F\\u1C7E\\u1C7F\\u1CC0-\\u1CC7\\u1CD3\\u2010-\\u2027\\u2030-\\u2043\\u2045-\\u2051\\u2053-\\u205E\\u207D\\u207E\\u208D\\u208E\\u2308-\\u230B\\u2329\\u232A\\u2768-\\u2775\\u27C5\\u27C6\\u27E6-\\u27EF\\u2983-\\u2998\\u29D8-\\u29DB\\u29FC\\u29FD\\u2CF9-\\u2CFC\\u2CFE\\u2CFF\\u2D70\\u2E00-\\u2E2E\\u2E30-\\u2E42\\u3001-\\u3003\\u3008-\\u3011\\u3014-\\u301F\\u3030\\u303D\\u30A0\\u30FB\\uA4FE\\uA4FF\\uA60D-\\uA60F\\uA673\\uA67E\\uA6F2-\\uA6F7\\uA874-\\uA877\\uA8CE\\uA8CF\\uA8F8-\\uA8FA\\uA8FC\\uA92E\\uA92F\\uA95F\\uA9C1-\\uA9CD\\uA9DE\\uA9DF\\uAA5C-\\uAA5F\\uAADE\\uAADF\\uAAF0\\uAAF1\\uABEB\\uFD3E\\uFD3F\\uFE10-\\uFE19\\uFE30-\\uFE52\\uFE54-\\uFE61\\uFE63\\uFE68\\uFE6A\\uFE6B\\uFF01-\\uFF03\\uFF05-\\uFF0A\\uFF0C-\\uFF0F\\uFF1A\\uFF1B\\uFF1F\\uFF20\\uFF3B-\\uFF3D\\uFF3F\\uFF5B\\uFF5D\\uFF5F-\\uFF65]|\\uD800[\\uDD00-\\uDD02\\uDF9F\\uDFD0]|\\uD801\\uDD6F|\\uD802[\\uDC57\\uDD1F\\uDD3F\\uDE50-\\uDE58\\uDE7F\\uDEF0-\\uDEF6\\uDF39-\\uDF3F\\uDF99-\\uDF9C]|\\uD804[\\uDC47-\\uDC4D\\uDCBB\\uDCBC\\uDCBE-\\uDCC1\\uDD40-\\uDD43\\uDD74\\uDD75\\uDDC5-\\uDDC9\\uDDCD\\uDDDB\\uDDDD-\\uDDDF\\uDE38-\\uDE3D\\uDEA9]|\\uD805[\\uDCC6\\uDDC1-\\uDDD7\\uDE41-\\uDE43\\uDF3C-\\uDF3E]|\\uD809[\\uDC70-\\uDC74]|\\uD81A[\\uDE6E\\uDE6F\\uDEF5\\uDF37-\\uDF3B\\uDF44]|\\uD82F\\uDC9F|\\uD836[\\uDE87-\\uDE8B]/\n  ,   expandedTab = \"    \" // CommonMark specifies tab as 4 spaces\n\n  function switchInline(stream, state, f) {\n    state.f = state.inline = f;\n    return f(stream, state);\n  }\n\n  function switchBlock(stream, state, f) {\n    state.f = state.block = f;\n    return f(stream, state);\n  }\n\n  function lineIsEmpty(line) {\n    return !line || !/\\S/.test(line.string)\n  }\n\n  // Blocks\n\n  function blankLine(state) {\n    // Reset linkTitle state\n    state.linkTitle = false;\n    state.linkHref = false;\n    state.linkText = false;\n    // Reset EM state\n    state.em = false;\n    // Reset STRONG state\n    state.strong = false;\n    // Reset strikethrough state\n    state.strikethrough = false;\n    // Reset state.quote\n    state.quote = 0;\n    // Reset state.indentedCode\n    state.indentedCode = false;\n    if (state.f == htmlBlock) {\n      var exit = htmlModeMissing\n      if (!exit) {\n        var inner = CodeMirror.innerMode(htmlMode, state.htmlState)\n        exit = inner.mode.name == \"xml\" && inner.state.tagStart === null &&\n          (!inner.state.context && inner.state.tokenize.isInText)\n      }\n      if (exit) {\n        state.f = inlineNormal;\n        state.block = blockNormal;\n        state.htmlState = null;\n      }\n    }\n    // Reset state.trailingSpace\n    state.trailingSpace = 0;\n    state.trailingSpaceNewLine = false;\n    // Mark this line as blank\n    state.prevLine = state.thisLine\n    state.thisLine = {stream: null}\n    return null;\n  }\n\n  function blockNormal(stream, state) {\n    var firstTokenOnLine = stream.column() === state.indentation;\n    var prevLineLineIsEmpty = lineIsEmpty(state.prevLine.stream);\n    var prevLineIsIndentedCode = state.indentedCode;\n    var prevLineIsHr = state.prevLine.hr;\n    var prevLineIsList = state.list !== false;\n    var maxNonCodeIndentation = (state.listStack[state.listStack.length - 1] || 0) + 3;\n\n    state.indentedCode = false;\n\n    var lineIndentation = state.indentation;\n    // compute once per line (on first token)\n    if (state.indentationDiff === null) {\n      state.indentationDiff = state.indentation;\n      if (prevLineIsList) {\n        state.list = null;\n        // While this list item's marker's indentation is less than the deepest\n        //  list item's content's indentation,pop the deepest list item\n        //  indentation off the stack, and update block indentation state\n        while (lineIndentation < state.listStack[state.listStack.length - 1]) {\n          state.listStack.pop();\n          if (state.listStack.length) {\n            state.indentation = state.listStack[state.listStack.length - 1];\n          // less than the first list's indent -> the line is no longer a list\n          } else {\n            state.list = false;\n          }\n        }\n        if (state.list !== false) {\n          state.indentationDiff = lineIndentation - state.listStack[state.listStack.length - 1]\n        }\n      }\n    }\n\n    // not comprehensive (currently only for setext detection purposes)\n    var allowsInlineContinuation = (\n        !prevLineLineIsEmpty && !prevLineIsHr && !state.prevLine.header &&\n        (!prevLineIsList || !prevLineIsIndentedCode) &&\n        !state.prevLine.fencedCodeEnd\n    );\n\n    var isHr = (state.list === false || prevLineIsHr || prevLineLineIsEmpty) &&\n      state.indentation <= maxNonCodeIndentation && stream.match(hrRE);\n\n    var match = null;\n    if (state.indentationDiff >= 4 && (prevLineIsIndentedCode || state.prevLine.fencedCodeEnd ||\n         state.prevLine.header || prevLineLineIsEmpty)) {\n      stream.skipToEnd();\n      state.indentedCode = true;\n      return tokenTypes.code;\n    } else if (stream.eatSpace()) {\n      return null;\n    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(atxHeaderRE)) && match[1].length <= 6) {\n      state.quote = 0;\n      state.header = match[1].length;\n      state.thisLine.header = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      state.f = state.inline;\n      return getType(state);\n    } else if (state.indentation <= maxNonCodeIndentation && stream.eat('>')) {\n      state.quote = firstTokenOnLine ? 1 : state.quote + 1;\n      if (modeCfg.highlightFormatting) state.formatting = \"quote\";\n      stream.eatSpace();\n      return getType(state);\n    } else if (!isHr && !state.setext && firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(listRE))) {\n      var listType = match[1] ? \"ol\" : \"ul\";\n\n      state.indentation = lineIndentation + stream.current().length;\n      state.list = true;\n      state.quote = 0;\n\n      // Add this list item's content's indentation to the stack\n      state.listStack.push(state.indentation);\n      // Reset inline styles which shouldn't propagate aross list items\n      state.em = false;\n      state.strong = false;\n      state.code = false;\n      state.strikethrough = false;\n\n      if (modeCfg.taskLists && stream.match(taskListRE, false)) {\n        state.taskList = true;\n      }\n      state.f = state.inline;\n      if (modeCfg.highlightFormatting) state.formatting = [\"list\", \"list-\" + listType];\n      return getType(state);\n    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(fencedCodeRE, true))) {\n      state.quote = 0;\n      state.fencedEndRE = new RegExp(match[1] + \"+ *$\");\n      // try switching mode\n      state.localMode = modeCfg.fencedCodeBlockHighlighting && getMode(match[2]);\n      if (state.localMode) state.localState = CodeMirror.startState(state.localMode);\n      state.f = state.block = local;\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\n      state.code = -1\n      return getType(state);\n    // SETEXT has lowest block-scope precedence after HR, so check it after\n    //  the others (code, blockquote, list...)\n    } else if (\n      // if setext set, indicates line after ---/===\n      state.setext || (\n        // line before ---/===\n        (!allowsInlineContinuation || !prevLineIsList) && !state.quote && state.list === false &&\n        !state.code && !isHr && !linkDefRE.test(stream.string) &&\n        (match = stream.lookAhead(1)) && (match = match.match(setextHeaderRE))\n      )\n    ) {\n      if ( !state.setext ) {\n        state.header = match[0].charAt(0) == '=' ? 1 : 2;\n        state.setext = state.header;\n      } else {\n        state.header = state.setext;\n        // has no effect on type so we can reset it now\n        state.setext = 0;\n        stream.skipToEnd();\n        if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      }\n      state.thisLine.header = true;\n      state.f = state.inline;\n      return getType(state);\n    } else if (isHr) {\n      stream.skipToEnd();\n      state.hr = true;\n      state.thisLine.hr = true;\n      return tokenTypes.hr;\n    } else if (stream.peek() === '[') {\n      return switchInline(stream, state, footnoteLink);\n    }\n\n    return switchInline(stream, state, state.inline);\n  }\n\n  function htmlBlock(stream, state) {\n    var style = htmlMode.token(stream, state.htmlState);\n    if (!htmlModeMissing) {\n      var inner = CodeMirror.innerMode(htmlMode, state.htmlState)\n      if ((inner.mode.name == \"xml\" && inner.state.tagStart === null &&\n           (!inner.state.context && inner.state.tokenize.isInText)) ||\n          (state.md_inside && stream.current().indexOf(\">\") > -1)) {\n        state.f = inlineNormal;\n        state.block = blockNormal;\n        state.htmlState = null;\n      }\n    }\n    return style;\n  }\n\n  function local(stream, state) {\n    var currListInd = state.listStack[state.listStack.length - 1] || 0;\n    var hasExitedList = state.indentation < currListInd;\n    var maxFencedEndInd = currListInd + 3;\n    if (state.fencedEndRE && state.indentation <= maxFencedEndInd && (hasExitedList || stream.match(state.fencedEndRE))) {\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\n      var returnType;\n      if (!hasExitedList) returnType = getType(state)\n      state.localMode = state.localState = null;\n      state.block = blockNormal;\n      state.f = inlineNormal;\n      state.fencedEndRE = null;\n      state.code = 0\n      state.thisLine.fencedCodeEnd = true;\n      if (hasExitedList) return switchBlock(stream, state, state.block);\n      return returnType;\n    } else if (state.localMode) {\n      return state.localMode.token(stream, state.localState);\n    } else {\n      stream.skipToEnd();\n      return tokenTypes.code;\n    }\n  }\n\n  // Inline\n  function getType(state) {\n    var styles = [];\n\n    if (state.formatting) {\n      styles.push(tokenTypes.formatting);\n\n      if (typeof state.formatting === \"string\") state.formatting = [state.formatting];\n\n      for (var i = 0; i < state.formatting.length; i++) {\n        styles.push(tokenTypes.formatting + \"-\" + state.formatting[i]);\n\n        if (state.formatting[i] === \"header\") {\n          styles.push(tokenTypes.formatting + \"-\" + state.formatting[i] + \"-\" + state.header);\n        }\n\n        // Add `formatting-quote` and `formatting-quote-#` for blockquotes\n        // Add `error` instead if the maximum blockquote nesting depth is passed\n        if (state.formatting[i] === \"quote\") {\n          if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\n            styles.push(tokenTypes.formatting + \"-\" + state.formatting[i] + \"-\" + state.quote);\n          } else {\n            styles.push(\"error\");\n          }\n        }\n      }\n    }\n\n    if (state.taskOpen) {\n      styles.push(\"meta\");\n      return styles.length ? styles.join(' ') : null;\n    }\n    if (state.taskClosed) {\n      styles.push(\"property\");\n      return styles.length ? styles.join(' ') : null;\n    }\n\n    if (state.linkHref) {\n      styles.push(tokenTypes.linkHref, \"url\");\n    } else { // Only apply inline styles to non-url text\n      if (state.strong) { styles.push(tokenTypes.strong); }\n      if (state.em) { styles.push(tokenTypes.em); }\n      if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }\n      if (state.emoji) { styles.push(tokenTypes.emoji); }\n      if (state.linkText) { styles.push(tokenTypes.linkText); }\n      if (state.code) { styles.push(tokenTypes.code); }\n      if (state.image) { styles.push(tokenTypes.image); }\n      if (state.imageAltText) { styles.push(tokenTypes.imageAltText, \"link\"); }\n      if (state.imageMarker) { styles.push(tokenTypes.imageMarker); }\n    }\n\n    if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + \"-\" + state.header); }\n\n    if (state.quote) {\n      styles.push(tokenTypes.quote);\n\n      // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth\n      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\n        styles.push(tokenTypes.quote + \"-\" + state.quote);\n      } else {\n        styles.push(tokenTypes.quote + \"-\" + modeCfg.maxBlockquoteDepth);\n      }\n    }\n\n    if (state.list !== false) {\n      var listMod = (state.listStack.length - 1) % 3;\n      if (!listMod) {\n        styles.push(tokenTypes.list1);\n      } else if (listMod === 1) {\n        styles.push(tokenTypes.list2);\n      } else {\n        styles.push(tokenTypes.list3);\n      }\n    }\n\n    if (state.trailingSpaceNewLine) {\n      styles.push(\"trailing-space-new-line\");\n    } else if (state.trailingSpace) {\n      styles.push(\"trailing-space-\" + (state.trailingSpace % 2 ? \"a\" : \"b\"));\n    }\n\n    return styles.length ? styles.join(' ') : null;\n  }\n\n  function handleText(stream, state) {\n    if (stream.match(textRE, true)) {\n      return getType(state);\n    }\n    return undefined;\n  }\n\n  function inlineNormal(stream, state) {\n    var style = state.text(stream, state);\n    if (typeof style !== 'undefined')\n      return style;\n\n    if (state.list) { // List marker (*, +, -, 1., etc)\n      state.list = null;\n      return getType(state);\n    }\n\n    if (state.taskList) {\n      var taskOpen = stream.match(taskListRE, true)[1] === \" \";\n      if (taskOpen) state.taskOpen = true;\n      else state.taskClosed = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"task\";\n      state.taskList = false;\n      return getType(state);\n    }\n\n    state.taskOpen = false;\n    state.taskClosed = false;\n\n    if (state.header && stream.match(/^#+$/, true)) {\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      return getType(state);\n    }\n\n    var ch = stream.next();\n\n    // Matches link titles present on next line\n    if (state.linkTitle) {\n      state.linkTitle = false;\n      var matchCh = ch;\n      if (ch === '(') {\n        matchCh = ')';\n      }\n      matchCh = (matchCh+'').replace(/([.?*+^\\[\\]\\\\(){}|-])/g, \"\\\\$1\");\n      var regex = '^\\\\s*(?:[^' + matchCh + '\\\\\\\\]+|\\\\\\\\\\\\\\\\|\\\\\\\\.)' + matchCh;\n      if (stream.match(new RegExp(regex), true)) {\n        return tokenTypes.linkHref;\n      }\n    }\n\n    // If this block is changed, it may need to be updated in GFM mode\n    if (ch === '`') {\n      var previousFormatting = state.formatting;\n      if (modeCfg.highlightFormatting) state.formatting = \"code\";\n      stream.eatWhile('`');\n      var count = stream.current().length\n      if (state.code == 0 && (!state.quote || count == 1)) {\n        state.code = count\n        return getType(state)\n      } else if (count == state.code) { // Must be exact\n        var t = getType(state)\n        state.code = 0\n        return t\n      } else {\n        state.formatting = previousFormatting\n        return getType(state)\n      }\n    } else if (state.code) {\n      return getType(state);\n    }\n\n    if (ch === '\\\\') {\n      stream.next();\n      if (modeCfg.highlightFormatting) {\n        var type = getType(state);\n        var formattingEscape = tokenTypes.formatting + \"-escape\";\n        return type ? type + \" \" + formattingEscape : formattingEscape;\n      }\n    }\n\n    if (ch === '!' && stream.match(/\\[[^\\]]*\\] ?(?:\\(|\\[)/, false)) {\n      state.imageMarker = true;\n      state.image = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      return getType(state);\n    }\n\n    if (ch === '[' && state.imageMarker && stream.match(/[^\\]]*\\](\\(.*?\\)| ?\\[.*?\\])/, false)) {\n      state.imageMarker = false;\n      state.imageAltText = true\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      return getType(state);\n    }\n\n    if (ch === ']' && state.imageAltText) {\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      var type = getType(state);\n      state.imageAltText = false;\n      state.image = false;\n      state.inline = state.f = linkHref;\n      return type;\n    }\n\n    if (ch === '[' && !state.image) {\n      if (state.linkText && stream.match(/^.*?\\]/)) return getType(state)\n      state.linkText = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      return getType(state);\n    }\n\n    if (ch === ']' && state.linkText) {\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      state.linkText = false;\n      state.inline = state.f = stream.match(/\\(.*?\\)| ?\\[.*?\\]/, false) ? linkHref : inlineNormal\n      return type;\n    }\n\n    if (ch === '<' && stream.match(/^(https?|ftps?):\\/\\/(?:[^\\\\>]|\\\\.)+>/, false)) {\n      state.f = state.inline = linkInline;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkInline;\n    }\n\n    if (ch === '<' && stream.match(/^[^> \\\\]+@(?:[^\\\\>]|\\\\.)+>/, false)) {\n      state.f = state.inline = linkInline;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkEmail;\n    }\n\n    if (modeCfg.xml && ch === '<' && stream.match(/^(!--|\\?|!\\[CDATA\\[|[a-z][a-z0-9-]*(?:\\s+[a-z_:.\\-]+(?:\\s*=\\s*[^>]+)?)*\\s*(?:>|$))/i, false)) {\n      var end = stream.string.indexOf(\">\", stream.pos);\n      if (end != -1) {\n        var atts = stream.string.substring(stream.start, end);\n        if (/markdown\\s*=\\s*('|\"){0,1}1('|\"){0,1}/.test(atts)) state.md_inside = true;\n      }\n      stream.backUp(1);\n      state.htmlState = CodeMirror.startState(htmlMode);\n      return switchBlock(stream, state, htmlBlock);\n    }\n\n    if (modeCfg.xml && ch === '<' && stream.match(/^\\/\\w*?>/)) {\n      state.md_inside = false;\n      return \"tag\";\n    } else if (ch === \"*\" || ch === \"_\") {\n      var len = 1, before = stream.pos == 1 ? \" \" : stream.string.charAt(stream.pos - 2)\n      while (len < 3 && stream.eat(ch)) len++\n      var after = stream.peek() || \" \"\n      // See http://spec.commonmark.org/0.27/#emphasis-and-strong-emphasis\n      var leftFlanking = !/\\s/.test(after) && (!punctuation.test(after) || /\\s/.test(before) || punctuation.test(before))\n      var rightFlanking = !/\\s/.test(before) && (!punctuation.test(before) || /\\s/.test(after) || punctuation.test(after))\n      var setEm = null, setStrong = null\n      if (len % 2) { // Em\n        if (!state.em && leftFlanking && (ch === \"*\" || !rightFlanking || punctuation.test(before)))\n          setEm = true\n        else if (state.em == ch && rightFlanking && (ch === \"*\" || !leftFlanking || punctuation.test(after)))\n          setEm = false\n      }\n      if (len > 1) { // Strong\n        if (!state.strong && leftFlanking && (ch === \"*\" || !rightFlanking || punctuation.test(before)))\n          setStrong = true\n        else if (state.strong == ch && rightFlanking && (ch === \"*\" || !leftFlanking || punctuation.test(after)))\n          setStrong = false\n      }\n      if (setStrong != null || setEm != null) {\n        if (modeCfg.highlightFormatting) state.formatting = setEm == null ? \"strong\" : setStrong == null ? \"em\" : \"strong em\"\n        if (setEm === true) state.em = ch\n        if (setStrong === true) state.strong = ch\n        var t = getType(state)\n        if (setEm === false) state.em = false\n        if (setStrong === false) state.strong = false\n        return t\n      }\n    } else if (ch === ' ') {\n      if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces\n        if (stream.peek() === ' ') { // Surrounded by spaces, ignore\n          return getType(state);\n        } else { // Not surrounded by spaces, back up pointer\n          stream.backUp(1);\n        }\n      }\n    }\n\n    if (modeCfg.strikethrough) {\n      if (ch === '~' && stream.eatWhile(ch)) {\n        if (state.strikethrough) {// Remove strikethrough\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\n          var t = getType(state);\n          state.strikethrough = false;\n          return t;\n        } else if (stream.match(/^[^\\s]/, false)) {// Add strikethrough\n          state.strikethrough = true;\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\n          return getType(state);\n        }\n      } else if (ch === ' ') {\n        if (stream.match(/^~~/, true)) { // Probably surrounded by space\n          if (stream.peek() === ' ') { // Surrounded by spaces, ignore\n            return getType(state);\n          } else { // Not surrounded by spaces, back up pointer\n            stream.backUp(2);\n          }\n        }\n      }\n    }\n\n    if (modeCfg.emoji && ch === \":\" && stream.match(/^(?:[a-z_\\d+][a-z_\\d+-]*|\\-[a-z_\\d+][a-z_\\d+-]*):/)) {\n      state.emoji = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"emoji\";\n      var retType = getType(state);\n      state.emoji = false;\n      return retType;\n    }\n\n    if (ch === ' ') {\n      if (stream.match(/^ +$/, false)) {\n        state.trailingSpace++;\n      } else if (state.trailingSpace) {\n        state.trailingSpaceNewLine = true;\n      }\n    }\n\n    return getType(state);\n  }\n\n  function linkInline(stream, state) {\n    var ch = stream.next();\n\n    if (ch === \">\") {\n      state.f = state.inline = inlineNormal;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkInline;\n    }\n\n    stream.match(/^[^>]+/, true);\n\n    return tokenTypes.linkInline;\n  }\n\n  function linkHref(stream, state) {\n    // Check if space, and return NULL if so (to avoid marking the space)\n    if(stream.eatSpace()){\n      return null;\n    }\n    var ch = stream.next();\n    if (ch === '(' || ch === '[') {\n      state.f = state.inline = getLinkHrefInside(ch === \"(\" ? \")\" : \"]\");\n      if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\n      state.linkHref = true;\n      return getType(state);\n    }\n    return 'error';\n  }\n\n  var linkRE = {\n    \")\": /^(?:[^\\\\\\(\\)]|\\\\.|\\((?:[^\\\\\\(\\)]|\\\\.)*\\))*?(?=\\))/,\n    \"]\": /^(?:[^\\\\\\[\\]]|\\\\.|\\[(?:[^\\\\\\[\\]]|\\\\.)*\\])*?(?=\\])/\n  }\n\n  function getLinkHrefInside(endChar) {\n    return function(stream, state) {\n      var ch = stream.next();\n\n      if (ch === endChar) {\n        state.f = state.inline = inlineNormal;\n        if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\n        var returnState = getType(state);\n        state.linkHref = false;\n        return returnState;\n      }\n\n      stream.match(linkRE[endChar])\n      state.linkHref = true;\n      return getType(state);\n    };\n  }\n\n  function footnoteLink(stream, state) {\n    if (stream.match(/^([^\\]\\\\]|\\\\.)*\\]:/, false)) {\n      state.f = footnoteLinkInside;\n      stream.next(); // Consume [\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      state.linkText = true;\n      return getType(state);\n    }\n    return switchInline(stream, state, inlineNormal);\n  }\n\n  function footnoteLinkInside(stream, state) {\n    if (stream.match(/^\\]:/, true)) {\n      state.f = state.inline = footnoteUrl;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var returnType = getType(state);\n      state.linkText = false;\n      return returnType;\n    }\n\n    stream.match(/^([^\\]\\\\]|\\\\.)+/, true);\n\n    return tokenTypes.linkText;\n  }\n\n  function footnoteUrl(stream, state) {\n    // Check if space, and return NULL if so (to avoid marking the space)\n    if(stream.eatSpace()){\n      return null;\n    }\n    // Match URL\n    stream.match(/^[^\\s]+/, true);\n    // Check for link title\n    if (stream.peek() === undefined) { // End of line, set flag to check next line\n      state.linkTitle = true;\n    } else { // More content on line, check if link title\n      stream.match(/^(?:\\s+(?:\"(?:[^\"\\\\]|\\\\\\\\|\\\\.)+\"|'(?:[^'\\\\]|\\\\\\\\|\\\\.)+'|\\((?:[^)\\\\]|\\\\\\\\|\\\\.)+\\)))?/, true);\n    }\n    state.f = state.inline = inlineNormal;\n    return tokenTypes.linkHref + \" url\";\n  }\n\n  var mode = {\n    startState: function() {\n      return {\n        f: blockNormal,\n\n        prevLine: {stream: null},\n        thisLine: {stream: null},\n\n        block: blockNormal,\n        htmlState: null,\n        indentation: 0,\n\n        inline: inlineNormal,\n        text: handleText,\n\n        formatting: false,\n        linkText: false,\n        linkHref: false,\n        linkTitle: false,\n        code: 0,\n        em: false,\n        strong: false,\n        header: 0,\n        setext: 0,\n        hr: false,\n        taskList: false,\n        list: false,\n        listStack: [],\n        quote: 0,\n        trailingSpace: 0,\n        trailingSpaceNewLine: false,\n        strikethrough: false,\n        emoji: false,\n        fencedEndRE: null\n      };\n    },\n\n    copyState: function(s) {\n      return {\n        f: s.f,\n\n        prevLine: s.prevLine,\n        thisLine: s.thisLine,\n\n        block: s.block,\n        htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),\n        indentation: s.indentation,\n\n        localMode: s.localMode,\n        localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,\n\n        inline: s.inline,\n        text: s.text,\n        formatting: false,\n        linkText: s.linkText,\n        linkTitle: s.linkTitle,\n        linkHref: s.linkHref,\n        code: s.code,\n        em: s.em,\n        strong: s.strong,\n        strikethrough: s.strikethrough,\n        emoji: s.emoji,\n        header: s.header,\n        setext: s.setext,\n        hr: s.hr,\n        taskList: s.taskList,\n        list: s.list,\n        listStack: s.listStack.slice(0),\n        quote: s.quote,\n        indentedCode: s.indentedCode,\n        trailingSpace: s.trailingSpace,\n        trailingSpaceNewLine: s.trailingSpaceNewLine,\n        md_inside: s.md_inside,\n        fencedEndRE: s.fencedEndRE\n      };\n    },\n\n    token: function(stream, state) {\n\n      // Reset state.formatting\n      state.formatting = false;\n\n      if (stream != state.thisLine.stream) {\n        state.header = 0;\n        state.hr = false;\n\n        if (stream.match(/^\\s*$/, true)) {\n          blankLine(state);\n          return null;\n        }\n\n        state.prevLine = state.thisLine\n        state.thisLine = {stream: stream}\n\n        // Reset state.taskList\n        state.taskList = false;\n\n        // Reset state.trailingSpace\n        state.trailingSpace = 0;\n        state.trailingSpaceNewLine = false;\n\n        if (!state.localState) {\n          state.f = state.block;\n          if (state.f != htmlBlock) {\n            var indentation = stream.match(/^\\s*/, true)[0].replace(/\\t/g, expandedTab).length;\n            state.indentation = indentation;\n            state.indentationDiff = null;\n            if (indentation > 0) return null;\n          }\n        }\n      }\n      return state.f(stream, state);\n    },\n\n    innerMode: function(state) {\n      if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};\n      if (state.localState) return {state: state.localState, mode: state.localMode};\n      return {state: state, mode: mode};\n    },\n\n    indent: function(state, textAfter, line) {\n      if (state.block == htmlBlock && htmlMode.indent) return htmlMode.indent(state.htmlState, textAfter, line)\n      if (state.localState && state.localMode.indent) return state.localMode.indent(state.localState, textAfter, line)\n      return CodeMirror.Pass\n    },\n\n    blankLine: blankLine,\n\n    getType: getType,\n\n    blockCommentStart: \"<!--\",\n    blockCommentEnd: \"-->\",\n    closeBrackets: \"()[]{}''\\\"\\\"``\",\n    fold: \"markdown\"\n  };\n  return mode;\n}, \"xml\");\n\nCodeMirror.defineMIME(\"text/markdown\", \"markdown\");\n\nCodeMirror.defineMIME(\"text/x-markdown\", \"markdown\");\n\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n\n  CodeMirror.modeInfo = [\n    {name: \"APL\", mime: \"text/apl\", mode: \"apl\", ext: [\"dyalog\", \"apl\"]},\n    {name: \"PGP\", mimes: [\"application/pgp\", \"application/pgp-encrypted\", \"application/pgp-keys\", \"application/pgp-signature\"], mode: \"asciiarmor\", ext: [\"asc\", \"pgp\", \"sig\"]},\n    {name: \"ASN.1\", mime: \"text/x-ttcn-asn\", mode: \"asn.1\", ext: [\"asn\", \"asn1\"]},\n    {name: \"Asterisk\", mime: \"text/x-asterisk\", mode: \"asterisk\", file: /^extensions\\.conf$/i},\n    {name: \"Brainfuck\", mime: \"text/x-brainfuck\", mode: \"brainfuck\", ext: [\"b\", \"bf\"]},\n    {name: \"C\", mime: \"text/x-csrc\", mode: \"clike\", ext: [\"c\", \"h\", \"ino\"]},\n    {name: \"C++\", mime: \"text/x-c++src\", mode: \"clike\", ext: [\"cpp\", \"c++\", \"cc\", \"cxx\", \"hpp\", \"h++\", \"hh\", \"hxx\"], alias: [\"cpp\"]},\n    {name: \"Cobol\", mime: \"text/x-cobol\", mode: \"cobol\", ext: [\"cob\", \"cpy\"]},\n    {name: \"C#\", mime: \"text/x-csharp\", mode: \"clike\", ext: [\"cs\"], alias: [\"csharp\", \"cs\"]},\n    {name: \"Clojure\", mime: \"text/x-clojure\", mode: \"clojure\", ext: [\"clj\", \"cljc\", \"cljx\"]},\n    {name: \"ClojureScript\", mime: \"text/x-clojurescript\", mode: \"clojure\", ext: [\"cljs\"]},\n    {name: \"Closure Stylesheets (GSS)\", mime: \"text/x-gss\", mode: \"css\", ext: [\"gss\"]},\n    {name: \"CMake\", mime: \"text/x-cmake\", mode: \"cmake\", ext: [\"cmake\", \"cmake.in\"], file: /^CMakeLists.txt$/},\n    {name: \"CoffeeScript\", mimes: [\"application/vnd.coffeescript\", \"text/coffeescript\", \"text/x-coffeescript\"], mode: \"coffeescript\", ext: [\"coffee\"], alias: [\"coffee\", \"coffee-script\"]},\n    {name: \"Common Lisp\", mime: \"text/x-common-lisp\", mode: \"commonlisp\", ext: [\"cl\", \"lisp\", \"el\"], alias: [\"lisp\"]},\n    {name: \"Cypher\", mime: \"application/x-cypher-query\", mode: \"cypher\", ext: [\"cyp\", \"cypher\"]},\n    {name: \"Cython\", mime: \"text/x-cython\", mode: \"python\", ext: [\"pyx\", \"pxd\", \"pxi\"]},\n    {name: \"Crystal\", mime: \"text/x-crystal\", mode: \"crystal\", ext: [\"cr\"]},\n    {name: \"CSS\", mime: \"text/css\", mode: \"css\", ext: [\"css\"]},\n    {name: \"CQL\", mime: \"text/x-cassandra\", mode: \"sql\", ext: [\"cql\"]},\n    {name: \"D\", mime: \"text/x-d\", mode: \"d\", ext: [\"d\"]},\n    {name: \"Dart\", mimes: [\"application/dart\", \"text/x-dart\"], mode: \"dart\", ext: [\"dart\"]},\n    {name: \"diff\", mime: \"text/x-diff\", mode: \"diff\", ext: [\"diff\", \"patch\"]},\n    {name: \"Django\", mime: \"text/x-django\", mode: \"django\"},\n    {name: \"Dockerfile\", mime: \"text/x-dockerfile\", mode: \"dockerfile\", file: /^Dockerfile$/},\n    {name: \"DTD\", mime: \"application/xml-dtd\", mode: \"dtd\", ext: [\"dtd\"]},\n    {name: \"Dylan\", mime: \"text/x-dylan\", mode: \"dylan\", ext: [\"dylan\", \"dyl\", \"intr\"]},\n    {name: \"EBNF\", mime: \"text/x-ebnf\", mode: \"ebnf\"},\n    {name: \"ECL\", mime: \"text/x-ecl\", mode: \"ecl\", ext: [\"ecl\"]},\n    {name: \"edn\", mime: \"application/edn\", mode: \"clojure\", ext: [\"edn\"]},\n    {name: \"Eiffel\", mime: \"text/x-eiffel\", mode: \"eiffel\", ext: [\"e\"]},\n    {name: \"Elm\", mime: \"text/x-elm\", mode: \"elm\", ext: [\"elm\"]},\n    {name: \"Embedded Javascript\", mime: \"application/x-ejs\", mode: \"htmlembedded\", ext: [\"ejs\"]},\n    {name: \"Embedded Ruby\", mime: \"application/x-erb\", mode: \"htmlembedded\", ext: [\"erb\"]},\n    {name: \"Erlang\", mime: \"text/x-erlang\", mode: \"erlang\", ext: [\"erl\"]},\n    {name: \"Esper\", mime: \"text/x-esper\", mode: \"sql\"},\n    {name: \"Factor\", mime: \"text/x-factor\", mode: \"factor\", ext: [\"factor\"]},\n    {name: \"FCL\", mime: \"text/x-fcl\", mode: \"fcl\"},\n    {name: \"Forth\", mime: \"text/x-forth\", mode: \"forth\", ext: [\"forth\", \"fth\", \"4th\"]},\n    {name: \"Fortran\", mime: \"text/x-fortran\", mode: \"fortran\", ext: [\"f\", \"for\", \"f77\", \"f90\", \"f95\"]},\n    {name: \"F#\", mime: \"text/x-fsharp\", mode: \"mllike\", ext: [\"fs\"], alias: [\"fsharp\"]},\n    {name: \"Gas\", mime: \"text/x-gas\", mode: \"gas\", ext: [\"s\"]},\n    {name: \"Gherkin\", mime: \"text/x-feature\", mode: \"gherkin\", ext: [\"feature\"]},\n    {name: \"GitHub Flavored Markdown\", mime: \"text/x-gfm\", mode: \"gfm\", file: /^(readme|contributing|history).md$/i},\n    {name: \"Go\", mime: \"text/x-go\", mode: \"go\", ext: [\"go\"]},\n    {name: \"Groovy\", mime: \"text/x-groovy\", mode: \"groovy\", ext: [\"groovy\", \"gradle\"], file: /^Jenkinsfile$/},\n    {name: \"HAML\", mime: \"text/x-haml\", mode: \"haml\", ext: [\"haml\"]},\n    {name: \"Haskell\", mime: \"text/x-haskell\", mode: \"haskell\", ext: [\"hs\"]},\n    {name: \"Haskell (Literate)\", mime: \"text/x-literate-haskell\", mode: \"haskell-literate\", ext: [\"lhs\"]},\n    {name: \"Haxe\", mime: \"text/x-haxe\", mode: \"haxe\", ext: [\"hx\"]},\n    {name: \"HXML\", mime: \"text/x-hxml\", mode: \"haxe\", ext: [\"hxml\"]},\n    {name: \"ASP.NET\", mime: \"application/x-aspx\", mode: \"htmlembedded\", ext: [\"aspx\"], alias: [\"asp\", \"aspx\"]},\n    {name: \"HTML\", mime: \"text/html\", mode: \"htmlmixed\", ext: [\"html\", \"htm\", \"handlebars\", \"hbs\"], alias: [\"xhtml\"]},\n    {name: \"HTTP\", mime: \"message/http\", mode: \"http\"},\n    {name: \"IDL\", mime: \"text/x-idl\", mode: \"idl\", ext: [\"pro\"]},\n    {name: \"Pug\", mime: \"text/x-pug\", mode: \"pug\", ext: [\"jade\", \"pug\"], alias: [\"jade\"]},\n    {name: \"Java\", mime: \"text/x-java\", mode: \"clike\", ext: [\"java\"]},\n    {name: \"Java Server Pages\", mime: \"application/x-jsp\", mode: \"htmlembedded\", ext: [\"jsp\"], alias: [\"jsp\"]},\n    {name: \"JavaScript\", mimes: [\"text/javascript\", \"text/ecmascript\", \"application/javascript\", \"application/x-javascript\", \"application/ecmascript\"],\n     mode: \"javascript\", ext: [\"js\"], alias: [\"ecmascript\", \"js\", \"node\"]},\n    {name: \"JSON\", mimes: [\"application/json\", \"application/x-json\"], mode: \"javascript\", ext: [\"json\", \"map\"], alias: [\"json5\"]},\n    {name: \"JSON-LD\", mime: \"application/ld+json\", mode: \"javascript\", ext: [\"jsonld\"], alias: [\"jsonld\"]},\n    {name: \"JSX\", mime: \"text/jsx\", mode: \"jsx\", ext: [\"jsx\"]},\n    {name: \"Jinja2\", mime: \"text/jinja2\", mode: \"jinja2\", ext: [\"j2\", \"jinja\", \"jinja2\"]},\n    {name: \"Julia\", mime: \"text/x-julia\", mode: \"julia\", ext: [\"jl\"]},\n    {name: \"Kotlin\", mime: \"text/x-kotlin\", mode: \"clike\", ext: [\"kt\"]},\n    {name: \"LESS\", mime: \"text/x-less\", mode: \"css\", ext: [\"less\"]},\n    {name: \"LiveScript\", mime: \"text/x-livescript\", mode: \"livescript\", ext: [\"ls\"], alias: [\"ls\"]},\n    {name: \"Lua\", mime: \"text/x-lua\", mode: \"lua\", ext: [\"lua\"]},\n    {name: \"Markdown\", mime: \"text/x-markdown\", mode: \"markdown\", ext: [\"markdown\", \"md\", \"mkd\"]},\n    {name: \"mIRC\", mime: \"text/mirc\", mode: \"mirc\"},\n    {name: \"MariaDB SQL\", mime: \"text/x-mariadb\", mode: \"sql\"},\n    {name: \"Mathematica\", mime: \"text/x-mathematica\", mode: \"mathematica\", ext: [\"m\", \"nb\", \"wl\", \"wls\"]},\n    {name: \"Modelica\", mime: \"text/x-modelica\", mode: \"modelica\", ext: [\"mo\"]},\n    {name: \"MUMPS\", mime: \"text/x-mumps\", mode: \"mumps\", ext: [\"mps\"]},\n    {name: \"MS SQL\", mime: \"text/x-mssql\", mode: \"sql\"},\n    {name: \"mbox\", mime: \"application/mbox\", mode: \"mbox\", ext: [\"mbox\"]},\n    {name: \"MySQL\", mime: \"text/x-mysql\", mode: \"sql\"},\n    {name: \"Nginx\", mime: \"text/x-nginx-conf\", mode: \"nginx\", file: /nginx.*\\.conf$/i},\n    {name: \"NSIS\", mime: \"text/x-nsis\", mode: \"nsis\", ext: [\"nsh\", \"nsi\"]},\n    {name: \"NTriples\", mimes: [\"application/n-triples\", \"application/n-quads\", \"text/n-triples\"],\n     mode: \"ntriples\", ext: [\"nt\", \"nq\"]},\n    {name: \"Objective-C\", mime: \"text/x-objectivec\", mode: \"clike\", ext: [\"m\"], alias: [\"objective-c\", \"objc\"]},\n    {name: \"Objective-C++\", mime: \"text/x-objectivec++\", mode: \"clike\", ext: [\"mm\"], alias: [\"objective-c++\", \"objc++\"]},\n    {name: \"OCaml\", mime: \"text/x-ocaml\", mode: \"mllike\", ext: [\"ml\", \"mli\", \"mll\", \"mly\"]},\n    {name: \"Octave\", mime: \"text/x-octave\", mode: \"octave\", ext: [\"m\"]},\n    {name: \"Oz\", mime: \"text/x-oz\", mode: \"oz\", ext: [\"oz\"]},\n    {name: \"Pascal\", mime: \"text/x-pascal\", mode: \"pascal\", ext: [\"p\", \"pas\"]},\n    {name: \"PEG.js\", mime: \"null\", mode: \"pegjs\", ext: [\"jsonld\"]},\n    {name: \"Perl\", mime: \"text/x-perl\", mode: \"perl\", ext: [\"pl\", \"pm\"]},\n    {name: \"PHP\", mimes: [\"text/x-php\", \"application/x-httpd-php\", \"application/x-httpd-php-open\"], mode: \"php\", ext: [\"php\", \"php3\", \"php4\", \"php5\", \"php7\", \"phtml\"]},\n    {name: \"Pig\", mime: \"text/x-pig\", mode: \"pig\", ext: [\"pig\"]},\n    {name: \"Plain Text\", mime: \"text/plain\", mode: \"null\", ext: [\"txt\", \"text\", \"conf\", \"def\", \"list\", \"log\"]},\n    {name: \"PLSQL\", mime: \"text/x-plsql\", mode: \"sql\", ext: [\"pls\"]},\n    {name: \"PostgreSQL\", mime: \"text/x-pgsql\", mode: \"sql\"},\n    {name: \"PowerShell\", mime: \"application/x-powershell\", mode: \"powershell\", ext: [\"ps1\", \"psd1\", \"psm1\"]},\n    {name: \"Properties files\", mime: \"text/x-properties\", mode: \"properties\", ext: [\"properties\", \"ini\", \"in\"], alias: [\"ini\", \"properties\"]},\n    {name: \"ProtoBuf\", mime: \"text/x-protobuf\", mode: \"protobuf\", ext: [\"proto\"]},\n    {name: \"Python\", mime: \"text/x-python\", mode: \"python\", ext: [\"BUILD\", \"bzl\", \"py\", \"pyw\"], file: /^(BUCK|BUILD)$/},\n    {name: \"Puppet\", mime: \"text/x-puppet\", mode: \"puppet\", ext: [\"pp\"]},\n    {name: \"Q\", mime: \"text/x-q\", mode: \"q\", ext: [\"q\"]},\n    {name: \"R\", mime: \"text/x-rsrc\", mode: \"r\", ext: [\"r\", \"R\"], alias: [\"rscript\"]},\n    {name: \"reStructuredText\", mime: \"text/x-rst\", mode: \"rst\", ext: [\"rst\"], alias: [\"rst\"]},\n    {name: \"RPM Changes\", mime: \"text/x-rpm-changes\", mode: \"rpm\"},\n    {name: \"RPM Spec\", mime: \"text/x-rpm-spec\", mode: \"rpm\", ext: [\"spec\"]},\n    {name: \"Ruby\", mime: \"text/x-ruby\", mode: \"ruby\", ext: [\"rb\"], alias: [\"jruby\", \"macruby\", \"rake\", \"rb\", \"rbx\"]},\n    {name: \"Rust\", mime: \"text/x-rustsrc\", mode: \"rust\", ext: [\"rs\"]},\n    {name: \"SAS\", mime: \"text/x-sas\", mode: \"sas\", ext: [\"sas\"]},\n    {name: \"Sass\", mime: \"text/x-sass\", mode: \"sass\", ext: [\"sass\"]},\n    {name: \"Scala\", mime: \"text/x-scala\", mode: \"clike\", ext: [\"scala\"]},\n    {name: \"Scheme\", mime: \"text/x-scheme\", mode: \"scheme\", ext: [\"scm\", \"ss\"]},\n    {name: \"SCSS\", mime: \"text/x-scss\", mode: \"css\", ext: [\"scss\"]},\n    {name: \"Shell\", mimes: [\"text/x-sh\", \"application/x-sh\"], mode: \"shell\", ext: [\"sh\", \"ksh\", \"bash\"], alias: [\"bash\", \"sh\", \"zsh\"], file: /^PKGBUILD$/},\n    {name: \"Sieve\", mime: \"application/sieve\", mode: \"sieve\", ext: [\"siv\", \"sieve\"]},\n    {name: \"Slim\", mimes: [\"text/x-slim\", \"application/x-slim\"], mode: \"slim\", ext: [\"slim\"]},\n    {name: \"Smalltalk\", mime: \"text/x-stsrc\", mode: \"smalltalk\", ext: [\"st\"]},\n    {name: \"Smarty\", mime: \"text/x-smarty\", mode: \"smarty\", ext: [\"tpl\"]},\n    {name: \"Solr\", mime: \"text/x-solr\", mode: \"solr\"},\n    {name: \"SML\", mime: \"text/x-sml\", mode: \"mllike\", ext: [\"sml\", \"sig\", \"fun\", \"smackspec\"]},\n    {name: \"Soy\", mime: \"text/x-soy\", mode: \"soy\", ext: [\"soy\"], alias: [\"closure template\"]},\n    {name: \"SPARQL\", mime: \"application/sparql-query\", mode: \"sparql\", ext: [\"rq\", \"sparql\"], alias: [\"sparul\"]},\n    {name: \"Spreadsheet\", mime: \"text/x-spreadsheet\", mode: \"spreadsheet\", alias: [\"excel\", \"formula\"]},\n    {name: \"SQL\", mime: \"text/x-sql\", mode: \"sql\", ext: [\"sql\"]},\n    {name: \"SQLite\", mime: \"text/x-sqlite\", mode: \"sql\"},\n    {name: \"Squirrel\", mime: \"text/x-squirrel\", mode: \"clike\", ext: [\"nut\"]},\n    {name: \"Stylus\", mime: \"text/x-styl\", mode: \"stylus\", ext: [\"styl\"]},\n    {name: \"Swift\", mime: \"text/x-swift\", mode: \"swift\", ext: [\"swift\"]},\n    {name: \"sTeX\", mime: \"text/x-stex\", mode: \"stex\"},\n    {name: \"LaTeX\", mime: \"text/x-latex\", mode: \"stex\", ext: [\"text\", \"ltx\", \"tex\"], alias: [\"tex\"]},\n    {name: \"SystemVerilog\", mime: \"text/x-systemverilog\", mode: \"verilog\", ext: [\"v\", \"sv\", \"svh\"]},\n    {name: \"Tcl\", mime: \"text/x-tcl\", mode: \"tcl\", ext: [\"tcl\"]},\n    {name: \"Textile\", mime: \"text/x-textile\", mode: \"textile\", ext: [\"textile\"]},\n    {name: \"TiddlyWiki \", mime: \"text/x-tiddlywiki\", mode: \"tiddlywiki\"},\n    {name: \"Tiki wiki\", mime: \"text/tiki\", mode: \"tiki\"},\n    {name: \"TOML\", mime: \"text/x-toml\", mode: \"toml\", ext: [\"toml\"]},\n    {name: \"Tornado\", mime: \"text/x-tornado\", mode: \"tornado\"},\n    {name: \"troff\", mime: \"text/troff\", mode: \"troff\", ext: [\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\"]},\n    {name: \"TTCN\", mime: \"text/x-ttcn\", mode: \"ttcn\", ext: [\"ttcn\", \"ttcn3\", \"ttcnpp\"]},\n    {name: \"TTCN_CFG\", mime: \"text/x-ttcn-cfg\", mode: \"ttcn-cfg\", ext: [\"cfg\"]},\n    {name: \"Turtle\", mime: \"text/turtle\", mode: \"turtle\", ext: [\"ttl\"]},\n    {name: \"TypeScript\", mime: \"application/typescript\", mode: \"javascript\", ext: [\"ts\"], alias: [\"ts\"]},\n    {name: \"TypeScript-JSX\", mime: \"text/typescript-jsx\", mode: \"jsx\", ext: [\"tsx\"], alias: [\"tsx\"]},\n    {name: \"Twig\", mime: \"text/x-twig\", mode: \"twig\"},\n    {name: \"Web IDL\", mime: \"text/x-webidl\", mode: \"webidl\", ext: [\"webidl\"]},\n    {name: \"VB.NET\", mime: \"text/x-vb\", mode: \"vb\", ext: [\"vb\"]},\n    {name: \"VBScript\", mime: \"text/vbscript\", mode: \"vbscript\", ext: [\"vbs\"]},\n    {name: \"Velocity\", mime: \"text/velocity\", mode: \"velocity\", ext: [\"vtl\"]},\n    {name: \"Verilog\", mime: \"text/x-verilog\", mode: \"verilog\", ext: [\"v\"]},\n    {name: \"VHDL\", mime: \"text/x-vhdl\", mode: \"vhdl\", ext: [\"vhd\", \"vhdl\"]},\n    {name: \"Vue.js Component\", mimes: [\"script/x-vue\", \"text/x-vue\"], mode: \"vue\", ext: [\"vue\"]},\n    {name: \"XML\", mimes: [\"application/xml\", \"text/xml\"], mode: \"xml\", ext: [\"xml\", \"xsl\", \"xsd\", \"svg\"], alias: [\"rss\", \"wsdl\", \"xsd\"]},\n    {name: \"XQuery\", mime: \"application/xquery\", mode: \"xquery\", ext: [\"xy\", \"xquery\"]},\n    {name: \"Yacas\", mime: \"text/x-yacas\", mode: \"yacas\", ext: [\"ys\"]},\n    {name: \"YAML\", mimes: [\"text/x-yaml\", \"text/yaml\"], mode: \"yaml\", ext: [\"yaml\", \"yml\"], alias: [\"yml\"]},\n    {name: \"Z80\", mime: \"text/x-z80\", mode: \"z80\", ext: [\"z80\"]},\n    {name: \"mscgen\", mime: \"text/x-mscgen\", mode: \"mscgen\", ext: [\"mscgen\", \"mscin\", \"msc\"]},\n    {name: \"xu\", mime: \"text/x-xu\", mode: \"mscgen\", ext: [\"xu\"]},\n    {name: \"msgenny\", mime: \"text/x-msgenny\", mode: \"mscgen\", ext: [\"msgenny\"]}\n  ];\n  // Ensure all modes have a mime property for backwards compatibility\n  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n    var info = CodeMirror.modeInfo[i];\n    if (info.mimes) info.mime = info.mimes[0];\n  }\n\n  CodeMirror.findModeByMIME = function(mime) {\n    mime = mime.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.mime == mime) return info;\n      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)\n        if (info.mimes[j] == mime) return info;\n    }\n    if (/\\+xml$/.test(mime)) return CodeMirror.findModeByMIME(\"application/xml\")\n    if (/\\+json$/.test(mime)) return CodeMirror.findModeByMIME(\"application/json\")\n  };\n\n  CodeMirror.findModeByExtension = function(ext) {\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.ext) for (var j = 0; j < info.ext.length; j++)\n        if (info.ext[j] == ext) return info;\n    }\n  };\n\n  CodeMirror.findModeByFileName = function(filename) {\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.file && info.file.test(filename)) return info;\n    }\n    var dot = filename.lastIndexOf(\".\");\n    var ext = dot > -1 && filename.substring(dot + 1, filename.length);\n    if (ext) return CodeMirror.findModeByExtension(ext);\n  };\n\n  CodeMirror.findModeByName = function(name) {\n    name = name.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.name.toLowerCase() == name) return info;\n      if (info.alias) for (var j = 0; j < info.alias.length; j++)\n        if (info.alias[j].toLowerCase() == name) return info;\n    }\n  };\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nvar htmlConfig = {\n  autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,\n                    'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,\n                    'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,\n                    'track': true, 'wbr': true, 'menuitem': true},\n  implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,\n                     'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,\n                     'th': true, 'tr': true},\n  contextGrabbers: {\n    'dd': {'dd': true, 'dt': true},\n    'dt': {'dd': true, 'dt': true},\n    'li': {'li': true},\n    'option': {'option': true, 'optgroup': true},\n    'optgroup': {'optgroup': true},\n    'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,\n          'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,\n          'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,\n          'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,\n          'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},\n    'rp': {'rp': true, 'rt': true},\n    'rt': {'rp': true, 'rt': true},\n    'tbody': {'tbody': true, 'tfoot': true},\n    'td': {'td': true, 'th': true},\n    'tfoot': {'tbody': true},\n    'th': {'td': true, 'th': true},\n    'thead': {'tbody': true, 'tfoot': true},\n    'tr': {'tr': true}\n  },\n  doNotIndent: {\"pre\": true},\n  allowUnquoted: true,\n  allowMissing: true,\n  caseFold: true\n}\n\nvar xmlConfig = {\n  autoSelfClosers: {},\n  implicitlyClosed: {},\n  contextGrabbers: {},\n  doNotIndent: {},\n  allowUnquoted: false,\n  allowMissing: false,\n  allowMissingTagName: false,\n  caseFold: false\n}\n\nCodeMirror.defineMode(\"xml\", function(editorConf, config_) {\n  var indentUnit = editorConf.indentUnit\n  var config = {}\n  var defaults = config_.htmlMode ? htmlConfig : xmlConfig\n  for (var prop in defaults) config[prop] = defaults[prop]\n  for (var prop in config_) config[prop] = config_[prop]\n\n  // Return variables for tokenizers\n  var type, setStyle;\n\n  function inText(stream, state) {\n    function chain(parser) {\n      state.tokenize = parser;\n      return parser(stream, state);\n    }\n\n    var ch = stream.next();\n    if (ch == \"<\") {\n      if (stream.eat(\"!\")) {\n        if (stream.eat(\"[\")) {\n          if (stream.match(\"CDATA[\")) return chain(inBlock(\"atom\", \"]]>\"));\n          else return null;\n        } else if (stream.match(\"--\")) {\n          return chain(inBlock(\"comment\", \"-->\"));\n        } else if (stream.match(\"DOCTYPE\", true, true)) {\n          stream.eatWhile(/[\\w\\._\\-]/);\n          return chain(doctype(1));\n        } else {\n          return null;\n        }\n      } else if (stream.eat(\"?\")) {\n        stream.eatWhile(/[\\w\\._\\-]/);\n        state.tokenize = inBlock(\"meta\", \"?>\");\n        return \"meta\";\n      } else {\n        type = stream.eat(\"/\") ? \"closeTag\" : \"openTag\";\n        state.tokenize = inTag;\n        return \"tag bracket\";\n      }\n    } else if (ch == \"&\") {\n      var ok;\n      if (stream.eat(\"#\")) {\n        if (stream.eat(\"x\")) {\n          ok = stream.eatWhile(/[a-fA-F\\d]/) && stream.eat(\";\");\n        } else {\n          ok = stream.eatWhile(/[\\d]/) && stream.eat(\";\");\n        }\n      } else {\n        ok = stream.eatWhile(/[\\w\\.\\-:]/) && stream.eat(\";\");\n      }\n      return ok ? \"atom\" : \"error\";\n    } else {\n      stream.eatWhile(/[^&<]/);\n      return null;\n    }\n  }\n  inText.isInText = true;\n\n  function inTag(stream, state) {\n    var ch = stream.next();\n    if (ch == \">\" || (ch == \"/\" && stream.eat(\">\"))) {\n      state.tokenize = inText;\n      type = ch == \">\" ? \"endTag\" : \"selfcloseTag\";\n      return \"tag bracket\";\n    } else if (ch == \"=\") {\n      type = \"equals\";\n      return null;\n    } else if (ch == \"<\") {\n      state.tokenize = inText;\n      state.state = baseState;\n      state.tagName = state.tagStart = null;\n      var next = state.tokenize(stream, state);\n      return next ? next + \" tag error\" : \"tag error\";\n    } else if (/[\\'\\\"]/.test(ch)) {\n      state.tokenize = inAttribute(ch);\n      state.stringStartCol = stream.column();\n      return state.tokenize(stream, state);\n    } else {\n      stream.match(/^[^\\s\\u00a0=<>\\\"\\']*[^\\s\\u00a0=<>\\\"\\'\\/]/);\n      return \"word\";\n    }\n  }\n\n  function inAttribute(quote) {\n    var closure = function(stream, state) {\n      while (!stream.eol()) {\n        if (stream.next() == quote) {\n          state.tokenize = inTag;\n          break;\n        }\n      }\n      return \"string\";\n    };\n    closure.isInAttribute = true;\n    return closure;\n  }\n\n  function inBlock(style, terminator) {\n    return function(stream, state) {\n      while (!stream.eol()) {\n        if (stream.match(terminator)) {\n          state.tokenize = inText;\n          break;\n        }\n        stream.next();\n      }\n      return style;\n    }\n  }\n\n  function doctype(depth) {\n    return function(stream, state) {\n      var ch;\n      while ((ch = stream.next()) != null) {\n        if (ch == \"<\") {\n          state.tokenize = doctype(depth + 1);\n          return state.tokenize(stream, state);\n        } else if (ch == \">\") {\n          if (depth == 1) {\n            state.tokenize = inText;\n            break;\n          } else {\n            state.tokenize = doctype(depth - 1);\n            return state.tokenize(stream, state);\n          }\n        }\n      }\n      return \"meta\";\n    };\n  }\n\n  function Context(state, tagName, startOfLine) {\n    this.prev = state.context;\n    this.tagName = tagName;\n    this.indent = state.indented;\n    this.startOfLine = startOfLine;\n    if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))\n      this.noIndent = true;\n  }\n  function popContext(state) {\n    if (state.context) state.context = state.context.prev;\n  }\n  function maybePopContext(state, nextTagName) {\n    var parentTagName;\n    while (true) {\n      if (!state.context) {\n        return;\n      }\n      parentTagName = state.context.tagName;\n      if (!config.contextGrabbers.hasOwnProperty(parentTagName) ||\n          !config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {\n        return;\n      }\n      popContext(state);\n    }\n  }\n\n  function baseState(type, stream, state) {\n    if (type == \"openTag\") {\n      state.tagStart = stream.column();\n      return tagNameState;\n    } else if (type == \"closeTag\") {\n      return closeTagNameState;\n    } else {\n      return baseState;\n    }\n  }\n  function tagNameState(type, stream, state) {\n    if (type == \"word\") {\n      state.tagName = stream.current();\n      setStyle = \"tag\";\n      return attrState;\n    } else if (config.allowMissingTagName && type == \"endTag\") {\n      setStyle = \"tag bracket\";\n      return attrState(type, stream, state);\n    } else {\n      setStyle = \"error\";\n      return tagNameState;\n    }\n  }\n  function closeTagNameState(type, stream, state) {\n    if (type == \"word\") {\n      var tagName = stream.current();\n      if (state.context && state.context.tagName != tagName &&\n          config.implicitlyClosed.hasOwnProperty(state.context.tagName))\n        popContext(state);\n      if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {\n        setStyle = \"tag\";\n        return closeState;\n      } else {\n        setStyle = \"tag error\";\n        return closeStateErr;\n      }\n    } else if (config.allowMissingTagName && type == \"endTag\") {\n      setStyle = \"tag bracket\";\n      return closeState(type, stream, state);\n    } else {\n      setStyle = \"error\";\n      return closeStateErr;\n    }\n  }\n\n  function closeState(type, _stream, state) {\n    if (type != \"endTag\") {\n      setStyle = \"error\";\n      return closeState;\n    }\n    popContext(state);\n    return baseState;\n  }\n  function closeStateErr(type, stream, state) {\n    setStyle = \"error\";\n    return closeState(type, stream, state);\n  }\n\n  function attrState(type, _stream, state) {\n    if (type == \"word\") {\n      setStyle = \"attribute\";\n      return attrEqState;\n    } else if (type == \"endTag\" || type == \"selfcloseTag\") {\n      var tagName = state.tagName, tagStart = state.tagStart;\n      state.tagName = state.tagStart = null;\n      if (type == \"selfcloseTag\" ||\n          config.autoSelfClosers.hasOwnProperty(tagName)) {\n        maybePopContext(state, tagName);\n      } else {\n        maybePopContext(state, tagName);\n        state.context = new Context(state, tagName, tagStart == state.indented);\n      }\n      return baseState;\n    }\n    setStyle = \"error\";\n    return attrState;\n  }\n  function attrEqState(type, stream, state) {\n    if (type == \"equals\") return attrValueState;\n    if (!config.allowMissing) setStyle = \"error\";\n    return attrState(type, stream, state);\n  }\n  function attrValueState(type, stream, state) {\n    if (type == \"string\") return attrContinuedState;\n    if (type == \"word\" && config.allowUnquoted) {setStyle = \"string\"; return attrState;}\n    setStyle = \"error\";\n    return attrState(type, stream, state);\n  }\n  function attrContinuedState(type, stream, state) {\n    if (type == \"string\") return attrContinuedState;\n    return attrState(type, stream, state);\n  }\n\n  return {\n    startState: function(baseIndent) {\n      var state = {tokenize: inText,\n                   state: baseState,\n                   indented: baseIndent || 0,\n                   tagName: null, tagStart: null,\n                   context: null}\n      if (baseIndent != null) state.baseIndent = baseIndent\n      return state\n    },\n\n    token: function(stream, state) {\n      if (!state.tagName && stream.sol())\n        state.indented = stream.indentation();\n\n      if (stream.eatSpace()) return null;\n      type = null;\n      var style = state.tokenize(stream, state);\n      if ((style || type) && style != \"comment\") {\n        setStyle = null;\n        state.state = state.state(type || style, stream, state);\n        if (setStyle)\n          style = setStyle == \"error\" ? style + \" error\" : setStyle;\n      }\n      return style;\n    },\n\n    indent: function(state, textAfter, fullLine) {\n      var context = state.context;\n      // Indent multi-line strings (e.g. css).\n      if (state.tokenize.isInAttribute) {\n        if (state.tagStart == state.indented)\n          return state.stringStartCol + 1;\n        else\n          return state.indented + indentUnit;\n      }\n      if (context && context.noIndent) return CodeMirror.Pass;\n      if (state.tokenize != inTag && state.tokenize != inText)\n        return fullLine ? fullLine.match(/^(\\s*)/)[0].length : 0;\n      // Indent the starts of attribute names.\n      if (state.tagName) {\n        if (config.multilineTagIndentPastTag !== false)\n          return state.tagStart + state.tagName.length + 2;\n        else\n          return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);\n      }\n      if (config.alignCDATA && /<!\\[CDATA\\[/.test(textAfter)) return 0;\n      var tagAfter = textAfter && /^<(\\/)?([\\w_:\\.-]*)/.exec(textAfter);\n      if (tagAfter && tagAfter[1]) { // Closing tag spotted\n        while (context) {\n          if (context.tagName == tagAfter[2]) {\n            context = context.prev;\n            break;\n          } else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) {\n            context = context.prev;\n          } else {\n            break;\n          }\n        }\n      } else if (tagAfter) { // Opening tag spotted\n        while (context) {\n          var grabbers = config.contextGrabbers[context.tagName];\n          if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))\n            context = context.prev;\n          else\n            break;\n        }\n      }\n      while (context && context.prev && !context.startOfLine)\n        context = context.prev;\n      if (context) return context.indent + indentUnit;\n      else return state.baseIndent || 0;\n    },\n\n    electricInput: /<\\/[\\s\\w:]+>$/,\n    blockCommentStart: \"<!--\",\n    blockCommentEnd: \"-->\",\n\n    configuration: config.htmlMode ? \"html\" : \"xml\",\n    helperType: config.htmlMode ? \"html\" : \"xml\",\n\n    skipAttribute: function(state) {\n      if (state.state == attrValueState)\n        state.state = attrState\n    },\n\n    xmlCurrentTag: function(state) {\n      return state.tagName ? {name: state.tagName, close: state.type == \"closeTag\"} : null\n    },\n\n    xmlCurrentContext: function(state) {\n      var context = []\n      for (var cx = state.context; cx; cx = cx.prev)\n        if (cx.tagName) context.push(cx.tagName)\n      return context.reverse()\n    }\n  };\n});\n\nCodeMirror.defineMIME(\"text/xml\", \"xml\");\nCodeMirror.defineMIME(\"application/xml\", \"xml\");\nif (!CodeMirror.mimeModes.hasOwnProperty(\"text/html\"))\n  CodeMirror.defineMIME(\"text/html\", {name: \"xml\", htmlMode: true});\n\n});\n","\nmodule.exports = {\n\n    _patterns: [\n\n        {\n            name: 'blockquote',\n            regex: /<blockquote.*?>([\\s\\S]*?)<\\/blockquote>/im,\n            callback: function (matches) {\n                return '> ' + this.trim(matches[1]);\n            }\n        },\n\n        {\n\n            name: 'pre-code',\n            regex: /<pre.*?>.*?<code.*?>([\\s\\S]*?)<\\/code>.*?<\\/pre>/im,\n            callback: function (matches) {\n                return '```\\n' + this.escape(matches[1]) + '\\n```';\n                //return '\\n```\\n$1\\n```\\n';\n            }\n        },\n\n        {\n            name: 'code',\n            regex: /<code.*?>([\\s\\S]*?)<\\/code>/im,\n            callback: function (matches) {\n                return '```' + this.escape(matches[1]) + '```';\n            }\n        },\n\n        {\n            name: 'pre',\n            regex: /<pre.*?>([\\s\\S]*?)<\\/pre>/im,\n            callback: function (matches) {\n                return '\\n```\\n' + this.escape(matches[1]) + '\\n```\\n';\n            }\n        },\n\n        {\n            name: 'heading',\n            regex: /<h(\\d*).*?>(.*?)<\\/h\\d*>/im,\n            callback: function (matches) {\n                var count = parseInt(matches[1]);\n                var string = '';\n                for (var x = 0; x < count; x++) {\n                    string += '#'\n                }\n                return string + ' ' + this.trim(matches[2]) + '\\n';\n            }\n        },\n        {\n            name: 'p',\n            //regex: /<p>([\\s\\S]*?)<\\/p>/gim,\n            regex: /<p.*?>(.*?)<\\/p>/gmi,\n            callback: function () {\n                return '\\n$1\\n';\n            }\n\n        },\n\n\n        {\n            name: 'ul',\n            regex: /<ul.*?>([\\s\\S]*?)<\\/ul>/im,\n            callback: function (matches) {\n                var html = matches[1];\n                var regex = /<li>([\\s\\S]*?)<\\/li>/i;\n                var m = [];\n                while (m = regex.exec(html)) {\n                    if (m) {\n                        html = this.trim(html.replace(regex, '* $1{x}'));\n                    }\n                }\n                return html.replace(/{x}/g, '\\n');;\n\n            }\n        },\n        {\n            name: 'ol',\n            regex: /<ol.*?>([\\s\\S]*?)<\\/ol>/im,\n            callback: function (matches) {\n                var html = matches[1];\n                var regex = /<li>([\\s\\S]*?)<\\/li>/i;\n                var m = [];\n                while (m = regex.exec(html)) {\n                    if (m) {\n                        html = this.trim(html.replace(regex, '1. $1{x}'));\n                    }\n                }\n                return html.replace(/{x}/g, '\\n');\n            }\n        },\n\n\n        {\n            name: 'bold',\n            regex: /<(?:b|strong)>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '**$1**';\n            }\n        },\n\n        {\n            name: 'italic',\n            regex: /<(?:i|em)>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '*$1*';\n            }\n        },\n        {\n            name: 'del',\n            regex: /<del.*?>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '~~$1~~';\n            }\n        },\n\n        {\n            name: 'br',\n            regex: /<br.*?>/gim,\n            callback: function () {\n                return '\\n';\n            }\n        },\n        {\n            name: 'hr',\n            regex: /<hr.*?>/gim,\n            callback: function () {\n                return '\\n* * *\\n';\n            }\n        },\n\n        {\n            name: 'div',\n            regex: /<div.*?>(.*?)<\\/div>/gim,\n            callback: function () {\n                return '$1\\n';\n            }\n        },\n        {\n            name: 'a',\n            regex: /<a.*? href=\"([^\"]+)\".*?>([^<]+)<\\/a>/gim,\n            callback: function () {\n                return '[$2]($1 \"$2\")';\n            }\n\n        },\n        {\n            name: 'image',\n            regex: /<img.*?src\\s*=\\s*['\\\"]([^'\\\"]*?)['\\\"][^>]*?>/gim,\n            callback: function () {\n                return '![]($1)';\n            }\n        },\n\n        {\n            name: 'style',\n            regex: /<style\\b[^<]*(?:(?!<\\/style>)<[^<]*)*<\\/style>/gim,\n            callback: function () {\n                return '';\n            }\n        },\n\n        {\n            name: 'script',\n            regex: /<script\\b[^<]*(?:(?!<\\/script>)<[^<]*)*<\\/script>/gim,\n            callback: function () {\n                return '';\n            }\n        },\n\n        {\n            name: 'html',\n            regex: /<(?:.)*?>/gm,\n            callback: function () {\n                return '';\n            }\n        },\n\n\n    ],\n\n    escape: function (html) {\n        return html\n            .replace(/</g, \"&lt;\")\n            .replace(/>/g, \"&gt;\");\n        // .replace(/\"/g, \"&quot;\")\n        // .replace(/'/g, \"&#039;\");\n    },\n\n    decode: function (str) {\n\n\n\n        return str.replace(/&nbsp;/g, ' ')\n            .replace(/&amp;/g, '&')\n            .replace(/&gt;/g, '>')\n            .replace(/&lt;/g, '<')\n            .replace(/&quot;/g, '\"')\n            .replace(/&#(\\d+);/g, function (match, dec) {\n                return String.fromCharCode(dec);\n            });\n\n    },\n    trim: function (str) {\n        return str.replace(/(?:(?:^|\\n)\\s+|\\s+(?:$|\\n))/g, '').replace(/\\s+/g, ' ');\n    },\n    parse: function (html, regexs) {\n        var _t = this;\n        if (html && html.length > 0) {\n\n            if (regexs) {\n                regexs = Array.isArray(regexs) ? regexs : [regexs];\n                this._patterns.concat(regexs);\n            }\n            this._patterns.forEach(function (p) {\n                var matches = [];\n                while (matches = p.regex.exec(html)) {\n                    // console.log(matches);\n                    if (matches) {\n                        var txt = '$1';\n                        if (p.callback && typeof (p.callback) === 'function') {\n                            txt = p.callback.call(_t, matches);\n                        }\n\n                        html = html.replace(p.regex, txt);\n                    }\n                }\n            });\n        }\n        return this.decode(html);\n    }\n}","/**\n * marked - a markdown parser\n * Copyright (c) 2011-2018, Christopher Jeffrey. (MIT Licensed)\n * https://github.com/markedjs/marked\n */\n\n;(function(root) {\n'use strict';\n\n/**\n * Block-Level Grammar\n */\n\nvar block = {\n  newline: /^\\n+/,\n  code: /^( {4}[^\\n]+\\n*)+/,\n  fences: /^ {0,3}(`{3,}|~{3,})([^`~\\n]*)\\n(?:|([\\s\\S]*?)\\n)(?: {0,3}\\1[~`]* *(?:\\n+|$)|$)/,\n  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$)/,\n  heading: /^ {0,3}(#{1,6}) +([^\\n]*?)(?: +#+)? *(?:\\n+|$)/,\n  blockquote: /^( {0,3}> ?(paragraph|[^\\n]*)(?:\\n|$))+/,\n  list: /^( {0,3})(bull) [\\s\\S]+?(?:hr|def|\\n{2,}(?! )(?!\\1bull )\\n*|\\s*$)/,\n  html: '^ {0,3}(?:' // optional indentation\n    + '<(script|pre|style)[\\\\s>][\\\\s\\\\S]*?(?:</\\\\1>[^\\\\n]*\\\\n+|$)' // (1)\n    + '|comment[^\\\\n]*(\\\\n+|$)' // (2)\n    + '|<\\\\?[\\\\s\\\\S]*?\\\\?>\\\\n*' // (3)\n    + '|<![A-Z][\\\\s\\\\S]*?>\\\\n*' // (4)\n    + '|<!\\\\[CDATA\\\\[[\\\\s\\\\S]*?\\\\]\\\\]>\\\\n*' // (5)\n    + '|</?(tag)(?: +|\\\\n|/?>)[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (6)\n    + '|<(?!script|pre|style)([a-z][\\\\w-]*)(?:attribute)*? */?>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (7) open tag\n    + '|</(?!script|pre|style)[a-z][\\\\w-]*\\\\s*>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (7) closing tag\n    + ')',\n  def: /^ {0,3}\\[(label)\\]: *\\n? *<?([^\\s>]+)>?(?:(?: +\\n? *| *\\n *)(title))? *(?:\\n+|$)/,\n  nptable: noop,\n  table: noop,\n  lheading: /^([^\\n]+)\\n {0,3}(=+|-+) *(?:\\n+|$)/,\n  // regex template, placeholders will be replaced according to different paragraph\n  // interruption rules of commonmark and the original markdown spec:\n  _paragraph: /^([^\\n]+(?:\\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\\n]+)*)/,\n  text: /^[^\\n]+/\n};\n\nblock._label = /(?!\\s*\\])(?:\\\\[\\[\\]]|[^\\[\\]])+/;\nblock._title = /(?:\"(?:\\\\\"?|[^\"\\\\])*\"|'[^'\\n]*(?:\\n[^'\\n]+)*\\n?'|\\([^()]*\\))/;\nblock.def = edit(block.def)\n  .replace('label', block._label)\n  .replace('title', block._title)\n  .getRegex();\n\nblock.bullet = /(?:[*+-]|\\d{1,9}\\.)/;\nblock.item = /^( *)(bull) ?[^\\n]*(?:\\n(?!\\1bull ?)[^\\n]*)*/;\nblock.item = edit(block.item, 'gm')\n  .replace(/bull/g, block.bullet)\n  .getRegex();\n\nblock.list = edit(block.list)\n  .replace(/bull/g, block.bullet)\n  .replace('hr', '\\\\n+(?=\\\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\\\* *){3,})(?:\\\\n+|$))')\n  .replace('def', '\\\\n+(?=' + block.def.source + ')')\n  .getRegex();\n\nblock._tag = 'address|article|aside|base|basefont|blockquote|body|caption'\n  + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'\n  + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'\n  + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'\n  + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'\n  + '|track|ul';\nblock._comment = /<!--(?!-?>)[\\s\\S]*?-->/;\nblock.html = edit(block.html, 'i')\n  .replace('comment', block._comment)\n  .replace('tag', block._tag)\n  .replace('attribute', / +[a-zA-Z:_][\\w.:-]*(?: *= *\"[^\"\\n]*\"| *= *'[^'\\n]*'| *= *[^\\s\"'=<>`]+)?/)\n  .getRegex();\n\nblock.paragraph = edit(block._paragraph)\n  .replace('hr', block.hr)\n  .replace('heading', ' {0,3}#{1,6} +')\n  .replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs\n  .replace('blockquote', ' {0,3}>')\n  .replace('fences', ' {0,3}(?:`{3,}|~{3,})[^`\\\\n]*\\\\n')\n  .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt\n  .replace('html', '</?(?:tag)(?: +|\\\\n|/?>)|<(?:script|pre|style|!--)')\n  .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks\n  .getRegex();\n\nblock.blockquote = edit(block.blockquote)\n  .replace('paragraph', block.paragraph)\n  .getRegex();\n\n/**\n * Normal Block Grammar\n */\n\nblock.normal = merge({}, block);\n\n/**\n * GFM Block Grammar\n */\n\nblock.gfm = merge({}, block.normal, {\n  nptable: /^ *([^|\\n ].*\\|.*)\\n *([-:]+ *\\|[-| :]*)(?:\\n((?:.*[^>\\n ].*(?:\\n|$))*)\\n*|$)/,\n  table: /^ *\\|(.+)\\n *\\|?( *[-:]+[-| :]*)(?:\\n((?: *[^>\\n ].*(?:\\n|$))*)\\n*|$)/\n});\n\n/**\n * Pedantic grammar (original John Gruber's loose markdown specification)\n */\n\nblock.pedantic = merge({}, block.normal, {\n  html: edit(\n    '^ *(?:comment *(?:\\\\n|\\\\s*$)'\n    + '|<(tag)[\\\\s\\\\S]+?</\\\\1> *(?:\\\\n{2,}|\\\\s*$)' // closed tag\n    + '|<tag(?:\"[^\"]*\"|\\'[^\\']*\\'|\\\\s[^\\'\"/>\\\\s]*)*?/?> *(?:\\\\n{2,}|\\\\s*$))')\n    .replace('comment', block._comment)\n    .replace(/tag/g, '(?!(?:'\n      + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'\n      + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'\n      + '\\\\b)\\\\w+(?!:|[^\\\\w\\\\s@]*@)\\\\b')\n    .getRegex(),\n  def: /^ *\\[([^\\]]+)\\]: *<?([^\\s>]+)>?(?: +([\"(][^\\n]+[\")]))? *(?:\\n+|$)/,\n  heading: /^ *(#{1,6}) *([^\\n]+?) *(?:#+ *)?(?:\\n+|$)/,\n  fences: noop, // fences not supported\n  paragraph: edit(block.normal._paragraph)\n    .replace('hr', block.hr)\n    .replace('heading', ' *#{1,6} *[^\\n]')\n    .replace('lheading', block.lheading)\n    .replace('blockquote', ' {0,3}>')\n    .replace('|fences', '')\n    .replace('|list', '')\n    .replace('|html', '')\n    .getRegex()\n});\n\n/**\n * Block Lexer\n */\n\nfunction Lexer(options) {\n  this.tokens = [];\n  this.tokens.links = Object.create(null);\n  this.options = options || marked.defaults;\n  this.rules = block.normal;\n\n  if (this.options.pedantic) {\n    this.rules = block.pedantic;\n  } else if (this.options.gfm) {\n    this.rules = block.gfm;\n  }\n}\n\n/**\n * Expose Block Rules\n */\n\nLexer.rules = block;\n\n/**\n * Static Lex Method\n */\n\nLexer.lex = function(src, options) {\n  var lexer = new Lexer(options);\n  return lexer.lex(src);\n};\n\n/**\n * Preprocessing\n */\n\nLexer.prototype.lex = function(src) {\n  src = src\n    .replace(/\\r\\n|\\r/g, '\\n')\n    .replace(/\\t/g, '    ')\n    .replace(/\\u00a0/g, ' ')\n    .replace(/\\u2424/g, '\\n');\n\n  return this.token(src, true);\n};\n\n/**\n * Lexing\n */\n\nLexer.prototype.token = function(src, top) {\n  src = src.replace(/^ +$/gm, '');\n  var next,\n      loose,\n      cap,\n      bull,\n      b,\n      item,\n      listStart,\n      listItems,\n      t,\n      space,\n      i,\n      tag,\n      l,\n      isordered,\n      istask,\n      ischecked;\n\n  while (src) {\n    // newline\n    if (cap = this.rules.newline.exec(src)) {\n      src = src.substring(cap[0].length);\n      if (cap[0].length > 1) {\n        this.tokens.push({\n          type: 'space'\n        });\n      }\n    }\n\n    // code\n    if (cap = this.rules.code.exec(src)) {\n      var lastToken = this.tokens[this.tokens.length - 1];\n      src = src.substring(cap[0].length);\n      // An indented code block cannot interrupt a paragraph.\n      if (lastToken && lastToken.type === 'paragraph') {\n        lastToken.text += '\\n' + cap[0].trimRight();\n      } else {\n        cap = cap[0].replace(/^ {4}/gm, '');\n        this.tokens.push({\n          type: 'code',\n          codeBlockStyle: 'indented',\n          text: !this.options.pedantic\n            ? rtrim(cap, '\\n')\n            : cap\n        });\n      }\n      continue;\n    }\n\n    // fences\n    if (cap = this.rules.fences.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'code',\n        lang: cap[2] ? cap[2].trim() : cap[2],\n        text: cap[3] || ''\n      });\n      continue;\n    }\n\n    // heading\n    if (cap = this.rules.heading.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'heading',\n        depth: cap[1].length,\n        text: cap[2]\n      });\n      continue;\n    }\n\n    // table no leading pipe (gfm)\n    if (cap = this.rules.nptable.exec(src)) {\n      item = {\n        type: 'table',\n        header: splitCells(cap[1].replace(/^ *| *\\| *$/g, '')),\n        align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\n        cells: cap[3] ? cap[3].replace(/\\n$/, '').split('\\n') : []\n      };\n\n      if (item.header.length === item.align.length) {\n        src = src.substring(cap[0].length);\n\n        for (i = 0; i < item.align.length; i++) {\n          if (/^ *-+: *$/.test(item.align[i])) {\n            item.align[i] = 'right';\n          } else if (/^ *:-+: *$/.test(item.align[i])) {\n            item.align[i] = 'center';\n          } else if (/^ *:-+ *$/.test(item.align[i])) {\n            item.align[i] = 'left';\n          } else {\n            item.align[i] = null;\n          }\n        }\n\n        for (i = 0; i < item.cells.length; i++) {\n          item.cells[i] = splitCells(item.cells[i], item.header.length);\n        }\n\n        this.tokens.push(item);\n\n        continue;\n      }\n    }\n\n    // hr\n    if (cap = this.rules.hr.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'hr'\n      });\n      continue;\n    }\n\n    // blockquote\n    if (cap = this.rules.blockquote.exec(src)) {\n      src = src.substring(cap[0].length);\n\n      this.tokens.push({\n        type: 'blockquote_start'\n      });\n\n      cap = cap[0].replace(/^ *> ?/gm, '');\n\n      // Pass `top` to keep the current\n      // \"toplevel\" state. This is exactly\n      // how markdown.pl works.\n      this.token(cap, top);\n\n      this.tokens.push({\n        type: 'blockquote_end'\n      });\n\n      continue;\n    }\n\n    // list\n    if (cap = this.rules.list.exec(src)) {\n      src = src.substring(cap[0].length);\n      bull = cap[2];\n      isordered = bull.length > 1;\n\n      listStart = {\n        type: 'list_start',\n        ordered: isordered,\n        start: isordered ? +bull : '',\n        loose: false\n      };\n\n      this.tokens.push(listStart);\n\n      // Get each top-level item.\n      cap = cap[0].match(this.rules.item);\n\n      listItems = [];\n      next = false;\n      l = cap.length;\n      i = 0;\n\n      for (; i < l; i++) {\n        item = cap[i];\n\n        // Remove the list item's bullet\n        // so it is seen as the next token.\n        space = item.length;\n        item = item.replace(/^ *([*+-]|\\d+\\.) */, '');\n\n        // Outdent whatever the\n        // list item contains. Hacky.\n        if (~item.indexOf('\\n ')) {\n          space -= item.length;\n          item = !this.options.pedantic\n            ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')\n            : item.replace(/^ {1,4}/gm, '');\n        }\n\n        // Determine whether the next list item belongs here.\n        // Backpedal if it does not belong in this list.\n        if (i !== l - 1) {\n          b = block.bullet.exec(cap[i + 1])[0];\n          if (bull.length > 1 ? b.length === 1\n            : (b.length > 1 || (this.options.smartLists && b !== bull))) {\n            src = cap.slice(i + 1).join('\\n') + src;\n            i = l - 1;\n          }\n        }\n\n        // Determine whether item is loose or not.\n        // Use: /(^|\\n)(?! )[^\\n]+\\n\\n(?!\\s*$)/\n        // for discount behavior.\n        loose = next || /\\n\\n(?!\\s*$)/.test(item);\n        if (i !== l - 1) {\n          next = item.charAt(item.length - 1) === '\\n';\n          if (!loose) loose = next;\n        }\n\n        if (loose) {\n          listStart.loose = true;\n        }\n\n        // Check for task list items\n        istask = /^\\[[ xX]\\] /.test(item);\n        ischecked = undefined;\n        if (istask) {\n          ischecked = item[1] !== ' ';\n          item = item.replace(/^\\[[ xX]\\] +/, '');\n        }\n\n        t = {\n          type: 'list_item_start',\n          task: istask,\n          checked: ischecked,\n          loose: loose\n        };\n\n        listItems.push(t);\n        this.tokens.push(t);\n\n        // Recurse.\n        this.token(item, false);\n\n        this.tokens.push({\n          type: 'list_item_end'\n        });\n      }\n\n      if (listStart.loose) {\n        l = listItems.length;\n        i = 0;\n        for (; i < l; i++) {\n          listItems[i].loose = true;\n        }\n      }\n\n      this.tokens.push({\n        type: 'list_end'\n      });\n\n      continue;\n    }\n\n    // html\n    if (cap = this.rules.html.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: this.options.sanitize\n          ? 'paragraph'\n          : 'html',\n        pre: !this.options.sanitizer\n          && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),\n        text: this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]\n      });\n      continue;\n    }\n\n    // def\n    if (top && (cap = this.rules.def.exec(src))) {\n      src = src.substring(cap[0].length);\n      if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);\n      tag = cap[1].toLowerCase().replace(/\\s+/g, ' ');\n      if (!this.tokens.links[tag]) {\n        this.tokens.links[tag] = {\n          href: cap[2],\n          title: cap[3]\n        };\n      }\n      continue;\n    }\n\n    // table (gfm)\n    if (cap = this.rules.table.exec(src)) {\n      item = {\n        type: 'table',\n        header: splitCells(cap[1].replace(/^ *| *\\| *$/g, '')),\n        align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\n        cells: cap[3] ? cap[3].replace(/\\n$/, '').split('\\n') : []\n      };\n\n      if (item.header.length === item.align.length) {\n        src = src.substring(cap[0].length);\n\n        for (i = 0; i < item.align.length; i++) {\n          if (/^ *-+: *$/.test(item.align[i])) {\n            item.align[i] = 'right';\n          } else if (/^ *:-+: *$/.test(item.align[i])) {\n            item.align[i] = 'center';\n          } else if (/^ *:-+ *$/.test(item.align[i])) {\n            item.align[i] = 'left';\n          } else {\n            item.align[i] = null;\n          }\n        }\n\n        for (i = 0; i < item.cells.length; i++) {\n          item.cells[i] = splitCells(\n            item.cells[i].replace(/^ *\\| *| *\\| *$/g, ''),\n            item.header.length);\n        }\n\n        this.tokens.push(item);\n\n        continue;\n      }\n    }\n\n    // lheading\n    if (cap = this.rules.lheading.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'heading',\n        depth: cap[2].charAt(0) === '=' ? 1 : 2,\n        text: cap[1]\n      });\n      continue;\n    }\n\n    // top-level paragraph\n    if (top && (cap = this.rules.paragraph.exec(src))) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'paragraph',\n        text: cap[1].charAt(cap[1].length - 1) === '\\n'\n          ? cap[1].slice(0, -1)\n          : cap[1]\n      });\n      continue;\n    }\n\n    // text\n    if (cap = this.rules.text.exec(src)) {\n      // Top-level should never reach here.\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'text',\n        text: cap[0]\n      });\n      continue;\n    }\n\n    if (src) {\n      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));\n    }\n  }\n\n  return this.tokens;\n};\n\n/**\n * Inline-Level Grammar\n */\n\nvar inline = {\n  escape: /^\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/,\n  autolink: /^<(scheme:[^\\s\\x00-\\x1f<>]*|email)>/,\n  url: noop,\n  tag: '^comment'\n    + '|^</[a-zA-Z][\\\\w:-]*\\\\s*>' // self-closing tag\n    + '|^<[a-zA-Z][\\\\w-]*(?:attribute)*?\\\\s*/?>' // open tag\n    + '|^<\\\\?[\\\\s\\\\S]*?\\\\?>' // processing instruction, e.g. <?php ?>\n    + '|^<![a-zA-Z]+\\\\s[\\\\s\\\\S]*?>' // declaration, e.g. <!DOCTYPE html>\n    + '|^<!\\\\[CDATA\\\\[[\\\\s\\\\S]*?\\\\]\\\\]>', // CDATA section\n  link: /^!?\\[(label)\\]\\(\\s*(href)(?:\\s+(title))?\\s*\\)/,\n  reflink: /^!?\\[(label)\\]\\[(?!\\s*\\])((?:\\\\[\\[\\]]?|[^\\[\\]\\\\])+)\\]/,\n  nolink: /^!?\\[(?!\\s*\\])((?:\\[[^\\[\\]]*\\]|\\\\[\\[\\]]|[^\\[\\]])*)\\](?:\\[\\])?/,\n  strong: /^__([^\\s_])__(?!_)|^\\*\\*([^\\s*])\\*\\*(?!\\*)|^__([^\\s][\\s\\S]*?[^\\s])__(?!_)|^\\*\\*([^\\s][\\s\\S]*?[^\\s])\\*\\*(?!\\*)/,\n  em: /^_([^\\s_])_(?!_)|^\\*([^\\s*<\\[])\\*(?!\\*)|^_([^\\s<][\\s\\S]*?[^\\s_])_(?!_|[^\\spunctuation])|^_([^\\s_<][\\s\\S]*?[^\\s])_(?!_|[^\\spunctuation])|^\\*([^\\s<\"][\\s\\S]*?[^\\s\\*])\\*(?!\\*|[^\\spunctuation])|^\\*([^\\s*\"<\\[][\\s\\S]*?[^\\s])\\*(?!\\*)/,\n  code: /^(`+)([^`]|[^`][\\s\\S]*?[^`])\\1(?!`)/,\n  br: /^( {2,}|\\\\)\\n(?!\\s*$)/,\n  del: noop,\n  text: /^(`+|[^`])(?:[\\s\\S]*?(?:(?=[\\\\<!\\[`*]|\\b_|$)|[^ ](?= {2,}\\n))|(?= {2,}\\n))/\n};\n\n// list of punctuation marks from common mark spec\n// without ` and ] to workaround Rule 17 (inline code blocks/links)\ninline._punctuation = '!\"#$%&\\'()*+,\\\\-./:;<=>?@\\\\[^_{|}~';\ninline.em = edit(inline.em).replace(/punctuation/g, inline._punctuation).getRegex();\n\ninline._escapes = /\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/g;\n\ninline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;\ninline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;\ninline.autolink = edit(inline.autolink)\n  .replace('scheme', inline._scheme)\n  .replace('email', inline._email)\n  .getRegex();\n\ninline._attribute = /\\s+[a-zA-Z:_][\\w.:-]*(?:\\s*=\\s*\"[^\"]*\"|\\s*=\\s*'[^']*'|\\s*=\\s*[^\\s\"'=<>`]+)?/;\n\ninline.tag = edit(inline.tag)\n  .replace('comment', block._comment)\n  .replace('attribute', inline._attribute)\n  .getRegex();\n\ninline._label = /(?:\\[[^\\[\\]]*\\]|\\\\.|`[^`]*`|[^\\[\\]\\\\`])*?/;\ninline._href = /<(?:\\\\[<>]?|[^\\s<>\\\\])*>|[^\\s\\x00-\\x1f]*/;\ninline._title = /\"(?:\\\\\"?|[^\"\\\\])*\"|'(?:\\\\'?|[^'\\\\])*'|\\((?:\\\\\\)?|[^)\\\\])*\\)/;\n\ninline.link = edit(inline.link)\n  .replace('label', inline._label)\n  .replace('href', inline._href)\n  .replace('title', inline._title)\n  .getRegex();\n\ninline.reflink = edit(inline.reflink)\n  .replace('label', inline._label)\n  .getRegex();\n\n/**\n * Normal Inline Grammar\n */\n\ninline.normal = merge({}, inline);\n\n/**\n * Pedantic Inline Grammar\n */\n\ninline.pedantic = merge({}, inline.normal, {\n  strong: /^__(?=\\S)([\\s\\S]*?\\S)__(?!_)|^\\*\\*(?=\\S)([\\s\\S]*?\\S)\\*\\*(?!\\*)/,\n  em: /^_(?=\\S)([\\s\\S]*?\\S)_(?!_)|^\\*(?=\\S)([\\s\\S]*?\\S)\\*(?!\\*)/,\n  link: edit(/^!?\\[(label)\\]\\((.*?)\\)/)\n    .replace('label', inline._label)\n    .getRegex(),\n  reflink: edit(/^!?\\[(label)\\]\\s*\\[([^\\]]*)\\]/)\n    .replace('label', inline._label)\n    .getRegex()\n});\n\n/**\n * GFM Inline Grammar\n */\n\ninline.gfm = merge({}, inline.normal, {\n  escape: edit(inline.escape).replace('])', '~|])').getRegex(),\n  _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,\n  url: /^((?:ftp|https?):\\/\\/|www\\.)(?:[a-zA-Z0-9\\-]+\\.?)+[^\\s<]*|^email/,\n  _backpedal: /(?:[^?!.,:;*_~()&]+|\\([^)]*\\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,\n  del: /^~+(?=\\S)([\\s\\S]*?\\S)~+/,\n  text: /^(`+|[^`])(?:[\\s\\S]*?(?:(?=[\\\\<!\\[`*~]|\\b_|https?:\\/\\/|ftp:\\/\\/|www\\.|$)|[^ ](?= {2,}\\n)|[^a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-](?=[a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-]+@))|(?= {2,}\\n|[a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-]+@))/\n});\n\ninline.gfm.url = edit(inline.gfm.url, 'i')\n  .replace('email', inline.gfm._extended_email)\n  .getRegex();\n/**\n * GFM + Line Breaks Inline Grammar\n */\n\ninline.breaks = merge({}, inline.gfm, {\n  br: edit(inline.br).replace('{2,}', '*').getRegex(),\n  text: edit(inline.gfm.text)\n    .replace('\\\\b_', '\\\\b_| {2,}\\\\n')\n    .replace(/\\{2,\\}/g, '*')\n    .getRegex()\n});\n\n/**\n * Inline Lexer & Compiler\n */\n\nfunction InlineLexer(links, options) {\n  this.options = options || marked.defaults;\n  this.links = links;\n  this.rules = inline.normal;\n  this.renderer = this.options.renderer || new Renderer();\n  this.renderer.options = this.options;\n\n  if (!this.links) {\n    throw new Error('Tokens array requires a `links` property.');\n  }\n\n  if (this.options.pedantic) {\n    this.rules = inline.pedantic;\n  } else if (this.options.gfm) {\n    if (this.options.breaks) {\n      this.rules = inline.breaks;\n    } else {\n      this.rules = inline.gfm;\n    }\n  }\n}\n\n/**\n * Expose Inline Rules\n */\n\nInlineLexer.rules = inline;\n\n/**\n * Static Lexing/Compiling Method\n */\n\nInlineLexer.output = function(src, links, options) {\n  var inline = new InlineLexer(links, options);\n  return inline.output(src);\n};\n\n/**\n * Lexing/Compiling\n */\n\nInlineLexer.prototype.output = function(src) {\n  var out = '',\n      link,\n      text,\n      href,\n      title,\n      cap,\n      prevCapZero;\n\n  while (src) {\n    // escape\n    if (cap = this.rules.escape.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += escape(cap[1]);\n      continue;\n    }\n\n    // tag\n    if (cap = this.rules.tag.exec(src)) {\n      if (!this.inLink && /^<a /i.test(cap[0])) {\n        this.inLink = true;\n      } else if (this.inLink && /^<\\/a>/i.test(cap[0])) {\n        this.inLink = false;\n      }\n      if (!this.inRawBlock && /^<(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n        this.inRawBlock = true;\n      } else if (this.inRawBlock && /^<\\/(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n        this.inRawBlock = false;\n      }\n\n      src = src.substring(cap[0].length);\n      out += this.options.sanitize\n        ? this.options.sanitizer\n          ? this.options.sanitizer(cap[0])\n          : escape(cap[0])\n        : cap[0];\n      continue;\n    }\n\n    // link\n    if (cap = this.rules.link.exec(src)) {\n      var lastParenIndex = findClosingBracket(cap[2], '()');\n      if (lastParenIndex > -1) {\n        var linkLen = 4 + cap[1].length + lastParenIndex;\n        cap[2] = cap[2].substring(0, lastParenIndex);\n        cap[0] = cap[0].substring(0, linkLen).trim();\n        cap[3] = '';\n      }\n      src = src.substring(cap[0].length);\n      this.inLink = true;\n      href = cap[2];\n      if (this.options.pedantic) {\n        link = /^([^'\"]*[^\\s])\\s+(['\"])(.*)\\2/.exec(href);\n\n        if (link) {\n          href = link[1];\n          title = link[3];\n        } else {\n          title = '';\n        }\n      } else {\n        title = cap[3] ? cap[3].slice(1, -1) : '';\n      }\n      href = href.trim().replace(/^<([\\s\\S]*)>$/, '$1');\n      out += this.outputLink(cap, {\n        href: InlineLexer.escapes(href),\n        title: InlineLexer.escapes(title)\n      });\n      this.inLink = false;\n      continue;\n    }\n\n    // reflink, nolink\n    if ((cap = this.rules.reflink.exec(src))\n        || (cap = this.rules.nolink.exec(src))) {\n      src = src.substring(cap[0].length);\n      link = (cap[2] || cap[1]).replace(/\\s+/g, ' ');\n      link = this.links[link.toLowerCase()];\n      if (!link || !link.href) {\n        out += cap[0].charAt(0);\n        src = cap[0].substring(1) + src;\n        continue;\n      }\n      this.inLink = true;\n      out += this.outputLink(cap, link);\n      this.inLink = false;\n      continue;\n    }\n\n    // strong\n    if (cap = this.rules.strong.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));\n      continue;\n    }\n\n    // em\n    if (cap = this.rules.em.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));\n      continue;\n    }\n\n    // code\n    if (cap = this.rules.code.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.codespan(escape(cap[2].trim(), true));\n      continue;\n    }\n\n    // br\n    if (cap = this.rules.br.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.br();\n      continue;\n    }\n\n    // del (gfm)\n    if (cap = this.rules.del.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.del(this.output(cap[1]));\n      continue;\n    }\n\n    // autolink\n    if (cap = this.rules.autolink.exec(src)) {\n      src = src.substring(cap[0].length);\n      if (cap[2] === '@') {\n        text = escape(this.mangle(cap[1]));\n        href = 'mailto:' + text;\n      } else {\n        text = escape(cap[1]);\n        href = text;\n      }\n      out += this.renderer.link(href, null, text);\n      continue;\n    }\n\n    // url (gfm)\n    if (!this.inLink && (cap = this.rules.url.exec(src))) {\n      if (cap[2] === '@') {\n        text = escape(cap[0]);\n        href = 'mailto:' + text;\n      } else {\n        // do extended autolink path validation\n        do {\n          prevCapZero = cap[0];\n          cap[0] = this.rules._backpedal.exec(cap[0])[0];\n        } while (prevCapZero !== cap[0]);\n        text = escape(cap[0]);\n        if (cap[1] === 'www.') {\n          href = 'http://' + text;\n        } else {\n          href = text;\n        }\n      }\n      src = src.substring(cap[0].length);\n      out += this.renderer.link(href, null, text);\n      continue;\n    }\n\n    // text\n    if (cap = this.rules.text.exec(src)) {\n      src = src.substring(cap[0].length);\n      if (this.inRawBlock) {\n        out += this.renderer.text(this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]);\n      } else {\n        out += this.renderer.text(escape(this.smartypants(cap[0])));\n      }\n      continue;\n    }\n\n    if (src) {\n      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));\n    }\n  }\n\n  return out;\n};\n\nInlineLexer.escapes = function(text) {\n  return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;\n};\n\n/**\n * Compile Link\n */\n\nInlineLexer.prototype.outputLink = function(cap, link) {\n  var href = link.href,\n      title = link.title ? escape(link.title) : null;\n\n  return cap[0].charAt(0) !== '!'\n    ? this.renderer.link(href, title, this.output(cap[1]))\n    : this.renderer.image(href, title, escape(cap[1]));\n};\n\n/**\n * Smartypants Transformations\n */\n\nInlineLexer.prototype.smartypants = function(text) {\n  if (!this.options.smartypants) return text;\n  return text\n    // em-dashes\n    .replace(/---/g, '\\u2014')\n    // en-dashes\n    .replace(/--/g, '\\u2013')\n    // opening singles\n    .replace(/(^|[-\\u2014/(\\[{\"\\s])'/g, '$1\\u2018')\n    // closing singles & apostrophes\n    .replace(/'/g, '\\u2019')\n    // opening doubles\n    .replace(/(^|[-\\u2014/(\\[{\\u2018\\s])\"/g, '$1\\u201c')\n    // closing doubles\n    .replace(/\"/g, '\\u201d')\n    // ellipses\n    .replace(/\\.{3}/g, '\\u2026');\n};\n\n/**\n * Mangle Links\n */\n\nInlineLexer.prototype.mangle = function(text) {\n  if (!this.options.mangle) return text;\n  var out = '',\n      l = text.length,\n      i = 0,\n      ch;\n\n  for (; i < l; i++) {\n    ch = text.charCodeAt(i);\n    if (Math.random() > 0.5) {\n      ch = 'x' + ch.toString(16);\n    }\n    out += '&#' + ch + ';';\n  }\n\n  return out;\n};\n\n/**\n * Renderer\n */\n\nfunction Renderer(options) {\n  this.options = options || marked.defaults;\n}\n\nRenderer.prototype.code = function(code, infostring, escaped) {\n  var lang = (infostring || '').match(/\\S*/)[0];\n  if (this.options.highlight) {\n    var out = this.options.highlight(code, lang);\n    if (out != null && out !== code) {\n      escaped = true;\n      code = out;\n    }\n  }\n\n  if (!lang) {\n    return '<pre><code>'\n      + (escaped ? code : escape(code, true))\n      + '</code></pre>';\n  }\n\n  return '<pre><code class=\"'\n    + this.options.langPrefix\n    + escape(lang, true)\n    + '\">'\n    + (escaped ? code : escape(code, true))\n    + '</code></pre>\\n';\n};\n\nRenderer.prototype.blockquote = function(quote) {\n  return '<blockquote>\\n' + quote + '</blockquote>\\n';\n};\n\nRenderer.prototype.html = function(html) {\n  return html;\n};\n\nRenderer.prototype.heading = function(text, level, raw, slugger) {\n  if (this.options.headerIds) {\n    return '<h'\n      + level\n      + ' id=\"'\n      + this.options.headerPrefix\n      + slugger.slug(raw)\n      + '\">'\n      + text\n      + '</h'\n      + level\n      + '>\\n';\n  }\n  // ignore IDs\n  return '<h' + level + '>' + text + '</h' + level + '>\\n';\n};\n\nRenderer.prototype.hr = function() {\n  return this.options.xhtml ? '<hr/>\\n' : '<hr>\\n';\n};\n\nRenderer.prototype.list = function(body, ordered, start) {\n  var type = ordered ? 'ol' : 'ul',\n      startatt = (ordered && start !== 1) ? (' start=\"' + start + '\"') : '';\n  return '<' + type + startatt + '>\\n' + body + '</' + type + '>\\n';\n};\n\nRenderer.prototype.listitem = function(text) {\n  return '<li>' + text + '</li>\\n';\n};\n\nRenderer.prototype.checkbox = function(checked) {\n  return '<input '\n    + (checked ? 'checked=\"\" ' : '')\n    + 'disabled=\"\" type=\"checkbox\"'\n    + (this.options.xhtml ? ' /' : '')\n    + '> ';\n};\n\nRenderer.prototype.paragraph = function(text) {\n  return '<p>' + text + '</p>\\n';\n};\n\nRenderer.prototype.table = function(header, body) {\n  if (body) body = '<tbody>' + body + '</tbody>';\n\n  return '<table>\\n'\n    + '<thead>\\n'\n    + header\n    + '</thead>\\n'\n    + body\n    + '</table>\\n';\n};\n\nRenderer.prototype.tablerow = function(content) {\n  return '<tr>\\n' + content + '</tr>\\n';\n};\n\nRenderer.prototype.tablecell = function(content, flags) {\n  var type = flags.header ? 'th' : 'td';\n  var tag = flags.align\n    ? '<' + type + ' align=\"' + flags.align + '\">'\n    : '<' + type + '>';\n  return tag + content + '</' + type + '>\\n';\n};\n\n// span level renderer\nRenderer.prototype.strong = function(text) {\n  return '<strong>' + text + '</strong>';\n};\n\nRenderer.prototype.em = function(text) {\n  return '<em>' + text + '</em>';\n};\n\nRenderer.prototype.codespan = function(text) {\n  return '<code>' + text + '</code>';\n};\n\nRenderer.prototype.br = function() {\n  return this.options.xhtml ? '<br/>' : '<br>';\n};\n\nRenderer.prototype.del = function(text) {\n  return '<del>' + text + '</del>';\n};\n\nRenderer.prototype.link = function(href, title, text) {\n  href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);\n  if (href === null) {\n    return text;\n  }\n  var out = '<a href=\"' + escape(href) + '\"';\n  if (title) {\n    out += ' title=\"' + title + '\"';\n  }\n  out += '>' + text + '</a>';\n  return out;\n};\n\nRenderer.prototype.image = function(href, title, text) {\n  href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);\n  if (href === null) {\n    return text;\n  }\n\n  var out = '<img src=\"' + href + '\" alt=\"' + text + '\"';\n  if (title) {\n    out += ' title=\"' + title + '\"';\n  }\n  out += this.options.xhtml ? '/>' : '>';\n  return out;\n};\n\nRenderer.prototype.text = function(text) {\n  return text;\n};\n\n/**\n * TextRenderer\n * returns only the textual part of the token\n */\n\nfunction TextRenderer() {}\n\n// no need for block level renderers\n\nTextRenderer.prototype.strong =\nTextRenderer.prototype.em =\nTextRenderer.prototype.codespan =\nTextRenderer.prototype.del =\nTextRenderer.prototype.text = function(text) {\n  return text;\n};\n\nTextRenderer.prototype.link =\nTextRenderer.prototype.image = function(href, title, text) {\n  return '' + text;\n};\n\nTextRenderer.prototype.br = function() {\n  return '';\n};\n\n/**\n * Parsing & Compiling\n */\n\nfunction Parser(options) {\n  this.tokens = [];\n  this.token = null;\n  this.options = options || marked.defaults;\n  this.options.renderer = this.options.renderer || new Renderer();\n  this.renderer = this.options.renderer;\n  this.renderer.options = this.options;\n  this.slugger = new Slugger();\n}\n\n/**\n * Static Parse Method\n */\n\nParser.parse = function(src, options) {\n  var parser = new Parser(options);\n  return parser.parse(src);\n};\n\n/**\n * Parse Loop\n */\n\nParser.prototype.parse = function(src) {\n  this.inline = new InlineLexer(src.links, this.options);\n  // use an InlineLexer with a TextRenderer to extract pure text\n  this.inlineText = new InlineLexer(\n    src.links,\n    merge({}, this.options, { renderer: new TextRenderer() })\n  );\n  this.tokens = src.reverse();\n\n  var out = '';\n  while (this.next()) {\n    out += this.tok();\n  }\n\n  return out;\n};\n\n/**\n * Next Token\n */\n\nParser.prototype.next = function() {\n  this.token = this.tokens.pop();\n  return this.token;\n};\n\n/**\n * Preview Next Token\n */\n\nParser.prototype.peek = function() {\n  return this.tokens[this.tokens.length - 1] || 0;\n};\n\n/**\n * Parse Text Tokens\n */\n\nParser.prototype.parseText = function() {\n  var body = this.token.text;\n\n  while (this.peek().type === 'text') {\n    body += '\\n' + this.next().text;\n  }\n\n  return this.inline.output(body);\n};\n\n/**\n * Parse Current Token\n */\n\nParser.prototype.tok = function() {\n  switch (this.token.type) {\n    case 'space': {\n      return '';\n    }\n    case 'hr': {\n      return this.renderer.hr();\n    }\n    case 'heading': {\n      return this.renderer.heading(\n        this.inline.output(this.token.text),\n        this.token.depth,\n        unescape(this.inlineText.output(this.token.text)),\n        this.slugger);\n    }\n    case 'code': {\n      return this.renderer.code(this.token.text,\n        this.token.lang,\n        this.token.escaped);\n    }\n    case 'table': {\n      var header = '',\n          body = '',\n          i,\n          row,\n          cell,\n          j;\n\n      // header\n      cell = '';\n      for (i = 0; i < this.token.header.length; i++) {\n        cell += this.renderer.tablecell(\n          this.inline.output(this.token.header[i]),\n          { header: true, align: this.token.align[i] }\n        );\n      }\n      header += this.renderer.tablerow(cell);\n\n      for (i = 0; i < this.token.cells.length; i++) {\n        row = this.token.cells[i];\n\n        cell = '';\n        for (j = 0; j < row.length; j++) {\n          cell += this.renderer.tablecell(\n            this.inline.output(row[j]),\n            { header: false, align: this.token.align[j] }\n          );\n        }\n\n        body += this.renderer.tablerow(cell);\n      }\n      return this.renderer.table(header, body);\n    }\n    case 'blockquote_start': {\n      body = '';\n\n      while (this.next().type !== 'blockquote_end') {\n        body += this.tok();\n      }\n\n      return this.renderer.blockquote(body);\n    }\n    case 'list_start': {\n      body = '';\n      var ordered = this.token.ordered,\n          start = this.token.start;\n\n      while (this.next().type !== 'list_end') {\n        body += this.tok();\n      }\n\n      return this.renderer.list(body, ordered, start);\n    }\n    case 'list_item_start': {\n      body = '';\n      var loose = this.token.loose;\n      var checked = this.token.checked;\n      var task = this.token.task;\n\n      if (this.token.task) {\n        body += this.renderer.checkbox(checked);\n      }\n\n      while (this.next().type !== 'list_item_end') {\n        body += !loose && this.token.type === 'text'\n          ? this.parseText()\n          : this.tok();\n      }\n      return this.renderer.listitem(body, task, checked);\n    }\n    case 'html': {\n      // TODO parse inline content if parameter markdown=1\n      return this.renderer.html(this.token.text);\n    }\n    case 'paragraph': {\n      return this.renderer.paragraph(this.inline.output(this.token.text));\n    }\n    case 'text': {\n      return this.renderer.paragraph(this.parseText());\n    }\n    default: {\n      var errMsg = 'Token with \"' + this.token.type + '\" type was not found.';\n      if (this.options.silent) {\n        console.log(errMsg);\n      } else {\n        throw new Error(errMsg);\n      }\n    }\n  }\n};\n\n/**\n * Slugger generates header id\n */\n\nfunction Slugger() {\n  this.seen = {};\n}\n\n/**\n * Convert string to unique id\n */\n\nSlugger.prototype.slug = function(value) {\n  var slug = value\n    .toLowerCase()\n    .trim()\n    .replace(/[\\u2000-\\u206F\\u2E00-\\u2E7F\\\\'!\"#$%&()*+,./:;<=>?@[\\]^`{|}~]/g, '')\n    .replace(/\\s/g, '-');\n\n  if (this.seen.hasOwnProperty(slug)) {\n    var originalSlug = slug;\n    do {\n      this.seen[originalSlug]++;\n      slug = originalSlug + '-' + this.seen[originalSlug];\n    } while (this.seen.hasOwnProperty(slug));\n  }\n  this.seen[slug] = 0;\n\n  return slug;\n};\n\n/**\n * Helpers\n */\n\nfunction escape(html, encode) {\n  if (encode) {\n    if (escape.escapeTest.test(html)) {\n      return html.replace(escape.escapeReplace, function(ch) { return escape.replacements[ch]; });\n    }\n  } else {\n    if (escape.escapeTestNoEncode.test(html)) {\n      return html.replace(escape.escapeReplaceNoEncode, function(ch) { return escape.replacements[ch]; });\n    }\n  }\n\n  return html;\n}\n\nescape.escapeTest = /[&<>\"']/;\nescape.escapeReplace = /[&<>\"']/g;\nescape.replacements = {\n  '&': '&amp;',\n  '<': '&lt;',\n  '>': '&gt;',\n  '\"': '&quot;',\n  \"'\": '&#39;'\n};\n\nescape.escapeTestNoEncode = /[<>\"']|&(?!#?\\w+;)/;\nescape.escapeReplaceNoEncode = /[<>\"']|&(?!#?\\w+;)/g;\n\nfunction unescape(html) {\n  // explicitly match decimal, hex, and named HTML entities\n  return html.replace(/&(#(?:\\d+)|(?:#x[0-9A-Fa-f]+)|(?:\\w+));?/ig, function(_, n) {\n    n = n.toLowerCase();\n    if (n === 'colon') return ':';\n    if (n.charAt(0) === '#') {\n      return n.charAt(1) === 'x'\n        ? String.fromCharCode(parseInt(n.substring(2), 16))\n        : String.fromCharCode(+n.substring(1));\n    }\n    return '';\n  });\n}\n\nfunction edit(regex, opt) {\n  regex = regex.source || regex;\n  opt = opt || '';\n  return {\n    replace: function(name, val) {\n      val = val.source || val;\n      val = val.replace(/(^|[^\\[])\\^/g, '$1');\n      regex = regex.replace(name, val);\n      return this;\n    },\n    getRegex: function() {\n      return new RegExp(regex, opt);\n    }\n  };\n}\n\nfunction cleanUrl(sanitize, base, href) {\n  if (sanitize) {\n    try {\n      var prot = decodeURIComponent(unescape(href))\n        .replace(/[^\\w:]/g, '')\n        .toLowerCase();\n    } catch (e) {\n      return null;\n    }\n    if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {\n      return null;\n    }\n  }\n  if (base && !originIndependentUrl.test(href)) {\n    href = resolveUrl(base, href);\n  }\n  try {\n    href = encodeURI(href).replace(/%25/g, '%');\n  } catch (e) {\n    return null;\n  }\n  return href;\n}\n\nfunction resolveUrl(base, href) {\n  if (!baseUrls[' ' + base]) {\n    // we can ignore everything in base after the last slash of its path component,\n    // but we might need to add _that_\n    // https://tools.ietf.org/html/rfc3986#section-3\n    if (/^[^:]+:\\/*[^/]*$/.test(base)) {\n      baseUrls[' ' + base] = base + '/';\n    } else {\n      baseUrls[' ' + base] = rtrim(base, '/', true);\n    }\n  }\n  base = baseUrls[' ' + base];\n\n  if (href.slice(0, 2) === '//') {\n    return base.replace(/:[\\s\\S]*/, ':') + href;\n  } else if (href.charAt(0) === '/') {\n    return base.replace(/(:\\/*[^/]*)[\\s\\S]*/, '$1') + href;\n  } else {\n    return base + href;\n  }\n}\nvar baseUrls = {};\nvar originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;\n\nfunction noop() {}\nnoop.exec = noop;\n\nfunction merge(obj) {\n  var i = 1,\n      target,\n      key;\n\n  for (; i < arguments.length; i++) {\n    target = arguments[i];\n    for (key in target) {\n      if (Object.prototype.hasOwnProperty.call(target, key)) {\n        obj[key] = target[key];\n      }\n    }\n  }\n\n  return obj;\n}\n\nfunction splitCells(tableRow, count) {\n  // ensure that every cell-delimiting pipe has a space\n  // before it to distinguish it from an escaped pipe\n  var row = tableRow.replace(/\\|/g, function(match, offset, str) {\n        var escaped = false,\n            curr = offset;\n        while (--curr >= 0 && str[curr] === '\\\\') escaped = !escaped;\n        if (escaped) {\n          // odd number of slashes means | is escaped\n          // so we leave it alone\n          return '|';\n        } else {\n          // add space before unescaped |\n          return ' |';\n        }\n      }),\n      cells = row.split(/ \\|/),\n      i = 0;\n\n  if (cells.length > count) {\n    cells.splice(count);\n  } else {\n    while (cells.length < count) cells.push('');\n  }\n\n  for (; i < cells.length; i++) {\n    // leading or trailing whitespace is ignored per the gfm spec\n    cells[i] = cells[i].trim().replace(/\\\\\\|/g, '|');\n  }\n  return cells;\n}\n\n// Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').\n// /c*$/ is vulnerable to REDOS.\n// invert: Remove suffix of non-c chars instead. Default falsey.\nfunction rtrim(str, c, invert) {\n  if (str.length === 0) {\n    return '';\n  }\n\n  // Length of suffix matching the invert condition.\n  var suffLen = 0;\n\n  // Step left until we fail to match the invert condition.\n  while (suffLen < str.length) {\n    var currChar = str.charAt(str.length - suffLen - 1);\n    if (currChar === c && !invert) {\n      suffLen++;\n    } else if (currChar !== c && invert) {\n      suffLen++;\n    } else {\n      break;\n    }\n  }\n\n  return str.substr(0, str.length - suffLen);\n}\n\nfunction findClosingBracket(str, b) {\n  if (str.indexOf(b[1]) === -1) {\n    return -1;\n  }\n  var level = 0;\n  for (var i = 0; i < str.length; i++) {\n    if (str[i] === '\\\\') {\n      i++;\n    } else if (str[i] === b[0]) {\n      level++;\n    } else if (str[i] === b[1]) {\n      level--;\n      if (level < 0) {\n        return i;\n      }\n    }\n  }\n  return -1;\n}\n\nfunction checkSanitizeDeprecation(opt) {\n  if (opt && opt.sanitize && !opt.silent) {\n    console.warn('marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. Read more here: https://marked.js.org/#/USING_ADVANCED.md#options');\n  }\n}\n\n/**\n * Marked\n */\n\nfunction marked(src, opt, callback) {\n  // throw error in case of non string input\n  if (typeof src === 'undefined' || src === null) {\n    throw new Error('marked(): input parameter is undefined or null');\n  }\n  if (typeof src !== 'string') {\n    throw new Error('marked(): input parameter is of type '\n      + Object.prototype.toString.call(src) + ', string expected');\n  }\n\n  if (callback || typeof opt === 'function') {\n    if (!callback) {\n      callback = opt;\n      opt = null;\n    }\n\n    opt = merge({}, marked.defaults, opt || {});\n    checkSanitizeDeprecation(opt);\n\n    var highlight = opt.highlight,\n        tokens,\n        pending,\n        i = 0;\n\n    try {\n      tokens = Lexer.lex(src, opt);\n    } catch (e) {\n      return callback(e);\n    }\n\n    pending = tokens.length;\n\n    var done = function(err) {\n      if (err) {\n        opt.highlight = highlight;\n        return callback(err);\n      }\n\n      var out;\n\n      try {\n        out = Parser.parse(tokens, opt);\n      } catch (e) {\n        err = e;\n      }\n\n      opt.highlight = highlight;\n\n      return err\n        ? callback(err)\n        : callback(null, out);\n    };\n\n    if (!highlight || highlight.length < 3) {\n      return done();\n    }\n\n    delete opt.highlight;\n\n    if (!pending) return done();\n\n    for (; i < tokens.length; i++) {\n      (function(token) {\n        if (token.type !== 'code') {\n          return --pending || done();\n        }\n        return highlight(token.text, token.lang, function(err, code) {\n          if (err) return done(err);\n          if (code == null || code === token.text) {\n            return --pending || done();\n          }\n          token.text = code;\n          token.escaped = true;\n          --pending || done();\n        });\n      })(tokens[i]);\n    }\n\n    return;\n  }\n  try {\n    if (opt) opt = merge({}, marked.defaults, opt);\n    checkSanitizeDeprecation(opt);\n    return Parser.parse(Lexer.lex(src, opt), opt);\n  } catch (e) {\n    e.message += '\\nPlease report this to https://github.com/markedjs/marked.';\n    if ((opt || marked.defaults).silent) {\n      return '<p>An error occurred:</p><pre>'\n        + escape(e.message + '', true)\n        + '</pre>';\n    }\n    throw e;\n  }\n}\n\n/**\n * Options\n */\n\nmarked.options =\nmarked.setOptions = function(opt) {\n  merge(marked.defaults, opt);\n  return marked;\n};\n\nmarked.getDefaults = function() {\n  return {\n    baseUrl: null,\n    breaks: false,\n    gfm: true,\n    headerIds: true,\n    headerPrefix: '',\n    highlight: null,\n    langPrefix: 'language-',\n    mangle: true,\n    pedantic: false,\n    renderer: new Renderer(),\n    sanitize: false,\n    sanitizer: null,\n    silent: false,\n    smartLists: false,\n    smartypants: false,\n    xhtml: false\n  };\n};\n\nmarked.defaults = marked.getDefaults();\n\n/**\n * Expose\n */\n\nmarked.Parser = Parser;\nmarked.parser = Parser.parse;\n\nmarked.Renderer = Renderer;\nmarked.TextRenderer = TextRenderer;\n\nmarked.Lexer = Lexer;\nmarked.lexer = Lexer.lex;\n\nmarked.InlineLexer = InlineLexer;\nmarked.inlineLexer = InlineLexer.output;\n\nmarked.Slugger = Slugger;\n\nmarked.parse = marked;\n\nif (typeof module !== 'undefined' && typeof exports === 'object') {\n  module.exports = marked;\n} else if (typeof define === 'function' && define.amd) {\n  define(function() { return marked; });\n} else {\n  root.marked = marked;\n}\n})(this || (typeof window !== 'undefined' ? window : global));\n","var render = function() {\n  var _vm = this\n  var _h = _vm.$createElement\n  var _c = _vm._self._c || _h\n  return _c(\n    \"div\",\n    {\n      class: [\n        \"v-md-container\",\n        _vm.css,\n        { \"v-md-auto-resize\": _vm.height == \"auto\" }\n      ],\n      attrs: { id: _vm.uid(\"container\") }\n    },\n    [\n      _c(\n        \"div\",\n        { staticClass: \"v-md-toolbar\", attrs: { id: _vm.uid(\"toolbar\") } },\n        _vm._l(_vm.toolbars, function(group) {\n          return _c(\n            \"div\",\n            { staticClass: \"btn-group mr-3\", attrs: { role: \"group\" } },\n            _vm._l(group, function(i) {\n              return _c(\n                \"button\",\n                {\n                  class: [_vm.buttonClass, { ready: i.ready }],\n                  attrs: { type: \"button\", id: _vm.uid(i.id), title: i.title },\n                  on: {\n                    click: function($event) {\n                      return _vm.command(i.cmd)\n                    }\n                  }\n                },\n                [\n                  _c(\"i\", {\n                    class: i.className,\n                    attrs: { \"aria-hidden\": \"true\" }\n                  })\n                ]\n              )\n            }),\n            0\n          )\n        }),\n        0\n      ),\n      _vm._v(\" \"),\n      _c(\"div\", { staticClass: \"v-md-wrapper\" }, [\n        _c(\"textarea\", {\n          directives: [\n            {\n              name: \"model\",\n              rawName: \"v-model\",\n              value: _vm.value,\n              expression: \"value\"\n            }\n          ],\n          style: _vm.styles,\n          attrs: { id: _vm.uid(\"input\"), name: _vm.name },\n          domProps: { value: _vm.value },\n          on: {\n            input: function($event) {\n              if ($event.target.composing) {\n                return\n              }\n              _vm.value = $event.target.value\n            }\n          }\n        }),\n        _vm._v(\" \"),\n        _vm.preview\n          ? _c(\"div\", {\n              staticClass: \"v-md-preview\",\n              attrs: { id: _vm.uid(\"html-preview\") },\n              domProps: { innerHTML: _vm._s(_vm.html) }\n            })\n          : _vm._e()\n      ])\n    ]\n  )\n}\nvar staticRenderFns = []\nrender._withStripped = true\n\nexport { render, staticRenderFns }","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functioal component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? 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\ No newline at end of file
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         default: '300px'\n            },\n            toolbar: {\n                type: String,\n                default: 'clean redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen'\n            },\n\n\n            extend: {\n                type: Object\n\n            },\n            buttons: {\n                type: Object,\n                default: function () {\n\n                    return {\n\n                        \"clean\": {\n                            cmd: \"clean\",\n                            ico: \"fas fa-remove-format mdi mdi-format-clear\",\n                            title: \"Html to markdown\",\n                            hotkey: 'Shift-Alt-F'\n                        },\n\n                        \"undo\": {\n                            cmd: \"undo\",\n                            ico: \"fas fa-undo mdi mdi-undo-variant\",\n                            title: \"Undo\",\n                            hotkey: 'Ctrl-Z'\n                        },\n\n                        \"redo\": {\n                            cmd: \"redo\",\n                            ico: \"fas fa-redo mdi mdi-redo-variant\",\n                            title: \"Redo\",\n                            hotkey: 'Ctrl-Y'\n                        },\n\n                        \"bullist\": {\n                            cmd: \"bullist\",\n                            ico: \"fas fa-list-ul mdi mdi-format-list-bulleted\",\n                            title: \"Generic List\",\n\n                        },\n                        \"numlist\": {\n                            cmd: \"numlist\",\n                            ico: \"fas fa-list-ol mdi mdi-format-list-numbered\",\n                            title: \"Numbered List\"\n                        },\n\n                        'bold': {\n                            title: 'Bold',\n                            ico: 'fas fa-bold mdi mdi-format-bold',\n                            cmd: 'bold',\n                            hotkey: 'Ctrl-B'\n                        },\n\n                        'italic': {\n                            title: 'Italic',\n                            ico: \"fas fa-italic mdi mdi-format-italic\",\n                            cmd: 'italic',\n                            hotkey: 'Ctrl-I'\n                        },\n\n                        \"strikethrough\": {\n                            cmd: \"strikethrough\",\n                            ico: \"fas fa-strikethrough mdi mdi-format-strikethrough\",\n                            title: \"Strikethrough\"\n                        },\n\n                        'heading': {\n                            title: 'Heading',\n                            ico: \"fas fa-heading mdi mdi-format-header-3\",\n                            cmd: 'heading',\n                            hotkey: 'Ctrl-H'\n                        },\n\n                        'code': {\n                            title: 'Code',\n                            ico: \"fas fa-code mdi mdi-code-tags\",\n                            cmd: 'code',\n                            hotkey: 'Ctrl-X'\n                        },\n                        'quote': {\n                            title: 'Quote',\n                            ico: \"fas fa-quote-left mdi mdi-format-quote-open\",\n                            cmd: 'quote',\n                            hotkey: 'Ctrl-Q'\n                        },\n                        'link': {\n                            title: 'Link',\n                            ico: \"fas fa-link mdi mdi-link\",\n                            cmd: 'link',\n                            hotkey: 'Ctrl-K'\n                        },\n                        'image': {\n                            title: 'Image',\n                            ico: \"fas fa-image mdi mdi-image\",\n                            cmd: 'image',\n                            hotkey: 'Ctrl-P'\n                        },\n                        \"fullscreen\": {\n                            cmd: \"fullscreen\",\n                            ico: \"fas fa-expand mdi mdi-fullscreen\",\n                            title: \"Toggle Fullscreen\",\n                            hotkey: 'F11',\n                            ready: true\n                        },\n                        \"preview\": {\n                            cmd: \"preview\",\n                            ico: \"fas fa-eye mdi mdi-eye\",\n                            title: \"Toggle Preview\",\n                            hotkey: 'Ctrl-P',\n                            ready: true\n                        }\n\n\n                    }\n\n                }\n            },\n\n\n            theme: {\n                type: String,\n                default: 'outline-secondary'\n            },\n\n            value: {\n                type: String,\n                default: '',\n                required: false\n            },\n\n            options: {\n                type: Object,\n                default: function () {\n                    return {\n\n                    }\n                }\n            },\n        },\n\n        data() {\n            return {\n\n                editor: null,\n                preview: false,\n                fullScreen: false,\n                html: '',\n                toolbars: [],                \n\n            }\n        },\n\n        computed: {\n            styles() {\n                return {\n                    width: isNaN(this.width) ? this.width : this.width + '%',\n                    height: isNaN(this.height) ? this.height : this.height + '%'\n                }\n            },\n\n        },\n\n        watch: {\n            value(val) {\n                if (val != this.editor.getValue()) {\n                    this.editor.setValue(val);\n                }\n            }\n        },\n\n        methods: {\n            isEmpty: function (s) {\n                return s === null || s === undefined ? true : /^[\\s\\xa0]*$/.test(s);\n            },\n            isUrl: function (s) {\n                return this.isEmpty(s) ? false : s.match(/((http(s)?):\\/\\/[\\w\\.\\/\\-=?#]+)/gi);\n            },\n            format() {\n                var a = arguments[0];\n                for (var i = 1; i <= arguments.length; i++) {\n                    a = a.replace(/%[a-z]/, arguments[i]);\n                }\n                return a; // Make chainable\n\n            },\n\n\n            _toggleBlock(type, start, end) {\n\n                end = this.isEmpty(end) ? start : end;\n                var ed = this.editor;\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var text;\n                var stat = this.state();\n\n                if (stat[type]) {\n\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    if (type == \"bold\") {\n                        start = start.replace(/(\\*\\*|__)(?![\\s\\S]*(\\*\\*|__))/, \"\");\n                        end = end.replace(/(\\*\\*|__)/, \"\");\n                    } else if (type == \"italic\") {\n                        start = start.replace(/(\\*|_)(?![\\s\\S]*(\\*|_))/, \"\");\n                        end = end.replace(/(\\*|_)/, \"\");\n                    } else if (type == \"strikethrough\") {\n                        start = start.replace(/(\\*\\*|~~)(?![\\s\\S]*(\\*\\*|~~))/, \"\");\n                        end = end.replace(/(\\*\\*|~~)/, \"\");\n                    }\n                    ed.replaceRange(start + end, {\n                        line: startPoint.line,\n                        ch: 0\n                    }, {\n                        line: startPoint.line,\n                        ch: 99999999999999\n                    });\n\n                    if (type == \"bold\" || type == \"strikethrough\") {\n                        startPoint.ch -= 2;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 2;\n                        }\n                    } else if (type == \"italic\") {\n                        startPoint.ch -= 1;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 1;\n                        }\n                    }\n                } else {\n\n                    text = ed.getSelection();\n                    if (type == \"bold\") {\n                        text = text.split(\"**\").join(\"\");\n                        text = text.split(\"__\").join(\"\");\n                    } else if (type == \"italic\") {\n                        text = text.split(\"*\").join(\"\");\n                        text = text.split(\"_\").join(\"\");\n                    } else if (type == \"strikethrough\") {\n                        text = text.split(\"~~\").join(\"\");\n                    }\n                    ed.replaceSelection(start + text + end);\n\n                    startPoint.ch += start.length;\n                    endPoint.ch = startPoint.ch + text.length;\n                }\n\n                // ed.setSelection(startPoint, endPoint);\n            },\n\n            _toggleLine(name) {\n                var ed = this.editor;\n                var stat = this.state();\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var repl = {\n                    \"quote\": /^(\\s*)\\>\\s+/,\n                    \"bullist\": /^(\\s*)(\\*|\\-|\\+)\\s+/,\n                    \"numlist\": /^(\\s*)\\d+\\.\\s+/\n                };\n                var map = {\n                    \"quote\": \"> \",\n                    \"bullist\": \"* \",\n                    \"numlist\": \"1. \"\n                };\n                for (var i = startPoint.line; i <= endPoint.line; i++) {\n                    (function (i) {\n                        var text = ed.getLine(i);\n                        if (stat[name]) {\n                            text = text.replace(repl[name], \"$1\");\n                        } else {\n                            text = map[name] + text;\n                        }\n                        ed.replaceRange(text, {\n                            line: i, ch: 0\n                        }, {\n                            line: i, ch: 99999999999999\n                        });\n                    })(i);\n                }\n\n            },\n\n            state(pos) {\n                pos = pos || this.editor.getCursor(\"start\");\n                var stat = this.editor.getTokenAt(pos);\n                if (!stat.type) return {};\n\n                var types = stat.type.split(\" \");\n\n                // console.log(types);\n\n                var ret = {},\n                    data, text;\n                for (var i = 0; i < types.length; i++) {\n                    data = types[i];\n                    if (data === \"strong\") {\n                        ret.bold = true;\n                    } else if (data === \"variable-2\") {\n                        text = this.editor.getLine(pos.line);\n                        if (/^\\s*\\d+\\.\\s/.test(text)) {\n                            ret[\"numlist\"] = true;\n                        } else {\n                            ret[\"bullist\"] = true;\n                        }\n                    } else if (data === \"atom\") {\n                        ret.quote = true;\n                    } else if (data === \"em\") {\n                        ret.italic = true;\n                    } else if (data === \"quote\") {\n                        ret.quote = true;\n                    } else if (data === \"strikethrough\") {\n                        ret.strikethrough = true;\n                    } else if (data === \"comment\") {\n                        ret.code = true;\n                    } else if (data === \"link\" || data === \"url\") {\n                        ret.link = true;\n                    } else if (data === \"image\") {\n                        ret.image = true;\n                    } else if (data.match(/^header(\\-[1-6])?$/)) {\n                        ret[data.replace(\"header\", \"heading\")] = true;\n                    }\n                }\n                return ret;\n            },\n\n            _replaceSelection(active, startEnd, val) {\n                var ed = this.editor;\n\n                var text;\n                var start = startEnd[0];\n                var end = startEnd[1];\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                if (val) {\n                    Object.keys(val).forEach(key => {\n                        start = start.replace('#' + key + '#', val[key]);\n                        end = end.replace('#' + key + '#', val[key]);\n                    });\n                }\n\n                if (active) {\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    ed.replaceRange(start + end, { line: startPoint.line, ch: 0 });\n                } else {\n\n                    ed.replaceSelection(start + end);\n                    startPoint.ch += start.length;\n                    if (startPoint !== endPoint) {\n                        endPoint.ch += start.length;\n                    }\n                }\n                //ed.setSelection(startPoint, endPoint);\n\n\n            },\n\n            drawImage(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.image, [\"![#title#](\", '#url# \"#title#\")'], obj);\n            },\n\n            drawLink(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.link, ['[#title#]', '(#url# \"#title#\")'], obj);\n            },\n\n            command(key) {\n\n                var ed = this.editor;\n                var text = ed.getSelection();\n\n                this.$root.$emit('markdown-editor:' + key, this);\n\n                switch (key) {\n                    case 'undo':\n                        ed.undo();\n                        break;\n\n                    case 'redo':\n                        ed.redo();\n                        break;\n\n                    case 'bold':\n                        this._toggleBlock('bold', '**');\n                        break;\n\n                    case 'italic':\n                        this._toggleBlock('italic', '*');\n                        break;\n\n                    case 'strikethrough':\n                        this._toggleBlock('strikethrough', '~~');\n                        break;\n\n                    case 'code':\n                        this._toggleBlock('code', '```');\n                        break;\n\n\n                    case 'heading':\n                        ed.replaceSelection('\\n### ' + text);\n                        break;\n\n\n                    case 'image':\n\n                        var url = prompt(\"Please enter image url\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : \"This is image title\";\n                            this.drawImage({ title: title, url: url });\n                        }\n                        break;\n\n                    case 'link':\n\n                        var url = prompt(\"Please enter link\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : url;\n                            this.drawLink({ title: title, url: url });\n\n                        }\n\n                        break;\n\n                    case 'quote':\n                        this._toggleLine('quote');\n                        break;\n\n                    case 'numlist':\n                        this._toggleLine('numlist');\n                        break;\n\n                    case 'bullist':\n                        this._toggleLine('bullist');\n                        break;\n\n\n                    case 'preview':\n\n                        this.html = Marked(ed.getValue(), { breaks: true });\n                        this.preview = !this.preview;\n\n                        break;\n\n                    case 'fullscreen':\n                        this.fullScreen = !this.fullScreen;\n                        ed.setOption(\"fullScreen\", !ed.getOption(\"fullScreen\"));\n                        break;\n\n                    case 'clean':\n                        ed.replaceSelection(Markdown.parse(text));\n                        break;\n\n                }\n\n            },\n\n            build() {\n\n                if (this.__rendered) return;\n\n                var buttons = Object.assign({}, this.buttons, this.extend);                \n\n                var shortcuts = {};\n\n                this.toolbar.split('|').forEach((t, i) => {\n                    var group = [];\n                    t.toLowerCase().split(/(\\s)/).forEach((b) => {\n\n                        if (!this.isEmpty(b)) {\n\n                            var btn = buttons[b];\n                            if (!this.isEmpty(btn.hotkey)) {\n                                shortcuts[btn.hotkey] = () => this.command(btn.cmd);\n                            }\n                            group.push(btn);\n                        }\n                    });\n\n                    if (group.length > 0)\n                        this.toolbars.push(group);\n\n                });\n\n                \n                var o = Object.assign({ mode: 'markdown', extraKeys: shortcuts }, this.options);\n\n                var ed = this.editor = CodeMirror.fromTextArea(document.getElementById(this.id), o);\n                ed.setValue(this.value);\n                ed.on(\"change\", (ed) => {\n                    this.$emit('input', ed.getValue());\n                });\n\n                this.__rendered = true;\n\n            }\n        },\n        mounted() {\n            this.build();\n        },\n\n      \n        destroyed() {\n\n            this.editor = null;\n        }\n\n    }\n\n</script>","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n\n  CodeMirror.defineOption(\"fullScreen\", false, function(cm, val, old) {\n    if (old == CodeMirror.Init) old = false;\n    if (!old == !val) return;\n    if (val) setFullscreen(cm);\n    else setNormal(cm);\n  });\n\n  function setFullscreen(cm) {\n    var wrap = cm.getWrapperElement();\n    cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,\n                                  width: wrap.style.width, height: wrap.style.height};\n    wrap.style.width = \"\";\n    wrap.style.height = \"auto\";\n    wrap.className += \" CodeMirror-fullscreen\";\n    document.documentElement.style.overflow = \"hidden\";\n    cm.refresh();\n  }\n\n  function setNormal(cm) {\n    var wrap = cm.getWrapperElement();\n    wrap.className = wrap.className.replace(/\\s*CodeMirror-fullscreen\\b/, \"\");\n    document.documentElement.style.overflow = \"\";\n    var info = cm.state.fullScreenRestore;\n    wrap.style.width = info.width; wrap.style.height = info.height;\n    window.scrollTo(info.scrollLeft, info.scrollTop);\n    cm.refresh();\n  }\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  CodeMirror.defineOption(\"placeholder\", \"\", function(cm, val, old) {\n    var prev = old && old != CodeMirror.Init;\n    if (val && !prev) {\n      cm.on(\"blur\", onBlur);\n      cm.on(\"change\", onChange);\n      cm.on(\"swapDoc\", onChange);\n      onChange(cm);\n    } else if (!val && prev) {\n      cm.off(\"blur\", onBlur);\n      cm.off(\"change\", onChange);\n      cm.off(\"swapDoc\", onChange);\n      clearPlaceholder(cm);\n      var wrapper = cm.getWrapperElement();\n      wrapper.className = wrapper.className.replace(\" CodeMirror-empty\", \"\");\n    }\n\n    if (val && !cm.hasFocus()) onBlur(cm);\n  });\n\n  function clearPlaceholder(cm) {\n    if (cm.state.placeholder) {\n      cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);\n      cm.state.placeholder = null;\n    }\n  }\n  function setPlaceholder(cm) {\n    clearPlaceholder(cm);\n    var elt = cm.state.placeholder = document.createElement(\"pre\");\n    elt.style.cssText = \"height: 0; overflow: visible\";\n    elt.style.direction = cm.getOption(\"direction\");\n    elt.className = \"CodeMirror-placeholder CodeMirror-line-like\";\n    var placeHolder = cm.getOption(\"placeholder\")\n    if (typeof placeHolder == \"string\") placeHolder = document.createTextNode(placeHolder)\n    elt.appendChild(placeHolder)\n    cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);\n  }\n\n  function onBlur(cm) {\n    if (isEmpty(cm)) setPlaceholder(cm);\n  }\n  function onChange(cm) {\n    var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);\n    wrapper.className = wrapper.className.replace(\" CodeMirror-empty\", \"\") + (empty ? \" CodeMirror-empty\" : \"\");\n\n    if (empty) setPlaceholder(cm);\n    else clearPlaceholder(cm);\n  }\n\n  function isEmpty(cm) {\n    return (cm.lineCount() === 1) && (cm.getLine(0) === \"\");\n  }\n});\n","// extracted by mini-css-extract-plugin","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n// This is CodeMirror (https://codemirror.net), a code editor\n// implemented in JavaScript on top of the browser's DOM.\n//\n// You can find some technical background for some of the code below\n// at http://marijnhaverbeke.nl/blog/#cm-internals .\n\n(function (global, factory) {\n  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n  typeof define === 'function' && define.amd ? define(factory) :\n  (global = global || self, global.CodeMirror = factory());\n}(this, (function () { 'use strict';\n\n  // Kludges for bugs and behavior differences that can't be feature\n  // detected are enabled based on userAgent etc sniffing.\n  var userAgent = navigator.userAgent;\n  var platform = navigator.platform;\n\n  var gecko = /gecko\\/\\d/i.test(userAgent);\n  var ie_upto10 = /MSIE \\d/.test(userAgent);\n  var ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(userAgent);\n  var edge = /Edge\\/(\\d+)/.exec(userAgent);\n  var ie = ie_upto10 || ie_11up || edge;\n  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);\n  var webkit = !edge && /WebKit\\//.test(userAgent);\n  var qtwebkit = webkit && /Qt\\/\\d+\\.\\d+/.test(userAgent);\n  var chrome = !edge && /Chrome\\//.test(userAgent);\n  var presto = /Opera\\//.test(userAgent);\n  var safari = /Apple Computer/.test(navigator.vendor);\n  var mac_geMountainLion = /Mac OS X 1\\d\\D([8-9]|\\d\\d)\\D/.test(userAgent);\n  var phantom = /PhantomJS/.test(userAgent);\n\n  var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\\/\\w+/.test(userAgent);\n  var android = /Android/.test(userAgent);\n  // This is woefully incomplete. Suggestions for alternative methods welcome.\n  var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);\n  var mac = ios || /Mac/.test(platform);\n  var chromeOS = /\\bCrOS\\b/.test(userAgent);\n  var windows = /win/i.test(platform);\n\n  var presto_version = presto && userAgent.match(/Version\\/(\\d*\\.\\d*)/);\n  if (presto_version) { presto_version = Number(presto_version[1]); }\n  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }\n  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X\n  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));\n  var captureRightClick = gecko || (ie && ie_version >= 9);\n\n  function classTest(cls) { return new RegExp(\"(^|\\\\s)\" + cls + \"(?:$|\\\\s)\\\\s*\") }\n\n  var rmClass = function(node, cls) {\n    var current = node.className;\n    var match = classTest(cls).exec(current);\n    if (match) {\n      var after = current.slice(match.index + match[0].length);\n      node.className = current.slice(0, match.index) + (after ? match[1] + after : \"\");\n    }\n  };\n\n  function removeChildren(e) {\n    for (var count = e.childNodes.length; count > 0; --count)\n      { e.removeChild(e.firstChild); }\n    return e\n  }\n\n  function removeChildrenAndAdd(parent, e) {\n    return removeChildren(parent).appendChild(e)\n  }\n\n  function elt(tag, content, className, style) {\n    var e = document.createElement(tag);\n    if (className) { e.className = className; }\n    if (style) { e.style.cssText = style; }\n    if (typeof content == \"string\") { e.appendChild(document.createTextNode(content)); }\n    else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }\n    return e\n  }\n  // wrapper for elt, which removes the elt from the accessibility tree\n  function eltP(tag, content, className, style) {\n    var e = elt(tag, content, className, style);\n    e.setAttribute(\"role\", \"presentation\");\n    return e\n  }\n\n  var range;\n  if (document.createRange) { range = function(node, start, end, endNode) {\n    var r = document.createRange();\n    r.setEnd(endNode || node, end);\n    r.setStart(node, start);\n    return r\n  }; }\n  else { range = function(node, start, end) {\n    var r = document.body.createTextRange();\n    try { r.moveToElementText(node.parentNode); }\n    catch(e) { return r }\n    r.collapse(true);\n    r.moveEnd(\"character\", end);\n    r.moveStart(\"character\", start);\n    return r\n  }; }\n\n  function contains(parent, child) {\n    if (child.nodeType == 3) // Android browser always returns false when child is a textnode\n      { child = child.parentNode; }\n    if (parent.contains)\n      { return parent.contains(child) }\n    do {\n      if (child.nodeType == 11) { child = child.host; }\n      if (child == parent) { return true }\n    } while (child = child.parentNode)\n  }\n\n  function activeElt() {\n    // IE and Edge may throw an \"Unspecified Error\" when accessing document.activeElement.\n    // IE < 10 will throw when accessed while the page is loading or in an iframe.\n    // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.\n    var activeElement;\n    try {\n      activeElement = document.activeElement;\n    } catch(e) {\n      activeElement = document.body || null;\n    }\n    while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)\n      { activeElement = activeElement.shadowRoot.activeElement; }\n    return activeElement\n  }\n\n  function addClass(node, cls) {\n    var current = node.className;\n    if (!classTest(cls).test(current)) { node.className += (current ? \" \" : \"\") + cls; }\n  }\n  function joinClasses(a, b) {\n    var as = a.split(\" \");\n    for (var i = 0; i < as.length; i++)\n      { if (as[i] && !classTest(as[i]).test(b)) { b += \" \" + as[i]; } }\n    return b\n  }\n\n  var selectInput = function(node) { node.select(); };\n  if (ios) // Mobile Safari apparently has a bug where select() is broken.\n    { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }\n  else if (ie) // Suppress mysterious IE10 errors\n    { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }\n\n  function bind(f) {\n    var args = Array.prototype.slice.call(arguments, 1);\n    return function(){return f.apply(null, args)}\n  }\n\n  function copyObj(obj, target, overwrite) {\n    if (!target) { target = {}; }\n    for (var prop in obj)\n      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))\n        { target[prop] = obj[prop]; } }\n    return target\n  }\n\n  // Counts the column offset in a string, taking tabs into account.\n  // Used mostly to find indentation.\n  function countColumn(string, end, tabSize, startIndex, startValue) {\n    if (end == null) {\n      end = string.search(/[^\\s\\u00a0]/);\n      if (end == -1) { end = string.length; }\n    }\n    for (var i = startIndex || 0, n = startValue || 0;;) {\n      var nextTab = string.indexOf(\"\\t\", i);\n      if (nextTab < 0 || nextTab >= end)\n        { return n + (end - i) }\n      n += nextTab - i;\n      n += tabSize - (n % tabSize);\n      i = nextTab + 1;\n    }\n  }\n\n  var Delayed = function() {\n    this.id = null;\n    this.f = null;\n    this.time = 0;\n    this.handler = bind(this.onTimeout, this);\n  };\n  Delayed.prototype.onTimeout = function (self) {\n    self.id = 0;\n    if (self.time <= +new Date) {\n      self.f();\n    } else {\n      setTimeout(self.handler, self.time - +new Date);\n    }\n  };\n  Delayed.prototype.set = function (ms, f) {\n    this.f = f;\n    var time = +new Date + ms;\n    if (!this.id || time < this.time) {\n      clearTimeout(this.id);\n      this.id = setTimeout(this.handler, ms);\n      this.time = time;\n    }\n  };\n\n  function indexOf(array, elt) {\n    for (var i = 0; i < array.length; ++i)\n      { if (array[i] == elt) { return i } }\n    return -1\n  }\n\n  // Number of pixels added to scroller and sizer to hide scrollbar\n  var scrollerGap = 30;\n\n  // Returned or thrown by various protocols to signal 'I'm not\n  // handling this'.\n  var Pass = {toString: function(){return \"CodeMirror.Pass\"}};\n\n  // Reused option objects for setSelection & friends\n  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: \"*mouse\"}, sel_move = {origin: \"+move\"};\n\n  // The inverse of countColumn -- find the offset that corresponds to\n  // a particular column.\n  function findColumn(string, goal, tabSize) {\n    for (var pos = 0, col = 0;;) {\n      var nextTab = string.indexOf(\"\\t\", pos);\n      if (nextTab == -1) { nextTab = string.length; }\n      var skipped = nextTab - pos;\n      if (nextTab == string.length || col + skipped >= goal)\n        { return pos + Math.min(skipped, goal - col) }\n      col += nextTab - pos;\n      col += tabSize - (col % tabSize);\n      pos = nextTab + 1;\n      if (col >= goal) { return pos }\n    }\n  }\n\n  var spaceStrs = [\"\"];\n  function spaceStr(n) {\n    while (spaceStrs.length <= n)\n      { spaceStrs.push(lst(spaceStrs) + \" \"); }\n    return spaceStrs[n]\n  }\n\n  function lst(arr) { return arr[arr.length-1] }\n\n  function map(array, f) {\n    var out = [];\n    for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }\n    return out\n  }\n\n  function insertSorted(array, value, score) {\n    var pos = 0, priority = score(value);\n    while (pos < array.length && score(array[pos]) <= priority) { pos++; }\n    array.splice(pos, 0, value);\n  }\n\n  function nothing() {}\n\n  function createObj(base, props) {\n    var inst;\n    if (Object.create) {\n      inst = Object.create(base);\n    } else {\n      nothing.prototype = base;\n      inst = new nothing();\n    }\n    if (props) { copyObj(props, inst); }\n    return inst\n  }\n\n  var nonASCIISingleCaseWordChar = /[\\u00df\\u0587\\u0590-\\u05f4\\u0600-\\u06ff\\u3040-\\u309f\\u30a0-\\u30ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\uac00-\\ud7af]/;\n  function isWordCharBasic(ch) {\n    return /\\w/.test(ch) || ch > \"\\x80\" &&\n      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))\n  }\n  function isWordChar(ch, helper) {\n    if (!helper) { return isWordCharBasic(ch) }\n    if (helper.source.indexOf(\"\\\\w\") > -1 && isWordCharBasic(ch)) { return true }\n    return helper.test(ch)\n  }\n\n  function isEmpty(obj) {\n    for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }\n    return true\n  }\n\n  // Extending unicode characters. A series of a non-extending char +\n  // any number of extending chars is treated as a single unit as far\n  // as editing and measuring is concerned. This is not fully correct,\n  // since some scripts/fonts/browsers also treat other configurations\n  // of code points as a group.\n  var extendingChars = /[\\u0300-\\u036f\\u0483-\\u0489\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u064b-\\u065e\\u0670\\u06d6-\\u06dc\\u06de-\\u06e4\\u06e7\\u06e8\\u06ea-\\u06ed\\u0711\\u0730-\\u074a\\u07a6-\\u07b0\\u07eb-\\u07f3\\u0816-\\u0819\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0900-\\u0902\\u093c\\u0941-\\u0948\\u094d\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09bc\\u09be\\u09c1-\\u09c4\\u09cd\\u09d7\\u09e2\\u09e3\\u0a01\\u0a02\\u0a3c\\u0a41\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a70\\u0a71\\u0a75\\u0a81\\u0a82\\u0abc\\u0ac1-\\u0ac5\\u0ac7\\u0ac8\\u0acd\\u0ae2\\u0ae3\\u0b01\\u0b3c\\u0b3e\\u0b3f\\u0b41-\\u0b44\\u0b4d\\u0b56\\u0b57\\u0b62\\u0b63\\u0b82\\u0bbe\\u0bc0\\u0bcd\\u0bd7\\u0c3e-\\u0c40\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62\\u0c63\\u0cbc\\u0cbf\\u0cc2\\u0cc6\\u0ccc\\u0ccd\\u0cd5\\u0cd6\\u0ce2\\u0ce3\\u0d3e\\u0d41-\\u0d44\\u0d4d\\u0d57\\u0d62\\u0d63\\u0dca\\u0dcf\\u0dd2-\\u0dd4\\u0dd6\\u0ddf\\u0e31\\u0e34-\\u0e3a\\u0e47-\\u0e4e\\u0eb1\\u0eb4-\\u0eb9\\u0ebb\\u0ebc\\u0ec8-\\u0ecd\\u0f18\\u0f19\\u0f35\\u0f37\\u0f39\\u0f71-\\u0f7e\\u0f80-\\u0f84\\u0f86\\u0f87\\u0f90-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u102d-\\u1030\\u1032-\\u1037\\u1039\\u103a\\u103d\\u103e\\u1058\\u1059\\u105e-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108d\\u109d\\u135f\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17b7-\\u17bd\\u17c6\\u17c9-\\u17d3\\u17dd\\u180b-\\u180d\\u18a9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193b\\u1a17\\u1a18\\u1a56\\u1a58-\\u1a5e\\u1a60\\u1a62\\u1a65-\\u1a6c\\u1a73-\\u1a7c\\u1a7f\\u1b00-\\u1b03\\u1b34\\u1b36-\\u1b3a\\u1b3c\\u1b42\\u1b6b-\\u1b73\\u1b80\\u1b81\\u1ba2-\\u1ba5\\u1ba8\\u1ba9\\u1c2c-\\u1c33\\u1c36\\u1c37\\u1cd0-\\u1cd2\\u1cd4-\\u1ce0\\u1ce2-\\u1ce8\\u1ced\\u1dc0-\\u1de6\\u1dfd-\\u1dff\\u200c\\u200d\\u20d0-\\u20f0\\u2cef-\\u2cf1\\u2de0-\\u2dff\\u302a-\\u302f\\u3099\\u309a\\ua66f-\\ua672\\ua67c\\ua67d\\ua6f0\\ua6f1\\ua802\\ua806\\ua80b\\ua825\\ua826\\ua8c4\\ua8e0-\\ua8f1\\ua926-\\ua92d\\ua947-\\ua951\\ua980-\\ua982\\ua9b3\\ua9b6-\\ua9b9\\ua9bc\\uaa29-\\uaa2e\\uaa31\\uaa32\\uaa35\\uaa36\\uaa43\\uaa4c\\uaab0\\uaab2-\\uaab4\\uaab7\\uaab8\\uaabe\\uaabf\\uaac1\\uabe5\\uabe8\\uabed\\udc00-\\udfff\\ufb1e\\ufe00-\\ufe0f\\ufe20-\\ufe26\\uff9e\\uff9f]/;\n  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }\n\n  // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.\n  function skipExtendingChars(str, pos, dir) {\n    while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }\n    return pos\n  }\n\n  // Returns the value from the range [`from`; `to`] that satisfies\n  // `pred` and is closest to `from`. Assumes that at least `to`\n  // satisfies `pred`. Supports `from` being greater than `to`.\n  function findFirst(pred, from, to) {\n    // At any point we are certain `to` satisfies `pred`, don't know\n    // whether `from` does.\n    var dir = from > to ? -1 : 1;\n    for (;;) {\n      if (from == to) { return from }\n      var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);\n      if (mid == from) { return pred(mid) ? from : to }\n      if (pred(mid)) { to = mid; }\n      else { from = mid + dir; }\n    }\n  }\n\n  // BIDI HELPERS\n\n  function iterateBidiSections(order, from, to, f) {\n    if (!order) { return f(from, to, \"ltr\", 0) }\n    var found = false;\n    for (var i = 0; i < order.length; ++i) {\n      var part = order[i];\n      if (part.from < to && part.to > from || from == to && part.to == from) {\n        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? \"rtl\" : \"ltr\", i);\n        found = true;\n      }\n    }\n    if (!found) { f(from, to, \"ltr\"); }\n  }\n\n  var bidiOther = null;\n  function getBidiPartAt(order, ch, sticky) {\n    var found;\n    bidiOther = null;\n    for (var i = 0; i < order.length; ++i) {\n      var cur = order[i];\n      if (cur.from < ch && cur.to > ch) { return i }\n      if (cur.to == ch) {\n        if (cur.from != cur.to && sticky == \"before\") { found = i; }\n        else { bidiOther = i; }\n      }\n      if (cur.from == ch) {\n        if (cur.from != cur.to && sticky != \"before\") { found = i; }\n        else { bidiOther = i; }\n      }\n    }\n    return found != null ? found : bidiOther\n  }\n\n  // Bidirectional ordering algorithm\n  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm\n  // that this (partially) implements.\n\n  // One-char codes used for character types:\n  // L (L):   Left-to-Right\n  // R (R):   Right-to-Left\n  // r (AL):  Right-to-Left Arabic\n  // 1 (EN):  European Number\n  // + (ES):  European Number Separator\n  // % (ET):  European Number Terminator\n  // n (AN):  Arabic Number\n  // , (CS):  Common Number Separator\n  // m (NSM): Non-Spacing Mark\n  // b (BN):  Boundary Neutral\n  // s (B):   Paragraph Separator\n  // t (S):   Segment Separator\n  // w (WS):  Whitespace\n  // N (ON):  Other Neutrals\n\n  // Returns null if characters are ordered as they appear\n  // (left-to-right), or an array of sections ({from, to, level}\n  // objects) in the order in which they occur visually.\n  var bidiOrdering = (function() {\n    // Character types for codepoints 0 to 0xff\n    var lowTypes = \"bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN\";\n    // Character types for codepoints 0x600 to 0x6f9\n    var arabicTypes = \"nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111\";\n    function charType(code) {\n      if (code <= 0xf7) { return lowTypes.charAt(code) }\n      else if (0x590 <= code && code <= 0x5f4) { return \"R\" }\n      else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }\n      else if (0x6ee <= code && code <= 0x8ac) { return \"r\" }\n      else if (0x2000 <= code && code <= 0x200b) { return \"w\" }\n      else if (code == 0x200c) { return \"b\" }\n      else { return \"L\" }\n    }\n\n    var bidiRE = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\n    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;\n\n    function BidiSpan(level, from, to) {\n      this.level = level;\n      this.from = from; this.to = to;\n    }\n\n    return function(str, direction) {\n      var outerType = direction == \"ltr\" ? \"L\" : \"R\";\n\n      if (str.length == 0 || direction == \"ltr\" && !bidiRE.test(str)) { return false }\n      var len = str.length, types = [];\n      for (var i = 0; i < len; ++i)\n        { types.push(charType(str.charCodeAt(i))); }\n\n      // W1. Examine each non-spacing mark (NSM) in the level run, and\n      // change the type of the NSM to the type of the previous\n      // character. If the NSM is at the start of the level run, it will\n      // get the type of sor.\n      for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {\n        var type = types[i$1];\n        if (type == \"m\") { types[i$1] = prev; }\n        else { prev = type; }\n      }\n\n      // W2. Search backwards from each instance of a European number\n      // until the first strong type (R, L, AL, or sor) is found. If an\n      // AL is found, change the type of the European number to Arabic\n      // number.\n      // W3. Change all ALs to R.\n      for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {\n        var type$1 = types[i$2];\n        if (type$1 == \"1\" && cur == \"r\") { types[i$2] = \"n\"; }\n        else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == \"r\") { types[i$2] = \"R\"; } }\n      }\n\n      // W4. A single European separator between two European numbers\n      // changes to a European number. A single common separator between\n      // two numbers of the same type changes to that type.\n      for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {\n        var type$2 = types[i$3];\n        if (type$2 == \"+\" && prev$1 == \"1\" && types[i$3+1] == \"1\") { types[i$3] = \"1\"; }\n        else if (type$2 == \",\" && prev$1 == types[i$3+1] &&\n                 (prev$1 == \"1\" || prev$1 == \"n\")) { types[i$3] = prev$1; }\n        prev$1 = type$2;\n      }\n\n      // W5. A sequence of European terminators adjacent to European\n      // numbers changes to all European numbers.\n      // W6. Otherwise, separators and terminators change to Other\n      // Neutral.\n      for (var i$4 = 0; i$4 < len; ++i$4) {\n        var type$3 = types[i$4];\n        if (type$3 == \",\") { types[i$4] = \"N\"; }\n        else if (type$3 == \"%\") {\n          var end = (void 0);\n          for (end = i$4 + 1; end < len && types[end] == \"%\"; ++end) {}\n          var replace = (i$4 && types[i$4-1] == \"!\") || (end < len && types[end] == \"1\") ? \"1\" : \"N\";\n          for (var j = i$4; j < end; ++j) { types[j] = replace; }\n          i$4 = end - 1;\n        }\n      }\n\n      // W7. Search backwards from each instance of a European number\n      // until the first strong type (R, L, or sor) is found. If an L is\n      // found, then change the type of the European number to L.\n      for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {\n        var type$4 = types[i$5];\n        if (cur$1 == \"L\" && type$4 == \"1\") { types[i$5] = \"L\"; }\n        else if (isStrong.test(type$4)) { cur$1 = type$4; }\n      }\n\n      // N1. A sequence of neutrals takes the direction of the\n      // surrounding strong text if the text on both sides has the same\n      // direction. European and Arabic numbers act as if they were R in\n      // terms of their influence on neutrals. Start-of-level-run (sor)\n      // and end-of-level-run (eor) are used at level run boundaries.\n      // N2. Any remaining neutrals take the embedding direction.\n      for (var i$6 = 0; i$6 < len; ++i$6) {\n        if (isNeutral.test(types[i$6])) {\n          var end$1 = (void 0);\n          for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}\n          var before = (i$6 ? types[i$6-1] : outerType) == \"L\";\n          var after = (end$1 < len ? types[end$1] : outerType) == \"L\";\n          var replace$1 = before == after ? (before ? \"L\" : \"R\") : outerType;\n          for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }\n          i$6 = end$1 - 1;\n        }\n      }\n\n      // Here we depart from the documented algorithm, in order to avoid\n      // building up an actual levels array. Since there are only three\n      // levels (0, 1, 2) in an implementation that doesn't take\n      // explicit embedding into account, we can build up the order on\n      // the fly, without following the level-based algorithm.\n      var order = [], m;\n      for (var i$7 = 0; i$7 < len;) {\n        if (countsAsLeft.test(types[i$7])) {\n          var start = i$7;\n          for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}\n          order.push(new BidiSpan(0, start, i$7));\n        } else {\n          var pos = i$7, at = order.length, isRTL = direction == \"rtl\" ? 1 : 0;\n          for (++i$7; i$7 < len && types[i$7] != \"L\"; ++i$7) {}\n          for (var j$2 = pos; j$2 < i$7;) {\n            if (countsAsNum.test(types[j$2])) {\n              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }\n              var nstart = j$2;\n              for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}\n              order.splice(at, 0, new BidiSpan(2, nstart, j$2));\n              at += isRTL;\n              pos = j$2;\n            } else { ++j$2; }\n          }\n          if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }\n        }\n      }\n      if (direction == \"ltr\") {\n        if (order[0].level == 1 && (m = str.match(/^\\s+/))) {\n          order[0].from = m[0].length;\n          order.unshift(new BidiSpan(0, 0, m[0].length));\n        }\n        if (lst(order).level == 1 && (m = str.match(/\\s+$/))) {\n          lst(order).to -= m[0].length;\n          order.push(new BidiSpan(0, len - m[0].length, len));\n        }\n      }\n\n      return direction == \"rtl\" ? order.reverse() : order\n    }\n  })();\n\n  // Get the bidi ordering for the given line (and cache it). Returns\n  // false for lines that are fully left-to-right, and an array of\n  // BidiSpan objects otherwise.\n  function getOrder(line, direction) {\n    var order = line.order;\n    if (order == null) { order = line.order = bidiOrdering(line.text, direction); }\n    return order\n  }\n\n  // EVENT HANDLING\n\n  // Lightweight event framework. on/off also work on DOM nodes,\n  // registering native DOM handlers.\n\n  var noHandlers = [];\n\n  var on = function(emitter, type, f) {\n    if (emitter.addEventListener) {\n      emitter.addEventListener(type, f, false);\n    } else if (emitter.attachEvent) {\n      emitter.attachEvent(\"on\" + type, f);\n    } else {\n      var map = emitter._handlers || (emitter._handlers = {});\n      map[type] = (map[type] || noHandlers).concat(f);\n    }\n  };\n\n  function getHandlers(emitter, type) {\n    return emitter._handlers && emitter._handlers[type] || noHandlers\n  }\n\n  function off(emitter, type, f) {\n    if (emitter.removeEventListener) {\n      emitter.removeEventListener(type, f, false);\n    } else if (emitter.detachEvent) {\n      emitter.detachEvent(\"on\" + type, f);\n    } else {\n      var map = emitter._handlers, arr = map && map[type];\n      if (arr) {\n        var index = indexOf(arr, f);\n        if (index > -1)\n          { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }\n      }\n    }\n  }\n\n  function signal(emitter, type /*, values...*/) {\n    var handlers = getHandlers(emitter, type);\n    if (!handlers.length) { return }\n    var args = Array.prototype.slice.call(arguments, 2);\n    for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }\n  }\n\n  // The DOM events that CodeMirror handles can be overridden by\n  // registering a (non-DOM) handler on the editor for the event name,\n  // and preventDefault-ing the event in that handler.\n  function signalDOMEvent(cm, e, override) {\n    if (typeof e == \"string\")\n      { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }\n    signal(cm, override || e.type, cm, e);\n    return e_defaultPrevented(e) || e.codemirrorIgnore\n  }\n\n  function signalCursorActivity(cm) {\n    var arr = cm._handlers && cm._handlers.cursorActivity;\n    if (!arr) { return }\n    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);\n    for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)\n      { set.push(arr[i]); } }\n  }\n\n  function hasHandler(emitter, type) {\n    return getHandlers(emitter, type).length > 0\n  }\n\n  // Add on and off methods to a constructor's prototype, to make\n  // registering events on such objects more convenient.\n  function eventMixin(ctor) {\n    ctor.prototype.on = function(type, f) {on(this, type, f);};\n    ctor.prototype.off = function(type, f) {off(this, type, f);};\n  }\n\n  // Due to the fact that we still support jurassic IE versions, some\n  // compatibility wrappers are needed.\n\n  function e_preventDefault(e) {\n    if (e.preventDefault) { e.preventDefault(); }\n    else { e.returnValue = false; }\n  }\n  function e_stopPropagation(e) {\n    if (e.stopPropagation) { e.stopPropagation(); }\n    else { e.cancelBubble = true; }\n  }\n  function e_defaultPrevented(e) {\n    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false\n  }\n  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}\n\n  function e_target(e) {return e.target || e.srcElement}\n  function e_button(e) {\n    var b = e.which;\n    if (b == null) {\n      if (e.button & 1) { b = 1; }\n      else if (e.button & 2) { b = 3; }\n      else if (e.button & 4) { b = 2; }\n    }\n    if (mac && e.ctrlKey && b == 1) { b = 3; }\n    return b\n  }\n\n  // Detect drag-and-drop\n  var dragAndDrop = function() {\n    // There is *some* kind of drag-and-drop support in IE6-8, but I\n    // couldn't get it to work yet.\n    if (ie && ie_version < 9) { return false }\n    var div = elt('div');\n    return \"draggable\" in div || \"dragDrop\" in div\n  }();\n\n  var zwspSupported;\n  function zeroWidthElement(measure) {\n    if (zwspSupported == null) {\n      var test = elt(\"span\", \"\\u200b\");\n      removeChildrenAndAdd(measure, elt(\"span\", [test, document.createTextNode(\"x\")]));\n      if (measure.firstChild.offsetHeight != 0)\n        { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }\n    }\n    var node = zwspSupported ? elt(\"span\", \"\\u200b\") :\n      elt(\"span\", \"\\u00a0\", null, \"display: inline-block; width: 1px; margin-right: -1px\");\n    node.setAttribute(\"cm-text\", \"\");\n    return node\n  }\n\n  // Feature-detect IE's crummy client rect reporting for bidi text\n  var badBidiRects;\n  function hasBadBidiRects(measure) {\n    if (badBidiRects != null) { return badBidiRects }\n    var txt = removeChildrenAndAdd(measure, document.createTextNode(\"A\\u062eA\"));\n    var r0 = range(txt, 0, 1).getBoundingClientRect();\n    var r1 = range(txt, 1, 2).getBoundingClientRect();\n    removeChildren(measure);\n    if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)\n    return badBidiRects = (r1.right - r0.right < 3)\n  }\n\n  // See if \"\".split is the broken IE version, if so, provide an\n  // alternative way to split lines.\n  var splitLinesAuto = \"\\n\\nb\".split(/\\n/).length != 3 ? function (string) {\n    var pos = 0, result = [], l = string.length;\n    while (pos <= l) {\n      var nl = string.indexOf(\"\\n\", pos);\n      if (nl == -1) { nl = string.length; }\n      var line = string.slice(pos, string.charAt(nl - 1) == \"\\r\" ? nl - 1 : nl);\n      var rt = line.indexOf(\"\\r\");\n      if (rt != -1) {\n        result.push(line.slice(0, rt));\n        pos += rt + 1;\n      } else {\n        result.push(line);\n        pos = nl + 1;\n      }\n    }\n    return result\n  } : function (string) { return string.split(/\\r\\n?|\\n/); };\n\n  var hasSelection = window.getSelection ? function (te) {\n    try { return te.selectionStart != te.selectionEnd }\n    catch(e) { return false }\n  } : function (te) {\n    var range;\n    try {range = te.ownerDocument.selection.createRange();}\n    catch(e) {}\n    if (!range || range.parentElement() != te) { return false }\n    return range.compareEndPoints(\"StartToEnd\", range) != 0\n  };\n\n  var hasCopyEvent = (function () {\n    var e = elt(\"div\");\n    if (\"oncopy\" in e) { return true }\n    e.setAttribute(\"oncopy\", \"return;\");\n    return typeof e.oncopy == \"function\"\n  })();\n\n  var badZoomedRects = null;\n  function hasBadZoomedRects(measure) {\n    if (badZoomedRects != null) { return badZoomedRects }\n    var node = removeChildrenAndAdd(measure, elt(\"span\", \"x\"));\n    var normal = node.getBoundingClientRect();\n    var fromRange = range(node, 0, 1).getBoundingClientRect();\n    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1\n  }\n\n  // Known modes, by name and by MIME\n  var modes = {}, mimeModes = {};\n\n  // Extra arguments are stored as the mode's dependencies, which is\n  // used by (legacy) mechanisms like loadmode.js to automatically\n  // load a mode. (Preferred mechanism is the require/define calls.)\n  function defineMode(name, mode) {\n    if (arguments.length > 2)\n      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }\n    modes[name] = mode;\n  }\n\n  function defineMIME(mime, spec) {\n    mimeModes[mime] = spec;\n  }\n\n  // Given a MIME type, a {name, ...options} config object, or a name\n  // string, return a mode config object.\n  function resolveMode(spec) {\n    if (typeof spec == \"string\" && mimeModes.hasOwnProperty(spec)) {\n      spec = mimeModes[spec];\n    } else if (spec && typeof spec.name == \"string\" && mimeModes.hasOwnProperty(spec.name)) {\n      var found = mimeModes[spec.name];\n      if (typeof found == \"string\") { found = {name: found}; }\n      spec = createObj(found, spec);\n      spec.name = found.name;\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+xml$/.test(spec)) {\n      return resolveMode(\"application/xml\")\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+json$/.test(spec)) {\n      return resolveMode(\"application/json\")\n    }\n    if (typeof spec == \"string\") { return {name: spec} }\n    else { return spec || {name: \"null\"} }\n  }\n\n  // Given a mode spec (anything that resolveMode accepts), find and\n  // initialize an actual mode object.\n  function getMode(options, spec) {\n    spec = resolveMode(spec);\n    var mfactory = modes[spec.name];\n    if (!mfactory) { return getMode(options, \"text/plain\") }\n    var modeObj = mfactory(options, spec);\n    if (modeExtensions.hasOwnProperty(spec.name)) {\n      var exts = modeExtensions[spec.name];\n      for (var prop in exts) {\n        if (!exts.hasOwnProperty(prop)) { continue }\n        if (modeObj.hasOwnProperty(prop)) { modeObj[\"_\" + prop] = modeObj[prop]; }\n        modeObj[prop] = exts[prop];\n      }\n    }\n    modeObj.name = spec.name;\n    if (spec.helperType) { modeObj.helperType = spec.helperType; }\n    if (spec.modeProps) { for (var prop$1 in spec.modeProps)\n      { modeObj[prop$1] = spec.modeProps[prop$1]; } }\n\n    return modeObj\n  }\n\n  // This can be used to attach properties to mode objects from\n  // outside the actual mode definition.\n  var modeExtensions = {};\n  function extendMode(mode, properties) {\n    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});\n    copyObj(properties, exts);\n  }\n\n  function copyState(mode, state) {\n    if (state === true) { return state }\n    if (mode.copyState) { return mode.copyState(state) }\n    var nstate = {};\n    for (var n in state) {\n      var val = state[n];\n      if (val instanceof Array) { val = val.concat([]); }\n      nstate[n] = val;\n    }\n    return nstate\n  }\n\n  // Given a mode and a state (for that mode), find the inner mode and\n  // state at the position that the state refers to.\n  function innerMode(mode, state) {\n    var info;\n    while (mode.innerMode) {\n      info = mode.innerMode(state);\n      if (!info || info.mode == mode) { break }\n      state = info.state;\n      mode = info.mode;\n    }\n    return info || {mode: mode, state: state}\n  }\n\n  function startState(mode, a1, a2) {\n    return mode.startState ? mode.startState(a1, a2) : true\n  }\n\n  // STRING STREAM\n\n  // Fed to the mode parsers, provides helper functions to make\n  // parsers more succinct.\n\n  var StringStream = function(string, tabSize, lineOracle) {\n    this.pos = this.start = 0;\n    this.string = string;\n    this.tabSize = tabSize || 8;\n    this.lastColumnPos = this.lastColumnValue = 0;\n    this.lineStart = 0;\n    this.lineOracle = lineOracle;\n  };\n\n  StringStream.prototype.eol = function () {return this.pos >= this.string.length};\n  StringStream.prototype.sol = function () {return this.pos == this.lineStart};\n  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};\n  StringStream.prototype.next = function () {\n    if (this.pos < this.string.length)\n      { return this.string.charAt(this.pos++) }\n  };\n  StringStream.prototype.eat = function (match) {\n    var ch = this.string.charAt(this.pos);\n    var ok;\n    if (typeof match == \"string\") { ok = ch == match; }\n    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }\n    if (ok) {++this.pos; return ch}\n  };\n  StringStream.prototype.eatWhile = function (match) {\n    var start = this.pos;\n    while (this.eat(match)){}\n    return this.pos > start\n  };\n  StringStream.prototype.eatSpace = function () {\n    var start = this.pos;\n    while (/[\\s\\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }\n    return this.pos > start\n  };\n  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};\n  StringStream.prototype.skipTo = function (ch) {\n    var found = this.string.indexOf(ch, this.pos);\n    if (found > -1) {this.pos = found; return true}\n  };\n  StringStream.prototype.backUp = function (n) {this.pos -= n;};\n  StringStream.prototype.column = function () {\n    if (this.lastColumnPos < this.start) {\n      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);\n      this.lastColumnPos = this.start;\n    }\n    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n  };\n  StringStream.prototype.indentation = function () {\n    return countColumn(this.string, null, this.tabSize) -\n      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n  };\n  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {\n    if (typeof pattern == \"string\") {\n      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };\n      var substr = this.string.substr(this.pos, pattern.length);\n      if (cased(substr) == cased(pattern)) {\n        if (consume !== false) { this.pos += pattern.length; }\n        return true\n      }\n    } else {\n      var match = this.string.slice(this.pos).match(pattern);\n      if (match && match.index > 0) { return null }\n      if (match && consume !== false) { this.pos += match[0].length; }\n      return match\n    }\n  };\n  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};\n  StringStream.prototype.hideFirstChars = function (n, inner) {\n    this.lineStart += n;\n    try { return inner() }\n    finally { this.lineStart -= n; }\n  };\n  StringStream.prototype.lookAhead = function (n) {\n    var oracle = this.lineOracle;\n    return oracle && oracle.lookAhead(n)\n  };\n  StringStream.prototype.baseToken = function () {\n    var oracle = this.lineOracle;\n    return oracle && oracle.baseToken(this.pos)\n  };\n\n  // Find the line object corresponding to the given line number.\n  function getLine(doc, n) {\n    n -= doc.first;\n    if (n < 0 || n >= doc.size) { throw new Error(\"There is no line \" + (n + doc.first) + \" in the document.\") }\n    var chunk = doc;\n    while (!chunk.lines) {\n      for (var i = 0;; ++i) {\n        var child = chunk.children[i], sz = child.chunkSize();\n        if (n < sz) { chunk = child; break }\n        n -= sz;\n      }\n    }\n    return chunk.lines[n]\n  }\n\n  // Get the part of a document between two positions, as an array of\n  // strings.\n  function getBetween(doc, start, end) {\n    var out = [], n = start.line;\n    doc.iter(start.line, end.line + 1, function (line) {\n      var text = line.text;\n      if (n == end.line) { text = text.slice(0, end.ch); }\n      if (n == start.line) { text = text.slice(start.ch); }\n      out.push(text);\n      ++n;\n    });\n    return out\n  }\n  // Get the lines between from and to, as array of strings.\n  function getLines(doc, from, to) {\n    var out = [];\n    doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value\n    return out\n  }\n\n  // Update the height of a line, propagating the height change\n  // upwards to parent nodes.\n  function updateLineHeight(line, height) {\n    var diff = height - line.height;\n    if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }\n  }\n\n  // Given a line object, find its line number by walking up through\n  // its parent links.\n  function lineNo(line) {\n    if (line.parent == null) { return null }\n    var cur = line.parent, no = indexOf(cur.lines, line);\n    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {\n      for (var i = 0;; ++i) {\n        if (chunk.children[i] == cur) { break }\n        no += chunk.children[i].chunkSize();\n      }\n    }\n    return no + cur.first\n  }\n\n  // Find the line at the given vertical position, using the height\n  // information in the document tree.\n  function lineAtHeight(chunk, h) {\n    var n = chunk.first;\n    outer: do {\n      for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {\n        var child = chunk.children[i$1], ch = child.height;\n        if (h < ch) { chunk = child; continue outer }\n        h -= ch;\n        n += child.chunkSize();\n      }\n      return n\n    } while (!chunk.lines)\n    var i = 0;\n    for (; i < chunk.lines.length; ++i) {\n      var line = chunk.lines[i], lh = line.height;\n      if (h < lh) { break }\n      h -= lh;\n    }\n    return n + i\n  }\n\n  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}\n\n  function lineNumberFor(options, i) {\n    return String(options.lineNumberFormatter(i + options.firstLineNumber))\n  }\n\n  // A Pos instance represents a position within the text.\n  function Pos(line, ch, sticky) {\n    if ( sticky === void 0 ) sticky = null;\n\n    if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }\n    this.line = line;\n    this.ch = ch;\n    this.sticky = sticky;\n  }\n\n  // Compare two positions, return 0 if they are the same, a negative\n  // number when a is less, and a positive number otherwise.\n  function cmp(a, b) { return a.line - b.line || a.ch - b.ch }\n\n  function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }\n\n  function copyPos(x) {return Pos(x.line, x.ch)}\n  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }\n  function minPos(a, b) { return cmp(a, b) < 0 ? a : b }\n\n  // Most of the external API clips given positions to make sure they\n  // actually exist within the document.\n  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}\n  function clipPos(doc, pos) {\n    if (pos.line < doc.first) { return Pos(doc.first, 0) }\n    var last = doc.first + doc.size - 1;\n    if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }\n    return clipToLen(pos, getLine(doc, pos.line).text.length)\n  }\n  function clipToLen(pos, linelen) {\n    var ch = pos.ch;\n    if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }\n    else if (ch < 0) { return Pos(pos.line, 0) }\n    else { return pos }\n  }\n  function clipPosArray(doc, array) {\n    var out = [];\n    for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }\n    return out\n  }\n\n  var SavedContext = function(state, lookAhead) {\n    this.state = state;\n    this.lookAhead = lookAhead;\n  };\n\n  var Context = function(doc, state, line, lookAhead) {\n    this.state = state;\n    this.doc = doc;\n    this.line = line;\n    this.maxLookAhead = lookAhead || 0;\n    this.baseTokens = null;\n    this.baseTokenPos = 1;\n  };\n\n  Context.prototype.lookAhead = function (n) {\n    var line = this.doc.getLine(this.line + n);\n    if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }\n    return line\n  };\n\n  Context.prototype.baseToken = function (n) {\n    if (!this.baseTokens) { return null }\n    while (this.baseTokens[this.baseTokenPos] <= n)\n      { this.baseTokenPos += 2; }\n    var type = this.baseTokens[this.baseTokenPos + 1];\n    return {type: type && type.replace(/( |^)overlay .*/, \"\"),\n            size: this.baseTokens[this.baseTokenPos] - n}\n  };\n\n  Context.prototype.nextLine = function () {\n    this.line++;\n    if (this.maxLookAhead > 0) { this.maxLookAhead--; }\n  };\n\n  Context.fromSaved = function (doc, saved, line) {\n    if (saved instanceof SavedContext)\n      { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }\n    else\n      { return new Context(doc, copyState(doc.mode, saved), line) }\n  };\n\n  Context.prototype.save = function (copy) {\n    var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;\n    return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state\n  };\n\n\n  // Compute a style array (an array starting with a mode generation\n  // -- for invalidation -- followed by pairs of end positions and\n  // style strings), which is used to highlight the tokens on the\n  // line.\n  function highlightLine(cm, line, context, forceToEnd) {\n    // A styles array always starts with a number identifying the\n    // mode/overlays that it is based on (for easy invalidation).\n    var st = [cm.state.modeGen], lineClasses = {};\n    // Compute the base array of styles\n    runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },\n            lineClasses, forceToEnd);\n    var state = context.state;\n\n    // Run overlays, adjust style array.\n    var loop = function ( o ) {\n      context.baseTokens = st;\n      var overlay = cm.state.overlays[o], i = 1, at = 0;\n      context.state = true;\n      runMode(cm, line.text, overlay.mode, context, function (end, style) {\n        var start = i;\n        // Ensure there's a token end at the current position, and that i points at it\n        while (at < end) {\n          var i_end = st[i];\n          if (i_end > end)\n            { st.splice(i, 1, end, st[i+1], i_end); }\n          i += 2;\n          at = Math.min(end, i_end);\n        }\n        if (!style) { return }\n        if (overlay.opaque) {\n          st.splice(start, i - start, end, \"overlay \" + style);\n          i = start + 2;\n        } else {\n          for (; start < i; start += 2) {\n            var cur = st[start+1];\n            st[start+1] = (cur ? cur + \" \" : \"\") + \"overlay \" + style;\n          }\n        }\n      }, lineClasses);\n      context.state = state;\n      context.baseTokens = null;\n      context.baseTokenPos = 1;\n    };\n\n    for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );\n\n    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}\n  }\n\n  function getLineStyles(cm, line, updateFrontier) {\n    if (!line.styles || line.styles[0] != cm.state.modeGen) {\n      var context = getContextBefore(cm, lineNo(line));\n      var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);\n      var result = highlightLine(cm, line, context);\n      if (resetState) { context.state = resetState; }\n      line.stateAfter = context.save(!resetState);\n      line.styles = result.styles;\n      if (result.classes) { line.styleClasses = result.classes; }\n      else if (line.styleClasses) { line.styleClasses = null; }\n      if (updateFrontier === cm.doc.highlightFrontier)\n        { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }\n    }\n    return line.styles\n  }\n\n  function getContextBefore(cm, n, precise) {\n    var doc = cm.doc, display = cm.display;\n    if (!doc.mode.startState) { return new Context(doc, true, n) }\n    var start = findStartLine(cm, n, precise);\n    var saved = start > doc.first && getLine(doc, start - 1).stateAfter;\n    var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);\n\n    doc.iter(start, n, function (line) {\n      processLine(cm, line.text, context);\n      var pos = context.line;\n      line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;\n      context.nextLine();\n    });\n    if (precise) { doc.modeFrontier = context.line; }\n    return context\n  }\n\n  // Lightweight form of highlight -- proceed over this line and\n  // update state, but don't save a style array. Used for lines that\n  // aren't currently visible.\n  function processLine(cm, text, context, startAt) {\n    var mode = cm.doc.mode;\n    var stream = new StringStream(text, cm.options.tabSize, context);\n    stream.start = stream.pos = startAt || 0;\n    if (text == \"\") { callBlankLine(mode, context.state); }\n    while (!stream.eol()) {\n      readToken(mode, stream, context.state);\n      stream.start = stream.pos;\n    }\n  }\n\n  function callBlankLine(mode, state) {\n    if (mode.blankLine) { return mode.blankLine(state) }\n    if (!mode.innerMode) { return }\n    var inner = innerMode(mode, state);\n    if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }\n  }\n\n  function readToken(mode, stream, state, inner) {\n    for (var i = 0; i < 10; i++) {\n      if (inner) { inner[0] = innerMode(mode, state).mode; }\n      var style = mode.token(stream, state);\n      if (stream.pos > stream.start) { return style }\n    }\n    throw new Error(\"Mode \" + mode.name + \" failed to advance stream.\")\n  }\n\n  var Token = function(stream, type, state) {\n    this.start = stream.start; this.end = stream.pos;\n    this.string = stream.current();\n    this.type = type || null;\n    this.state = state;\n  };\n\n  // Utility for getTokenAt and getLineTokens\n  function takeToken(cm, pos, precise, asArray) {\n    var doc = cm.doc, mode = doc.mode, style;\n    pos = clipPos(doc, pos);\n    var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);\n    var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;\n    if (asArray) { tokens = []; }\n    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {\n      stream.start = stream.pos;\n      style = readToken(mode, stream, context.state);\n      if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }\n    }\n    return asArray ? tokens : new Token(stream, style, context.state)\n  }\n\n  function extractLineClasses(type, output) {\n    if (type) { for (;;) {\n      var lineClass = type.match(/(?:^|\\s+)line-(background-)?(\\S+)/);\n      if (!lineClass) { break }\n      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);\n      var prop = lineClass[1] ? \"bgClass\" : \"textClass\";\n      if (output[prop] == null)\n        { output[prop] = lineClass[2]; }\n      else if (!(new RegExp(\"(?:^|\\s)\" + lineClass[2] + \"(?:$|\\s)\")).test(output[prop]))\n        { output[prop] += \" \" + lineClass[2]; }\n    } }\n    return type\n  }\n\n  // Run the given mode's parser over a line, calling f for each token.\n  function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {\n    var flattenSpans = mode.flattenSpans;\n    if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }\n    var curStart = 0, curStyle = null;\n    var stream = new StringStream(text, cm.options.tabSize, context), style;\n    var inner = cm.options.addModeClass && [null];\n    if (text == \"\") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }\n    while (!stream.eol()) {\n      if (stream.pos > cm.options.maxHighlightLength) {\n        flattenSpans = false;\n        if (forceToEnd) { processLine(cm, text, context, stream.pos); }\n        stream.pos = text.length;\n        style = null;\n      } else {\n        style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);\n      }\n      if (inner) {\n        var mName = inner[0].name;\n        if (mName) { style = \"m-\" + (style ? mName + \" \" + style : mName); }\n      }\n      if (!flattenSpans || curStyle != style) {\n        while (curStart < stream.start) {\n          curStart = Math.min(stream.start, curStart + 5000);\n          f(curStart, curStyle);\n        }\n        curStyle = style;\n      }\n      stream.start = stream.pos;\n    }\n    while (curStart < stream.pos) {\n      // Webkit seems to refuse to render text nodes longer than 57444\n      // characters, and returns inaccurate measurements in nodes\n      // starting around 5000 chars.\n      var pos = Math.min(stream.pos, curStart + 5000);\n      f(pos, curStyle);\n      curStart = pos;\n    }\n  }\n\n  // Finds the line to start with when starting a parse. Tries to\n  // find a line with a stateAfter, so that it can start with a\n  // valid state. If that fails, it returns the line with the\n  // smallest indentation, which tends to need the least context to\n  // parse correctly.\n  function findStartLine(cm, n, precise) {\n    var minindent, minline, doc = cm.doc;\n    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);\n    for (var search = n; search > lim; --search) {\n      if (search <= doc.first) { return doc.first }\n      var line = getLine(doc, search - 1), after = line.stateAfter;\n      if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))\n        { return search }\n      var indented = countColumn(line.text, null, cm.options.tabSize);\n      if (minline == null || minindent > indented) {\n        minline = search - 1;\n        minindent = indented;\n      }\n    }\n    return minline\n  }\n\n  function retreatFrontier(doc, n) {\n    doc.modeFrontier = Math.min(doc.modeFrontier, n);\n    if (doc.highlightFrontier < n - 10) { return }\n    var start = doc.first;\n    for (var line = n - 1; line > start; line--) {\n      var saved = getLine(doc, line).stateAfter;\n      // change is on 3\n      // state on line 1 looked ahead 2 -- so saw 3\n      // test 1 + 2 < 3 should cover this\n      if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {\n        start = line + 1;\n        break\n      }\n    }\n    doc.highlightFrontier = Math.min(doc.highlightFrontier, start);\n  }\n\n  // Optimize some code when these features are not used.\n  var sawReadOnlySpans = false, sawCollapsedSpans = false;\n\n  function seeReadOnlySpans() {\n    sawReadOnlySpans = true;\n  }\n\n  function seeCollapsedSpans() {\n    sawCollapsedSpans = true;\n  }\n\n  // TEXTMARKER SPANS\n\n  function MarkedSpan(marker, from, to) {\n    this.marker = marker;\n    this.from = from; this.to = to;\n  }\n\n  // Search an array of spans for a span matching the given marker.\n  function getMarkedSpanFor(spans, marker) {\n    if (spans) { for (var i = 0; i < spans.length; ++i) {\n      var span = spans[i];\n      if (span.marker == marker) { return span }\n    } }\n  }\n  // Remove a span from an array, returning undefined if no spans are\n  // left (we don't store arrays for lines without spans).\n  function removeMarkedSpan(spans, span) {\n    var r;\n    for (var i = 0; i < spans.length; ++i)\n      { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }\n    return r\n  }\n  // Add a span to a line.\n  function addMarkedSpan(line, span) {\n    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];\n    span.marker.attachLine(line);\n  }\n\n  // Used for the algorithm that adjusts markers for a change in the\n  // document. These functions cut an array of spans at a given\n  // character position, returning an array of remaining chunks (or\n  // undefined if nothing remains).\n  function markedSpansBefore(old, startCh, isInsert) {\n    var nw;\n    if (old) { for (var i = 0; i < old.length; ++i) {\n      var span = old[i], marker = span.marker;\n      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);\n      if (startsBefore || span.from == startCh && marker.type == \"bookmark\" && (!isInsert || !span.marker.insertLeft)) {\n        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)\n        ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));\n      }\n    } }\n    return nw\n  }\n  function markedSpansAfter(old, endCh, isInsert) {\n    var nw;\n    if (old) { for (var i = 0; i < old.length; ++i) {\n      var span = old[i], marker = span.marker;\n      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);\n      if (endsAfter || span.from == endCh && marker.type == \"bookmark\" && (!isInsert || span.marker.insertLeft)) {\n        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)\n        ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,\n                                              span.to == null ? null : span.to - endCh));\n      }\n    } }\n    return nw\n  }\n\n  // Given a change object, compute the new set of marker spans that\n  // cover the line in which the change took place. Removes spans\n  // entirely within the change, reconnects spans belonging to the\n  // same marker that appear on both sides of the change, and cuts off\n  // spans partially within the change. Returns an array of span\n  // arrays with one element for each line in (after) the change.\n  function stretchSpansOverChange(doc, change) {\n    if (change.full) { return null }\n    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;\n    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;\n    if (!oldFirst && !oldLast) { return null }\n\n    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;\n    // Get the spans that 'stick out' on both sides\n    var first = markedSpansBefore(oldFirst, startCh, isInsert);\n    var last = markedSpansAfter(oldLast, endCh, isInsert);\n\n    // Next, merge those two ends\n    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);\n    if (first) {\n      // Fix up .to properties of first\n      for (var i = 0; i < first.length; ++i) {\n        var span = first[i];\n        if (span.to == null) {\n          var found = getMarkedSpanFor(last, span.marker);\n          if (!found) { span.to = startCh; }\n          else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }\n        }\n      }\n    }\n    if (last) {\n      // Fix up .from in last (or move them into first in case of sameLine)\n      for (var i$1 = 0; i$1 < last.length; ++i$1) {\n        var span$1 = last[i$1];\n        if (span$1.to != null) { span$1.to += offset; }\n        if (span$1.from == null) {\n          var found$1 = getMarkedSpanFor(first, span$1.marker);\n          if (!found$1) {\n            span$1.from = offset;\n            if (sameLine) { (first || (first = [])).push(span$1); }\n          }\n        } else {\n          span$1.from += offset;\n          if (sameLine) { (first || (first = [])).push(span$1); }\n        }\n      }\n    }\n    // Make sure we didn't create any zero-length spans\n    if (first) { first = clearEmptySpans(first); }\n    if (last && last != first) { last = clearEmptySpans(last); }\n\n    var newMarkers = [first];\n    if (!sameLine) {\n      // Fill gap with whole-line-spans\n      var gap = change.text.length - 2, gapMarkers;\n      if (gap > 0 && first)\n        { for (var i$2 = 0; i$2 < first.length; ++i$2)\n          { if (first[i$2].to == null)\n            { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }\n      for (var i$3 = 0; i$3 < gap; ++i$3)\n        { newMarkers.push(gapMarkers); }\n      newMarkers.push(last);\n    }\n    return newMarkers\n  }\n\n  // Remove spans that are empty and don't have a clearWhenEmpty\n  // option of false.\n  function clearEmptySpans(spans) {\n    for (var i = 0; i < spans.length; ++i) {\n      var span = spans[i];\n      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)\n        { spans.splice(i--, 1); }\n    }\n    if (!spans.length) { return null }\n    return spans\n  }\n\n  // Used to 'clip' out readOnly ranges when making a change.\n  function removeReadOnlyRanges(doc, from, to) {\n    var markers = null;\n    doc.iter(from.line, to.line + 1, function (line) {\n      if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n        var mark = line.markedSpans[i].marker;\n        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))\n          { (markers || (markers = [])).push(mark); }\n      } }\n    });\n    if (!markers) { return null }\n    var parts = [{from: from, to: to}];\n    for (var i = 0; i < markers.length; ++i) {\n      var mk = markers[i], m = mk.find(0);\n      for (var j = 0; j < parts.length; ++j) {\n        var p = parts[j];\n        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }\n        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);\n        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)\n          { newParts.push({from: p.from, to: m.from}); }\n        if (dto > 0 || !mk.inclusiveRight && !dto)\n          { newParts.push({from: m.to, to: p.to}); }\n        parts.splice.apply(parts, newParts);\n        j += newParts.length - 3;\n      }\n    }\n    return parts\n  }\n\n  // Connect or disconnect spans from a line.\n  function detachMarkedSpans(line) {\n    var spans = line.markedSpans;\n    if (!spans) { return }\n    for (var i = 0; i < spans.length; ++i)\n      { spans[i].marker.detachLine(line); }\n    line.markedSpans = null;\n  }\n  function attachMarkedSpans(line, spans) {\n    if (!spans) { return }\n    for (var i = 0; i < spans.length; ++i)\n      { spans[i].marker.attachLine(line); }\n    line.markedSpans = spans;\n  }\n\n  // Helpers used when computing which overlapping collapsed span\n  // counts as the larger one.\n  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }\n  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }\n\n  // Returns a number indicating which of two overlapping collapsed\n  // spans is larger (and thus includes the other). Falls back to\n  // comparing ids when the spans cover exactly the same range.\n  function compareCollapsedMarkers(a, b) {\n    var lenDiff = a.lines.length - b.lines.length;\n    if (lenDiff != 0) { return lenDiff }\n    var aPos = a.find(), bPos = b.find();\n    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);\n    if (fromCmp) { return -fromCmp }\n    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);\n    if (toCmp) { return toCmp }\n    return b.id - a.id\n  }\n\n  // Find out whether a line ends or starts in a collapsed span. If\n  // so, return the marker for that span.\n  function collapsedSpanAtSide(line, start) {\n    var sps = sawCollapsedSpans && line.markedSpans, found;\n    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n      sp = sps[i];\n      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0))\n        { found = sp.marker; }\n    } }\n    return found\n  }\n  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }\n  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }\n\n  function collapsedSpanAround(line, ch) {\n    var sps = sawCollapsedSpans && line.markedSpans, found;\n    if (sps) { for (var i = 0; i < sps.length; ++i) {\n      var sp = sps[i];\n      if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }\n    } }\n    return found\n  }\n\n  // Test whether there exists a collapsed span that partially\n  // overlaps (covers the start or end, but not both) of a new span.\n  // Such overlap is not allowed.\n  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {\n    var line = getLine(doc, lineNo);\n    var sps = sawCollapsedSpans && line.markedSpans;\n    if (sps) { for (var i = 0; i < sps.length; ++i) {\n      var sp = sps[i];\n      if (!sp.marker.collapsed) { continue }\n      var found = sp.marker.find(0);\n      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);\n      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);\n      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }\n      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||\n          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))\n        { return true }\n    } }\n  }\n\n  // A visual line is a line as drawn on the screen. Folding, for\n  // example, can cause multiple logical lines to appear on the same\n  // visual line. This finds the start of the visual line that the\n  // given line is part of (usually that is the line itself).\n  function visualLine(line) {\n    var merged;\n    while (merged = collapsedSpanAtStart(line))\n      { line = merged.find(-1, true).line; }\n    return line\n  }\n\n  function visualLineEnd(line) {\n    var merged;\n    while (merged = collapsedSpanAtEnd(line))\n      { line = merged.find(1, true).line; }\n    return line\n  }\n\n  // Returns an array of logical lines that continue the visual line\n  // started by the argument, or undefined if there are no such lines.\n  function visualLineContinued(line) {\n    var merged, lines;\n    while (merged = collapsedSpanAtEnd(line)) {\n      line = merged.find(1, true).line\n      ;(lines || (lines = [])).push(line);\n    }\n    return lines\n  }\n\n  // Get the line number of the start of the visual line that the\n  // given line number is part of.\n  function visualLineNo(doc, lineN) {\n    var line = getLine(doc, lineN), vis = visualLine(line);\n    if (line == vis) { return lineN }\n    return lineNo(vis)\n  }\n\n  // Get the line number of the start of the next visual line after\n  // the given line.\n  function visualLineEndNo(doc, lineN) {\n    if (lineN > doc.lastLine()) { return lineN }\n    var line = getLine(doc, lineN), merged;\n    if (!lineIsHidden(doc, line)) { return lineN }\n    while (merged = collapsedSpanAtEnd(line))\n      { line = merged.find(1, true).line; }\n    return lineNo(line) + 1\n  }\n\n  // Compute whether a line is hidden. Lines count as hidden when they\n  // are part of a visual line that starts with another line, or when\n  // they are entirely covered by collapsed, non-widget span.\n  function lineIsHidden(doc, line) {\n    var sps = sawCollapsedSpans && line.markedSpans;\n    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n      sp = sps[i];\n      if (!sp.marker.collapsed) { continue }\n      if (sp.from == null) { return true }\n      if (sp.marker.widgetNode) { continue }\n      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))\n        { return true }\n    } }\n  }\n  function lineIsHiddenInner(doc, line, span) {\n    if (span.to == null) {\n      var end = span.marker.find(1, true);\n      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))\n    }\n    if (span.marker.inclusiveRight && span.to == line.text.length)\n      { return true }\n    for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {\n      sp = line.markedSpans[i];\n      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&\n          (sp.to == null || sp.to != span.from) &&\n          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&\n          lineIsHiddenInner(doc, line, sp)) { return true }\n    }\n  }\n\n  // Find the height above the given line.\n  function heightAtLine(lineObj) {\n    lineObj = visualLine(lineObj);\n\n    var h = 0, chunk = lineObj.parent;\n    for (var i = 0; i < chunk.lines.length; ++i) {\n      var line = chunk.lines[i];\n      if (line == lineObj) { break }\n      else { h += line.height; }\n    }\n    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {\n      for (var i$1 = 0; i$1 < p.children.length; ++i$1) {\n        var cur = p.children[i$1];\n        if (cur == chunk) { break }\n        else { h += cur.height; }\n      }\n    }\n    return h\n  }\n\n  // Compute the character length of a line, taking into account\n  // collapsed ranges (see markText) that might hide parts, and join\n  // other lines onto it.\n  function lineLength(line) {\n    if (line.height == 0) { return 0 }\n    var len = line.text.length, merged, cur = line;\n    while (merged = collapsedSpanAtStart(cur)) {\n      var found = merged.find(0, true);\n      cur = found.from.line;\n      len += found.from.ch - found.to.ch;\n    }\n    cur = line;\n    while (merged = collapsedSpanAtEnd(cur)) {\n      var found$1 = merged.find(0, true);\n      len -= cur.text.length - found$1.from.ch;\n      cur = found$1.to.line;\n      len += cur.text.length - found$1.to.ch;\n    }\n    return len\n  }\n\n  // Find the longest line in the document.\n  function findMaxLine(cm) {\n    var d = cm.display, doc = cm.doc;\n    d.maxLine = getLine(doc, doc.first);\n    d.maxLineLength = lineLength(d.maxLine);\n    d.maxLineChanged = true;\n    doc.iter(function (line) {\n      var len = lineLength(line);\n      if (len > d.maxLineLength) {\n        d.maxLineLength = len;\n        d.maxLine = line;\n      }\n    });\n  }\n\n  // LINE DATA STRUCTURE\n\n  // Line objects. These hold state related to a line, including\n  // highlighting info (the styles array).\n  var Line = function(text, markedSpans, estimateHeight) {\n    this.text = text;\n    attachMarkedSpans(this, markedSpans);\n    this.height = estimateHeight ? estimateHeight(this) : 1;\n  };\n\n  Line.prototype.lineNo = function () { return lineNo(this) };\n  eventMixin(Line);\n\n  // Change the content (text, markers) of a line. Automatically\n  // invalidates cached information and tries to re-estimate the\n  // line's height.\n  function updateLine(line, text, markedSpans, estimateHeight) {\n    line.text = text;\n    if (line.stateAfter) { line.stateAfter = null; }\n    if (line.styles) { line.styles = null; }\n    if (line.order != null) { line.order = null; }\n    detachMarkedSpans(line);\n    attachMarkedSpans(line, markedSpans);\n    var estHeight = estimateHeight ? estimateHeight(line) : 1;\n    if (estHeight != line.height) { updateLineHeight(line, estHeight); }\n  }\n\n  // Detach a line from the document tree and its markers.\n  function cleanUpLine(line) {\n    line.parent = null;\n    detachMarkedSpans(line);\n  }\n\n  // Convert a style as returned by a mode (either null, or a string\n  // containing one or more styles) to a CSS style. This is cached,\n  // and also looks for line-wide styles.\n  var styleToClassCache = {}, styleToClassCacheWithMode = {};\n  function interpretTokenStyle(style, options) {\n    if (!style || /^\\s*$/.test(style)) { return null }\n    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;\n    return cache[style] ||\n      (cache[style] = style.replace(/\\S+/g, \"cm-$&\"))\n  }\n\n  // Render the DOM representation of the text of a line. Also builds\n  // up a 'line map', which points at the DOM nodes that represent\n  // specific stretches of text, and is used by the measuring code.\n  // The returned object contains the DOM node, this map, and\n  // information about line-wide styles that were set by the mode.\n  function buildLineContent(cm, lineView) {\n    // The padding-right forces the element to have a 'border', which\n    // is needed on Webkit to be able to get line-level bounding\n    // rectangles for it (in measureChar).\n    var content = eltP(\"span\", null, null, webkit ? \"padding-right: .1px\" : null);\n    var builder = {pre: eltP(\"pre\", [content], \"CodeMirror-line\"), content: content,\n                   col: 0, pos: 0, cm: cm,\n                   trailingSpace: false,\n                   splitSpaces: cm.getOption(\"lineWrapping\")};\n    lineView.measure = {};\n\n    // Iterate over the logical lines that make up this visual line.\n    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {\n      var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);\n      builder.pos = 0;\n      builder.addToken = buildToken;\n      // Optionally wire in some hacks into the token-rendering\n      // algorithm, to deal with browser quirks.\n      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))\n        { builder.addToken = buildTokenBadBidi(builder.addToken, order); }\n      builder.map = [];\n      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);\n      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));\n      if (line.styleClasses) {\n        if (line.styleClasses.bgClass)\n          { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || \"\"); }\n        if (line.styleClasses.textClass)\n          { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || \"\"); }\n      }\n\n      // Ensure at least a single node is present, for measuring.\n      if (builder.map.length == 0)\n        { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }\n\n      // Store the map and a cache object for the current logical line\n      if (i == 0) {\n        lineView.measure.map = builder.map;\n        lineView.measure.cache = {};\n      } else {\n  (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)\n        ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});\n      }\n    }\n\n    // See issue #2901\n    if (webkit) {\n      var last = builder.content.lastChild;\n      if (/\\bcm-tab\\b/.test(last.className) || (last.querySelector && last.querySelector(\".cm-tab\")))\n        { builder.content.className = \"cm-tab-wrap-hack\"; }\n    }\n\n    signal(cm, \"renderLine\", cm, lineView.line, builder.pre);\n    if (builder.pre.className)\n      { builder.textClass = joinClasses(builder.pre.className, builder.textClass || \"\"); }\n\n    return builder\n  }\n\n  function defaultSpecialCharPlaceholder(ch) {\n    var token = elt(\"span\", \"\\u2022\", \"cm-invalidchar\");\n    token.title = \"\\\\u\" + ch.charCodeAt(0).toString(16);\n    token.setAttribute(\"aria-label\", token.title);\n    return token\n  }\n\n  // Build up the DOM representation for a single token, and add it to\n  // the line map. Takes care to render special characters separately.\n  function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {\n    if (!text) { return }\n    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;\n    var special = builder.cm.state.specialChars, mustWrap = false;\n    var content;\n    if (!special.test(text)) {\n      builder.col += text.length;\n      content = document.createTextNode(displayText);\n      builder.map.push(builder.pos, builder.pos + text.length, content);\n      if (ie && ie_version < 9) { mustWrap = true; }\n      builder.pos += text.length;\n    } else {\n      content = document.createDocumentFragment();\n      var pos = 0;\n      while (true) {\n        special.lastIndex = pos;\n        var m = special.exec(text);\n        var skipped = m ? m.index - pos : text.length - pos;\n        if (skipped) {\n          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));\n          if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt])); }\n          else { content.appendChild(txt); }\n          builder.map.push(builder.pos, builder.pos + skipped, txt);\n          builder.col += skipped;\n          builder.pos += skipped;\n        }\n        if (!m) { break }\n        pos += skipped + 1;\n        var txt$1 = (void 0);\n        if (m[0] == \"\\t\") {\n          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;\n          txt$1 = content.appendChild(elt(\"span\", spaceStr(tabWidth), \"cm-tab\"));\n          txt$1.setAttribute(\"role\", \"presentation\");\n          txt$1.setAttribute(\"cm-text\", \"\\t\");\n          builder.col += tabWidth;\n        } else if (m[0] == \"\\r\" || m[0] == \"\\n\") {\n          txt$1 = content.appendChild(elt(\"span\", m[0] == \"\\r\" ? \"\\u240d\" : \"\\u2424\", \"cm-invalidchar\"));\n          txt$1.setAttribute(\"cm-text\", m[0]);\n          builder.col += 1;\n        } else {\n          txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);\n          txt$1.setAttribute(\"cm-text\", m[0]);\n          if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt$1])); }\n          else { content.appendChild(txt$1); }\n          builder.col += 1;\n        }\n        builder.map.push(builder.pos, builder.pos + 1, txt$1);\n        builder.pos++;\n      }\n    }\n    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;\n    if (style || startStyle || endStyle || mustWrap || css) {\n      var fullStyle = style || \"\";\n      if (startStyle) { fullStyle += startStyle; }\n      if (endStyle) { fullStyle += endStyle; }\n      var token = elt(\"span\", [content], fullStyle, css);\n      if (attributes) {\n        for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != \"style\" && attr != \"class\")\n          { token.setAttribute(attr, attributes[attr]); } }\n      }\n      return builder.content.appendChild(token)\n    }\n    builder.content.appendChild(content);\n  }\n\n  // Change some spaces to NBSP to prevent the browser from collapsing\n  // trailing spaces at the end of a line when rendering text (issue #1362).\n  function splitSpaces(text, trailingBefore) {\n    if (text.length > 1 && !/  /.test(text)) { return text }\n    var spaceBefore = trailingBefore, result = \"\";\n    for (var i = 0; i < text.length; i++) {\n      var ch = text.charAt(i);\n      if (ch == \" \" && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))\n        { ch = \"\\u00a0\"; }\n      result += ch;\n      spaceBefore = ch == \" \";\n    }\n    return result\n  }\n\n  // Work around nonsense dimensions being reported for stretches of\n  // right-to-left text.\n  function buildTokenBadBidi(inner, order) {\n    return function (builder, text, style, startStyle, endStyle, css, attributes) {\n      style = style ? style + \" cm-force-border\" : \"cm-force-border\";\n      var start = builder.pos, end = start + text.length;\n      for (;;) {\n        // Find the part that overlaps with the start of this text\n        var part = (void 0);\n        for (var i = 0; i < order.length; i++) {\n          part = order[i];\n          if (part.to > start && part.from <= start) { break }\n        }\n        if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }\n        inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);\n        startStyle = null;\n        text = text.slice(part.to - start);\n        start = part.to;\n      }\n    }\n  }\n\n  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {\n    var widget = !ignoreWidget && marker.widgetNode;\n    if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }\n    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {\n      if (!widget)\n        { widget = builder.content.appendChild(document.createElement(\"span\")); }\n      widget.setAttribute(\"cm-marker\", marker.id);\n    }\n    if (widget) {\n      builder.cm.display.input.setUneditable(widget);\n      builder.content.appendChild(widget);\n    }\n    builder.pos += size;\n    builder.trailingSpace = false;\n  }\n\n  // Outputs a number of spans to make up a line, taking highlighting\n  // and marked text into account.\n  function insertLineContent(line, builder, styles) {\n    var spans = line.markedSpans, allText = line.text, at = 0;\n    if (!spans) {\n      for (var i$1 = 1; i$1 < styles.length; i$1+=2)\n        { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }\n      return\n    }\n\n    var len = allText.length, pos = 0, i = 1, text = \"\", style, css;\n    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;\n    for (;;) {\n      if (nextChange == pos) { // Update current marker set\n        spanStyle = spanEndStyle = spanStartStyle = css = \"\";\n        attributes = null;\n        collapsed = null; nextChange = Infinity;\n        var foundBookmarks = [], endStyles = (void 0);\n        for (var j = 0; j < spans.length; ++j) {\n          var sp = spans[j], m = sp.marker;\n          if (m.type == \"bookmark\" && sp.from == pos && m.widgetNode) {\n            foundBookmarks.push(m);\n          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {\n            if (sp.to != null && sp.to != pos && nextChange > sp.to) {\n              nextChange = sp.to;\n              spanEndStyle = \"\";\n            }\n            if (m.className) { spanStyle += \" \" + m.className; }\n            if (m.css) { css = (css ? css + \";\" : \"\") + m.css; }\n            if (m.startStyle && sp.from == pos) { spanStartStyle += \" \" + m.startStyle; }\n            if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }\n            // support for the old title property\n            // https://github.com/codemirror/CodeMirror/pull/5673\n            if (m.title) { (attributes || (attributes = {})).title = m.title; }\n            if (m.attributes) {\n              for (var attr in m.attributes)\n                { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }\n            }\n            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))\n              { collapsed = sp; }\n          } else if (sp.from > pos && nextChange > sp.from) {\n            nextChange = sp.from;\n          }\n        }\n        if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)\n          { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += \" \" + endStyles[j$1]; } } }\n\n        if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)\n          { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }\n        if (collapsed && (collapsed.from || 0) == pos) {\n          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,\n                             collapsed.marker, collapsed.from == null);\n          if (collapsed.to == null) { return }\n          if (collapsed.to == pos) { collapsed = false; }\n        }\n      }\n      if (pos >= len) { break }\n\n      var upto = Math.min(len, nextChange);\n      while (true) {\n        if (text) {\n          var end = pos + text.length;\n          if (!collapsed) {\n            var tokenText = end > upto ? text.slice(0, upto - pos) : text;\n            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,\n                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : \"\", css, attributes);\n          }\n          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}\n          pos = end;\n          spanStartStyle = \"\";\n        }\n        text = allText.slice(at, at = styles[i++]);\n        style = interpretTokenStyle(styles[i++], builder.cm.options);\n      }\n    }\n  }\n\n\n  // These objects are used to represent the visible (currently drawn)\n  // part of the document. A LineView may correspond to multiple\n  // logical lines, if those are connected by collapsed ranges.\n  function LineView(doc, line, lineN) {\n    // The starting line\n    this.line = line;\n    // Continuing lines, if any\n    this.rest = visualLineContinued(line);\n    // Number of logical lines in this visual line\n    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;\n    this.node = this.text = null;\n    this.hidden = lineIsHidden(doc, line);\n  }\n\n  // Create a range of LineView objects for the given lines.\n  function buildViewArray(cm, from, to) {\n    var array = [], nextPos;\n    for (var pos = from; pos < to; pos = nextPos) {\n      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);\n      nextPos = pos + view.size;\n      array.push(view);\n    }\n    return array\n  }\n\n  var operationGroup = null;\n\n  function pushOperation(op) {\n    if (operationGroup) {\n      operationGroup.ops.push(op);\n    } else {\n      op.ownsGroup = operationGroup = {\n        ops: [op],\n        delayedCallbacks: []\n      };\n    }\n  }\n\n  function fireCallbacksForOps(group) {\n    // Calls delayed callbacks and cursorActivity handlers until no\n    // new ones appear\n    var callbacks = group.delayedCallbacks, i = 0;\n    do {\n      for (; i < callbacks.length; i++)\n        { callbacks[i].call(null); }\n      for (var j = 0; j < group.ops.length; j++) {\n        var op = group.ops[j];\n        if (op.cursorActivityHandlers)\n          { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)\n            { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }\n      }\n    } while (i < callbacks.length)\n  }\n\n  function finishOperation(op, endCb) {\n    var group = op.ownsGroup;\n    if (!group) { return }\n\n    try { fireCallbacksForOps(group); }\n    finally {\n      operationGroup = null;\n      endCb(group);\n    }\n  }\n\n  var orphanDelayedCallbacks = null;\n\n  // Often, we want to signal events at a point where we are in the\n  // middle of some work, but don't want the handler to start calling\n  // other methods on the editor, which might be in an inconsistent\n  // state or simply not expect any other events to happen.\n  // signalLater looks whether there are any handlers, and schedules\n  // them to be executed when the last operation ends, or, if no\n  // operation is active, when a timeout fires.\n  function signalLater(emitter, type /*, values...*/) {\n    var arr = getHandlers(emitter, type);\n    if (!arr.length) { return }\n    var args = Array.prototype.slice.call(arguments, 2), list;\n    if (operationGroup) {\n      list = operationGroup.delayedCallbacks;\n    } else if (orphanDelayedCallbacks) {\n      list = orphanDelayedCallbacks;\n    } else {\n      list = orphanDelayedCallbacks = [];\n      setTimeout(fireOrphanDelayed, 0);\n    }\n    var loop = function ( i ) {\n      list.push(function () { return arr[i].apply(null, args); });\n    };\n\n    for (var i = 0; i < arr.length; ++i)\n      loop( i );\n  }\n\n  function fireOrphanDelayed() {\n    var delayed = orphanDelayedCallbacks;\n    orphanDelayedCallbacks = null;\n    for (var i = 0; i < delayed.length; ++i) { delayed[i](); }\n  }\n\n  // When an aspect of a line changes, a string is added to\n  // lineView.changes. This updates the relevant part of the line's\n  // DOM structure.\n  function updateLineForChanges(cm, lineView, lineN, dims) {\n    for (var j = 0; j < lineView.changes.length; j++) {\n      var type = lineView.changes[j];\n      if (type == \"text\") { updateLineText(cm, lineView); }\n      else if (type == \"gutter\") { updateLineGutter(cm, lineView, lineN, dims); }\n      else if (type == \"class\") { updateLineClasses(cm, lineView); }\n      else if (type == \"widget\") { updateLineWidgets(cm, lineView, dims); }\n    }\n    lineView.changes = null;\n  }\n\n  // Lines with gutter elements, widgets or a background class need to\n  // be wrapped, and have the extra elements added to the wrapper div\n  function ensureLineWrapped(lineView) {\n    if (lineView.node == lineView.text) {\n      lineView.node = elt(\"div\", null, null, \"position: relative\");\n      if (lineView.text.parentNode)\n        { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }\n      lineView.node.appendChild(lineView.text);\n      if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }\n    }\n    return lineView.node\n  }\n\n  function updateLineBackground(cm, lineView) {\n    var cls = lineView.bgClass ? lineView.bgClass + \" \" + (lineView.line.bgClass || \"\") : lineView.line.bgClass;\n    if (cls) { cls += \" CodeMirror-linebackground\"; }\n    if (lineView.background) {\n      if (cls) { lineView.background.className = cls; }\n      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }\n    } else if (cls) {\n      var wrap = ensureLineWrapped(lineView);\n      lineView.background = wrap.insertBefore(elt(\"div\", null, cls), wrap.firstChild);\n      cm.display.input.setUneditable(lineView.background);\n    }\n  }\n\n  // Wrapper around buildLineContent which will reuse the structure\n  // in display.externalMeasured when possible.\n  function getLineContent(cm, lineView) {\n    var ext = cm.display.externalMeasured;\n    if (ext && ext.line == lineView.line) {\n      cm.display.externalMeasured = null;\n      lineView.measure = ext.measure;\n      return ext.built\n    }\n    return buildLineContent(cm, lineView)\n  }\n\n  // Redraw the line's text. Interacts with the background and text\n  // classes because the mode may output tokens that influence these\n  // classes.\n  function updateLineText(cm, lineView) {\n    var cls = lineView.text.className;\n    var built = getLineContent(cm, lineView);\n    if (lineView.text == lineView.node) { lineView.node = built.pre; }\n    lineView.text.parentNode.replaceChild(built.pre, lineView.text);\n    lineView.text = built.pre;\n    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {\n      lineView.bgClass = built.bgClass;\n      lineView.textClass = built.textClass;\n      updateLineClasses(cm, lineView);\n    } else if (cls) {\n      lineView.text.className = cls;\n    }\n  }\n\n  function updateLineClasses(cm, lineView) {\n    updateLineBackground(cm, lineView);\n    if (lineView.line.wrapClass)\n      { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }\n    else if (lineView.node != lineView.text)\n      { lineView.node.className = \"\"; }\n    var textClass = lineView.textClass ? lineView.textClass + \" \" + (lineView.line.textClass || \"\") : lineView.line.textClass;\n    lineView.text.className = textClass || \"\";\n  }\n\n  function updateLineGutter(cm, lineView, lineN, dims) {\n    if (lineView.gutter) {\n      lineView.node.removeChild(lineView.gutter);\n      lineView.gutter = null;\n    }\n    if (lineView.gutterBackground) {\n      lineView.node.removeChild(lineView.gutterBackground);\n      lineView.gutterBackground = null;\n    }\n    if (lineView.line.gutterClass) {\n      var wrap = ensureLineWrapped(lineView);\n      lineView.gutterBackground = elt(\"div\", null, \"CodeMirror-gutter-background \" + lineView.line.gutterClass,\n                                      (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px; width: \" + (dims.gutterTotalWidth) + \"px\"));\n      cm.display.input.setUneditable(lineView.gutterBackground);\n      wrap.insertBefore(lineView.gutterBackground, lineView.text);\n    }\n    var markers = lineView.line.gutterMarkers;\n    if (cm.options.lineNumbers || markers) {\n      var wrap$1 = ensureLineWrapped(lineView);\n      var gutterWrap = lineView.gutter = elt(\"div\", null, \"CodeMirror-gutter-wrapper\", (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px\"));\n      cm.display.input.setUneditable(gutterWrap);\n      wrap$1.insertBefore(gutterWrap, lineView.text);\n      if (lineView.line.gutterClass)\n        { gutterWrap.className += \" \" + lineView.line.gutterClass; }\n      if (cm.options.lineNumbers && (!markers || !markers[\"CodeMirror-linenumbers\"]))\n        { lineView.lineNumber = gutterWrap.appendChild(\n          elt(\"div\", lineNumberFor(cm.options, lineN),\n              \"CodeMirror-linenumber CodeMirror-gutter-elt\",\n              (\"left: \" + (dims.gutterLeft[\"CodeMirror-linenumbers\"]) + \"px; width: \" + (cm.display.lineNumInnerWidth) + \"px\"))); }\n      if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {\n        var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];\n        if (found)\n          { gutterWrap.appendChild(elt(\"div\", [found], \"CodeMirror-gutter-elt\",\n                                     (\"left: \" + (dims.gutterLeft[id]) + \"px; width: \" + (dims.gutterWidth[id]) + \"px\"))); }\n      } }\n    }\n  }\n\n  function updateLineWidgets(cm, lineView, dims) {\n    if (lineView.alignable) { lineView.alignable = null; }\n    var isWidget = classTest(\"CodeMirror-linewidget\");\n    for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {\n      next = node.nextSibling;\n      if (isWidget.test(node.className)) { lineView.node.removeChild(node); }\n    }\n    insertLineWidgets(cm, lineView, dims);\n  }\n\n  // Build a line's DOM representation from scratch\n  function buildLineElement(cm, lineView, lineN, dims) {\n    var built = getLineContent(cm, lineView);\n    lineView.text = lineView.node = built.pre;\n    if (built.bgClass) { lineView.bgClass = built.bgClass; }\n    if (built.textClass) { lineView.textClass = built.textClass; }\n\n    updateLineClasses(cm, lineView);\n    updateLineGutter(cm, lineView, lineN, dims);\n    insertLineWidgets(cm, lineView, dims);\n    return lineView.node\n  }\n\n  // A lineView may contain multiple logical lines (when merged by\n  // collapsed spans). The widgets for all of them need to be drawn.\n  function insertLineWidgets(cm, lineView, dims) {\n    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);\n    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n      { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }\n  }\n\n  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {\n    if (!line.widgets) { return }\n    var wrap = ensureLineWrapped(lineView);\n    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {\n      var widget = ws[i], node = elt(\"div\", [widget.node], \"CodeMirror-linewidget\" + (widget.className ? \" \" + widget.className : \"\"));\n      if (!widget.handleMouseEvents) { node.setAttribute(\"cm-ignore-events\", \"true\"); }\n      positionLineWidget(widget, node, lineView, dims);\n      cm.display.input.setUneditable(node);\n      if (allowAbove && widget.above)\n        { wrap.insertBefore(node, lineView.gutter || lineView.text); }\n      else\n        { wrap.appendChild(node); }\n      signalLater(widget, \"redraw\");\n    }\n  }\n\n  function positionLineWidget(widget, node, lineView, dims) {\n    if (widget.noHScroll) {\n  (lineView.alignable || (lineView.alignable = [])).push(node);\n      var width = dims.wrapperWidth;\n      node.style.left = dims.fixedPos + \"px\";\n      if (!widget.coverGutter) {\n        width -= dims.gutterTotalWidth;\n        node.style.paddingLeft = dims.gutterTotalWidth + \"px\";\n      }\n      node.style.width = width + \"px\";\n    }\n    if (widget.coverGutter) {\n      node.style.zIndex = 5;\n      node.style.position = \"relative\";\n      if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + \"px\"; }\n    }\n  }\n\n  function widgetHeight(widget) {\n    if (widget.height != null) { return widget.height }\n    var cm = widget.doc.cm;\n    if (!cm) { return 0 }\n    if (!contains(document.body, widget.node)) {\n      var parentStyle = \"position: relative;\";\n      if (widget.coverGutter)\n        { parentStyle += \"margin-left: -\" + cm.display.gutters.offsetWidth + \"px;\"; }\n      if (widget.noHScroll)\n        { parentStyle += \"width: \" + cm.display.wrapper.clientWidth + \"px;\"; }\n      removeChildrenAndAdd(cm.display.measure, elt(\"div\", [widget.node], null, parentStyle));\n    }\n    return widget.height = widget.node.parentNode.offsetHeight\n  }\n\n  // Return true when the given mouse event happened in a widget\n  function eventInWidget(display, e) {\n    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {\n      if (!n || (n.nodeType == 1 && n.getAttribute(\"cm-ignore-events\") == \"true\") ||\n          (n.parentNode == display.sizer && n != display.mover))\n        { return true }\n    }\n  }\n\n  // POSITION MEASUREMENT\n\n  function paddingTop(display) {return display.lineSpace.offsetTop}\n  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}\n  function paddingH(display) {\n    if (display.cachedPaddingH) { return display.cachedPaddingH }\n    var e = removeChildrenAndAdd(display.measure, elt(\"pre\", \"x\", \"CodeMirror-line-like\"));\n    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;\n    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};\n    if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }\n    return data\n  }\n\n  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }\n  function displayWidth(cm) {\n    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth\n  }\n  function displayHeight(cm) {\n    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight\n  }\n\n  // Ensure the lineView.wrapping.heights array is populated. This is\n  // an array of bottom offsets for the lines that make up a drawn\n  // line. When lineWrapping is on, there might be more than one\n  // height.\n  function ensureLineHeights(cm, lineView, rect) {\n    var wrapping = cm.options.lineWrapping;\n    var curWidth = wrapping && displayWidth(cm);\n    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {\n      var heights = lineView.measure.heights = [];\n      if (wrapping) {\n        lineView.measure.width = curWidth;\n        var rects = lineView.text.firstChild.getClientRects();\n        for (var i = 0; i < rects.length - 1; i++) {\n          var cur = rects[i], next = rects[i + 1];\n          if (Math.abs(cur.bottom - next.bottom) > 2)\n            { heights.push((cur.bottom + next.top) / 2 - rect.top); }\n        }\n      }\n      heights.push(rect.bottom - rect.top);\n    }\n  }\n\n  // Find a line map (mapping character offsets to text nodes) and a\n  // measurement cache for the given line number. (A line view might\n  // contain multiple lines when collapsed ranges are present.)\n  function mapFromLineView(lineView, line, lineN) {\n    if (lineView.line == line)\n      { return {map: lineView.measure.map, cache: lineView.measure.cache} }\n    for (var i = 0; i < lineView.rest.length; i++)\n      { if (lineView.rest[i] == line)\n        { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }\n    for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)\n      { if (lineNo(lineView.rest[i$1]) > lineN)\n        { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }\n  }\n\n  // Render a line into the hidden node display.externalMeasured. Used\n  // when measurement is needed for a line that's not in the viewport.\n  function updateExternalMeasurement(cm, line) {\n    line = visualLine(line);\n    var lineN = lineNo(line);\n    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);\n    view.lineN = lineN;\n    var built = view.built = buildLineContent(cm, view);\n    view.text = built.pre;\n    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);\n    return view\n  }\n\n  // Get a {top, bottom, left, right} box (in line-local coordinates)\n  // for a given character.\n  function measureChar(cm, line, ch, bias) {\n    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)\n  }\n\n  // Find a line view that corresponds to the given line number.\n  function findViewForLine(cm, lineN) {\n    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)\n      { return cm.display.view[findViewIndex(cm, lineN)] }\n    var ext = cm.display.externalMeasured;\n    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)\n      { return ext }\n  }\n\n  // Measurement can be split in two steps, the set-up work that\n  // applies to the whole line, and the measurement of the actual\n  // character. Functions like coordsChar, that need to do a lot of\n  // measurements in a row, can thus ensure that the set-up work is\n  // only done once.\n  function prepareMeasureForLine(cm, line) {\n    var lineN = lineNo(line);\n    var view = findViewForLine(cm, lineN);\n    if (view && !view.text) {\n      view = null;\n    } else if (view && view.changes) {\n      updateLineForChanges(cm, view, lineN, getDimensions(cm));\n      cm.curOp.forceUpdate = true;\n    }\n    if (!view)\n      { view = updateExternalMeasurement(cm, line); }\n\n    var info = mapFromLineView(view, line, lineN);\n    return {\n      line: line, view: view, rect: null,\n      map: info.map, cache: info.cache, before: info.before,\n      hasHeights: false\n    }\n  }\n\n  // Given a prepared measurement object, measures the position of an\n  // actual character (or fetches it from the cache).\n  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {\n    if (prepared.before) { ch = -1; }\n    var key = ch + (bias || \"\"), found;\n    if (prepared.cache.hasOwnProperty(key)) {\n      found = prepared.cache[key];\n    } else {\n      if (!prepared.rect)\n        { prepared.rect = prepared.view.text.getBoundingClientRect(); }\n      if (!prepared.hasHeights) {\n        ensureLineHeights(cm, prepared.view, prepared.rect);\n        prepared.hasHeights = true;\n      }\n      found = measureCharInner(cm, prepared, ch, bias);\n      if (!found.bogus) { prepared.cache[key] = found; }\n    }\n    return {left: found.left, right: found.right,\n            top: varHeight ? found.rtop : found.top,\n            bottom: varHeight ? found.rbottom : found.bottom}\n  }\n\n  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};\n\n  function nodeAndOffsetInLineMap(map, ch, bias) {\n    var node, start, end, collapse, mStart, mEnd;\n    // First, search the line map for the text node corresponding to,\n    // or closest to, the target character.\n    for (var i = 0; i < map.length; i += 3) {\n      mStart = map[i];\n      mEnd = map[i + 1];\n      if (ch < mStart) {\n        start = 0; end = 1;\n        collapse = \"left\";\n      } else if (ch < mEnd) {\n        start = ch - mStart;\n        end = start + 1;\n      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {\n        end = mEnd - mStart;\n        start = end - 1;\n        if (ch >= mEnd) { collapse = \"right\"; }\n      }\n      if (start != null) {\n        node = map[i + 2];\n        if (mStart == mEnd && bias == (node.insertLeft ? \"left\" : \"right\"))\n          { collapse = bias; }\n        if (bias == \"left\" && start == 0)\n          { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {\n            node = map[(i -= 3) + 2];\n            collapse = \"left\";\n          } }\n        if (bias == \"right\" && start == mEnd - mStart)\n          { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {\n            node = map[(i += 3) + 2];\n            collapse = \"right\";\n          } }\n        break\n      }\n    }\n    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}\n  }\n\n  function getUsefulRect(rects, bias) {\n    var rect = nullRect;\n    if (bias == \"left\") { for (var i = 0; i < rects.length; i++) {\n      if ((rect = rects[i]).left != rect.right) { break }\n    } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {\n      if ((rect = rects[i$1]).left != rect.right) { break }\n    } }\n    return rect\n  }\n\n  function measureCharInner(cm, prepared, ch, bias) {\n    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);\n    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;\n\n    var rect;\n    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.\n      for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned\n        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }\n        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }\n        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)\n          { rect = node.parentNode.getBoundingClientRect(); }\n        else\n          { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }\n        if (rect.left || rect.right || start == 0) { break }\n        end = start;\n        start = start - 1;\n        collapse = \"right\";\n      }\n      if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }\n    } else { // If it is a widget, simply get the box for the whole widget.\n      if (start > 0) { collapse = bias = \"right\"; }\n      var rects;\n      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)\n        { rect = rects[bias == \"right\" ? rects.length - 1 : 0]; }\n      else\n        { rect = node.getBoundingClientRect(); }\n    }\n    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {\n      var rSpan = node.parentNode.getClientRects()[0];\n      if (rSpan)\n        { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }\n      else\n        { rect = nullRect; }\n    }\n\n    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;\n    var mid = (rtop + rbot) / 2;\n    var heights = prepared.view.measure.heights;\n    var i = 0;\n    for (; i < heights.length - 1; i++)\n      { if (mid < heights[i]) { break } }\n    var top = i ? heights[i - 1] : 0, bot = heights[i];\n    var result = {left: (collapse == \"right\" ? rect.right : rect.left) - prepared.rect.left,\n                  right: (collapse == \"left\" ? rect.left : rect.right) - prepared.rect.left,\n                  top: top, bottom: bot};\n    if (!rect.left && !rect.right) { result.bogus = true; }\n    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }\n\n    return result\n  }\n\n  // Work around problem with bounding client rects on ranges being\n  // returned incorrectly when zoomed on IE10 and below.\n  function maybeUpdateRectForZooming(measure, rect) {\n    if (!window.screen || screen.logicalXDPI == null ||\n        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))\n      { return rect }\n    var scaleX = screen.logicalXDPI / screen.deviceXDPI;\n    var scaleY = screen.logicalYDPI / screen.deviceYDPI;\n    return {left: rect.left * scaleX, right: rect.right * scaleX,\n            top: rect.top * scaleY, bottom: rect.bottom * scaleY}\n  }\n\n  function clearLineMeasurementCacheFor(lineView) {\n    if (lineView.measure) {\n      lineView.measure.cache = {};\n      lineView.measure.heights = null;\n      if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n        { lineView.measure.caches[i] = {}; } }\n    }\n  }\n\n  function clearLineMeasurementCache(cm) {\n    cm.display.externalMeasure = null;\n    removeChildren(cm.display.lineMeasure);\n    for (var i = 0; i < cm.display.view.length; i++)\n      { clearLineMeasurementCacheFor(cm.display.view[i]); }\n  }\n\n  function clearCaches(cm) {\n    clearLineMeasurementCache(cm);\n    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;\n    if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }\n    cm.display.lineNumChars = null;\n  }\n\n  function pageScrollX() {\n    // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206\n    // which causes page_Offset and bounding client rects to use\n    // different reference viewports and invalidate our calculations.\n    if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }\n    return window.pageXOffset || (document.documentElement || document.body).scrollLeft\n  }\n  function pageScrollY() {\n    if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }\n    return window.pageYOffset || (document.documentElement || document.body).scrollTop\n  }\n\n  function widgetTopHeight(lineObj) {\n    var height = 0;\n    if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)\n      { height += widgetHeight(lineObj.widgets[i]); } } }\n    return height\n  }\n\n  // Converts a {top, bottom, left, right} box from line-local\n  // coordinates into another coordinate system. Context may be one of\n  // \"line\", \"div\" (display.lineDiv), \"local\"./null (editor), \"window\",\n  // or \"page\".\n  function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {\n    if (!includeWidgets) {\n      var height = widgetTopHeight(lineObj);\n      rect.top += height; rect.bottom += height;\n    }\n    if (context == \"line\") { return rect }\n    if (!context) { context = \"local\"; }\n    var yOff = heightAtLine(lineObj);\n    if (context == \"local\") { yOff += paddingTop(cm.display); }\n    else { yOff -= cm.display.viewOffset; }\n    if (context == \"page\" || context == \"window\") {\n      var lOff = cm.display.lineSpace.getBoundingClientRect();\n      yOff += lOff.top + (context == \"window\" ? 0 : pageScrollY());\n      var xOff = lOff.left + (context == \"window\" ? 0 : pageScrollX());\n      rect.left += xOff; rect.right += xOff;\n    }\n    rect.top += yOff; rect.bottom += yOff;\n    return rect\n  }\n\n  // Coverts a box from \"div\" coords to another coordinate system.\n  // Context may be \"window\", \"page\", \"div\", or \"local\"./null.\n  function fromCoordSystem(cm, coords, context) {\n    if (context == \"div\") { return coords }\n    var left = coords.left, top = coords.top;\n    // First move into \"page\" coordinate system\n    if (context == \"page\") {\n      left -= pageScrollX();\n      top -= pageScrollY();\n    } else if (context == \"local\" || !context) {\n      var localBox = cm.display.sizer.getBoundingClientRect();\n      left += localBox.left;\n      top += localBox.top;\n    }\n\n    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();\n    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}\n  }\n\n  function charCoords(cm, pos, context, lineObj, bias) {\n    if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }\n    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)\n  }\n\n  // Returns a box for a given cursor position, which may have an\n  // 'other' property containing the position of the secondary cursor\n  // on a bidi boundary.\n  // A cursor Pos(line, char, \"before\") is on the same visual line as `char - 1`\n  // and after `char - 1` in writing order of `char - 1`\n  // A cursor Pos(line, char, \"after\") is on the same visual line as `char`\n  // and before `char` in writing order of `char`\n  // Examples (upper-case letters are RTL, lower-case are LTR):\n  //     Pos(0, 1, ...)\n  //     before   after\n  // ab     a|b     a|b\n  // aB     a|B     aB|\n  // Ab     |Ab     A|b\n  // AB     B|A     B|A\n  // Every position after the last character on a line is considered to stick\n  // to the last character on the line.\n  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {\n    lineObj = lineObj || getLine(cm.doc, pos.line);\n    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }\n    function get(ch, right) {\n      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? \"right\" : \"left\", varHeight);\n      if (right) { m.left = m.right; } else { m.right = m.left; }\n      return intoCoordSystem(cm, lineObj, m, context)\n    }\n    var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;\n    if (ch >= lineObj.text.length) {\n      ch = lineObj.text.length;\n      sticky = \"before\";\n    } else if (ch <= 0) {\n      ch = 0;\n      sticky = \"after\";\n    }\n    if (!order) { return get(sticky == \"before\" ? ch - 1 : ch, sticky == \"before\") }\n\n    function getBidi(ch, partPos, invert) {\n      var part = order[partPos], right = part.level == 1;\n      return get(invert ? ch - 1 : ch, right != invert)\n    }\n    var partPos = getBidiPartAt(order, ch, sticky);\n    var other = bidiOther;\n    var val = getBidi(ch, partPos, sticky == \"before\");\n    if (other != null) { val.other = getBidi(ch, other, sticky != \"before\"); }\n    return val\n  }\n\n  // Used to cheaply estimate the coordinates for a position. Used for\n  // intermediate scroll updates.\n  function estimateCoords(cm, pos) {\n    var left = 0;\n    pos = clipPos(cm.doc, pos);\n    if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }\n    var lineObj = getLine(cm.doc, pos.line);\n    var top = heightAtLine(lineObj) + paddingTop(cm.display);\n    return {left: left, right: left, top: top, bottom: top + lineObj.height}\n  }\n\n  // Positions returned by coordsChar contain some extra information.\n  // xRel is the relative x position of the input coordinates compared\n  // to the found position (so xRel > 0 means the coordinates are to\n  // the right of the character position, for example). When outside\n  // is true, that means the coordinates lie outside the line's\n  // vertical range.\n  function PosWithInfo(line, ch, sticky, outside, xRel) {\n    var pos = Pos(line, ch, sticky);\n    pos.xRel = xRel;\n    if (outside) { pos.outside = outside; }\n    return pos\n  }\n\n  // Compute the character position closest to the given coordinates.\n  // Input must be lineSpace-local (\"div\" coordinate system).\n  function coordsChar(cm, x, y) {\n    var doc = cm.doc;\n    y += cm.display.viewOffset;\n    if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }\n    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;\n    if (lineN > last)\n      { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }\n    if (x < 0) { x = 0; }\n\n    var lineObj = getLine(doc, lineN);\n    for (;;) {\n      var found = coordsCharInner(cm, lineObj, lineN, x, y);\n      var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));\n      if (!collapsed) { return found }\n      var rangeEnd = collapsed.find(1);\n      if (rangeEnd.line == lineN) { return rangeEnd }\n      lineObj = getLine(doc, lineN = rangeEnd.line);\n    }\n  }\n\n  function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {\n    y -= widgetTopHeight(lineObj);\n    var end = lineObj.text.length;\n    var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);\n    end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);\n    return {begin: begin, end: end}\n  }\n\n  function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {\n    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }\n    var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), \"line\").top;\n    return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)\n  }\n\n  // Returns true if the given side of a box is after the given\n  // coordinates, in top-to-bottom, left-to-right order.\n  function boxIsAfter(box, x, y, left) {\n    return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x\n  }\n\n  function coordsCharInner(cm, lineObj, lineNo, x, y) {\n    // Move y into line-local coordinate space\n    y -= heightAtLine(lineObj);\n    var preparedMeasure = prepareMeasureForLine(cm, lineObj);\n    // When directly calling `measureCharPrepared`, we have to adjust\n    // for the widgets at this line.\n    var widgetHeight = widgetTopHeight(lineObj);\n    var begin = 0, end = lineObj.text.length, ltr = true;\n\n    var order = getOrder(lineObj, cm.doc.direction);\n    // If the line isn't plain left-to-right text, first figure out\n    // which bidi section the coordinates fall into.\n    if (order) {\n      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)\n                   (cm, lineObj, lineNo, preparedMeasure, order, x, y);\n      ltr = part.level != 1;\n      // The awkward -1 offsets are needed because findFirst (called\n      // on these below) will treat its first bound as inclusive,\n      // second as exclusive, but we want to actually address the\n      // characters in the part's range\n      begin = ltr ? part.from : part.to - 1;\n      end = ltr ? part.to : part.from - 1;\n    }\n\n    // A binary search to find the first character whose bounding box\n    // starts after the coordinates. If we run across any whose box wrap\n    // the coordinates, store that.\n    var chAround = null, boxAround = null;\n    var ch = findFirst(function (ch) {\n      var box = measureCharPrepared(cm, preparedMeasure, ch);\n      box.top += widgetHeight; box.bottom += widgetHeight;\n      if (!boxIsAfter(box, x, y, false)) { return false }\n      if (box.top <= y && box.left <= x) {\n        chAround = ch;\n        boxAround = box;\n      }\n      return true\n    }, begin, end);\n\n    var baseX, sticky, outside = false;\n    // If a box around the coordinates was found, use that\n    if (boxAround) {\n      // Distinguish coordinates nearer to the left or right side of the box\n      var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;\n      ch = chAround + (atStart ? 0 : 1);\n      sticky = atStart ? \"after\" : \"before\";\n      baseX = atLeft ? boxAround.left : boxAround.right;\n    } else {\n      // (Adjust for extended bound, if necessary.)\n      if (!ltr && (ch == end || ch == begin)) { ch++; }\n      // To determine which side to associate with, get the box to the\n      // left of the character and compare it's vertical position to the\n      // coordinates\n      sticky = ch == 0 ? \"after\" : ch == lineObj.text.length ? \"before\" :\n        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?\n        \"after\" : \"before\";\n      // Now get accurate coordinates for this place, in order to get a\n      // base X position\n      var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), \"line\", lineObj, preparedMeasure);\n      baseX = coords.left;\n      outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;\n    }\n\n    ch = skipExtendingChars(lineObj.text, ch, 1);\n    return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)\n  }\n\n  function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {\n    // Bidi parts are sorted left-to-right, and in a non-line-wrapping\n    // situation, we can take this ordering to correspond to the visual\n    // ordering. This finds the first part whose end is after the given\n    // coordinates.\n    var index = findFirst(function (i) {\n      var part = order[i], ltr = part.level != 1;\n      return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? \"before\" : \"after\"),\n                                     \"line\", lineObj, preparedMeasure), x, y, true)\n    }, 0, order.length - 1);\n    var part = order[index];\n    // If this isn't the first part, the part's start is also after\n    // the coordinates, and the coordinates aren't on the same line as\n    // that start, move one part back.\n    if (index > 0) {\n      var ltr = part.level != 1;\n      var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? \"after\" : \"before\"),\n                               \"line\", lineObj, preparedMeasure);\n      if (boxIsAfter(start, x, y, true) && start.top > y)\n        { part = order[index - 1]; }\n    }\n    return part\n  }\n\n  function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {\n    // In a wrapped line, rtl text on wrapping boundaries can do things\n    // that don't correspond to the ordering in our `order` array at\n    // all, so a binary search doesn't work, and we want to return a\n    // part that only spans one line so that the binary search in\n    // coordsCharInner is safe. As such, we first find the extent of the\n    // wrapped line, and then do a flat search in which we discard any\n    // spans that aren't on the line.\n    var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);\n    var begin = ref.begin;\n    var end = ref.end;\n    if (/\\s/.test(lineObj.text.charAt(end - 1))) { end--; }\n    var part = null, closestDist = null;\n    for (var i = 0; i < order.length; i++) {\n      var p = order[i];\n      if (p.from >= end || p.to <= begin) { continue }\n      var ltr = p.level != 1;\n      var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;\n      // Weigh against spans ending before this, so that they are only\n      // picked if nothing ends after\n      var dist = endX < x ? x - endX + 1e9 : endX - x;\n      if (!part || closestDist > dist) {\n        part = p;\n        closestDist = dist;\n      }\n    }\n    if (!part) { part = order[order.length - 1]; }\n    // Clip the part to the wrapped line.\n    if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }\n    if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }\n    return part\n  }\n\n  var measureText;\n  // Compute the default text height.\n  function textHeight(display) {\n    if (display.cachedTextHeight != null) { return display.cachedTextHeight }\n    if (measureText == null) {\n      measureText = elt(\"pre\", null, \"CodeMirror-line-like\");\n      // Measure a bunch of lines, for browsers that compute\n      // fractional heights.\n      for (var i = 0; i < 49; ++i) {\n        measureText.appendChild(document.createTextNode(\"x\"));\n        measureText.appendChild(elt(\"br\"));\n      }\n      measureText.appendChild(document.createTextNode(\"x\"));\n    }\n    removeChildrenAndAdd(display.measure, measureText);\n    var height = measureText.offsetHeight / 50;\n    if (height > 3) { display.cachedTextHeight = height; }\n    removeChildren(display.measure);\n    return height || 1\n  }\n\n  // Compute the default character width.\n  function charWidth(display) {\n    if (display.cachedCharWidth != null) { return display.cachedCharWidth }\n    var anchor = elt(\"span\", \"xxxxxxxxxx\");\n    var pre = elt(\"pre\", [anchor], \"CodeMirror-line-like\");\n    removeChildrenAndAdd(display.measure, pre);\n    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;\n    if (width > 2) { display.cachedCharWidth = width; }\n    return width || 10\n  }\n\n  // Do a bulk-read of the DOM positions and sizes needed to draw the\n  // view, so that we don't interleave reading and writing to the DOM.\n  function getDimensions(cm) {\n    var d = cm.display, left = {}, width = {};\n    var gutterLeft = d.gutters.clientLeft;\n    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {\n      var id = cm.display.gutterSpecs[i].className;\n      left[id] = n.offsetLeft + n.clientLeft + gutterLeft;\n      width[id] = n.clientWidth;\n    }\n    return {fixedPos: compensateForHScroll(d),\n            gutterTotalWidth: d.gutters.offsetWidth,\n            gutterLeft: left,\n            gutterWidth: width,\n            wrapperWidth: d.wrapper.clientWidth}\n  }\n\n  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,\n  // but using getBoundingClientRect to get a sub-pixel-accurate\n  // result.\n  function compensateForHScroll(display) {\n    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left\n  }\n\n  // Returns a function that estimates the height of a line, to use as\n  // first approximation until the line becomes visible (and is thus\n  // properly measurable).\n  function estimateHeight(cm) {\n    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;\n    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);\n    return function (line) {\n      if (lineIsHidden(cm.doc, line)) { return 0 }\n\n      var widgetsHeight = 0;\n      if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {\n        if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }\n      } }\n\n      if (wrapping)\n        { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }\n      else\n        { return widgetsHeight + th }\n    }\n  }\n\n  function estimateLineHeights(cm) {\n    var doc = cm.doc, est = estimateHeight(cm);\n    doc.iter(function (line) {\n      var estHeight = est(line);\n      if (estHeight != line.height) { updateLineHeight(line, estHeight); }\n    });\n  }\n\n  // Given a mouse event, find the corresponding position. If liberal\n  // is false, it checks whether a gutter or scrollbar was clicked,\n  // and returns null if it was. forRect is used by rectangular\n  // selections, and tries to estimate a character position even for\n  // coordinates beyond the right of the text.\n  function posFromMouse(cm, e, liberal, forRect) {\n    var display = cm.display;\n    if (!liberal && e_target(e).getAttribute(\"cm-not-content\") == \"true\") { return null }\n\n    var x, y, space = display.lineSpace.getBoundingClientRect();\n    // Fails unpredictably on IE[67] when mouse is dragged around quickly.\n    try { x = e.clientX - space.left; y = e.clientY - space.top; }\n    catch (e) { return null }\n    var coords = coordsChar(cm, x, y), line;\n    if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {\n      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;\n      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));\n    }\n    return coords\n  }\n\n  // Find the view element corresponding to a given line. Return null\n  // when the line isn't visible.\n  function findViewIndex(cm, n) {\n    if (n >= cm.display.viewTo) { return null }\n    n -= cm.display.viewFrom;\n    if (n < 0) { return null }\n    var view = cm.display.view;\n    for (var i = 0; i < view.length; i++) {\n      n -= view[i].size;\n      if (n < 0) { return i }\n    }\n  }\n\n  // Updates the display.view data structure for a given change to the\n  // document. From and to are in pre-change coordinates. Lendiff is\n  // the amount of lines added or subtracted by the change. This is\n  // used for changes that span multiple lines, or change the way\n  // lines are divided into visual lines. regLineChange (below)\n  // registers single-line changes.\n  function regChange(cm, from, to, lendiff) {\n    if (from == null) { from = cm.doc.first; }\n    if (to == null) { to = cm.doc.first + cm.doc.size; }\n    if (!lendiff) { lendiff = 0; }\n\n    var display = cm.display;\n    if (lendiff && to < display.viewTo &&\n        (display.updateLineNumbers == null || display.updateLineNumbers > from))\n      { display.updateLineNumbers = from; }\n\n    cm.curOp.viewChanged = true;\n\n    if (from >= display.viewTo) { // Change after\n      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)\n        { resetView(cm); }\n    } else if (to <= display.viewFrom) { // Change before\n      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {\n        resetView(cm);\n      } else {\n        display.viewFrom += lendiff;\n        display.viewTo += lendiff;\n      }\n    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap\n      resetView(cm);\n    } else if (from <= display.viewFrom) { // Top overlap\n      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);\n      if (cut) {\n        display.view = display.view.slice(cut.index);\n        display.viewFrom = cut.lineN;\n        display.viewTo += lendiff;\n      } else {\n        resetView(cm);\n      }\n    } else if (to >= display.viewTo) { // Bottom overlap\n      var cut$1 = viewCuttingPoint(cm, from, from, -1);\n      if (cut$1) {\n        display.view = display.view.slice(0, cut$1.index);\n        display.viewTo = cut$1.lineN;\n      } else {\n        resetView(cm);\n      }\n    } else { // Gap in the middle\n      var cutTop = viewCuttingPoint(cm, from, from, -1);\n      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);\n      if (cutTop && cutBot) {\n        display.view = display.view.slice(0, cutTop.index)\n          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))\n          .concat(display.view.slice(cutBot.index));\n        display.viewTo += lendiff;\n      } else {\n        resetView(cm);\n      }\n    }\n\n    var ext = display.externalMeasured;\n    if (ext) {\n      if (to < ext.lineN)\n        { ext.lineN += lendiff; }\n      else if (from < ext.lineN + ext.size)\n        { display.externalMeasured = null; }\n    }\n  }\n\n  // Register a change to a single line. Type must be one of \"text\",\n  // \"gutter\", \"class\", \"widget\"\n  function regLineChange(cm, line, type) {\n    cm.curOp.viewChanged = true;\n    var display = cm.display, ext = cm.display.externalMeasured;\n    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)\n      { display.externalMeasured = null; }\n\n    if (line < display.viewFrom || line >= display.viewTo) { return }\n    var lineView = display.view[findViewIndex(cm, line)];\n    if (lineView.node == null) { return }\n    var arr = lineView.changes || (lineView.changes = []);\n    if (indexOf(arr, type) == -1) { arr.push(type); }\n  }\n\n  // Clear the view.\n  function resetView(cm) {\n    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;\n    cm.display.view = [];\n    cm.display.viewOffset = 0;\n  }\n\n  function viewCuttingPoint(cm, oldN, newN, dir) {\n    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;\n    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)\n      { return {index: index, lineN: newN} }\n    var n = cm.display.viewFrom;\n    for (var i = 0; i < index; i++)\n      { n += view[i].size; }\n    if (n != oldN) {\n      if (dir > 0) {\n        if (index == view.length - 1) { return null }\n        diff = (n + view[index].size) - oldN;\n        index++;\n      } else {\n        diff = n - oldN;\n      }\n      oldN += diff; newN += diff;\n    }\n    while (visualLineNo(cm.doc, newN) != newN) {\n      if (index == (dir < 0 ? 0 : view.length - 1)) { return null }\n      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;\n      index += dir;\n    }\n    return {index: index, lineN: newN}\n  }\n\n  // Force the view to cover a given range, adding empty view element\n  // or clipping off existing ones as needed.\n  function adjustView(cm, from, to) {\n    var display = cm.display, view = display.view;\n    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {\n      display.view = buildViewArray(cm, from, to);\n      display.viewFrom = from;\n    } else {\n      if (display.viewFrom > from)\n        { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }\n      else if (display.viewFrom < from)\n        { display.view = display.view.slice(findViewIndex(cm, from)); }\n      display.viewFrom = from;\n      if (display.viewTo < to)\n        { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }\n      else if (display.viewTo > to)\n        { display.view = display.view.slice(0, findViewIndex(cm, to)); }\n    }\n    display.viewTo = to;\n  }\n\n  // Count the number of lines in the view whose DOM representation is\n  // out of date (or nonexistent).\n  function countDirtyView(cm) {\n    var view = cm.display.view, dirty = 0;\n    for (var i = 0; i < view.length; i++) {\n      var lineView = view[i];\n      if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }\n    }\n    return dirty\n  }\n\n  function updateSelection(cm) {\n    cm.display.input.showSelection(cm.display.input.prepareSelection());\n  }\n\n  function prepareSelection(cm, primary) {\n    if ( primary === void 0 ) primary = true;\n\n    var doc = cm.doc, result = {};\n    var curFragment = result.cursors = document.createDocumentFragment();\n    var selFragment = result.selection = document.createDocumentFragment();\n\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\n      if (!primary && i == doc.sel.primIndex) { continue }\n      var range = doc.sel.ranges[i];\n      if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }\n      var collapsed = range.empty();\n      if (collapsed || cm.options.showCursorWhenSelecting)\n        { drawSelectionCursor(cm, range.head, curFragment); }\n      if (!collapsed)\n        { drawSelectionRange(cm, range, selFragment); }\n    }\n    return result\n  }\n\n  // Draws a cursor for the given range\n  function drawSelectionCursor(cm, head, output) {\n    var pos = cursorCoords(cm, head, \"div\", null, null, !cm.options.singleCursorHeightPerLine);\n\n    var cursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor\"));\n    cursor.style.left = pos.left + \"px\";\n    cursor.style.top = pos.top + \"px\";\n    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + \"px\";\n\n    if (pos.other) {\n      // Secondary cursor, shown when on a 'jump' in bi-directional text\n      var otherCursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor CodeMirror-secondarycursor\"));\n      otherCursor.style.display = \"\";\n      otherCursor.style.left = pos.other.left + \"px\";\n      otherCursor.style.top = pos.other.top + \"px\";\n      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + \"px\";\n    }\n  }\n\n  function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }\n\n  // Draws the given range as a highlighted selection\n  function drawSelectionRange(cm, range, output) {\n    var display = cm.display, doc = cm.doc;\n    var fragment = document.createDocumentFragment();\n    var padding = paddingH(cm.display), leftSide = padding.left;\n    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;\n    var docLTR = doc.direction == \"ltr\";\n\n    function add(left, top, width, bottom) {\n      if (top < 0) { top = 0; }\n      top = Math.round(top);\n      bottom = Math.round(bottom);\n      fragment.appendChild(elt(\"div\", null, \"CodeMirror-selected\", (\"position: absolute; left: \" + left + \"px;\\n                             top: \" + top + \"px; width: \" + (width == null ? rightSide - left : width) + \"px;\\n                             height: \" + (bottom - top) + \"px\")));\n    }\n\n    function drawForLine(line, fromArg, toArg) {\n      var lineObj = getLine(doc, line);\n      var lineLen = lineObj.text.length;\n      var start, end;\n      function coords(ch, bias) {\n        return charCoords(cm, Pos(line, ch), \"div\", lineObj, bias)\n      }\n\n      function wrapX(pos, dir, side) {\n        var extent = wrappedLineExtentChar(cm, lineObj, null, pos);\n        var prop = (dir == \"ltr\") == (side == \"after\") ? \"left\" : \"right\";\n        var ch = side == \"after\" ? extent.begin : extent.end - (/\\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);\n        return coords(ch, prop)[prop]\n      }\n\n      var order = getOrder(lineObj, doc.direction);\n      iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {\n        var ltr = dir == \"ltr\";\n        var fromPos = coords(from, ltr ? \"left\" : \"right\");\n        var toPos = coords(to - 1, ltr ? \"right\" : \"left\");\n\n        var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;\n        var first = i == 0, last = !order || i == order.length - 1;\n        if (toPos.top - fromPos.top <= 3) { // Single line\n          var openLeft = (docLTR ? openStart : openEnd) && first;\n          var openRight = (docLTR ? openEnd : openStart) && last;\n          var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;\n          var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;\n          add(left, fromPos.top, right - left, fromPos.bottom);\n        } else { // Multiple lines\n          var topLeft, topRight, botLeft, botRight;\n          if (ltr) {\n            topLeft = docLTR && openStart && first ? leftSide : fromPos.left;\n            topRight = docLTR ? rightSide : wrapX(from, dir, \"before\");\n            botLeft = docLTR ? leftSide : wrapX(to, dir, \"after\");\n            botRight = docLTR && openEnd && last ? rightSide : toPos.right;\n          } else {\n            topLeft = !docLTR ? leftSide : wrapX(from, dir, \"before\");\n            topRight = !docLTR && openStart && first ? rightSide : fromPos.right;\n            botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;\n            botRight = !docLTR ? rightSide : wrapX(to, dir, \"after\");\n          }\n          add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);\n          if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }\n          add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);\n        }\n\n        if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }\n        if (cmpCoords(toPos, start) < 0) { start = toPos; }\n        if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }\n        if (cmpCoords(toPos, end) < 0) { end = toPos; }\n      });\n      return {start: start, end: end}\n    }\n\n    var sFrom = range.from(), sTo = range.to();\n    if (sFrom.line == sTo.line) {\n      drawForLine(sFrom.line, sFrom.ch, sTo.ch);\n    } else {\n      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);\n      var singleVLine = visualLine(fromLine) == visualLine(toLine);\n      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;\n      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;\n      if (singleVLine) {\n        if (leftEnd.top < rightStart.top - 2) {\n          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);\n          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);\n        } else {\n          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);\n        }\n      }\n      if (leftEnd.bottom < rightStart.top)\n        { add(leftSide, leftEnd.bottom, null, rightStart.top); }\n    }\n\n    output.appendChild(fragment);\n  }\n\n  // Cursor-blinking\n  function restartBlink(cm) {\n    if (!cm.state.focused) { return }\n    var display = cm.display;\n    clearInterval(display.blinker);\n    var on = true;\n    display.cursorDiv.style.visibility = \"\";\n    if (cm.options.cursorBlinkRate > 0)\n      { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? \"\" : \"hidden\"; },\n        cm.options.cursorBlinkRate); }\n    else if (cm.options.cursorBlinkRate < 0)\n      { display.cursorDiv.style.visibility = \"hidden\"; }\n  }\n\n  function ensureFocus(cm) {\n    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }\n  }\n\n  function delayBlurEvent(cm) {\n    cm.state.delayingBlurEvent = true;\n    setTimeout(function () { if (cm.state.delayingBlurEvent) {\n      cm.state.delayingBlurEvent = false;\n      onBlur(cm);\n    } }, 100);\n  }\n\n  function onFocus(cm, e) {\n    if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }\n\n    if (cm.options.readOnly == \"nocursor\") { return }\n    if (!cm.state.focused) {\n      signal(cm, \"focus\", cm, e);\n      cm.state.focused = true;\n      addClass(cm.display.wrapper, \"CodeMirror-focused\");\n      // This test prevents this from firing when a context\n      // menu is closed (since the input reset would kill the\n      // select-all detection hack)\n      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {\n        cm.display.input.reset();\n        if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730\n      }\n      cm.display.input.receivedFocus();\n    }\n    restartBlink(cm);\n  }\n  function onBlur(cm, e) {\n    if (cm.state.delayingBlurEvent) { return }\n\n    if (cm.state.focused) {\n      signal(cm, \"blur\", cm, e);\n      cm.state.focused = false;\n      rmClass(cm.display.wrapper, \"CodeMirror-focused\");\n    }\n    clearInterval(cm.display.blinker);\n    setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);\n  }\n\n  // Read the actual heights of the rendered lines, and update their\n  // stored heights to match.\n  function updateHeightsInViewport(cm) {\n    var display = cm.display;\n    var prevBottom = display.lineDiv.offsetTop;\n    for (var i = 0; i < display.view.length; i++) {\n      var cur = display.view[i], wrapping = cm.options.lineWrapping;\n      var height = (void 0), width = 0;\n      if (cur.hidden) { continue }\n      if (ie && ie_version < 8) {\n        var bot = cur.node.offsetTop + cur.node.offsetHeight;\n        height = bot - prevBottom;\n        prevBottom = bot;\n      } else {\n        var box = cur.node.getBoundingClientRect();\n        height = box.bottom - box.top;\n        // Check that lines don't extend past the right of the current\n        // editor width\n        if (!wrapping && cur.text.firstChild)\n          { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }\n      }\n      var diff = cur.line.height - height;\n      if (diff > .005 || diff < -.005) {\n        updateLineHeight(cur.line, height);\n        updateWidgetHeight(cur.line);\n        if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)\n          { updateWidgetHeight(cur.rest[j]); } }\n      }\n      if (width > cm.display.sizerWidth) {\n        var chWidth = Math.ceil(width / charWidth(cm.display));\n        if (chWidth > cm.display.maxLineLength) {\n          cm.display.maxLineLength = chWidth;\n          cm.display.maxLine = cur.line;\n          cm.display.maxLineChanged = true;\n        }\n      }\n    }\n  }\n\n  // Read and store the height of line widgets associated with the\n  // given line.\n  function updateWidgetHeight(line) {\n    if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {\n      var w = line.widgets[i], parent = w.node.parentNode;\n      if (parent) { w.height = parent.offsetHeight; }\n    } }\n  }\n\n  // Compute the lines that are visible in a given viewport (defaults\n  // the the current scroll position). viewport may contain top,\n  // height, and ensure (see op.scrollToPos) properties.\n  function visibleLines(display, doc, viewport) {\n    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;\n    top = Math.floor(top - paddingTop(display));\n    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;\n\n    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);\n    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and\n    // forces those lines into the viewport (if possible).\n    if (viewport && viewport.ensure) {\n      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;\n      if (ensureFrom < from) {\n        from = ensureFrom;\n        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);\n      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {\n        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);\n        to = ensureTo;\n      }\n    }\n    return {from: from, to: Math.max(to, from + 1)}\n  }\n\n  // SCROLLING THINGS INTO VIEW\n\n  // If an editor sits on the top or bottom of the window, partially\n  // scrolled out of view, this ensures that the cursor is visible.\n  function maybeScrollWindow(cm, rect) {\n    if (signalDOMEvent(cm, \"scrollCursorIntoView\")) { return }\n\n    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;\n    if (rect.top + box.top < 0) { doScroll = true; }\n    else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }\n    if (doScroll != null && !phantom) {\n      var scrollNode = elt(\"div\", \"\\u200b\", null, (\"position: absolute;\\n                         top: \" + (rect.top - display.viewOffset - paddingTop(cm.display)) + \"px;\\n                         height: \" + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + \"px;\\n                         left: \" + (rect.left) + \"px; width: \" + (Math.max(2, rect.right - rect.left)) + \"px;\"));\n      cm.display.lineSpace.appendChild(scrollNode);\n      scrollNode.scrollIntoView(doScroll);\n      cm.display.lineSpace.removeChild(scrollNode);\n    }\n  }\n\n  // Scroll a given position into view (immediately), verifying that\n  // it actually became visible (as line heights are accurately\n  // measured, the position of something may 'drift' during drawing).\n  function scrollPosIntoView(cm, pos, end, margin) {\n    if (margin == null) { margin = 0; }\n    var rect;\n    if (!cm.options.lineWrapping && pos == end) {\n      // Set pos and end to the cursor positions around the character pos sticks to\n      // If pos.sticky == \"before\", that is around pos.ch - 1, otherwise around pos.ch\n      // If pos == Pos(_, 0, \"before\"), pos and end are unchanged\n      pos = pos.ch ? Pos(pos.line, pos.sticky == \"before\" ? pos.ch - 1 : pos.ch, \"after\") : pos;\n      end = pos.sticky == \"before\" ? Pos(pos.line, pos.ch + 1, \"before\") : pos;\n    }\n    for (var limit = 0; limit < 5; limit++) {\n      var changed = false;\n      var coords = cursorCoords(cm, pos);\n      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);\n      rect = {left: Math.min(coords.left, endCoords.left),\n              top: Math.min(coords.top, endCoords.top) - margin,\n              right: Math.max(coords.left, endCoords.left),\n              bottom: Math.max(coords.bottom, endCoords.bottom) + margin};\n      var scrollPos = calculateScrollPos(cm, rect);\n      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;\n      if (scrollPos.scrollTop != null) {\n        updateScrollTop(cm, scrollPos.scrollTop);\n        if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }\n      }\n      if (scrollPos.scrollLeft != null) {\n        setScrollLeft(cm, scrollPos.scrollLeft);\n        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }\n      }\n      if (!changed) { break }\n    }\n    return rect\n  }\n\n  // Scroll a given set of coordinates into view (immediately).\n  function scrollIntoView(cm, rect) {\n    var scrollPos = calculateScrollPos(cm, rect);\n    if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }\n    if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }\n  }\n\n  // Calculate a new scroll position needed to scroll the given\n  // rectangle into view. Returns an object with scrollTop and\n  // scrollLeft properties. When these are undefined, the\n  // vertical/horizontal position does not need to be adjusted.\n  function calculateScrollPos(cm, rect) {\n    var display = cm.display, snapMargin = textHeight(cm.display);\n    if (rect.top < 0) { rect.top = 0; }\n    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;\n    var screen = displayHeight(cm), result = {};\n    if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }\n    var docBottom = cm.doc.height + paddingVert(display);\n    var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;\n    if (rect.top < screentop) {\n      result.scrollTop = atTop ? 0 : rect.top;\n    } else if (rect.bottom > screentop + screen) {\n      var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);\n      if (newTop != screentop) { result.scrollTop = newTop; }\n    }\n\n    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;\n    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);\n    var tooWide = rect.right - rect.left > screenw;\n    if (tooWide) { rect.right = rect.left + screenw; }\n    if (rect.left < 10)\n      { result.scrollLeft = 0; }\n    else if (rect.left < screenleft)\n      { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); }\n    else if (rect.right > screenw + screenleft - 3)\n      { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }\n    return result\n  }\n\n  // Store a relative adjustment to the scroll position in the current\n  // operation (to be applied when the operation finishes).\n  function addToScrollTop(cm, top) {\n    if (top == null) { return }\n    resolveScrollToPos(cm);\n    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;\n  }\n\n  // Make sure that at the end of the operation the current cursor is\n  // shown.\n  function ensureCursorVisible(cm) {\n    resolveScrollToPos(cm);\n    var cur = cm.getCursor();\n    cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};\n  }\n\n  function scrollToCoords(cm, x, y) {\n    if (x != null || y != null) { resolveScrollToPos(cm); }\n    if (x != null) { cm.curOp.scrollLeft = x; }\n    if (y != null) { cm.curOp.scrollTop = y; }\n  }\n\n  function scrollToRange(cm, range) {\n    resolveScrollToPos(cm);\n    cm.curOp.scrollToPos = range;\n  }\n\n  // When an operation has its scrollToPos property set, and another\n  // scroll action is applied before the end of the operation, this\n  // 'simulates' scrolling that position into view in a cheap way, so\n  // that the effect of intermediate scroll commands is not ignored.\n  function resolveScrollToPos(cm) {\n    var range = cm.curOp.scrollToPos;\n    if (range) {\n      cm.curOp.scrollToPos = null;\n      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);\n      scrollToCoordsRange(cm, from, to, range.margin);\n    }\n  }\n\n  function scrollToCoordsRange(cm, from, to, margin) {\n    var sPos = calculateScrollPos(cm, {\n      left: Math.min(from.left, to.left),\n      top: Math.min(from.top, to.top) - margin,\n      right: Math.max(from.right, to.right),\n      bottom: Math.max(from.bottom, to.bottom) + margin\n    });\n    scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);\n  }\n\n  // Sync the scrollable area and scrollbars, ensure the viewport\n  // covers the visible area.\n  function updateScrollTop(cm, val) {\n    if (Math.abs(cm.doc.scrollTop - val) < 2) { return }\n    if (!gecko) { updateDisplaySimple(cm, {top: val}); }\n    setScrollTop(cm, val, true);\n    if (gecko) { updateDisplaySimple(cm); }\n    startWorker(cm, 100);\n  }\n\n  function setScrollTop(cm, val, forceScroll) {\n    val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));\n    if (cm.display.scroller.scrollTop == val && !forceScroll) { return }\n    cm.doc.scrollTop = val;\n    cm.display.scrollbars.setScrollTop(val);\n    if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }\n  }\n\n  // Sync scroller and scrollbar, ensure the gutter elements are\n  // aligned.\n  function setScrollLeft(cm, val, isScroller, forceScroll) {\n    val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));\n    if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }\n    cm.doc.scrollLeft = val;\n    alignHorizontally(cm);\n    if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }\n    cm.display.scrollbars.setScrollLeft(val);\n  }\n\n  // SCROLLBARS\n\n  // Prepare DOM reads needed to update the scrollbars. Done in one\n  // shot to minimize update/measure roundtrips.\n  function measureForScrollbars(cm) {\n    var d = cm.display, gutterW = d.gutters.offsetWidth;\n    var docH = Math.round(cm.doc.height + paddingVert(cm.display));\n    return {\n      clientHeight: d.scroller.clientHeight,\n      viewHeight: d.wrapper.clientHeight,\n      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,\n      viewWidth: d.wrapper.clientWidth,\n      barLeft: cm.options.fixedGutter ? gutterW : 0,\n      docHeight: docH,\n      scrollHeight: docH + scrollGap(cm) + d.barHeight,\n      nativeBarWidth: d.nativeBarWidth,\n      gutterWidth: gutterW\n    }\n  }\n\n  var NativeScrollbars = function(place, scroll, cm) {\n    this.cm = cm;\n    var vert = this.vert = elt(\"div\", [elt(\"div\", null, null, \"min-width: 1px\")], \"CodeMirror-vscrollbar\");\n    var horiz = this.horiz = elt(\"div\", [elt(\"div\", null, null, \"height: 100%; min-height: 1px\")], \"CodeMirror-hscrollbar\");\n    vert.tabIndex = horiz.tabIndex = -1;\n    place(vert); place(horiz);\n\n    on(vert, \"scroll\", function () {\n      if (vert.clientHeight) { scroll(vert.scrollTop, \"vertical\"); }\n    });\n    on(horiz, \"scroll\", function () {\n      if (horiz.clientWidth) { scroll(horiz.scrollLeft, \"horizontal\"); }\n    });\n\n    this.checkedZeroWidth = false;\n    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).\n    if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = \"18px\"; }\n  };\n\n  NativeScrollbars.prototype.update = function (measure) {\n    var needsH = measure.scrollWidth > measure.clientWidth + 1;\n    var needsV = measure.scrollHeight > measure.clientHeight + 1;\n    var sWidth = measure.nativeBarWidth;\n\n    if (needsV) {\n      this.vert.style.display = \"block\";\n      this.vert.style.bottom = needsH ? sWidth + \"px\" : \"0\";\n      var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);\n      // A bug in IE8 can cause this value to be negative, so guard it.\n      this.vert.firstChild.style.height =\n        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + \"px\";\n    } else {\n      this.vert.style.display = \"\";\n      this.vert.firstChild.style.height = \"0\";\n    }\n\n    if (needsH) {\n      this.horiz.style.display = \"block\";\n      this.horiz.style.right = needsV ? sWidth + \"px\" : \"0\";\n      this.horiz.style.left = measure.barLeft + \"px\";\n      var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);\n      this.horiz.firstChild.style.width =\n        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + \"px\";\n    } else {\n      this.horiz.style.display = \"\";\n      this.horiz.firstChild.style.width = \"0\";\n    }\n\n    if (!this.checkedZeroWidth && measure.clientHeight > 0) {\n      if (sWidth == 0) { this.zeroWidthHack(); }\n      this.checkedZeroWidth = true;\n    }\n\n    return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}\n  };\n\n  NativeScrollbars.prototype.setScrollLeft = function (pos) {\n    if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }\n    if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, \"horiz\"); }\n  };\n\n  NativeScrollbars.prototype.setScrollTop = function (pos) {\n    if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }\n    if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, \"vert\"); }\n  };\n\n  NativeScrollbars.prototype.zeroWidthHack = function () {\n    var w = mac && !mac_geMountainLion ? \"12px\" : \"18px\";\n    this.horiz.style.height = this.vert.style.width = w;\n    this.horiz.style.pointerEvents = this.vert.style.pointerEvents = \"none\";\n    this.disableHoriz = new Delayed;\n    this.disableVert = new Delayed;\n  };\n\n  NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {\n    bar.style.pointerEvents = \"auto\";\n    function maybeDisable() {\n      // To find out whether the scrollbar is still visible, we\n      // check whether the element under the pixel in the bottom\n      // right corner of the scrollbar box is the scrollbar box\n      // itself (when the bar is still visible) or its filler child\n      // (when the bar is hidden). If it is still visible, we keep\n      // it enabled, if it's hidden, we disable pointer events.\n      var box = bar.getBoundingClientRect();\n      var elt = type == \"vert\" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)\n          : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);\n      if (elt != bar) { bar.style.pointerEvents = \"none\"; }\n      else { delay.set(1000, maybeDisable); }\n    }\n    delay.set(1000, maybeDisable);\n  };\n\n  NativeScrollbars.prototype.clear = function () {\n    var parent = this.horiz.parentNode;\n    parent.removeChild(this.horiz);\n    parent.removeChild(this.vert);\n  };\n\n  var NullScrollbars = function () {};\n\n  NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };\n  NullScrollbars.prototype.setScrollLeft = function () {};\n  NullScrollbars.prototype.setScrollTop = function () {};\n  NullScrollbars.prototype.clear = function () {};\n\n  function updateScrollbars(cm, measure) {\n    if (!measure) { measure = measureForScrollbars(cm); }\n    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;\n    updateScrollbarsInner(cm, measure);\n    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {\n      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)\n        { updateHeightsInViewport(cm); }\n      updateScrollbarsInner(cm, measureForScrollbars(cm));\n      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;\n    }\n  }\n\n  // Re-synchronize the fake scrollbars with the actual size of the\n  // content.\n  function updateScrollbarsInner(cm, measure) {\n    var d = cm.display;\n    var sizes = d.scrollbars.update(measure);\n\n    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + \"px\";\n    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + \"px\";\n    d.heightForcer.style.borderBottom = sizes.bottom + \"px solid transparent\";\n\n    if (sizes.right && sizes.bottom) {\n      d.scrollbarFiller.style.display = \"block\";\n      d.scrollbarFiller.style.height = sizes.bottom + \"px\";\n      d.scrollbarFiller.style.width = sizes.right + \"px\";\n    } else { d.scrollbarFiller.style.display = \"\"; }\n    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {\n      d.gutterFiller.style.display = \"block\";\n      d.gutterFiller.style.height = sizes.bottom + \"px\";\n      d.gutterFiller.style.width = measure.gutterWidth + \"px\";\n    } else { d.gutterFiller.style.display = \"\"; }\n  }\n\n  var scrollbarModel = {\"native\": NativeScrollbars, \"null\": NullScrollbars};\n\n  function initScrollbars(cm) {\n    if (cm.display.scrollbars) {\n      cm.display.scrollbars.clear();\n      if (cm.display.scrollbars.addClass)\n        { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }\n    }\n\n    cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {\n      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);\n      // Prevent clicks in the scrollbars from killing focus\n      on(node, \"mousedown\", function () {\n        if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }\n      });\n      node.setAttribute(\"cm-not-content\", \"true\");\n    }, function (pos, axis) {\n      if (axis == \"horizontal\") { setScrollLeft(cm, pos); }\n      else { updateScrollTop(cm, pos); }\n    }, cm);\n    if (cm.display.scrollbars.addClass)\n      { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }\n  }\n\n  // Operations are used to wrap a series of changes to the editor\n  // state in such a way that each change won't have to update the\n  // cursor and display (which would be awkward, slow, and\n  // error-prone). Instead, display updates are batched and then all\n  // combined and executed at once.\n\n  var nextOpId = 0;\n  // Start a new operation.\n  function startOperation(cm) {\n    cm.curOp = {\n      cm: cm,\n      viewChanged: false,      // Flag that indicates that lines might need to be redrawn\n      startHeight: cm.doc.height, // Used to detect need to update scrollbar\n      forceUpdate: false,      // Used to force a redraw\n      updateInput: 0,       // Whether to reset the input textarea\n      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)\n      changeObjs: null,        // Accumulated changes, for firing change events\n      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on\n      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already\n      selectionChanged: false, // Whether the selection needs to be redrawn\n      updateMaxLine: false,    // Set when the widest line needs to be determined anew\n      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet\n      scrollToPos: null,       // Used to scroll to a specific position\n      focus: false,\n      id: ++nextOpId           // Unique ID\n    };\n    pushOperation(cm.curOp);\n  }\n\n  // Finish an operation, updating the display and signalling delayed events\n  function endOperation(cm) {\n    var op = cm.curOp;\n    if (op) { finishOperation(op, function (group) {\n      for (var i = 0; i < group.ops.length; i++)\n        { group.ops[i].cm.curOp = null; }\n      endOperations(group);\n    }); }\n  }\n\n  // The DOM updates done when an operation finishes are batched so\n  // that the minimum number of relayouts are required.\n  function endOperations(group) {\n    var ops = group.ops;\n    for (var i = 0; i < ops.length; i++) // Read DOM\n      { endOperation_R1(ops[i]); }\n    for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)\n      { endOperation_W1(ops[i$1]); }\n    for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM\n      { endOperation_R2(ops[i$2]); }\n    for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)\n      { endOperation_W2(ops[i$3]); }\n    for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM\n      { endOperation_finish(ops[i$4]); }\n  }\n\n  function endOperation_R1(op) {\n    var cm = op.cm, display = cm.display;\n    maybeClipScrollbars(cm);\n    if (op.updateMaxLine) { findMaxLine(cm); }\n\n    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||\n      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||\n                         op.scrollToPos.to.line >= display.viewTo) ||\n      display.maxLineChanged && cm.options.lineWrapping;\n    op.update = op.mustUpdate &&\n      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);\n  }\n\n  function endOperation_W1(op) {\n    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);\n  }\n\n  function endOperation_R2(op) {\n    var cm = op.cm, display = cm.display;\n    if (op.updatedDisplay) { updateHeightsInViewport(cm); }\n\n    op.barMeasure = measureForScrollbars(cm);\n\n    // If the max line changed since it was last measured, measure it,\n    // and ensure the document's width matches it.\n    // updateDisplay_W2 will use these properties to do the actual resizing\n    if (display.maxLineChanged && !cm.options.lineWrapping) {\n      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;\n      cm.display.sizerWidth = op.adjustWidthTo;\n      op.barMeasure.scrollWidth =\n        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);\n      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));\n    }\n\n    if (op.updatedDisplay || op.selectionChanged)\n      { op.preparedSelection = display.input.prepareSelection(); }\n  }\n\n  function endOperation_W2(op) {\n    var cm = op.cm;\n\n    if (op.adjustWidthTo != null) {\n      cm.display.sizer.style.minWidth = op.adjustWidthTo + \"px\";\n      if (op.maxScrollLeft < cm.doc.scrollLeft)\n        { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }\n      cm.display.maxLineChanged = false;\n    }\n\n    var takeFocus = op.focus && op.focus == activeElt();\n    if (op.preparedSelection)\n      { cm.display.input.showSelection(op.preparedSelection, takeFocus); }\n    if (op.updatedDisplay || op.startHeight != cm.doc.height)\n      { updateScrollbars(cm, op.barMeasure); }\n    if (op.updatedDisplay)\n      { setDocumentHeight(cm, op.barMeasure); }\n\n    if (op.selectionChanged) { restartBlink(cm); }\n\n    if (cm.state.focused && op.updateInput)\n      { cm.display.input.reset(op.typing); }\n    if (takeFocus) { ensureFocus(op.cm); }\n  }\n\n  function endOperation_finish(op) {\n    var cm = op.cm, display = cm.display, doc = cm.doc;\n\n    if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }\n\n    // Abort mouse wheel delta measurement, when scrolling explicitly\n    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))\n      { display.wheelStartX = display.wheelStartY = null; }\n\n    // Propagate the scroll position to the actual DOM scroller\n    if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }\n\n    if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }\n    // If we need to scroll a specific position into view, do so.\n    if (op.scrollToPos) {\n      var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),\n                                   clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);\n      maybeScrollWindow(cm, rect);\n    }\n\n    // Fire events for markers that are hidden/unidden by editing or\n    // undoing\n    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;\n    if (hidden) { for (var i = 0; i < hidden.length; ++i)\n      { if (!hidden[i].lines.length) { signal(hidden[i], \"hide\"); } } }\n    if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)\n      { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], \"unhide\"); } } }\n\n    if (display.wrapper.offsetHeight)\n      { doc.scrollTop = cm.display.scroller.scrollTop; }\n\n    // Fire change events, and delayed event handlers\n    if (op.changeObjs)\n      { signal(cm, \"changes\", cm, op.changeObjs); }\n    if (op.update)\n      { op.update.finish(); }\n  }\n\n  // Run the given function in an operation\n  function runInOp(cm, f) {\n    if (cm.curOp) { return f() }\n    startOperation(cm);\n    try { return f() }\n    finally { endOperation(cm); }\n  }\n  // Wraps a function in an operation. Returns the wrapped function.\n  function operation(cm, f) {\n    return function() {\n      if (cm.curOp) { return f.apply(cm, arguments) }\n      startOperation(cm);\n      try { return f.apply(cm, arguments) }\n      finally { endOperation(cm); }\n    }\n  }\n  // Used to add methods to editor and doc instances, wrapping them in\n  // operations.\n  function methodOp(f) {\n    return function() {\n      if (this.curOp) { return f.apply(this, arguments) }\n      startOperation(this);\n      try { return f.apply(this, arguments) }\n      finally { endOperation(this); }\n    }\n  }\n  function docMethodOp(f) {\n    return function() {\n      var cm = this.cm;\n      if (!cm || cm.curOp) { return f.apply(this, arguments) }\n      startOperation(cm);\n      try { return f.apply(this, arguments) }\n      finally { endOperation(cm); }\n    }\n  }\n\n  // HIGHLIGHT WORKER\n\n  function startWorker(cm, time) {\n    if (cm.doc.highlightFrontier < cm.display.viewTo)\n      { cm.state.highlight.set(time, bind(highlightWorker, cm)); }\n  }\n\n  function highlightWorker(cm) {\n    var doc = cm.doc;\n    if (doc.highlightFrontier >= cm.display.viewTo) { return }\n    var end = +new Date + cm.options.workTime;\n    var context = getContextBefore(cm, doc.highlightFrontier);\n    var changedLines = [];\n\n    doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {\n      if (context.line >= cm.display.viewFrom) { // Visible\n        var oldStyles = line.styles;\n        var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;\n        var highlighted = highlightLine(cm, line, context, true);\n        if (resetState) { context.state = resetState; }\n        line.styles = highlighted.styles;\n        var oldCls = line.styleClasses, newCls = highlighted.classes;\n        if (newCls) { line.styleClasses = newCls; }\n        else if (oldCls) { line.styleClasses = null; }\n        var ischange = !oldStyles || oldStyles.length != line.styles.length ||\n          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);\n        for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }\n        if (ischange) { changedLines.push(context.line); }\n        line.stateAfter = context.save();\n        context.nextLine();\n      } else {\n        if (line.text.length <= cm.options.maxHighlightLength)\n          { processLine(cm, line.text, context); }\n        line.stateAfter = context.line % 5 == 0 ? context.save() : null;\n        context.nextLine();\n      }\n      if (+new Date > end) {\n        startWorker(cm, cm.options.workDelay);\n        return true\n      }\n    });\n    doc.highlightFrontier = context.line;\n    doc.modeFrontier = Math.max(doc.modeFrontier, context.line);\n    if (changedLines.length) { runInOp(cm, function () {\n      for (var i = 0; i < changedLines.length; i++)\n        { regLineChange(cm, changedLines[i], \"text\"); }\n    }); }\n  }\n\n  // DISPLAY DRAWING\n\n  var DisplayUpdate = function(cm, viewport, force) {\n    var display = cm.display;\n\n    this.viewport = viewport;\n    // Store some values that we'll need later (but don't want to force a relayout for)\n    this.visible = visibleLines(display, cm.doc, viewport);\n    this.editorIsHidden = !display.wrapper.offsetWidth;\n    this.wrapperHeight = display.wrapper.clientHeight;\n    this.wrapperWidth = display.wrapper.clientWidth;\n    this.oldDisplayWidth = displayWidth(cm);\n    this.force = force;\n    this.dims = getDimensions(cm);\n    this.events = [];\n  };\n\n  DisplayUpdate.prototype.signal = function (emitter, type) {\n    if (hasHandler(emitter, type))\n      { this.events.push(arguments); }\n  };\n  DisplayUpdate.prototype.finish = function () {\n    for (var i = 0; i < this.events.length; i++)\n      { signal.apply(null, this.events[i]); }\n  };\n\n  function maybeClipScrollbars(cm) {\n    var display = cm.display;\n    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {\n      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;\n      display.heightForcer.style.height = scrollGap(cm) + \"px\";\n      display.sizer.style.marginBottom = -display.nativeBarWidth + \"px\";\n      display.sizer.style.borderRightWidth = scrollGap(cm) + \"px\";\n      display.scrollbarsClipped = true;\n    }\n  }\n\n  function selectionSnapshot(cm) {\n    if (cm.hasFocus()) { return null }\n    var active = activeElt();\n    if (!active || !contains(cm.display.lineDiv, active)) { return null }\n    var result = {activeElt: active};\n    if (window.getSelection) {\n      var sel = window.getSelection();\n      if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {\n        result.anchorNode = sel.anchorNode;\n        result.anchorOffset = sel.anchorOffset;\n        result.focusNode = sel.focusNode;\n        result.focusOffset = sel.focusOffset;\n      }\n    }\n    return result\n  }\n\n  function restoreSelection(snapshot) {\n    if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }\n    snapshot.activeElt.focus();\n    if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {\n      var sel = window.getSelection(), range = document.createRange();\n      range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);\n      range.collapse(false);\n      sel.removeAllRanges();\n      sel.addRange(range);\n      sel.extend(snapshot.focusNode, snapshot.focusOffset);\n    }\n  }\n\n  // Does the actual updating of the line display. Bails out\n  // (returning false) when there is nothing to be done and forced is\n  // false.\n  function updateDisplayIfNeeded(cm, update) {\n    var display = cm.display, doc = cm.doc;\n\n    if (update.editorIsHidden) {\n      resetView(cm);\n      return false\n    }\n\n    // Bail out if the visible area is already rendered and nothing changed.\n    if (!update.force &&\n        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&\n        display.renderedView == display.view && countDirtyView(cm) == 0)\n      { return false }\n\n    if (maybeUpdateLineNumberWidth(cm)) {\n      resetView(cm);\n      update.dims = getDimensions(cm);\n    }\n\n    // Compute a suitable new viewport (from & to)\n    var end = doc.first + doc.size;\n    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);\n    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);\n    if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }\n    if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }\n    if (sawCollapsedSpans) {\n      from = visualLineNo(cm.doc, from);\n      to = visualLineEndNo(cm.doc, to);\n    }\n\n    var different = from != display.viewFrom || to != display.viewTo ||\n      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;\n    adjustView(cm, from, to);\n\n    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));\n    // Position the mover div to align with the current scroll position\n    cm.display.mover.style.top = display.viewOffset + \"px\";\n\n    var toUpdate = countDirtyView(cm);\n    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))\n      { return false }\n\n    // For big changes, we hide the enclosing element during the\n    // update, since that speeds up the operations on most browsers.\n    var selSnapshot = selectionSnapshot(cm);\n    if (toUpdate > 4) { display.lineDiv.style.display = \"none\"; }\n    patchDisplay(cm, display.updateLineNumbers, update.dims);\n    if (toUpdate > 4) { display.lineDiv.style.display = \"\"; }\n    display.renderedView = display.view;\n    // There might have been a widget with a focused element that got\n    // hidden or updated, if so re-focus it.\n    restoreSelection(selSnapshot);\n\n    // Prevent selection and cursors from interfering with the scroll\n    // width and height.\n    removeChildren(display.cursorDiv);\n    removeChildren(display.selectionDiv);\n    display.gutters.style.height = display.sizer.style.minHeight = 0;\n\n    if (different) {\n      display.lastWrapHeight = update.wrapperHeight;\n      display.lastWrapWidth = update.wrapperWidth;\n      startWorker(cm, 400);\n    }\n\n    display.updateLineNumbers = null;\n\n    return true\n  }\n\n  function postUpdateDisplay(cm, update) {\n    var viewport = update.viewport;\n\n    for (var first = true;; first = false) {\n      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {\n        // Clip forced viewport to actual scrollable area.\n        if (viewport && viewport.top != null)\n          { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }\n        // Updated line heights might result in the drawn area not\n        // actually covering the viewport. Keep looping until it does.\n        update.visible = visibleLines(cm.display, cm.doc, viewport);\n        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)\n          { break }\n      }\n      if (!updateDisplayIfNeeded(cm, update)) { break }\n      updateHeightsInViewport(cm);\n      var barMeasure = measureForScrollbars(cm);\n      updateSelection(cm);\n      updateScrollbars(cm, barMeasure);\n      setDocumentHeight(cm, barMeasure);\n      update.force = false;\n    }\n\n    update.signal(cm, \"update\", cm);\n    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {\n      update.signal(cm, \"viewportChange\", cm, cm.display.viewFrom, cm.display.viewTo);\n      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;\n    }\n  }\n\n  function updateDisplaySimple(cm, viewport) {\n    var update = new DisplayUpdate(cm, viewport);\n    if (updateDisplayIfNeeded(cm, update)) {\n      updateHeightsInViewport(cm);\n      postUpdateDisplay(cm, update);\n      var barMeasure = measureForScrollbars(cm);\n      updateSelection(cm);\n      updateScrollbars(cm, barMeasure);\n      setDocumentHeight(cm, barMeasure);\n      update.finish();\n    }\n  }\n\n  // Sync the actual display DOM structure with display.view, removing\n  // nodes for lines that are no longer in view, and creating the ones\n  // that are not there yet, and updating the ones that are out of\n  // date.\n  function patchDisplay(cm, updateNumbersFrom, dims) {\n    var display = cm.display, lineNumbers = cm.options.lineNumbers;\n    var container = display.lineDiv, cur = container.firstChild;\n\n    function rm(node) {\n      var next = node.nextSibling;\n      // Works around a throw-scroll bug in OS X Webkit\n      if (webkit && mac && cm.display.currentWheelTarget == node)\n        { node.style.display = \"none\"; }\n      else\n        { node.parentNode.removeChild(node); }\n      return next\n    }\n\n    var view = display.view, lineN = display.viewFrom;\n    // Loop over the elements in the view, syncing cur (the DOM nodes\n    // in display.lineDiv) with the view as we go.\n    for (var i = 0; i < view.length; i++) {\n      var lineView = view[i];\n      if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet\n        var node = buildLineElement(cm, lineView, lineN, dims);\n        container.insertBefore(node, cur);\n      } else { // Already drawn\n        while (cur != lineView.node) { cur = rm(cur); }\n        var updateNumber = lineNumbers && updateNumbersFrom != null &&\n          updateNumbersFrom <= lineN && lineView.lineNumber;\n        if (lineView.changes) {\n          if (indexOf(lineView.changes, \"gutter\") > -1) { updateNumber = false; }\n          updateLineForChanges(cm, lineView, lineN, dims);\n        }\n        if (updateNumber) {\n          removeChildren(lineView.lineNumber);\n          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));\n        }\n        cur = lineView.node.nextSibling;\n      }\n      lineN += lineView.size;\n    }\n    while (cur) { cur = rm(cur); }\n  }\n\n  function updateGutterSpace(display) {\n    var width = display.gutters.offsetWidth;\n    display.sizer.style.marginLeft = width + \"px\";\n  }\n\n  function setDocumentHeight(cm, measure) {\n    cm.display.sizer.style.minHeight = measure.docHeight + \"px\";\n    cm.display.heightForcer.style.top = measure.docHeight + \"px\";\n    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + \"px\";\n  }\n\n  // Re-align line numbers and gutter marks to compensate for\n  // horizontal scrolling.\n  function alignHorizontally(cm) {\n    var display = cm.display, view = display.view;\n    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }\n    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;\n    var gutterW = display.gutters.offsetWidth, left = comp + \"px\";\n    for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {\n      if (cm.options.fixedGutter) {\n        if (view[i].gutter)\n          { view[i].gutter.style.left = left; }\n        if (view[i].gutterBackground)\n          { view[i].gutterBackground.style.left = left; }\n      }\n      var align = view[i].alignable;\n      if (align) { for (var j = 0; j < align.length; j++)\n        { align[j].style.left = left; } }\n    } }\n    if (cm.options.fixedGutter)\n      { display.gutters.style.left = (comp + gutterW) + \"px\"; }\n  }\n\n  // Used to ensure that the line number gutter is still the right\n  // size for the current document size. Returns true when an update\n  // is needed.\n  function maybeUpdateLineNumberWidth(cm) {\n    if (!cm.options.lineNumbers) { return false }\n    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;\n    if (last.length != display.lineNumChars) {\n      var test = display.measure.appendChild(elt(\"div\", [elt(\"div\", last)],\n                                                 \"CodeMirror-linenumber CodeMirror-gutter-elt\"));\n      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;\n      display.lineGutter.style.width = \"\";\n      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;\n      display.lineNumWidth = display.lineNumInnerWidth + padding;\n      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;\n      display.lineGutter.style.width = display.lineNumWidth + \"px\";\n      updateGutterSpace(cm.display);\n      return true\n    }\n    return false\n  }\n\n  function getGutters(gutters, lineNumbers) {\n    var result = [], sawLineNumbers = false;\n    for (var i = 0; i < gutters.length; i++) {\n      var name = gutters[i], style = null;\n      if (typeof name != \"string\") { style = name.style; name = name.className; }\n      if (name == \"CodeMirror-linenumbers\") {\n        if (!lineNumbers) { continue }\n        else { sawLineNumbers = true; }\n      }\n      result.push({className: name, style: style});\n    }\n    if (lineNumbers && !sawLineNumbers) { result.push({className: \"CodeMirror-linenumbers\", style: null}); }\n    return result\n  }\n\n  // Rebuild the gutter elements, ensure the margin to the left of the\n  // code matches their width.\n  function renderGutters(display) {\n    var gutters = display.gutters, specs = display.gutterSpecs;\n    removeChildren(gutters);\n    display.lineGutter = null;\n    for (var i = 0; i < specs.length; ++i) {\n      var ref = specs[i];\n      var className = ref.className;\n      var style = ref.style;\n      var gElt = gutters.appendChild(elt(\"div\", null, \"CodeMirror-gutter \" + className));\n      if (style) { gElt.style.cssText = style; }\n      if (className == \"CodeMirror-linenumbers\") {\n        display.lineGutter = gElt;\n        gElt.style.width = (display.lineNumWidth || 1) + \"px\";\n      }\n    }\n    gutters.style.display = specs.length ? \"\" : \"none\";\n    updateGutterSpace(display);\n  }\n\n  function updateGutters(cm) {\n    renderGutters(cm.display);\n    regChange(cm);\n    alignHorizontally(cm);\n  }\n\n  // The display handles the DOM integration, both for input reading\n  // and content drawing. It holds references to DOM nodes and\n  // display-related state.\n\n  function Display(place, doc, input, options) {\n    var d = this;\n    this.input = input;\n\n    // Covers bottom-right square when both scrollbars are present.\n    d.scrollbarFiller = elt(\"div\", null, \"CodeMirror-scrollbar-filler\");\n    d.scrollbarFiller.setAttribute(\"cm-not-content\", \"true\");\n    // Covers bottom of gutter when coverGutterNextToScrollbar is on\n    // and h scrollbar is present.\n    d.gutterFiller = elt(\"div\", null, \"CodeMirror-gutter-filler\");\n    d.gutterFiller.setAttribute(\"cm-not-content\", \"true\");\n    // Will contain the actual code, positioned to cover the viewport.\n    d.lineDiv = eltP(\"div\", null, \"CodeMirror-code\");\n    // Elements are added to these to represent selection and cursors.\n    d.selectionDiv = elt(\"div\", null, null, \"position: relative; z-index: 1\");\n    d.cursorDiv = elt(\"div\", null, \"CodeMirror-cursors\");\n    // A visibility: hidden element used to find the size of things.\n    d.measure = elt(\"div\", null, \"CodeMirror-measure\");\n    // When lines outside of the viewport are measured, they are drawn in this.\n    d.lineMeasure = elt(\"div\", null, \"CodeMirror-measure\");\n    // Wraps everything that needs to exist inside the vertically-padded coordinate system\n    d.lineSpace = eltP(\"div\", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],\n                      null, \"position: relative; outline: none\");\n    var lines = eltP(\"div\", [d.lineSpace], \"CodeMirror-lines\");\n    // Moved around its parent to cover visible view.\n    d.mover = elt(\"div\", [lines], null, \"position: relative\");\n    // Set to the height of the document, allowing scrolling.\n    d.sizer = elt(\"div\", [d.mover], \"CodeMirror-sizer\");\n    d.sizerWidth = null;\n    // Behavior of elts with overflow: auto and padding is\n    // inconsistent across browsers. This is used to ensure the\n    // scrollable area is big enough.\n    d.heightForcer = elt(\"div\", null, null, \"position: absolute; height: \" + scrollerGap + \"px; width: 1px;\");\n    // Will contain the gutters, if any.\n    d.gutters = elt(\"div\", null, \"CodeMirror-gutters\");\n    d.lineGutter = null;\n    // Actual scrollable element.\n    d.scroller = elt(\"div\", [d.sizer, d.heightForcer, d.gutters], \"CodeMirror-scroll\");\n    d.scroller.setAttribute(\"tabIndex\", \"-1\");\n    // The element in which the editor lives.\n    d.wrapper = elt(\"div\", [d.scrollbarFiller, d.gutterFiller, d.scroller], \"CodeMirror\");\n\n    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)\n    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }\n    if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }\n\n    if (place) {\n      if (place.appendChild) { place.appendChild(d.wrapper); }\n      else { place(d.wrapper); }\n    }\n\n    // Current rendered range (may be bigger than the view window).\n    d.viewFrom = d.viewTo = doc.first;\n    d.reportedViewFrom = d.reportedViewTo = doc.first;\n    // Information about the rendered lines.\n    d.view = [];\n    d.renderedView = null;\n    // Holds info about a single rendered line when it was rendered\n    // for measurement, while not in view.\n    d.externalMeasured = null;\n    // Empty space (in pixels) above the view\n    d.viewOffset = 0;\n    d.lastWrapHeight = d.lastWrapWidth = 0;\n    d.updateLineNumbers = null;\n\n    d.nativeBarWidth = d.barHeight = d.barWidth = 0;\n    d.scrollbarsClipped = false;\n\n    // Used to only resize the line number gutter when necessary (when\n    // the amount of lines crosses a boundary that makes its width change)\n    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;\n    // Set to true when a non-horizontal-scrolling line widget is\n    // added. As an optimization, line widget aligning is skipped when\n    // this is false.\n    d.alignWidgets = false;\n\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\n\n    // Tracks the maximum line length so that the horizontal scrollbar\n    // can be kept static when scrolling.\n    d.maxLine = null;\n    d.maxLineLength = 0;\n    d.maxLineChanged = false;\n\n    // Used for measuring wheel scrolling granularity\n    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;\n\n    // True when shift is held down.\n    d.shift = false;\n\n    // Used to track whether anything happened since the context menu\n    // was opened.\n    d.selForContextMenu = null;\n\n    d.activeTouch = null;\n\n    d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);\n    renderGutters(d);\n\n    input.init(d);\n  }\n\n  // Since the delta values reported on mouse wheel events are\n  // unstandardized between browsers and even browser versions, and\n  // generally horribly unpredictable, this code starts by measuring\n  // the scroll effect that the first few mouse wheel events have,\n  // and, from that, detects the way it can convert deltas to pixel\n  // offsets afterwards.\n  //\n  // The reason we want to know the amount a wheel event will scroll\n  // is that it gives us a chance to update the display before the\n  // actual scrolling happens, reducing flickering.\n\n  var wheelSamples = 0, wheelPixelsPerUnit = null;\n  // Fill in a browser-detected starting value on browsers where we\n  // know one. These don't have to be accurate -- the result of them\n  // being wrong would just be a slight flicker on the first wheel\n  // scroll (if it is large enough).\n  if (ie) { wheelPixelsPerUnit = -.53; }\n  else if (gecko) { wheelPixelsPerUnit = 15; }\n  else if (chrome) { wheelPixelsPerUnit = -.7; }\n  else if (safari) { wheelPixelsPerUnit = -1/3; }\n\n  function wheelEventDelta(e) {\n    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;\n    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }\n    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }\n    else if (dy == null) { dy = e.wheelDelta; }\n    return {x: dx, y: dy}\n  }\n  function wheelEventPixels(e) {\n    var delta = wheelEventDelta(e);\n    delta.x *= wheelPixelsPerUnit;\n    delta.y *= wheelPixelsPerUnit;\n    return delta\n  }\n\n  function onScrollWheel(cm, e) {\n    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;\n\n    var display = cm.display, scroll = display.scroller;\n    // Quit if there's nothing to scroll here\n    var canScrollX = scroll.scrollWidth > scroll.clientWidth;\n    var canScrollY = scroll.scrollHeight > scroll.clientHeight;\n    if (!(dx && canScrollX || dy && canScrollY)) { return }\n\n    // Webkit browsers on OS X abort momentum scrolls when the target\n    // of the scroll event is removed from the scrollable element.\n    // This hack (see related code in patchDisplay) makes sure the\n    // element is kept around.\n    if (dy && mac && webkit) {\n      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {\n        for (var i = 0; i < view.length; i++) {\n          if (view[i].node == cur) {\n            cm.display.currentWheelTarget = cur;\n            break outer\n          }\n        }\n      }\n    }\n\n    // On some browsers, horizontal scrolling will cause redraws to\n    // happen before the gutter has been realigned, causing it to\n    // wriggle around in a most unseemly way. When we have an\n    // estimated pixels/delta value, we just handle horizontal\n    // scrolling entirely here. It'll be slightly off from native, but\n    // better than glitching out.\n    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {\n      if (dy && canScrollY)\n        { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }\n      setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));\n      // Only prevent default scrolling if vertical scrolling is\n      // actually possible. Otherwise, it causes vertical scroll\n      // jitter on OSX trackpads when deltaX is small and deltaY\n      // is large (issue #3579)\n      if (!dy || (dy && canScrollY))\n        { e_preventDefault(e); }\n      display.wheelStartX = null; // Abort measurement, if in progress\n      return\n    }\n\n    // 'Project' the visible viewport to cover the area that is being\n    // scrolled into view (if we know enough to estimate it).\n    if (dy && wheelPixelsPerUnit != null) {\n      var pixels = dy * wheelPixelsPerUnit;\n      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;\n      if (pixels < 0) { top = Math.max(0, top + pixels - 50); }\n      else { bot = Math.min(cm.doc.height, bot + pixels + 50); }\n      updateDisplaySimple(cm, {top: top, bottom: bot});\n    }\n\n    if (wheelSamples < 20) {\n      if (display.wheelStartX == null) {\n        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;\n        display.wheelDX = dx; display.wheelDY = dy;\n        setTimeout(function () {\n          if (display.wheelStartX == null) { return }\n          var movedX = scroll.scrollLeft - display.wheelStartX;\n          var movedY = scroll.scrollTop - display.wheelStartY;\n          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||\n            (movedX && display.wheelDX && movedX / display.wheelDX);\n          display.wheelStartX = display.wheelStartY = null;\n          if (!sample) { return }\n          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);\n          ++wheelSamples;\n        }, 200);\n      } else {\n        display.wheelDX += dx; display.wheelDY += dy;\n      }\n    }\n  }\n\n  // Selection objects are immutable. A new one is created every time\n  // the selection changes. A selection is one or more non-overlapping\n  // (and non-touching) ranges, sorted, and an integer that indicates\n  // which one is the primary selection (the one that's scrolled into\n  // view, that getCursor returns, etc).\n  var Selection = function(ranges, primIndex) {\n    this.ranges = ranges;\n    this.primIndex = primIndex;\n  };\n\n  Selection.prototype.primary = function () { return this.ranges[this.primIndex] };\n\n  Selection.prototype.equals = function (other) {\n    if (other == this) { return true }\n    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }\n    for (var i = 0; i < this.ranges.length; i++) {\n      var here = this.ranges[i], there = other.ranges[i];\n      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }\n    }\n    return true\n  };\n\n  Selection.prototype.deepCopy = function () {\n    var out = [];\n    for (var i = 0; i < this.ranges.length; i++)\n      { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }\n    return new Selection(out, this.primIndex)\n  };\n\n  Selection.prototype.somethingSelected = function () {\n    for (var i = 0; i < this.ranges.length; i++)\n      { if (!this.ranges[i].empty()) { return true } }\n    return false\n  };\n\n  Selection.prototype.contains = function (pos, end) {\n    if (!end) { end = pos; }\n    for (var i = 0; i < this.ranges.length; i++) {\n      var range = this.ranges[i];\n      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)\n        { return i }\n    }\n    return -1\n  };\n\n  var Range = function(anchor, head) {\n    this.anchor = anchor; this.head = head;\n  };\n\n  Range.prototype.from = function () { return minPos(this.anchor, this.head) };\n  Range.prototype.to = function () { return maxPos(this.anchor, this.head) };\n  Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };\n\n  // Take an unsorted, potentially overlapping set of ranges, and\n  // build a selection out of it. 'Consumes' ranges array (modifying\n  // it).\n  function normalizeSelection(cm, ranges, primIndex) {\n    var mayTouch = cm && cm.options.selectionsMayTouch;\n    var prim = ranges[primIndex];\n    ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });\n    primIndex = indexOf(ranges, prim);\n    for (var i = 1; i < ranges.length; i++) {\n      var cur = ranges[i], prev = ranges[i - 1];\n      var diff = cmp(prev.to(), cur.from());\n      if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {\n        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());\n        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;\n        if (i <= primIndex) { --primIndex; }\n        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));\n      }\n    }\n    return new Selection(ranges, primIndex)\n  }\n\n  function simpleSelection(anchor, head) {\n    return new Selection([new Range(anchor, head || anchor)], 0)\n  }\n\n  // Compute the position of the end of a change (its 'to' property\n  // refers to the pre-change end).\n  function changeEnd(change) {\n    if (!change.text) { return change.to }\n    return Pos(change.from.line + change.text.length - 1,\n               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))\n  }\n\n  // Adjust a position to refer to the post-change position of the\n  // same text, or the end of the change if the change covers it.\n  function adjustForChange(pos, change) {\n    if (cmp(pos, change.from) < 0) { return pos }\n    if (cmp(pos, change.to) <= 0) { return changeEnd(change) }\n\n    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;\n    if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }\n    return Pos(line, ch)\n  }\n\n  function computeSelAfterChange(doc, change) {\n    var out = [];\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\n      var range = doc.sel.ranges[i];\n      out.push(new Range(adjustForChange(range.anchor, change),\n                         adjustForChange(range.head, change)));\n    }\n    return normalizeSelection(doc.cm, out, doc.sel.primIndex)\n  }\n\n  function offsetPos(pos, old, nw) {\n    if (pos.line == old.line)\n      { return Pos(nw.line, pos.ch - old.ch + nw.ch) }\n    else\n      { return Pos(nw.line + (pos.line - old.line), pos.ch) }\n  }\n\n  // Used by replaceSelections to allow moving the selection to the\n  // start or around the replaced test. Hint may be \"start\" or \"around\".\n  function computeReplacedSel(doc, changes, hint) {\n    var out = [];\n    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;\n    for (var i = 0; i < changes.length; i++) {\n      var change = changes[i];\n      var from = offsetPos(change.from, oldPrev, newPrev);\n      var to = offsetPos(changeEnd(change), oldPrev, newPrev);\n      oldPrev = change.to;\n      newPrev = to;\n      if (hint == \"around\") {\n        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;\n        out[i] = new Range(inv ? to : from, inv ? from : to);\n      } else {\n        out[i] = new Range(from, from);\n      }\n    }\n    return new Selection(out, doc.sel.primIndex)\n  }\n\n  // Used to get the editor into a consistent state again when options change.\n\n  function loadMode(cm) {\n    cm.doc.mode = getMode(cm.options, cm.doc.modeOption);\n    resetModeState(cm);\n  }\n\n  function resetModeState(cm) {\n    cm.doc.iter(function (line) {\n      if (line.stateAfter) { line.stateAfter = null; }\n      if (line.styles) { line.styles = null; }\n    });\n    cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;\n    startWorker(cm, 100);\n    cm.state.modeGen++;\n    if (cm.curOp) { regChange(cm); }\n  }\n\n  // DOCUMENT DATA STRUCTURE\n\n  // By default, updates that start and end at the beginning of a line\n  // are treated specially, in order to make the association of line\n  // widgets and marker elements with the text behave more intuitive.\n  function isWholeLineUpdate(doc, change) {\n    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == \"\" &&\n      (!doc.cm || doc.cm.options.wholeLineUpdateBefore)\n  }\n\n  // Perform a change on the document data structure.\n  function updateDoc(doc, change, markedSpans, estimateHeight) {\n    function spansFor(n) {return markedSpans ? markedSpans[n] : null}\n    function update(line, text, spans) {\n      updateLine(line, text, spans, estimateHeight);\n      signalLater(line, \"change\", line, change);\n    }\n    function linesFor(start, end) {\n      var result = [];\n      for (var i = start; i < end; ++i)\n        { result.push(new Line(text[i], spansFor(i), estimateHeight)); }\n      return result\n    }\n\n    var from = change.from, to = change.to, text = change.text;\n    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);\n    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;\n\n    // Adjust the line structure\n    if (change.full) {\n      doc.insert(0, linesFor(0, text.length));\n      doc.remove(text.length, doc.size - text.length);\n    } else if (isWholeLineUpdate(doc, change)) {\n      // This is a whole-line replace. Treated specially to make\n      // sure line objects move the way they are supposed to.\n      var added = linesFor(0, text.length - 1);\n      update(lastLine, lastLine.text, lastSpans);\n      if (nlines) { doc.remove(from.line, nlines); }\n      if (added.length) { doc.insert(from.line, added); }\n    } else if (firstLine == lastLine) {\n      if (text.length == 1) {\n        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);\n      } else {\n        var added$1 = linesFor(1, text.length - 1);\n        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));\n        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\n        doc.insert(from.line + 1, added$1);\n      }\n    } else if (text.length == 1) {\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));\n      doc.remove(from.line + 1, nlines);\n    } else {\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\n      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);\n      var added$2 = linesFor(1, text.length - 1);\n      if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }\n      doc.insert(from.line + 1, added$2);\n    }\n\n    signalLater(doc, \"change\", doc, change);\n  }\n\n  // Call f for all linked documents.\n  function linkedDocs(doc, f, sharedHistOnly) {\n    function propagate(doc, skip, sharedHist) {\n      if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {\n        var rel = doc.linked[i];\n        if (rel.doc == skip) { continue }\n        var shared = sharedHist && rel.sharedHist;\n        if (sharedHistOnly && !shared) { continue }\n        f(rel.doc, shared);\n        propagate(rel.doc, doc, shared);\n      } }\n    }\n    propagate(doc, null, true);\n  }\n\n  // Attach a document to an editor.\n  function attachDoc(cm, doc) {\n    if (doc.cm) { throw new Error(\"This document is already in use.\") }\n    cm.doc = doc;\n    doc.cm = cm;\n    estimateLineHeights(cm);\n    loadMode(cm);\n    setDirectionClass(cm);\n    if (!cm.options.lineWrapping) { findMaxLine(cm); }\n    cm.options.mode = doc.modeOption;\n    regChange(cm);\n  }\n\n  function setDirectionClass(cm) {\n  (cm.doc.direction == \"rtl\" ? addClass : rmClass)(cm.display.lineDiv, \"CodeMirror-rtl\");\n  }\n\n  function directionChanged(cm) {\n    runInOp(cm, function () {\n      setDirectionClass(cm);\n      regChange(cm);\n    });\n  }\n\n  function History(startGen) {\n    // Arrays of change events and selections. Doing something adds an\n    // event to done and clears undo. Undoing moves events from done\n    // to undone, redoing moves them in the other direction.\n    this.done = []; this.undone = [];\n    this.undoDepth = Infinity;\n    // Used to track when changes can be merged into a single undo\n    // event\n    this.lastModTime = this.lastSelTime = 0;\n    this.lastOp = this.lastSelOp = null;\n    this.lastOrigin = this.lastSelOrigin = null;\n    // Used by the isClean() method\n    this.generation = this.maxGeneration = startGen || 1;\n  }\n\n  // Create a history change event from an updateDoc-style change\n  // object.\n  function historyChangeFromChange(doc, change) {\n    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};\n    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);\n    linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);\n    return histChange\n  }\n\n  // Pop all selection events off the end of a history array. Stop at\n  // a change event.\n  function clearSelectionEvents(array) {\n    while (array.length) {\n      var last = lst(array);\n      if (last.ranges) { array.pop(); }\n      else { break }\n    }\n  }\n\n  // Find the top change event in the history. Pop off selection\n  // events that are in the way.\n  function lastChangeEvent(hist, force) {\n    if (force) {\n      clearSelectionEvents(hist.done);\n      return lst(hist.done)\n    } else if (hist.done.length && !lst(hist.done).ranges) {\n      return lst(hist.done)\n    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {\n      hist.done.pop();\n      return lst(hist.done)\n    }\n  }\n\n  // Register a change in the history. Merges changes that are within\n  // a single operation, or are close together with an origin that\n  // allows merging (starting with \"+\") into a single event.\n  function addChangeToHistory(doc, change, selAfter, opId) {\n    var hist = doc.history;\n    hist.undone.length = 0;\n    var time = +new Date, cur;\n    var last;\n\n    if ((hist.lastOp == opId ||\n         hist.lastOrigin == change.origin && change.origin &&\n         ((change.origin.charAt(0) == \"+\" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||\n          change.origin.charAt(0) == \"*\")) &&\n        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {\n      // Merge this change into the last event\n      last = lst(cur.changes);\n      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {\n        // Optimized case for simple insertion -- don't want to add\n        // new changesets for every character typed\n        last.to = changeEnd(change);\n      } else {\n        // Add new sub-event\n        cur.changes.push(historyChangeFromChange(doc, change));\n      }\n    } else {\n      // Can not be merged, start a new event.\n      var before = lst(hist.done);\n      if (!before || !before.ranges)\n        { pushSelectionToHistory(doc.sel, hist.done); }\n      cur = {changes: [historyChangeFromChange(doc, change)],\n             generation: hist.generation};\n      hist.done.push(cur);\n      while (hist.done.length > hist.undoDepth) {\n        hist.done.shift();\n        if (!hist.done[0].ranges) { hist.done.shift(); }\n      }\n    }\n    hist.done.push(selAfter);\n    hist.generation = ++hist.maxGeneration;\n    hist.lastModTime = hist.lastSelTime = time;\n    hist.lastOp = hist.lastSelOp = opId;\n    hist.lastOrigin = hist.lastSelOrigin = change.origin;\n\n    if (!last) { signal(doc, \"historyAdded\"); }\n  }\n\n  function selectionEventCanBeMerged(doc, origin, prev, sel) {\n    var ch = origin.charAt(0);\n    return ch == \"*\" ||\n      ch == \"+\" &&\n      prev.ranges.length == sel.ranges.length &&\n      prev.somethingSelected() == sel.somethingSelected() &&\n      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)\n  }\n\n  // Called whenever the selection changes, sets the new selection as\n  // the pending selection in the history, and pushes the old pending\n  // selection into the 'done' array when it was significantly\n  // different (in number of selected ranges, emptiness, or time).\n  function addSelectionToHistory(doc, sel, opId, options) {\n    var hist = doc.history, origin = options && options.origin;\n\n    // A new event is started when the previous origin does not match\n    // the current, or the origins don't allow matching. Origins\n    // starting with * are always merged, those starting with + are\n    // merged when similar and close together in time.\n    if (opId == hist.lastSelOp ||\n        (origin && hist.lastSelOrigin == origin &&\n         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||\n          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))\n      { hist.done[hist.done.length - 1] = sel; }\n    else\n      { pushSelectionToHistory(sel, hist.done); }\n\n    hist.lastSelTime = +new Date;\n    hist.lastSelOrigin = origin;\n    hist.lastSelOp = opId;\n    if (options && options.clearRedo !== false)\n      { clearSelectionEvents(hist.undone); }\n  }\n\n  function pushSelectionToHistory(sel, dest) {\n    var top = lst(dest);\n    if (!(top && top.ranges && top.equals(sel)))\n      { dest.push(sel); }\n  }\n\n  // Used to store marked span information in the history.\n  function attachLocalSpans(doc, change, from, to) {\n    var existing = change[\"spans_\" + doc.id], n = 0;\n    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {\n      if (line.markedSpans)\n        { (existing || (existing = change[\"spans_\" + doc.id] = {}))[n] = line.markedSpans; }\n      ++n;\n    });\n  }\n\n  // When un/re-doing restores text containing marked spans, those\n  // that have been explicitly cleared should not be restored.\n  function removeClearedSpans(spans) {\n    if (!spans) { return null }\n    var out;\n    for (var i = 0; i < spans.length; ++i) {\n      if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }\n      else if (out) { out.push(spans[i]); }\n    }\n    return !out ? spans : out.length ? out : null\n  }\n\n  // Retrieve and filter the old marked spans stored in a change event.\n  function getOldSpans(doc, change) {\n    var found = change[\"spans_\" + doc.id];\n    if (!found) { return null }\n    var nw = [];\n    for (var i = 0; i < change.text.length; ++i)\n      { nw.push(removeClearedSpans(found[i])); }\n    return nw\n  }\n\n  // Used for un/re-doing changes from the history. Combines the\n  // result of computing the existing spans with the set of spans that\n  // existed in the history (so that deleting around a span and then\n  // undoing brings back the span).\n  function mergeOldSpans(doc, change) {\n    var old = getOldSpans(doc, change);\n    var stretched = stretchSpansOverChange(doc, change);\n    if (!old) { return stretched }\n    if (!stretched) { return old }\n\n    for (var i = 0; i < old.length; ++i) {\n      var oldCur = old[i], stretchCur = stretched[i];\n      if (oldCur && stretchCur) {\n        spans: for (var j = 0; j < stretchCur.length; ++j) {\n          var span = stretchCur[j];\n          for (var k = 0; k < oldCur.length; ++k)\n            { if (oldCur[k].marker == span.marker) { continue spans } }\n          oldCur.push(span);\n        }\n      } else if (stretchCur) {\n        old[i] = stretchCur;\n      }\n    }\n    return old\n  }\n\n  // Used both to provide a JSON-safe object in .getHistory, and, when\n  // detaching a document, to split the history in two\n  function copyHistoryArray(events, newGroup, instantiateSel) {\n    var copy = [];\n    for (var i = 0; i < events.length; ++i) {\n      var event = events[i];\n      if (event.ranges) {\n        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);\n        continue\n      }\n      var changes = event.changes, newChanges = [];\n      copy.push({changes: newChanges});\n      for (var j = 0; j < changes.length; ++j) {\n        var change = changes[j], m = (void 0);\n        newChanges.push({from: change.from, to: change.to, text: change.text});\n        if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\\d+)$/)) {\n          if (indexOf(newGroup, Number(m[1])) > -1) {\n            lst(newChanges)[prop] = change[prop];\n            delete change[prop];\n          }\n        } } }\n      }\n    }\n    return copy\n  }\n\n  // The 'scroll' parameter given to many of these indicated whether\n  // the new cursor position should be scrolled into view after\n  // modifying the selection.\n\n  // If shift is held or the extend flag is set, extends a range to\n  // include a given position (and optionally a second position).\n  // Otherwise, simply returns the range between the given positions.\n  // Used for cursor motion and such.\n  function extendRange(range, head, other, extend) {\n    if (extend) {\n      var anchor = range.anchor;\n      if (other) {\n        var posBefore = cmp(head, anchor) < 0;\n        if (posBefore != (cmp(other, anchor) < 0)) {\n          anchor = head;\n          head = other;\n        } else if (posBefore != (cmp(head, other) < 0)) {\n          head = other;\n        }\n      }\n      return new Range(anchor, head)\n    } else {\n      return new Range(other || head, head)\n    }\n  }\n\n  // Extend the primary selection range, discard the rest.\n  function extendSelection(doc, head, other, options, extend) {\n    if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }\n    setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);\n  }\n\n  // Extend all selections (pos is an array of selections with length\n  // equal the number of selections)\n  function extendSelections(doc, heads, options) {\n    var out = [];\n    var extend = doc.cm && (doc.cm.display.shift || doc.extend);\n    for (var i = 0; i < doc.sel.ranges.length; i++)\n      { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }\n    var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);\n    setSelection(doc, newSel, options);\n  }\n\n  // Updates a single range in the selection.\n  function replaceOneSelection(doc, i, range, options) {\n    var ranges = doc.sel.ranges.slice(0);\n    ranges[i] = range;\n    setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);\n  }\n\n  // Reset the selection to a single range.\n  function setSimpleSelection(doc, anchor, head, options) {\n    setSelection(doc, simpleSelection(anchor, head), options);\n  }\n\n  // Give beforeSelectionChange handlers a change to influence a\n  // selection update.\n  function filterSelectionChange(doc, sel, options) {\n    var obj = {\n      ranges: sel.ranges,\n      update: function(ranges) {\n        this.ranges = [];\n        for (var i = 0; i < ranges.length; i++)\n          { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),\n                                     clipPos(doc, ranges[i].head)); }\n      },\n      origin: options && options.origin\n    };\n    signal(doc, \"beforeSelectionChange\", doc, obj);\n    if (doc.cm) { signal(doc.cm, \"beforeSelectionChange\", doc.cm, obj); }\n    if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }\n    else { return sel }\n  }\n\n  function setSelectionReplaceHistory(doc, sel, options) {\n    var done = doc.history.done, last = lst(done);\n    if (last && last.ranges) {\n      done[done.length - 1] = sel;\n      setSelectionNoUndo(doc, sel, options);\n    } else {\n      setSelection(doc, sel, options);\n    }\n  }\n\n  // Set a new selection.\n  function setSelection(doc, sel, options) {\n    setSelectionNoUndo(doc, sel, options);\n    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);\n  }\n\n  function setSelectionNoUndo(doc, sel, options) {\n    if (hasHandler(doc, \"beforeSelectionChange\") || doc.cm && hasHandler(doc.cm, \"beforeSelectionChange\"))\n      { sel = filterSelectionChange(doc, sel, options); }\n\n    var bias = options && options.bias ||\n      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);\n    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));\n\n    if (!(options && options.scroll === false) && doc.cm)\n      { ensureCursorVisible(doc.cm); }\n  }\n\n  function setSelectionInner(doc, sel) {\n    if (sel.equals(doc.sel)) { return }\n\n    doc.sel = sel;\n\n    if (doc.cm) {\n      doc.cm.curOp.updateInput = 1;\n      doc.cm.curOp.selectionChanged = true;\n      signalCursorActivity(doc.cm);\n    }\n    signalLater(doc, \"cursorActivity\", doc);\n  }\n\n  // Verify that the selection does not partially select any atomic\n  // marked ranges.\n  function reCheckSelection(doc) {\n    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));\n  }\n\n  // Return a selection that does not partially select any atomic\n  // ranges.\n  function skipAtomicInSelection(doc, sel, bias, mayClear) {\n    var out;\n    for (var i = 0; i < sel.ranges.length; i++) {\n      var range = sel.ranges[i];\n      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];\n      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);\n      var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);\n      if (out || newAnchor != range.anchor || newHead != range.head) {\n        if (!out) { out = sel.ranges.slice(0, i); }\n        out[i] = new Range(newAnchor, newHead);\n      }\n    }\n    return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel\n  }\n\n  function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {\n    var line = getLine(doc, pos.line);\n    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n      var sp = line.markedSpans[i], m = sp.marker;\n\n      // Determine if we should prevent the cursor being placed to the left/right of an atomic marker\n      // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it\n      // is with selectLeft/Right\n      var preventCursorLeft = (\"selectLeft\" in m) ? !m.selectLeft : m.inclusiveLeft;\n      var preventCursorRight = (\"selectRight\" in m) ? !m.selectRight : m.inclusiveRight;\n\n      if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&\n          (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {\n        if (mayClear) {\n          signal(m, \"beforeCursorEnter\");\n          if (m.explicitlyCleared) {\n            if (!line.markedSpans) { break }\n            else {--i; continue}\n          }\n        }\n        if (!m.atomic) { continue }\n\n        if (oldPos) {\n          var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);\n          if (dir < 0 ? preventCursorRight : preventCursorLeft)\n            { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }\n          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))\n            { return skipAtomicInner(doc, near, pos, dir, mayClear) }\n        }\n\n        var far = m.find(dir < 0 ? -1 : 1);\n        if (dir < 0 ? preventCursorLeft : preventCursorRight)\n          { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }\n        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null\n      }\n    } }\n    return pos\n  }\n\n  // Ensure a given position is not inside an atomic range.\n  function skipAtomic(doc, pos, oldPos, bias, mayClear) {\n    var dir = bias || 1;\n    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||\n        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||\n        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||\n        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));\n    if (!found) {\n      doc.cantEdit = true;\n      return Pos(doc.first, 0)\n    }\n    return found\n  }\n\n  function movePos(doc, pos, dir, line) {\n    if (dir < 0 && pos.ch == 0) {\n      if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }\n      else { return null }\n    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {\n      if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }\n      else { return null }\n    } else {\n      return new Pos(pos.line, pos.ch + dir)\n    }\n  }\n\n  function selectAll(cm) {\n    cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);\n  }\n\n  // UPDATING\n\n  // Allow \"beforeChange\" event handlers to influence a change\n  function filterChange(doc, change, update) {\n    var obj = {\n      canceled: false,\n      from: change.from,\n      to: change.to,\n      text: change.text,\n      origin: change.origin,\n      cancel: function () { return obj.canceled = true; }\n    };\n    if (update) { obj.update = function (from, to, text, origin) {\n      if (from) { obj.from = clipPos(doc, from); }\n      if (to) { obj.to = clipPos(doc, to); }\n      if (text) { obj.text = text; }\n      if (origin !== undefined) { obj.origin = origin; }\n    }; }\n    signal(doc, \"beforeChange\", doc, obj);\n    if (doc.cm) { signal(doc.cm, \"beforeChange\", doc.cm, obj); }\n\n    if (obj.canceled) {\n      if (doc.cm) { doc.cm.curOp.updateInput = 2; }\n      return null\n    }\n    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}\n  }\n\n  // Apply a change to a document, and add it to the document's\n  // history, and propagating it to all linked documents.\n  function makeChange(doc, change, ignoreReadOnly) {\n    if (doc.cm) {\n      if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }\n      if (doc.cm.state.suppressEdits) { return }\n    }\n\n    if (hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\")) {\n      change = filterChange(doc, change, true);\n      if (!change) { return }\n    }\n\n    // Possibly split or suppress the update based on the presence\n    // of read-only spans in its range.\n    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);\n    if (split) {\n      for (var i = split.length - 1; i >= 0; --i)\n        { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [\"\"] : change.text, origin: change.origin}); }\n    } else {\n      makeChangeInner(doc, change);\n    }\n  }\n\n  function makeChangeInner(doc, change) {\n    if (change.text.length == 1 && change.text[0] == \"\" && cmp(change.from, change.to) == 0) { return }\n    var selAfter = computeSelAfterChange(doc, change);\n    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);\n\n    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));\n    var rebased = [];\n\n    linkedDocs(doc, function (doc, sharedHist) {\n      if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n        rebaseHist(doc.history, change);\n        rebased.push(doc.history);\n      }\n      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));\n    });\n  }\n\n  // Revert a change stored in a document's history.\n  function makeChangeFromHistory(doc, type, allowSelectionOnly) {\n    var suppress = doc.cm && doc.cm.state.suppressEdits;\n    if (suppress && !allowSelectionOnly) { return }\n\n    var hist = doc.history, event, selAfter = doc.sel;\n    var source = type == \"undo\" ? hist.done : hist.undone, dest = type == \"undo\" ? hist.undone : hist.done;\n\n    // Verify that there is a useable event (so that ctrl-z won't\n    // needlessly clear selection events)\n    var i = 0;\n    for (; i < source.length; i++) {\n      event = source[i];\n      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)\n        { break }\n    }\n    if (i == source.length) { return }\n    hist.lastOrigin = hist.lastSelOrigin = null;\n\n    for (;;) {\n      event = source.pop();\n      if (event.ranges) {\n        pushSelectionToHistory(event, dest);\n        if (allowSelectionOnly && !event.equals(doc.sel)) {\n          setSelection(doc, event, {clearRedo: false});\n          return\n        }\n        selAfter = event;\n      } else if (suppress) {\n        source.push(event);\n        return\n      } else { break }\n    }\n\n    // Build up a reverse change object to add to the opposite history\n    // stack (redo when undoing, and vice versa).\n    var antiChanges = [];\n    pushSelectionToHistory(selAfter, dest);\n    dest.push({changes: antiChanges, generation: hist.generation});\n    hist.generation = event.generation || ++hist.maxGeneration;\n\n    var filter = hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\");\n\n    var loop = function ( i ) {\n      var change = event.changes[i];\n      change.origin = type;\n      if (filter && !filterChange(doc, change, false)) {\n        source.length = 0;\n        return {}\n      }\n\n      antiChanges.push(historyChangeFromChange(doc, change));\n\n      var after = i ? computeSelAfterChange(doc, change) : lst(source);\n      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));\n      if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }\n      var rebased = [];\n\n      // Propagate to the linked documents\n      linkedDocs(doc, function (doc, sharedHist) {\n        if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n          rebaseHist(doc.history, change);\n          rebased.push(doc.history);\n        }\n        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));\n      });\n    };\n\n    for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {\n      var returned = loop( i$1 );\n\n      if ( returned ) return returned.v;\n    }\n  }\n\n  // Sub-views need their line numbers shifted when text is added\n  // above or below them in the parent document.\n  function shiftDoc(doc, distance) {\n    if (distance == 0) { return }\n    doc.first += distance;\n    doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(\n      Pos(range.anchor.line + distance, range.anchor.ch),\n      Pos(range.head.line + distance, range.head.ch)\n    ); }), doc.sel.primIndex);\n    if (doc.cm) {\n      regChange(doc.cm, doc.first, doc.first - distance, distance);\n      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)\n        { regLineChange(doc.cm, l, \"gutter\"); }\n    }\n  }\n\n  // More lower-level change function, handling only a single document\n  // (not linked ones).\n  function makeChangeSingleDoc(doc, change, selAfter, spans) {\n    if (doc.cm && !doc.cm.curOp)\n      { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }\n\n    if (change.to.line < doc.first) {\n      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));\n      return\n    }\n    if (change.from.line > doc.lastLine()) { return }\n\n    // Clip the change to the size of this doc\n    if (change.from.line < doc.first) {\n      var shift = change.text.length - 1 - (doc.first - change.from.line);\n      shiftDoc(doc, shift);\n      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),\n                text: [lst(change.text)], origin: change.origin};\n    }\n    var last = doc.lastLine();\n    if (change.to.line > last) {\n      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),\n                text: [change.text[0]], origin: change.origin};\n    }\n\n    change.removed = getBetween(doc, change.from, change.to);\n\n    if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }\n    if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }\n    else { updateDoc(doc, change, spans); }\n    setSelectionNoUndo(doc, selAfter, sel_dontScroll);\n\n    if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))\n      { doc.cantEdit = false; }\n  }\n\n  // Handle the interaction of a change to a document with the editor\n  // that this document is part of.\n  function makeChangeSingleDocInEditor(cm, change, spans) {\n    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;\n\n    var recomputeMaxLength = false, checkWidthStart = from.line;\n    if (!cm.options.lineWrapping) {\n      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));\n      doc.iter(checkWidthStart, to.line + 1, function (line) {\n        if (line == display.maxLine) {\n          recomputeMaxLength = true;\n          return true\n        }\n      });\n    }\n\n    if (doc.sel.contains(change.from, change.to) > -1)\n      { signalCursorActivity(cm); }\n\n    updateDoc(doc, change, spans, estimateHeight(cm));\n\n    if (!cm.options.lineWrapping) {\n      doc.iter(checkWidthStart, from.line + change.text.length, function (line) {\n        var len = lineLength(line);\n        if (len > display.maxLineLength) {\n          display.maxLine = line;\n          display.maxLineLength = len;\n          display.maxLineChanged = true;\n          recomputeMaxLength = false;\n        }\n      });\n      if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }\n    }\n\n    retreatFrontier(doc, from.line);\n    startWorker(cm, 400);\n\n    var lendiff = change.text.length - (to.line - from.line) - 1;\n    // Remember that these lines changed, for updating the display\n    if (change.full)\n      { regChange(cm); }\n    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))\n      { regLineChange(cm, from.line, \"text\"); }\n    else\n      { regChange(cm, from.line, to.line + 1, lendiff); }\n\n    var changesHandler = hasHandler(cm, \"changes\"), changeHandler = hasHandler(cm, \"change\");\n    if (changeHandler || changesHandler) {\n      var obj = {\n        from: from, to: to,\n        text: change.text,\n        removed: change.removed,\n        origin: change.origin\n      };\n      if (changeHandler) { signalLater(cm, \"change\", cm, obj); }\n      if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }\n    }\n    cm.display.selForContextMenu = null;\n  }\n\n  function replaceRange(doc, code, from, to, origin) {\n    var assign;\n\n    if (!to) { to = from; }\n    if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }\n    if (typeof code == \"string\") { code = doc.splitLines(code); }\n    makeChange(doc, {from: from, to: to, text: code, origin: origin});\n  }\n\n  // Rebasing/resetting history to deal with externally-sourced changes\n\n  function rebaseHistSelSingle(pos, from, to, diff) {\n    if (to < pos.line) {\n      pos.line += diff;\n    } else if (from < pos.line) {\n      pos.line = from;\n      pos.ch = 0;\n    }\n  }\n\n  // Tries to rebase an array of history events given a change in the\n  // document. If the change touches the same lines as the event, the\n  // event, and everything 'behind' it, is discarded. If the change is\n  // before the event, the event's positions are updated. Uses a\n  // copy-on-write scheme for the positions, to avoid having to\n  // reallocate them all on every rebase, but also avoid problems with\n  // shared position objects being unsafely updated.\n  function rebaseHistArray(array, from, to, diff) {\n    for (var i = 0; i < array.length; ++i) {\n      var sub = array[i], ok = true;\n      if (sub.ranges) {\n        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }\n        for (var j = 0; j < sub.ranges.length; j++) {\n          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);\n          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);\n        }\n        continue\n      }\n      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {\n        var cur = sub.changes[j$1];\n        if (to < cur.from.line) {\n          cur.from = Pos(cur.from.line + diff, cur.from.ch);\n          cur.to = Pos(cur.to.line + diff, cur.to.ch);\n        } else if (from <= cur.to.line) {\n          ok = false;\n          break\n        }\n      }\n      if (!ok) {\n        array.splice(0, i + 1);\n        i = 0;\n      }\n    }\n  }\n\n  function rebaseHist(hist, change) {\n    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;\n    rebaseHistArray(hist.done, from, to, diff);\n    rebaseHistArray(hist.undone, from, to, diff);\n  }\n\n  // Utility for applying a change to a line by handle or number,\n  // returning the number and optionally registering the line as\n  // changed.\n  function changeLine(doc, handle, changeType, op) {\n    var no = handle, line = handle;\n    if (typeof handle == \"number\") { line = getLine(doc, clipLine(doc, handle)); }\n    else { no = lineNo(handle); }\n    if (no == null) { return null }\n    if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }\n    return line\n  }\n\n  // The document is represented as a BTree consisting of leaves, with\n  // chunk of lines in them, and branches, with up to ten leaves or\n  // other branch nodes below them. The top node is always a branch\n  // node, and is the document object itself (meaning it has\n  // additional methods and properties).\n  //\n  // All nodes have parent links. The tree is used both to go from\n  // line numbers to line objects, and to go from objects to numbers.\n  // It also indexes by height, and is used to convert between height\n  // and line object, and to find the total height of the document.\n  //\n  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html\n\n  function LeafChunk(lines) {\n    this.lines = lines;\n    this.parent = null;\n    var height = 0;\n    for (var i = 0; i < lines.length; ++i) {\n      lines[i].parent = this;\n      height += lines[i].height;\n    }\n    this.height = height;\n  }\n\n  LeafChunk.prototype = {\n    chunkSize: function() { return this.lines.length },\n\n    // Remove the n lines at offset 'at'.\n    removeInner: function(at, n) {\n      for (var i = at, e = at + n; i < e; ++i) {\n        var line = this.lines[i];\n        this.height -= line.height;\n        cleanUpLine(line);\n        signalLater(line, \"delete\");\n      }\n      this.lines.splice(at, n);\n    },\n\n    // Helper used to collapse a small branch into a single leaf.\n    collapse: function(lines) {\n      lines.push.apply(lines, this.lines);\n    },\n\n    // Insert the given array of lines at offset 'at', count them as\n    // having the given height.\n    insertInner: function(at, lines, height) {\n      this.height += height;\n      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));\n      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }\n    },\n\n    // Used to iterate over a part of the tree.\n    iterN: function(at, n, op) {\n      for (var e = at + n; at < e; ++at)\n        { if (op(this.lines[at])) { return true } }\n    }\n  };\n\n  function BranchChunk(children) {\n    this.children = children;\n    var size = 0, height = 0;\n    for (var i = 0; i < children.length; ++i) {\n      var ch = children[i];\n      size += ch.chunkSize(); height += ch.height;\n      ch.parent = this;\n    }\n    this.size = size;\n    this.height = height;\n    this.parent = null;\n  }\n\n  BranchChunk.prototype = {\n    chunkSize: function() { return this.size },\n\n    removeInner: function(at, n) {\n      this.size -= n;\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this.children[i], sz = child.chunkSize();\n        if (at < sz) {\n          var rm = Math.min(n, sz - at), oldHeight = child.height;\n          child.removeInner(at, rm);\n          this.height -= oldHeight - child.height;\n          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }\n          if ((n -= rm) == 0) { break }\n          at = 0;\n        } else { at -= sz; }\n      }\n      // If the result is smaller than 25 lines, ensure that it is a\n      // single leaf node.\n      if (this.size - n < 25 &&\n          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {\n        var lines = [];\n        this.collapse(lines);\n        this.children = [new LeafChunk(lines)];\n        this.children[0].parent = this;\n      }\n    },\n\n    collapse: function(lines) {\n      for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }\n    },\n\n    insertInner: function(at, lines, height) {\n      this.size += lines.length;\n      this.height += height;\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this.children[i], sz = child.chunkSize();\n        if (at <= sz) {\n          child.insertInner(at, lines, height);\n          if (child.lines && child.lines.length > 50) {\n            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.\n            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.\n            var remaining = child.lines.length % 25 + 25;\n            for (var pos = remaining; pos < child.lines.length;) {\n              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));\n              child.height -= leaf.height;\n              this.children.splice(++i, 0, leaf);\n              leaf.parent = this;\n            }\n            child.lines = child.lines.slice(0, remaining);\n            this.maybeSpill();\n          }\n          break\n        }\n        at -= sz;\n      }\n    },\n\n    // When a node has grown, check whether it should be split.\n    maybeSpill: function() {\n      if (this.children.length <= 10) { return }\n      var me = this;\n      do {\n        var spilled = me.children.splice(me.children.length - 5, 5);\n        var sibling = new BranchChunk(spilled);\n        if (!me.parent) { // Become the parent node\n          var copy = new BranchChunk(me.children);\n          copy.parent = me;\n          me.children = [copy, sibling];\n          me = copy;\n       } else {\n          me.size -= sibling.size;\n          me.height -= sibling.height;\n          var myIndex = indexOf(me.parent.children, me);\n          me.parent.children.splice(myIndex + 1, 0, sibling);\n        }\n        sibling.parent = me.parent;\n      } while (me.children.length > 10)\n      me.parent.maybeSpill();\n    },\n\n    iterN: function(at, n, op) {\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this.children[i], sz = child.chunkSize();\n        if (at < sz) {\n          var used = Math.min(n, sz - at);\n          if (child.iterN(at, used, op)) { return true }\n          if ((n -= used) == 0) { break }\n          at = 0;\n        } else { at -= sz; }\n      }\n    }\n  };\n\n  // Line widgets are block elements displayed above or below a line.\n\n  var LineWidget = function(doc, node, options) {\n    if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))\n      { this[opt] = options[opt]; } } }\n    this.doc = doc;\n    this.node = node;\n  };\n\n  LineWidget.prototype.clear = function () {\n    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);\n    if (no == null || !ws) { return }\n    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }\n    if (!ws.length) { line.widgets = null; }\n    var height = widgetHeight(this);\n    updateLineHeight(line, Math.max(0, line.height - height));\n    if (cm) {\n      runInOp(cm, function () {\n        adjustScrollWhenAboveVisible(cm, line, -height);\n        regLineChange(cm, no, \"widget\");\n      });\n      signalLater(cm, \"lineWidgetCleared\", cm, this, no);\n    }\n  };\n\n  LineWidget.prototype.changed = function () {\n      var this$1 = this;\n\n    var oldH = this.height, cm = this.doc.cm, line = this.line;\n    this.height = null;\n    var diff = widgetHeight(this) - oldH;\n    if (!diff) { return }\n    if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }\n    if (cm) {\n      runInOp(cm, function () {\n        cm.curOp.forceUpdate = true;\n        adjustScrollWhenAboveVisible(cm, line, diff);\n        signalLater(cm, \"lineWidgetChanged\", cm, this$1, lineNo(line));\n      });\n    }\n  };\n  eventMixin(LineWidget);\n\n  function adjustScrollWhenAboveVisible(cm, line, diff) {\n    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))\n      { addToScrollTop(cm, diff); }\n  }\n\n  function addLineWidget(doc, handle, node, options) {\n    var widget = new LineWidget(doc, node, options);\n    var cm = doc.cm;\n    if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }\n    changeLine(doc, handle, \"widget\", function (line) {\n      var widgets = line.widgets || (line.widgets = []);\n      if (widget.insertAt == null) { widgets.push(widget); }\n      else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }\n      widget.line = line;\n      if (cm && !lineIsHidden(doc, line)) {\n        var aboveVisible = heightAtLine(line) < doc.scrollTop;\n        updateLineHeight(line, line.height + widgetHeight(widget));\n        if (aboveVisible) { addToScrollTop(cm, widget.height); }\n        cm.curOp.forceUpdate = true;\n      }\n      return true\n    });\n    if (cm) { signalLater(cm, \"lineWidgetAdded\", cm, widget, typeof handle == \"number\" ? handle : lineNo(handle)); }\n    return widget\n  }\n\n  // TEXTMARKERS\n\n  // Created with markText and setBookmark methods. A TextMarker is a\n  // handle that can be used to clear or find a marked position in the\n  // document. Line objects hold arrays (markedSpans) containing\n  // {from, to, marker} object pointing to such marker objects, and\n  // indicating that such a marker is present on that line. Multiple\n  // lines may point to the same marker when it spans across lines.\n  // The spans will have null for their from/to properties when the\n  // marker continues beyond the start/end of the line. Markers have\n  // links back to the lines they currently touch.\n\n  // Collapsed markers have unique ids, in order to be able to order\n  // them, which is needed for uniquely determining an outer marker\n  // when they overlap (they may nest, but not partially overlap).\n  var nextMarkerId = 0;\n\n  var TextMarker = function(doc, type) {\n    this.lines = [];\n    this.type = type;\n    this.doc = doc;\n    this.id = ++nextMarkerId;\n  };\n\n  // Clear the marker.\n  TextMarker.prototype.clear = function () {\n    if (this.explicitlyCleared) { return }\n    var cm = this.doc.cm, withOp = cm && !cm.curOp;\n    if (withOp) { startOperation(cm); }\n    if (hasHandler(this, \"clear\")) {\n      var found = this.find();\n      if (found) { signalLater(this, \"clear\", found.from, found.to); }\n    }\n    var min = null, max = null;\n    for (var i = 0; i < this.lines.length; ++i) {\n      var line = this.lines[i];\n      var span = getMarkedSpanFor(line.markedSpans, this);\n      if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), \"text\"); }\n      else if (cm) {\n        if (span.to != null) { max = lineNo(line); }\n        if (span.from != null) { min = lineNo(line); }\n      }\n      line.markedSpans = removeMarkedSpan(line.markedSpans, span);\n      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)\n        { updateLineHeight(line, textHeight(cm.display)); }\n    }\n    if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {\n      var visual = visualLine(this.lines[i$1]), len = lineLength(visual);\n      if (len > cm.display.maxLineLength) {\n        cm.display.maxLine = visual;\n        cm.display.maxLineLength = len;\n        cm.display.maxLineChanged = true;\n      }\n    } }\n\n    if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }\n    this.lines.length = 0;\n    this.explicitlyCleared = true;\n    if (this.atomic && this.doc.cantEdit) {\n      this.doc.cantEdit = false;\n      if (cm) { reCheckSelection(cm.doc); }\n    }\n    if (cm) { signalLater(cm, \"markerCleared\", cm, this, min, max); }\n    if (withOp) { endOperation(cm); }\n    if (this.parent) { this.parent.clear(); }\n  };\n\n  // Find the position of the marker in the document. Returns a {from,\n  // to} object by default. Side can be passed to get a specific side\n  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the\n  // Pos objects returned contain a line object, rather than a line\n  // number (used to prevent looking up the same line twice).\n  TextMarker.prototype.find = function (side, lineObj) {\n    if (side == null && this.type == \"bookmark\") { side = 1; }\n    var from, to;\n    for (var i = 0; i < this.lines.length; ++i) {\n      var line = this.lines[i];\n      var span = getMarkedSpanFor(line.markedSpans, this);\n      if (span.from != null) {\n        from = Pos(lineObj ? line : lineNo(line), span.from);\n        if (side == -1) { return from }\n      }\n      if (span.to != null) {\n        to = Pos(lineObj ? line : lineNo(line), span.to);\n        if (side == 1) { return to }\n      }\n    }\n    return from && {from: from, to: to}\n  };\n\n  // Signals that the marker's widget changed, and surrounding layout\n  // should be recomputed.\n  TextMarker.prototype.changed = function () {\n      var this$1 = this;\n\n    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;\n    if (!pos || !cm) { return }\n    runInOp(cm, function () {\n      var line = pos.line, lineN = lineNo(pos.line);\n      var view = findViewForLine(cm, lineN);\n      if (view) {\n        clearLineMeasurementCacheFor(view);\n        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;\n      }\n      cm.curOp.updateMaxLine = true;\n      if (!lineIsHidden(widget.doc, line) && widget.height != null) {\n        var oldHeight = widget.height;\n        widget.height = null;\n        var dHeight = widgetHeight(widget) - oldHeight;\n        if (dHeight)\n          { updateLineHeight(line, line.height + dHeight); }\n      }\n      signalLater(cm, \"markerChanged\", cm, this$1);\n    });\n  };\n\n  TextMarker.prototype.attachLine = function (line) {\n    if (!this.lines.length && this.doc.cm) {\n      var op = this.doc.cm.curOp;\n      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)\n        { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }\n    }\n    this.lines.push(line);\n  };\n\n  TextMarker.prototype.detachLine = function (line) {\n    this.lines.splice(indexOf(this.lines, line), 1);\n    if (!this.lines.length && this.doc.cm) {\n      var op = this.doc.cm.curOp\n      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);\n    }\n  };\n  eventMixin(TextMarker);\n\n  // Create a marker, wire it up to the right lines, and\n  function markText(doc, from, to, options, type) {\n    // Shared markers (across linked documents) are handled separately\n    // (markTextShared will call out to this again, once per\n    // document).\n    if (options && options.shared) { return markTextShared(doc, from, to, options, type) }\n    // Ensure we are in an operation.\n    if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }\n\n    var marker = new TextMarker(doc, type), diff = cmp(from, to);\n    if (options) { copyObj(options, marker, false); }\n    // Don't connect empty markers unless clearWhenEmpty is false\n    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)\n      { return marker }\n    if (marker.replacedWith) {\n      // Showing up as a widget implies collapsed (widget replaces text)\n      marker.collapsed = true;\n      marker.widgetNode = eltP(\"span\", [marker.replacedWith], \"CodeMirror-widget\");\n      if (!options.handleMouseEvents) { marker.widgetNode.setAttribute(\"cm-ignore-events\", \"true\"); }\n      if (options.insertLeft) { marker.widgetNode.insertLeft = true; }\n    }\n    if (marker.collapsed) {\n      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||\n          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))\n        { throw new Error(\"Inserting collapsed marker partially overlapping an existing one\") }\n      seeCollapsedSpans();\n    }\n\n    if (marker.addToHistory)\n      { addChangeToHistory(doc, {from: from, to: to, origin: \"markText\"}, doc.sel, NaN); }\n\n    var curLine = from.line, cm = doc.cm, updateMaxLine;\n    doc.iter(curLine, to.line + 1, function (line) {\n      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)\n        { updateMaxLine = true; }\n      if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }\n      addMarkedSpan(line, new MarkedSpan(marker,\n                                         curLine == from.line ? from.ch : null,\n                                         curLine == to.line ? to.ch : null));\n      ++curLine;\n    });\n    // lineIsHidden depends on the presence of the spans, so needs a second pass\n    if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {\n      if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }\n    }); }\n\n    if (marker.clearOnEnter) { on(marker, \"beforeCursorEnter\", function () { return marker.clear(); }); }\n\n    if (marker.readOnly) {\n      seeReadOnlySpans();\n      if (doc.history.done.length || doc.history.undone.length)\n        { doc.clearHistory(); }\n    }\n    if (marker.collapsed) {\n      marker.id = ++nextMarkerId;\n      marker.atomic = true;\n    }\n    if (cm) {\n      // Sync editor state\n      if (updateMaxLine) { cm.curOp.updateMaxLine = true; }\n      if (marker.collapsed)\n        { regChange(cm, from.line, to.line + 1); }\n      else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||\n               marker.attributes || marker.title)\n        { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, \"text\"); } }\n      if (marker.atomic) { reCheckSelection(cm.doc); }\n      signalLater(cm, \"markerAdded\", cm, marker);\n    }\n    return marker\n  }\n\n  // SHARED TEXTMARKERS\n\n  // A shared marker spans multiple linked documents. It is\n  // implemented as a meta-marker-object controlling multiple normal\n  // markers.\n  var SharedTextMarker = function(markers, primary) {\n    this.markers = markers;\n    this.primary = primary;\n    for (var i = 0; i < markers.length; ++i)\n      { markers[i].parent = this; }\n  };\n\n  SharedTextMarker.prototype.clear = function () {\n    if (this.explicitlyCleared) { return }\n    this.explicitlyCleared = true;\n    for (var i = 0; i < this.markers.length; ++i)\n      { this.markers[i].clear(); }\n    signalLater(this, \"clear\");\n  };\n\n  SharedTextMarker.prototype.find = function (side, lineObj) {\n    return this.primary.find(side, lineObj)\n  };\n  eventMixin(SharedTextMarker);\n\n  function markTextShared(doc, from, to, options, type) {\n    options = copyObj(options);\n    options.shared = false;\n    var markers = [markText(doc, from, to, options, type)], primary = markers[0];\n    var widget = options.widgetNode;\n    linkedDocs(doc, function (doc) {\n      if (widget) { options.widgetNode = widget.cloneNode(true); }\n      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));\n      for (var i = 0; i < doc.linked.length; ++i)\n        { if (doc.linked[i].isParent) { return } }\n      primary = lst(markers);\n    });\n    return new SharedTextMarker(markers, primary)\n  }\n\n  function findSharedMarkers(doc) {\n    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })\n  }\n\n  function copySharedMarkers(doc, markers) {\n    for (var i = 0; i < markers.length; i++) {\n      var marker = markers[i], pos = marker.find();\n      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);\n      if (cmp(mFrom, mTo)) {\n        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);\n        marker.markers.push(subMark);\n        subMark.parent = marker;\n      }\n    }\n  }\n\n  function detachSharedMarkers(markers) {\n    var loop = function ( i ) {\n      var marker = markers[i], linked = [marker.primary.doc];\n      linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });\n      for (var j = 0; j < marker.markers.length; j++) {\n        var subMarker = marker.markers[j];\n        if (indexOf(linked, subMarker.doc) == -1) {\n          subMarker.parent = null;\n          marker.markers.splice(j--, 1);\n        }\n      }\n    };\n\n    for (var i = 0; i < markers.length; i++) loop( i );\n  }\n\n  var nextDocId = 0;\n  var Doc = function(text, mode, firstLine, lineSep, direction) {\n    if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }\n    if (firstLine == null) { firstLine = 0; }\n\n    BranchChunk.call(this, [new LeafChunk([new Line(\"\", null)])]);\n    this.first = firstLine;\n    this.scrollTop = this.scrollLeft = 0;\n    this.cantEdit = false;\n    this.cleanGeneration = 1;\n    this.modeFrontier = this.highlightFrontier = firstLine;\n    var start = Pos(firstLine, 0);\n    this.sel = simpleSelection(start);\n    this.history = new History(null);\n    this.id = ++nextDocId;\n    this.modeOption = mode;\n    this.lineSep = lineSep;\n    this.direction = (direction == \"rtl\") ? \"rtl\" : \"ltr\";\n    this.extend = false;\n\n    if (typeof text == \"string\") { text = this.splitLines(text); }\n    updateDoc(this, {from: start, to: start, text: text});\n    setSelection(this, simpleSelection(start), sel_dontScroll);\n  };\n\n  Doc.prototype = createObj(BranchChunk.prototype, {\n    constructor: Doc,\n    // Iterate over the document. Supports two forms -- with only one\n    // argument, it calls that for each line in the document. With\n    // three, it iterates over the range given by the first two (with\n    // the second being non-inclusive).\n    iter: function(from, to, op) {\n      if (op) { this.iterN(from - this.first, to - from, op); }\n      else { this.iterN(this.first, this.first + this.size, from); }\n    },\n\n    // Non-public interface for adding and removing lines.\n    insert: function(at, lines) {\n      var height = 0;\n      for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }\n      this.insertInner(at - this.first, lines, height);\n    },\n    remove: function(at, n) { this.removeInner(at - this.first, n); },\n\n    // From here, the methods are part of the public interface. Most\n    // are also available from CodeMirror (editor) instances.\n\n    getValue: function(lineSep) {\n      var lines = getLines(this, this.first, this.first + this.size);\n      if (lineSep === false) { return lines }\n      return lines.join(lineSep || this.lineSeparator())\n    },\n    setValue: docMethodOp(function(code) {\n      var top = Pos(this.first, 0), last = this.first + this.size - 1;\n      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),\n                        text: this.splitLines(code), origin: \"setValue\", full: true}, true);\n      if (this.cm) { scrollToCoords(this.cm, 0, 0); }\n      setSelection(this, simpleSelection(top), sel_dontScroll);\n    }),\n    replaceRange: function(code, from, to, origin) {\n      from = clipPos(this, from);\n      to = to ? clipPos(this, to) : from;\n      replaceRange(this, code, from, to, origin);\n    },\n    getRange: function(from, to, lineSep) {\n      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));\n      if (lineSep === false) { return lines }\n      return lines.join(lineSep || this.lineSeparator())\n    },\n\n    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},\n\n    getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},\n    getLineNumber: function(line) {return lineNo(line)},\n\n    getLineHandleVisualStart: function(line) {\n      if (typeof line == \"number\") { line = getLine(this, line); }\n      return visualLine(line)\n    },\n\n    lineCount: function() {return this.size},\n    firstLine: function() {return this.first},\n    lastLine: function() {return this.first + this.size - 1},\n\n    clipPos: function(pos) {return clipPos(this, pos)},\n\n    getCursor: function(start) {\n      var range = this.sel.primary(), pos;\n      if (start == null || start == \"head\") { pos = range.head; }\n      else if (start == \"anchor\") { pos = range.anchor; }\n      else if (start == \"end\" || start == \"to\" || start === false) { pos = range.to(); }\n      else { pos = range.from(); }\n      return pos\n    },\n    listSelections: function() { return this.sel.ranges },\n    somethingSelected: function() {return this.sel.somethingSelected()},\n\n    setCursor: docMethodOp(function(line, ch, options) {\n      setSimpleSelection(this, clipPos(this, typeof line == \"number\" ? Pos(line, ch || 0) : line), null, options);\n    }),\n    setSelection: docMethodOp(function(anchor, head, options) {\n      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);\n    }),\n    extendSelection: docMethodOp(function(head, other, options) {\n      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);\n    }),\n    extendSelections: docMethodOp(function(heads, options) {\n      extendSelections(this, clipPosArray(this, heads), options);\n    }),\n    extendSelectionsBy: docMethodOp(function(f, options) {\n      var heads = map(this.sel.ranges, f);\n      extendSelections(this, clipPosArray(this, heads), options);\n    }),\n    setSelections: docMethodOp(function(ranges, primary, options) {\n      if (!ranges.length) { return }\n      var out = [];\n      for (var i = 0; i < ranges.length; i++)\n        { out[i] = new Range(clipPos(this, ranges[i].anchor),\n                           clipPos(this, ranges[i].head)); }\n      if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }\n      setSelection(this, normalizeSelection(this.cm, out, primary), options);\n    }),\n    addSelection: docMethodOp(function(anchor, head, options) {\n      var ranges = this.sel.ranges.slice(0);\n      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));\n      setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);\n    }),\n\n    getSelection: function(lineSep) {\n      var ranges = this.sel.ranges, lines;\n      for (var i = 0; i < ranges.length; i++) {\n        var sel = getBetween(this, ranges[i].from(), ranges[i].to());\n        lines = lines ? lines.concat(sel) : sel;\n      }\n      if (lineSep === false) { return lines }\n      else { return lines.join(lineSep || this.lineSeparator()) }\n    },\n    getSelections: function(lineSep) {\n      var parts = [], ranges = this.sel.ranges;\n      for (var i = 0; i < ranges.length; i++) {\n        var sel = getBetween(this, ranges[i].from(), ranges[i].to());\n        if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }\n        parts[i] = sel;\n      }\n      return parts\n    },\n    replaceSelection: function(code, collapse, origin) {\n      var dup = [];\n      for (var i = 0; i < this.sel.ranges.length; i++)\n        { dup[i] = code; }\n      this.replaceSelections(dup, collapse, origin || \"+input\");\n    },\n    replaceSelections: docMethodOp(function(code, collapse, origin) {\n      var changes = [], sel = this.sel;\n      for (var i = 0; i < sel.ranges.length; i++) {\n        var range = sel.ranges[i];\n        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};\n      }\n      var newSel = collapse && collapse != \"end\" && computeReplacedSel(this, changes, collapse);\n      for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)\n        { makeChange(this, changes[i$1]); }\n      if (newSel) { setSelectionReplaceHistory(this, newSel); }\n      else if (this.cm) { ensureCursorVisible(this.cm); }\n    }),\n    undo: docMethodOp(function() {makeChangeFromHistory(this, \"undo\");}),\n    redo: docMethodOp(function() {makeChangeFromHistory(this, \"redo\");}),\n    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"undo\", true);}),\n    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"redo\", true);}),\n\n    setExtending: function(val) {this.extend = val;},\n    getExtending: function() {return this.extend},\n\n    historySize: function() {\n      var hist = this.history, done = 0, undone = 0;\n      for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }\n      for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }\n      return {undo: done, redo: undone}\n    },\n    clearHistory: function() {\n      var this$1 = this;\n\n      this.history = new History(this.history.maxGeneration);\n      linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);\n    },\n\n    markClean: function() {\n      this.cleanGeneration = this.changeGeneration(true);\n    },\n    changeGeneration: function(forceSplit) {\n      if (forceSplit)\n        { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }\n      return this.history.generation\n    },\n    isClean: function (gen) {\n      return this.history.generation == (gen || this.cleanGeneration)\n    },\n\n    getHistory: function() {\n      return {done: copyHistoryArray(this.history.done),\n              undone: copyHistoryArray(this.history.undone)}\n    },\n    setHistory: function(histData) {\n      var hist = this.history = new History(this.history.maxGeneration);\n      hist.done = copyHistoryArray(histData.done.slice(0), null, true);\n      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);\n    },\n\n    setGutterMarker: docMethodOp(function(line, gutterID, value) {\n      return changeLine(this, line, \"gutter\", function (line) {\n        var markers = line.gutterMarkers || (line.gutterMarkers = {});\n        markers[gutterID] = value;\n        if (!value && isEmpty(markers)) { line.gutterMarkers = null; }\n        return true\n      })\n    }),\n\n    clearGutter: docMethodOp(function(gutterID) {\n      var this$1 = this;\n\n      this.iter(function (line) {\n        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {\n          changeLine(this$1, line, \"gutter\", function () {\n            line.gutterMarkers[gutterID] = null;\n            if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }\n            return true\n          });\n        }\n      });\n    }),\n\n    lineInfo: function(line) {\n      var n;\n      if (typeof line == \"number\") {\n        if (!isLine(this, line)) { return null }\n        n = line;\n        line = getLine(this, line);\n        if (!line) { return null }\n      } else {\n        n = lineNo(line);\n        if (n == null) { return null }\n      }\n      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,\n              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,\n              widgets: line.widgets}\n    },\n\n    addLineClass: docMethodOp(function(handle, where, cls) {\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n        var prop = where == \"text\" ? \"textClass\"\n                 : where == \"background\" ? \"bgClass\"\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\n        if (!line[prop]) { line[prop] = cls; }\n        else if (classTest(cls).test(line[prop])) { return false }\n        else { line[prop] += \" \" + cls; }\n        return true\n      })\n    }),\n    removeLineClass: docMethodOp(function(handle, where, cls) {\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n        var prop = where == \"text\" ? \"textClass\"\n                 : where == \"background\" ? \"bgClass\"\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\n        var cur = line[prop];\n        if (!cur) { return false }\n        else if (cls == null) { line[prop] = null; }\n        else {\n          var found = cur.match(classTest(cls));\n          if (!found) { return false }\n          var end = found.index + found[0].length;\n          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? \"\" : \" \") + cur.slice(end) || null;\n        }\n        return true\n      })\n    }),\n\n    addLineWidget: docMethodOp(function(handle, node, options) {\n      return addLineWidget(this, handle, node, options)\n    }),\n    removeLineWidget: function(widget) { widget.clear(); },\n\n    markText: function(from, to, options) {\n      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || \"range\")\n    },\n    setBookmark: function(pos, options) {\n      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),\n                      insertLeft: options && options.insertLeft,\n                      clearWhenEmpty: false, shared: options && options.shared,\n                      handleMouseEvents: options && options.handleMouseEvents};\n      pos = clipPos(this, pos);\n      return markText(this, pos, pos, realOpts, \"bookmark\")\n    },\n    findMarksAt: function(pos) {\n      pos = clipPos(this, pos);\n      var markers = [], spans = getLine(this, pos.line).markedSpans;\n      if (spans) { for (var i = 0; i < spans.length; ++i) {\n        var span = spans[i];\n        if ((span.from == null || span.from <= pos.ch) &&\n            (span.to == null || span.to >= pos.ch))\n          { markers.push(span.marker.parent || span.marker); }\n      } }\n      return markers\n    },\n    findMarks: function(from, to, filter) {\n      from = clipPos(this, from); to = clipPos(this, to);\n      var found = [], lineNo = from.line;\n      this.iter(from.line, to.line + 1, function (line) {\n        var spans = line.markedSpans;\n        if (spans) { for (var i = 0; i < spans.length; i++) {\n          var span = spans[i];\n          if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||\n                span.from == null && lineNo != from.line ||\n                span.from != null && lineNo == to.line && span.from >= to.ch) &&\n              (!filter || filter(span.marker)))\n            { found.push(span.marker.parent || span.marker); }\n        } }\n        ++lineNo;\n      });\n      return found\n    },\n    getAllMarks: function() {\n      var markers = [];\n      this.iter(function (line) {\n        var sps = line.markedSpans;\n        if (sps) { for (var i = 0; i < sps.length; ++i)\n          { if (sps[i].from != null) { markers.push(sps[i].marker); } } }\n      });\n      return markers\n    },\n\n    posFromIndex: function(off) {\n      var ch, lineNo = this.first, sepSize = this.lineSeparator().length;\n      this.iter(function (line) {\n        var sz = line.text.length + sepSize;\n        if (sz > off) { ch = off; return true }\n        off -= sz;\n        ++lineNo;\n      });\n      return clipPos(this, Pos(lineNo, ch))\n    },\n    indexFromPos: function (coords) {\n      coords = clipPos(this, coords);\n      var index = coords.ch;\n      if (coords.line < this.first || coords.ch < 0) { return 0 }\n      var sepSize = this.lineSeparator().length;\n      this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value\n        index += line.text.length + sepSize;\n      });\n      return index\n    },\n\n    copy: function(copyHistory) {\n      var doc = new Doc(getLines(this, this.first, this.first + this.size),\n                        this.modeOption, this.first, this.lineSep, this.direction);\n      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;\n      doc.sel = this.sel;\n      doc.extend = false;\n      if (copyHistory) {\n        doc.history.undoDepth = this.history.undoDepth;\n        doc.setHistory(this.getHistory());\n      }\n      return doc\n    },\n\n    linkedDoc: function(options) {\n      if (!options) { options = {}; }\n      var from = this.first, to = this.first + this.size;\n      if (options.from != null && options.from > from) { from = options.from; }\n      if (options.to != null && options.to < to) { to = options.to; }\n      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);\n      if (options.sharedHist) { copy.history = this.history\n      ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});\n      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];\n      copySharedMarkers(copy, findSharedMarkers(this));\n      return copy\n    },\n    unlinkDoc: function(other) {\n      if (other instanceof CodeMirror) { other = other.doc; }\n      if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {\n        var link = this.linked[i];\n        if (link.doc != other) { continue }\n        this.linked.splice(i, 1);\n        other.unlinkDoc(this);\n        detachSharedMarkers(findSharedMarkers(this));\n        break\n      } }\n      // If the histories were shared, split them again\n      if (other.history == this.history) {\n        var splitIds = [other.id];\n        linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);\n        other.history = new History(null);\n        other.history.done = copyHistoryArray(this.history.done, splitIds);\n        other.history.undone = copyHistoryArray(this.history.undone, splitIds);\n      }\n    },\n    iterLinkedDocs: function(f) {linkedDocs(this, f);},\n\n    getMode: function() {return this.mode},\n    getEditor: function() {return this.cm},\n\n    splitLines: function(str) {\n      if (this.lineSep) { return str.split(this.lineSep) }\n      return splitLinesAuto(str)\n    },\n    lineSeparator: function() { return this.lineSep || \"\\n\" },\n\n    setDirection: docMethodOp(function (dir) {\n      if (dir != \"rtl\") { dir = \"ltr\"; }\n      if (dir == this.direction) { return }\n      this.direction = dir;\n      this.iter(function (line) { return line.order = null; });\n      if (this.cm) { directionChanged(this.cm); }\n    })\n  });\n\n  // Public alias.\n  Doc.prototype.eachLine = Doc.prototype.iter;\n\n  // Kludge to work around strange IE behavior where it'll sometimes\n  // re-fire a series of drag-related events right after the drop (#1551)\n  var lastDrop = 0;\n\n  function onDrop(e) {\n    var cm = this;\n    clearDragCursor(cm);\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))\n      { return }\n    e_preventDefault(e);\n    if (ie) { lastDrop = +new Date; }\n    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;\n    if (!pos || cm.isReadOnly()) { return }\n    // Might be a file drop, in which case we simply extract the text\n    // and insert it.\n    if (files && files.length && window.FileReader && window.File) {\n      var n = files.length, text = Array(n), read = 0;\n      var markAsReadAndPasteIfAllFilesAreRead = function () {\n        if (++read == n) {\n          operation(cm, function () {\n            pos = clipPos(cm.doc, pos);\n            var change = {from: pos, to: pos,\n                          text: cm.doc.splitLines(\n                              text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),\n                          origin: \"paste\"};\n            makeChange(cm.doc, change);\n            setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));\n          })();\n        }\n      };\n      var readTextFromFile = function (file, i) {\n        if (cm.options.allowDropFileTypes &&\n            indexOf(cm.options.allowDropFileTypes, file.type) == -1) {\n          markAsReadAndPasteIfAllFilesAreRead();\n          return\n        }\n        var reader = new FileReader;\n        reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };\n        reader.onload = function () {\n          var content = reader.result;\n          if (/[\\x00-\\x08\\x0e-\\x1f]{2}/.test(content)) {\n            markAsReadAndPasteIfAllFilesAreRead();\n            return\n          }\n          text[i] = content;\n          markAsReadAndPasteIfAllFilesAreRead();\n        };\n        reader.readAsText(file);\n      };\n      for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }\n    } else { // Normal drop\n      // Don't do a replace if the drop happened inside of the selected text.\n      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {\n        cm.state.draggingText(e);\n        // Ensure the editor is re-focused\n        setTimeout(function () { return cm.display.input.focus(); }, 20);\n        return\n      }\n      try {\n        var text$1 = e.dataTransfer.getData(\"Text\");\n        if (text$1) {\n          var selected;\n          if (cm.state.draggingText && !cm.state.draggingText.copy)\n            { selected = cm.listSelections(); }\n          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));\n          if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)\n            { replaceRange(cm.doc, \"\", selected[i$1].anchor, selected[i$1].head, \"drag\"); } }\n          cm.replaceSelection(text$1, \"around\", \"paste\");\n          cm.display.input.focus();\n        }\n      }\n      catch(e){}\n    }\n  }\n\n  function onDragStart(cm, e) {\n    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }\n\n    e.dataTransfer.setData(\"Text\", cm.getSelection());\n    e.dataTransfer.effectAllowed = \"copyMove\";\n\n    // Use dummy image instead of default browsers image.\n    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.\n    if (e.dataTransfer.setDragImage && !safari) {\n      var img = elt(\"img\", null, null, \"position: fixed; left: 0; top: 0;\");\n      img.src = \"data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\";\n      if (presto) {\n        img.width = img.height = 1;\n        cm.display.wrapper.appendChild(img);\n        // Force a relayout, or Opera won't use our image for some obscure reason\n        img._top = img.offsetTop;\n      }\n      e.dataTransfer.setDragImage(img, 0, 0);\n      if (presto) { img.parentNode.removeChild(img); }\n    }\n  }\n\n  function onDragOver(cm, e) {\n    var pos = posFromMouse(cm, e);\n    if (!pos) { return }\n    var frag = document.createDocumentFragment();\n    drawSelectionCursor(cm, pos, frag);\n    if (!cm.display.dragCursor) {\n      cm.display.dragCursor = elt(\"div\", null, \"CodeMirror-cursors CodeMirror-dragcursors\");\n      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);\n    }\n    removeChildrenAndAdd(cm.display.dragCursor, frag);\n  }\n\n  function clearDragCursor(cm) {\n    if (cm.display.dragCursor) {\n      cm.display.lineSpace.removeChild(cm.display.dragCursor);\n      cm.display.dragCursor = null;\n    }\n  }\n\n  // These must be handled carefully, because naively registering a\n  // handler for each editor will cause the editors to never be\n  // garbage collected.\n\n  function forEachCodeMirror(f) {\n    if (!document.getElementsByClassName) { return }\n    var byClass = document.getElementsByClassName(\"CodeMirror\"), editors = [];\n    for (var i = 0; i < byClass.length; i++) {\n      var cm = byClass[i].CodeMirror;\n      if (cm) { editors.push(cm); }\n    }\n    if (editors.length) { editors[0].operation(function () {\n      for (var i = 0; i < editors.length; i++) { f(editors[i]); }\n    }); }\n  }\n\n  var globalsRegistered = false;\n  function ensureGlobalHandlers() {\n    if (globalsRegistered) { return }\n    registerGlobalHandlers();\n    globalsRegistered = true;\n  }\n  function registerGlobalHandlers() {\n    // When the window resizes, we need to refresh active editors.\n    var resizeTimer;\n    on(window, \"resize\", function () {\n      if (resizeTimer == null) { resizeTimer = setTimeout(function () {\n        resizeTimer = null;\n        forEachCodeMirror(onResize);\n      }, 100); }\n    });\n    // When the window loses focus, we want to show the editor as blurred\n    on(window, \"blur\", function () { return forEachCodeMirror(onBlur); });\n  }\n  // Called when the window resizes\n  function onResize(cm) {\n    var d = cm.display;\n    // Might be a text scaling operation, clear size caches.\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\n    d.scrollbarsClipped = false;\n    cm.setSize();\n  }\n\n  var keyNames = {\n    3: \"Pause\", 8: \"Backspace\", 9: \"Tab\", 13: \"Enter\", 16: \"Shift\", 17: \"Ctrl\", 18: \"Alt\",\n    19: \"Pause\", 20: \"CapsLock\", 27: \"Esc\", 32: \"Space\", 33: \"PageUp\", 34: \"PageDown\", 35: \"End\",\n    36: \"Home\", 37: \"Left\", 38: \"Up\", 39: \"Right\", 40: \"Down\", 44: \"PrintScrn\", 45: \"Insert\",\n    46: \"Delete\", 59: \";\", 61: \"=\", 91: \"Mod\", 92: \"Mod\", 93: \"Mod\",\n    106: \"*\", 107: \"=\", 109: \"-\", 110: \".\", 111: \"/\", 145: \"ScrollLock\",\n    173: \"-\", 186: \";\", 187: \"=\", 188: \",\", 189: \"-\", 190: \".\", 191: \"/\", 192: \"`\", 219: \"[\", 220: \"\\\\\",\n    221: \"]\", 222: \"'\", 63232: \"Up\", 63233: \"Down\", 63234: \"Left\", 63235: \"Right\", 63272: \"Delete\",\n    63273: \"Home\", 63275: \"End\", 63276: \"PageUp\", 63277: \"PageDown\", 63302: \"Insert\"\n  };\n\n  // Number keys\n  for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }\n  // Alphabetic keys\n  for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }\n  // Function keys\n  for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = \"F\" + i$2; }\n\n  var keyMap = {};\n\n  keyMap.basic = {\n    \"Left\": \"goCharLeft\", \"Right\": \"goCharRight\", \"Up\": \"goLineUp\", \"Down\": \"goLineDown\",\n    \"End\": \"goLineEnd\", \"Home\": \"goLineStartSmart\", \"PageUp\": \"goPageUp\", \"PageDown\": \"goPageDown\",\n    \"Delete\": \"delCharAfter\", \"Backspace\": \"delCharBefore\", \"Shift-Backspace\": \"delCharBefore\",\n    \"Tab\": \"defaultTab\", \"Shift-Tab\": \"indentAuto\",\n    \"Enter\": \"newlineAndIndent\", \"Insert\": \"toggleOverwrite\",\n    \"Esc\": \"singleSelection\"\n  };\n  // Note that the save and find-related commands aren't defined by\n  // default. User code or addons can define them. Unknown commands\n  // are simply ignored.\n  keyMap.pcDefault = {\n    \"Ctrl-A\": \"selectAll\", \"Ctrl-D\": \"deleteLine\", \"Ctrl-Z\": \"undo\", \"Shift-Ctrl-Z\": \"redo\", \"Ctrl-Y\": \"redo\",\n    \"Ctrl-Home\": \"goDocStart\", \"Ctrl-End\": \"goDocEnd\", \"Ctrl-Up\": \"goLineUp\", \"Ctrl-Down\": \"goLineDown\",\n    \"Ctrl-Left\": \"goGroupLeft\", \"Ctrl-Right\": \"goGroupRight\", \"Alt-Left\": \"goLineStart\", \"Alt-Right\": \"goLineEnd\",\n    \"Ctrl-Backspace\": \"delGroupBefore\", \"Ctrl-Delete\": \"delGroupAfter\", \"Ctrl-S\": \"save\", \"Ctrl-F\": \"find\",\n    \"Ctrl-G\": \"findNext\", \"Shift-Ctrl-G\": \"findPrev\", \"Shift-Ctrl-F\": \"replace\", \"Shift-Ctrl-R\": \"replaceAll\",\n    \"Ctrl-[\": \"indentLess\", \"Ctrl-]\": \"indentMore\",\n    \"Ctrl-U\": \"undoSelection\", \"Shift-Ctrl-U\": \"redoSelection\", \"Alt-U\": \"redoSelection\",\n    \"fallthrough\": \"basic\"\n  };\n  // Very basic readline/emacs-style bindings, which are standard on Mac.\n  keyMap.emacsy = {\n    \"Ctrl-F\": \"goCharRight\", \"Ctrl-B\": \"goCharLeft\", \"Ctrl-P\": \"goLineUp\", \"Ctrl-N\": \"goLineDown\",\n    \"Alt-F\": \"goWordRight\", \"Alt-B\": \"goWordLeft\", \"Ctrl-A\": \"goLineStart\", \"Ctrl-E\": \"goLineEnd\",\n    \"Ctrl-V\": \"goPageDown\", \"Shift-Ctrl-V\": \"goPageUp\", \"Ctrl-D\": \"delCharAfter\", \"Ctrl-H\": \"delCharBefore\",\n    \"Alt-D\": \"delWordAfter\", \"Alt-Backspace\": \"delWordBefore\", \"Ctrl-K\": \"killLine\", \"Ctrl-T\": \"transposeChars\",\n    \"Ctrl-O\": \"openLine\"\n  };\n  keyMap.macDefault = {\n    \"Cmd-A\": \"selectAll\", \"Cmd-D\": \"deleteLine\", \"Cmd-Z\": \"undo\", \"Shift-Cmd-Z\": \"redo\", \"Cmd-Y\": \"redo\",\n    \"Cmd-Home\": \"goDocStart\", \"Cmd-Up\": \"goDocStart\", \"Cmd-End\": \"goDocEnd\", \"Cmd-Down\": \"goDocEnd\", \"Alt-Left\": \"goGroupLeft\",\n    \"Alt-Right\": \"goGroupRight\", \"Cmd-Left\": \"goLineLeft\", \"Cmd-Right\": \"goLineRight\", \"Alt-Backspace\": \"delGroupBefore\",\n    \"Ctrl-Alt-Backspace\": \"delGroupAfter\", \"Alt-Delete\": \"delGroupAfter\", \"Cmd-S\": \"save\", \"Cmd-F\": \"find\",\n    \"Cmd-G\": \"findNext\", \"Shift-Cmd-G\": \"findPrev\", \"Cmd-Alt-F\": \"replace\", \"Shift-Cmd-Alt-F\": \"replaceAll\",\n    \"Cmd-[\": \"indentLess\", \"Cmd-]\": \"indentMore\", \"Cmd-Backspace\": \"delWrappedLineLeft\", \"Cmd-Delete\": \"delWrappedLineRight\",\n    \"Cmd-U\": \"undoSelection\", \"Shift-Cmd-U\": \"redoSelection\", \"Ctrl-Up\": \"goDocStart\", \"Ctrl-Down\": \"goDocEnd\",\n    \"fallthrough\": [\"basic\", \"emacsy\"]\n  };\n  keyMap[\"default\"] = mac ? keyMap.macDefault : keyMap.pcDefault;\n\n  // KEYMAP DISPATCH\n\n  function normalizeKeyName(name) {\n    var parts = name.split(/-(?!$)/);\n    name = parts[parts.length - 1];\n    var alt, ctrl, shift, cmd;\n    for (var i = 0; i < parts.length - 1; i++) {\n      var mod = parts[i];\n      if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }\n      else if (/^a(lt)?$/i.test(mod)) { alt = true; }\n      else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }\n      else if (/^s(hift)?$/i.test(mod)) { shift = true; }\n      else { throw new Error(\"Unrecognized modifier name: \" + mod) }\n    }\n    if (alt) { name = \"Alt-\" + name; }\n    if (ctrl) { name = \"Ctrl-\" + name; }\n    if (cmd) { name = \"Cmd-\" + name; }\n    if (shift) { name = \"Shift-\" + name; }\n    return name\n  }\n\n  // This is a kludge to keep keymaps mostly working as raw objects\n  // (backwards compatibility) while at the same time support features\n  // like normalization and multi-stroke key bindings. It compiles a\n  // new normalized keymap, and then updates the old object to reflect\n  // this.\n  function normalizeKeyMap(keymap) {\n    var copy = {};\n    for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {\n      var value = keymap[keyname];\n      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }\n      if (value == \"...\") { delete keymap[keyname]; continue }\n\n      var keys = map(keyname.split(\" \"), normalizeKeyName);\n      for (var i = 0; i < keys.length; i++) {\n        var val = (void 0), name = (void 0);\n        if (i == keys.length - 1) {\n          name = keys.join(\" \");\n          val = value;\n        } else {\n          name = keys.slice(0, i + 1).join(\" \");\n          val = \"...\";\n        }\n        var prev = copy[name];\n        if (!prev) { copy[name] = val; }\n        else if (prev != val) { throw new Error(\"Inconsistent bindings for \" + name) }\n      }\n      delete keymap[keyname];\n    } }\n    for (var prop in copy) { keymap[prop] = copy[prop]; }\n    return keymap\n  }\n\n  function lookupKey(key, map, handle, context) {\n    map = getKeyMap(map);\n    var found = map.call ? map.call(key, context) : map[key];\n    if (found === false) { return \"nothing\" }\n    if (found === \"...\") { return \"multi\" }\n    if (found != null && handle(found)) { return \"handled\" }\n\n    if (map.fallthrough) {\n      if (Object.prototype.toString.call(map.fallthrough) != \"[object Array]\")\n        { return lookupKey(key, map.fallthrough, handle, context) }\n      for (var i = 0; i < map.fallthrough.length; i++) {\n        var result = lookupKey(key, map.fallthrough[i], handle, context);\n        if (result) { return result }\n      }\n    }\n  }\n\n  // Modifier key presses don't count as 'real' key presses for the\n  // purpose of keymap fallthrough.\n  function isModifierKey(value) {\n    var name = typeof value == \"string\" ? value : keyNames[value.keyCode];\n    return name == \"Ctrl\" || name == \"Alt\" || name == \"Shift\" || name == \"Mod\"\n  }\n\n  function addModifierNames(name, event, noShift) {\n    var base = name;\n    if (event.altKey && base != \"Alt\") { name = \"Alt-\" + name; }\n    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != \"Ctrl\") { name = \"Ctrl-\" + name; }\n    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != \"Cmd\") { name = \"Cmd-\" + name; }\n    if (!noShift && event.shiftKey && base != \"Shift\") { name = \"Shift-\" + name; }\n    return name\n  }\n\n  // Look up the name of a key as indicated by an event object.\n  function keyName(event, noShift) {\n    if (presto && event.keyCode == 34 && event[\"char\"]) { return false }\n    var name = keyNames[event.keyCode];\n    if (name == null || event.altGraphKey) { return false }\n    // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,\n    // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)\n    if (event.keyCode == 3 && event.code) { name = event.code; }\n    return addModifierNames(name, event, noShift)\n  }\n\n  function getKeyMap(val) {\n    return typeof val == \"string\" ? keyMap[val] : val\n  }\n\n  // Helper for deleting text near the selection(s), used to implement\n  // backspace, delete, and similar functionality.\n  function deleteNearSelection(cm, compute) {\n    var ranges = cm.doc.sel.ranges, kill = [];\n    // Build up a set of ranges to kill first, merging overlapping\n    // ranges.\n    for (var i = 0; i < ranges.length; i++) {\n      var toKill = compute(ranges[i]);\n      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {\n        var replaced = kill.pop();\n        if (cmp(replaced.from, toKill.from) < 0) {\n          toKill.from = replaced.from;\n          break\n        }\n      }\n      kill.push(toKill);\n    }\n    // Next, remove those actual ranges.\n    runInOp(cm, function () {\n      for (var i = kill.length - 1; i >= 0; i--)\n        { replaceRange(cm.doc, \"\", kill[i].from, kill[i].to, \"+delete\"); }\n      ensureCursorVisible(cm);\n    });\n  }\n\n  function moveCharLogically(line, ch, dir) {\n    var target = skipExtendingChars(line.text, ch + dir, dir);\n    return target < 0 || target > line.text.length ? null : target\n  }\n\n  function moveLogically(line, start, dir) {\n    var ch = moveCharLogically(line, start.ch, dir);\n    return ch == null ? null : new Pos(start.line, ch, dir < 0 ? \"after\" : \"before\")\n  }\n\n  function endOfLine(visually, cm, lineObj, lineNo, dir) {\n    if (visually) {\n      if (cm.doc.direction == \"rtl\") { dir = -dir; }\n      var order = getOrder(lineObj, cm.doc.direction);\n      if (order) {\n        var part = dir < 0 ? lst(order) : order[0];\n        var moveInStorageOrder = (dir < 0) == (part.level == 1);\n        var sticky = moveInStorageOrder ? \"after\" : \"before\";\n        var ch;\n        // With a wrapped rtl chunk (possibly spanning multiple bidi parts),\n        // it could be that the last bidi part is not on the last visual line,\n        // since visual lines contain content order-consecutive chunks.\n        // Thus, in rtl, we are looking for the first (content-order) character\n        // in the rtl chunk that is on the last line (that is, the same line\n        // as the last (content-order) character).\n        if (part.level > 0 || cm.doc.direction == \"rtl\") {\n          var prep = prepareMeasureForLine(cm, lineObj);\n          ch = dir < 0 ? lineObj.text.length - 1 : 0;\n          var targetTop = measureCharPrepared(cm, prep, ch).top;\n          ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);\n          if (sticky == \"before\") { ch = moveCharLogically(lineObj, ch, 1); }\n        } else { ch = dir < 0 ? part.to : part.from; }\n        return new Pos(lineNo, ch, sticky)\n      }\n    }\n    return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? \"before\" : \"after\")\n  }\n\n  function moveVisually(cm, line, start, dir) {\n    var bidi = getOrder(line, cm.doc.direction);\n    if (!bidi) { return moveLogically(line, start, dir) }\n    if (start.ch >= line.text.length) {\n      start.ch = line.text.length;\n      start.sticky = \"before\";\n    } else if (start.ch <= 0) {\n      start.ch = 0;\n      start.sticky = \"after\";\n    }\n    var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];\n    if (cm.doc.direction == \"ltr\" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {\n      // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,\n      // nothing interesting happens.\n      return moveLogically(line, start, dir)\n    }\n\n    var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };\n    var prep;\n    var getWrappedLineExtent = function (ch) {\n      if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }\n      prep = prep || prepareMeasureForLine(cm, line);\n      return wrappedLineExtentChar(cm, line, prep, ch)\n    };\n    var wrappedLineExtent = getWrappedLineExtent(start.sticky == \"before\" ? mv(start, -1) : start.ch);\n\n    if (cm.doc.direction == \"rtl\" || part.level == 1) {\n      var moveInStorageOrder = (part.level == 1) == (dir < 0);\n      var ch = mv(start, moveInStorageOrder ? 1 : -1);\n      if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {\n        // Case 2: We move within an rtl part or in an rtl editor on the same visual line\n        var sticky = moveInStorageOrder ? \"before\" : \"after\";\n        return new Pos(start.line, ch, sticky)\n      }\n    }\n\n    // Case 3: Could not move within this bidi part in this visual line, so leave\n    // the current bidi part\n\n    var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {\n      var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder\n        ? new Pos(start.line, mv(ch, 1), \"before\")\n        : new Pos(start.line, ch, \"after\"); };\n\n      for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {\n        var part = bidi[partPos];\n        var moveInStorageOrder = (dir > 0) == (part.level != 1);\n        var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);\n        if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }\n        ch = moveInStorageOrder ? part.from : mv(part.to, -1);\n        if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }\n      }\n    };\n\n    // Case 3a: Look for other bidi parts on the same visual line\n    var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);\n    if (res) { return res }\n\n    // Case 3b: Look for other bidi parts on the next visual line\n    var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);\n    if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {\n      res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));\n      if (res) { return res }\n    }\n\n    // Case 4: Nowhere to move\n    return null\n  }\n\n  // Commands are parameter-less actions that can be performed on an\n  // editor, mostly used for keybindings.\n  var commands = {\n    selectAll: selectAll,\n    singleSelection: function (cm) { return cm.setSelection(cm.getCursor(\"anchor\"), cm.getCursor(\"head\"), sel_dontScroll); },\n    killLine: function (cm) { return deleteNearSelection(cm, function (range) {\n      if (range.empty()) {\n        var len = getLine(cm.doc, range.head.line).text.length;\n        if (range.head.ch == len && range.head.line < cm.lastLine())\n          { return {from: range.head, to: Pos(range.head.line + 1, 0)} }\n        else\n          { return {from: range.head, to: Pos(range.head.line, len)} }\n      } else {\n        return {from: range.from(), to: range.to()}\n      }\n    }); },\n    deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n      from: Pos(range.from().line, 0),\n      to: clipPos(cm.doc, Pos(range.to().line + 1, 0))\n    }); }); },\n    delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n      from: Pos(range.from().line, 0), to: range.from()\n    }); }); },\n    delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {\n      var top = cm.charCoords(range.head, \"div\").top + 5;\n      var leftPos = cm.coordsChar({left: 0, top: top}, \"div\");\n      return {from: leftPos, to: range.from()}\n    }); },\n    delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {\n      var top = cm.charCoords(range.head, \"div\").top + 5;\n      var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\");\n      return {from: range.from(), to: rightPos }\n    }); },\n    undo: function (cm) { return cm.undo(); },\n    redo: function (cm) { return cm.redo(); },\n    undoSelection: function (cm) { return cm.undoSelection(); },\n    redoSelection: function (cm) { return cm.redoSelection(); },\n    goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },\n    goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },\n    goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },\n      {origin: \"+move\", bias: 1}\n    ); },\n    goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },\n      {origin: \"+move\", bias: 1}\n    ); },\n    goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },\n      {origin: \"+move\", bias: -1}\n    ); },\n    goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\")\n    }, sel_move); },\n    goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      return cm.coordsChar({left: 0, top: top}, \"div\")\n    }, sel_move); },\n    goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      var pos = cm.coordsChar({left: 0, top: top}, \"div\");\n      if (pos.ch < cm.getLine(pos.line).search(/\\S/)) { return lineStartSmart(cm, range.head) }\n      return pos\n    }, sel_move); },\n    goLineUp: function (cm) { return cm.moveV(-1, \"line\"); },\n    goLineDown: function (cm) { return cm.moveV(1, \"line\"); },\n    goPageUp: function (cm) { return cm.moveV(-1, \"page\"); },\n    goPageDown: function (cm) { return cm.moveV(1, \"page\"); },\n    goCharLeft: function (cm) { return cm.moveH(-1, \"char\"); },\n    goCharRight: function (cm) { return cm.moveH(1, \"char\"); },\n    goColumnLeft: function (cm) { return cm.moveH(-1, \"column\"); },\n    goColumnRight: function (cm) { return cm.moveH(1, \"column\"); },\n    goWordLeft: function (cm) { return cm.moveH(-1, \"word\"); },\n    goGroupRight: function (cm) { return cm.moveH(1, \"group\"); },\n    goGroupLeft: function (cm) { return cm.moveH(-1, \"group\"); },\n    goWordRight: function (cm) { return cm.moveH(1, \"word\"); },\n    delCharBefore: function (cm) { return cm.deleteH(-1, \"char\"); },\n    delCharAfter: function (cm) { return cm.deleteH(1, \"char\"); },\n    delWordBefore: function (cm) { return cm.deleteH(-1, \"word\"); },\n    delWordAfter: function (cm) { return cm.deleteH(1, \"word\"); },\n    delGroupBefore: function (cm) { return cm.deleteH(-1, \"group\"); },\n    delGroupAfter: function (cm) { return cm.deleteH(1, \"group\"); },\n    indentAuto: function (cm) { return cm.indentSelection(\"smart\"); },\n    indentMore: function (cm) { return cm.indentSelection(\"add\"); },\n    indentLess: function (cm) { return cm.indentSelection(\"subtract\"); },\n    insertTab: function (cm) { return cm.replaceSelection(\"\\t\"); },\n    insertSoftTab: function (cm) {\n      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;\n      for (var i = 0; i < ranges.length; i++) {\n        var pos = ranges[i].from();\n        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);\n        spaces.push(spaceStr(tabSize - col % tabSize));\n      }\n      cm.replaceSelections(spaces);\n    },\n    defaultTab: function (cm) {\n      if (cm.somethingSelected()) { cm.indentSelection(\"add\"); }\n      else { cm.execCommand(\"insertTab\"); }\n    },\n    // Swap the two chars left and right of each selection's head.\n    // Move cursor behind the two swapped characters afterwards.\n    //\n    // Doesn't consider line feeds a character.\n    // Doesn't scan more than one line above to find a character.\n    // Doesn't do anything on an empty line.\n    // Doesn't do anything with non-empty selections.\n    transposeChars: function (cm) { return runInOp(cm, function () {\n      var ranges = cm.listSelections(), newSel = [];\n      for (var i = 0; i < ranges.length; i++) {\n        if (!ranges[i].empty()) { continue }\n        var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;\n        if (line) {\n          if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }\n          if (cur.ch > 0) {\n            cur = new Pos(cur.line, cur.ch + 1);\n            cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),\n                            Pos(cur.line, cur.ch - 2), cur, \"+transpose\");\n          } else if (cur.line > cm.doc.first) {\n            var prev = getLine(cm.doc, cur.line - 1).text;\n            if (prev) {\n              cur = new Pos(cur.line, 1);\n              cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +\n                              prev.charAt(prev.length - 1),\n                              Pos(cur.line - 1, prev.length - 1), cur, \"+transpose\");\n            }\n          }\n        }\n        newSel.push(new Range(cur, cur));\n      }\n      cm.setSelections(newSel);\n    }); },\n    newlineAndIndent: function (cm) { return runInOp(cm, function () {\n      var sels = cm.listSelections();\n      for (var i = sels.length - 1; i >= 0; i--)\n        { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, \"+input\"); }\n      sels = cm.listSelections();\n      for (var i$1 = 0; i$1 < sels.length; i$1++)\n        { cm.indentLine(sels[i$1].from().line, null, true); }\n      ensureCursorVisible(cm);\n    }); },\n    openLine: function (cm) { return cm.replaceSelection(\"\\n\", \"start\"); },\n    toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }\n  };\n\n\n  function lineStart(cm, lineN) {\n    var line = getLine(cm.doc, lineN);\n    var visual = visualLine(line);\n    if (visual != line) { lineN = lineNo(visual); }\n    return endOfLine(true, cm, visual, lineN, 1)\n  }\n  function lineEnd(cm, lineN) {\n    var line = getLine(cm.doc, lineN);\n    var visual = visualLineEnd(line);\n    if (visual != line) { lineN = lineNo(visual); }\n    return endOfLine(true, cm, line, lineN, -1)\n  }\n  function lineStartSmart(cm, pos) {\n    var start = lineStart(cm, pos.line);\n    var line = getLine(cm.doc, start.line);\n    var order = getOrder(line, cm.doc.direction);\n    if (!order || order[0].level == 0) {\n      var firstNonWS = Math.max(start.ch, line.text.search(/\\S/));\n      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;\n      return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)\n    }\n    return start\n  }\n\n  // Run a handler that was bound to a key.\n  function doHandleBinding(cm, bound, dropShift) {\n    if (typeof bound == \"string\") {\n      bound = commands[bound];\n      if (!bound) { return false }\n    }\n    // Ensure previous input has been read, so that the handler sees a\n    // consistent view of the document\n    cm.display.input.ensurePolled();\n    var prevShift = cm.display.shift, done = false;\n    try {\n      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }\n      if (dropShift) { cm.display.shift = false; }\n      done = bound(cm) != Pass;\n    } finally {\n      cm.display.shift = prevShift;\n      cm.state.suppressEdits = false;\n    }\n    return done\n  }\n\n  function lookupKeyForEditor(cm, name, handle) {\n    for (var i = 0; i < cm.state.keyMaps.length; i++) {\n      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);\n      if (result) { return result }\n    }\n    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))\n      || lookupKey(name, cm.options.keyMap, handle, cm)\n  }\n\n  // Note that, despite the name, this function is also used to check\n  // for bound mouse clicks.\n\n  var stopSeq = new Delayed;\n\n  function dispatchKey(cm, name, e, handle) {\n    var seq = cm.state.keySeq;\n    if (seq) {\n      if (isModifierKey(name)) { return \"handled\" }\n      if (/\\'$/.test(name))\n        { cm.state.keySeq = null; }\n      else\n        { stopSeq.set(50, function () {\n          if (cm.state.keySeq == seq) {\n            cm.state.keySeq = null;\n            cm.display.input.reset();\n          }\n        }); }\n      if (dispatchKeyInner(cm, seq + \" \" + name, e, handle)) { return true }\n    }\n    return dispatchKeyInner(cm, name, e, handle)\n  }\n\n  function dispatchKeyInner(cm, name, e, handle) {\n    var result = lookupKeyForEditor(cm, name, handle);\n\n    if (result == \"multi\")\n      { cm.state.keySeq = name; }\n    if (result == \"handled\")\n      { signalLater(cm, \"keyHandled\", cm, name, e); }\n\n    if (result == \"handled\" || result == \"multi\") {\n      e_preventDefault(e);\n      restartBlink(cm);\n    }\n\n    return !!result\n  }\n\n  // Handle a key from the keydown event.\n  function handleKeyBinding(cm, e) {\n    var name = keyName(e, true);\n    if (!name) { return false }\n\n    if (e.shiftKey && !cm.state.keySeq) {\n      // First try to resolve full name (including 'Shift-'). Failing\n      // that, see if there is a cursor-motion command (starting with\n      // 'go') bound to the keyname without 'Shift-'.\n      return dispatchKey(cm, \"Shift-\" + name, e, function (b) { return doHandleBinding(cm, b, true); })\n          || dispatchKey(cm, name, e, function (b) {\n               if (typeof b == \"string\" ? /^go[A-Z]/.test(b) : b.motion)\n                 { return doHandleBinding(cm, b) }\n             })\n    } else {\n      return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })\n    }\n  }\n\n  // Handle a key from the keypress event\n  function handleCharBinding(cm, e, ch) {\n    return dispatchKey(cm, \"'\" + ch + \"'\", e, function (b) { return doHandleBinding(cm, b, true); })\n  }\n\n  var lastStoppedKey = null;\n  function onKeyDown(e) {\n    var cm = this;\n    cm.curOp.focus = activeElt();\n    if (signalDOMEvent(cm, e)) { return }\n    // IE does strange things with escape.\n    if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }\n    var code = e.keyCode;\n    cm.display.shift = code == 16 || e.shiftKey;\n    var handled = handleKeyBinding(cm, e);\n    if (presto) {\n      lastStoppedKey = handled ? code : null;\n      // Opera has no cut event... we try to at least catch the key combo\n      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))\n        { cm.replaceSelection(\"\", null, \"cut\"); }\n    }\n    if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)\n      { document.execCommand(\"cut\"); }\n\n    // Turn mouse into crosshair when Alt is held on Mac.\n    if (code == 18 && !/\\bCodeMirror-crosshair\\b/.test(cm.display.lineDiv.className))\n      { showCrossHair(cm); }\n  }\n\n  function showCrossHair(cm) {\n    var lineDiv = cm.display.lineDiv;\n    addClass(lineDiv, \"CodeMirror-crosshair\");\n\n    function up(e) {\n      if (e.keyCode == 18 || !e.altKey) {\n        rmClass(lineDiv, \"CodeMirror-crosshair\");\n        off(document, \"keyup\", up);\n        off(document, \"mouseover\", up);\n      }\n    }\n    on(document, \"keyup\", up);\n    on(document, \"mouseover\", up);\n  }\n\n  function onKeyUp(e) {\n    if (e.keyCode == 16) { this.doc.sel.shift = false; }\n    signalDOMEvent(this, e);\n  }\n\n  function onKeyPress(e) {\n    var cm = this;\n    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }\n    var keyCode = e.keyCode, charCode = e.charCode;\n    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}\n    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }\n    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);\n    // Some browsers fire keypress events for backspace\n    if (ch == \"\\x08\") { return }\n    if (handleCharBinding(cm, e, ch)) { return }\n    cm.display.input.onKeyPress(e);\n  }\n\n  var DOUBLECLICK_DELAY = 400;\n\n  var PastClick = function(time, pos, button) {\n    this.time = time;\n    this.pos = pos;\n    this.button = button;\n  };\n\n  PastClick.prototype.compare = function (time, pos, button) {\n    return this.time + DOUBLECLICK_DELAY > time &&\n      cmp(pos, this.pos) == 0 && button == this.button\n  };\n\n  var lastClick, lastDoubleClick;\n  function clickRepeat(pos, button) {\n    var now = +new Date;\n    if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {\n      lastClick = lastDoubleClick = null;\n      return \"triple\"\n    } else if (lastClick && lastClick.compare(now, pos, button)) {\n      lastDoubleClick = new PastClick(now, pos, button);\n      lastClick = null;\n      return \"double\"\n    } else {\n      lastClick = new PastClick(now, pos, button);\n      lastDoubleClick = null;\n      return \"single\"\n    }\n  }\n\n  // A mouse down can be a single click, double click, triple click,\n  // start of selection drag, start of text drag, new cursor\n  // (ctrl-click), rectangle drag (alt-drag), or xwin\n  // middle-click-paste. Or it might be a click on something we should\n  // not interfere with, such as a scrollbar or widget.\n  function onMouseDown(e) {\n    var cm = this, display = cm.display;\n    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }\n    display.input.ensurePolled();\n    display.shift = e.shiftKey;\n\n    if (eventInWidget(display, e)) {\n      if (!webkit) {\n        // Briefly turn off draggability, to allow widgets to do\n        // normal dragging things.\n        display.scroller.draggable = false;\n        setTimeout(function () { return display.scroller.draggable = true; }, 100);\n      }\n      return\n    }\n    if (clickInGutter(cm, e)) { return }\n    var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : \"single\";\n    window.focus();\n\n    // #3261: make sure, that we're not starting a second selection\n    if (button == 1 && cm.state.selectingText)\n      { cm.state.selectingText(e); }\n\n    if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }\n\n    if (button == 1) {\n      if (pos) { leftButtonDown(cm, pos, repeat, e); }\n      else if (e_target(e) == display.scroller) { e_preventDefault(e); }\n    } else if (button == 2) {\n      if (pos) { extendSelection(cm.doc, pos); }\n      setTimeout(function () { return display.input.focus(); }, 20);\n    } else if (button == 3) {\n      if (captureRightClick) { cm.display.input.onContextMenu(e); }\n      else { delayBlurEvent(cm); }\n    }\n  }\n\n  function handleMappedButton(cm, button, pos, repeat, event) {\n    var name = \"Click\";\n    if (repeat == \"double\") { name = \"Double\" + name; }\n    else if (repeat == \"triple\") { name = \"Triple\" + name; }\n    name = (button == 1 ? \"Left\" : button == 2 ? \"Middle\" : \"Right\") + name;\n\n    return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {\n      if (typeof bound == \"string\") { bound = commands[bound]; }\n      if (!bound) { return false }\n      var done = false;\n      try {\n        if (cm.isReadOnly()) { cm.state.suppressEdits = true; }\n        done = bound(cm, pos) != Pass;\n      } finally {\n        cm.state.suppressEdits = false;\n      }\n      return done\n    })\n  }\n\n  function configureMouse(cm, repeat, event) {\n    var option = cm.getOption(\"configureMouse\");\n    var value = option ? option(cm, repeat, event) : {};\n    if (value.unit == null) {\n      var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;\n      value.unit = rect ? \"rectangle\" : repeat == \"single\" ? \"char\" : repeat == \"double\" ? \"word\" : \"line\";\n    }\n    if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }\n    if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }\n    if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }\n    return value\n  }\n\n  function leftButtonDown(cm, pos, repeat, event) {\n    if (ie) { setTimeout(bind(ensureFocus, cm), 0); }\n    else { cm.curOp.focus = activeElt(); }\n\n    var behavior = configureMouse(cm, repeat, event);\n\n    var sel = cm.doc.sel, contained;\n    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&\n        repeat == \"single\" && (contained = sel.contains(pos)) > -1 &&\n        (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&\n        (cmp(contained.to(), pos) > 0 || pos.xRel < 0))\n      { leftButtonStartDrag(cm, event, pos, behavior); }\n    else\n      { leftButtonSelect(cm, event, pos, behavior); }\n  }\n\n  // Start a text drag. When it ends, see if any dragging actually\n  // happen, and treat as a click if it didn't.\n  function leftButtonStartDrag(cm, event, pos, behavior) {\n    var display = cm.display, moved = false;\n    var dragEnd = operation(cm, function (e) {\n      if (webkit) { display.scroller.draggable = false; }\n      cm.state.draggingText = false;\n      off(display.wrapper.ownerDocument, \"mouseup\", dragEnd);\n      off(display.wrapper.ownerDocument, \"mousemove\", mouseMove);\n      off(display.scroller, \"dragstart\", dragStart);\n      off(display.scroller, \"drop\", dragEnd);\n      if (!moved) {\n        e_preventDefault(e);\n        if (!behavior.addNew)\n          { extendSelection(cm.doc, pos, null, null, behavior.extend); }\n        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)\n        if (webkit || ie && ie_version == 9)\n          { setTimeout(function () {display.wrapper.ownerDocument.body.focus(); display.input.focus();}, 20); }\n        else\n          { display.input.focus(); }\n      }\n    });\n    var mouseMove = function(e2) {\n      moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;\n    };\n    var dragStart = function () { return moved = true; };\n    // Let the drag handler handle this.\n    if (webkit) { display.scroller.draggable = true; }\n    cm.state.draggingText = dragEnd;\n    dragEnd.copy = !behavior.moveOnDrag;\n    // IE's approach to draggable\n    if (display.scroller.dragDrop) { display.scroller.dragDrop(); }\n    on(display.wrapper.ownerDocument, \"mouseup\", dragEnd);\n    on(display.wrapper.ownerDocument, \"mousemove\", mouseMove);\n    on(display.scroller, \"dragstart\", dragStart);\n    on(display.scroller, \"drop\", dragEnd);\n\n    delayBlurEvent(cm);\n    setTimeout(function () { return display.input.focus(); }, 20);\n  }\n\n  function rangeForUnit(cm, pos, unit) {\n    if (unit == \"char\") { return new Range(pos, pos) }\n    if (unit == \"word\") { return cm.findWordAt(pos) }\n    if (unit == \"line\") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }\n    var result = unit(cm, pos);\n    return new Range(result.from, result.to)\n  }\n\n  // Normal selection, as opposed to text dragging.\n  function leftButtonSelect(cm, event, start, behavior) {\n    var display = cm.display, doc = cm.doc;\n    e_preventDefault(event);\n\n    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;\n    if (behavior.addNew && !behavior.extend) {\n      ourIndex = doc.sel.contains(start);\n      if (ourIndex > -1)\n        { ourRange = ranges[ourIndex]; }\n      else\n        { ourRange = new Range(start, start); }\n    } else {\n      ourRange = doc.sel.primary();\n      ourIndex = doc.sel.primIndex;\n    }\n\n    if (behavior.unit == \"rectangle\") {\n      if (!behavior.addNew) { ourRange = new Range(start, start); }\n      start = posFromMouse(cm, event, true, true);\n      ourIndex = -1;\n    } else {\n      var range = rangeForUnit(cm, start, behavior.unit);\n      if (behavior.extend)\n        { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }\n      else\n        { ourRange = range; }\n    }\n\n    if (!behavior.addNew) {\n      ourIndex = 0;\n      setSelection(doc, new Selection([ourRange], 0), sel_mouse);\n      startSel = doc.sel;\n    } else if (ourIndex == -1) {\n      ourIndex = ranges.length;\n      setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),\n                   {scroll: false, origin: \"*mouse\"});\n    } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == \"char\" && !behavior.extend) {\n      setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),\n                   {scroll: false, origin: \"*mouse\"});\n      startSel = doc.sel;\n    } else {\n      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);\n    }\n\n    var lastPos = start;\n    function extendTo(pos) {\n      if (cmp(lastPos, pos) == 0) { return }\n      lastPos = pos;\n\n      if (behavior.unit == \"rectangle\") {\n        var ranges = [], tabSize = cm.options.tabSize;\n        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);\n        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);\n        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);\n        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));\n             line <= end; line++) {\n          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);\n          if (left == right)\n            { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }\n          else if (text.length > leftPos)\n            { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }\n        }\n        if (!ranges.length) { ranges.push(new Range(start, start)); }\n        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),\n                     {origin: \"*mouse\", scroll: false});\n        cm.scrollIntoView(pos);\n      } else {\n        var oldRange = ourRange;\n        var range = rangeForUnit(cm, pos, behavior.unit);\n        var anchor = oldRange.anchor, head;\n        if (cmp(range.anchor, anchor) > 0) {\n          head = range.head;\n          anchor = minPos(oldRange.from(), range.anchor);\n        } else {\n          head = range.anchor;\n          anchor = maxPos(oldRange.to(), range.head);\n        }\n        var ranges$1 = startSel.ranges.slice(0);\n        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));\n        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);\n      }\n    }\n\n    var editorSize = display.wrapper.getBoundingClientRect();\n    // Used to ensure timeout re-tries don't fire when another extend\n    // happened in the meantime (clearTimeout isn't reliable -- at\n    // least on Chrome, the timeouts still happen even when cleared,\n    // if the clear happens after their scheduled firing time).\n    var counter = 0;\n\n    function extend(e) {\n      var curCount = ++counter;\n      var cur = posFromMouse(cm, e, true, behavior.unit == \"rectangle\");\n      if (!cur) { return }\n      if (cmp(cur, lastPos) != 0) {\n        cm.curOp.focus = activeElt();\n        extendTo(cur);\n        var visible = visibleLines(display, doc);\n        if (cur.line >= visible.to || cur.line < visible.from)\n          { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }\n      } else {\n        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;\n        if (outside) { setTimeout(operation(cm, function () {\n          if (counter != curCount) { return }\n          display.scroller.scrollTop += outside;\n          extend(e);\n        }), 50); }\n      }\n    }\n\n    function done(e) {\n      cm.state.selectingText = false;\n      counter = Infinity;\n      // If e is null or undefined we interpret this as someone trying\n      // to explicitly cancel the selection rather than the user\n      // letting go of the mouse button.\n      if (e) {\n        e_preventDefault(e);\n        display.input.focus();\n      }\n      off(display.wrapper.ownerDocument, \"mousemove\", move);\n      off(display.wrapper.ownerDocument, \"mouseup\", up);\n      doc.history.lastSelOrigin = null;\n    }\n\n    var move = operation(cm, function (e) {\n      if (e.buttons === 0 || !e_button(e)) { done(e); }\n      else { extend(e); }\n    });\n    var up = operation(cm, done);\n    cm.state.selectingText = up;\n    on(display.wrapper.ownerDocument, \"mousemove\", move);\n    on(display.wrapper.ownerDocument, \"mouseup\", up);\n  }\n\n  // Used when mouse-selecting to adjust the anchor to the proper side\n  // of a bidi jump depending on the visual position of the head.\n  function bidiSimplify(cm, range) {\n    var anchor = range.anchor;\n    var head = range.head;\n    var anchorLine = getLine(cm.doc, anchor.line);\n    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }\n    var order = getOrder(anchorLine);\n    if (!order) { return range }\n    var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];\n    if (part.from != anchor.ch && part.to != anchor.ch) { return range }\n    var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);\n    if (boundary == 0 || boundary == order.length) { return range }\n\n    // Compute the relative visual position of the head compared to the\n    // anchor (<0 is to the left, >0 to the right)\n    var leftSide;\n    if (head.line != anchor.line) {\n      leftSide = (head.line - anchor.line) * (cm.doc.direction == \"ltr\" ? 1 : -1) > 0;\n    } else {\n      var headIndex = getBidiPartAt(order, head.ch, head.sticky);\n      var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);\n      if (headIndex == boundary - 1 || headIndex == boundary)\n        { leftSide = dir < 0; }\n      else\n        { leftSide = dir > 0; }\n    }\n\n    var usePart = order[boundary + (leftSide ? -1 : 0)];\n    var from = leftSide == (usePart.level == 1);\n    var ch = from ? usePart.from : usePart.to, sticky = from ? \"after\" : \"before\";\n    return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)\n  }\n\n\n  // Determines whether an event happened in the gutter, and fires the\n  // handlers for the corresponding event.\n  function gutterEvent(cm, e, type, prevent) {\n    var mX, mY;\n    if (e.touches) {\n      mX = e.touches[0].clientX;\n      mY = e.touches[0].clientY;\n    } else {\n      try { mX = e.clientX; mY = e.clientY; }\n      catch(e) { return false }\n    }\n    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }\n    if (prevent) { e_preventDefault(e); }\n\n    var display = cm.display;\n    var lineBox = display.lineDiv.getBoundingClientRect();\n\n    if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }\n    mY -= lineBox.top - display.viewOffset;\n\n    for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {\n      var g = display.gutters.childNodes[i];\n      if (g && g.getBoundingClientRect().right >= mX) {\n        var line = lineAtHeight(cm.doc, mY);\n        var gutter = cm.display.gutterSpecs[i];\n        signal(cm, type, cm, line, gutter.className, e);\n        return e_defaultPrevented(e)\n      }\n    }\n  }\n\n  function clickInGutter(cm, e) {\n    return gutterEvent(cm, e, \"gutterClick\", true)\n  }\n\n  // CONTEXT MENU HANDLING\n\n  // To make the context menu work, we need to briefly unhide the\n  // textarea (making it as unobtrusive as possible) to let the\n  // right-click take effect on it.\n  function onContextMenu(cm, e) {\n    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }\n    if (signalDOMEvent(cm, e, \"contextmenu\")) { return }\n    if (!captureRightClick) { cm.display.input.onContextMenu(e); }\n  }\n\n  function contextMenuInGutter(cm, e) {\n    if (!hasHandler(cm, \"gutterContextMenu\")) { return false }\n    return gutterEvent(cm, e, \"gutterContextMenu\", false)\n  }\n\n  function themeChanged(cm) {\n    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\\s*cm-s-\\S+/g, \"\") +\n      cm.options.theme.replace(/(^|\\s)\\s*/g, \" cm-s-\");\n    clearCaches(cm);\n  }\n\n  var Init = {toString: function(){return \"CodeMirror.Init\"}};\n\n  var defaults = {};\n  var optionHandlers = {};\n\n  function defineOptions(CodeMirror) {\n    var optionHandlers = CodeMirror.optionHandlers;\n\n    function option(name, deflt, handle, notOnInit) {\n      CodeMirror.defaults[name] = deflt;\n      if (handle) { optionHandlers[name] =\n        notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }\n    }\n\n    CodeMirror.defineOption = option;\n\n    // Passed to option handlers when there is no old value.\n    CodeMirror.Init = Init;\n\n    // These two are, on init, called from the constructor because they\n    // have to be initialized before the editor can start at all.\n    option(\"value\", \"\", function (cm, val) { return cm.setValue(val); }, true);\n    option(\"mode\", null, function (cm, val) {\n      cm.doc.modeOption = val;\n      loadMode(cm);\n    }, true);\n\n    option(\"indentUnit\", 2, loadMode, true);\n    option(\"indentWithTabs\", false);\n    option(\"smartIndent\", true);\n    option(\"tabSize\", 4, function (cm) {\n      resetModeState(cm);\n      clearCaches(cm);\n      regChange(cm);\n    }, true);\n\n    option(\"lineSeparator\", null, function (cm, val) {\n      cm.doc.lineSep = val;\n      if (!val) { return }\n      var newBreaks = [], lineNo = cm.doc.first;\n      cm.doc.iter(function (line) {\n        for (var pos = 0;;) {\n          var found = line.text.indexOf(val, pos);\n          if (found == -1) { break }\n          pos = found + val.length;\n          newBreaks.push(Pos(lineNo, found));\n        }\n        lineNo++;\n      });\n      for (var i = newBreaks.length - 1; i >= 0; i--)\n        { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }\n    });\n    option(\"specialChars\", /[\\u0000-\\u001f\\u007f-\\u009f\\u00ad\\u061c\\u200b-\\u200f\\u2028\\u2029\\ufeff\\ufff9-\\ufffc]/g, function (cm, val, old) {\n      cm.state.specialChars = new RegExp(val.source + (val.test(\"\\t\") ? \"\" : \"|\\t\"), \"g\");\n      if (old != Init) { cm.refresh(); }\n    });\n    option(\"specialCharPlaceholder\", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);\n    option(\"electricChars\", true);\n    option(\"inputStyle\", mobile ? \"contenteditable\" : \"textarea\", function () {\n      throw new Error(\"inputStyle can not (yet) be changed in a running editor\") // FIXME\n    }, true);\n    option(\"spellcheck\", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);\n    option(\"autocorrect\", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);\n    option(\"autocapitalize\", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);\n    option(\"rtlMoveVisually\", !windows);\n    option(\"wholeLineUpdateBefore\", true);\n\n    option(\"theme\", \"default\", function (cm) {\n      themeChanged(cm);\n      updateGutters(cm);\n    }, true);\n    option(\"keyMap\", \"default\", function (cm, val, old) {\n      var next = getKeyMap(val);\n      var prev = old != Init && getKeyMap(old);\n      if (prev && prev.detach) { prev.detach(cm, next); }\n      if (next.attach) { next.attach(cm, prev || null); }\n    });\n    option(\"extraKeys\", null);\n    option(\"configureMouse\", null);\n\n    option(\"lineWrapping\", false, wrappingChanged, true);\n    option(\"gutters\", [], function (cm, val) {\n      cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);\n      updateGutters(cm);\n    }, true);\n    option(\"fixedGutter\", true, function (cm, val) {\n      cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + \"px\" : \"0\";\n      cm.refresh();\n    }, true);\n    option(\"coverGutterNextToScrollbar\", false, function (cm) { return updateScrollbars(cm); }, true);\n    option(\"scrollbarStyle\", \"native\", function (cm) {\n      initScrollbars(cm);\n      updateScrollbars(cm);\n      cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);\n      cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);\n    }, true);\n    option(\"lineNumbers\", false, function (cm, val) {\n      cm.display.gutterSpecs = getGutters(cm.options.gutters, val);\n      updateGutters(cm);\n    }, true);\n    option(\"firstLineNumber\", 1, updateGutters, true);\n    option(\"lineNumberFormatter\", function (integer) { return integer; }, updateGutters, true);\n    option(\"showCursorWhenSelecting\", false, updateSelection, true);\n\n    option(\"resetSelectionOnContextMenu\", true);\n    option(\"lineWiseCopyCut\", true);\n    option(\"pasteLinesPerSelection\", true);\n    option(\"selectionsMayTouch\", false);\n\n    option(\"readOnly\", false, function (cm, val) {\n      if (val == \"nocursor\") {\n        onBlur(cm);\n        cm.display.input.blur();\n      }\n      cm.display.input.readOnlyChanged(val);\n    });\n    option(\"disableInput\", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);\n    option(\"dragDrop\", true, dragDropChanged);\n    option(\"allowDropFileTypes\", null);\n\n    option(\"cursorBlinkRate\", 530);\n    option(\"cursorScrollMargin\", 0);\n    option(\"cursorHeight\", 1, updateSelection, true);\n    option(\"singleCursorHeightPerLine\", true, updateSelection, true);\n    option(\"workTime\", 100);\n    option(\"workDelay\", 100);\n    option(\"flattenSpans\", true, resetModeState, true);\n    option(\"addModeClass\", false, resetModeState, true);\n    option(\"pollInterval\", 100);\n    option(\"undoDepth\", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });\n    option(\"historyEventDelay\", 1250);\n    option(\"viewportMargin\", 10, function (cm) { return cm.refresh(); }, true);\n    option(\"maxHighlightLength\", 10000, resetModeState, true);\n    option(\"moveInputWithCursor\", true, function (cm, val) {\n      if (!val) { cm.display.input.resetPosition(); }\n    });\n\n    option(\"tabindex\", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || \"\"; });\n    option(\"autofocus\", null);\n    option(\"direction\", \"ltr\", function (cm, val) { return cm.doc.setDirection(val); }, true);\n    option(\"phrases\", null);\n  }\n\n  function dragDropChanged(cm, value, old) {\n    var wasOn = old && old != Init;\n    if (!value != !wasOn) {\n      var funcs = cm.display.dragFunctions;\n      var toggle = value ? on : off;\n      toggle(cm.display.scroller, \"dragstart\", funcs.start);\n      toggle(cm.display.scroller, \"dragenter\", funcs.enter);\n      toggle(cm.display.scroller, \"dragover\", funcs.over);\n      toggle(cm.display.scroller, \"dragleave\", funcs.leave);\n      toggle(cm.display.scroller, \"drop\", funcs.drop);\n    }\n  }\n\n  function wrappingChanged(cm) {\n    if (cm.options.lineWrapping) {\n      addClass(cm.display.wrapper, \"CodeMirror-wrap\");\n      cm.display.sizer.style.minWidth = \"\";\n      cm.display.sizerWidth = null;\n    } else {\n      rmClass(cm.display.wrapper, \"CodeMirror-wrap\");\n      findMaxLine(cm);\n    }\n    estimateLineHeights(cm);\n    regChange(cm);\n    clearCaches(cm);\n    setTimeout(function () { return updateScrollbars(cm); }, 100);\n  }\n\n  // A CodeMirror instance represents an editor. This is the object\n  // that user code is usually dealing with.\n\n  function CodeMirror(place, options) {\n    var this$1 = this;\n\n    if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }\n\n    this.options = options = options ? copyObj(options) : {};\n    // Determine effective options based on given values and defaults.\n    copyObj(defaults, options, false);\n\n    var doc = options.value;\n    if (typeof doc == \"string\") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }\n    else if (options.mode) { doc.modeOption = options.mode; }\n    this.doc = doc;\n\n    var input = new CodeMirror.inputStyles[options.inputStyle](this);\n    var display = this.display = new Display(place, doc, input, options);\n    display.wrapper.CodeMirror = this;\n    themeChanged(this);\n    if (options.lineWrapping)\n      { this.display.wrapper.className += \" CodeMirror-wrap\"; }\n    initScrollbars(this);\n\n    this.state = {\n      keyMaps: [],  // stores maps added by addKeyMap\n      overlays: [], // highlighting overlays, as added by addOverlay\n      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info\n      overwrite: false,\n      delayingBlurEvent: false,\n      focused: false,\n      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode\n      pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll\n      selectingText: false,\n      draggingText: false,\n      highlight: new Delayed(), // stores highlight worker timeout\n      keySeq: null,  // Unfinished key sequence\n      specialChars: null\n    };\n\n    if (options.autofocus && !mobile) { display.input.focus(); }\n\n    // Override magic textarea content restore that IE sometimes does\n    // on our hidden textarea on reload\n    if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }\n\n    registerEventHandlers(this);\n    ensureGlobalHandlers();\n\n    startOperation(this);\n    this.curOp.forceUpdate = true;\n    attachDoc(this, doc);\n\n    if ((options.autofocus && !mobile) || this.hasFocus())\n      { setTimeout(bind(onFocus, this), 20); }\n    else\n      { onBlur(this); }\n\n    for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))\n      { optionHandlers[opt](this, options[opt], Init); } }\n    maybeUpdateLineNumberWidth(this);\n    if (options.finishInit) { options.finishInit(this); }\n    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }\n    endOperation(this);\n    // Suppress optimizelegibility in Webkit, since it breaks text\n    // measuring on line wrapping boundaries.\n    if (webkit && options.lineWrapping &&\n        getComputedStyle(display.lineDiv).textRendering == \"optimizelegibility\")\n      { display.lineDiv.style.textRendering = \"auto\"; }\n  }\n\n  // The default configuration options.\n  CodeMirror.defaults = defaults;\n  // Functions to run when options are changed.\n  CodeMirror.optionHandlers = optionHandlers;\n\n  // Attach the necessary event handlers when initializing the editor\n  function registerEventHandlers(cm) {\n    var d = cm.display;\n    on(d.scroller, \"mousedown\", operation(cm, onMouseDown));\n    // Older IE's will not fire a second mousedown for a double click\n    if (ie && ie_version < 11)\n      { on(d.scroller, \"dblclick\", operation(cm, function (e) {\n        if (signalDOMEvent(cm, e)) { return }\n        var pos = posFromMouse(cm, e);\n        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }\n        e_preventDefault(e);\n        var word = cm.findWordAt(pos);\n        extendSelection(cm.doc, word.anchor, word.head);\n      })); }\n    else\n      { on(d.scroller, \"dblclick\", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }\n    // Some browsers fire contextmenu *after* opening the menu, at\n    // which point we can't mess with it anymore. Context menu is\n    // handled in onMouseDown for these browsers.\n    on(d.scroller, \"contextmenu\", function (e) { return onContextMenu(cm, e); });\n    on(d.input.getField(), \"contextmenu\", function (e) {\n      if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }\n    });\n\n    // Used to suppress mouse event handling when a touch happens\n    var touchFinished, prevTouch = {end: 0};\n    function finishTouch() {\n      if (d.activeTouch) {\n        touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);\n        prevTouch = d.activeTouch;\n        prevTouch.end = +new Date;\n      }\n    }\n    function isMouseLikeTouchEvent(e) {\n      if (e.touches.length != 1) { return false }\n      var touch = e.touches[0];\n      return touch.radiusX <= 1 && touch.radiusY <= 1\n    }\n    function farAway(touch, other) {\n      if (other.left == null) { return true }\n      var dx = other.left - touch.left, dy = other.top - touch.top;\n      return dx * dx + dy * dy > 20 * 20\n    }\n    on(d.scroller, \"touchstart\", function (e) {\n      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {\n        d.input.ensurePolled();\n        clearTimeout(touchFinished);\n        var now = +new Date;\n        d.activeTouch = {start: now, moved: false,\n                         prev: now - prevTouch.end <= 300 ? prevTouch : null};\n        if (e.touches.length == 1) {\n          d.activeTouch.left = e.touches[0].pageX;\n          d.activeTouch.top = e.touches[0].pageY;\n        }\n      }\n    });\n    on(d.scroller, \"touchmove\", function () {\n      if (d.activeTouch) { d.activeTouch.moved = true; }\n    });\n    on(d.scroller, \"touchend\", function (e) {\n      var touch = d.activeTouch;\n      if (touch && !eventInWidget(d, e) && touch.left != null &&\n          !touch.moved && new Date - touch.start < 300) {\n        var pos = cm.coordsChar(d.activeTouch, \"page\"), range;\n        if (!touch.prev || farAway(touch, touch.prev)) // Single tap\n          { range = new Range(pos, pos); }\n        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap\n          { range = cm.findWordAt(pos); }\n        else // Triple tap\n          { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }\n        cm.setSelection(range.anchor, range.head);\n        cm.focus();\n        e_preventDefault(e);\n      }\n      finishTouch();\n    });\n    on(d.scroller, \"touchcancel\", finishTouch);\n\n    // Sync scrolling between fake scrollbars and real scrollable\n    // area, ensure viewport is updated when scrolling.\n    on(d.scroller, \"scroll\", function () {\n      if (d.scroller.clientHeight) {\n        updateScrollTop(cm, d.scroller.scrollTop);\n        setScrollLeft(cm, d.scroller.scrollLeft, true);\n        signal(cm, \"scroll\", cm);\n      }\n    });\n\n    // Listen to wheel events in order to try and update the viewport on time.\n    on(d.scroller, \"mousewheel\", function (e) { return onScrollWheel(cm, e); });\n    on(d.scroller, \"DOMMouseScroll\", function (e) { return onScrollWheel(cm, e); });\n\n    // Prevent wrapper from ever scrolling\n    on(d.wrapper, \"scroll\", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });\n\n    d.dragFunctions = {\n      enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},\n      over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},\n      start: function (e) { return onDragStart(cm, e); },\n      drop: operation(cm, onDrop),\n      leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}\n    };\n\n    var inp = d.input.getField();\n    on(inp, \"keyup\", function (e) { return onKeyUp.call(cm, e); });\n    on(inp, \"keydown\", operation(cm, onKeyDown));\n    on(inp, \"keypress\", operation(cm, onKeyPress));\n    on(inp, \"focus\", function (e) { return onFocus(cm, e); });\n    on(inp, \"blur\", function (e) { return onBlur(cm, e); });\n  }\n\n  var initHooks = [];\n  CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };\n\n  // Indent the given line. The how parameter can be \"smart\",\n  // \"add\"/null, \"subtract\", or \"prev\". When aggressive is false\n  // (typically set to true for forced single-line indents), empty\n  // lines are not indented, and places where the mode returns Pass\n  // are left alone.\n  function indentLine(cm, n, how, aggressive) {\n    var doc = cm.doc, state;\n    if (how == null) { how = \"add\"; }\n    if (how == \"smart\") {\n      // Fall back to \"prev\" when the mode doesn't have an indentation\n      // method.\n      if (!doc.mode.indent) { how = \"prev\"; }\n      else { state = getContextBefore(cm, n).state; }\n    }\n\n    var tabSize = cm.options.tabSize;\n    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);\n    if (line.stateAfter) { line.stateAfter = null; }\n    var curSpaceString = line.text.match(/^\\s*/)[0], indentation;\n    if (!aggressive && !/\\S/.test(line.text)) {\n      indentation = 0;\n      how = \"not\";\n    } else if (how == \"smart\") {\n      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);\n      if (indentation == Pass || indentation > 150) {\n        if (!aggressive) { return }\n        how = \"prev\";\n      }\n    }\n    if (how == \"prev\") {\n      if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }\n      else { indentation = 0; }\n    } else if (how == \"add\") {\n      indentation = curSpace + cm.options.indentUnit;\n    } else if (how == \"subtract\") {\n      indentation = curSpace - cm.options.indentUnit;\n    } else if (typeof how == \"number\") {\n      indentation = curSpace + how;\n    }\n    indentation = Math.max(0, indentation);\n\n    var indentString = \"\", pos = 0;\n    if (cm.options.indentWithTabs)\n      { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += \"\\t\";} }\n    if (pos < indentation) { indentString += spaceStr(indentation - pos); }\n\n    if (indentString != curSpaceString) {\n      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), \"+input\");\n      line.stateAfter = null;\n      return true\n    } else {\n      // Ensure that, if the cursor was in the whitespace at the start\n      // of the line, it is moved to the end of that space.\n      for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {\n        var range = doc.sel.ranges[i$1];\n        if (range.head.line == n && range.head.ch < curSpaceString.length) {\n          var pos$1 = Pos(n, curSpaceString.length);\n          replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));\n          break\n        }\n      }\n    }\n  }\n\n  // This will be set to a {lineWise: bool, text: [string]} object, so\n  // that, when pasting, we know what kind of selections the copied\n  // text was made out of.\n  var lastCopied = null;\n\n  function setLastCopied(newLastCopied) {\n    lastCopied = newLastCopied;\n  }\n\n  function applyTextInput(cm, inserted, deleted, sel, origin) {\n    var doc = cm.doc;\n    cm.display.shift = false;\n    if (!sel) { sel = doc.sel; }\n\n    var recent = +new Date - 200;\n    var paste = origin == \"paste\" || cm.state.pasteIncoming > recent;\n    var textLines = splitLinesAuto(inserted), multiPaste = null;\n    // When pasting N lines into N selections, insert one line per selection\n    if (paste && sel.ranges.length > 1) {\n      if (lastCopied && lastCopied.text.join(\"\\n\") == inserted) {\n        if (sel.ranges.length % lastCopied.text.length == 0) {\n          multiPaste = [];\n          for (var i = 0; i < lastCopied.text.length; i++)\n            { multiPaste.push(doc.splitLines(lastCopied.text[i])); }\n        }\n      } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {\n        multiPaste = map(textLines, function (l) { return [l]; });\n      }\n    }\n\n    var updateInput = cm.curOp.updateInput;\n    // Normal behavior is to insert the new text into every selection\n    for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {\n      var range = sel.ranges[i$1];\n      var from = range.from(), to = range.to();\n      if (range.empty()) {\n        if (deleted && deleted > 0) // Handle deletion\n          { from = Pos(from.line, from.ch - deleted); }\n        else if (cm.state.overwrite && !paste) // Handle overwrite\n          { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }\n        else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join(\"\\n\") == inserted)\n          { from = to = Pos(from.line, 0); }\n      }\n      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,\n                         origin: origin || (paste ? \"paste\" : cm.state.cutIncoming > recent ? \"cut\" : \"+input\")};\n      makeChange(cm.doc, changeEvent);\n      signalLater(cm, \"inputRead\", cm, changeEvent);\n    }\n    if (inserted && !paste)\n      { triggerElectric(cm, inserted); }\n\n    ensureCursorVisible(cm);\n    if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }\n    cm.curOp.typing = true;\n    cm.state.pasteIncoming = cm.state.cutIncoming = -1;\n  }\n\n  function handlePaste(e, cm) {\n    var pasted = e.clipboardData && e.clipboardData.getData(\"Text\");\n    if (pasted) {\n      e.preventDefault();\n      if (!cm.isReadOnly() && !cm.options.disableInput)\n        { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, \"paste\"); }); }\n      return true\n    }\n  }\n\n  function triggerElectric(cm, inserted) {\n    // When an 'electric' character is inserted, immediately trigger a reindent\n    if (!cm.options.electricChars || !cm.options.smartIndent) { return }\n    var sel = cm.doc.sel;\n\n    for (var i = sel.ranges.length - 1; i >= 0; i--) {\n      var range = sel.ranges[i];\n      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }\n      var mode = cm.getModeAt(range.head);\n      var indented = false;\n      if (mode.electricChars) {\n        for (var j = 0; j < mode.electricChars.length; j++)\n          { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {\n            indented = indentLine(cm, range.head.line, \"smart\");\n            break\n          } }\n      } else if (mode.electricInput) {\n        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))\n          { indented = indentLine(cm, range.head.line, \"smart\"); }\n      }\n      if (indented) { signalLater(cm, \"electricInput\", cm, range.head.line); }\n    }\n  }\n\n  function copyableRanges(cm) {\n    var text = [], ranges = [];\n    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {\n      var line = cm.doc.sel.ranges[i].head.line;\n      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};\n      ranges.push(lineRange);\n      text.push(cm.getRange(lineRange.anchor, lineRange.head));\n    }\n    return {text: text, ranges: ranges}\n  }\n\n  function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {\n    field.setAttribute(\"autocorrect\", autocorrect ? \"\" : \"off\");\n    field.setAttribute(\"autocapitalize\", autocapitalize ? \"\" : \"off\");\n    field.setAttribute(\"spellcheck\", !!spellcheck);\n  }\n\n  function hiddenTextarea() {\n    var te = elt(\"textarea\", null, null, \"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none\");\n    var div = elt(\"div\", [te], null, \"overflow: hidden; position: relative; width: 3px; height: 0px;\");\n    // The textarea is kept positioned near the cursor to prevent the\n    // fact that it'll be scrolled into view on input from scrolling\n    // our fake cursor out of view. On webkit, when wrap=off, paste is\n    // very slow. So make the area wide instead.\n    if (webkit) { te.style.width = \"1000px\"; }\n    else { te.setAttribute(\"wrap\", \"off\"); }\n    // If border: 0; -- iOS fails to open keyboard (issue #1287)\n    if (ios) { te.style.border = \"1px solid black\"; }\n    disableBrowserMagic(te);\n    return div\n  }\n\n  // The publicly visible API. Note that methodOp(f) means\n  // 'wrap f in an operation, performed on its `this` parameter'.\n\n  // This is not the complete set of editor methods. Most of the\n  // methods defined on the Doc type are also injected into\n  // CodeMirror.prototype, for backwards compatibility and\n  // convenience.\n\n  function addEditorMethods(CodeMirror) {\n    var optionHandlers = CodeMirror.optionHandlers;\n\n    var helpers = CodeMirror.helpers = {};\n\n    CodeMirror.prototype = {\n      constructor: CodeMirror,\n      focus: function(){window.focus(); this.display.input.focus();},\n\n      setOption: function(option, value) {\n        var options = this.options, old = options[option];\n        if (options[option] == value && option != \"mode\") { return }\n        options[option] = value;\n        if (optionHandlers.hasOwnProperty(option))\n          { operation(this, optionHandlers[option])(this, value, old); }\n        signal(this, \"optionChange\", this, option);\n      },\n\n      getOption: function(option) {return this.options[option]},\n      getDoc: function() {return this.doc},\n\n      addKeyMap: function(map, bottom) {\n        this.state.keyMaps[bottom ? \"push\" : \"unshift\"](getKeyMap(map));\n      },\n      removeKeyMap: function(map) {\n        var maps = this.state.keyMaps;\n        for (var i = 0; i < maps.length; ++i)\n          { if (maps[i] == map || maps[i].name == map) {\n            maps.splice(i, 1);\n            return true\n          } }\n      },\n\n      addOverlay: methodOp(function(spec, options) {\n        var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);\n        if (mode.startState) { throw new Error(\"Overlays may not be stateful.\") }\n        insertSorted(this.state.overlays,\n                     {mode: mode, modeSpec: spec, opaque: options && options.opaque,\n                      priority: (options && options.priority) || 0},\n                     function (overlay) { return overlay.priority; });\n        this.state.modeGen++;\n        regChange(this);\n      }),\n      removeOverlay: methodOp(function(spec) {\n        var overlays = this.state.overlays;\n        for (var i = 0; i < overlays.length; ++i) {\n          var cur = overlays[i].modeSpec;\n          if (cur == spec || typeof spec == \"string\" && cur.name == spec) {\n            overlays.splice(i, 1);\n            this.state.modeGen++;\n            regChange(this);\n            return\n          }\n        }\n      }),\n\n      indentLine: methodOp(function(n, dir, aggressive) {\n        if (typeof dir != \"string\" && typeof dir != \"number\") {\n          if (dir == null) { dir = this.options.smartIndent ? \"smart\" : \"prev\"; }\n          else { dir = dir ? \"add\" : \"subtract\"; }\n        }\n        if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }\n      }),\n      indentSelection: methodOp(function(how) {\n        var ranges = this.doc.sel.ranges, end = -1;\n        for (var i = 0; i < ranges.length; i++) {\n          var range = ranges[i];\n          if (!range.empty()) {\n            var from = range.from(), to = range.to();\n            var start = Math.max(end, from.line);\n            end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;\n            for (var j = start; j < end; ++j)\n              { indentLine(this, j, how); }\n            var newRanges = this.doc.sel.ranges;\n            if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)\n              { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }\n          } else if (range.head.line > end) {\n            indentLine(this, range.head.line, how, true);\n            end = range.head.line;\n            if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }\n          }\n        }\n      }),\n\n      // Fetch the parser token for a given character. Useful for hacks\n      // that want to inspect the mode state (say, for completion).\n      getTokenAt: function(pos, precise) {\n        return takeToken(this, pos, precise)\n      },\n\n      getLineTokens: function(line, precise) {\n        return takeToken(this, Pos(line), precise, true)\n      },\n\n      getTokenTypeAt: function(pos) {\n        pos = clipPos(this.doc, pos);\n        var styles = getLineStyles(this, getLine(this.doc, pos.line));\n        var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;\n        var type;\n        if (ch == 0) { type = styles[2]; }\n        else { for (;;) {\n          var mid = (before + after) >> 1;\n          if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }\n          else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }\n          else { type = styles[mid * 2 + 2]; break }\n        } }\n        var cut = type ? type.indexOf(\"overlay \") : -1;\n        return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)\n      },\n\n      getModeAt: function(pos) {\n        var mode = this.doc.mode;\n        if (!mode.innerMode) { return mode }\n        return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode\n      },\n\n      getHelper: function(pos, type) {\n        return this.getHelpers(pos, type)[0]\n      },\n\n      getHelpers: function(pos, type) {\n        var found = [];\n        if (!helpers.hasOwnProperty(type)) { return found }\n        var help = helpers[type], mode = this.getModeAt(pos);\n        if (typeof mode[type] == \"string\") {\n          if (help[mode[type]]) { found.push(help[mode[type]]); }\n        } else if (mode[type]) {\n          for (var i = 0; i < mode[type].length; i++) {\n            var val = help[mode[type][i]];\n            if (val) { found.push(val); }\n          }\n        } else if (mode.helperType && help[mode.helperType]) {\n          found.push(help[mode.helperType]);\n        } else if (help[mode.name]) {\n          found.push(help[mode.name]);\n        }\n        for (var i$1 = 0; i$1 < help._global.length; i$1++) {\n          var cur = help._global[i$1];\n          if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)\n            { found.push(cur.val); }\n        }\n        return found\n      },\n\n      getStateAfter: function(line, precise) {\n        var doc = this.doc;\n        line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);\n        return getContextBefore(this, line + 1, precise).state\n      },\n\n      cursorCoords: function(start, mode) {\n        var pos, range = this.doc.sel.primary();\n        if (start == null) { pos = range.head; }\n        else if (typeof start == \"object\") { pos = clipPos(this.doc, start); }\n        else { pos = start ? range.from() : range.to(); }\n        return cursorCoords(this, pos, mode || \"page\")\n      },\n\n      charCoords: function(pos, mode) {\n        return charCoords(this, clipPos(this.doc, pos), mode || \"page\")\n      },\n\n      coordsChar: function(coords, mode) {\n        coords = fromCoordSystem(this, coords, mode || \"page\");\n        return coordsChar(this, coords.left, coords.top)\n      },\n\n      lineAtHeight: function(height, mode) {\n        height = fromCoordSystem(this, {top: height, left: 0}, mode || \"page\").top;\n        return lineAtHeight(this.doc, height + this.display.viewOffset)\n      },\n      heightAtLine: function(line, mode, includeWidgets) {\n        var end = false, lineObj;\n        if (typeof line == \"number\") {\n          var last = this.doc.first + this.doc.size - 1;\n          if (line < this.doc.first) { line = this.doc.first; }\n          else if (line > last) { line = last; end = true; }\n          lineObj = getLine(this.doc, line);\n        } else {\n          lineObj = line;\n        }\n        return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || \"page\", includeWidgets || end).top +\n          (end ? this.doc.height - heightAtLine(lineObj) : 0)\n      },\n\n      defaultTextHeight: function() { return textHeight(this.display) },\n      defaultCharWidth: function() { return charWidth(this.display) },\n\n      getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},\n\n      addWidget: function(pos, node, scroll, vert, horiz) {\n        var display = this.display;\n        pos = cursorCoords(this, clipPos(this.doc, pos));\n        var top = pos.bottom, left = pos.left;\n        node.style.position = \"absolute\";\n        node.setAttribute(\"cm-ignore-events\", \"true\");\n        this.display.input.setUneditable(node);\n        display.sizer.appendChild(node);\n        if (vert == \"over\") {\n          top = pos.top;\n        } else if (vert == \"above\" || vert == \"near\") {\n          var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),\n          hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);\n          // Default to positioning above (if specified and possible); otherwise default to positioning below\n          if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)\n            { top = pos.top - node.offsetHeight; }\n          else if (pos.bottom + node.offsetHeight <= vspace)\n            { top = pos.bottom; }\n          if (left + node.offsetWidth > hspace)\n            { left = hspace - node.offsetWidth; }\n        }\n        node.style.top = top + \"px\";\n        node.style.left = node.style.right = \"\";\n        if (horiz == \"right\") {\n          left = display.sizer.clientWidth - node.offsetWidth;\n          node.style.right = \"0px\";\n        } else {\n          if (horiz == \"left\") { left = 0; }\n          else if (horiz == \"middle\") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }\n          node.style.left = left + \"px\";\n        }\n        if (scroll)\n          { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }\n      },\n\n      triggerOnKeyDown: methodOp(onKeyDown),\n      triggerOnKeyPress: methodOp(onKeyPress),\n      triggerOnKeyUp: onKeyUp,\n      triggerOnMouseDown: methodOp(onMouseDown),\n\n      execCommand: function(cmd) {\n        if (commands.hasOwnProperty(cmd))\n          { return commands[cmd].call(null, this) }\n      },\n\n      triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),\n\n      findPosH: function(from, amount, unit, visually) {\n        var dir = 1;\n        if (amount < 0) { dir = -1; amount = -amount; }\n        var cur = clipPos(this.doc, from);\n        for (var i = 0; i < amount; ++i) {\n          cur = findPosH(this.doc, cur, dir, unit, visually);\n          if (cur.hitSide) { break }\n        }\n        return cur\n      },\n\n      moveH: methodOp(function(dir, unit) {\n        var this$1 = this;\n\n        this.extendSelectionsBy(function (range) {\n          if (this$1.display.shift || this$1.doc.extend || range.empty())\n            { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }\n          else\n            { return dir < 0 ? range.from() : range.to() }\n        }, sel_move);\n      }),\n\n      deleteH: methodOp(function(dir, unit) {\n        var sel = this.doc.sel, doc = this.doc;\n        if (sel.somethingSelected())\n          { doc.replaceSelection(\"\", null, \"+delete\"); }\n        else\n          { deleteNearSelection(this, function (range) {\n            var other = findPosH(doc, range.head, dir, unit, false);\n            return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}\n          }); }\n      }),\n\n      findPosV: function(from, amount, unit, goalColumn) {\n        var dir = 1, x = goalColumn;\n        if (amount < 0) { dir = -1; amount = -amount; }\n        var cur = clipPos(this.doc, from);\n        for (var i = 0; i < amount; ++i) {\n          var coords = cursorCoords(this, cur, \"div\");\n          if (x == null) { x = coords.left; }\n          else { coords.left = x; }\n          cur = findPosV(this, coords, dir, unit);\n          if (cur.hitSide) { break }\n        }\n        return cur\n      },\n\n      moveV: methodOp(function(dir, unit) {\n        var this$1 = this;\n\n        var doc = this.doc, goals = [];\n        var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();\n        doc.extendSelectionsBy(function (range) {\n          if (collapse)\n            { return dir < 0 ? range.from() : range.to() }\n          var headPos = cursorCoords(this$1, range.head, \"div\");\n          if (range.goalColumn != null) { headPos.left = range.goalColumn; }\n          goals.push(headPos.left);\n          var pos = findPosV(this$1, headPos, dir, unit);\n          if (unit == \"page\" && range == doc.sel.primary())\n            { addToScrollTop(this$1, charCoords(this$1, pos, \"div\").top - headPos.top); }\n          return pos\n        }, sel_move);\n        if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)\n          { doc.sel.ranges[i].goalColumn = goals[i]; } }\n      }),\n\n      // Find the word at the given position (as returned by coordsChar).\n      findWordAt: function(pos) {\n        var doc = this.doc, line = getLine(doc, pos.line).text;\n        var start = pos.ch, end = pos.ch;\n        if (line) {\n          var helper = this.getHelper(pos, \"wordChars\");\n          if ((pos.sticky == \"before\" || end == line.length) && start) { --start; } else { ++end; }\n          var startChar = line.charAt(start);\n          var check = isWordChar(startChar, helper)\n            ? function (ch) { return isWordChar(ch, helper); }\n            : /\\s/.test(startChar) ? function (ch) { return /\\s/.test(ch); }\n            : function (ch) { return (!/\\s/.test(ch) && !isWordChar(ch)); };\n          while (start > 0 && check(line.charAt(start - 1))) { --start; }\n          while (end < line.length && check(line.charAt(end))) { ++end; }\n        }\n        return new Range(Pos(pos.line, start), Pos(pos.line, end))\n      },\n\n      toggleOverwrite: function(value) {\n        if (value != null && value == this.state.overwrite) { return }\n        if (this.state.overwrite = !this.state.overwrite)\n          { addClass(this.display.cursorDiv, \"CodeMirror-overwrite\"); }\n        else\n          { rmClass(this.display.cursorDiv, \"CodeMirror-overwrite\"); }\n\n        signal(this, \"overwriteToggle\", this, this.state.overwrite);\n      },\n      hasFocus: function() { return this.display.input.getField() == activeElt() },\n      isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },\n\n      scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),\n      getScrollInfo: function() {\n        var scroller = this.display.scroller;\n        return {left: scroller.scrollLeft, top: scroller.scrollTop,\n                height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,\n                width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,\n                clientHeight: displayHeight(this), clientWidth: displayWidth(this)}\n      },\n\n      scrollIntoView: methodOp(function(range, margin) {\n        if (range == null) {\n          range = {from: this.doc.sel.primary().head, to: null};\n          if (margin == null) { margin = this.options.cursorScrollMargin; }\n        } else if (typeof range == \"number\") {\n          range = {from: Pos(range, 0), to: null};\n        } else if (range.from == null) {\n          range = {from: range, to: null};\n        }\n        if (!range.to) { range.to = range.from; }\n        range.margin = margin || 0;\n\n        if (range.from.line != null) {\n          scrollToRange(this, range);\n        } else {\n          scrollToCoordsRange(this, range.from, range.to, range.margin);\n        }\n      }),\n\n      setSize: methodOp(function(width, height) {\n        var this$1 = this;\n\n        var interpret = function (val) { return typeof val == \"number\" || /^\\d+$/.test(String(val)) ? val + \"px\" : val; };\n        if (width != null) { this.display.wrapper.style.width = interpret(width); }\n        if (height != null) { this.display.wrapper.style.height = interpret(height); }\n        if (this.options.lineWrapping) { clearLineMeasurementCache(this); }\n        var lineNo = this.display.viewFrom;\n        this.doc.iter(lineNo, this.display.viewTo, function (line) {\n          if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)\n            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, \"widget\"); break } } }\n          ++lineNo;\n        });\n        this.curOp.forceUpdate = true;\n        signal(this, \"refresh\", this);\n      }),\n\n      operation: function(f){return runInOp(this, f)},\n      startOperation: function(){return startOperation(this)},\n      endOperation: function(){return endOperation(this)},\n\n      refresh: methodOp(function() {\n        var oldHeight = this.display.cachedTextHeight;\n        regChange(this);\n        this.curOp.forceUpdate = true;\n        clearCaches(this);\n        scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);\n        updateGutterSpace(this.display);\n        if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)\n          { estimateLineHeights(this); }\n        signal(this, \"refresh\", this);\n      }),\n\n      swapDoc: methodOp(function(doc) {\n        var old = this.doc;\n        old.cm = null;\n        // Cancel the current text selection if any (#5821)\n        if (this.state.selectingText) { this.state.selectingText(); }\n        attachDoc(this, doc);\n        clearCaches(this);\n        this.display.input.reset();\n        scrollToCoords(this, doc.scrollLeft, doc.scrollTop);\n        this.curOp.forceScroll = true;\n        signalLater(this, \"swapDoc\", this, old);\n        return old\n      }),\n\n      phrase: function(phraseText) {\n        var phrases = this.options.phrases;\n        return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText\n      },\n\n      getInputField: function(){return this.display.input.getField()},\n      getWrapperElement: function(){return this.display.wrapper},\n      getScrollerElement: function(){return this.display.scroller},\n      getGutterElement: function(){return this.display.gutters}\n    };\n    eventMixin(CodeMirror);\n\n    CodeMirror.registerHelper = function(type, name, value) {\n      if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }\n      helpers[type][name] = value;\n    };\n    CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {\n      CodeMirror.registerHelper(type, name, value);\n      helpers[type]._global.push({pred: predicate, val: value});\n    };\n  }\n\n  // Used for horizontal relative motion. Dir is -1 or 1 (left or\n  // right), unit can be \"char\", \"column\" (like char, but doesn't\n  // cross line boundaries), \"word\" (across next word), or \"group\" (to\n  // the start of next group of word or non-word-non-whitespace\n  // chars). The visually param controls whether, in right-to-left\n  // text, direction 1 means to move towards the next index in the\n  // string, or towards the character to the right of the current\n  // position. The resulting position will have a hitSide=true\n  // property if it reached the end of the document.\n  function findPosH(doc, pos, dir, unit, visually) {\n    var oldPos = pos;\n    var origDir = dir;\n    var lineObj = getLine(doc, pos.line);\n    var lineDir = visually && doc.direction == \"rtl\" ? -dir : dir;\n    function findNextLine() {\n      var l = pos.line + lineDir;\n      if (l < doc.first || l >= doc.first + doc.size) { return false }\n      pos = new Pos(l, pos.ch, pos.sticky);\n      return lineObj = getLine(doc, l)\n    }\n    function moveOnce(boundToLine) {\n      var next;\n      if (visually) {\n        next = moveVisually(doc.cm, lineObj, pos, dir);\n      } else {\n        next = moveLogically(lineObj, pos, dir);\n      }\n      if (next == null) {\n        if (!boundToLine && findNextLine())\n          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }\n        else\n          { return false }\n      } else {\n        pos = next;\n      }\n      return true\n    }\n\n    if (unit == \"char\") {\n      moveOnce();\n    } else if (unit == \"column\") {\n      moveOnce(true);\n    } else if (unit == \"word\" || unit == \"group\") {\n      var sawType = null, group = unit == \"group\";\n      var helper = doc.cm && doc.cm.getHelper(pos, \"wordChars\");\n      for (var first = true;; first = false) {\n        if (dir < 0 && !moveOnce(!first)) { break }\n        var cur = lineObj.text.charAt(pos.ch) || \"\\n\";\n        var type = isWordChar(cur, helper) ? \"w\"\n          : group && cur == \"\\n\" ? \"n\"\n          : !group || /\\s/.test(cur) ? null\n          : \"p\";\n        if (group && !first && !type) { type = \"s\"; }\n        if (sawType && sawType != type) {\n          if (dir < 0) {dir = 1; moveOnce(); pos.sticky = \"after\";}\n          break\n        }\n\n        if (type) { sawType = type; }\n        if (dir > 0 && !moveOnce(!first)) { break }\n      }\n    }\n    var result = skipAtomic(doc, pos, oldPos, origDir, true);\n    if (equalCursorPos(oldPos, result)) { result.hitSide = true; }\n    return result\n  }\n\n  // For relative vertical movement. Dir may be -1 or 1. Unit can be\n  // \"page\" or \"line\". The resulting position will have a hitSide=true\n  // property if it reached the end of the document.\n  function findPosV(cm, pos, dir, unit) {\n    var doc = cm.doc, x = pos.left, y;\n    if (unit == \"page\") {\n      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);\n      var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);\n      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;\n\n    } else if (unit == \"line\") {\n      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;\n    }\n    var target;\n    for (;;) {\n      target = coordsChar(cm, x, y);\n      if (!target.outside) { break }\n      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }\n      y += dir * 5;\n    }\n    return target\n  }\n\n  // CONTENTEDITABLE INPUT STYLE\n\n  var ContentEditableInput = function(cm) {\n    this.cm = cm;\n    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;\n    this.polling = new Delayed();\n    this.composing = null;\n    this.gracePeriod = false;\n    this.readDOMTimeout = null;\n  };\n\n  ContentEditableInput.prototype.init = function (display) {\n      var this$1 = this;\n\n    var input = this, cm = input.cm;\n    var div = input.div = display.lineDiv;\n    disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);\n\n    on(div, \"paste\", function (e) {\n      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n      // IE doesn't fire input events, so we schedule a read for the pasted content in this way\n      if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }\n    });\n\n    on(div, \"compositionstart\", function (e) {\n      this$1.composing = {data: e.data, done: false};\n    });\n    on(div, \"compositionupdate\", function (e) {\n      if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }\n    });\n    on(div, \"compositionend\", function (e) {\n      if (this$1.composing) {\n        if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }\n        this$1.composing.done = true;\n      }\n    });\n\n    on(div, \"touchstart\", function () { return input.forceCompositionEnd(); });\n\n    on(div, \"input\", function () {\n      if (!this$1.composing) { this$1.readFromDOMSoon(); }\n    });\n\n    function onCopyCut(e) {\n      if (signalDOMEvent(cm, e)) { return }\n      if (cm.somethingSelected()) {\n        setLastCopied({lineWise: false, text: cm.getSelections()});\n        if (e.type == \"cut\") { cm.replaceSelection(\"\", null, \"cut\"); }\n      } else if (!cm.options.lineWiseCopyCut) {\n        return\n      } else {\n        var ranges = copyableRanges(cm);\n        setLastCopied({lineWise: true, text: ranges.text});\n        if (e.type == \"cut\") {\n          cm.operation(function () {\n            cm.setSelections(ranges.ranges, 0, sel_dontScroll);\n            cm.replaceSelection(\"\", null, \"cut\");\n          });\n        }\n      }\n      if (e.clipboardData) {\n        e.clipboardData.clearData();\n        var content = lastCopied.text.join(\"\\n\");\n        // iOS exposes the clipboard API, but seems to discard content inserted into it\n        e.clipboardData.setData(\"Text\", content);\n        if (e.clipboardData.getData(\"Text\") == content) {\n          e.preventDefault();\n          return\n        }\n      }\n      // Old-fashioned briefly-focus-a-textarea hack\n      var kludge = hiddenTextarea(), te = kludge.firstChild;\n      cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);\n      te.value = lastCopied.text.join(\"\\n\");\n      var hadFocus = document.activeElement;\n      selectInput(te);\n      setTimeout(function () {\n        cm.display.lineSpace.removeChild(kludge);\n        hadFocus.focus();\n        if (hadFocus == div) { input.showPrimarySelection(); }\n      }, 50);\n    }\n    on(div, \"copy\", onCopyCut);\n    on(div, \"cut\", onCopyCut);\n  };\n\n  ContentEditableInput.prototype.prepareSelection = function () {\n    var result = prepareSelection(this.cm, false);\n    result.focus = this.cm.state.focused;\n    return result\n  };\n\n  ContentEditableInput.prototype.showSelection = function (info, takeFocus) {\n    if (!info || !this.cm.display.view.length) { return }\n    if (info.focus || takeFocus) { this.showPrimarySelection(); }\n    this.showMultipleSelections(info);\n  };\n\n  ContentEditableInput.prototype.getSelection = function () {\n    return this.cm.display.wrapper.ownerDocument.getSelection()\n  };\n\n  ContentEditableInput.prototype.showPrimarySelection = function () {\n    var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();\n    var from = prim.from(), to = prim.to();\n\n    if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {\n      sel.removeAllRanges();\n      return\n    }\n\n    var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\n    var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);\n    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&\n        cmp(minPos(curAnchor, curFocus), from) == 0 &&\n        cmp(maxPos(curAnchor, curFocus), to) == 0)\n      { return }\n\n    var view = cm.display.view;\n    var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||\n        {node: view[0].measure.map[2], offset: 0};\n    var end = to.line < cm.display.viewTo && posToDOM(cm, to);\n    if (!end) {\n      var measure = view[view.length - 1].measure;\n      var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;\n      end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};\n    }\n\n    if (!start || !end) {\n      sel.removeAllRanges();\n      return\n    }\n\n    var old = sel.rangeCount && sel.getRangeAt(0), rng;\n    try { rng = range(start.node, start.offset, end.offset, end.node); }\n    catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible\n    if (rng) {\n      if (!gecko && cm.state.focused) {\n        sel.collapse(start.node, start.offset);\n        if (!rng.collapsed) {\n          sel.removeAllRanges();\n          sel.addRange(rng);\n        }\n      } else {\n        sel.removeAllRanges();\n        sel.addRange(rng);\n      }\n      if (old && sel.anchorNode == null) { sel.addRange(old); }\n      else if (gecko) { this.startGracePeriod(); }\n    }\n    this.rememberSelection();\n  };\n\n  ContentEditableInput.prototype.startGracePeriod = function () {\n      var this$1 = this;\n\n    clearTimeout(this.gracePeriod);\n    this.gracePeriod = setTimeout(function () {\n      this$1.gracePeriod = false;\n      if (this$1.selectionChanged())\n        { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }\n    }, 20);\n  };\n\n  ContentEditableInput.prototype.showMultipleSelections = function (info) {\n    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);\n    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);\n  };\n\n  ContentEditableInput.prototype.rememberSelection = function () {\n    var sel = this.getSelection();\n    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;\n    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;\n  };\n\n  ContentEditableInput.prototype.selectionInEditor = function () {\n    var sel = this.getSelection();\n    if (!sel.rangeCount) { return false }\n    var node = sel.getRangeAt(0).commonAncestorContainer;\n    return contains(this.div, node)\n  };\n\n  ContentEditableInput.prototype.focus = function () {\n    if (this.cm.options.readOnly != \"nocursor\") {\n      if (!this.selectionInEditor())\n        { this.showSelection(this.prepareSelection(), true); }\n      this.div.focus();\n    }\n  };\n  ContentEditableInput.prototype.blur = function () { this.div.blur(); };\n  ContentEditableInput.prototype.getField = function () { return this.div };\n\n  ContentEditableInput.prototype.supportsTouch = function () { return true };\n\n  ContentEditableInput.prototype.receivedFocus = function () {\n    var input = this;\n    if (this.selectionInEditor())\n      { this.pollSelection(); }\n    else\n      { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }\n\n    function poll() {\n      if (input.cm.state.focused) {\n        input.pollSelection();\n        input.polling.set(input.cm.options.pollInterval, poll);\n      }\n    }\n    this.polling.set(this.cm.options.pollInterval, poll);\n  };\n\n  ContentEditableInput.prototype.selectionChanged = function () {\n    var sel = this.getSelection();\n    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||\n      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset\n  };\n\n  ContentEditableInput.prototype.pollSelection = function () {\n    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }\n    var sel = this.getSelection(), cm = this.cm;\n    // On Android Chrome (version 56, at least), backspacing into an\n    // uneditable block element will put the cursor in that element,\n    // and then, because it's not editable, hide the virtual keyboard.\n    // Because Android doesn't allow us to actually detect backspace\n    // presses in a sane way, this code checks for when that happens\n    // and simulates a backspace press in this case.\n    if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {\n      this.cm.triggerOnKeyDown({type: \"keydown\", keyCode: 8, preventDefault: Math.abs});\n      this.blur();\n      this.focus();\n      return\n    }\n    if (this.composing) { return }\n    this.rememberSelection();\n    var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\n    var head = domToPos(cm, sel.focusNode, sel.focusOffset);\n    if (anchor && head) { runInOp(cm, function () {\n      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);\n      if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }\n    }); }\n  };\n\n  ContentEditableInput.prototype.pollContent = function () {\n    if (this.readDOMTimeout != null) {\n      clearTimeout(this.readDOMTimeout);\n      this.readDOMTimeout = null;\n    }\n\n    var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();\n    var from = sel.from(), to = sel.to();\n    if (from.ch == 0 && from.line > cm.firstLine())\n      { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }\n    if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())\n      { to = Pos(to.line + 1, 0); }\n    if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }\n\n    var fromIndex, fromLine, fromNode;\n    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {\n      fromLine = lineNo(display.view[0].line);\n      fromNode = display.view[0].node;\n    } else {\n      fromLine = lineNo(display.view[fromIndex].line);\n      fromNode = display.view[fromIndex - 1].node.nextSibling;\n    }\n    var toIndex = findViewIndex(cm, to.line);\n    var toLine, toNode;\n    if (toIndex == display.view.length - 1) {\n      toLine = display.viewTo - 1;\n      toNode = display.lineDiv.lastChild;\n    } else {\n      toLine = lineNo(display.view[toIndex + 1].line) - 1;\n      toNode = display.view[toIndex + 1].node.previousSibling;\n    }\n\n    if (!fromNode) { return false }\n    var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));\n    var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));\n    while (newText.length > 1 && oldText.length > 1) {\n      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }\n      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }\n      else { break }\n    }\n\n    var cutFront = 0, cutEnd = 0;\n    var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);\n    while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))\n      { ++cutFront; }\n    var newBot = lst(newText), oldBot = lst(oldText);\n    var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),\n                             oldBot.length - (oldText.length == 1 ? cutFront : 0));\n    while (cutEnd < maxCutEnd &&\n           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))\n      { ++cutEnd; }\n    // Try to move start of change to start of selection if ambiguous\n    if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {\n      while (cutFront && cutFront > from.ch &&\n             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {\n        cutFront--;\n        cutEnd++;\n      }\n    }\n\n    newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\\u200b+/, \"\");\n    newText[0] = newText[0].slice(cutFront).replace(/\\u200b+$/, \"\");\n\n    var chFrom = Pos(fromLine, cutFront);\n    var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);\n    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {\n      replaceRange(cm.doc, newText, chFrom, chTo, \"+input\");\n      return true\n    }\n  };\n\n  ContentEditableInput.prototype.ensurePolled = function () {\n    this.forceCompositionEnd();\n  };\n  ContentEditableInput.prototype.reset = function () {\n    this.forceCompositionEnd();\n  };\n  ContentEditableInput.prototype.forceCompositionEnd = function () {\n    if (!this.composing) { return }\n    clearTimeout(this.readDOMTimeout);\n    this.composing = null;\n    this.updateFromDOM();\n    this.div.blur();\n    this.div.focus();\n  };\n  ContentEditableInput.prototype.readFromDOMSoon = function () {\n      var this$1 = this;\n\n    if (this.readDOMTimeout != null) { return }\n    this.readDOMTimeout = setTimeout(function () {\n      this$1.readDOMTimeout = null;\n      if (this$1.composing) {\n        if (this$1.composing.done) { this$1.composing = null; }\n        else { return }\n      }\n      this$1.updateFromDOM();\n    }, 80);\n  };\n\n  ContentEditableInput.prototype.updateFromDOM = function () {\n      var this$1 = this;\n\n    if (this.cm.isReadOnly() || !this.pollContent())\n      { runInOp(this.cm, function () { return regChange(this$1.cm); }); }\n  };\n\n  ContentEditableInput.prototype.setUneditable = function (node) {\n    node.contentEditable = \"false\";\n  };\n\n  ContentEditableInput.prototype.onKeyPress = function (e) {\n    if (e.charCode == 0 || this.composing) { return }\n    e.preventDefault();\n    if (!this.cm.isReadOnly())\n      { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }\n  };\n\n  ContentEditableInput.prototype.readOnlyChanged = function (val) {\n    this.div.contentEditable = String(val != \"nocursor\");\n  };\n\n  ContentEditableInput.prototype.onContextMenu = function () {};\n  ContentEditableInput.prototype.resetPosition = function () {};\n\n  ContentEditableInput.prototype.needsContentAttribute = true;\n\n  function posToDOM(cm, pos) {\n    var view = findViewForLine(cm, pos.line);\n    if (!view || view.hidden) { return null }\n    var line = getLine(cm.doc, pos.line);\n    var info = mapFromLineView(view, line, pos.line);\n\n    var order = getOrder(line, cm.doc.direction), side = \"left\";\n    if (order) {\n      var partPos = getBidiPartAt(order, pos.ch);\n      side = partPos % 2 ? \"right\" : \"left\";\n    }\n    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);\n    result.offset = result.collapse == \"right\" ? result.end : result.start;\n    return result\n  }\n\n  function isInGutter(node) {\n    for (var scan = node; scan; scan = scan.parentNode)\n      { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }\n    return false\n  }\n\n  function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }\n\n  function domTextBetween(cm, from, to, fromLine, toLine) {\n    var text = \"\", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;\n    function recognizeMarker(id) { return function (marker) { return marker.id == id; } }\n    function close() {\n      if (closing) {\n        text += lineSep;\n        if (extraLinebreak) { text += lineSep; }\n        closing = extraLinebreak = false;\n      }\n    }\n    function addText(str) {\n      if (str) {\n        close();\n        text += str;\n      }\n    }\n    function walk(node) {\n      if (node.nodeType == 1) {\n        var cmText = node.getAttribute(\"cm-text\");\n        if (cmText) {\n          addText(cmText);\n          return\n        }\n        var markerID = node.getAttribute(\"cm-marker\"), range;\n        if (markerID) {\n          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));\n          if (found.length && (range = found[0].find(0)))\n            { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }\n          return\n        }\n        if (node.getAttribute(\"contenteditable\") == \"false\") { return }\n        var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);\n        if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }\n\n        if (isBlock) { close(); }\n        for (var i = 0; i < node.childNodes.length; i++)\n          { walk(node.childNodes[i]); }\n\n        if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }\n        if (isBlock) { closing = true; }\n      } else if (node.nodeType == 3) {\n        addText(node.nodeValue.replace(/\\u200b/g, \"\").replace(/\\u00a0/g, \" \"));\n      }\n    }\n    for (;;) {\n      walk(from);\n      if (from == to) { break }\n      from = from.nextSibling;\n      extraLinebreak = false;\n    }\n    return text\n  }\n\n  function domToPos(cm, node, offset) {\n    var lineNode;\n    if (node == cm.display.lineDiv) {\n      lineNode = cm.display.lineDiv.childNodes[offset];\n      if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }\n      node = null; offset = 0;\n    } else {\n      for (lineNode = node;; lineNode = lineNode.parentNode) {\n        if (!lineNode || lineNode == cm.display.lineDiv) { return null }\n        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }\n      }\n    }\n    for (var i = 0; i < cm.display.view.length; i++) {\n      var lineView = cm.display.view[i];\n      if (lineView.node == lineNode)\n        { return locateNodeInLineView(lineView, node, offset) }\n    }\n  }\n\n  function locateNodeInLineView(lineView, node, offset) {\n    var wrapper = lineView.text.firstChild, bad = false;\n    if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }\n    if (node == wrapper) {\n      bad = true;\n      node = wrapper.childNodes[offset];\n      offset = 0;\n      if (!node) {\n        var line = lineView.rest ? lst(lineView.rest) : lineView.line;\n        return badPos(Pos(lineNo(line), line.text.length), bad)\n      }\n    }\n\n    var textNode = node.nodeType == 3 ? node : null, topNode = node;\n    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {\n      textNode = node.firstChild;\n      if (offset) { offset = textNode.nodeValue.length; }\n    }\n    while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }\n    var measure = lineView.measure, maps = measure.maps;\n\n    function find(textNode, topNode, offset) {\n      for (var i = -1; i < (maps ? maps.length : 0); i++) {\n        var map = i < 0 ? measure.map : maps[i];\n        for (var j = 0; j < map.length; j += 3) {\n          var curNode = map[j + 2];\n          if (curNode == textNode || curNode == topNode) {\n            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);\n            var ch = map[j] + offset;\n            if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }\n            return Pos(line, ch)\n          }\n        }\n      }\n    }\n    var found = find(textNode, topNode, offset);\n    if (found) { return badPos(found, bad) }\n\n    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems\n    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {\n      found = find(after, after.firstChild, 0);\n      if (found)\n        { return badPos(Pos(found.line, found.ch - dist), bad) }\n      else\n        { dist += after.textContent.length; }\n    }\n    for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {\n      found = find(before, before.firstChild, -1);\n      if (found)\n        { return badPos(Pos(found.line, found.ch + dist$1), bad) }\n      else\n        { dist$1 += before.textContent.length; }\n    }\n  }\n\n  // TEXTAREA INPUT STYLE\n\n  var TextareaInput = function(cm) {\n    this.cm = cm;\n    // See input.poll and input.reset\n    this.prevInput = \"\";\n\n    // Flag that indicates whether we expect input to appear real soon\n    // now (after some event like 'keypress' or 'input') and are\n    // polling intensively.\n    this.pollingFast = false;\n    // Self-resetting timeout for the poller\n    this.polling = new Delayed();\n    // Used to work around IE issue with selection being forgotten when focus moves away from textarea\n    this.hasSelection = false;\n    this.composing = null;\n  };\n\n  TextareaInput.prototype.init = function (display) {\n      var this$1 = this;\n\n    var input = this, cm = this.cm;\n    this.createField(display);\n    var te = this.textarea;\n\n    display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);\n\n    // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)\n    if (ios) { te.style.width = \"0px\"; }\n\n    on(te, \"input\", function () {\n      if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }\n      input.poll();\n    });\n\n    on(te, \"paste\", function (e) {\n      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n\n      cm.state.pasteIncoming = +new Date;\n      input.fastPoll();\n    });\n\n    function prepareCopyCut(e) {\n      if (signalDOMEvent(cm, e)) { return }\n      if (cm.somethingSelected()) {\n        setLastCopied({lineWise: false, text: cm.getSelections()});\n      } else if (!cm.options.lineWiseCopyCut) {\n        return\n      } else {\n        var ranges = copyableRanges(cm);\n        setLastCopied({lineWise: true, text: ranges.text});\n        if (e.type == \"cut\") {\n          cm.setSelections(ranges.ranges, null, sel_dontScroll);\n        } else {\n          input.prevInput = \"\";\n          te.value = ranges.text.join(\"\\n\");\n          selectInput(te);\n        }\n      }\n      if (e.type == \"cut\") { cm.state.cutIncoming = +new Date; }\n    }\n    on(te, \"cut\", prepareCopyCut);\n    on(te, \"copy\", prepareCopyCut);\n\n    on(display.scroller, \"paste\", function (e) {\n      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }\n      if (!te.dispatchEvent) {\n        cm.state.pasteIncoming = +new Date;\n        input.focus();\n        return\n      }\n\n      // Pass the `paste` event to the textarea so it's handled by its event listener.\n      var event = new Event(\"paste\");\n      event.clipboardData = e.clipboardData;\n      te.dispatchEvent(event);\n    });\n\n    // Prevent normal selection in the editor (we handle our own)\n    on(display.lineSpace, \"selectstart\", function (e) {\n      if (!eventInWidget(display, e)) { e_preventDefault(e); }\n    });\n\n    on(te, \"compositionstart\", function () {\n      var start = cm.getCursor(\"from\");\n      if (input.composing) { input.composing.range.clear(); }\n      input.composing = {\n        start: start,\n        range: cm.markText(start, cm.getCursor(\"to\"), {className: \"CodeMirror-composing\"})\n      };\n    });\n    on(te, \"compositionend\", function () {\n      if (input.composing) {\n        input.poll();\n        input.composing.range.clear();\n        input.composing = null;\n      }\n    });\n  };\n\n  TextareaInput.prototype.createField = function (_display) {\n    // Wraps and hides input textarea\n    this.wrapper = hiddenTextarea();\n    // The semihidden textarea that is focused when the editor is\n    // focused, and receives input.\n    this.textarea = this.wrapper.firstChild;\n  };\n\n  TextareaInput.prototype.prepareSelection = function () {\n    // Redraw the selection and/or cursor\n    var cm = this.cm, display = cm.display, doc = cm.doc;\n    var result = prepareSelection(cm);\n\n    // Move the hidden textarea near the cursor to prevent scrolling artifacts\n    if (cm.options.moveInputWithCursor) {\n      var headPos = cursorCoords(cm, doc.sel.primary().head, \"div\");\n      var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();\n      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,\n                                          headPos.top + lineOff.top - wrapOff.top));\n      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,\n                                           headPos.left + lineOff.left - wrapOff.left));\n    }\n\n    return result\n  };\n\n  TextareaInput.prototype.showSelection = function (drawn) {\n    var cm = this.cm, display = cm.display;\n    removeChildrenAndAdd(display.cursorDiv, drawn.cursors);\n    removeChildrenAndAdd(display.selectionDiv, drawn.selection);\n    if (drawn.teTop != null) {\n      this.wrapper.style.top = drawn.teTop + \"px\";\n      this.wrapper.style.left = drawn.teLeft + \"px\";\n    }\n  };\n\n  // Reset the input to correspond to the selection (or to be empty,\n  // when not typing and nothing is selected)\n  TextareaInput.prototype.reset = function (typing) {\n    if (this.contextMenuPending || this.composing) { return }\n    var cm = this.cm;\n    if (cm.somethingSelected()) {\n      this.prevInput = \"\";\n      var content = cm.getSelection();\n      this.textarea.value = content;\n      if (cm.state.focused) { selectInput(this.textarea); }\n      if (ie && ie_version >= 9) { this.hasSelection = content; }\n    } else if (!typing) {\n      this.prevInput = this.textarea.value = \"\";\n      if (ie && ie_version >= 9) { this.hasSelection = null; }\n    }\n  };\n\n  TextareaInput.prototype.getField = function () { return this.textarea };\n\n  TextareaInput.prototype.supportsTouch = function () { return false };\n\n  TextareaInput.prototype.focus = function () {\n    if (this.cm.options.readOnly != \"nocursor\" && (!mobile || activeElt() != this.textarea)) {\n      try { this.textarea.focus(); }\n      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM\n    }\n  };\n\n  TextareaInput.prototype.blur = function () { this.textarea.blur(); };\n\n  TextareaInput.prototype.resetPosition = function () {\n    this.wrapper.style.top = this.wrapper.style.left = 0;\n  };\n\n  TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };\n\n  // Poll for input changes, using the normal rate of polling. This\n  // runs as long as the editor is focused.\n  TextareaInput.prototype.slowPoll = function () {\n      var this$1 = this;\n\n    if (this.pollingFast) { return }\n    this.polling.set(this.cm.options.pollInterval, function () {\n      this$1.poll();\n      if (this$1.cm.state.focused) { this$1.slowPoll(); }\n    });\n  };\n\n  // When an event has just come in that is likely to add or change\n  // something in the input textarea, we poll faster, to ensure that\n  // the change appears on the screen quickly.\n  TextareaInput.prototype.fastPoll = function () {\n    var missed = false, input = this;\n    input.pollingFast = true;\n    function p() {\n      var changed = input.poll();\n      if (!changed && !missed) {missed = true; input.polling.set(60, p);}\n      else {input.pollingFast = false; input.slowPoll();}\n    }\n    input.polling.set(20, p);\n  };\n\n  // Read input from the textarea, and update the document to match.\n  // When something is selected, it is present in the textarea, and\n  // selected (unless it is huge, in which case a placeholder is\n  // used). When nothing is selected, the cursor sits after previously\n  // seen text (can be empty), which is stored in prevInput (we must\n  // not reset the textarea when typing, because that breaks IME).\n  TextareaInput.prototype.poll = function () {\n      var this$1 = this;\n\n    var cm = this.cm, input = this.textarea, prevInput = this.prevInput;\n    // Since this is called a *lot*, try to bail out as cheaply as\n    // possible when it is clear that nothing happened. hasSelection\n    // will be the case when there is a lot of text in the textarea,\n    // in which case reading its value would be expensive.\n    if (this.contextMenuPending || !cm.state.focused ||\n        (hasSelection(input) && !prevInput && !this.composing) ||\n        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)\n      { return false }\n\n    var text = input.value;\n    // If nothing changed, bail.\n    if (text == prevInput && !cm.somethingSelected()) { return false }\n    // Work around nonsensical selection resetting in IE9/10, and\n    // inexplicable appearance of private area unicode characters on\n    // some key combos in Mac (#2689).\n    if (ie && ie_version >= 9 && this.hasSelection === text ||\n        mac && /[\\uf700-\\uf7ff]/.test(text)) {\n      cm.display.input.reset();\n      return false\n    }\n\n    if (cm.doc.sel == cm.display.selForContextMenu) {\n      var first = text.charCodeAt(0);\n      if (first == 0x200b && !prevInput) { prevInput = \"\\u200b\"; }\n      if (first == 0x21da) { this.reset(); return this.cm.execCommand(\"undo\") }\n    }\n    // Find the part of the input that is actually new\n    var same = 0, l = Math.min(prevInput.length, text.length);\n    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }\n\n    runInOp(cm, function () {\n      applyTextInput(cm, text.slice(same), prevInput.length - same,\n                     null, this$1.composing ? \"*compose\" : null);\n\n      // Don't leave long text in the textarea, since it makes further polling slow\n      if (text.length > 1000 || text.indexOf(\"\\n\") > -1) { input.value = this$1.prevInput = \"\"; }\n      else { this$1.prevInput = text; }\n\n      if (this$1.composing) {\n        this$1.composing.range.clear();\n        this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor(\"to\"),\n                                           {className: \"CodeMirror-composing\"});\n      }\n    });\n    return true\n  };\n\n  TextareaInput.prototype.ensurePolled = function () {\n    if (this.pollingFast && this.poll()) { this.pollingFast = false; }\n  };\n\n  TextareaInput.prototype.onKeyPress = function () {\n    if (ie && ie_version >= 9) { this.hasSelection = null; }\n    this.fastPoll();\n  };\n\n  TextareaInput.prototype.onContextMenu = function (e) {\n    var input = this, cm = input.cm, display = cm.display, te = input.textarea;\n    if (input.contextMenuPending) { input.contextMenuPending(); }\n    var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;\n    if (!pos || presto) { return } // Opera is difficult.\n\n    // Reset the current text selection only if the click is done outside of the selection\n    // and 'resetSelectionOnContextMenu' option is true.\n    var reset = cm.options.resetSelectionOnContextMenu;\n    if (reset && cm.doc.sel.contains(pos) == -1)\n      { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }\n\n    var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;\n    var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();\n    input.wrapper.style.cssText = \"position: static\";\n    te.style.cssText = \"position: absolute; width: 30px; height: 30px;\\n      top: \" + (e.clientY - wrapperBox.top - 5) + \"px; left: \" + (e.clientX - wrapperBox.left - 5) + \"px;\\n      z-index: 1000; background: \" + (ie ? \"rgba(255, 255, 255, .05)\" : \"transparent\") + \";\\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);\";\n    var oldScrollY;\n    if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)\n    display.input.focus();\n    if (webkit) { window.scrollTo(null, oldScrollY); }\n    display.input.reset();\n    // Adds \"Select all\" to context menu in FF\n    if (!cm.somethingSelected()) { te.value = input.prevInput = \" \"; }\n    input.contextMenuPending = rehide;\n    display.selForContextMenu = cm.doc.sel;\n    clearTimeout(display.detectingSelectAll);\n\n    // Select-all will be greyed out if there's nothing to select, so\n    // this adds a zero-width space so that we can later check whether\n    // it got selected.\n    function prepareSelectAllHack() {\n      if (te.selectionStart != null) {\n        var selected = cm.somethingSelected();\n        var extval = \"\\u200b\" + (selected ? te.value : \"\");\n        te.value = \"\\u21da\"; // Used to catch context-menu undo\n        te.value = extval;\n        input.prevInput = selected ? \"\" : \"\\u200b\";\n        te.selectionStart = 1; te.selectionEnd = extval.length;\n        // Re-set this, in case some other handler touched the\n        // selection in the meantime.\n        display.selForContextMenu = cm.doc.sel;\n      }\n    }\n    function rehide() {\n      if (input.contextMenuPending != rehide) { return }\n      input.contextMenuPending = false;\n      input.wrapper.style.cssText = oldWrapperCSS;\n      te.style.cssText = oldCSS;\n      if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }\n\n      // Try to detect the user choosing select-all\n      if (te.selectionStart != null) {\n        if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }\n        var i = 0, poll = function () {\n          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&\n              te.selectionEnd > 0 && input.prevInput == \"\\u200b\") {\n            operation(cm, selectAll)(cm);\n          } else if (i++ < 10) {\n            display.detectingSelectAll = setTimeout(poll, 500);\n          } else {\n            display.selForContextMenu = null;\n            display.input.reset();\n          }\n        };\n        display.detectingSelectAll = setTimeout(poll, 200);\n      }\n    }\n\n    if (ie && ie_version >= 9) { prepareSelectAllHack(); }\n    if (captureRightClick) {\n      e_stop(e);\n      var mouseup = function () {\n        off(window, \"mouseup\", mouseup);\n        setTimeout(rehide, 20);\n      };\n      on(window, \"mouseup\", mouseup);\n    } else {\n      setTimeout(rehide, 50);\n    }\n  };\n\n  TextareaInput.prototype.readOnlyChanged = function (val) {\n    if (!val) { this.reset(); }\n    this.textarea.disabled = val == \"nocursor\";\n  };\n\n  TextareaInput.prototype.setUneditable = function () {};\n\n  TextareaInput.prototype.needsContentAttribute = false;\n\n  function fromTextArea(textarea, options) {\n    options = options ? copyObj(options) : {};\n    options.value = textarea.value;\n    if (!options.tabindex && textarea.tabIndex)\n      { options.tabindex = textarea.tabIndex; }\n    if (!options.placeholder && textarea.placeholder)\n      { options.placeholder = textarea.placeholder; }\n    // Set autofocus to true if this textarea is focused, or if it has\n    // autofocus and no other element is focused.\n    if (options.autofocus == null) {\n      var hasFocus = activeElt();\n      options.autofocus = hasFocus == textarea ||\n        textarea.getAttribute(\"autofocus\") != null && hasFocus == document.body;\n    }\n\n    function save() {textarea.value = cm.getValue();}\n\n    var realSubmit;\n    if (textarea.form) {\n      on(textarea.form, \"submit\", save);\n      // Deplorable hack to make the submit method do the right thing.\n      if (!options.leaveSubmitMethodAlone) {\n        var form = textarea.form;\n        realSubmit = form.submit;\n        try {\n          var wrappedSubmit = form.submit = function () {\n            save();\n            form.submit = realSubmit;\n            form.submit();\n            form.submit = wrappedSubmit;\n          };\n        } catch(e) {}\n      }\n    }\n\n    options.finishInit = function (cm) {\n      cm.save = save;\n      cm.getTextArea = function () { return textarea; };\n      cm.toTextArea = function () {\n        cm.toTextArea = isNaN; // Prevent this from being ran twice\n        save();\n        textarea.parentNode.removeChild(cm.getWrapperElement());\n        textarea.style.display = \"\";\n        if (textarea.form) {\n          off(textarea.form, \"submit\", save);\n          if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == \"function\")\n            { textarea.form.submit = realSubmit; }\n        }\n      };\n    };\n\n    textarea.style.display = \"none\";\n    var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },\n      options);\n    return cm\n  }\n\n  function addLegacyProps(CodeMirror) {\n    CodeMirror.off = off;\n    CodeMirror.on = on;\n    CodeMirror.wheelEventPixels = wheelEventPixels;\n    CodeMirror.Doc = Doc;\n    CodeMirror.splitLines = splitLinesAuto;\n    CodeMirror.countColumn = countColumn;\n    CodeMirror.findColumn = findColumn;\n    CodeMirror.isWordChar = isWordCharBasic;\n    CodeMirror.Pass = Pass;\n    CodeMirror.signal = signal;\n    CodeMirror.Line = Line;\n    CodeMirror.changeEnd = changeEnd;\n    CodeMirror.scrollbarModel = scrollbarModel;\n    CodeMirror.Pos = Pos;\n    CodeMirror.cmpPos = cmp;\n    CodeMirror.modes = modes;\n    CodeMirror.mimeModes = mimeModes;\n    CodeMirror.resolveMode = resolveMode;\n    CodeMirror.getMode = getMode;\n    CodeMirror.modeExtensions = modeExtensions;\n    CodeMirror.extendMode = extendMode;\n    CodeMirror.copyState = copyState;\n    CodeMirror.startState = startState;\n    CodeMirror.innerMode = innerMode;\n    CodeMirror.commands = commands;\n    CodeMirror.keyMap = keyMap;\n    CodeMirror.keyName = keyName;\n    CodeMirror.isModifierKey = isModifierKey;\n    CodeMirror.lookupKey = lookupKey;\n    CodeMirror.normalizeKeyMap = normalizeKeyMap;\n    CodeMirror.StringStream = StringStream;\n    CodeMirror.SharedTextMarker = SharedTextMarker;\n    CodeMirror.TextMarker = TextMarker;\n    CodeMirror.LineWidget = LineWidget;\n    CodeMirror.e_preventDefault = e_preventDefault;\n    CodeMirror.e_stopPropagation = e_stopPropagation;\n    CodeMirror.e_stop = e_stop;\n    CodeMirror.addClass = addClass;\n    CodeMirror.contains = contains;\n    CodeMirror.rmClass = rmClass;\n    CodeMirror.keyNames = keyNames;\n  }\n\n  // EDITOR CONSTRUCTOR\n\n  defineOptions(CodeMirror);\n\n  addEditorMethods(CodeMirror);\n\n  // Set up methods on CodeMirror's prototype to redirect to the editor's document.\n  var dontDelegate = \"iter insert remove copy getEditor constructor\".split(\" \");\n  for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)\n    { CodeMirror.prototype[prop] = (function(method) {\n      return function() {return method.apply(this.doc, arguments)}\n    })(Doc.prototype[prop]); } }\n\n  eventMixin(Doc);\n  CodeMirror.inputStyles = {\"textarea\": TextareaInput, \"contenteditable\": ContentEditableInput};\n\n  // Extra arguments are stored as the mode's dependencies, which is\n  // used by (legacy) mechanisms like loadmode.js to automatically\n  // load a mode. (Preferred mechanism is the require/define calls.)\n  CodeMirror.defineMode = function(name/*, mode, …*/) {\n    if (!CodeMirror.defaults.mode && name != \"null\") { CodeMirror.defaults.mode = name; }\n    defineMode.apply(this, arguments);\n  };\n\n  CodeMirror.defineMIME = defineMIME;\n\n  // Minimal default mode.\n  CodeMirror.defineMode(\"null\", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });\n  CodeMirror.defineMIME(\"text/plain\", \"null\");\n\n  // EXTENSIONS\n\n  CodeMirror.defineExtension = function (name, func) {\n    CodeMirror.prototype[name] = func;\n  };\n  CodeMirror.defineDocExtension = function (name, func) {\n    Doc.prototype[name] = func;\n  };\n\n  CodeMirror.fromTextArea = fromTextArea;\n\n  addLegacyProps(CodeMirror);\n\n  CodeMirror.version = \"5.52.0\";\n\n  return CodeMirror;\n\n})));\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"), require(\"../xml/xml\"), require(\"../meta\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\", \"../xml/xml\", \"../meta\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nCodeMirror.defineMode(\"markdown\", function(cmCfg, modeCfg) {\n\n  var htmlMode = CodeMirror.getMode(cmCfg, \"text/html\");\n  var htmlModeMissing = htmlMode.name == \"null\"\n\n  function getMode(name) {\n    if (CodeMirror.findModeByName) {\n      var found = CodeMirror.findModeByName(name);\n      if (found) name = found.mime || found.mimes[0];\n    }\n    var mode = CodeMirror.getMode(cmCfg, name);\n    return mode.name == \"null\" ? null : mode;\n  }\n\n  // Should characters that affect highlighting be highlighted separate?\n  // Does not include characters that will be output (such as `1.` and `-` for lists)\n  if (modeCfg.highlightFormatting === undefined)\n    modeCfg.highlightFormatting = false;\n\n  // Maximum number of nested blockquotes. Set to 0 for infinite nesting.\n  // Excess `>` will emit `error` token.\n  if (modeCfg.maxBlockquoteDepth === undefined)\n    modeCfg.maxBlockquoteDepth = 0;\n\n  // Turn on task lists? (\"- [ ] \" and \"- [x] \")\n  if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;\n\n  // Turn on strikethrough syntax\n  if (modeCfg.strikethrough === undefined)\n    modeCfg.strikethrough = false;\n\n  if (modeCfg.emoji === undefined)\n    modeCfg.emoji = false;\n\n  if (modeCfg.fencedCodeBlockHighlighting === undefined)\n    modeCfg.fencedCodeBlockHighlighting = true;\n\n  if (modeCfg.xml === undefined)\n    modeCfg.xml = true;\n\n  // Allow token types to be overridden by user-provided token types.\n  if (modeCfg.tokenTypeOverrides === undefined)\n    modeCfg.tokenTypeOverrides = {};\n\n  var tokenTypes = {\n    header: \"header\",\n    code: \"comment\",\n    quote: \"quote\",\n    list1: \"variable-2\",\n    list2: \"variable-3\",\n    list3: \"keyword\",\n    hr: \"hr\",\n    image: \"image\",\n    imageAltText: \"image-alt-text\",\n    imageMarker: \"image-marker\",\n    formatting: \"formatting\",\n    linkInline: \"link\",\n    linkEmail: \"link\",\n    linkText: \"link\",\n    linkHref: \"string\",\n    em: \"em\",\n    strong: \"strong\",\n    strikethrough: \"strikethrough\",\n    emoji: \"builtin\"\n  };\n\n  for (var tokenType in tokenTypes) {\n    if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {\n      tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];\n    }\n  }\n\n  var hrRE = /^([*\\-_])(?:\\s*\\1){2,}\\s*$/\n  ,   listRE = /^(?:[*\\-+]|^[0-9]+([.)]))\\s+/\n  ,   taskListRE = /^\\[(x| )\\](?=\\s)/i // Must follow listRE\n  ,   atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/\n  ,   setextHeaderRE = /^ *(?:\\={1,}|-{1,})\\s*$/\n  ,   textRE = /^[^#!\\[\\]*_\\\\<>` \"'(~:]+/\n  ,   fencedCodeRE = /^(~~~+|```+)[ \\t]*([\\w+#-]*)[^\\n`]*$/\n  ,   linkDefRE = /^\\s*\\[[^\\]]+?\\]:.*$/ // naive link-definition\n  ,   punctuation = /[!\"#$%&'()*+,\\-.\\/:;<=>?@\\[\\\\\\]^_`{|}~\\xA1\\xA7\\xAB\\xB6\\xB7\\xBB\\xBF\\u037E\\u0387\\u055A-\\u055F\\u0589\\u058A\\u05BE\\u05C0\\u05C3\\u05C6\\u05F3\\u05F4\\u0609\\u060A\\u060C\\u060D\\u061B\\u061E\\u061F\\u066A-\\u066D\\u06D4\\u0700-\\u070D\\u07F7-\\u07F9\\u0830-\\u083E\\u085E\\u0964\\u0965\\u0970\\u0AF0\\u0DF4\\u0E4F\\u0E5A\\u0E5B\\u0F04-\\u0F12\\u0F14\\u0F3A-\\u0F3D\\u0F85\\u0FD0-\\u0FD4\\u0FD9\\u0FDA\\u104A-\\u104F\\u10FB\\u1360-\\u1368\\u1400\\u166D\\u166E\\u169B\\u169C\\u16EB-\\u16ED\\u1735\\u1736\\u17D4-\\u17D6\\u17D8-\\u17DA\\u1800-\\u180A\\u1944\\u1945\\u1A1E\\u1A1F\\u1AA0-\\u1AA6\\u1AA8-\\u1AAD\\u1B5A-\\u1B60\\u1BFC-\\u1BFF\\u1C3B-\\u1C3F\\u1C7E\\u1C7F\\u1CC0-\\u1CC7\\u1CD3\\u2010-\\u2027\\u2030-\\u2043\\u2045-\\u2051\\u2053-\\u205E\\u207D\\u207E\\u208D\\u208E\\u2308-\\u230B\\u2329\\u232A\\u2768-\\u2775\\u27C5\\u27C6\\u27E6-\\u27EF\\u2983-\\u2998\\u29D8-\\u29DB\\u29FC\\u29FD\\u2CF9-\\u2CFC\\u2CFE\\u2CFF\\u2D70\\u2E00-\\u2E2E\\u2E30-\\u2E42\\u3001-\\u3003\\u3008-\\u3011\\u3014-\\u301F\\u3030\\u303D\\u30A0\\u30FB\\uA4FE\\uA4FF\\uA60D-\\uA60F\\uA673\\uA67E\\uA6F2-\\uA6F7\\uA874-\\uA877\\uA8CE\\uA8CF\\uA8F8-\\uA8FA\\uA8FC\\uA92E\\uA92F\\uA95F\\uA9C1-\\uA9CD\\uA9DE\\uA9DF\\uAA5C-\\uAA5F\\uAADE\\uAADF\\uAAF0\\uAAF1\\uABEB\\uFD3E\\uFD3F\\uFE10-\\uFE19\\uFE30-\\uFE52\\uFE54-\\uFE61\\uFE63\\uFE68\\uFE6A\\uFE6B\\uFF01-\\uFF03\\uFF05-\\uFF0A\\uFF0C-\\uFF0F\\uFF1A\\uFF1B\\uFF1F\\uFF20\\uFF3B-\\uFF3D\\uFF3F\\uFF5B\\uFF5D\\uFF5F-\\uFF65]|\\uD800[\\uDD00-\\uDD02\\uDF9F\\uDFD0]|\\uD801\\uDD6F|\\uD802[\\uDC57\\uDD1F\\uDD3F\\uDE50-\\uDE58\\uDE7F\\uDEF0-\\uDEF6\\uDF39-\\uDF3F\\uDF99-\\uDF9C]|\\uD804[\\uDC47-\\uDC4D\\uDCBB\\uDCBC\\uDCBE-\\uDCC1\\uDD40-\\uDD43\\uDD74\\uDD75\\uDDC5-\\uDDC9\\uDDCD\\uDDDB\\uDDDD-\\uDDDF\\uDE38-\\uDE3D\\uDEA9]|\\uD805[\\uDCC6\\uDDC1-\\uDDD7\\uDE41-\\uDE43\\uDF3C-\\uDF3E]|\\uD809[\\uDC70-\\uDC74]|\\uD81A[\\uDE6E\\uDE6F\\uDEF5\\uDF37-\\uDF3B\\uDF44]|\\uD82F\\uDC9F|\\uD836[\\uDE87-\\uDE8B]/\n  ,   expandedTab = \"    \" // CommonMark specifies tab as 4 spaces\n\n  function switchInline(stream, state, f) {\n    state.f = state.inline = f;\n    return f(stream, state);\n  }\n\n  function switchBlock(stream, state, f) {\n    state.f = state.block = f;\n    return f(stream, state);\n  }\n\n  function lineIsEmpty(line) {\n    return !line || !/\\S/.test(line.string)\n  }\n\n  // Blocks\n\n  function blankLine(state) {\n    // Reset linkTitle state\n    state.linkTitle = false;\n    state.linkHref = false;\n    state.linkText = false;\n    // Reset EM state\n    state.em = false;\n    // Reset STRONG state\n    state.strong = false;\n    // Reset strikethrough state\n    state.strikethrough = false;\n    // Reset state.quote\n    state.quote = 0;\n    // Reset state.indentedCode\n    state.indentedCode = false;\n    if (state.f == htmlBlock) {\n      var exit = htmlModeMissing\n      if (!exit) {\n        var inner = CodeMirror.innerMode(htmlMode, state.htmlState)\n        exit = inner.mode.name == \"xml\" && inner.state.tagStart === null &&\n          (!inner.state.context && inner.state.tokenize.isInText)\n      }\n      if (exit) {\n        state.f = inlineNormal;\n        state.block = blockNormal;\n        state.htmlState = null;\n      }\n    }\n    // Reset state.trailingSpace\n    state.trailingSpace = 0;\n    state.trailingSpaceNewLine = false;\n    // Mark this line as blank\n    state.prevLine = state.thisLine\n    state.thisLine = {stream: null}\n    return null;\n  }\n\n  function blockNormal(stream, state) {\n    var firstTokenOnLine = stream.column() === state.indentation;\n    var prevLineLineIsEmpty = lineIsEmpty(state.prevLine.stream);\n    var prevLineIsIndentedCode = state.indentedCode;\n    var prevLineIsHr = state.prevLine.hr;\n    var prevLineIsList = state.list !== false;\n    var maxNonCodeIndentation = (state.listStack[state.listStack.length - 1] || 0) + 3;\n\n    state.indentedCode = false;\n\n    var lineIndentation = state.indentation;\n    // compute once per line (on first token)\n    if (state.indentationDiff === null) {\n      state.indentationDiff = state.indentation;\n      if (prevLineIsList) {\n        state.list = null;\n        // While this list item's marker's indentation is less than the deepest\n        //  list item's content's indentation,pop the deepest list item\n        //  indentation off the stack, and update block indentation state\n        while (lineIndentation < state.listStack[state.listStack.length - 1]) {\n          state.listStack.pop();\n          if (state.listStack.length) {\n            state.indentation = state.listStack[state.listStack.length - 1];\n          // less than the first list's indent -> the line is no longer a list\n          } else {\n            state.list = false;\n          }\n        }\n        if (state.list !== false) {\n          state.indentationDiff = lineIndentation - state.listStack[state.listStack.length - 1]\n        }\n      }\n    }\n\n    // not comprehensive (currently only for setext detection purposes)\n    var allowsInlineContinuation = (\n        !prevLineLineIsEmpty && !prevLineIsHr && !state.prevLine.header &&\n        (!prevLineIsList || !prevLineIsIndentedCode) &&\n        !state.prevLine.fencedCodeEnd\n    );\n\n    var isHr = (state.list === false || prevLineIsHr || prevLineLineIsEmpty) &&\n      state.indentation <= maxNonCodeIndentation && stream.match(hrRE);\n\n    var match = null;\n    if (state.indentationDiff >= 4 && (prevLineIsIndentedCode || state.prevLine.fencedCodeEnd ||\n         state.prevLine.header || prevLineLineIsEmpty)) {\n      stream.skipToEnd();\n      state.indentedCode = true;\n      return tokenTypes.code;\n    } else if (stream.eatSpace()) {\n      return null;\n    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(atxHeaderRE)) && match[1].length <= 6) {\n      state.quote = 0;\n      state.header = match[1].length;\n      state.thisLine.header = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      state.f = state.inline;\n      return getType(state);\n    } else if (state.indentation <= maxNonCodeIndentation && stream.eat('>')) {\n      state.quote = firstTokenOnLine ? 1 : state.quote + 1;\n      if (modeCfg.highlightFormatting) state.formatting = \"quote\";\n      stream.eatSpace();\n      return getType(state);\n    } else if (!isHr && !state.setext && firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(listRE))) {\n      var listType = match[1] ? \"ol\" : \"ul\";\n\n      state.indentation = lineIndentation + stream.current().length;\n      state.list = true;\n      state.quote = 0;\n\n      // Add this list item's content's indentation to the stack\n      state.listStack.push(state.indentation);\n      // Reset inline styles which shouldn't propagate aross list items\n      state.em = false;\n      state.strong = false;\n      state.code = false;\n      state.strikethrough = false;\n\n      if (modeCfg.taskLists && stream.match(taskListRE, false)) {\n        state.taskList = true;\n      }\n      state.f = state.inline;\n      if (modeCfg.highlightFormatting) state.formatting = [\"list\", \"list-\" + listType];\n      return getType(state);\n    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(fencedCodeRE, true))) {\n      state.quote = 0;\n      state.fencedEndRE = new RegExp(match[1] + \"+ *$\");\n      // try switching mode\n      state.localMode = modeCfg.fencedCodeBlockHighlighting && getMode(match[2]);\n      if (state.localMode) state.localState = CodeMirror.startState(state.localMode);\n      state.f = state.block = local;\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\n      state.code = -1\n      return getType(state);\n    // SETEXT has lowest block-scope precedence after HR, so check it after\n    //  the others (code, blockquote, list...)\n    } else if (\n      // if setext set, indicates line after ---/===\n      state.setext || (\n        // line before ---/===\n        (!allowsInlineContinuation || !prevLineIsList) && !state.quote && state.list === false &&\n        !state.code && !isHr && !linkDefRE.test(stream.string) &&\n        (match = stream.lookAhead(1)) && (match = match.match(setextHeaderRE))\n      )\n    ) {\n      if ( !state.setext ) {\n        state.header = match[0].charAt(0) == '=' ? 1 : 2;\n        state.setext = state.header;\n      } else {\n        state.header = state.setext;\n        // has no effect on type so we can reset it now\n        state.setext = 0;\n        stream.skipToEnd();\n        if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      }\n      state.thisLine.header = true;\n      state.f = state.inline;\n      return getType(state);\n    } else if (isHr) {\n      stream.skipToEnd();\n      state.hr = true;\n      state.thisLine.hr = true;\n      return tokenTypes.hr;\n    } else if (stream.peek() === '[') {\n      return switchInline(stream, state, footnoteLink);\n    }\n\n    return switchInline(stream, state, state.inline);\n  }\n\n  function htmlBlock(stream, state) {\n    var style = htmlMode.token(stream, state.htmlState);\n    if (!htmlModeMissing) {\n      var inner = CodeMirror.innerMode(htmlMode, state.htmlState)\n      if ((inner.mode.name == \"xml\" && inner.state.tagStart === null &&\n           (!inner.state.context && inner.state.tokenize.isInText)) ||\n          (state.md_inside && stream.current().indexOf(\">\") > -1)) {\n        state.f = inlineNormal;\n        state.block = blockNormal;\n        state.htmlState = null;\n      }\n    }\n    return style;\n  }\n\n  function local(stream, state) {\n    var currListInd = state.listStack[state.listStack.length - 1] || 0;\n    var hasExitedList = state.indentation < currListInd;\n    var maxFencedEndInd = currListInd + 3;\n    if (state.fencedEndRE && state.indentation <= maxFencedEndInd && (hasExitedList || stream.match(state.fencedEndRE))) {\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\n      var returnType;\n      if (!hasExitedList) returnType = getType(state)\n      state.localMode = state.localState = null;\n      state.block = blockNormal;\n      state.f = inlineNormal;\n      state.fencedEndRE = null;\n      state.code = 0\n      state.thisLine.fencedCodeEnd = true;\n      if (hasExitedList) return switchBlock(stream, state, state.block);\n      return returnType;\n    } else if (state.localMode) {\n      return state.localMode.token(stream, state.localState);\n    } else {\n      stream.skipToEnd();\n      return tokenTypes.code;\n    }\n  }\n\n  // Inline\n  function getType(state) {\n    var styles = [];\n\n    if (state.formatting) {\n      styles.push(tokenTypes.formatting);\n\n      if (typeof state.formatting === \"string\") state.formatting = [state.formatting];\n\n      for (var i = 0; i < state.formatting.length; i++) {\n        styles.push(tokenTypes.formatting + \"-\" + state.formatting[i]);\n\n        if (state.formatting[i] === \"header\") {\n          styles.push(tokenTypes.formatting + \"-\" + state.formatting[i] + \"-\" + state.header);\n        }\n\n        // Add `formatting-quote` and `formatting-quote-#` for blockquotes\n        // Add `error` instead if the maximum blockquote nesting depth is passed\n        if (state.formatting[i] === \"quote\") {\n          if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\n            styles.push(tokenTypes.formatting + \"-\" + state.formatting[i] + \"-\" + state.quote);\n          } else {\n            styles.push(\"error\");\n          }\n        }\n      }\n    }\n\n    if (state.taskOpen) {\n      styles.push(\"meta\");\n      return styles.length ? styles.join(' ') : null;\n    }\n    if (state.taskClosed) {\n      styles.push(\"property\");\n      return styles.length ? styles.join(' ') : null;\n    }\n\n    if (state.linkHref) {\n      styles.push(tokenTypes.linkHref, \"url\");\n    } else { // Only apply inline styles to non-url text\n      if (state.strong) { styles.push(tokenTypes.strong); }\n      if (state.em) { styles.push(tokenTypes.em); }\n      if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }\n      if (state.emoji) { styles.push(tokenTypes.emoji); }\n      if (state.linkText) { styles.push(tokenTypes.linkText); }\n      if (state.code) { styles.push(tokenTypes.code); }\n      if (state.image) { styles.push(tokenTypes.image); }\n      if (state.imageAltText) { styles.push(tokenTypes.imageAltText, \"link\"); }\n      if (state.imageMarker) { styles.push(tokenTypes.imageMarker); }\n    }\n\n    if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + \"-\" + state.header); }\n\n    if (state.quote) {\n      styles.push(tokenTypes.quote);\n\n      // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth\n      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\n        styles.push(tokenTypes.quote + \"-\" + state.quote);\n      } else {\n        styles.push(tokenTypes.quote + \"-\" + modeCfg.maxBlockquoteDepth);\n      }\n    }\n\n    if (state.list !== false) {\n      var listMod = (state.listStack.length - 1) % 3;\n      if (!listMod) {\n        styles.push(tokenTypes.list1);\n      } else if (listMod === 1) {\n        styles.push(tokenTypes.list2);\n      } else {\n        styles.push(tokenTypes.list3);\n      }\n    }\n\n    if (state.trailingSpaceNewLine) {\n      styles.push(\"trailing-space-new-line\");\n    } else if (state.trailingSpace) {\n      styles.push(\"trailing-space-\" + (state.trailingSpace % 2 ? \"a\" : \"b\"));\n    }\n\n    return styles.length ? styles.join(' ') : null;\n  }\n\n  function handleText(stream, state) {\n    if (stream.match(textRE, true)) {\n      return getType(state);\n    }\n    return undefined;\n  }\n\n  function inlineNormal(stream, state) {\n    var style = state.text(stream, state);\n    if (typeof style !== 'undefined')\n      return style;\n\n    if (state.list) { // List marker (*, +, -, 1., etc)\n      state.list = null;\n      return getType(state);\n    }\n\n    if (state.taskList) {\n      var taskOpen = stream.match(taskListRE, true)[1] === \" \";\n      if (taskOpen) state.taskOpen = true;\n      else state.taskClosed = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"task\";\n      state.taskList = false;\n      return getType(state);\n    }\n\n    state.taskOpen = false;\n    state.taskClosed = false;\n\n    if (state.header && stream.match(/^#+$/, true)) {\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      return getType(state);\n    }\n\n    var ch = stream.next();\n\n    // Matches link titles present on next line\n    if (state.linkTitle) {\n      state.linkTitle = false;\n      var matchCh = ch;\n      if (ch === '(') {\n        matchCh = ')';\n      }\n      matchCh = (matchCh+'').replace(/([.?*+^\\[\\]\\\\(){}|-])/g, \"\\\\$1\");\n      var regex = '^\\\\s*(?:[^' + matchCh + '\\\\\\\\]+|\\\\\\\\\\\\\\\\|\\\\\\\\.)' + matchCh;\n      if (stream.match(new RegExp(regex), true)) {\n        return tokenTypes.linkHref;\n      }\n    }\n\n    // If this block is changed, it may need to be updated in GFM mode\n    if (ch === '`') {\n      var previousFormatting = state.formatting;\n      if (modeCfg.highlightFormatting) state.formatting = \"code\";\n      stream.eatWhile('`');\n      var count = stream.current().length\n      if (state.code == 0 && (!state.quote || count == 1)) {\n        state.code = count\n        return getType(state)\n      } else if (count == state.code) { // Must be exact\n        var t = getType(state)\n        state.code = 0\n        return t\n      } else {\n        state.formatting = previousFormatting\n        return getType(state)\n      }\n    } else if (state.code) {\n      return getType(state);\n    }\n\n    if (ch === '\\\\') {\n      stream.next();\n      if (modeCfg.highlightFormatting) {\n        var type = getType(state);\n        var formattingEscape = tokenTypes.formatting + \"-escape\";\n        return type ? type + \" \" + formattingEscape : formattingEscape;\n      }\n    }\n\n    if (ch === '!' && stream.match(/\\[[^\\]]*\\] ?(?:\\(|\\[)/, false)) {\n      state.imageMarker = true;\n      state.image = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      return getType(state);\n    }\n\n    if (ch === '[' && state.imageMarker && stream.match(/[^\\]]*\\](\\(.*?\\)| ?\\[.*?\\])/, false)) {\n      state.imageMarker = false;\n      state.imageAltText = true\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      return getType(state);\n    }\n\n    if (ch === ']' && state.imageAltText) {\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      var type = getType(state);\n      state.imageAltText = false;\n      state.image = false;\n      state.inline = state.f = linkHref;\n      return type;\n    }\n\n    if (ch === '[' && !state.image) {\n      if (state.linkText && stream.match(/^.*?\\]/)) return getType(state)\n      state.linkText = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      return getType(state);\n    }\n\n    if (ch === ']' && state.linkText) {\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      state.linkText = false;\n      state.inline = state.f = stream.match(/\\(.*?\\)| ?\\[.*?\\]/, false) ? linkHref : inlineNormal\n      return type;\n    }\n\n    if (ch === '<' && stream.match(/^(https?|ftps?):\\/\\/(?:[^\\\\>]|\\\\.)+>/, false)) {\n      state.f = state.inline = linkInline;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkInline;\n    }\n\n    if (ch === '<' && stream.match(/^[^> \\\\]+@(?:[^\\\\>]|\\\\.)+>/, false)) {\n      state.f = state.inline = linkInline;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkEmail;\n    }\n\n    if (modeCfg.xml && ch === '<' && stream.match(/^(!--|\\?|!\\[CDATA\\[|[a-z][a-z0-9-]*(?:\\s+[a-z_:.\\-]+(?:\\s*=\\s*[^>]+)?)*\\s*(?:>|$))/i, false)) {\n      var end = stream.string.indexOf(\">\", stream.pos);\n      if (end != -1) {\n        var atts = stream.string.substring(stream.start, end);\n        if (/markdown\\s*=\\s*('|\"){0,1}1('|\"){0,1}/.test(atts)) state.md_inside = true;\n      }\n      stream.backUp(1);\n      state.htmlState = CodeMirror.startState(htmlMode);\n      return switchBlock(stream, state, htmlBlock);\n    }\n\n    if (modeCfg.xml && ch === '<' && stream.match(/^\\/\\w*?>/)) {\n      state.md_inside = false;\n      return \"tag\";\n    } else if (ch === \"*\" || ch === \"_\") {\n      var len = 1, before = stream.pos == 1 ? \" \" : stream.string.charAt(stream.pos - 2)\n      while (len < 3 && stream.eat(ch)) len++\n      var after = stream.peek() || \" \"\n      // See http://spec.commonmark.org/0.27/#emphasis-and-strong-emphasis\n      var leftFlanking = !/\\s/.test(after) && (!punctuation.test(after) || /\\s/.test(before) || punctuation.test(before))\n      var rightFlanking = !/\\s/.test(before) && (!punctuation.test(before) || /\\s/.test(after) || punctuation.test(after))\n      var setEm = null, setStrong = null\n      if (len % 2) { // Em\n        if (!state.em && leftFlanking && (ch === \"*\" || !rightFlanking || punctuation.test(before)))\n          setEm = true\n        else if (state.em == ch && rightFlanking && (ch === \"*\" || !leftFlanking || punctuation.test(after)))\n          setEm = false\n      }\n      if (len > 1) { // Strong\n        if (!state.strong && leftFlanking && (ch === \"*\" || !rightFlanking || punctuation.test(before)))\n          setStrong = true\n        else if (state.strong == ch && rightFlanking && (ch === \"*\" || !leftFlanking || punctuation.test(after)))\n          setStrong = false\n      }\n      if (setStrong != null || setEm != null) {\n        if (modeCfg.highlightFormatting) state.formatting = setEm == null ? \"strong\" : setStrong == null ? \"em\" : \"strong em\"\n        if (setEm === true) state.em = ch\n        if (setStrong === true) state.strong = ch\n        var t = getType(state)\n        if (setEm === false) state.em = false\n        if (setStrong === false) state.strong = false\n        return t\n      }\n    } else if (ch === ' ') {\n      if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces\n        if (stream.peek() === ' ') { // Surrounded by spaces, ignore\n          return getType(state);\n        } else { // Not surrounded by spaces, back up pointer\n          stream.backUp(1);\n        }\n      }\n    }\n\n    if (modeCfg.strikethrough) {\n      if (ch === '~' && stream.eatWhile(ch)) {\n        if (state.strikethrough) {// Remove strikethrough\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\n          var t = getType(state);\n          state.strikethrough = false;\n          return t;\n        } else if (stream.match(/^[^\\s]/, false)) {// Add strikethrough\n          state.strikethrough = true;\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\n          return getType(state);\n        }\n      } else if (ch === ' ') {\n        if (stream.match(/^~~/, true)) { // Probably surrounded by space\n          if (stream.peek() === ' ') { // Surrounded by spaces, ignore\n            return getType(state);\n          } else { // Not surrounded by spaces, back up pointer\n            stream.backUp(2);\n          }\n        }\n      }\n    }\n\n    if (modeCfg.emoji && ch === \":\" && stream.match(/^(?:[a-z_\\d+][a-z_\\d+-]*|\\-[a-z_\\d+][a-z_\\d+-]*):/)) {\n      state.emoji = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"emoji\";\n      var retType = getType(state);\n      state.emoji = false;\n      return retType;\n    }\n\n    if (ch === ' ') {\n      if (stream.match(/^ +$/, false)) {\n        state.trailingSpace++;\n      } else if (state.trailingSpace) {\n        state.trailingSpaceNewLine = true;\n      }\n    }\n\n    return getType(state);\n  }\n\n  function linkInline(stream, state) {\n    var ch = stream.next();\n\n    if (ch === \">\") {\n      state.f = state.inline = inlineNormal;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkInline;\n    }\n\n    stream.match(/^[^>]+/, true);\n\n    return tokenTypes.linkInline;\n  }\n\n  function linkHref(stream, state) {\n    // Check if space, and return NULL if so (to avoid marking the space)\n    if(stream.eatSpace()){\n      return null;\n    }\n    var ch = stream.next();\n    if (ch === '(' || ch === '[') {\n      state.f = state.inline = getLinkHrefInside(ch === \"(\" ? \")\" : \"]\");\n      if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\n      state.linkHref = true;\n      return getType(state);\n    }\n    return 'error';\n  }\n\n  var linkRE = {\n    \")\": /^(?:[^\\\\\\(\\)]|\\\\.|\\((?:[^\\\\\\(\\)]|\\\\.)*\\))*?(?=\\))/,\n    \"]\": /^(?:[^\\\\\\[\\]]|\\\\.|\\[(?:[^\\\\\\[\\]]|\\\\.)*\\])*?(?=\\])/\n  }\n\n  function getLinkHrefInside(endChar) {\n    return function(stream, state) {\n      var ch = stream.next();\n\n      if (ch === endChar) {\n        state.f = state.inline = inlineNormal;\n        if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\n        var returnState = getType(state);\n        state.linkHref = false;\n        return returnState;\n      }\n\n      stream.match(linkRE[endChar])\n      state.linkHref = true;\n      return getType(state);\n    };\n  }\n\n  function footnoteLink(stream, state) {\n    if (stream.match(/^([^\\]\\\\]|\\\\.)*\\]:/, false)) {\n      state.f = footnoteLinkInside;\n      stream.next(); // Consume [\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      state.linkText = true;\n      return getType(state);\n    }\n    return switchInline(stream, state, inlineNormal);\n  }\n\n  function footnoteLinkInside(stream, state) {\n    if (stream.match(/^\\]:/, true)) {\n      state.f = state.inline = footnoteUrl;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var returnType = getType(state);\n      state.linkText = false;\n      return returnType;\n    }\n\n    stream.match(/^([^\\]\\\\]|\\\\.)+/, true);\n\n    return tokenTypes.linkText;\n  }\n\n  function footnoteUrl(stream, state) {\n    // Check if space, and return NULL if so (to avoid marking the space)\n    if(stream.eatSpace()){\n      return null;\n    }\n    // Match URL\n    stream.match(/^[^\\s]+/, true);\n    // Check for link title\n    if (stream.peek() === undefined) { // End of line, set flag to check next line\n      state.linkTitle = true;\n    } else { // More content on line, check if link title\n      stream.match(/^(?:\\s+(?:\"(?:[^\"\\\\]|\\\\\\\\|\\\\.)+\"|'(?:[^'\\\\]|\\\\\\\\|\\\\.)+'|\\((?:[^)\\\\]|\\\\\\\\|\\\\.)+\\)))?/, true);\n    }\n    state.f = state.inline = inlineNormal;\n    return tokenTypes.linkHref + \" url\";\n  }\n\n  var mode = {\n    startState: function() {\n      return {\n        f: blockNormal,\n\n        prevLine: {stream: null},\n        thisLine: {stream: null},\n\n        block: blockNormal,\n        htmlState: null,\n        indentation: 0,\n\n        inline: inlineNormal,\n        text: handleText,\n\n        formatting: false,\n        linkText: false,\n        linkHref: false,\n        linkTitle: false,\n        code: 0,\n        em: false,\n        strong: false,\n        header: 0,\n        setext: 0,\n        hr: false,\n        taskList: false,\n        list: false,\n        listStack: [],\n        quote: 0,\n        trailingSpace: 0,\n        trailingSpaceNewLine: false,\n        strikethrough: false,\n        emoji: false,\n        fencedEndRE: null\n      };\n    },\n\n    copyState: function(s) {\n      return {\n        f: s.f,\n\n        prevLine: s.prevLine,\n        thisLine: s.thisLine,\n\n        block: s.block,\n        htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),\n        indentation: s.indentation,\n\n        localMode: s.localMode,\n        localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,\n\n        inline: s.inline,\n        text: s.text,\n        formatting: false,\n        linkText: s.linkText,\n        linkTitle: s.linkTitle,\n        linkHref: s.linkHref,\n        code: s.code,\n        em: s.em,\n        strong: s.strong,\n        strikethrough: s.strikethrough,\n        emoji: s.emoji,\n        header: s.header,\n        setext: s.setext,\n        hr: s.hr,\n        taskList: s.taskList,\n        list: s.list,\n        listStack: s.listStack.slice(0),\n        quote: s.quote,\n        indentedCode: s.indentedCode,\n        trailingSpace: s.trailingSpace,\n        trailingSpaceNewLine: s.trailingSpaceNewLine,\n        md_inside: s.md_inside,\n        fencedEndRE: s.fencedEndRE\n      };\n    },\n\n    token: function(stream, state) {\n\n      // Reset state.formatting\n      state.formatting = false;\n\n      if (stream != state.thisLine.stream) {\n        state.header = 0;\n        state.hr = false;\n\n        if (stream.match(/^\\s*$/, true)) {\n          blankLine(state);\n          return null;\n        }\n\n        state.prevLine = state.thisLine\n        state.thisLine = {stream: stream}\n\n        // Reset state.taskList\n        state.taskList = false;\n\n        // Reset state.trailingSpace\n        state.trailingSpace = 0;\n        state.trailingSpaceNewLine = false;\n\n        if (!state.localState) {\n          state.f = state.block;\n          if (state.f != htmlBlock) {\n            var indentation = stream.match(/^\\s*/, true)[0].replace(/\\t/g, expandedTab).length;\n            state.indentation = indentation;\n            state.indentationDiff = null;\n            if (indentation > 0) return null;\n          }\n        }\n      }\n      return state.f(stream, state);\n    },\n\n    innerMode: function(state) {\n      if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};\n      if (state.localState) return {state: state.localState, mode: state.localMode};\n      return {state: state, mode: mode};\n    },\n\n    indent: function(state, textAfter, line) {\n      if (state.block == htmlBlock && htmlMode.indent) return htmlMode.indent(state.htmlState, textAfter, line)\n      if (state.localState && state.localMode.indent) return state.localMode.indent(state.localState, textAfter, line)\n      return CodeMirror.Pass\n    },\n\n    blankLine: blankLine,\n\n    getType: getType,\n\n    blockCommentStart: \"<!--\",\n    blockCommentEnd: \"-->\",\n    closeBrackets: \"()[]{}''\\\"\\\"``\",\n    fold: \"markdown\"\n  };\n  return mode;\n}, \"xml\");\n\nCodeMirror.defineMIME(\"text/markdown\", \"markdown\");\n\nCodeMirror.defineMIME(\"text/x-markdown\", \"markdown\");\n\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n\n  CodeMirror.modeInfo = [\n    {name: \"APL\", mime: \"text/apl\", mode: \"apl\", ext: [\"dyalog\", \"apl\"]},\n    {name: \"PGP\", mimes: [\"application/pgp\", \"application/pgp-encrypted\", \"application/pgp-keys\", \"application/pgp-signature\"], mode: \"asciiarmor\", ext: [\"asc\", \"pgp\", \"sig\"]},\n    {name: \"ASN.1\", mime: \"text/x-ttcn-asn\", mode: \"asn.1\", ext: [\"asn\", \"asn1\"]},\n    {name: \"Asterisk\", mime: \"text/x-asterisk\", mode: \"asterisk\", file: /^extensions\\.conf$/i},\n    {name: \"Brainfuck\", mime: \"text/x-brainfuck\", mode: \"brainfuck\", ext: [\"b\", \"bf\"]},\n    {name: \"C\", mime: \"text/x-csrc\", mode: \"clike\", ext: [\"c\", \"h\", \"ino\"]},\n    {name: \"C++\", mime: \"text/x-c++src\", mode: \"clike\", ext: [\"cpp\", \"c++\", \"cc\", \"cxx\", \"hpp\", \"h++\", \"hh\", \"hxx\"], alias: [\"cpp\"]},\n    {name: \"Cobol\", mime: \"text/x-cobol\", mode: \"cobol\", ext: [\"cob\", \"cpy\"]},\n    {name: \"C#\", mime: \"text/x-csharp\", mode: \"clike\", ext: [\"cs\"], alias: [\"csharp\", \"cs\"]},\n    {name: \"Clojure\", mime: \"text/x-clojure\", mode: \"clojure\", ext: [\"clj\", \"cljc\", \"cljx\"]},\n    {name: \"ClojureScript\", mime: \"text/x-clojurescript\", mode: \"clojure\", ext: [\"cljs\"]},\n    {name: \"Closure Stylesheets (GSS)\", mime: \"text/x-gss\", mode: \"css\", ext: [\"gss\"]},\n    {name: \"CMake\", mime: \"text/x-cmake\", mode: \"cmake\", ext: [\"cmake\", \"cmake.in\"], file: /^CMakeLists.txt$/},\n    {name: \"CoffeeScript\", mimes: [\"application/vnd.coffeescript\", \"text/coffeescript\", \"text/x-coffeescript\"], mode: \"coffeescript\", ext: [\"coffee\"], alias: [\"coffee\", \"coffee-script\"]},\n    {name: \"Common Lisp\", mime: \"text/x-common-lisp\", mode: \"commonlisp\", ext: [\"cl\", \"lisp\", \"el\"], alias: [\"lisp\"]},\n    {name: \"Cypher\", mime: \"application/x-cypher-query\", mode: \"cypher\", ext: [\"cyp\", \"cypher\"]},\n    {name: \"Cython\", mime: \"text/x-cython\", mode: \"python\", ext: [\"pyx\", \"pxd\", \"pxi\"]},\n    {name: \"Crystal\", mime: \"text/x-crystal\", mode: \"crystal\", ext: [\"cr\"]},\n    {name: \"CSS\", mime: \"text/css\", mode: \"css\", ext: [\"css\"]},\n    {name: \"CQL\", mime: \"text/x-cassandra\", mode: \"sql\", ext: [\"cql\"]},\n    {name: \"D\", mime: \"text/x-d\", mode: \"d\", ext: [\"d\"]},\n    {name: \"Dart\", mimes: [\"application/dart\", \"text/x-dart\"], mode: \"dart\", ext: [\"dart\"]},\n    {name: \"diff\", mime: \"text/x-diff\", mode: \"diff\", ext: [\"diff\", \"patch\"]},\n    {name: \"Django\", mime: \"text/x-django\", mode: \"django\"},\n    {name: \"Dockerfile\", mime: \"text/x-dockerfile\", mode: \"dockerfile\", file: /^Dockerfile$/},\n    {name: \"DTD\", mime: \"application/xml-dtd\", mode: \"dtd\", ext: [\"dtd\"]},\n    {name: \"Dylan\", mime: \"text/x-dylan\", mode: \"dylan\", ext: [\"dylan\", \"dyl\", \"intr\"]},\n    {name: \"EBNF\", mime: \"text/x-ebnf\", mode: \"ebnf\"},\n    {name: \"ECL\", mime: \"text/x-ecl\", mode: \"ecl\", ext: [\"ecl\"]},\n    {name: \"edn\", mime: \"application/edn\", mode: \"clojure\", ext: [\"edn\"]},\n    {name: \"Eiffel\", mime: \"text/x-eiffel\", mode: \"eiffel\", ext: [\"e\"]},\n    {name: \"Elm\", mime: \"text/x-elm\", mode: \"elm\", ext: [\"elm\"]},\n    {name: \"Embedded Javascript\", mime: \"application/x-ejs\", mode: \"htmlembedded\", ext: [\"ejs\"]},\n    {name: \"Embedded Ruby\", mime: \"application/x-erb\", mode: \"htmlembedded\", ext: [\"erb\"]},\n    {name: \"Erlang\", mime: \"text/x-erlang\", mode: \"erlang\", ext: [\"erl\"]},\n    {name: \"Esper\", mime: \"text/x-esper\", mode: \"sql\"},\n    {name: \"Factor\", mime: \"text/x-factor\", mode: \"factor\", ext: [\"factor\"]},\n    {name: \"FCL\", mime: \"text/x-fcl\", mode: \"fcl\"},\n    {name: \"Forth\", mime: \"text/x-forth\", mode: \"forth\", ext: [\"forth\", \"fth\", \"4th\"]},\n    {name: \"Fortran\", mime: \"text/x-fortran\", mode: \"fortran\", ext: [\"f\", \"for\", \"f77\", \"f90\", \"f95\"]},\n    {name: \"F#\", mime: \"text/x-fsharp\", mode: \"mllike\", ext: [\"fs\"], alias: [\"fsharp\"]},\n    {name: \"Gas\", mime: \"text/x-gas\", mode: \"gas\", ext: [\"s\"]},\n    {name: \"Gherkin\", mime: \"text/x-feature\", mode: \"gherkin\", ext: [\"feature\"]},\n    {name: \"GitHub Flavored Markdown\", mime: \"text/x-gfm\", mode: \"gfm\", file: /^(readme|contributing|history).md$/i},\n    {name: \"Go\", mime: \"text/x-go\", mode: \"go\", ext: [\"go\"]},\n    {name: \"Groovy\", mime: \"text/x-groovy\", mode: \"groovy\", ext: [\"groovy\", \"gradle\"], file: /^Jenkinsfile$/},\n    {name: \"HAML\", mime: \"text/x-haml\", mode: \"haml\", ext: [\"haml\"]},\n    {name: \"Haskell\", mime: \"text/x-haskell\", mode: \"haskell\", ext: [\"hs\"]},\n    {name: \"Haskell (Literate)\", mime: \"text/x-literate-haskell\", mode: \"haskell-literate\", ext: [\"lhs\"]},\n    {name: \"Haxe\", mime: \"text/x-haxe\", mode: \"haxe\", ext: [\"hx\"]},\n    {name: \"HXML\", mime: \"text/x-hxml\", mode: \"haxe\", ext: [\"hxml\"]},\n    {name: \"ASP.NET\", mime: \"application/x-aspx\", mode: \"htmlembedded\", ext: [\"aspx\"], alias: [\"asp\", \"aspx\"]},\n    {name: \"HTML\", mime: \"text/html\", mode: \"htmlmixed\", ext: [\"html\", \"htm\", \"handlebars\", \"hbs\"], alias: [\"xhtml\"]},\n    {name: \"HTTP\", mime: \"message/http\", mode: \"http\"},\n    {name: \"IDL\", mime: \"text/x-idl\", mode: \"idl\", ext: [\"pro\"]},\n    {name: \"Pug\", mime: \"text/x-pug\", mode: \"pug\", ext: [\"jade\", \"pug\"], alias: [\"jade\"]},\n    {name: \"Java\", mime: \"text/x-java\", mode: \"clike\", ext: [\"java\"]},\n    {name: \"Java Server Pages\", mime: \"application/x-jsp\", mode: \"htmlembedded\", ext: [\"jsp\"], alias: [\"jsp\"]},\n    {name: \"JavaScript\", mimes: [\"text/javascript\", \"text/ecmascript\", \"application/javascript\", \"application/x-javascript\", \"application/ecmascript\"],\n     mode: \"javascript\", ext: [\"js\"], alias: [\"ecmascript\", \"js\", \"node\"]},\n    {name: \"JSON\", mimes: [\"application/json\", \"application/x-json\"], mode: \"javascript\", ext: [\"json\", \"map\"], alias: [\"json5\"]},\n    {name: \"JSON-LD\", mime: \"application/ld+json\", mode: \"javascript\", ext: [\"jsonld\"], alias: [\"jsonld\"]},\n    {name: \"JSX\", mime: \"text/jsx\", mode: \"jsx\", ext: [\"jsx\"]},\n    {name: \"Jinja2\", mime: \"text/jinja2\", mode: \"jinja2\", ext: [\"j2\", \"jinja\", \"jinja2\"]},\n    {name: \"Julia\", mime: \"text/x-julia\", mode: \"julia\", ext: [\"jl\"]},\n    {name: \"Kotlin\", mime: \"text/x-kotlin\", mode: \"clike\", ext: [\"kt\"]},\n    {name: \"LESS\", mime: \"text/x-less\", mode: \"css\", ext: [\"less\"]},\n    {name: \"LiveScript\", mime: \"text/x-livescript\", mode: \"livescript\", ext: [\"ls\"], alias: [\"ls\"]},\n    {name: \"Lua\", mime: \"text/x-lua\", mode: \"lua\", ext: [\"lua\"]},\n    {name: \"Markdown\", mime: \"text/x-markdown\", mode: \"markdown\", ext: [\"markdown\", \"md\", \"mkd\"]},\n    {name: \"mIRC\", mime: \"text/mirc\", mode: \"mirc\"},\n    {name: \"MariaDB SQL\", mime: \"text/x-mariadb\", mode: \"sql\"},\n    {name: \"Mathematica\", mime: \"text/x-mathematica\", mode: \"mathematica\", ext: [\"m\", \"nb\", \"wl\", \"wls\"]},\n    {name: \"Modelica\", mime: \"text/x-modelica\", mode: \"modelica\", ext: [\"mo\"]},\n    {name: \"MUMPS\", mime: \"text/x-mumps\", mode: \"mumps\", ext: [\"mps\"]},\n    {name: \"MS SQL\", mime: \"text/x-mssql\", mode: \"sql\"},\n    {name: \"mbox\", mime: \"application/mbox\", mode: \"mbox\", ext: [\"mbox\"]},\n    {name: \"MySQL\", mime: \"text/x-mysql\", mode: \"sql\"},\n    {name: \"Nginx\", mime: \"text/x-nginx-conf\", mode: \"nginx\", file: /nginx.*\\.conf$/i},\n    {name: \"NSIS\", mime: \"text/x-nsis\", mode: \"nsis\", ext: [\"nsh\", \"nsi\"]},\n    {name: \"NTriples\", mimes: [\"application/n-triples\", \"application/n-quads\", \"text/n-triples\"],\n     mode: \"ntriples\", ext: [\"nt\", \"nq\"]},\n    {name: \"Objective-C\", mime: \"text/x-objectivec\", mode: \"clike\", ext: [\"m\"], alias: [\"objective-c\", \"objc\"]},\n    {name: \"Objective-C++\", mime: \"text/x-objectivec++\", mode: \"clike\", ext: [\"mm\"], alias: [\"objective-c++\", \"objc++\"]},\n    {name: \"OCaml\", mime: \"text/x-ocaml\", mode: \"mllike\", ext: [\"ml\", \"mli\", \"mll\", \"mly\"]},\n    {name: \"Octave\", mime: \"text/x-octave\", mode: \"octave\", ext: [\"m\"]},\n    {name: \"Oz\", mime: \"text/x-oz\", mode: \"oz\", ext: [\"oz\"]},\n    {name: \"Pascal\", mime: \"text/x-pascal\", mode: \"pascal\", ext: [\"p\", \"pas\"]},\n    {name: \"PEG.js\", mime: \"null\", mode: \"pegjs\", ext: [\"jsonld\"]},\n    {name: \"Perl\", mime: \"text/x-perl\", mode: \"perl\", ext: [\"pl\", \"pm\"]},\n    {name: \"PHP\", mimes: [\"text/x-php\", \"application/x-httpd-php\", \"application/x-httpd-php-open\"], mode: \"php\", ext: [\"php\", \"php3\", \"php4\", \"php5\", \"php7\", \"phtml\"]},\n    {name: \"Pig\", mime: \"text/x-pig\", mode: \"pig\", ext: [\"pig\"]},\n    {name: \"Plain Text\", mime: \"text/plain\", mode: \"null\", ext: [\"txt\", \"text\", \"conf\", \"def\", \"list\", \"log\"]},\n    {name: \"PLSQL\", mime: \"text/x-plsql\", mode: \"sql\", ext: [\"pls\"]},\n    {name: \"PostgreSQL\", mime: \"text/x-pgsql\", mode: \"sql\"},\n    {name: \"PowerShell\", mime: \"application/x-powershell\", mode: \"powershell\", ext: [\"ps1\", \"psd1\", \"psm1\"]},\n    {name: \"Properties files\", mime: \"text/x-properties\", mode: \"properties\", ext: [\"properties\", \"ini\", \"in\"], alias: [\"ini\", \"properties\"]},\n    {name: \"ProtoBuf\", mime: \"text/x-protobuf\", mode: \"protobuf\", ext: [\"proto\"]},\n    {name: \"Python\", mime: \"text/x-python\", mode: \"python\", ext: [\"BUILD\", \"bzl\", \"py\", \"pyw\"], file: /^(BUCK|BUILD)$/},\n    {name: \"Puppet\", mime: \"text/x-puppet\", mode: \"puppet\", ext: [\"pp\"]},\n    {name: \"Q\", mime: \"text/x-q\", mode: \"q\", ext: [\"q\"]},\n    {name: \"R\", mime: \"text/x-rsrc\", mode: \"r\", ext: [\"r\", \"R\"], alias: [\"rscript\"]},\n    {name: \"reStructuredText\", mime: \"text/x-rst\", mode: \"rst\", ext: [\"rst\"], alias: [\"rst\"]},\n    {name: \"RPM Changes\", mime: \"text/x-rpm-changes\", mode: \"rpm\"},\n    {name: \"RPM Spec\", mime: \"text/x-rpm-spec\", mode: \"rpm\", ext: [\"spec\"]},\n    {name: \"Ruby\", mime: \"text/x-ruby\", mode: \"ruby\", ext: [\"rb\"], alias: [\"jruby\", \"macruby\", \"rake\", \"rb\", \"rbx\"]},\n    {name: \"Rust\", mime: \"text/x-rustsrc\", mode: \"rust\", ext: [\"rs\"]},\n    {name: \"SAS\", mime: \"text/x-sas\", mode: \"sas\", ext: [\"sas\"]},\n    {name: \"Sass\", mime: \"text/x-sass\", mode: \"sass\", ext: [\"sass\"]},\n    {name: \"Scala\", mime: \"text/x-scala\", mode: \"clike\", ext: [\"scala\"]},\n    {name: \"Scheme\", mime: \"text/x-scheme\", mode: \"scheme\", ext: [\"scm\", \"ss\"]},\n    {name: \"SCSS\", mime: \"text/x-scss\", mode: \"css\", ext: [\"scss\"]},\n    {name: \"Shell\", mimes: [\"text/x-sh\", \"application/x-sh\"], mode: \"shell\", ext: [\"sh\", \"ksh\", \"bash\"], alias: [\"bash\", \"sh\", \"zsh\"], file: /^PKGBUILD$/},\n    {name: \"Sieve\", mime: \"application/sieve\", mode: \"sieve\", ext: [\"siv\", \"sieve\"]},\n    {name: \"Slim\", mimes: [\"text/x-slim\", \"application/x-slim\"], mode: \"slim\", ext: [\"slim\"]},\n    {name: \"Smalltalk\", mime: \"text/x-stsrc\", mode: \"smalltalk\", ext: [\"st\"]},\n    {name: \"Smarty\", mime: \"text/x-smarty\", mode: \"smarty\", ext: [\"tpl\"]},\n    {name: \"Solr\", mime: \"text/x-solr\", mode: \"solr\"},\n    {name: \"SML\", mime: \"text/x-sml\", mode: \"mllike\", ext: [\"sml\", \"sig\", \"fun\", \"smackspec\"]},\n    {name: \"Soy\", mime: \"text/x-soy\", mode: \"soy\", ext: [\"soy\"], alias: [\"closure template\"]},\n    {name: \"SPARQL\", mime: \"application/sparql-query\", mode: \"sparql\", ext: [\"rq\", \"sparql\"], alias: [\"sparul\"]},\n    {name: \"Spreadsheet\", mime: \"text/x-spreadsheet\", mode: \"spreadsheet\", alias: [\"excel\", \"formula\"]},\n    {name: \"SQL\", mime: \"text/x-sql\", mode: \"sql\", ext: [\"sql\"]},\n    {name: \"SQLite\", mime: \"text/x-sqlite\", mode: \"sql\"},\n    {name: \"Squirrel\", mime: \"text/x-squirrel\", mode: \"clike\", ext: [\"nut\"]},\n    {name: \"Stylus\", mime: \"text/x-styl\", mode: \"stylus\", ext: [\"styl\"]},\n    {name: \"Swift\", mime: \"text/x-swift\", mode: \"swift\", ext: [\"swift\"]},\n    {name: \"sTeX\", mime: \"text/x-stex\", mode: \"stex\"},\n    {name: \"LaTeX\", mime: \"text/x-latex\", mode: \"stex\", ext: [\"text\", \"ltx\", \"tex\"], alias: [\"tex\"]},\n    {name: \"SystemVerilog\", mime: \"text/x-systemverilog\", mode: \"verilog\", ext: [\"v\", \"sv\", \"svh\"]},\n    {name: \"Tcl\", mime: \"text/x-tcl\", mode: \"tcl\", ext: [\"tcl\"]},\n    {name: \"Textile\", mime: \"text/x-textile\", mode: \"textile\", ext: [\"textile\"]},\n    {name: \"TiddlyWiki \", mime: \"text/x-tiddlywiki\", mode: \"tiddlywiki\"},\n    {name: \"Tiki wiki\", mime: \"text/tiki\", mode: \"tiki\"},\n    {name: \"TOML\", mime: \"text/x-toml\", mode: \"toml\", ext: [\"toml\"]},\n    {name: \"Tornado\", mime: \"text/x-tornado\", mode: \"tornado\"},\n    {name: \"troff\", mime: \"text/troff\", mode: \"troff\", ext: [\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\"]},\n    {name: \"TTCN\", mime: \"text/x-ttcn\", mode: \"ttcn\", ext: [\"ttcn\", \"ttcn3\", \"ttcnpp\"]},\n    {name: \"TTCN_CFG\", mime: \"text/x-ttcn-cfg\", mode: \"ttcn-cfg\", ext: [\"cfg\"]},\n    {name: \"Turtle\", mime: \"text/turtle\", mode: \"turtle\", ext: [\"ttl\"]},\n    {name: \"TypeScript\", mime: \"application/typescript\", mode: \"javascript\", ext: [\"ts\"], alias: [\"ts\"]},\n    {name: \"TypeScript-JSX\", mime: \"text/typescript-jsx\", mode: \"jsx\", ext: [\"tsx\"], alias: [\"tsx\"]},\n    {name: \"Twig\", mime: \"text/x-twig\", mode: \"twig\"},\n    {name: \"Web IDL\", mime: \"text/x-webidl\", mode: \"webidl\", ext: [\"webidl\"]},\n    {name: \"VB.NET\", mime: \"text/x-vb\", mode: \"vb\", ext: [\"vb\"]},\n    {name: \"VBScript\", mime: \"text/vbscript\", mode: \"vbscript\", ext: [\"vbs\"]},\n    {name: \"Velocity\", mime: \"text/velocity\", mode: \"velocity\", ext: [\"vtl\"]},\n    {name: \"Verilog\", mime: \"text/x-verilog\", mode: \"verilog\", ext: [\"v\"]},\n    {name: \"VHDL\", mime: \"text/x-vhdl\", mode: \"vhdl\", ext: [\"vhd\", \"vhdl\"]},\n    {name: \"Vue.js Component\", mimes: [\"script/x-vue\", \"text/x-vue\"], mode: \"vue\", ext: [\"vue\"]},\n    {name: \"XML\", mimes: [\"application/xml\", \"text/xml\"], mode: \"xml\", ext: [\"xml\", \"xsl\", \"xsd\", \"svg\"], alias: [\"rss\", \"wsdl\", \"xsd\"]},\n    {name: \"XQuery\", mime: \"application/xquery\", mode: \"xquery\", ext: [\"xy\", \"xquery\"]},\n    {name: \"Yacas\", mime: \"text/x-yacas\", mode: \"yacas\", ext: [\"ys\"]},\n    {name: \"YAML\", mimes: [\"text/x-yaml\", \"text/yaml\"], mode: \"yaml\", ext: [\"yaml\", \"yml\"], alias: [\"yml\"]},\n    {name: \"Z80\", mime: \"text/x-z80\", mode: \"z80\", ext: [\"z80\"]},\n    {name: \"mscgen\", mime: \"text/x-mscgen\", mode: \"mscgen\", ext: [\"mscgen\", \"mscin\", \"msc\"]},\n    {name: \"xu\", mime: \"text/x-xu\", mode: \"mscgen\", ext: [\"xu\"]},\n    {name: \"msgenny\", mime: \"text/x-msgenny\", mode: \"mscgen\", ext: [\"msgenny\"]}\n  ];\n  // Ensure all modes have a mime property for backwards compatibility\n  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n    var info = CodeMirror.modeInfo[i];\n    if (info.mimes) info.mime = info.mimes[0];\n  }\n\n  CodeMirror.findModeByMIME = function(mime) {\n    mime = mime.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.mime == mime) return info;\n      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)\n        if (info.mimes[j] == mime) return info;\n    }\n    if (/\\+xml$/.test(mime)) return CodeMirror.findModeByMIME(\"application/xml\")\n    if (/\\+json$/.test(mime)) return CodeMirror.findModeByMIME(\"application/json\")\n  };\n\n  CodeMirror.findModeByExtension = function(ext) {\n    ext = ext.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.ext) for (var j = 0; j < info.ext.length; j++)\n        if (info.ext[j] == ext) return info;\n    }\n  };\n\n  CodeMirror.findModeByFileName = function(filename) {\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.file && info.file.test(filename)) return info;\n    }\n    var dot = filename.lastIndexOf(\".\");\n    var ext = dot > -1 && filename.substring(dot + 1, filename.length);\n    if (ext) return CodeMirror.findModeByExtension(ext);\n  };\n\n  CodeMirror.findModeByName = function(name) {\n    name = name.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.name.toLowerCase() == name) return info;\n      if (info.alias) for (var j = 0; j < info.alias.length; j++)\n        if (info.alias[j].toLowerCase() == name) return info;\n    }\n  };\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nvar htmlConfig = {\n  autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,\n                    'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,\n                    'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,\n                    'track': true, 'wbr': true, 'menuitem': true},\n  implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,\n                     'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,\n                     'th': true, 'tr': true},\n  contextGrabbers: {\n    'dd': {'dd': true, 'dt': true},\n    'dt': {'dd': true, 'dt': true},\n    'li': {'li': true},\n    'option': {'option': true, 'optgroup': true},\n    'optgroup': {'optgroup': true},\n    'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,\n          'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,\n          'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,\n          'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,\n          'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},\n    'rp': {'rp': true, 'rt': true},\n    'rt': {'rp': true, 'rt': true},\n    'tbody': {'tbody': true, 'tfoot': true},\n    'td': {'td': true, 'th': true},\n    'tfoot': {'tbody': true},\n    'th': {'td': true, 'th': true},\n    'thead': {'tbody': true, 'tfoot': true},\n    'tr': {'tr': true}\n  },\n  doNotIndent: {\"pre\": true},\n  allowUnquoted: true,\n  allowMissing: true,\n  caseFold: true\n}\n\nvar xmlConfig = {\n  autoSelfClosers: {},\n  implicitlyClosed: {},\n  contextGrabbers: {},\n  doNotIndent: {},\n  allowUnquoted: false,\n  allowMissing: false,\n  allowMissingTagName: false,\n  caseFold: false\n}\n\nCodeMirror.defineMode(\"xml\", function(editorConf, config_) {\n  var indentUnit = editorConf.indentUnit\n  var config = {}\n  var defaults = config_.htmlMode ? htmlConfig : xmlConfig\n  for (var prop in defaults) config[prop] = defaults[prop]\n  for (var prop in config_) config[prop] = config_[prop]\n\n  // Return variables for tokenizers\n  var type, setStyle;\n\n  function inText(stream, state) {\n    function chain(parser) {\n      state.tokenize = parser;\n      return parser(stream, state);\n    }\n\n    var ch = stream.next();\n    if (ch == \"<\") {\n      if (stream.eat(\"!\")) {\n        if (stream.eat(\"[\")) {\n          if (stream.match(\"CDATA[\")) return chain(inBlock(\"atom\", \"]]>\"));\n          else return null;\n        } else if (stream.match(\"--\")) {\n          return chain(inBlock(\"comment\", \"-->\"));\n        } else if (stream.match(\"DOCTYPE\", true, true)) {\n          stream.eatWhile(/[\\w\\._\\-]/);\n          return chain(doctype(1));\n        } else {\n          return null;\n        }\n      } else if (stream.eat(\"?\")) {\n        stream.eatWhile(/[\\w\\._\\-]/);\n        state.tokenize = inBlock(\"meta\", \"?>\");\n        return \"meta\";\n      } else {\n        type = stream.eat(\"/\") ? \"closeTag\" : \"openTag\";\n        state.tokenize = inTag;\n        return \"tag bracket\";\n      }\n    } else if (ch == \"&\") {\n      var ok;\n      if (stream.eat(\"#\")) {\n        if (stream.eat(\"x\")) {\n          ok = stream.eatWhile(/[a-fA-F\\d]/) && stream.eat(\";\");\n        } else {\n          ok = stream.eatWhile(/[\\d]/) && stream.eat(\";\");\n        }\n      } else {\n        ok = stream.eatWhile(/[\\w\\.\\-:]/) && stream.eat(\";\");\n      }\n      return ok ? \"atom\" : \"error\";\n    } else {\n      stream.eatWhile(/[^&<]/);\n      return null;\n    }\n  }\n  inText.isInText = true;\n\n  function inTag(stream, state) {\n    var ch = stream.next();\n    if (ch == \">\" || (ch == \"/\" && stream.eat(\">\"))) {\n      state.tokenize = inText;\n      type = ch == \">\" ? \"endTag\" : \"selfcloseTag\";\n      return \"tag bracket\";\n    } else if (ch == \"=\") {\n      type = \"equals\";\n      return null;\n    } else if (ch == \"<\") {\n      state.tokenize = inText;\n      state.state = baseState;\n      state.tagName = state.tagStart = null;\n      var next = state.tokenize(stream, state);\n      return next ? next + \" tag error\" : \"tag error\";\n    } else if (/[\\'\\\"]/.test(ch)) {\n      state.tokenize = inAttribute(ch);\n      state.stringStartCol = stream.column();\n      return state.tokenize(stream, state);\n    } else {\n      stream.match(/^[^\\s\\u00a0=<>\\\"\\']*[^\\s\\u00a0=<>\\\"\\'\\/]/);\n      return \"word\";\n    }\n  }\n\n  function inAttribute(quote) {\n    var closure = function(stream, state) {\n      while (!stream.eol()) {\n        if (stream.next() == quote) {\n          state.tokenize = inTag;\n          break;\n        }\n      }\n      return \"string\";\n    };\n    closure.isInAttribute = true;\n    return closure;\n  }\n\n  function inBlock(style, terminator) {\n    return function(stream, state) {\n      while (!stream.eol()) {\n        if (stream.match(terminator)) {\n          state.tokenize = inText;\n          break;\n        }\n        stream.next();\n      }\n      return style;\n    }\n  }\n\n  function doctype(depth) {\n    return function(stream, state) {\n      var ch;\n      while ((ch = stream.next()) != null) {\n        if (ch == \"<\") {\n          state.tokenize = doctype(depth + 1);\n          return state.tokenize(stream, state);\n        } else if (ch == \">\") {\n          if (depth == 1) {\n            state.tokenize = inText;\n            break;\n          } else {\n            state.tokenize = doctype(depth - 1);\n            return state.tokenize(stream, state);\n          }\n        }\n      }\n      return \"meta\";\n    };\n  }\n\n  function Context(state, tagName, startOfLine) {\n    this.prev = state.context;\n    this.tagName = tagName;\n    this.indent = state.indented;\n    this.startOfLine = startOfLine;\n    if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))\n      this.noIndent = true;\n  }\n  function popContext(state) {\n    if (state.context) state.context = state.context.prev;\n  }\n  function maybePopContext(state, nextTagName) {\n    var parentTagName;\n    while (true) {\n      if (!state.context) {\n        return;\n      }\n      parentTagName = state.context.tagName;\n      if (!config.contextGrabbers.hasOwnProperty(parentTagName) ||\n          !config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {\n        return;\n      }\n      popContext(state);\n    }\n  }\n\n  function baseState(type, stream, state) {\n    if (type == \"openTag\") {\n      state.tagStart = stream.column();\n      return tagNameState;\n    } else if (type == \"closeTag\") {\n      return closeTagNameState;\n    } else {\n      return baseState;\n    }\n  }\n  function tagNameState(type, stream, state) {\n    if (type == \"word\") {\n      state.tagName = stream.current();\n      setStyle = \"tag\";\n      return attrState;\n    } else if (config.allowMissingTagName && type == \"endTag\") {\n      setStyle = \"tag bracket\";\n      return attrState(type, stream, state);\n    } else {\n      setStyle = \"error\";\n      return tagNameState;\n    }\n  }\n  function closeTagNameState(type, stream, state) {\n    if (type == \"word\") {\n      var tagName = stream.current();\n      if (state.context && state.context.tagName != tagName &&\n          config.implicitlyClosed.hasOwnProperty(state.context.tagName))\n        popContext(state);\n      if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {\n        setStyle = \"tag\";\n        return closeState;\n      } else {\n        setStyle = \"tag error\";\n        return closeStateErr;\n      }\n    } else if (config.allowMissingTagName && type == \"endTag\") {\n      setStyle = \"tag bracket\";\n      return closeState(type, stream, state);\n    } else {\n      setStyle = \"error\";\n      return closeStateErr;\n    }\n  }\n\n  function closeState(type, _stream, state) {\n    if (type != \"endTag\") {\n      setStyle = \"error\";\n      return closeState;\n    }\n    popContext(state);\n    return baseState;\n  }\n  function closeStateErr(type, stream, state) {\n    setStyle = \"error\";\n    return closeState(type, stream, state);\n  }\n\n  function attrState(type, _stream, state) {\n    if (type == \"word\") {\n      setStyle = \"attribute\";\n      return attrEqState;\n    } else if (type == \"endTag\" || type == \"selfcloseTag\") {\n      var tagName = state.tagName, tagStart = state.tagStart;\n      state.tagName = state.tagStart = null;\n      if (type == \"selfcloseTag\" ||\n          config.autoSelfClosers.hasOwnProperty(tagName)) {\n        maybePopContext(state, tagName);\n      } else {\n        maybePopContext(state, tagName);\n        state.context = new Context(state, tagName, tagStart == state.indented);\n      }\n      return baseState;\n    }\n    setStyle = \"error\";\n    return attrState;\n  }\n  function attrEqState(type, stream, state) {\n    if (type == \"equals\") return attrValueState;\n    if (!config.allowMissing) setStyle = \"error\";\n    return attrState(type, stream, state);\n  }\n  function attrValueState(type, stream, state) {\n    if (type == \"string\") return attrContinuedState;\n    if (type == \"word\" && config.allowUnquoted) {setStyle = \"string\"; return attrState;}\n    setStyle = \"error\";\n    return attrState(type, stream, state);\n  }\n  function attrContinuedState(type, stream, state) {\n    if (type == \"string\") return attrContinuedState;\n    return attrState(type, stream, state);\n  }\n\n  return {\n    startState: function(baseIndent) {\n      var state = {tokenize: inText,\n                   state: baseState,\n                   indented: baseIndent || 0,\n                   tagName: null, tagStart: null,\n                   context: null}\n      if (baseIndent != null) state.baseIndent = baseIndent\n      return state\n    },\n\n    token: function(stream, state) {\n      if (!state.tagName && stream.sol())\n        state.indented = stream.indentation();\n\n      if (stream.eatSpace()) return null;\n      type = null;\n      var style = state.tokenize(stream, state);\n      if ((style || type) && style != \"comment\") {\n        setStyle = null;\n        state.state = state.state(type || style, stream, state);\n        if (setStyle)\n          style = setStyle == \"error\" ? style + \" error\" : setStyle;\n      }\n      return style;\n    },\n\n    indent: function(state, textAfter, fullLine) {\n      var context = state.context;\n      // Indent multi-line strings (e.g. css).\n      if (state.tokenize.isInAttribute) {\n        if (state.tagStart == state.indented)\n          return state.stringStartCol + 1;\n        else\n          return state.indented + indentUnit;\n      }\n      if (context && context.noIndent) return CodeMirror.Pass;\n      if (state.tokenize != inTag && state.tokenize != inText)\n        return fullLine ? fullLine.match(/^(\\s*)/)[0].length : 0;\n      // Indent the starts of attribute names.\n      if (state.tagName) {\n        if (config.multilineTagIndentPastTag !== false)\n          return state.tagStart + state.tagName.length + 2;\n        else\n          return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);\n      }\n      if (config.alignCDATA && /<!\\[CDATA\\[/.test(textAfter)) return 0;\n      var tagAfter = textAfter && /^<(\\/)?([\\w_:\\.-]*)/.exec(textAfter);\n      if (tagAfter && tagAfter[1]) { // Closing tag spotted\n        while (context) {\n          if (context.tagName == tagAfter[2]) {\n            context = context.prev;\n            break;\n          } else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) {\n            context = context.prev;\n          } else {\n            break;\n          }\n        }\n      } else if (tagAfter) { // Opening tag spotted\n        while (context) {\n          var grabbers = config.contextGrabbers[context.tagName];\n          if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))\n            context = context.prev;\n          else\n            break;\n        }\n      }\n      while (context && context.prev && !context.startOfLine)\n        context = context.prev;\n      if (context) return context.indent + indentUnit;\n      else return state.baseIndent || 0;\n    },\n\n    electricInput: /<\\/[\\s\\w:]+>$/,\n    blockCommentStart: \"<!--\",\n    blockCommentEnd: \"-->\",\n\n    configuration: config.htmlMode ? \"html\" : \"xml\",\n    helperType: config.htmlMode ? \"html\" : \"xml\",\n\n    skipAttribute: function(state) {\n      if (state.state == attrValueState)\n        state.state = attrState\n    },\n\n    xmlCurrentTag: function(state) {\n      return state.tagName ? {name: state.tagName, close: state.type == \"closeTag\"} : null\n    },\n\n    xmlCurrentContext: function(state) {\n      var context = []\n      for (var cx = state.context; cx; cx = cx.prev)\n        if (cx.tagName) context.push(cx.tagName)\n      return context.reverse()\n    }\n  };\n});\n\nCodeMirror.defineMIME(\"text/xml\", \"xml\");\nCodeMirror.defineMIME(\"application/xml\", \"xml\");\nif (!CodeMirror.mimeModes.hasOwnProperty(\"text/html\"))\n  CodeMirror.defineMIME(\"text/html\", {name: \"xml\", htmlMode: true});\n\n});\n","\nmodule.exports = {\n\n    _patterns: [\n\n        {\n            name: 'blockquote',\n            regex: /<blockquote.*?>([\\s\\S]*?)<\\/blockquote>/im,\n            callback: function (matches) {\n                return '> ' + this.trim(matches[1]);\n            }\n        },\n\n        {\n\n            name: 'pre-code',\n            regex: /<pre.*?>.*?<code.*?>([\\s\\S]*?)<\\/code>.*?<\\/pre>/im,\n            callback: function (matches) {\n                return '```\\n' + this.escape(matches[1]) + '\\n```';\n                //return '\\n```\\n$1\\n```\\n';\n            }\n        },\n\n        {\n            name: 'code',\n            regex: /<code.*?>([\\s\\S]*?)<\\/code>/im,\n            callback: function (matches) {\n                return '```' + this.escape(matches[1]) + '```';\n            }\n        },\n\n        {\n            name: 'pre',\n            regex: /<pre.*?>([\\s\\S]*?)<\\/pre>/im,\n            callback: function (matches) {\n                return '\\n```\\n' + this.escape(matches[1]) + '\\n```\\n';\n            }\n        },\n\n        {\n            name: 'heading',\n            regex: /<h(\\d*).*?>(.*?)<\\/h\\d*>/im,\n            callback: function (matches) {\n                var count = parseInt(matches[1]);\n                var string = '';\n                for (var x = 0; x < count; x++) {\n                    string += '#'\n                }\n                return string + ' ' + this.trim(matches[2]) + '\\n';\n            }\n        },\n        {\n            name: 'p',\n            //regex: /<p>([\\s\\S]*?)<\\/p>/gim,\n            regex: /<p.*?>(.*?)<\\/p>/gmi,\n            callback: function () {\n                return '\\n$1\\n';\n            }\n\n        },\n\n\n        {\n            name: 'ul',\n            regex: /<ul.*?>([\\s\\S]*?)<\\/ul>/im,\n            callback: function (matches) {\n                var html = matches[1];\n                var regex = /<li>([\\s\\S]*?)<\\/li>/i;\n                var m = [];\n                while (m = regex.exec(html)) {\n                    if (m) {\n                        html = this.trim(html.replace(regex, '* $1{x}'));\n                    }\n                }\n                return html.replace(/{x}/g, '\\n');;\n\n            }\n        },\n        {\n            name: 'ol',\n            regex: /<ol.*?>([\\s\\S]*?)<\\/ol>/im,\n            callback: function (matches) {\n                var html = matches[1];\n                var regex = /<li>([\\s\\S]*?)<\\/li>/i;\n                var m = [];\n                while (m = regex.exec(html)) {\n                    if (m) {\n                        html = this.trim(html.replace(regex, '1. $1{x}'));\n                    }\n                }\n                return html.replace(/{x}/g, '\\n');\n            }\n        },\n\n\n        {\n            name: 'bold',\n            regex: /<(?:b|strong)>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '**$1**';\n            }\n        },\n\n        {\n            name: 'italic',\n            regex: /<(?:i|em)>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '*$1*';\n            }\n        },\n        {\n            name: 'del',\n            regex: /<del.*?>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '~~$1~~';\n            }\n        },\n\n        {\n            name: 'br',\n            regex: /<br.*?>/gim,\n            callback: function () {\n                return '\\n';\n            }\n        },\n        {\n            name: 'hr',\n            regex: /<hr.*?>/gim,\n            callback: function () {\n                return '\\n* * *\\n';\n            }\n        },\n\n        {\n            name: 'div',\n            regex: /<div.*?>(.*?)<\\/div>/gim,\n            callback: function () {\n                return '$1\\n';\n            }\n        },\n        {\n            name: 'a',\n            regex: /<a.*? href=\"([^\"]+)\".*?>([^<]+)<\\/a>/gim,\n            callback: function () {\n                return '[$2]($1 \"$2\")';\n            }\n\n        },\n        {\n            name: 'image',\n            regex: /<img.*?src\\s*=\\s*['\\\"]([^'\\\"]*?)['\\\"][^>]*?>/gim,\n            callback: function () {\n                return '![]($1)';\n            }\n        },\n\n        {\n            name: 'style',\n            regex: /<style\\b[^<]*(?:(?!<\\/style>)<[^<]*)*<\\/style>/gim,\n            callback: function () {\n                return '';\n            }\n        },\n\n        {\n            name: 'script',\n            regex: /<script\\b[^<]*(?:(?!<\\/script>)<[^<]*)*<\\/script>/gim,\n            callback: function () {\n                return '';\n            }\n        },\n\n        {\n            name: 'html',\n            regex: /<(?:.)*?>/gm,\n            callback: function () {\n                return '';\n            }\n        },\n\n\n    ],\n\n    escape: function (html) {\n        return html\n            .replace(/</g, \"&lt;\")\n            .replace(/>/g, \"&gt;\");\n        // .replace(/\"/g, \"&quot;\")\n        // .replace(/'/g, \"&#039;\");\n    },\n\n    decode: function (str) {\n\n\n\n        return str.replace(/&nbsp;/g, ' ')\n            .replace(/&amp;/g, '&')\n            .replace(/&gt;/g, '>')\n            .replace(/&lt;/g, '<')\n            .replace(/&quot;/g, '\"')\n            .replace(/&#(\\d+);/g, function (match, dec) {\n                return String.fromCharCode(dec);\n            });\n\n    },\n    trim: function (str) {\n        return str.replace(/(?:(?:^|\\n)\\s+|\\s+(?:$|\\n))/g, '').replace(/\\s+/g, ' ');\n    },\n    parse: function (html, regexs) {\n        var _t = this;\n        if (html && html.length > 0) {\n\n            if (regexs) {\n                regexs = Array.isArray(regexs) ? regexs : [regexs];\n                this._patterns.concat(regexs);\n            }\n            this._patterns.forEach(function (p) {\n                var matches = [];\n                while (matches = p.regex.exec(html)) {\n                    // console.log(matches);\n                    if (matches) {\n                        var txt = '$1';\n                        if (p.callback && typeof (p.callback) === 'function') {\n                            txt = p.callback.call(_t, matches);\n                        }\n\n                        html = html.replace(p.regex, txt);\n                    }\n                }\n            });\n        }\n        return this.decode(html);\n    }\n}","const Renderer = require('./Renderer.js');\nconst { defaults } = require('./defaults.js');\nconst { inline } = require('./rules.js');\nconst {\n  findClosingBracket,\n  escape\n} = require('./helpers.js');\n\n/**\n * Inline Lexer & Compiler\n */\nmodule.exports = class InlineLexer {\n  constructor(links, options) {\n    this.options = options || defaults;\n    this.links = links;\n    this.rules = inline.normal;\n    this.options.renderer = this.options.renderer || new Renderer();\n    this.renderer = this.options.renderer;\n    this.renderer.options = this.options;\n\n    if (!this.links) {\n      throw new Error('Tokens array requires a `links` property.');\n    }\n\n    if (this.options.pedantic) {\n      this.rules = inline.pedantic;\n    } else if (this.options.gfm) {\n      if (this.options.breaks) {\n        this.rules = inline.breaks;\n      } else {\n        this.rules = inline.gfm;\n      }\n    }\n  }\n\n  /**\n   * Expose Inline Rules\n   */\n  static get rules() {\n    return inline;\n  }\n\n  /**\n   * Static Lexing/Compiling Method\n   */\n  static output(src, links, options) {\n    const inline = new InlineLexer(links, options);\n    return inline.output(src);\n  }\n\n  /**\n   * Lexing/Compiling\n   */\n  output(src) {\n    let out = '',\n      link,\n      text,\n      href,\n      title,\n      cap,\n      prevCapZero;\n\n    while (src) {\n      // escape\n      if (cap = this.rules.escape.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += escape(cap[1]);\n        continue;\n      }\n\n      // tag\n      if (cap = this.rules.tag.exec(src)) {\n        if (!this.inLink && /^<a /i.test(cap[0])) {\n          this.inLink = true;\n        } else if (this.inLink && /^<\\/a>/i.test(cap[0])) {\n          this.inLink = false;\n        }\n        if (!this.inRawBlock && /^<(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n          this.inRawBlock = true;\n        } else if (this.inRawBlock && /^<\\/(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n          this.inRawBlock = false;\n        }\n\n        src = src.substring(cap[0].length);\n        out += this.options.sanitize\n          ? this.options.sanitizer\n            ? this.options.sanitizer(cap[0])\n            : escape(cap[0])\n          : cap[0];\n        continue;\n      }\n\n      // link\n      if (cap = this.rules.link.exec(src)) {\n        const lastParenIndex = findClosingBracket(cap[2], '()');\n        if (lastParenIndex > -1) {\n          const start = cap[0].indexOf('!') === 0 ? 5 : 4;\n          const linkLen = start + cap[1].length + lastParenIndex;\n          cap[2] = cap[2].substring(0, lastParenIndex);\n          cap[0] = cap[0].substring(0, linkLen).trim();\n          cap[3] = '';\n        }\n        src = src.substring(cap[0].length);\n        this.inLink = true;\n        href = cap[2];\n        if (this.options.pedantic) {\n          link = /^([^'\"]*[^\\s])\\s+(['\"])(.*)\\2/.exec(href);\n\n          if (link) {\n            href = link[1];\n            title = link[3];\n          } else {\n            title = '';\n          }\n        } else {\n          title = cap[3] ? cap[3].slice(1, -1) : '';\n        }\n        href = href.trim().replace(/^<([\\s\\S]*)>$/, '$1');\n        out += this.outputLink(cap, {\n          href: InlineLexer.escapes(href),\n          title: InlineLexer.escapes(title)\n        });\n        this.inLink = false;\n        continue;\n      }\n\n      // reflink, nolink\n      if ((cap = this.rules.reflink.exec(src))\n          || (cap = this.rules.nolink.exec(src))) {\n        src = src.substring(cap[0].length);\n        link = (cap[2] || cap[1]).replace(/\\s+/g, ' ');\n        link = this.links[link.toLowerCase()];\n        if (!link || !link.href) {\n          out += cap[0].charAt(0);\n          src = cap[0].substring(1) + src;\n          continue;\n        }\n        this.inLink = true;\n        out += this.outputLink(cap, link);\n        this.inLink = false;\n        continue;\n      }\n\n      // strong\n      if (cap = this.rules.strong.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));\n        continue;\n      }\n\n      // em\n      if (cap = this.rules.em.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));\n        continue;\n      }\n\n      // code\n      if (cap = this.rules.code.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.codespan(escape(cap[2].trim(), true));\n        continue;\n      }\n\n      // br\n      if (cap = this.rules.br.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.br();\n        continue;\n      }\n\n      // del (gfm)\n      if (cap = this.rules.del.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.del(this.output(cap[1]));\n        continue;\n      }\n\n      // autolink\n      if (cap = this.rules.autolink.exec(src)) {\n        src = src.substring(cap[0].length);\n        if (cap[2] === '@') {\n          text = escape(this.mangle(cap[1]));\n          href = 'mailto:' + text;\n        } else {\n          text = escape(cap[1]);\n          href = text;\n        }\n        out += this.renderer.link(href, null, text);\n        continue;\n      }\n\n      // url (gfm)\n      if (!this.inLink && (cap = this.rules.url.exec(src))) {\n        if (cap[2] === '@') {\n          text = escape(cap[0]);\n          href = 'mailto:' + text;\n        } else {\n          // do extended autolink path validation\n          do {\n            prevCapZero = cap[0];\n            cap[0] = this.rules._backpedal.exec(cap[0])[0];\n          } while (prevCapZero !== cap[0]);\n          text = escape(cap[0]);\n          if (cap[1] === 'www.') {\n            href = 'http://' + text;\n          } else {\n            href = text;\n          }\n        }\n        src = src.substring(cap[0].length);\n        out += this.renderer.link(href, null, text);\n        continue;\n      }\n\n      // text\n      if (cap = this.rules.text.exec(src)) {\n        src = src.substring(cap[0].length);\n        if (this.inRawBlock) {\n          out += this.renderer.text(this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]);\n        } else {\n          out += this.renderer.text(escape(this.smartypants(cap[0])));\n        }\n        continue;\n      }\n\n      if (src) {\n        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));\n      }\n    }\n\n    return out;\n  }\n\n  static escapes(text) {\n    return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;\n  }\n\n  /**\n   * Compile Link\n   */\n  outputLink(cap, link) {\n    const href = link.href,\n      title = link.title ? escape(link.title) : null;\n\n    return cap[0].charAt(0) !== '!'\n      ? this.renderer.link(href, title, this.output(cap[1]))\n      : this.renderer.image(href, title, escape(cap[1]));\n  }\n\n  /**\n   * Smartypants Transformations\n   */\n  smartypants(text) {\n    if (!this.options.smartypants) return text;\n    return text\n      // em-dashes\n      .replace(/---/g, '\\u2014')\n      // en-dashes\n      .replace(/--/g, '\\u2013')\n      // opening singles\n      .replace(/(^|[-\\u2014/(\\[{\"\\s])'/g, '$1\\u2018')\n      // closing singles & apostrophes\n      .replace(/'/g, '\\u2019')\n      // opening doubles\n      .replace(/(^|[-\\u2014/(\\[{\\u2018\\s])\"/g, '$1\\u201c')\n      // closing doubles\n      .replace(/\"/g, '\\u201d')\n      // ellipses\n      .replace(/\\.{3}/g, '\\u2026');\n  }\n\n  /**\n   * Mangle Links\n   */\n  mangle(text) {\n    if (!this.options.mangle) return text;\n    const l = text.length;\n    let out = '',\n      i = 0,\n      ch;\n\n    for (; i < l; i++) {\n      ch = text.charCodeAt(i);\n      if (Math.random() > 0.5) {\n        ch = 'x' + ch.toString(16);\n      }\n      out += '&#' + ch + ';';\n    }\n\n    return out;\n  }\n};\n","const { defaults } = require('./defaults.js');\nconst { block } = require('./rules.js');\nconst {\n  rtrim,\n  splitCells,\n  escape\n} = require('./helpers.js');\n\n/**\n * Block Lexer\n */\nmodule.exports = class Lexer {\n  constructor(options) {\n    this.tokens = [];\n    this.tokens.links = Object.create(null);\n    this.options = options || defaults;\n    this.rules = block.normal;\n\n    if (this.options.pedantic) {\n      this.rules = block.pedantic;\n    } else if (this.options.gfm) {\n      this.rules = block.gfm;\n    }\n  }\n\n  /**\n   * Expose Block Rules\n   */\n  static get rules() {\n    return block;\n  }\n\n  /**\n   * Static Lex Method\n   */\n  static lex(src, options) {\n    const lexer = new Lexer(options);\n    return lexer.lex(src);\n  };\n\n  /**\n   * Preprocessing\n   */\n  lex(src) {\n    src = src\n      .replace(/\\r\\n|\\r/g, '\\n')\n      .replace(/\\t/g, '    ');\n\n    return this.token(src, true);\n  };\n\n  /**\n   * Lexing\n   */\n  token(src, top) {\n    src = src.replace(/^ +$/gm, '');\n    let next,\n      loose,\n      cap,\n      bull,\n      b,\n      item,\n      listStart,\n      listItems,\n      t,\n      space,\n      i,\n      tag,\n      l,\n      isordered,\n      istask,\n      ischecked;\n\n    while (src) {\n      // newline\n      if (cap = this.rules.newline.exec(src)) {\n        src = src.substring(cap[0].length);\n        if (cap[0].length > 1) {\n          this.tokens.push({\n            type: 'space'\n          });\n        }\n      }\n\n      // code\n      if (cap = this.rules.code.exec(src)) {\n        const lastToken = this.tokens[this.tokens.length - 1];\n        src = src.substring(cap[0].length);\n        // An indented code block cannot interrupt a paragraph.\n        if (lastToken && lastToken.type === 'paragraph') {\n          lastToken.text += '\\n' + cap[0].trimRight();\n        } else {\n          cap = cap[0].replace(/^ {4}/gm, '');\n          this.tokens.push({\n            type: 'code',\n            codeBlockStyle: 'indented',\n            text: !this.options.pedantic\n              ? rtrim(cap, '\\n')\n              : cap\n          });\n        }\n        continue;\n      }\n\n      // fences\n      if (cap = this.rules.fences.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'code',\n          lang: cap[2] ? cap[2].trim() : cap[2],\n          text: cap[3] || ''\n        });\n        continue;\n      }\n\n      // heading\n      if (cap = this.rules.heading.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'heading',\n          depth: cap[1].length,\n          text: cap[2]\n        });\n        continue;\n      }\n\n      // table no leading pipe (gfm)\n      if (cap = this.rules.nptable.exec(src)) {\n        item = {\n          type: 'table',\n          header: splitCells(cap[1].replace(/^ *| *\\| *$/g, '')),\n          align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\n          cells: cap[3] ? cap[3].replace(/\\n$/, '').split('\\n') : []\n        };\n\n        if (item.header.length === item.align.length) {\n          src = src.substring(cap[0].length);\n\n          for (i = 0; i < item.align.length; i++) {\n            if (/^ *-+: *$/.test(item.align[i])) {\n              item.align[i] = 'right';\n            } else if (/^ *:-+: *$/.test(item.align[i])) {\n              item.align[i] = 'center';\n            } else if (/^ *:-+ *$/.test(item.align[i])) {\n              item.align[i] = 'left';\n            } else {\n              item.align[i] = null;\n            }\n          }\n\n          for (i = 0; i < item.cells.length; i++) {\n            item.cells[i] = splitCells(item.cells[i], item.header.length);\n          }\n\n          this.tokens.push(item);\n\n          continue;\n        }\n      }\n\n      // hr\n      if (cap = this.rules.hr.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'hr'\n        });\n        continue;\n      }\n\n      // blockquote\n      if (cap = this.rules.blockquote.exec(src)) {\n        src = src.substring(cap[0].length);\n\n        this.tokens.push({\n          type: 'blockquote_start'\n        });\n\n        cap = cap[0].replace(/^ *> ?/gm, '');\n\n        // Pass `top` to keep the current\n        // \"toplevel\" state. This is exactly\n        // how markdown.pl works.\n        this.token(cap, top);\n\n        this.tokens.push({\n          type: 'blockquote_end'\n        });\n\n        continue;\n      }\n\n      // list\n      if (cap = this.rules.list.exec(src)) {\n        src = src.substring(cap[0].length);\n        bull = cap[2];\n        isordered = bull.length > 1;\n\n        listStart = {\n          type: 'list_start',\n          ordered: isordered,\n          start: isordered ? +bull : '',\n          loose: false\n        };\n\n        this.tokens.push(listStart);\n\n        // Get each top-level item.\n        cap = cap[0].match(this.rules.item);\n\n        listItems = [];\n        next = false;\n        l = cap.length;\n        i = 0;\n\n        for (; i < l; i++) {\n          item = cap[i];\n\n          // Remove the list item's bullet\n          // so it is seen as the next token.\n          space = item.length;\n          item = item.replace(/^ *([*+-]|\\d+\\.) */, '');\n\n          // Outdent whatever the\n          // list item contains. Hacky.\n          if (~item.indexOf('\\n ')) {\n            space -= item.length;\n            item = !this.options.pedantic\n              ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')\n              : item.replace(/^ {1,4}/gm, '');\n          }\n\n          // Determine whether the next list item belongs here.\n          // Backpedal if it does not belong in this list.\n          if (i !== l - 1) {\n            b = block.bullet.exec(cap[i + 1])[0];\n            if (bull.length > 1 ? b.length === 1\n              : (b.length > 1 || (this.options.smartLists && b !== bull))) {\n              src = cap.slice(i + 1).join('\\n') + src;\n              i = l - 1;\n            }\n          }\n\n          // Determine whether item is loose or not.\n          // Use: /(^|\\n)(?! )[^\\n]+\\n\\n(?!\\s*$)/\n          // for discount behavior.\n          loose = next || /\\n\\n(?!\\s*$)/.test(item);\n          if (i !== l - 1) {\n            next = item.charAt(item.length - 1) === '\\n';\n            if (!loose) loose = next;\n          }\n\n          if (loose) {\n            listStart.loose = true;\n          }\n\n          // Check for task list items\n          istask = /^\\[[ xX]\\] /.test(item);\n          ischecked = undefined;\n          if (istask) {\n            ischecked = item[1] !== ' ';\n            item = item.replace(/^\\[[ xX]\\] +/, '');\n          }\n\n          t = {\n            type: 'list_item_start',\n            task: istask,\n            checked: ischecked,\n            loose: loose\n          };\n\n          listItems.push(t);\n          this.tokens.push(t);\n\n          // Recurse.\n          this.token(item, false);\n\n          this.tokens.push({\n            type: 'list_item_end'\n          });\n        }\n\n        if (listStart.loose) {\n          l = listItems.length;\n          i = 0;\n          for (; i < l; i++) {\n            listItems[i].loose = true;\n          }\n        }\n\n        this.tokens.push({\n          type: 'list_end'\n        });\n\n        continue;\n      }\n\n      // html\n      if (cap = this.rules.html.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: this.options.sanitize\n            ? 'paragraph'\n            : 'html',\n          pre: !this.options.sanitizer\n            && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),\n          text: this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]\n        });\n        continue;\n      }\n\n      // def\n      if (top && (cap = this.rules.def.exec(src))) {\n        src = src.substring(cap[0].length);\n        if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);\n        tag = cap[1].toLowerCase().replace(/\\s+/g, ' ');\n        if (!this.tokens.links[tag]) {\n          this.tokens.links[tag] = {\n            href: cap[2],\n            title: cap[3]\n          };\n        }\n        continue;\n      }\n\n      // table (gfm)\n      if (cap = this.rules.table.exec(src)) {\n        item = {\n          type: 'table',\n          header: splitCells(cap[1].replace(/^ *| *\\| *$/g, '')),\n          align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\n          cells: cap[3] ? cap[3].replace(/\\n$/, '').split('\\n') : []\n        };\n\n        if (item.header.length === item.align.length) {\n          src = src.substring(cap[0].length);\n\n          for (i = 0; i < item.align.length; i++) {\n            if (/^ *-+: *$/.test(item.align[i])) {\n              item.align[i] = 'right';\n            } else if (/^ *:-+: *$/.test(item.align[i])) {\n              item.align[i] = 'center';\n            } else if (/^ *:-+ *$/.test(item.align[i])) {\n              item.align[i] = 'left';\n            } else {\n              item.align[i] = null;\n            }\n          }\n\n          for (i = 0; i < item.cells.length; i++) {\n            item.cells[i] = splitCells(\n              item.cells[i].replace(/^ *\\| *| *\\| *$/g, ''),\n              item.header.length);\n          }\n\n          this.tokens.push(item);\n\n          continue;\n        }\n      }\n\n      // lheading\n      if (cap = this.rules.lheading.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'heading',\n          depth: cap[2].charAt(0) === '=' ? 1 : 2,\n          text: cap[1]\n        });\n        continue;\n      }\n\n      // top-level paragraph\n      if (top && (cap = this.rules.paragraph.exec(src))) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'paragraph',\n          text: cap[1].charAt(cap[1].length - 1) === '\\n'\n            ? cap[1].slice(0, -1)\n            : cap[1]\n        });\n        continue;\n      }\n\n      // text\n      if (cap = this.rules.text.exec(src)) {\n        // Top-level should never reach here.\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'text',\n          text: cap[0]\n        });\n        continue;\n      }\n\n      if (src) {\n        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));\n      }\n    }\n\n    return this.tokens;\n  };\n};\n","const Renderer = require('./Renderer.js');\nconst Slugger = require('./Slugger.js');\nconst InlineLexer = require('./InlineLexer.js');\nconst TextRenderer = require('./TextRenderer.js');\nconst { defaults } = require('./defaults.js');\nconst {\n  merge,\n  unescape\n} = require('./helpers.js');\n\n/**\n * Parsing & Compiling\n */\nmodule.exports = class Parser {\n  constructor(options) {\n    this.tokens = [];\n    this.token = null;\n    this.options = options || defaults;\n    this.options.renderer = this.options.renderer || new Renderer();\n    this.renderer = this.options.renderer;\n    this.renderer.options = this.options;\n    this.slugger = new Slugger();\n  }\n\n  /**\n   * Static Parse Method\n   */\n  static parse(tokens, options) {\n    const parser = new Parser(options);\n    return parser.parse(tokens);\n  };\n\n  /**\n   * Parse Loop\n   */\n  parse(tokens) {\n    this.inline = new InlineLexer(tokens.links, this.options);\n    // use an InlineLexer with a TextRenderer to extract pure text\n    this.inlineText = new InlineLexer(\n      tokens.links,\n      merge({}, this.options, { renderer: new TextRenderer() })\n    );\n    this.tokens = tokens.reverse();\n\n    let out = '';\n    while (this.next()) {\n      out += this.tok();\n    }\n\n    return out;\n  };\n\n  /**\n   * Next Token\n   */\n  next() {\n    this.token = this.tokens.pop();\n    return this.token;\n  };\n\n  /**\n   * Preview Next Token\n   */\n  peek() {\n    return this.tokens[this.tokens.length - 1] || 0;\n  };\n\n  /**\n   * Parse Text Tokens\n   */\n  parseText() {\n    let body = this.token.text;\n\n    while (this.peek().type === 'text') {\n      body += '\\n' + this.next().text;\n    }\n\n    return this.inline.output(body);\n  };\n\n  /**\n   * Parse Current Token\n   */\n  tok() {\n    let body = '';\n    switch (this.token.type) {\n      case 'space': {\n        return '';\n      }\n      case 'hr': {\n        return this.renderer.hr();\n      }\n      case 'heading': {\n        return this.renderer.heading(\n          this.inline.output(this.token.text),\n          this.token.depth,\n          unescape(this.inlineText.output(this.token.text)),\n          this.slugger);\n      }\n      case 'code': {\n        return this.renderer.code(this.token.text,\n          this.token.lang,\n          this.token.escaped);\n      }\n      case 'table': {\n        let header = '',\n          i,\n          row,\n          cell,\n          j;\n\n        // header\n        cell = '';\n        for (i = 0; i < this.token.header.length; i++) {\n          cell += this.renderer.tablecell(\n            this.inline.output(this.token.header[i]),\n            { header: true, align: this.token.align[i] }\n          );\n        }\n        header += this.renderer.tablerow(cell);\n\n        for (i = 0; i < this.token.cells.length; i++) {\n          row = this.token.cells[i];\n\n          cell = '';\n          for (j = 0; j < row.length; j++) {\n            cell += this.renderer.tablecell(\n              this.inline.output(row[j]),\n              { header: false, align: this.token.align[j] }\n            );\n          }\n\n          body += this.renderer.tablerow(cell);\n        }\n        return this.renderer.table(header, body);\n      }\n      case 'blockquote_start': {\n        body = '';\n\n        while (this.next().type !== 'blockquote_end') {\n          body += this.tok();\n        }\n\n        return this.renderer.blockquote(body);\n      }\n      case 'list_start': {\n        body = '';\n        const ordered = this.token.ordered,\n          start = this.token.start;\n\n        while (this.next().type !== 'list_end') {\n          body += this.tok();\n        }\n\n        return this.renderer.list(body, ordered, start);\n      }\n      case 'list_item_start': {\n        body = '';\n        const loose = this.token.loose;\n        const checked = this.token.checked;\n        const task = this.token.task;\n\n        if (this.token.task) {\n          if (loose) {\n            if (this.peek().type === 'text') {\n              const nextToken = this.peek();\n              nextToken.text = this.renderer.checkbox(checked) + ' ' + nextToken.text;\n            } else {\n              this.tokens.push({\n                type: 'text',\n                text: this.renderer.checkbox(checked)\n              });\n            }\n          } else {\n            body += this.renderer.checkbox(checked);\n          }\n        }\n\n        while (this.next().type !== 'list_item_end') {\n          body += !loose && this.token.type === 'text'\n            ? this.parseText()\n            : this.tok();\n        }\n        return this.renderer.listitem(body, task, checked);\n      }\n      case 'html': {\n        // TODO parse inline content if parameter markdown=1\n        return this.renderer.html(this.token.text);\n      }\n      case 'paragraph': {\n        return this.renderer.paragraph(this.inline.output(this.token.text));\n      }\n      case 'text': {\n        return this.renderer.paragraph(this.parseText());\n      }\n      default: {\n        const errMsg = 'Token with \"' + this.token.type + '\" type was not found.';\n        if (this.options.silent) {\n          console.log(errMsg);\n        } else {\n          throw new Error(errMsg);\n        }\n      }\n    }\n  };\n};\n","const { defaults } = require('./defaults.js');\nconst {\n  cleanUrl,\n  escape\n} = require('./helpers.js');\n\n/**\n * Renderer\n */\nmodule.exports = class Renderer {\n  constructor(options) {\n    this.options = options || defaults;\n  }\n\n  code(code, infostring, escaped) {\n    const lang = (infostring || '').match(/\\S*/)[0];\n    if (this.options.highlight) {\n      const out = this.options.highlight(code, lang);\n      if (out != null && out !== code) {\n        escaped = true;\n        code = out;\n      }\n    }\n\n    if (!lang) {\n      return '<pre><code>'\n        + (escaped ? code : escape(code, true))\n        + '</code></pre>';\n    }\n\n    return '<pre><code class=\"'\n      + this.options.langPrefix\n      + escape(lang, true)\n      + '\">'\n      + (escaped ? code : escape(code, true))\n      + '</code></pre>\\n';\n  };\n\n  blockquote(quote) {\n    return '<blockquote>\\n' + quote + '</blockquote>\\n';\n  };\n\n  html(html) {\n    return html;\n  };\n\n  heading(text, level, raw, slugger) {\n    if (this.options.headerIds) {\n      return '<h'\n        + level\n        + ' id=\"'\n        + this.options.headerPrefix\n        + slugger.slug(raw)\n        + '\">'\n        + text\n        + '</h'\n        + level\n        + '>\\n';\n    }\n    // ignore IDs\n    return '<h' + level + '>' + text + '</h' + level + '>\\n';\n  };\n\n  hr() {\n    return this.options.xhtml ? '<hr/>\\n' : '<hr>\\n';\n  };\n\n  list(body, ordered, start) {\n    const type = ordered ? 'ol' : 'ul',\n      startatt = (ordered && start !== 1) ? (' start=\"' + start + '\"') : '';\n    return '<' + type + startatt + '>\\n' + body + '</' + type + '>\\n';\n  };\n\n  listitem(text) {\n    return '<li>' + text + '</li>\\n';\n  };\n\n  checkbox(checked) {\n    return '<input '\n      + (checked ? 'checked=\"\" ' : '')\n      + 'disabled=\"\" type=\"checkbox\"'\n      + (this.options.xhtml ? ' /' : '')\n      + '> ';\n  };\n\n  paragraph(text) {\n    return '<p>' + text + '</p>\\n';\n  };\n\n  table(header, body) {\n    if (body) body = '<tbody>' + body + '</tbody>';\n\n    return '<table>\\n'\n      + '<thead>\\n'\n      + header\n      + '</thead>\\n'\n      + body\n      + '</table>\\n';\n  };\n\n  tablerow(content) {\n    return '<tr>\\n' + content + '</tr>\\n';\n  };\n\n  tablecell(content, flags) {\n    const type = flags.header ? 'th' : 'td';\n    const tag = flags.align\n      ? '<' + type + ' align=\"' + flags.align + '\">'\n      : '<' + type + '>';\n    return tag + content + '</' + type + '>\\n';\n  };\n\n  // span level renderer\n  strong(text) {\n    return '<strong>' + text + '</strong>';\n  };\n\n  em(text) {\n    return '<em>' + text + '</em>';\n  };\n\n  codespan(text) {\n    return '<code>' + text + '</code>';\n  };\n\n  br() {\n    return this.options.xhtml ? '<br/>' : '<br>';\n  };\n\n  del(text) {\n    return '<del>' + text + '</del>';\n  };\n\n  link(href, title, text) {\n    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);\n    if (href === null) {\n      return text;\n    }\n    let out = '<a href=\"' + escape(href) + '\"';\n    if (title) {\n      out += ' title=\"' + title + '\"';\n    }\n    out += '>' + text + '</a>';\n    return out;\n  };\n\n  image(href, title, text) {\n    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);\n    if (href === null) {\n      return text;\n    }\n\n    let out = '<img src=\"' + href + '\" alt=\"' + text + '\"';\n    if (title) {\n      out += ' title=\"' + title + '\"';\n    }\n    out += this.options.xhtml ? '/>' : '>';\n    return out;\n  };\n\n  text(text) {\n    return text;\n  };\n};\n","/**\n * Slugger generates header id\n */\nmodule.exports = class Slugger {\n  constructor() {\n    this.seen = {};\n  }\n\n  /**\n   * Convert string to unique id\n   */\n  slug(value) {\n    let slug = value\n      .toLowerCase()\n      .trim()\n      .replace(/[\\u2000-\\u206F\\u2E00-\\u2E7F\\\\'!\"#$%&()*+,./:;<=>?@[\\]^`{|}~]/g, '')\n      .replace(/\\s/g, '-');\n\n    if (this.seen.hasOwnProperty(slug)) {\n      const originalSlug = slug;\n      do {\n        this.seen[originalSlug]++;\n        slug = originalSlug + '-' + this.seen[originalSlug];\n      } while (this.seen.hasOwnProperty(slug));\n    }\n    this.seen[slug] = 0;\n\n    return slug;\n  };\n};\n","/**\n * TextRenderer\n * returns only the textual part of the token\n */\nmodule.exports = class TextRenderer {\n  // no need for block level renderers\n  strong(text) {\n    return text;\n  }\n\n  em(text) {\n    return text;\n  }\n\n  codespan(text) {\n    return text;\n  }\n\n  del(text) {\n    return text;\n  }\n\n  text(text) {\n    return text;\n  }\n\n  link(href, title, text) {\n    return '' + text;\n  }\n\n  image(href, title, text) {\n    return '' + text;\n  }\n\n  br() {\n    return '';\n  }\n};\n","function getDefaults() {\n  return {\n    baseUrl: null,\n    breaks: false,\n    gfm: true,\n    headerIds: true,\n    headerPrefix: '',\n    highlight: null,\n    langPrefix: 'language-',\n    mangle: true,\n    pedantic: false,\n    renderer: null,\n    sanitize: false,\n    sanitizer: null,\n    silent: false,\n    smartLists: false,\n    smartypants: false,\n    xhtml: false\n  };\n}\n\nfunction changeDefaults(newDefaults) {\n  module.exports.defaults = newDefaults;\n}\n\nmodule.exports = {\n  defaults: getDefaults(),\n  getDefaults,\n  changeDefaults\n};\n","/**\n * Helpers\n */\nconst escapeTest = /[&<>\"']/;\nconst escapeReplace = /[&<>\"']/g;\nconst escapeTestNoEncode = /[<>\"']|&(?!#?\\w+;)/;\nconst escapeReplaceNoEncode = /[<>\"']|&(?!#?\\w+;)/g;\nconst escapeReplacements = {\n  '&': '&amp;',\n  '<': '&lt;',\n  '>': '&gt;',\n  '\"': '&quot;',\n  \"'\": '&#39;'\n};\nconst getEscapeReplacement = (ch) => escapeReplacements[ch];\nfunction escape(html, encode) {\n  if (encode) {\n    if (escapeTest.test(html)) {\n      return html.replace(escapeReplace, getEscapeReplacement);\n    }\n  } else {\n    if (escapeTestNoEncode.test(html)) {\n      return html.replace(escapeReplaceNoEncode, getEscapeReplacement);\n    }\n  }\n\n  return html;\n}\n\nconst unescapeTest = /&(#(?:\\d+)|(?:#x[0-9A-Fa-f]+)|(?:\\w+));?/ig;\n\nfunction unescape(html) {\n  // explicitly match decimal, hex, and named HTML entities\n  return html.replace(unescapeTest, (_, n) => {\n    n = n.toLowerCase();\n    if (n === 'colon') return ':';\n    if (n.charAt(0) === '#') {\n      return n.charAt(1) === 'x'\n        ? String.fromCharCode(parseInt(n.substring(2), 16))\n        : String.fromCharCode(+n.substring(1));\n    }\n    return '';\n  });\n}\n\nconst caret = /(^|[^\\[])\\^/g;\nfunction edit(regex, opt) {\n  regex = regex.source || regex;\n  opt = opt || '';\n  const obj = {\n    replace: (name, val) => {\n      val = val.source || val;\n      val = val.replace(caret, '$1');\n      regex = regex.replace(name, val);\n      return obj;\n    },\n    getRegex: () => {\n      return new RegExp(regex, opt);\n    }\n  };\n  return obj;\n}\n\nconst nonWordAndColonTest = /[^\\w:]/g;\nconst originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;\nfunction cleanUrl(sanitize, base, href) {\n  if (sanitize) {\n    let prot;\n    try {\n      prot = decodeURIComponent(unescape(href))\n        .replace(nonWordAndColonTest, '')\n        .toLowerCase();\n    } catch (e) {\n      return null;\n    }\n    if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {\n      return null;\n    }\n  }\n  if (base && !originIndependentUrl.test(href)) {\n    href = resolveUrl(base, href);\n  }\n  try {\n    href = encodeURI(href).replace(/%25/g, '%');\n  } catch (e) {\n    return null;\n  }\n  return href;\n}\n\nconst baseUrls = {};\nconst justDomain = /^[^:]+:\\/*[^/]*$/;\nconst protocol = /^([^:]+:)[\\s\\S]*$/;\nconst domain = /^([^:]+:\\/*[^/]*)[\\s\\S]*$/;\n\nfunction resolveUrl(base, href) {\n  if (!baseUrls[' ' + base]) {\n    // we can ignore everything in base after the last slash of its path component,\n    // but we might need to add _that_\n    // https://tools.ietf.org/html/rfc3986#section-3\n    if (justDomain.test(base)) {\n      baseUrls[' ' + base] = base + '/';\n    } else {\n      baseUrls[' ' + base] = rtrim(base, '/', true);\n    }\n  }\n  base = baseUrls[' ' + base];\n  const relativeBase = base.indexOf(':') === -1;\n\n  if (href.substring(0, 2) === '//') {\n    if (relativeBase) {\n      return href;\n    }\n    return base.replace(protocol, '$1') + href;\n  } else if (href.charAt(0) === '/') {\n    if (relativeBase) {\n      return href;\n    }\n    return base.replace(domain, '$1') + href;\n  } else {\n    return base + href;\n  }\n}\n\nconst noopTest = { exec: function noopTest() {} };\n\nfunction merge(obj) {\n  let i = 1,\n    target,\n    key;\n\n  for (; i < arguments.length; i++) {\n    target = arguments[i];\n    for (key in target) {\n      if (Object.prototype.hasOwnProperty.call(target, key)) {\n        obj[key] = target[key];\n      }\n    }\n  }\n\n  return obj;\n}\n\nfunction splitCells(tableRow, count) {\n  // ensure that every cell-delimiting pipe has a space\n  // before it to distinguish it from an escaped pipe\n  const row = tableRow.replace(/\\|/g, (match, offset, str) => {\n      let escaped = false,\n        curr = offset;\n      while (--curr >= 0 && str[curr] === '\\\\') escaped = !escaped;\n      if (escaped) {\n        // odd number of slashes means | is escaped\n        // so we leave it alone\n        return '|';\n      } else {\n        // add space before unescaped |\n        return ' |';\n      }\n    }),\n    cells = row.split(/ \\|/);\n  let i = 0;\n\n  if (cells.length > count) {\n    cells.splice(count);\n  } else {\n    while (cells.length < count) cells.push('');\n  }\n\n  for (; i < cells.length; i++) {\n    // leading or trailing whitespace is ignored per the gfm spec\n    cells[i] = cells[i].trim().replace(/\\\\\\|/g, '|');\n  }\n  return cells;\n}\n\n// Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').\n// /c*$/ is vulnerable to REDOS.\n// invert: Remove suffix of non-c chars instead. Default falsey.\nfunction rtrim(str, c, invert) {\n  const l = str.length;\n  if (l === 0) {\n    return '';\n  }\n\n  // Length of suffix matching the invert condition.\n  let suffLen = 0;\n\n  // Step left until we fail to match the invert condition.\n  while (suffLen < l) {\n    const currChar = str.charAt(l - suffLen - 1);\n    if (currChar === c && !invert) {\n      suffLen++;\n    } else if (currChar !== c && invert) {\n      suffLen++;\n    } else {\n      break;\n    }\n  }\n\n  return str.substr(0, l - suffLen);\n}\n\nfunction findClosingBracket(str, b) {\n  if (str.indexOf(b[1]) === -1) {\n    return -1;\n  }\n  const l = str.length;\n  let level = 0,\n    i = 0;\n  for (; i < l; i++) {\n    if (str[i] === '\\\\') {\n      i++;\n    } else if (str[i] === b[0]) {\n      level++;\n    } else if (str[i] === b[1]) {\n      level--;\n      if (level < 0) {\n        return i;\n      }\n    }\n  }\n  return -1;\n}\n\nfunction checkSanitizeDeprecation(opt) {\n  if (opt && opt.sanitize && !opt.silent) {\n    console.warn('marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. Read more here: https://marked.js.org/#/USING_ADVANCED.md#options');\n  }\n}\n\nmodule.exports = {\n  escape,\n  unescape,\n  edit,\n  cleanUrl,\n  resolveUrl,\n  noopTest,\n  merge,\n  splitCells,\n  rtrim,\n  findClosingBracket,\n  checkSanitizeDeprecation\n};\n","const Lexer = require('./Lexer.js');\nconst Parser = require('./Parser.js');\nconst Renderer = require('./Renderer.js');\nconst TextRenderer = require('./TextRenderer.js');\nconst InlineLexer = require('./InlineLexer.js');\nconst Slugger = require('./Slugger.js');\nconst {\n  merge,\n  checkSanitizeDeprecation,\n  escape\n} = require('./helpers.js');\nconst {\n  getDefaults,\n  changeDefaults,\n  defaults\n} = require('./defaults.js');\n\n/**\n * Marked\n */\nfunction marked(src, opt, callback) {\n  // throw error in case of non string input\n  if (typeof src === 'undefined' || src === null) {\n    throw new Error('marked(): input parameter is undefined or null');\n  }\n  if (typeof src !== 'string') {\n    throw new Error('marked(): input parameter is of type '\n      + Object.prototype.toString.call(src) + ', string expected');\n  }\n\n  if (callback || typeof opt === 'function') {\n    if (!callback) {\n      callback = opt;\n      opt = null;\n    }\n\n    opt = merge({}, marked.defaults, opt || {});\n    checkSanitizeDeprecation(opt);\n    const highlight = opt.highlight;\n    let tokens,\n      pending,\n      i = 0;\n\n    try {\n      tokens = Lexer.lex(src, opt);\n    } catch (e) {\n      return callback(e);\n    }\n\n    pending = tokens.length;\n\n    const done = function(err) {\n      if (err) {\n        opt.highlight = highlight;\n        return callback(err);\n      }\n\n      let out;\n\n      try {\n        out = Parser.parse(tokens, opt);\n      } catch (e) {\n        err = e;\n      }\n\n      opt.highlight = highlight;\n\n      return err\n        ? callback(err)\n        : callback(null, out);\n    };\n\n    if (!highlight || highlight.length < 3) {\n      return done();\n    }\n\n    delete opt.highlight;\n\n    if (!pending) return done();\n\n    for (; i < tokens.length; i++) {\n      (function(token) {\n        if (token.type !== 'code') {\n          return --pending || done();\n        }\n        return highlight(token.text, token.lang, function(err, code) {\n          if (err) return done(err);\n          if (code == null || code === token.text) {\n            return --pending || done();\n          }\n          token.text = code;\n          token.escaped = true;\n          --pending || done();\n        });\n      })(tokens[i]);\n    }\n\n    return;\n  }\n  try {\n    opt = merge({}, marked.defaults, opt || {});\n    checkSanitizeDeprecation(opt);\n    return Parser.parse(Lexer.lex(src, opt), opt);\n  } catch (e) {\n    e.message += '\\nPlease report this to https://github.com/markedjs/marked.';\n    if ((opt || marked.defaults).silent) {\n      return '<p>An error occurred:</p><pre>'\n        + escape(e.message + '', true)\n        + '</pre>';\n    }\n    throw e;\n  }\n}\n\n/**\n * Options\n */\n\nmarked.options =\nmarked.setOptions = function(opt) {\n  merge(marked.defaults, opt);\n  changeDefaults(marked.defaults);\n  return marked;\n};\n\nmarked.getDefaults = getDefaults;\n\nmarked.defaults = defaults;\n\n/**\n * Expose\n */\n\nmarked.Parser = Parser;\nmarked.parser = Parser.parse;\n\nmarked.Renderer = Renderer;\nmarked.TextRenderer = TextRenderer;\n\nmarked.Lexer = Lexer;\nmarked.lexer = Lexer.lex;\n\nmarked.InlineLexer = InlineLexer;\nmarked.inlineLexer = InlineLexer.output;\n\nmarked.Slugger = Slugger;\n\nmarked.parse = marked;\n\nmodule.exports = marked;\n","const {\n  noopTest,\n  edit,\n  merge\n} = require('./helpers.js');\n\n/**\n * Block-Level Grammar\n */\nconst block = {\n  newline: /^\\n+/,\n  code: /^( {4}[^\\n]+\\n*)+/,\n  fences: /^ {0,3}(`{3,}|~{3,})([^`~\\n]*)\\n(?:|([\\s\\S]*?)\\n)(?: {0,3}\\1[~`]* *(?:\\n+|$)|$)/,\n  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$)/,\n  heading: /^ {0,3}(#{1,6}) +([^\\n]*?)(?: +#+)? *(?:\\n+|$)/,\n  blockquote: /^( {0,3}> ?(paragraph|[^\\n]*)(?:\\n|$))+/,\n  list: /^( {0,3})(bull) [\\s\\S]+?(?:hr|def|\\n{2,}(?! )(?!\\1bull )\\n*|\\s*$)/,\n  html: '^ {0,3}(?:' // optional indentation\n    + '<(script|pre|style)[\\\\s>][\\\\s\\\\S]*?(?:</\\\\1>[^\\\\n]*\\\\n+|$)' // (1)\n    + '|comment[^\\\\n]*(\\\\n+|$)' // (2)\n    + '|<\\\\?[\\\\s\\\\S]*?\\\\?>\\\\n*' // (3)\n    + '|<![A-Z][\\\\s\\\\S]*?>\\\\n*' // (4)\n    + '|<!\\\\[CDATA\\\\[[\\\\s\\\\S]*?\\\\]\\\\]>\\\\n*' // (5)\n    + '|</?(tag)(?: +|\\\\n|/?>)[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (6)\n    + '|<(?!script|pre|style)([a-z][\\\\w-]*)(?:attribute)*? */?>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (7) open tag\n    + '|</(?!script|pre|style)[a-z][\\\\w-]*\\\\s*>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (7) closing tag\n    + ')',\n  def: /^ {0,3}\\[(label)\\]: *\\n? *<?([^\\s>]+)>?(?:(?: +\\n? *| *\\n *)(title))? *(?:\\n+|$)/,\n  nptable: noopTest,\n  table: noopTest,\n  lheading: /^([^\\n]+)\\n {0,3}(=+|-+) *(?:\\n+|$)/,\n  // regex template, placeholders will be replaced according to different paragraph\n  // interruption rules of commonmark and the original markdown spec:\n  _paragraph: /^([^\\n]+(?:\\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\\n]+)*)/,\n  text: /^[^\\n]+/\n};\n\nblock._label = /(?!\\s*\\])(?:\\\\[\\[\\]]|[^\\[\\]])+/;\nblock._title = /(?:\"(?:\\\\\"?|[^\"\\\\])*\"|'[^'\\n]*(?:\\n[^'\\n]+)*\\n?'|\\([^()]*\\))/;\nblock.def = edit(block.def)\n  .replace('label', block._label)\n  .replace('title', block._title)\n  .getRegex();\n\nblock.bullet = /(?:[*+-]|\\d{1,9}\\.)/;\nblock.item = /^( *)(bull) ?[^\\n]*(?:\\n(?!\\1bull ?)[^\\n]*)*/;\nblock.item = edit(block.item, 'gm')\n  .replace(/bull/g, block.bullet)\n  .getRegex();\n\nblock.list = edit(block.list)\n  .replace(/bull/g, block.bullet)\n  .replace('hr', '\\\\n+(?=\\\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\\\* *){3,})(?:\\\\n+|$))')\n  .replace('def', '\\\\n+(?=' + block.def.source + ')')\n  .getRegex();\n\nblock._tag = 'address|article|aside|base|basefont|blockquote|body|caption'\n  + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'\n  + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'\n  + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'\n  + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'\n  + '|track|ul';\nblock._comment = /<!--(?!-?>)[\\s\\S]*?-->/;\nblock.html = edit(block.html, 'i')\n  .replace('comment', block._comment)\n  .replace('tag', block._tag)\n  .replace('attribute', / +[a-zA-Z:_][\\w.:-]*(?: *= *\"[^\"\\n]*\"| *= *'[^'\\n]*'| *= *[^\\s\"'=<>`]+)?/)\n  .getRegex();\n\nblock.paragraph = edit(block._paragraph)\n  .replace('hr', block.hr)\n  .replace('heading', ' {0,3}#{1,6} +')\n  .replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs\n  .replace('blockquote', ' {0,3}>')\n  .replace('fences', ' {0,3}(?:`{3,}|~{3,})[^`\\\\n]*\\\\n')\n  .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt\n  .replace('html', '</?(?:tag)(?: +|\\\\n|/?>)|<(?:script|pre|style|!--)')\n  .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks\n  .getRegex();\n\nblock.blockquote = edit(block.blockquote)\n  .replace('paragraph', block.paragraph)\n  .getRegex();\n\n/**\n * Normal Block Grammar\n */\n\nblock.normal = merge({}, block);\n\n/**\n * GFM Block Grammar\n */\n\nblock.gfm = merge({}, block.normal, {\n  nptable: /^ *([^|\\n ].*\\|.*)\\n *([-:]+ *\\|[-| :]*)(?:\\n((?:.*[^>\\n ].*(?:\\n|$))*)\\n*|$)/,\n  table: /^ *\\|(.+)\\n *\\|?( *[-:]+[-| :]*)(?:\\n((?: *[^>\\n ].*(?:\\n|$))*)\\n*|$)/\n});\n\n/**\n * Pedantic grammar (original John Gruber's loose markdown specification)\n */\n\nblock.pedantic = merge({}, block.normal, {\n  html: edit(\n    '^ *(?:comment *(?:\\\\n|\\\\s*$)'\n    + '|<(tag)[\\\\s\\\\S]+?</\\\\1> *(?:\\\\n{2,}|\\\\s*$)' // closed tag\n    + '|<tag(?:\"[^\"]*\"|\\'[^\\']*\\'|\\\\s[^\\'\"/>\\\\s]*)*?/?> *(?:\\\\n{2,}|\\\\s*$))')\n    .replace('comment', block._comment)\n    .replace(/tag/g, '(?!(?:'\n      + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'\n      + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'\n      + '\\\\b)\\\\w+(?!:|[^\\\\w\\\\s@]*@)\\\\b')\n    .getRegex(),\n  def: /^ *\\[([^\\]]+)\\]: *<?([^\\s>]+)>?(?: +([\"(][^\\n]+[\")]))? *(?:\\n+|$)/,\n  heading: /^ *(#{1,6}) *([^\\n]+?) *(?:#+ *)?(?:\\n+|$)/,\n  fences: noopTest, // fences not supported\n  paragraph: edit(block.normal._paragraph)\n    .replace('hr', block.hr)\n    .replace('heading', ' *#{1,6} *[^\\n]')\n    .replace('lheading', block.lheading)\n    .replace('blockquote', ' {0,3}>')\n    .replace('|fences', '')\n    .replace('|list', '')\n    .replace('|html', '')\n    .getRegex()\n});\n\n/**\n * Inline-Level Grammar\n */\nconst inline = {\n  escape: /^\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/,\n  autolink: /^<(scheme:[^\\s\\x00-\\x1f<>]*|email)>/,\n  url: noopTest,\n  tag: '^comment'\n    + '|^</[a-zA-Z][\\\\w:-]*\\\\s*>' // self-closing tag\n    + '|^<[a-zA-Z][\\\\w-]*(?:attribute)*?\\\\s*/?>' // open tag\n    + '|^<\\\\?[\\\\s\\\\S]*?\\\\?>' // processing instruction, e.g. <?php ?>\n    + '|^<![a-zA-Z]+\\\\s[\\\\s\\\\S]*?>' // declaration, e.g. <!DOCTYPE html>\n    + '|^<!\\\\[CDATA\\\\[[\\\\s\\\\S]*?\\\\]\\\\]>', // CDATA section\n  link: /^!?\\[(label)\\]\\(\\s*(href)(?:\\s+(title))?\\s*\\)/,\n  reflink: /^!?\\[(label)\\]\\[(?!\\s*\\])((?:\\\\[\\[\\]]?|[^\\[\\]\\\\])+)\\]/,\n  nolink: /^!?\\[(?!\\s*\\])((?:\\[[^\\[\\]]*\\]|\\\\[\\[\\]]|[^\\[\\]])*)\\](?:\\[\\])?/,\n  strong: /^__([^\\s_])__(?!_)|^\\*\\*([^\\s*])\\*\\*(?!\\*)|^__([^\\s][\\s\\S]*?[^\\s])__(?!_)|^\\*\\*([^\\s][\\s\\S]*?[^\\s])\\*\\*(?!\\*)/,\n  em: /^_([^\\s_])_(?!_)|^\\*([^\\s*<\\[])\\*(?!\\*)|^_([^\\s<][\\s\\S]*?[^\\s_])_(?!_|[^\\spunctuation])|^_([^\\s_<][\\s\\S]*?[^\\s])_(?!_|[^\\spunctuation])|^\\*([^\\s<\"][\\s\\S]*?[^\\s\\*])\\*(?!\\*|[^\\spunctuation])|^\\*([^\\s*\"<\\[][\\s\\S]*?[^\\s])\\*(?!\\*)/,\n  code: /^(`+)([^`]|[^`][\\s\\S]*?[^`])\\1(?!`)/,\n  br: /^( {2,}|\\\\)\\n(?!\\s*$)/,\n  del: noopTest,\n  text: /^(`+|[^`])(?:[\\s\\S]*?(?:(?=[\\\\<!\\[`*]|\\b_|$)|[^ ](?= {2,}\\n))|(?= {2,}\\n))/\n};\n\n// list of punctuation marks from common mark spec\n// without ` and ] to workaround Rule 17 (inline code blocks/links)\ninline._punctuation = '!\"#$%&\\'()*+,\\\\-./:;<=>?@\\\\[^_{|}~';\ninline.em = edit(inline.em).replace(/punctuation/g, inline._punctuation).getRegex();\n\ninline._escapes = /\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/g;\n\ninline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;\ninline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;\ninline.autolink = edit(inline.autolink)\n  .replace('scheme', inline._scheme)\n  .replace('email', inline._email)\n  .getRegex();\n\ninline._attribute = /\\s+[a-zA-Z:_][\\w.:-]*(?:\\s*=\\s*\"[^\"]*\"|\\s*=\\s*'[^']*'|\\s*=\\s*[^\\s\"'=<>`]+)?/;\n\ninline.tag = edit(inline.tag)\n  .replace('comment', block._comment)\n  .replace('attribute', inline._attribute)\n  .getRegex();\n\ninline._label = /(?:\\[[^\\[\\]]*\\]|\\\\.|`[^`]*`|[^\\[\\]\\\\`])*?/;\ninline._href = /<(?:\\\\[<>]?|[^\\s<>\\\\])*>|[^\\s\\x00-\\x1f]*/;\ninline._title = /\"(?:\\\\\"?|[^\"\\\\])*\"|'(?:\\\\'?|[^'\\\\])*'|\\((?:\\\\\\)?|[^)\\\\])*\\)/;\n\ninline.link = edit(inline.link)\n  .replace('label', inline._label)\n  .replace('href', inline._href)\n  .replace('title', inline._title)\n  .getRegex();\n\ninline.reflink = edit(inline.reflink)\n  .replace('label', inline._label)\n  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\"v-md-fullscreen\": _vm.fullScreen\n        }\n      ]\n    },\n    [\n      _vm.toolbars.length > 0\n        ? _c(\n            \"div\",\n            { staticClass: \"v-md-toolbar\" },\n            _vm._l(_vm.toolbars, function(group) {\n              return _c(\n                \"div\",\n                { staticClass: \"btn-group mr-3\", attrs: { role: \"group\" } },\n                _vm._l(group, function(i) {\n                  return _c(\n                    \"button\",\n                    {\n                      class: \"btn btn-\" + _vm.theme,\n                      attrs: {\n                        type: \"button\",\n                        title: i.title,\n                        disabled: _vm.preview && !i.ready\n                      },\n                      on: {\n                        click: function($event) {\n                          return _vm.command(i.cmd)\n                        }\n                      }\n                    },\n                    [_c(\"i\", { class: i.ico })]\n                  )\n                }),\n                0\n              )\n            }),\n            0\n          )\n        : _vm._e(),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        {\n          staticClass: \"v-md-wrapper\",\n          on: {\n            click: function($event) {\n              return _vm.editor.focus()\n            }\n          }\n        },\n        [\n          _c(\"textarea\", {\n            staticClass: \"v-md-editor\",\n            style: _vm.styles,\n            attrs: { id: _vm.id }\n          }),\n          _vm._v(\" \"),\n          _vm.preview\n            ? _c(\"div\", {\n                staticClass: \"v-md-preview\",\n                domProps: { innerHTML: _vm._s(_vm.html) }\n              })\n            : _vm._e()\n        ]\n      )\n    ]\n  )\n}\nvar staticRenderFns = []\nrender._withStripped = true\n\nexport { render, staticRenderFns }","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functional component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? [].concat(existing, hook)\n        : [hook]\n    }\n  }\n\n  return {\n    exports: scriptExports,\n    options: options\n  }\n}\n","import { render, staticRenderFns } from \"./editor.vue?vue&type=template&id=7c83f806&\"\nimport script from \"./editor.vue?vue&type=script&lang=js&\"\nexport * from \"./editor.vue?vue&type=script&lang=js&\"\n\n\n/* normalize component */\nimport normalizer from \"!../node_modules/vue-loader/lib/runtime/componentNormalizer.js\"\nvar component = normalizer(\n  script,\n  render,\n  staticRenderFns,\n  false,\n  null,\n  null,\n  null\n  \n)\n\n/* hot reload */\nif (module.hot) {\n  var api = require(\"/Users/nasa8x/nasa/projects/nodejs/v-markdown-editor/node_modules/vue-hot-reload-api/dist/index.js\")\n  api.install(require('vue'))\n  if (api.compatible) {\n    module.hot.accept()\n    if (!api.isRecorded('7c83f806')) {\n      api.createRecord('7c83f806', component.options)\n    } else {\n      api.reload('7c83f806', component.options)\n    }\n    module.hot.accept(\"./editor.vue?vue&type=template&id=7c83f806&\", function () {\n      api.rerender('7c83f806', {\n        render: render,\n        staticRenderFns: staticRenderFns\n      })\n    })\n  }\n}\ncomponent.options.__file = \"src/editor.vue\"\nexport default component.exports","import mod from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=script&lang=js&\"; export default mod; export * from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=script&lang=js&\"","export * from \"-!../node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=template&id=7c83f806&\"","// extracted by mini-css-extract-plugin","\nimport 'codemirror/lib/codemirror.css';\nimport './index.css';\nimport Editor from './editor.vue';\n\n\nvar MarkdownEditor = {\n    install: function (Vue) {\n        if (Vue.__md_editor_installed) {\n            return;\n        }\n\n        Vue.__md_editor_installed = true;\n\n        Vue.component('markdown-editor', Editor);\n    }\n};\n\nif (typeof window !== 'undefined' && window.Vue) {\n    Vue.use(MarkdownEditor);\n}\n\nexport default MarkdownEditor;"],"sourceRoot":""}
\ No newline at end of file
diff --git a/dist/v-markdown-editor.min.js b/dist/v-markdown-editor.min.js
index d57ee5f..56efbd0 100644
--- a/dist/v-markdown-editor.min.js
+++ b/dist/v-markdown-editor.min.js
@@ -1 +1 @@
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p=Math.min(h.pos,u+5e3);i(p,c),u=p}}var wt=!1,Ct=!1;function St(e,t,n){this.marker=e,this.from=t,this.to=n}function Lt(e,t){if(e)for(var n=0;n<e.length;++n){var r=e[n];if(r.marker==t)return r}}function Tt(e,t){for(var n,r=0;r<e.length;++r)e[r]!=t&&(n||(n=[])).push(e[r]);return n}function Mt(e,t){if(t.full)return null;var n=Je(e,t.from.line)&&Ve(e,t.from.line).markedSpans,r=Je(e,t.to.line)&&Ve(e,t.to.line).markedSpans;if(!n&&!r)return null;var i=t.from.ch,o=t.to.ch,l=0==nt(t.from,t.to),a=function(e,t,n){var r;if(e)for(var i=0;i<e.length;++i){var o=e[i],l=o.marker;if(null==o.from||(l.inclusiveLeft?o.from<=t:o.from<t)||o.from==t&&"bookmark"==l.type&&(!n||!o.marker.insertLeft)){var a=null==o.to||(l.inclusiveRight?o.to>=t:o.to>t);(r||(r=[])).push(new St(l,o.from,a?null:o.to))}}return r}(n,i,l),s=function(e,t,n){var r;if(e)for(var i=0;i<e.length;++i){var o=e[i],l=o.marker;if(null==o.to||(l.inclusiveRight?o.to>=t:o.to>t)||o.from==t&&"bookmark"==l.type&&(!n||o.marker.insertLeft)){var a=null==o.from||(l.inclusiveLeft?o.from<=t:o.from<t);(r||(r=[])).push(new St(l,a?null:o.from-t,null==o.to?null:o.to-t))}}return r}(r,o,l),u=1==t.text.length,c=X(t.text).length+(u?i:0);if(a)for(var h=0;h<a.length;++h){var d=a[h];if(null==d.to){var f=Lt(s,d.marker);f?u&&(d.to=null==f.to?null:f.to+c):d.to=i}}if(s)for(var p=0;p<s.length;++p){var m=s[p];null!=m.to&&(m.to+=c),null==m.from?Lt(a,m.marker)||(m.from=c,u&&(a||(a=[])).push(m)):(m.from+=c,u&&(a||(a=[])).push(m))}a&&(a=At(a)),s&&s!=a&&(s=At(s));var g=[a];if(!u){var v,x=t.text.length-2;if(x>0&&a)for(var y=0;y<a.length;++y)null==a[y].to&&(v||(v=[])).push(new St(a[y].marker,null,null));for(var b=0;b<x;++b)g.push(v);g.push(s)}return g}function At(e){for(var t=0;t<e.length;++t){var n=e[t];null!=n.from&&n.from==n.to&&!1!==n.marker.clearWhenEmpty&&e.splice(t--,1)}return e.length?e:null}function Dt(e){var t=e.markedSpans;if(t){for(var n=0;n<t.length;++n)t[n].marker.detachLine(e);e.markedSpans=null}}function Nt(e,t){if(t){for(var n=0;n<t.length;++n)t[n].marker.attachLine(e);e.markedSpans=t}}function Ft(e){return e.inclusiveLeft?-1:0}function Ot(e){return e.inclusiveRight?1:0}function Et(e,t){var n=e.lines.length-t.lines.length;if(0!=n)return n;var r=e.find(),i=t.find(),o=nt(r.from,i.from)||Ft(e)-Ft(t);if(o)return-o;var l=nt(r.to,i.to)||Ot(e)-Ot(t);return l||t.id-e.id}function zt(e,t){var n,r=Ct&&e.markedSpans;if(r)for(var i=void 0,o=0;o<r.length;++o)(i=r[o]).marker.collapsed&&null==(t?i.from:i.to)&&(!n||Et(n,i.marker)<0)&&(n=i.marker);return n}function Wt(e){return zt(e,!0)}function Pt(e){return zt(e,!1)}function _t(e,t){var n,r=Ct&&e.markedSpans;if(r)for(var i=0;i<r.length;++i){var o=r[i];o.marker.collapsed&&(null==o.from||o.from<t)&&(null==o.to||o.to>t)&&(!n||Et(n,o.marker)<0)&&(n=o.marker)}return n}function Ht(e,t,n,r,i){var o=Ve(e,t),l=Ct&&o.markedSpans;if(l)for(var a=0;a<l.length;++a){var s=l[a];if(s.marker.collapsed){var u=s.marker.find(0),c=nt(u.from,n)||Ft(s.marker)-Ft(i),h=nt(u.to,r)||Ot(s.marker)-Ot(i);if(!(c>=0&&h<=0||c<=0&&h>=0)&&(c<=0&&(s.marker.inclusiveRight&&i.inclusiveLeft?nt(u.to,n)>=0:nt(u.to,n)>0)||c>=0&&(s.marker.inclusiveRight&&i.inclusiveLeft?nt(u.from,r)<=0:nt(u.from,r)<0)))return!0}}}function It(e){for(var t;t=Wt(e);)e=t.find(-1,!0).line;return e}function Rt(e,t){var n=Ve(e,t),r=It(n);return n==r?t:Ye(r)}function Bt(e,t){if(t>e.lastLine())return t;var n,r=Ve(e,t);if(!jt(e,r))return t;for(;n=Pt(r);)r=n.find(1,!0).line;return Ye(r)+1}function jt(e,t){var n=Ct&&t.markedSpans;if(n)for(var r=void 0,i=0;i<n.length;++i)if((r=n[i]).marker.collapsed){if(null==r.from)return!0;if(!r.marker.widgetNode&&0==r.from&&r.marker.inclusiveLeft&&$t(e,t,r))return!0}}function $t(e,t,n){if(null==n.to){var r=n.marker.find(1,!0);return $t(e,r.line,Lt(r.line.markedSpans,n.marker))}if(n.marker.inclusiveRight&&n.to==t.text.length)return!0;for(var i=void 0,o=0;o<t.markedSpans.length;++o)if((i=t.markedSpans[o]).marker.collapsed&&!i.marker.widgetNode&&i.from==n.to&&(null==i.to||i.to!=n.from)&&(i.marker.inclusiveLeft||n.marker.inclusiveRight)&&$t(e,t,i))return!0}function qt(e){for(var t=0,n=(e=It(e)).parent,r=0;r<n.lines.length;++r){var i=n.lines[r];if(i==e)break;t+=i.height}for(var o=n.parent;o;o=(n=o).parent)for(var l=0;l<o.children.length;++l){var a=o.children[l];if(a==n)break;t+=a.height}return t}function Gt(e){if(0==e.height)return 0;for(var t,n=e.text.length,r=e;t=Wt(r);){var i=t.find(0,!0);r=i.from.line,n+=i.from.ch-i.to.ch}for(r=e;t=Pt(r);){var o=t.find(0,!0);n-=r.text.length-o.from.ch,n+=(r=o.to.line).text.length-o.to.ch}return n}function Ut(e){var t=e.display,n=e.doc;t.maxLine=Ve(n,n.first),t.maxLineLength=Gt(t.maxLine),t.maxLineChanged=!0,n.iter((function(e){var n=Gt(e);n>t.maxLineLength&&(t.maxLineLength=n,t.maxLine=e)}))}var Vt=function(e,t,n){this.text=e,Nt(this,t),this.height=n?n(this):1};function Kt(e){e.parent=null,Dt(e)}Vt.prototype.lineNo=function(){return Ye(this)},ye(Vt);var Xt={},Zt={};function Yt(e,t){if(!e||/^\s*$/.test(e))return null;var n=t.addModeClass?Zt:Xt;return n[e]||(n[e]=e.replace(/\S+/g,"cm-$&"))}function Qt(e,t){var n=N("span",null,null,s?"padding-right: .1px":null),r={pre:N("pre",[n],"CodeMirror-line"),content:n,col:0,pos:0,cm:e,trailingSpace:!1,splitSpaces:e.getOption("lineWrapping")};t.measure={};for(var i=0;i<=(t.rest?t.rest.length:0);i++){var o=i?t.rest[i-1]:t.line,l=void 0;r.pos=0,r.addToken=en,Ne(e.display.measure)&&(l=ce(o,e.doc.direction))&&(r.addToken=tn(r.addToken,l)),r.map=[],rn(o,r,ft(e,o,t!=e.display.externalMeasured&&Ye(o))),o.styleClasses&&(o.styleClasses.bgClass&&(r.bgClass=z(o.styleClasses.bgClass,r.bgClass||"")),o.styleClasses.textClass&&(r.textClass=z(o.styleClasses.textClass,r.textClass||""))),0==r.map.length&&r.map.push(0,0,r.content.appendChild(De(e.display.measure))),0==i?(t.measure.map=r.map,t.measure.cache={}):((t.measure.maps||(t.measure.maps=[])).push(r.map),(t.measure.caches||(t.measure.caches=[])).push({}))}if(s){var a=r.content.lastChild;(/\bcm-tab\b/.test(a.className)||a.querySelector&&a.querySelector(".cm-tab"))&&(r.content.className="cm-tab-wrap-hack")}return me(e,"renderLine",e,t.line,r.pre),r.pre.className&&(r.textClass=z(r.pre.className,r.textClass||"")),r}function Jt(e){var t=D("span","•","cm-invalidchar");return t.title="\\u"+e.charCodeAt(0).toString(16),t.setAttribute("aria-label",t.title),t}function en(e,t,n,r,i,o,s){if(t){var u,c=e.splitSpaces?function(e,t){if(e.length>1&&!/  /.test(e))return e;for(var n=t,r="",i=0;i<e.length;i++){var o=e.charAt(i);" "!=o||!n||i!=e.length-1&&32!=e.charCodeAt(i+1)||(o=" "),r+=o,n=" "==o}return r}(t,e.trailingSpace):t,h=e.cm.state.specialChars,d=!1;if(h.test(t)){u=document.createDocumentFragment();for(var f=0;;){h.lastIndex=f;var p=h.exec(t),m=p?p.index-f:t.length-f;if(m){var g=document.createTextNode(c.slice(f,f+m));l&&a<9?u.appendChild(D("span",[g])):u.appendChild(g),e.map.push(e.pos,e.pos+m,g),e.col+=m,e.pos+=m}if(!p)break;f+=m+1;var v=void 0;if("\t"==p[0]){var x=e.cm.options.tabSize,y=x-e.col%x;(v=u.appendChild(D("span",K(y),"cm-tab"))).setAttribute("role","presentation"),v.setAttribute("cm-text","\t"),e.col+=y}else"\r"==p[0]||"\n"==p[0]?((v=u.appendChild(D("span","\r"==p[0]?"␍":"␤","cm-invalidchar"))).setAttribute("cm-text",p[0]),e.col+=1):((v=e.cm.options.specialCharPlaceholder(p[0])).setAttribute("cm-text",p[0]),l&&a<9?u.appendChild(D("span",[v])):u.appendChild(v),e.col+=1);e.map.push(e.pos,e.pos+1,v),e.pos++}}else e.col+=t.length,u=document.createTextNode(c),e.map.push(e.pos,e.pos+t.length,u),l&&a<9&&(d=!0),e.pos+=t.length;if(e.trailingSpace=32==c.charCodeAt(t.length-1),n||r||i||d||o){var b=n||"";r&&(b+=r),i&&(b+=i);var k=D("span",[u],b,o);if(s)for(var w in s)s.hasOwnProperty(w)&&"style"!=w&&"class"!=w&&k.setAttribute(w,s[w]);return e.content.appendChild(k)}e.content.appendChild(u)}}function tn(e,t){return function(n,r,i,o,l,a,s){i=i?i+" cm-force-border":"cm-force-border";for(var u=n.pos,c=u+r.length;;){for(var h=void 0,d=0;d<t.length&&!((h=t[d]).to>u&&h.from<=u);d++);if(h.to>=c)return e(n,r,i,o,l,a,s);e(n,r.slice(0,h.to-u),i,o,null,a,s),o=null,r=r.slice(h.to-u),u=h.to}}}function nn(e,t,n,r){var i=!r&&n.widgetNode;i&&e.map.push(e.pos,e.pos+t,i),!r&&e.cm.display.input.needsContentAttribute&&(i||(i=e.content.appendChild(document.createElement("span"))),i.setAttribute("cm-marker",n.id)),i&&(e.cm.display.input.setUneditable(i),e.content.appendChild(i)),e.pos+=t,e.trailingSpace=!1}function rn(e,t,n){var r=e.markedSpans,i=e.text,o=0;if(r)for(var l,a,s,u,c,h,d,f=i.length,p=0,m=1,g="",v=0;;){if(v==p){s=u=c=a="",d=null,h=null,v=1/0;for(var x=[],y=void 0,b=0;b<r.length;++b){var k=r[b],w=k.marker;if("bookmark"==w.type&&k.from==p&&w.widgetNode)x.push(w);else if(k.from<=p&&(null==k.to||k.to>p||w.collapsed&&k.to==p&&k.from==p)){if(null!=k.to&&k.to!=p&&v>k.to&&(v=k.to,u=""),w.className&&(s+=" "+w.className),w.css&&(a=(a?a+";":"")+w.css),w.startStyle&&k.from==p&&(c+=" 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n&&n.line==t.line?(e.display.externalMeasured=null,t.measure=n.measure,n.built):Qt(e,t)}function pn(e,t){var n=t.text.className,r=fn(e,t);t.text==t.node&&(t.node=r.pre),t.text.parentNode.replaceChild(r.pre,t.text),t.text=r.pre,r.bgClass!=t.bgClass||r.textClass!=t.textClass?(t.bgClass=r.bgClass,t.textClass=r.textClass,mn(e,t)):n&&(t.text.className=n)}function mn(e,t){!function(e,t){var n=t.bgClass?t.bgClass+" "+(t.line.bgClass||""):t.line.bgClass;if(n&&(n+=" CodeMirror-linebackground"),t.background)n?t.background.className=n:(t.background.parentNode.removeChild(t.background),t.background=null);else if(n){var r=dn(t);t.background=r.insertBefore(D("div",null,n),r.firstChild),e.display.input.setUneditable(t.background)}}(e,t),t.line.wrapClass?dn(t).className=t.line.wrapClass:t.node!=t.text&&(t.node.className="");var n=t.textClass?t.textClass+" "+(t.line.textClass||""):t.line.textClass;t.text.className=n||""}function gn(e,t,n,r){if(t.gutter&&(t.node.removeChild(t.gutter),t.gutter=null),t.gutterBackground&&(t.node.removeChild(t.gutterBackground),t.gutterBackground=null),t.line.gutterClass){var i=dn(t);t.gutterBackground=D("div",null,"CodeMirror-gutter-background "+t.line.gutterClass,"left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px; width: "+r.gutterTotalWidth+"px"),e.display.input.setUneditable(t.gutterBackground),i.insertBefore(t.gutterBackground,t.text)}var o=t.line.gutterMarkers;if(e.options.lineNumbers||o){var l=dn(t),a=t.gutter=D("div",null,"CodeMirror-gutter-wrapper","left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px");if(e.display.input.setUneditable(a),l.insertBefore(a,t.text),t.line.gutterClass&&(a.className+=" "+t.line.gutterClass),!e.options.lineNumbers||o&&o["CodeMirror-linenumbers"]||(t.lineNumber=a.appendChild(D("div",et(e.options,n),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+r.gutterLeft["CodeMirror-linenumbers"]+"px; width: 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n=Se(t);n!=e.wrapper;n=n.parentNode)if(!n||1==n.nodeType&&"true"==n.getAttribute("cm-ignore-events")||n.parentNode==e.sizer&&n!=e.mover)return!0}function Sn(e){return e.lineSpace.offsetTop}function Ln(e){return e.mover.offsetHeight-e.lineSpace.offsetHeight}function Tn(e){if(e.cachedPaddingH)return e.cachedPaddingH;var t=A(e.measure,D("pre","x","CodeMirror-line-like")),n=window.getComputedStyle?window.getComputedStyle(t):t.currentStyle,r={left:parseInt(n.paddingLeft),right:parseInt(n.paddingRight)};return isNaN(r.left)||isNaN(r.right)||(e.cachedPaddingH=r),r}function Mn(e){return B-e.display.nativeBarWidth}function An(e){return e.display.scroller.clientWidth-Mn(e)-e.display.barWidth}function Dn(e){return e.display.scroller.clientHeight-Mn(e)-e.display.barHeight}function Nn(e,t,n){if(e.line==t)return{map:e.measure.map,cache:e.measure.cache};for(var r=0;r<e.rest.length;r++)if(e.rest[r]==t)return{map:e.measure.maps[r],cache:e.measure.caches[r]};for(var 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h=(e.options.lineWrapping?rr:nr)(e,t,n,o,c,r,i);a=(u=1!=h.level)?h.from:h.to-1,s=u?h.to:h.from-1}var d,f,p=null,m=null,g=le((function(t){var n=zn(e,o,t);return n.top+=l,n.bottom+=l,!!er(n,r,i,!1)&&(n.top<=i&&n.left<=r&&(p=t,m=n),!0)}),a,s),v=!1;if(m){var x=r-m.left<m.right-r,y=x==u;g=p+(y?0:1),f=y?"after":"before",d=x?m.left:m.right}else{u||g!=s&&g!=a||g++,f=0==g?"after":g==t.text.length?"before":zn(e,o,g-(u?1:0)).bottom+l<=i==u?"after":"before";var b=Kn(e,tt(n,g,f),"line",t,o);d=b.left,v=i<b.top?-1:i>=b.bottom?1:0}return Zn(n,g=oe(t.text,g,1),f,v,r-d)}function nr(e,t,n,r,i,o,l){var a=le((function(a){var s=i[a],u=1!=s.level;return er(Kn(e,tt(n,u?s.to:s.from,u?"before":"after"),"line",t,r),o,l,!0)}),0,i.length-1),s=i[a];if(a>0){var u=1!=s.level,c=Kn(e,tt(n,u?s.from:s.to,u?"after":"before"),"line",t,r);er(c,o,l,!0)&&c.top>l&&(s=i[a-1])}return s}function rr(e,t,n,r,i,o,l){var a=Qn(e,t,r,l),s=a.begin,u=a.end;/\s/.test(t.text.charAt(u-1))&&u--;for(var c=null,h=null,d=0;d<i.length;d++){var 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a=e.display.gutterSpecs[l].className;n[a]=o.offsetLeft+o.clientLeft+i,r[a]=o.clientWidth}return{fixedPos:ar(t),gutterTotalWidth:t.gutters.offsetWidth,gutterLeft:n,gutterWidth:r,wrapperWidth:t.wrapper.clientWidth}}function ar(e){return e.scroller.getBoundingClientRect().left-e.sizer.getBoundingClientRect().left}function sr(e){var t=ir(e.display),n=e.options.lineWrapping,r=n&&Math.max(5,e.display.scroller.clientWidth/or(e.display)-3);return function(i){if(jt(e.doc,i))return 0;var o=0;if(i.widgets)for(var l=0;l<i.widgets.length;l++)i.widgets[l].height&&(o+=i.widgets[l].height);return n?o+(Math.ceil(i.text.length/r)||1)*t:o+t}}function ur(e){var t=e.doc,n=sr(e);t.iter((function(e){var t=n(e);t!=e.height&&Ze(e,t)}))}function cr(e,t,n,r){var i=e.display;if(!n&&"true"==Se(t).getAttribute("cm-not-content"))return null;var o,l,a=i.lineSpace.getBoundingClientRect();try{o=t.clientX-a.left,l=t.clientY-a.top}catch(t){return null}var s,u=Yn(e,o,l);if(r&&1==u.xRel&&(s=Ve(e.doc,u.line).text).length==u.ch){var c=H(s,s.length,e.options.tabSize)-s.length;u=tt(u.line,Math.max(0,Math.round((o-Tn(e.display).left)/or(e.display))-c))}return u}function hr(e,t){if(t>=e.display.viewTo)return null;if((t-=e.display.viewFrom)<0)return null;for(var n=e.display.view,r=0;r<n.length;r++)if((t-=n[r].size)<0)return r}function dr(e,t,n,r){null==t&&(t=e.doc.first),null==n&&(n=e.doc.first+e.doc.size),r||(r=0);var i=e.display;if(r&&n<i.viewTo&&(null==i.updateLineNumbers||i.updateLineNumbers>t)&&(i.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=i.viewTo)Ct&&Rt(e.doc,t)<i.viewTo&&pr(e);else if(n<=i.viewFrom)Ct&&Bt(e.doc,n+r)>i.viewFrom?pr(e):(i.viewFrom+=r,i.viewTo+=r);else if(t<=i.viewFrom&&n>=i.viewTo)pr(e);else if(t<=i.viewFrom){var o=mr(e,n,n+r,1);o?(i.view=i.view.slice(o.index),i.viewFrom=o.lineN,i.viewTo+=r):pr(e)}else if(n>=i.viewTo){var l=mr(e,t,t,-1);l?(i.view=i.view.slice(0,l.index),i.viewTo=l.lineN):pr(e)}else{var a=mr(e,t,t,-1),s=mr(e,n,n+r,1);a&&s?(i.view=i.view.slice(0,a.index).concat(ln(e,a.lineN,s.lineN)).concat(i.view.slice(s.index)),i.viewTo+=r):pr(e)}var u=i.externalMeasured;u&&(n<u.lineN?u.lineN+=r:t<u.lineN+u.size&&(i.externalMeasured=null))}function fr(e,t,n){e.curOp.viewChanged=!0;var r=e.display,i=e.display.externalMeasured;if(i&&t>=i.lineN&&t<i.lineN+i.size&&(r.externalMeasured=null),!(t<r.viewFrom||t>=r.viewTo)){var o=r.view[hr(e,t)];if(null!=o.node){var l=o.changes||(o.changes=[]);-1==R(l,n)&&l.push(n)}}}function pr(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function mr(e,t,n,r){var i,o=hr(e,t),l=e.display.view;if(!Ct||n==e.doc.first+e.doc.size)return{index:o,lineN:n};for(var a=e.display.viewFrom,s=0;s<o;s++)a+=l[s].size;if(a!=t){if(r>0){if(o==l.length-1)return null;i=a+l[o].size-t,o++}else i=a-t;t+=i,n+=i}for(;Rt(e.doc,n)!=n;){if(o==(r<0?0:l.length-1))return null;n+=r*l[o-(r<0?1:0)].size,o+=r}return{index:o,lineN:n}}function gr(e){for(var t=e.display.view,n=0,r=0;r<t.length;r++){var i=t[r];i.hidden||i.node&&!i.changes||++n}return n}function vr(e){e.display.input.showSelection(e.display.input.prepareSelection())}function xr(e,t){void 0===t&&(t=!0);for(var n=e.doc,r={},i=r.cursors=document.createDocumentFragment(),o=r.selection=document.createDocumentFragment(),l=0;l<n.sel.ranges.length;l++)if(t||l!=n.sel.primIndex){var a=n.sel.ranges[l];if(!(a.from().line>=e.display.viewTo||a.to().line<e.display.viewFrom)){var s=a.empty();(s||e.options.showCursorWhenSelecting)&&yr(e,a.head,i),s||kr(e,a,o)}}return r}function yr(e,t,n){var r=Kn(e,t,"div",null,null,!e.options.singleCursorHeightPerLine),i=n.appendChild(D("div"," ","CodeMirror-cursor"));if(i.style.left=r.left+"px",i.style.top=r.top+"px",i.style.height=Math.max(0,r.bottom-r.top)*e.options.cursorHeight+"px",r.other){var o=n.appendChild(D("div"," ","CodeMirror-cursor CodeMirror-secondarycursor"));o.style.display="",o.style.left=r.other.left+"px",o.style.top=r.other.top+"px",o.style.height=.85*(r.other.bottom-r.other.top)+"px"}}function br(e,t){return e.top-t.top||e.left-t.left}function kr(e,t,n){var r=e.display,i=e.doc,o=document.createDocumentFragment(),l=Tn(e.display),a=l.left,s=Math.max(r.sizerWidth,An(e)-r.sizer.offsetLeft)-l.right,u="ltr"==i.direction;function c(e,t,n,r){t<0&&(t=0),t=Math.round(t),r=Math.round(r),o.appendChild(D("div",null,"CodeMirror-selected","position: absolute; left: "+e+"px;\n                             top: "+t+"px; width: "+(null==n?s-e:n)+"px;\n                             height: "+(r-t)+"px"))}function h(t,n,r){var o,l,h=Ve(i,t),d=h.text.length;function f(n,r){return Vn(e,tt(t,n),"div",h,r)}function p(t,n,r){var i=Jn(e,h,null,t),o="ltr"==n==("after"==r)?"left":"right";return f("after"==r?i.begin:i.end-(/\s/.test(h.text.charAt(i.end-1))?2:1),o)[o]}var m=ce(h,i.direction);return function(e,t,n,r){if(!e)return r(t,n,"ltr",0);for(var i=!1,o=0;o<e.length;++o){var l=e[o];(l.from<n&&l.to>t||t==n&&l.to==t)&&(r(Math.max(l.from,t),Math.min(l.to,n),1==l.level?"rtl":"ltr",o),i=!0)}i||r(t,n,"ltr")}(m,n||0,null==r?d:r,(function(e,t,i,h){var g="ltr"==i,v=f(e,g?"left":"right"),x=f(t-1,g?"right":"left"),y=null==n&&0==e,b=null==r&&t==d,k=0==h,w=!m||h==m.length-1;if(x.top-v.top<=3){var C=(u?b:y)&&w,S=(u?y:b)&&k?a:(g?v:x).left,L=C?s:(g?x:v).right;c(S,v.top,L-S,v.bottom)}else{var T,M,A,D;g?(T=u&&y&&k?a:v.left,M=u?s:p(e,i,"before"),A=u?a:p(t,i,"after"),D=u&&b&&w?s:x.right):(T=u?p(e,i,"before"):a,M=!u&&y&&k?s:v.right,A=!u&&b&&w?a:x.left,D=u?p(t,i,"after"):s),c(T,v.top,M-T,v.bottom),v.bottom<x.top&&c(a,v.bottom,null,x.top),c(A,x.top,D-A,x.bottom)}(!o||br(v,o)<0)&&(o=v),br(x,o)<0&&(o=x),(!l||br(v,l)<0)&&(l=v),br(x,l)<0&&(l=x)})),{start:o,end:l}}var d=t.from(),f=t.to();if(d.line==f.line)h(d.line,d.ch,f.ch);else{var p=Ve(i,d.line),m=Ve(i,f.line),g=It(p)==It(m),v=h(d.line,d.ch,g?p.text.length+1:null).end,x=h(f.line,g?0:null,f.ch).start;g&&(v.top<x.top-2?(c(v.right,v.top,null,v.bottom),c(a,x.top,x.left,x.bottom)):c(v.right,v.top,x.left-v.right,v.bottom)),v.bottom<x.top&&c(a,v.bottom,null,x.top)}n.appendChild(o)}function wr(e){if(e.state.focused){var t=e.display;clearInterval(t.blinker);var n=!0;t.cursorDiv.style.visibility="",e.options.cursorBlinkRate>0?t.blinker=setInterval((function(){return t.cursorDiv.style.visibility=(n=!n)?"":"hidden"}),e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function Cr(e){e.state.focused||(e.display.input.focus(),Lr(e))}function Sr(e){e.state.delayingBlurEvent=!0,setTimeout((function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,Tr(e))}),100)}function Lr(e,t){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(me(e,"focus",e,t),e.state.focused=!0,E(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),s&&setTimeout((function(){return e.display.input.reset(!0)}),20)),e.display.input.receivedFocus()),wr(e))}function Tr(e,t){e.state.delayingBlurEvent||(e.state.focused&&(me(e,"blur",e,t),e.state.focused=!1,T(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout((function(){e.state.focused||(e.display.shift=!1)}),150))}function Mr(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=0;r<t.view.length;r++){var i=t.view[r],o=e.options.lineWrapping,s=void 0,u=0;if(!i.hidden){if(l&&a<8){var c=i.node.offsetTop+i.node.offsetHeight;s=c-n,n=c}else{var h=i.node.getBoundingClientRect();s=h.bottom-h.top,!o&&i.text.firstChild&&(u=i.text.firstChild.getBoundingClientRect().right-h.left-1)}var d=i.line.height-s;if((d>.005||d<-.005)&&(Ze(i.line,s),Ar(i.line),i.rest))for(var f=0;f<i.rest.length;f++)Ar(i.rest[f]);if(u>e.display.sizerWidth){var p=Math.ceil(u/or(e.display));p>e.display.maxLineLength&&(e.display.maxLineLength=p,e.display.maxLine=i.line,e.display.maxLineChanged=!0)}}}}function Ar(e){if(e.widgets)for(var t=0;t<e.widgets.length;++t){var n=e.widgets[t],r=n.node.parentNode;r&&(n.height=r.offsetHeight)}}function Dr(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop;r=Math.floor(r-Sn(e));var i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=Qe(t,r),l=Qe(t,i);if(n&&n.ensure){var a=n.ensure.from.line,s=n.ensure.to.line;a<o?(o=a,l=Qe(t,qt(Ve(t,a))+e.wrapper.clientHeight)):Math.min(s,t.lastLine())>=l&&(o=Qe(t,qt(Ve(t,s))-e.wrapper.clientHeight),l=s)}return{from:o,to:Math.max(l,o+1)}}function Nr(e,t){var n=e.display,r=ir(e.display);t.top<0&&(t.top=0);var i=e.curOp&&null!=e.curOp.scrollTop?e.curOp.scrollTop:n.scroller.scrollTop,o=Dn(e),l={};t.bottom-t.top>o&&(t.bottom=t.top+o);var a=e.doc.height+Ln(n),s=t.top<r,u=t.bottom>a-r;if(t.top<i)l.scrollTop=s?0:t.top;else if(t.bottom>i+o){var c=Math.min(t.top,(u?a:t.bottom)-o);c!=i&&(l.scrollTop=c)}var h=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:n.scroller.scrollLeft,d=An(e)-(e.options.fixedGutter?n.gutters.offsetWidth:0),f=t.right-t.left>d;return f&&(t.right=t.left+d),t.left<10?l.scrollLeft=0:t.left<h?l.scrollLeft=Math.max(0,t.left-(f?0:10)):t.right>d+h-3&&(l.scrollLeft=t.right+(f?0:10)-d),l}function Fr(e,t){null!=t&&(zr(e),e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc.scrollTop:e.curOp.scrollTop)+t)}function Or(e){zr(e);var t=e.getCursor();e.curOp.scrollToPos={from:t,to:t,margin:e.options.cursorScrollMargin}}function Er(e,t,n){null==t&&null==n||zr(e),null!=t&&(e.curOp.scrollLeft=t),null!=n&&(e.curOp.scrollTop=n)}function zr(e){var t=e.curOp.scrollToPos;t&&(e.curOp.scrollToPos=null,Wr(e,Xn(e,t.from),Xn(e,t.to),t.margin))}function Wr(e,t,n,r){var i=Nr(e,{left:Math.min(t.left,n.left),top:Math.min(t.top,n.top)-r,right:Math.max(t.right,n.right),bottom:Math.max(t.bottom,n.bottom)+r});Er(e,i.scrollLeft,i.scrollTop)}function Pr(e,t){Math.abs(e.doc.scrollTop-t)<2||(n||si(e,{top:t}),_r(e,t,!0),n&&si(e),ri(e,100))}function _r(e,t,n){t=Math.min(e.display.scroller.scrollHeight-e.display.scroller.clientHeight,t),(e.display.scroller.scrollTop!=t||n)&&(e.doc.scrollTop=t,e.display.scrollbars.setScrollTop(t),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t))}function Hr(e,t,n,r){t=Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth),(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)&&!r||(e.doc.scrollLeft=t,hi(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function Ir(e){var t=e.display,n=t.gutters.offsetWidth,r=Math.round(e.doc.height+Ln(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:r,scrollHeight:r+Mn(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}var Rr=function(e,t,n){this.cm=n;var r=this.vert=D("div",[D("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),i=this.horiz=D("div",[D("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");r.tabIndex=i.tabIndex=-1,e(r),e(i),de(r,"scroll",(function(){r.clientHeight&&t(r.scrollTop,"vertical")})),de(i,"scroll",(function(){i.clientWidth&&t(i.scrollLeft,"horizontal")})),this.checkedZeroWidth=!1,l&&a<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")};Rr.prototype.update=function(e){var t=e.scrollWidth>e.clientWidth+1,n=e.scrollHeight>e.clientHeight+1,r=e.nativeBarWidth;if(n){this.vert.style.display="block",this.vert.style.bottom=t?r+"px":"0";var i=e.viewHeight-(t?r:0);this.vert.firstChild.style.height=Math.max(0,e.scrollHeight-e.clientHeight+i)+"px"}else this.vert.style.display="",this.vert.firstChild.style.height="0";if(t){this.horiz.style.display="block",this.horiz.style.right=n?r+"px":"0",this.horiz.style.left=e.barLeft+"px";var o=e.viewWidth-e.barLeft-(n?r:0);this.horiz.firstChild.style.width=Math.max(0,e.scrollWidth-e.clientWidth+o)+"px"}else this.horiz.style.display="",this.horiz.firstChild.style.width="0";return!this.checkedZeroWidth&&e.clientHeight>0&&(0==r&&this.zeroWidthHack(),this.checkedZeroWidth=!0),{right:n?r:0,bottom:t?r:0}},Rr.prototype.setScrollLeft=function(e){this.horiz.scrollLeft!=e&&(this.horiz.scrollLeft=e),this.disableHoriz&&this.enableZeroWidthBar(this.horiz,this.disableHoriz,"horiz")},Rr.prototype.setScrollTop=function(e){this.vert.scrollTop!=e&&(this.vert.scrollTop=e),this.disableVert&&this.enableZeroWidthBar(this.vert,this.disableVert,"vert")},Rr.prototype.zeroWidthHack=function(){var e=x&&!f?"12px":"18px";this.horiz.style.height=this.vert.style.width=e,this.horiz.style.pointerEvents=this.vert.style.pointerEvents="none",this.disableHoriz=new I,this.disableVert=new I},Rr.prototype.enableZeroWidthBar=function(e,t,n){e.style.pointerEvents="auto",t.set(1e3,(function r(){var i=e.getBoundingClientRect();("vert"==n?document.elementFromPoint(i.right-1,(i.top+i.bottom)/2):document.elementFromPoint((i.right+i.left)/2,i.bottom-1))!=e?e.style.pointerEvents="none":t.set(1e3,r)}))},Rr.prototype.clear=function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)};var Br=function(){};function jr(e,t){t||(t=Ir(e));var n=e.display.barWidth,r=e.display.barHeight;$r(e,t);for(var i=0;i<4&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&Mr(e),$r(e,Ir(e)),n=e.display.barWidth,r=e.display.barHeight}function $r(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",n.heightForcer.style.borderBottom=r.bottom+"px solid transparent",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}Br.prototype.update=function(){return{bottom:0,right:0}},Br.prototype.setScrollLeft=function(){},Br.prototype.setScrollTop=function(){},Br.prototype.clear=function(){};var qr={native:Rr,null:Br};function Gr(e){e.display.scrollbars&&(e.display.scrollbars.clear(),e.display.scrollbars.addClass&&T(e.display.wrapper,e.display.scrollbars.addClass)),e.display.scrollbars=new qr[e.options.scrollbarStyle]((function(t){e.display.wrapper.insertBefore(t,e.display.scrollbarFiller),de(t,"mousedown",(function(){e.state.focused&&setTimeout((function(){return e.display.input.focus()}),0)})),t.setAttribute("cm-not-content","true")}),(function(t,n){"horizontal"==n?Hr(e,t):Pr(e,t)}),e),e.display.scrollbars.addClass&&E(e.display.wrapper,e.display.scrollbars.addClass)}var Ur=0;function Vr(e){var t;e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:0,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Ur},t=e.curOp,an?an.ops.push(t):t.ownsGroup=an={ops:[t],delayedCallbacks:[]}}function Kr(e){var t=e.curOp;t&&function(e,t){var n=e.ownsGroup;if(n)try{!function(e){var t=e.delayedCallbacks,n=0;do{for(;n<t.length;n++)t[n].call(null);for(var r=0;r<e.ops.length;r++){var i=e.ops[r];if(i.cursorActivityHandlers)for(;i.cursorActivityCalled<i.cursorActivityHandlers.length;)i.cursorActivityHandlers[i.cursorActivityCalled++].call(null,i.cm)}}while(n<t.length)}(n)}finally{an=null,t(n)}}(t,(function(e){for(var t=0;t<e.ops.length;t++)e.ops[t].cm.curOp=null;!function(e){for(var t=e.ops,n=0;n<t.length;n++)Xr(t[n]);for(var r=0;r<t.length;r++)(i=t[r]).updatedDisplay=i.mustUpdate&&li(i.cm,i.update);for(var i,o=0;o<t.length;o++)Zr(t[o]);for(var l=0;l<t.length;l++)Yr(t[l]);for(var a=0;a<t.length;a++)Qr(t[a])}(e)}))}function Xr(e){var t=e.cm,n=t.display;!function(e){var t=e.display;!t.scrollbarsClipped&&t.scroller.offsetWidth&&(t.nativeBarWidth=t.scroller.offsetWidth-t.scroller.clientWidth,t.heightForcer.style.height=Mn(e)+"px",t.sizer.style.marginBottom=-t.nativeBarWidth+"px",t.sizer.style.borderRightWidth=Mn(e)+"px",t.scrollbarsClipped=!0)}(t),e.updateMaxLine&&Ut(t),e.mustUpdate=e.viewChanged||e.forceUpdate||null!=e.scrollTop||e.scrollToPos&&(e.scrollToPos.from.line<n.viewFrom||e.scrollToPos.to.line>=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new oi(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function Zr(e){var t=e.cm,n=t.display;e.updatedDisplay&&Mr(t),e.barMeasure=Ir(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Fn(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Mn(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-An(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}function Yr(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeft<t.doc.scrollLeft&&Hr(t,Math.min(t.display.scroller.scrollLeft,e.maxScrollLeft),!0),t.display.maxLineChanged=!1);var n=e.focus&&e.focus==O();e.preparedSelection&&t.display.input.showSelection(e.preparedSelection,n),(e.updatedDisplay||e.startHeight!=t.doc.height)&&jr(t,e.barMeasure),e.updatedDisplay&&ci(t,e.barMeasure),e.selectionChanged&&wr(t),t.state.focused&&e.updateInput&&t.display.input.reset(e.typing),n&&Cr(e.cm)}function Qr(e){var t=e.cm,n=t.display,r=t.doc;e.updatedDisplay&&ai(t,e.update),null==n.wheelStartX||null==e.scrollTop&&null==e.scrollLeft&&!e.scrollToPos||(n.wheelStartX=n.wheelStartY=null),null!=e.scrollTop&&_r(t,e.scrollTop,e.forceScroll),null!=e.scrollLeft&&Hr(t,e.scrollLeft,!0,!0),e.scrollToPos&&function(e,t){if(!ge(e,"scrollCursorIntoView")){var n=e.display,r=n.sizer.getBoundingClientRect(),i=null;if(t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null!=i&&!p){var o=D("div","​",null,"position: absolute;\n                         top: "+(t.top-n.viewOffset-Sn(e.display))+"px;\n                         height: "+(t.bottom-t.top+Mn(e)+n.barHeight)+"px;\n                         left: "+t.left+"px; width: "+Math.max(2,t.right-t.left)+"px;");e.display.lineSpace.appendChild(o),o.scrollIntoView(i),e.display.lineSpace.removeChild(o)}}}(t,function(e,t,n,r){var i;null==r&&(r=0),e.options.lineWrapping||t!=n||(n="before"==(t=t.ch?tt(t.line,"before"==t.sticky?t.ch-1:t.ch,"after"):t).sticky?tt(t.line,t.ch+1,"before"):t);for(var o=0;o<5;o++){var l=!1,a=Kn(e,t),s=n&&n!=t?Kn(e,n):a,u=Nr(e,i={left:Math.min(a.left,s.left),top:Math.min(a.top,s.top)-r,right:Math.max(a.left,s.left),bottom:Math.max(a.bottom,s.bottom)+r}),c=e.doc.scrollTop,h=e.doc.scrollLeft;if(null!=u.scrollTop&&(Pr(e,u.scrollTop),Math.abs(e.doc.scrollTop-c)>1&&(l=!0)),null!=u.scrollLeft&&(Hr(e,u.scrollLeft),Math.abs(e.doc.scrollLeft-h)>1&&(l=!0)),!l)break}return i}(t,st(r,e.scrollToPos.from),st(r,e.scrollToPos.to),e.scrollToPos.margin));var i=e.maybeHiddenMarkers,o=e.maybeUnhiddenMarkers;if(i)for(var l=0;l<i.length;++l)i[l].lines.length||me(i[l],"hide");if(o)for(var a=0;a<o.length;++a)o[a].lines.length&&me(o[a],"unhide");n.wrapper.offsetHeight&&(r.scrollTop=t.display.scroller.scrollTop),e.changeObjs&&me(t,"changes",t,e.changeObjs),e.update&&e.update.finish()}function Jr(e,t){if(e.curOp)return t();Vr(e);try{return t()}finally{Kr(e)}}function ei(e,t){return function(){if(e.curOp)return t.apply(e,arguments);Vr(e);try{return t.apply(e,arguments)}finally{Kr(e)}}}function ti(e){return function(){if(this.curOp)return e.apply(this,arguments);Vr(this);try{return e.apply(this,arguments)}finally{Kr(this)}}}function ni(e){return function(){var t=this.cm;if(!t||t.curOp)return e.apply(this,arguments);Vr(t);try{return e.apply(this,arguments)}finally{Kr(t)}}}function ri(e,t){e.doc.highlightFrontier<e.display.viewTo&&e.state.highlight.set(t,P(ii,e))}function ii(e){var t=e.doc;if(!(t.highlightFrontier>=e.display.viewTo)){var n=+new Date+e.options.workTime,r=pt(e,t.highlightFrontier),i=[];t.iter(r.line,Math.min(t.first+t.size,e.display.viewTo+500),(function(o){if(r.line>=e.display.viewFrom){var l=o.styles,a=o.text.length>e.options.maxHighlightLength?$e(t.mode,r.state):null,s=dt(e,o,r,!0);a&&(r.state=a),o.styles=s.styles;var u=o.styleClasses,c=s.classes;c?o.styleClasses=c:u&&(o.styleClasses=null);for(var h=!l||l.length!=o.styles.length||u!=c&&(!u||!c||u.bgClass!=c.bgClass||u.textClass!=c.textClass),d=0;!h&&d<l.length;++d)h=l[d]!=o.styles[d];h&&i.push(r.line),o.stateAfter=r.save(),r.nextLine()}else o.text.length<=e.options.maxHighlightLength&&mt(e,o.text,r),o.stateAfter=r.line%5==0?r.save():null,r.nextLine();if(+new Date>n)return ri(e,e.options.workDelay),!0})),t.highlightFrontier=r.line,t.modeFrontier=Math.max(t.modeFrontier,r.line),i.length&&Jr(e,(function(){for(var t=0;t<i.length;t++)fr(e,i[t],"text")}))}}var oi=function(e,t,n){var r=e.display;this.viewport=t,this.visible=Dr(r,e.doc,t),this.editorIsHidden=!r.wrapper.offsetWidth,this.wrapperHeight=r.wrapper.clientHeight,this.wrapperWidth=r.wrapper.clientWidth,this.oldDisplayWidth=An(e),this.force=n,this.dims=lr(e),this.events=[]};function li(e,t){var n=e.display,r=e.doc;if(t.editorIsHidden)return pr(e),!1;if(!t.force&&t.visible.from>=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==gr(e))return!1;di(e)&&(pr(e),t.dims=lr(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),l=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFrom<o&&o-n.viewFrom<20&&(o=Math.max(r.first,n.viewFrom)),n.viewTo>l&&n.viewTo-l<20&&(l=Math.min(i,n.viewTo)),Ct&&(o=Rt(e.doc,o),l=Bt(e.doc,l));var a=o!=n.viewFrom||l!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;!function(e,t,n){var r=e.display;0==r.view.length||t>=r.viewTo||n<=r.viewFrom?(r.view=ln(e,t,n),r.viewFrom=t):(r.viewFrom>t?r.view=ln(e,t,r.viewFrom).concat(r.view):r.viewFrom<t&&(r.view=r.view.slice(hr(e,t))),r.viewFrom=t,r.viewTo<n?r.view=r.view.concat(ln(e,r.viewTo,n)):r.viewTo>n&&(r.view=r.view.slice(0,hr(e,n)))),r.viewTo=n}(e,o,l),n.viewOffset=qt(Ve(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var u=gr(e);if(!a&&0==u&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var c=function(e){if(e.hasFocus())return null;var t=O();if(!t||!F(e.display.lineDiv,t))return null;var n={activeElt:t};if(window.getSelection){var r=window.getSelection();r.anchorNode&&r.extend&&F(e.display.lineDiv,r.anchorNode)&&(n.anchorNode=r.anchorNode,n.anchorOffset=r.anchorOffset,n.focusNode=r.focusNode,n.focusOffset=r.focusOffset)}return n}(e);return u>4&&(n.lineDiv.style.display="none"),function(e,t,n){var r=e.display,i=e.options.lineNumbers,o=r.lineDiv,l=o.firstChild;function a(t){var n=t.nextSibling;return s&&x&&e.display.currentWheelTarget==t?t.style.display="none":t.parentNode.removeChild(t),n}for(var u=r.view,c=r.viewFrom,h=0;h<u.length;h++){var d=u[h];if(d.hidden);else if(d.node&&d.node.parentNode==o){for(;l!=d.node;)l=a(l);var f=i&&null!=t&&t<=c&&d.lineNumber;d.changes&&(R(d.changes,"gutter")>-1&&(f=!1),hn(e,d,c,n)),f&&(M(d.lineNumber),d.lineNumber.appendChild(document.createTextNode(et(e.options,c)))),l=d.node.nextSibling}else{var p=xn(e,d,c,n);o.insertBefore(p,l)}c+=d.size}for(;l;)l=a(l)}(e,n.updateLineNumbers,t.dims),u>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,function(e){if(e&&e.activeElt&&e.activeElt!=O()&&(e.activeElt.focus(),e.anchorNode&&F(document.body,e.anchorNode)&&F(document.body,e.focusNode))){var t=window.getSelection(),n=document.createRange();n.setEnd(e.anchorNode,e.anchorOffset),n.collapse(!1),t.removeAllRanges(),t.addRange(n),t.extend(e.focusNode,e.focusOffset)}}(c),M(n.cursorDiv),M(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,a&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,ri(e,400)),n.updateLineNumbers=null,!0}function ai(e,t){for(var n=t.viewport,r=!0;(r&&e.options.lineWrapping&&t.oldDisplayWidth!=An(e)||(n&&null!=n.top&&(n={top:Math.min(e.doc.height+Ln(e.display)-Dn(e),n.top)}),t.visible=Dr(e.display,e.doc,n),!(t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)))&&li(e,t);r=!1){Mr(e);var i=Ir(e);vr(e),jr(e,i),ci(e,i),t.force=!1}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function si(e,t){var n=new oi(e,t);if(li(e,n)){Mr(e),ai(e,n);var r=Ir(e);vr(e),jr(e,r),ci(e,r),n.finish()}}function ui(e){var t=e.gutters.offsetWidth;e.sizer.style.marginLeft=t+"px"}function ci(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+Mn(e)+"px"}function hi(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=ar(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",l=0;l<n.length;l++)if(!n[l].hidden){e.options.fixedGutter&&(n[l].gutter&&(n[l].gutter.style.left=o),n[l].gutterBackground&&(n[l].gutterBackground.style.left=o));var a=n[l].alignable;if(a)for(var s=0;s<a.length;s++)a[s].style.left=o}e.options.fixedGutter&&(t.gutters.style.left=r+i+"px")}}function di(e){if(!e.options.lineNumbers)return!1;var t=e.doc,n=et(e.options,t.first+t.size-1),r=e.display;if(n.length!=r.lineNumChars){var i=r.measure.appendChild(D("div",[D("div",n)],"CodeMirror-linenumber CodeMirror-gutter-elt")),o=i.firstChild.offsetWidth,l=i.offsetWidth-o;return r.lineGutter.style.width="",r.lineNumInnerWidth=Math.max(o,r.lineGutter.offsetWidth-l)+1,r.lineNumWidth=r.lineNumInnerWidth+l,r.lineNumChars=r.lineNumInnerWidth?n.length:-1,r.lineGutter.style.width=r.lineNumWidth+"px",ui(e.display),!0}return!1}function fi(e,t){for(var n=[],r=!1,i=0;i<e.length;i++){var o=e[i],l=null;if("string"!=typeof o&&(l=o.style,o=o.className),"CodeMirror-linenumbers"==o){if(!t)continue;r=!0}n.push({className:o,style:l})}return t&&!r&&n.push({className:"CodeMirror-linenumbers",style:null}),n}function pi(e){var t=e.gutters,n=e.gutterSpecs;M(t),e.lineGutter=null;for(var r=0;r<n.length;++r){var i=n[r],o=i.className,l=i.style,a=t.appendChild(D("div",null,"CodeMirror-gutter "+o));l&&(a.style.cssText=l),"CodeMirror-linenumbers"==o&&(e.lineGutter=a,a.style.width=(e.lineNumWidth||1)+"px")}t.style.display=n.length?"":"none",ui(e)}function mi(e){pi(e.display),dr(e),hi(e)}function gi(e,t,r,i){var o=this;this.input=r,o.scrollbarFiller=D("div",null,"CodeMirror-scrollbar-filler"),o.scrollbarFiller.setAttribute("cm-not-content","true"),o.gutterFiller=D("div",null,"CodeMirror-gutter-filler"),o.gutterFiller.setAttribute("cm-not-content","true"),o.lineDiv=N("div",null,"CodeMirror-code"),o.selectionDiv=D("div",null,null,"position: relative; z-index: 1"),o.cursorDiv=D("div",null,"CodeMirror-cursors"),o.measure=D("div",null,"CodeMirror-measure"),o.lineMeasure=D("div",null,"CodeMirror-measure"),o.lineSpace=N("div",[o.measure,o.lineMeasure,o.selectionDiv,o.cursorDiv,o.lineDiv],null,"position: relative; outline: none");var u=N("div",[o.lineSpace],"CodeMirror-lines");o.mover=D("div",[u],null,"position: relative"),o.sizer=D("div",[o.mover],"CodeMirror-sizer"),o.sizerWidth=null,o.heightForcer=D("div",null,null,"position: absolute; height: "+B+"px; width: 1px;"),o.gutters=D("div",null,"CodeMirror-gutters"),o.lineGutter=null,o.scroller=D("div",[o.sizer,o.heightForcer,o.gutters],"CodeMirror-scroll"),o.scroller.setAttribute("tabIndex","-1"),o.wrapper=D("div",[o.scrollbarFiller,o.gutterFiller,o.scroller],"CodeMirror"),l&&a<8&&(o.gutters.style.zIndex=-1,o.scroller.style.paddingRight=0),s||n&&v||(o.scroller.draggable=!0),e&&(e.appendChild?e.appendChild(o.wrapper):e(o.wrapper)),o.viewFrom=o.viewTo=t.first,o.reportedViewFrom=o.reportedViewTo=t.first,o.view=[],o.renderedView=null,o.externalMeasured=null,o.viewOffset=0,o.lastWrapHeight=o.lastWrapWidth=0,o.updateLineNumbers=null,o.nativeBarWidth=o.barHeight=o.barWidth=0,o.scrollbarsClipped=!1,o.lineNumWidth=o.lineNumInnerWidth=o.lineNumChars=null,o.alignWidgets=!1,o.cachedCharWidth=o.cachedTextHeight=o.cachedPaddingH=null,o.maxLine=null,o.maxLineLength=0,o.maxLineChanged=!1,o.wheelDX=o.wheelDY=o.wheelStartX=o.wheelStartY=null,o.shift=!1,o.selForContextMenu=null,o.activeTouch=null,o.gutterSpecs=fi(i.gutters,i.lineNumbers),pi(o),r.init(o)}oi.prototype.signal=function(e,t){xe(e,t)&&this.events.push(arguments)},oi.prototype.finish=function(){for(var e=0;e<this.events.length;e++)me.apply(null,this.events[e])};var vi=0,xi=null;function yi(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}}function bi(e){var t=yi(e);return t.x*=xi,t.y*=xi,t}function ki(e,t){var r=yi(t),i=r.x,o=r.y,l=e.display,a=l.scroller,u=a.scrollWidth>a.clientWidth,c=a.scrollHeight>a.clientHeight;if(i&&u||o&&c){if(o&&x&&s)e:for(var d=t.target,f=l.view;d!=a;d=d.parentNode)for(var p=0;p<f.length;p++)if(f[p].node==d){e.display.currentWheelTarget=d;break e}if(i&&!n&&!h&&null!=xi)return o&&c&&Pr(e,Math.max(0,a.scrollTop+o*xi)),Hr(e,Math.max(0,a.scrollLeft+i*xi)),(!o||o&&c)&&be(t),void(l.wheelStartX=null);if(o&&null!=xi){var m=o*xi,g=e.doc.scrollTop,v=g+l.wrapper.clientHeight;m<0?g=Math.max(0,g+m-50):v=Math.min(e.doc.height,v+m+50),si(e,{top:g,bottom:v})}vi<20&&(null==l.wheelStartX?(l.wheelStartX=a.scrollLeft,l.wheelStartY=a.scrollTop,l.wheelDX=i,l.wheelDY=o,setTimeout((function(){if(null!=l.wheelStartX){var e=a.scrollLeft-l.wheelStartX,t=a.scrollTop-l.wheelStartY,n=t&&l.wheelDY&&t/l.wheelDY||e&&l.wheelDX&&e/l.wheelDX;l.wheelStartX=l.wheelStartY=null,n&&(xi=(xi*vi+n)/(vi+1),++vi)}}),200)):(l.wheelDX+=i,l.wheelDY+=o))}}l?xi=-.53:n?xi=15:c?xi=-.7:d&&(xi=-1/3);var wi=function(e,t){this.ranges=e,this.primIndex=t};wi.prototype.primary=function(){return this.ranges[this.primIndex]},wi.prototype.equals=function(e){if(e==this)return!0;if(e.primIndex!=this.primIndex||e.ranges.length!=this.ranges.length)return!1;for(var t=0;t<this.ranges.length;t++){var n=this.ranges[t],r=e.ranges[t];if(!rt(n.anchor,r.anchor)||!rt(n.head,r.head))return!1}return!0},wi.prototype.deepCopy=function(){for(var e=[],t=0;t<this.ranges.length;t++)e[t]=new Ci(it(this.ranges[t].anchor),it(this.ranges[t].head));return new wi(e,this.primIndex)},wi.prototype.somethingSelected=function(){for(var e=0;e<this.ranges.length;e++)if(!this.ranges[e].empty())return!0;return!1},wi.prototype.contains=function(e,t){t||(t=e);for(var n=0;n<this.ranges.length;n++){var r=this.ranges[n];if(nt(t,r.from())>=0&&nt(e,r.to())<=0)return n}return-1};var Ci=function(e,t){this.anchor=e,this.head=t};function Si(e,t,n){var r=e&&e.options.selectionsMayTouch,i=t[n];t.sort((function(e,t){return nt(e.from(),t.from())})),n=R(t,i);for(var o=1;o<t.length;o++){var l=t[o],a=t[o-1],s=nt(a.to(),l.from());if(r&&!l.empty()?s>0:s>=0){var u=lt(a.from(),l.from()),c=ot(a.to(),l.to()),h=a.empty()?l.from()==l.head:a.from()==a.head;o<=n&&--n,t.splice(--o,2,new Ci(h?c:u,h?u:c))}}return new wi(t,n)}function Li(e,t){return new wi([new Ci(e,t||e)],0)}function Ti(e){return e.text?tt(e.from.line+e.text.length-1,X(e.text).length+(1==e.text.length?e.from.ch:0)):e.to}function Mi(e,t){if(nt(e,t.from)<0)return e;if(nt(e,t.to)<=0)return Ti(t);var n=e.line+t.text.length-(t.to.line-t.from.line)-1,r=e.ch;return e.line==t.to.line&&(r+=Ti(t).ch-t.to.ch),tt(n,r)}function Ai(e,t){for(var n=[],r=0;r<e.sel.ranges.length;r++){var i=e.sel.ranges[r];n.push(new Ci(Mi(i.anchor,t),Mi(i.head,t)))}return Si(e.cm,n,e.sel.primIndex)}function Di(e,t,n){return e.line==t.line?tt(n.line,e.ch-t.ch+n.ch):tt(n.line+(e.line-t.line),e.ch)}function Ni(e){e.doc.mode=Re(e.options,e.doc.modeOption),Fi(e)}function Fi(e){e.doc.iter((function(e){e.stateAfter&&(e.stateAfter=null),e.styles&&(e.styles=null)})),e.doc.modeFrontier=e.doc.highlightFrontier=e.doc.first,ri(e,100),e.state.modeGen++,e.curOp&&dr(e)}function Oi(e,t){return 0==t.from.ch&&0==t.to.ch&&""==X(t.text)&&(!e.cm||e.cm.options.wholeLineUpdateBefore)}function Ei(e,t,n,r){function i(e){return n?n[e]:null}function 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n=e,r=e+t;n<r;++n){var i=this.lines[n];this.height-=i.height,Kt(i),un(i,"delete")}this.lines.splice(e,t)},collapse:function(e){e.push.apply(e,this.lines)},insertInner:function(e,t,n){this.height+=n,this.lines=this.lines.slice(0,e).concat(t).concat(this.lines.slice(e));for(var r=0;r<t.length;++r)t[r].parent=this},iterN:function(e,t,n){for(var r=e+t;e<r;++e)if(n(this.lines[e]))return!0}},ko.prototype={chunkSize:function(){return this.size},removeInner:function(e,t){this.size-=t;for(var n=0;n<this.children.length;++n){var r=this.children[n],i=r.chunkSize();if(e<i){var o=Math.min(t,i-e),l=r.height;if(r.removeInner(e,o),this.height-=l-r.height,i==o&&(this.children.splice(n--,1),r.parent=null),0==(t-=o))break;e=0}else e-=i}if(this.size-t<25&&(this.children.length>1||!(this.children[0]instanceof bo))){var a=[];this.collapse(a),this.children=[new bo(a)],this.children[0].parent=this}},collapse:function(e){for(var t=0;t<this.children.length;++t)this.children[t].collapse(e)},insertInner:function(e,t,n){this.size+=t.length,this.height+=n;for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<=o){if(i.insertInner(e,t,n),i.lines&&i.lines.length>50){for(var l=i.lines.length%25+25,a=l;a<i.lines.length;){var s=new bo(i.lines.slice(a,a+=25));i.height-=s.height,this.children.splice(++r,0,s),s.parent=this}i.lines=i.lines.slice(0,l),this.maybeSpill()}break}e-=o}},maybeSpill:function(){if(!(this.children.length<=10)){var e=this;do{var t=new ko(e.children.splice(e.children.length-5,5));if(e.parent){e.size-=t.size,e.height-=t.height;var n=R(e.parent.children,e);e.parent.children.splice(n+1,0,t)}else{var r=new ko(e.children);r.parent=e,e.children=[r,t],e=r}t.parent=e.parent}while(e.children.length>10);e.parent.maybeSpill()}},iterN:function(e,t,n){for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<o){var l=Math.min(t,o-e);if(i.iterN(e,l,n))return!0;if(0==(t-=l))break;e=0}else e-=o}}};var wo=function(e,t,n){if(n)for(var r in n)n.hasOwnProperty(r)&&(this[r]=n[r]);this.doc=e,this.node=t};function Co(e,t,n){qt(t)<(e.curOp&&e.curOp.scrollTop||e.doc.scrollTop)&&Fr(e,n)}wo.prototype.clear=function(){var e=this.doc.cm,t=this.line.widgets,n=this.line,r=Ye(n);if(null!=r&&t){for(var i=0;i<t.length;++i)t[i]==this&&t.splice(i--,1);t.length||(n.widgets=null);var o=wn(this);Ze(n,Math.max(0,n.height-o)),e&&(Jr(e,(function(){Co(e,n,-o),fr(e,r,"widget")})),un(e,"lineWidgetCleared",e,this,r))}},wo.prototype.changed=function(){var e=this,t=this.height,n=this.doc.cm,r=this.line;this.height=null;var i=wn(this)-t;i&&(jt(this.doc,r)||Ze(r,r.height+i),n&&Jr(n,(function(){n.curOp.forceUpdate=!0,Co(n,r,i),un(n,"lineWidgetChanged",n,e,Ye(r))})))},ye(wo);var So=0,Lo=function(e,t){this.lines=[],this.type=t,this.doc=e,this.id=++So};function To(e,t,n,r,i){if(r&&r.shared)return function(e,t,n,r,i){(r=_(r)).shared=!1;var o=[To(e,t,n,r,i)],l=o[0],a=r.widgetNode;return zi(e,(function(e){a&&(r.widgetNode=a.cloneNode(!0)),o.push(To(e,st(e,t),st(e,n),r,i));for(var s=0;s<e.linked.length;++s)if(e.linked[s].isParent)return;l=X(o)})),new Mo(o,l)}(e,t,n,r,i);if(e.cm&&!e.cm.curOp)return ei(e.cm,To)(e,t,n,r,i);var o=new Lo(e,i),l=nt(t,n);if(r&&_(r,o,!1),l>0||0==l&&!1!==o.clearWhenEmpty)return o;if(o.replacedWith&&(o.collapsed=!0,o.widgetNode=N("span",[o.replacedWith],"CodeMirror-widget"),r.handleMouseEvents||o.widgetNode.setAttribute("cm-ignore-events","true"),r.insertLeft&&(o.widgetNode.insertLeft=!0)),o.collapsed){if(Ht(e,t.line,t,n,o)||t.line!=n.line&&Ht(e,n.line,t,n,o))throw new Error("Inserting collapsed marker partially overlapping an existing one");Ct=!0}o.addToHistory&&Ri(e,{from:t,to:n,origin:"markText"},e.sel,NaN);var a,s=t.line,u=e.cm;if(e.iter(s,n.line+1,(function(e){u&&o.collapsed&&!u.options.lineWrapping&&It(e)==u.display.maxLine&&(a=!0),o.collapsed&&s!=t.line&&Ze(e,0),function(e,t){e.markedSpans=e.markedSpans?e.markedSpans.concat([t]):[t],t.marker.attachLine(e)}(e,new St(o,s==t.line?t.ch:null,s==n.line?n.ch:null)),++s})),o.collapsed&&e.iter(t.line,n.line+1,(function(t){jt(e,t)&&Ze(t,0)})),o.clearOnEnter&&de(o,"beforeCursorEnter",(function(){return o.clear()})),o.readOnly&&(wt=!0,(e.history.done.length||e.history.undone.length)&&e.clearHistory()),o.collapsed&&(o.id=++So,o.atomic=!0),u){if(a&&(u.curOp.updateMaxLine=!0),o.collapsed)dr(u,t.line,n.line+1);else if(o.className||o.startStyle||o.endStyle||o.css||o.attributes||o.title)for(var c=t.line;c<=n.line;c++)fr(u,c,"text");o.atomic&&no(u.doc),un(u,"markerAdded",u,o)}return o}Lo.prototype.clear=function(){if(!this.explicitlyCleared){var e=this.doc.cm,t=e&&!e.curOp;if(t&&Vr(e),xe(this,"clear")){var n=this.find();n&&un(this,"clear",n.from,n.to)}for(var r=null,i=null,o=0;o<this.lines.length;++o){var l=this.lines[o],a=Lt(l.markedSpans,this);e&&!this.collapsed?fr(e,Ye(l),"text"):e&&(null!=a.to&&(i=Ye(l)),null!=a.from&&(r=Ye(l))),l.markedSpans=Tt(l.markedSpans,a),null==a.from&&this.collapsed&&!jt(this.doc,l)&&e&&Ze(l,ir(e.display))}if(e&&this.collapsed&&!e.options.lineWrapping)for(var s=0;s<this.lines.length;++s){var u=It(this.lines[s]),c=Gt(u);c>e.display.maxLineLength&&(e.display.maxLine=u,e.display.maxLineLength=c,e.display.maxLineChanged=!0)}null!=r&&e&&this.collapsed&&dr(e,r,i+1),this.lines.length=0,this.explicitlyCleared=!0,this.atomic&&this.doc.cantEdit&&(this.doc.cantEdit=!1,e&&no(e.doc)),e&&un(e,"markerCleared",e,this,r,i),t&&Kr(e),this.parent&&this.parent.clear()}},Lo.prototype.find=function(e,t){var n,r;null==e&&"bookmark"==this.type&&(e=1);for(var i=0;i<this.lines.length;++i){var o=this.lines[i],l=Lt(o.markedSpans,this);if(null!=l.from&&(n=tt(t?o:Ye(o),l.from),-1==e))return n;if(null!=l.to&&(r=tt(t?o:Ye(o),l.to),1==e))return r}return n&&{from:n,to:r}},Lo.prototype.changed=function(){var e=this,t=this.find(-1,!0),n=this,r=this.doc.cm;t&&r&&Jr(r,(function(){var i=t.line,o=Ye(t.line),l=On(r,o);if(l&&(In(l),r.curOp.selectionChanged=r.curOp.forceUpdate=!0),r.curOp.updateMaxLine=!0,!jt(n.doc,i)&&null!=n.height){var a=n.height;n.height=null;var s=wn(n)-a;s&&Ze(i,i.height+s)}un(r,"markerChanged",r,e)}))},Lo.prototype.attachLine=function(e){if(!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;t.maybeHiddenMarkers&&-1!=R(t.maybeHiddenMarkers,this)||(t.maybeUnhiddenMarkers||(t.maybeUnhiddenMarkers=[])).push(this)}this.lines.push(e)},Lo.prototype.detachLine=function(e){if(this.lines.splice(R(this.lines,e),1),!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;(t.maybeHiddenMarkers||(t.maybeHiddenMarkers=[])).push(this)}},ye(Lo);var Mo=function(e,t){this.markers=e,this.primary=t;for(var n=0;n<e.length;++n)e[n].parent=this};function Ao(e){return e.findMarks(tt(e.first,0),e.clipPos(tt(e.lastLine())),(function(e){return e.parent}))}function Do(e){for(var t=function(t){var n=e[t],r=[n.primary.doc];zi(n.primary.doc,(function(e){return r.push(e)}));for(var i=0;i<n.markers.length;i++){var o=n.markers[i];-1==R(r,o.doc)&&(o.parent=null,n.markers.splice(i--,1))}},n=0;n<e.length;n++)t(n)}Mo.prototype.clear=function(){if(!this.explicitlyCleared){this.explicitlyCleared=!0;for(var e=0;e<this.markers.length;++e)this.markers[e].clear();un(this,"clear")}},Mo.prototype.find=function(e,t){return this.primary.find(e,t)},ye(Mo);var No=0,Fo=function(e,t,n,r,i){if(!(this instanceof Fo))return new Fo(e,t,n,r,i);null==n&&(n=0),ko.call(this,[new bo([new Vt("",null)])]),this.first=n,this.scrollTop=this.scrollLeft=0,this.cantEdit=!1,this.cleanGeneration=1,this.modeFrontier=this.highlightFrontier=n;var o=tt(n,0);this.sel=Li(o),this.history=new _i(null),this.id=++No,this.modeOption=t,this.lineSep=r,this.direction="rtl"==i?"rtl":"ltr",this.extend=!1,"string"==typeof e&&(e=this.splitLines(e)),Ei(this,{from:o,to:o,text:e}),Ji(this,Li(o),$)};Fo.prototype=Q(ko.prototype,{constructor:Fo,iter:function(e,t,n){n?this.iterN(e-this.first,t-e,n):this.iterN(this.first,this.first+this.size,e)},insert:function(e,t){for(var n=0,r=0;r<t.length;++r)n+=t[r].height;this.insertInner(e-this.first,t,n)},remove:function(e,t){this.removeInner(e-this.first,t)},getValue:function(e){var t=Xe(this,this.first,this.first+this.size);return!1===e?t:t.join(e||this.lineSeparator())},setValue:ni((function(e){var t=tt(this.first,0),n=this.first+this.size-1;uo(this,{from:t,to:tt(n,Ve(this,n).text.length),text:this.splitLines(e),origin:"setValue",full:!0},!0),this.cm&&Er(this.cm,0,0),Ji(this,Li(t),$)})),replaceRange:function(e,t,n,r){mo(this,e,t=st(this,t),n=n?st(this,n):t,r)},getRange:function(e,t,n){var r=Ke(this,st(this,e),st(this,t));return!1===n?r:r.join(n||this.lineSeparator())},getLine:function(e){var t=this.getLineHandle(e);return t&&t.text},getLineHandle:function(e){if(Je(this,e))return Ve(this,e)},getLineNumber:function(e){return Ye(e)},getLineHandleVisualStart:function(e){return"number"==typeof e&&(e=Ve(this,e)),It(e)},lineCount:function(){return this.size},firstLine:function(){return this.first},lastLine:function(){return this.first+this.size-1},clipPos:function(e){return st(this,e)},getCursor:function(e){var t=this.sel.primary();return null==e||"head"==e?t.head:"anchor"==e?t.anchor:"end"==e||"to"==e||!1===e?t.to():t.from()},listSelections:function(){return this.sel.ranges},somethingSelected:function(){return this.sel.somethingSelected()},setCursor:ni((function(e,t,n){Yi(this,st(this,"number"==typeof e?tt(e,t||0):e),null,n)})),setSelection:ni((function(e,t,n){Yi(this,st(this,e),st(this,t||e),n)})),extendSelection:ni((function(e,t,n){Ki(this,st(this,e),t&&st(this,t),n)})),extendSelections:ni((function(e,t){Xi(this,ut(this,e),t)})),extendSelectionsBy:ni((function(e,t){Xi(this,ut(this,Z(this.sel.ranges,e)),t)})),setSelections:ni((function(e,t,n){if(e.length){for(var r=[],i=0;i<e.length;i++)r[i]=new Ci(st(this,e[i].anchor),st(this,e[i].head));null==t&&(t=Math.min(e.length-1,this.sel.primIndex)),Ji(this,Si(this.cm,r,t),n)}})),addSelection:ni((function(e,t,n){var r=this.sel.ranges.slice(0);r.push(new Ci(st(this,e),st(this,t||e))),Ji(this,Si(this.cm,r,r.length-1),n)})),getSelection:function(e){for(var t,n=this.sel.ranges,r=0;r<n.length;r++){var i=Ke(this,n[r].from(),n[r].to());t=t?t.concat(i):i}return!1===e?t:t.join(e||this.lineSeparator())},getSelections:function(e){for(var t=[],n=this.sel.ranges,r=0;r<n.length;r++){var i=Ke(this,n[r].from(),n[r].to());!1!==e&&(i=i.join(e||this.lineSeparator())),t[r]=i}return t},replaceSelection:function(e,t,n){for(var r=[],i=0;i<this.sel.ranges.length;i++)r[i]=e;this.replaceSelections(r,t,n||"+input")},replaceSelections:ni((function(e,t,n){for(var r=[],i=this.sel,o=0;o<i.ranges.length;o++){var l=i.ranges[o];r[o]={from:l.from(),to:l.to(),text:this.splitLines(e[o]),origin:n}}for(var a=t&&"end"!=t&&function(e,t,n){for(var r=[],i=tt(e.first,0),o=i,l=0;l<t.length;l++){var a=t[l],s=Di(a.from,i,o),u=Di(Ti(a),i,o);if(i=a.to,o=u,"around"==n){var c=e.sel.ranges[l],h=nt(c.head,c.anchor)<0;r[l]=new Ci(h?u:s,h?s:u)}else r[l]=new Ci(s,s)}return new wi(r,e.sel.primIndex)}(this,r,t),s=r.length-1;s>=0;s--)uo(this,r[s]);a?Qi(this,a):this.cm&&Or(this.cm)})),undo:ni((function(){ho(this,"undo")})),redo:ni((function(){ho(this,"redo")})),undoSelection:ni((function(){ho(this,"undo",!0)})),redoSelection:ni((function(){ho(this,"redo",!0)})),setExtending:function(e){this.extend=e},getExtending:function(){return this.extend},historySize:function(){for(var e=this.history,t=0,n=0,r=0;r<e.done.length;r++)e.done[r].ranges||++t;for(var i=0;i<e.undone.length;i++)e.undone[i].ranges||++n;return{undo:t,redo:n}},clearHistory:function(){this.history=new _i(this.history.maxGeneration)},markClean:function(){this.cleanGeneration=this.changeGeneration(!0)},changeGeneration:function(e){return e&&(this.history.lastOp=this.history.lastSelOp=this.history.lastOrigin=null),this.history.generation},isClean:function(e){return this.history.generation==(e||this.cleanGeneration)},getHistory:function(){return{done:Ui(this.history.done),undone:Ui(this.history.undone)}},setHistory:function(e){var t=this.history=new _i(this.history.maxGeneration);t.done=Ui(e.done.slice(0),null,!0),t.undone=Ui(e.undone.slice(0),null,!0)},setGutterMarker:ni((function(e,t,n){return yo(this,e,"gutter",(function(e){var r=e.gutterMarkers||(e.gutterMarkers={});return r[t]=n,!n&&ne(r)&&(e.gutterMarkers=null),!0}))})),clearGutter:ni((function(e){var t=this;this.iter((function(n){n.gutterMarkers&&n.gutterMarkers[e]&&yo(t,n,"gutter",(function(){return n.gutterMarkers[e]=null,ne(n.gutterMarkers)&&(n.gutterMarkers=null),!0}))}))})),lineInfo:function(e){var t;if("number"==typeof e){if(!Je(this,e))return null;if(t=e,!(e=Ve(this,e)))return null}else if(null==(t=Ye(e)))return null;return{line:t,handle:e,text:e.text,gutterMarkers:e.gutterMarkers,textClass:e.textClass,bgClass:e.bgClass,wrapClass:e.wrapClass,widgets:e.widgets}},addLineClass:ni((function(e,t,n){return yo(this,e,"gutter"==t?"gutter":"class",(function(e){var r="text"==t?"textClass":"background"==t?"bgClass":"gutter"==t?"gutterClass":"wrapClass";if(e[r]){if(S(n).test(e[r]))return!1;e[r]+=" "+n}else e[r]=n;return!0}))})),removeLineClass:ni((function(e,t,n){return yo(this,e,"gutter"==t?"gutter":"class",(function(e){var r="text"==t?"textClass":"background"==t?"bgClass":"gutter"==t?"gutterClass":"wrapClass",i=e[r];if(!i)return!1;if(null==n)e[r]=null;else{var o=i.match(S(n));if(!o)return!1;var l=o.index+o[0].length;e[r]=i.slice(0,o.index)+(o.index&&l!=i.length?" ":"")+i.slice(l)||null}return!0}))})),addLineWidget:ni((function(e,t,n){return function(e,t,n,r){var i=new wo(e,n,r),o=e.cm;return o&&i.noHScroll&&(o.display.alignWidgets=!0),yo(e,t,"widget",(function(t){var n=t.widgets||(t.widgets=[]);if(null==i.insertAt?n.push(i):n.splice(Math.min(n.length-1,Math.max(0,i.insertAt)),0,i),i.line=t,o&&!jt(e,t)){var r=qt(t)<e.scrollTop;Ze(t,t.height+wn(i)),r&&Fr(o,i.height),o.curOp.forceUpdate=!0}return!0})),o&&un(o,"lineWidgetAdded",o,i,"number"==typeof t?t:Ye(t)),i}(this,e,t,n)})),removeLineWidget:function(e){e.clear()},markText:function(e,t,n){return To(this,st(this,e),st(this,t),n,n&&n.type||"range")},setBookmark:function(e,t){var n={replacedWith:t&&(null==t.nodeType?t.widget:t),insertLeft:t&&t.insertLeft,clearWhenEmpty:!1,shared:t&&t.shared,handleMouseEvents:t&&t.handleMouseEvents};return To(this,e=st(this,e),e,n,"bookmark")},findMarksAt:function(e){var t=[],n=Ve(this,(e=st(this,e)).line).markedSpans;if(n)for(var r=0;r<n.length;++r){var i=n[r];(null==i.from||i.from<=e.ch)&&(null==i.to||i.to>=e.ch)&&t.push(i.marker.parent||i.marker)}return t},findMarks:function(e,t,n){e=st(this,e),t=st(this,t);var r=[],i=e.line;return this.iter(e.line,t.line+1,(function(o){var l=o.markedSpans;if(l)for(var a=0;a<l.length;a++){var s=l[a];null!=s.to&&i==e.line&&e.ch>=s.to||null==s.from&&i!=e.line||null!=s.from&&i==t.line&&s.from>=t.ch||n&&!n(s.marker)||r.push(s.marker.parent||s.marker)}++i})),r},getAllMarks:function(){var e=[];return this.iter((function(t){var n=t.markedSpans;if(n)for(var r=0;r<n.length;++r)null!=n[r].from&&e.push(n[r].marker)})),e},posFromIndex:function(e){var t,n=this.first,r=this.lineSeparator().length;return this.iter((function(i){var o=i.text.length+r;if(o>e)return t=e,!0;e-=o,++n})),st(this,tt(n,t))},indexFromPos:function(e){var t=(e=st(this,e)).ch;if(e.line<this.first||e.ch<0)return 0;var n=this.lineSeparator().length;return this.iter(this.first,e.line,(function(e){t+=e.text.length+n})),t},copy:function(e){var t=new Fo(Xe(this,this.first,this.first+this.size),this.modeOption,this.first,this.lineSep,this.direction);return t.scrollTop=this.scrollTop,t.scrollLeft=this.scrollLeft,t.sel=this.sel,t.extend=!1,e&&(t.history.undoDepth=this.history.undoDepth,t.setHistory(this.getHistory())),t},linkedDoc:function(e){e||(e={});var t=this.first,n=this.first+this.size;null!=e.from&&e.from>t&&(t=e.from),null!=e.to&&e.to<n&&(n=e.to);var r=new Fo(Xe(this,t,n),e.mode||this.modeOption,t,this.lineSep,this.direction);return e.sharedHist&&(r.history=this.history),(this.linked||(this.linked=[])).push({doc:r,sharedHist:e.sharedHist}),r.linked=[{doc:this,isParent:!0,sharedHist:e.sharedHist}],function(e,t){for(var n=0;n<t.length;n++){var r=t[n],i=r.find(),o=e.clipPos(i.from),l=e.clipPos(i.to);if(nt(o,l)){var a=To(e,o,l,r.primary,r.primary.type);r.markers.push(a),a.parent=r}}}(r,Ao(this)),r},unlinkDoc:function(e){if(e instanceof Ml&&(e=e.doc),this.linked)for(var t=0;t<this.linked.length;++t)if(this.linked[t].doc==e){this.linked.splice(t,1),e.unlinkDoc(this),Do(Ao(this));break}if(e.history==this.history){var n=[e.id];zi(e,(function(e){return n.push(e.id)}),!0),e.history=new _i(null),e.history.done=Ui(this.history.done,n),e.history.undone=Ui(this.history.undone,n)}},iterLinkedDocs:function(e){zi(this,e)},getMode:function(){return this.mode},getEditor:function(){return this.cm},splitLines:function(e){return this.lineSep?e.split(this.lineSep):Oe(e)},lineSeparator:function(){return this.lineSep||"\n"},setDirection:ni((function(e){var t;"rtl"!=e&&(e="ltr"),e!=this.direction&&(this.direction=e,this.iter((function(e){return e.order=null})),this.cm&&Jr(t=this.cm,(function(){Pi(t),dr(t)})))}))}),Fo.prototype.eachLine=Fo.prototype.iter;var Oo=0;function Eo(e){var t=this;if(zo(t),!ge(t,e)&&!Cn(t.display,e)){be(e),l&&(Oo=+new Date);var n=cr(t,e,!0),r=e.dataTransfer.files;if(n&&!t.isReadOnly())if(r&&r.length&&window.FileReader&&window.File)for(var 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tt(r,i<0?n.text.length:0,i<0?"before":"after")}$o.basic={Left:"goCharLeft",Right:"goCharRight",Up:"goLineUp",Down:"goLineDown",End:"goLineEnd",Home:"goLineStartSmart",PageUp:"goPageUp",PageDown:"goPageDown",Delete:"delCharAfter",Backspace:"delCharBefore","Shift-Backspace":"delCharBefore",Tab:"defaultTab","Shift-Tab":"indentAuto",Enter:"newlineAndIndent",Insert:"toggleOverwrite",Esc:"singleSelection"},$o.pcDefault={"Ctrl-A":"selectAll","Ctrl-D":"deleteLine","Ctrl-Z":"undo","Shift-Ctrl-Z":"redo","Ctrl-Y":"redo","Ctrl-Home":"goDocStart","Ctrl-End":"goDocEnd","Ctrl-Up":"goLineUp","Ctrl-Down":"goLineDown","Ctrl-Left":"goGroupLeft","Ctrl-Right":"goGroupRight","Alt-Left":"goLineStart","Alt-Right":"goLineEnd","Ctrl-Backspace":"delGroupBefore","Ctrl-Delete":"delGroupAfter","Ctrl-S":"save","Ctrl-F":"find","Ctrl-G":"findNext","Shift-Ctrl-G":"findPrev","Shift-Ctrl-F":"replace","Shift-Ctrl-R":"replaceAll","Ctrl-[":"indentLess","Ctrl-]":"indentMore","Ctrl-U":"undoSelection","Shift-Ctrl-U":"redoSelection","Alt-U":"redoSelection",fallthrough:"basic"},$o.emacsy={"Ctrl-F":"goCharRight","Ctrl-B":"goCharLeft","Ctrl-P":"goLineUp","Ctrl-N":"goLineDown","Alt-F":"goWordRight","Alt-B":"goWordLeft","Ctrl-A":"goLineStart","Ctrl-E":"goLineEnd","Ctrl-V":"goPageDown","Shift-Ctrl-V":"goPageUp","Ctrl-D":"delCharAfter","Ctrl-H":"delCharBefore","Alt-D":"delWordAfter","Alt-Backspace":"delWordBefore","Ctrl-K":"killLine","Ctrl-T":"transposeChars","Ctrl-O":"openLine"},$o.macDefault={"Cmd-A":"selectAll","Cmd-D":"deleteLine","Cmd-Z":"undo","Shift-Cmd-Z":"redo","Cmd-Y":"redo","Cmd-Home":"goDocStart","Cmd-Up":"goDocStart","Cmd-End":"goDocEnd","Cmd-Down":"goDocEnd","Alt-Left":"goGroupLeft","Alt-Right":"goGroupRight","Cmd-Left":"goLineLeft","Cmd-Right":"goLineRight","Alt-Backspace":"delGroupBefore","Ctrl-Alt-Backspace":"delGroupAfter","Alt-Delete":"delGroupAfter","Cmd-S":"save","Cmd-F":"find","Cmd-G":"findNext","Shift-Cmd-G":"findPrev","Cmd-Alt-F":"replace","Shift-Cmd-Alt-F":"replaceAll","Cmd-[":"indentLess","Cmd-]":"indentMore","Cmd-Backspace":"delWrappedLineLeft","Cmd-Delete":"delWrappedLineRight","Cmd-U":"undoSelection","Shift-Cmd-U":"redoSelection","Ctrl-Up":"goDocStart","Ctrl-Down":"goDocEnd",fallthrough:["basic","emacsy"]},$o.default=x?$o.macDefault:$o.pcDefault;var 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e.redo()},undoSelection:function(e){return e.undoSelection()},redoSelection:function(e){return e.redoSelection()},goDocStart:function(e){return e.extendSelection(tt(e.firstLine(),0))},goDocEnd:function(e){return e.extendSelection(tt(e.lastLine()))},goLineStart:function(e){return e.extendSelectionsBy((function(t){return nl(e,t.head.line)}),{origin:"+move",bias:1})},goLineStartSmart:function(e){return e.extendSelectionsBy((function(t){return rl(e,t.head)}),{origin:"+move",bias:1})},goLineEnd:function(e){return e.extendSelectionsBy((function(t){return function(e,t){var n=Ve(e.doc,t),r=function(e){for(var t;t=Pt(e);)e=t.find(1,!0).line;return e}(n);return r!=n&&(t=Ye(r)),el(!0,e,n,t,-1)}(e,t.head.line)}),{origin:"+move",bias:-1})},goLineRight:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5;return e.coordsChar({left:e.display.lineDiv.offsetWidth+100,top:n},"div")}),G)},goLineLeft:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5;return e.coordsChar({left:0,top:n},"div")}),G)},goLineLeftSmart:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5,r=e.coordsChar({left:0,top:n},"div");return r.ch<e.getLine(r.line).search(/\S/)?rl(e,t.head):r}),G)},goLineUp:function(e){return e.moveV(-1,"line")},goLineDown:function(e){return e.moveV(1,"line")},goPageUp:function(e){return e.moveV(-1,"page")},goPageDown:function(e){return e.moveV(1,"page")},goCharLeft:function(e){return e.moveH(-1,"char")},goCharRight:function(e){return e.moveH(1,"char")},goColumnLeft:function(e){return e.moveH(-1,"column")},goColumnRight:function(e){return e.moveH(1,"column")},goWordLeft:function(e){return e.moveH(-1,"word")},goGroupRight:function(e){return e.moveH(1,"group")},goGroupLeft:function(e){return e.moveH(-1,"group")},goWordRight:function(e){return e.moveH(1,"word")},delCharBefore:function(e){return e.deleteH(-1,"char")},delCharAfter:function(e){return e.deleteH(1,"char")},delWordBefore:function(e){return e.deleteH(-1,"word")},delWordAfter:function(e){return e.deleteH(1,"word")},delGroupBefore:function(e){return e.deleteH(-1,"group")},delGroupAfter:function(e){return e.deleteH(1,"group")},indentAuto:function(e){return e.indentSelection("smart")},indentMore:function(e){return e.indentSelection("add")},indentLess:function(e){return e.indentSelection("subtract")},insertTab:function(e){return e.replaceSelection("\t")},insertSoftTab:function(e){for(var t=[],n=e.listSelections(),r=e.options.tabSize,i=0;i<n.length;i++){var o=n[i].from(),l=H(e.getLine(o.line),o.ch,r);t.push(K(r-l%r))}e.replaceSelections(t)},defaultTab:function(e){e.somethingSelected()?e.indentSelection("add"):e.execCommand("insertTab")},transposeChars:function(e){return Jr(e,(function(){for(var t=e.listSelections(),n=[],r=0;r<t.length;r++)if(t[r].empty()){var i=t[r].head,o=Ve(e.doc,i.line).text;if(o)if(i.ch==o.length&&(i=new tt(i.line,i.ch-1)),i.ch>0)i=new 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n=e.keyCode,r=e.charCode;if(h&&n==ul)return ul=null,void be(e);if(!h||e.which&&!(e.which<10)||!sl(t,e)){var i=String.fromCharCode(null==r?n:r);"\b"!=i&&(function(e,t,n){return ll(e,"'"+n+"'",t,(function(t){return il(e,t,!0)}))}(t,e,i)||t.display.input.onKeyPress(e))}}}var fl,pl,ml=function(e,t,n){this.time=e,this.pos=t,this.button=n};function gl(e){var t=this,n=t.display;if(!(ge(t,e)||n.activeTouch&&n.input.supportsTouch()))if(n.input.ensurePolled(),n.shift=e.shiftKey,Cn(n,e))s||(n.scroller.draggable=!1,setTimeout((function(){return n.scroller.draggable=!0}),100));else if(!yl(t,e)){var r=cr(t,e),i=Le(e),o=r?function(e,t){var n=+new Date;return pl&&pl.compare(n,e,t)?(fl=pl=null,"triple"):fl&&fl.compare(n,e,t)?(pl=new ml(n,e,t),fl=null,"double"):(fl=new ml(n,e,t),pl=null,"single")}(r,i):"single";window.focus(),1==i&&t.state.selectingText&&t.state.selectingText(e),r&&function(e,t,n,r,i){var 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Wl(e){for(var t=[],n=[],r=0;r<e.doc.sel.ranges.length;r++){var i=e.doc.sel.ranges[r].head.line,o={anchor:tt(i,0),head:tt(i+1,0)};n.push(o),t.push(e.getRange(o.anchor,o.head))}return{text:t,ranges:n}}function Pl(e,t,n,r){e.setAttribute("autocorrect",n?"":"off"),e.setAttribute("autocapitalize",r?"":"off"),e.setAttribute("spellcheck",!!t)}function _l(){var e=D("textarea",null,null,"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"),t=D("div",[e],null,"overflow: hidden; position: relative; width: 3px; height: 0px;");return s?e.style.width="1000px":e.setAttribute("wrap","off"),m&&(e.style.border="1px solid black"),Pl(e),t}function Hl(e,t,n,r,i){var o=t,l=n,a=Ve(e,t.line);function s(r){var o,l;if(null==(o=i?function(e,t,n,r){var i=ce(t,e.doc.direction);if(!i)return Jo(t,n,r);n.ch>=t.text.length?(n.ch=t.text.length,n.sticky="before"):n.ch<=0&&(n.ch=0,n.sticky="after");var o=se(i,n.ch,n.sticky),l=i[o];if("ltr"==e.doc.direction&&l.level%2==0&&(r>0?l.to>n.ch:l.from<n.ch))return Jo(t,n,r);var a,s=function(e,n){return Qo(t,e instanceof tt?e.ch:e,n)},u=function(n){return e.options.lineWrapping?(a=a||En(e,t),Jn(e,t,a,n)):{begin:0,end:t.text.length}},c=u("before"==n.sticky?s(n,-1):n.ch);if("rtl"==e.doc.direction||1==l.level){var h=1==l.level==r<0,d=s(n,h?1:-1);if(null!=d&&(h?d<=l.to&&d<=c.end:d>=l.from&&d>=c.begin)){var f=h?"before":"after";return new tt(n.line,d,f)}}var p=function(e,t,r){for(var o=function(e,t){return t?new tt(n.line,s(e,1),"before"):new tt(n.line,e,"after")};e>=0&&e<i.length;e+=t){var l=i[e],a=t>0==(1!=l.level),u=a?r.begin:s(r.end,-1);if(l.from<=u&&u<l.to)return o(u,a);if(u=a?l.from:s(l.to,-1),r.begin<=u&&u<r.end)return o(u,a)}},m=p(o+r,r,c);if(m)return m;var g=r>0?c.end:s(c.begin,-1);return null==g||r>0&&g==t.text.length||!(m=p(r>0?0:i.length-1,r,u(g)))?null:m}(e.cm,a,t,n):Jo(a,t,n))){if(r||(l=t.line+n)<e.first||l>=e.first+e.size||(t=new tt(l,t.ch,t.sticky),!(a=Ve(e,l))))return!1;t=el(i,e.cm,a,t.line,n)}else t=o;return!0}if("char"==r)s();else if("column"==r)s(!0);else if("word"==r||"group"==r)for(var u=null,c="group"==r,h=e.cm&&e.cm.getHelper(t,"wordChars"),d=!0;!(n<0)||s(!d);d=!1){var f=a.text.charAt(t.ch)||"\n",p=te(f,h)?"w":c&&"\n"==f?"n":!c||/\s/.test(f)?null:"p";if(!c||d||p||(p="s"),u&&u!=p){n<0&&(n=1,s(),t.sticky="after");break}if(p&&(u=p),n>0&&!s(!d))break}var m=oo(e,t,o,l,!0);return rt(o,m)&&(m.hitSide=!0),m}function Il(e,t,n,r){var i,o,l=e.doc,a=t.left;if("page"==r){var s=Math.min(e.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight),u=Math.max(s-.5*ir(e.display),3);i=(n>0?t.bottom:t.top)+n*u}else"line"==r&&(i=n>0?t.bottom+3:t.top-3);for(;(o=Yn(e,a,i)).outside;){if(n<0?i<=0:i>=l.height){o.hitSide=!0;break}i+=5*n}return o}var Rl=function(e){this.cm=e,this.lastAnchorNode=this.lastAnchorOffset=this.lastFocusNode=this.lastFocusOffset=null,this.polling=new I,this.composing=null,this.gracePeriod=!1,this.readDOMTimeout=null};function Bl(e,t){var n=On(e,t.line);if(!n||n.hidden)return null;var r=Ve(e.doc,t.line),i=Nn(n,r,t.line),o=ce(r,e.doc.direction),l="left";o&&(l=se(o,t.ch)%2?"right":"left");var a=_n(i.map,t.ch,l);return a.offset="right"==a.collapse?a.end:a.start,a}function jl(e,t){return t&&(e.bad=!0),e}function $l(e,t,n){var r;if(t==e.display.lineDiv){if(!(r=e.display.lineDiv.childNodes[n]))return jl(e.clipPos(tt(e.display.viewTo-1)),!0);t=null,n=0}else for(r=t;;r=r.parentNode){if(!r||r==e.display.lineDiv)return null;if(r.parentNode&&r.parentNode==e.display.lineDiv)break}for(var i=0;i<e.display.view.length;i++){var o=e.display.view[i];if(o.node==r)return ql(o,t,n)}}function ql(e,t,n){var r=e.text.firstChild,i=!1;if(!t||!F(r,t))return jl(tt(Ye(e.line),0),!0);if(t==r&&(i=!0,t=r.childNodes[n],n=0,!t)){var o=e.rest?X(e.rest):e.line;return jl(tt(Ye(o),o.text.length),i)}var l=3==t.nodeType?t:null,a=t;for(l||1!=t.childNodes.length||3!=t.firstChild.nodeType||(l=t.firstChild,n&&(n=l.nodeValue.length));a.parentNode!=r;)a=a.parentNode;var s=e.measure,u=s.maps;function c(t,n,r){for(var i=-1;i<(u?u.length:0);i++)for(var o=i<0?s.map:u[i],l=0;l<o.length;l+=3){var a=o[l+2];if(a==t||a==n){var c=Ye(i<0?e.line:e.rest[i]),h=o[l]+r;return(r<0||a!=t)&&(h=o[l+(r?1:0)]),tt(c,h)}}}var h=c(l,a,n);if(h)return jl(h,i);for(var d=a.nextSibling,f=l?l.nodeValue.length-n:0;d;d=d.nextSibling){if(h=c(d,d.firstChild,0))return jl(tt(h.line,h.ch-f),i);f+=d.textContent.length}for(var p=a.previousSibling,m=n;p;p=p.previousSibling){if(h=c(p,p.firstChild,-1))return jl(tt(h.line,h.ch+m),i);m+=p.textContent.length}}Rl.prototype.init=function(e){var t=this,n=this,r=n.cm,i=n.div=e.lineDiv;function o(e){if(!ge(r,e)){if(r.somethingSelected())Fl({lineWise:!1,text:r.getSelections()}),"cut"==e.type&&r.replaceSelection("",null,"cut");else{if(!r.options.lineWiseCopyCut)return;var t=Wl(r);Fl({lineWise:!0,text:t.text}),"cut"==e.type&&r.operation((function(){r.setSelections(t.ranges,0,$),r.replaceSelection("",null,"cut")}))}if(e.clipboardData){e.clipboardData.clearData();var o=Nl.text.join("\n");if(e.clipboardData.setData("Text",o),e.clipboardData.getData("Text")==o)return void e.preventDefault()}var l=_l(),a=l.firstChild;r.display.lineSpace.insertBefore(l,r.display.lineSpace.firstChild),a.value=Nl.text.join("\n");var s=document.activeElement;W(a),setTimeout((function(){r.display.lineSpace.removeChild(l),s.focus(),s==i&&n.showPrimarySelection()}),50)}}Pl(i,r.options.spellcheck,r.options.autocorrect,r.options.autocapitalize),de(i,"paste",(function(e){ge(r,e)||El(e,r)||a<=11&&setTimeout(ei(r,(function(){return t.updateFromDOM()})),20)})),de(i,"compositionstart",(function(e){t.composing={data:e.data,done:!1}})),de(i,"compositionupdate",(function(e){t.composing||(t.composing={data:e.data,done:!1})})),de(i,"compositionend",(function(e){t.composing&&(e.data!=t.composing.data&&t.readFromDOMSoon(),t.composing.done=!0)})),de(i,"touchstart",(function(){return n.forceCompositionEnd()})),de(i,"input",(function(){t.composing||t.readFromDOMSoon()})),de(i,"copy",o),de(i,"cut",o)},Rl.prototype.prepareSelection=function(){var e=xr(this.cm,!1);return e.focus=this.cm.state.focused,e},Rl.prototype.showSelection=function(e,t){e&&this.cm.display.view.length&&((e.focus||t)&&this.showPrimarySelection(),this.showMultipleSelections(e))},Rl.prototype.getSelection=function(){return this.cm.display.wrapper.ownerDocument.getSelection()},Rl.prototype.showPrimarySelection=function(){var e=this.getSelection(),t=this.cm,r=t.doc.sel.primary(),i=r.from(),o=r.to();if(t.display.viewTo==t.display.viewFrom||i.line>=t.display.viewTo||o.line<t.display.viewFrom)e.removeAllRanges();else{var l=$l(t,e.anchorNode,e.anchorOffset),a=$l(t,e.focusNode,e.focusOffset);if(!l||l.bad||!a||a.bad||0!=nt(lt(l,a),i)||0!=nt(ot(l,a),o)){var s=t.display.view,u=i.line>=t.display.viewFrom&&Bl(t,i)||{node:s[0].measure.map[2],offset:0},c=o.line<t.display.viewTo&&Bl(t,o);if(!c){var h=s[s.length-1].measure,d=h.maps?h.maps[h.maps.length-1]:h.map;c={node:d[d.length-1],offset:d[d.length-2]-d[d.length-3]}}if(u&&c){var f,p=e.rangeCount&&e.getRangeAt(0);try{f=L(u.node,u.offset,c.offset,c.node)}catch(e){}f&&(!n&&t.state.focused?(e.collapse(u.node,u.offset),f.collapsed||(e.removeAllRanges(),e.addRange(f))):(e.removeAllRanges(),e.addRange(f)),p&&null==e.anchorNode?e.addRange(p):n&&this.startGracePeriod()),this.rememberSelection()}else e.removeAllRanges()}}},Rl.prototype.startGracePeriod=function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout((function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation((function(){return e.cm.curOp.selectionChanged=!0}))}),20)},Rl.prototype.showMultipleSelections=function(e){A(this.cm.display.cursorDiv,e.cursors),A(this.cm.display.selectionDiv,e.selection)},Rl.prototype.rememberSelection=function(){var e=this.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},Rl.prototype.selectionInEditor=function(){var e=this.getSelection();if(!e.rangeCount)return!1;var t=e.getRangeAt(0).commonAncestorContainer;return F(this.div,t)},Rl.prototype.focus=function(){"nocursor"!=this.cm.options.readOnly&&(this.selectionInEditor()||this.showSelection(this.prepareSelection(),!0),this.div.focus())},Rl.prototype.blur=function(){this.div.blur()},Rl.prototype.getField=function(){return this.div},Rl.prototype.supportsTouch=function(){return!0},Rl.prototype.receivedFocus=function(){var e=this;this.selectionInEditor()?this.pollSelection():Jr(this.cm,(function(){return e.cm.curOp.selectionChanged=!0})),this.polling.set(this.cm.options.pollInterval,(function t(){e.cm.state.focused&&(e.pollSelection(),e.polling.set(e.cm.options.pollInterval,t))}))},Rl.prototype.selectionChanged=function(){var e=this.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},Rl.prototype.pollSelection=function(){if(null==this.readDOMTimeout&&!this.gracePeriod&&this.selectionChanged()){var e=this.getSelection(),t=this.cm;if(g&&c&&this.cm.display.gutterSpecs.length&&function(e){for(var t=e;t;t=t.parentNode)if(/CodeMirror-gutter-wrapper/.test(t.className))return!0;return!1}(e.anchorNode))return this.cm.triggerOnKeyDown({type:"keydown",keyCode:8,preventDefault:Math.abs}),this.blur(),void this.focus();if(!this.composing){this.rememberSelection();var n=$l(t,e.anchorNode,e.anchorOffset),r=$l(t,e.focusNode,e.focusOffset);n&&r&&Jr(t,(function(){Ji(t.doc,Li(n,r),$),(n.bad||r.bad)&&(t.curOp.selectionChanged=!0)}))}}},Rl.prototype.pollContent=function(){null!=this.readDOMTimeout&&(clearTimeout(this.readDOMTimeout),this.readDOMTimeout=null);var e,t,n,r=this.cm,i=r.display,o=r.doc.sel.primary(),l=o.from(),a=o.to();if(0==l.ch&&l.line>r.firstLine()&&(l=tt(l.line-1,Ve(r.doc,l.line-1).length)),a.ch==Ve(r.doc,a.line).text.length&&a.line<r.lastLine()&&(a=tt(a.line+1,0)),l.line<i.viewFrom||a.line>i.viewTo-1)return!1;l.line==i.viewFrom||0==(e=hr(r,l.line))?(t=Ye(i.view[0].line),n=i.view[0].node):(t=Ye(i.view[e].line),n=i.view[e-1].node.nextSibling);var s,u,c=hr(r,a.line);if(c==i.view.length-1?(s=i.viewTo-1,u=i.lineDiv.lastChild):(s=Ye(i.view[c+1].line)-1,u=i.view[c+1].node.previousSibling),!n)return!1;for(var h=r.doc.splitLines(function(e,t,n,r,i){var o="",l=!1,a=e.doc.lineSeparator(),s=!1;function u(){l&&(o+=a,s&&(o+=a),l=s=!1)}function c(e){e&&(u(),o+=e)}function h(t){if(1==t.nodeType){var n=t.getAttribute("cm-text");if(n)return void c(n);var o,d=t.getAttribute("cm-marker");if(d){var f=e.findMarks(tt(r,0),tt(i+1,0),(g=+d,function(e){return e.id==g}));return void(f.length&&(o=f[0].find(0))&&c(Ke(e.doc,o.from,o.to).join(a)))}if("false"==t.getAttribute("contenteditable"))return;var p=/^(pre|div|p|li|table|br)$/i.test(t.nodeName);if(!/^br$/i.test(t.nodeName)&&0==t.textContent.length)return;p&&u();for(var m=0;m<t.childNodes.length;m++)h(t.childNodes[m]);/^(pre|p)$/i.test(t.nodeName)&&(s=!0),p&&(l=!0)}else 3==t.nodeType&&c(t.nodeValue.replace(/\u200b/g,"").replace(/\u00a0/g," "));var g}for(;h(t),t!=n;)t=t.nextSibling,s=!1;return o}(r,n,u,t,s)),d=Ke(r.doc,tt(t,0),tt(s,Ve(r.doc,s).text.length));h.length>1&&d.length>1;)if(X(h)==X(d))h.pop(),d.pop(),s--;else{if(h[0]!=d[0])break;h.shift(),d.shift(),t++}for(var f=0,p=0,m=h[0],g=d[0],v=Math.min(m.length,g.length);f<v&&m.charCodeAt(f)==g.charCodeAt(f);)++f;for(var x=X(h),y=X(d),b=Math.min(x.length-(1==h.length?f:0),y.length-(1==d.length?f:0));p<b&&x.charCodeAt(x.length-p-1)==y.charCodeAt(y.length-p-1);)++p;if(1==h.length&&1==d.length&&t==l.line)for(;f&&f>l.ch&&x.charCodeAt(x.length-p-1)==y.charCodeAt(y.length-p-1);)f--,p++;h[h.length-1]=x.slice(0,x.length-p).replace(/^\u200b+/,""),h[0]=h[0].slice(f).replace(/\u200b+$/,"");var k=tt(t,f),w=tt(s,d.length?X(d).length-p:0);return h.length>1||h[0]||nt(k,w)?(mo(r.doc,h,k,w,"+input"),!0):void 0},Rl.prototype.ensurePolled=function(){this.forceCompositionEnd()},Rl.prototype.reset=function(){this.forceCompositionEnd()},Rl.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},Rl.prototype.readFromDOMSoon=function(){var e=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout((function(){if(e.readDOMTimeout=null,e.composing){if(!e.composing.done)return;e.composing=null}e.updateFromDOM()}),80))},Rl.prototype.updateFromDOM=function(){var e=this;!this.cm.isReadOnly()&&this.pollContent()||Jr(this.cm,(function(){return dr(e.cm)}))},Rl.prototype.setUneditable=function(e){e.contentEditable="false"},Rl.prototype.onKeyPress=function(e){0==e.charCode||this.composing||(e.preventDefault(),this.cm.isReadOnly()||ei(this.cm,Ol)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0))},Rl.prototype.readOnlyChanged=function(e){this.div.contentEditable=String("nocursor"!=e)},Rl.prototype.onContextMenu=function(){},Rl.prototype.resetPosition=function(){},Rl.prototype.needsContentAttribute=!0;var Gl=function(e){this.cm=e,this.prevInput="",this.pollingFast=!1,this.polling=new I,this.hasSelection=!1,this.composing=null};Gl.prototype.init=function(e){var t=this,n=this,r=this.cm;this.createField(e);var i=this.textarea;function o(e){if(!ge(r,e)){if(r.somethingSelected())Fl({lineWise:!1,text:r.getSelections()});else{if(!r.options.lineWiseCopyCut)return;var t=Wl(r);Fl({lineWise:!0,text:t.text}),"cut"==e.type?r.setSelections(t.ranges,null,$):(n.prevInput="",i.value=t.text.join("\n"),W(i))}"cut"==e.type&&(r.state.cutIncoming=+new Date)}}e.wrapper.insertBefore(this.wrapper,e.wrapper.firstChild),m&&(i.style.width="0px"),de(i,"input",(function(){l&&a>=9&&t.hasSelection&&(t.hasSelection=null),n.poll()})),de(i,"paste",(function(e){ge(r,e)||El(e,r)||(r.state.pasteIncoming=+new Date,n.fastPoll())})),de(i,"cut",o),de(i,"copy",o),de(e.scroller,"paste",(function(t){if(!Cn(e,t)&&!ge(r,t)){if(!i.dispatchEvent)return r.state.pasteIncoming=+new Date,void n.focus();var o=new Event("paste");o.clipboardData=t.clipboardData,i.dispatchEvent(o)}})),de(e.lineSpace,"selectstart",(function(t){Cn(e,t)||be(t)})),de(i,"compositionstart",(function(){var e=r.getCursor("from");n.composing&&n.composing.range.clear(),n.composing={start:e,range:r.markText(e,r.getCursor("to"),{className:"CodeMirror-composing"})}})),de(i,"compositionend",(function(){n.composing&&(n.poll(),n.composing.range.clear(),n.composing=null)}))},Gl.prototype.createField=function(e){this.wrapper=_l(),this.textarea=this.wrapper.firstChild},Gl.prototype.prepareSelection=function(){var e=this.cm,t=e.display,n=e.doc,r=xr(e);if(e.options.moveInputWithCursor){var i=Kn(e,n.sel.primary().head,"div"),o=t.wrapper.getBoundingClientRect(),l=t.lineDiv.getBoundingClientRect();r.teTop=Math.max(0,Math.min(t.wrapper.clientHeight-10,i.top+l.top-o.top)),r.teLeft=Math.max(0,Math.min(t.wrapper.clientWidth-10,i.left+l.left-o.left))}return r},Gl.prototype.showSelection=function(e){var t=this.cm.display;A(t.cursorDiv,e.cursors),A(t.selectionDiv,e.selection),null!=e.teTop&&(this.wrapper.style.top=e.teTop+"px",this.wrapper.style.left=e.teLeft+"px")},Gl.prototype.reset=function(e){if(!this.contextMenuPending&&!this.composing){var t=this.cm;if(t.somethingSelected()){this.prevInput="";var n=t.getSelection();this.textarea.value=n,t.state.focused&&W(this.textarea),l&&a>=9&&(this.hasSelection=n)}else e||(this.prevInput=this.textarea.value="",l&&a>=9&&(this.hasSelection=null))}},Gl.prototype.getField=function(){return this.textarea},Gl.prototype.supportsTouch=function(){return!1},Gl.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!v||O()!=this.textarea))try{this.textarea.focus()}catch(e){}},Gl.prototype.blur=function(){this.textarea.blur()},Gl.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},Gl.prototype.receivedFocus=function(){this.slowPoll()},Gl.prototype.slowPoll=function(){var e=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,(function(){e.poll(),e.cm.state.focused&&e.slowPoll()}))},Gl.prototype.fastPoll=function(){var e=!1,t=this;t.pollingFast=!0,t.polling.set(20,(function n(){t.poll()||e?(t.pollingFast=!1,t.slowPoll()):(e=!0,t.polling.set(60,n))}))},Gl.prototype.poll=function(){var e=this,t=this.cm,n=this.textarea,r=this.prevInput;if(this.contextMenuPending||!t.state.focused||Ee(n)&&!r&&!this.composing||t.isReadOnly()||t.options.disableInput||t.state.keySeq)return!1;var i=n.value;if(i==r&&!t.somethingSelected())return!1;if(l&&a>=9&&this.hasSelection===i||x&&/[\uf700-\uf7ff]/.test(i))return t.display.input.reset(),!1;if(t.doc.sel==t.display.selForContextMenu){var o=i.charCodeAt(0);if(8203!=o||r||(r="​"),8666==o)return this.reset(),this.cm.execCommand("undo")}for(var s=0,u=Math.min(r.length,i.length);s<u&&r.charCodeAt(s)==i.charCodeAt(s);)++s;return Jr(t,(function(){Ol(t,i.slice(s),r.length-s,null,e.composing?"*compose":null),i.length>1e3||i.indexOf("\n")>-1?n.value=e.prevInput="":e.prevInput=i,e.composing&&(e.composing.range.clear(),e.composing.range=t.markText(e.composing.start,t.getCursor("to"),{className:"CodeMirror-composing"}))})),!0},Gl.prototype.ensurePolled=function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},Gl.prototype.onKeyPress=function(){l&&a>=9&&(this.hasSelection=null),this.fastPoll()},Gl.prototype.onContextMenu=function(e){var t=this,n=t.cm,r=n.display,i=t.textarea;t.contextMenuPending&&t.contextMenuPending();var o=cr(n,e),u=r.scroller.scrollTop;if(o&&!h){n.options.resetSelectionOnContextMenu&&-1==n.doc.sel.contains(o)&&ei(n,Ji)(n.doc,Li(o),$);var c,d=i.style.cssText,f=t.wrapper.style.cssText,p=t.wrapper.offsetParent.getBoundingClientRect();if(t.wrapper.style.cssText="position: static",i.style.cssText="position: absolute; width: 30px; height: 30px;\n      top: "+(e.clientY-p.top-5)+"px; left: "+(e.clientX-p.left-5)+"px;\n      z-index: 1000; background: "+(l?"rgba(255, 255, 255, .05)":"transparent")+";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",s&&(c=window.scrollY),r.input.focus(),s&&window.scrollTo(null,c),r.input.reset(),n.somethingSelected()||(i.value=t.prevInput=" "),t.contextMenuPending=v,r.selForContextMenu=n.doc.sel,clearTimeout(r.detectingSelectAll),l&&a>=9&&g(),C){Ce(e);var m=function(){pe(window,"mouseup",m),setTimeout(v,20)};de(window,"mouseup",m)}else setTimeout(v,50)}function g(){if(null!=i.selectionStart){var e=n.somethingSelected(),o="​"+(e?i.value:"");i.value="⇚",i.value=o,t.prevInput=e?"":"​",i.selectionStart=1,i.selectionEnd=o.length,r.selForContextMenu=n.doc.sel}}function v(){if(t.contextMenuPending==v&&(t.contextMenuPending=!1,t.wrapper.style.cssText=f,i.style.cssText=d,l&&a<9&&r.scrollbars.setScrollTop(r.scroller.scrollTop=u),null!=i.selectionStart)){(!l||l&&a<9)&&g();var e=0,o=function(){r.selForContextMenu==n.doc.sel&&0==i.selectionStart&&i.selectionEnd>0&&"​"==t.prevInput?ei(n,ao)(n):e++<10?r.detectingSelectAll=setTimeout(o,500):(r.selForContextMenu=null,r.input.reset())};r.detectingSelectAll=setTimeout(o,200)}}},Gl.prototype.readOnlyChanged=function(e){e||this.reset(),this.textarea.disabled="nocursor"==e},Gl.prototype.setUneditable=function(){},Gl.prototype.needsContentAttribute=!1,function(e){var t=e.optionHandlers;function n(n,r,i,o){e.defaults[n]=r,i&&(t[n]=o?function(e,t,n){n!=wl&&i(e,t,n)}:i)}e.defineOption=n,e.Init=wl,n("value","",(function(e,t){return e.setValue(t)}),!0),n("mode",null,(function(e,t){e.doc.modeOption=t,Ni(e)}),!0),n("indentUnit",2,Ni,!0),n("indentWithTabs",!1),n("smartIndent",!0),n("tabSize",4,(function(e){Fi(e),Bn(e),dr(e)}),!0),n("lineSeparator",null,(function(e,t){if(e.doc.lineSep=t,t){var n=[],r=e.doc.first;e.doc.iter((function(e){for(var i=0;;){var 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o},moveH:ti((function(e,t){var n=this;this.extendSelectionsBy((function(r){return n.display.shift||n.doc.extend||r.empty()?Hl(n.doc,r.head,e,t,n.options.rtlMoveVisually):e<0?r.from():r.to()}),G)})),deleteH:ti((function(e,t){var n=this.doc.sel,r=this.doc;n.somethingSelected()?r.replaceSelection("",null,"+delete"):Yo(this,(function(n){var i=Hl(r,n.head,e,t,!1);return e<0?{from:i,to:n.head}:{from:n.head,to:i}}))})),findPosV:function(e,t,n,r){var i=1,o=r;t<0&&(i=-1,t=-t);for(var l=st(this.doc,e),a=0;a<t;++a){var s=Kn(this,l,"div");if(null==o?o=s.left:s.left=o,(l=Il(this,s,i,n)).hitSide)break}return l},moveV:ti((function(e,t){var n=this,r=this.doc,i=[],o=!this.display.shift&&!r.extend&&r.sel.somethingSelected();if(r.extendSelectionsBy((function(l){if(o)return e<0?l.from():l.to();var a=Kn(n,l.head,"div");null!=l.goalColumn&&(a.left=l.goalColumn),i.push(a.left);var s=Il(n,a,e,t);return"page"==t&&l==r.sel.primary()&&Fr(n,Vn(n,s,"div").top-a.top),s}),G),i.length)for(var 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e=this.display.scroller;return{left:e.scrollLeft,top:e.scrollTop,height:e.scrollHeight-Mn(this)-this.display.barHeight,width:e.scrollWidth-Mn(this)-this.display.barWidth,clientHeight:Dn(this),clientWidth:An(this)}},scrollIntoView:ti((function(e,t){null==e?(e={from:this.doc.sel.primary().head,to:null},null==t&&(t=this.options.cursorScrollMargin)):"number"==typeof e?e={from:tt(e,0),to:null}:null==e.from&&(e={from:e,to:null}),e.to||(e.to=e.from),e.margin=t||0,null!=e.from.line?function(e,t){zr(e),e.curOp.scrollToPos=t}(this,e):Wr(this,e.from,e.to,e.margin)})),setSize:ti((function(e,t){var n=this,r=function(e){return"number"==typeof e||/^\d+$/.test(String(e))?e+"px":e};null!=e&&(this.display.wrapper.style.width=r(e)),null!=t&&(this.display.wrapper.style.height=r(t)),this.options.lineWrapping&&Rn(this);var i=this.display.viewFrom;this.doc.iter(i,this.display.viewTo,(function(e){if(e.widgets)for(var 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this.display.wrapper},getScrollerElement:function(){return this.display.scroller},getGutterElement:function(){return this.display.gutters}},ye(e),e.registerHelper=function(t,r,i){n.hasOwnProperty(t)||(n[t]=e[t]={_global:[]}),n[t][r]=i},e.registerGlobalHelper=function(t,r,i,o){e.registerHelper(t,r,o),n[t]._global.push({pred:i,val:o})}}(Ml);var Ul="iter insert remove copy getEditor constructor".split(" ");for(var Vl in Fo.prototype)Fo.prototype.hasOwnProperty(Vl)&&R(Ul,Vl)<0&&(Ml.prototype[Vl]=function(e){return function(){return e.apply(this.doc,arguments)}}(Fo.prototype[Vl]));return ye(Fo),Ml.inputStyles={textarea:Gl,contenteditable:Rl},Ml.defineMode=function(e){Ml.defaults.mode||"null"==e||(Ml.defaults.mode=e),He.apply(this,arguments)},Ml.defineMIME=function(e,t){_e[e]=t},Ml.defineMode("null",(function(){return{token:function(e){return 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x=e.cm.options.tabSize,y=x-e.col%x;(v=u.appendChild(A("span",V(y),"cm-tab"))).setAttribute("role","presentation"),v.setAttribute("cm-text","\t"),e.col+=y}else"\r"==p[0]||"\n"==p[0]?((v=u.appendChild(A("span","\r"==p[0]?"␍":"␤","cm-invalidchar"))).setAttribute("cm-text",p[0]),e.col+=1):((v=e.cm.options.specialCharPlaceholder(p[0])).setAttribute("cm-text",p[0]),l&&s<9?u.appendChild(A("span",[v])):u.appendChild(v),e.col+=1);e.map.push(e.pos,e.pos+1,v),e.pos++}}else e.col+=t.length,u=document.createTextNode(c),e.map.push(e.pos,e.pos+t.length,u),l&&s<9&&(d=!0),e.pos+=t.length;if(e.trailingSpace=32==c.charCodeAt(t.length-1),n||r||i||d||o){var b=n||"";r&&(b+=r),i&&(b+=i);var k=A("span",[u],b,o);if(a)for(var w in a)a.hasOwnProperty(w)&&"style"!=w&&"class"!=w&&k.setAttribute(w,a[w]);return e.content.appendChild(k)}e.content.appendChild(u)}}function en(e,t){return function(n,r,i,o,l,s,a){i=i?i+" cm-force-border":"cm-force-border";for(var u=n.pos,c=u+r.length;;){for(var h=void 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n&&n.line==t.line?(e.display.externalMeasured=null,t.measure=n.measure,n.built):Yt(e,t)}function fn(e,t){var n=t.text.className,r=dn(e,t);t.text==t.node&&(t.node=r.pre),t.text.parentNode.replaceChild(r.pre,t.text),t.text=r.pre,r.bgClass!=t.bgClass||r.textClass!=t.textClass?(t.bgClass=r.bgClass,t.textClass=r.textClass,pn(e,t)):n&&(t.text.className=n)}function pn(e,t){!function(e,t){var n=t.bgClass?t.bgClass+" "+(t.line.bgClass||""):t.line.bgClass;if(n&&(n+=" CodeMirror-linebackground"),t.background)n?t.background.className=n:(t.background.parentNode.removeChild(t.background),t.background=null);else if(n){var r=hn(t);t.background=r.insertBefore(A("div",null,n),r.firstChild),e.display.input.setUneditable(t.background)}}(e,t),t.line.wrapClass?hn(t).className=t.line.wrapClass:t.node!=t.text&&(t.node.className="");var n=t.textClass?t.textClass+" "+(t.line.textClass||""):t.line.textClass;t.text.className=n||""}function mn(e,t,n,r){if(t.gutter&&(t.node.removeChild(t.gutter),t.gutter=null),t.gutterBackground&&(t.node.removeChild(t.gutterBackground),t.gutterBackground=null),t.line.gutterClass){var i=hn(t);t.gutterBackground=A("div",null,"CodeMirror-gutter-background "+t.line.gutterClass,"left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px; width: "+r.gutterTotalWidth+"px"),e.display.input.setUneditable(t.gutterBackground),i.insertBefore(t.gutterBackground,t.text)}var o=t.line.gutterMarkers;if(e.options.lineNumbers||o){var l=hn(t),s=t.gutter=A("div",null,"CodeMirror-gutter-wrapper","left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px");if(e.display.input.setUneditable(s),l.insertBefore(s,t.text),t.line.gutterClass&&(s.className+=" "+t.line.gutterClass),!e.options.lineNumbers||o&&o["CodeMirror-linenumbers"]||(t.lineNumber=s.appendChild(A("div",Je(e.options,n),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+r.gutterLeft["CodeMirror-linenumbers"]+"px; width: 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n=Ce(t);n!=e.wrapper;n=n.parentNode)if(!n||1==n.nodeType&&"true"==n.getAttribute("cm-ignore-events")||n.parentNode==e.sizer&&n!=e.mover)return!0}function Cn(e){return e.lineSpace.offsetTop}function Sn(e){return e.mover.offsetHeight-e.lineSpace.offsetHeight}function Ln(e){if(e.cachedPaddingH)return e.cachedPaddingH;var t=D(e.measure,A("pre","x","CodeMirror-line-like")),n=window.getComputedStyle?window.getComputedStyle(t):t.currentStyle,r={left:parseInt(n.paddingLeft),right:parseInt(n.paddingRight)};return isNaN(r.left)||isNaN(r.right)||(e.cachedPaddingH=r),r}function Tn(e){return 30-e.display.nativeBarWidth}function Mn(e){return e.display.scroller.clientWidth-Tn(e)-e.display.barWidth}function Dn(e){return e.display.scroller.clientHeight-Tn(e)-e.display.barHeight}function An(e,t,n){if(e.line==t)return{map:e.measure.map,cache:e.measure.cache};for(var r=0;r<e.rest.length;r++)if(e.rest[r]==t)return{map:e.measure.maps[r],cache:e.measure.caches[r]};for(var 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s=e.display.gutterSpecs[l].className;n[s]=o.offsetLeft+o.clientLeft+i,r[s]=o.clientWidth}return{fixedPos:lr(t),gutterTotalWidth:t.gutters.offsetWidth,gutterLeft:n,gutterWidth:r,wrapperWidth:t.wrapper.clientWidth}}function lr(e){return e.scroller.getBoundingClientRect().left-e.sizer.getBoundingClientRect().left}function sr(e){var t=rr(e.display),n=e.options.lineWrapping,r=n&&Math.max(5,e.display.scroller.clientWidth/ir(e.display)-3);return function(i){if(Bt(e.doc,i))return 0;var o=0;if(i.widgets)for(var l=0;l<i.widgets.length;l++)i.widgets[l].height&&(o+=i.widgets[l].height);return n?o+(Math.ceil(i.text.length/r)||1)*t:o+t}}function ar(e){var t=e.doc,n=sr(e);t.iter((function(e){var t=n(e);t!=e.height&&Xe(e,t)}))}function ur(e,t,n,r){var i=e.display;if(!n&&"true"==Ce(t).getAttribute("cm-not-content"))return null;var o,l,s=i.lineSpace.getBoundingClientRect();try{o=t.clientX-s.left,l=t.clientY-s.top}catch(t){return null}var a,u=Zn(e,o,l);if(r&&u.xRel>0&&(a=Ge(e.doc,u.line).text).length==u.ch){var c=H(a,a.length,e.options.tabSize)-a.length;u=et(u.line,Math.max(0,Math.round((o-Ln(e.display).left)/ir(e.display))-c))}return u}function cr(e,t){if(t>=e.display.viewTo)return null;if((t-=e.display.viewFrom)<0)return null;for(var n=e.display.view,r=0;r<n.length;r++)if((t-=n[r].size)<0)return r}function hr(e,t,n,r){null==t&&(t=e.doc.first),null==n&&(n=e.doc.first+e.doc.size),r||(r=0);var i=e.display;if(r&&n<i.viewTo&&(null==i.updateLineNumbers||i.updateLineNumbers>t)&&(i.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=i.viewTo)wt&&It(e.doc,t)<i.viewTo&&fr(e);else if(n<=i.viewFrom)wt&&Rt(e.doc,n+r)>i.viewFrom?fr(e):(i.viewFrom+=r,i.viewTo+=r);else if(t<=i.viewFrom&&n>=i.viewTo)fr(e);else if(t<=i.viewFrom){var o=pr(e,n,n+r,1);o?(i.view=i.view.slice(o.index),i.viewFrom=o.lineN,i.viewTo+=r):fr(e)}else if(n>=i.viewTo){var l=pr(e,t,t,-1);l?(i.view=i.view.slice(0,l.index),i.viewTo=l.lineN):fr(e)}else{var s=pr(e,t,t,-1),a=pr(e,n,n+r,1);s&&a?(i.view=i.view.slice(0,s.index).concat(on(e,s.lineN,a.lineN)).concat(i.view.slice(a.index)),i.viewTo+=r):fr(e)}var u=i.externalMeasured;u&&(n<u.lineN?u.lineN+=r:t<u.lineN+u.size&&(i.externalMeasured=null))}function dr(e,t,n){e.curOp.viewChanged=!0;var r=e.display,i=e.display.externalMeasured;if(i&&t>=i.lineN&&t<i.lineN+i.size&&(r.externalMeasured=null),!(t<r.viewFrom||t>=r.viewTo)){var o=r.view[cr(e,t)];if(null!=o.node){var l=o.changes||(o.changes=[]);-1==R(l,n)&&l.push(n)}}}function fr(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function pr(e,t,n,r){var i,o=cr(e,t),l=e.display.view;if(!wt||n==e.doc.first+e.doc.size)return{index:o,lineN:n};for(var s=e.display.viewFrom,a=0;a<o;a++)s+=l[a].size;if(s!=t){if(r>0){if(o==l.length-1)return null;i=s+l[o].size-t,o++}else i=s-t;t+=i,n+=i}for(;It(e.doc,n)!=n;){if(o==(r<0?0:l.length-1))return null;n+=r*l[o-(r<0?1:0)].size,o+=r}return{index:o,lineN:n}}function mr(e){for(var t=e.display.view,n=0,r=0;r<t.length;r++){var i=t[r];i.hidden||i.node&&!i.changes||++n}return n}function gr(e){e.display.input.showSelection(e.display.input.prepareSelection())}function vr(e,t){void 0===t&&(t=!0);for(var n=e.doc,r={},i=r.cursors=document.createDocumentFragment(),o=r.selection=document.createDocumentFragment(),l=0;l<n.sel.ranges.length;l++)if(t||l!=n.sel.primIndex){var s=n.sel.ranges[l];if(!(s.from().line>=e.display.viewTo||s.to().line<e.display.viewFrom)){var a=s.empty();(a||e.options.showCursorWhenSelecting)&&xr(e,s.head,i),a||br(e,s,o)}}return r}function xr(e,t,n){var r=Vn(e,t,"div",null,null,!e.options.singleCursorHeightPerLine),i=n.appendChild(A("div"," ","CodeMirror-cursor"));if(i.style.left=r.left+"px",i.style.top=r.top+"px",i.style.height=Math.max(0,r.bottom-r.top)*e.options.cursorHeight+"px",r.other){var o=n.appendChild(A("div"," ","CodeMirror-cursor 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p=Ge(i,d.line),m=Ge(i,f.line),g=Ht(p)==Ht(m),v=h(d.line,d.ch,g?p.text.length+1:null).end,x=h(f.line,g?0:null,f.ch).start;g&&(v.top<x.top-2?(c(v.right,v.top,null,v.bottom),c(s,x.top,x.left,x.bottom)):c(v.right,v.top,x.left-v.right,v.bottom)),v.bottom<x.top&&c(s,v.bottom,null,x.top)}n.appendChild(o)}function kr(e){if(e.state.focused){var t=e.display;clearInterval(t.blinker);var n=!0;t.cursorDiv.style.visibility="",e.options.cursorBlinkRate>0?t.blinker=setInterval((function(){return t.cursorDiv.style.visibility=(n=!n)?"":"hidden"}),e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function wr(e){e.state.focused||(e.display.input.focus(),Sr(e))}function Cr(e){e.state.delayingBlurEvent=!0,setTimeout((function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,Lr(e))}),100)}function Sr(e,t){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(pe(e,"focus",e,t),e.state.focused=!0,E(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),a&&setTimeout((function(){return e.display.input.reset(!0)}),20)),e.display.input.receivedFocus()),kr(e))}function Lr(e,t){e.state.delayingBlurEvent||(e.state.focused&&(pe(e,"blur",e,t),e.state.focused=!1,T(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout((function(){e.state.focused||(e.display.shift=!1)}),150))}function Tr(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=0;r<t.view.length;r++){var i=t.view[r],o=e.options.lineWrapping,a=void 0,u=0;if(!i.hidden){if(l&&s<8){var c=i.node.offsetTop+i.node.offsetHeight;a=c-n,n=c}else{var h=i.node.getBoundingClientRect();a=h.bottom-h.top,!o&&i.text.firstChild&&(u=i.text.firstChild.getBoundingClientRect().right-h.left-1)}var d=i.line.height-a;if((d>.005||d<-.005)&&(Xe(i.line,a),Mr(i.line),i.rest))for(var f=0;f<i.rest.length;f++)Mr(i.rest[f]);if(u>e.display.sizerWidth){var p=Math.ceil(u/ir(e.display));p>e.display.maxLineLength&&(e.display.maxLineLength=p,e.display.maxLine=i.line,e.display.maxLineChanged=!0)}}}}function Mr(e){if(e.widgets)for(var t=0;t<e.widgets.length;++t){var n=e.widgets[t],r=n.node.parentNode;r&&(n.height=r.offsetHeight)}}function Dr(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop;r=Math.floor(r-Cn(e));var i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=Ye(t,r),l=Ye(t,i);if(n&&n.ensure){var s=n.ensure.from.line,a=n.ensure.to.line;s<o?(o=s,l=Ye(t,$t(Ge(t,s))+e.wrapper.clientHeight)):Math.min(a,t.lastLine())>=l&&(o=Ye(t,$t(Ge(t,a))-e.wrapper.clientHeight),l=a)}return{from:o,to:Math.max(l,o+1)}}function Ar(e,t){var n=e.display,r=rr(e.display);t.top<0&&(t.top=0);var i=e.curOp&&null!=e.curOp.scrollTop?e.curOp.scrollTop:n.scroller.scrollTop,o=Dn(e),l={};t.bottom-t.top>o&&(t.bottom=t.top+o);var s=e.doc.height+Sn(n),a=t.top<r,u=t.bottom>s-r;if(t.top<i)l.scrollTop=a?0:t.top;else if(t.bottom>i+o){var c=Math.min(t.top,(u?s:t.bottom)-o);c!=i&&(l.scrollTop=c)}var h=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:n.scroller.scrollLeft,d=Mn(e)-(e.options.fixedGutter?n.gutters.offsetWidth:0),f=t.right-t.left>d;return f&&(t.right=t.left+d),t.left<10?l.scrollLeft=0:t.left<h?l.scrollLeft=Math.max(0,t.left-(f?0:10)):t.right>d+h-3&&(l.scrollLeft=t.right+(f?0:10)-d),l}function Fr(e,t){null!=t&&(Er(e),e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc.scrollTop:e.curOp.scrollTop)+t)}function Nr(e){Er(e);var t=e.getCursor();e.curOp.scrollToPos={from:t,to:t,margin:e.options.cursorScrollMargin}}function Or(e,t,n){null==t&&null==n||Er(e),null!=t&&(e.curOp.scrollLeft=t),null!=n&&(e.curOp.scrollTop=n)}function Er(e){var t=e.curOp.scrollToPos;t&&(e.curOp.scrollToPos=null,Wr(e,Kn(e,t.from),Kn(e,t.to),t.margin))}function Wr(e,t,n,r){var i=Ar(e,{left:Math.min(t.left,n.left),top:Math.min(t.top,n.top)-r,right:Math.max(t.right,n.right),bottom:Math.max(t.bottom,n.bottom)+r});Or(e,i.scrollLeft,i.scrollTop)}function zr(e,t){Math.abs(e.doc.scrollTop-t)<2||(n||ai(e,{top:t}),_r(e,t,!0),n&&ai(e),ri(e,100))}function _r(e,t,n){t=Math.max(0,Math.min(e.display.scroller.scrollHeight-e.display.scroller.clientHeight,t)),(e.display.scroller.scrollTop!=t||n)&&(e.doc.scrollTop=t,e.display.scrollbars.setScrollTop(t),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t))}function Pr(e,t,n,r){t=Math.max(0,Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth)),(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)&&!r||(e.doc.scrollLeft=t,hi(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function Hr(e){var t=e.display,n=t.gutters.offsetWidth,r=Math.round(e.doc.height+Sn(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:r,scrollHeight:r+Tn(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}var Ir=function(e,t,n){this.cm=n;var r=this.vert=A("div",[A("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),i=this.horiz=A("div",[A("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");r.tabIndex=i.tabIndex=-1,e(r),e(i),he(r,"scroll",(function(){r.clientHeight&&t(r.scrollTop,"vertical")})),he(i,"scroll",(function(){i.clientWidth&&t(i.scrollLeft,"horizontal")})),this.checkedZeroWidth=!1,l&&s<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")};Ir.prototype.update=function(e){var t=e.scrollWidth>e.clientWidth+1,n=e.scrollHeight>e.clientHeight+1,r=e.nativeBarWidth;if(n){this.vert.style.display="block",this.vert.style.bottom=t?r+"px":"0";var i=e.viewHeight-(t?r:0);this.vert.firstChild.style.height=Math.max(0,e.scrollHeight-e.clientHeight+i)+"px"}else this.vert.style.display="",this.vert.firstChild.style.height="0";if(t){this.horiz.style.display="block",this.horiz.style.right=n?r+"px":"0",this.horiz.style.left=e.barLeft+"px";var o=e.viewWidth-e.barLeft-(n?r:0);this.horiz.firstChild.style.width=Math.max(0,e.scrollWidth-e.clientWidth+o)+"px"}else this.horiz.style.display="",this.horiz.firstChild.style.width="0";return!this.checkedZeroWidth&&e.clientHeight>0&&(0==r&&this.zeroWidthHack(),this.checkedZeroWidth=!0),{right:n?r:0,bottom:t?r:0}},Ir.prototype.setScrollLeft=function(e){this.horiz.scrollLeft!=e&&(this.horiz.scrollLeft=e),this.disableHoriz&&this.enableZeroWidthBar(this.horiz,this.disableHoriz,"horiz")},Ir.prototype.setScrollTop=function(e){this.vert.scrollTop!=e&&(this.vert.scrollTop=e),this.disableVert&&this.enableZeroWidthBar(this.vert,this.disableVert,"vert")},Ir.prototype.zeroWidthHack=function(){var e=x&&!f?"12px":"18px";this.horiz.style.height=this.vert.style.width=e,this.horiz.style.pointerEvents=this.vert.style.pointerEvents="none",this.disableHoriz=new I,this.disableVert=new I},Ir.prototype.enableZeroWidthBar=function(e,t,n){e.style.pointerEvents="auto",t.set(1e3,(function r(){var i=e.getBoundingClientRect();("vert"==n?document.elementFromPoint(i.right-1,(i.top+i.bottom)/2):document.elementFromPoint((i.right+i.left)/2,i.bottom-1))!=e?e.style.pointerEvents="none":t.set(1e3,r)}))},Ir.prototype.clear=function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)};var Rr=function(){};function Br(e,t){t||(t=Hr(e));var n=e.display.barWidth,r=e.display.barHeight;jr(e,t);for(var i=0;i<4&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&Tr(e),jr(e,Hr(e)),n=e.display.barWidth,r=e.display.barHeight}function jr(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",n.heightForcer.style.borderBottom=r.bottom+"px solid transparent",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}Rr.prototype.update=function(){return{bottom:0,right:0}},Rr.prototype.setScrollLeft=function(){},Rr.prototype.setScrollTop=function(){},Rr.prototype.clear=function(){};var $r={native:Ir,null:Rr};function qr(e){e.display.scrollbars&&(e.display.scrollbars.clear(),e.display.scrollbars.addClass&&T(e.display.wrapper,e.display.scrollbars.addClass)),e.display.scrollbars=new $r[e.options.scrollbarStyle]((function(t){e.display.wrapper.insertBefore(t,e.display.scrollbarFiller),he(t,"mousedown",(function(){e.state.focused&&setTimeout((function(){return e.display.input.focus()}),0)})),t.setAttribute("cm-not-content","true")}),(function(t,n){"horizontal"==n?Pr(e,t):zr(e,t)}),e),e.display.scrollbars.addClass&&E(e.display.wrapper,e.display.scrollbars.addClass)}var Ur=0;function Gr(e){var t;e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:0,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Ur},t=e.curOp,ln?ln.ops.push(t):t.ownsGroup=ln={ops:[t],delayedCallbacks:[]}}function Vr(e){var t=e.curOp;t&&function(e,t){var n=e.ownsGroup;if(n)try{!function(e){var t=e.delayedCallbacks,n=0;do{for(;n<t.length;n++)t[n].call(null);for(var r=0;r<e.ops.length;r++){var i=e.ops[r];if(i.cursorActivityHandlers)for(;i.cursorActivityCalled<i.cursorActivityHandlers.length;)i.cursorActivityHandlers[i.cursorActivityCalled++].call(null,i.cm)}}while(n<t.length)}(n)}finally{ln=null,t(n)}}(t,(function(e){for(var t=0;t<e.ops.length;t++)e.ops[t].cm.curOp=null;!function(e){for(var t=e.ops,n=0;n<t.length;n++)Kr(t[n]);for(var r=0;r<t.length;r++)Xr(t[r]);for(var i=0;i<t.length;i++)Zr(t[i]);for(var o=0;o<t.length;o++)Yr(t[o]);for(var l=0;l<t.length;l++)Qr(t[l])}(e)}))}function Kr(e){var t=e.cm,n=t.display;!function(e){var t=e.display;!t.scrollbarsClipped&&t.scroller.offsetWidth&&(t.nativeBarWidth=t.scroller.offsetWidth-t.scroller.clientWidth,t.heightForcer.style.height=Tn(e)+"px",t.sizer.style.marginBottom=-t.nativeBarWidth+"px",t.sizer.style.borderRightWidth=Tn(e)+"px",t.scrollbarsClipped=!0)}(t),e.updateMaxLine&&Ut(t),e.mustUpdate=e.viewChanged||e.forceUpdate||null!=e.scrollTop||e.scrollToPos&&(e.scrollToPos.from.line<n.viewFrom||e.scrollToPos.to.line>=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new oi(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function Xr(e){e.updatedDisplay=e.mustUpdate&&li(e.cm,e.update)}function Zr(e){var t=e.cm,n=t.display;e.updatedDisplay&&Tr(t),e.barMeasure=Hr(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Fn(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Tn(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-Mn(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}function Yr(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeft<t.doc.scrollLeft&&Pr(t,Math.min(t.display.scroller.scrollLeft,e.maxScrollLeft),!0),t.display.maxLineChanged=!1);var n=e.focus&&e.focus==O();e.preparedSelection&&t.display.input.showSelection(e.preparedSelection,n),(e.updatedDisplay||e.startHeight!=t.doc.height)&&Br(t,e.barMeasure),e.updatedDisplay&&ci(t,e.barMeasure),e.selectionChanged&&kr(t),t.state.focused&&e.updateInput&&t.display.input.reset(e.typing),n&&wr(e.cm)}function Qr(e){var t=e.cm,n=t.display,r=t.doc;e.updatedDisplay&&si(t,e.update),null==n.wheelStartX||null==e.scrollTop&&null==e.scrollLeft&&!e.scrollToPos||(n.wheelStartX=n.wheelStartY=null),null!=e.scrollTop&&_r(t,e.scrollTop,e.forceScroll),null!=e.scrollLeft&&Pr(t,e.scrollLeft,!0,!0),e.scrollToPos&&function(e,t){if(!me(e,"scrollCursorIntoView")){var n=e.display,r=n.sizer.getBoundingClientRect(),i=null;if(t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null!=i&&!p){var o=A("div","​",null,"position: absolute;\n                         top: "+(t.top-n.viewOffset-Cn(e.display))+"px;\n                         height: "+(t.bottom-t.top+Tn(e)+n.barHeight)+"px;\n                         left: "+t.left+"px; width: "+Math.max(2,t.right-t.left)+"px;");e.display.lineSpace.appendChild(o),o.scrollIntoView(i),e.display.lineSpace.removeChild(o)}}}(t,function(e,t,n,r){var i;null==r&&(r=0),e.options.lineWrapping||t!=n||(n="before"==(t=t.ch?et(t.line,"before"==t.sticky?t.ch-1:t.ch,"after"):t).sticky?et(t.line,t.ch+1,"before"):t);for(var o=0;o<5;o++){var l=!1,s=Vn(e,t),a=n&&n!=t?Vn(e,n):s,u=Ar(e,i={left:Math.min(s.left,a.left),top:Math.min(s.top,a.top)-r,right:Math.max(s.left,a.left),bottom:Math.max(s.bottom,a.bottom)+r}),c=e.doc.scrollTop,h=e.doc.scrollLeft;if(null!=u.scrollTop&&(zr(e,u.scrollTop),Math.abs(e.doc.scrollTop-c)>1&&(l=!0)),null!=u.scrollLeft&&(Pr(e,u.scrollLeft),Math.abs(e.doc.scrollLeft-h)>1&&(l=!0)),!l)break}return i}(t,st(r,e.scrollToPos.from),st(r,e.scrollToPos.to),e.scrollToPos.margin));var i=e.maybeHiddenMarkers,o=e.maybeUnhiddenMarkers;if(i)for(var l=0;l<i.length;++l)i[l].lines.length||pe(i[l],"hide");if(o)for(var s=0;s<o.length;++s)o[s].lines.length&&pe(o[s],"unhide");n.wrapper.offsetHeight&&(r.scrollTop=t.display.scroller.scrollTop),e.changeObjs&&pe(t,"changes",t,e.changeObjs),e.update&&e.update.finish()}function Jr(e,t){if(e.curOp)return t();Gr(e);try{return t()}finally{Vr(e)}}function ei(e,t){return function(){if(e.curOp)return t.apply(e,arguments);Gr(e);try{return t.apply(e,arguments)}finally{Vr(e)}}}function ti(e){return function(){if(this.curOp)return e.apply(this,arguments);Gr(this);try{return e.apply(this,arguments)}finally{Vr(this)}}}function ni(e){return function(){var t=this.cm;if(!t||t.curOp)return e.apply(this,arguments);Gr(t);try{return e.apply(this,arguments)}finally{Vr(t)}}}function ri(e,t){e.doc.highlightFrontier<e.display.viewTo&&e.state.highlight.set(t,_(ii,e))}function ii(e){var t=e.doc;if(!(t.highlightFrontier>=e.display.viewTo)){var n=+new Date+e.options.workTime,r=ft(e,t.highlightFrontier),i=[];t.iter(r.line,Math.min(t.first+t.size,e.display.viewTo+500),(function(o){if(r.line>=e.display.viewFrom){var l=o.styles,s=o.text.length>e.options.maxHighlightLength?je(t.mode,r.state):null,a=ht(e,o,r,!0);s&&(r.state=s),o.styles=a.styles;var u=o.styleClasses,c=a.classes;c?o.styleClasses=c:u&&(o.styleClasses=null);for(var h=!l||l.length!=o.styles.length||u!=c&&(!u||!c||u.bgClass!=c.bgClass||u.textClass!=c.textClass),d=0;!h&&d<l.length;++d)h=l[d]!=o.styles[d];h&&i.push(r.line),o.stateAfter=r.save(),r.nextLine()}else o.text.length<=e.options.maxHighlightLength&&pt(e,o.text,r),o.stateAfter=r.line%5==0?r.save():null,r.nextLine();if(+new Date>n)return ri(e,e.options.workDelay),!0})),t.highlightFrontier=r.line,t.modeFrontier=Math.max(t.modeFrontier,r.line),i.length&&Jr(e,(function(){for(var t=0;t<i.length;t++)dr(e,i[t],"text")}))}}var oi=function(e,t,n){var r=e.display;this.viewport=t,this.visible=Dr(r,e.doc,t),this.editorIsHidden=!r.wrapper.offsetWidth,this.wrapperHeight=r.wrapper.clientHeight,this.wrapperWidth=r.wrapper.clientWidth,this.oldDisplayWidth=Mn(e),this.force=n,this.dims=or(e),this.events=[]};function li(e,t){var n=e.display,r=e.doc;if(t.editorIsHidden)return fr(e),!1;if(!t.force&&t.visible.from>=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==mr(e))return!1;di(e)&&(fr(e),t.dims=or(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),l=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFrom<o&&o-n.viewFrom<20&&(o=Math.max(r.first,n.viewFrom)),n.viewTo>l&&n.viewTo-l<20&&(l=Math.min(i,n.viewTo)),wt&&(o=It(e.doc,o),l=Rt(e.doc,l));var s=o!=n.viewFrom||l!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;!function(e,t,n){var r=e.display;0==r.view.length||t>=r.viewTo||n<=r.viewFrom?(r.view=on(e,t,n),r.viewFrom=t):(r.viewFrom>t?r.view=on(e,t,r.viewFrom).concat(r.view):r.viewFrom<t&&(r.view=r.view.slice(cr(e,t))),r.viewFrom=t,r.viewTo<n?r.view=r.view.concat(on(e,r.viewTo,n)):r.viewTo>n&&(r.view=r.view.slice(0,cr(e,n)))),r.viewTo=n}(e,o,l),n.viewOffset=$t(Ge(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var u=mr(e);if(!s&&0==u&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var c=function(e){if(e.hasFocus())return null;var t=O();if(!t||!N(e.display.lineDiv,t))return null;var n={activeElt:t};if(window.getSelection){var r=window.getSelection();r.anchorNode&&r.extend&&N(e.display.lineDiv,r.anchorNode)&&(n.anchorNode=r.anchorNode,n.anchorOffset=r.anchorOffset,n.focusNode=r.focusNode,n.focusOffset=r.focusOffset)}return n}(e);return u>4&&(n.lineDiv.style.display="none"),function(e,t,n){var r=e.display,i=e.options.lineNumbers,o=r.lineDiv,l=o.firstChild;function s(t){var n=t.nextSibling;return a&&x&&e.display.currentWheelTarget==t?t.style.display="none":t.parentNode.removeChild(t),n}for(var u=r.view,c=r.viewFrom,h=0;h<u.length;h++){var d=u[h];if(d.hidden);else if(d.node&&d.node.parentNode==o){for(;l!=d.node;)l=s(l);var f=i&&null!=t&&t<=c&&d.lineNumber;d.changes&&(R(d.changes,"gutter")>-1&&(f=!1),cn(e,d,c,n)),f&&(M(d.lineNumber),d.lineNumber.appendChild(document.createTextNode(Je(e.options,c)))),l=d.node.nextSibling}else{var p=vn(e,d,c,n);o.insertBefore(p,l)}c+=d.size}for(;l;)l=s(l)}(e,n.updateLineNumbers,t.dims),u>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,function(e){if(e&&e.activeElt&&e.activeElt!=O()&&(e.activeElt.focus(),e.anchorNode&&N(document.body,e.anchorNode)&&N(document.body,e.focusNode))){var t=window.getSelection(),n=document.createRange();n.setEnd(e.anchorNode,e.anchorOffset),n.collapse(!1),t.removeAllRanges(),t.addRange(n),t.extend(e.focusNode,e.focusOffset)}}(c),M(n.cursorDiv),M(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,s&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,ri(e,400)),n.updateLineNumbers=null,!0}function si(e,t){for(var n=t.viewport,r=!0;(r&&e.options.lineWrapping&&t.oldDisplayWidth!=Mn(e)||(n&&null!=n.top&&(n={top:Math.min(e.doc.height+Sn(e.display)-Dn(e),n.top)}),t.visible=Dr(e.display,e.doc,n),!(t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)))&&li(e,t);r=!1){Tr(e);var i=Hr(e);gr(e),Br(e,i),ci(e,i),t.force=!1}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function ai(e,t){var n=new oi(e,t);if(li(e,n)){Tr(e),si(e,n);var r=Hr(e);gr(e),Br(e,r),ci(e,r),n.finish()}}function ui(e){var t=e.gutters.offsetWidth;e.sizer.style.marginLeft=t+"px"}function ci(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+Tn(e)+"px"}function hi(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=lr(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",l=0;l<n.length;l++)if(!n[l].hidden){e.options.fixedGutter&&(n[l].gutter&&(n[l].gutter.style.left=o),n[l].gutterBackground&&(n[l].gutterBackground.style.left=o));var s=n[l].alignable;if(s)for(var a=0;a<s.length;a++)s[a].style.left=o}e.options.fixedGutter&&(t.gutters.style.left=r+i+"px")}}function di(e){if(!e.options.lineNumbers)return!1;var t=e.doc,n=Je(e.options,t.first+t.size-1),r=e.display;if(n.length!=r.lineNumChars){var i=r.measure.appendChild(A("div",[A("div",n)],"CodeMirror-linenumber CodeMirror-gutter-elt")),o=i.firstChild.offsetWidth,l=i.offsetWidth-o;return r.lineGutter.style.width="",r.lineNumInnerWidth=Math.max(o,r.lineGutter.offsetWidth-l)+1,r.lineNumWidth=r.lineNumInnerWidth+l,r.lineNumChars=r.lineNumInnerWidth?n.length:-1,r.lineGutter.style.width=r.lineNumWidth+"px",ui(e.display),!0}return!1}function fi(e,t){for(var n=[],r=!1,i=0;i<e.length;i++){var o=e[i],l=null;if("string"!=typeof o&&(l=o.style,o=o.className),"CodeMirror-linenumbers"==o){if(!t)continue;r=!0}n.push({className:o,style:l})}return t&&!r&&n.push({className:"CodeMirror-linenumbers",style:null}),n}function pi(e){var t=e.gutters,n=e.gutterSpecs;M(t),e.lineGutter=null;for(var r=0;r<n.length;++r){var i=n[r],o=i.className,l=i.style,s=t.appendChild(A("div",null,"CodeMirror-gutter 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e=0;e<this.events.length;e++)pe.apply(null,this.events[e])};var vi=0,xi=null;function yi(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}}function bi(e){var t=yi(e);return t.x*=xi,t.y*=xi,t}function ki(e,t){var r=yi(t),i=r.x,o=r.y,l=e.display,s=l.scroller,u=s.scrollWidth>s.clientWidth,c=s.scrollHeight>s.clientHeight;if(i&&u||o&&c){if(o&&x&&a)e:for(var d=t.target,f=l.view;d!=s;d=d.parentNode)for(var p=0;p<f.length;p++)if(f[p].node==d){e.display.currentWheelTarget=d;break e}if(i&&!n&&!h&&null!=xi)return o&&c&&zr(e,Math.max(0,s.scrollTop+o*xi)),Pr(e,Math.max(0,s.scrollLeft+i*xi)),(!o||o&&c)&&ye(t),void(l.wheelStartX=null);if(o&&null!=xi){var m=o*xi,g=e.doc.scrollTop,v=g+l.wrapper.clientHeight;m<0?g=Math.max(0,g+m-50):v=Math.min(e.doc.height,v+m+50),ai(e,{top:g,bottom:v})}vi<20&&(null==l.wheelStartX?(l.wheelStartX=s.scrollLeft,l.wheelStartY=s.scrollTop,l.wheelDX=i,l.wheelDY=o,setTimeout((function(){if(null!=l.wheelStartX){var e=s.scrollLeft-l.wheelStartX,t=s.scrollTop-l.wheelStartY,n=t&&l.wheelDY&&t/l.wheelDY||e&&l.wheelDX&&e/l.wheelDX;l.wheelStartX=l.wheelStartY=null,n&&(xi=(xi*vi+n)/(vi+1),++vi)}}),200)):(l.wheelDX+=i,l.wheelDY+=o))}}l?xi=-.53:n?xi=15:c?xi=-.7:d&&(xi=-1/3);var wi=function(e,t){this.ranges=e,this.primIndex=t};wi.prototype.primary=function(){return this.ranges[this.primIndex]},wi.prototype.equals=function(e){if(e==this)return!0;if(e.primIndex!=this.primIndex||e.ranges.length!=this.ranges.length)return!1;for(var t=0;t<this.ranges.length;t++){var n=this.ranges[t],r=e.ranges[t];if(!nt(n.anchor,r.anchor)||!nt(n.head,r.head))return!1}return!0},wi.prototype.deepCopy=function(){for(var e=[],t=0;t<this.ranges.length;t++)e[t]=new Ci(rt(this.ranges[t].anchor),rt(this.ranges[t].head));return new wi(e,this.primIndex)},wi.prototype.somethingSelected=function(){for(var e=0;e<this.ranges.length;e++)if(!this.ranges[e].empty())return!0;return!1},wi.prototype.contains=function(e,t){t||(t=e);for(var n=0;n<this.ranges.length;n++){var r=this.ranges[n];if(tt(t,r.from())>=0&&tt(e,r.to())<=0)return n}return-1};var Ci=function(e,t){this.anchor=e,this.head=t};function Si(e,t,n){var r=e&&e.options.selectionsMayTouch,i=t[n];t.sort((function(e,t){return tt(e.from(),t.from())})),n=R(t,i);for(var o=1;o<t.length;o++){var l=t[o],s=t[o-1],a=tt(s.to(),l.from());if(r&&!l.empty()?a>0:a>=0){var u=ot(s.from(),l.from()),c=it(s.to(),l.to()),h=s.empty()?l.from()==l.head:s.from()==s.head;o<=n&&--n,t.splice(--o,2,new Ci(h?c:u,h?u:c))}}return new wi(t,n)}function Li(e,t){return new wi([new Ci(e,t||e)],0)}function Ti(e){return e.text?et(e.from.line+e.text.length-1,K(e.text).length+(1==e.text.length?e.from.ch:0)):e.to}function Mi(e,t){if(tt(e,t.from)<0)return e;if(tt(e,t.to)<=0)return Ti(t);var n=e.line+t.text.length-(t.to.line-t.from.line)-1,r=e.ch;return e.line==t.to.line&&(r+=Ti(t).ch-t.to.ch),et(n,r)}function Di(e,t){for(var n=[],r=0;r<e.sel.ranges.length;r++){var i=e.sel.ranges[r];n.push(new Ci(Mi(i.anchor,t),Mi(i.head,t)))}return Si(e.cm,n,e.sel.primIndex)}function Ai(e,t,n){return e.line==t.line?et(n.line,e.ch-t.ch+n.ch):et(n.line+(e.line-t.line),e.ch)}function Fi(e){e.doc.mode=Ie(e.options,e.doc.modeOption),Ni(e)}function Ni(e){e.doc.iter((function(e){e.stateAfter&&(e.stateAfter=null),e.styles&&(e.styles=null)})),e.doc.modeFrontier=e.doc.highlightFrontier=e.doc.first,ri(e,100),e.state.modeGen++,e.curOp&&hr(e)}function Oi(e,t){return 0==t.from.ch&&0==t.to.ch&&""==K(t.text)&&(!e.cm||e.cm.options.wholeLineUpdateBefore)}function Ei(e,t,n,r){function i(e){return n?n[e]:null}function o(e,n,i){!function(e,t,n,r){e.text=t,e.stateAfter&&(e.stateAfter=null),e.styles&&(e.styles=null),null!=e.order&&(e.order=null),Dt(e),At(e,n);var i=r?r(e):1;i!=e.height&&Xe(e,i)}(e,n,i,r),an(e,"change",e,t)}function l(e,t){for(var n=[],o=e;o<t;++o)n.push(new Gt(u[o],i(o),r));return n}var s=t.from,a=t.to,u=t.text,c=Ge(e,s.line),h=Ge(e,a.line),d=K(u),f=i(u.length-1),p=a.line-s.line;if(t.full)e.insert(0,l(0,u.length)),e.remove(u.length,e.size-u.length);else if(Oi(e,t)){var m=l(0,u.length-1);o(h,h.text,f),p&&e.remove(s.line,p),m.length&&e.insert(s.line,m)}else if(c==h)if(1==u.length)o(c,c.text.slice(0,s.ch)+d+c.text.slice(a.ch),f);else{var g=l(1,u.length-1);g.push(new Gt(d+c.text.slice(a.ch),f,r)),o(c,c.text.slice(0,s.ch)+u[0],i(0)),e.insert(s.line+1,g)}else if(1==u.length)o(c,c.text.slice(0,s.ch)+u[0]+h.text.slice(a.ch),i(0)),e.remove(s.line+1,p);else{o(c,c.text.slice(0,s.ch)+u[0],i(0)),o(h,d+h.text.slice(a.ch),f);var v=l(1,u.length-1);p>1&&e.remove(s.line+1,p-1),e.insert(s.line+1,v)}an(e,"change",e,t)}function Wi(e,t,n){!function e(r,i,o){if(r.linked)for(var l=0;l<r.linked.length;++l){var s=r.linked[l];if(s.doc!=i){var a=o&&s.sharedHist;n&&!a||(t(s.doc,a),e(s.doc,r,a))}}}(e,null,!0)}function zi(e,t){if(t.cm)throw new Error("This document is already in use.");e.doc=t,t.cm=e,ar(e),Fi(e),_i(e),e.options.lineWrapping||Ut(e),e.options.mode=t.modeOption,hr(e)}function _i(e){("rtl"==e.doc.direction?E:T)(e.display.lineDiv,"CodeMirror-rtl")}function Pi(e){this.done=[],this.undone=[],this.undoDepth=1/0,this.lastModTime=this.lastSelTime=0,this.lastOp=this.lastSelOp=null,this.lastOrigin=this.lastSelOrigin=null,this.generation=this.maxGeneration=e||1}function Hi(e,t){var n={from:rt(t.from),to:Ti(t),text:Ve(e,t.from,t.to)};return $i(e,n,t.from.line,t.to.line+1),Wi(e,(function(e){return $i(e,n,t.from.line,t.to.line+1)}),!0),n}function Ii(e){for(;e.length&&K(e).ranges;)e.pop()}function Ri(e,t,n,r){var i=e.history;i.undone.length=0;var o,l,s=+new Date;if((i.lastOp==r||i.lastOrigin==t.origin&&t.origin&&("+"==t.origin.charAt(0)&&i.lastModTime>s-(e.cm?e.cm.options.historyEventDelay:500)||"*"==t.origin.charAt(0)))&&(o=function(e,t){return t?(Ii(e.done),K(e.done)):e.done.length&&!K(e.done).ranges?K(e.done):e.done.length>1&&!e.done[e.done.length-2].ranges?(e.done.pop(),K(e.done)):void 0}(i,i.lastOp==r)))l=K(o.changes),0==tt(t.from,t.to)&&0==tt(t.from,l.to)?l.to=Ti(t):o.changes.push(Hi(e,t));else{var a=K(i.done);for(a&&a.ranges||ji(e.sel,i.done),o={changes:[Hi(e,t)],generation:i.generation},i.done.push(o);i.done.length>i.undoDepth;)i.done.shift(),i.done[0].ranges||i.done.shift()}i.done.push(n),i.generation=++i.maxGeneration,i.lastModTime=i.lastSelTime=s,i.lastOp=i.lastSelOp=r,i.lastOrigin=i.lastSelOrigin=t.origin,l||pe(e,"historyAdded")}function Bi(e,t,n,r){var i=e.history,o=r&&r.origin;n==i.lastSelOp||o&&i.lastSelOrigin==o&&(i.lastModTime==i.lastSelTime&&i.lastOrigin==o||function(e,t,n,r){var i=t.charAt(0);return"*"==i||"+"==i&&n.ranges.length==r.ranges.length&&n.somethingSelected()==r.somethingSelected()&&new Date-e.history.lastSelTime<=(e.cm?e.cm.options.historyEventDelay:500)}(e,o,K(i.done),t))?i.done[i.done.length-1]=t:ji(t,i.done),i.lastSelTime=+new Date,i.lastSelOrigin=o,i.lastSelOp=n,r&&!1!==r.clearRedo&&Ii(i.undone)}function ji(e,t){var n=K(t);n&&n.ranges&&n.equals(e)||t.push(e)}function $i(e,t,n,r){var i=t["spans_"+e.id],o=0;e.iter(Math.max(e.first,n),Math.min(e.first+e.size,r),(function(n){n.markedSpans&&((i||(i=t["spans_"+e.id]={}))[o]=n.markedSpans),++o}))}function qi(e){if(!e)return null;for(var t,n=0;n<e.length;++n)e[n].marker.explicitlyCleared?t||(t=e.slice(0,n)):t&&t.push(e[n]);return t?t.length?t:null:e}function Ui(e,t){var n=function(e,t){var n=t["spans_"+e.id];if(!n)return null;for(var r=[],i=0;i<t.text.length;++i)r.push(qi(n[i]));return r}(e,t),r=Tt(e,t);if(!n)return r;if(!r)return n;for(var i=0;i<n.length;++i){var o=n[i],l=r[i];if(o&&l)e:for(var s=0;s<l.length;++s){for(var a=l[s],u=0;u<o.length;++u)if(o[u].marker==a.marker)continue e;o.push(a)}else l&&(n[i]=l)}return n}function Gi(e,t,n){for(var r=[],i=0;i<e.length;++i){var o=e[i];if(o.ranges)r.push(n?wi.prototype.deepCopy.call(o):o);else{var l=o.changes,s=[];r.push({changes:s});for(var a=0;a<l.length;++a){var u=l[a],c=void 0;if(s.push({from:u.from,to:u.to,text:u.text}),t)for(var h in u)(c=h.match(/^spans_(\d+)$/))&&R(t,Number(c[1]))>-1&&(K(s)[h]=u[h],delete u[h])}}}return r}function Vi(e,t,n,r){if(r){var i=e.anchor;if(n){var o=tt(t,i)<0;o!=tt(n,i)<0?(i=t,t=n):o!=tt(t,n)<0&&(t=n)}return new Ci(i,t)}return new Ci(n||t,t)}function Ki(e,t,n,r,i){null==i&&(i=e.cm&&(e.cm.display.shift||e.extend)),Ji(e,new wi([Vi(e.sel.primary(),t,n,i)],0),r)}function Xi(e,t,n){for(var r=[],i=e.cm&&(e.cm.display.shift||e.extend),o=0;o<e.sel.ranges.length;o++)r[o]=Vi(e.sel.ranges[o],t[o],null,i);Ji(e,Si(e.cm,r,e.sel.primIndex),n)}function Zi(e,t,n,r){var i=e.sel.ranges.slice(0);i[t]=n,Ji(e,Si(e.cm,i,e.sel.primIndex),r)}function Yi(e,t,n,r){Ji(e,Li(t,n),r)}function Qi(e,t,n){var r=e.history.done,i=K(r);i&&i.ranges?(r[r.length-1]=t,eo(e,t,n)):Ji(e,t,n)}function Ji(e,t,n){eo(e,t,n),Bi(e,e.sel,e.cm?e.cm.curOp.id:NaN,n)}function eo(e,t,n){(ve(e,"beforeSelectionChange")||e.cm&&ve(e.cm,"beforeSelectionChange"))&&(t=function(e,t,n){var r={ranges:t.ranges,update:function(t){this.ranges=[];for(var n=0;n<t.length;n++)this.ranges[n]=new Ci(st(e,t[n].anchor),st(e,t[n].head))},origin:n&&n.origin};return pe(e,"beforeSelectionChange",e,r),e.cm&&pe(e.cm,"beforeSelectionChange",e.cm,r),r.ranges!=t.ranges?Si(e.cm,r.ranges,r.ranges.length-1):t}(e,t,n));var r=n&&n.bias||(tt(t.primary().head,e.sel.primary().head)<0?-1:1);to(e,ro(e,t,r,!0)),n&&!1===n.scroll||!e.cm||Nr(e.cm)}function to(e,t){t.equals(e.sel)||(e.sel=t,e.cm&&(e.cm.curOp.updateInput=1,e.cm.curOp.selectionChanged=!0,ge(e.cm)),an(e,"cursorActivity",e))}function no(e){to(e,ro(e,e.sel,null,!1))}function ro(e,t,n,r){for(var i,o=0;o<t.ranges.length;o++){var l=t.ranges[o],s=t.ranges.length==e.sel.ranges.length&&e.sel.ranges[o],a=oo(e,l.anchor,s&&s.anchor,n,r),u=oo(e,l.head,s&&s.head,n,r);(i||a!=l.anchor||u!=l.head)&&(i||(i=t.ranges.slice(0,o)),i[o]=new Ci(a,u))}return i?Si(e.cm,i,t.primIndex):t}function io(e,t,n,r,i){var o=Ge(e,t.line);if(o.markedSpans)for(var l=0;l<o.markedSpans.length;++l){var s=o.markedSpans[l],a=s.marker,u="selectLeft"in a?!a.selectLeft:a.inclusiveLeft,c="selectRight"in a?!a.selectRight:a.inclusiveRight;if((null==s.from||(u?s.from<=t.ch:s.from<t.ch))&&(null==s.to||(c?s.to>=t.ch:s.to>t.ch))){if(i&&(pe(a,"beforeCursorEnter"),a.explicitlyCleared)){if(o.markedSpans){--l;continue}break}if(!a.atomic)continue;if(n){var h=a.find(r<0?1:-1),d=void 0;if((r<0?c:u)&&(h=lo(e,h,-r,h&&h.line==t.line?o:null)),h&&h.line==t.line&&(d=tt(h,n))&&(r<0?d<0:d>0))return io(e,h,t,r,i)}var f=a.find(r<0?-1:1);return(r<0?u:c)&&(f=lo(e,f,r,f.line==t.line?o:null)),f?io(e,f,t,r,i):null}}return t}function oo(e,t,n,r,i){var o=r||1,l=io(e,t,n,o,i)||!i&&io(e,t,n,o,!0)||io(e,t,n,-o,i)||!i&&io(e,t,n,-o,!0);return l||(e.cantEdit=!0,et(e.first,0))}function lo(e,t,n,r){return n<0&&0==t.ch?t.line>e.first?st(e,et(t.line-1)):null:n>0&&t.ch==(r||Ge(e,t.line)).text.length?t.line<e.first+e.size-1?et(t.line+1,0):null:new et(t.line,t.ch+n)}function so(e){e.setSelection(et(e.firstLine(),0),et(e.lastLine()),j)}function ao(e,t,n){var r={canceled:!1,from:t.from,to:t.to,text:t.text,origin:t.origin,cancel:function(){return r.canceled=!0}};return n&&(r.update=function(t,n,i,o){t&&(r.from=st(e,t)),n&&(r.to=st(e,n)),i&&(r.text=i),void 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i=r.length-1;i>=0;--i)co(e,{from:r[i].from,to:r[i].to,text:i?[""]:t.text,origin:t.origin});else co(e,t)}}function co(e,t){if(1!=t.text.length||""!=t.text[0]||0!=tt(t.from,t.to)){var n=Di(e,t);Ri(e,t,n,e.cm?e.cm.curOp.id:NaN),po(e,t,n,Tt(e,t));var r=[];Wi(e,(function(e,n){n||-1!=R(r,e.history)||(xo(e.history,t),r.push(e.history)),po(e,t,null,Tt(e,t))}))}}function ho(e,t,n){var r=e.cm&&e.cm.state.suppressEdits;if(!r||n){for(var i,o=e.history,l=e.sel,s="undo"==t?o.done:o.undone,a="undo"==t?o.undone:o.done,u=0;u<s.length&&(i=s[u],n?!i.ranges||i.equals(e.sel):i.ranges);u++);if(u!=s.length){for(o.lastOrigin=o.lastSelOrigin=null;;){if(!(i=s.pop()).ranges){if(r)return void s.push(i);break}if(ji(i,a),n&&!i.equals(e.sel))return void Ji(e,i,{clearRedo:!1});l=i}var c=[];ji(l,a),a.push({changes:c,generation:o.generation}),o.generation=i.generation||++o.maxGeneration;for(var h=ve(e,"beforeChange")||e.cm&&ve(e.cm,"beforeChange"),d=function(n){var r=i.changes[n];if(r.origin=t,h&&!ao(e,r,!1))return s.length=0,{};c.push(Hi(e,r));var o=n?Di(e,r):K(s);po(e,r,o,Ui(e,r)),!n&&e.cm&&e.cm.scrollIntoView({from:r.from,to:Ti(r)});var l=[];Wi(e,(function(e,t){t||-1!=R(l,e.history)||(xo(e.history,r),l.push(e.history)),po(e,r,null,Ui(e,r))}))},f=i.changes.length-1;f>=0;--f){var p=d(f);if(p)return p.v}}}}function fo(e,t){if(0!=t&&(e.first+=t,e.sel=new wi(X(e.sel.ranges,(function(e){return new Ci(et(e.anchor.line+t,e.anchor.ch),et(e.head.line+t,e.head.ch))})),e.sel.primIndex),e.cm)){hr(e.cm,e.first,e.first-t,t);for(var n=e.cm.display,r=n.viewFrom;r<n.viewTo;r++)dr(e.cm,r,"gutter")}}function po(e,t,n,r){if(e.cm&&!e.cm.curOp)return ei(e.cm,po)(e,t,n,r);if(t.to.line<e.first)fo(e,t.text.length-1-(t.to.line-t.from.line));else if(!(t.from.line>e.lastLine())){if(t.from.line<e.first){var i=t.text.length-1-(e.first-t.from.line);fo(e,i),t={from:et(e.first,0),to:et(t.to.line+i,t.to.ch),text:[K(t.text)],origin:t.origin}}var o=e.lastLine();t.to.line>o&&(t={from:t.from,to:et(o,Ge(e,o).text.length),text:[t.text[0]],origin:t.origin}),t.removed=Ve(e,t.from,t.to),n||(n=Di(e,t)),e.cm?function(e,t,n){var r=e.doc,i=e.display,o=t.from,l=t.to,s=!1,a=o.line;e.options.lineWrapping||(a=Ze(Ht(Ge(r,o.line))),r.iter(a,l.line+1,(function(e){if(e==i.maxLine)return s=!0,!0}))),r.sel.contains(t.from,t.to)>-1&&ge(e),Ei(r,t,n,sr(e)),e.options.lineWrapping||(r.iter(a,o.line+t.text.length,(function(e){var t=qt(e);t>i.maxLineLength&&(i.maxLine=e,i.maxLineLength=t,i.maxLineChanged=!0,s=!1)})),s&&(e.curOp.updateMaxLine=!0)),function(e,t){if(e.modeFrontier=Math.min(e.modeFrontier,t),!(e.highlightFrontier<t-10)){for(var n=e.first,r=t-1;r>n;r--){var i=Ge(e,r).stateAfter;if(i&&(!(i instanceof ut)||r+i.lookAhead<t)){n=r+1;break}}e.highlightFrontier=Math.min(e.highlightFrontier,n)}}(r,o.line),ri(e,400);var u=t.text.length-(l.line-o.line)-1;t.full?hr(e):o.line!=l.line||1!=t.text.length||Oi(e.doc,t)?hr(e,o.line,l.line+1,u):dr(e,o.line,"text");var c=ve(e,"changes"),h=ve(e,"change");if(h||c){var d={from:o,to:l,text:t.text,removed:t.removed,origin:t.origin};h&&an(e,"change",e,d),c&&(e.curOp.changeObjs||(e.curOp.changeObjs=[])).push(d)}e.display.selForContextMenu=null}(e.cm,t,r):Ei(e,t,r),eo(e,n,j),e.cantEdit&&oo(e,et(e.firstLine(),0))&&(e.cantEdit=!1)}}function mo(e,t,n,r,i){var o;r||(r=n),tt(r,n)<0&&(n=(o=[r,n])[0],r=o[1]),"string"==typeof t&&(t=e.splitLines(t)),uo(e,{from:n,to:r,text:t,origin:i})}function go(e,t,n,r){n<e.line?e.line+=r:t<e.line&&(e.line=t,e.ch=0)}function vo(e,t,n,r){for(var i=0;i<e.length;++i){var o=e[i],l=!0;if(o.ranges){o.copied||((o=e[i]=o.deepCopy()).copied=!0);for(var s=0;s<o.ranges.length;s++)go(o.ranges[s].anchor,t,n,r),go(o.ranges[s].head,t,n,r)}else{for(var a=0;a<o.changes.length;++a){var u=o.changes[a];if(n<u.from.line)u.from=et(u.from.line+r,u.from.ch),u.to=et(u.to.line+r,u.to.ch);else if(t<=u.to.line){l=!1;break}}l||(e.splice(0,i+1),i=0)}}}function xo(e,t){var n=t.from.line,r=t.to.line,i=t.text.length-(r-n)-1;vo(e.done,n,r,i),vo(e.undone,n,r,i)}function yo(e,t,n,r){var i=t,o=t;return"number"==typeof t?o=Ge(e,lt(e,t)):i=Ze(t),null==i?null:(r(o,i)&&e.cm&&dr(e.cm,i,n),o)}function bo(e){this.lines=e,this.parent=null;for(var t=0,n=0;n<e.length;++n)e[n].parent=this,t+=e[n].height;this.height=t}function ko(e){this.children=e;for(var t=0,n=0,r=0;r<e.length;++r){var i=e[r];t+=i.chunkSize(),n+=i.height,i.parent=this}this.size=t,this.height=n,this.parent=null}Ci.prototype.from=function(){return ot(this.anchor,this.head)},Ci.prototype.to=function(){return it(this.anchor,this.head)},Ci.prototype.empty=function(){return this.head.line==this.anchor.line&&this.head.ch==this.anchor.ch},bo.prototype={chunkSize:function(){return this.lines.length},removeInner:function(e,t){for(var n=e,r=e+t;n<r;++n){var i=this.lines[n];this.height-=i.height,Vt(i),an(i,"delete")}this.lines.splice(e,t)},collapse:function(e){e.push.apply(e,this.lines)},insertInner:function(e,t,n){this.height+=n,this.lines=this.lines.slice(0,e).concat(t).concat(this.lines.slice(e));for(var r=0;r<t.length;++r)t[r].parent=this},iterN:function(e,t,n){for(var r=e+t;e<r;++e)if(n(this.lines[e]))return!0}},ko.prototype={chunkSize:function(){return this.size},removeInner:function(e,t){this.size-=t;for(var n=0;n<this.children.length;++n){var r=this.children[n],i=r.chunkSize();if(e<i){var o=Math.min(t,i-e),l=r.height;if(r.removeInner(e,o),this.height-=l-r.height,i==o&&(this.children.splice(n--,1),r.parent=null),0==(t-=o))break;e=0}else e-=i}if(this.size-t<25&&(this.children.length>1||!(this.children[0]instanceof bo))){var s=[];this.collapse(s),this.children=[new bo(s)],this.children[0].parent=this}},collapse:function(e){for(var t=0;t<this.children.length;++t)this.children[t].collapse(e)},insertInner:function(e,t,n){this.size+=t.length,this.height+=n;for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<=o){if(i.insertInner(e,t,n),i.lines&&i.lines.length>50){for(var l=i.lines.length%25+25,s=l;s<i.lines.length;){var a=new bo(i.lines.slice(s,s+=25));i.height-=a.height,this.children.splice(++r,0,a),a.parent=this}i.lines=i.lines.slice(0,l),this.maybeSpill()}break}e-=o}},maybeSpill:function(){if(!(this.children.length<=10)){var e=this;do{var t=new ko(e.children.splice(e.children.length-5,5));if(e.parent){e.size-=t.size,e.height-=t.height;var n=R(e.parent.children,e);e.parent.children.splice(n+1,0,t)}else{var r=new ko(e.children);r.parent=e,e.children=[r,t],e=r}t.parent=e.parent}while(e.children.length>10);e.parent.maybeSpill()}},iterN:function(e,t,n){for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<o){var l=Math.min(t,o-e);if(i.iterN(e,l,n))return!0;if(0==(t-=l))break;e=0}else e-=o}}};var wo=function(e,t,n){if(n)for(var r in n)n.hasOwnProperty(r)&&(this[r]=n[r]);this.doc=e,this.node=t};function Co(e,t,n){$t(t)<(e.curOp&&e.curOp.scrollTop||e.doc.scrollTop)&&Fr(e,n)}wo.prototype.clear=function(){var e=this.doc.cm,t=this.line.widgets,n=this.line,r=Ze(n);if(null!=r&&t){for(var i=0;i<t.length;++i)t[i]==this&&t.splice(i--,1);t.length||(n.widgets=null);var o=kn(this);Xe(n,Math.max(0,n.height-o)),e&&(Jr(e,(function(){Co(e,n,-o),dr(e,r,"widget")})),an(e,"lineWidgetCleared",e,this,r))}},wo.prototype.changed=function(){var e=this,t=this.height,n=this.doc.cm,r=this.line;this.height=null;var i=kn(this)-t;i&&(Bt(this.doc,r)||Xe(r,r.height+i),n&&Jr(n,(function(){n.curOp.forceUpdate=!0,Co(n,r,i),an(n,"lineWidgetChanged",n,e,Ze(r))})))},xe(wo);var So=0,Lo=function(e,t){this.lines=[],this.type=t,this.doc=e,this.id=++So};function To(e,t,n,r,i){if(r&&r.shared)return function(e,t,n,r,i){(r=P(r)).shared=!1;var o=[To(e,t,n,r,i)],l=o[0],s=r.widgetNode;return Wi(e,(function(e){s&&(r.widgetNode=s.cloneNode(!0)),o.push(To(e,st(e,t),st(e,n),r,i));for(var a=0;a<e.linked.length;++a)if(e.linked[a].isParent)return;l=K(o)})),new Mo(o,l)}(e,t,n,r,i);if(e.cm&&!e.cm.curOp)return ei(e.cm,To)(e,t,n,r,i);var o=new Lo(e,i),l=tt(t,n);if(r&&P(r,o,!1),l>0||0==l&&!1!==o.clearWhenEmpty)return o;if(o.replacedWith&&(o.collapsed=!0,o.widgetNode=F("span",[o.replacedWith],"CodeMirror-widget"),r.handleMouseEvents||o.widgetNode.setAttribute("cm-ignore-events","true"),r.insertLeft&&(o.widgetNode.insertLeft=!0)),o.collapsed){if(Pt(e,t.line,t,n,o)||t.line!=n.line&&Pt(e,n.line,t,n,o))throw new Error("Inserting collapsed marker partially overlapping an existing one");wt=!0}o.addToHistory&&Ri(e,{from:t,to:n,origin:"markText"},e.sel,NaN);var s,a=t.line,u=e.cm;if(e.iter(a,n.line+1,(function(e){u&&o.collapsed&&!u.options.lineWrapping&&Ht(e)==u.display.maxLine&&(s=!0),o.collapsed&&a!=t.line&&Xe(e,0),function(e,t){e.markedSpans=e.markedSpans?e.markedSpans.concat([t]):[t],t.marker.attachLine(e)}(e,new Ct(o,a==t.line?t.ch:null,a==n.line?n.ch:null)),++a})),o.collapsed&&e.iter(t.line,n.line+1,(function(t){Bt(e,t)&&Xe(t,0)})),o.clearOnEnter&&he(o,"beforeCursorEnter",(function(){return o.clear()})),o.readOnly&&(kt=!0,(e.history.done.length||e.history.undone.length)&&e.clearHistory()),o.collapsed&&(o.id=++So,o.atomic=!0),u){if(s&&(u.curOp.updateMaxLine=!0),o.collapsed)hr(u,t.line,n.line+1);else if(o.className||o.startStyle||o.endStyle||o.css||o.attributes||o.title)for(var c=t.line;c<=n.line;c++)dr(u,c,"text");o.atomic&&no(u.doc),an(u,"markerAdded",u,o)}return o}Lo.prototype.clear=function(){if(!this.explicitlyCleared){var e=this.doc.cm,t=e&&!e.curOp;if(t&&Gr(e),ve(this,"clear")){var n=this.find();n&&an(this,"clear",n.from,n.to)}for(var r=null,i=null,o=0;o<this.lines.length;++o){var l=this.lines[o],s=St(l.markedSpans,this);e&&!this.collapsed?dr(e,Ze(l),"text"):e&&(null!=s.to&&(i=Ze(l)),null!=s.from&&(r=Ze(l))),l.markedSpans=Lt(l.markedSpans,s),null==s.from&&this.collapsed&&!Bt(this.doc,l)&&e&&Xe(l,rr(e.display))}if(e&&this.collapsed&&!e.options.lineWrapping)for(var a=0;a<this.lines.length;++a){var u=Ht(this.lines[a]),c=qt(u);c>e.display.maxLineLength&&(e.display.maxLine=u,e.display.maxLineLength=c,e.display.maxLineChanged=!0)}null!=r&&e&&this.collapsed&&hr(e,r,i+1),this.lines.length=0,this.explicitlyCleared=!0,this.atomic&&this.doc.cantEdit&&(this.doc.cantEdit=!1,e&&no(e.doc)),e&&an(e,"markerCleared",e,this,r,i),t&&Vr(e),this.parent&&this.parent.clear()}},Lo.prototype.find=function(e,t){var n,r;null==e&&"bookmark"==this.type&&(e=1);for(var i=0;i<this.lines.length;++i){var o=this.lines[i],l=St(o.markedSpans,this);if(null!=l.from&&(n=et(t?o:Ze(o),l.from),-1==e))return n;if(null!=l.to&&(r=et(t?o:Ze(o),l.to),1==e))return r}return n&&{from:n,to:r}},Lo.prototype.changed=function(){var e=this,t=this.find(-1,!0),n=this,r=this.doc.cm;t&&r&&Jr(r,(function(){var i=t.line,o=Ze(t.line),l=Nn(r,o);if(l&&(Hn(l),r.curOp.selectionChanged=r.curOp.forceUpdate=!0),r.curOp.updateMaxLine=!0,!Bt(n.doc,i)&&null!=n.height){var s=n.height;n.height=null;var a=kn(n)-s;a&&Xe(i,i.height+a)}an(r,"markerChanged",r,e)}))},Lo.prototype.attachLine=function(e){if(!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;t.maybeHiddenMarkers&&-1!=R(t.maybeHiddenMarkers,this)||(t.maybeUnhiddenMarkers||(t.maybeUnhiddenMarkers=[])).push(this)}this.lines.push(e)},Lo.prototype.detachLine=function(e){if(this.lines.splice(R(this.lines,e),1),!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;(t.maybeHiddenMarkers||(t.maybeHiddenMarkers=[])).push(this)}},xe(Lo);var Mo=function(e,t){this.markers=e,this.primary=t;for(var n=0;n<e.length;++n)e[n].parent=this};function Do(e){return e.findMarks(et(e.first,0),e.clipPos(et(e.lastLine())),(function(e){return e.parent}))}function Ao(e){for(var t=function(t){var n=e[t],r=[n.primary.doc];Wi(n.primary.doc,(function(e){return r.push(e)}));for(var i=0;i<n.markers.length;i++){var o=n.markers[i];-1==R(r,o.doc)&&(o.parent=null,n.markers.splice(i--,1))}},n=0;n<e.length;n++)t(n)}Mo.prototype.clear=function(){if(!this.explicitlyCleared){this.explicitlyCleared=!0;for(var e=0;e<this.markers.length;++e)this.markers[e].clear();an(this,"clear")}},Mo.prototype.find=function(e,t){return this.primary.find(e,t)},xe(Mo);var Fo=0,No=function(e,t,n,r,i){if(!(this instanceof No))return new No(e,t,n,r,i);null==n&&(n=0),ko.call(this,[new bo([new Gt("",null)])]),this.first=n,this.scrollTop=this.scrollLeft=0,this.cantEdit=!1,this.cleanGeneration=1,this.modeFrontier=this.highlightFrontier=n;var o=et(n,0);this.sel=Li(o),this.history=new Pi(null),this.id=++Fo,this.modeOption=t,this.lineSep=r,this.direction="rtl"==i?"rtl":"ltr",this.extend=!1,"string"==typeof e&&(e=this.splitLines(e)),Ei(this,{from:o,to:o,text:e}),Ji(this,Li(o),j)};No.prototype=Y(ko.prototype,{constructor:No,iter:function(e,t,n){n?this.iterN(e-this.first,t-e,n):this.iterN(this.first,this.first+this.size,e)},insert:function(e,t){for(var n=0,r=0;r<t.length;++r)n+=t[r].height;this.insertInner(e-this.first,t,n)},remove:function(e,t){this.removeInner(e-this.first,t)},getValue:function(e){var t=Ke(this,this.first,this.first+this.size);return!1===e?t:t.join(e||this.lineSeparator())},setValue:ni((function(e){var t=et(this.first,0),n=this.first+this.size-1;uo(this,{from:t,to:et(n,Ge(this,n).text.length),text:this.splitLines(e),origin:"setValue",full:!0},!0),this.cm&&Or(this.cm,0,0),Ji(this,Li(t),j)})),replaceRange:function(e,t,n,r){mo(this,e,t=st(this,t),n=n?st(this,n):t,r)},getRange:function(e,t,n){var r=Ve(this,st(this,e),st(this,t));return!1===n?r:r.join(n||this.lineSeparator())},getLine:function(e){var t=this.getLineHandle(e);return t&&t.text},getLineHandle:function(e){if(Qe(this,e))return Ge(this,e)},getLineNumber:function(e){return Ze(e)},getLineHandleVisualStart:function(e){return"number"==typeof e&&(e=Ge(this,e)),Ht(e)},lineCount:function(){return this.size},firstLine:function(){return this.first},lastLine:function(){return this.first+this.size-1},clipPos:function(e){return st(this,e)},getCursor:function(e){var t=this.sel.primary();return null==e||"head"==e?t.head:"anchor"==e?t.anchor:"end"==e||"to"==e||!1===e?t.to():t.from()},listSelections:function(){return this.sel.ranges},somethingSelected:function(){return this.sel.somethingSelected()},setCursor:ni((function(e,t,n){Yi(this,st(this,"number"==typeof 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i=Ve(this,n[r].from(),n[r].to());!1!==e&&(i=i.join(e||this.lineSeparator())),t[r]=i}return t},replaceSelection:function(e,t,n){for(var r=[],i=0;i<this.sel.ranges.length;i++)r[i]=e;this.replaceSelections(r,t,n||"+input")},replaceSelections:ni((function(e,t,n){for(var r=[],i=this.sel,o=0;o<i.ranges.length;o++){var l=i.ranges[o];r[o]={from:l.from(),to:l.to(),text:this.splitLines(e[o]),origin:n}}for(var s=t&&"end"!=t&&function(e,t,n){for(var r=[],i=et(e.first,0),o=i,l=0;l<t.length;l++){var s=t[l],a=Ai(s.from,i,o),u=Ai(Ti(s),i,o);if(i=s.to,o=u,"around"==n){var c=e.sel.ranges[l],h=tt(c.head,c.anchor)<0;r[l]=new Ci(h?u:a,h?a:u)}else r[l]=new Ci(a,a)}return new wi(r,e.sel.primIndex)}(this,r,t),a=r.length-1;a>=0;a--)uo(this,r[a]);s?Qi(this,s):this.cm&&Nr(this.cm)})),undo:ni((function(){ho(this,"undo")})),redo:ni((function(){ho(this,"redo")})),undoSelection:ni((function(){ho(this,"undo",!0)})),redoSelection:ni((function(){ho(this,"redo",!0)})),setExtending:function(e){this.extend=e},getExtending:function(){return this.extend},historySize:function(){for(var e=this.history,t=0,n=0,r=0;r<e.done.length;r++)e.done[r].ranges||++t;for(var i=0;i<e.undone.length;i++)e.undone[i].ranges||++n;return{undo:t,redo:n}},clearHistory:function(){var e=this;this.history=new Pi(this.history.maxGeneration),Wi(this,(function(t){return t.history=e.history}),!0)},markClean:function(){this.cleanGeneration=this.changeGeneration(!0)},changeGeneration:function(e){return e&&(this.history.lastOp=this.history.lastSelOp=this.history.lastOrigin=null),this.history.generation},isClean:function(e){return this.history.generation==(e||this.cleanGeneration)},getHistory:function(){return{done:Gi(this.history.done),undone:Gi(this.history.undone)}},setHistory:function(e){var t=this.history=new Pi(this.history.maxGeneration);t.done=Gi(e.done.slice(0),null,!0),t.undone=Gi(e.undone.slice(0),null,!0)},setGutterMarker:ni((function(e,t,n){return yo(this,e,"gutter",(function(e){var r=e.gutterMarkers||(e.gutterMarkers={});return r[t]=n,!n&&te(r)&&(e.gutterMarkers=null),!0}))})),clearGutter:ni((function(e){var t=this;this.iter((function(n){n.gutterMarkers&&n.gutterMarkers[e]&&yo(t,n,"gutter",(function(){return n.gutterMarkers[e]=null,te(n.gutterMarkers)&&(n.gutterMarkers=null),!0}))}))})),lineInfo:function(e){var t;if("number"==typeof e){if(!Qe(this,e))return null;if(t=e,!(e=Ge(this,e)))return null}else if(null==(t=Ze(e)))return null;return{line:t,handle:e,text:e.text,gutterMarkers:e.gutterMarkers,textClass:e.textClass,bgClass:e.bgClass,wrapClass:e.wrapClass,widgets:e.widgets}},addLineClass:ni((function(e,t,n){return yo(this,e,"gutter"==t?"gutter":"class",(function(e){var r="text"==t?"textClass":"background"==t?"bgClass":"gutter"==t?"gutterClass":"wrapClass";if(e[r]){if(S(n).test(e[r]))return!1;e[r]+=" "+n}else e[r]=n;return!0}))})),removeLineClass:ni((function(e,t,n){return yo(this,e,"gutter"==t?"gutter":"class",(function(e){var r="text"==t?"textClass":"background"==t?"bgClass":"gutter"==t?"gutterClass":"wrapClass",i=e[r];if(!i)return!1;if(null==n)e[r]=null;else{var o=i.match(S(n));if(!o)return!1;var l=o.index+o[0].length;e[r]=i.slice(0,o.index)+(o.index&&l!=i.length?" ":"")+i.slice(l)||null}return!0}))})),addLineWidget:ni((function(e,t,n){return function(e,t,n,r){var i=new wo(e,n,r),o=e.cm;return o&&i.noHScroll&&(o.display.alignWidgets=!0),yo(e,t,"widget",(function(t){var n=t.widgets||(t.widgets=[]);if(null==i.insertAt?n.push(i):n.splice(Math.min(n.length-1,Math.max(0,i.insertAt)),0,i),i.line=t,o&&!Bt(e,t)){var r=$t(t)<e.scrollTop;Xe(t,t.height+kn(i)),r&&Fr(o,i.height),o.curOp.forceUpdate=!0}return!0})),o&&an(o,"lineWidgetAdded",o,i,"number"==typeof t?t:Ze(t)),i}(this,e,t,n)})),removeLineWidget:function(e){e.clear()},markText:function(e,t,n){return To(this,st(this,e),st(this,t),n,n&&n.type||"range")},setBookmark:function(e,t){var n={replacedWith:t&&(null==t.nodeType?t.widget:t),insertLeft:t&&t.insertLeft,clearWhenEmpty:!1,shared:t&&t.shared,handleMouseEvents:t&&t.handleMouseEvents};return To(this,e=st(this,e),e,n,"bookmark")},findMarksAt:function(e){var t=[],n=Ge(this,(e=st(this,e)).line).markedSpans;if(n)for(var r=0;r<n.length;++r){var i=n[r];(null==i.from||i.from<=e.ch)&&(null==i.to||i.to>=e.ch)&&t.push(i.marker.parent||i.marker)}return t},findMarks:function(e,t,n){e=st(this,e),t=st(this,t);var r=[],i=e.line;return this.iter(e.line,t.line+1,(function(o){var l=o.markedSpans;if(l)for(var s=0;s<l.length;s++){var a=l[s];null!=a.to&&i==e.line&&e.ch>=a.to||null==a.from&&i!=e.line||null!=a.from&&i==t.line&&a.from>=t.ch||n&&!n(a.marker)||r.push(a.marker.parent||a.marker)}++i})),r},getAllMarks:function(){var e=[];return this.iter((function(t){var n=t.markedSpans;if(n)for(var r=0;r<n.length;++r)null!=n[r].from&&e.push(n[r].marker)})),e},posFromIndex:function(e){var t,n=this.first,r=this.lineSeparator().length;return this.iter((function(i){var o=i.text.length+r;if(o>e)return t=e,!0;e-=o,++n})),st(this,et(n,t))},indexFromPos:function(e){var t=(e=st(this,e)).ch;if(e.line<this.first||e.ch<0)return 0;var n=this.lineSeparator().length;return this.iter(this.first,e.line,(function(e){t+=e.text.length+n})),t},copy:function(e){var t=new No(Ke(this,this.first,this.first+this.size),this.modeOption,this.first,this.lineSep,this.direction);return t.scrollTop=this.scrollTop,t.scrollLeft=this.scrollLeft,t.sel=this.sel,t.extend=!1,e&&(t.history.undoDepth=this.history.undoDepth,t.setHistory(this.getHistory())),t},linkedDoc:function(e){e||(e={});var t=this.first,n=this.first+this.size;null!=e.from&&e.from>t&&(t=e.from),null!=e.to&&e.to<n&&(n=e.to);var r=new No(Ke(this,t,n),e.mode||this.modeOption,t,this.lineSep,this.direction);return e.sharedHist&&(r.history=this.history),(this.linked||(this.linked=[])).push({doc:r,sharedHist:e.sharedHist}),r.linked=[{doc:this,isParent:!0,sharedHist:e.sharedHist}],function(e,t){for(var n=0;n<t.length;n++){var r=t[n],i=r.find(),o=e.clipPos(i.from),l=e.clipPos(i.to);if(tt(o,l)){var s=To(e,o,l,r.primary,r.primary.type);r.markers.push(s),s.parent=r}}}(r,Do(this)),r},unlinkDoc:function(e){if(e instanceof Ml&&(e=e.doc),this.linked)for(var t=0;t<this.linked.length;++t)if(this.linked[t].doc==e){this.linked.splice(t,1),e.unlinkDoc(this),Ao(Do(this));break}if(e.history==this.history){var n=[e.id];Wi(e,(function(e){return n.push(e.id)}),!0),e.history=new Pi(null),e.history.done=Gi(this.history.done,n),e.history.undone=Gi(this.history.undone,n)}},iterLinkedDocs:function(e){Wi(this,e)},getMode:function(){return this.mode},getEditor:function(){return this.cm},splitLines:function(e){return this.lineSep?e.split(this.lineSep):Ne(e)},lineSeparator:function(){return this.lineSep||"\n"},setDirection:ni((function(e){var t;"rtl"!=e&&(e="ltr"),e!=this.direction&&(this.direction=e,this.iter((function(e){return e.order=null})),this.cm&&Jr(t=this.cm,(function(){_i(t),hr(t)})))}))}),No.prototype.eachLine=No.prototype.iter;var Oo=0;function Eo(e){var t=this;if(Wo(t),!me(t,e)&&!wn(t.display,e)){ye(e),l&&(Oo=+new Date);var n=ur(t,e,!0),r=e.dataTransfer.files;if(n&&!t.isReadOnly())if(r&&r.length&&window.FileReader&&window.File)for(var i=r.length,o=Array(i),s=0,a=function(){++s==i&&ei(t,(function(){var e={from:n=st(t.doc,n),to:n,text:t.doc.splitLines(o.filter((function(e){return null!=e})).join(t.doc.lineSeparator())),origin:"paste"};uo(t.doc,e),Qi(t.doc,Li(st(t.doc,n),st(t.doc,Ti(e))))}))()},u=function(e,n){if(t.options.allowDropFileTypes&&-1==R(t.options.allowDropFileTypes,e.type))a();else{var r=new FileReader;r.onerror=function(){return a()},r.onload=function(){var e=r.result;/[\x00-\x08\x0e-\x1f]{2}/.test(e)||(o[n]=e),a()},r.readAsText(e)}},c=0;c<r.length;c++)u(r[c],c);else{if(t.state.draggingText&&t.doc.sel.contains(n)>-1)return t.state.draggingText(e),void setTimeout((function(){return t.display.input.focus()}),20);try{var h=e.dataTransfer.getData("Text");if(h){var d;if(t.state.draggingText&&!t.state.draggingText.copy&&(d=t.listSelections()),eo(t.doc,Li(n,n)),d)for(var 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new Error("Unrecognized modifier name: "+s);r=!0}}return t&&(e="Alt-"+e),n&&(e="Ctrl-"+e),i&&(e="Cmd-"+e),r&&(e="Shift-"+e),e}function Uo(e){var t={};for(var n in e)if(e.hasOwnProperty(n)){var r=e[n];if(/^(name|fallthrough|(de|at)tach)$/.test(n))continue;if("..."==r){delete e[n];continue}for(var i=X(n.split(" "),qo),o=0;o<i.length;o++){var l=void 0,s=void 0;o==i.length-1?(s=i.join(" "),l=r):(s=i.slice(0,o+1).join(" "),l="...");var a=t[s];if(a){if(a!=l)throw new Error("Inconsistent bindings for "+s)}else t[s]=l}delete e[n]}for(var u in t)e[u]=t[u];return e}function Go(e,t,n,r){var i=(t=Zo(t)).call?t.call(e,r):t[e];if(!1===i)return"nothing";if("..."===i)return"multi";if(null!=i&&n(i))return"handled";if(t.fallthrough){if("[object Array]"!=Object.prototype.toString.call(t.fallthrough))return Go(e,t.fallthrough,n,r);for(var o=0;o<t.fallthrough.length;o++){var l=Go(e,t.fallthrough[o],n,r);if(l)return l}}}function Vo(e){var t="string"==typeof 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n=e.cursorCoords(t.head,"div").top+5;return e.coordsChar({left:0,top:n},"div")}),q)},goLineLeftSmart:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5,r=e.coordsChar({left:0,top:n},"div");return r.ch<e.getLine(r.line).search(/\S/)?rl(e,t.head):r}),q)},goLineUp:function(e){return e.moveV(-1,"line")},goLineDown:function(e){return e.moveV(1,"line")},goPageUp:function(e){return e.moveV(-1,"page")},goPageDown:function(e){return e.moveV(1,"page")},goCharLeft:function(e){return e.moveH(-1,"char")},goCharRight:function(e){return e.moveH(1,"char")},goColumnLeft:function(e){return e.moveH(-1,"column")},goColumnRight:function(e){return e.moveH(1,"column")},goWordLeft:function(e){return e.moveH(-1,"word")},goGroupRight:function(e){return e.moveH(1,"group")},goGroupLeft:function(e){return e.moveH(-1,"group")},goWordRight:function(e){return e.moveH(1,"word")},delCharBefore:function(e){return e.deleteH(-1,"char")},delCharAfter:function(e){return e.deleteH(1,"char")},delWordBefore:function(e){return e.deleteH(-1,"word")},delWordAfter:function(e){return e.deleteH(1,"word")},delGroupBefore:function(e){return e.deleteH(-1,"group")},delGroupAfter:function(e){return e.deleteH(1,"group")},indentAuto:function(e){return e.indentSelection("smart")},indentMore:function(e){return e.indentSelection("add")},indentLess:function(e){return e.indentSelection("subtract")},insertTab:function(e){return e.replaceSelection("\t")},insertSoftTab:function(e){for(var t=[],n=e.listSelections(),r=e.options.tabSize,i=0;i<n.length;i++){var o=n[i].from(),l=H(e.getLine(o.line),o.ch,r);t.push(V(r-l%r))}e.replaceSelections(t)},defaultTab:function(e){e.somethingSelected()?e.indentSelection("add"):e.execCommand("insertTab")},transposeChars:function(e){return Jr(e,(function(){for(var t=e.listSelections(),n=[],r=0;r<t.length;r++)if(t[r].empty()){var i=t[r].head,o=Ge(e.doc,i.line).text;if(o)if(i.ch==o.length&&(i=new et(i.line,i.ch-1)),i.ch>0)i=new 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n=Xo(t,!0);return!!n&&(t.shiftKey&&!e.state.keySeq?ll(e,"Shift-"+n,t,(function(t){return il(e,t,!0)}))||ll(e,n,t,(function(t){if("string"==typeof t?/^go[A-Z]/.test(t):t.motion)return il(e,t)})):ll(e,n,t,(function(t){return il(e,t)})))}var ul=null;function cl(e){var t=this;if(t.curOp.focus=O(),!me(t,e)){l&&s<11&&27==e.keyCode&&(e.returnValue=!1);var r=e.keyCode;t.display.shift=16==r||e.shiftKey;var i=al(t,e);h&&(ul=i?r:null,!i&&88==r&&!Ee&&(x?e.metaKey:e.ctrlKey)&&t.replaceSelection("",null,"cut")),n&&!x&&!i&&46==r&&e.shiftKey&&!e.ctrlKey&&document.execCommand&&document.execCommand("cut"),18!=r||/\bCodeMirror-crosshair\b/.test(t.display.lineDiv.className)||function(e){var t=e.display.lineDiv;function n(e){18!=e.keyCode&&e.altKey||(T(t,"CodeMirror-crosshair"),fe(document,"keyup",n),fe(document,"mouseover",n))}E(t,"CodeMirror-crosshair"),he(document,"keyup",n),he(document,"mouseover",n)}(t)}}function hl(e){16==e.keyCode&&(this.doc.sel.shift=!1),me(this,e)}function dl(e){var t=this;if(!(wn(t.display,e)||me(t,e)||e.ctrlKey&&!e.altKey||x&&e.metaKey)){var n=e.keyCode,r=e.charCode;if(h&&n==ul)return ul=null,void ye(e);if(!h||e.which&&!(e.which<10)||!al(t,e)){var i=String.fromCharCode(null==r?n:r);"\b"!=i&&(function(e,t,n){return ll(e,"'"+n+"'",t,(function(t){return il(e,t,!0)}))}(t,e,i)||t.display.input.onKeyPress(e))}}}var fl,pl,ml=function(e,t,n){this.time=e,this.pos=t,this.button=n};function gl(e){var t=this,n=t.display;if(!(me(t,e)||n.activeTouch&&n.input.supportsTouch()))if(n.input.ensurePolled(),n.shift=e.shiftKey,wn(n,e))a||(n.scroller.draggable=!1,setTimeout((function(){return n.scroller.draggable=!0}),100));else if(!yl(t,e)){var r=ur(t,e),i=Se(e),o=r?function(e,t){var n=+new Date;return pl&&pl.compare(n,e,t)?(fl=pl=null,"triple"):fl&&fl.compare(n,e,t)?(pl=new ml(n,e,t),fl=null,"double"):(fl=new ml(n,e,t),pl=null,"single")}(r,i):"single";window.focus(),1==i&&t.state.selectingText&&t.state.selectingText(e),r&&function(e,t,n,r,i){var o="Click";return"double"==r?o="Double"+o:"triple"==r&&(o="Triple"+o),ll(e,Ko(o=(1==t?"Left":2==t?"Middle":"Right")+o,i),i,(function(t){if("string"==typeof t&&(t=tl[t]),!t)return!1;var r=!1;try{e.isReadOnly()&&(e.state.suppressEdits=!0),r=t(e,n)!=B}finally{e.state.suppressEdits=!1}return r}))}(t,i,r,o,e)||(1==i?r?function(e,t,n,r){l?setTimeout(_(wr,e),0):e.curOp.focus=O();var i,o=function(e,t,n){var r=e.getOption("configureMouse"),i=r?r(e,t,n):{};if(null==i.unit){var o=y?n.shiftKey&&n.metaKey:n.altKey;i.unit=o?"rectangle":"single"==t?"char":"double"==t?"word":"line"}return(null==i.extend||e.doc.extend)&&(i.extend=e.doc.extend||n.shiftKey),null==i.addNew&&(i.addNew=x?n.metaKey:n.ctrlKey),null==i.moveOnDrag&&(i.moveOnDrag=!(x?n.altKey:n.ctrlKey)),i}(e,n,r),u=e.doc.sel;e.options.dragDrop&&Me&&!e.isReadOnly()&&"single"==n&&(i=u.contains(t))>-1&&(tt((i=u.ranges[i]).from(),t)<0||t.xRel>0)&&(tt(i.to(),t)>0||t.xRel<0)?function(e,t,n,r){var i=e.display,o=!1,u=ei(e,(function(t){a&&(i.scroller.draggable=!1),e.state.draggingText=!1,fe(i.wrapper.ownerDocument,"mouseup",u),fe(i.wrapper.ownerDocument,"mousemove",c),fe(i.scroller,"dragstart",h),fe(i.scroller,"drop",u),o||(ye(t),r.addNew||Ki(e.doc,n,null,null,r.extend),a||l&&9==s?setTimeout((function(){i.wrapper.ownerDocument.body.focus(),i.input.focus()}),20):i.input.focus())})),c=function(e){o=o||Math.abs(t.clientX-e.clientX)+Math.abs(t.clientY-e.clientY)>=10},h=function(){return o=!0};a&&(i.scroller.draggable=!0),e.state.draggingText=u,u.copy=!r.moveOnDrag,i.scroller.dragDrop&&i.scroller.dragDrop(),he(i.wrapper.ownerDocument,"mouseup",u),he(i.wrapper.ownerDocument,"mousemove",c),he(i.scroller,"dragstart",h),he(i.scroller,"drop",u),Cr(e),setTimeout((function(){return i.input.focus()}),20)}(e,r,t,o):function(e,t,n,r){var i=e.display,o=e.doc;ye(t);var l,s,a=o.sel,u=a.ranges;if(r.addNew&&!r.extend?(s=o.sel.contains(n),l=s>-1?u[s]:new Ci(n,n)):(l=o.sel.primary(),s=o.sel.primIndex),"rectangle"==r.unit)r.addNew||(l=new Ci(n,n)),n=ur(e,t,!0,!0),s=-1;else{var c=vl(e,n,r.unit);l=r.extend?Vi(l,c.anchor,c.head,r.extend):c}r.addNew?-1==s?(s=u.length,Ji(o,Si(e,u.concat([l]),s),{scroll:!1,origin:"*mouse"})):u.length>1&&u[s].empty()&&"char"==r.unit&&!r.extend?(Ji(o,Si(e,u.slice(0,s).concat(u.slice(s+1)),0),{scroll:!1,origin:"*mouse"}),a=o.sel):Zi(o,s,l,$):(s=0,Ji(o,new wi([l],0),$),a=o.sel);var h=n;function d(t){if(0!=tt(h,t))if(h=t,"rectangle"==r.unit){for(var i=[],u=e.options.tabSize,c=H(Ge(o,n.line).text,n.ch,u),d=H(Ge(o,t.line).text,t.ch,u),f=Math.min(c,d),p=Math.max(c,d),m=Math.min(n.line,t.line),g=Math.min(e.lastLine(),Math.max(n.line,t.line));m<=g;m++){var v=Ge(o,m).text,x=U(v,f,u);f==p?i.push(new Ci(et(m,x),et(m,x))):v.length>x&&i.push(new Ci(et(m,x),et(m,U(v,p,u))))}i.length||i.push(new Ci(n,n)),Ji(o,Si(e,a.ranges.slice(0,s).concat(i),s),{origin:"*mouse",scroll:!1}),e.scrollIntoView(t)}else{var y,b=l,k=vl(e,t,r.unit),w=b.anchor;tt(k.anchor,w)>0?(y=k.head,w=ot(b.from(),k.anchor)):(y=k.anchor,w=it(b.to(),k.head));var C=a.ranges.slice(0);C[s]=function(e,t){var n=t.anchor,r=t.head,i=Ge(e.doc,n.line);if(0==tt(n,r)&&n.sticky==r.sticky)return t;var o=ue(i);if(!o)return t;var l=se(o,n.ch,n.sticky),s=o[l];if(s.from!=n.ch&&s.to!=n.ch)return t;var a,u=l+(s.from==n.ch==(1!=s.level)?0:1);if(0==u||u==o.length)return t;if(r.line!=n.line)a=(r.line-n.line)*("ltr"==e.doc.direction?1:-1)>0;else{var c=se(o,r.ch,r.sticky),h=c-l||(r.ch-n.ch)*(1==s.level?-1:1);a=c==u-1||c==u?h<0:h>0}var d=o[u+(a?-1:0)],f=a==(1==d.level),p=f?d.from:d.to,m=f?"after":"before";return n.ch==p&&n.sticky==m?t:new Ci(new et(n.line,p,m),r)}(e,new Ci(st(o,w),y)),Ji(o,Si(e,C,s),$)}}var f=i.wrapper.getBoundingClientRect(),p=0;function m(t){e.state.selectingText=!1,p=1/0,t&&(ye(t),i.input.focus()),fe(i.wrapper.ownerDocument,"mousemove",g),fe(i.wrapper.ownerDocument,"mouseup",v),o.history.lastSelOrigin=null}var 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n*n+r*r>400}he(t.scroller,"touchstart",(function(i){if(!me(e,i)&&!function(e){if(1!=e.touches.length)return!1;var t=e.touches[0];return t.radiusX<=1&&t.radiusY<=1}(i)&&!yl(e,i)){t.input.ensurePolled(),clearTimeout(n);var o=+new Date;t.activeTouch={start:o,moved:!1,prev:o-r.end<=300?r:null},1==i.touches.length&&(t.activeTouch.left=i.touches[0].pageX,t.activeTouch.top=i.touches[0].pageY)}})),he(t.scroller,"touchmove",(function(){t.activeTouch&&(t.activeTouch.moved=!0)})),he(t.scroller,"touchend",(function(n){var r=t.activeTouch;if(r&&!wn(t,n)&&null!=r.left&&!r.moved&&new Date-r.start<300){var l,s=e.coordsChar(t.activeTouch,"page");l=!r.prev||o(r,r.prev)?new Ci(s,s):!r.prev.prev||o(r,r.prev.prev)?e.findWordAt(s):new 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l=3==t.nodeType?t:null,s=t;for(l||1!=t.childNodes.length||3!=t.firstChild.nodeType||(l=t.firstChild,n&&(n=l.nodeValue.length));s.parentNode!=r;)s=s.parentNode;var a=e.measure,u=a.maps;function c(t,n,r){for(var i=-1;i<(u?u.length:0);i++)for(var o=i<0?a.map:u[i],l=0;l<o.length;l+=3){var s=o[l+2];if(s==t||s==n){var c=Ze(i<0?e.line:e.rest[i]),h=o[l]+r;return(r<0||s!=t)&&(h=o[l+(r?1:0)]),et(c,h)}}}var h=c(l,s,n);if(h)return jl(h,i);for(var d=s.nextSibling,f=l?l.nodeValue.length-n:0;d;d=d.nextSibling){if(h=c(d,d.firstChild,0))return jl(et(h.line,h.ch-f),i);f+=d.textContent.length}for(var p=s.previousSibling,m=n;p;p=p.previousSibling){if(h=c(p,p.firstChild,-1))return jl(et(h.line,h.ch+m),i);m+=p.textContent.length}}Rl.prototype.init=function(e){var t=this,n=this,r=n.cm,i=n.div=e.lineDiv;function o(e){if(!me(r,e)){if(r.somethingSelected())Nl({lineWise:!1,text:r.getSelections()}),"cut"==e.type&&r.replaceSelection("",null,"cut");else{if(!r.options.lineWiseCopyCut)return;var t=zl(r);Nl({lineWise:!0,text:t.text}),"cut"==e.type&&r.operation((function(){r.setSelections(t.ranges,0,j),r.replaceSelection("",null,"cut")}))}if(e.clipboardData){e.clipboardData.clearData();var o=Fl.text.join("\n");if(e.clipboardData.setData("Text",o),e.clipboardData.getData("Text")==o)return void e.preventDefault()}var l=Pl(),s=l.firstChild;r.display.lineSpace.insertBefore(l,r.display.lineSpace.firstChild),s.value=Fl.text.join("\n");var a=document.activeElement;z(s),setTimeout((function(){r.display.lineSpace.removeChild(l),a.focus(),a==i&&n.showPrimarySelection()}),50)}}_l(i,r.options.spellcheck,r.options.autocorrect,r.options.autocapitalize),he(i,"paste",(function(e){me(r,e)||El(e,r)||s<=11&&setTimeout(ei(r,(function(){return 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e=this.getSelection(),t=this.cm,r=t.doc.sel.primary(),i=r.from(),o=r.to();if(t.display.viewTo==t.display.viewFrom||i.line>=t.display.viewTo||o.line<t.display.viewFrom)e.removeAllRanges();else{var l=$l(t,e.anchorNode,e.anchorOffset),s=$l(t,e.focusNode,e.focusOffset);if(!l||l.bad||!s||s.bad||0!=tt(ot(l,s),i)||0!=tt(it(l,s),o)){var a=t.display.view,u=i.line>=t.display.viewFrom&&Bl(t,i)||{node:a[0].measure.map[2],offset:0},c=o.line<t.display.viewTo&&Bl(t,o);if(!c){var h=a[a.length-1].measure,d=h.maps?h.maps[h.maps.length-1]:h.map;c={node:d[d.length-1],offset:d[d.length-2]-d[d.length-3]}}if(u&&c){var f,p=e.rangeCount&&e.getRangeAt(0);try{f=L(u.node,u.offset,c.offset,c.node)}catch(e){}f&&(!n&&t.state.focused?(e.collapse(u.node,u.offset),f.collapsed||(e.removeAllRanges(),e.addRange(f))):(e.removeAllRanges(),e.addRange(f)),p&&null==e.anchorNode?e.addRange(p):n&&this.startGracePeriod()),this.rememberSelection()}else e.removeAllRanges()}}},Rl.prototype.startGracePeriod=function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout((function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation((function(){return e.cm.curOp.selectionChanged=!0}))}),20)},Rl.prototype.showMultipleSelections=function(e){D(this.cm.display.cursorDiv,e.cursors),D(this.cm.display.selectionDiv,e.selection)},Rl.prototype.rememberSelection=function(){var e=this.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},Rl.prototype.selectionInEditor=function(){var e=this.getSelection();if(!e.rangeCount)return!1;var t=e.getRangeAt(0).commonAncestorContainer;return N(this.div,t)},Rl.prototype.focus=function(){"nocursor"!=this.cm.options.readOnly&&(this.selectionInEditor()||this.showSelection(this.prepareSelection(),!0),this.div.focus())},Rl.prototype.blur=function(){this.div.blur()},Rl.prototype.getField=function(){return this.div},Rl.prototype.supportsTouch=function(){return!0},Rl.prototype.receivedFocus=function(){var e=this;this.selectionInEditor()?this.pollSelection():Jr(this.cm,(function(){return e.cm.curOp.selectionChanged=!0})),this.polling.set(this.cm.options.pollInterval,(function t(){e.cm.state.focused&&(e.pollSelection(),e.polling.set(e.cm.options.pollInterval,t))}))},Rl.prototype.selectionChanged=function(){var e=this.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},Rl.prototype.pollSelection=function(){if(null==this.readDOMTimeout&&!this.gracePeriod&&this.selectionChanged()){var e=this.getSelection(),t=this.cm;if(g&&c&&this.cm.display.gutterSpecs.length&&function(e){for(var t=e;t;t=t.parentNode)if(/CodeMirror-gutter-wrapper/.test(t.className))return!0;return!1}(e.anchorNode))return this.cm.triggerOnKeyDown({type:"keydown",keyCode:8,preventDefault:Math.abs}),this.blur(),void this.focus();if(!this.composing){this.rememberSelection();var n=$l(t,e.anchorNode,e.anchorOffset),r=$l(t,e.focusNode,e.focusOffset);n&&r&&Jr(t,(function(){Ji(t.doc,Li(n,r),j),(n.bad||r.bad)&&(t.curOp.selectionChanged=!0)}))}}},Rl.prototype.pollContent=function(){null!=this.readDOMTimeout&&(clearTimeout(this.readDOMTimeout),this.readDOMTimeout=null);var e,t,n,r=this.cm,i=r.display,o=r.doc.sel.primary(),l=o.from(),s=o.to();if(0==l.ch&&l.line>r.firstLine()&&(l=et(l.line-1,Ge(r.doc,l.line-1).length)),s.ch==Ge(r.doc,s.line).text.length&&s.line<r.lastLine()&&(s=et(s.line+1,0)),l.line<i.viewFrom||s.line>i.viewTo-1)return!1;l.line==i.viewFrom||0==(e=cr(r,l.line))?(t=Ze(i.view[0].line),n=i.view[0].node):(t=Ze(i.view[e].line),n=i.view[e-1].node.nextSibling);var a,u,c=cr(r,s.line);if(c==i.view.length-1?(a=i.viewTo-1,u=i.lineDiv.lastChild):(a=Ze(i.view[c+1].line)-1,u=i.view[c+1].node.previousSibling),!n)return!1;for(var h=r.doc.splitLines(function(e,t,n,r,i){var o="",l=!1,s=e.doc.lineSeparator(),a=!1;function u(){l&&(o+=s,a&&(o+=s),l=a=!1)}function c(e){e&&(u(),o+=e)}function h(t){if(1==t.nodeType){var n=t.getAttribute("cm-text");if(n)return void c(n);var o,d=t.getAttribute("cm-marker");if(d){var f=e.findMarks(et(r,0),et(i+1,0),(g=+d,function(e){return e.id==g}));return void(f.length&&(o=f[0].find(0))&&c(Ve(e.doc,o.from,o.to).join(s)))}if("false"==t.getAttribute("contenteditable"))return;var p=/^(pre|div|p|li|table|br)$/i.test(t.nodeName);if(!/^br$/i.test(t.nodeName)&&0==t.textContent.length)return;p&&u();for(var m=0;m<t.childNodes.length;m++)h(t.childNodes[m]);/^(pre|p)$/i.test(t.nodeName)&&(a=!0),p&&(l=!0)}else 3==t.nodeType&&c(t.nodeValue.replace(/\u200b/g,"").replace(/\u00a0/g," "));var g}for(;h(t),t!=n;)t=t.nextSibling,a=!1;return o}(r,n,u,t,a)),d=Ve(r.doc,et(t,0),et(a,Ge(r.doc,a).text.length));h.length>1&&d.length>1;)if(K(h)==K(d))h.pop(),d.pop(),a--;else{if(h[0]!=d[0])break;h.shift(),d.shift(),t++}for(var f=0,p=0,m=h[0],g=d[0],v=Math.min(m.length,g.length);f<v&&m.charCodeAt(f)==g.charCodeAt(f);)++f;for(var x=K(h),y=K(d),b=Math.min(x.length-(1==h.length?f:0),y.length-(1==d.length?f:0));p<b&&x.charCodeAt(x.length-p-1)==y.charCodeAt(y.length-p-1);)++p;if(1==h.length&&1==d.length&&t==l.line)for(;f&&f>l.ch&&x.charCodeAt(x.length-p-1)==y.charCodeAt(y.length-p-1);)f--,p++;h[h.length-1]=x.slice(0,x.length-p).replace(/^\u200b+/,""),h[0]=h[0].slice(f).replace(/\u200b+$/,"");var k=et(t,f),w=et(a,d.length?K(d).length-p:0);return h.length>1||h[0]||tt(k,w)?(mo(r.doc,h,k,w,"+input"),!0):void 0},Rl.prototype.ensurePolled=function(){this.forceCompositionEnd()},Rl.prototype.reset=function(){this.forceCompositionEnd()},Rl.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},Rl.prototype.readFromDOMSoon=function(){var e=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout((function(){if(e.readDOMTimeout=null,e.composing){if(!e.composing.done)return;e.composing=null}e.updateFromDOM()}),80))},Rl.prototype.updateFromDOM=function(){var e=this;!this.cm.isReadOnly()&&this.pollContent()||Jr(this.cm,(function(){return hr(e.cm)}))},Rl.prototype.setUneditable=function(e){e.contentEditable="false"},Rl.prototype.onKeyPress=function(e){0==e.charCode||this.composing||(e.preventDefault(),this.cm.isReadOnly()||ei(this.cm,Ol)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0))},Rl.prototype.readOnlyChanged=function(e){this.div.contentEditable=String("nocursor"!=e)},Rl.prototype.onContextMenu=function(){},Rl.prototype.resetPosition=function(){},Rl.prototype.needsContentAttribute=!0;var Ul=function(e){this.cm=e,this.prevInput="",this.pollingFast=!1,this.polling=new I,this.hasSelection=!1,this.composing=null};Ul.prototype.init=function(e){var t=this,n=this,r=this.cm;this.createField(e);var i=this.textarea;function o(e){if(!me(r,e)){if(r.somethingSelected())Nl({lineWise:!1,text:r.getSelections()});else{if(!r.options.lineWiseCopyCut)return;var t=zl(r);Nl({lineWise:!0,text:t.text}),"cut"==e.type?r.setSelections(t.ranges,null,j):(n.prevInput="",i.value=t.text.join("\n"),z(i))}"cut"==e.type&&(r.state.cutIncoming=+new Date)}}e.wrapper.insertBefore(this.wrapper,e.wrapper.firstChild),m&&(i.style.width="0px"),he(i,"input",(function(){l&&s>=9&&t.hasSelection&&(t.hasSelection=null),n.poll()})),he(i,"paste",(function(e){me(r,e)||El(e,r)||(r.state.pasteIncoming=+new Date,n.fastPoll())})),he(i,"cut",o),he(i,"copy",o),he(e.scroller,"paste",(function(t){if(!wn(e,t)&&!me(r,t)){if(!i.dispatchEvent)return r.state.pasteIncoming=+new Date,void n.focus();var o=new Event("paste");o.clipboardData=t.clipboardData,i.dispatchEvent(o)}})),he(e.lineSpace,"selectstart",(function(t){wn(e,t)||ye(t)})),he(i,"compositionstart",(function(){var e=r.getCursor("from");n.composing&&n.composing.range.clear(),n.composing={start:e,range:r.markText(e,r.getCursor("to"),{className:"CodeMirror-composing"})}})),he(i,"compositionend",(function(){n.composing&&(n.poll(),n.composing.range.clear(),n.composing=null)}))},Ul.prototype.createField=function(e){this.wrapper=Pl(),this.textarea=this.wrapper.firstChild},Ul.prototype.prepareSelection=function(){var e=this.cm,t=e.display,n=e.doc,r=vr(e);if(e.options.moveInputWithCursor){var i=Vn(e,n.sel.primary().head,"div"),o=t.wrapper.getBoundingClientRect(),l=t.lineDiv.getBoundingClientRect();r.teTop=Math.max(0,Math.min(t.wrapper.clientHeight-10,i.top+l.top-o.top)),r.teLeft=Math.max(0,Math.min(t.wrapper.clientWidth-10,i.left+l.left-o.left))}return r},Ul.prototype.showSelection=function(e){var t=this.cm.display;D(t.cursorDiv,e.cursors),D(t.selectionDiv,e.selection),null!=e.teTop&&(this.wrapper.style.top=e.teTop+"px",this.wrapper.style.left=e.teLeft+"px")},Ul.prototype.reset=function(e){if(!this.contextMenuPending&&!this.composing){var t=this.cm;if(t.somethingSelected()){this.prevInput="";var n=t.getSelection();this.textarea.value=n,t.state.focused&&z(this.textarea),l&&s>=9&&(this.hasSelection=n)}else e||(this.prevInput=this.textarea.value="",l&&s>=9&&(this.hasSelection=null))}},Ul.prototype.getField=function(){return this.textarea},Ul.prototype.supportsTouch=function(){return!1},Ul.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!v||O()!=this.textarea))try{this.textarea.focus()}catch(e){}},Ul.prototype.blur=function(){this.textarea.blur()},Ul.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},Ul.prototype.receivedFocus=function(){this.slowPoll()},Ul.prototype.slowPoll=function(){var e=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,(function(){e.poll(),e.cm.state.focused&&e.slowPoll()}))},Ul.prototype.fastPoll=function(){var e=!1,t=this;t.pollingFast=!0,t.polling.set(20,(function n(){t.poll()||e?(t.pollingFast=!1,t.slowPoll()):(e=!0,t.polling.set(60,n))}))},Ul.prototype.poll=function(){var e=this,t=this.cm,n=this.textarea,r=this.prevInput;if(this.contextMenuPending||!t.state.focused||Oe(n)&&!r&&!this.composing||t.isReadOnly()||t.options.disableInput||t.state.keySeq)return!1;var i=n.value;if(i==r&&!t.somethingSelected())return!1;if(l&&s>=9&&this.hasSelection===i||x&&/[\uf700-\uf7ff]/.test(i))return t.display.input.reset(),!1;if(t.doc.sel==t.display.selForContextMenu){var o=i.charCodeAt(0);if(8203!=o||r||(r="​"),8666==o)return this.reset(),this.cm.execCommand("undo")}for(var a=0,u=Math.min(r.length,i.length);a<u&&r.charCodeAt(a)==i.charCodeAt(a);)++a;return Jr(t,(function(){Ol(t,i.slice(a),r.length-a,null,e.composing?"*compose":null),i.length>1e3||i.indexOf("\n")>-1?n.value=e.prevInput="":e.prevInput=i,e.composing&&(e.composing.range.clear(),e.composing.range=t.markText(e.composing.start,t.getCursor("to"),{className:"CodeMirror-composing"}))})),!0},Ul.prototype.ensurePolled=function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},Ul.prototype.onKeyPress=function(){l&&s>=9&&(this.hasSelection=null),this.fastPoll()},Ul.prototype.onContextMenu=function(e){var t=this,n=t.cm,r=n.display,i=t.textarea;t.contextMenuPending&&t.contextMenuPending();var o=ur(n,e),u=r.scroller.scrollTop;if(o&&!h){n.options.resetSelectionOnContextMenu&&-1==n.doc.sel.contains(o)&&ei(n,Ji)(n.doc,Li(o),j);var c,d=i.style.cssText,f=t.wrapper.style.cssText,p=t.wrapper.offsetParent.getBoundingClientRect();if(t.wrapper.style.cssText="position: static",i.style.cssText="position: absolute; width: 30px; height: 30px;\n      top: "+(e.clientY-p.top-5)+"px; left: "+(e.clientX-p.left-5)+"px;\n      z-index: 1000; background: "+(l?"rgba(255, 255, 255, .05)":"transparent")+";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",a&&(c=window.scrollY),r.input.focus(),a&&window.scrollTo(null,c),r.input.reset(),n.somethingSelected()||(i.value=t.prevInput=" "),t.contextMenuPending=v,r.selForContextMenu=n.doc.sel,clearTimeout(r.detectingSelectAll),l&&s>=9&&g(),C){we(e);var m=function(){fe(window,"mouseup",m),setTimeout(v,20)};he(window,"mouseup",m)}else setTimeout(v,50)}function g(){if(null!=i.selectionStart){var e=n.somethingSelected(),o="​"+(e?i.value:"");i.value="⇚",i.value=o,t.prevInput=e?"":"​",i.selectionStart=1,i.selectionEnd=o.length,r.selForContextMenu=n.doc.sel}}function v(){if(t.contextMenuPending==v&&(t.contextMenuPending=!1,t.wrapper.style.cssText=f,i.style.cssText=d,l&&s<9&&r.scrollbars.setScrollTop(r.scroller.scrollTop=u),null!=i.selectionStart)){(!l||l&&s<9)&&g();var e=0,o=function(){r.selForContextMenu==n.doc.sel&&0==i.selectionStart&&i.selectionEnd>0&&"​"==t.prevInput?ei(n,so)(n):e++<10?r.detectingSelectAll=setTimeout(o,500):(r.selForContextMenu=null,r.input.reset())};r.detectingSelectAll=setTimeout(o,200)}}},Ul.prototype.readOnlyChanged=function(e){e||this.reset(),this.textarea.disabled="nocursor"==e},Ul.prototype.setUneditable=function(){},Ul.prototype.needsContentAttribute=!1,function(e){var t=e.optionHandlers;function n(n,r,i,o){e.defaults[n]=r,i&&(t[n]=o?function(e,t,n){n!=wl&&i(e,t,n)}:i)}e.defineOption=n,e.Init=wl,n("value","",(function(e,t){return e.setValue(t)}),!0),n("mode",null,(function(e,t){e.doc.modeOption=t,Fi(e)}),!0),n("indentUnit",2,Fi,!0),n("indentWithTabs",!1),n("smartIndent",!0),n("tabSize",4,(function(e){Ni(e),Rn(e),hr(e)}),!0),n("lineSeparator",null,(function(e,t){if(e.doc.lineSep=t,t){var n=[],r=e.doc.first;e.doc.iter((function(e){for(var i=0;;){var o=e.text.indexOf(t,i);if(-1==o)break;i=o+t.length,n.push(et(r,o))}r++}));for(var i=n.length-1;i>=0;i--)mo(e.doc,t,n[i],et(n[i].line,n[i].ch+t.length))}})),n("specialChars",/[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g,(function(e,t,n){e.state.specialChars=new RegExp(t.source+(t.test("\t")?"":"|\t"),"g"),n!=wl&&e.refresh()})),n("specialCharPlaceholder",Qt,(function(e){return e.refresh()}),!0),n("electricChars",!0),n("inputStyle",v?"contenteditable":"textarea",(function(){throw new Error("inputStyle can not (yet) be changed in a running editor")}),!0),n("spellcheck",!1,(function(e,t){return e.getInputField().spellcheck=t}),!0),n("autocorrect",!1,(function(e,t){return e.getInputField().autocorrect=t}),!0),n("autocapitalize",!1,(function(e,t){return e.getInputField().autocapitalize=t}),!0),n("rtlMoveVisually",!b),n("wholeLineUpdateBefore",!0),n("theme","default",(function(e){kl(e),mi(e)}),!0),n("keyMap","default",(function(e,t,n){var r=Zo(t),i=n!=wl&&Zo(n);i&&i.detach&&i.detach(e,r),r.attach&&r.attach(e,i||null)})),n("extraKeys",null),n("configureMouse",null),n("lineWrapping",!1,Tl,!0),n("gutters",[],(function(e,t){e.display.gutterSpecs=fi(t,e.options.lineNumbers),mi(e)}),!0),n("fixedGutter",!0,(function(e,t){e.display.gutters.style.left=t?lr(e.display)+"px":"0",e.refresh()}),!0),n("coverGutterNextToScrollbar",!1,(function(e){return Br(e)}),!0),n("scrollbarStyle","native",(function(e){qr(e),Br(e),e.display.scrollbars.setScrollTop(e.doc.scrollTop),e.display.scrollbars.setScrollLeft(e.doc.scrollLeft)}),!0),n("lineNumbers",!1,(function(e,t){e.display.gutterSpecs=fi(e.options.gutters,t),mi(e)}),!0),n("firstLineNumber",1,mi,!0),n("lineNumberFormatter",(function(e){return e}),mi,!0),n("showCursorWhenSelecting",!1,gr,!0),n("resetSelectionOnContextMenu",!0),n("lineWiseCopyCut",!0),n("pasteLinesPerSelection",!0),n("selectionsMayTouch",!1),n("readOnly",!1,(function(e,t){"nocursor"==t&&(Lr(e),e.display.input.blur()),e.display.input.readOnlyChanged(t)})),n("disableInput",!1,(function(e,t){t||e.display.input.reset()}),!0),n("dragDrop",!0,Ll),n("allowDropFileTypes",null),n("cursorBlinkRate",530),n("cursorScrollMargin",0),n("cursorHeight",1,gr,!0),n("singleCursorHeightPerLine",!0,gr,!0),n("workTime",100),n("workDelay",100),n("flattenSpans",!0,Ni,!0),n("addModeClass",!1,Ni,!0),n("pollInterval",100),n("undoDepth",200,(function(e,t){return e.doc.history.undoDepth=t})),n("historyEventDelay",1250),n("viewportMargin",10,(function(e){return e.refresh()}),!0),n("maxHighlightLength",1e4,Ni,!0),n("moveInputWithCursor",!0,(function(e,t){t||e.display.input.resetPosition()})),n("tabindex",null,(function(e,t){return e.display.input.getField().tabIndex=t||""})),n("autofocus",null),n("direction","ltr",(function(e,t){return e.doc.setDirection(t)}),!0),n("phrases",null)}(Ml),function(e){var t=e.optionHandlers,n=e.helpers={};e.prototype={constructor:e,focus:function(){window.focus(),this.display.input.focus()},setOption:function(e,n){var r=this.options,i=r[e];r[e]==n&&"mode"!=e||(r[e]=n,t.hasOwnProperty(e)&&ei(this,t[e])(this,n,i),pe(this,"optionChange",this,e))},getOption:function(e){return this.options[e]},getDoc:function(){return this.doc},addKeyMap:function(e,t){this.state.keyMaps[t?"push":"unshift"](Zo(e))},removeKeyMap:function(e){for(var t=this.state.keyMaps,n=0;n<t.length;++n)if(t[n]==e||t[n].name==e)return t.splice(n,1),!0},addOverlay:ti((function(t,n){var r=t.token?t:e.getMode(this.options,t);if(r.startState)throw new Error("Overlays may not be stateful.");!function(e,t,n){for(var 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u=this.doc.sel.ranges;0==o.ch&&t.length==u.length&&u[r].from().ch>0&&Zi(this.doc,r,new Ci(o,u[r].to()),j)}}})),getTokenAt:function(e,t){return xt(this,e,t)},getLineTokens:function(e,t){return xt(this,et(e),t,!0)},getTokenTypeAt:function(e){e=st(this.doc,e);var t,n=dt(this,Ge(this.doc,e.line)),r=0,i=(n.length-1)/2,o=e.ch;if(0==o)t=n[2];else for(;;){var l=r+i>>1;if((l?n[2*l-1]:0)>=o)i=l;else{if(!(n[2*l+1]<o)){t=n[2*l+2];break}r=l+1}}var s=t?t.indexOf("overlay "):-1;return s<0?t:0==s?null:t.slice(0,s-1)},getModeAt:function(t){var n=this.doc.mode;return n.innerMode?e.innerMode(n,this.getTokenAt(t).state).mode:n},getHelper:function(e,t){return this.getHelpers(e,t)[0]},getHelpers:function(e,t){var r=[];if(!n.hasOwnProperty(t))return r;var i=n[t],o=this.getModeAt(e);if("string"==typeof o[t])i[o[t]]&&r.push(i[o[t]]);else if(o[t])for(var l=0;l<o[t].length;l++){var s=i[o[t][l]];s&&r.push(s)}else o.helperType&&i[o.helperType]?r.push(i[o.helperType]):i[o.name]&&r.push(i[o.name]);for(var 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i,o,l=e.doc,a=l.mode,s=Ve(l,(t=st(l,t)).line),u=pt(e,t.line,n),c=new Ge(s.text,e.options.tabSize,u);for(r&&(o=[]);(r||c.pos<t.ch)&&!c.eol();)c.start=c.pos,i=vt(a,c,u.state),r&&o.push(new xt(c,i,$e(l.mode,u.state)));return r?o:new xt(c,i,u.state)}function bt(e,t){if(e)for(;;){var n=e.match(/(?:^|\s+)line-(background-)?(\S+)/);if(!n)break;e=e.slice(0,n.index)+e.slice(n.index+n[0].length);var r=n[1]?"bgClass":"textClass";null==t[r]?t[r]=n[2]:new RegExp("(?:^|s)"+n[2]+"(?:$|s)").test(t[r])||(t[r]+=" "+n[2])}return e}function kt(e,t,n,r,i,o,l){var a=n.flattenSpans;null==a&&(a=e.options.flattenSpans);var s,u=0,c=null,h=new Ge(t,e.options.tabSize,r),d=e.options.addModeClass&&[null];for(""==t&&bt(gt(n,r.state),o);!h.eol();){if(h.pos>e.options.maxHighlightLength?(a=!1,l&&mt(e,t,r,h.pos),h.pos=t.length,s=null):s=bt(vt(n,h,r.state,d),o),d){var f=d[0].name;f&&(s="m-"+(s?f+" "+s:f))}if(!a||c!=s){for(;u<h.start;)i(u=Math.min(h.start,u+5e3),c);c=s}h.start=h.pos}for(;u<h.pos;){var p=Math.min(h.pos,u+5e3);i(p,c),u=p}}var wt=!1,Ct=!1;function St(e,t,n){this.marker=e,this.from=t,this.to=n}function Lt(e,t){if(e)for(var n=0;n<e.length;++n){var r=e[n];if(r.marker==t)return r}}function Tt(e,t){for(var n,r=0;r<e.length;++r)e[r]!=t&&(n||(n=[])).push(e[r]);return n}function Mt(e,t){if(t.full)return null;var n=Je(e,t.from.line)&&Ve(e,t.from.line).markedSpans,r=Je(e,t.to.line)&&Ve(e,t.to.line).markedSpans;if(!n&&!r)return null;var i=t.from.ch,o=t.to.ch,l=0==nt(t.from,t.to),a=function(e,t,n){var r;if(e)for(var i=0;i<e.length;++i){var o=e[i],l=o.marker;if(null==o.from||(l.inclusiveLeft?o.from<=t:o.from<t)||o.from==t&&"bookmark"==l.type&&(!n||!o.marker.insertLeft)){var a=null==o.to||(l.inclusiveRight?o.to>=t:o.to>t);(r||(r=[])).push(new St(l,o.from,a?null:o.to))}}return r}(n,i,l),s=function(e,t,n){var r;if(e)for(var i=0;i<e.length;++i){var o=e[i],l=o.marker;if(null==o.to||(l.inclusiveRight?o.to>=t:o.to>t)||o.from==t&&"bookmark"==l.type&&(!n||o.marker.insertLeft)){var a=null==o.from||(l.inclusiveLeft?o.from<=t:o.from<t);(r||(r=[])).push(new St(l,a?null:o.from-t,null==o.to?null:o.to-t))}}return r}(r,o,l),u=1==t.text.length,c=X(t.text).length+(u?i:0);if(a)for(var h=0;h<a.length;++h){var d=a[h];if(null==d.to){var f=Lt(s,d.marker);f?u&&(d.to=null==f.to?null:f.to+c):d.to=i}}if(s)for(var p=0;p<s.length;++p){var m=s[p];null!=m.to&&(m.to+=c),null==m.from?Lt(a,m.marker)||(m.from=c,u&&(a||(a=[])).push(m)):(m.from+=c,u&&(a||(a=[])).push(m))}a&&(a=At(a)),s&&s!=a&&(s=At(s));var g=[a];if(!u){var v,x=t.text.length-2;if(x>0&&a)for(var y=0;y<a.length;++y)null==a[y].to&&(v||(v=[])).push(new St(a[y].marker,null,null));for(var b=0;b<x;++b)g.push(v);g.push(s)}return g}function At(e){for(var t=0;t<e.length;++t){var n=e[t];null!=n.from&&n.from==n.to&&!1!==n.marker.clearWhenEmpty&&e.splice(t--,1)}return e.length?e:null}function Dt(e){var t=e.markedSpans;if(t){for(var n=0;n<t.length;++n)t[n].marker.detachLine(e);e.markedSpans=null}}function Nt(e,t){if(t){for(var n=0;n<t.length;++n)t[n].marker.attachLine(e);e.markedSpans=t}}function Ft(e){return e.inclusiveLeft?-1:0}function Ot(e){return e.inclusiveRight?1:0}function Et(e,t){var n=e.lines.length-t.lines.length;if(0!=n)return n;var r=e.find(),i=t.find(),o=nt(r.from,i.from)||Ft(e)-Ft(t);if(o)return-o;var l=nt(r.to,i.to)||Ot(e)-Ot(t);return l||t.id-e.id}function _t(e,t){var n,r=Ct&&e.markedSpans;if(r)for(var i=void 0,o=0;o<r.length;++o)(i=r[o]).marker.collapsed&&null==(t?i.from:i.to)&&(!n||Et(n,i.marker)<0)&&(n=i.marker);return n}function Pt(e){return _t(e,!0)}function zt(e){return _t(e,!1)}function Wt(e,t){var n,r=Ct&&e.markedSpans;if(r)for(var i=0;i<r.length;++i){var o=r[i];o.marker.collapsed&&(null==o.from||o.from<t)&&(null==o.to||o.to>t)&&(!n||Et(n,o.marker)<0)&&(n=o.marker)}return n}function jt(e,t,n,r,i){var o=Ve(e,t),l=Ct&&o.markedSpans;if(l)for(var a=0;a<l.length;++a){var s=l[a];if(s.marker.collapsed){var u=s.marker.find(0),c=nt(u.from,n)||Ft(s.marker)-Ft(i),h=nt(u.to,r)||Ot(s.marker)-Ot(i);if(!(c>=0&&h<=0||c<=0&&h>=0)&&(c<=0&&(s.marker.inclusiveRight&&i.inclusiveLeft?nt(u.to,n)>=0:nt(u.to,n)>0)||c>=0&&(s.marker.inclusiveRight&&i.inclusiveLeft?nt(u.from,r)<=0:nt(u.from,r)<0)))return!0}}}function Ht(e){for(var t;t=Pt(e);)e=t.find(-1,!0).line;return e}function It(e,t){var n=Ve(e,t),r=Ht(n);return n==r?t:Ye(r)}function Rt(e,t){if(t>e.lastLine())return t;var n,r=Ve(e,t);if(!Bt(e,r))return t;for(;n=zt(r);)r=n.find(1,!0).line;return Ye(r)+1}function Bt(e,t){var n=Ct&&t.markedSpans;if(n)for(var r=void 0,i=0;i<n.length;++i)if((r=n[i]).marker.collapsed){if(null==r.from)return!0;if(!r.marker.widgetNode&&0==r.from&&r.marker.inclusiveLeft&&$t(e,t,r))return!0}}function $t(e,t,n){if(null==n.to){var r=n.marker.find(1,!0);return $t(e,r.line,Lt(r.line.markedSpans,n.marker))}if(n.marker.inclusiveRight&&n.to==t.text.length)return!0;for(var i=void 0,o=0;o<t.markedSpans.length;++o)if((i=t.markedSpans[o]).marker.collapsed&&!i.marker.widgetNode&&i.from==n.to&&(null==i.to||i.to!=n.from)&&(i.marker.inclusiveLeft||n.marker.inclusiveRight)&&$t(e,t,i))return!0}function qt(e){for(var t=0,n=(e=Ht(e)).parent,r=0;r<n.lines.length;++r){var i=n.lines[r];if(i==e)break;t+=i.height}for(var o=n.parent;o;o=(n=o).parent)for(var l=0;l<o.children.length;++l){var a=o.children[l];if(a==n)break;t+=a.height}return t}function Ut(e){if(0==e.height)return 0;for(var t,n=e.text.length,r=e;t=Pt(r);){var i=t.find(0,!0);r=i.from.line,n+=i.from.ch-i.to.ch}for(r=e;t=zt(r);){var o=t.find(0,!0);n-=r.text.length-o.from.ch,n+=(r=o.to.line).text.length-o.to.ch}return n}function Gt(e){var t=e.display,n=e.doc;t.maxLine=Ve(n,n.first),t.maxLineLength=Ut(t.maxLine),t.maxLineChanged=!0,n.iter((function(e){var n=Ut(e);n>t.maxLineLength&&(t.maxLineLength=n,t.maxLine=e)}))}var Vt=function(e,t,n){this.text=e,Nt(this,t),this.height=n?n(this):1};function Kt(e){e.parent=null,Dt(e)}Vt.prototype.lineNo=function(){return Ye(this)},ye(Vt);var Xt={},Zt={};function Yt(e,t){if(!e||/^\s*$/.test(e))return null;var n=t.addModeClass?Zt:Xt;return n[e]||(n[e]=e.replace(/\S+/g,"cm-$&"))}function Qt(e,t){var n=N("span",null,null,s?"padding-right: .1px":null),r={pre:N("pre",[n],"CodeMirror-line"),content:n,col:0,pos:0,cm:e,trailingSpace:!1,splitSpaces:e.getOption("lineWrapping")};t.measure={};for(var i=0;i<=(t.rest?t.rest.length:0);i++){var o=i?t.rest[i-1]:t.line,l=void 0;r.pos=0,r.addToken=en,Ne(e.display.measure)&&(l=ce(o,e.doc.direction))&&(r.addToken=tn(r.addToken,l)),r.map=[],rn(o,r,ft(e,o,t!=e.display.externalMeasured&&Ye(o))),o.styleClasses&&(o.styleClasses.bgClass&&(r.bgClass=_(o.styleClasses.bgClass,r.bgClass||"")),o.styleClasses.textClass&&(r.textClass=_(o.styleClasses.textClass,r.textClass||""))),0==r.map.length&&r.map.push(0,0,r.content.appendChild(De(e.display.measure))),0==i?(t.measure.map=r.map,t.measure.cache={}):((t.measure.maps||(t.measure.maps=[])).push(r.map),(t.measure.caches||(t.measure.caches=[])).push({}))}if(s){var a=r.content.lastChild;(/\bcm-tab\b/.test(a.className)||a.querySelector&&a.querySelector(".cm-tab"))&&(r.content.className="cm-tab-wrap-hack")}return me(e,"renderLine",e,t.line,r.pre),r.pre.className&&(r.textClass=_(r.pre.className,r.textClass||"")),r}function Jt(e){var t=D("span","•","cm-invalidchar");return t.title="\\u"+e.charCodeAt(0).toString(16),t.setAttribute("aria-label",t.title),t}function en(e,t,n,r,i,o,s){if(t){var u,c=e.splitSpaces?function(e,t){if(e.length>1&&!/  /.test(e))return e;for(var n=t,r="",i=0;i<e.length;i++){var o=e.charAt(i);" "!=o||!n||i!=e.length-1&&32!=e.charCodeAt(i+1)||(o=" "),r+=o,n=" "==o}return r}(t,e.trailingSpace):t,h=e.cm.state.specialChars,d=!1;if(h.test(t)){u=document.createDocumentFragment();for(var f=0;;){h.lastIndex=f;var p=h.exec(t),m=p?p.index-f:t.length-f;if(m){var g=document.createTextNode(c.slice(f,f+m));l&&a<9?u.appendChild(D("span",[g])):u.appendChild(g),e.map.push(e.pos,e.pos+m,g),e.col+=m,e.pos+=m}if(!p)break;f+=m+1;var v=void 0;if("\t"==p[0]){var x=e.cm.options.tabSize,y=x-e.col%x;(v=u.appendChild(D("span",K(y),"cm-tab"))).setAttribute("role","presentation"),v.setAttribute("cm-text","\t"),e.col+=y}else"\r"==p[0]||"\n"==p[0]?((v=u.appendChild(D("span","\r"==p[0]?"␍":"␤","cm-invalidchar"))).setAttribute("cm-text",p[0]),e.col+=1):((v=e.cm.options.specialCharPlaceholder(p[0])).setAttribute("cm-text",p[0]),l&&a<9?u.appendChild(D("span",[v])):u.appendChild(v),e.col+=1);e.map.push(e.pos,e.pos+1,v),e.pos++}}else e.col+=t.length,u=document.createTextNode(c),e.map.push(e.pos,e.pos+t.length,u),l&&a<9&&(d=!0),e.pos+=t.length;if(e.trailingSpace=32==c.charCodeAt(t.length-1),n||r||i||d||o){var b=n||"";r&&(b+=r),i&&(b+=i);var k=D("span",[u],b,o);if(s)for(var w in s)s.hasOwnProperty(w)&&"style"!=w&&"class"!=w&&k.setAttribute(w,s[w]);return e.content.appendChild(k)}e.content.appendChild(u)}}function tn(e,t){return function(n,r,i,o,l,a,s){i=i?i+" cm-force-border":"cm-force-border";for(var u=n.pos,c=u+r.length;;){for(var h=void 0,d=0;d<t.length&&!((h=t[d]).to>u&&h.from<=u);d++);if(h.to>=c)return e(n,r,i,o,l,a,s);e(n,r.slice(0,h.to-u),i,o,null,a,s),o=null,r=r.slice(h.to-u),u=h.to}}}function nn(e,t,n,r){var i=!r&&n.widgetNode;i&&e.map.push(e.pos,e.pos+t,i),!r&&e.cm.display.input.needsContentAttribute&&(i||(i=e.content.appendChild(document.createElement("span"))),i.setAttribute("cm-marker",n.id)),i&&(e.cm.display.input.setUneditable(i),e.content.appendChild(i)),e.pos+=t,e.trailingSpace=!1}function rn(e,t,n){var r=e.markedSpans,i=e.text,o=0;if(r)for(var l,a,s,u,c,h,d,f=i.length,p=0,m=1,g="",v=0;;){if(v==p){s=u=c=a="",d=null,h=null,v=1/0;for(var x=[],y=void 0,b=0;b<r.length;++b){var k=r[b],w=k.marker;if("bookmark"==w.type&&k.from==p&&w.widgetNode)x.push(w);else if(k.from<=p&&(null==k.to||k.to>p||w.collapsed&&k.to==p&&k.from==p)){if(null!=k.to&&k.to!=p&&v>k.to&&(v=k.to,u=""),w.className&&(s+=" "+w.className),w.css&&(a=(a?a+";":"")+w.css),w.startStyle&&k.from==p&&(c+=" 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n&&n.line==t.line?(e.display.externalMeasured=null,t.measure=n.measure,n.built):Qt(e,t)}function pn(e,t){var n=t.text.className,r=fn(e,t);t.text==t.node&&(t.node=r.pre),t.text.parentNode.replaceChild(r.pre,t.text),t.text=r.pre,r.bgClass!=t.bgClass||r.textClass!=t.textClass?(t.bgClass=r.bgClass,t.textClass=r.textClass,mn(e,t)):n&&(t.text.className=n)}function mn(e,t){!function(e,t){var n=t.bgClass?t.bgClass+" "+(t.line.bgClass||""):t.line.bgClass;if(n&&(n+=" CodeMirror-linebackground"),t.background)n?t.background.className=n:(t.background.parentNode.removeChild(t.background),t.background=null);else if(n){var r=dn(t);t.background=r.insertBefore(D("div",null,n),r.firstChild),e.display.input.setUneditable(t.background)}}(e,t),t.line.wrapClass?dn(t).className=t.line.wrapClass:t.node!=t.text&&(t.node.className="");var n=t.textClass?t.textClass+" "+(t.line.textClass||""):t.line.textClass;t.text.className=n||""}function gn(e,t,n,r){if(t.gutter&&(t.node.removeChild(t.gutter),t.gutter=null),t.gutterBackground&&(t.node.removeChild(t.gutterBackground),t.gutterBackground=null),t.line.gutterClass){var i=dn(t);t.gutterBackground=D("div",null,"CodeMirror-gutter-background "+t.line.gutterClass,"left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px; width: "+r.gutterTotalWidth+"px"),e.display.input.setUneditable(t.gutterBackground),i.insertBefore(t.gutterBackground,t.text)}var o=t.line.gutterMarkers;if(e.options.lineNumbers||o){var l=dn(t),a=t.gutter=D("div",null,"CodeMirror-gutter-wrapper","left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px");if(e.display.input.setUneditable(a),l.insertBefore(a,t.text),t.line.gutterClass&&(a.className+=" "+t.line.gutterClass),!e.options.lineNumbers||o&&o["CodeMirror-linenumbers"]||(t.lineNumber=a.appendChild(D("div",et(e.options,n),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+r.gutterLeft["CodeMirror-linenumbers"]+"px; width: 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h=(e.options.lineWrapping?rr:nr)(e,t,n,o,c,r,i);a=(u=1!=h.level)?h.from:h.to-1,s=u?h.to:h.from-1}var d,f,p=null,m=null,g=le((function(t){var n=_n(e,o,t);return n.top+=l,n.bottom+=l,!!er(n,r,i,!1)&&(n.top<=i&&n.left<=r&&(p=t,m=n),!0)}),a,s),v=!1;if(m){var x=r-m.left<m.right-r,y=x==u;g=p+(y?0:1),f=y?"after":"before",d=x?m.left:m.right}else{u||g!=s&&g!=a||g++,f=0==g?"after":g==t.text.length?"before":_n(e,o,g-(u?1:0)).bottom+l<=i==u?"after":"before";var b=Kn(e,tt(n,g,f),"line",t,o);d=b.left,v=i<b.top?-1:i>=b.bottom?1:0}return Zn(n,g=oe(t.text,g,1),f,v,r-d)}function nr(e,t,n,r,i,o,l){var a=le((function(a){var s=i[a],u=1!=s.level;return er(Kn(e,tt(n,u?s.to:s.from,u?"before":"after"),"line",t,r),o,l,!0)}),0,i.length-1),s=i[a];if(a>0){var u=1!=s.level,c=Kn(e,tt(n,u?s.from:s.to,u?"after":"before"),"line",t,r);er(c,o,l,!0)&&c.top>l&&(s=i[a-1])}return s}function rr(e,t,n,r,i,o,l){var a=Qn(e,t,r,l),s=a.begin,u=a.end;/\s/.test(t.text.charAt(u-1))&&u--;for(var c=null,h=null,d=0;d<i.length;d++){var 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a=e.display.gutterSpecs[l].className;n[a]=o.offsetLeft+o.clientLeft+i,r[a]=o.clientWidth}return{fixedPos:ar(t),gutterTotalWidth:t.gutters.offsetWidth,gutterLeft:n,gutterWidth:r,wrapperWidth:t.wrapper.clientWidth}}function ar(e){return e.scroller.getBoundingClientRect().left-e.sizer.getBoundingClientRect().left}function sr(e){var t=ir(e.display),n=e.options.lineWrapping,r=n&&Math.max(5,e.display.scroller.clientWidth/or(e.display)-3);return function(i){if(Bt(e.doc,i))return 0;var o=0;if(i.widgets)for(var l=0;l<i.widgets.length;l++)i.widgets[l].height&&(o+=i.widgets[l].height);return n?o+(Math.ceil(i.text.length/r)||1)*t:o+t}}function ur(e){var t=e.doc,n=sr(e);t.iter((function(e){var t=n(e);t!=e.height&&Ze(e,t)}))}function cr(e,t,n,r){var i=e.display;if(!n&&"true"==Se(t).getAttribute("cm-not-content"))return null;var o,l,a=i.lineSpace.getBoundingClientRect();try{o=t.clientX-a.left,l=t.clientY-a.top}catch(t){return null}var s,u=Yn(e,o,l);if(r&&1==u.xRel&&(s=Ve(e.doc,u.line).text).length==u.ch){var c=j(s,s.length,e.options.tabSize)-s.length;u=tt(u.line,Math.max(0,Math.round((o-Tn(e.display).left)/or(e.display))-c))}return u}function hr(e,t){if(t>=e.display.viewTo)return null;if((t-=e.display.viewFrom)<0)return null;for(var n=e.display.view,r=0;r<n.length;r++)if((t-=n[r].size)<0)return r}function dr(e,t,n,r){null==t&&(t=e.doc.first),null==n&&(n=e.doc.first+e.doc.size),r||(r=0);var i=e.display;if(r&&n<i.viewTo&&(null==i.updateLineNumbers||i.updateLineNumbers>t)&&(i.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=i.viewTo)Ct&&It(e.doc,t)<i.viewTo&&pr(e);else if(n<=i.viewFrom)Ct&&Rt(e.doc,n+r)>i.viewFrom?pr(e):(i.viewFrom+=r,i.viewTo+=r);else if(t<=i.viewFrom&&n>=i.viewTo)pr(e);else if(t<=i.viewFrom){var o=mr(e,n,n+r,1);o?(i.view=i.view.slice(o.index),i.viewFrom=o.lineN,i.viewTo+=r):pr(e)}else if(n>=i.viewTo){var l=mr(e,t,t,-1);l?(i.view=i.view.slice(0,l.index),i.viewTo=l.lineN):pr(e)}else{var a=mr(e,t,t,-1),s=mr(e,n,n+r,1);a&&s?(i.view=i.view.slice(0,a.index).concat(ln(e,a.lineN,s.lineN)).concat(i.view.slice(s.index)),i.viewTo+=r):pr(e)}var u=i.externalMeasured;u&&(n<u.lineN?u.lineN+=r:t<u.lineN+u.size&&(i.externalMeasured=null))}function fr(e,t,n){e.curOp.viewChanged=!0;var r=e.display,i=e.display.externalMeasured;if(i&&t>=i.lineN&&t<i.lineN+i.size&&(r.externalMeasured=null),!(t<r.viewFrom||t>=r.viewTo)){var o=r.view[hr(e,t)];if(null!=o.node){var l=o.changes||(o.changes=[]);-1==I(l,n)&&l.push(n)}}}function pr(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function mr(e,t,n,r){var i,o=hr(e,t),l=e.display.view;if(!Ct||n==e.doc.first+e.doc.size)return{index:o,lineN:n};for(var a=e.display.viewFrom,s=0;s<o;s++)a+=l[s].size;if(a!=t){if(r>0){if(o==l.length-1)return null;i=a+l[o].size-t,o++}else i=a-t;t+=i,n+=i}for(;It(e.doc,n)!=n;){if(o==(r<0?0:l.length-1))return null;n+=r*l[o-(r<0?1:0)].size,o+=r}return{index:o,lineN:n}}function gr(e){for(var t=e.display.view,n=0,r=0;r<t.length;r++){var i=t[r];i.hidden||i.node&&!i.changes||++n}return n}function vr(e){e.display.input.showSelection(e.display.input.prepareSelection())}function xr(e,t){void 0===t&&(t=!0);for(var n=e.doc,r={},i=r.cursors=document.createDocumentFragment(),o=r.selection=document.createDocumentFragment(),l=0;l<n.sel.ranges.length;l++)if(t||l!=n.sel.primIndex){var a=n.sel.ranges[l];if(!(a.from().line>=e.display.viewTo||a.to().line<e.display.viewFrom)){var s=a.empty();(s||e.options.showCursorWhenSelecting)&&yr(e,a.head,i),s||kr(e,a,o)}}return r}function yr(e,t,n){var r=Kn(e,t,"div",null,null,!e.options.singleCursorHeightPerLine),i=n.appendChild(D("div"," ","CodeMirror-cursor"));if(i.style.left=r.left+"px",i.style.top=r.top+"px",i.style.height=Math.max(0,r.bottom-r.top)*e.options.cursorHeight+"px",r.other){var o=n.appendChild(D("div"," ","CodeMirror-cursor CodeMirror-secondarycursor"));o.style.display="",o.style.left=r.other.left+"px",o.style.top=r.other.top+"px",o.style.height=.85*(r.other.bottom-r.other.top)+"px"}}function br(e,t){return e.top-t.top||e.left-t.left}function kr(e,t,n){var r=e.display,i=e.doc,o=document.createDocumentFragment(),l=Tn(e.display),a=l.left,s=Math.max(r.sizerWidth,An(e)-r.sizer.offsetLeft)-l.right,u="ltr"==i.direction;function c(e,t,n,r){t<0&&(t=0),t=Math.round(t),r=Math.round(r),o.appendChild(D("div",null,"CodeMirror-selected","position: absolute; left: "+e+"px;\n                             top: "+t+"px; width: "+(null==n?s-e:n)+"px;\n                             height: "+(r-t)+"px"))}function h(t,n,r){var o,l,h=Ve(i,t),d=h.text.length;function f(n,r){return Vn(e,tt(t,n),"div",h,r)}function p(t,n,r){var i=Jn(e,h,null,t),o="ltr"==n==("after"==r)?"left":"right";return f("after"==r?i.begin:i.end-(/\s/.test(h.text.charAt(i.end-1))?2:1),o)[o]}var m=ce(h,i.direction);return function(e,t,n,r){if(!e)return r(t,n,"ltr",0);for(var i=!1,o=0;o<e.length;++o){var l=e[o];(l.from<n&&l.to>t||t==n&&l.to==t)&&(r(Math.max(l.from,t),Math.min(l.to,n),1==l.level?"rtl":"ltr",o),i=!0)}i||r(t,n,"ltr")}(m,n||0,null==r?d:r,(function(e,t,i,h){var g="ltr"==i,v=f(e,g?"left":"right"),x=f(t-1,g?"right":"left"),y=null==n&&0==e,b=null==r&&t==d,k=0==h,w=!m||h==m.length-1;if(x.top-v.top<=3){var C=(u?b:y)&&w,S=(u?y:b)&&k?a:(g?v:x).left,L=C?s:(g?x:v).right;c(S,v.top,L-S,v.bottom)}else{var T,M,A,D;g?(T=u&&y&&k?a:v.left,M=u?s:p(e,i,"before"),A=u?a:p(t,i,"after"),D=u&&b&&w?s:x.right):(T=u?p(e,i,"before"):a,M=!u&&y&&k?s:v.right,A=!u&&b&&w?a:x.left,D=u?p(t,i,"after"):s),c(T,v.top,M-T,v.bottom),v.bottom<x.top&&c(a,v.bottom,null,x.top),c(A,x.top,D-A,x.bottom)}(!o||br(v,o)<0)&&(o=v),br(x,o)<0&&(o=x),(!l||br(v,l)<0)&&(l=v),br(x,l)<0&&(l=x)})),{start:o,end:l}}var d=t.from(),f=t.to();if(d.line==f.line)h(d.line,d.ch,f.ch);else{var p=Ve(i,d.line),m=Ve(i,f.line),g=Ht(p)==Ht(m),v=h(d.line,d.ch,g?p.text.length+1:null).end,x=h(f.line,g?0:null,f.ch).start;g&&(v.top<x.top-2?(c(v.right,v.top,null,v.bottom),c(a,x.top,x.left,x.bottom)):c(v.right,v.top,x.left-v.right,v.bottom)),v.bottom<x.top&&c(a,v.bottom,null,x.top)}n.appendChild(o)}function wr(e){if(e.state.focused){var t=e.display;clearInterval(t.blinker);var n=!0;t.cursorDiv.style.visibility="",e.options.cursorBlinkRate>0?t.blinker=setInterval((function(){return t.cursorDiv.style.visibility=(n=!n)?"":"hidden"}),e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function Cr(e){e.state.focused||(e.display.input.focus(),Lr(e))}function Sr(e){e.state.delayingBlurEvent=!0,setTimeout((function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,Tr(e))}),100)}function Lr(e,t){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(me(e,"focus",e,t),e.state.focused=!0,E(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),s&&setTimeout((function(){return e.display.input.reset(!0)}),20)),e.display.input.receivedFocus()),wr(e))}function Tr(e,t){e.state.delayingBlurEvent||(e.state.focused&&(me(e,"blur",e,t),e.state.focused=!1,T(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout((function(){e.state.focused||(e.display.shift=!1)}),150))}function Mr(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=0;r<t.view.length;r++){var i=t.view[r],o=e.options.lineWrapping,s=void 0,u=0;if(!i.hidden){if(l&&a<8){var c=i.node.offsetTop+i.node.offsetHeight;s=c-n,n=c}else{var h=i.node.getBoundingClientRect();s=h.bottom-h.top,!o&&i.text.firstChild&&(u=i.text.firstChild.getBoundingClientRect().right-h.left-1)}var d=i.line.height-s;if((d>.005||d<-.005)&&(Ze(i.line,s),Ar(i.line),i.rest))for(var f=0;f<i.rest.length;f++)Ar(i.rest[f]);if(u>e.display.sizerWidth){var p=Math.ceil(u/or(e.display));p>e.display.maxLineLength&&(e.display.maxLineLength=p,e.display.maxLine=i.line,e.display.maxLineChanged=!0)}}}}function Ar(e){if(e.widgets)for(var t=0;t<e.widgets.length;++t){var n=e.widgets[t],r=n.node.parentNode;r&&(n.height=r.offsetHeight)}}function Dr(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop;r=Math.floor(r-Sn(e));var i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=Qe(t,r),l=Qe(t,i);if(n&&n.ensure){var a=n.ensure.from.line,s=n.ensure.to.line;a<o?(o=a,l=Qe(t,qt(Ve(t,a))+e.wrapper.clientHeight)):Math.min(s,t.lastLine())>=l&&(o=Qe(t,qt(Ve(t,s))-e.wrapper.clientHeight),l=s)}return{from:o,to:Math.max(l,o+1)}}function Nr(e,t){var n=e.display,r=ir(e.display);t.top<0&&(t.top=0);var i=e.curOp&&null!=e.curOp.scrollTop?e.curOp.scrollTop:n.scroller.scrollTop,o=Dn(e),l={};t.bottom-t.top>o&&(t.bottom=t.top+o);var a=e.doc.height+Ln(n),s=t.top<r,u=t.bottom>a-r;if(t.top<i)l.scrollTop=s?0:t.top;else if(t.bottom>i+o){var c=Math.min(t.top,(u?a:t.bottom)-o);c!=i&&(l.scrollTop=c)}var h=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:n.scroller.scrollLeft,d=An(e)-(e.options.fixedGutter?n.gutters.offsetWidth:0),f=t.right-t.left>d;return f&&(t.right=t.left+d),t.left<10?l.scrollLeft=0:t.left<h?l.scrollLeft=Math.max(0,t.left-(f?0:10)):t.right>d+h-3&&(l.scrollLeft=t.right+(f?0:10)-d),l}function Fr(e,t){null!=t&&(_r(e),e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc.scrollTop:e.curOp.scrollTop)+t)}function Or(e){_r(e);var t=e.getCursor();e.curOp.scrollToPos={from:t,to:t,margin:e.options.cursorScrollMargin}}function Er(e,t,n){null==t&&null==n||_r(e),null!=t&&(e.curOp.scrollLeft=t),null!=n&&(e.curOp.scrollTop=n)}function _r(e){var t=e.curOp.scrollToPos;t&&(e.curOp.scrollToPos=null,Pr(e,Xn(e,t.from),Xn(e,t.to),t.margin))}function Pr(e,t,n,r){var i=Nr(e,{left:Math.min(t.left,n.left),top:Math.min(t.top,n.top)-r,right:Math.max(t.right,n.right),bottom:Math.max(t.bottom,n.bottom)+r});Er(e,i.scrollLeft,i.scrollTop)}function zr(e,t){Math.abs(e.doc.scrollTop-t)<2||(n||si(e,{top:t}),Wr(e,t,!0),n&&si(e),ri(e,100))}function Wr(e,t,n){t=Math.min(e.display.scroller.scrollHeight-e.display.scroller.clientHeight,t),(e.display.scroller.scrollTop!=t||n)&&(e.doc.scrollTop=t,e.display.scrollbars.setScrollTop(t),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t))}function jr(e,t,n,r){t=Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth),(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)&&!r||(e.doc.scrollLeft=t,hi(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function Hr(e){var t=e.display,n=t.gutters.offsetWidth,r=Math.round(e.doc.height+Ln(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:r,scrollHeight:r+Mn(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}var Ir=function(e,t,n){this.cm=n;var r=this.vert=D("div",[D("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),i=this.horiz=D("div",[D("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");r.tabIndex=i.tabIndex=-1,e(r),e(i),de(r,"scroll",(function(){r.clientHeight&&t(r.scrollTop,"vertical")})),de(i,"scroll",(function(){i.clientWidth&&t(i.scrollLeft,"horizontal")})),this.checkedZeroWidth=!1,l&&a<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")};Ir.prototype.update=function(e){var t=e.scrollWidth>e.clientWidth+1,n=e.scrollHeight>e.clientHeight+1,r=e.nativeBarWidth;if(n){this.vert.style.display="block",this.vert.style.bottom=t?r+"px":"0";var i=e.viewHeight-(t?r:0);this.vert.firstChild.style.height=Math.max(0,e.scrollHeight-e.clientHeight+i)+"px"}else this.vert.style.display="",this.vert.firstChild.style.height="0";if(t){this.horiz.style.display="block",this.horiz.style.right=n?r+"px":"0",this.horiz.style.left=e.barLeft+"px";var o=e.viewWidth-e.barLeft-(n?r:0);this.horiz.firstChild.style.width=Math.max(0,e.scrollWidth-e.clientWidth+o)+"px"}else this.horiz.style.display="",this.horiz.firstChild.style.width="0";return!this.checkedZeroWidth&&e.clientHeight>0&&(0==r&&this.zeroWidthHack(),this.checkedZeroWidth=!0),{right:n?r:0,bottom:t?r:0}},Ir.prototype.setScrollLeft=function(e){this.horiz.scrollLeft!=e&&(this.horiz.scrollLeft=e),this.disableHoriz&&this.enableZeroWidthBar(this.horiz,this.disableHoriz,"horiz")},Ir.prototype.setScrollTop=function(e){this.vert.scrollTop!=e&&(this.vert.scrollTop=e),this.disableVert&&this.enableZeroWidthBar(this.vert,this.disableVert,"vert")},Ir.prototype.zeroWidthHack=function(){var e=x&&!f?"12px":"18px";this.horiz.style.height=this.vert.style.width=e,this.horiz.style.pointerEvents=this.vert.style.pointerEvents="none",this.disableHoriz=new H,this.disableVert=new H},Ir.prototype.enableZeroWidthBar=function(e,t,n){e.style.pointerEvents="auto",t.set(1e3,(function r(){var i=e.getBoundingClientRect();("vert"==n?document.elementFromPoint(i.right-1,(i.top+i.bottom)/2):document.elementFromPoint((i.right+i.left)/2,i.bottom-1))!=e?e.style.pointerEvents="none":t.set(1e3,r)}))},Ir.prototype.clear=function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)};var Rr=function(){};function Br(e,t){t||(t=Hr(e));var n=e.display.barWidth,r=e.display.barHeight;$r(e,t);for(var i=0;i<4&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&Mr(e),$r(e,Hr(e)),n=e.display.barWidth,r=e.display.barHeight}function $r(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",n.heightForcer.style.borderBottom=r.bottom+"px solid transparent",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}Rr.prototype.update=function(){return{bottom:0,right:0}},Rr.prototype.setScrollLeft=function(){},Rr.prototype.setScrollTop=function(){},Rr.prototype.clear=function(){};var qr={native:Ir,null:Rr};function Ur(e){e.display.scrollbars&&(e.display.scrollbars.clear(),e.display.scrollbars.addClass&&T(e.display.wrapper,e.display.scrollbars.addClass)),e.display.scrollbars=new qr[e.options.scrollbarStyle]((function(t){e.display.wrapper.insertBefore(t,e.display.scrollbarFiller),de(t,"mousedown",(function(){e.state.focused&&setTimeout((function(){return e.display.input.focus()}),0)})),t.setAttribute("cm-not-content","true")}),(function(t,n){"horizontal"==n?jr(e,t):zr(e,t)}),e),e.display.scrollbars.addClass&&E(e.display.wrapper,e.display.scrollbars.addClass)}var Gr=0;function Vr(e){var t;e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:0,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Gr},t=e.curOp,an?an.ops.push(t):t.ownsGroup=an={ops:[t],delayedCallbacks:[]}}function Kr(e){var t=e.curOp;t&&function(e,t){var n=e.ownsGroup;if(n)try{!function(e){var t=e.delayedCallbacks,n=0;do{for(;n<t.length;n++)t[n].call(null);for(var r=0;r<e.ops.length;r++){var i=e.ops[r];if(i.cursorActivityHandlers)for(;i.cursorActivityCalled<i.cursorActivityHandlers.length;)i.cursorActivityHandlers[i.cursorActivityCalled++].call(null,i.cm)}}while(n<t.length)}(n)}finally{an=null,t(n)}}(t,(function(e){for(var t=0;t<e.ops.length;t++)e.ops[t].cm.curOp=null;!function(e){for(var t=e.ops,n=0;n<t.length;n++)Xr(t[n]);for(var r=0;r<t.length;r++)(i=t[r]).updatedDisplay=i.mustUpdate&&li(i.cm,i.update);for(var i,o=0;o<t.length;o++)Zr(t[o]);for(var l=0;l<t.length;l++)Yr(t[l]);for(var a=0;a<t.length;a++)Qr(t[a])}(e)}))}function Xr(e){var t=e.cm,n=t.display;!function(e){var t=e.display;!t.scrollbarsClipped&&t.scroller.offsetWidth&&(t.nativeBarWidth=t.scroller.offsetWidth-t.scroller.clientWidth,t.heightForcer.style.height=Mn(e)+"px",t.sizer.style.marginBottom=-t.nativeBarWidth+"px",t.sizer.style.borderRightWidth=Mn(e)+"px",t.scrollbarsClipped=!0)}(t),e.updateMaxLine&&Gt(t),e.mustUpdate=e.viewChanged||e.forceUpdate||null!=e.scrollTop||e.scrollToPos&&(e.scrollToPos.from.line<n.viewFrom||e.scrollToPos.to.line>=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new oi(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function Zr(e){var t=e.cm,n=t.display;e.updatedDisplay&&Mr(t),e.barMeasure=Hr(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Fn(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Mn(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-An(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}function Yr(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeft<t.doc.scrollLeft&&jr(t,Math.min(t.display.scroller.scrollLeft,e.maxScrollLeft),!0),t.display.maxLineChanged=!1);var n=e.focus&&e.focus==O();e.preparedSelection&&t.display.input.showSelection(e.preparedSelection,n),(e.updatedDisplay||e.startHeight!=t.doc.height)&&Br(t,e.barMeasure),e.updatedDisplay&&ci(t,e.barMeasure),e.selectionChanged&&wr(t),t.state.focused&&e.updateInput&&t.display.input.reset(e.typing),n&&Cr(e.cm)}function Qr(e){var t=e.cm,n=t.display,r=t.doc;e.updatedDisplay&&ai(t,e.update),null==n.wheelStartX||null==e.scrollTop&&null==e.scrollLeft&&!e.scrollToPos||(n.wheelStartX=n.wheelStartY=null),null!=e.scrollTop&&Wr(t,e.scrollTop,e.forceScroll),null!=e.scrollLeft&&jr(t,e.scrollLeft,!0,!0),e.scrollToPos&&function(e,t){if(!ge(e,"scrollCursorIntoView")){var n=e.display,r=n.sizer.getBoundingClientRect(),i=null;if(t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null!=i&&!p){var o=D("div","​",null,"position: absolute;\n                         top: "+(t.top-n.viewOffset-Sn(e.display))+"px;\n                         height: "+(t.bottom-t.top+Mn(e)+n.barHeight)+"px;\n                         left: "+t.left+"px; width: "+Math.max(2,t.right-t.left)+"px;");e.display.lineSpace.appendChild(o),o.scrollIntoView(i),e.display.lineSpace.removeChild(o)}}}(t,function(e,t,n,r){var i;null==r&&(r=0),e.options.lineWrapping||t!=n||(n="before"==(t=t.ch?tt(t.line,"before"==t.sticky?t.ch-1:t.ch,"after"):t).sticky?tt(t.line,t.ch+1,"before"):t);for(var o=0;o<5;o++){var l=!1,a=Kn(e,t),s=n&&n!=t?Kn(e,n):a,u=Nr(e,i={left:Math.min(a.left,s.left),top:Math.min(a.top,s.top)-r,right:Math.max(a.left,s.left),bottom:Math.max(a.bottom,s.bottom)+r}),c=e.doc.scrollTop,h=e.doc.scrollLeft;if(null!=u.scrollTop&&(zr(e,u.scrollTop),Math.abs(e.doc.scrollTop-c)>1&&(l=!0)),null!=u.scrollLeft&&(jr(e,u.scrollLeft),Math.abs(e.doc.scrollLeft-h)>1&&(l=!0)),!l)break}return i}(t,st(r,e.scrollToPos.from),st(r,e.scrollToPos.to),e.scrollToPos.margin));var i=e.maybeHiddenMarkers,o=e.maybeUnhiddenMarkers;if(i)for(var l=0;l<i.length;++l)i[l].lines.length||me(i[l],"hide");if(o)for(var a=0;a<o.length;++a)o[a].lines.length&&me(o[a],"unhide");n.wrapper.offsetHeight&&(r.scrollTop=t.display.scroller.scrollTop),e.changeObjs&&me(t,"changes",t,e.changeObjs),e.update&&e.update.finish()}function Jr(e,t){if(e.curOp)return t();Vr(e);try{return t()}finally{Kr(e)}}function ei(e,t){return function(){if(e.curOp)return t.apply(e,arguments);Vr(e);try{return t.apply(e,arguments)}finally{Kr(e)}}}function ti(e){return function(){if(this.curOp)return e.apply(this,arguments);Vr(this);try{return e.apply(this,arguments)}finally{Kr(this)}}}function ni(e){return function(){var t=this.cm;if(!t||t.curOp)return e.apply(this,arguments);Vr(t);try{return e.apply(this,arguments)}finally{Kr(t)}}}function ri(e,t){e.doc.highlightFrontier<e.display.viewTo&&e.state.highlight.set(t,z(ii,e))}function ii(e){var t=e.doc;if(!(t.highlightFrontier>=e.display.viewTo)){var n=+new Date+e.options.workTime,r=pt(e,t.highlightFrontier),i=[];t.iter(r.line,Math.min(t.first+t.size,e.display.viewTo+500),(function(o){if(r.line>=e.display.viewFrom){var l=o.styles,a=o.text.length>e.options.maxHighlightLength?$e(t.mode,r.state):null,s=dt(e,o,r,!0);a&&(r.state=a),o.styles=s.styles;var u=o.styleClasses,c=s.classes;c?o.styleClasses=c:u&&(o.styleClasses=null);for(var h=!l||l.length!=o.styles.length||u!=c&&(!u||!c||u.bgClass!=c.bgClass||u.textClass!=c.textClass),d=0;!h&&d<l.length;++d)h=l[d]!=o.styles[d];h&&i.push(r.line),o.stateAfter=r.save(),r.nextLine()}else o.text.length<=e.options.maxHighlightLength&&mt(e,o.text,r),o.stateAfter=r.line%5==0?r.save():null,r.nextLine();if(+new Date>n)return ri(e,e.options.workDelay),!0})),t.highlightFrontier=r.line,t.modeFrontier=Math.max(t.modeFrontier,r.line),i.length&&Jr(e,(function(){for(var t=0;t<i.length;t++)fr(e,i[t],"text")}))}}var oi=function(e,t,n){var r=e.display;this.viewport=t,this.visible=Dr(r,e.doc,t),this.editorIsHidden=!r.wrapper.offsetWidth,this.wrapperHeight=r.wrapper.clientHeight,this.wrapperWidth=r.wrapper.clientWidth,this.oldDisplayWidth=An(e),this.force=n,this.dims=lr(e),this.events=[]};function li(e,t){var n=e.display,r=e.doc;if(t.editorIsHidden)return pr(e),!1;if(!t.force&&t.visible.from>=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==gr(e))return!1;di(e)&&(pr(e),t.dims=lr(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),l=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFrom<o&&o-n.viewFrom<20&&(o=Math.max(r.first,n.viewFrom)),n.viewTo>l&&n.viewTo-l<20&&(l=Math.min(i,n.viewTo)),Ct&&(o=It(e.doc,o),l=Rt(e.doc,l));var a=o!=n.viewFrom||l!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;!function(e,t,n){var r=e.display;0==r.view.length||t>=r.viewTo||n<=r.viewFrom?(r.view=ln(e,t,n),r.viewFrom=t):(r.viewFrom>t?r.view=ln(e,t,r.viewFrom).concat(r.view):r.viewFrom<t&&(r.view=r.view.slice(hr(e,t))),r.viewFrom=t,r.viewTo<n?r.view=r.view.concat(ln(e,r.viewTo,n)):r.viewTo>n&&(r.view=r.view.slice(0,hr(e,n)))),r.viewTo=n}(e,o,l),n.viewOffset=qt(Ve(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var u=gr(e);if(!a&&0==u&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var c=function(e){if(e.hasFocus())return null;var t=O();if(!t||!F(e.display.lineDiv,t))return null;var n={activeElt:t};if(window.getSelection){var r=window.getSelection();r.anchorNode&&r.extend&&F(e.display.lineDiv,r.anchorNode)&&(n.anchorNode=r.anchorNode,n.anchorOffset=r.anchorOffset,n.focusNode=r.focusNode,n.focusOffset=r.focusOffset)}return n}(e);return u>4&&(n.lineDiv.style.display="none"),function(e,t,n){var r=e.display,i=e.options.lineNumbers,o=r.lineDiv,l=o.firstChild;function a(t){var n=t.nextSibling;return s&&x&&e.display.currentWheelTarget==t?t.style.display="none":t.parentNode.removeChild(t),n}for(var u=r.view,c=r.viewFrom,h=0;h<u.length;h++){var d=u[h];if(d.hidden);else if(d.node&&d.node.parentNode==o){for(;l!=d.node;)l=a(l);var f=i&&null!=t&&t<=c&&d.lineNumber;d.changes&&(I(d.changes,"gutter")>-1&&(f=!1),hn(e,d,c,n)),f&&(M(d.lineNumber),d.lineNumber.appendChild(document.createTextNode(et(e.options,c)))),l=d.node.nextSibling}else{var p=xn(e,d,c,n);o.insertBefore(p,l)}c+=d.size}for(;l;)l=a(l)}(e,n.updateLineNumbers,t.dims),u>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,function(e){if(e&&e.activeElt&&e.activeElt!=O()&&(e.activeElt.focus(),e.anchorNode&&F(document.body,e.anchorNode)&&F(document.body,e.focusNode))){var t=window.getSelection(),n=document.createRange();n.setEnd(e.anchorNode,e.anchorOffset),n.collapse(!1),t.removeAllRanges(),t.addRange(n),t.extend(e.focusNode,e.focusOffset)}}(c),M(n.cursorDiv),M(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,a&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,ri(e,400)),n.updateLineNumbers=null,!0}function ai(e,t){for(var n=t.viewport,r=!0;(r&&e.options.lineWrapping&&t.oldDisplayWidth!=An(e)||(n&&null!=n.top&&(n={top:Math.min(e.doc.height+Ln(e.display)-Dn(e),n.top)}),t.visible=Dr(e.display,e.doc,n),!(t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)))&&li(e,t);r=!1){Mr(e);var i=Hr(e);vr(e),Br(e,i),ci(e,i),t.force=!1}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function si(e,t){var n=new oi(e,t);if(li(e,n)){Mr(e),ai(e,n);var r=Hr(e);vr(e),Br(e,r),ci(e,r),n.finish()}}function ui(e){var t=e.gutters.offsetWidth;e.sizer.style.marginLeft=t+"px"}function ci(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+Mn(e)+"px"}function hi(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=ar(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",l=0;l<n.length;l++)if(!n[l].hidden){e.options.fixedGutter&&(n[l].gutter&&(n[l].gutter.style.left=o),n[l].gutterBackground&&(n[l].gutterBackground.style.left=o));var a=n[l].alignable;if(a)for(var s=0;s<a.length;s++)a[s].style.left=o}e.options.fixedGutter&&(t.gutters.style.left=r+i+"px")}}function di(e){if(!e.options.lineNumbers)return!1;var t=e.doc,n=et(e.options,t.first+t.size-1),r=e.display;if(n.length!=r.lineNumChars){var i=r.measure.appendChild(D("div",[D("div",n)],"CodeMirror-linenumber CodeMirror-gutter-elt")),o=i.firstChild.offsetWidth,l=i.offsetWidth-o;return r.lineGutter.style.width="",r.lineNumInnerWidth=Math.max(o,r.lineGutter.offsetWidth-l)+1,r.lineNumWidth=r.lineNumInnerWidth+l,r.lineNumChars=r.lineNumInnerWidth?n.length:-1,r.lineGutter.style.width=r.lineNumWidth+"px",ui(e.display),!0}return!1}function fi(e,t){for(var n=[],r=!1,i=0;i<e.length;i++){var o=e[i],l=null;if("string"!=typeof o&&(l=o.style,o=o.className),"CodeMirror-linenumbers"==o){if(!t)continue;r=!0}n.push({className:o,style:l})}return t&&!r&&n.push({className:"CodeMirror-linenumbers",style:null}),n}function pi(e){var t=e.gutters,n=e.gutterSpecs;M(t),e.lineGutter=null;for(var r=0;r<n.length;++r){var i=n[r],o=i.className,l=i.style,a=t.appendChild(D("div",null,"CodeMirror-gutter "+o));l&&(a.style.cssText=l),"CodeMirror-linenumbers"==o&&(e.lineGutter=a,a.style.width=(e.lineNumWidth||1)+"px")}t.style.display=n.length?"":"none",ui(e)}function mi(e){pi(e.display),dr(e),hi(e)}function gi(e,t,r,i){var o=this;this.input=r,o.scrollbarFiller=D("div",null,"CodeMirror-scrollbar-filler"),o.scrollbarFiller.setAttribute("cm-not-content","true"),o.gutterFiller=D("div",null,"CodeMirror-gutter-filler"),o.gutterFiller.setAttribute("cm-not-content","true"),o.lineDiv=N("div",null,"CodeMirror-code"),o.selectionDiv=D("div",null,null,"position: relative; z-index: 1"),o.cursorDiv=D("div",null,"CodeMirror-cursors"),o.measure=D("div",null,"CodeMirror-measure"),o.lineMeasure=D("div",null,"CodeMirror-measure"),o.lineSpace=N("div",[o.measure,o.lineMeasure,o.selectionDiv,o.cursorDiv,o.lineDiv],null,"position: relative; outline: none");var u=N("div",[o.lineSpace],"CodeMirror-lines");o.mover=D("div",[u],null,"position: relative"),o.sizer=D("div",[o.mover],"CodeMirror-sizer"),o.sizerWidth=null,o.heightForcer=D("div",null,null,"position: absolute; height: "+R+"px; width: 1px;"),o.gutters=D("div",null,"CodeMirror-gutters"),o.lineGutter=null,o.scroller=D("div",[o.sizer,o.heightForcer,o.gutters],"CodeMirror-scroll"),o.scroller.setAttribute("tabIndex","-1"),o.wrapper=D("div",[o.scrollbarFiller,o.gutterFiller,o.scroller],"CodeMirror"),l&&a<8&&(o.gutters.style.zIndex=-1,o.scroller.style.paddingRight=0),s||n&&v||(o.scroller.draggable=!0),e&&(e.appendChild?e.appendChild(o.wrapper):e(o.wrapper)),o.viewFrom=o.viewTo=t.first,o.reportedViewFrom=o.reportedViewTo=t.first,o.view=[],o.renderedView=null,o.externalMeasured=null,o.viewOffset=0,o.lastWrapHeight=o.lastWrapWidth=0,o.updateLineNumbers=null,o.nativeBarWidth=o.barHeight=o.barWidth=0,o.scrollbarsClipped=!1,o.lineNumWidth=o.lineNumInnerWidth=o.lineNumChars=null,o.alignWidgets=!1,o.cachedCharWidth=o.cachedTextHeight=o.cachedPaddingH=null,o.maxLine=null,o.maxLineLength=0,o.maxLineChanged=!1,o.wheelDX=o.wheelDY=o.wheelStartX=o.wheelStartY=null,o.shift=!1,o.selForContextMenu=null,o.activeTouch=null,o.gutterSpecs=fi(i.gutters,i.lineNumbers),pi(o),r.init(o)}oi.prototype.signal=function(e,t){xe(e,t)&&this.events.push(arguments)},oi.prototype.finish=function(){for(var e=0;e<this.events.length;e++)me.apply(null,this.events[e])};var vi=0,xi=null;function yi(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}}function bi(e){var t=yi(e);return t.x*=xi,t.y*=xi,t}function ki(e,t){var r=yi(t),i=r.x,o=r.y,l=e.display,a=l.scroller,u=a.scrollWidth>a.clientWidth,c=a.scrollHeight>a.clientHeight;if(i&&u||o&&c){if(o&&x&&s)e:for(var d=t.target,f=l.view;d!=a;d=d.parentNode)for(var p=0;p<f.length;p++)if(f[p].node==d){e.display.currentWheelTarget=d;break e}if(i&&!n&&!h&&null!=xi)return o&&c&&zr(e,Math.max(0,a.scrollTop+o*xi)),jr(e,Math.max(0,a.scrollLeft+i*xi)),(!o||o&&c)&&be(t),void(l.wheelStartX=null);if(o&&null!=xi){var m=o*xi,g=e.doc.scrollTop,v=g+l.wrapper.clientHeight;m<0?g=Math.max(0,g+m-50):v=Math.min(e.doc.height,v+m+50),si(e,{top:g,bottom:v})}vi<20&&(null==l.wheelStartX?(l.wheelStartX=a.scrollLeft,l.wheelStartY=a.scrollTop,l.wheelDX=i,l.wheelDY=o,setTimeout((function(){if(null!=l.wheelStartX){var e=a.scrollLeft-l.wheelStartX,t=a.scrollTop-l.wheelStartY,n=t&&l.wheelDY&&t/l.wheelDY||e&&l.wheelDX&&e/l.wheelDX;l.wheelStartX=l.wheelStartY=null,n&&(xi=(xi*vi+n)/(vi+1),++vi)}}),200)):(l.wheelDX+=i,l.wheelDY+=o))}}l?xi=-.53:n?xi=15:c?xi=-.7:d&&(xi=-1/3);var wi=function(e,t){this.ranges=e,this.primIndex=t};wi.prototype.primary=function(){return this.ranges[this.primIndex]},wi.prototype.equals=function(e){if(e==this)return!0;if(e.primIndex!=this.primIndex||e.ranges.length!=this.ranges.length)return!1;for(var t=0;t<this.ranges.length;t++){var n=this.ranges[t],r=e.ranges[t];if(!rt(n.anchor,r.anchor)||!rt(n.head,r.head))return!1}return!0},wi.prototype.deepCopy=function(){for(var e=[],t=0;t<this.ranges.length;t++)e[t]=new Ci(it(this.ranges[t].anchor),it(this.ranges[t].head));return new wi(e,this.primIndex)},wi.prototype.somethingSelected=function(){for(var e=0;e<this.ranges.length;e++)if(!this.ranges[e].empty())return!0;return!1},wi.prototype.contains=function(e,t){t||(t=e);for(var n=0;n<this.ranges.length;n++){var r=this.ranges[n];if(nt(t,r.from())>=0&&nt(e,r.to())<=0)return n}return-1};var Ci=function(e,t){this.anchor=e,this.head=t};function Si(e,t,n){var r=e&&e.options.selectionsMayTouch,i=t[n];t.sort((function(e,t){return nt(e.from(),t.from())})),n=I(t,i);for(var o=1;o<t.length;o++){var l=t[o],a=t[o-1],s=nt(a.to(),l.from());if(r&&!l.empty()?s>0:s>=0){var u=lt(a.from(),l.from()),c=ot(a.to(),l.to()),h=a.empty()?l.from()==l.head:a.from()==a.head;o<=n&&--n,t.splice(--o,2,new Ci(h?c:u,h?u:c))}}return new wi(t,n)}function Li(e,t){return new wi([new Ci(e,t||e)],0)}function Ti(e){return e.text?tt(e.from.line+e.text.length-1,X(e.text).length+(1==e.text.length?e.from.ch:0)):e.to}function Mi(e,t){if(nt(e,t.from)<0)return e;if(nt(e,t.to)<=0)return Ti(t);var n=e.line+t.text.length-(t.to.line-t.from.line)-1,r=e.ch;return e.line==t.to.line&&(r+=Ti(t).ch-t.to.ch),tt(n,r)}function Ai(e,t){for(var n=[],r=0;r<e.sel.ranges.length;r++){var i=e.sel.ranges[r];n.push(new Ci(Mi(i.anchor,t),Mi(i.head,t)))}return Si(e.cm,n,e.sel.primIndex)}function Di(e,t,n){return e.line==t.line?tt(n.line,e.ch-t.ch+n.ch):tt(n.line+(e.line-t.line),e.ch)}function Ni(e){e.doc.mode=Ie(e.options,e.doc.modeOption),Fi(e)}function Fi(e){e.doc.iter((function(e){e.stateAfter&&(e.stateAfter=null),e.styles&&(e.styles=null)})),e.doc.modeFrontier=e.doc.highlightFrontier=e.doc.first,ri(e,100),e.state.modeGen++,e.curOp&&dr(e)}function Oi(e,t){return 0==t.from.ch&&0==t.to.ch&&""==X(t.text)&&(!e.cm||e.cm.options.wholeLineUpdateBefore)}function Ei(e,t,n,r){function i(e){return n?n[e]:null}function 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n=e,r=e+t;n<r;++n){var i=this.lines[n];this.height-=i.height,Kt(i),un(i,"delete")}this.lines.splice(e,t)},collapse:function(e){e.push.apply(e,this.lines)},insertInner:function(e,t,n){this.height+=n,this.lines=this.lines.slice(0,e).concat(t).concat(this.lines.slice(e));for(var r=0;r<t.length;++r)t[r].parent=this},iterN:function(e,t,n){for(var r=e+t;e<r;++e)if(n(this.lines[e]))return!0}},ko.prototype={chunkSize:function(){return this.size},removeInner:function(e,t){this.size-=t;for(var n=0;n<this.children.length;++n){var r=this.children[n],i=r.chunkSize();if(e<i){var o=Math.min(t,i-e),l=r.height;if(r.removeInner(e,o),this.height-=l-r.height,i==o&&(this.children.splice(n--,1),r.parent=null),0==(t-=o))break;e=0}else e-=i}if(this.size-t<25&&(this.children.length>1||!(this.children[0]instanceof bo))){var a=[];this.collapse(a),this.children=[new bo(a)],this.children[0].parent=this}},collapse:function(e){for(var t=0;t<this.children.length;++t)this.children[t].collapse(e)},insertInner:function(e,t,n){this.size+=t.length,this.height+=n;for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<=o){if(i.insertInner(e,t,n),i.lines&&i.lines.length>50){for(var l=i.lines.length%25+25,a=l;a<i.lines.length;){var s=new bo(i.lines.slice(a,a+=25));i.height-=s.height,this.children.splice(++r,0,s),s.parent=this}i.lines=i.lines.slice(0,l),this.maybeSpill()}break}e-=o}},maybeSpill:function(){if(!(this.children.length<=10)){var e=this;do{var t=new ko(e.children.splice(e.children.length-5,5));if(e.parent){e.size-=t.size,e.height-=t.height;var n=I(e.parent.children,e);e.parent.children.splice(n+1,0,t)}else{var r=new ko(e.children);r.parent=e,e.children=[r,t],e=r}t.parent=e.parent}while(e.children.length>10);e.parent.maybeSpill()}},iterN:function(e,t,n){for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<o){var l=Math.min(t,o-e);if(i.iterN(e,l,n))return!0;if(0==(t-=l))break;e=0}else e-=o}}};var wo=function(e,t,n){if(n)for(var r in n)n.hasOwnProperty(r)&&(this[r]=n[r]);this.doc=e,this.node=t};function Co(e,t,n){qt(t)<(e.curOp&&e.curOp.scrollTop||e.doc.scrollTop)&&Fr(e,n)}wo.prototype.clear=function(){var e=this.doc.cm,t=this.line.widgets,n=this.line,r=Ye(n);if(null!=r&&t){for(var i=0;i<t.length;++i)t[i]==this&&t.splice(i--,1);t.length||(n.widgets=null);var o=wn(this);Ze(n,Math.max(0,n.height-o)),e&&(Jr(e,(function(){Co(e,n,-o),fr(e,r,"widget")})),un(e,"lineWidgetCleared",e,this,r))}},wo.prototype.changed=function(){var e=this,t=this.height,n=this.doc.cm,r=this.line;this.height=null;var i=wn(this)-t;i&&(Bt(this.doc,r)||Ze(r,r.height+i),n&&Jr(n,(function(){n.curOp.forceUpdate=!0,Co(n,r,i),un(n,"lineWidgetChanged",n,e,Ye(r))})))},ye(wo);var So=0,Lo=function(e,t){this.lines=[],this.type=t,this.doc=e,this.id=++So};function To(e,t,n,r,i){if(r&&r.shared)return function(e,t,n,r,i){(r=W(r)).shared=!1;var o=[To(e,t,n,r,i)],l=o[0],a=r.widgetNode;return _i(e,(function(e){a&&(r.widgetNode=a.cloneNode(!0)),o.push(To(e,st(e,t),st(e,n),r,i));for(var s=0;s<e.linked.length;++s)if(e.linked[s].isParent)return;l=X(o)})),new Mo(o,l)}(e,t,n,r,i);if(e.cm&&!e.cm.curOp)return ei(e.cm,To)(e,t,n,r,i);var o=new Lo(e,i),l=nt(t,n);if(r&&W(r,o,!1),l>0||0==l&&!1!==o.clearWhenEmpty)return o;if(o.replacedWith&&(o.collapsed=!0,o.widgetNode=N("span",[o.replacedWith],"CodeMirror-widget"),r.handleMouseEvents||o.widgetNode.setAttribute("cm-ignore-events","true"),r.insertLeft&&(o.widgetNode.insertLeft=!0)),o.collapsed){if(jt(e,t.line,t,n,o)||t.line!=n.line&&jt(e,n.line,t,n,o))throw new Error("Inserting collapsed marker partially overlapping an existing one");Ct=!0}o.addToHistory&&Ii(e,{from:t,to:n,origin:"markText"},e.sel,NaN);var a,s=t.line,u=e.cm;if(e.iter(s,n.line+1,(function(e){u&&o.collapsed&&!u.options.lineWrapping&&Ht(e)==u.display.maxLine&&(a=!0),o.collapsed&&s!=t.line&&Ze(e,0),function(e,t){e.markedSpans=e.markedSpans?e.markedSpans.concat([t]):[t],t.marker.attachLine(e)}(e,new St(o,s==t.line?t.ch:null,s==n.line?n.ch:null)),++s})),o.collapsed&&e.iter(t.line,n.line+1,(function(t){Bt(e,t)&&Ze(t,0)})),o.clearOnEnter&&de(o,"beforeCursorEnter",(function(){return o.clear()})),o.readOnly&&(wt=!0,(e.history.done.length||e.history.undone.length)&&e.clearHistory()),o.collapsed&&(o.id=++So,o.atomic=!0),u){if(a&&(u.curOp.updateMaxLine=!0),o.collapsed)dr(u,t.line,n.line+1);else if(o.className||o.startStyle||o.endStyle||o.css||o.attributes||o.title)for(var c=t.line;c<=n.line;c++)fr(u,c,"text");o.atomic&&no(u.doc),un(u,"markerAdded",u,o)}return o}Lo.prototype.clear=function(){if(!this.explicitlyCleared){var e=this.doc.cm,t=e&&!e.curOp;if(t&&Vr(e),xe(this,"clear")){var n=this.find();n&&un(this,"clear",n.from,n.to)}for(var r=null,i=null,o=0;o<this.lines.length;++o){var l=this.lines[o],a=Lt(l.markedSpans,this);e&&!this.collapsed?fr(e,Ye(l),"text"):e&&(null!=a.to&&(i=Ye(l)),null!=a.from&&(r=Ye(l))),l.markedSpans=Tt(l.markedSpans,a),null==a.from&&this.collapsed&&!Bt(this.doc,l)&&e&&Ze(l,ir(e.display))}if(e&&this.collapsed&&!e.options.lineWrapping)for(var s=0;s<this.lines.length;++s){var u=Ht(this.lines[s]),c=Ut(u);c>e.display.maxLineLength&&(e.display.maxLine=u,e.display.maxLineLength=c,e.display.maxLineChanged=!0)}null!=r&&e&&this.collapsed&&dr(e,r,i+1),this.lines.length=0,this.explicitlyCleared=!0,this.atomic&&this.doc.cantEdit&&(this.doc.cantEdit=!1,e&&no(e.doc)),e&&un(e,"markerCleared",e,this,r,i),t&&Kr(e),this.parent&&this.parent.clear()}},Lo.prototype.find=function(e,t){var n,r;null==e&&"bookmark"==this.type&&(e=1);for(var i=0;i<this.lines.length;++i){var o=this.lines[i],l=Lt(o.markedSpans,this);if(null!=l.from&&(n=tt(t?o:Ye(o),l.from),-1==e))return n;if(null!=l.to&&(r=tt(t?o:Ye(o),l.to),1==e))return r}return n&&{from:n,to:r}},Lo.prototype.changed=function(){var e=this,t=this.find(-1,!0),n=this,r=this.doc.cm;t&&r&&Jr(r,(function(){var i=t.line,o=Ye(t.line),l=On(r,o);if(l&&(Hn(l),r.curOp.selectionChanged=r.curOp.forceUpdate=!0),r.curOp.updateMaxLine=!0,!Bt(n.doc,i)&&null!=n.height){var a=n.height;n.height=null;var s=wn(n)-a;s&&Ze(i,i.height+s)}un(r,"markerChanged",r,e)}))},Lo.prototype.attachLine=function(e){if(!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;t.maybeHiddenMarkers&&-1!=I(t.maybeHiddenMarkers,this)||(t.maybeUnhiddenMarkers||(t.maybeUnhiddenMarkers=[])).push(this)}this.lines.push(e)},Lo.prototype.detachLine=function(e){if(this.lines.splice(I(this.lines,e),1),!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;(t.maybeHiddenMarkers||(t.maybeHiddenMarkers=[])).push(this)}},ye(Lo);var Mo=function(e,t){this.markers=e,this.primary=t;for(var n=0;n<e.length;++n)e[n].parent=this};function Ao(e){return e.findMarks(tt(e.first,0),e.clipPos(tt(e.lastLine())),(function(e){return e.parent}))}function Do(e){for(var t=function(t){var n=e[t],r=[n.primary.doc];_i(n.primary.doc,(function(e){return r.push(e)}));for(var i=0;i<n.markers.length;i++){var o=n.markers[i];-1==I(r,o.doc)&&(o.parent=null,n.markers.splice(i--,1))}},n=0;n<e.length;n++)t(n)}Mo.prototype.clear=function(){if(!this.explicitlyCleared){this.explicitlyCleared=!0;for(var e=0;e<this.markers.length;++e)this.markers[e].clear();un(this,"clear")}},Mo.prototype.find=function(e,t){return this.primary.find(e,t)},ye(Mo);var No=0,Fo=function(e,t,n,r,i){if(!(this instanceof Fo))return new Fo(e,t,n,r,i);null==n&&(n=0),ko.call(this,[new bo([new Vt("",null)])]),this.first=n,this.scrollTop=this.scrollLeft=0,this.cantEdit=!1,this.cleanGeneration=1,this.modeFrontier=this.highlightFrontier=n;var o=tt(n,0);this.sel=Li(o),this.history=new Wi(null),this.id=++No,this.modeOption=t,this.lineSep=r,this.direction="rtl"==i?"rtl":"ltr",this.extend=!1,"string"==typeof e&&(e=this.splitLines(e)),Ei(this,{from:o,to:o,text:e}),Ji(this,Li(o),$)};Fo.prototype=Q(ko.prototype,{constructor:Fo,iter:function(e,t,n){n?this.iterN(e-this.first,t-e,n):this.iterN(this.first,this.first+this.size,e)},insert:function(e,t){for(var n=0,r=0;r<t.length;++r)n+=t[r].height;this.insertInner(e-this.first,t,n)},remove:function(e,t){this.removeInner(e-this.first,t)},getValue:function(e){var t=Xe(this,this.first,this.first+this.size);return!1===e?t:t.join(e||this.lineSeparator())},setValue:ni((function(e){var t=tt(this.first,0),n=this.first+this.size-1;uo(this,{from:t,to:tt(n,Ve(this,n).text.length),text:this.splitLines(e),origin:"setValue",full:!0},!0),this.cm&&Er(this.cm,0,0),Ji(this,Li(t),$)})),replaceRange:function(e,t,n,r){mo(this,e,t=st(this,t),n=n?st(this,n):t,r)},getRange:function(e,t,n){var r=Ke(this,st(this,e),st(this,t));return!1===n?r:r.join(n||this.lineSeparator())},getLine:function(e){var t=this.getLineHandle(e);return t&&t.text},getLineHandle:function(e){if(Je(this,e))return Ve(this,e)},getLineNumber:function(e){return Ye(e)},getLineHandleVisualStart:function(e){return"number"==typeof e&&(e=Ve(this,e)),Ht(e)},lineCount:function(){return this.size},firstLine:function(){return this.first},lastLine:function(){return this.first+this.size-1},clipPos:function(e){return st(this,e)},getCursor:function(e){var t=this.sel.primary();return null==e||"head"==e?t.head:"anchor"==e?t.anchor:"end"==e||"to"==e||!1===e?t.to():t.from()},listSelections:function(){return this.sel.ranges},somethingSelected:function(){return this.sel.somethingSelected()},setCursor:ni((function(e,t,n){Yi(this,st(this,"number"==typeof e?tt(e,t||0):e),null,n)})),setSelection:ni((function(e,t,n){Yi(this,st(this,e),st(this,t||e),n)})),extendSelection:ni((function(e,t,n){Ki(this,st(this,e),t&&st(this,t),n)})),extendSelections:ni((function(e,t){Xi(this,ut(this,e),t)})),extendSelectionsBy:ni((function(e,t){Xi(this,ut(this,Z(this.sel.ranges,e)),t)})),setSelections:ni((function(e,t,n){if(e.length){for(var r=[],i=0;i<e.length;i++)r[i]=new Ci(st(this,e[i].anchor),st(this,e[i].head));null==t&&(t=Math.min(e.length-1,this.sel.primIndex)),Ji(this,Si(this.cm,r,t),n)}})),addSelection:ni((function(e,t,n){var r=this.sel.ranges.slice(0);r.push(new Ci(st(this,e),st(this,t||e))),Ji(this,Si(this.cm,r,r.length-1),n)})),getSelection:function(e){for(var t,n=this.sel.ranges,r=0;r<n.length;r++){var i=Ke(this,n[r].from(),n[r].to());t=t?t.concat(i):i}return!1===e?t:t.join(e||this.lineSeparator())},getSelections:function(e){for(var t=[],n=this.sel.ranges,r=0;r<n.length;r++){var i=Ke(this,n[r].from(),n[r].to());!1!==e&&(i=i.join(e||this.lineSeparator())),t[r]=i}return t},replaceSelection:function(e,t,n){for(var r=[],i=0;i<this.sel.ranges.length;i++)r[i]=e;this.replaceSelections(r,t,n||"+input")},replaceSelections:ni((function(e,t,n){for(var r=[],i=this.sel,o=0;o<i.ranges.length;o++){var l=i.ranges[o];r[o]={from:l.from(),to:l.to(),text:this.splitLines(e[o]),origin:n}}for(var a=t&&"end"!=t&&function(e,t,n){for(var r=[],i=tt(e.first,0),o=i,l=0;l<t.length;l++){var a=t[l],s=Di(a.from,i,o),u=Di(Ti(a),i,o);if(i=a.to,o=u,"around"==n){var c=e.sel.ranges[l],h=nt(c.head,c.anchor)<0;r[l]=new Ci(h?u:s,h?s:u)}else r[l]=new Ci(s,s)}return new wi(r,e.sel.primIndex)}(this,r,t),s=r.length-1;s>=0;s--)uo(this,r[s]);a?Qi(this,a):this.cm&&Or(this.cm)})),undo:ni((function(){ho(this,"undo")})),redo:ni((function(){ho(this,"redo")})),undoSelection:ni((function(){ho(this,"undo",!0)})),redoSelection:ni((function(){ho(this,"redo",!0)})),setExtending:function(e){this.extend=e},getExtending:function(){return this.extend},historySize:function(){for(var e=this.history,t=0,n=0,r=0;r<e.done.length;r++)e.done[r].ranges||++t;for(var i=0;i<e.undone.length;i++)e.undone[i].ranges||++n;return{undo:t,redo:n}},clearHistory:function(){this.history=new Wi(this.history.maxGeneration)},markClean:function(){this.cleanGeneration=this.changeGeneration(!0)},changeGeneration:function(e){return e&&(this.history.lastOp=this.history.lastSelOp=this.history.lastOrigin=null),this.history.generation},isClean:function(e){return this.history.generation==(e||this.cleanGeneration)},getHistory:function(){return{done:Gi(this.history.done),undone:Gi(this.history.undone)}},setHistory:function(e){var t=this.history=new Wi(this.history.maxGeneration);t.done=Gi(e.done.slice(0),null,!0),t.undone=Gi(e.undone.slice(0),null,!0)},setGutterMarker:ni((function(e,t,n){return yo(this,e,"gutter",(function(e){var r=e.gutterMarkers||(e.gutterMarkers={});return r[t]=n,!n&&ne(r)&&(e.gutterMarkers=null),!0}))})),clearGutter:ni((function(e){var t=this;this.iter((function(n){n.gutterMarkers&&n.gutterMarkers[e]&&yo(t,n,"gutter",(function(){return n.gutterMarkers[e]=null,ne(n.gutterMarkers)&&(n.gutterMarkers=null),!0}))}))})),lineInfo:function(e){var t;if("number"==typeof e){if(!Je(this,e))return null;if(t=e,!(e=Ve(this,e)))return null}else if(null==(t=Ye(e)))return null;return{line:t,handle:e,text:e.text,gutterMarkers:e.gutterMarkers,textClass:e.textClass,bgClass:e.bgClass,wrapClass:e.wrapClass,widgets:e.widgets}},addLineClass:ni((function(e,t,n){return yo(this,e,"gutter"==t?"gutter":"class",(function(e){var r="text"==t?"textClass":"background"==t?"bgClass":"gutter"==t?"gutterClass":"wrapClass";if(e[r]){if(S(n).test(e[r]))return!1;e[r]+=" "+n}else e[r]=n;return!0}))})),removeLineClass:ni((function(e,t,n){return yo(this,e,"gutter"==t?"gutter":"class",(function(e){var r="text"==t?"textClass":"background"==t?"bgClass":"gutter"==t?"gutterClass":"wrapClass",i=e[r];if(!i)return!1;if(null==n)e[r]=null;else{var o=i.match(S(n));if(!o)return!1;var l=o.index+o[0].length;e[r]=i.slice(0,o.index)+(o.index&&l!=i.length?" ":"")+i.slice(l)||null}return!0}))})),addLineWidget:ni((function(e,t,n){return function(e,t,n,r){var i=new wo(e,n,r),o=e.cm;return o&&i.noHScroll&&(o.display.alignWidgets=!0),yo(e,t,"widget",(function(t){var n=t.widgets||(t.widgets=[]);if(null==i.insertAt?n.push(i):n.splice(Math.min(n.length-1,Math.max(0,i.insertAt)),0,i),i.line=t,o&&!Bt(e,t)){var r=qt(t)<e.scrollTop;Ze(t,t.height+wn(i)),r&&Fr(o,i.height),o.curOp.forceUpdate=!0}return!0})),o&&un(o,"lineWidgetAdded",o,i,"number"==typeof t?t:Ye(t)),i}(this,e,t,n)})),removeLineWidget:function(e){e.clear()},markText:function(e,t,n){return To(this,st(this,e),st(this,t),n,n&&n.type||"range")},setBookmark:function(e,t){var n={replacedWith:t&&(null==t.nodeType?t.widget:t),insertLeft:t&&t.insertLeft,clearWhenEmpty:!1,shared:t&&t.shared,handleMouseEvents:t&&t.handleMouseEvents};return To(this,e=st(this,e),e,n,"bookmark")},findMarksAt:function(e){var t=[],n=Ve(this,(e=st(this,e)).line).markedSpans;if(n)for(var r=0;r<n.length;++r){var i=n[r];(null==i.from||i.from<=e.ch)&&(null==i.to||i.to>=e.ch)&&t.push(i.marker.parent||i.marker)}return t},findMarks:function(e,t,n){e=st(this,e),t=st(this,t);var r=[],i=e.line;return this.iter(e.line,t.line+1,(function(o){var l=o.markedSpans;if(l)for(var a=0;a<l.length;a++){var s=l[a];null!=s.to&&i==e.line&&e.ch>=s.to||null==s.from&&i!=e.line||null!=s.from&&i==t.line&&s.from>=t.ch||n&&!n(s.marker)||r.push(s.marker.parent||s.marker)}++i})),r},getAllMarks:function(){var e=[];return this.iter((function(t){var n=t.markedSpans;if(n)for(var r=0;r<n.length;++r)null!=n[r].from&&e.push(n[r].marker)})),e},posFromIndex:function(e){var t,n=this.first,r=this.lineSeparator().length;return this.iter((function(i){var o=i.text.length+r;if(o>e)return t=e,!0;e-=o,++n})),st(this,tt(n,t))},indexFromPos:function(e){var t=(e=st(this,e)).ch;if(e.line<this.first||e.ch<0)return 0;var n=this.lineSeparator().length;return this.iter(this.first,e.line,(function(e){t+=e.text.length+n})),t},copy:function(e){var t=new Fo(Xe(this,this.first,this.first+this.size),this.modeOption,this.first,this.lineSep,this.direction);return t.scrollTop=this.scrollTop,t.scrollLeft=this.scrollLeft,t.sel=this.sel,t.extend=!1,e&&(t.history.undoDepth=this.history.undoDepth,t.setHistory(this.getHistory())),t},linkedDoc:function(e){e||(e={});var t=this.first,n=this.first+this.size;null!=e.from&&e.from>t&&(t=e.from),null!=e.to&&e.to<n&&(n=e.to);var r=new Fo(Xe(this,t,n),e.mode||this.modeOption,t,this.lineSep,this.direction);return e.sharedHist&&(r.history=this.history),(this.linked||(this.linked=[])).push({doc:r,sharedHist:e.sharedHist}),r.linked=[{doc:this,isParent:!0,sharedHist:e.sharedHist}],function(e,t){for(var n=0;n<t.length;n++){var r=t[n],i=r.find(),o=e.clipPos(i.from),l=e.clipPos(i.to);if(nt(o,l)){var a=To(e,o,l,r.primary,r.primary.type);r.markers.push(a),a.parent=r}}}(r,Ao(this)),r},unlinkDoc:function(e){if(e instanceof Ml&&(e=e.doc),this.linked)for(var t=0;t<this.linked.length;++t)if(this.linked[t].doc==e){this.linked.splice(t,1),e.unlinkDoc(this),Do(Ao(this));break}if(e.history==this.history){var n=[e.id];_i(e,(function(e){return n.push(e.id)}),!0),e.history=new Wi(null),e.history.done=Gi(this.history.done,n),e.history.undone=Gi(this.history.undone,n)}},iterLinkedDocs:function(e){_i(this,e)},getMode:function(){return this.mode},getEditor:function(){return this.cm},splitLines:function(e){return this.lineSep?e.split(this.lineSep):Oe(e)},lineSeparator:function(){return this.lineSep||"\n"},setDirection:ni((function(e){var t;"rtl"!=e&&(e="ltr"),e!=this.direction&&(this.direction=e,this.iter((function(e){return e.order=null})),this.cm&&Jr(t=this.cm,(function(){zi(t),dr(t)})))}))}),Fo.prototype.eachLine=Fo.prototype.iter;var Oo=0;function Eo(e){var t=this;if(_o(t),!ge(t,e)&&!Cn(t.display,e)){be(e),l&&(Oo=+new Date);var n=cr(t,e,!0),r=e.dataTransfer.files;if(n&&!t.isReadOnly())if(r&&r.length&&window.FileReader&&window.File)for(var 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tt(r,i<0?n.text.length:0,i<0?"before":"after")}$o.basic={Left:"goCharLeft",Right:"goCharRight",Up:"goLineUp",Down:"goLineDown",End:"goLineEnd",Home:"goLineStartSmart",PageUp:"goPageUp",PageDown:"goPageDown",Delete:"delCharAfter",Backspace:"delCharBefore","Shift-Backspace":"delCharBefore",Tab:"defaultTab","Shift-Tab":"indentAuto",Enter:"newlineAndIndent",Insert:"toggleOverwrite",Esc:"singleSelection"},$o.pcDefault={"Ctrl-A":"selectAll","Ctrl-D":"deleteLine","Ctrl-Z":"undo","Shift-Ctrl-Z":"redo","Ctrl-Y":"redo","Ctrl-Home":"goDocStart","Ctrl-End":"goDocEnd","Ctrl-Up":"goLineUp","Ctrl-Down":"goLineDown","Ctrl-Left":"goGroupLeft","Ctrl-Right":"goGroupRight","Alt-Left":"goLineStart","Alt-Right":"goLineEnd","Ctrl-Backspace":"delGroupBefore","Ctrl-Delete":"delGroupAfter","Ctrl-S":"save","Ctrl-F":"find","Ctrl-G":"findNext","Shift-Ctrl-G":"findPrev","Shift-Ctrl-F":"replace","Shift-Ctrl-R":"replaceAll","Ctrl-[":"indentLess","Ctrl-]":"indentMore","Ctrl-U":"undoSelection","Shift-Ctrl-U":"redoSelection","Alt-U":"redoSelection",fallthrough:"basic"},$o.emacsy={"Ctrl-F":"goCharRight","Ctrl-B":"goCharLeft","Ctrl-P":"goLineUp","Ctrl-N":"goLineDown","Alt-F":"goWordRight","Alt-B":"goWordLeft","Ctrl-A":"goLineStart","Ctrl-E":"goLineEnd","Ctrl-V":"goPageDown","Shift-Ctrl-V":"goPageUp","Ctrl-D":"delCharAfter","Ctrl-H":"delCharBefore","Alt-D":"delWordAfter","Alt-Backspace":"delWordBefore","Ctrl-K":"killLine","Ctrl-T":"transposeChars","Ctrl-O":"openLine"},$o.macDefault={"Cmd-A":"selectAll","Cmd-D":"deleteLine","Cmd-Z":"undo","Shift-Cmd-Z":"redo","Cmd-Y":"redo","Cmd-Home":"goDocStart","Cmd-Up":"goDocStart","Cmd-End":"goDocEnd","Cmd-Down":"goDocEnd","Alt-Left":"goGroupLeft","Alt-Right":"goGroupRight","Cmd-Left":"goLineLeft","Cmd-Right":"goLineRight","Alt-Backspace":"delGroupBefore","Ctrl-Alt-Backspace":"delGroupAfter","Alt-Delete":"delGroupAfter","Cmd-S":"save","Cmd-F":"find","Cmd-G":"findNext","Shift-Cmd-G":"findPrev","Cmd-Alt-F":"replace","Shift-Cmd-Alt-F":"replaceAll","Cmd-[":"indentLess","Cmd-]":"indentMore","Cmd-Backspace":"delWrappedLineLeft","Cmd-Delete":"delWrappedLineRight","Cmd-U":"undoSelection","Shift-Cmd-U":"redoSelection","Ctrl-Up":"goDocStart","Ctrl-Down":"goDocEnd",fallthrough:["basic","emacsy"]},$o.default=x?$o.macDefault:$o.pcDefault;var 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e.redo()},undoSelection:function(e){return e.undoSelection()},redoSelection:function(e){return e.redoSelection()},goDocStart:function(e){return e.extendSelection(tt(e.firstLine(),0))},goDocEnd:function(e){return e.extendSelection(tt(e.lastLine()))},goLineStart:function(e){return e.extendSelectionsBy((function(t){return nl(e,t.head.line)}),{origin:"+move",bias:1})},goLineStartSmart:function(e){return e.extendSelectionsBy((function(t){return rl(e,t.head)}),{origin:"+move",bias:1})},goLineEnd:function(e){return e.extendSelectionsBy((function(t){return function(e,t){var n=Ve(e.doc,t),r=function(e){for(var t;t=zt(e);)e=t.find(1,!0).line;return e}(n);return r!=n&&(t=Ye(r)),el(!0,e,n,t,-1)}(e,t.head.line)}),{origin:"+move",bias:-1})},goLineRight:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5;return e.coordsChar({left:e.display.lineDiv.offsetWidth+100,top:n},"div")}),U)},goLineLeft:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5;return e.coordsChar({left:0,top:n},"div")}),U)},goLineLeftSmart:function(e){return e.extendSelectionsBy((function(t){var n=e.cursorCoords(t.head,"div").top+5,r=e.coordsChar({left:0,top:n},"div");return r.ch<e.getLine(r.line).search(/\S/)?rl(e,t.head):r}),U)},goLineUp:function(e){return e.moveV(-1,"line")},goLineDown:function(e){return e.moveV(1,"line")},goPageUp:function(e){return e.moveV(-1,"page")},goPageDown:function(e){return e.moveV(1,"page")},goCharLeft:function(e){return e.moveH(-1,"char")},goCharRight:function(e){return e.moveH(1,"char")},goColumnLeft:function(e){return e.moveH(-1,"column")},goColumnRight:function(e){return e.moveH(1,"column")},goWordLeft:function(e){return e.moveH(-1,"word")},goGroupRight:function(e){return e.moveH(1,"group")},goGroupLeft:function(e){return e.moveH(-1,"group")},goWordRight:function(e){return e.moveH(1,"word")},delCharBefore:function(e){return e.deleteH(-1,"char")},delCharAfter:function(e){return e.deleteH(1,"char")},delWordBefore:function(e){return e.deleteH(-1,"word")},delWordAfter:function(e){return e.deleteH(1,"word")},delGroupBefore:function(e){return e.deleteH(-1,"group")},delGroupAfter:function(e){return e.deleteH(1,"group")},indentAuto:function(e){return e.indentSelection("smart")},indentMore:function(e){return e.indentSelection("add")},indentLess:function(e){return e.indentSelection("subtract")},insertTab:function(e){return e.replaceSelection("\t")},insertSoftTab:function(e){for(var t=[],n=e.listSelections(),r=e.options.tabSize,i=0;i<n.length;i++){var o=n[i].from(),l=j(e.getLine(o.line),o.ch,r);t.push(K(r-l%r))}e.replaceSelections(t)},defaultTab:function(e){e.somethingSelected()?e.indentSelection("add"):e.execCommand("insertTab")},transposeChars:function(e){return Jr(e,(function(){for(var t=e.listSelections(),n=[],r=0;r<t.length;r++)if(t[r].empty()){var i=t[r].head,o=Ve(e.doc,i.line).text;if(o)if(i.ch==o.length&&(i=new tt(i.line,i.ch-1)),i.ch>0)i=new 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n=e.keyCode,r=e.charCode;if(h&&n==ul)return ul=null,void be(e);if(!h||e.which&&!(e.which<10)||!sl(t,e)){var i=String.fromCharCode(null==r?n:r);"\b"!=i&&(function(e,t,n){return ll(e,"'"+n+"'",t,(function(t){return il(e,t,!0)}))}(t,e,i)||t.display.input.onKeyPress(e))}}}var fl,pl,ml=function(e,t,n){this.time=e,this.pos=t,this.button=n};function gl(e){var t=this,n=t.display;if(!(ge(t,e)||n.activeTouch&&n.input.supportsTouch()))if(n.input.ensurePolled(),n.shift=e.shiftKey,Cn(n,e))s||(n.scroller.draggable=!1,setTimeout((function(){return n.scroller.draggable=!0}),100));else if(!yl(t,e)){var r=cr(t,e),i=Le(e),o=r?function(e,t){var n=+new Date;return pl&&pl.compare(n,e,t)?(fl=pl=null,"triple"):fl&&fl.compare(n,e,t)?(pl=new ml(n,e,t),fl=null,"double"):(fl=new ml(n,e,t),pl=null,"single")}(r,i):"single";window.focus(),1==i&&t.state.selectingText&&t.state.selectingText(e),r&&function(e,t,n,r,i){var 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i=e.display,o=!1,u=ei(e,(function(t){s&&(i.scroller.draggable=!1),e.state.draggingText=!1,pe(i.wrapper.ownerDocument,"mouseup",u),pe(i.wrapper.ownerDocument,"mousemove",c),pe(i.scroller,"dragstart",h),pe(i.scroller,"drop",u),o||(be(t),r.addNew||Ki(e.doc,n,null,null,r.extend),s||l&&9==a?setTimeout((function(){i.wrapper.ownerDocument.body.focus(),i.input.focus()}),20):i.input.focus())})),c=function(e){o=o||Math.abs(t.clientX-e.clientX)+Math.abs(t.clientY-e.clientY)>=10},h=function(){return o=!0};s&&(i.scroller.draggable=!0),e.state.draggingText=u,u.copy=!r.moveOnDrag,i.scroller.dragDrop&&i.scroller.dragDrop(),de(i.wrapper.ownerDocument,"mouseup",u),de(i.wrapper.ownerDocument,"mousemove",c),de(i.scroller,"dragstart",h),de(i.scroller,"drop",u),Sr(e),setTimeout((function(){return i.input.focus()}),20)}(e,r,t,o):function(e,t,n,r){var i=e.display,o=e.doc;be(t);var l,a,s=o.sel,u=s.ranges;if(r.addNew&&!r.extend?(a=o.sel.contains(n),l=a>-1?u[a]:new 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o=se(i,n.ch,n.sticky),l=i[o];if("ltr"==e.doc.direction&&l.level%2==0&&(r>0?l.to>n.ch:l.from<n.ch))return Jo(t,n,r);var a,s=function(e,n){return Qo(t,e instanceof tt?e.ch:e,n)},u=function(n){return e.options.lineWrapping?(a=a||En(e,t),Jn(e,t,a,n)):{begin:0,end:t.text.length}},c=u("before"==n.sticky?s(n,-1):n.ch);if("rtl"==e.doc.direction||1==l.level){var h=1==l.level==r<0,d=s(n,h?1:-1);if(null!=d&&(h?d<=l.to&&d<=c.end:d>=l.from&&d>=c.begin)){var f=h?"before":"after";return new tt(n.line,d,f)}}var p=function(e,t,r){for(var o=function(e,t){return t?new tt(n.line,s(e,1),"before"):new tt(n.line,e,"after")};e>=0&&e<i.length;e+=t){var l=i[e],a=t>0==(1!=l.level),u=a?r.begin:s(r.end,-1);if(l.from<=u&&u<l.to)return o(u,a);if(u=a?l.from:s(l.to,-1),r.begin<=u&&u<r.end)return o(u,a)}},m=p(o+r,r,c);if(m)return m;var g=r>0?c.end:s(c.begin,-1);return null==g||r>0&&g==t.text.length||!(m=p(r>0?0:i.length-1,r,u(g)))?null:m}(e.cm,a,t,n):Jo(a,t,n))){if(r||(l=t.line+n)<e.first||l>=e.first+e.size||(t=new tt(l,t.ch,t.sticky),!(a=Ve(e,l))))return!1;t=el(i,e.cm,a,t.line,n)}else t=o;return!0}if("char"==r)s();else if("column"==r)s(!0);else if("word"==r||"group"==r)for(var u=null,c="group"==r,h=e.cm&&e.cm.getHelper(t,"wordChars"),d=!0;!(n<0)||s(!d);d=!1){var f=a.text.charAt(t.ch)||"\n",p=te(f,h)?"w":c&&"\n"==f?"n":!c||/\s/.test(f)?null:"p";if(!c||d||p||(p="s"),u&&u!=p){n<0&&(n=1,s(),t.sticky="after");break}if(p&&(u=p),n>0&&!s(!d))break}var m=oo(e,t,o,l,!0);return rt(o,m)&&(m.hitSide=!0),m}function Hl(e,t,n,r){var i,o,l=e.doc,a=t.left;if("page"==r){var s=Math.min(e.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight),u=Math.max(s-.5*ir(e.display),3);i=(n>0?t.bottom:t.top)+n*u}else"line"==r&&(i=n>0?t.bottom+3:t.top-3);for(;(o=Yn(e,a,i)).outside;){if(n<0?i<=0:i>=l.height){o.hitSide=!0;break}i+=5*n}return o}var Il=function(e){this.cm=e,this.lastAnchorNode=this.lastAnchorOffset=this.lastFocusNode=this.lastFocusOffset=null,this.polling=new H,this.composing=null,this.gracePeriod=!1,this.readDOMTimeout=null};function Rl(e,t){var n=On(e,t.line);if(!n||n.hidden)return null;var r=Ve(e.doc,t.line),i=Nn(n,r,t.line),o=ce(r,e.doc.direction),l="left";o&&(l=se(o,t.ch)%2?"right":"left");var a=Wn(i.map,t.ch,l);return a.offset="right"==a.collapse?a.end:a.start,a}function Bl(e,t){return t&&(e.bad=!0),e}function $l(e,t,n){var r;if(t==e.display.lineDiv){if(!(r=e.display.lineDiv.childNodes[n]))return Bl(e.clipPos(tt(e.display.viewTo-1)),!0);t=null,n=0}else for(r=t;;r=r.parentNode){if(!r||r==e.display.lineDiv)return null;if(r.parentNode&&r.parentNode==e.display.lineDiv)break}for(var i=0;i<e.display.view.length;i++){var o=e.display.view[i];if(o.node==r)return ql(o,t,n)}}function ql(e,t,n){var r=e.text.firstChild,i=!1;if(!t||!F(r,t))return Bl(tt(Ye(e.line),0),!0);if(t==r&&(i=!0,t=r.childNodes[n],n=0,!t)){var o=e.rest?X(e.rest):e.line;return Bl(tt(Ye(o),o.text.length),i)}var l=3==t.nodeType?t:null,a=t;for(l||1!=t.childNodes.length||3!=t.firstChild.nodeType||(l=t.firstChild,n&&(n=l.nodeValue.length));a.parentNode!=r;)a=a.parentNode;var s=e.measure,u=s.maps;function c(t,n,r){for(var i=-1;i<(u?u.length:0);i++)for(var o=i<0?s.map:u[i],l=0;l<o.length;l+=3){var a=o[l+2];if(a==t||a==n){var c=Ye(i<0?e.line:e.rest[i]),h=o[l]+r;return(r<0||a!=t)&&(h=o[l+(r?1:0)]),tt(c,h)}}}var h=c(l,a,n);if(h)return Bl(h,i);for(var d=a.nextSibling,f=l?l.nodeValue.length-n:0;d;d=d.nextSibling){if(h=c(d,d.firstChild,0))return Bl(tt(h.line,h.ch-f),i);f+=d.textContent.length}for(var p=a.previousSibling,m=n;p;p=p.previousSibling){if(h=c(p,p.firstChild,-1))return Bl(tt(h.line,h.ch+m),i);m+=p.textContent.length}}Il.prototype.init=function(e){var t=this,n=this,r=n.cm,i=n.div=e.lineDiv;function o(e){if(!ge(r,e)){if(r.somethingSelected())Fl({lineWise:!1,text:r.getSelections()}),"cut"==e.type&&r.replaceSelection("",null,"cut");else{if(!r.options.lineWiseCopyCut)return;var t=Pl(r);Fl({lineWise:!0,text:t.text}),"cut"==e.type&&r.operation((function(){r.setSelections(t.ranges,0,$),r.replaceSelection("",null,"cut")}))}if(e.clipboardData){e.clipboardData.clearData();var o=Nl.text.join("\n");if(e.clipboardData.setData("Text",o),e.clipboardData.getData("Text")==o)return void e.preventDefault()}var l=Wl(),a=l.firstChild;r.display.lineSpace.insertBefore(l,r.display.lineSpace.firstChild),a.value=Nl.text.join("\n");var s=document.activeElement;P(a),setTimeout((function(){r.display.lineSpace.removeChild(l),s.focus(),s==i&&n.showPrimarySelection()}),50)}}zl(i,r.options.spellcheck,r.options.autocorrect,r.options.autocapitalize),de(i,"paste",(function(e){ge(r,e)||El(e,r)||a<=11&&setTimeout(ei(r,(function(){return t.updateFromDOM()})),20)})),de(i,"compositionstart",(function(e){t.composing={data:e.data,done:!1}})),de(i,"compositionupdate",(function(e){t.composing||(t.composing={data:e.data,done:!1})})),de(i,"compositionend",(function(e){t.composing&&(e.data!=t.composing.data&&t.readFromDOMSoon(),t.composing.done=!0)})),de(i,"touchstart",(function(){return n.forceCompositionEnd()})),de(i,"input",(function(){t.composing||t.readFromDOMSoon()})),de(i,"copy",o),de(i,"cut",o)},Il.prototype.prepareSelection=function(){var e=xr(this.cm,!1);return e.focus=this.cm.state.focused,e},Il.prototype.showSelection=function(e,t){e&&this.cm.display.view.length&&((e.focus||t)&&this.showPrimarySelection(),this.showMultipleSelections(e))},Il.prototype.getSelection=function(){return this.cm.display.wrapper.ownerDocument.getSelection()},Il.prototype.showPrimarySelection=function(){var e=this.getSelection(),t=this.cm,r=t.doc.sel.primary(),i=r.from(),o=r.to();if(t.display.viewTo==t.display.viewFrom||i.line>=t.display.viewTo||o.line<t.display.viewFrom)e.removeAllRanges();else{var l=$l(t,e.anchorNode,e.anchorOffset),a=$l(t,e.focusNode,e.focusOffset);if(!l||l.bad||!a||a.bad||0!=nt(lt(l,a),i)||0!=nt(ot(l,a),o)){var s=t.display.view,u=i.line>=t.display.viewFrom&&Rl(t,i)||{node:s[0].measure.map[2],offset:0},c=o.line<t.display.viewTo&&Rl(t,o);if(!c){var h=s[s.length-1].measure,d=h.maps?h.maps[h.maps.length-1]:h.map;c={node:d[d.length-1],offset:d[d.length-2]-d[d.length-3]}}if(u&&c){var f,p=e.rangeCount&&e.getRangeAt(0);try{f=L(u.node,u.offset,c.offset,c.node)}catch(e){}f&&(!n&&t.state.focused?(e.collapse(u.node,u.offset),f.collapsed||(e.removeAllRanges(),e.addRange(f))):(e.removeAllRanges(),e.addRange(f)),p&&null==e.anchorNode?e.addRange(p):n&&this.startGracePeriod()),this.rememberSelection()}else e.removeAllRanges()}}},Il.prototype.startGracePeriod=function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout((function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation((function(){return e.cm.curOp.selectionChanged=!0}))}),20)},Il.prototype.showMultipleSelections=function(e){A(this.cm.display.cursorDiv,e.cursors),A(this.cm.display.selectionDiv,e.selection)},Il.prototype.rememberSelection=function(){var e=this.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},Il.prototype.selectionInEditor=function(){var e=this.getSelection();if(!e.rangeCount)return!1;var t=e.getRangeAt(0).commonAncestorContainer;return F(this.div,t)},Il.prototype.focus=function(){"nocursor"!=this.cm.options.readOnly&&(this.selectionInEditor()||this.showSelection(this.prepareSelection(),!0),this.div.focus())},Il.prototype.blur=function(){this.div.blur()},Il.prototype.getField=function(){return this.div},Il.prototype.supportsTouch=function(){return!0},Il.prototype.receivedFocus=function(){var e=this;this.selectionInEditor()?this.pollSelection():Jr(this.cm,(function(){return e.cm.curOp.selectionChanged=!0})),this.polling.set(this.cm.options.pollInterval,(function t(){e.cm.state.focused&&(e.pollSelection(),e.polling.set(e.cm.options.pollInterval,t))}))},Il.prototype.selectionChanged=function(){var e=this.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},Il.prototype.pollSelection=function(){if(null==this.readDOMTimeout&&!this.gracePeriod&&this.selectionChanged()){var e=this.getSelection(),t=this.cm;if(g&&c&&this.cm.display.gutterSpecs.length&&function(e){for(var t=e;t;t=t.parentNode)if(/CodeMirror-gutter-wrapper/.test(t.className))return!0;return!1}(e.anchorNode))return this.cm.triggerOnKeyDown({type:"keydown",keyCode:8,preventDefault:Math.abs}),this.blur(),void this.focus();if(!this.composing){this.rememberSelection();var n=$l(t,e.anchorNode,e.anchorOffset),r=$l(t,e.focusNode,e.focusOffset);n&&r&&Jr(t,(function(){Ji(t.doc,Li(n,r),$),(n.bad||r.bad)&&(t.curOp.selectionChanged=!0)}))}}},Il.prototype.pollContent=function(){null!=this.readDOMTimeout&&(clearTimeout(this.readDOMTimeout),this.readDOMTimeout=null);var e,t,n,r=this.cm,i=r.display,o=r.doc.sel.primary(),l=o.from(),a=o.to();if(0==l.ch&&l.line>r.firstLine()&&(l=tt(l.line-1,Ve(r.doc,l.line-1).length)),a.ch==Ve(r.doc,a.line).text.length&&a.line<r.lastLine()&&(a=tt(a.line+1,0)),l.line<i.viewFrom||a.line>i.viewTo-1)return!1;l.line==i.viewFrom||0==(e=hr(r,l.line))?(t=Ye(i.view[0].line),n=i.view[0].node):(t=Ye(i.view[e].line),n=i.view[e-1].node.nextSibling);var s,u,c=hr(r,a.line);if(c==i.view.length-1?(s=i.viewTo-1,u=i.lineDiv.lastChild):(s=Ye(i.view[c+1].line)-1,u=i.view[c+1].node.previousSibling),!n)return!1;for(var h=r.doc.splitLines(function(e,t,n,r,i){var o="",l=!1,a=e.doc.lineSeparator(),s=!1;function u(){l&&(o+=a,s&&(o+=a),l=s=!1)}function c(e){e&&(u(),o+=e)}function h(t){if(1==t.nodeType){var n=t.getAttribute("cm-text");if(n)return void c(n);var o,d=t.getAttribute("cm-marker");if(d){var f=e.findMarks(tt(r,0),tt(i+1,0),(g=+d,function(e){return e.id==g}));return void(f.length&&(o=f[0].find(0))&&c(Ke(e.doc,o.from,o.to).join(a)))}if("false"==t.getAttribute("contenteditable"))return;var p=/^(pre|div|p|li|table|br)$/i.test(t.nodeName);if(!/^br$/i.test(t.nodeName)&&0==t.textContent.length)return;p&&u();for(var m=0;m<t.childNodes.length;m++)h(t.childNodes[m]);/^(pre|p)$/i.test(t.nodeName)&&(s=!0),p&&(l=!0)}else 3==t.nodeType&&c(t.nodeValue.replace(/\u200b/g,"").replace(/\u00a0/g," "));var g}for(;h(t),t!=n;)t=t.nextSibling,s=!1;return o}(r,n,u,t,s)),d=Ke(r.doc,tt(t,0),tt(s,Ve(r.doc,s).text.length));h.length>1&&d.length>1;)if(X(h)==X(d))h.pop(),d.pop(),s--;else{if(h[0]!=d[0])break;h.shift(),d.shift(),t++}for(var f=0,p=0,m=h[0],g=d[0],v=Math.min(m.length,g.length);f<v&&m.charCodeAt(f)==g.charCodeAt(f);)++f;for(var x=X(h),y=X(d),b=Math.min(x.length-(1==h.length?f:0),y.length-(1==d.length?f:0));p<b&&x.charCodeAt(x.length-p-1)==y.charCodeAt(y.length-p-1);)++p;if(1==h.length&&1==d.length&&t==l.line)for(;f&&f>l.ch&&x.charCodeAt(x.length-p-1)==y.charCodeAt(y.length-p-1);)f--,p++;h[h.length-1]=x.slice(0,x.length-p).replace(/^\u200b+/,""),h[0]=h[0].slice(f).replace(/\u200b+$/,"");var k=tt(t,f),w=tt(s,d.length?X(d).length-p:0);return h.length>1||h[0]||nt(k,w)?(mo(r.doc,h,k,w,"+input"),!0):void 0},Il.prototype.ensurePolled=function(){this.forceCompositionEnd()},Il.prototype.reset=function(){this.forceCompositionEnd()},Il.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},Il.prototype.readFromDOMSoon=function(){var e=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout((function(){if(e.readDOMTimeout=null,e.composing){if(!e.composing.done)return;e.composing=null}e.updateFromDOM()}),80))},Il.prototype.updateFromDOM=function(){var e=this;!this.cm.isReadOnly()&&this.pollContent()||Jr(this.cm,(function(){return dr(e.cm)}))},Il.prototype.setUneditable=function(e){e.contentEditable="false"},Il.prototype.onKeyPress=function(e){0==e.charCode||this.composing||(e.preventDefault(),this.cm.isReadOnly()||ei(this.cm,Ol)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0))},Il.prototype.readOnlyChanged=function(e){this.div.contentEditable=String("nocursor"!=e)},Il.prototype.onContextMenu=function(){},Il.prototype.resetPosition=function(){},Il.prototype.needsContentAttribute=!0;var Ul=function(e){this.cm=e,this.prevInput="",this.pollingFast=!1,this.polling=new H,this.hasSelection=!1,this.composing=null};Ul.prototype.init=function(e){var t=this,n=this,r=this.cm;this.createField(e);var i=this.textarea;function o(e){if(!ge(r,e)){if(r.somethingSelected())Fl({lineWise:!1,text:r.getSelections()});else{if(!r.options.lineWiseCopyCut)return;var t=Pl(r);Fl({lineWise:!0,text:t.text}),"cut"==e.type?r.setSelections(t.ranges,null,$):(n.prevInput="",i.value=t.text.join("\n"),P(i))}"cut"==e.type&&(r.state.cutIncoming=+new Date)}}e.wrapper.insertBefore(this.wrapper,e.wrapper.firstChild),m&&(i.style.width="0px"),de(i,"input",(function(){l&&a>=9&&t.hasSelection&&(t.hasSelection=null),n.poll()})),de(i,"paste",(function(e){ge(r,e)||El(e,r)||(r.state.pasteIncoming=+new Date,n.fastPoll())})),de(i,"cut",o),de(i,"copy",o),de(e.scroller,"paste",(function(t){if(!Cn(e,t)&&!ge(r,t)){if(!i.dispatchEvent)return r.state.pasteIncoming=+new Date,void n.focus();var o=new Event("paste");o.clipboardData=t.clipboardData,i.dispatchEvent(o)}})),de(e.lineSpace,"selectstart",(function(t){Cn(e,t)||be(t)})),de(i,"compositionstart",(function(){var e=r.getCursor("from");n.composing&&n.composing.range.clear(),n.composing={start:e,range:r.markText(e,r.getCursor("to"),{className:"CodeMirror-composing"})}})),de(i,"compositionend",(function(){n.composing&&(n.poll(),n.composing.range.clear(),n.composing=null)}))},Ul.prototype.createField=function(e){this.wrapper=Wl(),this.textarea=this.wrapper.firstChild},Ul.prototype.prepareSelection=function(){var e=this.cm,t=e.display,n=e.doc,r=xr(e);if(e.options.moveInputWithCursor){var i=Kn(e,n.sel.primary().head,"div"),o=t.wrapper.getBoundingClientRect(),l=t.lineDiv.getBoundingClientRect();r.teTop=Math.max(0,Math.min(t.wrapper.clientHeight-10,i.top+l.top-o.top)),r.teLeft=Math.max(0,Math.min(t.wrapper.clientWidth-10,i.left+l.left-o.left))}return r},Ul.prototype.showSelection=function(e){var t=this.cm.display;A(t.cursorDiv,e.cursors),A(t.selectionDiv,e.selection),null!=e.teTop&&(this.wrapper.style.top=e.teTop+"px",this.wrapper.style.left=e.teLeft+"px")},Ul.prototype.reset=function(e){if(!this.contextMenuPending&&!this.composing){var t=this.cm;if(t.somethingSelected()){this.prevInput="";var n=t.getSelection();this.textarea.value=n,t.state.focused&&P(this.textarea),l&&a>=9&&(this.hasSelection=n)}else e||(this.prevInput=this.textarea.value="",l&&a>=9&&(this.hasSelection=null))}},Ul.prototype.getField=function(){return this.textarea},Ul.prototype.supportsTouch=function(){return!1},Ul.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!v||O()!=this.textarea))try{this.textarea.focus()}catch(e){}},Ul.prototype.blur=function(){this.textarea.blur()},Ul.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},Ul.prototype.receivedFocus=function(){this.slowPoll()},Ul.prototype.slowPoll=function(){var e=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,(function(){e.poll(),e.cm.state.focused&&e.slowPoll()}))},Ul.prototype.fastPoll=function(){var e=!1,t=this;t.pollingFast=!0,t.polling.set(20,(function n(){t.poll()||e?(t.pollingFast=!1,t.slowPoll()):(e=!0,t.polling.set(60,n))}))},Ul.prototype.poll=function(){var e=this,t=this.cm,n=this.textarea,r=this.prevInput;if(this.contextMenuPending||!t.state.focused||Ee(n)&&!r&&!this.composing||t.isReadOnly()||t.options.disableInput||t.state.keySeq)return!1;var i=n.value;if(i==r&&!t.somethingSelected())return!1;if(l&&a>=9&&this.hasSelection===i||x&&/[\uf700-\uf7ff]/.test(i))return t.display.input.reset(),!1;if(t.doc.sel==t.display.selForContextMenu){var o=i.charCodeAt(0);if(8203!=o||r||(r="​"),8666==o)return this.reset(),this.cm.execCommand("undo")}for(var s=0,u=Math.min(r.length,i.length);s<u&&r.charCodeAt(s)==i.charCodeAt(s);)++s;return Jr(t,(function(){Ol(t,i.slice(s),r.length-s,null,e.composing?"*compose":null),i.length>1e3||i.indexOf("\n")>-1?n.value=e.prevInput="":e.prevInput=i,e.composing&&(e.composing.range.clear(),e.composing.range=t.markText(e.composing.start,t.getCursor("to"),{className:"CodeMirror-composing"}))})),!0},Ul.prototype.ensurePolled=function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},Ul.prototype.onKeyPress=function(){l&&a>=9&&(this.hasSelection=null),this.fastPoll()},Ul.prototype.onContextMenu=function(e){var t=this,n=t.cm,r=n.display,i=t.textarea;t.contextMenuPending&&t.contextMenuPending();var o=cr(n,e),u=r.scroller.scrollTop;if(o&&!h){n.options.resetSelectionOnContextMenu&&-1==n.doc.sel.contains(o)&&ei(n,Ji)(n.doc,Li(o),$);var c,d=i.style.cssText,f=t.wrapper.style.cssText,p=t.wrapper.offsetParent.getBoundingClientRect();if(t.wrapper.style.cssText="position: static",i.style.cssText="position: absolute; width: 30px; height: 30px;\n      top: "+(e.clientY-p.top-5)+"px; left: "+(e.clientX-p.left-5)+"px;\n      z-index: 1000; background: "+(l?"rgba(255, 255, 255, .05)":"transparent")+";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",s&&(c=window.scrollY),r.input.focus(),s&&window.scrollTo(null,c),r.input.reset(),n.somethingSelected()||(i.value=t.prevInput=" "),t.contextMenuPending=v,r.selForContextMenu=n.doc.sel,clearTimeout(r.detectingSelectAll),l&&a>=9&&g(),C){Ce(e);var m=function(){pe(window,"mouseup",m),setTimeout(v,20)};de(window,"mouseup",m)}else setTimeout(v,50)}function g(){if(null!=i.selectionStart){var e=n.somethingSelected(),o="​"+(e?i.value:"");i.value="⇚",i.value=o,t.prevInput=e?"":"​",i.selectionStart=1,i.selectionEnd=o.length,r.selForContextMenu=n.doc.sel}}function v(){if(t.contextMenuPending==v&&(t.contextMenuPending=!1,t.wrapper.style.cssText=f,i.style.cssText=d,l&&a<9&&r.scrollbars.setScrollTop(r.scroller.scrollTop=u),null!=i.selectionStart)){(!l||l&&a<9)&&g();var e=0,o=function(){r.selForContextMenu==n.doc.sel&&0==i.selectionStart&&i.selectionEnd>0&&"​"==t.prevInput?ei(n,ao)(n):e++<10?r.detectingSelectAll=setTimeout(o,500):(r.selForContextMenu=null,r.input.reset())};r.detectingSelectAll=setTimeout(o,200)}}},Ul.prototype.readOnlyChanged=function(e){e||this.reset(),this.textarea.disabled="nocursor"==e},Ul.prototype.setUneditable=function(){},Ul.prototype.needsContentAttribute=!1,function(e){var t=e.optionHandlers;function n(n,r,i,o){e.defaults[n]=r,i&&(t[n]=o?function(e,t,n){n!=wl&&i(e,t,n)}:i)}e.defineOption=n,e.Init=wl,n("value","",(function(e,t){return e.setValue(t)}),!0),n("mode",null,(function(e,t){e.doc.modeOption=t,Ni(e)}),!0),n("indentUnit",2,Ni,!0),n("indentWithTabs",!1),n("smartIndent",!0),n("tabSize",4,(function(e){Fi(e),Rn(e),dr(e)}),!0),n("lineSeparator",null,(function(e,t){if(e.doc.lineSep=t,t){var n=[],r=e.doc.first;e.doc.iter((function(e){for(var i=0;;){var 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x=e.cm.options.tabSize,y=x-e.col%x;(v=u.appendChild(A("span",V(y),"cm-tab"))).setAttribute("role","presentation"),v.setAttribute("cm-text","\t"),e.col+=y}else"\r"==p[0]||"\n"==p[0]?((v=u.appendChild(A("span","\r"==p[0]?"␍":"␤","cm-invalidchar"))).setAttribute("cm-text",p[0]),e.col+=1):((v=e.cm.options.specialCharPlaceholder(p[0])).setAttribute("cm-text",p[0]),l&&s<9?u.appendChild(A("span",[v])):u.appendChild(v),e.col+=1);e.map.push(e.pos,e.pos+1,v),e.pos++}}else e.col+=t.length,u=document.createTextNode(c),e.map.push(e.pos,e.pos+t.length,u),l&&s<9&&(d=!0),e.pos+=t.length;if(e.trailingSpace=32==c.charCodeAt(t.length-1),n||r||i||d||o){var b=n||"";r&&(b+=r),i&&(b+=i);var k=A("span",[u],b,o);if(a)for(var w in a)a.hasOwnProperty(w)&&"style"!=w&&"class"!=w&&k.setAttribute(w,a[w]);return e.content.appendChild(k)}e.content.appendChild(u)}}function en(e,t){return function(n,r,i,o,l,s,a){i=i?i+" cm-force-border":"cm-force-border";for(var u=n.pos,c=u+r.length;;){for(var h=void 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n&&n.line==t.line?(e.display.externalMeasured=null,t.measure=n.measure,n.built):Yt(e,t)}function fn(e,t){var n=t.text.className,r=dn(e,t);t.text==t.node&&(t.node=r.pre),t.text.parentNode.replaceChild(r.pre,t.text),t.text=r.pre,r.bgClass!=t.bgClass||r.textClass!=t.textClass?(t.bgClass=r.bgClass,t.textClass=r.textClass,pn(e,t)):n&&(t.text.className=n)}function pn(e,t){!function(e,t){var n=t.bgClass?t.bgClass+" "+(t.line.bgClass||""):t.line.bgClass;if(n&&(n+=" CodeMirror-linebackground"),t.background)n?t.background.className=n:(t.background.parentNode.removeChild(t.background),t.background=null);else if(n){var r=hn(t);t.background=r.insertBefore(A("div",null,n),r.firstChild),e.display.input.setUneditable(t.background)}}(e,t),t.line.wrapClass?hn(t).className=t.line.wrapClass:t.node!=t.text&&(t.node.className="");var n=t.textClass?t.textClass+" "+(t.line.textClass||""):t.line.textClass;t.text.className=n||""}function mn(e,t,n,r){if(t.gutter&&(t.node.removeChild(t.gutter),t.gutter=null),t.gutterBackground&&(t.node.removeChild(t.gutterBackground),t.gutterBackground=null),t.line.gutterClass){var i=hn(t);t.gutterBackground=A("div",null,"CodeMirror-gutter-background "+t.line.gutterClass,"left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px; width: "+r.gutterTotalWidth+"px"),e.display.input.setUneditable(t.gutterBackground),i.insertBefore(t.gutterBackground,t.text)}var o=t.line.gutterMarkers;if(e.options.lineNumbers||o){var l=hn(t),s=t.gutter=A("div",null,"CodeMirror-gutter-wrapper","left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px");if(e.display.input.setUneditable(s),l.insertBefore(s,t.text),t.line.gutterClass&&(s.className+=" "+t.line.gutterClass),!e.options.lineNumbers||o&&o["CodeMirror-linenumbers"]||(t.lineNumber=s.appendChild(A("div",Je(e.options,n),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+r.gutterLeft["CodeMirror-linenumbers"]+"px; width: 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n=Ce(t);n!=e.wrapper;n=n.parentNode)if(!n||1==n.nodeType&&"true"==n.getAttribute("cm-ignore-events")||n.parentNode==e.sizer&&n!=e.mover)return!0}function Cn(e){return e.lineSpace.offsetTop}function Sn(e){return e.mover.offsetHeight-e.lineSpace.offsetHeight}function Ln(e){if(e.cachedPaddingH)return e.cachedPaddingH;var t=D(e.measure,A("pre","x","CodeMirror-line-like")),n=window.getComputedStyle?window.getComputedStyle(t):t.currentStyle,r={left:parseInt(n.paddingLeft),right:parseInt(n.paddingRight)};return isNaN(r.left)||isNaN(r.right)||(e.cachedPaddingH=r),r}function Tn(e){return 30-e.display.nativeBarWidth}function Mn(e){return e.display.scroller.clientWidth-Tn(e)-e.display.barWidth}function Dn(e){return e.display.scroller.clientHeight-Tn(e)-e.display.barHeight}function An(e,t,n){if(e.line==t)return{map:e.measure.map,cache:e.measure.cache};for(var r=0;r<e.rest.length;r++)if(e.rest[r]==t)return{map:e.measure.maps[r],cache:e.measure.caches[r]};for(var i=0;i<e.rest.length;i++)if(Ze(e.rest[i])>n)return{map:e.measure.maps[i],cache:e.measure.caches[i],before:!0}}function Fn(e,t,n,r){return _n(e,On(e,t),n,r)}function Nn(e,t){if(t>=e.display.viewFrom&&t<e.display.viewTo)return e.display.view[cr(e,t)];var n=e.display.externalMeasured;return n&&t>=n.lineN&&t<n.lineN+n.size?n:void 0}function On(e,t){var n=Ze(t),r=Nn(e,n);r&&!r.text?r=null:r&&r.changes&&(cn(e,r,n,or(e)),e.curOp.forceUpdate=!0),r||(r=function(e,t){var n=Ze(t=Ht(t)),r=e.display.externalMeasured=new rn(e.doc,t,n);r.lineN=n;var i=r.built=Yt(e,r);return r.text=i.pre,D(e.display.lineMeasure,i.pre),r}(e,t));var i=An(r,t,n);return{line:t,view:r,rect:null,map:i.map,cache:i.cache,before:i.before,hasHeights:!1}}function _n(e,t,n,r,i){t.before&&(n=-1);var o,a=n+(r||"");return t.cache.hasOwnProperty(a)?o=t.cache[a]:(t.rect||(t.rect=t.view.text.getBoundingClientRect()),t.hasHeights||(function(e,t,n){var r=e.options.lineWrapping,i=r&&Mn(e);if(!t.measure.heights||r&&t.measure.width!=i){var o=t.measure.heights=[];if(r){t.measure.width=i;for(var l=t.text.firstChild.getClientRects(),s=0;s<l.length-1;s++){var a=l[s],u=l[s+1];Math.abs(a.bottom-u.bottom)>2&&o.push((a.bottom+u.top)/2-n.top)}}o.push(n.bottom-n.top)}}(e,t.view,t.rect),t.hasHeights=!0),(o=function(e,t,n,r){var i,o=zn(t.map,n,r),a=o.node,u=o.start,c=o.end,h=o.collapse;if(3==a.nodeType){for(var d=0;d<4;d++){for(;u&&re(t.line.text.charAt(o.coverStart+u));)--u;for(;o.coverStart+c<o.coverEnd&&re(t.line.text.charAt(o.coverStart+c));)++c;if((i=l&&s<9&&0==u&&c==o.coverEnd-o.coverStart?a.parentNode.getBoundingClientRect():Pn(L(a,u,c).getClientRects(),r)).left||i.right||0==u)break;c=u,u-=1,h="right"}l&&s<11&&(i=function(e,t){if(!window.screen||null==screen.logicalXDPI||screen.logicalXDPI==screen.deviceXDPI||!function(e){if(null!=Ee)return Ee;var t=D(e,A("span","x")),n=t.getBoundingClientRect(),r=L(t,0,1).getBoundingClientRect();return Ee=Math.abs(n.left-r.left)>1}(e))return t;var n=screen.logicalXDPI/screen.deviceXDPI,r=screen.logicalYDPI/screen.deviceYDPI;return{left:t.left*n,right:t.right*n,top:t.top*r,bottom:t.bottom*r}}(e.display.measure,i))}else{var f;u>0&&(h=r="right"),i=e.options.lineWrapping&&(f=a.getClientRects()).length>1?f["right"==r?f.length-1:0]:a.getBoundingClientRect()}if(l&&s<9&&!u&&(!i||!i.left&&!i.right)){var p=a.parentNode.getClientRects()[0];i=p?{left:p.left,right:p.left+ir(e.display),top:p.top,bottom:p.bottom}:Wn}for(var m=i.top-t.rect.top,g=i.bottom-t.rect.top,v=(m+g)/2,x=t.view.measure.heights,y=0;y<x.length-1&&!(v<x[y]);y++);var b=y?x[y-1]:0,k=x[y],w={left:("right"==h?i.right:i.left)-t.rect.left,right:("left"==h?i.left:i.right)-t.rect.left,top:b,bottom:k};return i.left||i.right||(w.bogus=!0),e.options.singleCursorHeightPerLine||(w.rtop=m,w.rbottom=g),w}(e,t,n,r)).bogus||(t.cache[a]=o)),{left:o.left,right:o.right,top:i?o.rtop:o.top,bottom:i?o.rbottom:o.bottom}}var En,Wn={left:0,right:0,top:0,bottom:0};function zn(e,t,n){for(var r,i,o,l,s,a,u=0;u<e.length;u+=3)if(s=e[u],a=e[u+1],t<s?(i=0,o=1,l="left"):t<a?o=1+(i=t-s):(u==e.length-3||t==a&&e[u+3]>t)&&(i=(o=a-s)-1,t>=a&&(l="right")),null!=i){if(r=e[u+2],s==a&&n==(r.insertLeft?"left":"right")&&(l=n),"left"==n&&0==i)for(;u&&e[u-2]==e[u-3]&&e[u-1].insertLeft;)r=e[2+(u-=3)],l="left";if("right"==n&&i==a-s)for(;u<e.length-3&&e[u+3]==e[u+4]&&!e[u+5].insertLeft;)r=e[(u+=3)+2],l="right";break}return{node:r,start:i,end:o,collapse:l,coverStart:s,coverEnd:a}}function Pn(e,t){var n=Wn;if("left"==t)for(var r=0;r<e.length&&(n=e[r]).left==n.right;r++);else for(var i=e.length-1;i>=0&&(n=e[i]).left==n.right;i--);return n}function Hn(e){if(e.measure&&(e.measure.cache={},e.measure.heights=null,e.rest))for(var t=0;t<e.rest.length;t++)e.measure.caches[t]={}}function In(e){e.display.externalMeasure=null,M(e.display.lineMeasure);for(var t=0;t<e.display.view.length;t++)Hn(e.display.view[t])}function Rn(e){In(e),e.display.cachedCharWidth=e.display.cachedTextHeight=e.display.cachedPaddingH=null,e.options.lineWrapping||(e.display.maxLineChanged=!0),e.display.lineNumChars=null}function jn(){return c&&g?-(document.body.getBoundingClientRect().left-parseInt(getComputedStyle(document.body).marginLeft)):window.pageXOffset||(document.documentElement||document.body).scrollLeft}function Bn(){return c&&g?-(document.body.getBoundingClientRect().top-parseInt(getComputedStyle(document.body).marginTop)):window.pageYOffset||(document.documentElement||document.body).scrollTop}function $n(e){var t=0;if(e.widgets)for(var n=0;n<e.widgets.length;++n)e.widgets[n].above&&(t+=kn(e.widgets[n]));return t}function qn(e,t,n,r,i){if(!i){var o=$n(t);n.top+=o,n.bottom+=o}if("line"==r)return n;r||(r="local");var l=$t(t);if("local"==r?l+=Cn(e.display):l-=e.display.viewOffset,"page"==r||"window"==r){var s=e.display.lineSpace.getBoundingClientRect();l+=s.top+("window"==r?0:Bn());var a=s.left+("window"==r?0:jn());n.left+=a,n.right+=a}return n.top+=l,n.bottom+=l,n}function Un(e,t,n){if("div"==n)return t;var r=t.left,i=t.top;if("page"==n)r-=jn(),i-=Bn();else if("local"==n||!n){var o=e.display.sizer.getBoundingClientRect();r+=o.left,i+=o.top}var l=e.display.lineSpace.getBoundingClientRect();return{left:r-l.left,top:i-l.top}}function Gn(e,t,n,r,i){return r||(r=Ge(e.doc,t.line)),qn(e,r,Fn(e,r,t.ch,i),n)}function Vn(e,t,n,r,i,o){function l(t,l){var s=_n(e,i,t,l?"right":"left",o);return l?s.left=s.right:s.right=s.left,qn(e,r,s,n)}r=r||Ge(e.doc,t.line),i||(i=On(e,r));var s=ue(r,e.doc.direction),a=t.ch,u=t.sticky;if(a>=r.text.length?(a=r.text.length,u="before"):a<=0&&(a=0,u="after"),!s)return l("before"==u?a-1:a,"before"==u);function c(e,t,n){return l(n?e-1:e,1==s[t].level!=n)}var h=se(s,a,u),d=le,f=c(a,h,"before"==u);return null!=d&&(f.other=c(a,d,"before"!=u)),f}function Kn(e,t){var n=0;t=st(e.doc,t),e.options.lineWrapping||(n=ir(e.display)*t.ch);var r=Ge(e.doc,t.line),i=$t(r)+Cn(e.display);return{left:n,right:n,top:i,bottom:i+r.height}}function Xn(e,t,n,r,i){var o=et(e,t,n);return o.xRel=i,r&&(o.outside=r),o}function Zn(e,t,n){var r=e.doc;if((n+=e.display.viewOffset)<0)return Xn(r.first,0,null,-1,-1);var i=Ye(r,n),o=r.first+r.size-1;if(i>o)return Xn(r.first+r.size-1,Ge(r,o).text.length,null,1,1);t<0&&(t=0);for(var l=Ge(r,i);;){var s=er(e,l,i,t,n),a=zt(l,s.ch+(s.xRel>0||s.outside>0?1:0));if(!a)return s;var u=a.find(1);if(u.line==i)return u;l=Ge(r,i=u.line)}}function Yn(e,t,n,r){r-=$n(t);var i=t.text.length,o=oe((function(t){return _n(e,n,t-1).bottom<=r}),i,0);return{begin:o,end:i=oe((function(t){return _n(e,n,t).top>r}),o,i)}}function Qn(e,t,n,r){return n||(n=On(e,t)),Yn(e,t,n,qn(e,t,_n(e,n,r),"line").top)}function Jn(e,t,n,r){return!(e.bottom<=n)&&(e.top>n||(r?e.left:e.right)>t)}function er(e,t,n,r,i){i-=$t(t);var o=On(e,t),l=$n(t),s=0,a=t.text.length,u=!0,c=ue(t,e.doc.direction);if(c){var h=(e.options.lineWrapping?nr:tr)(e,t,n,o,c,r,i);s=(u=1!=h.level)?h.from:h.to-1,a=u?h.to:h.from-1}var d,f,p=null,m=null,g=oe((function(t){var n=_n(e,o,t);return n.top+=l,n.bottom+=l,!!Jn(n,r,i,!1)&&(n.top<=i&&n.left<=r&&(p=t,m=n),!0)}),s,a),v=!1;if(m){var x=r-m.left<m.right-r,y=x==u;g=p+(y?0:1),f=y?"after":"before",d=x?m.left:m.right}else{u||g!=a&&g!=s||g++,f=0==g?"after":g==t.text.length?"before":_n(e,o,g-(u?1:0)).bottom+l<=i==u?"after":"before";var b=Vn(e,et(n,g,f),"line",t,o);d=b.left,v=i<b.top?-1:i>=b.bottom?1:0}return Xn(n,g=ie(t.text,g,1),f,v,r-d)}function tr(e,t,n,r,i,o,l){var s=oe((function(s){var a=i[s],u=1!=a.level;return Jn(Vn(e,et(n,u?a.to:a.from,u?"before":"after"),"line",t,r),o,l,!0)}),0,i.length-1),a=i[s];if(s>0){var u=1!=a.level,c=Vn(e,et(n,u?a.from:a.to,u?"after":"before"),"line",t,r);Jn(c,o,l,!0)&&c.top>l&&(a=i[s-1])}return a}function nr(e,t,n,r,i,o,l){var s=Yn(e,t,r,l),a=s.begin,u=s.end;/\s/.test(t.text.charAt(u-1))&&u--;for(var c=null,h=null,d=0;d<i.length;d++){var f=i[d];if(!(f.from>=u||f.to<=a)){var p=_n(e,r,1!=f.level?Math.min(u,f.to)-1:Math.max(a,f.from)).right,m=p<o?o-p+1e9:p-o;(!c||h>m)&&(c=f,h=m)}}return c||(c=i[i.length-1]),c.from<a&&(c={from:a,to:c.to,level:c.level}),c.to>u&&(c={from:c.from,to:u,level:c.level}),c}function rr(e){if(null!=e.cachedTextHeight)return e.cachedTextHeight;if(null==En){En=A("pre",null,"CodeMirror-line-like");for(var t=0;t<49;++t)En.appendChild(document.createTextNode("x")),En.appendChild(A("br"));En.appendChild(document.createTextNode("x"))}D(e.measure,En);var n=En.offsetHeight/50;return n>3&&(e.cachedTextHeight=n),M(e.measure),n||1}function ir(e){if(null!=e.cachedCharWidth)return e.cachedCharWidth;var t=A("span","xxxxxxxxxx"),n=A("pre",[t],"CodeMirror-line-like");D(e.measure,n);var r=t.getBoundingClientRect(),i=(r.right-r.left)/10;return i>2&&(e.cachedCharWidth=i),i||10}function or(e){for(var t=e.display,n={},r={},i=t.gutters.clientLeft,o=t.gutters.firstChild,l=0;o;o=o.nextSibling,++l){var s=e.display.gutterSpecs[l].className;n[s]=o.offsetLeft+o.clientLeft+i,r[s]=o.clientWidth}return{fixedPos:lr(t),gutterTotalWidth:t.gutters.offsetWidth,gutterLeft:n,gutterWidth:r,wrapperWidth:t.wrapper.clientWidth}}function lr(e){return e.scroller.getBoundingClientRect().left-e.sizer.getBoundingClientRect().left}function sr(e){var t=rr(e.display),n=e.options.lineWrapping,r=n&&Math.max(5,e.display.scroller.clientWidth/ir(e.display)-3);return function(i){if(jt(e.doc,i))return 0;var o=0;if(i.widgets)for(var l=0;l<i.widgets.length;l++)i.widgets[l].height&&(o+=i.widgets[l].height);return n?o+(Math.ceil(i.text.length/r)||1)*t:o+t}}function ar(e){var t=e.doc,n=sr(e);t.iter((function(e){var t=n(e);t!=e.height&&Xe(e,t)}))}function ur(e,t,n,r){var i=e.display;if(!n&&"true"==Ce(t).getAttribute("cm-not-content"))return null;var o,l,s=i.lineSpace.getBoundingClientRect();try{o=t.clientX-s.left,l=t.clientY-s.top}catch(t){return null}var a,u=Zn(e,o,l);if(r&&u.xRel>0&&(a=Ge(e.doc,u.line).text).length==u.ch){var c=H(a,a.length,e.options.tabSize)-a.length;u=et(u.line,Math.max(0,Math.round((o-Ln(e.display).left)/ir(e.display))-c))}return u}function cr(e,t){if(t>=e.display.viewTo)return null;if((t-=e.display.viewFrom)<0)return null;for(var n=e.display.view,r=0;r<n.length;r++)if((t-=n[r].size)<0)return r}function hr(e,t,n,r){null==t&&(t=e.doc.first),null==n&&(n=e.doc.first+e.doc.size),r||(r=0);var i=e.display;if(r&&n<i.viewTo&&(null==i.updateLineNumbers||i.updateLineNumbers>t)&&(i.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=i.viewTo)wt&&It(e.doc,t)<i.viewTo&&fr(e);else if(n<=i.viewFrom)wt&&Rt(e.doc,n+r)>i.viewFrom?fr(e):(i.viewFrom+=r,i.viewTo+=r);else if(t<=i.viewFrom&&n>=i.viewTo)fr(e);else if(t<=i.viewFrom){var o=pr(e,n,n+r,1);o?(i.view=i.view.slice(o.index),i.viewFrom=o.lineN,i.viewTo+=r):fr(e)}else if(n>=i.viewTo){var l=pr(e,t,t,-1);l?(i.view=i.view.slice(0,l.index),i.viewTo=l.lineN):fr(e)}else{var s=pr(e,t,t,-1),a=pr(e,n,n+r,1);s&&a?(i.view=i.view.slice(0,s.index).concat(on(e,s.lineN,a.lineN)).concat(i.view.slice(a.index)),i.viewTo+=r):fr(e)}var u=i.externalMeasured;u&&(n<u.lineN?u.lineN+=r:t<u.lineN+u.size&&(i.externalMeasured=null))}function dr(e,t,n){e.curOp.viewChanged=!0;var r=e.display,i=e.display.externalMeasured;if(i&&t>=i.lineN&&t<i.lineN+i.size&&(r.externalMeasured=null),!(t<r.viewFrom||t>=r.viewTo)){var o=r.view[cr(e,t)];if(null!=o.node){var l=o.changes||(o.changes=[]);-1==R(l,n)&&l.push(n)}}}function fr(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function pr(e,t,n,r){var i,o=cr(e,t),l=e.display.view;if(!wt||n==e.doc.first+e.doc.size)return{index:o,lineN:n};for(var s=e.display.viewFrom,a=0;a<o;a++)s+=l[a].size;if(s!=t){if(r>0){if(o==l.length-1)return null;i=s+l[o].size-t,o++}else i=s-t;t+=i,n+=i}for(;It(e.doc,n)!=n;){if(o==(r<0?0:l.length-1))return null;n+=r*l[o-(r<0?1:0)].size,o+=r}return{index:o,lineN:n}}function mr(e){for(var t=e.display.view,n=0,r=0;r<t.length;r++){var i=t[r];i.hidden||i.node&&!i.changes||++n}return n}function gr(e){e.display.input.showSelection(e.display.input.prepareSelection())}function vr(e,t){void 0===t&&(t=!0);for(var n=e.doc,r={},i=r.cursors=document.createDocumentFragment(),o=r.selection=document.createDocumentFragment(),l=0;l<n.sel.ranges.length;l++)if(t||l!=n.sel.primIndex){var s=n.sel.ranges[l];if(!(s.from().line>=e.display.viewTo||s.to().line<e.display.viewFrom)){var a=s.empty();(a||e.options.showCursorWhenSelecting)&&xr(e,s.head,i),a||br(e,s,o)}}return r}function xr(e,t,n){var r=Vn(e,t,"div",null,null,!e.options.singleCursorHeightPerLine),i=n.appendChild(A("div"," ","CodeMirror-cursor"));if(i.style.left=r.left+"px",i.style.top=r.top+"px",i.style.height=Math.max(0,r.bottom-r.top)*e.options.cursorHeight+"px",r.other){var o=n.appendChild(A("div"," ","CodeMirror-cursor 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r(t,n,"ltr",0);for(var i=!1,o=0;o<e.length;++o){var l=e[o];(l.from<n&&l.to>t||t==n&&l.to==t)&&(r(Math.max(l.from,t),Math.min(l.to,n),1==l.level?"rtl":"ltr",o),i=!0)}i||r(t,n,"ltr")}(m,n||0,null==r?d:r,(function(e,t,i,h){var g="ltr"==i,v=f(e,g?"left":"right"),x=f(t-1,g?"right":"left"),y=null==n&&0==e,b=null==r&&t==d,k=0==h,w=!m||h==m.length-1;if(x.top-v.top<=3){var C=(u?b:y)&&w,S=(u?y:b)&&k?s:(g?v:x).left,L=C?a:(g?x:v).right;c(S,v.top,L-S,v.bottom)}else{var T,M,D,A;g?(T=u&&y&&k?s:v.left,M=u?a:p(e,i,"before"),D=u?s:p(t,i,"after"),A=u&&b&&w?a:x.right):(T=u?p(e,i,"before"):s,M=!u&&y&&k?a:v.right,D=!u&&b&&w?s:x.left,A=u?p(t,i,"after"):a),c(T,v.top,M-T,v.bottom),v.bottom<x.top&&c(s,v.bottom,null,x.top),c(D,x.top,A-D,x.bottom)}(!o||yr(v,o)<0)&&(o=v),yr(x,o)<0&&(o=x),(!l||yr(v,l)<0)&&(l=v),yr(x,l)<0&&(l=x)})),{start:o,end:l}}var d=t.from(),f=t.to();if(d.line==f.line)h(d.line,d.ch,f.ch);else{var p=Ge(i,d.line),m=Ge(i,f.line),g=Ht(p)==Ht(m),v=h(d.line,d.ch,g?p.text.length+1:null).end,x=h(f.line,g?0:null,f.ch).start;g&&(v.top<x.top-2?(c(v.right,v.top,null,v.bottom),c(s,x.top,x.left,x.bottom)):c(v.right,v.top,x.left-v.right,v.bottom)),v.bottom<x.top&&c(s,v.bottom,null,x.top)}n.appendChild(o)}function kr(e){if(e.state.focused){var t=e.display;clearInterval(t.blinker);var n=!0;t.cursorDiv.style.visibility="",e.options.cursorBlinkRate>0?t.blinker=setInterval((function(){return t.cursorDiv.style.visibility=(n=!n)?"":"hidden"}),e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function wr(e){e.state.focused||(e.display.input.focus(),Sr(e))}function Cr(e){e.state.delayingBlurEvent=!0,setTimeout((function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,Lr(e))}),100)}function Sr(e,t){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(pe(e,"focus",e,t),e.state.focused=!0,_(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),a&&setTimeout((function(){return e.display.input.reset(!0)}),20)),e.display.input.receivedFocus()),kr(e))}function Lr(e,t){e.state.delayingBlurEvent||(e.state.focused&&(pe(e,"blur",e,t),e.state.focused=!1,T(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout((function(){e.state.focused||(e.display.shift=!1)}),150))}function Tr(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=0;r<t.view.length;r++){var i=t.view[r],o=e.options.lineWrapping,a=void 0,u=0;if(!i.hidden){if(l&&s<8){var c=i.node.offsetTop+i.node.offsetHeight;a=c-n,n=c}else{var h=i.node.getBoundingClientRect();a=h.bottom-h.top,!o&&i.text.firstChild&&(u=i.text.firstChild.getBoundingClientRect().right-h.left-1)}var d=i.line.height-a;if((d>.005||d<-.005)&&(Xe(i.line,a),Mr(i.line),i.rest))for(var f=0;f<i.rest.length;f++)Mr(i.rest[f]);if(u>e.display.sizerWidth){var p=Math.ceil(u/ir(e.display));p>e.display.maxLineLength&&(e.display.maxLineLength=p,e.display.maxLine=i.line,e.display.maxLineChanged=!0)}}}}function Mr(e){if(e.widgets)for(var t=0;t<e.widgets.length;++t){var n=e.widgets[t],r=n.node.parentNode;r&&(n.height=r.offsetHeight)}}function Dr(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop;r=Math.floor(r-Cn(e));var i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=Ye(t,r),l=Ye(t,i);if(n&&n.ensure){var s=n.ensure.from.line,a=n.ensure.to.line;s<o?(o=s,l=Ye(t,$t(Ge(t,s))+e.wrapper.clientHeight)):Math.min(a,t.lastLine())>=l&&(o=Ye(t,$t(Ge(t,a))-e.wrapper.clientHeight),l=a)}return{from:o,to:Math.max(l,o+1)}}function Ar(e,t){var n=e.display,r=rr(e.display);t.top<0&&(t.top=0);var i=e.curOp&&null!=e.curOp.scrollTop?e.curOp.scrollTop:n.scroller.scrollTop,o=Dn(e),l={};t.bottom-t.top>o&&(t.bottom=t.top+o);var s=e.doc.height+Sn(n),a=t.top<r,u=t.bottom>s-r;if(t.top<i)l.scrollTop=a?0:t.top;else if(t.bottom>i+o){var c=Math.min(t.top,(u?s:t.bottom)-o);c!=i&&(l.scrollTop=c)}var h=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:n.scroller.scrollLeft,d=Mn(e)-(e.options.fixedGutter?n.gutters.offsetWidth:0),f=t.right-t.left>d;return f&&(t.right=t.left+d),t.left<10?l.scrollLeft=0:t.left<h?l.scrollLeft=Math.max(0,t.left-(f?0:10)):t.right>d+h-3&&(l.scrollLeft=t.right+(f?0:10)-d),l}function Fr(e,t){null!=t&&(_r(e),e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc.scrollTop:e.curOp.scrollTop)+t)}function Nr(e){_r(e);var t=e.getCursor();e.curOp.scrollToPos={from:t,to:t,margin:e.options.cursorScrollMargin}}function Or(e,t,n){null==t&&null==n||_r(e),null!=t&&(e.curOp.scrollLeft=t),null!=n&&(e.curOp.scrollTop=n)}function _r(e){var t=e.curOp.scrollToPos;t&&(e.curOp.scrollToPos=null,Er(e,Kn(e,t.from),Kn(e,t.to),t.margin))}function Er(e,t,n,r){var i=Ar(e,{left:Math.min(t.left,n.left),top:Math.min(t.top,n.top)-r,right:Math.max(t.right,n.right),bottom:Math.max(t.bottom,n.bottom)+r});Or(e,i.scrollLeft,i.scrollTop)}function Wr(e,t){Math.abs(e.doc.scrollTop-t)<2||(n||ai(e,{top:t}),zr(e,t,!0),n&&ai(e),ri(e,100))}function zr(e,t,n){t=Math.max(0,Math.min(e.display.scroller.scrollHeight-e.display.scroller.clientHeight,t)),(e.display.scroller.scrollTop!=t||n)&&(e.doc.scrollTop=t,e.display.scrollbars.setScrollTop(t),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t))}function Pr(e,t,n,r){t=Math.max(0,Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth)),(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)&&!r||(e.doc.scrollLeft=t,hi(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function Hr(e){var t=e.display,n=t.gutters.offsetWidth,r=Math.round(e.doc.height+Sn(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:r,scrollHeight:r+Tn(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}var Ir=function(e,t,n){this.cm=n;var r=this.vert=A("div",[A("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),i=this.horiz=A("div",[A("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");r.tabIndex=i.tabIndex=-1,e(r),e(i),he(r,"scroll",(function(){r.clientHeight&&t(r.scrollTop,"vertical")})),he(i,"scroll",(function(){i.clientWidth&&t(i.scrollLeft,"horizontal")})),this.checkedZeroWidth=!1,l&&s<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")};Ir.prototype.update=function(e){var t=e.scrollWidth>e.clientWidth+1,n=e.scrollHeight>e.clientHeight+1,r=e.nativeBarWidth;if(n){this.vert.style.display="block",this.vert.style.bottom=t?r+"px":"0";var i=e.viewHeight-(t?r:0);this.vert.firstChild.style.height=Math.max(0,e.scrollHeight-e.clientHeight+i)+"px"}else this.vert.style.display="",this.vert.firstChild.style.height="0";if(t){this.horiz.style.display="block",this.horiz.style.right=n?r+"px":"0",this.horiz.style.left=e.barLeft+"px";var o=e.viewWidth-e.barLeft-(n?r:0);this.horiz.firstChild.style.width=Math.max(0,e.scrollWidth-e.clientWidth+o)+"px"}else this.horiz.style.display="",this.horiz.firstChild.style.width="0";return!this.checkedZeroWidth&&e.clientHeight>0&&(0==r&&this.zeroWidthHack(),this.checkedZeroWidth=!0),{right:n?r:0,bottom:t?r:0}},Ir.prototype.setScrollLeft=function(e){this.horiz.scrollLeft!=e&&(this.horiz.scrollLeft=e),this.disableHoriz&&this.enableZeroWidthBar(this.horiz,this.disableHoriz,"horiz")},Ir.prototype.setScrollTop=function(e){this.vert.scrollTop!=e&&(this.vert.scrollTop=e),this.disableVert&&this.enableZeroWidthBar(this.vert,this.disableVert,"vert")},Ir.prototype.zeroWidthHack=function(){var e=x&&!f?"12px":"18px";this.horiz.style.height=this.vert.style.width=e,this.horiz.style.pointerEvents=this.vert.style.pointerEvents="none",this.disableHoriz=new I,this.disableVert=new I},Ir.prototype.enableZeroWidthBar=function(e,t,n){e.style.pointerEvents="auto",t.set(1e3,(function r(){var i=e.getBoundingClientRect();("vert"==n?document.elementFromPoint(i.right-1,(i.top+i.bottom)/2):document.elementFromPoint((i.right+i.left)/2,i.bottom-1))!=e?e.style.pointerEvents="none":t.set(1e3,r)}))},Ir.prototype.clear=function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)};var Rr=function(){};function jr(e,t){t||(t=Hr(e));var n=e.display.barWidth,r=e.display.barHeight;Br(e,t);for(var i=0;i<4&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&Tr(e),Br(e,Hr(e)),n=e.display.barWidth,r=e.display.barHeight}function Br(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",n.heightForcer.style.borderBottom=r.bottom+"px solid transparent",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}Rr.prototype.update=function(){return{bottom:0,right:0}},Rr.prototype.setScrollLeft=function(){},Rr.prototype.setScrollTop=function(){},Rr.prototype.clear=function(){};var $r={native:Ir,null:Rr};function qr(e){e.display.scrollbars&&(e.display.scrollbars.clear(),e.display.scrollbars.addClass&&T(e.display.wrapper,e.display.scrollbars.addClass)),e.display.scrollbars=new $r[e.options.scrollbarStyle]((function(t){e.display.wrapper.insertBefore(t,e.display.scrollbarFiller),he(t,"mousedown",(function(){e.state.focused&&setTimeout((function(){return e.display.input.focus()}),0)})),t.setAttribute("cm-not-content","true")}),(function(t,n){"horizontal"==n?Pr(e,t):Wr(e,t)}),e),e.display.scrollbars.addClass&&_(e.display.wrapper,e.display.scrollbars.addClass)}var Ur=0;function Gr(e){var t;e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:0,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Ur},t=e.curOp,ln?ln.ops.push(t):t.ownsGroup=ln={ops:[t],delayedCallbacks:[]}}function Vr(e){var t=e.curOp;t&&function(e,t){var n=e.ownsGroup;if(n)try{!function(e){var t=e.delayedCallbacks,n=0;do{for(;n<t.length;n++)t[n].call(null);for(var r=0;r<e.ops.length;r++){var i=e.ops[r];if(i.cursorActivityHandlers)for(;i.cursorActivityCalled<i.cursorActivityHandlers.length;)i.cursorActivityHandlers[i.cursorActivityCalled++].call(null,i.cm)}}while(n<t.length)}(n)}finally{ln=null,t(n)}}(t,(function(e){for(var t=0;t<e.ops.length;t++)e.ops[t].cm.curOp=null;!function(e){for(var t=e.ops,n=0;n<t.length;n++)Kr(t[n]);for(var r=0;r<t.length;r++)Xr(t[r]);for(var i=0;i<t.length;i++)Zr(t[i]);for(var o=0;o<t.length;o++)Yr(t[o]);for(var l=0;l<t.length;l++)Qr(t[l])}(e)}))}function Kr(e){var t=e.cm,n=t.display;!function(e){var t=e.display;!t.scrollbarsClipped&&t.scroller.offsetWidth&&(t.nativeBarWidth=t.scroller.offsetWidth-t.scroller.clientWidth,t.heightForcer.style.height=Tn(e)+"px",t.sizer.style.marginBottom=-t.nativeBarWidth+"px",t.sizer.style.borderRightWidth=Tn(e)+"px",t.scrollbarsClipped=!0)}(t),e.updateMaxLine&&Ut(t),e.mustUpdate=e.viewChanged||e.forceUpdate||null!=e.scrollTop||e.scrollToPos&&(e.scrollToPos.from.line<n.viewFrom||e.scrollToPos.to.line>=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new oi(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function Xr(e){e.updatedDisplay=e.mustUpdate&&li(e.cm,e.update)}function Zr(e){var t=e.cm,n=t.display;e.updatedDisplay&&Tr(t),e.barMeasure=Hr(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Fn(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Tn(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-Mn(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}function Yr(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeft<t.doc.scrollLeft&&Pr(t,Math.min(t.display.scroller.scrollLeft,e.maxScrollLeft),!0),t.display.maxLineChanged=!1);var n=e.focus&&e.focus==O();e.preparedSelection&&t.display.input.showSelection(e.preparedSelection,n),(e.updatedDisplay||e.startHeight!=t.doc.height)&&jr(t,e.barMeasure),e.updatedDisplay&&ci(t,e.barMeasure),e.selectionChanged&&kr(t),t.state.focused&&e.updateInput&&t.display.input.reset(e.typing),n&&wr(e.cm)}function Qr(e){var t=e.cm,n=t.display,r=t.doc;e.updatedDisplay&&si(t,e.update),null==n.wheelStartX||null==e.scrollTop&&null==e.scrollLeft&&!e.scrollToPos||(n.wheelStartX=n.wheelStartY=null),null!=e.scrollTop&&zr(t,e.scrollTop,e.forceScroll),null!=e.scrollLeft&&Pr(t,e.scrollLeft,!0,!0),e.scrollToPos&&function(e,t){if(!me(e,"scrollCursorIntoView")){var n=e.display,r=n.sizer.getBoundingClientRect(),i=null;if(t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null!=i&&!p){var o=A("div","​",null,"position: absolute;\n                         top: "+(t.top-n.viewOffset-Cn(e.display))+"px;\n                         height: "+(t.bottom-t.top+Tn(e)+n.barHeight)+"px;\n                         left: "+t.left+"px; width: "+Math.max(2,t.right-t.left)+"px;");e.display.lineSpace.appendChild(o),o.scrollIntoView(i),e.display.lineSpace.removeChild(o)}}}(t,function(e,t,n,r){var i;null==r&&(r=0),e.options.lineWrapping||t!=n||(n="before"==(t=t.ch?et(t.line,"before"==t.sticky?t.ch-1:t.ch,"after"):t).sticky?et(t.line,t.ch+1,"before"):t);for(var o=0;o<5;o++){var l=!1,s=Vn(e,t),a=n&&n!=t?Vn(e,n):s,u=Ar(e,i={left:Math.min(s.left,a.left),top:Math.min(s.top,a.top)-r,right:Math.max(s.left,a.left),bottom:Math.max(s.bottom,a.bottom)+r}),c=e.doc.scrollTop,h=e.doc.scrollLeft;if(null!=u.scrollTop&&(Wr(e,u.scrollTop),Math.abs(e.doc.scrollTop-c)>1&&(l=!0)),null!=u.scrollLeft&&(Pr(e,u.scrollLeft),Math.abs(e.doc.scrollLeft-h)>1&&(l=!0)),!l)break}return i}(t,st(r,e.scrollToPos.from),st(r,e.scrollToPos.to),e.scrollToPos.margin));var i=e.maybeHiddenMarkers,o=e.maybeUnhiddenMarkers;if(i)for(var l=0;l<i.length;++l)i[l].lines.length||pe(i[l],"hide");if(o)for(var s=0;s<o.length;++s)o[s].lines.length&&pe(o[s],"unhide");n.wrapper.offsetHeight&&(r.scrollTop=t.display.scroller.scrollTop),e.changeObjs&&pe(t,"changes",t,e.changeObjs),e.update&&e.update.finish()}function Jr(e,t){if(e.curOp)return t();Gr(e);try{return t()}finally{Vr(e)}}function ei(e,t){return function(){if(e.curOp)return t.apply(e,arguments);Gr(e);try{return t.apply(e,arguments)}finally{Vr(e)}}}function ti(e){return function(){if(this.curOp)return e.apply(this,arguments);Gr(this);try{return e.apply(this,arguments)}finally{Vr(this)}}}function ni(e){return function(){var t=this.cm;if(!t||t.curOp)return e.apply(this,arguments);Gr(t);try{return e.apply(this,arguments)}finally{Vr(t)}}}function ri(e,t){e.doc.highlightFrontier<e.display.viewTo&&e.state.highlight.set(t,z(ii,e))}function ii(e){var t=e.doc;if(!(t.highlightFrontier>=e.display.viewTo)){var n=+new Date+e.options.workTime,r=ft(e,t.highlightFrontier),i=[];t.iter(r.line,Math.min(t.first+t.size,e.display.viewTo+500),(function(o){if(r.line>=e.display.viewFrom){var l=o.styles,s=o.text.length>e.options.maxHighlightLength?Be(t.mode,r.state):null,a=ht(e,o,r,!0);s&&(r.state=s),o.styles=a.styles;var u=o.styleClasses,c=a.classes;c?o.styleClasses=c:u&&(o.styleClasses=null);for(var h=!l||l.length!=o.styles.length||u!=c&&(!u||!c||u.bgClass!=c.bgClass||u.textClass!=c.textClass),d=0;!h&&d<l.length;++d)h=l[d]!=o.styles[d];h&&i.push(r.line),o.stateAfter=r.save(),r.nextLine()}else o.text.length<=e.options.maxHighlightLength&&pt(e,o.text,r),o.stateAfter=r.line%5==0?r.save():null,r.nextLine();if(+new Date>n)return ri(e,e.options.workDelay),!0})),t.highlightFrontier=r.line,t.modeFrontier=Math.max(t.modeFrontier,r.line),i.length&&Jr(e,(function(){for(var t=0;t<i.length;t++)dr(e,i[t],"text")}))}}var oi=function(e,t,n){var r=e.display;this.viewport=t,this.visible=Dr(r,e.doc,t),this.editorIsHidden=!r.wrapper.offsetWidth,this.wrapperHeight=r.wrapper.clientHeight,this.wrapperWidth=r.wrapper.clientWidth,this.oldDisplayWidth=Mn(e),this.force=n,this.dims=or(e),this.events=[]};function li(e,t){var n=e.display,r=e.doc;if(t.editorIsHidden)return fr(e),!1;if(!t.force&&t.visible.from>=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==mr(e))return!1;di(e)&&(fr(e),t.dims=or(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),l=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFrom<o&&o-n.viewFrom<20&&(o=Math.max(r.first,n.viewFrom)),n.viewTo>l&&n.viewTo-l<20&&(l=Math.min(i,n.viewTo)),wt&&(o=It(e.doc,o),l=Rt(e.doc,l));var s=o!=n.viewFrom||l!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;!function(e,t,n){var r=e.display;0==r.view.length||t>=r.viewTo||n<=r.viewFrom?(r.view=on(e,t,n),r.viewFrom=t):(r.viewFrom>t?r.view=on(e,t,r.viewFrom).concat(r.view):r.viewFrom<t&&(r.view=r.view.slice(cr(e,t))),r.viewFrom=t,r.viewTo<n?r.view=r.view.concat(on(e,r.viewTo,n)):r.viewTo>n&&(r.view=r.view.slice(0,cr(e,n)))),r.viewTo=n}(e,o,l),n.viewOffset=$t(Ge(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var u=mr(e);if(!s&&0==u&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var c=function(e){if(e.hasFocus())return null;var t=O();if(!t||!N(e.display.lineDiv,t))return null;var n={activeElt:t};if(window.getSelection){var r=window.getSelection();r.anchorNode&&r.extend&&N(e.display.lineDiv,r.anchorNode)&&(n.anchorNode=r.anchorNode,n.anchorOffset=r.anchorOffset,n.focusNode=r.focusNode,n.focusOffset=r.focusOffset)}return n}(e);return u>4&&(n.lineDiv.style.display="none"),function(e,t,n){var r=e.display,i=e.options.lineNumbers,o=r.lineDiv,l=o.firstChild;function s(t){var n=t.nextSibling;return a&&x&&e.display.currentWheelTarget==t?t.style.display="none":t.parentNode.removeChild(t),n}for(var u=r.view,c=r.viewFrom,h=0;h<u.length;h++){var d=u[h];if(d.hidden);else if(d.node&&d.node.parentNode==o){for(;l!=d.node;)l=s(l);var f=i&&null!=t&&t<=c&&d.lineNumber;d.changes&&(R(d.changes,"gutter")>-1&&(f=!1),cn(e,d,c,n)),f&&(M(d.lineNumber),d.lineNumber.appendChild(document.createTextNode(Je(e.options,c)))),l=d.node.nextSibling}else{var p=vn(e,d,c,n);o.insertBefore(p,l)}c+=d.size}for(;l;)l=s(l)}(e,n.updateLineNumbers,t.dims),u>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,function(e){if(e&&e.activeElt&&e.activeElt!=O()&&(e.activeElt.focus(),e.anchorNode&&N(document.body,e.anchorNode)&&N(document.body,e.focusNode))){var t=window.getSelection(),n=document.createRange();n.setEnd(e.anchorNode,e.anchorOffset),n.collapse(!1),t.removeAllRanges(),t.addRange(n),t.extend(e.focusNode,e.focusOffset)}}(c),M(n.cursorDiv),M(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,s&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,ri(e,400)),n.updateLineNumbers=null,!0}function si(e,t){for(var n=t.viewport,r=!0;(r&&e.options.lineWrapping&&t.oldDisplayWidth!=Mn(e)||(n&&null!=n.top&&(n={top:Math.min(e.doc.height+Sn(e.display)-Dn(e),n.top)}),t.visible=Dr(e.display,e.doc,n),!(t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)))&&li(e,t);r=!1){Tr(e);var i=Hr(e);gr(e),jr(e,i),ci(e,i),t.force=!1}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function ai(e,t){var n=new oi(e,t);if(li(e,n)){Tr(e),si(e,n);var r=Hr(e);gr(e),jr(e,r),ci(e,r),n.finish()}}function ui(e){var t=e.gutters.offsetWidth;e.sizer.style.marginLeft=t+"px"}function ci(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+Tn(e)+"px"}function hi(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=lr(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",l=0;l<n.length;l++)if(!n[l].hidden){e.options.fixedGutter&&(n[l].gutter&&(n[l].gutter.style.left=o),n[l].gutterBackground&&(n[l].gutterBackground.style.left=o));var s=n[l].alignable;if(s)for(var a=0;a<s.length;a++)s[a].style.left=o}e.options.fixedGutter&&(t.gutters.style.left=r+i+"px")}}function di(e){if(!e.options.lineNumbers)return!1;var t=e.doc,n=Je(e.options,t.first+t.size-1),r=e.display;if(n.length!=r.lineNumChars){var i=r.measure.appendChild(A("div",[A("div",n)],"CodeMirror-linenumber CodeMirror-gutter-elt")),o=i.firstChild.offsetWidth,l=i.offsetWidth-o;return r.lineGutter.style.width="",r.lineNumInnerWidth=Math.max(o,r.lineGutter.offsetWidth-l)+1,r.lineNumWidth=r.lineNumInnerWidth+l,r.lineNumChars=r.lineNumInnerWidth?n.length:-1,r.lineGutter.style.width=r.lineNumWidth+"px",ui(e.display),!0}return!1}function fi(e,t){for(var n=[],r=!1,i=0;i<e.length;i++){var o=e[i],l=null;if("string"!=typeof o&&(l=o.style,o=o.className),"CodeMirror-linenumbers"==o){if(!t)continue;r=!0}n.push({className:o,style:l})}return t&&!r&&n.push({className:"CodeMirror-linenumbers",style:null}),n}function pi(e){var t=e.gutters,n=e.gutterSpecs;M(t),e.lineGutter=null;for(var r=0;r<n.length;++r){var i=n[r],o=i.className,l=i.style,s=t.appendChild(A("div",null,"CodeMirror-gutter "+o));l&&(s.style.cssText=l),"CodeMirror-linenumbers"==o&&(e.lineGutter=s,s.style.width=(e.lineNumWidth||1)+"px")}t.style.display=n.length?"":"none",ui(e)}function mi(e){pi(e.display),hr(e),hi(e)}function gi(e,t,r,i){var o=this;this.input=r,o.scrollbarFiller=A("div",null,"CodeMirror-scrollbar-filler"),o.scrollbarFiller.setAttribute("cm-not-content","true"),o.gutterFiller=A("div",null,"CodeMirror-gutter-filler"),o.gutterFiller.setAttribute("cm-not-content","true"),o.lineDiv=F("div",null,"CodeMirror-code"),o.selectionDiv=A("div",null,null,"position: relative; z-index: 1"),o.cursorDiv=A("div",null,"CodeMirror-cursors"),o.measure=A("div",null,"CodeMirror-measure"),o.lineMeasure=A("div",null,"CodeMirror-measure"),o.lineSpace=F("div",[o.measure,o.lineMeasure,o.selectionDiv,o.cursorDiv,o.lineDiv],null,"position: relative; outline: none");var u=F("div",[o.lineSpace],"CodeMirror-lines");o.mover=A("div",[u],null,"position: relative"),o.sizer=A("div",[o.mover],"CodeMirror-sizer"),o.sizerWidth=null,o.heightForcer=A("div",null,null,"position: absolute; height: 30px; width: 1px;"),o.gutters=A("div",null,"CodeMirror-gutters"),o.lineGutter=null,o.scroller=A("div",[o.sizer,o.heightForcer,o.gutters],"CodeMirror-scroll"),o.scroller.setAttribute("tabIndex","-1"),o.wrapper=A("div",[o.scrollbarFiller,o.gutterFiller,o.scroller],"CodeMirror"),l&&s<8&&(o.gutters.style.zIndex=-1,o.scroller.style.paddingRight=0),a||n&&v||(o.scroller.draggable=!0),e&&(e.appendChild?e.appendChild(o.wrapper):e(o.wrapper)),o.viewFrom=o.viewTo=t.first,o.reportedViewFrom=o.reportedViewTo=t.first,o.view=[],o.renderedView=null,o.externalMeasured=null,o.viewOffset=0,o.lastWrapHeight=o.lastWrapWidth=0,o.updateLineNumbers=null,o.nativeBarWidth=o.barHeight=o.barWidth=0,o.scrollbarsClipped=!1,o.lineNumWidth=o.lineNumInnerWidth=o.lineNumChars=null,o.alignWidgets=!1,o.cachedCharWidth=o.cachedTextHeight=o.cachedPaddingH=null,o.maxLine=null,o.maxLineLength=0,o.maxLineChanged=!1,o.wheelDX=o.wheelDY=o.wheelStartX=o.wheelStartY=null,o.shift=!1,o.selForContextMenu=null,o.activeTouch=null,o.gutterSpecs=fi(i.gutters,i.lineNumbers),pi(o),r.init(o)}oi.prototype.signal=function(e,t){ve(e,t)&&this.events.push(arguments)},oi.prototype.finish=function(){for(var e=0;e<this.events.length;e++)pe.apply(null,this.events[e])};var vi=0,xi=null;function yi(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}}function bi(e){var t=yi(e);return t.x*=xi,t.y*=xi,t}function ki(e,t){var r=yi(t),i=r.x,o=r.y,l=e.display,s=l.scroller,u=s.scrollWidth>s.clientWidth,c=s.scrollHeight>s.clientHeight;if(i&&u||o&&c){if(o&&x&&a)e:for(var d=t.target,f=l.view;d!=s;d=d.parentNode)for(var p=0;p<f.length;p++)if(f[p].node==d){e.display.currentWheelTarget=d;break e}if(i&&!n&&!h&&null!=xi)return o&&c&&Wr(e,Math.max(0,s.scrollTop+o*xi)),Pr(e,Math.max(0,s.scrollLeft+i*xi)),(!o||o&&c)&&ye(t),void(l.wheelStartX=null);if(o&&null!=xi){var 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i=e.history,o=r&&r.origin;n==i.lastSelOp||o&&i.lastSelOrigin==o&&(i.lastModTime==i.lastSelTime&&i.lastOrigin==o||function(e,t,n,r){var i=t.charAt(0);return"*"==i||"+"==i&&n.ranges.length==r.ranges.length&&n.somethingSelected()==r.somethingSelected()&&new Date-e.history.lastSelTime<=(e.cm?e.cm.options.historyEventDelay:500)}(e,o,K(i.done),t))?i.done[i.done.length-1]=t:Bi(t,i.done),i.lastSelTime=+new Date,i.lastSelOrigin=o,i.lastSelOp=n,r&&!1!==r.clearRedo&&Ii(i.undone)}function Bi(e,t){var n=K(t);n&&n.ranges&&n.equals(e)||t.push(e)}function $i(e,t,n,r){var i=t["spans_"+e.id],o=0;e.iter(Math.max(e.first,n),Math.min(e.first+e.size,r),(function(n){n.markedSpans&&((i||(i=t["spans_"+e.id]={}))[o]=n.markedSpans),++o}))}function qi(e){if(!e)return null;for(var t,n=0;n<e.length;++n)e[n].marker.explicitlyCleared?t||(t=e.slice(0,n)):t&&t.push(e[n]);return t?t.length?t:null:e}function Ui(e,t){var n=function(e,t){var n=t["spans_"+e.id];if(!n)return null;for(var r=[],i=0;i<t.text.length;++i)r.push(qi(n[i]));return r}(e,t),r=Tt(e,t);if(!n)return r;if(!r)return n;for(var i=0;i<n.length;++i){var o=n[i],l=r[i];if(o&&l)e:for(var s=0;s<l.length;++s){for(var a=l[s],u=0;u<o.length;++u)if(o[u].marker==a.marker)continue e;o.push(a)}else l&&(n[i]=l)}return n}function Gi(e,t,n){for(var r=[],i=0;i<e.length;++i){var o=e[i];if(o.ranges)r.push(n?wi.prototype.deepCopy.call(o):o);else{var l=o.changes,s=[];r.push({changes:s});for(var a=0;a<l.length;++a){var u=l[a],c=void 0;if(s.push({from:u.from,to:u.to,text:u.text}),t)for(var h in u)(c=h.match(/^spans_(\d+)$/))&&R(t,Number(c[1]))>-1&&(K(s)[h]=u[h],delete u[h])}}}return r}function Vi(e,t,n,r){if(r){var i=e.anchor;if(n){var o=tt(t,i)<0;o!=tt(n,i)<0?(i=t,t=n):o!=tt(t,n)<0&&(t=n)}return new Ci(i,t)}return new Ci(n||t,t)}function Ki(e,t,n,r,i){null==i&&(i=e.cm&&(e.cm.display.shift||e.extend)),Ji(e,new wi([Vi(e.sel.primary(),t,n,i)],0),r)}function Xi(e,t,n){for(var 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to(e,t){t.equals(e.sel)||(e.sel=t,e.cm&&(e.cm.curOp.updateInput=1,e.cm.curOp.selectionChanged=!0,ge(e.cm)),an(e,"cursorActivity",e))}function no(e){to(e,ro(e,e.sel,null,!1))}function ro(e,t,n,r){for(var i,o=0;o<t.ranges.length;o++){var l=t.ranges[o],s=t.ranges.length==e.sel.ranges.length&&e.sel.ranges[o],a=oo(e,l.anchor,s&&s.anchor,n,r),u=oo(e,l.head,s&&s.head,n,r);(i||a!=l.anchor||u!=l.head)&&(i||(i=t.ranges.slice(0,o)),i[o]=new Ci(a,u))}return i?Si(e.cm,i,t.primIndex):t}function io(e,t,n,r,i){var o=Ge(e,t.line);if(o.markedSpans)for(var l=0;l<o.markedSpans.length;++l){var s=o.markedSpans[l],a=s.marker,u="selectLeft"in a?!a.selectLeft:a.inclusiveLeft,c="selectRight"in a?!a.selectRight:a.inclusiveRight;if((null==s.from||(u?s.from<=t.ch:s.from<t.ch))&&(null==s.to||(c?s.to>=t.ch:s.to>t.ch))){if(i&&(pe(a,"beforeCursorEnter"),a.explicitlyCleared)){if(o.markedSpans){--l;continue}break}if(!a.atomic)continue;if(n){var h=a.find(r<0?1:-1),d=void 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s.length=0,{};c.push(Hi(e,r));var o=n?Di(e,r):K(s);po(e,r,o,Ui(e,r)),!n&&e.cm&&e.cm.scrollIntoView({from:r.from,to:Ti(r)});var l=[];Ei(e,(function(e,t){t||-1!=R(l,e.history)||(xo(e.history,r),l.push(e.history)),po(e,r,null,Ui(e,r))}))},f=i.changes.length-1;f>=0;--f){var p=d(f);if(p)return p.v}}}}function fo(e,t){if(0!=t&&(e.first+=t,e.sel=new wi(X(e.sel.ranges,(function(e){return new Ci(et(e.anchor.line+t,e.anchor.ch),et(e.head.line+t,e.head.ch))})),e.sel.primIndex),e.cm)){hr(e.cm,e.first,e.first-t,t);for(var n=e.cm.display,r=n.viewFrom;r<n.viewTo;r++)dr(e.cm,r,"gutter")}}function po(e,t,n,r){if(e.cm&&!e.cm.curOp)return ei(e.cm,po)(e,t,n,r);if(t.to.line<e.first)fo(e,t.text.length-1-(t.to.line-t.from.line));else if(!(t.from.line>e.lastLine())){if(t.from.line<e.first){var i=t.text.length-1-(e.first-t.from.line);fo(e,i),t={from:et(e.first,0),to:et(t.to.line+i,t.to.ch),text:[K(t.text)],origin:t.origin}}var o=e.lastLine();t.to.line>o&&(t={from:t.from,to:et(o,Ge(e,o).text.length),text:[t.text[0]],origin:t.origin}),t.removed=Ve(e,t.from,t.to),n||(n=Di(e,t)),e.cm?function(e,t,n){var r=e.doc,i=e.display,o=t.from,l=t.to,s=!1,a=o.line;e.options.lineWrapping||(a=Ze(Ht(Ge(r,o.line))),r.iter(a,l.line+1,(function(e){if(e==i.maxLine)return s=!0,!0}))),r.sel.contains(t.from,t.to)>-1&&ge(e),_i(r,t,n,sr(e)),e.options.lineWrapping||(r.iter(a,o.line+t.text.length,(function(e){var t=qt(e);t>i.maxLineLength&&(i.maxLine=e,i.maxLineLength=t,i.maxLineChanged=!0,s=!1)})),s&&(e.curOp.updateMaxLine=!0)),function(e,t){if(e.modeFrontier=Math.min(e.modeFrontier,t),!(e.highlightFrontier<t-10)){for(var n=e.first,r=t-1;r>n;r--){var i=Ge(e,r).stateAfter;if(i&&(!(i instanceof ut)||r+i.lookAhead<t)){n=r+1;break}}e.highlightFrontier=Math.min(e.highlightFrontier,n)}}(r,o.line),ri(e,400);var u=t.text.length-(l.line-o.line)-1;t.full?hr(e):o.line!=l.line||1!=t.text.length||Oi(e.doc,t)?hr(e,o.line,l.line+1,u):dr(e,o.line,"text");var c=ve(e,"changes"),h=ve(e,"change");if(h||c){var d={from:o,to:l,text:t.text,removed:t.removed,origin:t.origin};h&&an(e,"change",e,d),c&&(e.curOp.changeObjs||(e.curOp.changeObjs=[])).push(d)}e.display.selForContextMenu=null}(e.cm,t,r):_i(e,t,r),eo(e,n,B),e.cantEdit&&oo(e,et(e.firstLine(),0))&&(e.cantEdit=!1)}}function mo(e,t,n,r,i){var o;r||(r=n),tt(r,n)<0&&(n=(o=[r,n])[0],r=o[1]),"string"==typeof t&&(t=e.splitLines(t)),uo(e,{from:n,to:r,text:t,origin:i})}function go(e,t,n,r){n<e.line?e.line+=r:t<e.line&&(e.line=t,e.ch=0)}function vo(e,t,n,r){for(var i=0;i<e.length;++i){var o=e[i],l=!0;if(o.ranges){o.copied||((o=e[i]=o.deepCopy()).copied=!0);for(var s=0;s<o.ranges.length;s++)go(o.ranges[s].anchor,t,n,r),go(o.ranges[s].head,t,n,r)}else{for(var a=0;a<o.changes.length;++a){var u=o.changes[a];if(n<u.from.line)u.from=et(u.from.line+r,u.from.ch),u.to=et(u.to.line+r,u.to.ch);else if(t<=u.to.line){l=!1;break}}l||(e.splice(0,i+1),i=0)}}}function xo(e,t){var n=t.from.line,r=t.to.line,i=t.text.length-(r-n)-1;vo(e.done,n,r,i),vo(e.undone,n,r,i)}function yo(e,t,n,r){var i=t,o=t;return"number"==typeof t?o=Ge(e,lt(e,t)):i=Ze(t),null==i?null:(r(o,i)&&e.cm&&dr(e.cm,i,n),o)}function bo(e){this.lines=e,this.parent=null;for(var t=0,n=0;n<e.length;++n)e[n].parent=this,t+=e[n].height;this.height=t}function ko(e){this.children=e;for(var t=0,n=0,r=0;r<e.length;++r){var i=e[r];t+=i.chunkSize(),n+=i.height,i.parent=this}this.size=t,this.height=n,this.parent=null}Ci.prototype.from=function(){return ot(this.anchor,this.head)},Ci.prototype.to=function(){return it(this.anchor,this.head)},Ci.prototype.empty=function(){return this.head.line==this.anchor.line&&this.head.ch==this.anchor.ch},bo.prototype={chunkSize:function(){return this.lines.length},removeInner:function(e,t){for(var n=e,r=e+t;n<r;++n){var i=this.lines[n];this.height-=i.height,Vt(i),an(i,"delete")}this.lines.splice(e,t)},collapse:function(e){e.push.apply(e,this.lines)},insertInner:function(e,t,n){this.height+=n,this.lines=this.lines.slice(0,e).concat(t).concat(this.lines.slice(e));for(var r=0;r<t.length;++r)t[r].parent=this},iterN:function(e,t,n){for(var r=e+t;e<r;++e)if(n(this.lines[e]))return!0}},ko.prototype={chunkSize:function(){return this.size},removeInner:function(e,t){this.size-=t;for(var n=0;n<this.children.length;++n){var r=this.children[n],i=r.chunkSize();if(e<i){var o=Math.min(t,i-e),l=r.height;if(r.removeInner(e,o),this.height-=l-r.height,i==o&&(this.children.splice(n--,1),r.parent=null),0==(t-=o))break;e=0}else e-=i}if(this.size-t<25&&(this.children.length>1||!(this.children[0]instanceof bo))){var s=[];this.collapse(s),this.children=[new bo(s)],this.children[0].parent=this}},collapse:function(e){for(var t=0;t<this.children.length;++t)this.children[t].collapse(e)},insertInner:function(e,t,n){this.size+=t.length,this.height+=n;for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<=o){if(i.insertInner(e,t,n),i.lines&&i.lines.length>50){for(var l=i.lines.length%25+25,s=l;s<i.lines.length;){var a=new bo(i.lines.slice(s,s+=25));i.height-=a.height,this.children.splice(++r,0,a),a.parent=this}i.lines=i.lines.slice(0,l),this.maybeSpill()}break}e-=o}},maybeSpill:function(){if(!(this.children.length<=10)){var e=this;do{var t=new ko(e.children.splice(e.children.length-5,5));if(e.parent){e.size-=t.size,e.height-=t.height;var n=R(e.parent.children,e);e.parent.children.splice(n+1,0,t)}else{var r=new ko(e.children);r.parent=e,e.children=[r,t],e=r}t.parent=e.parent}while(e.children.length>10);e.parent.maybeSpill()}},iterN:function(e,t,n){for(var r=0;r<this.children.length;++r){var i=this.children[r],o=i.chunkSize();if(e<o){var l=Math.min(t,o-e);if(i.iterN(e,l,n))return!0;if(0==(t-=l))break;e=0}else e-=o}}};var wo=function(e,t,n){if(n)for(var r in n)n.hasOwnProperty(r)&&(this[r]=n[r]);this.doc=e,this.node=t};function Co(e,t,n){$t(t)<(e.curOp&&e.curOp.scrollTop||e.doc.scrollTop)&&Fr(e,n)}wo.prototype.clear=function(){var e=this.doc.cm,t=this.line.widgets,n=this.line,r=Ze(n);if(null!=r&&t){for(var i=0;i<t.length;++i)t[i]==this&&t.splice(i--,1);t.length||(n.widgets=null);var o=kn(this);Xe(n,Math.max(0,n.height-o)),e&&(Jr(e,(function(){Co(e,n,-o),dr(e,r,"widget")})),an(e,"lineWidgetCleared",e,this,r))}},wo.prototype.changed=function(){var e=this,t=this.height,n=this.doc.cm,r=this.line;this.height=null;var i=kn(this)-t;i&&(jt(this.doc,r)||Xe(r,r.height+i),n&&Jr(n,(function(){n.curOp.forceUpdate=!0,Co(n,r,i),an(n,"lineWidgetChanged",n,e,Ze(r))})))},xe(wo);var So=0,Lo=function(e,t){this.lines=[],this.type=t,this.doc=e,this.id=++So};function To(e,t,n,r,i){if(r&&r.shared)return function(e,t,n,r,i){(r=P(r)).shared=!1;var o=[To(e,t,n,r,i)],l=o[0],s=r.widgetNode;return Ei(e,(function(e){s&&(r.widgetNode=s.cloneNode(!0)),o.push(To(e,st(e,t),st(e,n),r,i));for(var a=0;a<e.linked.length;++a)if(e.linked[a].isParent)return;l=K(o)})),new Mo(o,l)}(e,t,n,r,i);if(e.cm&&!e.cm.curOp)return ei(e.cm,To)(e,t,n,r,i);var o=new Lo(e,i),l=tt(t,n);if(r&&P(r,o,!1),l>0||0==l&&!1!==o.clearWhenEmpty)return o;if(o.replacedWith&&(o.collapsed=!0,o.widgetNode=F("span",[o.replacedWith],"CodeMirror-widget"),r.handleMouseEvents||o.widgetNode.setAttribute("cm-ignore-events","true"),r.insertLeft&&(o.widgetNode.insertLeft=!0)),o.collapsed){if(Pt(e,t.line,t,n,o)||t.line!=n.line&&Pt(e,n.line,t,n,o))throw new Error("Inserting collapsed marker partially overlapping an existing one");wt=!0}o.addToHistory&&Ri(e,{from:t,to:n,origin:"markText"},e.sel,NaN);var s,a=t.line,u=e.cm;if(e.iter(a,n.line+1,(function(e){u&&o.collapsed&&!u.options.lineWrapping&&Ht(e)==u.display.maxLine&&(s=!0),o.collapsed&&a!=t.line&&Xe(e,0),function(e,t){e.markedSpans=e.markedSpans?e.markedSpans.concat([t]):[t],t.marker.attachLine(e)}(e,new Ct(o,a==t.line?t.ch:null,a==n.line?n.ch:null)),++a})),o.collapsed&&e.iter(t.line,n.line+1,(function(t){jt(e,t)&&Xe(t,0)})),o.clearOnEnter&&he(o,"beforeCursorEnter",(function(){return o.clear()})),o.readOnly&&(kt=!0,(e.history.done.length||e.history.undone.length)&&e.clearHistory()),o.collapsed&&(o.id=++So,o.atomic=!0),u){if(s&&(u.curOp.updateMaxLine=!0),o.collapsed)hr(u,t.line,n.line+1);else if(o.className||o.startStyle||o.endStyle||o.css||o.attributes||o.title)for(var c=t.line;c<=n.line;c++)dr(u,c,"text");o.atomic&&no(u.doc),an(u,"markerAdded",u,o)}return o}Lo.prototype.clear=function(){if(!this.explicitlyCleared){var e=this.doc.cm,t=e&&!e.curOp;if(t&&Gr(e),ve(this,"clear")){var n=this.find();n&&an(this,"clear",n.from,n.to)}for(var r=null,i=null,o=0;o<this.lines.length;++o){var l=this.lines[o],s=St(l.markedSpans,this);e&&!this.collapsed?dr(e,Ze(l),"text"):e&&(null!=s.to&&(i=Ze(l)),null!=s.from&&(r=Ze(l))),l.markedSpans=Lt(l.markedSpans,s),null==s.from&&this.collapsed&&!jt(this.doc,l)&&e&&Xe(l,rr(e.display))}if(e&&this.collapsed&&!e.options.lineWrapping)for(var a=0;a<this.lines.length;++a){var u=Ht(this.lines[a]),c=qt(u);c>e.display.maxLineLength&&(e.display.maxLine=u,e.display.maxLineLength=c,e.display.maxLineChanged=!0)}null!=r&&e&&this.collapsed&&hr(e,r,i+1),this.lines.length=0,this.explicitlyCleared=!0,this.atomic&&this.doc.cantEdit&&(this.doc.cantEdit=!1,e&&no(e.doc)),e&&an(e,"markerCleared",e,this,r,i),t&&Vr(e),this.parent&&this.parent.clear()}},Lo.prototype.find=function(e,t){var n,r;null==e&&"bookmark"==this.type&&(e=1);for(var i=0;i<this.lines.length;++i){var o=this.lines[i],l=St(o.markedSpans,this);if(null!=l.from&&(n=et(t?o:Ze(o),l.from),-1==e))return n;if(null!=l.to&&(r=et(t?o:Ze(o),l.to),1==e))return r}return n&&{from:n,to:r}},Lo.prototype.changed=function(){var e=this,t=this.find(-1,!0),n=this,r=this.doc.cm;t&&r&&Jr(r,(function(){var i=t.line,o=Ze(t.line),l=Nn(r,o);if(l&&(Hn(l),r.curOp.selectionChanged=r.curOp.forceUpdate=!0),r.curOp.updateMaxLine=!0,!jt(n.doc,i)&&null!=n.height){var s=n.height;n.height=null;var a=kn(n)-s;a&&Xe(i,i.height+a)}an(r,"markerChanged",r,e)}))},Lo.prototype.attachLine=function(e){if(!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;t.maybeHiddenMarkers&&-1!=R(t.maybeHiddenMarkers,this)||(t.maybeUnhiddenMarkers||(t.maybeUnhiddenMarkers=[])).push(this)}this.lines.push(e)},Lo.prototype.detachLine=function(e){if(this.lines.splice(R(this.lines,e),1),!this.lines.length&&this.doc.cm){var t=this.doc.cm.curOp;(t.maybeHiddenMarkers||(t.maybeHiddenMarkers=[])).push(this)}},xe(Lo);var Mo=function(e,t){this.markers=e,this.primary=t;for(var n=0;n<e.length;++n)e[n].parent=this};function Do(e){return e.findMarks(et(e.first,0),e.clipPos(et(e.lastLine())),(function(e){return e.parent}))}function Ao(e){for(var t=function(t){var n=e[t],r=[n.primary.doc];Ei(n.primary.doc,(function(e){return r.push(e)}));for(var i=0;i<n.markers.length;i++){var o=n.markers[i];-1==R(r,o.doc)&&(o.parent=null,n.markers.splice(i--,1))}},n=0;n<e.length;n++)t(n)}Mo.prototype.clear=function(){if(!this.explicitlyCleared){this.explicitlyCleared=!0;for(var e=0;e<this.markers.length;++e)this.markers[e].clear();an(this,"clear")}},Mo.prototype.find=function(e,t){return this.primary.find(e,t)},xe(Mo);var Fo=0,No=function(e,t,n,r,i){if(!(this instanceof No))return new No(e,t,n,r,i);null==n&&(n=0),ko.call(this,[new bo([new Gt("",null)])]),this.first=n,this.scrollTop=this.scrollLeft=0,this.cantEdit=!1,this.cleanGeneration=1,this.modeFrontier=this.highlightFrontier=n;var o=et(n,0);this.sel=Li(o),this.history=new Pi(null),this.id=++Fo,this.modeOption=t,this.lineSep=r,this.direction="rtl"==i?"rtl":"ltr",this.extend=!1,"string"==typeof e&&(e=this.splitLines(e)),_i(this,{from:o,to:o,text:e}),Ji(this,Li(o),B)};No.prototype=Y(ko.prototype,{constructor:No,iter:function(e,t,n){n?this.iterN(e-this.first,t-e,n):this.iterN(this.first,this.first+this.size,e)},insert:function(e,t){for(var n=0,r=0;r<t.length;++r)n+=t[r].height;this.insertInner(e-this.first,t,n)},remove:function(e,t){this.removeInner(e-this.first,t)},getValue:function(e){var t=Ke(this,this.first,this.first+this.size);return!1===e?t:t.join(e||this.lineSeparator())},setValue:ni((function(e){var t=et(this.first,0),n=this.first+this.size-1;uo(this,{from:t,to:et(n,Ge(this,n).text.length),text:this.splitLines(e),origin:"setValue",full:!0},!0),this.cm&&Or(this.cm,0,0),Ji(this,Li(t),B)})),replaceRange:function(e,t,n,r){mo(this,e,t=st(this,t),n=n?st(this,n):t,r)},getRange:function(e,t,n){var r=Ve(this,st(this,e),st(this,t));return!1===n?r:r.join(n||this.lineSeparator())},getLine:function(e){var t=this.getLineHandle(e);return t&&t.text},getLineHandle:function(e){if(Qe(this,e))return Ge(this,e)},getLineNumber:function(e){return Ze(e)},getLineHandleVisualStart:function(e){return"number"==typeof e&&(e=Ge(this,e)),Ht(e)},lineCount:function(){return this.size},firstLine:function(){return this.first},lastLine:function(){return this.first+this.size-1},clipPos:function(e){return st(this,e)},getCursor:function(e){var t=this.sel.primary();return null==e||"head"==e?t.head:"anchor"==e?t.anchor:"end"==e||"to"==e||!1===e?t.to():t.from()},listSelections:function(){return this.sel.ranges},somethingSelected:function(){return this.sel.somethingSelected()},setCursor:ni((function(e,t,n){Yi(this,st(this,"number"==typeof 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n=Xo(t,!0);return!!n&&(t.shiftKey&&!e.state.keySeq?ll(e,"Shift-"+n,t,(function(t){return il(e,t,!0)}))||ll(e,n,t,(function(t){if("string"==typeof t?/^go[A-Z]/.test(t):t.motion)return il(e,t)})):ll(e,n,t,(function(t){return il(e,t)})))}var ul=null;function cl(e){var t=this;if(t.curOp.focus=O(),!me(t,e)){l&&s<11&&27==e.keyCode&&(e.returnValue=!1);var r=e.keyCode;t.display.shift=16==r||e.shiftKey;var i=al(t,e);h&&(ul=i?r:null,!i&&88==r&&!_e&&(x?e.metaKey:e.ctrlKey)&&t.replaceSelection("",null,"cut")),n&&!x&&!i&&46==r&&e.shiftKey&&!e.ctrlKey&&document.execCommand&&document.execCommand("cut"),18!=r||/\bCodeMirror-crosshair\b/.test(t.display.lineDiv.className)||function(e){var t=e.display.lineDiv;function n(e){18!=e.keyCode&&e.altKey||(T(t,"CodeMirror-crosshair"),fe(document,"keyup",n),fe(document,"mouseover",n))}_(t,"CodeMirror-crosshair"),he(document,"keyup",n),he(document,"mouseover",n)}(t)}}function hl(e){16==e.keyCode&&(this.doc.sel.shift=!1),me(this,e)}function dl(e){var t=this;if(!(wn(t.display,e)||me(t,e)||e.ctrlKey&&!e.altKey||x&&e.metaKey)){var n=e.keyCode,r=e.charCode;if(h&&n==ul)return ul=null,void ye(e);if(!h||e.which&&!(e.which<10)||!al(t,e)){var i=String.fromCharCode(null==r?n:r);"\b"!=i&&(function(e,t,n){return ll(e,"'"+n+"'",t,(function(t){return il(e,t,!0)}))}(t,e,i)||t.display.input.onKeyPress(e))}}}var fl,pl,ml=function(e,t,n){this.time=e,this.pos=t,this.button=n};function gl(e){var t=this,n=t.display;if(!(me(t,e)||n.activeTouch&&n.input.supportsTouch()))if(n.input.ensurePolled(),n.shift=e.shiftKey,wn(n,e))a||(n.scroller.draggable=!1,setTimeout((function(){return n.scroller.draggable=!0}),100));else if(!yl(t,e)){var r=ur(t,e),i=Se(e),o=r?function(e,t){var n=+new Date;return pl&&pl.compare(n,e,t)?(fl=pl=null,"triple"):fl&&fl.compare(n,e,t)?(pl=new ml(n,e,t),fl=null,"double"):(fl=new ml(n,e,t),pl=null,"single")}(r,i):"single";window.focus(),1==i&&t.state.selectingText&&t.state.selectingText(e),r&&function(e,t,n,r,i){var 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i=e.display,o=!1,u=ei(e,(function(t){a&&(i.scroller.draggable=!1),e.state.draggingText=!1,fe(i.wrapper.ownerDocument,"mouseup",u),fe(i.wrapper.ownerDocument,"mousemove",c),fe(i.scroller,"dragstart",h),fe(i.scroller,"drop",u),o||(ye(t),r.addNew||Ki(e.doc,n,null,null,r.extend),a||l&&9==s?setTimeout((function(){i.wrapper.ownerDocument.body.focus(),i.input.focus()}),20):i.input.focus())})),c=function(e){o=o||Math.abs(t.clientX-e.clientX)+Math.abs(t.clientY-e.clientY)>=10},h=function(){return o=!0};a&&(i.scroller.draggable=!0),e.state.draggingText=u,u.copy=!r.moveOnDrag,i.scroller.dragDrop&&i.scroller.dragDrop(),he(i.wrapper.ownerDocument,"mouseup",u),he(i.wrapper.ownerDocument,"mousemove",c),he(i.scroller,"dragstart",h),he(i.scroller,"drop",u),Cr(e),setTimeout((function(){return i.input.focus()}),20)}(e,r,t,o):function(e,t,n,r){var i=e.display,o=e.doc;ye(t);var l,s,a=o.sel,u=a.ranges;if(r.addNew&&!r.extend?(s=o.sel.contains(n),l=s>-1?u[s]:new 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y,b=l,k=vl(e,t,r.unit),w=b.anchor;tt(k.anchor,w)>0?(y=k.head,w=ot(b.from(),k.anchor)):(y=k.anchor,w=it(b.to(),k.head));var C=a.ranges.slice(0);C[s]=function(e,t){var n=t.anchor,r=t.head,i=Ge(e.doc,n.line);if(0==tt(n,r)&&n.sticky==r.sticky)return t;var o=ue(i);if(!o)return t;var l=se(o,n.ch,n.sticky),s=o[l];if(s.from!=n.ch&&s.to!=n.ch)return t;var a,u=l+(s.from==n.ch==(1!=s.level)?0:1);if(0==u||u==o.length)return t;if(r.line!=n.line)a=(r.line-n.line)*("ltr"==e.doc.direction?1:-1)>0;else{var c=se(o,r.ch,r.sticky),h=c-l||(r.ch-n.ch)*(1==s.level?-1:1);a=c==u-1||c==u?h<0:h>0}var d=o[u+(a?-1:0)],f=a==(1==d.level),p=f?d.from:d.to,m=f?"after":"before";return n.ch==p&&n.sticky==m?t:new Ci(new et(n.line,p,m),r)}(e,new Ci(st(o,w),y)),Ji(o,Si(e,C,s),$)}}var f=i.wrapper.getBoundingClientRect(),p=0;function m(t){e.state.selectingText=!1,p=1/0,t&&(ye(t),i.input.focus()),fe(i.wrapper.ownerDocument,"mousemove",g),fe(i.wrapper.ownerDocument,"mouseup",v),o.history.lastSelOrigin=null}var g=ei(e,(function(t){0!==t.buttons&&Se(t)?function t(n){var l=++p,s=ur(e,n,!0,"rectangle"==r.unit);if(s)if(0!=tt(s,h)){e.curOp.focus=O(),d(s);var a=Dr(i,o);(s.line>=a.to||s.line<a.from)&&setTimeout(ei(e,(function(){p==l&&t(n)})),150)}else{var u=n.clientY<f.top?-20:n.clientY>f.bottom?20:0;u&&setTimeout(ei(e,(function(){p==l&&(i.scroller.scrollTop+=u,t(n))})),50)}}(t):m(t)})),v=ei(e,m);e.state.selectingText=v,he(i.wrapper.ownerDocument,"mousemove",g),he(i.wrapper.ownerDocument,"mouseup",v)}(e,r,t,o)}(t,r,o,e):Ce(e)==n.scroller&&ye(e):2==i?(r&&Ki(t.doc,r),setTimeout((function(){return n.input.focus()}),20)):3==i&&(C?t.display.input.onContextMenu(e):Cr(t)))}}function vl(e,t,n){if("char"==n)return new Ci(t,t);if("word"==n)return e.findWordAt(t);if("line"==n)return new Ci(et(t.line,0),st(e.doc,et(t.line+1,0)));var r=n(e,t);return new Ci(r.from,r.to)}function xl(e,t,n,r){var i,o;if(t.touches)i=t.touches[0].clientX,o=t.touches[0].clientY;else 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n*n+r*r>400}he(t.scroller,"touchstart",(function(i){if(!me(e,i)&&!function(e){if(1!=e.touches.length)return!1;var t=e.touches[0];return t.radiusX<=1&&t.radiusY<=1}(i)&&!yl(e,i)){t.input.ensurePolled(),clearTimeout(n);var o=+new Date;t.activeTouch={start:o,moved:!1,prev:o-r.end<=300?r:null},1==i.touches.length&&(t.activeTouch.left=i.touches[0].pageX,t.activeTouch.top=i.touches[0].pageY)}})),he(t.scroller,"touchmove",(function(){t.activeTouch&&(t.activeTouch.moved=!0)})),he(t.scroller,"touchend",(function(n){var r=t.activeTouch;if(r&&!wn(t,n)&&null!=r.left&&!r.moved&&new Date-r.start<300){var l,s=e.coordsChar(t.activeTouch,"page");l=!r.prev||o(r,r.prev)?new Ci(s,s):!r.prev.prev||o(r,r.prev.prev)?e.findWordAt(s):new Ci(et(s.line,0),st(e.doc,et(s.line+1,0))),e.setSelection(l.anchor,l.head),e.focus(),ye(n)}i()})),he(t.scroller,"touchcancel",i),he(t.scroller,"scroll",(function(){t.scroller.clientHeight&&(Wr(e,t.scroller.scrollTop),Pr(e,t.scroller.scrollLeft,!0),pe(e,"scroll",e))})),he(t.scroller,"mousewheel",(function(t){return ki(e,t)})),he(t.scroller,"DOMMouseScroll",(function(t){return ki(e,t)})),he(t.wrapper,"scroll",(function(){return t.wrapper.scrollTop=t.wrapper.scrollLeft=0})),t.dragFunctions={enter:function(t){me(e,t)||we(t)},over:function(t){me(e,t)||(function(e,t){var n=ur(e,t);if(n){var r=document.createDocumentFragment();xr(e,n,r),e.display.dragCursor||(e.display.dragCursor=A("div",null,"CodeMirror-cursors CodeMirror-dragcursors"),e.display.lineSpace.insertBefore(e.display.dragCursor,e.display.cursorDiv)),D(e.display.dragCursor,r)}}(e,t),we(t))},start:function(t){return function(e,t){if(l&&(!e.state.draggingText||+new Date-Oo<100))we(t);else 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c=0;c<Dl.length;++c)Dl[c](this);Vr(this),a&&t.lineWrapping&&"optimizelegibility"==getComputedStyle(o.lineDiv).textRendering&&(o.lineDiv.style.textRendering="auto")}Ml.defaults=Cl,Ml.optionHandlers=Sl;var Dl=[];function Al(e,t,n,r){var i,o=e.doc;null==n&&(n="add"),"smart"==n&&(o.mode.indent?i=ft(e,t).state:n="prev");var l=e.options.tabSize,s=Ge(o,t),a=H(s.text,null,l);s.stateAfter&&(s.stateAfter=null);var u,c=s.text.match(/^\s*/)[0];if(r||/\S/.test(s.text)){if("smart"==n&&((u=o.mode.indent(i,s.text.slice(c.length),s.text))==j||u>150)){if(!r)return;n="prev"}}else u=0,n="not";"prev"==n?u=t>o.first?H(Ge(o,t-1).text,null,l):0:"add"==n?u=a+e.options.indentUnit:"subtract"==n?u=a-e.options.indentUnit:"number"==typeof n&&(u=a+n),u=Math.max(0,u);var h="",d=0;if(e.options.indentWithTabs)for(var f=Math.floor(u/l);f;--f)d+=l,h+="\t";if(d<u&&(h+=V(u-d)),h!=c)return mo(o,h,et(t,0),et(t,c.length),"+input"),s.stateAfter=null,!0;for(var p=0;p<o.sel.ranges.length;p++){var m=o.sel.ranges[p];if(m.head.line==t&&m.head.ch<c.length){var g=et(t,c.length);Zi(o,p,new Ci(g,g));break}}}Ml.defineInitHook=function(e){return Dl.push(e)};var Fl=null;function Nl(e){Fl=e}function Ol(e,t,n,r,i){var o=e.doc;e.display.shift=!1,r||(r=o.sel);var l=+new Date-200,s="paste"==i||e.state.pasteIncoming>l,a=Ne(t),u=null;if(s&&r.ranges.length>1)if(Fl&&Fl.text.join("\n")==t){if(r.ranges.length%Fl.text.length==0){u=[];for(var c=0;c<Fl.text.length;c++)u.push(o.splitLines(Fl.text[c]))}}else a.length==r.ranges.length&&e.options.pasteLinesPerSelection&&(u=X(a,(function(e){return[e]})));for(var h=e.curOp.updateInput,d=r.ranges.length-1;d>=0;d--){var f=r.ranges[d],p=f.from(),m=f.to();f.empty()&&(n&&n>0?p=et(p.line,p.ch-n):e.state.overwrite&&!s?m=et(m.line,Math.min(Ge(o,m.line).text.length,m.ch+K(a).length)):s&&Fl&&Fl.lineWise&&Fl.text.join("\n")==t&&(p=m=et(p.line,0)));var g={from:p,to:m,text:u?u[d%u.length]:a,origin:i||(s?"paste":e.state.cutIncoming>l?"cut":"+input")};uo(e.doc,g),an(e,"inputRead",e,g)}t&&!s&&El(e,t),Nr(e),e.curOp.updateInput<2&&(e.curOp.updateInput=h),e.curOp.typing=!0,e.state.pasteIncoming=e.state.cutIncoming=-1}function _l(e,t){var n=e.clipboardData&&e.clipboardData.getData("Text");if(n)return e.preventDefault(),t.isReadOnly()||t.options.disableInput||Jr(t,(function(){return Ol(t,n,0,null,"paste")})),!0}function El(e,t){if(e.options.electricChars&&e.options.smartIndent)for(var n=e.doc.sel,r=n.ranges.length-1;r>=0;r--){var i=n.ranges[r];if(!(i.head.ch>100||r&&n.ranges[r-1].head.line==i.head.line)){var o=e.getModeAt(i.head),l=!1;if(o.electricChars){for(var s=0;s<o.electricChars.length;s++)if(t.indexOf(o.electricChars.charAt(s))>-1){l=Al(e,i.head.line,"smart");break}}else o.electricInput&&o.electricInput.test(Ge(e.doc,i.head.line).text.slice(0,i.head.ch))&&(l=Al(e,i.head.line,"smart"));l&&an(e,"electricInput",e,i.head.line)}}}function Wl(e){for(var t=[],n=[],r=0;r<e.doc.sel.ranges.length;r++){var i=e.doc.sel.ranges[r].head.line,o={anchor:et(i,0),head:et(i+1,0)};n.push(o),t.push(e.getRange(o.anchor,o.head))}return{text:t,ranges:n}}function zl(e,t,n,r){e.setAttribute("autocorrect",n?"":"off"),e.setAttribute("autocapitalize",r?"":"off"),e.setAttribute("spellcheck",!!t)}function Pl(){var e=A("textarea",null,null,"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"),t=A("div",[e],null,"overflow: hidden; position: relative; width: 3px; height: 0px;");return a?e.style.width="1000px":e.setAttribute("wrap","off"),m&&(e.style.border="1px solid black"),zl(e),t}function Hl(e,t,n,r,i){var o=t,l=n,s=Ge(e,t.line),a=i&&"rtl"==e.direction?-n:n;function u(r){var o,l;if(null==(o=i?function(e,t,n,r){var i=ue(t,e.doc.direction);if(!i)return Jo(t,n,r);n.ch>=t.text.length?(n.ch=t.text.length,n.sticky="before"):n.ch<=0&&(n.ch=0,n.sticky="after");var o=se(i,n.ch,n.sticky),l=i[o];if("ltr"==e.doc.direction&&l.level%2==0&&(r>0?l.to>n.ch:l.from<n.ch))return Jo(t,n,r);var s,a=function(e,n){return Qo(t,e instanceof et?e.ch:e,n)},u=function(n){return e.options.lineWrapping?(s=s||On(e,t),Qn(e,t,s,n)):{begin:0,end:t.text.length}},c=u("before"==n.sticky?a(n,-1):n.ch);if("rtl"==e.doc.direction||1==l.level){var h=1==l.level==r<0,d=a(n,h?1:-1);if(null!=d&&(h?d<=l.to&&d<=c.end:d>=l.from&&d>=c.begin)){var f=h?"before":"after";return new et(n.line,d,f)}}var p=function(e,t,r){for(var o=function(e,t){return t?new et(n.line,a(e,1),"before"):new et(n.line,e,"after")};e>=0&&e<i.length;e+=t){var l=i[e],s=t>0==(1!=l.level),u=s?r.begin:a(r.end,-1);if(l.from<=u&&u<l.to)return o(u,s);if(u=s?l.from:a(l.to,-1),r.begin<=u&&u<r.end)return o(u,s)}},m=p(o+r,r,c);if(m)return m;var g=r>0?c.end:a(c.begin,-1);return null==g||r>0&&g==t.text.length||!(m=p(r>0?0:i.length-1,r,u(g)))?null:m}(e.cm,s,t,n):Jo(s,t,n))){if(r||(l=t.line+a)<e.first||l>=e.first+e.size||(t=new et(l,t.ch,t.sticky),!(s=Ge(e,l))))return!1;t=el(i,e.cm,s,t.line,a)}else t=o;return!0}if("char"==r)u();else if("column"==r)u(!0);else if("word"==r||"group"==r)for(var c=null,h="group"==r,d=e.cm&&e.cm.getHelper(t,"wordChars"),f=!0;!(n<0)||u(!f);f=!1){var p=s.text.charAt(t.ch)||"\n",m=ee(p,d)?"w":h&&"\n"==p?"n":!h||/\s/.test(p)?null:"p";if(!h||f||m||(m="s"),c&&c!=m){n<0&&(n=1,u(),t.sticky="after");break}if(m&&(c=m),n>0&&!u(!f))break}var g=oo(e,t,o,l,!0);return nt(o,g)&&(g.hitSide=!0),g}function Il(e,t,n,r){var i,o,l=e.doc,s=t.left;if("page"==r){var a=Math.min(e.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight),u=Math.max(a-.5*rr(e.display),3);i=(n>0?t.bottom:t.top)+n*u}else"line"==r&&(i=n>0?t.bottom+3:t.top-3);for(;(o=Zn(e,s,i)).outside;){if(n<0?i<=0:i>=l.height){o.hitSide=!0;break}i+=5*n}return o}var Rl=function(e){this.cm=e,this.lastAnchorNode=this.lastAnchorOffset=this.lastFocusNode=this.lastFocusOffset=null,this.polling=new I,this.composing=null,this.gracePeriod=!1,this.readDOMTimeout=null};function jl(e,t){var n=Nn(e,t.line);if(!n||n.hidden)return null;var r=Ge(e.doc,t.line),i=An(n,r,t.line),o=ue(r,e.doc.direction),l="left";o&&(l=se(o,t.ch)%2?"right":"left");var s=zn(i.map,t.ch,l);return s.offset="right"==s.collapse?s.end:s.start,s}function Bl(e,t){return t&&(e.bad=!0),e}function $l(e,t,n){var r;if(t==e.display.lineDiv){if(!(r=e.display.lineDiv.childNodes[n]))return Bl(e.clipPos(et(e.display.viewTo-1)),!0);t=null,n=0}else for(r=t;;r=r.parentNode){if(!r||r==e.display.lineDiv)return null;if(r.parentNode&&r.parentNode==e.display.lineDiv)break}for(var i=0;i<e.display.view.length;i++){var o=e.display.view[i];if(o.node==r)return ql(o,t,n)}}function ql(e,t,n){var r=e.text.firstChild,i=!1;if(!t||!N(r,t))return Bl(et(Ze(e.line),0),!0);if(t==r&&(i=!0,t=r.childNodes[n],n=0,!t)){var o=e.rest?K(e.rest):e.line;return Bl(et(Ze(o),o.text.length),i)}var l=3==t.nodeType?t:null,s=t;for(l||1!=t.childNodes.length||3!=t.firstChild.nodeType||(l=t.firstChild,n&&(n=l.nodeValue.length));s.parentNode!=r;)s=s.parentNode;var a=e.measure,u=a.maps;function c(t,n,r){for(var i=-1;i<(u?u.length:0);i++)for(var o=i<0?a.map:u[i],l=0;l<o.length;l+=3){var s=o[l+2];if(s==t||s==n){var c=Ze(i<0?e.line:e.rest[i]),h=o[l]+r;return(r<0||s!=t)&&(h=o[l+(r?1:0)]),et(c,h)}}}var h=c(l,s,n);if(h)return Bl(h,i);for(var d=s.nextSibling,f=l?l.nodeValue.length-n:0;d;d=d.nextSibling){if(h=c(d,d.firstChild,0))return Bl(et(h.line,h.ch-f),i);f+=d.textContent.length}for(var p=s.previousSibling,m=n;p;p=p.previousSibling){if(h=c(p,p.firstChild,-1))return Bl(et(h.line,h.ch+m),i);m+=p.textContent.length}}Rl.prototype.init=function(e){var t=this,n=this,r=n.cm,i=n.div=e.lineDiv;function o(e){if(!me(r,e)){if(r.somethingSelected())Nl({lineWise:!1,text:r.getSelections()}),"cut"==e.type&&r.replaceSelection("",null,"cut");else{if(!r.options.lineWiseCopyCut)return;var t=Wl(r);Nl({lineWise:!0,text:t.text}),"cut"==e.type&&r.operation((function(){r.setSelections(t.ranges,0,B),r.replaceSelection("",null,"cut")}))}if(e.clipboardData){e.clipboardData.clearData();var o=Fl.text.join("\n");if(e.clipboardData.setData("Text",o),e.clipboardData.getData("Text")==o)return void e.preventDefault()}var l=Pl(),s=l.firstChild;r.display.lineSpace.insertBefore(l,r.display.lineSpace.firstChild),s.value=Fl.text.join("\n");var a=document.activeElement;W(s),setTimeout((function(){r.display.lineSpace.removeChild(l),a.focus(),a==i&&n.showPrimarySelection()}),50)}}zl(i,r.options.spellcheck,r.options.autocorrect,r.options.autocapitalize),he(i,"paste",(function(e){me(r,e)||_l(e,r)||s<=11&&setTimeout(ei(r,(function(){return t.updateFromDOM()})),20)})),he(i,"compositionstart",(function(e){t.composing={data:e.data,done:!1}})),he(i,"compositionupdate",(function(e){t.composing||(t.composing={data:e.data,done:!1})})),he(i,"compositionend",(function(e){t.composing&&(e.data!=t.composing.data&&t.readFromDOMSoon(),t.composing.done=!0)})),he(i,"touchstart",(function(){return n.forceCompositionEnd()})),he(i,"input",(function(){t.composing||t.readFromDOMSoon()})),he(i,"copy",o),he(i,"cut",o)},Rl.prototype.prepareSelection=function(){var e=vr(this.cm,!1);return e.focus=this.cm.state.focused,e},Rl.prototype.showSelection=function(e,t){e&&this.cm.display.view.length&&((e.focus||t)&&this.showPrimarySelection(),this.showMultipleSelections(e))},Rl.prototype.getSelection=function(){return this.cm.display.wrapper.ownerDocument.getSelection()},Rl.prototype.showPrimarySelection=function(){var e=this.getSelection(),t=this.cm,r=t.doc.sel.primary(),i=r.from(),o=r.to();if(t.display.viewTo==t.display.viewFrom||i.line>=t.display.viewTo||o.line<t.display.viewFrom)e.removeAllRanges();else{var l=$l(t,e.anchorNode,e.anchorOffset),s=$l(t,e.focusNode,e.focusOffset);if(!l||l.bad||!s||s.bad||0!=tt(ot(l,s),i)||0!=tt(it(l,s),o)){var a=t.display.view,u=i.line>=t.display.viewFrom&&jl(t,i)||{node:a[0].measure.map[2],offset:0},c=o.line<t.display.viewTo&&jl(t,o);if(!c){var h=a[a.length-1].measure,d=h.maps?h.maps[h.maps.length-1]:h.map;c={node:d[d.length-1],offset:d[d.length-2]-d[d.length-3]}}if(u&&c){var f,p=e.rangeCount&&e.getRangeAt(0);try{f=L(u.node,u.offset,c.offset,c.node)}catch(e){}f&&(!n&&t.state.focused?(e.collapse(u.node,u.offset),f.collapsed||(e.removeAllRanges(),e.addRange(f))):(e.removeAllRanges(),e.addRange(f)),p&&null==e.anchorNode?e.addRange(p):n&&this.startGracePeriod()),this.rememberSelection()}else e.removeAllRanges()}}},Rl.prototype.startGracePeriod=function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout((function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation((function(){return e.cm.curOp.selectionChanged=!0}))}),20)},Rl.prototype.showMultipleSelections=function(e){D(this.cm.display.cursorDiv,e.cursors),D(this.cm.display.selectionDiv,e.selection)},Rl.prototype.rememberSelection=function(){var e=this.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},Rl.prototype.selectionInEditor=function(){var e=this.getSelection();if(!e.rangeCount)return!1;var t=e.getRangeAt(0).commonAncestorContainer;return N(this.div,t)},Rl.prototype.focus=function(){"nocursor"!=this.cm.options.readOnly&&(this.selectionInEditor()||this.showSelection(this.prepareSelection(),!0),this.div.focus())},Rl.prototype.blur=function(){this.div.blur()},Rl.prototype.getField=function(){return this.div},Rl.prototype.supportsTouch=function(){return!0},Rl.prototype.receivedFocus=function(){var e=this;this.selectionInEditor()?this.pollSelection():Jr(this.cm,(function(){return e.cm.curOp.selectionChanged=!0})),this.polling.set(this.cm.options.pollInterval,(function t(){e.cm.state.focused&&(e.pollSelection(),e.polling.set(e.cm.options.pollInterval,t))}))},Rl.prototype.selectionChanged=function(){var e=this.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},Rl.prototype.pollSelection=function(){if(null==this.readDOMTimeout&&!this.gracePeriod&&this.selectionChanged()){var e=this.getSelection(),t=this.cm;if(g&&c&&this.cm.display.gutterSpecs.length&&function(e){for(var t=e;t;t=t.parentNode)if(/CodeMirror-gutter-wrapper/.test(t.className))return!0;return!1}(e.anchorNode))return this.cm.triggerOnKeyDown({type:"keydown",keyCode:8,preventDefault:Math.abs}),this.blur(),void this.focus();if(!this.composing){this.rememberSelection();var n=$l(t,e.anchorNode,e.anchorOffset),r=$l(t,e.focusNode,e.focusOffset);n&&r&&Jr(t,(function(){Ji(t.doc,Li(n,r),B),(n.bad||r.bad)&&(t.curOp.selectionChanged=!0)}))}}},Rl.prototype.pollContent=function(){null!=this.readDOMTimeout&&(clearTimeout(this.readDOMTimeout),this.readDOMTimeout=null);var e,t,n,r=this.cm,i=r.display,o=r.doc.sel.primary(),l=o.from(),s=o.to();if(0==l.ch&&l.line>r.firstLine()&&(l=et(l.line-1,Ge(r.doc,l.line-1).length)),s.ch==Ge(r.doc,s.line).text.length&&s.line<r.lastLine()&&(s=et(s.line+1,0)),l.line<i.viewFrom||s.line>i.viewTo-1)return!1;l.line==i.viewFrom||0==(e=cr(r,l.line))?(t=Ze(i.view[0].line),n=i.view[0].node):(t=Ze(i.view[e].line),n=i.view[e-1].node.nextSibling);var a,u,c=cr(r,s.line);if(c==i.view.length-1?(a=i.viewTo-1,u=i.lineDiv.lastChild):(a=Ze(i.view[c+1].line)-1,u=i.view[c+1].node.previousSibling),!n)return!1;for(var h=r.doc.splitLines(function(e,t,n,r,i){var o="",l=!1,s=e.doc.lineSeparator(),a=!1;function u(){l&&(o+=s,a&&(o+=s),l=a=!1)}function c(e){e&&(u(),o+=e)}function h(t){if(1==t.nodeType){var n=t.getAttribute("cm-text");if(n)return void c(n);var o,d=t.getAttribute("cm-marker");if(d){var f=e.findMarks(et(r,0),et(i+1,0),(g=+d,function(e){return e.id==g}));return void(f.length&&(o=f[0].find(0))&&c(Ve(e.doc,o.from,o.to).join(s)))}if("false"==t.getAttribute("contenteditable"))return;var p=/^(pre|div|p|li|table|br)$/i.test(t.nodeName);if(!/^br$/i.test(t.nodeName)&&0==t.textContent.length)return;p&&u();for(var m=0;m<t.childNodes.length;m++)h(t.childNodes[m]);/^(pre|p)$/i.test(t.nodeName)&&(a=!0),p&&(l=!0)}else 3==t.nodeType&&c(t.nodeValue.replace(/\u200b/g,"").replace(/\u00a0/g," "));var g}for(;h(t),t!=n;)t=t.nextSibling,a=!1;return o}(r,n,u,t,a)),d=Ve(r.doc,et(t,0),et(a,Ge(r.doc,a).text.length));h.length>1&&d.length>1;)if(K(h)==K(d))h.pop(),d.pop(),a--;else{if(h[0]!=d[0])break;h.shift(),d.shift(),t++}for(var f=0,p=0,m=h[0],g=d[0],v=Math.min(m.length,g.length);f<v&&m.charCodeAt(f)==g.charCodeAt(f);)++f;for(var x=K(h),y=K(d),b=Math.min(x.length-(1==h.length?f:0),y.length-(1==d.length?f:0));p<b&&x.charCodeAt(x.length-p-1)==y.charCodeAt(y.length-p-1);)++p;if(1==h.length&&1==d.length&&t==l.line)for(;f&&f>l.ch&&x.charCodeAt(x.length-p-1)==y.charCodeAt(y.length-p-1);)f--,p++;h[h.length-1]=x.slice(0,x.length-p).replace(/^\u200b+/,""),h[0]=h[0].slice(f).replace(/\u200b+$/,"");var k=et(t,f),w=et(a,d.length?K(d).length-p:0);return h.length>1||h[0]||tt(k,w)?(mo(r.doc,h,k,w,"+input"),!0):void 0},Rl.prototype.ensurePolled=function(){this.forceCompositionEnd()},Rl.prototype.reset=function(){this.forceCompositionEnd()},Rl.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},Rl.prototype.readFromDOMSoon=function(){var e=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout((function(){if(e.readDOMTimeout=null,e.composing){if(!e.composing.done)return;e.composing=null}e.updateFromDOM()}),80))},Rl.prototype.updateFromDOM=function(){var e=this;!this.cm.isReadOnly()&&this.pollContent()||Jr(this.cm,(function(){return hr(e.cm)}))},Rl.prototype.setUneditable=function(e){e.contentEditable="false"},Rl.prototype.onKeyPress=function(e){0==e.charCode||this.composing||(e.preventDefault(),this.cm.isReadOnly()||ei(this.cm,Ol)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0))},Rl.prototype.readOnlyChanged=function(e){this.div.contentEditable=String("nocursor"!=e)},Rl.prototype.onContextMenu=function(){},Rl.prototype.resetPosition=function(){},Rl.prototype.needsContentAttribute=!0;var Ul=function(e){this.cm=e,this.prevInput="",this.pollingFast=!1,this.polling=new I,this.hasSelection=!1,this.composing=null};Ul.prototype.init=function(e){var t=this,n=this,r=this.cm;this.createField(e);var i=this.textarea;function o(e){if(!me(r,e)){if(r.somethingSelected())Nl({lineWise:!1,text:r.getSelections()});else{if(!r.options.lineWiseCopyCut)return;var t=Wl(r);Nl({lineWise:!0,text:t.text}),"cut"==e.type?r.setSelections(t.ranges,null,B):(n.prevInput="",i.value=t.text.join("\n"),W(i))}"cut"==e.type&&(r.state.cutIncoming=+new Date)}}e.wrapper.insertBefore(this.wrapper,e.wrapper.firstChild),m&&(i.style.width="0px"),he(i,"input",(function(){l&&s>=9&&t.hasSelection&&(t.hasSelection=null),n.poll()})),he(i,"paste",(function(e){me(r,e)||_l(e,r)||(r.state.pasteIncoming=+new Date,n.fastPoll())})),he(i,"cut",o),he(i,"copy",o),he(e.scroller,"paste",(function(t){if(!wn(e,t)&&!me(r,t)){if(!i.dispatchEvent)return r.state.pasteIncoming=+new Date,void n.focus();var o=new Event("paste");o.clipboardData=t.clipboardData,i.dispatchEvent(o)}})),he(e.lineSpace,"selectstart",(function(t){wn(e,t)||ye(t)})),he(i,"compositionstart",(function(){var e=r.getCursor("from");n.composing&&n.composing.range.clear(),n.composing={start:e,range:r.markText(e,r.getCursor("to"),{className:"CodeMirror-composing"})}})),he(i,"compositionend",(function(){n.composing&&(n.poll(),n.composing.range.clear(),n.composing=null)}))},Ul.prototype.createField=function(e){this.wrapper=Pl(),this.textarea=this.wrapper.firstChild},Ul.prototype.prepareSelection=function(){var e=this.cm,t=e.display,n=e.doc,r=vr(e);if(e.options.moveInputWithCursor){var i=Vn(e,n.sel.primary().head,"div"),o=t.wrapper.getBoundingClientRect(),l=t.lineDiv.getBoundingClientRect();r.teTop=Math.max(0,Math.min(t.wrapper.clientHeight-10,i.top+l.top-o.top)),r.teLeft=Math.max(0,Math.min(t.wrapper.clientWidth-10,i.left+l.left-o.left))}return r},Ul.prototype.showSelection=function(e){var t=this.cm.display;D(t.cursorDiv,e.cursors),D(t.selectionDiv,e.selection),null!=e.teTop&&(this.wrapper.style.top=e.teTop+"px",this.wrapper.style.left=e.teLeft+"px")},Ul.prototype.reset=function(e){if(!this.contextMenuPending&&!this.composing){var t=this.cm;if(t.somethingSelected()){this.prevInput="";var n=t.getSelection();this.textarea.value=n,t.state.focused&&W(this.textarea),l&&s>=9&&(this.hasSelection=n)}else e||(this.prevInput=this.textarea.value="",l&&s>=9&&(this.hasSelection=null))}},Ul.prototype.getField=function(){return this.textarea},Ul.prototype.supportsTouch=function(){return!1},Ul.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!v||O()!=this.textarea))try{this.textarea.focus()}catch(e){}},Ul.prototype.blur=function(){this.textarea.blur()},Ul.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},Ul.prototype.receivedFocus=function(){this.slowPoll()},Ul.prototype.slowPoll=function(){var e=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,(function(){e.poll(),e.cm.state.focused&&e.slowPoll()}))},Ul.prototype.fastPoll=function(){var e=!1,t=this;t.pollingFast=!0,t.polling.set(20,(function n(){t.poll()||e?(t.pollingFast=!1,t.slowPoll()):(e=!0,t.polling.set(60,n))}))},Ul.prototype.poll=function(){var e=this,t=this.cm,n=this.textarea,r=this.prevInput;if(this.contextMenuPending||!t.state.focused||Oe(n)&&!r&&!this.composing||t.isReadOnly()||t.options.disableInput||t.state.keySeq)return!1;var i=n.value;if(i==r&&!t.somethingSelected())return!1;if(l&&s>=9&&this.hasSelection===i||x&&/[\uf700-\uf7ff]/.test(i))return t.display.input.reset(),!1;if(t.doc.sel==t.display.selForContextMenu){var o=i.charCodeAt(0);if(8203!=o||r||(r="​"),8666==o)return this.reset(),this.cm.execCommand("undo")}for(var a=0,u=Math.min(r.length,i.length);a<u&&r.charCodeAt(a)==i.charCodeAt(a);)++a;return Jr(t,(function(){Ol(t,i.slice(a),r.length-a,null,e.composing?"*compose":null),i.length>1e3||i.indexOf("\n")>-1?n.value=e.prevInput="":e.prevInput=i,e.composing&&(e.composing.range.clear(),e.composing.range=t.markText(e.composing.start,t.getCursor("to"),{className:"CodeMirror-composing"}))})),!0},Ul.prototype.ensurePolled=function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},Ul.prototype.onKeyPress=function(){l&&s>=9&&(this.hasSelection=null),this.fastPoll()},Ul.prototype.onContextMenu=function(e){var t=this,n=t.cm,r=n.display,i=t.textarea;t.contextMenuPending&&t.contextMenuPending();var o=ur(n,e),u=r.scroller.scrollTop;if(o&&!h){n.options.resetSelectionOnContextMenu&&-1==n.doc.sel.contains(o)&&ei(n,Ji)(n.doc,Li(o),B);var c,d=i.style.cssText,f=t.wrapper.style.cssText,p=t.wrapper.offsetParent.getBoundingClientRect();if(t.wrapper.style.cssText="position: static",i.style.cssText="position: absolute; width: 30px; height: 30px;\n      top: "+(e.clientY-p.top-5)+"px; left: "+(e.clientX-p.left-5)+"px;\n      z-index: 1000; background: "+(l?"rgba(255, 255, 255, .05)":"transparent")+";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",a&&(c=window.scrollY),r.input.focus(),a&&window.scrollTo(null,c),r.input.reset(),n.somethingSelected()||(i.value=t.prevInput=" "),t.contextMenuPending=v,r.selForContextMenu=n.doc.sel,clearTimeout(r.detectingSelectAll),l&&s>=9&&g(),C){we(e);var m=function(){fe(window,"mouseup",m),setTimeout(v,20)};he(window,"mouseup",m)}else setTimeout(v,50)}function g(){if(null!=i.selectionStart){var e=n.somethingSelected(),o="​"+(e?i.value:"");i.value="⇚",i.value=o,t.prevInput=e?"":"​",i.selectionStart=1,i.selectionEnd=o.length,r.selForContextMenu=n.doc.sel}}function v(){if(t.contextMenuPending==v&&(t.contextMenuPending=!1,t.wrapper.style.cssText=f,i.style.cssText=d,l&&s<9&&r.scrollbars.setScrollTop(r.scroller.scrollTop=u),null!=i.selectionStart)){(!l||l&&s<9)&&g();var e=0,o=function(){r.selForContextMenu==n.doc.sel&&0==i.selectionStart&&i.selectionEnd>0&&"​"==t.prevInput?ei(n,so)(n):e++<10?r.detectingSelectAll=setTimeout(o,500):(r.selForContextMenu=null,r.input.reset())};r.detectingSelectAll=setTimeout(o,200)}}},Ul.prototype.readOnlyChanged=function(e){e||this.reset(),this.textarea.disabled="nocursor"==e},Ul.prototype.setUneditable=function(){},Ul.prototype.needsContentAttribute=!1,function(e){var t=e.optionHandlers;function n(n,r,i,o){e.defaults[n]=r,i&&(t[n]=o?function(e,t,n){n!=wl&&i(e,t,n)}:i)}e.defineOption=n,e.Init=wl,n("value","",(function(e,t){return e.setValue(t)}),!0),n("mode",null,(function(e,t){e.doc.modeOption=t,Fi(e)}),!0),n("indentUnit",2,Fi,!0),n("indentWithTabs",!1),n("smartIndent",!0),n("tabSize",4,(function(e){Ni(e),Rn(e),hr(e)}),!0),n("lineSeparator",null,(function(e,t){if(e.doc.lineSep=t,t){var n=[],r=e.doc.first;e.doc.iter((function(e){for(var i=0;;){var o=e.text.indexOf(t,i);if(-1==o)break;i=o+t.length,n.push(et(r,o))}r++}));for(var i=n.length-1;i>=0;i--)mo(e.doc,t,n[i],et(n[i].line,n[i].ch+t.length))}})),n("specialChars",/[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g,(function(e,t,n){e.state.specialChars=new RegExp(t.source+(t.test("\t")?"":"|\t"),"g"),n!=wl&&e.refresh()})),n("specialCharPlaceholder",Qt,(function(e){return e.refresh()}),!0),n("electricChars",!0),n("inputStyle",v?"contenteditable":"textarea",(function(){throw new Error("inputStyle can not (yet) be changed in a running editor")}),!0),n("spellcheck",!1,(function(e,t){return e.getInputField().spellcheck=t}),!0),n("autocorrect",!1,(function(e,t){return e.getInputField().autocorrect=t}),!0),n("autocapitalize",!1,(function(e,t){return e.getInputField().autocapitalize=t}),!0),n("rtlMoveVisually",!b),n("wholeLineUpdateBefore",!0),n("theme","default",(function(e){kl(e),mi(e)}),!0),n("keyMap","default",(function(e,t,n){var r=Zo(t),i=n!=wl&&Zo(n);i&&i.detach&&i.detach(e,r),r.attach&&r.attach(e,i||null)})),n("extraKeys",null),n("configureMouse",null),n("lineWrapping",!1,Tl,!0),n("gutters",[],(function(e,t){e.display.gutterSpecs=fi(t,e.options.lineNumbers),mi(e)}),!0),n("fixedGutter",!0,(function(e,t){e.display.gutters.style.left=t?lr(e.display)+"px":"0",e.refresh()}),!0),n("coverGutterNextToScrollbar",!1,(function(e){return jr(e)}),!0),n("scrollbarStyle","native",(function(e){qr(e),jr(e),e.display.scrollbars.setScrollTop(e.doc.scrollTop),e.display.scrollbars.setScrollLeft(e.doc.scrollLeft)}),!0),n("lineNumbers",!1,(function(e,t){e.display.gutterSpecs=fi(e.options.gutters,t),mi(e)}),!0),n("firstLineNumber",1,mi,!0),n("lineNumberFormatter",(function(e){return e}),mi,!0),n("showCursorWhenSelecting",!1,gr,!0),n("resetSelectionOnContextMenu",!0),n("lineWiseCopyCut",!0),n("pasteLinesPerSelection",!0),n("selectionsMayTouch",!1),n("readOnly",!1,(function(e,t){"nocursor"==t&&(Lr(e),e.display.input.blur()),e.display.input.readOnlyChanged(t)})),n("disableInput",!1,(function(e,t){t||e.display.input.reset()}),!0),n("dragDrop",!0,Ll),n("allowDropFileTypes",null),n("cursorBlinkRate",530),n("cursorScrollMargin",0),n("cursorHeight",1,gr,!0),n("singleCursorHeightPerLine",!0,gr,!0),n("workTime",100),n("workDelay",100),n("flattenSpans",!0,Ni,!0),n("addModeClass",!1,Ni,!0),n("pollInterval",100),n("undoDepth",200,(function(e,t){return e.doc.history.undoDepth=t})),n("historyEventDelay",1250),n("viewportMargin",10,(function(e){return e.refresh()}),!0),n("maxHighlightLength",1e4,Ni,!0),n("moveInputWithCursor",!0,(function(e,t){t||e.display.input.resetPosition()})),n("tabindex",null,(function(e,t){return e.display.input.getField().tabIndex=t||""})),n("autofocus",null),n("direction","ltr",(function(e,t){return e.doc.setDirection(t)}),!0),n("phrases",null)}(Ml),function(e){var t=e.optionHandlers,n=e.helpers={};e.prototype={constructor:e,focus:function(){window.focus(),this.display.input.focus()},setOption:function(e,n){var r=this.options,i=r[e];r[e]==n&&"mode"!=e||(r[e]=n,t.hasOwnProperty(e)&&ei(this,t[e])(this,n,i),pe(this,"optionChange",this,e))},getOption:function(e){return this.options[e]},getDoc:function(){return this.doc},addKeyMap:function(e,t){this.state.keyMaps[t?"push":"unshift"](Zo(e))},removeKeyMap:function(e){for(var t=this.state.keyMaps,n=0;n<t.length;++n)if(t[n]==e||t[n].name==e)return t.splice(n,1),!0},addOverlay:ti((function(t,n){var r=t.token?t:e.getMode(this.options,t);if(r.startState)throw new Error("Overlays may not be stateful.");!function(e,t,n){for(var r=0,i=n(t);r<e.length&&n(e[r])<=i;)r++;e.splice(r,0,t)}(this.state.overlays,{mode:r,modeSpec:t,opaque:n&&n.opaque,priority:n&&n.priority||0},(function(e){return e.priority})),this.state.modeGen++,hr(this)})),removeOverlay:ti((function(e){for(var t=this.state.overlays,n=0;n<t.length;++n){var r=t[n].modeSpec;if(r==e||"string"==typeof e&&r.name==e)return t.splice(n,1),this.state.modeGen++,void hr(this)}})),indentLine:ti((function(e,t,n){"string"!=typeof t&&"number"!=typeof t&&(t=null==t?this.options.smartIndent?"smart":"prev":t?"add":"subtract"),Qe(this.doc,e)&&Al(this,e,t,n)})),indentSelection:ti((function(e){for(var t=this.doc.sel.ranges,n=-1,r=0;r<t.length;r++){var i=t[r];if(i.empty())i.head.line>n&&(Al(this,i.head.line,e,!0),n=i.head.line,r==this.doc.sel.primIndex&&Nr(this));else{var o=i.from(),l=i.to(),s=Math.max(n,o.line);n=Math.min(this.lastLine(),l.line-(l.ch?0:1))+1;for(var a=s;a<n;++a)Al(this,a,e);var u=this.doc.sel.ranges;0==o.ch&&t.length==u.length&&u[r].from().ch>0&&Zi(this.doc,r,new Ci(o,u[r].to()),B)}}})),getTokenAt:function(e,t){return xt(this,e,t)},getLineTokens:function(e,t){return xt(this,et(e),t,!0)},getTokenTypeAt:function(e){e=st(this.doc,e);var t,n=dt(this,Ge(this.doc,e.line)),r=0,i=(n.length-1)/2,o=e.ch;if(0==o)t=n[2];else for(;;){var l=r+i>>1;if((l?n[2*l-1]:0)>=o)i=l;else{if(!(n[2*l+1]<o)){t=n[2*l+2];break}r=l+1}}var s=t?t.indexOf("overlay "):-1;return s<0?t:0==s?null:t.slice(0,s-1)},getModeAt:function(t){var n=this.doc.mode;return n.innerMode?e.innerMode(n,this.getTokenAt(t).state).mode:n},getHelper:function(e,t){return this.getHelpers(e,t)[0]},getHelpers:function(e,t){var r=[];if(!n.hasOwnProperty(t))return r;var i=n[t],o=this.getModeAt(e);if("string"==typeof o[t])i[o[t]]&&r.push(i[o[t]]);else if(o[t])for(var l=0;l<o[t].length;l++){var s=i[o[t][l]];s&&r.push(s)}else o.helperType&&i[o.helperType]?r.push(i[o.helperType]):i[o.name]&&r.push(i[o.name]);for(var a=0;a<i._global.length;a++){var u=i._global[a];u.pred(o,this)&&-1==R(r,u.val)&&r.push(u.val)}return r},getStateAfter:function(e,t){var n=this.doc;return ft(this,(e=lt(n,null==e?n.first+n.size-1:e))+1,t).state},cursorCoords:function(e,t){var n=this.doc.sel.primary();return Vn(this,null==e?n.head:"object"==typeof e?st(this.doc,e):e?n.from():n.to(),t||"page")},charCoords:function(e,t){return Gn(this,st(this.doc,e),t||"page")},coordsChar:function(e,t){return Zn(this,(e=Un(this,e,t||"page")).left,e.top)},lineAtHeight:function(e,t){return e=Un(this,{top:e,left:0},t||"page").top,Ye(this.doc,e+this.display.viewOffset)},heightAtLine:function(e,t,n){var r,i=!1;if("number"==typeof e){var o=this.doc.first+this.doc.size-1;e<this.doc.first?e=this.doc.first:e>o&&(e=o,i=!0),r=Ge(this.doc,e)}else r=e;return qn(this,r,{top:0,left:0},t||"page",n||i).top+(i?this.doc.height-$t(r):0)},defaultTextHeight:function(){return rr(this.display)},defaultCharWidth:function(){return ir(this.display)},getViewport:function(){return{from:this.display.viewFrom,to:this.display.viewTo}},addWidget:function(e,t,n,r,i){var o,l,s,a=this.display,u=(e=Vn(this,st(this.doc,e))).bottom,c=e.left;if(t.style.position="absolute",t.setAttribute("cm-ignore-events","true"),this.display.input.setUneditable(t),a.sizer.appendChild(t),"over"==r)u=e.top;else if("above"==r||"near"==r){var h=Math.max(a.wrapper.clientHeight,this.doc.height),d=Math.max(a.sizer.clientWidth,a.lineSpace.clientWidth);("above"==r||e.bottom+t.offsetHeight>h)&&e.top>t.offsetHeight?u=e.top-t.offsetHeight:e.bottom+t.offsetHeight<=h&&(u=e.bottom),c+t.offsetWidth>d&&(c=d-t.offsetWidth)}t.style.top=u+"px",t.style.left=t.style.right="","right"==i?(c=a.sizer.clientWidth-t.offsetWidth,t.style.right="0px"):("left"==i?c=0:"middle"==i&&(c=(a.sizer.clientWidth-t.offsetWidth)/2),t.style.left=c+"px"),n&&(o=this,l={left:c,top:u,right:c+t.offsetWidth,bottom:u+t.offsetHeight},null!=(s=Ar(o,l)).scrollTop&&Wr(o,s.scrollTop),null!=s.scrollLeft&&Pr(o,s.scrollLeft))},triggerOnKeyDown:ti(cl),triggerOnKeyPress:ti(dl),triggerOnKeyUp:hl,triggerOnMouseDown:ti(gl),execCommand:function(e){if(tl.hasOwnProperty(e))return tl[e].call(null,this)},triggerElectric:ti((function(e){El(this,e)})),findPosH:function(e,t,n,r){var i=1;t<0&&(i=-1,t=-t);for(var o=st(this.doc,e),l=0;l<t&&!(o=Hl(this.doc,o,i,n,r)).hitSide;++l);return o},moveH:ti((function(e,t){var n=this;this.extendSelectionsBy((function(r){return n.display.shift||n.doc.extend||r.empty()?Hl(n.doc,r.head,e,t,n.options.rtlMoveVisually):e<0?r.from():r.to()}),q)})),deleteH:ti((function(e,t){var n=this.doc.sel,r=this.doc;n.somethingSelected()?r.replaceSelection("",null,"+delete"):Yo(this,(function(n){var i=Hl(r,n.head,e,t,!1);return e<0?{from:i,to:n.head}:{from:n.head,to:i}}))})),findPosV:function(e,t,n,r){var i=1,o=r;t<0&&(i=-1,t=-t);for(var l=st(this.doc,e),s=0;s<t;++s){var a=Vn(this,l,"div");if(null==o?o=a.left:a.left=o,(l=Il(this,a,i,n)).hitSide)break}return l},moveV:ti((function(e,t){var n=this,r=this.doc,i=[],o=!this.display.shift&&!r.extend&&r.sel.somethingSelected();if(r.extendSelectionsBy((function(l){if(o)return e<0?l.from():l.to();var s=Vn(n,l.head,"div");null!=l.goalColumn&&(s.left=l.goalColumn),i.push(s.left);var a=Il(n,s,e,t);return"page"==t&&l==r.sel.primary()&&Fr(n,Gn(n,a,"div").top-s.top),a}),q),i.length)for(var l=0;l<r.sel.ranges.length;l++)r.sel.ranges[l].goalColumn=i[l]})),findWordAt:function(e){var t=Ge(this.doc,e.line).text,n=e.ch,r=e.ch;if(t){var i=this.getHelper(e,"wordChars");"before"!=e.sticky&&r!=t.length||!n?++r:--n;for(var o=t.charAt(n),l=ee(o,i)?function(e){return ee(e,i)}:/\s/.test(o)?function(e){return/\s/.test(e)}:function(e){return!/\s/.test(e)&&!ee(e)};n>0&&l(t.charAt(n-1));)--n;for(;r<t.length&&l(t.charAt(r));)++r}return new Ci(et(e.line,n),et(e.line,r))},toggleOverwrite:function(e){null!=e&&e==this.state.overwrite||((this.state.overwrite=!this.state.overwrite)?_(this.display.cursorDiv,"CodeMirror-overwrite"):T(this.display.cursorDiv,"CodeMirror-overwrite"),pe(this,"overwriteToggle",this,this.state.overwrite))},hasFocus:function(){return this.display.input.getField()==O()},isReadOnly:function(){return!(!this.options.readOnly&&!this.doc.cantEdit)},scrollTo:ti((function(e,t){Or(this,e,t)})),getScrollInfo:function(){var 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if(t&&(a=this.rules.paragraph.exec(e)))e=e.substring(a[0].length),this.tokens.push({type:"paragraph",text:"\n"===a[1].charAt(a[1].length-1)?a[1].slice(0,-1):a[1]});else if(a=this.rules.text.exec(e))e=e.substring(a[0].length),this.tokens.push({type:"text",text:a[0]});else if(e)throw new Error("Infinite loop on byte: "+e.charCodeAt(0));return this.tokens}}},function(e,t,n){const r=n(3),i=n(6),o=n(7),l=n(8),{defaults:s}=n(2),{merge:a,unescape:u}=n(1);e.exports=class e{constructor(e){this.tokens=[],this.token=null,this.options=e||s,this.options.renderer=this.options.renderer||new r,this.renderer=this.options.renderer,this.renderer.options=this.options,this.slugger=new i}static parse(t,n){return new e(n).parse(t)}parse(e){this.inline=new o(e.links,this.options),this.inlineText=new o(e.links,a({},this.options,{renderer:new l})),this.tokens=e.reverse();let t="";for(;this.next();)t+=this.tok();return t}next(){return this.token=this.tokens.pop(),this.token}peek(){return 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e=this.$createElement,t=this._self._c||e;return t("footer",[t("p",[t("a",{staticClass:"social-icon",attrs:{href:"https://github.com/nasa8x/v-markdown-editor",target:"_blank"}},[t("i",{staticClass:"fa-3x fab fa-github-square"})])]),this._v(" "),t("p",[this._v("Themed by "),t("a",{attrs:{href:"http://on.morioh.net/96d5d36367",target:"_blank"}},[this._v("Morioh Theme")]),t("br"),this._v("\n            Made Love by "),t("a",{attrs:{href:"https://morioh.com/@5c22e47440738156a7078a19"}},[this._v("Nasa8x")])])])}],!1,null,null,null).exports,l=n(9),s=n.n(l);i.a.use(s.a),new i.a({el:"#app",render:function(e){return e(o)}})}]);
\ No newline at end of file
diff --git a/dist/www/css/app.css b/dist/www/css/app.css
index 2f44d24..76830bf 100644
--- a/dist/www/css/app.css
+++ b/dist/www/css/app.css
@@ -1,6 +1,6 @@
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+html,body{background-color:#fefefe;display:flex;flex-direction:column;height:100%;margin:0}header{margin-top:65px;text-align:center;padding:6px}header h1{text-align:center;margin:0 0 5px 0;font-weight:900;font-size:4rem;color:#34495e;font-family:'Hammersmith One', sans-serif}header h4{color:#9E9E9E;text-align:center;margin:0 0 35px 0;font-weight:400;font-size:24px;font-family:'Athiti', sans-serif}main{max-width:525px;width:100%;padding-top:34px;margin:auto;height:410px;font-size:1rem;padding-bottom:79px}a{text-decoration:none;color:#34495e}p{word-spacing:0.05em}footer{padding:30px 0;color:#fff;text-align:center;font-weight:300;font-family:'Roboto', sans-serif;background:#34495e;font-size:0.9rem;width:100%;bottom:0;left:0}footer .social-icon{margin:0 7px}footer .social-icon svg{width:30px;height:30px}a:hover,footer .social-icon svg:hover{opacity:0.6}footer a{font-weight:400;color:#fff}footer img{height:50px;margin-right:8px}code[data-lang],pre[data-lang],pre[data-lang] code{text-shadow:0 1px rgba(255,255,255,0.3);direction:ltr;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;word-wrap:normal;line-height:1.5;-moz-tab-size:3;-o-tab-size:3;tab-size:3;-webkit-hyphens:none;-ms-hyphens:none;hyphens:none;border:none}pre[data-lang]{padding:1em;margin:.5em 0;overflow:auto;border-radius:.3em}:not(pre)>code[data-lang],pre[data-lang]{background:#eee}:not(pre)>code[data-lang]{padding:.1em;border-radius:.3em;white-space:normal}
 
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diff --git a/dist/www/css/app.css.map b/dist/www/css/app.css.map
index bc395ff..7227a79 100644
--- a/dist/www/css/app.css.map
+++ b/dist/www/css/app.css.map
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body {\n  background-color: #fefefe;\n  display: -webkit-box;\n  display: flex;\n  -webkit-box-orient: vertical;\n  -webkit-box-direction: normal;\n  flex-direction: column;\n  height: 100%;\n  margin: 0; }\n\nheader {\n  margin-top: 65px;\n  text-align: center;\n  padding: 6px; }\n\nheader h1 {\n  text-align: center;\n  margin: 0 0 5px 0;\n  font-weight: 900;\n  font-size: 4rem;\n  color: #34495e;\n  font-family: 'Hammersmith One', sans-serif; }\n\nheader h4 {\n  color: #9E9E9E;\n  text-align: center;\n  margin: 0 0 35px 0;\n  font-weight: 400;\n  font-size: 24px;\n  font-family: 'Athiti', sans-serif; }\n\nmain {\n  max-width: 525px;\n  width: 100%;\n  padding-top: 34px;\n  margin: auto;\n  height: 410px;\n  font-size: 1rem;\n  padding-bottom: 79px; }\n\na {\n  text-decoration: none;\n  color: #34495e; }\n\np {\n  word-spacing: 0.05em; }\n\nfooter {\n  padding: 30px 0;\n  color: #fff;\n  text-align: center;\n  font-weight: 300;\n  font-family: 'Roboto', sans-serif;\n  background: #34495e;\n  font-size: 0.9rem;\n  width: 100%;\n  bottom: 0;\n  left: 0; }\n\nfooter .social-icon {\n  margin: 0 7px; }\n\nfooter .social-icon svg {\n  width: 30px;\n  height: 30px; }\n\na:hover, footer .social-icon svg:hover {\n  opacity: 0.6; }\n\nfooter a {\n  font-weight: 400;\n  color: #fff; }\n\nfooter img {\n  height: 50px;\n  margin-right: 8px; }\n\ncode[data-lang], pre[data-lang], pre[data-lang] code {\n  text-shadow: 0 1px rgba(255, 255, 255, 0.3);\n  direction: ltr;\n  text-align: left;\n  white-space: pre;\n  word-spacing: normal;\n  word-break: normal;\n  word-wrap: normal;\n  line-height: 1.5;\n  -moz-tab-size: 3;\n  -o-tab-size: 3;\n  tab-size: 3;\n  -webkit-hyphens: none;\n  -ms-hyphens: none;\n  hyphens: none;\n  border: none; }\n\npre[data-lang] {\n  padding: 1em;\n  margin: .5em 0;\n  overflow: auto;\n  border-radius: .3em; }\n\n:not(pre) > code[data-lang], pre[data-lang] {\n  background: #eee; }\n\n:not(pre) > code[data-lang] {\n  padding: .1em;\n  border-radius: .3em;\n  white-space: normal; }\n","/* BASICS */\n.CodeMirror {\n  /* Set height, width, borders, and global font properties here */\n  font-family: monospace;\n  height: 300px;\n  color: black;\n  direction: ltr; }\n\n/* PADDING */\n.CodeMirror-lines {\n  padding: 4px 0;\n  /* Vertical padding around content */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  padding: 0 4px;\n  /* Horizontal padding of content */ }\n\n.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n  background-color: white;\n  /* The little square between H and V scrollbars */ }\n\n/* GUTTER */\n.CodeMirror-gutters {\n  border-right: 1px solid #ddd;\n  background-color: #f7f7f7;\n  white-space: nowrap; }\n\n.CodeMirror-linenumber {\n  padding: 0 3px 0 5px;\n  min-width: 20px;\n  text-align: right;\n  color: #999;\n  white-space: nowrap; }\n\n.CodeMirror-guttermarker {\n  color: black; }\n\n.CodeMirror-guttermarker-subtle {\n  color: #999; }\n\n/* CURSOR */\n.CodeMirror-cursor {\n  border-left: 1px solid black;\n  border-right: none;\n  width: 0; }\n\n/* Shown when moving in bi-directional text */\n.CodeMirror div.CodeMirror-secondarycursor {\n  border-left: 1px solid silver; }\n\n.cm-fat-cursor .CodeMirror-cursor {\n  width: auto;\n  border: 0 !important;\n  background: #7e7; }\n\n.cm-fat-cursor div.CodeMirror-cursors {\n  z-index: 1; }\n\n.cm-fat-cursor-mark {\n  background-color: rgba(20, 255, 20, 0.5);\n  -webkit-animation: blink 1.06s steps(1) infinite;\n  animation: blink 1.06s steps(1) infinite; }\n\n.cm-animate-fat-cursor {\n  width: auto;\n  border: 0;\n  -webkit-animation: blink 1.06s steps(1) infinite;\n  animation: blink 1.06s steps(1) infinite;\n  background-color: #7e7; }\n\n@-webkit-keyframes blink {\n  0% { }\n  50% {\n    background-color: transparent; }\n  100% { } }\n\n@keyframes blink {\n  0% { }\n  50% {\n    background-color: transparent; }\n  100% { } }\n\n/* Can style cursor different in overwrite (non-insert) 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}\n\n/* STOP */\n/* The rest of this file contains styles related to the mechanics of\n   the editor. You probably shouldn't touch them. */\n.CodeMirror {\n  position: relative;\n  overflow: hidden;\n  background: white; }\n\n.CodeMirror-scroll {\n  overflow: scroll !important;\n  /* Things will break if this is overridden */\n  /* 30px is the magic margin used to hide the element's real scrollbars */\n  /* See overflow: hidden in .CodeMirror */\n  margin-bottom: -30px;\n  margin-right: -30px;\n  padding-bottom: 30px;\n  height: 100%;\n  outline: none;\n  /* Prevent dragging from highlighting the element */\n  position: relative; }\n\n.CodeMirror-sizer {\n  position: relative;\n  border-right: 30px solid transparent; }\n\n/* The fake, visible scrollbars. 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}\n\n.CodeMirror-gutter-background {\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 4; }\n\n.CodeMirror-gutter-elt {\n  position: absolute;\n  cursor: default;\n  z-index: 4; }\n\n.CodeMirror-gutter-wrapper ::-moz-selection {\n  background-color: transparent; }\n\n.CodeMirror-gutter-wrapper ::selection {\n  background-color: transparent; }\n\n.CodeMirror-gutter-wrapper ::-moz-selection {\n  background-color: transparent; }\n\n.CodeMirror-lines {\n  cursor: text;\n  min-height: 1px;\n  /* prevents collapsing before first draw */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  /* Reset some styles that the rest of the page might have set */\n  border-radius: 0;\n  border-width: 0;\n  background: transparent;\n  font-family: inherit;\n  font-size: inherit;\n  margin: 0;\n  white-space: pre;\n  word-wrap: normal;\n  line-height: inherit;\n  color: inherit;\n  z-index: 2;\n  position: relative;\n  overflow: visible;\n  -webkit-tap-highlight-color: transparent;\n  font-variant-ligatures: contextual; }\n\n.CodeMirror-wrap pre.CodeMirror-line,\n.CodeMirror-wrap pre.CodeMirror-line-like {\n  word-wrap: break-word;\n  white-space: pre-wrap;\n  word-break: normal; }\n\n.CodeMirror-linebackground {\n  position: absolute;\n  left: 0;\n  right: 0;\n  top: 0;\n  bottom: 0;\n  z-index: 0; }\n\n.CodeMirror-linewidget {\n  position: relative;\n  z-index: 2;\n  padding: 0.1px;\n  /* Force widget margins to stay inside of the container */ }\n\n.CodeMirror-rtl pre {\n  direction: rtl; }\n\n.CodeMirror-code {\n  outline: none; }\n\n/* Force content-box sizing for the elements where we expect it */\n.CodeMirror-scroll,\n.CodeMirror-sizer,\n.CodeMirror-gutter,\n.CodeMirror-gutters,\n.CodeMirror-linenumber {\n  box-sizing: content-box; }\n\n.CodeMirror-measure {\n  position: absolute;\n  width: 100%;\n  height: 0;\n  overflow: hidden;\n  visibility: hidden; }\n\n.CodeMirror-cursor {\n  position: absolute;\n  pointer-events: none; }\n\n.CodeMirror-measure pre {\n  position: static; }\n\ndiv.CodeMirror-cursors {\n  visibility: hidden;\n  position: relative;\n  z-index: 3; }\n\ndiv.CodeMirror-dragcursors {\n  visibility: visible; }\n\n.CodeMirror-focused div.CodeMirror-cursors {\n  visibility: visible; }\n\n.CodeMirror-selected {\n  background: #d9d9d9; }\n\n.CodeMirror-focused .CodeMirror-selected {\n  background: #d7d4f0; }\n\n.CodeMirror-crosshair {\n  cursor: crosshair; }\n\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection {\n  background: #d7d4f0; }\n\n.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection {\n  background: #d7d4f0; }\n\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection {\n  background: #d7d4f0; }\n\n.cm-searching {\n  background-color: #ffa;\n  background-color: rgba(255, 255, 0, 0.4); }\n\n/* Used to force a border model for a node */\n.cm-force-border {\n  padding-right: .1px; }\n\n@media print {\n  /* Hide the cursor when printing */\n  .CodeMirror div.CodeMirror-cursors {\n    visibility: hidden; } }\n\n/* See issue #2901 */\n.cm-tab-wrap-hack:after {\n  content: ''; }\n\n/* Help users use markselection to safely style text background */\nspan.CodeMirror-selectedtext {\n  background: none; }\n\n.v-md-container {\n  background: #f5f5f5;\n  border: solid 1px #ddd; }\n\n.v-md-container > .v-md-toolbar {\n  padding: 8px 5px;\n  border-bottom: solid 1px #ddd;\n  /* height: 52px; */ }\n\n.v-md-wrapper {\n  position: relative; }\n\n.v-md-preview {\n  position: absolute;\n  top: 0;\n  left: 0;\n  bottom: 0;\n  right: 0;\n  z-index: 999;\n  background: #fff;\n  padding: 5px;\n  overflow: auto;\n  color: #333;\n  height: auto !important; }\n\n.v-md-container .clipboard-text {\n  height: 250px; }\n\n.v-md-fullscreen {\n  width: 100%;\n  height: 100% !important;\n  top: 0;\n  left: 0;\n  right: 0;\n  bottom: 0;\n  position: fixed;\n  overflow: hidden;\n  z-index: 99999; }\n\n.v-md-container .CodeMirror {\n  font-family: Arial, Helvetica, sans-serif; }\n\n.v-md-auto-resize .CodeMirror {\n  height: auto !important; }\n\n.v-md-auto-resize .CodeMirror-scroll {\n  overflow: auto;\n  height: auto;\n  overflow: visible;\n  position: relative;\n  outline: none;\n  min-height: 300px;\n  /* the minimum height */ }\n\n.v-md-fullscreen .v-md-preview {\n  position: fixed !important;\n  top: 52px; }\n\n.CodeMirror-fullscreen {\n  position: fixed !important;\n  top: 52px;\n  left: 0;\n  right: 0;\n  bottom: 0;\n  height: auto !important;\n  z-index: 9; }\n\n.v-md-container .modal {\n  z-index: 1080 !important; }\n\n.v-md-container .modal .btn {\n  min-width: 90px; }\n\n.float-left {\n  float: left !important; }\n","/* BASICS */\n.CodeMirror {\n  /* Set height, width, borders, and global font properties here */\n  font-family: monospace;\n  height: 300px;\n  color: black;\n  direction: ltr; }\n\n/* PADDING */\n.CodeMirror-lines {\n  padding: 4px 0;\n  /* Vertical padding around content */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  padding: 0 4px;\n  /* Horizontal padding of content */ }\n\n.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n  background-color: white;\n  /* The little square between H and V scrollbars */ }\n\n/* GUTTER */\n.CodeMirror-gutters {\n  border-right: 1px solid #ddd;\n  background-color: #f7f7f7;\n  white-space: nowrap; }\n\n.CodeMirror-linenumber {\n  padding: 0 3px 0 5px;\n  min-width: 20px;\n  text-align: right;\n  color: #999;\n  white-space: nowrap; }\n\n.CodeMirror-guttermarker {\n  color: black; }\n\n.CodeMirror-guttermarker-subtle {\n  color: #999; }\n\n/* CURSOR */\n.CodeMirror-cursor {\n  border-left: 1px solid black;\n  border-right: none;\n  width: 0; }\n\n/* Shown when moving in bi-directional text */\n.CodeMirror div.CodeMirror-secondarycursor {\n  border-left: 1px solid silver; }\n\n.cm-fat-cursor .CodeMirror-cursor {\n  width: auto;\n  border: 0 !important;\n  background: #7e7; }\n\n.cm-fat-cursor div.CodeMirror-cursors {\n  z-index: 1; }\n\n.cm-fat-cursor-mark {\n  background-color: rgba(20, 255, 20, 0.5);\n  -webkit-animation: blink 1.06s steps(1) infinite;\n  animation: blink 1.06s steps(1) infinite; }\n\n.cm-animate-fat-cursor {\n  width: auto;\n  border: 0;\n  -webkit-animation: blink 1.06s steps(1) infinite;\n  animation: blink 1.06s steps(1) infinite;\n  background-color: #7e7; }\n\n@-webkit-keyframes blink {\n  0% { }\n  50% {\n    background-color: transparent; }\n  100% { } }\n\n@keyframes blink {\n  0% { }\n  50% {\n    background-color: transparent; }\n  100% { } }\n\n/* Can style cursor different in overwrite (non-insert) mode */\n.cm-tab {\n  display: inline-block;\n  text-decoration: inherit; }\n\n.CodeMirror-rulers {\n  position: absolute;\n  left: 0;\n  right: 0;\n  top: -50px;\n  bottom: 0;\n  overflow: hidden; }\n\n.CodeMirror-ruler {\n  border-left: 1px solid #ccc;\n  top: 0;\n  bottom: 0;\n  position: absolute; }\n\n/* DEFAULT THEME */\n.cm-s-default .cm-header {\n  color: blue; }\n\n.cm-s-default .cm-quote {\n  color: #090; }\n\n.cm-negative {\n  color: #d44; }\n\n.cm-positive {\n  color: #292; }\n\n.cm-header, .cm-strong {\n  font-weight: bold; }\n\n.cm-em {\n  font-style: italic; }\n\n.cm-link {\n  text-decoration: underline; }\n\n.cm-strikethrough {\n  text-decoration: line-through; }\n\n.cm-s-default .cm-keyword {\n  color: #708; }\n\n.cm-s-default .cm-atom {\n  color: #219; }\n\n.cm-s-default .cm-number {\n  color: #164; }\n\n.cm-s-default .cm-def {\n  color: #00f; }\n\n.cm-s-default .cm-variable-2 {\n  color: #05a; }\n\n.cm-s-default .cm-variable-3, .cm-s-default .cm-type {\n  color: #085; }\n\n.cm-s-default .cm-comment {\n  color: #a50; }\n\n.cm-s-default .cm-string {\n  color: #a11; }\n\n.cm-s-default .cm-string-2 {\n  color: #f50; }\n\n.cm-s-default .cm-meta {\n  color: #555; }\n\n.cm-s-default .cm-qualifier {\n  color: #555; }\n\n.cm-s-default .cm-builtin {\n  color: #30a; }\n\n.cm-s-default .cm-bracket {\n  color: #997; }\n\n.cm-s-default .cm-tag {\n  color: #170; }\n\n.cm-s-default .cm-attribute {\n  color: #00c; }\n\n.cm-s-default .cm-hr {\n  color: #999; }\n\n.cm-s-default .cm-link {\n  color: #00c; }\n\n.cm-s-default .cm-error {\n  color: #f00; }\n\n.cm-invalidchar {\n  color: #f00; }\n\n.CodeMirror-composing {\n  border-bottom: 2px solid; }\n\n/* Default styles for common addons */\ndiv.CodeMirror span.CodeMirror-matchingbracket {\n  color: #0b0; }\n\ndiv.CodeMirror span.CodeMirror-nonmatchingbracket {\n  color: #a22; }\n\n.CodeMirror-matchingtag {\n  background: rgba(255, 150, 0, 0.3); }\n\n.CodeMirror-activeline-background {\n  background: #e8f2ff; }\n\n/* STOP */\n/* The rest of this file contains styles related to the mechanics of\n   the editor. You probably shouldn't touch them. */\n.CodeMirror {\n  position: relative;\n  overflow: hidden;\n  background: white; }\n\n.CodeMirror-scroll {\n  overflow: scroll !important;\n  /* Things will break if this is overridden */\n  /* 30px is the magic margin used to hide the element's real scrollbars */\n  /* See overflow: hidden in .CodeMirror */\n  margin-bottom: -30px;\n  margin-right: -30px;\n  padding-bottom: 30px;\n  height: 100%;\n  outline: none;\n  /* Prevent dragging from highlighting the element */\n  position: relative; }\n\n.CodeMirror-sizer {\n  position: relative;\n  border-right: 30px solid transparent; }\n\n/* The fake, visible scrollbars. 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You probably shouldn't touch them. */\n.CodeMirror {\n  position: relative;\n  overflow: hidden;\n  background: white; }\n\n.CodeMirror-scroll {\n  overflow: scroll !important;\n  /* Things will break if this is overridden */\n  /* 30px is the magic margin used to hide the element's real scrollbars */\n  /* See overflow: hidden in .CodeMirror */\n  margin-bottom: -30px;\n  margin-right: -30px;\n  padding-bottom: 30px;\n  height: 100%;\n  outline: none;\n  /* Prevent dragging from highlighting the element */\n  position: relative; }\n\n.CodeMirror-sizer {\n  position: relative;\n  border-right: 30px solid transparent; }\n\n/* The fake, visible scrollbars. 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}\n\n.CodeMirror-wrap pre.CodeMirror-line,\n.CodeMirror-wrap pre.CodeMirror-line-like {\n  word-wrap: break-word;\n  white-space: pre-wrap;\n  word-break: normal; }\n\n.CodeMirror-linebackground {\n  position: absolute;\n  left: 0;\n  right: 0;\n  top: 0;\n  bottom: 0;\n  z-index: 0; }\n\n.CodeMirror-linewidget {\n  position: relative;\n  z-index: 2;\n  padding: 0.1px;\n  /* Force widget margins to stay inside of the container */ }\n\n.CodeMirror-rtl pre {\n  direction: rtl; }\n\n.CodeMirror-code {\n  outline: none; }\n\n/* Force content-box sizing for the elements where we expect it */\n.CodeMirror-scroll,\n.CodeMirror-sizer,\n.CodeMirror-gutter,\n.CodeMirror-gutters,\n.CodeMirror-linenumber {\n  box-sizing: content-box; }\n\n.CodeMirror-measure {\n  position: absolute;\n  width: 100%;\n  height: 0;\n  overflow: hidden;\n  visibility: hidden; }\n\n.CodeMirror-cursor {\n  position: absolute;\n  pointer-events: none; }\n\n.CodeMirror-measure pre {\n  position: static; }\n\ndiv.CodeMirror-cursors {\n  visibility: hidden;\n  position: relative;\n  z-index: 3; }\n\ndiv.CodeMirror-dragcursors {\n  visibility: visible; }\n\n.CodeMirror-focused div.CodeMirror-cursors {\n  visibility: visible; }\n\n.CodeMirror-selected {\n  background: #d9d9d9; }\n\n.CodeMirror-focused .CodeMirror-selected {\n  background: #d7d4f0; }\n\n.CodeMirror-crosshair {\n  cursor: crosshair; }\n\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection {\n  background: #d7d4f0; }\n\n.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection {\n  background: #d7d4f0; }\n\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection {\n  background: #d7d4f0; }\n\n.cm-searching {\n  background-color: #ffa;\n  background-color: rgba(255, 255, 0, 0.4); }\n\n/* Used to force a border model for a node */\n.cm-force-border {\n  padding-right: .1px; }\n\n@media print {\n  /* Hide the cursor when printing */\n  .CodeMirror div.CodeMirror-cursors {\n    visibility: hidden; } }\n\n/* See issue #2901 */\n.cm-tab-wrap-hack:after {\n  content: ''; }\n\n/* Help users use markselection to safely style text background */\nspan.CodeMirror-selectedtext {\n  background: none; }\n\n.v-md-container {\n  border: solid 1px #ddd;\n  background: #fff; }\n\n.v-md-container > .v-md-toolbar {\n  padding: 8px 5px;\n  border-bottom: solid 1px #ddd;\n  background: #f5f5f5;\n  /* height: 52px; */ }\n\n.v-md-wrapper {\n  position: relative;\n  /* padding: 5px; */ }\n\n.v-md-preview {\n  position: absolute;\n  top: 0;\n  left: 0;\n  bottom: 0;\n  right: 0;\n  z-index: 999;\n  background: #fff;\n  padding: 5px;\n  overflow: auto;\n  color: #333;\n  height: auto !important; }\n\n.v-md-fullscreen {\n  width: 100%;\n  height: 100% !important;\n  top: 0;\n  left: 0;\n  right: 0;\n  bottom: 0;\n  position: fixed;\n  overflow: hidden;\n  z-index: 99999; }\n\n.v-md-fullscreen .v-md-preview {\n  position: fixed !important;\n  top: 52px; }\n\n.v-md-auto-resize .CodeMirror {\n  height: auto !important; }\n\n.v-md-auto-resize .CodeMirror-scroll {\n  overflow: auto;\n  height: auto;\n  overflow: visible;\n  position: relative;\n  outline: none;\n  min-height: 250px; }\n\n/* \n.v-md-container .cm-scroller{\n    \n    height: 280px;\n    font-family: unset;\n} */\n/* .v-md-auto-resize .cm-scroller {\n    overflow: auto;\n    height: auto;\n    overflow: visible;\n    position: relative;\n    outline: none;\n    min-width: auto;   \n    \n}\n\n\n.v-md-wrapper .cm-wrap.cm-focused{\n    outline: 0;\n}\n.v-md-wrapper .cm-content{\n    white-space: unset;\n    font-family: unset;\n}\n\n.cm-keyword {\n    color: #708;\n}\n\n.cm-atom {\n    color: #219;\n}\n\n.cm-number {\n    color: #164;\n}\n\n.cm-def {\n    color: #00f;\n}\n\n.cm-variable, .cm-punctuation, .cm-property, .cm-operator {}\n\n.cm-variable-2 {\n    color: #05a;\n}\n\n.cm-variable-3, .cm-type {\n    color: #085;\n}\n\n.cm-comment {\n    color: #a50;\n}\n\n.cm-string {\n    color: #a11;\n}\n\n.cm-string-2 {\n    color: #f50;\n}\n\n.cm-meta {\n    color: #555;\n}\n\n.cm-qualifier {\n    color: #555;\n}\n\n.cm-builtin {\n    color: #30a;\n}\n\n.cm-bracket {\n    color: #997;\n}\n\n.cm-tag {\n    color: #170;\n}\n\n.cm-attribute {\n    color: #00c;\n}\n\n.cm-hr {\n    color: #999;\n}\n\n.cm-link {\n    color: #00c;\n} */\n","/* BASICS */\n.CodeMirror {\n  /* Set height, width, borders, and global font properties here */\n  font-family: monospace;\n  height: 300px;\n  color: black;\n  direction: ltr; }\n\n/* PADDING */\n.CodeMirror-lines {\n  padding: 4px 0;\n  /* Vertical padding around content */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  padding: 0 4px;\n  /* Horizontal padding of content */ }\n\n.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n  background-color: white;\n  /* The little square between H and V scrollbars */ }\n\n/* GUTTER */\n.CodeMirror-gutters {\n  border-right: 1px solid #ddd;\n  background-color: #f7f7f7;\n  white-space: nowrap; }\n\n.CodeMirror-linenumber {\n  padding: 0 3px 0 5px;\n  min-width: 20px;\n  text-align: right;\n  color: #999;\n  white-space: nowrap; }\n\n.CodeMirror-guttermarker {\n  color: black; }\n\n.CodeMirror-guttermarker-subtle {\n  color: #999; }\n\n/* CURSOR */\n.CodeMirror-cursor {\n  border-left: 1px solid black;\n  border-right: none;\n  width: 0; }\n\n/* Shown when moving in bi-directional text */\n.CodeMirror div.CodeMirror-secondarycursor {\n  border-left: 1px solid silver; }\n\n.cm-fat-cursor .CodeMirror-cursor {\n  width: auto;\n  border: 0 !important;\n  background: #7e7; }\n\n.cm-fat-cursor div.CodeMirror-cursors {\n  z-index: 1; }\n\n.cm-fat-cursor-mark {\n  background-color: rgba(20, 255, 20, 0.5);\n  -webkit-animation: blink 1.06s steps(1) infinite;\n  animation: blink 1.06s steps(1) infinite; }\n\n.cm-animate-fat-cursor {\n  width: auto;\n  border: 0;\n  -webkit-animation: blink 1.06s steps(1) infinite;\n  animation: blink 1.06s steps(1) infinite;\n  background-color: #7e7; }\n\n@-webkit-keyframes blink {\n  0% { }\n  50% {\n    background-color: transparent; }\n  100% { } }\n\n@keyframes blink {\n  0% { }\n  50% {\n    background-color: transparent; }\n  100% { } }\n\n/* Can style cursor different in overwrite (non-insert) mode */\n.cm-tab {\n  display: inline-block;\n  text-decoration: inherit; }\n\n.CodeMirror-rulers {\n  position: absolute;\n  left: 0;\n  right: 0;\n  top: -50px;\n  bottom: 0;\n  overflow: hidden; }\n\n.CodeMirror-ruler {\n  border-left: 1px solid #ccc;\n  top: 0;\n  bottom: 0;\n  position: absolute; }\n\n/* DEFAULT THEME */\n.cm-s-default .cm-header {\n  color: blue; }\n\n.cm-s-default .cm-quote {\n  color: #090; }\n\n.cm-negative {\n  color: #d44; }\n\n.cm-positive {\n  color: #292; }\n\n.cm-header, .cm-strong {\n  font-weight: bold; }\n\n.cm-em {\n  font-style: italic; }\n\n.cm-link {\n  text-decoration: underline; }\n\n.cm-strikethrough {\n  text-decoration: line-through; }\n\n.cm-s-default .cm-keyword {\n  color: #708; }\n\n.cm-s-default .cm-atom {\n  color: #219; }\n\n.cm-s-default .cm-number {\n  color: #164; }\n\n.cm-s-default .cm-def {\n  color: #00f; }\n\n.cm-s-default .cm-variable-2 {\n  color: #05a; }\n\n.cm-s-default .cm-variable-3, .cm-s-default .cm-type {\n  color: #085; }\n\n.cm-s-default .cm-comment {\n  color: #a50; }\n\n.cm-s-default .cm-string {\n  color: #a11; }\n\n.cm-s-default .cm-string-2 {\n  color: #f50; }\n\n.cm-s-default .cm-meta {\n  color: #555; }\n\n.cm-s-default .cm-qualifier {\n  color: #555; }\n\n.cm-s-default .cm-builtin {\n  color: #30a; }\n\n.cm-s-default .cm-bracket {\n  color: #997; }\n\n.cm-s-default .cm-tag {\n  color: #170; }\n\n.cm-s-default .cm-attribute {\n  color: #00c; }\n\n.cm-s-default .cm-hr {\n  color: #999; }\n\n.cm-s-default .cm-link {\n  color: #00c; }\n\n.cm-s-default .cm-error {\n  color: #f00; }\n\n.cm-invalidchar {\n  color: #f00; }\n\n.CodeMirror-composing {\n  border-bottom: 2px solid; }\n\n/* Default styles for common addons */\ndiv.CodeMirror span.CodeMirror-matchingbracket {\n  color: #0b0; }\n\ndiv.CodeMirror span.CodeMirror-nonmatchingbracket {\n  color: #a22; }\n\n.CodeMirror-matchingtag {\n  background: rgba(255, 150, 0, 0.3); }\n\n.CodeMirror-activeline-background {\n  background: #e8f2ff; }\n\n/* STOP */\n/* The rest of this file contains styles related to the mechanics of\n   the editor. You probably shouldn't touch them. */\n.CodeMirror {\n  position: relative;\n  overflow: hidden;\n  background: white; }\n\n.CodeMirror-scroll {\n  overflow: scroll !important;\n  /* Things will break if this is overridden */\n  /* 30px is the magic margin used to hide the element's real scrollbars */\n  /* See overflow: hidden in .CodeMirror */\n  margin-bottom: -30px;\n  margin-right: -30px;\n  padding-bottom: 30px;\n  height: 100%;\n  outline: none;\n  /* Prevent dragging from highlighting the element */\n  position: relative; }\n\n.CodeMirror-sizer {\n  position: relative;\n  border-right: 30px solid transparent; }\n\n/* The fake, visible scrollbars. Used to force redraw during scrolling\n   before actual scrolling happens, thus preventing shaking and\n   flickering artifacts. */\n.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n  position: absolute;\n  z-index: 6;\n  display: none; }\n\n.CodeMirror-vscrollbar {\n  right: 0;\n  top: 0;\n  overflow-x: hidden;\n  overflow-y: scroll; }\n\n.CodeMirror-hscrollbar {\n  bottom: 0;\n  left: 0;\n  overflow-y: hidden;\n  overflow-x: scroll; }\n\n.CodeMirror-scrollbar-filler {\n  right: 0;\n  bottom: 0; }\n\n.CodeMirror-gutter-filler {\n  left: 0;\n  bottom: 0; }\n\n.CodeMirror-gutters {\n  position: absolute;\n  left: 0;\n  top: 0;\n  min-height: 100%;\n  z-index: 3; }\n\n.CodeMirror-gutter {\n  white-space: normal;\n  height: 100%;\n  display: inline-block;\n  vertical-align: top;\n  margin-bottom: -30px; }\n\n.CodeMirror-gutter-wrapper {\n  position: absolute;\n  z-index: 4;\n  background: none !important;\n  border: none !important; }\n\n.CodeMirror-gutter-background {\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 4; }\n\n.CodeMirror-gutter-elt {\n  position: absolute;\n  cursor: default;\n  z-index: 4; }\n\n.CodeMirror-gutter-wrapper ::-moz-selection {\n  background-color: transparent; }\n\n.CodeMirror-gutter-wrapper ::selection {\n  background-color: transparent; }\n\n.CodeMirror-gutter-wrapper ::-moz-selection {\n  background-color: transparent; }\n\n.CodeMirror-lines {\n  cursor: text;\n  min-height: 1px;\n  /* prevents collapsing before first draw */ }\n\n.CodeMirror pre.CodeMirror-line,\n.CodeMirror pre.CodeMirror-line-like {\n  /* Reset some styles that the rest of the page might have set */\n  border-radius: 0;\n  border-width: 0;\n  background: transparent;\n  font-family: inherit;\n  font-size: inherit;\n  margin: 0;\n  white-space: pre;\n  word-wrap: normal;\n  line-height: inherit;\n  color: inherit;\n  z-index: 2;\n  position: relative;\n  overflow: visible;\n  -webkit-tap-highlight-color: transparent;\n  font-variant-ligatures: contextual; }\n\n.CodeMirror-wrap pre.CodeMirror-line,\n.CodeMirror-wrap pre.CodeMirror-line-like {\n  word-wrap: break-word;\n  white-space: pre-wrap;\n  word-break: normal; }\n\n.CodeMirror-linebackground {\n  position: absolute;\n  left: 0;\n  right: 0;\n  top: 0;\n  bottom: 0;\n  z-index: 0; }\n\n.CodeMirror-linewidget {\n  position: relative;\n  z-index: 2;\n  padding: 0.1px;\n  /* Force widget margins to stay inside of the container */ }\n\n.CodeMirror-rtl pre {\n  direction: rtl; }\n\n.CodeMirror-code {\n  outline: none; }\n\n/* Force content-box sizing for the elements where we expect it */\n.CodeMirror-scroll,\n.CodeMirror-sizer,\n.CodeMirror-gutter,\n.CodeMirror-gutters,\n.CodeMirror-linenumber {\n  box-sizing: content-box; }\n\n.CodeMirror-measure {\n  position: absolute;\n  width: 100%;\n  height: 0;\n  overflow: hidden;\n  visibility: hidden; }\n\n.CodeMirror-cursor {\n  position: absolute;\n  pointer-events: none; }\n\n.CodeMirror-measure pre {\n  position: static; }\n\ndiv.CodeMirror-cursors {\n  visibility: hidden;\n  position: relative;\n  z-index: 3; }\n\ndiv.CodeMirror-dragcursors {\n  visibility: visible; }\n\n.CodeMirror-focused div.CodeMirror-cursors {\n  visibility: visible; }\n\n.CodeMirror-selected {\n  background: #d9d9d9; }\n\n.CodeMirror-focused .CodeMirror-selected {\n  background: #d7d4f0; }\n\n.CodeMirror-crosshair {\n  cursor: crosshair; }\n\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection {\n  background: #d7d4f0; }\n\n.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection {\n  background: #d7d4f0; }\n\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection {\n  background: #d7d4f0; }\n\n.cm-searching {\n  background-color: #ffa;\n  background-color: rgba(255, 255, 0, 0.4); }\n\n/* Used to force a border model for a node */\n.cm-force-border {\n  padding-right: .1px; }\n\n@media print {\n  /* Hide the cursor when printing */\n  .CodeMirror div.CodeMirror-cursors {\n    visibility: hidden; } }\n\n/* See issue #2901 */\n.cm-tab-wrap-hack:after {\n  content: ''; }\n\n/* Help users use markselection to safely style text background */\nspan.CodeMirror-selectedtext {\n  background: none; }\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/dist/www/index.html b/dist/www/index.html
index c466635..b92f357 100644
--- a/dist/www/index.html
+++ b/dist/www/index.html
@@ -1 +1 @@
-<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no"><title>Vue.js Markdown Editor</title><meta name="description" content="Vue Markdown Editor component for Vue.js"><meta name="image" content="https://i.imgur.com/Bcr3Xhk.png"><meta property="og:title" content="Markdown Editor component for Vue.js"><meta property="og:url" content="https://github.io/nasa8x/v-markdown-editor"><meta property="og:description" content="Markdown Editor component for Vue.js"><meta property="og:image" content="https://i.imgur.com/Bcr3Xhk.png"><meta property="twitter:title" content="Markdown Editor component for Vue.js"><meta property="twitter:description" content="Markdown Editor component for Vue.js"><meta property="twitter:image" content="https://i.imgur.com/Bcr3Xhk.png"><link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"><link href="//l.allcdn.org/fa/v5.12.2/css/all.min.css" rel="stylesheet"><link href="../www/css/app.css?fc01c5d7842310fcc131" rel="stylesheet"></head><body><div id="app">Loading...</div><script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script><script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.1/umd/popper.min.js"></script><script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/js/bootstrap.min.js"></script><script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js"></script><script type="text/javascript" src="../www.min.js?fc01c5d7842310fcc131"></script></body></html>
\ No newline at end of file
+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no"><title>Vue.js Markdown Editor</title><meta name="description" content="Vue Markdown Editor component for Vue.js"><meta name="image" content="https://i.imgur.com/Bcr3Xhk.png"><meta property="og:title" content="Markdown Editor component for Vue.js"><meta property="og:url" content="https://github.io/nasa8x/v-markdown-editor"><meta property="og:description" content="Markdown Editor component for Vue.js"><meta property="og:image" content="https://i.imgur.com/Bcr3Xhk.png"><meta property="twitter:title" content="Markdown Editor component for Vue.js"><meta property="twitter:description" content="Markdown Editor component for Vue.js"><meta property="twitter:image" content="https://i.imgur.com/Bcr3Xhk.png"><link href="https://cdn.jsdelivr.net/npm/morioh@1.0.8/dist/css/morioh.min.css" rel="stylesheet"><link href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@5.12.1/css/all.min.css" rel="stylesheet"><link href="../www/css/app.css?bbd0f04682bdd27660c9" rel="stylesheet"></head><body><div id="app">Loading...</div><script type="text/javascript" src="https://cdn.jsdelivr.net/npm/vue@2.6.11/dist/vue.min.js"></script><script type="text/javascript" src="../www.min.js?bbd0f04682bdd27660c9"></script></body></html>
\ No newline at end of file
diff --git a/dist/www/js/app.js b/dist/www/js/app.js
index 971d13d..8a39401 100644
--- a/dist/www/js/app.js
+++ b/dist/www/js/app.js
@@ -93,7 +93,7 @@
 /*! no static exports found */
 /***/ (function(module, exports, __webpack_require__) {
 
-/* WEBPACK VAR INJECTION */(function(module) {var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+/* WEBPACK VAR INJECTION */(function(module) {var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
 
 (function webpackUniversalModuleDefinition(root, factory) {
   if (( false ? undefined : _typeof(exports)) === 'object' && ( false ? undefined : _typeof(module)) === 'object') module.exports = factory();else if (true) !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
@@ -372,125 +372,63 @@
         /* harmony import */
 
 
-        var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(
-        /*! codemirror/lib/codemirror.css */
-        "codemirror/lib/codemirror.css");
-        /* harmony import */
-
-
-        var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0___default =
-        /*#__PURE__*/
-        __webpack_require__.n(codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__);
-        /* harmony import */
-
-
-        var _index_css__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(
-        /*! ./index.css */
-        "./src/index.css");
-        /* harmony import */
-
-
-        var _index_css__WEBPACK_IMPORTED_MODULE_1___default =
-        /*#__PURE__*/
-        __webpack_require__.n(_index_css__WEBPACK_IMPORTED_MODULE_1__);
-        /* harmony import */
-
-
-        var markdownparser__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(
+        var markdownparser__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(
         /*! markdownparser */
         "markdownparser");
         /* harmony import */
 
 
-        var markdownparser__WEBPACK_IMPORTED_MODULE_2___default =
-        /*#__PURE__*/
-        __webpack_require__.n(markdownparser__WEBPACK_IMPORTED_MODULE_2__);
+        var markdownparser__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(markdownparser__WEBPACK_IMPORTED_MODULE_0__);
         /* harmony import */
 
 
-        var marked__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(
+        var marked__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(
         /*! marked */
         "marked");
         /* harmony import */
 
 
-        var marked__WEBPACK_IMPORTED_MODULE_3___default =
-        /*#__PURE__*/
-        __webpack_require__.n(marked__WEBPACK_IMPORTED_MODULE_3__);
+        var marked__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(marked__WEBPACK_IMPORTED_MODULE_1__);
         /* harmony import */
 
 
-        var codemirror__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(
+        var codemirror__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(
         /*! codemirror */
         "codemirror");
         /* harmony import */
 
 
-        var codemirror__WEBPACK_IMPORTED_MODULE_4___default =
-        /*#__PURE__*/
-        __webpack_require__.n(codemirror__WEBPACK_IMPORTED_MODULE_4__);
+        var codemirror__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(codemirror__WEBPACK_IMPORTED_MODULE_2__);
         /* harmony import */
 
 
-        var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(
+        var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(
         /*! codemirror/addon/display/fullscreen.js */
         "codemirror/addon/display/fullscreen.js");
         /* harmony import */
 
 
-        var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5___default =
-        /*#__PURE__*/
-        __webpack_require__.n(codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5__);
+        var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_3__);
         /* harmony import */
 
 
-        var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(
+        var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(
         /*! codemirror/mode/markdown/markdown.js */
         "codemirror/mode/markdown/markdown.js");
         /* harmony import */
 
 
-        var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6___default =
-        /*#__PURE__*/
-        __webpack_require__.n(codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6__);
-        /* harmony import */
-
-
-        var codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(
-        /*! codemirror/mode/gfm/gfm.js */
-        "codemirror/mode/gfm/gfm.js");
-        /* harmony import */
-
-
-        var codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7___default =
-        /*#__PURE__*/
-        __webpack_require__.n(codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7__);
+        var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4___default = /*#__PURE__*/__webpack_require__.n(codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_4__);
         /* harmony import */
 
 
-        var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(
+        var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(
         /*! codemirror/addon/display/placeholder.js */
         "codemirror/addon/display/placeholder.js");
         /* harmony import */
 
 
-        var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8___default =
-        /*#__PURE__*/
-        __webpack_require__.n(codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8__);
-        /* harmony import */
-
-
-        var codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(
-        /*! codemirror/addon/selection/active-line.js */
-        "codemirror/addon/selection/active-line.js");
-        /* harmony import */
-
-
-        var codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9___default =
-        /*#__PURE__*/
-        __webpack_require__.n(codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9__); //
-        //
-        //
+        var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_5__); //
         //
         //
         //
@@ -514,6 +452,12 @@
 
         __webpack_exports__["default"] = {
           props: {
+            id: {
+              type: String,
+              "default": function _default() {
+                return 'v-md-editor-' + Math.random().toString(16).substr(2, 9);
+              }
+            },
             css: {
               type: String
             },
@@ -536,151 +480,123 @@
               type: Object,
               "default": function _default() {
                 return {
+                  "clean": {
+                    cmd: "clean",
+                    ico: "fas fa-remove-format mdi mdi-format-clear",
+                    title: "Html to markdown",
+                    hotkey: 'Shift-Alt-F'
+                  },
+                  "undo": {
+                    cmd: "undo",
+                    ico: "fas fa-undo mdi mdi-undo-variant",
+                    title: "Undo",
+                    hotkey: 'Ctrl-Z'
+                  },
+                  "redo": {
+                    cmd: "redo",
+                    ico: "fas fa-redo mdi mdi-redo-variant",
+                    title: "Redo",
+                    hotkey: 'Ctrl-Y'
+                  },
+                  "bullist": {
+                    cmd: "bullist",
+                    ico: "fas fa-list-ul mdi mdi-format-list-bulleted",
+                    title: "Generic List"
+                  },
+                  "numlist": {
+                    cmd: "numlist",
+                    ico: "fas fa-list-ol mdi mdi-format-list-numbered",
+                    title: "Numbered List"
+                  },
                   'bold': {
                     title: 'Bold',
-                    className: 'far fa-bold',
+                    ico: 'fas fa-bold mdi mdi-format-bold',
                     cmd: 'bold',
                     hotkey: 'Ctrl-B'
                   },
                   'italic': {
                     title: 'Italic',
-                    className: "far fa-italic",
+                    ico: "fas fa-italic mdi mdi-format-italic",
                     cmd: 'italic',
                     hotkey: 'Ctrl-I'
                   },
                   "strikethrough": {
                     cmd: "strikethrough",
-                    className: "far fa-strikethrough",
+                    ico: "fas fa-strikethrough mdi mdi-format-strikethrough",
                     title: "Strikethrough"
                   },
                   'heading': {
                     title: 'Heading',
-                    className: "far fa-heading",
+                    ico: "fas fa-heading mdi mdi-format-header-3",
                     cmd: 'heading',
                     hotkey: 'Ctrl-H'
                   },
                   'code': {
                     title: 'Code',
-                    className: "far fa-code",
+                    ico: "fas fa-code mdi mdi-code-tags",
                     cmd: 'code',
                     hotkey: 'Ctrl-X'
                   },
                   'quote': {
                     title: 'Quote',
-                    className: "far fa-quote-left",
+                    ico: "fas fa-quote-left mdi mdi-format-quote-open",
                     cmd: 'quote',
                     hotkey: 'Ctrl-Q'
                   },
                   'link': {
                     title: 'Link',
-                    className: "far fa-link",
+                    ico: "fas fa-link mdi mdi-link",
                     cmd: 'link',
                     hotkey: 'Ctrl-K'
                   },
                   'image': {
                     title: 'Image',
-                    className: "far fa-image",
+                    ico: "fas fa-image mdi mdi-image",
                     cmd: 'image',
                     hotkey: 'Ctrl-P'
                   },
                   "fullscreen": {
                     cmd: "fullscreen",
-                    className: "far fa-arrows-alt no-disable no-mobile",
+                    ico: "fas fa-expand mdi mdi-fullscreen",
                     title: "Toggle Fullscreen",
                     hotkey: 'F11',
                     ready: true
                   },
                   "preview": {
                     cmd: "preview",
-                    className: "far fa-eye no-disable",
+                    ico: "fas fa-eye mdi mdi-eye",
                     title: "Toggle Preview",
                     hotkey: 'Ctrl-P',
                     ready: true
-                  },
-                  "clipboard": {
-                    cmd: "clipboard",
-                    className: "far fa-clipboard",
-                    title: "Copy & Markdown Format",
-                    hotkey: 'Ctrl-V'
-                  },
-                  "clean": {
-                    cmd: "clean",
-                    className: "far fa-remove-format",
-                    title: "Html to markdown"
-                  },
-                  "undo": {
-                    cmd: "undo",
-                    className: "far fa-undo",
-                    title: "Undo",
-                    hotkey: 'Ctrl-Z'
-                  },
-                  "redo": {
-                    cmd: "redo",
-                    className: "far fa-repeat",
-                    title: "Redo",
-                    hotkey: 'Ctrl-Y'
-                  },
-                  "bullist": {
-                    cmd: "bullist",
-                    className: "far fa-list-ul",
-                    title: "Generic List"
-                  },
-                  "numlist": {
-                    cmd: "numlist",
-                    className: "far fa-list-ol",
-                    title: "Numbered List"
                   }
                 };
               }
             },
-            name: {
+            theme: {
               type: String,
-              "default": 'html'
+              "default": 'outline-secondary'
             },
             value: {
               type: String,
               "default": '',
               required: false
             },
-            buttonClass: {
-              type: String,
-              "default": 'btn btn-outline-secondary'
-            },
             options: {
               type: Object,
               "default": function _default() {
-                return {
-                  mode: 'gfm',
-                  theme: "elegent",
-                  lineNumbers: false,
-                  styleActiveLine: false,
-                  styleSelectedText: true,
-                  lineWrapping: true,
-                  indentWithTabs: true,
-                  autoRefresh: true,
-                  tabSize: 2,
-                  indentUnit: 2
-                };
+                return {};
               }
             }
           },
           data: function data() {
             return {
-              id: 'v-md-editor-' + new Date().getTime(),
               editor: null,
               preview: false,
+              fullScreen: false,
               html: '',
-              toolbars: [],
-              shortcuts: {}
+              toolbars: []
             };
           },
-          watch: {
-            value: function value(val) {
-              if (val != this.editor.getValue()) {
-                this.editor.setValue(val);
-              }
-            }
-          },
           computed: {
             styles: function styles() {
               return {
@@ -689,6 +605,13 @@
               };
             }
           },
+          watch: {
+            value: function value(val) {
+              if (val != this.editor.getValue()) {
+                this.editor.setValue(val);
+              }
+            }
+          },
           methods: {
             isEmpty: function isEmpty(s) {
               return s === null || s === undefined ? true : /^[\s\xa0]*$/.test(s);
@@ -705,12 +628,6 @@
 
               return a; // Make chainable
             },
-            uid: function uid(name) {
-              return this.format('%s-%s', this.id, name);
-            },
-            obj: function obj(name) {
-              return jQuery('#' + this.uid(name));
-            },
             _toggleBlock: function _toggleBlock(type, start, end) {
               end = this.isEmpty(end) ? start : end;
               var ed = this.editor;
@@ -772,9 +689,8 @@
                 ed.replaceSelection(start + text + end);
                 startPoint.ch += start.length;
                 endPoint.ch = startPoint.ch + text.length;
-              }
+              } // ed.setSelection(startPoint, endPoint);
 
-              ed.setSelection(startPoint, endPoint);
             },
             _toggleLine: function _toggleLine(name) {
               var ed = this.editor;
@@ -880,18 +796,14 @@
                   ch: 0
                 });
               } else {
-                // text = ed.getSelection();
-                // ed.replaceSelection(start + text + end);
                 ed.replaceSelection(start + end);
                 startPoint.ch += start.length;
 
                 if (startPoint !== endPoint) {
                   endPoint.ch += start.length;
                 }
-              }
+              } //ed.setSelection(startPoint, endPoint);
 
-              ed.setSelection(startPoint, endPoint);
-              ed.focus();
             },
             drawImage: function drawImage(obj) {
               var stat = this.state();
@@ -906,7 +818,6 @@
             command: function command(key) {
               var ed = this.editor;
               var text = ed.getSelection();
-              var stat = this.state();
               this.$root.$emit('markdown-editor:' + key, this);
 
               switch (key) {
@@ -942,12 +853,7 @@
                   ed.replaceSelection('\n### ' + text);
                   break;
 
-                case 'clipboard':
-                  this.obj('modal-clipboard').modal('show');
-                  break;
-
                 case 'image':
-                  // this.obj('modal-image').modal('show');
                   var url = prompt("Please enter image url", "https://");
 
                   if (this.isUrl(url)) {
@@ -961,7 +867,6 @@
                   break;
 
                 case 'link':
-                  //this.obj('modal-link').modal('show');
                   var url = prompt("Please enter link", "https://");
 
                   if (this.isUrl(url)) {
@@ -979,11 +884,6 @@
 
                   break;
 
-                case 'quote':
-                  this._toggleLine('quote');
-
-                  break;
-
                 case 'numlist':
                   this._toggleLine('numlist');
 
@@ -995,99 +895,59 @@
                   break;
 
                 case 'preview':
-                  ///var md = new MarkdownIt({ typographer: true, breaks: true, quotes: '“”‘’' });
-                  this.html = marked__WEBPACK_IMPORTED_MODULE_3___default()(ed.getValue(), {
+                  this.html = marked__WEBPACK_IMPORTED_MODULE_1___default()(ed.getValue(), {
                     breaks: true
                   });
-                  this.preview ^= true;
-                  this.obj('toolbar').find('.btn:not(".ready")').prop('disabled', this.preview);
+                  this.preview = !this.preview;
                   break;
 
                 case 'fullscreen':
-                  this.obj('container').toggleClass('v-md-fullscreen');
-                  this.obj('fullscreen').toggleClass('active');
+                  this.fullScreen = !this.fullScreen;
                   ed.setOption("fullScreen", !ed.getOption("fullScreen"));
                   break;
 
                 case 'clean':
-                  text = markdownparser__WEBPACK_IMPORTED_MODULE_2___default.a.parse(text);
-                  ed.replaceSelection(text);
+                  ed.replaceSelection(markdownparser__WEBPACK_IMPORTED_MODULE_0___default.a.parse(text));
                   break;
               }
-
-              ed.focus();
             },
             build: function build() {
-              if (!jQuery) {
-                console.error("Must required jQuery!");
-                return;
-              }
-
-              if (this.isEmpty(this.toolbar)) {
-                console.error("You must set toolbar!");
-                return;
-              }
+              var _this = this;
 
               if (this.__rendered) return;
+              var buttons = Object.assign({}, this.buttons, this.extend);
+              var shortcuts = {};
+              this.toolbar.split('|').forEach(function (t, i) {
+                var group = [];
+                t.toLowerCase().split(/(\s)/).forEach(function (b) {
+                  if (!_this.isEmpty(b)) {
+                    var btn = buttons[b];
+
+                    if (!_this.isEmpty(btn.hotkey)) {
+                      shortcuts[btn.hotkey] = function () {
+                        return _this.command(btn.cmd);
+                      };
+                    }
 
-              var _t = this;
-
-              this.buttons = Object.assign(this.buttons, this.extend);
-
-              var btns = _t.toolbar.toLowerCase().split(/(\s)/).filter(function (w) {
-                return !_t.isEmpty(w);
-              });
-
-              var group = [];
-
-              for (var i = 0; i < btns.length; i++) {
-                var btn = btns[i];
-                var obj = _t.buttons[btn];
-
-                if (obj) {
-                  // obj.cmd = typeof obj.cmd ==='function'? obj.cmd: this.command(obj.cmd);
-                  obj.id = btn;
-                  group.push(obj);
-                }
-
-                if (btn === '|' || i == btns.length - 1) {
-                  this.toolbars.push(group);
-                  group = [];
-                }
-              }
-
-              var o = Object.assign({}, {
-                extraKeys: _t.shortcuts,
-                initialValue: _t.value
-              }, _t.options);
-              var el = document.getElementById(_t.id + '-input');
-              _t.editor = codemirror__WEBPACK_IMPORTED_MODULE_4___default.a.fromTextArea(el, o);
-
-              _t.editor.on("change", function (ed) {
-                //_t.editor.save();                    
-                _t.$emit('input', ed.getValue()); //_t.value = ed.getValue();
-
-              });
-
-              _t.editor.on("cursorActivity", function () {
-                var stat = _t.state();
-
-                _t.obj('toolbar').find('.btn.active:not(.ready)').removeClass('active');
-
-                Object.keys(stat).forEach(function (key) {
-                  _t.obj(key).addClass('active');
+                    group.push(btn);
+                  }
                 });
+                if (group.length > 0) _this.toolbars.push(group);
               });
-
-              _t.__rendered = true;
+              var o = Object.assign({
+                mode: 'markdown',
+                extraKeys: shortcuts
+              }, this.options);
+              var ed = this.editor = codemirror__WEBPACK_IMPORTED_MODULE_2___default.a.fromTextArea(document.getElementById(this.id), o);
+              ed.setValue(this.value);
+              ed.on("change", function (ed) {
+                _this.$emit('input', ed.getValue());
+              });
+              this.__rendered = true;
             }
           },
           mounted: function mounted() {
-            var _this = this;
-
-            this.$nextTick(function () {
-              _this.build();
-            });
+            this.build();
           },
           destroyed: function destroyed() {
             this.editor = null;
@@ -1131,16 +991,11 @@
 
           return _c("div", {
             "class": ["v-md-container", _vm.css, {
-              "v-md-auto-resize": _vm.height == "auto"
-            }],
-            attrs: {
-              id: _vm.uid("container")
-            }
-          }, [_c("div", {
-            staticClass: "v-md-toolbar",
-            attrs: {
-              id: _vm.uid("toolbar")
-            }
+              "v-md-auto-resize": _vm.height == "auto",
+              "v-md-fullscreen": _vm.fullScreen
+            }]
+          }, [_vm.toolbars.length > 0 ? _c("div", {
+            staticClass: "v-md-toolbar"
           }, _vm._l(_vm.toolbars, function (group) {
             return _c("div", {
               staticClass: "btn-group mr-3",
@@ -1149,13 +1004,11 @@
               }
             }, _vm._l(group, function (i) {
               return _c("button", {
-                "class": [_vm.buttonClass, {
-                  ready: i.ready
-                }],
+                "class": "btn btn-" + _vm.theme,
                 attrs: {
                   type: "button",
-                  id: _vm.uid(i.id),
-                  title: i.title
+                  title: i.title,
+                  disabled: _vm.preview && !i.ready
                 },
                 on: {
                   click: function click($event) {
@@ -1163,43 +1016,24 @@
                   }
                 }
               }, [_c("i", {
-                "class": i.className,
-                attrs: {
-                  "aria-hidden": "true"
-                }
+                "class": i.ico
               })]);
             }), 0);
-          }), 0), _vm._v(" "), _c("div", {
-            staticClass: "v-md-wrapper"
+          }), 0) : _vm._e(), _vm._v(" "), _c("div", {
+            staticClass: "v-md-wrapper",
+            on: {
+              click: function click($event) {
+                return _vm.editor.focus();
+              }
+            }
           }, [_c("textarea", {
-            directives: [{
-              name: "model",
-              rawName: "v-model",
-              value: _vm.value,
-              expression: "value"
-            }],
+            staticClass: "v-md-editor",
             style: _vm.styles,
             attrs: {
-              id: _vm.uid("input"),
-              name: _vm.name
-            },
-            domProps: {
-              value: _vm.value
-            },
-            on: {
-              input: function input($event) {
-                if ($event.target.composing) {
-                  return;
-                }
-
-                _vm.value = $event.target.value;
-              }
+              id: _vm.id
             }
           }), _vm._v(" "), _vm.preview ? _c("div", {
             staticClass: "v-md-preview",
-            attrs: {
-              id: _vm.uid("html-preview")
-            },
             domProps: {
               innerHTML: _vm._s(_vm.html)
             }
@@ -1299,7 +1133,7 @@
             if (options.functional) {
               // for template-only hot-reload because in that case the render fn doesn't
               // go through the normalizer
-              options._injectStyles = hook; // register for functioal component in vue file
+              options._injectStyles = hook; // register for functional component in vue file
 
               var originalRender = options.render;
 
@@ -1464,7 +1298,27 @@
         /* harmony import */
 
 
-        var _editor_vue__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(
+        var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(
+        /*! codemirror/lib/codemirror.css */
+        "codemirror/lib/codemirror.css");
+        /* harmony import */
+
+
+        var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__);
+        /* harmony import */
+
+
+        var _index_css__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(
+        /*! ./index.css */
+        "./src/index.css");
+        /* harmony import */
+
+
+        var _index_css__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_index_css__WEBPACK_IMPORTED_MODULE_1__);
+        /* harmony import */
+
+
+        var _editor_vue__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(
         /*! ./editor.vue */
         "./src/editor.vue");
 
@@ -1475,7 +1329,7 @@
             }
 
             Vue.__md_editor_installed = true;
-            Vue.component('markdown-editor', _editor_vue__WEBPACK_IMPORTED_MODULE_0__["default"]);
+            Vue.component('markdown-editor', _editor_vue__WEBPACK_IMPORTED_MODULE_2__["default"]);
           }
         };
 
@@ -1485,14 +1339,7 @@
         /* harmony default export */
 
 
-        __webpack_exports__["default"] = MarkdownEditor; // if (typeof exports == "object") {
-        //     module.exports = MarkdownEditor;
-        // } else if (typeof define == "function" && define.amd) {
-        //     define([], function () { return MarkdownEditor; })
-        // } else if (window.Vue) {
-        //     Vue.use(MarkdownEditor);
-        // }
-
+        __webpack_exports__["default"] = MarkdownEditor;
         /***/
       },
 
@@ -1538,20 +1385,6 @@
         /***/
       },
 
-      /***/
-      "codemirror/addon/selection/active-line.js":
-      /*!************************************************************!*\
-        !*** external "codemirror/addon/selection/active-line.js" ***!
-        \************************************************************/
-
-      /*! no static exports found */
-
-      /***/
-      function codemirrorAddonSelectionActiveLineJs(module, exports) {
-        module.exports = __webpack_require__(/*! codemirror/addon/selection/active-line.js */ "./node_modules/codemirror/addon/selection/active-line.js");
-        /***/
-      },
-
       /***/
       "codemirror/lib/codemirror.css":
       /*!************************************************!*\
@@ -1566,20 +1399,6 @@
         /***/
       },
 
-      /***/
-      "codemirror/mode/gfm/gfm.js":
-      /*!*********************************************!*\
-        !*** external "codemirror/mode/gfm/gfm.js" ***!
-        \*********************************************/
-
-      /*! no static exports found */
-
-      /***/
-      function codemirrorModeGfmGfmJs(module, exports) {
-        module.exports = __webpack_require__(/*! codemirror/mode/gfm/gfm.js */ "./node_modules/codemirror/mode/gfm/gfm.js");
-        /***/
-      },
-
       /***/
       "codemirror/mode/markdown/markdown.js":
       /*!*******************************************************!*\
@@ -1618,7 +1437,7 @@
 
       /***/
       function marked(module, exports) {
-        module.exports = __webpack_require__(/*! marked */ "./node_modules/marked/lib/marked.js");
+        module.exports = __webpack_require__(/*! marked */ "./node_modules/marked/src/marked.js");
         /***/
       }
       /******/
@@ -1718,18 +1537,14 @@ __webpack_require__.r(__webpack_exports__);
 //
 //
 //
-//
-//
-//
-//
 /* harmony default export */ __webpack_exports__["default"] = ({
   data: function data() {
     return {
-      value: 'Hello world',
+      value: 'Hello',
       custom: {
         'upload': {
           cmd: 'upload',
-          className: 'fas fa-upload',
+          ico: 'fas fa-cloud',
           title: 'Upload File'
         }
       }
@@ -1739,9 +1554,6 @@ __webpack_require__.r(__webpack_exports__);
     val: function val() {
       this.value = "jjkjlkjljlkjlkjlkjlkj";
     },
-    showModal: function showModal() {
-      $('#modal').modal('show');
-    },
     replace: function replace() {
       this.$refs.md.editor.replaceSelection("Handle editor");
     }
@@ -1878,210 +1690,32 @@ __webpack_require__.r(__webpack_exports__);
 
 /***/ }),
 
-/***/ "./node_modules/codemirror/addon/mode/overlay.js":
-/*!*******************************************************!*\
-  !*** ./node_modules/codemirror/addon/mode/overlay.js ***!
-  \*******************************************************/
+/***/ "./node_modules/codemirror/lib/codemirror.css":
+/*!****************************************************!*\
+  !*** ./node_modules/codemirror/lib/codemirror.css ***!
+  \****************************************************/
 /*! no static exports found */
 /***/ (function(module, exports, __webpack_require__) {
 
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: https://codemirror.net/LICENSE
-
-// Utility function that allows modes to be combined. The mode given
-// as the base argument takes care of most of the normal mode
-// functionality, but a second (typically simple) mode is used, which
-// can override the style of text. Both modes get to parse all of the
-// text, but when both assign a non-null style to a piece of code, the
-// overlay wins, unless the combine argument was true and not overridden,
-// or state.overlay.combineTokens was true, in which case the styles are
-// combined.
-
-(function(mod) {
-  if (true) // CommonJS
-    mod(__webpack_require__(/*! ../../lib/codemirror */ "./node_modules/codemirror/lib/codemirror.js"));
-  else {}
-})(function(CodeMirror) {
-"use strict";
-
-CodeMirror.overlayMode = function(base, overlay, combine) {
-  return {
-    startState: function() {
-      return {
-        base: CodeMirror.startState(base),
-        overlay: CodeMirror.startState(overlay),
-        basePos: 0, baseCur: null,
-        overlayPos: 0, overlayCur: null,
-        streamSeen: null
-      };
-    },
-    copyState: function(state) {
-      return {
-        base: CodeMirror.copyState(base, state.base),
-        overlay: CodeMirror.copyState(overlay, state.overlay),
-        basePos: state.basePos, baseCur: null,
-        overlayPos: state.overlayPos, overlayCur: null
-      };
-    },
-
-    token: function(stream, state) {
-      if (stream != state.streamSeen ||
-          Math.min(state.basePos, state.overlayPos) < stream.start) {
-        state.streamSeen = stream;
-        state.basePos = state.overlayPos = stream.start;
-      }
-
-      if (stream.start == state.basePos) {
-        state.baseCur = base.token(stream, state.base);
-        state.basePos = stream.pos;
-      }
-      if (stream.start == state.overlayPos) {
-        stream.pos = stream.start;
-        state.overlayCur = overlay.token(stream, state.overlay);
-        state.overlayPos = stream.pos;
-      }
-      stream.pos = Math.min(state.basePos, state.overlayPos);
-
-      // state.overlay.combineTokens always takes precedence over combine,
-      // unless set to null
-      if (state.overlayCur == null) return state.baseCur;
-      else if (state.baseCur != null &&
-               state.overlay.combineTokens ||
-               combine && state.overlay.combineTokens == null)
-        return state.baseCur + " " + state.overlayCur;
-      else return state.overlayCur;
-    },
-
-    indent: base.indent && function(state, textAfter, line) {
-      return base.indent(state.base, textAfter, line);
-    },
-    electricChars: base.electricChars,
-
-    innerMode: function(state) { return {state: state.base, mode: base}; },
-
-    blankLine: function(state) {
-      var baseToken, overlayToken;
-      if (base.blankLine) baseToken = base.blankLine(state.base);
-      if (overlay.blankLine) overlayToken = overlay.blankLine(state.overlay);
-
-      return overlayToken == null ?
-        baseToken :
-        (combine && baseToken != null ? baseToken + " " + overlayToken : overlayToken);
-    }
-  };
-};
-
-});
-
+// extracted by mini-css-extract-plugin
 
 /***/ }),
 
-/***/ "./node_modules/codemirror/addon/selection/active-line.js":
-/*!****************************************************************!*\
-  !*** ./node_modules/codemirror/addon/selection/active-line.js ***!
-  \****************************************************************/
+/***/ "./node_modules/codemirror/lib/codemirror.js":
+/*!***************************************************!*\
+  !*** ./node_modules/codemirror/lib/codemirror.js ***!
+  \***************************************************/
 /*! no static exports found */
 /***/ (function(module, exports, __webpack_require__) {
 
 // CodeMirror, copyright (c) by Marijn Haverbeke and others
 // Distributed under an MIT license: https://codemirror.net/LICENSE
 
-(function(mod) {
-  if (true) // CommonJS
-    mod(__webpack_require__(/*! ../../lib/codemirror */ "./node_modules/codemirror/lib/codemirror.js"));
-  else {}
-})(function(CodeMirror) {
-  "use strict";
-  var WRAP_CLASS = "CodeMirror-activeline";
-  var BACK_CLASS = "CodeMirror-activeline-background";
-  var GUTT_CLASS = "CodeMirror-activeline-gutter";
-
-  CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) {
-    var prev = old == CodeMirror.Init ? false : old;
-    if (val == prev) return
-    if (prev) {
-      cm.off("beforeSelectionChange", selectionChange);
-      clearActiveLines(cm);
-      delete cm.state.activeLines;
-    }
-    if (val) {
-      cm.state.activeLines = [];
-      updateActiveLines(cm, cm.listSelections());
-      cm.on("beforeSelectionChange", selectionChange);
-    }
-  });
-
-  function clearActiveLines(cm) {
-    for (var i = 0; i < cm.state.activeLines.length; i++) {
-      cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS);
-      cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS);
-      cm.removeLineClass(cm.state.activeLines[i], "gutter", GUTT_CLASS);
-    }
-  }
-
-  function sameArray(a, b) {
-    if (a.length != b.length) return false;
-    for (var i = 0; i < a.length; i++)
-      if (a[i] != b[i]) return false;
-    return true;
-  }
-
-  function updateActiveLines(cm, ranges) {
-    var active = [];
-    for (var i = 0; i < ranges.length; i++) {
-      var range = ranges[i];
-      var option = cm.getOption("styleActiveLine");
-      if (typeof option == "object" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty())
-        continue
-      var line = cm.getLineHandleVisualStart(range.head.line);
-      if (active[active.length - 1] != line) active.push(line);
-    }
-    if (sameArray(cm.state.activeLines, active)) return;
-    cm.operation(function() {
-      clearActiveLines(cm);
-      for (var i = 0; i < active.length; i++) {
-        cm.addLineClass(active[i], "wrap", WRAP_CLASS);
-        cm.addLineClass(active[i], "background", BACK_CLASS);
-        cm.addLineClass(active[i], "gutter", GUTT_CLASS);
-      }
-      cm.state.activeLines = active;
-    });
-  }
-
-  function selectionChange(cm, sel) {
-    updateActiveLines(cm, sel.ranges);
-  }
-});
-
-
-/***/ }),
-
-/***/ "./node_modules/codemirror/lib/codemirror.css":
-/*!****************************************************!*\
-  !*** ./node_modules/codemirror/lib/codemirror.css ***!
-  \****************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-// extracted by mini-css-extract-plugin
-
-/***/ }),
-
-/***/ "./node_modules/codemirror/lib/codemirror.js":
-/*!***************************************************!*\
-  !*** ./node_modules/codemirror/lib/codemirror.js ***!
-  \***************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: https://codemirror.net/LICENSE
-
-// This is CodeMirror (https://codemirror.net), a code editor
-// implemented in JavaScript on top of the browser's DOM.
-//
-// You can find some technical background for some of the code below
-// at http://marijnhaverbeke.nl/blog/#cm-internals .
+// This is CodeMirror (https://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
 
 (function (global, factory) {
    true ? module.exports = factory() :
@@ -2560,14 +2194,15 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
           for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
           order.push(new BidiSpan(0, start, i$7));
         } else {
-          var pos = i$7, at = order.length;
+          var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0;
           for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
           for (var j$2 = pos; j$2 < i$7;) {
             if (countsAsNum.test(types[j$2])) {
-              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); }
+              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }
               var nstart = j$2;
               for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
               order.splice(at, 0, new BidiSpan(2, nstart, j$2));
+              at += isRTL;
               pos = j$2;
             } else { ++j$2; }
           }
@@ -2611,8 +2246,8 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     } else if (emitter.attachEvent) {
       emitter.attachEvent("on" + type, f);
     } else {
-      var map$$1 = emitter._handlers || (emitter._handlers = {});
-      map$$1[type] = (map$$1[type] || noHandlers).concat(f);
+      var map = emitter._handlers || (emitter._handlers = {});
+      map[type] = (map[type] || noHandlers).concat(f);
     }
   };
 
@@ -2626,11 +2261,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     } else if (emitter.detachEvent) {
       emitter.detachEvent("on" + type, f);
     } else {
-      var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type];
+      var map = emitter._handlers, arr = map && map[type];
       if (arr) {
         var index = indexOf(arr, f);
         if (index > -1)
-          { map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
+          { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
       }
     }
   }
@@ -2758,11 +2393,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     try { return te.selectionStart != te.selectionEnd }
     catch(e) { return false }
   } : function (te) {
-    var range$$1;
-    try {range$$1 = te.ownerDocument.selection.createRange();}
+    var range;
+    try {range = te.ownerDocument.selection.createRange();}
     catch(e) {}
-    if (!range$$1 || range$$1.parentElement() != te) { return false }
-    return range$$1.compareEndPoints("StartToEnd", range$$1) != 0
+    if (!range || range.parentElement() != te) { return false }
+    return range.compareEndPoints("StartToEnd", range) != 0
   };
 
   var hasCopyEvent = (function () {
@@ -2910,10 +2545,8 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     return this.pos > start
   };
   StringStream.prototype.eatSpace = function () {
-      var this$1 = this;
-
     var start = this.pos;
-    while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; }
+    while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
     return this.pos > start
   };
   StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
@@ -3109,11 +2742,9 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   };
 
   Context.prototype.baseToken = function (n) {
-      var this$1 = this;
-
     if (!this.baseTokens) { return null }
     while (this.baseTokens[this.baseTokenPos] <= n)
-      { this$1.baseTokenPos += 2; }
+      { this.baseTokenPos += 2; }
     var type = this.baseTokens[this.baseTokenPos + 1];
     return {type: type && type.replace(/( |^)overlay .*/, ""),
             size: this.baseTokens[this.baseTokenPos] - n}
@@ -3602,8 +3233,8 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   // Test whether there exists a collapsed span that partially
   // overlaps (covers the start or end, but not both) of a new span.
   // Such overlap is not allowed.
-  function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) {
-    var line = getLine(doc, lineNo$$1);
+  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+    var line = getLine(doc, lineNo);
     var sps = sawCollapsedSpans && line.markedSpans;
     if (sps) { for (var i = 0; i < sps.length; ++i) {
       var sp = sps[i];
@@ -4284,10 +3915,10 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
   function updateLineWidgets(cm, lineView, dims) {
     if (lineView.alignable) { lineView.alignable = null; }
+    var isWidget = classTest("CodeMirror-linewidget");
     for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
       next = node.nextSibling;
-      if (node.className == "CodeMirror-linewidget")
-        { lineView.node.removeChild(node); }
+      if (isWidget.test(node.className)) { lineView.node.removeChild(node); }
     }
     insertLineWidgets(cm, lineView, dims);
   }
@@ -4317,7 +3948,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     if (!line.widgets) { return }
     var wrap = ensureLineWrapped(lineView);
     for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
-      var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
+      var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""));
       if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
       positionLineWidget(widget, node, lineView, dims);
       cm.display.input.setUneditable(node);
@@ -4505,36 +4136,36 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
   var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
 
-  function nodeAndOffsetInLineMap(map$$1, ch, bias) {
+  function nodeAndOffsetInLineMap(map, ch, bias) {
     var node, start, end, collapse, mStart, mEnd;
     // First, search the line map for the text node corresponding to,
     // or closest to, the target character.
-    for (var i = 0; i < map$$1.length; i += 3) {
-      mStart = map$$1[i];
-      mEnd = map$$1[i + 1];
+    for (var i = 0; i < map.length; i += 3) {
+      mStart = map[i];
+      mEnd = map[i + 1];
       if (ch < mStart) {
         start = 0; end = 1;
         collapse = "left";
       } else if (ch < mEnd) {
         start = ch - mStart;
         end = start + 1;
-      } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) {
+      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
         end = mEnd - mStart;
         start = end - 1;
         if (ch >= mEnd) { collapse = "right"; }
       }
       if (start != null) {
-        node = map$$1[i + 2];
+        node = map[i + 2];
         if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
           { collapse = bias; }
         if (bias == "left" && start == 0)
-          { while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) {
-            node = map$$1[(i -= 3) + 2];
+          { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+            node = map[(i -= 3) + 2];
             collapse = "left";
           } }
         if (bias == "right" && start == mEnd - mStart)
-          { while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) {
-            node = map$$1[(i += 3) + 2];
+          { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+            node = map[(i += 3) + 2];
             collapse = "right";
           } }
         break
@@ -4817,13 +4448,13 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
   }
 
-  function coordsCharInner(cm, lineObj, lineNo$$1, x, y) {
+  function coordsCharInner(cm, lineObj, lineNo, x, y) {
     // Move y into line-local coordinate space
     y -= heightAtLine(lineObj);
     var preparedMeasure = prepareMeasureForLine(cm, lineObj);
     // When directly calling `measureCharPrepared`, we have to adjust
     // for the widgets at this line.
-    var widgetHeight$$1 = widgetTopHeight(lineObj);
+    var widgetHeight = widgetTopHeight(lineObj);
     var begin = 0, end = lineObj.text.length, ltr = true;
 
     var order = getOrder(lineObj, cm.doc.direction);
@@ -4831,7 +4462,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     // which bidi section the coordinates fall into.
     if (order) {
       var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
-                   (cm, lineObj, lineNo$$1, preparedMeasure, order, x, y);
+                   (cm, lineObj, lineNo, preparedMeasure, order, x, y);
       ltr = part.level != 1;
       // The awkward -1 offsets are needed because findFirst (called
       // on these below) will treat its first bound as inclusive,
@@ -4847,7 +4478,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     var chAround = null, boxAround = null;
     var ch = findFirst(function (ch) {
       var box = measureCharPrepared(cm, preparedMeasure, ch);
-      box.top += widgetHeight$$1; box.bottom += widgetHeight$$1;
+      box.top += widgetHeight; box.bottom += widgetHeight;
       if (!boxIsAfter(box, x, y, false)) { return false }
       if (box.top <= y && box.left <= x) {
         chAround = ch;
@@ -4871,27 +4502,27 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       // left of the character and compare it's vertical position to the
       // coordinates
       sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
-        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y) == ltr ?
+        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
         "after" : "before";
       // Now get accurate coordinates for this place, in order to get a
       // base X position
-      var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), "line", lineObj, preparedMeasure);
+      var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
       baseX = coords.left;
       outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
     }
 
     ch = skipExtendingChars(lineObj.text, ch, 1);
-    return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX)
+    return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
   }
 
-  function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) {
+  function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
     // Bidi parts are sorted left-to-right, and in a non-line-wrapping
     // situation, we can take this ordering to correspond to the visual
     // ordering. This finds the first part whose end is after the given
     // coordinates.
     var index = findFirst(function (i) {
       var part = order[i], ltr = part.level != 1;
-      return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? "before" : "after"),
+      return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
                                      "line", lineObj, preparedMeasure), x, y, true)
     }, 0, order.length - 1);
     var part = order[index];
@@ -4900,7 +4531,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     // that start, move one part back.
     if (index > 0) {
       var ltr = part.level != 1;
-      var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? "after" : "before"),
+      var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
                                "line", lineObj, preparedMeasure);
       if (boxIsAfter(start, x, y, true) && start.top > y)
         { part = order[index - 1]; }
@@ -5040,7 +4671,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     try { x = e.clientX - space.left; y = e.clientY - space.top; }
     catch (e) { return null }
     var coords = coordsChar(cm, x, y), line;
-    if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+    if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
       var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
       coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
     }
@@ -5221,13 +4852,13 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
     for (var i = 0; i < doc.sel.ranges.length; i++) {
       if (!primary && i == doc.sel.primIndex) { continue }
-      var range$$1 = doc.sel.ranges[i];
-      if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue }
-      var collapsed = range$$1.empty();
+      var range = doc.sel.ranges[i];
+      if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
+      var collapsed = range.empty();
       if (collapsed || cm.options.showCursorWhenSelecting)
-        { drawSelectionCursor(cm, range$$1.head, curFragment); }
+        { drawSelectionCursor(cm, range.head, curFragment); }
       if (!collapsed)
-        { drawSelectionRange(cm, range$$1, selFragment); }
+        { drawSelectionRange(cm, range, selFragment); }
     }
     return result
   }
@@ -5254,7 +4885,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
 
   // Draws the given range as a highlighted selection
-  function drawSelectionRange(cm, range$$1, output) {
+  function drawSelectionRange(cm, range, output) {
     var display = cm.display, doc = cm.doc;
     var fragment = document.createDocumentFragment();
     var padding = paddingH(cm.display), leftSide = padding.left;
@@ -5323,7 +4954,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       return {start: start, end: end}
     }
 
-    var sFrom = range$$1.from(), sTo = range$$1.to();
+    var sFrom = range.from(), sTo = range.to();
     if (sFrom.line == sTo.line) {
       drawForLine(sFrom.line, sFrom.ch, sTo.ch);
     } else {
@@ -5590,9 +5221,9 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     if (y != null) { cm.curOp.scrollTop = y; }
   }
 
-  function scrollToRange(cm, range$$1) {
+  function scrollToRange(cm, range) {
     resolveScrollToPos(cm);
-    cm.curOp.scrollToPos = range$$1;
+    cm.curOp.scrollToPos = range;
   }
 
   // When an operation has its scrollToPos property set, and another
@@ -5600,11 +5231,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   // 'simulates' scrolling that position into view in a cheap way, so
   // that the effect of intermediate scroll commands is not ignored.
   function resolveScrollToPos(cm) {
-    var range$$1 = cm.curOp.scrollToPos;
-    if (range$$1) {
+    var range = cm.curOp.scrollToPos;
+    if (range) {
       cm.curOp.scrollToPos = null;
-      var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to);
-      scrollToCoordsRange(cm, from, to, range$$1.margin);
+      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
+      scrollToCoordsRange(cm, from, to, range.margin);
     }
   }
 
@@ -5629,7 +5260,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   }
 
   function setScrollTop(cm, val, forceScroll) {
-    val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val);
+    val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));
     if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
     cm.doc.scrollTop = val;
     cm.display.scrollbars.setScrollTop(val);
@@ -5639,7 +5270,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   // Sync scroller and scrollbar, ensure the gutter elements are
   // aligned.
   function setScrollLeft(cm, val, isScroller, forceScroll) {
-    val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
+    val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
     if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
     cm.doc.scrollLeft = val;
     alignHorizontally(cm);
@@ -5751,9 +5382,9 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       // (when the bar is hidden). If it is still visible, we keep
       // it enabled, if it's hidden, we disable pointer events.
       var box = bar.getBoundingClientRect();
-      var elt$$1 = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
+      var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
           : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
-      if (elt$$1 != bar) { bar.style.pointerEvents = "none"; }
+      if (elt != bar) { bar.style.pointerEvents = "none"; }
       else { delay.set(1000, maybeDisable); }
     }
     delay.set(1000, maybeDisable);
@@ -6093,10 +5724,8 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       { this.events.push(arguments); }
   };
   DisplayUpdate.prototype.finish = function () {
-      var this$1 = this;
-
     for (var i = 0; i < this.events.length; i++)
-      { signal.apply(null, this$1.events[i]); }
+      { signal.apply(null, this.events[i]); }
   };
 
   function maybeClipScrollbars(cm) {
@@ -6131,11 +5760,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
     snapshot.activeElt.focus();
     if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
-      var sel = window.getSelection(), range$$1 = document.createRange();
-      range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
-      range$$1.collapse(false);
+      var sel = window.getSelection(), range = document.createRange();
+      range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
+      range.collapse(false);
       sel.removeAllRanges();
-      sel.addRange(range$$1);
+      sel.addRange(range);
       sel.extend(snapshot.focusNode, snapshot.focusOffset);
     }
   }
@@ -6628,40 +6257,32 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
 
   Selection.prototype.equals = function (other) {
-      var this$1 = this;
-
     if (other == this) { return true }
     if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
     for (var i = 0; i < this.ranges.length; i++) {
-      var here = this$1.ranges[i], there = other.ranges[i];
+      var here = this.ranges[i], there = other.ranges[i];
       if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
     }
     return true
   };
 
   Selection.prototype.deepCopy = function () {
-      var this$1 = this;
-
     var out = [];
     for (var i = 0; i < this.ranges.length; i++)
-      { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); }
+      { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }
     return new Selection(out, this.primIndex)
   };
 
   Selection.prototype.somethingSelected = function () {
-      var this$1 = this;
-
     for (var i = 0; i < this.ranges.length; i++)
-      { if (!this$1.ranges[i].empty()) { return true } }
+      { if (!this.ranges[i].empty()) { return true } }
     return false
   };
 
   Selection.prototype.contains = function (pos, end) {
-      var this$1 = this;
-
     if (!end) { end = pos; }
     for (var i = 0; i < this.ranges.length; i++) {
-      var range = this$1.ranges[i];
+      var range = this.ranges[i];
       if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
         { return i }
     }
@@ -6787,16 +6408,16 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   }
 
   // Perform a change on the document data structure.
-  function updateDoc(doc, change, markedSpans, estimateHeight$$1) {
+  function updateDoc(doc, change, markedSpans, estimateHeight) {
     function spansFor(n) {return markedSpans ? markedSpans[n] : null}
     function update(line, text, spans) {
-      updateLine(line, text, spans, estimateHeight$$1);
+      updateLine(line, text, spans, estimateHeight);
       signalLater(line, "change", line, change);
     }
     function linesFor(start, end) {
       var result = [];
       for (var i = start; i < end; ++i)
-        { result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); }
+        { result.push(new Line(text[i], spansFor(i), estimateHeight)); }
       return result
     }
 
@@ -6820,7 +6441,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
         update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
       } else {
         var added$1 = linesFor(1, text.length - 1);
-        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1));
+        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
         update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
         doc.insert(from.line + 1, added$1);
       }
@@ -7157,11 +6778,9 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     var obj = {
       ranges: sel.ranges,
       update: function(ranges) {
-        var this$1 = this;
-
         this.ranges = [];
         for (var i = 0; i < ranges.length; i++)
-          { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+          { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
                                      clipPos(doc, ranges[i].head)); }
       },
       origin: options && options.origin
@@ -7648,13 +7267,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
 
   function LeafChunk(lines) {
-    var this$1 = this;
-
     this.lines = lines;
     this.parent = null;
     var height = 0;
     for (var i = 0; i < lines.length; ++i) {
-      lines[i].parent = this$1;
+      lines[i].parent = this;
       height += lines[i].height;
     }
     this.height = height;
@@ -7665,11 +7282,9 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
     // Remove the n lines at offset 'at'.
     removeInner: function(at, n) {
-      var this$1 = this;
-
       for (var i = at, e = at + n; i < e; ++i) {
-        var line = this$1.lines[i];
-        this$1.height -= line.height;
+        var line = this.lines[i];
+        this.height -= line.height;
         cleanUpLine(line);
         signalLater(line, "delete");
       }
@@ -7684,31 +7299,25 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     // Insert the given array of lines at offset 'at', count them as
     // having the given height.
     insertInner: function(at, lines, height) {
-      var this$1 = this;
-
       this.height += height;
       this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
-      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; }
+      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }
     },
 
     // Used to iterate over a part of the tree.
     iterN: function(at, n, op) {
-      var this$1 = this;
-
       for (var e = at + n; at < e; ++at)
-        { if (op(this$1.lines[at])) { return true } }
+        { if (op(this.lines[at])) { return true } }
     }
   };
 
   function BranchChunk(children) {
-    var this$1 = this;
-
     this.children = children;
     var size = 0, height = 0;
     for (var i = 0; i < children.length; ++i) {
       var ch = children[i];
       size += ch.chunkSize(); height += ch.height;
-      ch.parent = this$1;
+      ch.parent = this;
     }
     this.size = size;
     this.height = height;
@@ -7719,16 +7328,14 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     chunkSize: function() { return this.size },
 
     removeInner: function(at, n) {
-      var this$1 = this;
-
       this.size -= n;
       for (var i = 0; i < this.children.length; ++i) {
-        var child = this$1.children[i], sz = child.chunkSize();
+        var child = this.children[i], sz = child.chunkSize();
         if (at < sz) {
           var rm = Math.min(n, sz - at), oldHeight = child.height;
           child.removeInner(at, rm);
-          this$1.height -= oldHeight - child.height;
-          if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; }
+          this.height -= oldHeight - child.height;
+          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
           if ((n -= rm) == 0) { break }
           at = 0;
         } else { at -= sz; }
@@ -7745,18 +7352,14 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     },
 
     collapse: function(lines) {
-      var this$1 = this;
-
-      for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); }
+      for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }
     },
 
     insertInner: function(at, lines, height) {
-      var this$1 = this;
-
       this.size += lines.length;
       this.height += height;
       for (var i = 0; i < this.children.length; ++i) {
-        var child = this$1.children[i], sz = child.chunkSize();
+        var child = this.children[i], sz = child.chunkSize();
         if (at <= sz) {
           child.insertInner(at, lines, height);
           if (child.lines && child.lines.length > 50) {
@@ -7766,11 +7369,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
             for (var pos = remaining; pos < child.lines.length;) {
               var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
               child.height -= leaf.height;
-              this$1.children.splice(++i, 0, leaf);
-              leaf.parent = this$1;
+              this.children.splice(++i, 0, leaf);
+              leaf.parent = this;
             }
             child.lines = child.lines.slice(0, remaining);
-            this$1.maybeSpill();
+            this.maybeSpill();
           }
           break
         }
@@ -7802,10 +7405,8 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     },
 
     iterN: function(at, n, op) {
-      var this$1 = this;
-
       for (var i = 0; i < this.children.length; ++i) {
-        var child = this$1.children[i], sz = child.chunkSize();
+        var child = this.children[i], sz = child.chunkSize();
         if (at < sz) {
           var used = Math.min(n, sz - at);
           if (child.iterN(at, used, op)) { return true }
@@ -7819,20 +7420,16 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   // Line widgets are block elements displayed above or below a line.
 
   var LineWidget = function(doc, node, options) {
-    var this$1 = this;
-
     if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
-      { this$1[opt] = options[opt]; } } }
+      { this[opt] = options[opt]; } } }
     this.doc = doc;
     this.node = node;
   };
 
   LineWidget.prototype.clear = function () {
-      var this$1 = this;
-
     var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
     if (no == null || !ws) { return }
-    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } }
+    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }
     if (!ws.length) { line.widgets = null; }
     var height = widgetHeight(this);
     updateLineHeight(line, Math.max(0, line.height - height));
@@ -7915,8 +7512,6 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
   // Clear the marker.
   TextMarker.prototype.clear = function () {
-      var this$1 = this;
-
     if (this.explicitlyCleared) { return }
     var cm = this.doc.cm, withOp = cm && !cm.curOp;
     if (withOp) { startOperation(cm); }
@@ -7926,19 +7521,19 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     }
     var min = null, max = null;
     for (var i = 0; i < this.lines.length; ++i) {
-      var line = this$1.lines[i];
-      var span = getMarkedSpanFor(line.markedSpans, this$1);
-      if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text"); }
+      var line = this.lines[i];
+      var span = getMarkedSpanFor(line.markedSpans, this);
+      if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); }
       else if (cm) {
         if (span.to != null) { max = lineNo(line); }
         if (span.from != null) { min = lineNo(line); }
       }
       line.markedSpans = removeMarkedSpan(line.markedSpans, span);
-      if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)
+      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
         { updateLineHeight(line, textHeight(cm.display)); }
     }
     if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
-      var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual);
+      var visual = visualLine(this.lines[i$1]), len = lineLength(visual);
       if (len > cm.display.maxLineLength) {
         cm.display.maxLine = visual;
         cm.display.maxLineLength = len;
@@ -7964,13 +7559,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   // Pos objects returned contain a line object, rather than a line
   // number (used to prevent looking up the same line twice).
   TextMarker.prototype.find = function (side, lineObj) {
-      var this$1 = this;
-
     if (side == null && this.type == "bookmark") { side = 1; }
     var from, to;
     for (var i = 0; i < this.lines.length; ++i) {
-      var line = this$1.lines[i];
-      var span = getMarkedSpanFor(line.markedSpans, this$1);
+      var line = this.lines[i];
+      var span = getMarkedSpanFor(line.markedSpans, this);
       if (span.from != null) {
         from = Pos(lineObj ? line : lineNo(line), span.from);
         if (side == -1) { return from }
@@ -8104,21 +7697,17 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
   // implemented as a meta-marker-object controlling multiple normal
   // markers.
   var SharedTextMarker = function(markers, primary) {
-    var this$1 = this;
-
     this.markers = markers;
     this.primary = primary;
     for (var i = 0; i < markers.length; ++i)
-      { markers[i].parent = this$1; }
+      { markers[i].parent = this; }
   };
 
   SharedTextMarker.prototype.clear = function () {
-      var this$1 = this;
-
     if (this.explicitlyCleared) { return }
     this.explicitlyCleared = true;
     for (var i = 0; i < this.markers.length; ++i)
-      { this$1.markers[i].clear(); }
+      { this.markers[i].clear(); }
     signalLater(this, "clear");
   };
 
@@ -8261,11 +7850,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     clipPos: function(pos) {return clipPos(this, pos)},
 
     getCursor: function(start) {
-      var range$$1 = this.sel.primary(), pos;
-      if (start == null || start == "head") { pos = range$$1.head; }
-      else if (start == "anchor") { pos = range$$1.anchor; }
-      else if (start == "end" || start == "to" || start === false) { pos = range$$1.to(); }
-      else { pos = range$$1.from(); }
+      var range = this.sel.primary(), pos;
+      if (start == null || start == "head") { pos = range.head; }
+      else if (start == "anchor") { pos = range.anchor; }
+      else if (start == "end" || start == "to" || start === false) { pos = range.to(); }
+      else { pos = range.from(); }
       return pos
     },
     listSelections: function() { return this.sel.ranges },
@@ -8288,13 +7877,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       extendSelections(this, clipPosArray(this, heads), options);
     }),
     setSelections: docMethodOp(function(ranges, primary, options) {
-      var this$1 = this;
-
       if (!ranges.length) { return }
       var out = [];
       for (var i = 0; i < ranges.length; i++)
-        { out[i] = new Range(clipPos(this$1, ranges[i].anchor),
-                           clipPos(this$1, ranges[i].head)); }
+        { out[i] = new Range(clipPos(this, ranges[i].anchor),
+                           clipPos(this, ranges[i].head)); }
       if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
       setSelection(this, normalizeSelection(this.cm, out, primary), options);
     }),
@@ -8305,23 +7892,19 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     }),
 
     getSelection: function(lineSep) {
-      var this$1 = this;
-
       var ranges = this.sel.ranges, lines;
       for (var i = 0; i < ranges.length; i++) {
-        var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
+        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
         lines = lines ? lines.concat(sel) : sel;
       }
       if (lineSep === false) { return lines }
       else { return lines.join(lineSep || this.lineSeparator()) }
     },
     getSelections: function(lineSep) {
-      var this$1 = this;
-
       var parts = [], ranges = this.sel.ranges;
       for (var i = 0; i < ranges.length; i++) {
-        var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
-        if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); }
+        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+        if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }
         parts[i] = sel;
       }
       return parts
@@ -8333,16 +7916,14 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       this.replaceSelections(dup, collapse, origin || "+input");
     },
     replaceSelections: docMethodOp(function(code, collapse, origin) {
-      var this$1 = this;
-
       var changes = [], sel = this.sel;
       for (var i = 0; i < sel.ranges.length; i++) {
-        var range$$1 = sel.ranges[i];
-        changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin};
+        var range = sel.ranges[i];
+        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
       }
       var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
       for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
-        { makeChange(this$1, changes[i$1]); }
+        { makeChange(this, changes[i$1]); }
       if (newSel) { setSelectionReplaceHistory(this, newSel); }
       else if (this.cm) { ensureCursorVisible(this.cm); }
     }),
@@ -8360,7 +7941,12 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
       return {undo: done, redo: undone}
     },
-    clearHistory: function() {this.history = new History(this.history.maxGeneration);},
+    clearHistory: function() {
+      var this$1 = this;
+
+      this.history = new History(this.history.maxGeneration);
+      linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);
+    },
 
     markClean: function() {
       this.cleanGeneration = this.changeGeneration(true);
@@ -8481,18 +8067,18 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     },
     findMarks: function(from, to, filter) {
       from = clipPos(this, from); to = clipPos(this, to);
-      var found = [], lineNo$$1 = from.line;
+      var found = [], lineNo = from.line;
       this.iter(from.line, to.line + 1, function (line) {
         var spans = line.markedSpans;
         if (spans) { for (var i = 0; i < spans.length; i++) {
           var span = spans[i];
-          if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to ||
-                span.from == null && lineNo$$1 != from.line ||
-                span.from != null && lineNo$$1 == to.line && span.from >= to.ch) &&
+          if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
+                span.from == null && lineNo != from.line ||
+                span.from != null && lineNo == to.line && span.from >= to.ch) &&
               (!filter || filter(span.marker)))
             { found.push(span.marker.parent || span.marker); }
         } }
-        ++lineNo$$1;
+        ++lineNo;
       });
       return found
     },
@@ -8507,14 +8093,14 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     },
 
     posFromIndex: function(off) {
-      var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length;
+      var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
       this.iter(function (line) {
         var sz = line.text.length + sepSize;
         if (sz > off) { ch = off; return true }
         off -= sz;
-        ++lineNo$$1;
+        ++lineNo;
       });
-      return clipPos(this, Pos(lineNo$$1, ch))
+      return clipPos(this, Pos(lineNo, ch))
     },
     indexFromPos: function (coords) {
       coords = clipPos(this, coords);
@@ -8553,15 +8139,13 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       return copy
     },
     unlinkDoc: function(other) {
-      var this$1 = this;
-
       if (other instanceof CodeMirror) { other = other.doc; }
       if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
-        var link = this$1.linked[i];
+        var link = this.linked[i];
         if (link.doc != other) { continue }
-        this$1.linked.splice(i, 1);
-        other.unlinkDoc(this$1);
-        detachSharedMarkers(findSharedMarkers(this$1));
+        this.linked.splice(i, 1);
+        other.unlinkDoc(this);
+        detachSharedMarkers(findSharedMarkers(this));
         break
       } }
       // If the histories were shared, split them again
@@ -8613,28 +8197,39 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     // and insert it.
     if (files && files.length && window.FileReader && window.File) {
       var n = files.length, text = Array(n), read = 0;
-      var loadFile = function (file, i) {
-        if (cm.options.allowDropFileTypes &&
-            indexOf(cm.options.allowDropFileTypes, file.type) == -1)
-          { return }
-
-        var reader = new FileReader;
-        reader.onload = operation(cm, function () {
-          var content = reader.result;
-          if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = ""; }
-          text[i] = content;
-          if (++read == n) {
+      var markAsReadAndPasteIfAllFilesAreRead = function () {
+        if (++read == n) {
+          operation(cm, function () {
             pos = clipPos(cm.doc, pos);
             var change = {from: pos, to: pos,
-                          text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+                          text: cm.doc.splitLines(
+                              text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),
                           origin: "paste"};
             makeChange(cm.doc, change);
-            setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
+            setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));
+          })();
+        }
+      };
+      var readTextFromFile = function (file, i) {
+        if (cm.options.allowDropFileTypes &&
+            indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
+          markAsReadAndPasteIfAllFilesAreRead();
+          return
+        }
+        var reader = new FileReader;
+        reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };
+        reader.onload = function () {
+          var content = reader.result;
+          if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
+            markAsReadAndPasteIfAllFilesAreRead();
+            return
           }
-        });
+          text[i] = content;
+          markAsReadAndPasteIfAllFilesAreRead();
+        };
         reader.readAsText(file);
       };
-      for (var i = 0; i < n; ++i) { loadFile(files[i], i); }
+      for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }
     } else { // Normal drop
       // Don't do a replace if the drop happened inside of the selected text.
       if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
@@ -8859,18 +8454,18 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     return keymap
   }
 
-  function lookupKey(key, map$$1, handle, context) {
-    map$$1 = getKeyMap(map$$1);
-    var found = map$$1.call ? map$$1.call(key, context) : map$$1[key];
+  function lookupKey(key, map, handle, context) {
+    map = getKeyMap(map);
+    var found = map.call ? map.call(key, context) : map[key];
     if (found === false) { return "nothing" }
     if (found === "...") { return "multi" }
     if (found != null && handle(found)) { return "handled" }
 
-    if (map$$1.fallthrough) {
-      if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]")
-        { return lookupKey(key, map$$1.fallthrough, handle, context) }
-      for (var i = 0; i < map$$1.fallthrough.length; i++) {
-        var result = lookupKey(key, map$$1.fallthrough[i], handle, context);
+    if (map.fallthrough) {
+      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+        { return lookupKey(key, map.fallthrough, handle, context) }
+      for (var i = 0; i < map.fallthrough.length; i++) {
+        var result = lookupKey(key, map.fallthrough[i], handle, context);
         if (result) { return result }
       }
     }
@@ -8944,6 +8539,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
   function endOfLine(visually, cm, lineObj, lineNo, dir) {
     if (visually) {
+      if (cm.doc.direction == "rtl") { dir = -dir; }
       var order = getOrder(lineObj, cm.doc.direction);
       if (order) {
         var part = dir < 0 ? lst(order) : order[0];
@@ -9198,7 +8794,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     var line = getLine(cm.doc, start.line);
     var order = getOrder(line, cm.doc.direction);
     if (!order || order[0].level == 0) {
-      var firstNonWS = Math.max(0, line.text.search(/\S/));
+      var firstNonWS = Math.max(start.ch, line.text.search(/\S/));
       var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
       return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
     }
@@ -9314,6 +8910,8 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
         { cm.replaceSelection("", null, "cut"); }
     }
+    if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)
+      { document.execCommand("cut"); }
 
     // Turn mouse into crosshair when Alt is held on Mac.
     if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
@@ -9545,11 +9143,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       start = posFromMouse(cm, event, true, true);
       ourIndex = -1;
     } else {
-      var range$$1 = rangeForUnit(cm, start, behavior.unit);
+      var range = rangeForUnit(cm, start, behavior.unit);
       if (behavior.extend)
-        { ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend); }
+        { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }
       else
-        { ourRange = range$$1; }
+        { ourRange = range; }
     }
 
     if (!behavior.addNew) {
@@ -9592,14 +9190,14 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
         cm.scrollIntoView(pos);
       } else {
         var oldRange = ourRange;
-        var range$$1 = rangeForUnit(cm, pos, behavior.unit);
+        var range = rangeForUnit(cm, pos, behavior.unit);
         var anchor = oldRange.anchor, head;
-        if (cmp(range$$1.anchor, anchor) > 0) {
-          head = range$$1.head;
-          anchor = minPos(oldRange.from(), range$$1.anchor);
+        if (cmp(range.anchor, anchor) > 0) {
+          head = range.head;
+          anchor = minPos(oldRange.from(), range.anchor);
         } else {
-          head = range$$1.anchor;
-          anchor = maxPos(oldRange.to(), range$$1.head);
+          head = range.anchor;
+          anchor = maxPos(oldRange.to(), range.head);
         }
         var ranges$1 = startSel.ranges.slice(0);
         ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));
@@ -9661,17 +9259,17 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
   // Used when mouse-selecting to adjust the anchor to the proper side
   // of a bidi jump depending on the visual position of the head.
-  function bidiSimplify(cm, range$$1) {
-    var anchor = range$$1.anchor;
-    var head = range$$1.head;
+  function bidiSimplify(cm, range) {
+    var anchor = range.anchor;
+    var head = range.head;
     var anchorLine = getLine(cm.doc, anchor.line);
-    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range$$1 }
+    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
     var order = getOrder(anchorLine);
-    if (!order) { return range$$1 }
+    if (!order) { return range }
     var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
-    if (part.from != anchor.ch && part.to != anchor.ch) { return range$$1 }
+    if (part.from != anchor.ch && part.to != anchor.ch) { return range }
     var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
-    if (boundary == 0 || boundary == order.length) { return range$$1 }
+    if (boundary == 0 || boundary == order.length) { return range }
 
     // Compute the relative visual position of the head compared to the
     // anchor (<0 is to the left, >0 to the right)
@@ -9690,7 +9288,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     var usePart = order[boundary + (leftSide ? -1 : 0)];
     var from = leftSide == (usePart.level == 1);
     var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
-    return anchor.ch == ch && anchor.sticky == sticky ? range$$1 : new Range(new Pos(anchor.line, ch, sticky), head)
+    return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
   }
 
 
@@ -9982,10 +9580,10 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       { onBlur(this); }
 
     for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
-      { optionHandlers[opt](this$1, options[opt], Init); } }
+      { optionHandlers[opt](this, options[opt], Init); } }
     maybeUpdateLineNumberWidth(this);
     if (options.finishInit) { options.finishInit(this); }
-    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1); }
+    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }
     endOperation(this);
     // Suppress optimizelegibility in Webkit, since it breaks text
     // measuring on line wrapping boundaries.
@@ -10019,6 +9617,9 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     // which point we can't mess with it anymore. Context menu is
     // handled in onMouseDown for these browsers.
     on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
+    on(d.input.getField(), "contextmenu", function (e) {
+      if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }
+    });
 
     // Used to suppress mouse event handling when a touch happens
     var touchFinished, prevTouch = {end: 0};
@@ -10207,9 +9808,9 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     var updateInput = cm.curOp.updateInput;
     // Normal behavior is to insert the new text into every selection
     for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
-      var range$$1 = sel.ranges[i$1];
-      var from = range$$1.from(), to = range$$1.to();
-      if (range$$1.empty()) {
+      var range = sel.ranges[i$1];
+      var from = range.from(), to = range.to();
+      if (range.empty()) {
         if (deleted && deleted > 0) // Handle deletion
           { from = Pos(from.line, from.ch - deleted); }
         else if (cm.state.overwrite && !paste) // Handle overwrite
@@ -10247,21 +9848,21 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     var sel = cm.doc.sel;
 
     for (var i = sel.ranges.length - 1; i >= 0; i--) {
-      var range$$1 = sel.ranges[i];
-      if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue }
-      var mode = cm.getModeAt(range$$1.head);
+      var range = sel.ranges[i];
+      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
+      var mode = cm.getModeAt(range.head);
       var indented = false;
       if (mode.electricChars) {
         for (var j = 0; j < mode.electricChars.length; j++)
           { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
-            indented = indentLine(cm, range$$1.head.line, "smart");
+            indented = indentLine(cm, range.head.line, "smart");
             break
           } }
       } else if (mode.electricInput) {
-        if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch)))
-          { indented = indentLine(cm, range$$1.head.line, "smart"); }
+        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+          { indented = indentLine(cm, range.head.line, "smart"); }
       }
-      if (indented) { signalLater(cm, "electricInput", cm, range$$1.head.line); }
+      if (indented) { signalLater(cm, "electricInput", cm, range.head.line); }
     }
   }
 
@@ -10326,13 +9927,13 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       getOption: function(option) {return this.options[option]},
       getDoc: function() {return this.doc},
 
-      addKeyMap: function(map$$1, bottom) {
-        this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map$$1));
+      addKeyMap: function(map, bottom) {
+        this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
       },
-      removeKeyMap: function(map$$1) {
+      removeKeyMap: function(map) {
         var maps = this.state.keyMaps;
         for (var i = 0; i < maps.length; ++i)
-          { if (maps[i] == map$$1 || maps[i].name == map$$1) {
+          { if (maps[i] == map || maps[i].name == map) {
             maps.splice(i, 1);
             return true
           } }
@@ -10349,15 +9950,13 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
         regChange(this);
       }),
       removeOverlay: methodOp(function(spec) {
-        var this$1 = this;
-
         var overlays = this.state.overlays;
         for (var i = 0; i < overlays.length; ++i) {
           var cur = overlays[i].modeSpec;
           if (cur == spec || typeof spec == "string" && cur.name == spec) {
             overlays.splice(i, 1);
-            this$1.state.modeGen++;
-            regChange(this$1);
+            this.state.modeGen++;
+            regChange(this);
             return
           }
         }
@@ -10371,24 +9970,22 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
         if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
       }),
       indentSelection: methodOp(function(how) {
-        var this$1 = this;
-
         var ranges = this.doc.sel.ranges, end = -1;
         for (var i = 0; i < ranges.length; i++) {
-          var range$$1 = ranges[i];
-          if (!range$$1.empty()) {
-            var from = range$$1.from(), to = range$$1.to();
+          var range = ranges[i];
+          if (!range.empty()) {
+            var from = range.from(), to = range.to();
             var start = Math.max(end, from.line);
-            end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+            end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
             for (var j = start; j < end; ++j)
-              { indentLine(this$1, j, how); }
-            var newRanges = this$1.doc.sel.ranges;
+              { indentLine(this, j, how); }
+            var newRanges = this.doc.sel.ranges;
             if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
-              { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
-          } else if (range$$1.head.line > end) {
-            indentLine(this$1, range$$1.head.line, how, true);
-            end = range$$1.head.line;
-            if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1); }
+              { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
+          } else if (range.head.line > end) {
+            indentLine(this, range.head.line, how, true);
+            end = range.head.line;
+            if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }
           }
         }
       }),
@@ -10430,8 +10027,6 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       },
 
       getHelpers: function(pos, type) {
-        var this$1 = this;
-
         var found = [];
         if (!helpers.hasOwnProperty(type)) { return found }
         var help = helpers[type], mode = this.getModeAt(pos);
@@ -10449,7 +10044,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
         }
         for (var i$1 = 0; i$1 < help._global.length; i$1++) {
           var cur = help._global[i$1];
-          if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)
+          if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
             { found.push(cur.val); }
         }
         return found
@@ -10462,10 +10057,10 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       },
 
       cursorCoords: function(start, mode) {
-        var pos, range$$1 = this.doc.sel.primary();
-        if (start == null) { pos = range$$1.head; }
+        var pos, range = this.doc.sel.primary();
+        if (start == null) { pos = range.head; }
         else if (typeof start == "object") { pos = clipPos(this.doc, start); }
-        else { pos = start ? range$$1.from() : range$$1.to(); }
+        else { pos = start ? range.from() : range.to(); }
         return cursorCoords(this, pos, mode || "page")
       },
 
@@ -10549,13 +10144,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
 
       findPosH: function(from, amount, unit, visually) {
-        var this$1 = this;
-
         var dir = 1;
         if (amount < 0) { dir = -1; amount = -amount; }
         var cur = clipPos(this.doc, from);
         for (var i = 0; i < amount; ++i) {
-          cur = findPosH(this$1.doc, cur, dir, unit, visually);
+          cur = findPosH(this.doc, cur, dir, unit, visually);
           if (cur.hitSide) { break }
         }
         return cur
@@ -10564,11 +10157,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       moveH: methodOp(function(dir, unit) {
         var this$1 = this;
 
-        this.extendSelectionsBy(function (range$$1) {
-          if (this$1.display.shift || this$1.doc.extend || range$$1.empty())
-            { return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) }
+        this.extendSelectionsBy(function (range) {
+          if (this$1.display.shift || this$1.doc.extend || range.empty())
+            { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
           else
-            { return dir < 0 ? range$$1.from() : range$$1.to() }
+            { return dir < 0 ? range.from() : range.to() }
         }, sel_move);
       }),
 
@@ -10577,23 +10170,21 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
         if (sel.somethingSelected())
           { doc.replaceSelection("", null, "+delete"); }
         else
-          { deleteNearSelection(this, function (range$$1) {
-            var other = findPosH(doc, range$$1.head, dir, unit, false);
-            return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other}
+          { deleteNearSelection(this, function (range) {
+            var other = findPosH(doc, range.head, dir, unit, false);
+            return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
           }); }
       }),
 
       findPosV: function(from, amount, unit, goalColumn) {
-        var this$1 = this;
-
         var dir = 1, x = goalColumn;
         if (amount < 0) { dir = -1; amount = -amount; }
         var cur = clipPos(this.doc, from);
         for (var i = 0; i < amount; ++i) {
-          var coords = cursorCoords(this$1, cur, "div");
+          var coords = cursorCoords(this, cur, "div");
           if (x == null) { x = coords.left; }
           else { coords.left = x; }
-          cur = findPosV(this$1, coords, dir, unit);
+          cur = findPosV(this, coords, dir, unit);
           if (cur.hitSide) { break }
         }
         return cur
@@ -10604,14 +10195,14 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
         var doc = this.doc, goals = [];
         var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
-        doc.extendSelectionsBy(function (range$$1) {
+        doc.extendSelectionsBy(function (range) {
           if (collapse)
-            { return dir < 0 ? range$$1.from() : range$$1.to() }
-          var headPos = cursorCoords(this$1, range$$1.head, "div");
-          if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; }
+            { return dir < 0 ? range.from() : range.to() }
+          var headPos = cursorCoords(this$1, range.head, "div");
+          if (range.goalColumn != null) { headPos.left = range.goalColumn; }
           goals.push(headPos.left);
           var pos = findPosV(this$1, headPos, dir, unit);
-          if (unit == "page" && range$$1 == doc.sel.primary())
+          if (unit == "page" && range == doc.sel.primary())
             { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
           return pos
         }, sel_move);
@@ -10658,22 +10249,22 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
                 clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
       },
 
-      scrollIntoView: methodOp(function(range$$1, margin) {
-        if (range$$1 == null) {
-          range$$1 = {from: this.doc.sel.primary().head, to: null};
+      scrollIntoView: methodOp(function(range, margin) {
+        if (range == null) {
+          range = {from: this.doc.sel.primary().head, to: null};
           if (margin == null) { margin = this.options.cursorScrollMargin; }
-        } else if (typeof range$$1 == "number") {
-          range$$1 = {from: Pos(range$$1, 0), to: null};
-        } else if (range$$1.from == null) {
-          range$$1 = {from: range$$1, to: null};
+        } else if (typeof range == "number") {
+          range = {from: Pos(range, 0), to: null};
+        } else if (range.from == null) {
+          range = {from: range, to: null};
         }
-        if (!range$$1.to) { range$$1.to = range$$1.from; }
-        range$$1.margin = margin || 0;
+        if (!range.to) { range.to = range.from; }
+        range.margin = margin || 0;
 
-        if (range$$1.from.line != null) {
-          scrollToRange(this, range$$1);
+        if (range.from.line != null) {
+          scrollToRange(this, range);
         } else {
-          scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin);
+          scrollToCoordsRange(this, range.from, range.to, range.margin);
         }
       }),
 
@@ -10684,11 +10275,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
         if (width != null) { this.display.wrapper.style.width = interpret(width); }
         if (height != null) { this.display.wrapper.style.height = interpret(height); }
         if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
-        var lineNo$$1 = this.display.viewFrom;
-        this.doc.iter(lineNo$$1, this.display.viewTo, function (line) {
+        var lineNo = this.display.viewFrom;
+        this.doc.iter(lineNo, this.display.viewTo, function (line) {
           if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
-            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, "widget"); break } } }
-          ++lineNo$$1;
+            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
+          ++lineNo;
         });
         this.curOp.forceUpdate = true;
         signal(this, "refresh", this);
@@ -10759,8 +10350,9 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     var oldPos = pos;
     var origDir = dir;
     var lineObj = getLine(doc, pos.line);
+    var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
     function findNextLine() {
-      var l = pos.line + dir;
+      var l = pos.line + lineDir;
       if (l < doc.first || l >= doc.first + doc.size) { return false }
       pos = new Pos(l, pos.ch, pos.sticky);
       return lineObj = getLine(doc, l)
@@ -10774,7 +10366,7 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
       }
       if (next == null) {
         if (!boundToLine && findNextLine())
-          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); }
+          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }
         else
           { return false }
       } else {
@@ -10959,8 +10551,8 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
     var end = to.line < cm.display.viewTo && posToDOM(cm, to);
     if (!end) {
       var measure = view[view.length - 1].measure;
-      var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
-      end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]};
+      var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
+      end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
     }
 
     if (!start || !end) {
@@ -11249,11 +10841,11 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
           addText(cmText);
           return
         }
-        var markerID = node.getAttribute("cm-marker"), range$$1;
+        var markerID = node.getAttribute("cm-marker"), range;
         if (markerID) {
           var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
-          if (found.length && (range$$1 = found[0].find(0)))
-            { addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); }
+          if (found.length && (range = found[0].find(0)))
+            { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }
           return
         }
         if (node.getAttribute("contenteditable") == "false") { return }
@@ -11321,13 +10913,13 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
     function find(textNode, topNode, offset) {
       for (var i = -1; i < (maps ? maps.length : 0); i++) {
-        var map$$1 = i < 0 ? measure.map : maps[i];
-        for (var j = 0; j < map$$1.length; j += 3) {
-          var curNode = map$$1[j + 2];
+        var map = i < 0 ? measure.map : maps[i];
+        for (var j = 0; j < map.length; j += 3) {
+          var curNode = map[j + 2];
           if (curNode == textNode || curNode == topNode) {
             var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
-            var ch = map$$1[j] + offset;
-            if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; }
+            var ch = map[j] + offset;
+            if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }
             return Pos(line, ch)
           }
         }
@@ -11851,150 +11443,13 @@ CodeMirror.overlayMode = function(base, overlay, combine) {
 
   addLegacyProps(CodeMirror);
 
-  CodeMirror.version = "5.49.2";
+  CodeMirror.version = "5.52.0";
 
   return CodeMirror;
 
 })));
 
 
-/***/ }),
-
-/***/ "./node_modules/codemirror/mode/gfm/gfm.js":
-/*!*************************************************!*\
-  !*** ./node_modules/codemirror/mode/gfm/gfm.js ***!
-  \*************************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: https://codemirror.net/LICENSE
-
-(function(mod) {
-  if (true) // CommonJS
-    mod(__webpack_require__(/*! ../../lib/codemirror */ "./node_modules/codemirror/lib/codemirror.js"), __webpack_require__(/*! ../markdown/markdown */ "./node_modules/codemirror/mode/markdown/markdown.js"), __webpack_require__(/*! ../../addon/mode/overlay */ "./node_modules/codemirror/addon/mode/overlay.js"));
-  else {}
-})(function(CodeMirror) {
-"use strict";
-
-var urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\.beep|\.lwz|\.xpc|\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\.beeps?|xmpp|xri|ymsgr|z39\.50[rs]?):(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]|\([^\s()<>]*\))+(?:\([^\s()<>]*\)|[^\s`*!()\[\]{};:'".,<>?«»“”‘’]))/i
-
-CodeMirror.defineMode("gfm", function(config, modeConfig) {
-  var codeDepth = 0;
-  function blankLine(state) {
-    state.code = false;
-    return null;
-  }
-  var gfmOverlay = {
-    startState: function() {
-      return {
-        code: false,
-        codeBlock: false,
-        ateSpace: false
-      };
-    },
-    copyState: function(s) {
-      return {
-        code: s.code,
-        codeBlock: s.codeBlock,
-        ateSpace: s.ateSpace
-      };
-    },
-    token: function(stream, state) {
-      state.combineTokens = null;
-
-      // Hack to prevent formatting override inside code blocks (block and inline)
-      if (state.codeBlock) {
-        if (stream.match(/^```+/)) {
-          state.codeBlock = false;
-          return null;
-        }
-        stream.skipToEnd();
-        return null;
-      }
-      if (stream.sol()) {
-        state.code = false;
-      }
-      if (stream.sol() && stream.match(/^```+/)) {
-        stream.skipToEnd();
-        state.codeBlock = true;
-        return null;
-      }
-      // If this block is changed, it may need to be updated in Markdown mode
-      if (stream.peek() === '`') {
-        stream.next();
-        var before = stream.pos;
-        stream.eatWhile('`');
-        var difference = 1 + stream.pos - before;
-        if (!state.code) {
-          codeDepth = difference;
-          state.code = true;
-        } else {
-          if (difference === codeDepth) { // Must be exact
-            state.code = false;
-          }
-        }
-        return null;
-      } else if (state.code) {
-        stream.next();
-        return null;
-      }
-      // Check if space. If so, links can be formatted later on
-      if (stream.eatSpace()) {
-        state.ateSpace = true;
-        return null;
-      }
-      if (stream.sol() || state.ateSpace) {
-        state.ateSpace = false;
-        if (modeConfig.gitHubSpice !== false) {
-          if(stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?=.{0,6}\d)(?:[a-f0-9]{7,40}\b)/)) {
-            // User/Project@SHA
-            // User@SHA
-            // SHA
-            state.combineTokens = true;
-            return "link";
-          } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) {
-            // User/Project#Num
-            // User#Num
-            // #Num
-            state.combineTokens = true;
-            return "link";
-          }
-        }
-      }
-      if (stream.match(urlRE) &&
-          stream.string.slice(stream.start - 2, stream.start) != "](" &&
-          (stream.start == 0 || /\W/.test(stream.string.charAt(stream.start - 1)))) {
-        // URLs
-        // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
-        // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine
-        // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL
-        state.combineTokens = true;
-        return "link";
-      }
-      stream.next();
-      return null;
-    },
-    blankLine: blankLine
-  };
-
-  var markdownConfig = {
-    taskLists: true,
-    strikethrough: true,
-    emoji: true
-  };
-  for (var attr in modeConfig) {
-    markdownConfig[attr] = modeConfig[attr];
-  }
-  markdownConfig.name = "markdown";
-  return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);
-
-}, "markdown");
-
-  CodeMirror.defineMIME("text/x-gfm", "gfm");
-});
-
-
 /***/ }),
 
 /***/ "./node_modules/codemirror/mode/markdown/markdown.js":
@@ -13084,6 +12539,7 @@ CodeMirror.defineMIME("text/x-markdown", "markdown");
   };
 
   CodeMirror.findModeByExtension = function(ext) {
+    ext = ext.toLowerCase();
     for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
       var info = CodeMirror.modeInfo[i];
       if (info.ext) for (var j = 0; j < info.ext.length; j++)
@@ -13780,198 +13236,374 @@ module.exports = {
 
 /***/ }),
 
-/***/ "./node_modules/marked/lib/marked.js":
-/*!*******************************************!*\
-  !*** ./node_modules/marked/lib/marked.js ***!
-  \*******************************************/
+/***/ "./node_modules/marked/src/InlineLexer.js":
+/*!************************************************!*\
+  !*** ./node_modules/marked/src/InlineLexer.js ***!
+  \************************************************/
 /*! no static exports found */
 /***/ (function(module, exports, __webpack_require__) {
 
-/* WEBPACK VAR INJECTION */(function(global) {/**
- * marked - a markdown parser
- * Copyright (c) 2011-2018, Christopher Jeffrey. (MIT Licensed)
- * https://github.com/markedjs/marked
- */
-
-;(function(root) {
-'use strict';
+const Renderer = __webpack_require__(/*! ./Renderer.js */ "./node_modules/marked/src/Renderer.js");
+const { defaults } = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
+const { inline } = __webpack_require__(/*! ./rules.js */ "./node_modules/marked/src/rules.js");
+const {
+  findClosingBracket,
+  escape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
 
 /**
- * Block-Level Grammar
+ * Inline Lexer & Compiler
  */
+module.exports = class InlineLexer {
+  constructor(links, options) {
+    this.options = options || defaults;
+    this.links = links;
+    this.rules = inline.normal;
+    this.options.renderer = this.options.renderer || new Renderer();
+    this.renderer = this.options.renderer;
+    this.renderer.options = this.options;
+
+    if (!this.links) {
+      throw new Error('Tokens array requires a `links` property.');
+    }
+
+    if (this.options.pedantic) {
+      this.rules = inline.pedantic;
+    } else if (this.options.gfm) {
+      if (this.options.breaks) {
+        this.rules = inline.breaks;
+      } else {
+        this.rules = inline.gfm;
+      }
+    }
+  }
 
-var block = {
-  newline: /^\n+/,
-  code: /^( {4}[^\n]+\n*)+/,
-  fences: /^ {0,3}(`{3,}|~{3,})([^`~\n]*)\n(?:|([\s\S]*?)\n)(?: {0,3}\1[~`]* *(?:\n+|$)|$)/,
-  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
-  heading: /^ {0,3}(#{1,6}) +([^\n]*?)(?: +#+)? *(?:\n+|$)/,
-  blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
-  list: /^( {0,3})(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
-  html: '^ {0,3}(?:' // optional indentation
-    + '<(script|pre|style)[\\s>][\\s\\S]*?(?:</\\1>[^\\n]*\\n+|$)' // (1)
-    + '|comment[^\\n]*(\\n+|$)' // (2)
-    + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
-    + '|<![A-Z][\\s\\S]*?>\\n*' // (4)
-    + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5)
-    + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
-    + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
-    + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
-    + ')',
-  def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
-  nptable: noop,
-  table: noop,
-  lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
-  // regex template, placeholders will be replaced according to different paragraph
-  // interruption rules of commonmark and the original markdown spec:
-  _paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\n]+)*)/,
-  text: /^[^\n]+/
-};
+  /**
+   * Expose Inline Rules
+   */
+  static get rules() {
+    return inline;
+  }
 
-block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/;
-block._title = /(?:"(?:\\"?|[^"\\])*"|'[^'\n]*(?:\n[^'\n]+)*\n?'|\([^()]*\))/;
-block.def = edit(block.def)
-  .replace('label', block._label)
-  .replace('title', block._title)
-  .getRegex();
+  /**
+   * Static Lexing/Compiling Method
+   */
+  static output(src, links, options) {
+    const inline = new InlineLexer(links, options);
+    return inline.output(src);
+  }
 
-block.bullet = /(?:[*+-]|\d{1,9}\.)/;
-block.item = /^( *)(bull) ?[^\n]*(?:\n(?!\1bull ?)[^\n]*)*/;
-block.item = edit(block.item, 'gm')
-  .replace(/bull/g, block.bullet)
-  .getRegex();
+  /**
+   * Lexing/Compiling
+   */
+  output(src) {
+    let out = '',
+      link,
+      text,
+      href,
+      title,
+      cap,
+      prevCapZero;
 
-block.list = edit(block.list)
-  .replace(/bull/g, block.bullet)
-  .replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))')
-  .replace('def', '\\n+(?=' + block.def.source + ')')
-  .getRegex();
+    while (src) {
+      // escape
+      if (cap = this.rules.escape.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += escape(cap[1]);
+        continue;
+      }
 
-block._tag = 'address|article|aside|base|basefont|blockquote|body|caption'
-  + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'
-  + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'
-  + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'
-  + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'
-  + '|track|ul';
-block._comment = /<!--(?!-?>)[\s\S]*?-->/;
-block.html = edit(block.html, 'i')
-  .replace('comment', block._comment)
-  .replace('tag', block._tag)
-  .replace('attribute', / +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/)
-  .getRegex();
+      // tag
+      if (cap = this.rules.tag.exec(src)) {
+        if (!this.inLink && /^<a /i.test(cap[0])) {
+          this.inLink = true;
+        } else if (this.inLink && /^<\/a>/i.test(cap[0])) {
+          this.inLink = false;
+        }
+        if (!this.inRawBlock && /^<(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
+          this.inRawBlock = true;
+        } else if (this.inRawBlock && /^<\/(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
+          this.inRawBlock = false;
+        }
 
-block.paragraph = edit(block._paragraph)
-  .replace('hr', block.hr)
-  .replace('heading', ' {0,3}#{1,6} +')
-  .replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs
-  .replace('blockquote', ' {0,3}>')
-  .replace('fences', ' {0,3}(?:`{3,}|~{3,})[^`\\n]*\\n')
-  .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
-  .replace('html', '</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|!--)')
-  .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks
-  .getRegex();
+        src = src.substring(cap[0].length);
+        out += this.options.sanitize
+          ? this.options.sanitizer
+            ? this.options.sanitizer(cap[0])
+            : escape(cap[0])
+          : cap[0];
+        continue;
+      }
 
-block.blockquote = edit(block.blockquote)
-  .replace('paragraph', block.paragraph)
-  .getRegex();
+      // link
+      if (cap = this.rules.link.exec(src)) {
+        const lastParenIndex = findClosingBracket(cap[2], '()');
+        if (lastParenIndex > -1) {
+          const start = cap[0].indexOf('!') === 0 ? 5 : 4;
+          const linkLen = start + cap[1].length + lastParenIndex;
+          cap[2] = cap[2].substring(0, lastParenIndex);
+          cap[0] = cap[0].substring(0, linkLen).trim();
+          cap[3] = '';
+        }
+        src = src.substring(cap[0].length);
+        this.inLink = true;
+        href = cap[2];
+        if (this.options.pedantic) {
+          link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href);
 
-/**
- * Normal Block Grammar
- */
+          if (link) {
+            href = link[1];
+            title = link[3];
+          } else {
+            title = '';
+          }
+        } else {
+          title = cap[3] ? cap[3].slice(1, -1) : '';
+        }
+        href = href.trim().replace(/^<([\s\S]*)>$/, '$1');
+        out += this.outputLink(cap, {
+          href: InlineLexer.escapes(href),
+          title: InlineLexer.escapes(title)
+        });
+        this.inLink = false;
+        continue;
+      }
 
-block.normal = merge({}, block);
+      // reflink, nolink
+      if ((cap = this.rules.reflink.exec(src))
+          || (cap = this.rules.nolink.exec(src))) {
+        src = src.substring(cap[0].length);
+        link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
+        link = this.links[link.toLowerCase()];
+        if (!link || !link.href) {
+          out += cap[0].charAt(0);
+          src = cap[0].substring(1) + src;
+          continue;
+        }
+        this.inLink = true;
+        out += this.outputLink(cap, link);
+        this.inLink = false;
+        continue;
+      }
 
-/**
- * GFM Block Grammar
- */
+      // strong
+      if (cap = this.rules.strong.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));
+        continue;
+      }
 
-block.gfm = merge({}, block.normal, {
-  nptable: /^ *([^|\n ].*\|.*)\n *([-:]+ *\|[-| :]*)(?:\n((?:.*[^>\n ].*(?:\n|$))*)\n*|$)/,
-  table: /^ *\|(.+)\n *\|?( *[-:]+[-| :]*)(?:\n((?: *[^>\n ].*(?:\n|$))*)\n*|$)/
-});
+      // em
+      if (cap = this.rules.em.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));
+        continue;
+      }
 
-/**
- * Pedantic grammar (original John Gruber's loose markdown specification)
- */
+      // code
+      if (cap = this.rules.code.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += this.renderer.codespan(escape(cap[2].trim(), true));
+        continue;
+      }
 
-block.pedantic = merge({}, block.normal, {
-  html: edit(
-    '^ *(?:comment *(?:\\n|\\s*$)'
-    + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag
-    + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))')
-    .replace('comment', block._comment)
-    .replace(/tag/g, '(?!(?:'
-      + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'
-      + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'
-      + '\\b)\\w+(?!:|[^\\w\\s@]*@)\\b')
-    .getRegex(),
-  def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/,
-  heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/,
-  fences: noop, // fences not supported
-  paragraph: edit(block.normal._paragraph)
-    .replace('hr', block.hr)
-    .replace('heading', ' *#{1,6} *[^\n]')
-    .replace('lheading', block.lheading)
-    .replace('blockquote', ' {0,3}>')
-    .replace('|fences', '')
-    .replace('|list', '')
-    .replace('|html', '')
-    .getRegex()
-});
+      // br
+      if (cap = this.rules.br.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += this.renderer.br();
+        continue;
+      }
 
-/**
- * Block Lexer
- */
+      // del (gfm)
+      if (cap = this.rules.del.exec(src)) {
+        src = src.substring(cap[0].length);
+        out += this.renderer.del(this.output(cap[1]));
+        continue;
+      }
+
+      // autolink
+      if (cap = this.rules.autolink.exec(src)) {
+        src = src.substring(cap[0].length);
+        if (cap[2] === '@') {
+          text = escape(this.mangle(cap[1]));
+          href = 'mailto:' + text;
+        } else {
+          text = escape(cap[1]);
+          href = text;
+        }
+        out += this.renderer.link(href, null, text);
+        continue;
+      }
+
+      // url (gfm)
+      if (!this.inLink && (cap = this.rules.url.exec(src))) {
+        if (cap[2] === '@') {
+          text = escape(cap[0]);
+          href = 'mailto:' + text;
+        } else {
+          // do extended autolink path validation
+          do {
+            prevCapZero = cap[0];
+            cap[0] = this.rules._backpedal.exec(cap[0])[0];
+          } while (prevCapZero !== cap[0]);
+          text = escape(cap[0]);
+          if (cap[1] === 'www.') {
+            href = 'http://' + text;
+          } else {
+            href = text;
+          }
+        }
+        src = src.substring(cap[0].length);
+        out += this.renderer.link(href, null, text);
+        continue;
+      }
+
+      // text
+      if (cap = this.rules.text.exec(src)) {
+        src = src.substring(cap[0].length);
+        if (this.inRawBlock) {
+          out += this.renderer.text(this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]);
+        } else {
+          out += this.renderer.text(escape(this.smartypants(cap[0])));
+        }
+        continue;
+      }
 
-function Lexer(options) {
-  this.tokens = [];
-  this.tokens.links = Object.create(null);
-  this.options = options || marked.defaults;
-  this.rules = block.normal;
+      if (src) {
+        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
+      }
+    }
 
-  if (this.options.pedantic) {
-    this.rules = block.pedantic;
-  } else if (this.options.gfm) {
-    this.rules = block.gfm;
+    return out;
   }
-}
 
-/**
- * Expose Block Rules
- */
+  static escapes(text) {
+    return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;
+  }
 
-Lexer.rules = block;
+  /**
+   * Compile Link
+   */
+  outputLink(cap, link) {
+    const href = link.href,
+      title = link.title ? escape(link.title) : null;
 
-/**
- * Static Lex Method
- */
+    return cap[0].charAt(0) !== '!'
+      ? this.renderer.link(href, title, this.output(cap[1]))
+      : this.renderer.image(href, title, escape(cap[1]));
+  }
+
+  /**
+   * Smartypants Transformations
+   */
+  smartypants(text) {
+    if (!this.options.smartypants) return text;
+    return text
+      // em-dashes
+      .replace(/---/g, '\u2014')
+      // en-dashes
+      .replace(/--/g, '\u2013')
+      // opening singles
+      .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
+      // closing singles & apostrophes
+      .replace(/'/g, '\u2019')
+      // opening doubles
+      .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
+      // closing doubles
+      .replace(/"/g, '\u201d')
+      // ellipses
+      .replace(/\.{3}/g, '\u2026');
+  }
+
+  /**
+   * Mangle Links
+   */
+  mangle(text) {
+    if (!this.options.mangle) return text;
+    const l = text.length;
+    let out = '',
+      i = 0,
+      ch;
 
-Lexer.lex = function(src, options) {
-  var lexer = new Lexer(options);
-  return lexer.lex(src);
+    for (; i < l; i++) {
+      ch = text.charCodeAt(i);
+      if (Math.random() > 0.5) {
+        ch = 'x' + ch.toString(16);
+      }
+      out += '&#' + ch + ';';
+    }
+
+    return out;
+  }
 };
 
-/**
- * Preprocessing
- */
 
-Lexer.prototype.lex = function(src) {
-  src = src
-    .replace(/\r\n|\r/g, '\n')
-    .replace(/\t/g, '    ')
-    .replace(/\u00a0/g, ' ')
-    .replace(/\u2424/g, '\n');
+/***/ }),
 
-  return this.token(src, true);
-};
+/***/ "./node_modules/marked/src/Lexer.js":
+/*!******************************************!*\
+  !*** ./node_modules/marked/src/Lexer.js ***!
+  \******************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+const { defaults } = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
+const { block } = __webpack_require__(/*! ./rules.js */ "./node_modules/marked/src/rules.js");
+const {
+  rtrim,
+  splitCells,
+  escape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
 
 /**
- * Lexing
+ * Block Lexer
  */
+module.exports = class Lexer {
+  constructor(options) {
+    this.tokens = [];
+    this.tokens.links = Object.create(null);
+    this.options = options || defaults;
+    this.rules = block.normal;
+
+    if (this.options.pedantic) {
+      this.rules = block.pedantic;
+    } else if (this.options.gfm) {
+      this.rules = block.gfm;
+    }
+  }
+
+  /**
+   * Expose Block Rules
+   */
+  static get rules() {
+    return block;
+  }
+
+  /**
+   * Static Lex Method
+   */
+  static lex(src, options) {
+    const lexer = new Lexer(options);
+    return lexer.lex(src);
+  };
+
+  /**
+   * Preprocessing
+   */
+  lex(src) {
+    src = src
+      .replace(/\r\n|\r/g, '\n')
+      .replace(/\t/g, '    ');
 
-Lexer.prototype.token = function(src, top) {
-  src = src.replace(/^ +$/gm, '');
-  var next,
+    return this.token(src, true);
+  };
+
+  /**
+   * Lexing
+   */
+  token(src, top) {
+    src = src.replace(/^ +$/gm, '');
+    let next,
       loose,
       cap,
       bull,
@@ -13988,1170 +13620,903 @@ Lexer.prototype.token = function(src, top) {
       istask,
       ischecked;
 
-  while (src) {
-    // newline
-    if (cap = this.rules.newline.exec(src)) {
-      src = src.substring(cap[0].length);
-      if (cap[0].length > 1) {
-        this.tokens.push({
-          type: 'space'
-        });
+    while (src) {
+      // newline
+      if (cap = this.rules.newline.exec(src)) {
+        src = src.substring(cap[0].length);
+        if (cap[0].length > 1) {
+          this.tokens.push({
+            type: 'space'
+          });
+        }
       }
-    }
 
-    // code
-    if (cap = this.rules.code.exec(src)) {
-      var lastToken = this.tokens[this.tokens.length - 1];
-      src = src.substring(cap[0].length);
-      // An indented code block cannot interrupt a paragraph.
-      if (lastToken && lastToken.type === 'paragraph') {
-        lastToken.text += '\n' + cap[0].trimRight();
-      } else {
-        cap = cap[0].replace(/^ {4}/gm, '');
+      // code
+      if (cap = this.rules.code.exec(src)) {
+        const lastToken = this.tokens[this.tokens.length - 1];
+        src = src.substring(cap[0].length);
+        // An indented code block cannot interrupt a paragraph.
+        if (lastToken && lastToken.type === 'paragraph') {
+          lastToken.text += '\n' + cap[0].trimRight();
+        } else {
+          cap = cap[0].replace(/^ {4}/gm, '');
+          this.tokens.push({
+            type: 'code',
+            codeBlockStyle: 'indented',
+            text: !this.options.pedantic
+              ? rtrim(cap, '\n')
+              : cap
+          });
+        }
+        continue;
+      }
+
+      // fences
+      if (cap = this.rules.fences.exec(src)) {
+        src = src.substring(cap[0].length);
         this.tokens.push({
           type: 'code',
-          codeBlockStyle: 'indented',
-          text: !this.options.pedantic
-            ? rtrim(cap, '\n')
-            : cap
+          lang: cap[2] ? cap[2].trim() : cap[2],
+          text: cap[3] || ''
         });
+        continue;
       }
-      continue;
-    }
 
-    // fences
-    if (cap = this.rules.fences.exec(src)) {
-      src = src.substring(cap[0].length);
-      this.tokens.push({
-        type: 'code',
-        lang: cap[2] ? cap[2].trim() : cap[2],
-        text: cap[3] || ''
-      });
-      continue;
-    }
+      // heading
+      if (cap = this.rules.heading.exec(src)) {
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'heading',
+          depth: cap[1].length,
+          text: cap[2]
+        });
+        continue;
+      }
 
-    // heading
-    if (cap = this.rules.heading.exec(src)) {
-      src = src.substring(cap[0].length);
-      this.tokens.push({
-        type: 'heading',
-        depth: cap[1].length,
-        text: cap[2]
-      });
-      continue;
-    }
+      // table no leading pipe (gfm)
+      if (cap = this.rules.nptable.exec(src)) {
+        item = {
+          type: 'table',
+          header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
+          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
+        };
 
-    // table no leading pipe (gfm)
-    if (cap = this.rules.nptable.exec(src)) {
-      item = {
-        type: 'table',
-        header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
-        align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
-        cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
-      };
+        if (item.header.length === item.align.length) {
+          src = src.substring(cap[0].length);
 
-      if (item.header.length === item.align.length) {
-        src = src.substring(cap[0].length);
+          for (i = 0; i < item.align.length; i++) {
+            if (/^ *-+: *$/.test(item.align[i])) {
+              item.align[i] = 'right';
+            } else if (/^ *:-+: *$/.test(item.align[i])) {
+              item.align[i] = 'center';
+            } else if (/^ *:-+ *$/.test(item.align[i])) {
+              item.align[i] = 'left';
+            } else {
+              item.align[i] = null;
+            }
+          }
 
-        for (i = 0; i < item.align.length; i++) {
-          if (/^ *-+: *$/.test(item.align[i])) {
-            item.align[i] = 'right';
-          } else if (/^ *:-+: *$/.test(item.align[i])) {
-            item.align[i] = 'center';
-          } else if (/^ *:-+ *$/.test(item.align[i])) {
-            item.align[i] = 'left';
-          } else {
-            item.align[i] = null;
+          for (i = 0; i < item.cells.length; i++) {
+            item.cells[i] = splitCells(item.cells[i], item.header.length);
           }
-        }
 
-        for (i = 0; i < item.cells.length; i++) {
-          item.cells[i] = splitCells(item.cells[i], item.header.length);
-        }
+          this.tokens.push(item);
 
-        this.tokens.push(item);
+          continue;
+        }
+      }
 
+      // hr
+      if (cap = this.rules.hr.exec(src)) {
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'hr'
+        });
         continue;
       }
-    }
 
-    // hr
-    if (cap = this.rules.hr.exec(src)) {
-      src = src.substring(cap[0].length);
-      this.tokens.push({
-        type: 'hr'
-      });
-      continue;
-    }
+      // blockquote
+      if (cap = this.rules.blockquote.exec(src)) {
+        src = src.substring(cap[0].length);
 
-    // blockquote
-    if (cap = this.rules.blockquote.exec(src)) {
-      src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'blockquote_start'
+        });
 
-      this.tokens.push({
-        type: 'blockquote_start'
-      });
+        cap = cap[0].replace(/^ *> ?/gm, '');
 
-      cap = cap[0].replace(/^ *> ?/gm, '');
+        // Pass `top` to keep the current
+        // "toplevel" state. This is exactly
+        // how markdown.pl works.
+        this.token(cap, top);
 
-      // Pass `top` to keep the current
-      // "toplevel" state. This is exactly
-      // how markdown.pl works.
-      this.token(cap, top);
+        this.tokens.push({
+          type: 'blockquote_end'
+        });
 
-      this.tokens.push({
-        type: 'blockquote_end'
-      });
+        continue;
+      }
 
-      continue;
-    }
+      // list
+      if (cap = this.rules.list.exec(src)) {
+        src = src.substring(cap[0].length);
+        bull = cap[2];
+        isordered = bull.length > 1;
+
+        listStart = {
+          type: 'list_start',
+          ordered: isordered,
+          start: isordered ? +bull : '',
+          loose: false
+        };
 
-    // list
-    if (cap = this.rules.list.exec(src)) {
-      src = src.substring(cap[0].length);
-      bull = cap[2];
-      isordered = bull.length > 1;
+        this.tokens.push(listStart);
 
-      listStart = {
-        type: 'list_start',
-        ordered: isordered,
-        start: isordered ? +bull : '',
-        loose: false
-      };
+        // Get each top-level item.
+        cap = cap[0].match(this.rules.item);
+
+        listItems = [];
+        next = false;
+        l = cap.length;
+        i = 0;
 
-      this.tokens.push(listStart);
+        for (; i < l; i++) {
+          item = cap[i];
+
+          // Remove the list item's bullet
+          // so it is seen as the next token.
+          space = item.length;
+          item = item.replace(/^ *([*+-]|\d+\.) */, '');
+
+          // Outdent whatever the
+          // list item contains. Hacky.
+          if (~item.indexOf('\n ')) {
+            space -= item.length;
+            item = !this.options.pedantic
+              ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
+              : item.replace(/^ {1,4}/gm, '');
+          }
 
-      // Get each top-level item.
-      cap = cap[0].match(this.rules.item);
+          // Determine whether the next list item belongs here.
+          // Backpedal if it does not belong in this list.
+          if (i !== l - 1) {
+            b = block.bullet.exec(cap[i + 1])[0];
+            if (bull.length > 1 ? b.length === 1
+              : (b.length > 1 || (this.options.smartLists && b !== bull))) {
+              src = cap.slice(i + 1).join('\n') + src;
+              i = l - 1;
+            }
+          }
 
-      listItems = [];
-      next = false;
-      l = cap.length;
-      i = 0;
+          // Determine whether item is loose or not.
+          // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
+          // for discount behavior.
+          loose = next || /\n\n(?!\s*$)/.test(item);
+          if (i !== l - 1) {
+            next = item.charAt(item.length - 1) === '\n';
+            if (!loose) loose = next;
+          }
 
-      for (; i < l; i++) {
-        item = cap[i];
-
-        // Remove the list item's bullet
-        // so it is seen as the next token.
-        space = item.length;
-        item = item.replace(/^ *([*+-]|\d+\.) */, '');
-
-        // Outdent whatever the
-        // list item contains. Hacky.
-        if (~item.indexOf('\n ')) {
-          space -= item.length;
-          item = !this.options.pedantic
-            ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
-            : item.replace(/^ {1,4}/gm, '');
-        }
+          if (loose) {
+            listStart.loose = true;
+          }
 
-        // Determine whether the next list item belongs here.
-        // Backpedal if it does not belong in this list.
-        if (i !== l - 1) {
-          b = block.bullet.exec(cap[i + 1])[0];
-          if (bull.length > 1 ? b.length === 1
-            : (b.length > 1 || (this.options.smartLists && b !== bull))) {
-            src = cap.slice(i + 1).join('\n') + src;
-            i = l - 1;
+          // Check for task list items
+          istask = /^\[[ xX]\] /.test(item);
+          ischecked = undefined;
+          if (istask) {
+            ischecked = item[1] !== ' ';
+            item = item.replace(/^\[[ xX]\] +/, '');
           }
-        }
 
-        // Determine whether item is loose or not.
-        // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
-        // for discount behavior.
-        loose = next || /\n\n(?!\s*$)/.test(item);
-        if (i !== l - 1) {
-          next = item.charAt(item.length - 1) === '\n';
-          if (!loose) loose = next;
-        }
+          t = {
+            type: 'list_item_start',
+            task: istask,
+            checked: ischecked,
+            loose: loose
+          };
 
-        if (loose) {
-          listStart.loose = true;
-        }
+          listItems.push(t);
+          this.tokens.push(t);
 
-        // Check for task list items
-        istask = /^\[[ xX]\] /.test(item);
-        ischecked = undefined;
-        if (istask) {
-          ischecked = item[1] !== ' ';
-          item = item.replace(/^\[[ xX]\] +/, '');
+          // Recurse.
+          this.token(item, false);
+
+          this.tokens.push({
+            type: 'list_item_end'
+          });
         }
 
-        t = {
-          type: 'list_item_start',
-          task: istask,
-          checked: ischecked,
-          loose: loose
-        };
+        if (listStart.loose) {
+          l = listItems.length;
+          i = 0;
+          for (; i < l; i++) {
+            listItems[i].loose = true;
+          }
+        }
 
-        listItems.push(t);
-        this.tokens.push(t);
+        this.tokens.push({
+          type: 'list_end'
+        });
 
-        // Recurse.
-        this.token(item, false);
+        continue;
+      }
 
+      // html
+      if (cap = this.rules.html.exec(src)) {
+        src = src.substring(cap[0].length);
         this.tokens.push({
-          type: 'list_item_end'
+          type: this.options.sanitize
+            ? 'paragraph'
+            : 'html',
+          pre: !this.options.sanitizer
+            && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
+          text: this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]
         });
+        continue;
       }
 
-      if (listStart.loose) {
-        l = listItems.length;
-        i = 0;
-        for (; i < l; i++) {
-          listItems[i].loose = true;
+      // def
+      if (top && (cap = this.rules.def.exec(src))) {
+        src = src.substring(cap[0].length);
+        if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);
+        tag = cap[1].toLowerCase().replace(/\s+/g, ' ');
+        if (!this.tokens.links[tag]) {
+          this.tokens.links[tag] = {
+            href: cap[2],
+            title: cap[3]
+          };
         }
+        continue;
       }
 
-      this.tokens.push({
-        type: 'list_end'
-      });
-
-      continue;
-    }
-
-    // html
-    if (cap = this.rules.html.exec(src)) {
-      src = src.substring(cap[0].length);
-      this.tokens.push({
-        type: this.options.sanitize
-          ? 'paragraph'
-          : 'html',
-        pre: !this.options.sanitizer
-          && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
-        text: this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]
-      });
-      continue;
-    }
-
-    // def
-    if (top && (cap = this.rules.def.exec(src))) {
-      src = src.substring(cap[0].length);
-      if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);
-      tag = cap[1].toLowerCase().replace(/\s+/g, ' ');
-      if (!this.tokens.links[tag]) {
-        this.tokens.links[tag] = {
-          href: cap[2],
-          title: cap[3]
+      // table (gfm)
+      if (cap = this.rules.table.exec(src)) {
+        item = {
+          type: 'table',
+          header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
+          align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+          cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
         };
-      }
-      continue;
-    }
 
-    // table (gfm)
-    if (cap = this.rules.table.exec(src)) {
-      item = {
-        type: 'table',
-        header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')),
-        align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
-        cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : []
-      };
+        if (item.header.length === item.align.length) {
+          src = src.substring(cap[0].length);
 
-      if (item.header.length === item.align.length) {
-        src = src.substring(cap[0].length);
+          for (i = 0; i < item.align.length; i++) {
+            if (/^ *-+: *$/.test(item.align[i])) {
+              item.align[i] = 'right';
+            } else if (/^ *:-+: *$/.test(item.align[i])) {
+              item.align[i] = 'center';
+            } else if (/^ *:-+ *$/.test(item.align[i])) {
+              item.align[i] = 'left';
+            } else {
+              item.align[i] = null;
+            }
+          }
 
-        for (i = 0; i < item.align.length; i++) {
-          if (/^ *-+: *$/.test(item.align[i])) {
-            item.align[i] = 'right';
-          } else if (/^ *:-+: *$/.test(item.align[i])) {
-            item.align[i] = 'center';
-          } else if (/^ *:-+ *$/.test(item.align[i])) {
-            item.align[i] = 'left';
-          } else {
-            item.align[i] = null;
+          for (i = 0; i < item.cells.length; i++) {
+            item.cells[i] = splitCells(
+              item.cells[i].replace(/^ *\| *| *\| *$/g, ''),
+              item.header.length);
           }
-        }
 
-        for (i = 0; i < item.cells.length; i++) {
-          item.cells[i] = splitCells(
-            item.cells[i].replace(/^ *\| *| *\| *$/g, ''),
-            item.header.length);
-        }
+          this.tokens.push(item);
 
-        this.tokens.push(item);
+          continue;
+        }
+      }
 
+      // lheading
+      if (cap = this.rules.lheading.exec(src)) {
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'heading',
+          depth: cap[2].charAt(0) === '=' ? 1 : 2,
+          text: cap[1]
+        });
         continue;
       }
-    }
-
-    // lheading
-    if (cap = this.rules.lheading.exec(src)) {
-      src = src.substring(cap[0].length);
-      this.tokens.push({
-        type: 'heading',
-        depth: cap[2].charAt(0) === '=' ? 1 : 2,
-        text: cap[1]
-      });
-      continue;
-    }
 
-    // top-level paragraph
-    if (top && (cap = this.rules.paragraph.exec(src))) {
-      src = src.substring(cap[0].length);
-      this.tokens.push({
-        type: 'paragraph',
-        text: cap[1].charAt(cap[1].length - 1) === '\n'
-          ? cap[1].slice(0, -1)
-          : cap[1]
-      });
-      continue;
-    }
+      // top-level paragraph
+      if (top && (cap = this.rules.paragraph.exec(src))) {
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'paragraph',
+          text: cap[1].charAt(cap[1].length - 1) === '\n'
+            ? cap[1].slice(0, -1)
+            : cap[1]
+        });
+        continue;
+      }
 
-    // text
-    if (cap = this.rules.text.exec(src)) {
-      // Top-level should never reach here.
-      src = src.substring(cap[0].length);
-      this.tokens.push({
-        type: 'text',
-        text: cap[0]
-      });
-      continue;
-    }
+      // text
+      if (cap = this.rules.text.exec(src)) {
+        // Top-level should never reach here.
+        src = src.substring(cap[0].length);
+        this.tokens.push({
+          type: 'text',
+          text: cap[0]
+        });
+        continue;
+      }
 
-    if (src) {
-      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
+      if (src) {
+        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
+      }
     }
-  }
-
-  return this.tokens;
-};
-
-/**
- * Inline-Level Grammar
- */
 
-var inline = {
-  escape: /^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/,
-  autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
-  url: noop,
-  tag: '^comment'
-    + '|^</[a-zA-Z][\\w:-]*\\s*>' // self-closing tag
-    + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag
-    + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. <?php ?>
-    + '|^<![a-zA-Z]+\\s[\\s\\S]*?>' // declaration, e.g. <!DOCTYPE html>
-    + '|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>', // CDATA section
-  link: /^!?\[(label)\]\(\s*(href)(?:\s+(title))?\s*\)/,
-  reflink: /^!?\[(label)\]\[(?!\s*\])((?:\\[\[\]]?|[^\[\]\\])+)\]/,
-  nolink: /^!?\[(?!\s*\])((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\](?:\[\])?/,
-  strong: /^__([^\s_])__(?!_)|^\*\*([^\s*])\*\*(?!\*)|^__([^\s][\s\S]*?[^\s])__(?!_)|^\*\*([^\s][\s\S]*?[^\s])\*\*(?!\*)/,
-  em: /^_([^\s_])_(?!_)|^\*([^\s*<\[])\*(?!\*)|^_([^\s<][\s\S]*?[^\s_])_(?!_|[^\spunctuation])|^_([^\s_<][\s\S]*?[^\s])_(?!_|[^\spunctuation])|^\*([^\s<"][\s\S]*?[^\s\*])\*(?!\*|[^\spunctuation])|^\*([^\s*"<\[][\s\S]*?[^\s])\*(?!\*)/,
-  code: /^(`+)([^`]|[^`][\s\S]*?[^`])\1(?!`)/,
-  br: /^( {2,}|\\)\n(?!\s*$)/,
-  del: noop,
-  text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*]|\b_|$)|[^ ](?= {2,}\n))|(?= {2,}\n))/
+    return this.tokens;
+  };
 };
 
-// list of punctuation marks from common mark spec
-// without ` and ] to workaround Rule 17 (inline code blocks/links)
-inline._punctuation = '!"#$%&\'()*+,\\-./:;<=>?@\\[^_{|}~';
-inline.em = edit(inline.em).replace(/punctuation/g, inline._punctuation).getRegex();
-
-inline._escapes = /\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g;
-
-inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
-inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;
-inline.autolink = edit(inline.autolink)
-  .replace('scheme', inline._scheme)
-  .replace('email', inline._email)
-  .getRegex();
-
-inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
-
-inline.tag = edit(inline.tag)
-  .replace('comment', block._comment)
-  .replace('attribute', inline._attribute)
-  .getRegex();
-
-inline._label = /(?:\[[^\[\]]*\]|\\.|`[^`]*`|[^\[\]\\`])*?/;
-inline._href = /<(?:\\[<>]?|[^\s<>\\])*>|[^\s\x00-\x1f]*/;
-inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;
-
-inline.link = edit(inline.link)
-  .replace('label', inline._label)
-  .replace('href', inline._href)
-  .replace('title', inline._title)
-  .getRegex();
-
-inline.reflink = edit(inline.reflink)
-  .replace('label', inline._label)
-  .getRegex();
 
-/**
- * Normal Inline Grammar
- */
-
-inline.normal = merge({}, inline);
+/***/ }),
 
-/**
- * Pedantic Inline Grammar
- */
+/***/ "./node_modules/marked/src/Parser.js":
+/*!*******************************************!*\
+  !*** ./node_modules/marked/src/Parser.js ***!
+  \*******************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
 
-inline.pedantic = merge({}, inline.normal, {
-  strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
-  em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/,
-  link: edit(/^!?\[(label)\]\((.*?)\)/)
-    .replace('label', inline._label)
-    .getRegex(),
-  reflink: edit(/^!?\[(label)\]\s*\[([^\]]*)\]/)
-    .replace('label', inline._label)
-    .getRegex()
-});
+const Renderer = __webpack_require__(/*! ./Renderer.js */ "./node_modules/marked/src/Renderer.js");
+const Slugger = __webpack_require__(/*! ./Slugger.js */ "./node_modules/marked/src/Slugger.js");
+const InlineLexer = __webpack_require__(/*! ./InlineLexer.js */ "./node_modules/marked/src/InlineLexer.js");
+const TextRenderer = __webpack_require__(/*! ./TextRenderer.js */ "./node_modules/marked/src/TextRenderer.js");
+const { defaults } = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
+const {
+  merge,
+  unescape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
 
 /**
- * GFM Inline Grammar
+ * Parsing & Compiling
  */
+module.exports = class Parser {
+  constructor(options) {
+    this.tokens = [];
+    this.token = null;
+    this.options = options || defaults;
+    this.options.renderer = this.options.renderer || new Renderer();
+    this.renderer = this.options.renderer;
+    this.renderer.options = this.options;
+    this.slugger = new Slugger();
+  }
+
+  /**
+   * Static Parse Method
+   */
+  static parse(tokens, options) {
+    const parser = new Parser(options);
+    return parser.parse(tokens);
+  };
 
-inline.gfm = merge({}, inline.normal, {
-  escape: edit(inline.escape).replace('])', '~|])').getRegex(),
-  _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,
-  url: /^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,
-  _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
-  del: /^~+(?=\S)([\s\S]*?\S)~+/,
-  text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*~]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))|(?= {2,}\n|[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))/
-});
+  /**
+   * Parse Loop
+   */
+  parse(tokens) {
+    this.inline = new InlineLexer(tokens.links, this.options);
+    // use an InlineLexer with a TextRenderer to extract pure text
+    this.inlineText = new InlineLexer(
+      tokens.links,
+      merge({}, this.options, { renderer: new TextRenderer() })
+    );
+    this.tokens = tokens.reverse();
 
-inline.gfm.url = edit(inline.gfm.url, 'i')
-  .replace('email', inline.gfm._extended_email)
-  .getRegex();
-/**
- * GFM + Line Breaks Inline Grammar
- */
+    let out = '';
+    while (this.next()) {
+      out += this.tok();
+    }
 
-inline.breaks = merge({}, inline.gfm, {
-  br: edit(inline.br).replace('{2,}', '*').getRegex(),
-  text: edit(inline.gfm.text)
-    .replace('\\b_', '\\b_| {2,}\\n')
-    .replace(/\{2,\}/g, '*')
-    .getRegex()
-});
+    return out;
+  };
 
-/**
- * Inline Lexer & Compiler
- */
+  /**
+   * Next Token
+   */
+  next() {
+    this.token = this.tokens.pop();
+    return this.token;
+  };
 
-function InlineLexer(links, options) {
-  this.options = options || marked.defaults;
-  this.links = links;
-  this.rules = inline.normal;
-  this.renderer = this.options.renderer || new Renderer();
-  this.renderer.options = this.options;
+  /**
+   * Preview Next Token
+   */
+  peek() {
+    return this.tokens[this.tokens.length - 1] || 0;
+  };
 
-  if (!this.links) {
-    throw new Error('Tokens array requires a `links` property.');
-  }
+  /**
+   * Parse Text Tokens
+   */
+  parseText() {
+    let body = this.token.text;
 
-  if (this.options.pedantic) {
-    this.rules = inline.pedantic;
-  } else if (this.options.gfm) {
-    if (this.options.breaks) {
-      this.rules = inline.breaks;
-    } else {
-      this.rules = inline.gfm;
+    while (this.peek().type === 'text') {
+      body += '\n' + this.next().text;
     }
-  }
-}
 
-/**
- * Expose Inline Rules
- */
-
-InlineLexer.rules = inline;
-
-/**
- * Static Lexing/Compiling Method
- */
+    return this.inline.output(body);
+  };
 
-InlineLexer.output = function(src, links, options) {
-  var inline = new InlineLexer(links, options);
-  return inline.output(src);
-};
+  /**
+   * Parse Current Token
+   */
+  tok() {
+    let body = '';
+    switch (this.token.type) {
+      case 'space': {
+        return '';
+      }
+      case 'hr': {
+        return this.renderer.hr();
+      }
+      case 'heading': {
+        return this.renderer.heading(
+          this.inline.output(this.token.text),
+          this.token.depth,
+          unescape(this.inlineText.output(this.token.text)),
+          this.slugger);
+      }
+      case 'code': {
+        return this.renderer.code(this.token.text,
+          this.token.lang,
+          this.token.escaped);
+      }
+      case 'table': {
+        let header = '',
+          i,
+          row,
+          cell,
+          j;
 
-/**
- * Lexing/Compiling
- */
+        // header
+        cell = '';
+        for (i = 0; i < this.token.header.length; i++) {
+          cell += this.renderer.tablecell(
+            this.inline.output(this.token.header[i]),
+            { header: true, align: this.token.align[i] }
+          );
+        }
+        header += this.renderer.tablerow(cell);
 
-InlineLexer.prototype.output = function(src) {
-  var out = '',
-      link,
-      text,
-      href,
-      title,
-      cap,
-      prevCapZero;
+        for (i = 0; i < this.token.cells.length; i++) {
+          row = this.token.cells[i];
 
-  while (src) {
-    // escape
-    if (cap = this.rules.escape.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += escape(cap[1]);
-      continue;
-    }
+          cell = '';
+          for (j = 0; j < row.length; j++) {
+            cell += this.renderer.tablecell(
+              this.inline.output(row[j]),
+              { header: false, align: this.token.align[j] }
+            );
+          }
 
-    // tag
-    if (cap = this.rules.tag.exec(src)) {
-      if (!this.inLink && /^<a /i.test(cap[0])) {
-        this.inLink = true;
-      } else if (this.inLink && /^<\/a>/i.test(cap[0])) {
-        this.inLink = false;
-      }
-      if (!this.inRawBlock && /^<(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
-        this.inRawBlock = true;
-      } else if (this.inRawBlock && /^<\/(pre|code|kbd|script)(\s|>)/i.test(cap[0])) {
-        this.inRawBlock = false;
-      }
-
-      src = src.substring(cap[0].length);
-      out += this.options.sanitize
-        ? this.options.sanitizer
-          ? this.options.sanitizer(cap[0])
-          : escape(cap[0])
-        : cap[0];
-      continue;
-    }
-
-    // link
-    if (cap = this.rules.link.exec(src)) {
-      var lastParenIndex = findClosingBracket(cap[2], '()');
-      if (lastParenIndex > -1) {
-        var linkLen = 4 + cap[1].length + lastParenIndex;
-        cap[2] = cap[2].substring(0, lastParenIndex);
-        cap[0] = cap[0].substring(0, linkLen).trim();
-        cap[3] = '';
-      }
-      src = src.substring(cap[0].length);
-      this.inLink = true;
-      href = cap[2];
-      if (this.options.pedantic) {
-        link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href);
-
-        if (link) {
-          href = link[1];
-          title = link[3];
-        } else {
-          title = '';
+          body += this.renderer.tablerow(cell);
         }
-      } else {
-        title = cap[3] ? cap[3].slice(1, -1) : '';
-      }
-      href = href.trim().replace(/^<([\s\S]*)>$/, '$1');
-      out += this.outputLink(cap, {
-        href: InlineLexer.escapes(href),
-        title: InlineLexer.escapes(title)
-      });
-      this.inLink = false;
-      continue;
-    }
-
-    // reflink, nolink
-    if ((cap = this.rules.reflink.exec(src))
-        || (cap = this.rules.nolink.exec(src))) {
-      src = src.substring(cap[0].length);
-      link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
-      link = this.links[link.toLowerCase()];
-      if (!link || !link.href) {
-        out += cap[0].charAt(0);
-        src = cap[0].substring(1) + src;
-        continue;
+        return this.renderer.table(header, body);
       }
-      this.inLink = true;
-      out += this.outputLink(cap, link);
-      this.inLink = false;
-      continue;
-    }
+      case 'blockquote_start': {
+        body = '';
 
-    // strong
-    if (cap = this.rules.strong.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));
-      continue;
-    }
+        while (this.next().type !== 'blockquote_end') {
+          body += this.tok();
+        }
 
-    // em
-    if (cap = this.rules.em.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));
-      continue;
-    }
+        return this.renderer.blockquote(body);
+      }
+      case 'list_start': {
+        body = '';
+        const ordered = this.token.ordered,
+          start = this.token.start;
 
-    // code
-    if (cap = this.rules.code.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += this.renderer.codespan(escape(cap[2].trim(), true));
-      continue;
-    }
+        while (this.next().type !== 'list_end') {
+          body += this.tok();
+        }
 
-    // br
-    if (cap = this.rules.br.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += this.renderer.br();
-      continue;
-    }
+        return this.renderer.list(body, ordered, start);
+      }
+      case 'list_item_start': {
+        body = '';
+        const loose = this.token.loose;
+        const checked = this.token.checked;
+        const task = this.token.task;
 
-    // del (gfm)
-    if (cap = this.rules.del.exec(src)) {
-      src = src.substring(cap[0].length);
-      out += this.renderer.del(this.output(cap[1]));
-      continue;
-    }
+        if (this.token.task) {
+          if (loose) {
+            if (this.peek().type === 'text') {
+              const nextToken = this.peek();
+              nextToken.text = this.renderer.checkbox(checked) + ' ' + nextToken.text;
+            } else {
+              this.tokens.push({
+                type: 'text',
+                text: this.renderer.checkbox(checked)
+              });
+            }
+          } else {
+            body += this.renderer.checkbox(checked);
+          }
+        }
 
-    // autolink
-    if (cap = this.rules.autolink.exec(src)) {
-      src = src.substring(cap[0].length);
-      if (cap[2] === '@') {
-        text = escape(this.mangle(cap[1]));
-        href = 'mailto:' + text;
-      } else {
-        text = escape(cap[1]);
-        href = text;
+        while (this.next().type !== 'list_item_end') {
+          body += !loose && this.token.type === 'text'
+            ? this.parseText()
+            : this.tok();
+        }
+        return this.renderer.listitem(body, task, checked);
       }
-      out += this.renderer.link(href, null, text);
-      continue;
-    }
-
-    // url (gfm)
-    if (!this.inLink && (cap = this.rules.url.exec(src))) {
-      if (cap[2] === '@') {
-        text = escape(cap[0]);
-        href = 'mailto:' + text;
-      } else {
-        // do extended autolink path validation
-        do {
-          prevCapZero = cap[0];
-          cap[0] = this.rules._backpedal.exec(cap[0])[0];
-        } while (prevCapZero !== cap[0]);
-        text = escape(cap[0]);
-        if (cap[1] === 'www.') {
-          href = 'http://' + text;
+      case 'html': {
+        // TODO parse inline content if parameter markdown=1
+        return this.renderer.html(this.token.text);
+      }
+      case 'paragraph': {
+        return this.renderer.paragraph(this.inline.output(this.token.text));
+      }
+      case 'text': {
+        return this.renderer.paragraph(this.parseText());
+      }
+      default: {
+        const errMsg = 'Token with "' + this.token.type + '" type was not found.';
+        if (this.options.silent) {
+          console.log(errMsg);
         } else {
-          href = text;
+          throw new Error(errMsg);
         }
       }
-      src = src.substring(cap[0].length);
-      out += this.renderer.link(href, null, text);
-      continue;
-    }
-
-    // text
-    if (cap = this.rules.text.exec(src)) {
-      src = src.substring(cap[0].length);
-      if (this.inRawBlock) {
-        out += this.renderer.text(this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]);
-      } else {
-        out += this.renderer.text(escape(this.smartypants(cap[0])));
-      }
-      continue;
     }
-
-    if (src) {
-      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
-    }
-  }
-
-  return out;
-};
-
-InlineLexer.escapes = function(text) {
-  return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;
-};
-
-/**
- * Compile Link
- */
-
-InlineLexer.prototype.outputLink = function(cap, link) {
-  var href = link.href,
-      title = link.title ? escape(link.title) : null;
-
-  return cap[0].charAt(0) !== '!'
-    ? this.renderer.link(href, title, this.output(cap[1]))
-    : this.renderer.image(href, title, escape(cap[1]));
-};
-
-/**
- * Smartypants Transformations
- */
-
-InlineLexer.prototype.smartypants = function(text) {
-  if (!this.options.smartypants) return text;
-  return text
-    // em-dashes
-    .replace(/---/g, '\u2014')
-    // en-dashes
-    .replace(/--/g, '\u2013')
-    // opening singles
-    .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
-    // closing singles & apostrophes
-    .replace(/'/g, '\u2019')
-    // opening doubles
-    .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
-    // closing doubles
-    .replace(/"/g, '\u201d')
-    // ellipses
-    .replace(/\.{3}/g, '\u2026');
+  };
 };
 
-/**
- * Mangle Links
- */
 
-InlineLexer.prototype.mangle = function(text) {
-  if (!this.options.mangle) return text;
-  var out = '',
-      l = text.length,
-      i = 0,
-      ch;
+/***/ }),
 
-  for (; i < l; i++) {
-    ch = text.charCodeAt(i);
-    if (Math.random() > 0.5) {
-      ch = 'x' + ch.toString(16);
-    }
-    out += '&#' + ch + ';';
-  }
+/***/ "./node_modules/marked/src/Renderer.js":
+/*!*********************************************!*\
+  !*** ./node_modules/marked/src/Renderer.js ***!
+  \*********************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
 
-  return out;
-};
+const { defaults } = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
+const {
+  cleanUrl,
+  escape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
 
 /**
  * Renderer
  */
+module.exports = class Renderer {
+  constructor(options) {
+    this.options = options || defaults;
+  }
 
-function Renderer(options) {
-  this.options = options || marked.defaults;
-}
+  code(code, infostring, escaped) {
+    const lang = (infostring || '').match(/\S*/)[0];
+    if (this.options.highlight) {
+      const out = this.options.highlight(code, lang);
+      if (out != null && out !== code) {
+        escaped = true;
+        code = out;
+      }
+    }
 
-Renderer.prototype.code = function(code, infostring, escaped) {
-  var lang = (infostring || '').match(/\S*/)[0];
-  if (this.options.highlight) {
-    var out = this.options.highlight(code, lang);
-    if (out != null && out !== code) {
-      escaped = true;
-      code = out;
+    if (!lang) {
+      return '<pre><code>'
+        + (escaped ? code : escape(code, true))
+        + '</code></pre>';
     }
-  }
 
-  if (!lang) {
-    return '<pre><code>'
+    return '<pre><code class="'
+      + this.options.langPrefix
+      + escape(lang, true)
+      + '">'
       + (escaped ? code : escape(code, true))
-      + '</code></pre>';
-  }
-
-  return '<pre><code class="'
-    + this.options.langPrefix
-    + escape(lang, true)
-    + '">'
-    + (escaped ? code : escape(code, true))
-    + '</code></pre>\n';
-};
+      + '</code></pre>\n';
+  };
 
-Renderer.prototype.blockquote = function(quote) {
-  return '<blockquote>\n' + quote + '</blockquote>\n';
-};
+  blockquote(quote) {
+    return '<blockquote>\n' + quote + '</blockquote>\n';
+  };
 
-Renderer.prototype.html = function(html) {
-  return html;
-};
+  html(html) {
+    return html;
+  };
 
-Renderer.prototype.heading = function(text, level, raw, slugger) {
-  if (this.options.headerIds) {
-    return '<h'
-      + level
-      + ' id="'
-      + this.options.headerPrefix
-      + slugger.slug(raw)
-      + '">'
-      + text
-      + '</h'
-      + level
-      + '>\n';
-  }
-  // ignore IDs
-  return '<h' + level + '>' + text + '</h' + level + '>\n';
-};
+  heading(text, level, raw, slugger) {
+    if (this.options.headerIds) {
+      return '<h'
+        + level
+        + ' id="'
+        + this.options.headerPrefix
+        + slugger.slug(raw)
+        + '">'
+        + text
+        + '</h'
+        + level
+        + '>\n';
+    }
+    // ignore IDs
+    return '<h' + level + '>' + text + '</h' + level + '>\n';
+  };
 
-Renderer.prototype.hr = function() {
-  return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
-};
+  hr() {
+    return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
+  };
 
-Renderer.prototype.list = function(body, ordered, start) {
-  var type = ordered ? 'ol' : 'ul',
+  list(body, ordered, start) {
+    const type = ordered ? 'ol' : 'ul',
       startatt = (ordered && start !== 1) ? (' start="' + start + '"') : '';
-  return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
-};
-
-Renderer.prototype.listitem = function(text) {
-  return '<li>' + text + '</li>\n';
-};
-
-Renderer.prototype.checkbox = function(checked) {
-  return '<input '
-    + (checked ? 'checked="" ' : '')
-    + 'disabled="" type="checkbox"'
-    + (this.options.xhtml ? ' /' : '')
-    + '> ';
-};
-
-Renderer.prototype.paragraph = function(text) {
-  return '<p>' + text + '</p>\n';
-};
-
-Renderer.prototype.table = function(header, body) {
-  if (body) body = '<tbody>' + body + '</tbody>';
-
-  return '<table>\n'
-    + '<thead>\n'
-    + header
-    + '</thead>\n'
-    + body
-    + '</table>\n';
-};
+    return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
+  };
 
-Renderer.prototype.tablerow = function(content) {
-  return '<tr>\n' + content + '</tr>\n';
-};
+  listitem(text) {
+    return '<li>' + text + '</li>\n';
+  };
 
-Renderer.prototype.tablecell = function(content, flags) {
-  var type = flags.header ? 'th' : 'td';
-  var tag = flags.align
-    ? '<' + type + ' align="' + flags.align + '">'
-    : '<' + type + '>';
-  return tag + content + '</' + type + '>\n';
-};
+  checkbox(checked) {
+    return '<input '
+      + (checked ? 'checked="" ' : '')
+      + 'disabled="" type="checkbox"'
+      + (this.options.xhtml ? ' /' : '')
+      + '> ';
+  };
 
-// span level renderer
-Renderer.prototype.strong = function(text) {
-  return '<strong>' + text + '</strong>';
-};
+  paragraph(text) {
+    return '<p>' + text + '</p>\n';
+  };
 
-Renderer.prototype.em = function(text) {
-  return '<em>' + text + '</em>';
-};
+  table(header, body) {
+    if (body) body = '<tbody>' + body + '</tbody>';
 
-Renderer.prototype.codespan = function(text) {
-  return '<code>' + text + '</code>';
-};
+    return '<table>\n'
+      + '<thead>\n'
+      + header
+      + '</thead>\n'
+      + body
+      + '</table>\n';
+  };
 
-Renderer.prototype.br = function() {
-  return this.options.xhtml ? '<br/>' : '<br>';
-};
+  tablerow(content) {
+    return '<tr>\n' + content + '</tr>\n';
+  };
 
-Renderer.prototype.del = function(text) {
-  return '<del>' + text + '</del>';
-};
+  tablecell(content, flags) {
+    const type = flags.header ? 'th' : 'td';
+    const tag = flags.align
+      ? '<' + type + ' align="' + flags.align + '">'
+      : '<' + type + '>';
+    return tag + content + '</' + type + '>\n';
+  };
 
-Renderer.prototype.link = function(href, title, text) {
-  href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
-  if (href === null) {
-    return text;
-  }
-  var out = '<a href="' + escape(href) + '"';
-  if (title) {
-    out += ' title="' + title + '"';
-  }
-  out += '>' + text + '</a>';
-  return out;
-};
+  // span level renderer
+  strong(text) {
+    return '<strong>' + text + '</strong>';
+  };
 
-Renderer.prototype.image = function(href, title, text) {
-  href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
-  if (href === null) {
-    return text;
-  }
+  em(text) {
+    return '<em>' + text + '</em>';
+  };
 
-  var out = '<img src="' + href + '" alt="' + text + '"';
-  if (title) {
-    out += ' title="' + title + '"';
-  }
-  out += this.options.xhtml ? '/>' : '>';
-  return out;
-};
+  codespan(text) {
+    return '<code>' + text + '</code>';
+  };
 
-Renderer.prototype.text = function(text) {
-  return text;
-};
+  br() {
+    return this.options.xhtml ? '<br/>' : '<br>';
+  };
 
-/**
- * TextRenderer
- * returns only the textual part of the token
- */
+  del(text) {
+    return '<del>' + text + '</del>';
+  };
 
-function TextRenderer() {}
+  link(href, title, text) {
+    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
+    if (href === null) {
+      return text;
+    }
+    let out = '<a href="' + escape(href) + '"';
+    if (title) {
+      out += ' title="' + title + '"';
+    }
+    out += '>' + text + '</a>';
+    return out;
+  };
 
-// no need for block level renderers
+  image(href, title, text) {
+    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);
+    if (href === null) {
+      return text;
+    }
 
-TextRenderer.prototype.strong =
-TextRenderer.prototype.em =
-TextRenderer.prototype.codespan =
-TextRenderer.prototype.del =
-TextRenderer.prototype.text = function(text) {
-  return text;
-};
+    let out = '<img src="' + href + '" alt="' + text + '"';
+    if (title) {
+      out += ' title="' + title + '"';
+    }
+    out += this.options.xhtml ? '/>' : '>';
+    return out;
+  };
 
-TextRenderer.prototype.link =
-TextRenderer.prototype.image = function(href, title, text) {
-  return '' + text;
+  text(text) {
+    return text;
+  };
 };
 
-TextRenderer.prototype.br = function() {
-  return '';
-};
 
-/**
- * Parsing & Compiling
- */
+/***/ }),
 
-function Parser(options) {
-  this.tokens = [];
-  this.token = null;
-  this.options = options || marked.defaults;
-  this.options.renderer = this.options.renderer || new Renderer();
-  this.renderer = this.options.renderer;
-  this.renderer.options = this.options;
-  this.slugger = new Slugger();
-}
+/***/ "./node_modules/marked/src/Slugger.js":
+/*!********************************************!*\
+  !*** ./node_modules/marked/src/Slugger.js ***!
+  \********************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
 
 /**
- * Static Parse Method
+ * Slugger generates header id
  */
+module.exports = class Slugger {
+  constructor() {
+    this.seen = {};
+  }
+
+  /**
+   * Convert string to unique id
+   */
+  slug(value) {
+    let slug = value
+      .toLowerCase()
+      .trim()
+      .replace(/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g, '')
+      .replace(/\s/g, '-');
+
+    if (this.seen.hasOwnProperty(slug)) {
+      const originalSlug = slug;
+      do {
+        this.seen[originalSlug]++;
+        slug = originalSlug + '-' + this.seen[originalSlug];
+      } while (this.seen.hasOwnProperty(slug));
+    }
+    this.seen[slug] = 0;
 
-Parser.parse = function(src, options) {
-  var parser = new Parser(options);
-  return parser.parse(src);
+    return slug;
+  };
 };
 
-/**
- * Parse Loop
- */
-
-Parser.prototype.parse = function(src) {
-  this.inline = new InlineLexer(src.links, this.options);
-  // use an InlineLexer with a TextRenderer to extract pure text
-  this.inlineText = new InlineLexer(
-    src.links,
-    merge({}, this.options, { renderer: new TextRenderer() })
-  );
-  this.tokens = src.reverse();
 
-  var out = '';
-  while (this.next()) {
-    out += this.tok();
-  }
+/***/ }),
 
-  return out;
-};
+/***/ "./node_modules/marked/src/TextRenderer.js":
+/*!*************************************************!*\
+  !*** ./node_modules/marked/src/TextRenderer.js ***!
+  \*************************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
 
 /**
- * Next Token
+ * TextRenderer
+ * returns only the textual part of the token
  */
+module.exports = class TextRenderer {
+  // no need for block level renderers
+  strong(text) {
+    return text;
+  }
 
-Parser.prototype.next = function() {
-  this.token = this.tokens.pop();
-  return this.token;
-};
+  em(text) {
+    return text;
+  }
 
-/**
- * Preview Next Token
- */
+  codespan(text) {
+    return text;
+  }
 
-Parser.prototype.peek = function() {
-  return this.tokens[this.tokens.length - 1] || 0;
-};
+  del(text) {
+    return text;
+  }
 
-/**
- * Parse Text Tokens
- */
+  text(text) {
+    return text;
+  }
 
-Parser.prototype.parseText = function() {
-  var body = this.token.text;
+  link(href, title, text) {
+    return '' + text;
+  }
 
-  while (this.peek().type === 'text') {
-    body += '\n' + this.next().text;
+  image(href, title, text) {
+    return '' + text;
   }
 
-  return this.inline.output(body);
+  br() {
+    return '';
+  }
 };
 
-/**
- * Parse Current Token
- */
-
-Parser.prototype.tok = function() {
-  switch (this.token.type) {
-    case 'space': {
-      return '';
-    }
-    case 'hr': {
-      return this.renderer.hr();
-    }
-    case 'heading': {
-      return this.renderer.heading(
-        this.inline.output(this.token.text),
-        this.token.depth,
-        unescape(this.inlineText.output(this.token.text)),
-        this.slugger);
-    }
-    case 'code': {
-      return this.renderer.code(this.token.text,
-        this.token.lang,
-        this.token.escaped);
-    }
-    case 'table': {
-      var header = '',
-          body = '',
-          i,
-          row,
-          cell,
-          j;
-
-      // header
-      cell = '';
-      for (i = 0; i < this.token.header.length; i++) {
-        cell += this.renderer.tablecell(
-          this.inline.output(this.token.header[i]),
-          { header: true, align: this.token.align[i] }
-        );
-      }
-      header += this.renderer.tablerow(cell);
-
-      for (i = 0; i < this.token.cells.length; i++) {
-        row = this.token.cells[i];
 
-        cell = '';
-        for (j = 0; j < row.length; j++) {
-          cell += this.renderer.tablecell(
-            this.inline.output(row[j]),
-            { header: false, align: this.token.align[j] }
-          );
-        }
-
-        body += this.renderer.tablerow(cell);
-      }
-      return this.renderer.table(header, body);
-    }
-    case 'blockquote_start': {
-      body = '';
-
-      while (this.next().type !== 'blockquote_end') {
-        body += this.tok();
-      }
-
-      return this.renderer.blockquote(body);
-    }
-    case 'list_start': {
-      body = '';
-      var ordered = this.token.ordered,
-          start = this.token.start;
-
-      while (this.next().type !== 'list_end') {
-        body += this.tok();
-      }
-
-      return this.renderer.list(body, ordered, start);
-    }
-    case 'list_item_start': {
-      body = '';
-      var loose = this.token.loose;
-      var checked = this.token.checked;
-      var task = this.token.task;
-
-      if (this.token.task) {
-        body += this.renderer.checkbox(checked);
-      }
+/***/ }),
 
-      while (this.next().type !== 'list_item_end') {
-        body += !loose && this.token.type === 'text'
-          ? this.parseText()
-          : this.tok();
-      }
-      return this.renderer.listitem(body, task, checked);
-    }
-    case 'html': {
-      // TODO parse inline content if parameter markdown=1
-      return this.renderer.html(this.token.text);
-    }
-    case 'paragraph': {
-      return this.renderer.paragraph(this.inline.output(this.token.text));
-    }
-    case 'text': {
-      return this.renderer.paragraph(this.parseText());
-    }
-    default: {
-      var errMsg = 'Token with "' + this.token.type + '" type was not found.';
-      if (this.options.silent) {
-        console.log(errMsg);
-      } else {
-        throw new Error(errMsg);
-      }
-    }
-  }
-};
+/***/ "./node_modules/marked/src/defaults.js":
+/*!*********************************************!*\
+  !*** ./node_modules/marked/src/defaults.js ***!
+  \*********************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
 
-/**
- * Slugger generates header id
- */
+function getDefaults() {
+  return {
+    baseUrl: null,
+    breaks: false,
+    gfm: true,
+    headerIds: true,
+    headerPrefix: '',
+    highlight: null,
+    langPrefix: 'language-',
+    mangle: true,
+    pedantic: false,
+    renderer: null,
+    sanitize: false,
+    sanitizer: null,
+    silent: false,
+    smartLists: false,
+    smartypants: false,
+    xhtml: false
+  };
+}
 
-function Slugger() {
-  this.seen = {};
+function changeDefaults(newDefaults) {
+  module.exports.defaults = newDefaults;
 }
 
-/**
- * Convert string to unique id
- */
+module.exports = {
+  defaults: getDefaults(),
+  getDefaults,
+  changeDefaults
+};
 
-Slugger.prototype.slug = function(value) {
-  var slug = value
-    .toLowerCase()
-    .trim()
-    .replace(/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&()*+,./:;<=>?@[\]^`{|}~]/g, '')
-    .replace(/\s/g, '-');
 
-  if (this.seen.hasOwnProperty(slug)) {
-    var originalSlug = slug;
-    do {
-      this.seen[originalSlug]++;
-      slug = originalSlug + '-' + this.seen[originalSlug];
-    } while (this.seen.hasOwnProperty(slug));
-  }
-  this.seen[slug] = 0;
+/***/ }),
 
-  return slug;
-};
+/***/ "./node_modules/marked/src/helpers.js":
+/*!********************************************!*\
+  !*** ./node_modules/marked/src/helpers.js ***!
+  \********************************************/
+/*! no static exports found */
+/***/ (function(module, exports) {
 
 /**
  * Helpers
  */
-
+const escapeTest = /[&<>"']/;
+const escapeReplace = /[&<>"']/g;
+const escapeTestNoEncode = /[<>"']|&(?!#?\w+;)/;
+const escapeReplaceNoEncode = /[<>"']|&(?!#?\w+;)/g;
+const escapeReplacements = {
+  '&': '&amp;',
+  '<': '&lt;',
+  '>': '&gt;',
+  '"': '&quot;',
+  "'": '&#39;'
+};
+const getEscapeReplacement = (ch) => escapeReplacements[ch];
 function escape(html, encode) {
   if (encode) {
-    if (escape.escapeTest.test(html)) {
-      return html.replace(escape.escapeReplace, function(ch) { return escape.replacements[ch]; });
+    if (escapeTest.test(html)) {
+      return html.replace(escapeReplace, getEscapeReplacement);
     }
   } else {
-    if (escape.escapeTestNoEncode.test(html)) {
-      return html.replace(escape.escapeReplaceNoEncode, function(ch) { return escape.replacements[ch]; });
+    if (escapeTestNoEncode.test(html)) {
+      return html.replace(escapeReplaceNoEncode, getEscapeReplacement);
     }
   }
 
   return html;
 }
 
-escape.escapeTest = /[&<>"']/;
-escape.escapeReplace = /[&<>"']/g;
-escape.replacements = {
-  '&': '&amp;',
-  '<': '&lt;',
-  '>': '&gt;',
-  '"': '&quot;',
-  "'": '&#39;'
-};
-
-escape.escapeTestNoEncode = /[<>"']|&(?!#?\w+;)/;
-escape.escapeReplaceNoEncode = /[<>"']|&(?!#?\w+;)/g;
+const unescapeTest = /&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig;
 
 function unescape(html) {
   // explicitly match decimal, hex, and named HTML entities
-  return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig, function(_, n) {
+  return html.replace(unescapeTest, (_, n) => {
     n = n.toLowerCase();
     if (n === 'colon') return ':';
     if (n.charAt(0) === '#') {
@@ -15163,27 +14528,32 @@ function unescape(html) {
   });
 }
 
+const caret = /(^|[^\[])\^/g;
 function edit(regex, opt) {
   regex = regex.source || regex;
   opt = opt || '';
-  return {
-    replace: function(name, val) {
+  const obj = {
+    replace: (name, val) => {
       val = val.source || val;
-      val = val.replace(/(^|[^\[])\^/g, '$1');
+      val = val.replace(caret, '$1');
       regex = regex.replace(name, val);
-      return this;
+      return obj;
     },
-    getRegex: function() {
+    getRegex: () => {
       return new RegExp(regex, opt);
     }
   };
+  return obj;
 }
 
+const nonWordAndColonTest = /[^\w:]/g;
+const originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;
 function cleanUrl(sanitize, base, href) {
   if (sanitize) {
+    let prot;
     try {
-      var prot = decodeURIComponent(unescape(href))
-        .replace(/[^\w:]/g, '')
+      prot = decodeURIComponent(unescape(href))
+        .replace(nonWordAndColonTest, '')
         .toLowerCase();
     } catch (e) {
       return null;
@@ -15203,37 +14573,46 @@ function cleanUrl(sanitize, base, href) {
   return href;
 }
 
+const baseUrls = {};
+const justDomain = /^[^:]+:\/*[^/]*$/;
+const protocol = /^([^:]+:)[\s\S]*$/;
+const domain = /^([^:]+:\/*[^/]*)[\s\S]*$/;
+
 function resolveUrl(base, href) {
   if (!baseUrls[' ' + base]) {
     // we can ignore everything in base after the last slash of its path component,
     // but we might need to add _that_
     // https://tools.ietf.org/html/rfc3986#section-3
-    if (/^[^:]+:\/*[^/]*$/.test(base)) {
+    if (justDomain.test(base)) {
       baseUrls[' ' + base] = base + '/';
     } else {
       baseUrls[' ' + base] = rtrim(base, '/', true);
     }
   }
   base = baseUrls[' ' + base];
+  const relativeBase = base.indexOf(':') === -1;
 
-  if (href.slice(0, 2) === '//') {
-    return base.replace(/:[\s\S]*/, ':') + href;
+  if (href.substring(0, 2) === '//') {
+    if (relativeBase) {
+      return href;
+    }
+    return base.replace(protocol, '$1') + href;
   } else if (href.charAt(0) === '/') {
-    return base.replace(/(:\/*[^/]*)[\s\S]*/, '$1') + href;
+    if (relativeBase) {
+      return href;
+    }
+    return base.replace(domain, '$1') + href;
   } else {
     return base + href;
   }
 }
-var baseUrls = {};
-var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;
 
-function noop() {}
-noop.exec = noop;
+const noopTest = { exec: function noopTest() {} };
 
 function merge(obj) {
-  var i = 1,
-      target,
-      key;
+  let i = 1,
+    target,
+    key;
 
   for (; i < arguments.length; i++) {
     target = arguments[i];
@@ -15250,21 +14629,21 @@ function merge(obj) {
 function splitCells(tableRow, count) {
   // ensure that every cell-delimiting pipe has a space
   // before it to distinguish it from an escaped pipe
-  var row = tableRow.replace(/\|/g, function(match, offset, str) {
-        var escaped = false,
-            curr = offset;
-        while (--curr >= 0 && str[curr] === '\\') escaped = !escaped;
-        if (escaped) {
-          // odd number of slashes means | is escaped
-          // so we leave it alone
-          return '|';
-        } else {
-          // add space before unescaped |
-          return ' |';
-        }
-      }),
-      cells = row.split(/ \|/),
-      i = 0;
+  const row = tableRow.replace(/\|/g, (match, offset, str) => {
+      let escaped = false,
+        curr = offset;
+      while (--curr >= 0 && str[curr] === '\\') escaped = !escaped;
+      if (escaped) {
+        // odd number of slashes means | is escaped
+        // so we leave it alone
+        return '|';
+      } else {
+        // add space before unescaped |
+        return ' |';
+      }
+    }),
+    cells = row.split(/ \|/);
+  let i = 0;
 
   if (cells.length > count) {
     cells.splice(count);
@@ -15283,16 +14662,17 @@ function splitCells(tableRow, count) {
 // /c*$/ is vulnerable to REDOS.
 // invert: Remove suffix of non-c chars instead. Default falsey.
 function rtrim(str, c, invert) {
-  if (str.length === 0) {
+  const l = str.length;
+  if (l === 0) {
     return '';
   }
 
   // Length of suffix matching the invert condition.
-  var suffLen = 0;
+  let suffLen = 0;
 
   // Step left until we fail to match the invert condition.
-  while (suffLen < str.length) {
-    var currChar = str.charAt(str.length - suffLen - 1);
+  while (suffLen < l) {
+    const currChar = str.charAt(l - suffLen - 1);
     if (currChar === c && !invert) {
       suffLen++;
     } else if (currChar !== c && invert) {
@@ -15302,15 +14682,17 @@ function rtrim(str, c, invert) {
     }
   }
 
-  return str.substr(0, str.length - suffLen);
+  return str.substr(0, l - suffLen);
 }
 
 function findClosingBracket(str, b) {
   if (str.indexOf(b[1]) === -1) {
     return -1;
   }
-  var level = 0;
-  for (var i = 0; i < str.length; i++) {
+  const l = str.length;
+  let level = 0,
+    i = 0;
+  for (; i < l; i++) {
     if (str[i] === '\\') {
       i++;
     } else if (str[i] === b[0]) {
@@ -15331,10 +14713,50 @@ function checkSanitizeDeprecation(opt) {
   }
 }
 
+module.exports = {
+  escape,
+  unescape,
+  edit,
+  cleanUrl,
+  resolveUrl,
+  noopTest,
+  merge,
+  splitCells,
+  rtrim,
+  findClosingBracket,
+  checkSanitizeDeprecation
+};
+
+
+/***/ }),
+
+/***/ "./node_modules/marked/src/marked.js":
+/*!*******************************************!*\
+  !*** ./node_modules/marked/src/marked.js ***!
+  \*******************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+const Lexer = __webpack_require__(/*! ./Lexer.js */ "./node_modules/marked/src/Lexer.js");
+const Parser = __webpack_require__(/*! ./Parser.js */ "./node_modules/marked/src/Parser.js");
+const Renderer = __webpack_require__(/*! ./Renderer.js */ "./node_modules/marked/src/Renderer.js");
+const TextRenderer = __webpack_require__(/*! ./TextRenderer.js */ "./node_modules/marked/src/TextRenderer.js");
+const InlineLexer = __webpack_require__(/*! ./InlineLexer.js */ "./node_modules/marked/src/InlineLexer.js");
+const Slugger = __webpack_require__(/*! ./Slugger.js */ "./node_modules/marked/src/Slugger.js");
+const {
+  merge,
+  checkSanitizeDeprecation,
+  escape
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
+const {
+  getDefaults,
+  changeDefaults,
+  defaults
+} = __webpack_require__(/*! ./defaults.js */ "./node_modules/marked/src/defaults.js");
+
 /**
  * Marked
  */
-
 function marked(src, opt, callback) {
   // throw error in case of non string input
   if (typeof src === 'undefined' || src === null) {
@@ -15353,11 +14775,10 @@ function marked(src, opt, callback) {
 
     opt = merge({}, marked.defaults, opt || {});
     checkSanitizeDeprecation(opt);
-
-    var highlight = opt.highlight,
-        tokens,
-        pending,
-        i = 0;
+    const highlight = opt.highlight;
+    let tokens,
+      pending,
+      i = 0;
 
     try {
       tokens = Lexer.lex(src, opt);
@@ -15367,128 +14788,357 @@ function marked(src, opt, callback) {
 
     pending = tokens.length;
 
-    var done = function(err) {
-      if (err) {
-        opt.highlight = highlight;
-        return callback(err);
-      }
+    const done = function(err) {
+      if (err) {
+        opt.highlight = highlight;
+        return callback(err);
+      }
+
+      let out;
+
+      try {
+        out = Parser.parse(tokens, opt);
+      } catch (e) {
+        err = e;
+      }
+
+      opt.highlight = highlight;
+
+      return err
+        ? callback(err)
+        : callback(null, out);
+    };
+
+    if (!highlight || highlight.length < 3) {
+      return done();
+    }
+
+    delete opt.highlight;
+
+    if (!pending) return done();
+
+    for (; i < tokens.length; i++) {
+      (function(token) {
+        if (token.type !== 'code') {
+          return --pending || done();
+        }
+        return highlight(token.text, token.lang, function(err, code) {
+          if (err) return done(err);
+          if (code == null || code === token.text) {
+            return --pending || done();
+          }
+          token.text = code;
+          token.escaped = true;
+          --pending || done();
+        });
+      })(tokens[i]);
+    }
+
+    return;
+  }
+  try {
+    opt = merge({}, marked.defaults, opt || {});
+    checkSanitizeDeprecation(opt);
+    return Parser.parse(Lexer.lex(src, opt), opt);
+  } catch (e) {
+    e.message += '\nPlease report this to https://github.com/markedjs/marked.';
+    if ((opt || marked.defaults).silent) {
+      return '<p>An error occurred:</p><pre>'
+        + escape(e.message + '', true)
+        + '</pre>';
+    }
+    throw e;
+  }
+}
+
+/**
+ * Options
+ */
+
+marked.options =
+marked.setOptions = function(opt) {
+  merge(marked.defaults, opt);
+  changeDefaults(marked.defaults);
+  return marked;
+};
+
+marked.getDefaults = getDefaults;
+
+marked.defaults = defaults;
+
+/**
+ * Expose
+ */
+
+marked.Parser = Parser;
+marked.parser = Parser.parse;
+
+marked.Renderer = Renderer;
+marked.TextRenderer = TextRenderer;
+
+marked.Lexer = Lexer;
+marked.lexer = Lexer.lex;
+
+marked.InlineLexer = InlineLexer;
+marked.inlineLexer = InlineLexer.output;
+
+marked.Slugger = Slugger;
+
+marked.parse = marked;
+
+module.exports = marked;
+
+
+/***/ }),
+
+/***/ "./node_modules/marked/src/rules.js":
+/*!******************************************!*\
+  !*** ./node_modules/marked/src/rules.js ***!
+  \******************************************/
+/*! no static exports found */
+/***/ (function(module, exports, __webpack_require__) {
+
+const {
+  noopTest,
+  edit,
+  merge
+} = __webpack_require__(/*! ./helpers.js */ "./node_modules/marked/src/helpers.js");
+
+/**
+ * Block-Level Grammar
+ */
+const block = {
+  newline: /^\n+/,
+  code: /^( {4}[^\n]+\n*)+/,
+  fences: /^ {0,3}(`{3,}|~{3,})([^`~\n]*)\n(?:|([\s\S]*?)\n)(?: {0,3}\1[~`]* *(?:\n+|$)|$)/,
+  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
+  heading: /^ {0,3}(#{1,6}) +([^\n]*?)(?: +#+)? *(?:\n+|$)/,
+  blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
+  list: /^( {0,3})(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
+  html: '^ {0,3}(?:' // optional indentation
+    + '<(script|pre|style)[\\s>][\\s\\S]*?(?:</\\1>[^\\n]*\\n+|$)' // (1)
+    + '|comment[^\\n]*(\\n+|$)' // (2)
+    + '|<\\?[\\s\\S]*?\\?>\\n*' // (3)
+    + '|<![A-Z][\\s\\S]*?>\\n*' // (4)
+    + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5)
+    + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6)
+    + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag
+    + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=[ \\t]*(?:\\n|$))[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag
+    + ')',
+  def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
+  nptable: noopTest,
+  table: noopTest,
+  lheading: /^([^\n]+)\n {0,3}(=+|-+) *(?:\n+|$)/,
+  // regex template, placeholders will be replaced according to different paragraph
+  // interruption rules of commonmark and the original markdown spec:
+  _paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\n]+)*)/,
+  text: /^[^\n]+/
+};
+
+block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/;
+block._title = /(?:"(?:\\"?|[^"\\])*"|'[^'\n]*(?:\n[^'\n]+)*\n?'|\([^()]*\))/;
+block.def = edit(block.def)
+  .replace('label', block._label)
+  .replace('title', block._title)
+  .getRegex();
+
+block.bullet = /(?:[*+-]|\d{1,9}\.)/;
+block.item = /^( *)(bull) ?[^\n]*(?:\n(?!\1bull ?)[^\n]*)*/;
+block.item = edit(block.item, 'gm')
+  .replace(/bull/g, block.bullet)
+  .getRegex();
+
+block.list = edit(block.list)
+  .replace(/bull/g, block.bullet)
+  .replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))')
+  .replace('def', '\\n+(?=' + block.def.source + ')')
+  .getRegex();
+
+block._tag = 'address|article|aside|base|basefont|blockquote|body|caption'
+  + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'
+  + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'
+  + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'
+  + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'
+  + '|track|ul';
+block._comment = /<!--(?!-?>)[\s\S]*?-->/;
+block.html = edit(block.html, 'i')
+  .replace('comment', block._comment)
+  .replace('tag', block._tag)
+  .replace('attribute', / +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/)
+  .getRegex();
+
+block.paragraph = edit(block._paragraph)
+  .replace('hr', block.hr)
+  .replace('heading', ' {0,3}#{1,6} +')
+  .replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs
+  .replace('blockquote', ' {0,3}>')
+  .replace('fences', ' {0,3}(?:`{3,}|~{3,})[^`\\n]*\\n')
+  .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt
+  .replace('html', '</?(?:tag)(?: +|\\n|/?>)|<(?:script|pre|style|!--)')
+  .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks
+  .getRegex();
+
+block.blockquote = edit(block.blockquote)
+  .replace('paragraph', block.paragraph)
+  .getRegex();
+
+/**
+ * Normal Block Grammar
+ */
+
+block.normal = merge({}, block);
+
+/**
+ * GFM Block Grammar
+ */
+
+block.gfm = merge({}, block.normal, {
+  nptable: /^ *([^|\n ].*\|.*)\n *([-:]+ *\|[-| :]*)(?:\n((?:.*[^>\n ].*(?:\n|$))*)\n*|$)/,
+  table: /^ *\|(.+)\n *\|?( *[-:]+[-| :]*)(?:\n((?: *[^>\n ].*(?:\n|$))*)\n*|$)/
+});
+
+/**
+ * Pedantic grammar (original John Gruber's loose markdown specification)
+ */
+
+block.pedantic = merge({}, block.normal, {
+  html: edit(
+    '^ *(?:comment *(?:\\n|\\s*$)'
+    + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag
+    + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))')
+    .replace('comment', block._comment)
+    .replace(/tag/g, '(?!(?:'
+      + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'
+      + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'
+      + '\\b)\\w+(?!:|[^\\w\\s@]*@)\\b')
+    .getRegex(),
+  def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/,
+  heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/,
+  fences: noopTest, // fences not supported
+  paragraph: edit(block.normal._paragraph)
+    .replace('hr', block.hr)
+    .replace('heading', ' *#{1,6} *[^\n]')
+    .replace('lheading', block.lheading)
+    .replace('blockquote', ' {0,3}>')
+    .replace('|fences', '')
+    .replace('|list', '')
+    .replace('|html', '')
+    .getRegex()
+});
 
-      var out;
+/**
+ * Inline-Level Grammar
+ */
+const inline = {
+  escape: /^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/,
+  autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
+  url: noopTest,
+  tag: '^comment'
+    + '|^</[a-zA-Z][\\w:-]*\\s*>' // self-closing tag
+    + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag
+    + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. <?php ?>
+    + '|^<![a-zA-Z]+\\s[\\s\\S]*?>' // declaration, e.g. <!DOCTYPE html>
+    + '|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>', // CDATA section
+  link: /^!?\[(label)\]\(\s*(href)(?:\s+(title))?\s*\)/,
+  reflink: /^!?\[(label)\]\[(?!\s*\])((?:\\[\[\]]?|[^\[\]\\])+)\]/,
+  nolink: /^!?\[(?!\s*\])((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\](?:\[\])?/,
+  strong: /^__([^\s_])__(?!_)|^\*\*([^\s*])\*\*(?!\*)|^__([^\s][\s\S]*?[^\s])__(?!_)|^\*\*([^\s][\s\S]*?[^\s])\*\*(?!\*)/,
+  em: /^_([^\s_])_(?!_)|^\*([^\s*<\[])\*(?!\*)|^_([^\s<][\s\S]*?[^\s_])_(?!_|[^\spunctuation])|^_([^\s_<][\s\S]*?[^\s])_(?!_|[^\spunctuation])|^\*([^\s<"][\s\S]*?[^\s\*])\*(?!\*|[^\spunctuation])|^\*([^\s*"<\[][\s\S]*?[^\s])\*(?!\*)/,
+  code: /^(`+)([^`]|[^`][\s\S]*?[^`])\1(?!`)/,
+  br: /^( {2,}|\\)\n(?!\s*$)/,
+  del: noopTest,
+  text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*]|\b_|$)|[^ ](?= {2,}\n))|(?= {2,}\n))/
+};
 
-      try {
-        out = Parser.parse(tokens, opt);
-      } catch (e) {
-        err = e;
-      }
+// list of punctuation marks from common mark spec
+// without ` and ] to workaround Rule 17 (inline code blocks/links)
+inline._punctuation = '!"#$%&\'()*+,\\-./:;<=>?@\\[^_{|}~';
+inline.em = edit(inline.em).replace(/punctuation/g, inline._punctuation).getRegex();
 
-      opt.highlight = highlight;
+inline._escapes = /\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g;
 
-      return err
-        ? callback(err)
-        : callback(null, out);
-    };
+inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
+inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;
+inline.autolink = edit(inline.autolink)
+  .replace('scheme', inline._scheme)
+  .replace('email', inline._email)
+  .getRegex();
 
-    if (!highlight || highlight.length < 3) {
-      return done();
-    }
+inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/;
 
-    delete opt.highlight;
+inline.tag = edit(inline.tag)
+  .replace('comment', block._comment)
+  .replace('attribute', inline._attribute)
+  .getRegex();
 
-    if (!pending) return done();
+inline._label = /(?:\[[^\[\]]*\]|\\.|`[^`]*`|[^\[\]\\`])*?/;
+inline._href = /<(?:\\[<>]?|[^\s<>\\])*>|[^\s\x00-\x1f]*/;
+inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/;
 
-    for (; i < tokens.length; i++) {
-      (function(token) {
-        if (token.type !== 'code') {
-          return --pending || done();
-        }
-        return highlight(token.text, token.lang, function(err, code) {
-          if (err) return done(err);
-          if (code == null || code === token.text) {
-            return --pending || done();
-          }
-          token.text = code;
-          token.escaped = true;
-          --pending || done();
-        });
-      })(tokens[i]);
-    }
+inline.link = edit(inline.link)
+  .replace('label', inline._label)
+  .replace('href', inline._href)
+  .replace('title', inline._title)
+  .getRegex();
 
-    return;
-  }
-  try {
-    if (opt) opt = merge({}, marked.defaults, opt);
-    checkSanitizeDeprecation(opt);
-    return Parser.parse(Lexer.lex(src, opt), opt);
-  } catch (e) {
-    e.message += '\nPlease report this to https://github.com/markedjs/marked.';
-    if ((opt || marked.defaults).silent) {
-      return '<p>An error occurred:</p><pre>'
-        + escape(e.message + '', true)
-        + '</pre>';
-    }
-    throw e;
-  }
-}
+inline.reflink = edit(inline.reflink)
+  .replace('label', inline._label)
+  .getRegex();
 
 /**
- * Options
+ * Normal Inline Grammar
  */
 
-marked.options =
-marked.setOptions = function(opt) {
-  merge(marked.defaults, opt);
-  return marked;
-};
-
-marked.getDefaults = function() {
-  return {
-    baseUrl: null,
-    breaks: false,
-    gfm: true,
-    headerIds: true,
-    headerPrefix: '',
-    highlight: null,
-    langPrefix: 'language-',
-    mangle: true,
-    pedantic: false,
-    renderer: new Renderer(),
-    sanitize: false,
-    sanitizer: null,
-    silent: false,
-    smartLists: false,
-    smartypants: false,
-    xhtml: false
-  };
-};
-
-marked.defaults = marked.getDefaults();
+inline.normal = merge({}, inline);
 
 /**
- * Expose
+ * Pedantic Inline Grammar
  */
 
-marked.Parser = Parser;
-marked.parser = Parser.parse;
-
-marked.Renderer = Renderer;
-marked.TextRenderer = TextRenderer;
+inline.pedantic = merge({}, inline.normal, {
+  strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
+  em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/,
+  link: edit(/^!?\[(label)\]\((.*?)\)/)
+    .replace('label', inline._label)
+    .getRegex(),
+  reflink: edit(/^!?\[(label)\]\s*\[([^\]]*)\]/)
+    .replace('label', inline._label)
+    .getRegex()
+});
 
-marked.Lexer = Lexer;
-marked.lexer = Lexer.lex;
+/**
+ * GFM Inline Grammar
+ */
 
-marked.InlineLexer = InlineLexer;
-marked.inlineLexer = InlineLexer.output;
+inline.gfm = merge({}, inline.normal, {
+  escape: edit(inline.escape).replace('])', '~|])').getRegex(),
+  _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,
+  url: /^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/,
+  _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
+  del: /^~+(?=\S)([\s\S]*?\S)~+/,
+  text: /^(`+|[^`])(?:[\s\S]*?(?:(?=[\\<!\[`*~]|\b_|https?:\/\/|ftp:\/\/|www\.|$)|[^ ](?= {2,}\n)|[^a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-](?=[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))|(?= {2,}\n|[a-zA-Z0-9.!#$%&'*+\/=?_`{\|}~-]+@))/
+});
 
-marked.Slugger = Slugger;
+inline.gfm.url = edit(inline.gfm.url, 'i')
+  .replace('email', inline.gfm._extended_email)
+  .getRegex();
+/**
+ * GFM + Line Breaks Inline Grammar
+ */
 
-marked.parse = marked;
+inline.breaks = merge({}, inline.gfm, {
+  br: edit(inline.br).replace('{2,}', '*').getRegex(),
+  text: edit(inline.gfm.text)
+    .replace('\\b_', '\\b_| {2,}\\n')
+    .replace(/\{2,\}/g, '*')
+    .getRegex()
+});
 
-if (true) {
-  module.exports = marked;
-} else {}
-})(this || (typeof window !== 'undefined' ? window : global));
+module.exports = {
+  block,
+  inline
+};
 
-/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))
 
 /***/ }),
 
@@ -15511,8 +15161,6 @@ var render = function() {
     _c("div", { staticClass: "container" }, [
       _vm._m(0),
       _vm._v(" "),
-      _vm._m(1),
-      _vm._v(" "),
       _c(
         "div",
         { staticClass: "form-group" },
@@ -15546,46 +15194,42 @@ var render = function() {
       ]),
       _vm._v(" "),
       _c("div", { staticClass: "form-group" }, [
-        _c("pre", [_vm._v(_vm._s(_vm.value))])
+        _c("pre", [_c("code", [_vm._v(_vm._s(_vm.value))])])
       ]),
       _vm._v(" "),
+      _vm._m(1),
+      _vm._v(" "),
       _c(
         "div",
         { staticClass: "form-group" },
-        [_c("markdown-editor", { attrs: { height: "auto" } })],
+        [
+          _c("markdown-editor", {
+            attrs: { toolbar: "bold italic upload", extend: _vm.custom }
+          })
+        ],
         1
       ),
       _vm._v(" "),
+      _vm._m(2),
+      _vm._v(" "),
       _c(
         "div",
         { staticClass: "form-group" },
-        [
-          _c("markdown-editor", {
-            attrs: {
-              height: "auto",
-              toolbar:
-                "bold italic heading | image link | numlist bullist code quote | preview fullscreen upload",
-              buttonClass: "btn btn-default",
-              extend: _vm.custom
-            }
-          })
-        ],
+        [_c("markdown-editor", { attrs: { theme: "success" } })],
         1
       ),
       _vm._v(" "),
+      _vm._m(3),
+      _vm._v(" "),
       _c(
         "div",
         { staticClass: "form-group" },
-        [
-          _c("markdown-editor", {
-            attrs: { buttonClass: "btn btn-sm btn-success" }
-          })
-        ],
+        [_c("markdown-editor", { attrs: { height: "auto", toolbar: "" } })],
         1
       )
     ]),
     _vm._v(" "),
-    _vm._m(2)
+    _vm._m(4)
   ])
 }
 var staticRenderFns = [
@@ -15603,11 +15247,31 @@ var staticRenderFns = [
     var _vm = this
     var _h = _vm.$createElement
     var _c = _vm._self._c || _h
-    return _c("div", { staticClass: "form-group" }, [
-      _c("h2", { staticClass: "text-center" }, [
-        _c("a", { attrs: { href: "https://morioh.com" } }, [
-          _vm._v("\bSocial Network for Developers")
-        ])
+    return _c("pre", [
+      _c("code", [
+        _vm._v(
+          '<markdown-editor toolbar="bold italic upload" :extend="custom"></markdown-editor>'
+        )
+      ])
+    ])
+  },
+  function() {
+    var _vm = this
+    var _h = _vm.$createElement
+    var _c = _vm._self._c || _h
+    return _c("pre", [
+      _c("code", [
+        _vm._v('<markdown-editor theme="success"></markdown-editor>')
+      ])
+    ])
+  },
+  function() {
+    var _vm = this
+    var _h = _vm.$createElement
+    var _c = _vm._self._c || _h
+    return _c("pre", [
+      _c("code", [
+        _vm._v("<markdown-editor height=\"auto\" toolbar=''></markdown-editor>")
       ])
     ])
   },
@@ -15631,33 +15295,20 @@ var staticRenderFns = [
       ]),
       _vm._v(" "),
       _c("p", [
-        _vm._v("Developed under the "),
+        _vm._v("Themed by "),
         _c(
           "a",
           {
-            attrs: {
-              href: "https://opensource.org/licenses/MIT",
-              target: "_blank"
-            }
+            attrs: { href: "http://on.morioh.net/96d5d36367", target: "_blank" }
           },
-          [_vm._v("MIT License")]
+          [_vm._v("Morioh Theme")]
         ),
         _c("br"),
-        _vm._v("\n            Made Love by Nasa8x"),
-        _c("br"),
-        _vm._v(" "),
-        _c("strong", [_vm._v("Donate")]),
-        _c("br"),
-        _vm._v(" "),
-        _c(
-          "a",
-          { attrs: { href: "http://vrl.to/ec5cfbae", target: "_blank" } },
-          [_c("img", { attrs: { src: "https://i.imgur.com/z0p6RvA.png" } })]
-        ),
+        _vm._v("\n            Made Love by "),
         _c(
           "a",
-          { attrs: { href: "http://vrl.to/ec5cfbae", target: "_blank" } },
-          [_c("img", { attrs: { src: "https://i.imgur.com/bEUNBGz.png" } })]
+          { attrs: { href: "https://morioh.com/@5c22e47440738156a7078a19" } },
+          [_vm._v("Nasa8x")]
         )
       ])
     ])
@@ -15752,7 +15403,7 @@ function normalizeComponent (
       // for template-only hot-reload because in that case the render fn doesn't
       // go through the normalizer
       options._injectStyles = hook
-      // register for functioal component in vue file
+      // register for functional component in vue file
       var originalRender = options.render
       options.render = function renderWithStyleInjection (h, context) {
         hook.call(context)
@@ -15774,37 +15425,6 @@ function normalizeComponent (
 }
 
 
-/***/ }),
-
-/***/ "./node_modules/webpack/buildin/global.js":
-/*!***********************************!*\
-  !*** (webpack)/buildin/global.js ***!
-  \***********************************/
-/*! no static exports found */
-/***/ (function(module, exports) {
-
-var g;
-
-// This works in non-strict mode
-g = (function() {
-	return this;
-})();
-
-try {
-	// This works if eval is allowed (see CSP)
-	g = g || new Function("return this")();
-} catch (e) {
-	// This works if the window reference is available
-	if (typeof window === "object") g = window;
-}
-
-// g can still be undefined, but nothing to do about it...
-// We return undefined, instead of nothing here, so it's
-// easier to handle this case. if(!global) { ...}
-
-module.exports = g;
-
-
 /***/ }),
 
 /***/ "./node_modules/webpack/buildin/module.js":
@@ -15851,8 +15471,8 @@ module.exports = function(module) {
 __webpack_require__.r(__webpack_exports__);
 /* harmony import */ var _layout_css__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./layout.css */ "./www/layout.css");
 /* harmony import */ var _layout_css__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_layout_css__WEBPACK_IMPORTED_MODULE_0__);
-/* harmony import */ var _dist_v_markdown_editor_css__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../dist/v-markdown-editor.css */ "./dist/v-markdown-editor.css");
-/* harmony import */ var _dist_v_markdown_editor_css__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_dist_v_markdown_editor_css__WEBPACK_IMPORTED_MODULE_1__);
+/* harmony import */ var _dist_v_markdown_editor_css__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ../dist/v-markdown-editor.css */ "./dist/v-markdown-editor.css");
+/* harmony import */ var _dist_v_markdown_editor_css__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(_dist_v_markdown_editor_css__WEBPACK_IMPORTED_MODULE_5__);
 /* harmony import */ var vue__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! vue */ "vue");
 /* harmony import */ var vue__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(vue__WEBPACK_IMPORTED_MODULE_2__);
 /* harmony import */ var _app_vue__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./app.vue */ "./www/app.vue");
diff --git a/dist/www/js/app.js.map b/dist/www/js/app.js.map
index 56c0f31..1d53915 100644
--- a/dist/www/js/app.js.map
+++ b/dist/www/js/app.js.map
@@ -1 +1 @@
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import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! codemirror/lib/codemirror.css */ \"codemirror/lib/codemirror.css\");\n/* harmony import */ var codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(codemirror_lib_codemirror_css__WEBPACK_IMPORTED_MODULE_0__);\n/* harmony import */ var _index_css__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./index.css */ \"./src/index.css\");\n/* harmony import */ var _index_css__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_index_css__WEBPACK_IMPORTED_MODULE_1__);\n/* harmony import */ var markdownparser__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! markdownparser */ \"markdownparser\");\n/* harmony import */ var markdownparser__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(markdownparser__WEBPACK_IMPORTED_MODULE_2__);\n/* harmony import */ var marked__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! marked */ \"marked\");\n/* harmony import */ var marked__WEBPACK_IMPORTED_MODULE_3___default = /*#__PURE__*/__webpack_require__.n(marked__WEBPACK_IMPORTED_MODULE_3__);\n/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! codemirror */ \"codemirror\");\n/* harmony import */ var codemirror__WEBPACK_IMPORTED_MODULE_4___default = /*#__PURE__*/__webpack_require__.n(codemirror__WEBPACK_IMPORTED_MODULE_4__);\n/* harmony import */ var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! codemirror/addon/display/fullscreen.js */ \"codemirror/addon/display/fullscreen.js\");\n/* harmony import */ var codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_fullscreen_js__WEBPACK_IMPORTED_MODULE_5__);\n/* harmony import */ var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! codemirror/mode/markdown/markdown.js */ \"codemirror/mode/markdown/markdown.js\");\n/* harmony import */ var codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6___default = /*#__PURE__*/__webpack_require__.n(codemirror_mode_markdown_markdown_js__WEBPACK_IMPORTED_MODULE_6__);\n/* harmony import */ var codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! codemirror/mode/gfm/gfm.js */ \"codemirror/mode/gfm/gfm.js\");\n/* harmony import */ var codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7___default = /*#__PURE__*/__webpack_require__.n(codemirror_mode_gfm_gfm_js__WEBPACK_IMPORTED_MODULE_7__);\n/* harmony import */ var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! codemirror/addon/display/placeholder.js */ \"codemirror/addon/display/placeholder.js\");\n/* harmony import */ var codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_display_placeholder_js__WEBPACK_IMPORTED_MODULE_8__);\n/* harmony import */ var codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! codemirror/addon/selection/active-line.js */ \"codemirror/addon/selection/active-line.js\");\n/* harmony import */ var codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9___default = /*#__PURE__*/__webpack_require__.n(codemirror_addon_selection_active_line_js__WEBPACK_IMPORTED_MODULE_9__);\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n//\n\n\n\n\n\n\n\n\n\n\n/* harmony default export */ __webpack_exports__[\"default\"] = ({\n  props: {\n    css: {\n      type: String\n    },\n    width: {\n      type: String,\n      \"default\": '100%'\n    },\n    height: {\n      type: String,\n      \"default\": '300px'\n    },\n    toolbar: {\n      type: String,\n      \"default\": 'clean redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen'\n    },\n    extend: {\n      type: Object\n    },\n    buttons: {\n      type: Object,\n      \"default\": function _default() {\n        return {\n          'bold': {\n            title: 'Bold',\n            className: 'far fa-bold',\n            cmd: 'bold',\n            hotkey: 'Ctrl-B'\n          },\n          'italic': {\n            title: 'Italic',\n            className: \"far fa-italic\",\n            cmd: 'italic',\n            hotkey: 'Ctrl-I'\n          },\n          \"strikethrough\": {\n            cmd: \"strikethrough\",\n            className: \"far fa-strikethrough\",\n            title: \"Strikethrough\"\n          },\n          'heading': {\n            title: 'Heading',\n            className: \"far fa-heading\",\n            cmd: 'heading',\n            hotkey: 'Ctrl-H'\n          },\n          'code': {\n            title: 'Code',\n            className: \"far fa-code\",\n            cmd: 'code',\n            hotkey: 'Ctrl-X'\n          },\n          'quote': {\n            title: 'Quote',\n            className: \"far fa-quote-left\",\n            cmd: 'quote',\n            hotkey: 'Ctrl-Q'\n          },\n          'link': {\n            title: 'Link',\n            className: \"far fa-link\",\n            cmd: 'link',\n            hotkey: 'Ctrl-K'\n          },\n          'image': {\n            title: 'Image',\n            className: \"far fa-image\",\n            cmd: 'image',\n            hotkey: 'Ctrl-P'\n          },\n          \"fullscreen\": {\n            cmd: \"fullscreen\",\n            className: \"far fa-arrows-alt no-disable no-mobile\",\n            title: \"Toggle Fullscreen\",\n            hotkey: 'F11',\n            ready: true\n          },\n          \"preview\": {\n            cmd: \"preview\",\n            className: \"far fa-eye no-disable\",\n            title: \"Toggle Preview\",\n            hotkey: 'Ctrl-P',\n            ready: true\n          },\n          \"clipboard\": {\n            cmd: \"clipboard\",\n            className: \"far fa-clipboard\",\n            title: \"Copy & Markdown Format\",\n            hotkey: 'Ctrl-V'\n          },\n          \"clean\": {\n            cmd: \"clean\",\n            className: \"far fa-remove-format\",\n            title: \"Html to markdown\"\n          },\n          \"undo\": {\n            cmd: \"undo\",\n            className: \"far fa-undo\",\n            title: \"Undo\",\n            hotkey: 'Ctrl-Z'\n          },\n          \"redo\": {\n            cmd: \"redo\",\n            className: \"far fa-repeat\",\n            title: \"Redo\",\n            hotkey: 'Ctrl-Y'\n          },\n          \"bullist\": {\n            cmd: \"bullist\",\n            className: \"far fa-list-ul\",\n            title: \"Generic List\"\n          },\n          \"numlist\": {\n            cmd: \"numlist\",\n            className: \"far fa-list-ol\",\n            title: \"Numbered List\"\n          }\n        };\n      }\n    },\n    name: {\n      type: String,\n      \"default\": 'html'\n    },\n    value: {\n      type: String,\n      \"default\": '',\n      required: false\n    },\n    buttonClass: {\n      type: String,\n      \"default\": 'btn btn-outline-secondary'\n    },\n    options: {\n      type: Object,\n      \"default\": function _default() {\n        return {\n          mode: 'gfm',\n          theme: \"elegent\",\n          lineNumbers: false,\n          styleActiveLine: false,\n          styleSelectedText: true,\n          lineWrapping: true,\n          indentWithTabs: true,\n          autoRefresh: true,\n          tabSize: 2,\n          indentUnit: 2\n        };\n      }\n    }\n  },\n  data: function data() {\n    return {\n      id: 'v-md-editor-' + new Date().getTime(),\n      editor: null,\n      preview: false,\n      html: '',\n      toolbars: [],\n      shortcuts: {}\n    };\n  },\n  watch: {\n    value: function value(val) {\n      if (val != this.editor.getValue()) {\n        this.editor.setValue(val);\n      }\n    }\n  },\n  computed: {\n    styles: function styles() {\n      return {\n        width: isNaN(this.width) ? this.width : this.width + '%',\n        height: isNaN(this.height) ? this.height : this.height + '%'\n      };\n    }\n  },\n  methods: {\n    isEmpty: function isEmpty(s) {\n      return s === null || s === undefined ? true : /^[\\s\\xa0]*$/.test(s);\n    },\n    isUrl: function isUrl(s) {\n      return this.isEmpty(s) ? false : s.match(/((http(s)?):\\/\\/[\\w\\.\\/\\-=?#]+)/gi);\n    },\n    format: function format() {\n      var a = arguments[0];\n\n      for (var i = 1; i <= arguments.length; i++) {\n        a = a.replace(/%[a-z]/, arguments[i]);\n      }\n\n      return a; // Make chainable\n    },\n    uid: function uid(name) {\n      return this.format('%s-%s', this.id, name);\n    },\n    obj: function obj(name) {\n      return jQuery('#' + this.uid(name));\n    },\n    _toggleBlock: function _toggleBlock(type, start, end) {\n      end = this.isEmpty(end) ? start : end;\n      var ed = this.editor;\n      var startPoint = ed.getCursor(\"start\");\n      var endPoint = ed.getCursor(\"end\");\n      var text;\n      var stat = this.state();\n\n      if (stat[type]) {\n        text = ed.getLine(startPoint.line);\n        start = text.slice(0, startPoint.ch);\n        end = text.slice(startPoint.ch);\n\n        if (type == \"bold\") {\n          start = start.replace(/(\\*\\*|__)(?![\\s\\S]*(\\*\\*|__))/, \"\");\n          end = end.replace(/(\\*\\*|__)/, \"\");\n        } else if (type == \"italic\") {\n          start = start.replace(/(\\*|_)(?![\\s\\S]*(\\*|_))/, \"\");\n          end = end.replace(/(\\*|_)/, \"\");\n        } else if (type == \"strikethrough\") {\n          start = start.replace(/(\\*\\*|~~)(?![\\s\\S]*(\\*\\*|~~))/, \"\");\n          end = end.replace(/(\\*\\*|~~)/, \"\");\n        }\n\n        ed.replaceRange(start + end, {\n          line: startPoint.line,\n          ch: 0\n        }, {\n          line: startPoint.line,\n          ch: 99999999999999\n        });\n\n        if (type == \"bold\" || type == \"strikethrough\") {\n          startPoint.ch -= 2;\n\n          if (startPoint !== endPoint) {\n            endPoint.ch -= 2;\n          }\n        } else if (type == \"italic\") {\n          startPoint.ch -= 1;\n\n          if (startPoint !== endPoint) {\n            endPoint.ch -= 1;\n          }\n        }\n      } else {\n        text = ed.getSelection();\n\n        if (type == \"bold\") {\n          text = text.split(\"**\").join(\"\");\n          text = text.split(\"__\").join(\"\");\n        } else if (type == \"italic\") {\n          text = text.split(\"*\").join(\"\");\n          text = text.split(\"_\").join(\"\");\n        } else if (type == \"strikethrough\") {\n          text = text.split(\"~~\").join(\"\");\n        }\n\n        ed.replaceSelection(start + text + end);\n        startPoint.ch += start.length;\n        endPoint.ch = startPoint.ch + text.length;\n      }\n\n      ed.setSelection(startPoint, endPoint);\n    },\n    _toggleLine: function _toggleLine(name) {\n      var ed = this.editor;\n      var stat = this.state();\n      var startPoint = ed.getCursor(\"start\");\n      var endPoint = ed.getCursor(\"end\");\n      var repl = {\n        \"quote\": /^(\\s*)\\>\\s+/,\n        \"bullist\": /^(\\s*)(\\*|\\-|\\+)\\s+/,\n        \"numlist\": /^(\\s*)\\d+\\.\\s+/\n      };\n      var map = {\n        \"quote\": \"> \",\n        \"bullist\": \"* \",\n        \"numlist\": \"1. \"\n      };\n\n      for (var i = startPoint.line; i <= endPoint.line; i++) {\n        (function (i) {\n          var text = ed.getLine(i);\n\n          if (stat[name]) {\n            text = text.replace(repl[name], \"$1\");\n          } else {\n            text = map[name] + text;\n          }\n\n          ed.replaceRange(text, {\n            line: i,\n            ch: 0\n          }, {\n            line: i,\n            ch: 99999999999999\n          });\n        })(i);\n      }\n    },\n    state: function state(pos) {\n      pos = pos || this.editor.getCursor(\"start\");\n      var stat = this.editor.getTokenAt(pos);\n      if (!stat.type) return {};\n      var types = stat.type.split(\" \"); // console.log(types);\n\n      var ret = {},\n          data,\n          text;\n\n      for (var i = 0; i < types.length; i++) {\n        data = types[i];\n\n        if (data === \"strong\") {\n          ret.bold = true;\n        } else if (data === \"variable-2\") {\n          text = this.editor.getLine(pos.line);\n\n          if (/^\\s*\\d+\\.\\s/.test(text)) {\n            ret[\"numlist\"] = true;\n          } else {\n            ret[\"bullist\"] = true;\n          }\n        } else if (data === \"atom\") {\n          ret.quote = true;\n        } else if (data === \"em\") {\n          ret.italic = true;\n        } else if (data === \"quote\") {\n          ret.quote = true;\n        } else if (data === \"strikethrough\") {\n          ret.strikethrough = true;\n        } else if (data === \"comment\") {\n          ret.code = true;\n        } else if (data === \"link\" || data === \"url\") {\n          ret.link = true;\n        } else if (data === \"image\") {\n          ret.image = true;\n        } else if (data.match(/^header(\\-[1-6])?$/)) {\n          ret[data.replace(\"header\", \"heading\")] = true;\n        }\n      }\n\n      return ret;\n    },\n    _replaceSelection: function _replaceSelection(active, startEnd, val) {\n      var ed = this.editor;\n      var text;\n      var start = startEnd[0];\n      var end = startEnd[1];\n      var startPoint = ed.getCursor(\"start\");\n      var endPoint = ed.getCursor(\"end\");\n\n      if (val) {\n        Object.keys(val).forEach(function (key) {\n          start = start.replace('#' + key + '#', val[key]);\n          end = end.replace('#' + key + '#', val[key]);\n        });\n      }\n\n      if (active) {\n        text = ed.getLine(startPoint.line);\n        start = text.slice(0, startPoint.ch);\n        end = text.slice(startPoint.ch);\n        ed.replaceRange(start + end, {\n          line: startPoint.line,\n          ch: 0\n        });\n      } else {\n        // text = ed.getSelection();\n        // ed.replaceSelection(start + text + end);\n        ed.replaceSelection(start + end);\n        startPoint.ch += start.length;\n\n        if (startPoint !== endPoint) {\n          endPoint.ch += start.length;\n        }\n      }\n\n      ed.setSelection(startPoint, endPoint);\n      ed.focus();\n    },\n    drawImage: function drawImage(obj) {\n      var stat = this.state();\n\n      this._replaceSelection(stat.image, [\"![#title#](\", '#url# \"#title#\")'], obj);\n    },\n    drawLink: function drawLink(obj) {\n      var stat = this.state();\n\n      this._replaceSelection(stat.link, ['[#title#]', '(#url# \"#title#\")'], obj);\n    },\n    command: function command(key) {\n      var ed = this.editor;\n      var text = ed.getSelection();\n      var stat = this.state();\n      this.$root.$emit('markdown-editor:' + key, this);\n\n      switch (key) {\n        case 'undo':\n          ed.undo();\n          break;\n\n        case 'redo':\n          ed.redo();\n          break;\n\n        case 'bold':\n          this._toggleBlock('bold', '**');\n\n          break;\n\n        case 'italic':\n          this._toggleBlock('italic', '*');\n\n          break;\n\n        case 'strikethrough':\n          this._toggleBlock('strikethrough', '~~');\n\n          break;\n\n        case 'code':\n          this._toggleBlock('code', '```');\n\n          break;\n\n        case 'heading':\n          ed.replaceSelection('\\n### ' + text);\n          break;\n\n        case 'clipboard':\n          this.obj('modal-clipboard').modal('show');\n          break;\n\n        case 'image':\n          // this.obj('modal-image').modal('show');\n          var url = prompt(\"Please enter image url\", \"https://\");\n\n          if (this.isUrl(url)) {\n            var title = !this.isEmpty(text) ? text : \"This is image title\";\n            this.drawImage({\n              title: title,\n              url: url\n            });\n          }\n\n          break;\n\n        case 'link':\n          //this.obj('modal-link').modal('show');\n          var url = prompt(\"Please enter link\", \"https://\");\n\n          if (this.isUrl(url)) {\n            var title = !this.isEmpty(text) ? text : url;\n            this.drawLink({\n              title: title,\n              url: url\n            });\n          }\n\n          break;\n\n        case 'quote':\n          this._toggleLine('quote');\n\n          break;\n\n        case 'quote':\n          this._toggleLine('quote');\n\n          break;\n\n        case 'numlist':\n          this._toggleLine('numlist');\n\n          break;\n\n        case 'bullist':\n          this._toggleLine('bullist');\n\n          break;\n\n        case 'preview':\n          ///var md = new MarkdownIt({ typographer: true, breaks: true, quotes: '“”‘’' });\n          this.html = marked__WEBPACK_IMPORTED_MODULE_3___default()(ed.getValue(), {\n            breaks: true\n          });\n          this.preview ^= true;\n          this.obj('toolbar').find('.btn:not(\".ready\")').prop('disabled', this.preview);\n          break;\n\n        case 'fullscreen':\n          this.obj('container').toggleClass('v-md-fullscreen');\n          this.obj('fullscreen').toggleClass('active');\n          ed.setOption(\"fullScreen\", !ed.getOption(\"fullScreen\"));\n          break;\n\n        case 'clean':\n          text = markdownparser__WEBPACK_IMPORTED_MODULE_2___default.a.parse(text);\n          ed.replaceSelection(text);\n          break;\n      }\n\n      ed.focus();\n    },\n    build: function build() {\n      if (!jQuery) {\n        console.error(\"Must required jQuery!\");\n        return;\n      }\n\n      if (this.isEmpty(this.toolbar)) {\n        console.error(\"You must set toolbar!\");\n        return;\n      }\n\n      if (this.__rendered) return;\n\n      var _t = this;\n\n      this.buttons = Object.assign(this.buttons, this.extend);\n\n      var btns = _t.toolbar.toLowerCase().split(/(\\s)/).filter(function (w) {\n        return !_t.isEmpty(w);\n      });\n\n      var group = [];\n\n      for (var i = 0; i < btns.length; i++) {\n        var btn = btns[i];\n        var obj = _t.buttons[btn];\n\n        if (obj) {\n          // obj.cmd = typeof obj.cmd ==='function'? obj.cmd: this.command(obj.cmd);\n          obj.id = btn;\n          group.push(obj);\n        }\n\n        if (btn === '|' || i == btns.length - 1) {\n          this.toolbars.push(group);\n          group = [];\n        }\n      }\n\n      var o = Object.assign({}, {\n        extraKeys: _t.shortcuts,\n        initialValue: _t.value\n      }, _t.options);\n      var el = document.getElementById(_t.id + '-input');\n      _t.editor = codemirror__WEBPACK_IMPORTED_MODULE_4___default.a.fromTextArea(el, o);\n\n      _t.editor.on(\"change\", function (ed) {\n        //_t.editor.save();                    \n        _t.$emit('input', ed.getValue()); //_t.value = ed.getValue();\n\n      });\n\n      _t.editor.on(\"cursorActivity\", function () {\n        var stat = _t.state();\n\n        _t.obj('toolbar').find('.btn.active:not(.ready)').removeClass('active');\n\n        Object.keys(stat).forEach(function (key) {\n          _t.obj(key).addClass('active');\n        });\n      });\n\n      _t.__rendered = true;\n    }\n  },\n  mounted: function mounted() {\n    var _this = this;\n\n    this.$nextTick(function () {\n      _this.build();\n    });\n  },\n  destroyed: function destroyed() {\n    this.editor = null;\n  }\n});\n\n/***/ }),\n\n/***/ \"./node_modules/vue-loader/lib/loaders/templateLoader.js?!./node_modules/vue-loader/lib/index.js?!./src/editor.vue?vue&type=template&id=7c83f806&\":\n/*!*************************************************************************************************************************************************************************************!*\\\n  !*** ./node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/vue-loader/lib??vue-loader-options!./src/editor.vue?vue&type=template&id=7c83f806& ***!\n  \\*************************************************************************************************************************************************************************************/\n/*! exports provided: render, staticRenderFns */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"render\", function() { return render; });\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"staticRenderFns\", function() { return staticRenderFns; });\nvar render = function() {\n  var _vm = this\n  var _h = _vm.$createElement\n  var _c = _vm._self._c || _h\n  return _c(\n    \"div\",\n    {\n      class: [\n        \"v-md-container\",\n        _vm.css,\n        { \"v-md-auto-resize\": _vm.height == \"auto\" }\n      ],\n      attrs: { id: _vm.uid(\"container\") }\n    },\n    [\n      _c(\n        \"div\",\n        { staticClass: \"v-md-toolbar\", attrs: { id: _vm.uid(\"toolbar\") } },\n        _vm._l(_vm.toolbars, function(group) {\n          return _c(\n            \"div\",\n            { staticClass: \"btn-group mr-3\", attrs: { role: \"group\" } },\n            _vm._l(group, function(i) {\n              return _c(\n                \"button\",\n                {\n                  class: [_vm.buttonClass, { ready: i.ready }],\n                  attrs: { type: \"button\", id: _vm.uid(i.id), title: i.title },\n                  on: {\n                    click: function($event) {\n                      return _vm.command(i.cmd)\n                    }\n                  }\n                },\n                [\n                  _c(\"i\", {\n                    class: i.className,\n                    attrs: { \"aria-hidden\": \"true\" }\n                  })\n                ]\n              )\n            }),\n            0\n          )\n        }),\n        0\n      ),\n      _vm._v(\" \"),\n      _c(\"div\", { staticClass: \"v-md-wrapper\" }, [\n        _c(\"textarea\", {\n          directives: [\n            {\n              name: \"model\",\n              rawName: \"v-model\",\n              value: _vm.value,\n              expression: \"value\"\n            }\n          ],\n          style: _vm.styles,\n          attrs: { id: _vm.uid(\"input\"), name: _vm.name },\n          domProps: { value: _vm.value },\n          on: {\n            input: function($event) {\n              if ($event.target.composing) {\n                return\n              }\n              _vm.value = $event.target.value\n            }\n          }\n        }),\n        _vm._v(\" \"),\n        _vm.preview\n          ? _c(\"div\", {\n              staticClass: \"v-md-preview\",\n              attrs: { id: _vm.uid(\"html-preview\") },\n              domProps: { innerHTML: _vm._s(_vm.html) }\n            })\n          : _vm._e()\n      ])\n    ]\n  )\n}\nvar staticRenderFns = []\nrender._withStripped = true\n\n\n\n/***/ }),\n\n/***/ \"./node_modules/vue-loader/lib/runtime/componentNormalizer.js\":\n/*!********************************************************************!*\\\n  !*** ./node_modules/vue-loader/lib/runtime/componentNormalizer.js ***!\n  \\********************************************************************/\n/*! exports provided: default */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"default\", function() { return normalizeComponent; });\n/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nfunction normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functioal component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? [].concat(existing, hook)\n        : [hook]\n    }\n  }\n\n  return {\n    exports: scriptExports,\n    options: options\n  }\n}\n\n\n/***/ }),\n\n/***/ \"./src/editor.vue\":\n/*!************************!*\\\n  !*** ./src/editor.vue ***!\n  \\************************/\n/*! exports provided: default */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony import */ var _editor_vue_vue_type_template_id_7c83f806___WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./editor.vue?vue&type=template&id=7c83f806& */ \"./src/editor.vue?vue&type=template&id=7c83f806&\");\n/* harmony import */ var _editor_vue_vue_type_script_lang_js___WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./editor.vue?vue&type=script&lang=js& */ \"./src/editor.vue?vue&type=script&lang=js&\");\n/* empty/unused harmony star reexport *//* harmony import */ var _node_modules_vue_loader_lib_runtime_componentNormalizer_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../node_modules/vue-loader/lib/runtime/componentNormalizer.js */ \"./node_modules/vue-loader/lib/runtime/componentNormalizer.js\");\n\n\n\n\n\n/* normalize component */\n\nvar component = Object(_node_modules_vue_loader_lib_runtime_componentNormalizer_js__WEBPACK_IMPORTED_MODULE_2__[\"default\"])(\n  _editor_vue_vue_type_script_lang_js___WEBPACK_IMPORTED_MODULE_1__[\"default\"],\n  _editor_vue_vue_type_template_id_7c83f806___WEBPACK_IMPORTED_MODULE_0__[\"render\"],\n  _editor_vue_vue_type_template_id_7c83f806___WEBPACK_IMPORTED_MODULE_0__[\"staticRenderFns\"],\n  false,\n  null,\n  null,\n  null\n  \n)\n\n/* hot reload */\nif (false) { var api; }\ncomponent.options.__file = \"src/editor.vue\"\n/* harmony default export */ __webpack_exports__[\"default\"] = (component.exports);\n\n/***/ }),\n\n/***/ \"./src/editor.vue?vue&type=script&lang=js&\":\n/*!*************************************************!*\\\n  !*** ./src/editor.vue?vue&type=script&lang=js& ***!\n  \\*************************************************/\n/*! exports provided: default */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony import */ var _node_modules_babel_loader_lib_index_js_node_modules_vue_loader_lib_index_js_vue_loader_options_editor_vue_vue_type_script_lang_js___WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! -!../node_modules/babel-loader/lib!../node_modules/vue-loader/lib??vue-loader-options!./editor.vue?vue&type=script&lang=js& */ \"./node_modules/babel-loader/lib/index.js!./node_modules/vue-loader/lib/index.js?!./src/editor.vue?vue&type=script&lang=js&\");\n/* empty/unused harmony star reexport */ /* harmony default export */ __webpack_exports__[\"default\"] = (_node_modules_babel_loader_lib_index_js_node_modules_vue_loader_lib_index_js_vue_loader_options_editor_vue_vue_type_script_lang_js___WEBPACK_IMPORTED_MODULE_0__[\"default\"]); \n\n/***/ }),\n\n/***/ \"./src/editor.vue?vue&type=template&id=7c83f806&\":\n/*!*******************************************************!*\\\n  !*** ./src/editor.vue?vue&type=template&id=7c83f806& ***!\n  \\*******************************************************/\n/*! exports provided: render, staticRenderFns */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony import */ var _node_modules_vue_loader_lib_loaders_templateLoader_js_vue_loader_options_node_modules_vue_loader_lib_index_js_vue_loader_options_editor_vue_vue_type_template_id_7c83f806___WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! -!../node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!../node_modules/vue-loader/lib??vue-loader-options!./editor.vue?vue&type=template&id=7c83f806& */ \"./node_modules/vue-loader/lib/loaders/templateLoader.js?!./node_modules/vue-loader/lib/index.js?!./src/editor.vue?vue&type=template&id=7c83f806&\");\n/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, \"render\", function() { return _node_modules_vue_loader_lib_loaders_templateLoader_js_vue_loader_options_node_modules_vue_loader_lib_index_js_vue_loader_options_editor_vue_vue_type_template_id_7c83f806___WEBPACK_IMPORTED_MODULE_0__[\"render\"]; });\n\n/* harmony reexport (safe) */ __webpack_require__.d(__webpack_exports__, \"staticRenderFns\", function() { return _node_modules_vue_loader_lib_loaders_templateLoader_js_vue_loader_options_node_modules_vue_loader_lib_index_js_vue_loader_options_editor_vue_vue_type_template_id_7c83f806___WEBPACK_IMPORTED_MODULE_0__[\"staticRenderFns\"]; });\n\n\n\n/***/ }),\n\n/***/ \"./src/index.css\":\n/*!***********************!*\\\n  !*** ./src/index.css ***!\n  \\***********************/\n/*! no static exports found */\n/***/ (function(module, exports, __webpack_require__) {\n\n// extracted by mini-css-extract-plugin\n\n/***/ }),\n\n/***/ \"./src/index.js\":\n/*!**********************!*\\\n  !*** ./src/index.js ***!\n  \\**********************/\n/*! exports provided: default */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony import */ var _editor_vue__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./editor.vue */ \"./src/editor.vue\");\n\nvar MarkdownEditor = {\n  install: function install(Vue) {\n    if (Vue.__md_editor_installed) {\n      return;\n    }\n\n    Vue.__md_editor_installed = true;\n    Vue.component('markdown-editor', _editor_vue__WEBPACK_IMPORTED_MODULE_0__[\"default\"]);\n  }\n};\n\nif (typeof window !== 'undefined' && window.Vue) {\n  Vue.use(MarkdownEditor);\n}\n\n/* harmony default export */ __webpack_exports__[\"default\"] = (MarkdownEditor); // if (typeof exports == \"object\") {\n//     module.exports = MarkdownEditor;\n// } else if (typeof define == \"function\" && define.amd) {\n//     define([], function () { return MarkdownEditor; })\n// } else if (window.Vue) {\n//     Vue.use(MarkdownEditor);\n// }\n\n/***/ }),\n\n/***/ \"codemirror\":\n/*!*****************************!*\\\n  !*** external \"codemirror\" ***!\n  \\*****************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"codemirror\");\n\n/***/ }),\n\n/***/ \"codemirror/addon/display/fullscreen.js\":\n/*!*********************************************************!*\\\n  !*** external \"codemirror/addon/display/fullscreen.js\" ***!\n  \\*********************************************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"codemirror/addon/display/fullscreen.js\");\n\n/***/ }),\n\n/***/ \"codemirror/addon/display/placeholder.js\":\n/*!**********************************************************!*\\\n  !*** external \"codemirror/addon/display/placeholder.js\" ***!\n  \\**********************************************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"codemirror/addon/display/placeholder.js\");\n\n/***/ }),\n\n/***/ \"codemirror/addon/selection/active-line.js\":\n/*!************************************************************!*\\\n  !*** external \"codemirror/addon/selection/active-line.js\" ***!\n  \\************************************************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"codemirror/addon/selection/active-line.js\");\n\n/***/ }),\n\n/***/ \"codemirror/lib/codemirror.css\":\n/*!************************************************!*\\\n  !*** external \"codemirror/lib/codemirror.css\" ***!\n  \\************************************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"codemirror/lib/codemirror.css\");\n\n/***/ }),\n\n/***/ \"codemirror/mode/gfm/gfm.js\":\n/*!*********************************************!*\\\n  !*** external \"codemirror/mode/gfm/gfm.js\" ***!\n  \\*********************************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"codemirror/mode/gfm/gfm.js\");\n\n/***/ }),\n\n/***/ \"codemirror/mode/markdown/markdown.js\":\n/*!*******************************************************!*\\\n  !*** external \"codemirror/mode/markdown/markdown.js\" ***!\n  \\*******************************************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"codemirror/mode/markdown/markdown.js\");\n\n/***/ }),\n\n/***/ \"markdownparser\":\n/*!*********************************!*\\\n  !*** external \"markdownparser\" ***!\n  \\*********************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"markdownparser\");\n\n/***/ }),\n\n/***/ \"marked\":\n/*!*************************!*\\\n  !*** external \"marked\" ***!\n  \\*************************/\n/*! no static exports found */\n/***/ (function(module, exports) {\n\nmodule.exports = require(\"marked\");\n\n/***/ })\n\n/******/ });\n});\n//# sourceMappingURL=index.js.map","// extracted by mini-css-extract-plugin","<template>\n    <div>\n        <div class=\"container\">\n\n            <header>\n                <h1>v-markdown-editor</h1>\n                <h4>Markdown Editor component for Vue.js</h4>\n            </header>\n\n            <div class=\"form-group\">\n                <h2 class=\"text-center\"><a href=\"https://morioh.com\">\bSocial Network for Developers</a></h2>\n            </div>\n\n\n            <div class=\"form-group\">\n                <markdown-editor ref=\"md\" v-model=\"value\"></markdown-editor>\n            </div>\n\n            <div class=\"form-group\">\n                <button @click=\"val\" class=\"btn btn-primary\">Change</button>\n                <button @click=\"replace\" class=\"btn btn-primary\">Handle</button>\n            </div>\n\n            <div class=\"form-group\">\n                <pre>{{value}}</pre>\n            </div>           \n\n\n\n            <div class=\"form-group\">\n                <markdown-editor height=\"auto\"></markdown-editor>\n            </div>\n\n            <div class=\"form-group\">\n                <markdown-editor height=\"auto\"\n                    toolbar=\"bold italic heading | image link | numlist bullist code quote | preview fullscreen upload\"\n                    buttonClass=\"btn btn-default\" :extend=\"custom\"></markdown-editor>\n            </div>\n\n\n            <div class=\"form-group\">\n                <markdown-editor buttonClass=\"btn btn-sm btn-success\"></markdown-editor>\n            </div>\n\n\n        </div>\n\n\n        <footer>\n\n            <p>\n                <a class=\"social-icon\" href=\"https://github.com/nasa8x/v-markdown-editor\" target=\"_blank\">\n                    <i class=\"fa-3x fab fa-github-square\"></i>\n                </a>\n\n            </p>\n\n            <p>Developed under the <a href=\"https://opensource.org/licenses/MIT\" target=\"_blank\">MIT License</a><br>\n                Made Love by Nasa8x<br>\n                <strong>Donate</strong><br>\n                <a href=\"http://vrl.to/ec5cfbae\" target=\"_blank\">\n                    <img src=\"https://i.imgur.com/z0p6RvA.png\"></a><a href=\"http://vrl.to/ec5cfbae\" target=\"_blank\"><img\n                        src=\"https://i.imgur.com/bEUNBGz.png\"></a>\n            </p>\n\n\n        </footer>\n\n    </div>\n</template>\n\n\n<script>\n\n    export default {\n        data() {\n            return {\n                value: 'Hello world',\n\n                custom: {\n                    'upload': {\n                        cmd: 'upload',\n                        className: 'fas fa-upload',\n                        title: 'Upload File'\n                    }\n                }\n            }\n        },\n\n        methods: {\n            val() {\n                this.value = \"jjkjlkjljlkjlkjlkjlkj\"\n            },\n\n\n\n            showModal() {\n\n                $('#modal').modal('show');\n\n            },\n\n            replace() {\n                this.$refs.md.editor.replaceSelection(\"Handle editor\");\n            }\n        },\n\n\n        created() {\n            this.$root.$on('markdown-editor:upload', function (md) {\n                md.drawImage({ url: 'https://i.imgur.com/CbCXhBe.png', title: 'this image title' });\n            });\n\n        }\n\n\n    }\n\n</script>","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n\n  CodeMirror.defineOption(\"fullScreen\", false, function(cm, val, old) {\n    if (old == CodeMirror.Init) old = false;\n    if (!old == !val) return;\n    if (val) setFullscreen(cm);\n    else setNormal(cm);\n  });\n\n  function setFullscreen(cm) {\n    var wrap = cm.getWrapperElement();\n    cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,\n                                  width: wrap.style.width, height: wrap.style.height};\n    wrap.style.width = \"\";\n    wrap.style.height = \"auto\";\n    wrap.className += \" CodeMirror-fullscreen\";\n    document.documentElement.style.overflow = \"hidden\";\n    cm.refresh();\n  }\n\n  function setNormal(cm) {\n    var wrap = cm.getWrapperElement();\n    wrap.className = wrap.className.replace(/\\s*CodeMirror-fullscreen\\b/, \"\");\n    document.documentElement.style.overflow = \"\";\n    var info = cm.state.fullScreenRestore;\n    wrap.style.width = info.width; wrap.style.height = info.height;\n    window.scrollTo(info.scrollLeft, info.scrollTop);\n    cm.refresh();\n  }\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  CodeMirror.defineOption(\"placeholder\", \"\", function(cm, val, old) {\n    var prev = old && old != CodeMirror.Init;\n    if (val && !prev) {\n      cm.on(\"blur\", onBlur);\n      cm.on(\"change\", onChange);\n      cm.on(\"swapDoc\", onChange);\n      onChange(cm);\n    } else if (!val && prev) {\n      cm.off(\"blur\", onBlur);\n      cm.off(\"change\", onChange);\n      cm.off(\"swapDoc\", onChange);\n      clearPlaceholder(cm);\n      var wrapper = cm.getWrapperElement();\n      wrapper.className = wrapper.className.replace(\" CodeMirror-empty\", \"\");\n    }\n\n    if (val && !cm.hasFocus()) onBlur(cm);\n  });\n\n  function clearPlaceholder(cm) {\n    if (cm.state.placeholder) {\n      cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);\n      cm.state.placeholder = null;\n    }\n  }\n  function setPlaceholder(cm) {\n    clearPlaceholder(cm);\n    var elt = cm.state.placeholder = document.createElement(\"pre\");\n    elt.style.cssText = \"height: 0; overflow: visible\";\n    elt.style.direction = cm.getOption(\"direction\");\n    elt.className = \"CodeMirror-placeholder CodeMirror-line-like\";\n    var placeHolder = cm.getOption(\"placeholder\")\n    if (typeof placeHolder == \"string\") placeHolder = document.createTextNode(placeHolder)\n    elt.appendChild(placeHolder)\n    cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);\n  }\n\n  function onBlur(cm) {\n    if (isEmpty(cm)) setPlaceholder(cm);\n  }\n  function onChange(cm) {\n    var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);\n    wrapper.className = wrapper.className.replace(\" CodeMirror-empty\", \"\") + (empty ? \" CodeMirror-empty\" : \"\");\n\n    if (empty) setPlaceholder(cm);\n    else clearPlaceholder(cm);\n  }\n\n  function isEmpty(cm) {\n    return (cm.lineCount() === 1) && (cm.getLine(0) === \"\");\n  }\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n// Utility function that allows modes to be combined. The mode given\n// as the base argument takes care of most of the normal mode\n// functionality, but a second (typically simple) mode is used, which\n// can override the style of text. Both modes get to parse all of the\n// text, but when both assign a non-null style to a piece of code, the\n// overlay wins, unless the combine argument was true and not overridden,\n// or state.overlay.combineTokens was true, in which case the styles are\n// combined.\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nCodeMirror.overlayMode = function(base, overlay, combine) {\n  return {\n    startState: function() {\n      return {\n        base: CodeMirror.startState(base),\n        overlay: CodeMirror.startState(overlay),\n        basePos: 0, baseCur: null,\n        overlayPos: 0, overlayCur: null,\n        streamSeen: null\n      };\n    },\n    copyState: function(state) {\n      return {\n        base: CodeMirror.copyState(base, state.base),\n        overlay: CodeMirror.copyState(overlay, state.overlay),\n        basePos: state.basePos, baseCur: null,\n        overlayPos: state.overlayPos, overlayCur: null\n      };\n    },\n\n    token: function(stream, state) {\n      if (stream != state.streamSeen ||\n          Math.min(state.basePos, state.overlayPos) < stream.start) {\n        state.streamSeen = stream;\n        state.basePos = state.overlayPos = stream.start;\n      }\n\n      if (stream.start == state.basePos) {\n        state.baseCur = base.token(stream, state.base);\n        state.basePos = stream.pos;\n      }\n      if (stream.start == state.overlayPos) {\n        stream.pos = stream.start;\n        state.overlayCur = overlay.token(stream, state.overlay);\n        state.overlayPos = stream.pos;\n      }\n      stream.pos = Math.min(state.basePos, state.overlayPos);\n\n      // state.overlay.combineTokens always takes precedence over combine,\n      // unless set to null\n      if (state.overlayCur == null) return state.baseCur;\n      else if (state.baseCur != null &&\n               state.overlay.combineTokens ||\n               combine && state.overlay.combineTokens == null)\n        return state.baseCur + \" \" + state.overlayCur;\n      else return state.overlayCur;\n    },\n\n    indent: base.indent && function(state, textAfter, line) {\n      return base.indent(state.base, textAfter, line);\n    },\n    electricChars: base.electricChars,\n\n    innerMode: function(state) { return {state: state.base, mode: base}; },\n\n    blankLine: function(state) {\n      var baseToken, overlayToken;\n      if (base.blankLine) baseToken = base.blankLine(state.base);\n      if (overlay.blankLine) overlayToken = overlay.blankLine(state.overlay);\n\n      return overlayToken == null ?\n        baseToken :\n        (combine && baseToken != null ? baseToken + \" \" + overlayToken : overlayToken);\n    }\n  };\n};\n\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n  var WRAP_CLASS = \"CodeMirror-activeline\";\n  var BACK_CLASS = \"CodeMirror-activeline-background\";\n  var GUTT_CLASS = \"CodeMirror-activeline-gutter\";\n\n  CodeMirror.defineOption(\"styleActiveLine\", false, function(cm, val, old) {\n    var prev = old == CodeMirror.Init ? false : old;\n    if (val == prev) return\n    if (prev) {\n      cm.off(\"beforeSelectionChange\", selectionChange);\n      clearActiveLines(cm);\n      delete cm.state.activeLines;\n    }\n    if (val) {\n      cm.state.activeLines = [];\n      updateActiveLines(cm, cm.listSelections());\n      cm.on(\"beforeSelectionChange\", selectionChange);\n    }\n  });\n\n  function clearActiveLines(cm) {\n    for (var i = 0; i < cm.state.activeLines.length; i++) {\n      cm.removeLineClass(cm.state.activeLines[i], \"wrap\", WRAP_CLASS);\n      cm.removeLineClass(cm.state.activeLines[i], \"background\", BACK_CLASS);\n      cm.removeLineClass(cm.state.activeLines[i], \"gutter\", GUTT_CLASS);\n    }\n  }\n\n  function sameArray(a, b) {\n    if (a.length != b.length) return false;\n    for (var i = 0; i < a.length; i++)\n      if (a[i] != b[i]) return false;\n    return true;\n  }\n\n  function updateActiveLines(cm, ranges) {\n    var active = [];\n    for (var i = 0; i < ranges.length; i++) {\n      var range = ranges[i];\n      var option = cm.getOption(\"styleActiveLine\");\n      if (typeof option == \"object\" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty())\n        continue\n      var line = cm.getLineHandleVisualStart(range.head.line);\n      if (active[active.length - 1] != line) active.push(line);\n    }\n    if (sameArray(cm.state.activeLines, active)) return;\n    cm.operation(function() {\n      clearActiveLines(cm);\n      for (var i = 0; i < active.length; i++) {\n        cm.addLineClass(active[i], \"wrap\", WRAP_CLASS);\n        cm.addLineClass(active[i], \"background\", BACK_CLASS);\n        cm.addLineClass(active[i], \"gutter\", GUTT_CLASS);\n      }\n      cm.state.activeLines = active;\n    });\n  }\n\n  function selectionChange(cm, sel) {\n    updateActiveLines(cm, sel.ranges);\n  }\n});\n","// extracted by mini-css-extract-plugin","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n// This is CodeMirror (https://codemirror.net), a code editor\n// implemented in JavaScript on top of the browser's DOM.\n//\n// You can find some technical background for some of the code below\n// at http://marijnhaverbeke.nl/blog/#cm-internals .\n\n(function (global, factory) {\n  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n  typeof define === 'function' && define.amd ? define(factory) :\n  (global.CodeMirror = factory());\n}(this, (function () { 'use strict';\n\n  // Kludges for bugs and behavior differences that can't be feature\n  // detected are enabled based on userAgent etc sniffing.\n  var userAgent = navigator.userAgent;\n  var platform = navigator.platform;\n\n  var gecko = /gecko\\/\\d/i.test(userAgent);\n  var ie_upto10 = /MSIE \\d/.test(userAgent);\n  var ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(userAgent);\n  var edge = /Edge\\/(\\d+)/.exec(userAgent);\n  var ie = ie_upto10 || ie_11up || edge;\n  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);\n  var webkit = !edge && /WebKit\\//.test(userAgent);\n  var qtwebkit = webkit && /Qt\\/\\d+\\.\\d+/.test(userAgent);\n  var chrome = !edge && /Chrome\\//.test(userAgent);\n  var presto = /Opera\\//.test(userAgent);\n  var safari = /Apple Computer/.test(navigator.vendor);\n  var mac_geMountainLion = /Mac OS X 1\\d\\D([8-9]|\\d\\d)\\D/.test(userAgent);\n  var phantom = /PhantomJS/.test(userAgent);\n\n  var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\\/\\w+/.test(userAgent);\n  var android = /Android/.test(userAgent);\n  // This is woefully incomplete. Suggestions for alternative methods welcome.\n  var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);\n  var mac = ios || /Mac/.test(platform);\n  var chromeOS = /\\bCrOS\\b/.test(userAgent);\n  var windows = /win/i.test(platform);\n\n  var presto_version = presto && userAgent.match(/Version\\/(\\d*\\.\\d*)/);\n  if (presto_version) { presto_version = Number(presto_version[1]); }\n  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }\n  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X\n  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));\n  var captureRightClick = gecko || (ie && ie_version >= 9);\n\n  function classTest(cls) { return new RegExp(\"(^|\\\\s)\" + cls + \"(?:$|\\\\s)\\\\s*\") }\n\n  var rmClass = function(node, cls) {\n    var current = node.className;\n    var match = classTest(cls).exec(current);\n    if (match) {\n      var after = current.slice(match.index + match[0].length);\n      node.className = current.slice(0, match.index) + (after ? match[1] + after : \"\");\n    }\n  };\n\n  function removeChildren(e) {\n    for (var count = e.childNodes.length; count > 0; --count)\n      { e.removeChild(e.firstChild); }\n    return e\n  }\n\n  function removeChildrenAndAdd(parent, e) {\n    return removeChildren(parent).appendChild(e)\n  }\n\n  function elt(tag, content, className, style) {\n    var e = document.createElement(tag);\n    if (className) { e.className = className; }\n    if (style) { e.style.cssText = style; }\n    if (typeof content == \"string\") { e.appendChild(document.createTextNode(content)); }\n    else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }\n    return e\n  }\n  // wrapper for elt, which removes the elt from the accessibility tree\n  function eltP(tag, content, className, style) {\n    var e = elt(tag, content, className, style);\n    e.setAttribute(\"role\", \"presentation\");\n    return e\n  }\n\n  var range;\n  if (document.createRange) { range = function(node, start, end, endNode) {\n    var r = document.createRange();\n    r.setEnd(endNode || node, end);\n    r.setStart(node, start);\n    return r\n  }; }\n  else { range = function(node, start, end) {\n    var r = document.body.createTextRange();\n    try { r.moveToElementText(node.parentNode); }\n    catch(e) { return r }\n    r.collapse(true);\n    r.moveEnd(\"character\", end);\n    r.moveStart(\"character\", start);\n    return r\n  }; }\n\n  function contains(parent, child) {\n    if (child.nodeType == 3) // Android browser always returns false when child is a textnode\n      { child = child.parentNode; }\n    if (parent.contains)\n      { return parent.contains(child) }\n    do {\n      if (child.nodeType == 11) { child = child.host; }\n      if (child == parent) { return true }\n    } while (child = child.parentNode)\n  }\n\n  function activeElt() {\n    // IE and Edge may throw an \"Unspecified Error\" when accessing document.activeElement.\n    // IE < 10 will throw when accessed while the page is loading or in an iframe.\n    // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.\n    var activeElement;\n    try {\n      activeElement = document.activeElement;\n    } catch(e) {\n      activeElement = document.body || null;\n    }\n    while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)\n      { activeElement = activeElement.shadowRoot.activeElement; }\n    return activeElement\n  }\n\n  function addClass(node, cls) {\n    var current = node.className;\n    if (!classTest(cls).test(current)) { node.className += (current ? \" \" : \"\") + cls; }\n  }\n  function joinClasses(a, b) {\n    var as = a.split(\" \");\n    for (var i = 0; i < as.length; i++)\n      { if (as[i] && !classTest(as[i]).test(b)) { b += \" \" + as[i]; } }\n    return b\n  }\n\n  var selectInput = function(node) { node.select(); };\n  if (ios) // Mobile Safari apparently has a bug where select() is broken.\n    { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }\n  else if (ie) // Suppress mysterious IE10 errors\n    { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }\n\n  function bind(f) {\n    var args = Array.prototype.slice.call(arguments, 1);\n    return function(){return f.apply(null, args)}\n  }\n\n  function copyObj(obj, target, overwrite) {\n    if (!target) { target = {}; }\n    for (var prop in obj)\n      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))\n        { target[prop] = obj[prop]; } }\n    return target\n  }\n\n  // Counts the column offset in a string, taking tabs into account.\n  // Used mostly to find indentation.\n  function countColumn(string, end, tabSize, startIndex, startValue) {\n    if (end == null) {\n      end = string.search(/[^\\s\\u00a0]/);\n      if (end == -1) { end = string.length; }\n    }\n    for (var i = startIndex || 0, n = startValue || 0;;) {\n      var nextTab = string.indexOf(\"\\t\", i);\n      if (nextTab < 0 || nextTab >= end)\n        { return n + (end - i) }\n      n += nextTab - i;\n      n += tabSize - (n % tabSize);\n      i = nextTab + 1;\n    }\n  }\n\n  var Delayed = function() {\n    this.id = null;\n    this.f = null;\n    this.time = 0;\n    this.handler = bind(this.onTimeout, this);\n  };\n  Delayed.prototype.onTimeout = function (self) {\n    self.id = 0;\n    if (self.time <= +new Date) {\n      self.f();\n    } else {\n      setTimeout(self.handler, self.time - +new Date);\n    }\n  };\n  Delayed.prototype.set = function (ms, f) {\n    this.f = f;\n    var time = +new Date + ms;\n    if (!this.id || time < this.time) {\n      clearTimeout(this.id);\n      this.id = setTimeout(this.handler, ms);\n      this.time = time;\n    }\n  };\n\n  function indexOf(array, elt) {\n    for (var i = 0; i < array.length; ++i)\n      { if (array[i] == elt) { return i } }\n    return -1\n  }\n\n  // Number of pixels added to scroller and sizer to hide scrollbar\n  var scrollerGap = 30;\n\n  // Returned or thrown by various protocols to signal 'I'm not\n  // handling this'.\n  var Pass = {toString: function(){return \"CodeMirror.Pass\"}};\n\n  // Reused option objects for setSelection & friends\n  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: \"*mouse\"}, sel_move = {origin: \"+move\"};\n\n  // The inverse of countColumn -- find the offset that corresponds to\n  // a particular column.\n  function findColumn(string, goal, tabSize) {\n    for (var pos = 0, col = 0;;) {\n      var nextTab = string.indexOf(\"\\t\", pos);\n      if (nextTab == -1) { nextTab = string.length; }\n      var skipped = nextTab - pos;\n      if (nextTab == string.length || col + skipped >= goal)\n        { return pos + Math.min(skipped, goal - col) }\n      col += nextTab - pos;\n      col += tabSize - (col % tabSize);\n      pos = nextTab + 1;\n      if (col >= goal) { return pos }\n    }\n  }\n\n  var spaceStrs = [\"\"];\n  function spaceStr(n) {\n    while (spaceStrs.length <= n)\n      { spaceStrs.push(lst(spaceStrs) + \" \"); }\n    return spaceStrs[n]\n  }\n\n  function lst(arr) { return arr[arr.length-1] }\n\n  function map(array, f) {\n    var out = [];\n    for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }\n    return out\n  }\n\n  function insertSorted(array, value, score) {\n    var pos = 0, priority = score(value);\n    while (pos < array.length && score(array[pos]) <= priority) { pos++; }\n    array.splice(pos, 0, value);\n  }\n\n  function nothing() {}\n\n  function createObj(base, props) {\n    var inst;\n    if (Object.create) {\n      inst = Object.create(base);\n    } else {\n      nothing.prototype = base;\n      inst = new nothing();\n    }\n    if (props) { copyObj(props, inst); }\n    return inst\n  }\n\n  var nonASCIISingleCaseWordChar = /[\\u00df\\u0587\\u0590-\\u05f4\\u0600-\\u06ff\\u3040-\\u309f\\u30a0-\\u30ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\uac00-\\ud7af]/;\n  function isWordCharBasic(ch) {\n    return /\\w/.test(ch) || ch > \"\\x80\" &&\n      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))\n  }\n  function isWordChar(ch, helper) {\n    if (!helper) { return isWordCharBasic(ch) }\n    if (helper.source.indexOf(\"\\\\w\") > -1 && isWordCharBasic(ch)) { return true }\n    return helper.test(ch)\n  }\n\n  function isEmpty(obj) {\n    for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }\n    return true\n  }\n\n  // Extending unicode characters. A series of a non-extending char +\n  // any number of extending chars is treated as a single unit as far\n  // as editing and measuring is concerned. This is not fully correct,\n  // since some scripts/fonts/browsers also treat other configurations\n  // of code points as a group.\n  var extendingChars = /[\\u0300-\\u036f\\u0483-\\u0489\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u064b-\\u065e\\u0670\\u06d6-\\u06dc\\u06de-\\u06e4\\u06e7\\u06e8\\u06ea-\\u06ed\\u0711\\u0730-\\u074a\\u07a6-\\u07b0\\u07eb-\\u07f3\\u0816-\\u0819\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0900-\\u0902\\u093c\\u0941-\\u0948\\u094d\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09bc\\u09be\\u09c1-\\u09c4\\u09cd\\u09d7\\u09e2\\u09e3\\u0a01\\u0a02\\u0a3c\\u0a41\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a70\\u0a71\\u0a75\\u0a81\\u0a82\\u0abc\\u0ac1-\\u0ac5\\u0ac7\\u0ac8\\u0acd\\u0ae2\\u0ae3\\u0b01\\u0b3c\\u0b3e\\u0b3f\\u0b41-\\u0b44\\u0b4d\\u0b56\\u0b57\\u0b62\\u0b63\\u0b82\\u0bbe\\u0bc0\\u0bcd\\u0bd7\\u0c3e-\\u0c40\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62\\u0c63\\u0cbc\\u0cbf\\u0cc2\\u0cc6\\u0ccc\\u0ccd\\u0cd5\\u0cd6\\u0ce2\\u0ce3\\u0d3e\\u0d41-\\u0d44\\u0d4d\\u0d57\\u0d62\\u0d63\\u0dca\\u0dcf\\u0dd2-\\u0dd4\\u0dd6\\u0ddf\\u0e31\\u0e34-\\u0e3a\\u0e47-\\u0e4e\\u0eb1\\u0eb4-\\u0eb9\\u0ebb\\u0ebc\\u0ec8-\\u0ecd\\u0f18\\u0f19\\u0f35\\u0f37\\u0f39\\u0f71-\\u0f7e\\u0f80-\\u0f84\\u0f86\\u0f87\\u0f90-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u102d-\\u1030\\u1032-\\u1037\\u1039\\u103a\\u103d\\u103e\\u1058\\u1059\\u105e-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108d\\u109d\\u135f\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17b7-\\u17bd\\u17c6\\u17c9-\\u17d3\\u17dd\\u180b-\\u180d\\u18a9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193b\\u1a17\\u1a18\\u1a56\\u1a58-\\u1a5e\\u1a60\\u1a62\\u1a65-\\u1a6c\\u1a73-\\u1a7c\\u1a7f\\u1b00-\\u1b03\\u1b34\\u1b36-\\u1b3a\\u1b3c\\u1b42\\u1b6b-\\u1b73\\u1b80\\u1b81\\u1ba2-\\u1ba5\\u1ba8\\u1ba9\\u1c2c-\\u1c33\\u1c36\\u1c37\\u1cd0-\\u1cd2\\u1cd4-\\u1ce0\\u1ce2-\\u1ce8\\u1ced\\u1dc0-\\u1de6\\u1dfd-\\u1dff\\u200c\\u200d\\u20d0-\\u20f0\\u2cef-\\u2cf1\\u2de0-\\u2dff\\u302a-\\u302f\\u3099\\u309a\\ua66f-\\ua672\\ua67c\\ua67d\\ua6f0\\ua6f1\\ua802\\ua806\\ua80b\\ua825\\ua826\\ua8c4\\ua8e0-\\ua8f1\\ua926-\\ua92d\\ua947-\\ua951\\ua980-\\ua982\\ua9b3\\ua9b6-\\ua9b9\\ua9bc\\uaa29-\\uaa2e\\uaa31\\uaa32\\uaa35\\uaa36\\uaa43\\uaa4c\\uaab0\\uaab2-\\uaab4\\uaab7\\uaab8\\uaabe\\uaabf\\uaac1\\uabe5\\uabe8\\uabed\\udc00-\\udfff\\ufb1e\\ufe00-\\ufe0f\\ufe20-\\ufe26\\uff9e\\uff9f]/;\n  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }\n\n  // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.\n  function skipExtendingChars(str, pos, dir) {\n    while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }\n    return pos\n  }\n\n  // Returns the value from the range [`from`; `to`] that satisfies\n  // `pred` and is closest to `from`. Assumes that at least `to`\n  // satisfies `pred`. Supports `from` being greater than `to`.\n  function findFirst(pred, from, to) {\n    // At any point we are certain `to` satisfies `pred`, don't know\n    // whether `from` does.\n    var dir = from > to ? -1 : 1;\n    for (;;) {\n      if (from == to) { return from }\n      var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);\n      if (mid == from) { return pred(mid) ? from : to }\n      if (pred(mid)) { to = mid; }\n      else { from = mid + dir; }\n    }\n  }\n\n  // BIDI HELPERS\n\n  function iterateBidiSections(order, from, to, f) {\n    if (!order) { return f(from, to, \"ltr\", 0) }\n    var found = false;\n    for (var i = 0; i < order.length; ++i) {\n      var part = order[i];\n      if (part.from < to && part.to > from || from == to && part.to == from) {\n        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? \"rtl\" : \"ltr\", i);\n        found = true;\n      }\n    }\n    if (!found) { f(from, to, \"ltr\"); }\n  }\n\n  var bidiOther = null;\n  function getBidiPartAt(order, ch, sticky) {\n    var found;\n    bidiOther = null;\n    for (var i = 0; i < order.length; ++i) {\n      var cur = order[i];\n      if (cur.from < ch && cur.to > ch) { return i }\n      if (cur.to == ch) {\n        if (cur.from != cur.to && sticky == \"before\") { found = i; }\n        else { bidiOther = i; }\n      }\n      if (cur.from == ch) {\n        if (cur.from != cur.to && sticky != \"before\") { found = i; }\n        else { bidiOther = i; }\n      }\n    }\n    return found != null ? found : bidiOther\n  }\n\n  // Bidirectional ordering algorithm\n  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm\n  // that this (partially) implements.\n\n  // One-char codes used for character types:\n  // L (L):   Left-to-Right\n  // R (R):   Right-to-Left\n  // r (AL):  Right-to-Left Arabic\n  // 1 (EN):  European Number\n  // + (ES):  European Number Separator\n  // % (ET):  European Number Terminator\n  // n (AN):  Arabic Number\n  // , (CS):  Common Number Separator\n  // m (NSM): Non-Spacing Mark\n  // b (BN):  Boundary Neutral\n  // s (B):   Paragraph Separator\n  // t (S):   Segment Separator\n  // w (WS):  Whitespace\n  // N (ON):  Other Neutrals\n\n  // Returns null if characters are ordered as they appear\n  // (left-to-right), or an array of sections ({from, to, level}\n  // objects) in the order in which they occur visually.\n  var bidiOrdering = (function() {\n    // Character types for codepoints 0 to 0xff\n    var lowTypes = \"bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN\";\n    // Character types for codepoints 0x600 to 0x6f9\n    var arabicTypes = \"nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111\";\n    function charType(code) {\n      if (code <= 0xf7) { return lowTypes.charAt(code) }\n      else if (0x590 <= code && code <= 0x5f4) { return \"R\" }\n      else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }\n      else if (0x6ee <= code && code <= 0x8ac) { return \"r\" }\n      else if (0x2000 <= code && code <= 0x200b) { return \"w\" }\n      else if (code == 0x200c) { return \"b\" }\n      else { return \"L\" }\n    }\n\n    var bidiRE = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\n    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;\n\n    function BidiSpan(level, from, to) {\n      this.level = level;\n      this.from = from; this.to = to;\n    }\n\n    return function(str, direction) {\n      var outerType = direction == \"ltr\" ? \"L\" : \"R\";\n\n      if (str.length == 0 || direction == \"ltr\" && !bidiRE.test(str)) { return false }\n      var len = str.length, types = [];\n      for (var i = 0; i < len; ++i)\n        { types.push(charType(str.charCodeAt(i))); }\n\n      // W1. Examine each non-spacing mark (NSM) in the level run, and\n      // change the type of the NSM to the type of the previous\n      // character. If the NSM is at the start of the level run, it will\n      // get the type of sor.\n      for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {\n        var type = types[i$1];\n        if (type == \"m\") { types[i$1] = prev; }\n        else { prev = type; }\n      }\n\n      // W2. Search backwards from each instance of a European number\n      // until the first strong type (R, L, AL, or sor) is found. If an\n      // AL is found, change the type of the European number to Arabic\n      // number.\n      // W3. Change all ALs to R.\n      for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {\n        var type$1 = types[i$2];\n        if (type$1 == \"1\" && cur == \"r\") { types[i$2] = \"n\"; }\n        else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == \"r\") { types[i$2] = \"R\"; } }\n      }\n\n      // W4. A single European separator between two European numbers\n      // changes to a European number. A single common separator between\n      // two numbers of the same type changes to that type.\n      for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {\n        var type$2 = types[i$3];\n        if (type$2 == \"+\" && prev$1 == \"1\" && types[i$3+1] == \"1\") { types[i$3] = \"1\"; }\n        else if (type$2 == \",\" && prev$1 == types[i$3+1] &&\n                 (prev$1 == \"1\" || prev$1 == \"n\")) { types[i$3] = prev$1; }\n        prev$1 = type$2;\n      }\n\n      // W5. A sequence of European terminators adjacent to European\n      // numbers changes to all European numbers.\n      // W6. Otherwise, separators and terminators change to Other\n      // Neutral.\n      for (var i$4 = 0; i$4 < len; ++i$4) {\n        var type$3 = types[i$4];\n        if (type$3 == \",\") { types[i$4] = \"N\"; }\n        else if (type$3 == \"%\") {\n          var end = (void 0);\n          for (end = i$4 + 1; end < len && types[end] == \"%\"; ++end) {}\n          var replace = (i$4 && types[i$4-1] == \"!\") || (end < len && types[end] == \"1\") ? \"1\" : \"N\";\n          for (var j = i$4; j < end; ++j) { types[j] = replace; }\n          i$4 = end - 1;\n        }\n      }\n\n      // W7. Search backwards from each instance of a European number\n      // until the first strong type (R, L, or sor) is found. If an L is\n      // found, then change the type of the European number to L.\n      for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {\n        var type$4 = types[i$5];\n        if (cur$1 == \"L\" && type$4 == \"1\") { types[i$5] = \"L\"; }\n        else if (isStrong.test(type$4)) { cur$1 = type$4; }\n      }\n\n      // N1. A sequence of neutrals takes the direction of the\n      // surrounding strong text if the text on both sides has the same\n      // direction. European and Arabic numbers act as if they were R in\n      // terms of their influence on neutrals. Start-of-level-run (sor)\n      // and end-of-level-run (eor) are used at level run boundaries.\n      // N2. Any remaining neutrals take the embedding direction.\n      for (var i$6 = 0; i$6 < len; ++i$6) {\n        if (isNeutral.test(types[i$6])) {\n          var end$1 = (void 0);\n          for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}\n          var before = (i$6 ? types[i$6-1] : outerType) == \"L\";\n          var after = (end$1 < len ? types[end$1] : outerType) == \"L\";\n          var replace$1 = before == after ? (before ? \"L\" : \"R\") : outerType;\n          for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }\n          i$6 = end$1 - 1;\n        }\n      }\n\n      // Here we depart from the documented algorithm, in order to avoid\n      // building up an actual levels array. Since there are only three\n      // levels (0, 1, 2) in an implementation that doesn't take\n      // explicit embedding into account, we can build up the order on\n      // the fly, without following the level-based algorithm.\n      var order = [], m;\n      for (var i$7 = 0; i$7 < len;) {\n        if (countsAsLeft.test(types[i$7])) {\n          var start = i$7;\n          for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}\n          order.push(new BidiSpan(0, start, i$7));\n        } else {\n          var pos = i$7, at = order.length;\n          for (++i$7; i$7 < len && types[i$7] != \"L\"; ++i$7) {}\n          for (var j$2 = pos; j$2 < i$7;) {\n            if (countsAsNum.test(types[j$2])) {\n              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); }\n              var nstart = j$2;\n              for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}\n              order.splice(at, 0, new BidiSpan(2, nstart, j$2));\n              pos = j$2;\n            } else { ++j$2; }\n          }\n          if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }\n        }\n      }\n      if (direction == \"ltr\") {\n        if (order[0].level == 1 && (m = str.match(/^\\s+/))) {\n          order[0].from = m[0].length;\n          order.unshift(new BidiSpan(0, 0, m[0].length));\n        }\n        if (lst(order).level == 1 && (m = str.match(/\\s+$/))) {\n          lst(order).to -= m[0].length;\n          order.push(new BidiSpan(0, len - m[0].length, len));\n        }\n      }\n\n      return direction == \"rtl\" ? order.reverse() : order\n    }\n  })();\n\n  // Get the bidi ordering for the given line (and cache it). Returns\n  // false for lines that are fully left-to-right, and an array of\n  // BidiSpan objects otherwise.\n  function getOrder(line, direction) {\n    var order = line.order;\n    if (order == null) { order = line.order = bidiOrdering(line.text, direction); }\n    return order\n  }\n\n  // EVENT HANDLING\n\n  // Lightweight event framework. on/off also work on DOM nodes,\n  // registering native DOM handlers.\n\n  var noHandlers = [];\n\n  var on = function(emitter, type, f) {\n    if (emitter.addEventListener) {\n      emitter.addEventListener(type, f, false);\n    } else if (emitter.attachEvent) {\n      emitter.attachEvent(\"on\" + type, f);\n    } else {\n      var map$$1 = emitter._handlers || (emitter._handlers = {});\n      map$$1[type] = (map$$1[type] || noHandlers).concat(f);\n    }\n  };\n\n  function getHandlers(emitter, type) {\n    return emitter._handlers && emitter._handlers[type] || noHandlers\n  }\n\n  function off(emitter, type, f) {\n    if (emitter.removeEventListener) {\n      emitter.removeEventListener(type, f, false);\n    } else if (emitter.detachEvent) {\n      emitter.detachEvent(\"on\" + type, f);\n    } else {\n      var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type];\n      if (arr) {\n        var index = indexOf(arr, f);\n        if (index > -1)\n          { map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }\n      }\n    }\n  }\n\n  function signal(emitter, type /*, values...*/) {\n    var handlers = getHandlers(emitter, type);\n    if (!handlers.length) { return }\n    var args = Array.prototype.slice.call(arguments, 2);\n    for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }\n  }\n\n  // The DOM events that CodeMirror handles can be overridden by\n  // registering a (non-DOM) handler on the editor for the event name,\n  // and preventDefault-ing the event in that handler.\n  function signalDOMEvent(cm, e, override) {\n    if (typeof e == \"string\")\n      { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }\n    signal(cm, override || e.type, cm, e);\n    return e_defaultPrevented(e) || e.codemirrorIgnore\n  }\n\n  function signalCursorActivity(cm) {\n    var arr = cm._handlers && cm._handlers.cursorActivity;\n    if (!arr) { return }\n    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);\n    for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)\n      { set.push(arr[i]); } }\n  }\n\n  function hasHandler(emitter, type) {\n    return getHandlers(emitter, type).length > 0\n  }\n\n  // Add on and off methods to a constructor's prototype, to make\n  // registering events on such objects more convenient.\n  function eventMixin(ctor) {\n    ctor.prototype.on = function(type, f) {on(this, type, f);};\n    ctor.prototype.off = function(type, f) {off(this, type, f);};\n  }\n\n  // Due to the fact that we still support jurassic IE versions, some\n  // compatibility wrappers are needed.\n\n  function e_preventDefault(e) {\n    if (e.preventDefault) { e.preventDefault(); }\n    else { e.returnValue = false; }\n  }\n  function e_stopPropagation(e) {\n    if (e.stopPropagation) { e.stopPropagation(); }\n    else { e.cancelBubble = true; }\n  }\n  function e_defaultPrevented(e) {\n    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false\n  }\n  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}\n\n  function e_target(e) {return e.target || e.srcElement}\n  function e_button(e) {\n    var b = e.which;\n    if (b == null) {\n      if (e.button & 1) { b = 1; }\n      else if (e.button & 2) { b = 3; }\n      else if (e.button & 4) { b = 2; }\n    }\n    if (mac && e.ctrlKey && b == 1) { b = 3; }\n    return b\n  }\n\n  // Detect drag-and-drop\n  var dragAndDrop = function() {\n    // There is *some* kind of drag-and-drop support in IE6-8, but I\n    // couldn't get it to work yet.\n    if (ie && ie_version < 9) { return false }\n    var div = elt('div');\n    return \"draggable\" in div || \"dragDrop\" in div\n  }();\n\n  var zwspSupported;\n  function zeroWidthElement(measure) {\n    if (zwspSupported == null) {\n      var test = elt(\"span\", \"\\u200b\");\n      removeChildrenAndAdd(measure, elt(\"span\", [test, document.createTextNode(\"x\")]));\n      if (measure.firstChild.offsetHeight != 0)\n        { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }\n    }\n    var node = zwspSupported ? elt(\"span\", \"\\u200b\") :\n      elt(\"span\", \"\\u00a0\", null, \"display: inline-block; width: 1px; margin-right: -1px\");\n    node.setAttribute(\"cm-text\", \"\");\n    return node\n  }\n\n  // Feature-detect IE's crummy client rect reporting for bidi text\n  var badBidiRects;\n  function hasBadBidiRects(measure) {\n    if (badBidiRects != null) { return badBidiRects }\n    var txt = removeChildrenAndAdd(measure, document.createTextNode(\"A\\u062eA\"));\n    var r0 = range(txt, 0, 1).getBoundingClientRect();\n    var r1 = range(txt, 1, 2).getBoundingClientRect();\n    removeChildren(measure);\n    if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)\n    return badBidiRects = (r1.right - r0.right < 3)\n  }\n\n  // See if \"\".split is the broken IE version, if so, provide an\n  // alternative way to split lines.\n  var splitLinesAuto = \"\\n\\nb\".split(/\\n/).length != 3 ? function (string) {\n    var pos = 0, result = [], l = string.length;\n    while (pos <= l) {\n      var nl = string.indexOf(\"\\n\", pos);\n      if (nl == -1) { nl = string.length; }\n      var line = string.slice(pos, string.charAt(nl - 1) == \"\\r\" ? nl - 1 : nl);\n      var rt = line.indexOf(\"\\r\");\n      if (rt != -1) {\n        result.push(line.slice(0, rt));\n        pos += rt + 1;\n      } else {\n        result.push(line);\n        pos = nl + 1;\n      }\n    }\n    return result\n  } : function (string) { return string.split(/\\r\\n?|\\n/); };\n\n  var hasSelection = window.getSelection ? function (te) {\n    try { return te.selectionStart != te.selectionEnd }\n    catch(e) { return false }\n  } : function (te) {\n    var range$$1;\n    try {range$$1 = te.ownerDocument.selection.createRange();}\n    catch(e) {}\n    if (!range$$1 || range$$1.parentElement() != te) { return false }\n    return range$$1.compareEndPoints(\"StartToEnd\", range$$1) != 0\n  };\n\n  var hasCopyEvent = (function () {\n    var e = elt(\"div\");\n    if (\"oncopy\" in e) { return true }\n    e.setAttribute(\"oncopy\", \"return;\");\n    return typeof e.oncopy == \"function\"\n  })();\n\n  var badZoomedRects = null;\n  function hasBadZoomedRects(measure) {\n    if (badZoomedRects != null) { return badZoomedRects }\n    var node = removeChildrenAndAdd(measure, elt(\"span\", \"x\"));\n    var normal = node.getBoundingClientRect();\n    var fromRange = range(node, 0, 1).getBoundingClientRect();\n    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1\n  }\n\n  // Known modes, by name and by MIME\n  var modes = {}, mimeModes = {};\n\n  // Extra arguments are stored as the mode's dependencies, which is\n  // used by (legacy) mechanisms like loadmode.js to automatically\n  // load a mode. (Preferred mechanism is the require/define calls.)\n  function defineMode(name, mode) {\n    if (arguments.length > 2)\n      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }\n    modes[name] = mode;\n  }\n\n  function defineMIME(mime, spec) {\n    mimeModes[mime] = spec;\n  }\n\n  // Given a MIME type, a {name, ...options} config object, or a name\n  // string, return a mode config object.\n  function resolveMode(spec) {\n    if (typeof spec == \"string\" && mimeModes.hasOwnProperty(spec)) {\n      spec = mimeModes[spec];\n    } else if (spec && typeof spec.name == \"string\" && mimeModes.hasOwnProperty(spec.name)) {\n      var found = mimeModes[spec.name];\n      if (typeof found == \"string\") { found = {name: found}; }\n      spec = createObj(found, spec);\n      spec.name = found.name;\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+xml$/.test(spec)) {\n      return resolveMode(\"application/xml\")\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+json$/.test(spec)) {\n      return resolveMode(\"application/json\")\n    }\n    if (typeof spec == \"string\") { return {name: spec} }\n    else { return spec || {name: \"null\"} }\n  }\n\n  // Given a mode spec (anything that resolveMode accepts), find and\n  // initialize an actual mode object.\n  function getMode(options, spec) {\n    spec = resolveMode(spec);\n    var mfactory = modes[spec.name];\n    if (!mfactory) { return getMode(options, \"text/plain\") }\n    var modeObj = mfactory(options, spec);\n    if (modeExtensions.hasOwnProperty(spec.name)) {\n      var exts = modeExtensions[spec.name];\n      for (var prop in exts) {\n        if (!exts.hasOwnProperty(prop)) { continue }\n        if (modeObj.hasOwnProperty(prop)) { modeObj[\"_\" + prop] = modeObj[prop]; }\n        modeObj[prop] = exts[prop];\n      }\n    }\n    modeObj.name = spec.name;\n    if (spec.helperType) { modeObj.helperType = spec.helperType; }\n    if (spec.modeProps) { for (var prop$1 in spec.modeProps)\n      { modeObj[prop$1] = spec.modeProps[prop$1]; } }\n\n    return modeObj\n  }\n\n  // This can be used to attach properties to mode objects from\n  // outside the actual mode definition.\n  var modeExtensions = {};\n  function extendMode(mode, properties) {\n    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});\n    copyObj(properties, exts);\n  }\n\n  function copyState(mode, state) {\n    if (state === true) { return state }\n    if (mode.copyState) { return mode.copyState(state) }\n    var nstate = {};\n    for (var n in state) {\n      var val = state[n];\n      if (val instanceof Array) { val = val.concat([]); }\n      nstate[n] = val;\n    }\n    return nstate\n  }\n\n  // Given a mode and a state (for that mode), find the inner mode and\n  // state at the position that the state refers to.\n  function innerMode(mode, state) {\n    var info;\n    while (mode.innerMode) {\n      info = mode.innerMode(state);\n      if (!info || info.mode == mode) { break }\n      state = info.state;\n      mode = info.mode;\n    }\n    return info || {mode: mode, state: state}\n  }\n\n  function startState(mode, a1, a2) {\n    return mode.startState ? mode.startState(a1, a2) : true\n  }\n\n  // STRING STREAM\n\n  // Fed to the mode parsers, provides helper functions to make\n  // parsers more succinct.\n\n  var StringStream = function(string, tabSize, lineOracle) {\n    this.pos = this.start = 0;\n    this.string = string;\n    this.tabSize = tabSize || 8;\n    this.lastColumnPos = this.lastColumnValue = 0;\n    this.lineStart = 0;\n    this.lineOracle = lineOracle;\n  };\n\n  StringStream.prototype.eol = function () {return this.pos >= this.string.length};\n  StringStream.prototype.sol = function () {return this.pos == this.lineStart};\n  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};\n  StringStream.prototype.next = function () {\n    if (this.pos < this.string.length)\n      { return this.string.charAt(this.pos++) }\n  };\n  StringStream.prototype.eat = function (match) {\n    var ch = this.string.charAt(this.pos);\n    var ok;\n    if (typeof match == \"string\") { ok = ch == match; }\n    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }\n    if (ok) {++this.pos; return ch}\n  };\n  StringStream.prototype.eatWhile = function (match) {\n    var start = this.pos;\n    while (this.eat(match)){}\n    return this.pos > start\n  };\n  StringStream.prototype.eatSpace = function () {\n      var this$1 = this;\n\n    var start = this.pos;\n    while (/[\\s\\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; }\n    return this.pos > start\n  };\n  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};\n  StringStream.prototype.skipTo = function (ch) {\n    var found = this.string.indexOf(ch, this.pos);\n    if (found > -1) {this.pos = found; return true}\n  };\n  StringStream.prototype.backUp = function (n) {this.pos -= n;};\n  StringStream.prototype.column = function () {\n    if (this.lastColumnPos < this.start) {\n      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);\n      this.lastColumnPos = this.start;\n    }\n    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n  };\n  StringStream.prototype.indentation = function () {\n    return countColumn(this.string, null, this.tabSize) -\n      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n  };\n  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {\n    if (typeof pattern == \"string\") {\n      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };\n      var substr = this.string.substr(this.pos, pattern.length);\n      if (cased(substr) == cased(pattern)) {\n        if (consume !== false) { this.pos += pattern.length; }\n        return true\n      }\n    } else {\n      var match = this.string.slice(this.pos).match(pattern);\n      if (match && match.index > 0) { return null }\n      if (match && consume !== false) { this.pos += match[0].length; }\n      return match\n    }\n  };\n  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};\n  StringStream.prototype.hideFirstChars = function (n, inner) {\n    this.lineStart += n;\n    try { return inner() }\n    finally { this.lineStart -= n; }\n  };\n  StringStream.prototype.lookAhead = function (n) {\n    var oracle = this.lineOracle;\n    return oracle && oracle.lookAhead(n)\n  };\n  StringStream.prototype.baseToken = function () {\n    var oracle = this.lineOracle;\n    return oracle && oracle.baseToken(this.pos)\n  };\n\n  // Find the line object corresponding to the given line number.\n  function getLine(doc, n) {\n    n -= doc.first;\n    if (n < 0 || n >= doc.size) { throw new Error(\"There is no line \" + (n + doc.first) + \" in the document.\") }\n    var chunk = doc;\n    while (!chunk.lines) {\n      for (var i = 0;; ++i) {\n        var child = chunk.children[i], sz = child.chunkSize();\n        if (n < sz) { chunk = child; break }\n        n -= sz;\n      }\n    }\n    return chunk.lines[n]\n  }\n\n  // Get the part of a document between two positions, as an array of\n  // strings.\n  function getBetween(doc, start, end) {\n    var out = [], n = start.line;\n    doc.iter(start.line, end.line + 1, function (line) {\n      var text = line.text;\n      if (n == end.line) { text = text.slice(0, end.ch); }\n      if (n == start.line) { text = text.slice(start.ch); }\n      out.push(text);\n      ++n;\n    });\n    return out\n  }\n  // Get the lines between from and to, as array of strings.\n  function getLines(doc, from, to) {\n    var out = [];\n    doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value\n    return out\n  }\n\n  // Update the height of a line, propagating the height change\n  // upwards to parent nodes.\n  function updateLineHeight(line, height) {\n    var diff = height - line.height;\n    if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }\n  }\n\n  // Given a line object, find its line number by walking up through\n  // its parent links.\n  function lineNo(line) {\n    if (line.parent == null) { return null }\n    var cur = line.parent, no = indexOf(cur.lines, line);\n    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {\n      for (var i = 0;; ++i) {\n        if (chunk.children[i] == cur) { break }\n        no += chunk.children[i].chunkSize();\n      }\n    }\n    return no + cur.first\n  }\n\n  // Find the line at the given vertical position, using the height\n  // information in the document tree.\n  function lineAtHeight(chunk, h) {\n    var n = chunk.first;\n    outer: do {\n      for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {\n        var child = chunk.children[i$1], ch = child.height;\n        if (h < ch) { chunk = child; continue outer }\n        h -= ch;\n        n += child.chunkSize();\n      }\n      return n\n    } while (!chunk.lines)\n    var i = 0;\n    for (; i < chunk.lines.length; ++i) {\n      var line = chunk.lines[i], lh = line.height;\n      if (h < lh) { break }\n      h -= lh;\n    }\n    return n + i\n  }\n\n  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}\n\n  function lineNumberFor(options, i) {\n    return String(options.lineNumberFormatter(i + options.firstLineNumber))\n  }\n\n  // A Pos instance represents a position within the text.\n  function Pos(line, ch, sticky) {\n    if ( sticky === void 0 ) sticky = null;\n\n    if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }\n    this.line = line;\n    this.ch = ch;\n    this.sticky = sticky;\n  }\n\n  // Compare two positions, return 0 if they are the same, a negative\n  // number when a is less, and a positive number otherwise.\n  function cmp(a, b) { return a.line - b.line || a.ch - b.ch }\n\n  function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }\n\n  function copyPos(x) {return Pos(x.line, x.ch)}\n  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }\n  function minPos(a, b) { return cmp(a, b) < 0 ? a : b }\n\n  // Most of the external API clips given positions to make sure they\n  // actually exist within the document.\n  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}\n  function clipPos(doc, pos) {\n    if (pos.line < doc.first) { return Pos(doc.first, 0) }\n    var last = doc.first + doc.size - 1;\n    if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }\n    return clipToLen(pos, getLine(doc, pos.line).text.length)\n  }\n  function clipToLen(pos, linelen) {\n    var ch = pos.ch;\n    if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }\n    else if (ch < 0) { return Pos(pos.line, 0) }\n    else { return pos }\n  }\n  function clipPosArray(doc, array) {\n    var out = [];\n    for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }\n    return out\n  }\n\n  var SavedContext = function(state, lookAhead) {\n    this.state = state;\n    this.lookAhead = lookAhead;\n  };\n\n  var Context = function(doc, state, line, lookAhead) {\n    this.state = state;\n    this.doc = doc;\n    this.line = line;\n    this.maxLookAhead = lookAhead || 0;\n    this.baseTokens = null;\n    this.baseTokenPos = 1;\n  };\n\n  Context.prototype.lookAhead = function (n) {\n    var line = this.doc.getLine(this.line + n);\n    if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }\n    return line\n  };\n\n  Context.prototype.baseToken = function (n) {\n      var this$1 = this;\n\n    if (!this.baseTokens) { return null }\n    while (this.baseTokens[this.baseTokenPos] <= n)\n      { this$1.baseTokenPos += 2; }\n    var type = this.baseTokens[this.baseTokenPos + 1];\n    return {type: type && type.replace(/( |^)overlay .*/, \"\"),\n            size: this.baseTokens[this.baseTokenPos] - n}\n  };\n\n  Context.prototype.nextLine = function () {\n    this.line++;\n    if (this.maxLookAhead > 0) { this.maxLookAhead--; }\n  };\n\n  Context.fromSaved = function (doc, saved, line) {\n    if (saved instanceof SavedContext)\n      { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }\n    else\n      { return new Context(doc, copyState(doc.mode, saved), line) }\n  };\n\n  Context.prototype.save = function (copy) {\n    var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;\n    return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state\n  };\n\n\n  // Compute a style array (an array starting with a mode generation\n  // -- for invalidation -- followed by pairs of end positions and\n  // style strings), which is used to highlight the tokens on the\n  // line.\n  function highlightLine(cm, line, context, forceToEnd) {\n    // A styles array always starts with a number identifying the\n    // mode/overlays that it is based on (for easy invalidation).\n    var st = [cm.state.modeGen], lineClasses = {};\n    // Compute the base array of styles\n    runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },\n            lineClasses, forceToEnd);\n    var state = context.state;\n\n    // Run overlays, adjust style array.\n    var loop = function ( o ) {\n      context.baseTokens = st;\n      var overlay = cm.state.overlays[o], i = 1, at = 0;\n      context.state = true;\n      runMode(cm, line.text, overlay.mode, context, function (end, style) {\n        var start = i;\n        // Ensure there's a token end at the current position, and that i points at it\n        while (at < end) {\n          var i_end = st[i];\n          if (i_end > end)\n            { st.splice(i, 1, end, st[i+1], i_end); }\n          i += 2;\n          at = Math.min(end, i_end);\n        }\n        if (!style) { return }\n        if (overlay.opaque) {\n          st.splice(start, i - start, end, \"overlay \" + style);\n          i = start + 2;\n        } else {\n          for (; start < i; start += 2) {\n            var cur = st[start+1];\n            st[start+1] = (cur ? cur + \" \" : \"\") + \"overlay \" + style;\n          }\n        }\n      }, lineClasses);\n      context.state = state;\n      context.baseTokens = null;\n      context.baseTokenPos = 1;\n    };\n\n    for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );\n\n    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}\n  }\n\n  function getLineStyles(cm, line, updateFrontier) {\n    if (!line.styles || line.styles[0] != cm.state.modeGen) {\n      var context = getContextBefore(cm, lineNo(line));\n      var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);\n      var result = highlightLine(cm, line, context);\n      if (resetState) { context.state = resetState; }\n      line.stateAfter = context.save(!resetState);\n      line.styles = result.styles;\n      if (result.classes) { line.styleClasses = result.classes; }\n      else if (line.styleClasses) { line.styleClasses = null; }\n      if (updateFrontier === cm.doc.highlightFrontier)\n        { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }\n    }\n    return line.styles\n  }\n\n  function getContextBefore(cm, n, precise) {\n    var doc = cm.doc, display = cm.display;\n    if (!doc.mode.startState) { return new Context(doc, true, n) }\n    var start = findStartLine(cm, n, precise);\n    var saved = start > doc.first && getLine(doc, start - 1).stateAfter;\n    var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);\n\n    doc.iter(start, n, function (line) {\n      processLine(cm, line.text, context);\n      var pos = context.line;\n      line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;\n      context.nextLine();\n    });\n    if (precise) { doc.modeFrontier = context.line; }\n    return context\n  }\n\n  // Lightweight form of highlight -- proceed over this line and\n  // update state, but don't save a style array. Used for lines that\n  // aren't currently visible.\n  function processLine(cm, text, context, startAt) {\n    var mode = cm.doc.mode;\n    var stream = new StringStream(text, cm.options.tabSize, context);\n    stream.start = stream.pos = startAt || 0;\n    if (text == \"\") { callBlankLine(mode, context.state); }\n    while (!stream.eol()) {\n      readToken(mode, stream, context.state);\n      stream.start = stream.pos;\n    }\n  }\n\n  function callBlankLine(mode, state) {\n    if (mode.blankLine) { return mode.blankLine(state) }\n    if (!mode.innerMode) { return }\n    var inner = innerMode(mode, state);\n    if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }\n  }\n\n  function readToken(mode, stream, state, inner) {\n    for (var i = 0; i < 10; i++) {\n      if (inner) { inner[0] = innerMode(mode, state).mode; }\n      var style = mode.token(stream, state);\n      if (stream.pos > stream.start) { return style }\n    }\n    throw new Error(\"Mode \" + mode.name + \" failed to advance stream.\")\n  }\n\n  var Token = function(stream, type, state) {\n    this.start = stream.start; this.end = stream.pos;\n    this.string = stream.current();\n    this.type = type || null;\n    this.state = state;\n  };\n\n  // Utility for getTokenAt and getLineTokens\n  function takeToken(cm, pos, precise, asArray) {\n    var doc = cm.doc, mode = doc.mode, style;\n    pos = clipPos(doc, pos);\n    var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);\n    var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;\n    if (asArray) { tokens = []; }\n    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {\n      stream.start = stream.pos;\n      style = readToken(mode, stream, context.state);\n      if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }\n    }\n    return asArray ? tokens : new Token(stream, style, context.state)\n  }\n\n  function extractLineClasses(type, output) {\n    if (type) { for (;;) {\n      var lineClass = type.match(/(?:^|\\s+)line-(background-)?(\\S+)/);\n      if (!lineClass) { break }\n      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);\n      var prop = lineClass[1] ? \"bgClass\" : \"textClass\";\n      if (output[prop] == null)\n        { output[prop] = lineClass[2]; }\n      else if (!(new RegExp(\"(?:^|\\s)\" + lineClass[2] + \"(?:$|\\s)\")).test(output[prop]))\n        { output[prop] += \" \" + lineClass[2]; }\n    } }\n    return type\n  }\n\n  // Run the given mode's parser over a line, calling f for each token.\n  function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {\n    var flattenSpans = mode.flattenSpans;\n    if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }\n    var curStart = 0, curStyle = null;\n    var stream = new StringStream(text, cm.options.tabSize, context), style;\n    var inner = cm.options.addModeClass && [null];\n    if (text == \"\") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }\n    while (!stream.eol()) {\n      if (stream.pos > cm.options.maxHighlightLength) {\n        flattenSpans = false;\n        if (forceToEnd) { processLine(cm, text, context, stream.pos); }\n        stream.pos = text.length;\n        style = null;\n      } else {\n        style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);\n      }\n      if (inner) {\n        var mName = inner[0].name;\n        if (mName) { style = \"m-\" + (style ? mName + \" \" + style : mName); }\n      }\n      if (!flattenSpans || curStyle != style) {\n        while (curStart < stream.start) {\n          curStart = Math.min(stream.start, curStart + 5000);\n          f(curStart, curStyle);\n        }\n        curStyle = style;\n      }\n      stream.start = stream.pos;\n    }\n    while (curStart < stream.pos) {\n      // Webkit seems to refuse to render text nodes longer than 57444\n      // characters, and returns inaccurate measurements in nodes\n      // starting around 5000 chars.\n      var pos = Math.min(stream.pos, curStart + 5000);\n      f(pos, curStyle);\n      curStart = pos;\n    }\n  }\n\n  // Finds the line to start with when starting a parse. Tries to\n  // find a line with a stateAfter, so that it can start with a\n  // valid state. If that fails, it returns the line with the\n  // smallest indentation, which tends to need the least context to\n  // parse correctly.\n  function findStartLine(cm, n, precise) {\n    var minindent, minline, doc = cm.doc;\n    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);\n    for (var search = n; search > lim; --search) {\n      if (search <= doc.first) { return doc.first }\n      var line = getLine(doc, search - 1), after = line.stateAfter;\n      if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))\n        { return search }\n      var indented = countColumn(line.text, null, cm.options.tabSize);\n      if (minline == null || minindent > indented) {\n        minline = search - 1;\n        minindent = indented;\n      }\n    }\n    return minline\n  }\n\n  function retreatFrontier(doc, n) {\n    doc.modeFrontier = Math.min(doc.modeFrontier, n);\n    if (doc.highlightFrontier < n - 10) { return }\n    var start = doc.first;\n    for (var line = n - 1; line > start; line--) {\n      var saved = getLine(doc, line).stateAfter;\n      // change is on 3\n      // state on line 1 looked ahead 2 -- so saw 3\n      // test 1 + 2 < 3 should cover this\n      if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {\n        start = line + 1;\n        break\n      }\n    }\n    doc.highlightFrontier = Math.min(doc.highlightFrontier, start);\n  }\n\n  // Optimize some code when these features are not used.\n  var sawReadOnlySpans = false, sawCollapsedSpans = false;\n\n  function seeReadOnlySpans() {\n    sawReadOnlySpans = true;\n  }\n\n  function seeCollapsedSpans() {\n    sawCollapsedSpans = true;\n  }\n\n  // TEXTMARKER SPANS\n\n  function MarkedSpan(marker, from, to) {\n    this.marker = marker;\n    this.from = from; this.to = to;\n  }\n\n  // Search an array of spans for a span matching the given marker.\n  function getMarkedSpanFor(spans, marker) {\n    if (spans) { for (var i = 0; i < spans.length; ++i) {\n      var span = spans[i];\n      if (span.marker == marker) { return span }\n    } }\n  }\n  // Remove a span from an array, returning undefined if no spans are\n  // left (we don't store arrays for lines without spans).\n  function removeMarkedSpan(spans, span) {\n    var r;\n    for (var i = 0; i < spans.length; ++i)\n      { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }\n    return r\n  }\n  // Add a span to a line.\n  function addMarkedSpan(line, span) {\n    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];\n    span.marker.attachLine(line);\n  }\n\n  // Used for the algorithm that adjusts markers for a change in the\n  // document. These functions cut an array of spans at a given\n  // character position, returning an array of remaining chunks (or\n  // undefined if nothing remains).\n  function markedSpansBefore(old, startCh, isInsert) {\n    var nw;\n    if (old) { for (var i = 0; i < old.length; ++i) {\n      var span = old[i], marker = span.marker;\n      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);\n      if (startsBefore || span.from == startCh && marker.type == \"bookmark\" && (!isInsert || !span.marker.insertLeft)) {\n        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)\n        ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));\n      }\n    } }\n    return nw\n  }\n  function markedSpansAfter(old, endCh, isInsert) {\n    var nw;\n    if (old) { for (var i = 0; i < old.length; ++i) {\n      var span = old[i], marker = span.marker;\n      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);\n      if (endsAfter || span.from == endCh && marker.type == \"bookmark\" && (!isInsert || span.marker.insertLeft)) {\n        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)\n        ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,\n                                              span.to == null ? null : span.to - endCh));\n      }\n    } }\n    return nw\n  }\n\n  // Given a change object, compute the new set of marker spans that\n  // cover the line in which the change took place. Removes spans\n  // entirely within the change, reconnects spans belonging to the\n  // same marker that appear on both sides of the change, and cuts off\n  // spans partially within the change. Returns an array of span\n  // arrays with one element for each line in (after) the change.\n  function stretchSpansOverChange(doc, change) {\n    if (change.full) { return null }\n    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;\n    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;\n    if (!oldFirst && !oldLast) { return null }\n\n    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;\n    // Get the spans that 'stick out' on both sides\n    var first = markedSpansBefore(oldFirst, startCh, isInsert);\n    var last = markedSpansAfter(oldLast, endCh, isInsert);\n\n    // Next, merge those two ends\n    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);\n    if (first) {\n      // Fix up .to properties of first\n      for (var i = 0; i < first.length; ++i) {\n        var span = first[i];\n        if (span.to == null) {\n          var found = getMarkedSpanFor(last, span.marker);\n          if (!found) { span.to = startCh; }\n          else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }\n        }\n      }\n    }\n    if (last) {\n      // Fix up .from in last (or move them into first in case of sameLine)\n      for (var i$1 = 0; i$1 < last.length; ++i$1) {\n        var span$1 = last[i$1];\n        if (span$1.to != null) { span$1.to += offset; }\n        if (span$1.from == null) {\n          var found$1 = getMarkedSpanFor(first, span$1.marker);\n          if (!found$1) {\n            span$1.from = offset;\n            if (sameLine) { (first || (first = [])).push(span$1); }\n          }\n        } else {\n          span$1.from += offset;\n          if (sameLine) { (first || (first = [])).push(span$1); }\n        }\n      }\n    }\n    // Make sure we didn't create any zero-length spans\n    if (first) { first = clearEmptySpans(first); }\n    if (last && last != first) { last = clearEmptySpans(last); }\n\n    var newMarkers = [first];\n    if (!sameLine) {\n      // Fill gap with whole-line-spans\n      var gap = change.text.length - 2, gapMarkers;\n      if (gap > 0 && first)\n        { for (var i$2 = 0; i$2 < first.length; ++i$2)\n          { if (first[i$2].to == null)\n            { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }\n      for (var i$3 = 0; i$3 < gap; ++i$3)\n        { newMarkers.push(gapMarkers); }\n      newMarkers.push(last);\n    }\n    return newMarkers\n  }\n\n  // Remove spans that are empty and don't have a clearWhenEmpty\n  // option of false.\n  function clearEmptySpans(spans) {\n    for (var i = 0; i < spans.length; ++i) {\n      var span = spans[i];\n      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)\n        { spans.splice(i--, 1); }\n    }\n    if (!spans.length) { return null }\n    return spans\n  }\n\n  // Used to 'clip' out readOnly ranges when making a change.\n  function removeReadOnlyRanges(doc, from, to) {\n    var markers = null;\n    doc.iter(from.line, to.line + 1, function (line) {\n      if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n        var mark = line.markedSpans[i].marker;\n        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))\n          { (markers || (markers = [])).push(mark); }\n      } }\n    });\n    if (!markers) { return null }\n    var parts = [{from: from, to: to}];\n    for (var i = 0; i < markers.length; ++i) {\n      var mk = markers[i], m = mk.find(0);\n      for (var j = 0; j < parts.length; ++j) {\n        var p = parts[j];\n        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }\n        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);\n        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)\n          { newParts.push({from: p.from, to: m.from}); }\n        if (dto > 0 || !mk.inclusiveRight && !dto)\n          { newParts.push({from: m.to, to: p.to}); }\n        parts.splice.apply(parts, newParts);\n        j += newParts.length - 3;\n      }\n    }\n    return parts\n  }\n\n  // Connect or disconnect spans from a line.\n  function detachMarkedSpans(line) {\n    var spans = line.markedSpans;\n    if (!spans) { return }\n    for (var i = 0; i < spans.length; ++i)\n      { spans[i].marker.detachLine(line); }\n    line.markedSpans = null;\n  }\n  function attachMarkedSpans(line, spans) {\n    if (!spans) { return }\n    for (var i = 0; i < spans.length; ++i)\n      { spans[i].marker.attachLine(line); }\n    line.markedSpans = spans;\n  }\n\n  // Helpers used when computing which overlapping collapsed span\n  // counts as the larger one.\n  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }\n  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }\n\n  // Returns a number indicating which of two overlapping collapsed\n  // spans is larger (and thus includes the other). Falls back to\n  // comparing ids when the spans cover exactly the same range.\n  function compareCollapsedMarkers(a, b) {\n    var lenDiff = a.lines.length - b.lines.length;\n    if (lenDiff != 0) { return lenDiff }\n    var aPos = a.find(), bPos = b.find();\n    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);\n    if (fromCmp) { return -fromCmp }\n    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);\n    if (toCmp) { return toCmp }\n    return b.id - a.id\n  }\n\n  // Find out whether a line ends or starts in a collapsed span. If\n  // so, return the marker for that span.\n  function collapsedSpanAtSide(line, start) {\n    var sps = sawCollapsedSpans && line.markedSpans, found;\n    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n      sp = sps[i];\n      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0))\n        { found = sp.marker; }\n    } }\n    return found\n  }\n  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }\n  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }\n\n  function collapsedSpanAround(line, ch) {\n    var sps = sawCollapsedSpans && line.markedSpans, found;\n    if (sps) { for (var i = 0; i < sps.length; ++i) {\n      var sp = sps[i];\n      if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }\n    } }\n    return found\n  }\n\n  // Test whether there exists a collapsed span that partially\n  // overlaps (covers the start or end, but not both) of a new span.\n  // Such overlap is not allowed.\n  function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) {\n    var line = getLine(doc, lineNo$$1);\n    var sps = sawCollapsedSpans && line.markedSpans;\n    if (sps) { for (var i = 0; i < sps.length; ++i) {\n      var sp = sps[i];\n      if (!sp.marker.collapsed) { continue }\n      var found = sp.marker.find(0);\n      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);\n      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);\n      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }\n      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||\n          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))\n        { return true }\n    } }\n  }\n\n  // A visual line is a line as drawn on the screen. Folding, for\n  // example, can cause multiple logical lines to appear on the same\n  // visual line. This finds the start of the visual line that the\n  // given line is part of (usually that is the line itself).\n  function visualLine(line) {\n    var merged;\n    while (merged = collapsedSpanAtStart(line))\n      { line = merged.find(-1, true).line; }\n    return line\n  }\n\n  function visualLineEnd(line) {\n    var merged;\n    while (merged = collapsedSpanAtEnd(line))\n      { line = merged.find(1, true).line; }\n    return line\n  }\n\n  // Returns an array of logical lines that continue the visual line\n  // started by the argument, or undefined if there are no such lines.\n  function visualLineContinued(line) {\n    var merged, lines;\n    while (merged = collapsedSpanAtEnd(line)) {\n      line = merged.find(1, true).line\n      ;(lines || (lines = [])).push(line);\n    }\n    return lines\n  }\n\n  // Get the line number of the start of the visual line that the\n  // given line number is part of.\n  function visualLineNo(doc, lineN) {\n    var line = getLine(doc, lineN), vis = visualLine(line);\n    if (line == vis) { return lineN }\n    return lineNo(vis)\n  }\n\n  // Get the line number of the start of the next visual line after\n  // the given line.\n  function visualLineEndNo(doc, lineN) {\n    if (lineN > doc.lastLine()) { return lineN }\n    var line = getLine(doc, lineN), merged;\n    if (!lineIsHidden(doc, line)) { return lineN }\n    while (merged = collapsedSpanAtEnd(line))\n      { line = merged.find(1, true).line; }\n    return lineNo(line) + 1\n  }\n\n  // Compute whether a line is hidden. Lines count as hidden when they\n  // are part of a visual line that starts with another line, or when\n  // they are entirely covered by collapsed, non-widget span.\n  function lineIsHidden(doc, line) {\n    var sps = sawCollapsedSpans && line.markedSpans;\n    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n      sp = sps[i];\n      if (!sp.marker.collapsed) { continue }\n      if (sp.from == null) { return true }\n      if (sp.marker.widgetNode) { continue }\n      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))\n        { return true }\n    } }\n  }\n  function lineIsHiddenInner(doc, line, span) {\n    if (span.to == null) {\n      var end = span.marker.find(1, true);\n      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))\n    }\n    if (span.marker.inclusiveRight && span.to == line.text.length)\n      { return true }\n    for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {\n      sp = line.markedSpans[i];\n      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&\n          (sp.to == null || sp.to != span.from) &&\n          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&\n          lineIsHiddenInner(doc, line, sp)) { return true }\n    }\n  }\n\n  // Find the height above the given line.\n  function heightAtLine(lineObj) {\n    lineObj = visualLine(lineObj);\n\n    var h = 0, chunk = lineObj.parent;\n    for (var i = 0; i < chunk.lines.length; ++i) {\n      var line = chunk.lines[i];\n      if (line == lineObj) { break }\n      else { h += line.height; }\n    }\n    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {\n      for (var i$1 = 0; i$1 < p.children.length; ++i$1) {\n        var cur = p.children[i$1];\n        if (cur == chunk) { break }\n        else { h += cur.height; }\n      }\n    }\n    return h\n  }\n\n  // Compute the character length of a line, taking into account\n  // collapsed ranges (see markText) that might hide parts, and join\n  // other lines onto it.\n  function lineLength(line) {\n    if (line.height == 0) { return 0 }\n    var len = line.text.length, merged, cur = line;\n    while (merged = collapsedSpanAtStart(cur)) {\n      var found = merged.find(0, true);\n      cur = found.from.line;\n      len += found.from.ch - found.to.ch;\n    }\n    cur = line;\n    while (merged = collapsedSpanAtEnd(cur)) {\n      var found$1 = merged.find(0, true);\n      len -= cur.text.length - found$1.from.ch;\n      cur = found$1.to.line;\n      len += cur.text.length - found$1.to.ch;\n    }\n    return len\n  }\n\n  // Find the longest line in the document.\n  function findMaxLine(cm) {\n    var d = cm.display, doc = cm.doc;\n    d.maxLine = getLine(doc, doc.first);\n    d.maxLineLength = lineLength(d.maxLine);\n    d.maxLineChanged = true;\n    doc.iter(function (line) {\n      var len = lineLength(line);\n      if (len > d.maxLineLength) {\n        d.maxLineLength = len;\n        d.maxLine = line;\n      }\n    });\n  }\n\n  // LINE DATA STRUCTURE\n\n  // Line objects. These hold state related to a line, including\n  // highlighting info (the styles array).\n  var Line = function(text, markedSpans, estimateHeight) {\n    this.text = text;\n    attachMarkedSpans(this, markedSpans);\n    this.height = estimateHeight ? estimateHeight(this) : 1;\n  };\n\n  Line.prototype.lineNo = function () { return lineNo(this) };\n  eventMixin(Line);\n\n  // Change the content (text, markers) of a line. Automatically\n  // invalidates cached information and tries to re-estimate the\n  // line's height.\n  function updateLine(line, text, markedSpans, estimateHeight) {\n    line.text = text;\n    if (line.stateAfter) { line.stateAfter = null; }\n    if (line.styles) { line.styles = null; }\n    if (line.order != null) { line.order = null; }\n    detachMarkedSpans(line);\n    attachMarkedSpans(line, markedSpans);\n    var estHeight = estimateHeight ? estimateHeight(line) : 1;\n    if (estHeight != line.height) { updateLineHeight(line, estHeight); }\n  }\n\n  // Detach a line from the document tree and its markers.\n  function cleanUpLine(line) {\n    line.parent = null;\n    detachMarkedSpans(line);\n  }\n\n  // Convert a style as returned by a mode (either null, or a string\n  // containing one or more styles) to a CSS style. This is cached,\n  // and also looks for line-wide styles.\n  var styleToClassCache = {}, styleToClassCacheWithMode = {};\n  function interpretTokenStyle(style, options) {\n    if (!style || /^\\s*$/.test(style)) { return null }\n    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;\n    return cache[style] ||\n      (cache[style] = style.replace(/\\S+/g, \"cm-$&\"))\n  }\n\n  // Render the DOM representation of the text of a line. Also builds\n  // up a 'line map', which points at the DOM nodes that represent\n  // specific stretches of text, and is used by the measuring code.\n  // The returned object contains the DOM node, this map, and\n  // information about line-wide styles that were set by the mode.\n  function buildLineContent(cm, lineView) {\n    // The padding-right forces the element to have a 'border', which\n    // is needed on Webkit to be able to get line-level bounding\n    // rectangles for it (in measureChar).\n    var content = eltP(\"span\", null, null, webkit ? \"padding-right: .1px\" : null);\n    var builder = {pre: eltP(\"pre\", [content], \"CodeMirror-line\"), content: content,\n                   col: 0, pos: 0, cm: cm,\n                   trailingSpace: false,\n                   splitSpaces: cm.getOption(\"lineWrapping\")};\n    lineView.measure = {};\n\n    // Iterate over the logical lines that make up this visual line.\n    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {\n      var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);\n      builder.pos = 0;\n      builder.addToken = buildToken;\n      // Optionally wire in some hacks into the token-rendering\n      // algorithm, to deal with browser quirks.\n      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))\n        { builder.addToken = buildTokenBadBidi(builder.addToken, order); }\n      builder.map = [];\n      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);\n      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));\n      if (line.styleClasses) {\n        if (line.styleClasses.bgClass)\n          { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || \"\"); }\n        if (line.styleClasses.textClass)\n          { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || \"\"); }\n      }\n\n      // Ensure at least a single node is present, for measuring.\n      if (builder.map.length == 0)\n        { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }\n\n      // Store the map and a cache object for the current logical line\n      if (i == 0) {\n        lineView.measure.map = builder.map;\n        lineView.measure.cache = {};\n      } else {\n  (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)\n        ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});\n      }\n    }\n\n    // See issue #2901\n    if (webkit) {\n      var last = builder.content.lastChild;\n      if (/\\bcm-tab\\b/.test(last.className) || (last.querySelector && last.querySelector(\".cm-tab\")))\n        { builder.content.className = \"cm-tab-wrap-hack\"; }\n    }\n\n    signal(cm, \"renderLine\", cm, lineView.line, builder.pre);\n    if (builder.pre.className)\n      { builder.textClass = joinClasses(builder.pre.className, builder.textClass || \"\"); }\n\n    return builder\n  }\n\n  function defaultSpecialCharPlaceholder(ch) {\n    var token = elt(\"span\", \"\\u2022\", \"cm-invalidchar\");\n    token.title = \"\\\\u\" + ch.charCodeAt(0).toString(16);\n    token.setAttribute(\"aria-label\", token.title);\n    return token\n  }\n\n  // Build up the DOM representation for a single token, and add it to\n  // the line map. Takes care to render special characters separately.\n  function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {\n    if (!text) { return }\n    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;\n    var special = builder.cm.state.specialChars, mustWrap = false;\n    var content;\n    if (!special.test(text)) {\n      builder.col += text.length;\n      content = document.createTextNode(displayText);\n      builder.map.push(builder.pos, builder.pos + text.length, content);\n      if (ie && ie_version < 9) { mustWrap = true; }\n      builder.pos += text.length;\n    } else {\n      content = document.createDocumentFragment();\n      var pos = 0;\n      while (true) {\n        special.lastIndex = pos;\n        var m = special.exec(text);\n        var skipped = m ? m.index - pos : text.length - pos;\n        if (skipped) {\n          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));\n          if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt])); }\n          else { content.appendChild(txt); }\n          builder.map.push(builder.pos, builder.pos + skipped, txt);\n          builder.col += skipped;\n          builder.pos += skipped;\n        }\n        if (!m) { break }\n        pos += skipped + 1;\n        var txt$1 = (void 0);\n        if (m[0] == \"\\t\") {\n          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;\n          txt$1 = content.appendChild(elt(\"span\", spaceStr(tabWidth), \"cm-tab\"));\n          txt$1.setAttribute(\"role\", \"presentation\");\n          txt$1.setAttribute(\"cm-text\", \"\\t\");\n          builder.col += tabWidth;\n        } else if (m[0] == \"\\r\" || m[0] == \"\\n\") {\n          txt$1 = content.appendChild(elt(\"span\", m[0] == \"\\r\" ? \"\\u240d\" : \"\\u2424\", \"cm-invalidchar\"));\n          txt$1.setAttribute(\"cm-text\", m[0]);\n          builder.col += 1;\n        } else {\n          txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);\n          txt$1.setAttribute(\"cm-text\", m[0]);\n          if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt$1])); }\n          else { content.appendChild(txt$1); }\n          builder.col += 1;\n        }\n        builder.map.push(builder.pos, builder.pos + 1, txt$1);\n        builder.pos++;\n      }\n    }\n    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;\n    if (style || startStyle || endStyle || mustWrap || css) {\n      var fullStyle = style || \"\";\n      if (startStyle) { fullStyle += startStyle; }\n      if (endStyle) { fullStyle += endStyle; }\n      var token = elt(\"span\", [content], fullStyle, css);\n      if (attributes) {\n        for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != \"style\" && attr != \"class\")\n          { token.setAttribute(attr, attributes[attr]); } }\n      }\n      return builder.content.appendChild(token)\n    }\n    builder.content.appendChild(content);\n  }\n\n  // Change some spaces to NBSP to prevent the browser from collapsing\n  // trailing spaces at the end of a line when rendering text (issue #1362).\n  function splitSpaces(text, trailingBefore) {\n    if (text.length > 1 && !/  /.test(text)) { return text }\n    var spaceBefore = trailingBefore, result = \"\";\n    for (var i = 0; i < text.length; i++) {\n      var ch = text.charAt(i);\n      if (ch == \" \" && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))\n        { ch = \"\\u00a0\"; }\n      result += ch;\n      spaceBefore = ch == \" \";\n    }\n    return result\n  }\n\n  // Work around nonsense dimensions being reported for stretches of\n  // right-to-left text.\n  function buildTokenBadBidi(inner, order) {\n    return function (builder, text, style, startStyle, endStyle, css, attributes) {\n      style = style ? style + \" cm-force-border\" : \"cm-force-border\";\n      var start = builder.pos, end = start + text.length;\n      for (;;) {\n        // Find the part that overlaps with the start of this text\n        var part = (void 0);\n        for (var i = 0; i < order.length; i++) {\n          part = order[i];\n          if (part.to > start && part.from <= start) { break }\n        }\n        if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }\n        inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);\n        startStyle = null;\n        text = text.slice(part.to - start);\n        start = part.to;\n      }\n    }\n  }\n\n  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {\n    var widget = !ignoreWidget && marker.widgetNode;\n    if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }\n    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {\n      if (!widget)\n        { widget = builder.content.appendChild(document.createElement(\"span\")); }\n      widget.setAttribute(\"cm-marker\", marker.id);\n    }\n    if (widget) {\n      builder.cm.display.input.setUneditable(widget);\n      builder.content.appendChild(widget);\n    }\n    builder.pos += size;\n    builder.trailingSpace = false;\n  }\n\n  // Outputs a number of spans to make up a line, taking highlighting\n  // and marked text into account.\n  function insertLineContent(line, builder, styles) {\n    var spans = line.markedSpans, allText = line.text, at = 0;\n    if (!spans) {\n      for (var i$1 = 1; i$1 < styles.length; i$1+=2)\n        { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }\n      return\n    }\n\n    var len = allText.length, pos = 0, i = 1, text = \"\", style, css;\n    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;\n    for (;;) {\n      if (nextChange == pos) { // Update current marker set\n        spanStyle = spanEndStyle = spanStartStyle = css = \"\";\n        attributes = null;\n        collapsed = null; nextChange = Infinity;\n        var foundBookmarks = [], endStyles = (void 0);\n        for (var j = 0; j < spans.length; ++j) {\n          var sp = spans[j], m = sp.marker;\n          if (m.type == \"bookmark\" && sp.from == pos && m.widgetNode) {\n            foundBookmarks.push(m);\n          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {\n            if (sp.to != null && sp.to != pos && nextChange > sp.to) {\n              nextChange = sp.to;\n              spanEndStyle = \"\";\n            }\n            if (m.className) { spanStyle += \" \" + m.className; }\n            if (m.css) { css = (css ? css + \";\" : \"\") + m.css; }\n            if (m.startStyle && sp.from == pos) { spanStartStyle += \" \" + m.startStyle; }\n            if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }\n            // support for the old title property\n            // https://github.com/codemirror/CodeMirror/pull/5673\n            if (m.title) { (attributes || (attributes = {})).title = m.title; }\n            if (m.attributes) {\n              for (var attr in m.attributes)\n                { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }\n            }\n            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))\n              { collapsed = sp; }\n          } else if (sp.from > pos && nextChange > sp.from) {\n            nextChange = sp.from;\n          }\n        }\n        if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)\n          { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += \" \" + endStyles[j$1]; } } }\n\n        if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)\n          { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }\n        if (collapsed && (collapsed.from || 0) == pos) {\n          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,\n                             collapsed.marker, collapsed.from == null);\n          if (collapsed.to == null) { return }\n          if (collapsed.to == pos) { collapsed = false; }\n        }\n      }\n      if (pos >= len) { break }\n\n      var upto = Math.min(len, nextChange);\n      while (true) {\n        if (text) {\n          var end = pos + text.length;\n          if (!collapsed) {\n            var tokenText = end > upto ? text.slice(0, upto - pos) : text;\n            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,\n                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : \"\", css, attributes);\n          }\n          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}\n          pos = end;\n          spanStartStyle = \"\";\n        }\n        text = allText.slice(at, at = styles[i++]);\n        style = interpretTokenStyle(styles[i++], builder.cm.options);\n      }\n    }\n  }\n\n\n  // These objects are used to represent the visible (currently drawn)\n  // part of the document. A LineView may correspond to multiple\n  // logical lines, if those are connected by collapsed ranges.\n  function LineView(doc, line, lineN) {\n    // The starting line\n    this.line = line;\n    // Continuing lines, if any\n    this.rest = visualLineContinued(line);\n    // Number of logical lines in this visual line\n    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;\n    this.node = this.text = null;\n    this.hidden = lineIsHidden(doc, line);\n  }\n\n  // Create a range of LineView objects for the given lines.\n  function buildViewArray(cm, from, to) {\n    var array = [], nextPos;\n    for (var pos = from; pos < to; pos = nextPos) {\n      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);\n      nextPos = pos + view.size;\n      array.push(view);\n    }\n    return array\n  }\n\n  var operationGroup = null;\n\n  function pushOperation(op) {\n    if (operationGroup) {\n      operationGroup.ops.push(op);\n    } else {\n      op.ownsGroup = operationGroup = {\n        ops: [op],\n        delayedCallbacks: []\n      };\n    }\n  }\n\n  function fireCallbacksForOps(group) {\n    // Calls delayed callbacks and cursorActivity handlers until no\n    // new ones appear\n    var callbacks = group.delayedCallbacks, i = 0;\n    do {\n      for (; i < callbacks.length; i++)\n        { callbacks[i].call(null); }\n      for (var j = 0; j < group.ops.length; j++) {\n        var op = group.ops[j];\n        if (op.cursorActivityHandlers)\n          { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)\n            { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }\n      }\n    } while (i < callbacks.length)\n  }\n\n  function finishOperation(op, endCb) {\n    var group = op.ownsGroup;\n    if (!group) { return }\n\n    try { fireCallbacksForOps(group); }\n    finally {\n      operationGroup = null;\n      endCb(group);\n    }\n  }\n\n  var orphanDelayedCallbacks = null;\n\n  // Often, we want to signal events at a point where we are in the\n  // middle of some work, but don't want the handler to start calling\n  // other methods on the editor, which might be in an inconsistent\n  // state or simply not expect any other events to happen.\n  // signalLater looks whether there are any handlers, and schedules\n  // them to be executed when the last operation ends, or, if no\n  // operation is active, when a timeout fires.\n  function signalLater(emitter, type /*, values...*/) {\n    var arr = getHandlers(emitter, type);\n    if (!arr.length) { return }\n    var args = Array.prototype.slice.call(arguments, 2), list;\n    if (operationGroup) {\n      list = operationGroup.delayedCallbacks;\n    } else if (orphanDelayedCallbacks) {\n      list = orphanDelayedCallbacks;\n    } else {\n      list = orphanDelayedCallbacks = [];\n      setTimeout(fireOrphanDelayed, 0);\n    }\n    var loop = function ( i ) {\n      list.push(function () { return arr[i].apply(null, args); });\n    };\n\n    for (var i = 0; i < arr.length; ++i)\n      loop( i );\n  }\n\n  function fireOrphanDelayed() {\n    var delayed = orphanDelayedCallbacks;\n    orphanDelayedCallbacks = null;\n    for (var i = 0; i < delayed.length; ++i) { delayed[i](); }\n  }\n\n  // When an aspect of a line changes, a string is added to\n  // lineView.changes. This updates the relevant part of the line's\n  // DOM structure.\n  function updateLineForChanges(cm, lineView, lineN, dims) {\n    for (var j = 0; j < lineView.changes.length; j++) {\n      var type = lineView.changes[j];\n      if (type == \"text\") { updateLineText(cm, lineView); }\n      else if (type == \"gutter\") { updateLineGutter(cm, lineView, lineN, dims); }\n      else if (type == \"class\") { updateLineClasses(cm, lineView); }\n      else if (type == \"widget\") { updateLineWidgets(cm, lineView, dims); }\n    }\n    lineView.changes = null;\n  }\n\n  // Lines with gutter elements, widgets or a background class need to\n  // be wrapped, and have the extra elements added to the wrapper div\n  function ensureLineWrapped(lineView) {\n    if (lineView.node == lineView.text) {\n      lineView.node = elt(\"div\", null, null, \"position: relative\");\n      if (lineView.text.parentNode)\n        { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }\n      lineView.node.appendChild(lineView.text);\n      if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }\n    }\n    return lineView.node\n  }\n\n  function updateLineBackground(cm, lineView) {\n    var cls = lineView.bgClass ? lineView.bgClass + \" \" + (lineView.line.bgClass || \"\") : lineView.line.bgClass;\n    if (cls) { cls += \" CodeMirror-linebackground\"; }\n    if (lineView.background) {\n      if (cls) { lineView.background.className = cls; }\n      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }\n    } else if (cls) {\n      var wrap = ensureLineWrapped(lineView);\n      lineView.background = wrap.insertBefore(elt(\"div\", null, cls), wrap.firstChild);\n      cm.display.input.setUneditable(lineView.background);\n    }\n  }\n\n  // Wrapper around buildLineContent which will reuse the structure\n  // in display.externalMeasured when possible.\n  function getLineContent(cm, lineView) {\n    var ext = cm.display.externalMeasured;\n    if (ext && ext.line == lineView.line) {\n      cm.display.externalMeasured = null;\n      lineView.measure = ext.measure;\n      return ext.built\n    }\n    return buildLineContent(cm, lineView)\n  }\n\n  // Redraw the line's text. Interacts with the background and text\n  // classes because the mode may output tokens that influence these\n  // classes.\n  function updateLineText(cm, lineView) {\n    var cls = lineView.text.className;\n    var built = getLineContent(cm, lineView);\n    if (lineView.text == lineView.node) { lineView.node = built.pre; }\n    lineView.text.parentNode.replaceChild(built.pre, lineView.text);\n    lineView.text = built.pre;\n    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {\n      lineView.bgClass = built.bgClass;\n      lineView.textClass = built.textClass;\n      updateLineClasses(cm, lineView);\n    } else if (cls) {\n      lineView.text.className = cls;\n    }\n  }\n\n  function updateLineClasses(cm, lineView) {\n    updateLineBackground(cm, lineView);\n    if (lineView.line.wrapClass)\n      { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }\n    else if (lineView.node != lineView.text)\n      { lineView.node.className = \"\"; }\n    var textClass = lineView.textClass ? lineView.textClass + \" \" + (lineView.line.textClass || \"\") : lineView.line.textClass;\n    lineView.text.className = textClass || \"\";\n  }\n\n  function updateLineGutter(cm, lineView, lineN, dims) {\n    if (lineView.gutter) {\n      lineView.node.removeChild(lineView.gutter);\n      lineView.gutter = null;\n    }\n    if (lineView.gutterBackground) {\n      lineView.node.removeChild(lineView.gutterBackground);\n      lineView.gutterBackground = null;\n    }\n    if (lineView.line.gutterClass) {\n      var wrap = ensureLineWrapped(lineView);\n      lineView.gutterBackground = elt(\"div\", null, \"CodeMirror-gutter-background \" + lineView.line.gutterClass,\n                                      (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px; width: \" + (dims.gutterTotalWidth) + \"px\"));\n      cm.display.input.setUneditable(lineView.gutterBackground);\n      wrap.insertBefore(lineView.gutterBackground, lineView.text);\n    }\n    var markers = lineView.line.gutterMarkers;\n    if (cm.options.lineNumbers || markers) {\n      var wrap$1 = ensureLineWrapped(lineView);\n      var gutterWrap = lineView.gutter = elt(\"div\", null, \"CodeMirror-gutter-wrapper\", (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px\"));\n      cm.display.input.setUneditable(gutterWrap);\n      wrap$1.insertBefore(gutterWrap, lineView.text);\n      if (lineView.line.gutterClass)\n        { gutterWrap.className += \" \" + lineView.line.gutterClass; }\n      if (cm.options.lineNumbers && (!markers || !markers[\"CodeMirror-linenumbers\"]))\n        { lineView.lineNumber = gutterWrap.appendChild(\n          elt(\"div\", lineNumberFor(cm.options, lineN),\n              \"CodeMirror-linenumber CodeMirror-gutter-elt\",\n              (\"left: \" + (dims.gutterLeft[\"CodeMirror-linenumbers\"]) + \"px; width: \" + (cm.display.lineNumInnerWidth) + \"px\"))); }\n      if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {\n        var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];\n        if (found)\n          { gutterWrap.appendChild(elt(\"div\", [found], \"CodeMirror-gutter-elt\",\n                                     (\"left: \" + (dims.gutterLeft[id]) + \"px; width: \" + (dims.gutterWidth[id]) + \"px\"))); }\n      } }\n    }\n  }\n\n  function updateLineWidgets(cm, lineView, dims) {\n    if (lineView.alignable) { lineView.alignable = null; }\n    for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {\n      next = node.nextSibling;\n      if (node.className == \"CodeMirror-linewidget\")\n        { lineView.node.removeChild(node); }\n    }\n    insertLineWidgets(cm, lineView, dims);\n  }\n\n  // Build a line's DOM representation from scratch\n  function buildLineElement(cm, lineView, lineN, dims) {\n    var built = getLineContent(cm, lineView);\n    lineView.text = lineView.node = built.pre;\n    if (built.bgClass) { lineView.bgClass = built.bgClass; }\n    if (built.textClass) { lineView.textClass = built.textClass; }\n\n    updateLineClasses(cm, lineView);\n    updateLineGutter(cm, lineView, lineN, dims);\n    insertLineWidgets(cm, lineView, dims);\n    return lineView.node\n  }\n\n  // A lineView may contain multiple logical lines (when merged by\n  // collapsed spans). The widgets for all of them need to be drawn.\n  function insertLineWidgets(cm, lineView, dims) {\n    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);\n    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n      { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }\n  }\n\n  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {\n    if (!line.widgets) { return }\n    var wrap = ensureLineWrapped(lineView);\n    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {\n      var widget = ws[i], node = elt(\"div\", [widget.node], \"CodeMirror-linewidget\");\n      if (!widget.handleMouseEvents) { node.setAttribute(\"cm-ignore-events\", \"true\"); }\n      positionLineWidget(widget, node, lineView, dims);\n      cm.display.input.setUneditable(node);\n      if (allowAbove && widget.above)\n        { wrap.insertBefore(node, lineView.gutter || lineView.text); }\n      else\n        { wrap.appendChild(node); }\n      signalLater(widget, \"redraw\");\n    }\n  }\n\n  function positionLineWidget(widget, node, lineView, dims) {\n    if (widget.noHScroll) {\n  (lineView.alignable || (lineView.alignable = [])).push(node);\n      var width = dims.wrapperWidth;\n      node.style.left = dims.fixedPos + \"px\";\n      if (!widget.coverGutter) {\n        width -= dims.gutterTotalWidth;\n        node.style.paddingLeft = dims.gutterTotalWidth + \"px\";\n      }\n      node.style.width = width + \"px\";\n    }\n    if (widget.coverGutter) {\n      node.style.zIndex = 5;\n      node.style.position = \"relative\";\n      if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + \"px\"; }\n    }\n  }\n\n  function widgetHeight(widget) {\n    if (widget.height != null) { return widget.height }\n    var cm = widget.doc.cm;\n    if (!cm) { return 0 }\n    if (!contains(document.body, widget.node)) {\n      var parentStyle = \"position: relative;\";\n      if (widget.coverGutter)\n        { parentStyle += \"margin-left: -\" + cm.display.gutters.offsetWidth + \"px;\"; }\n      if (widget.noHScroll)\n        { parentStyle += \"width: \" + cm.display.wrapper.clientWidth + \"px;\"; }\n      removeChildrenAndAdd(cm.display.measure, elt(\"div\", [widget.node], null, parentStyle));\n    }\n    return widget.height = widget.node.parentNode.offsetHeight\n  }\n\n  // Return true when the given mouse event happened in a widget\n  function eventInWidget(display, e) {\n    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {\n      if (!n || (n.nodeType == 1 && n.getAttribute(\"cm-ignore-events\") == \"true\") ||\n          (n.parentNode == display.sizer && n != display.mover))\n        { return true }\n    }\n  }\n\n  // POSITION MEASUREMENT\n\n  function paddingTop(display) {return display.lineSpace.offsetTop}\n  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}\n  function paddingH(display) {\n    if (display.cachedPaddingH) { return display.cachedPaddingH }\n    var e = removeChildrenAndAdd(display.measure, elt(\"pre\", \"x\", \"CodeMirror-line-like\"));\n    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;\n    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};\n    if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }\n    return data\n  }\n\n  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }\n  function displayWidth(cm) {\n    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth\n  }\n  function displayHeight(cm) {\n    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight\n  }\n\n  // Ensure the lineView.wrapping.heights array is populated. This is\n  // an array of bottom offsets for the lines that make up a drawn\n  // line. When lineWrapping is on, there might be more than one\n  // height.\n  function ensureLineHeights(cm, lineView, rect) {\n    var wrapping = cm.options.lineWrapping;\n    var curWidth = wrapping && displayWidth(cm);\n    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {\n      var heights = lineView.measure.heights = [];\n      if (wrapping) {\n        lineView.measure.width = curWidth;\n        var rects = lineView.text.firstChild.getClientRects();\n        for (var i = 0; i < rects.length - 1; i++) {\n          var cur = rects[i], next = rects[i + 1];\n          if (Math.abs(cur.bottom - next.bottom) > 2)\n            { heights.push((cur.bottom + next.top) / 2 - rect.top); }\n        }\n      }\n      heights.push(rect.bottom - rect.top);\n    }\n  }\n\n  // Find a line map (mapping character offsets to text nodes) and a\n  // measurement cache for the given line number. (A line view might\n  // contain multiple lines when collapsed ranges are present.)\n  function mapFromLineView(lineView, line, lineN) {\n    if (lineView.line == line)\n      { return {map: lineView.measure.map, cache: lineView.measure.cache} }\n    for (var i = 0; i < lineView.rest.length; i++)\n      { if (lineView.rest[i] == line)\n        { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }\n    for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)\n      { if (lineNo(lineView.rest[i$1]) > lineN)\n        { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }\n  }\n\n  // Render a line into the hidden node display.externalMeasured. Used\n  // when measurement is needed for a line that's not in the viewport.\n  function updateExternalMeasurement(cm, line) {\n    line = visualLine(line);\n    var lineN = lineNo(line);\n    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);\n    view.lineN = lineN;\n    var built = view.built = buildLineContent(cm, view);\n    view.text = built.pre;\n    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);\n    return view\n  }\n\n  // Get a {top, bottom, left, right} box (in line-local coordinates)\n  // for a given character.\n  function measureChar(cm, line, ch, bias) {\n    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)\n  }\n\n  // Find a line view that corresponds to the given line number.\n  function findViewForLine(cm, lineN) {\n    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)\n      { return cm.display.view[findViewIndex(cm, lineN)] }\n    var ext = cm.display.externalMeasured;\n    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)\n      { return ext }\n  }\n\n  // Measurement can be split in two steps, the set-up work that\n  // applies to the whole line, and the measurement of the actual\n  // character. Functions like coordsChar, that need to do a lot of\n  // measurements in a row, can thus ensure that the set-up work is\n  // only done once.\n  function prepareMeasureForLine(cm, line) {\n    var lineN = lineNo(line);\n    var view = findViewForLine(cm, lineN);\n    if (view && !view.text) {\n      view = null;\n    } else if (view && view.changes) {\n      updateLineForChanges(cm, view, lineN, getDimensions(cm));\n      cm.curOp.forceUpdate = true;\n    }\n    if (!view)\n      { view = updateExternalMeasurement(cm, line); }\n\n    var info = mapFromLineView(view, line, lineN);\n    return {\n      line: line, view: view, rect: null,\n      map: info.map, cache: info.cache, before: info.before,\n      hasHeights: false\n    }\n  }\n\n  // Given a prepared measurement object, measures the position of an\n  // actual character (or fetches it from the cache).\n  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {\n    if (prepared.before) { ch = -1; }\n    var key = ch + (bias || \"\"), found;\n    if (prepared.cache.hasOwnProperty(key)) {\n      found = prepared.cache[key];\n    } else {\n      if (!prepared.rect)\n        { prepared.rect = prepared.view.text.getBoundingClientRect(); }\n      if (!prepared.hasHeights) {\n        ensureLineHeights(cm, prepared.view, prepared.rect);\n        prepared.hasHeights = true;\n      }\n      found = measureCharInner(cm, prepared, ch, bias);\n      if (!found.bogus) { prepared.cache[key] = found; }\n    }\n    return {left: found.left, right: found.right,\n            top: varHeight ? found.rtop : found.top,\n            bottom: varHeight ? found.rbottom : found.bottom}\n  }\n\n  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};\n\n  function nodeAndOffsetInLineMap(map$$1, ch, bias) {\n    var node, start, end, collapse, mStart, mEnd;\n    // First, search the line map for the text node corresponding to,\n    // or closest to, the target character.\n    for (var i = 0; i < map$$1.length; i += 3) {\n      mStart = map$$1[i];\n      mEnd = map$$1[i + 1];\n      if (ch < mStart) {\n        start = 0; end = 1;\n        collapse = \"left\";\n      } else if (ch < mEnd) {\n        start = ch - mStart;\n        end = start + 1;\n      } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) {\n        end = mEnd - mStart;\n        start = end - 1;\n        if (ch >= mEnd) { collapse = \"right\"; }\n      }\n      if (start != null) {\n        node = map$$1[i + 2];\n        if (mStart == mEnd && bias == (node.insertLeft ? \"left\" : \"right\"))\n          { collapse = bias; }\n        if (bias == \"left\" && start == 0)\n          { while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) {\n            node = map$$1[(i -= 3) + 2];\n            collapse = \"left\";\n          } }\n        if (bias == \"right\" && start == mEnd - mStart)\n          { while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) {\n            node = map$$1[(i += 3) + 2];\n            collapse = \"right\";\n          } }\n        break\n      }\n    }\n    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}\n  }\n\n  function getUsefulRect(rects, bias) {\n    var rect = nullRect;\n    if (bias == \"left\") { for (var i = 0; i < rects.length; i++) {\n      if ((rect = rects[i]).left != rect.right) { break }\n    } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {\n      if ((rect = rects[i$1]).left != rect.right) { break }\n    } }\n    return rect\n  }\n\n  function measureCharInner(cm, prepared, ch, bias) {\n    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);\n    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;\n\n    var rect;\n    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.\n      for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned\n        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }\n        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }\n        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)\n          { rect = node.parentNode.getBoundingClientRect(); }\n        else\n          { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }\n        if (rect.left || rect.right || start == 0) { break }\n        end = start;\n        start = start - 1;\n        collapse = \"right\";\n      }\n      if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }\n    } else { // If it is a widget, simply get the box for the whole widget.\n      if (start > 0) { collapse = bias = \"right\"; }\n      var rects;\n      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)\n        { rect = rects[bias == \"right\" ? rects.length - 1 : 0]; }\n      else\n        { rect = node.getBoundingClientRect(); }\n    }\n    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {\n      var rSpan = node.parentNode.getClientRects()[0];\n      if (rSpan)\n        { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }\n      else\n        { rect = nullRect; }\n    }\n\n    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;\n    var mid = (rtop + rbot) / 2;\n    var heights = prepared.view.measure.heights;\n    var i = 0;\n    for (; i < heights.length - 1; i++)\n      { if (mid < heights[i]) { break } }\n    var top = i ? heights[i - 1] : 0, bot = heights[i];\n    var result = {left: (collapse == \"right\" ? rect.right : rect.left) - prepared.rect.left,\n                  right: (collapse == \"left\" ? rect.left : rect.right) - prepared.rect.left,\n                  top: top, bottom: bot};\n    if (!rect.left && !rect.right) { result.bogus = true; }\n    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }\n\n    return result\n  }\n\n  // Work around problem with bounding client rects on ranges being\n  // returned incorrectly when zoomed on IE10 and below.\n  function maybeUpdateRectForZooming(measure, rect) {\n    if (!window.screen || screen.logicalXDPI == null ||\n        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))\n      { return rect }\n    var scaleX = screen.logicalXDPI / screen.deviceXDPI;\n    var scaleY = screen.logicalYDPI / screen.deviceYDPI;\n    return {left: rect.left * scaleX, right: rect.right * scaleX,\n            top: rect.top * scaleY, bottom: rect.bottom * scaleY}\n  }\n\n  function clearLineMeasurementCacheFor(lineView) {\n    if (lineView.measure) {\n      lineView.measure.cache = {};\n      lineView.measure.heights = null;\n      if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n        { lineView.measure.caches[i] = {}; } }\n    }\n  }\n\n  function clearLineMeasurementCache(cm) {\n    cm.display.externalMeasure = null;\n    removeChildren(cm.display.lineMeasure);\n    for (var i = 0; i < cm.display.view.length; i++)\n      { clearLineMeasurementCacheFor(cm.display.view[i]); }\n  }\n\n  function clearCaches(cm) {\n    clearLineMeasurementCache(cm);\n    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;\n    if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }\n    cm.display.lineNumChars = null;\n  }\n\n  function pageScrollX() {\n    // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206\n    // which causes page_Offset and bounding client rects to use\n    // different reference viewports and invalidate our calculations.\n    if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }\n    return window.pageXOffset || (document.documentElement || document.body).scrollLeft\n  }\n  function pageScrollY() {\n    if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }\n    return window.pageYOffset || (document.documentElement || document.body).scrollTop\n  }\n\n  function widgetTopHeight(lineObj) {\n    var height = 0;\n    if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)\n      { height += widgetHeight(lineObj.widgets[i]); } } }\n    return height\n  }\n\n  // Converts a {top, bottom, left, right} box from line-local\n  // coordinates into another coordinate system. Context may be one of\n  // \"line\", \"div\" (display.lineDiv), \"local\"./null (editor), \"window\",\n  // or \"page\".\n  function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {\n    if (!includeWidgets) {\n      var height = widgetTopHeight(lineObj);\n      rect.top += height; rect.bottom += height;\n    }\n    if (context == \"line\") { return rect }\n    if (!context) { context = \"local\"; }\n    var yOff = heightAtLine(lineObj);\n    if (context == \"local\") { yOff += paddingTop(cm.display); }\n    else { yOff -= cm.display.viewOffset; }\n    if (context == \"page\" || context == \"window\") {\n      var lOff = cm.display.lineSpace.getBoundingClientRect();\n      yOff += lOff.top + (context == \"window\" ? 0 : pageScrollY());\n      var xOff = lOff.left + (context == \"window\" ? 0 : pageScrollX());\n      rect.left += xOff; rect.right += xOff;\n    }\n    rect.top += yOff; rect.bottom += yOff;\n    return rect\n  }\n\n  // Coverts a box from \"div\" coords to another coordinate system.\n  // Context may be \"window\", \"page\", \"div\", or \"local\"./null.\n  function fromCoordSystem(cm, coords, context) {\n    if (context == \"div\") { return coords }\n    var left = coords.left, top = coords.top;\n    // First move into \"page\" coordinate system\n    if (context == \"page\") {\n      left -= pageScrollX();\n      top -= pageScrollY();\n    } else if (context == \"local\" || !context) {\n      var localBox = cm.display.sizer.getBoundingClientRect();\n      left += localBox.left;\n      top += localBox.top;\n    }\n\n    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();\n    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}\n  }\n\n  function charCoords(cm, pos, context, lineObj, bias) {\n    if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }\n    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)\n  }\n\n  // Returns a box for a given cursor position, which may have an\n  // 'other' property containing the position of the secondary cursor\n  // on a bidi boundary.\n  // A cursor Pos(line, char, \"before\") is on the same visual line as `char - 1`\n  // and after `char - 1` in writing order of `char - 1`\n  // A cursor Pos(line, char, \"after\") is on the same visual line as `char`\n  // and before `char` in writing order of `char`\n  // Examples (upper-case letters are RTL, lower-case are LTR):\n  //     Pos(0, 1, ...)\n  //     before   after\n  // ab     a|b     a|b\n  // aB     a|B     aB|\n  // Ab     |Ab     A|b\n  // AB     B|A     B|A\n  // Every position after the last character on a line is considered to stick\n  // to the last character on the line.\n  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {\n    lineObj = lineObj || getLine(cm.doc, pos.line);\n    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }\n    function get(ch, right) {\n      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? \"right\" : \"left\", varHeight);\n      if (right) { m.left = m.right; } else { m.right = m.left; }\n      return intoCoordSystem(cm, lineObj, m, context)\n    }\n    var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;\n    if (ch >= lineObj.text.length) {\n      ch = lineObj.text.length;\n      sticky = \"before\";\n    } else if (ch <= 0) {\n      ch = 0;\n      sticky = \"after\";\n    }\n    if (!order) { return get(sticky == \"before\" ? ch - 1 : ch, sticky == \"before\") }\n\n    function getBidi(ch, partPos, invert) {\n      var part = order[partPos], right = part.level == 1;\n      return get(invert ? ch - 1 : ch, right != invert)\n    }\n    var partPos = getBidiPartAt(order, ch, sticky);\n    var other = bidiOther;\n    var val = getBidi(ch, partPos, sticky == \"before\");\n    if (other != null) { val.other = getBidi(ch, other, sticky != \"before\"); }\n    return val\n  }\n\n  // Used to cheaply estimate the coordinates for a position. Used for\n  // intermediate scroll updates.\n  function estimateCoords(cm, pos) {\n    var left = 0;\n    pos = clipPos(cm.doc, pos);\n    if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }\n    var lineObj = getLine(cm.doc, pos.line);\n    var top = heightAtLine(lineObj) + paddingTop(cm.display);\n    return {left: left, right: left, top: top, bottom: top + lineObj.height}\n  }\n\n  // Positions returned by coordsChar contain some extra information.\n  // xRel is the relative x position of the input coordinates compared\n  // to the found position (so xRel > 0 means the coordinates are to\n  // the right of the character position, for example). When outside\n  // is true, that means the coordinates lie outside the line's\n  // vertical range.\n  function PosWithInfo(line, ch, sticky, outside, xRel) {\n    var pos = Pos(line, ch, sticky);\n    pos.xRel = xRel;\n    if (outside) { pos.outside = outside; }\n    return pos\n  }\n\n  // Compute the character position closest to the given coordinates.\n  // Input must be lineSpace-local (\"div\" coordinate system).\n  function coordsChar(cm, x, y) {\n    var doc = cm.doc;\n    y += cm.display.viewOffset;\n    if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }\n    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;\n    if (lineN > last)\n      { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }\n    if (x < 0) { x = 0; }\n\n    var lineObj = getLine(doc, lineN);\n    for (;;) {\n      var found = coordsCharInner(cm, lineObj, lineN, x, y);\n      var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));\n      if (!collapsed) { return found }\n      var rangeEnd = collapsed.find(1);\n      if (rangeEnd.line == lineN) { return rangeEnd }\n      lineObj = getLine(doc, lineN = rangeEnd.line);\n    }\n  }\n\n  function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {\n    y -= widgetTopHeight(lineObj);\n    var end = lineObj.text.length;\n    var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);\n    end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);\n    return {begin: begin, end: end}\n  }\n\n  function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {\n    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }\n    var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), \"line\").top;\n    return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)\n  }\n\n  // Returns true if the given side of a box is after the given\n  // coordinates, in top-to-bottom, left-to-right order.\n  function boxIsAfter(box, x, y, left) {\n    return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x\n  }\n\n  function coordsCharInner(cm, lineObj, lineNo$$1, x, y) {\n    // Move y into line-local coordinate space\n    y -= heightAtLine(lineObj);\n    var preparedMeasure = prepareMeasureForLine(cm, lineObj);\n    // When directly calling `measureCharPrepared`, we have to adjust\n    // for the widgets at this line.\n    var widgetHeight$$1 = widgetTopHeight(lineObj);\n    var begin = 0, end = lineObj.text.length, ltr = true;\n\n    var order = getOrder(lineObj, cm.doc.direction);\n    // If the line isn't plain left-to-right text, first figure out\n    // which bidi section the coordinates fall into.\n    if (order) {\n      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)\n                   (cm, lineObj, lineNo$$1, preparedMeasure, order, x, y);\n      ltr = part.level != 1;\n      // The awkward -1 offsets are needed because findFirst (called\n      // on these below) will treat its first bound as inclusive,\n      // second as exclusive, but we want to actually address the\n      // characters in the part's range\n      begin = ltr ? part.from : part.to - 1;\n      end = ltr ? part.to : part.from - 1;\n    }\n\n    // A binary search to find the first character whose bounding box\n    // starts after the coordinates. If we run across any whose box wrap\n    // the coordinates, store that.\n    var chAround = null, boxAround = null;\n    var ch = findFirst(function (ch) {\n      var box = measureCharPrepared(cm, preparedMeasure, ch);\n      box.top += widgetHeight$$1; box.bottom += widgetHeight$$1;\n      if (!boxIsAfter(box, x, y, false)) { return false }\n      if (box.top <= y && box.left <= x) {\n        chAround = ch;\n        boxAround = box;\n      }\n      return true\n    }, begin, end);\n\n    var baseX, sticky, outside = false;\n    // If a box around the coordinates was found, use that\n    if (boxAround) {\n      // Distinguish coordinates nearer to the left or right side of the box\n      var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;\n      ch = chAround + (atStart ? 0 : 1);\n      sticky = atStart ? \"after\" : \"before\";\n      baseX = atLeft ? boxAround.left : boxAround.right;\n    } else {\n      // (Adjust for extended bound, if necessary.)\n      if (!ltr && (ch == end || ch == begin)) { ch++; }\n      // To determine which side to associate with, get the box to the\n      // left of the character and compare it's vertical position to the\n      // coordinates\n      sticky = ch == 0 ? \"after\" : ch == lineObj.text.length ? \"before\" :\n        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y) == ltr ?\n        \"after\" : \"before\";\n      // Now get accurate coordinates for this place, in order to get a\n      // base X position\n      var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), \"line\", lineObj, preparedMeasure);\n      baseX = coords.left;\n      outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;\n    }\n\n    ch = skipExtendingChars(lineObj.text, ch, 1);\n    return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX)\n  }\n\n  function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) {\n    // Bidi parts are sorted left-to-right, and in a non-line-wrapping\n    // situation, we can take this ordering to correspond to the visual\n    // ordering. This finds the first part whose end is after the given\n    // coordinates.\n    var index = findFirst(function (i) {\n      var part = order[i], ltr = part.level != 1;\n      return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? \"before\" : \"after\"),\n                                     \"line\", lineObj, preparedMeasure), x, y, true)\n    }, 0, order.length - 1);\n    var part = order[index];\n    // If this isn't the first part, the part's start is also after\n    // the coordinates, and the coordinates aren't on the same line as\n    // that start, move one part back.\n    if (index > 0) {\n      var ltr = part.level != 1;\n      var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? \"after\" : \"before\"),\n                               \"line\", lineObj, preparedMeasure);\n      if (boxIsAfter(start, x, y, true) && start.top > y)\n        { part = order[index - 1]; }\n    }\n    return part\n  }\n\n  function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {\n    // In a wrapped line, rtl text on wrapping boundaries can do things\n    // that don't correspond to the ordering in our `order` array at\n    // all, so a binary search doesn't work, and we want to return a\n    // part that only spans one line so that the binary search in\n    // coordsCharInner is safe. As such, we first find the extent of the\n    // wrapped line, and then do a flat search in which we discard any\n    // spans that aren't on the line.\n    var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);\n    var begin = ref.begin;\n    var end = ref.end;\n    if (/\\s/.test(lineObj.text.charAt(end - 1))) { end--; }\n    var part = null, closestDist = null;\n    for (var i = 0; i < order.length; i++) {\n      var p = order[i];\n      if (p.from >= end || p.to <= begin) { continue }\n      var ltr = p.level != 1;\n      var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;\n      // Weigh against spans ending before this, so that they are only\n      // picked if nothing ends after\n      var dist = endX < x ? x - endX + 1e9 : endX - x;\n      if (!part || closestDist > dist) {\n        part = p;\n        closestDist = dist;\n      }\n    }\n    if (!part) { part = order[order.length - 1]; }\n    // Clip the part to the wrapped line.\n    if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }\n    if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }\n    return part\n  }\n\n  var measureText;\n  // Compute the default text height.\n  function textHeight(display) {\n    if (display.cachedTextHeight != null) { return display.cachedTextHeight }\n    if (measureText == null) {\n      measureText = elt(\"pre\", null, \"CodeMirror-line-like\");\n      // Measure a bunch of lines, for browsers that compute\n      // fractional heights.\n      for (var i = 0; i < 49; ++i) {\n        measureText.appendChild(document.createTextNode(\"x\"));\n        measureText.appendChild(elt(\"br\"));\n      }\n      measureText.appendChild(document.createTextNode(\"x\"));\n    }\n    removeChildrenAndAdd(display.measure, measureText);\n    var height = measureText.offsetHeight / 50;\n    if (height > 3) { display.cachedTextHeight = height; }\n    removeChildren(display.measure);\n    return height || 1\n  }\n\n  // Compute the default character width.\n  function charWidth(display) {\n    if (display.cachedCharWidth != null) { return display.cachedCharWidth }\n    var anchor = elt(\"span\", \"xxxxxxxxxx\");\n    var pre = elt(\"pre\", [anchor], \"CodeMirror-line-like\");\n    removeChildrenAndAdd(display.measure, pre);\n    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;\n    if (width > 2) { display.cachedCharWidth = width; }\n    return width || 10\n  }\n\n  // Do a bulk-read of the DOM positions and sizes needed to draw the\n  // view, so that we don't interleave reading and writing to the DOM.\n  function getDimensions(cm) {\n    var d = cm.display, left = {}, width = {};\n    var gutterLeft = d.gutters.clientLeft;\n    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {\n      var id = cm.display.gutterSpecs[i].className;\n      left[id] = n.offsetLeft + n.clientLeft + gutterLeft;\n      width[id] = n.clientWidth;\n    }\n    return {fixedPos: compensateForHScroll(d),\n            gutterTotalWidth: d.gutters.offsetWidth,\n            gutterLeft: left,\n            gutterWidth: width,\n            wrapperWidth: d.wrapper.clientWidth}\n  }\n\n  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,\n  // but using getBoundingClientRect to get a sub-pixel-accurate\n  // result.\n  function compensateForHScroll(display) {\n    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left\n  }\n\n  // Returns a function that estimates the height of a line, to use as\n  // first approximation until the line becomes visible (and is thus\n  // properly measurable).\n  function estimateHeight(cm) {\n    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;\n    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);\n    return function (line) {\n      if (lineIsHidden(cm.doc, line)) { return 0 }\n\n      var widgetsHeight = 0;\n      if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {\n        if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }\n      } }\n\n      if (wrapping)\n        { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }\n      else\n        { return widgetsHeight + th }\n    }\n  }\n\n  function estimateLineHeights(cm) {\n    var doc = cm.doc, est = estimateHeight(cm);\n    doc.iter(function (line) {\n      var estHeight = est(line);\n      if (estHeight != line.height) { updateLineHeight(line, estHeight); }\n    });\n  }\n\n  // Given a mouse event, find the corresponding position. If liberal\n  // is false, it checks whether a gutter or scrollbar was clicked,\n  // and returns null if it was. forRect is used by rectangular\n  // selections, and tries to estimate a character position even for\n  // coordinates beyond the right of the text.\n  function posFromMouse(cm, e, liberal, forRect) {\n    var display = cm.display;\n    if (!liberal && e_target(e).getAttribute(\"cm-not-content\") == \"true\") { return null }\n\n    var x, y, space = display.lineSpace.getBoundingClientRect();\n    // Fails unpredictably on IE[67] when mouse is dragged around quickly.\n    try { x = e.clientX - space.left; y = e.clientY - space.top; }\n    catch (e) { return null }\n    var coords = coordsChar(cm, x, y), line;\n    if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {\n      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;\n      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));\n    }\n    return coords\n  }\n\n  // Find the view element corresponding to a given line. Return null\n  // when the line isn't visible.\n  function findViewIndex(cm, n) {\n    if (n >= cm.display.viewTo) { return null }\n    n -= cm.display.viewFrom;\n    if (n < 0) { return null }\n    var view = cm.display.view;\n    for (var i = 0; i < view.length; i++) {\n      n -= view[i].size;\n      if (n < 0) { return i }\n    }\n  }\n\n  // Updates the display.view data structure for a given change to the\n  // document. From and to are in pre-change coordinates. Lendiff is\n  // the amount of lines added or subtracted by the change. This is\n  // used for changes that span multiple lines, or change the way\n  // lines are divided into visual lines. regLineChange (below)\n  // registers single-line changes.\n  function regChange(cm, from, to, lendiff) {\n    if (from == null) { from = cm.doc.first; }\n    if (to == null) { to = cm.doc.first + cm.doc.size; }\n    if (!lendiff) { lendiff = 0; }\n\n    var display = cm.display;\n    if (lendiff && to < display.viewTo &&\n        (display.updateLineNumbers == null || display.updateLineNumbers > from))\n      { display.updateLineNumbers = from; }\n\n    cm.curOp.viewChanged = true;\n\n    if (from >= display.viewTo) { // Change after\n      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)\n        { resetView(cm); }\n    } else if (to <= display.viewFrom) { // Change before\n      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {\n        resetView(cm);\n      } else {\n        display.viewFrom += lendiff;\n        display.viewTo += lendiff;\n      }\n    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap\n      resetView(cm);\n    } else if (from <= display.viewFrom) { // Top overlap\n      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);\n      if (cut) {\n        display.view = display.view.slice(cut.index);\n        display.viewFrom = cut.lineN;\n        display.viewTo += lendiff;\n      } else {\n        resetView(cm);\n      }\n    } else if (to >= display.viewTo) { // Bottom overlap\n      var cut$1 = viewCuttingPoint(cm, from, from, -1);\n      if (cut$1) {\n        display.view = display.view.slice(0, cut$1.index);\n        display.viewTo = cut$1.lineN;\n      } else {\n        resetView(cm);\n      }\n    } else { // Gap in the middle\n      var cutTop = viewCuttingPoint(cm, from, from, -1);\n      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);\n      if (cutTop && cutBot) {\n        display.view = display.view.slice(0, cutTop.index)\n          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))\n          .concat(display.view.slice(cutBot.index));\n        display.viewTo += lendiff;\n      } else {\n        resetView(cm);\n      }\n    }\n\n    var ext = display.externalMeasured;\n    if (ext) {\n      if (to < ext.lineN)\n        { ext.lineN += lendiff; }\n      else if (from < ext.lineN + ext.size)\n        { display.externalMeasured = null; }\n    }\n  }\n\n  // Register a change to a single line. Type must be one of \"text\",\n  // \"gutter\", \"class\", \"widget\"\n  function regLineChange(cm, line, type) {\n    cm.curOp.viewChanged = true;\n    var display = cm.display, ext = cm.display.externalMeasured;\n    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)\n      { display.externalMeasured = null; }\n\n    if (line < display.viewFrom || line >= display.viewTo) { return }\n    var lineView = display.view[findViewIndex(cm, line)];\n    if (lineView.node == null) { return }\n    var arr = lineView.changes || (lineView.changes = []);\n    if (indexOf(arr, type) == -1) { arr.push(type); }\n  }\n\n  // Clear the view.\n  function resetView(cm) {\n    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;\n    cm.display.view = [];\n    cm.display.viewOffset = 0;\n  }\n\n  function viewCuttingPoint(cm, oldN, newN, dir) {\n    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;\n    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)\n      { return {index: index, lineN: newN} }\n    var n = cm.display.viewFrom;\n    for (var i = 0; i < index; i++)\n      { n += view[i].size; }\n    if (n != oldN) {\n      if (dir > 0) {\n        if (index == view.length - 1) { return null }\n        diff = (n + view[index].size) - oldN;\n        index++;\n      } else {\n        diff = n - oldN;\n      }\n      oldN += diff; newN += diff;\n    }\n    while (visualLineNo(cm.doc, newN) != newN) {\n      if (index == (dir < 0 ? 0 : view.length - 1)) { return null }\n      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;\n      index += dir;\n    }\n    return {index: index, lineN: newN}\n  }\n\n  // Force the view to cover a given range, adding empty view element\n  // or clipping off existing ones as needed.\n  function adjustView(cm, from, to) {\n    var display = cm.display, view = display.view;\n    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {\n      display.view = buildViewArray(cm, from, to);\n      display.viewFrom = from;\n    } else {\n      if (display.viewFrom > from)\n        { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }\n      else if (display.viewFrom < from)\n        { display.view = display.view.slice(findViewIndex(cm, from)); }\n      display.viewFrom = from;\n      if (display.viewTo < to)\n        { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }\n      else if (display.viewTo > to)\n        { display.view = display.view.slice(0, findViewIndex(cm, to)); }\n    }\n    display.viewTo = to;\n  }\n\n  // Count the number of lines in the view whose DOM representation is\n  // out of date (or nonexistent).\n  function countDirtyView(cm) {\n    var view = cm.display.view, dirty = 0;\n    for (var i = 0; i < view.length; i++) {\n      var lineView = view[i];\n      if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }\n    }\n    return dirty\n  }\n\n  function updateSelection(cm) {\n    cm.display.input.showSelection(cm.display.input.prepareSelection());\n  }\n\n  function prepareSelection(cm, primary) {\n    if ( primary === void 0 ) primary = true;\n\n    var doc = cm.doc, result = {};\n    var curFragment = result.cursors = document.createDocumentFragment();\n    var selFragment = result.selection = document.createDocumentFragment();\n\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\n      if (!primary && i == doc.sel.primIndex) { continue }\n      var range$$1 = doc.sel.ranges[i];\n      if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue }\n      var collapsed = range$$1.empty();\n      if (collapsed || cm.options.showCursorWhenSelecting)\n        { drawSelectionCursor(cm, range$$1.head, curFragment); }\n      if (!collapsed)\n        { drawSelectionRange(cm, range$$1, selFragment); }\n    }\n    return result\n  }\n\n  // Draws a cursor for the given range\n  function drawSelectionCursor(cm, head, output) {\n    var pos = cursorCoords(cm, head, \"div\", null, null, !cm.options.singleCursorHeightPerLine);\n\n    var cursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor\"));\n    cursor.style.left = pos.left + \"px\";\n    cursor.style.top = pos.top + \"px\";\n    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + \"px\";\n\n    if (pos.other) {\n      // Secondary cursor, shown when on a 'jump' in bi-directional text\n      var otherCursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor CodeMirror-secondarycursor\"));\n      otherCursor.style.display = \"\";\n      otherCursor.style.left = pos.other.left + \"px\";\n      otherCursor.style.top = pos.other.top + \"px\";\n      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + \"px\";\n    }\n  }\n\n  function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }\n\n  // Draws the given range as a highlighted selection\n  function drawSelectionRange(cm, range$$1, output) {\n    var display = cm.display, doc = cm.doc;\n    var fragment = document.createDocumentFragment();\n    var padding = paddingH(cm.display), leftSide = padding.left;\n    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;\n    var docLTR = doc.direction == \"ltr\";\n\n    function add(left, top, width, bottom) {\n      if (top < 0) { top = 0; }\n      top = Math.round(top);\n      bottom = Math.round(bottom);\n      fragment.appendChild(elt(\"div\", null, \"CodeMirror-selected\", (\"position: absolute; left: \" + left + \"px;\\n                             top: \" + top + \"px; width: \" + (width == null ? rightSide - left : width) + \"px;\\n                             height: \" + (bottom - top) + \"px\")));\n    }\n\n    function drawForLine(line, fromArg, toArg) {\n      var lineObj = getLine(doc, line);\n      var lineLen = lineObj.text.length;\n      var start, end;\n      function coords(ch, bias) {\n        return charCoords(cm, Pos(line, ch), \"div\", lineObj, bias)\n      }\n\n      function wrapX(pos, dir, side) {\n        var extent = wrappedLineExtentChar(cm, lineObj, null, pos);\n        var prop = (dir == \"ltr\") == (side == \"after\") ? \"left\" : \"right\";\n        var ch = side == \"after\" ? extent.begin : extent.end - (/\\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);\n        return coords(ch, prop)[prop]\n      }\n\n      var order = getOrder(lineObj, doc.direction);\n      iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {\n        var ltr = dir == \"ltr\";\n        var fromPos = coords(from, ltr ? \"left\" : \"right\");\n        var toPos = coords(to - 1, ltr ? \"right\" : \"left\");\n\n        var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;\n        var first = i == 0, last = !order || i == order.length - 1;\n        if (toPos.top - fromPos.top <= 3) { // Single line\n          var openLeft = (docLTR ? openStart : openEnd) && first;\n          var openRight = (docLTR ? openEnd : openStart) && last;\n          var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;\n          var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;\n          add(left, fromPos.top, right - left, fromPos.bottom);\n        } else { // Multiple lines\n          var topLeft, topRight, botLeft, botRight;\n          if (ltr) {\n            topLeft = docLTR && openStart && first ? leftSide : fromPos.left;\n            topRight = docLTR ? rightSide : wrapX(from, dir, \"before\");\n            botLeft = docLTR ? leftSide : wrapX(to, dir, \"after\");\n            botRight = docLTR && openEnd && last ? rightSide : toPos.right;\n          } else {\n            topLeft = !docLTR ? leftSide : wrapX(from, dir, \"before\");\n            topRight = !docLTR && openStart && first ? rightSide : fromPos.right;\n            botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;\n            botRight = !docLTR ? rightSide : wrapX(to, dir, \"after\");\n          }\n          add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);\n          if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }\n          add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);\n        }\n\n        if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }\n        if (cmpCoords(toPos, start) < 0) { start = toPos; }\n        if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }\n        if (cmpCoords(toPos, end) < 0) { end = toPos; }\n      });\n      return {start: start, end: end}\n    }\n\n    var sFrom = range$$1.from(), sTo = range$$1.to();\n    if (sFrom.line == sTo.line) {\n      drawForLine(sFrom.line, sFrom.ch, sTo.ch);\n    } else {\n      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);\n      var singleVLine = visualLine(fromLine) == visualLine(toLine);\n      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;\n      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;\n      if (singleVLine) {\n        if (leftEnd.top < rightStart.top - 2) {\n          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);\n          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);\n        } else {\n          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);\n        }\n      }\n      if (leftEnd.bottom < rightStart.top)\n        { add(leftSide, leftEnd.bottom, null, rightStart.top); }\n    }\n\n    output.appendChild(fragment);\n  }\n\n  // Cursor-blinking\n  function restartBlink(cm) {\n    if (!cm.state.focused) { return }\n    var display = cm.display;\n    clearInterval(display.blinker);\n    var on = true;\n    display.cursorDiv.style.visibility = \"\";\n    if (cm.options.cursorBlinkRate > 0)\n      { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? \"\" : \"hidden\"; },\n        cm.options.cursorBlinkRate); }\n    else if (cm.options.cursorBlinkRate < 0)\n      { display.cursorDiv.style.visibility = \"hidden\"; }\n  }\n\n  function ensureFocus(cm) {\n    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }\n  }\n\n  function delayBlurEvent(cm) {\n    cm.state.delayingBlurEvent = true;\n    setTimeout(function () { if (cm.state.delayingBlurEvent) {\n      cm.state.delayingBlurEvent = false;\n      onBlur(cm);\n    } }, 100);\n  }\n\n  function onFocus(cm, e) {\n    if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }\n\n    if (cm.options.readOnly == \"nocursor\") { return }\n    if (!cm.state.focused) {\n      signal(cm, \"focus\", cm, e);\n      cm.state.focused = true;\n      addClass(cm.display.wrapper, \"CodeMirror-focused\");\n      // This test prevents this from firing when a context\n      // menu is closed (since the input reset would kill the\n      // select-all detection hack)\n      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {\n        cm.display.input.reset();\n        if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730\n      }\n      cm.display.input.receivedFocus();\n    }\n    restartBlink(cm);\n  }\n  function onBlur(cm, e) {\n    if (cm.state.delayingBlurEvent) { return }\n\n    if (cm.state.focused) {\n      signal(cm, \"blur\", cm, e);\n      cm.state.focused = false;\n      rmClass(cm.display.wrapper, \"CodeMirror-focused\");\n    }\n    clearInterval(cm.display.blinker);\n    setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);\n  }\n\n  // Read the actual heights of the rendered lines, and update their\n  // stored heights to match.\n  function updateHeightsInViewport(cm) {\n    var display = cm.display;\n    var prevBottom = display.lineDiv.offsetTop;\n    for (var i = 0; i < display.view.length; i++) {\n      var cur = display.view[i], wrapping = cm.options.lineWrapping;\n      var height = (void 0), width = 0;\n      if (cur.hidden) { continue }\n      if (ie && ie_version < 8) {\n        var bot = cur.node.offsetTop + cur.node.offsetHeight;\n        height = bot - prevBottom;\n        prevBottom = bot;\n      } else {\n        var box = cur.node.getBoundingClientRect();\n        height = box.bottom - box.top;\n        // Check that lines don't extend past the right of the current\n        // editor width\n        if (!wrapping && cur.text.firstChild)\n          { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }\n      }\n      var diff = cur.line.height - height;\n      if (diff > .005 || diff < -.005) {\n        updateLineHeight(cur.line, height);\n        updateWidgetHeight(cur.line);\n        if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)\n          { updateWidgetHeight(cur.rest[j]); } }\n      }\n      if (width > cm.display.sizerWidth) {\n        var chWidth = Math.ceil(width / charWidth(cm.display));\n        if (chWidth > cm.display.maxLineLength) {\n          cm.display.maxLineLength = chWidth;\n          cm.display.maxLine = cur.line;\n          cm.display.maxLineChanged = true;\n        }\n      }\n    }\n  }\n\n  // Read and store the height of line widgets associated with the\n  // given line.\n  function updateWidgetHeight(line) {\n    if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {\n      var w = line.widgets[i], parent = w.node.parentNode;\n      if (parent) { w.height = parent.offsetHeight; }\n    } }\n  }\n\n  // Compute the lines that are visible in a given viewport (defaults\n  // the the current scroll position). viewport may contain top,\n  // height, and ensure (see op.scrollToPos) properties.\n  function visibleLines(display, doc, viewport) {\n    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;\n    top = Math.floor(top - paddingTop(display));\n    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;\n\n    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);\n    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and\n    // forces those lines into the viewport (if possible).\n    if (viewport && viewport.ensure) {\n      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;\n      if (ensureFrom < from) {\n        from = ensureFrom;\n        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);\n      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {\n        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);\n        to = ensureTo;\n      }\n    }\n    return {from: from, to: Math.max(to, from + 1)}\n  }\n\n  // SCROLLING THINGS INTO VIEW\n\n  // If an editor sits on the top or bottom of the window, partially\n  // scrolled out of view, this ensures that the cursor is visible.\n  function maybeScrollWindow(cm, rect) {\n    if (signalDOMEvent(cm, \"scrollCursorIntoView\")) { return }\n\n    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;\n    if (rect.top + box.top < 0) { doScroll = true; }\n    else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }\n    if (doScroll != null && !phantom) {\n      var scrollNode = elt(\"div\", \"\\u200b\", null, (\"position: absolute;\\n                         top: \" + (rect.top - display.viewOffset - paddingTop(cm.display)) + \"px;\\n                         height: \" + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + \"px;\\n                         left: \" + (rect.left) + \"px; width: \" + (Math.max(2, rect.right - rect.left)) + \"px;\"));\n      cm.display.lineSpace.appendChild(scrollNode);\n      scrollNode.scrollIntoView(doScroll);\n      cm.display.lineSpace.removeChild(scrollNode);\n    }\n  }\n\n  // Scroll a given position into view (immediately), verifying that\n  // it actually became visible (as line heights are accurately\n  // measured, the position of something may 'drift' during drawing).\n  function scrollPosIntoView(cm, pos, end, margin) {\n    if (margin == null) { margin = 0; }\n    var rect;\n    if (!cm.options.lineWrapping && pos == end) {\n      // Set pos and end to the cursor positions around the character pos sticks to\n      // If pos.sticky == \"before\", that is around pos.ch - 1, otherwise around pos.ch\n      // If pos == Pos(_, 0, \"before\"), pos and end are unchanged\n      pos = pos.ch ? Pos(pos.line, pos.sticky == \"before\" ? pos.ch - 1 : pos.ch, \"after\") : pos;\n      end = pos.sticky == \"before\" ? Pos(pos.line, pos.ch + 1, \"before\") : pos;\n    }\n    for (var limit = 0; limit < 5; limit++) {\n      var changed = false;\n      var coords = cursorCoords(cm, pos);\n      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);\n      rect = {left: Math.min(coords.left, endCoords.left),\n              top: Math.min(coords.top, endCoords.top) - margin,\n              right: Math.max(coords.left, endCoords.left),\n              bottom: Math.max(coords.bottom, endCoords.bottom) + margin};\n      var scrollPos = calculateScrollPos(cm, rect);\n      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;\n      if (scrollPos.scrollTop != null) {\n        updateScrollTop(cm, scrollPos.scrollTop);\n        if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }\n      }\n      if (scrollPos.scrollLeft != null) {\n        setScrollLeft(cm, scrollPos.scrollLeft);\n        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }\n      }\n      if (!changed) { break }\n    }\n    return rect\n  }\n\n  // Scroll a given set of coordinates into view (immediately).\n  function scrollIntoView(cm, rect) {\n    var scrollPos = calculateScrollPos(cm, rect);\n    if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }\n    if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }\n  }\n\n  // Calculate a new scroll position needed to scroll the given\n  // rectangle into view. Returns an object with scrollTop and\n  // scrollLeft properties. When these are undefined, the\n  // vertical/horizontal position does not need to be adjusted.\n  function calculateScrollPos(cm, rect) {\n    var display = cm.display, snapMargin = textHeight(cm.display);\n    if (rect.top < 0) { rect.top = 0; }\n    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;\n    var screen = displayHeight(cm), result = {};\n    if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }\n    var docBottom = cm.doc.height + paddingVert(display);\n    var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;\n    if (rect.top < screentop) {\n      result.scrollTop = atTop ? 0 : rect.top;\n    } else if (rect.bottom > screentop + screen) {\n      var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);\n      if (newTop != screentop) { result.scrollTop = newTop; }\n    }\n\n    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;\n    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);\n    var tooWide = rect.right - rect.left > screenw;\n    if (tooWide) { rect.right = rect.left + screenw; }\n    if (rect.left < 10)\n      { result.scrollLeft = 0; }\n    else if (rect.left < screenleft)\n      { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); }\n    else if (rect.right > screenw + screenleft - 3)\n      { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }\n    return result\n  }\n\n  // Store a relative adjustment to the scroll position in the current\n  // operation (to be applied when the operation finishes).\n  function addToScrollTop(cm, top) {\n    if (top == null) { return }\n    resolveScrollToPos(cm);\n    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;\n  }\n\n  // Make sure that at the end of the operation the current cursor is\n  // shown.\n  function ensureCursorVisible(cm) {\n    resolveScrollToPos(cm);\n    var cur = cm.getCursor();\n    cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};\n  }\n\n  function scrollToCoords(cm, x, y) {\n    if (x != null || y != null) { resolveScrollToPos(cm); }\n    if (x != null) { cm.curOp.scrollLeft = x; }\n    if (y != null) { cm.curOp.scrollTop = y; }\n  }\n\n  function scrollToRange(cm, range$$1) {\n    resolveScrollToPos(cm);\n    cm.curOp.scrollToPos = range$$1;\n  }\n\n  // When an operation has its scrollToPos property set, and another\n  // scroll action is applied before the end of the operation, this\n  // 'simulates' scrolling that position into view in a cheap way, so\n  // that the effect of intermediate scroll commands is not ignored.\n  function resolveScrollToPos(cm) {\n    var range$$1 = cm.curOp.scrollToPos;\n    if (range$$1) {\n      cm.curOp.scrollToPos = null;\n      var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to);\n      scrollToCoordsRange(cm, from, to, range$$1.margin);\n    }\n  }\n\n  function scrollToCoordsRange(cm, from, to, margin) {\n    var sPos = calculateScrollPos(cm, {\n      left: Math.min(from.left, to.left),\n      top: Math.min(from.top, to.top) - margin,\n      right: Math.max(from.right, to.right),\n      bottom: Math.max(from.bottom, to.bottom) + margin\n    });\n    scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);\n  }\n\n  // Sync the scrollable area and scrollbars, ensure the viewport\n  // covers the visible area.\n  function updateScrollTop(cm, val) {\n    if (Math.abs(cm.doc.scrollTop - val) < 2) { return }\n    if (!gecko) { updateDisplaySimple(cm, {top: val}); }\n    setScrollTop(cm, val, true);\n    if (gecko) { updateDisplaySimple(cm); }\n    startWorker(cm, 100);\n  }\n\n  function setScrollTop(cm, val, forceScroll) {\n    val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val);\n    if (cm.display.scroller.scrollTop == val && !forceScroll) { return }\n    cm.doc.scrollTop = val;\n    cm.display.scrollbars.setScrollTop(val);\n    if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }\n  }\n\n  // Sync scroller and scrollbar, ensure the gutter elements are\n  // aligned.\n  function setScrollLeft(cm, val, isScroller, forceScroll) {\n    val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);\n    if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }\n    cm.doc.scrollLeft = val;\n    alignHorizontally(cm);\n    if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }\n    cm.display.scrollbars.setScrollLeft(val);\n  }\n\n  // SCROLLBARS\n\n  // Prepare DOM reads needed to update the scrollbars. Done in one\n  // shot to minimize update/measure roundtrips.\n  function measureForScrollbars(cm) {\n    var d = cm.display, gutterW = d.gutters.offsetWidth;\n    var docH = Math.round(cm.doc.height + paddingVert(cm.display));\n    return {\n      clientHeight: d.scroller.clientHeight,\n      viewHeight: d.wrapper.clientHeight,\n      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,\n      viewWidth: d.wrapper.clientWidth,\n      barLeft: cm.options.fixedGutter ? gutterW : 0,\n      docHeight: docH,\n      scrollHeight: docH + scrollGap(cm) + d.barHeight,\n      nativeBarWidth: d.nativeBarWidth,\n      gutterWidth: gutterW\n    }\n  }\n\n  var NativeScrollbars = function(place, scroll, cm) {\n    this.cm = cm;\n    var vert = this.vert = elt(\"div\", [elt(\"div\", null, null, \"min-width: 1px\")], \"CodeMirror-vscrollbar\");\n    var horiz = this.horiz = elt(\"div\", [elt(\"div\", null, null, \"height: 100%; min-height: 1px\")], \"CodeMirror-hscrollbar\");\n    vert.tabIndex = horiz.tabIndex = -1;\n    place(vert); place(horiz);\n\n    on(vert, \"scroll\", function () {\n      if (vert.clientHeight) { scroll(vert.scrollTop, \"vertical\"); }\n    });\n    on(horiz, \"scroll\", function () {\n      if (horiz.clientWidth) { scroll(horiz.scrollLeft, \"horizontal\"); }\n    });\n\n    this.checkedZeroWidth = false;\n    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).\n    if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = \"18px\"; }\n  };\n\n  NativeScrollbars.prototype.update = function (measure) {\n    var needsH = measure.scrollWidth > measure.clientWidth + 1;\n    var needsV = measure.scrollHeight > measure.clientHeight + 1;\n    var sWidth = measure.nativeBarWidth;\n\n    if (needsV) {\n      this.vert.style.display = \"block\";\n      this.vert.style.bottom = needsH ? sWidth + \"px\" : \"0\";\n      var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);\n      // A bug in IE8 can cause this value to be negative, so guard it.\n      this.vert.firstChild.style.height =\n        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + \"px\";\n    } else {\n      this.vert.style.display = \"\";\n      this.vert.firstChild.style.height = \"0\";\n    }\n\n    if (needsH) {\n      this.horiz.style.display = \"block\";\n      this.horiz.style.right = needsV ? sWidth + \"px\" : \"0\";\n      this.horiz.style.left = measure.barLeft + \"px\";\n      var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);\n      this.horiz.firstChild.style.width =\n        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + \"px\";\n    } else {\n      this.horiz.style.display = \"\";\n      this.horiz.firstChild.style.width = \"0\";\n    }\n\n    if (!this.checkedZeroWidth && measure.clientHeight > 0) {\n      if (sWidth == 0) { this.zeroWidthHack(); }\n      this.checkedZeroWidth = true;\n    }\n\n    return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}\n  };\n\n  NativeScrollbars.prototype.setScrollLeft = function (pos) {\n    if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }\n    if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, \"horiz\"); }\n  };\n\n  NativeScrollbars.prototype.setScrollTop = function (pos) {\n    if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }\n    if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, \"vert\"); }\n  };\n\n  NativeScrollbars.prototype.zeroWidthHack = function () {\n    var w = mac && !mac_geMountainLion ? \"12px\" : \"18px\";\n    this.horiz.style.height = this.vert.style.width = w;\n    this.horiz.style.pointerEvents = this.vert.style.pointerEvents = \"none\";\n    this.disableHoriz = new Delayed;\n    this.disableVert = new Delayed;\n  };\n\n  NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {\n    bar.style.pointerEvents = \"auto\";\n    function maybeDisable() {\n      // To find out whether the scrollbar is still visible, we\n      // check whether the element under the pixel in the bottom\n      // right corner of the scrollbar box is the scrollbar box\n      // itself (when the bar is still visible) or its filler child\n      // (when the bar is hidden). If it is still visible, we keep\n      // it enabled, if it's hidden, we disable pointer events.\n      var box = bar.getBoundingClientRect();\n      var elt$$1 = type == \"vert\" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)\n          : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);\n      if (elt$$1 != bar) { bar.style.pointerEvents = \"none\"; }\n      else { delay.set(1000, maybeDisable); }\n    }\n    delay.set(1000, maybeDisable);\n  };\n\n  NativeScrollbars.prototype.clear = function () {\n    var parent = this.horiz.parentNode;\n    parent.removeChild(this.horiz);\n    parent.removeChild(this.vert);\n  };\n\n  var NullScrollbars = function () {};\n\n  NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };\n  NullScrollbars.prototype.setScrollLeft = function () {};\n  NullScrollbars.prototype.setScrollTop = function () {};\n  NullScrollbars.prototype.clear = function () {};\n\n  function updateScrollbars(cm, measure) {\n    if (!measure) { measure = measureForScrollbars(cm); }\n    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;\n    updateScrollbarsInner(cm, measure);\n    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {\n      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)\n        { updateHeightsInViewport(cm); }\n      updateScrollbarsInner(cm, measureForScrollbars(cm));\n      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;\n    }\n  }\n\n  // Re-synchronize the fake scrollbars with the actual size of the\n  // content.\n  function updateScrollbarsInner(cm, measure) {\n    var d = cm.display;\n    var sizes = d.scrollbars.update(measure);\n\n    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + \"px\";\n    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + \"px\";\n    d.heightForcer.style.borderBottom = sizes.bottom + \"px solid transparent\";\n\n    if (sizes.right && sizes.bottom) {\n      d.scrollbarFiller.style.display = \"block\";\n      d.scrollbarFiller.style.height = sizes.bottom + \"px\";\n      d.scrollbarFiller.style.width = sizes.right + \"px\";\n    } else { d.scrollbarFiller.style.display = \"\"; }\n    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {\n      d.gutterFiller.style.display = \"block\";\n      d.gutterFiller.style.height = sizes.bottom + \"px\";\n      d.gutterFiller.style.width = measure.gutterWidth + \"px\";\n    } else { d.gutterFiller.style.display = \"\"; }\n  }\n\n  var scrollbarModel = {\"native\": NativeScrollbars, \"null\": NullScrollbars};\n\n  function initScrollbars(cm) {\n    if (cm.display.scrollbars) {\n      cm.display.scrollbars.clear();\n      if (cm.display.scrollbars.addClass)\n        { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }\n    }\n\n    cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {\n      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);\n      // Prevent clicks in the scrollbars from killing focus\n      on(node, \"mousedown\", function () {\n        if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }\n      });\n      node.setAttribute(\"cm-not-content\", \"true\");\n    }, function (pos, axis) {\n      if (axis == \"horizontal\") { setScrollLeft(cm, pos); }\n      else { updateScrollTop(cm, pos); }\n    }, cm);\n    if (cm.display.scrollbars.addClass)\n      { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }\n  }\n\n  // Operations are used to wrap a series of changes to the editor\n  // state in such a way that each change won't have to update the\n  // cursor and display (which would be awkward, slow, and\n  // error-prone). Instead, display updates are batched and then all\n  // combined and executed at once.\n\n  var nextOpId = 0;\n  // Start a new operation.\n  function startOperation(cm) {\n    cm.curOp = {\n      cm: cm,\n      viewChanged: false,      // Flag that indicates that lines might need to be redrawn\n      startHeight: cm.doc.height, // Used to detect need to update scrollbar\n      forceUpdate: false,      // Used to force a redraw\n      updateInput: 0,       // Whether to reset the input textarea\n      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)\n      changeObjs: null,        // Accumulated changes, for firing change events\n      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on\n      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already\n      selectionChanged: false, // Whether the selection needs to be redrawn\n      updateMaxLine: false,    // Set when the widest line needs to be determined anew\n      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet\n      scrollToPos: null,       // Used to scroll to a specific position\n      focus: false,\n      id: ++nextOpId           // Unique ID\n    };\n    pushOperation(cm.curOp);\n  }\n\n  // Finish an operation, updating the display and signalling delayed events\n  function endOperation(cm) {\n    var op = cm.curOp;\n    if (op) { finishOperation(op, function (group) {\n      for (var i = 0; i < group.ops.length; i++)\n        { group.ops[i].cm.curOp = null; }\n      endOperations(group);\n    }); }\n  }\n\n  // The DOM updates done when an operation finishes are batched so\n  // that the minimum number of relayouts are required.\n  function endOperations(group) {\n    var ops = group.ops;\n    for (var i = 0; i < ops.length; i++) // Read DOM\n      { endOperation_R1(ops[i]); }\n    for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)\n      { endOperation_W1(ops[i$1]); }\n    for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM\n      { endOperation_R2(ops[i$2]); }\n    for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)\n      { endOperation_W2(ops[i$3]); }\n    for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM\n      { endOperation_finish(ops[i$4]); }\n  }\n\n  function endOperation_R1(op) {\n    var cm = op.cm, display = cm.display;\n    maybeClipScrollbars(cm);\n    if (op.updateMaxLine) { findMaxLine(cm); }\n\n    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||\n      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||\n                         op.scrollToPos.to.line >= display.viewTo) ||\n      display.maxLineChanged && cm.options.lineWrapping;\n    op.update = op.mustUpdate &&\n      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);\n  }\n\n  function endOperation_W1(op) {\n    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);\n  }\n\n  function endOperation_R2(op) {\n    var cm = op.cm, display = cm.display;\n    if (op.updatedDisplay) { updateHeightsInViewport(cm); }\n\n    op.barMeasure = measureForScrollbars(cm);\n\n    // If the max line changed since it was last measured, measure it,\n    // and ensure the document's width matches it.\n    // updateDisplay_W2 will use these properties to do the actual resizing\n    if (display.maxLineChanged && !cm.options.lineWrapping) {\n      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;\n      cm.display.sizerWidth = op.adjustWidthTo;\n      op.barMeasure.scrollWidth =\n        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);\n      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));\n    }\n\n    if (op.updatedDisplay || op.selectionChanged)\n      { op.preparedSelection = display.input.prepareSelection(); }\n  }\n\n  function endOperation_W2(op) {\n    var cm = op.cm;\n\n    if (op.adjustWidthTo != null) {\n      cm.display.sizer.style.minWidth = op.adjustWidthTo + \"px\";\n      if (op.maxScrollLeft < cm.doc.scrollLeft)\n        { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }\n      cm.display.maxLineChanged = false;\n    }\n\n    var takeFocus = op.focus && op.focus == activeElt();\n    if (op.preparedSelection)\n      { cm.display.input.showSelection(op.preparedSelection, takeFocus); }\n    if (op.updatedDisplay || op.startHeight != cm.doc.height)\n      { updateScrollbars(cm, op.barMeasure); }\n    if (op.updatedDisplay)\n      { setDocumentHeight(cm, op.barMeasure); }\n\n    if (op.selectionChanged) { restartBlink(cm); }\n\n    if (cm.state.focused && op.updateInput)\n      { cm.display.input.reset(op.typing); }\n    if (takeFocus) { ensureFocus(op.cm); }\n  }\n\n  function endOperation_finish(op) {\n    var cm = op.cm, display = cm.display, doc = cm.doc;\n\n    if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }\n\n    // Abort mouse wheel delta measurement, when scrolling explicitly\n    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))\n      { display.wheelStartX = display.wheelStartY = null; }\n\n    // Propagate the scroll position to the actual DOM scroller\n    if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }\n\n    if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }\n    // If we need to scroll a specific position into view, do so.\n    if (op.scrollToPos) {\n      var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),\n                                   clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);\n      maybeScrollWindow(cm, rect);\n    }\n\n    // Fire events for markers that are hidden/unidden by editing or\n    // undoing\n    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;\n    if (hidden) { for (var i = 0; i < hidden.length; ++i)\n      { if (!hidden[i].lines.length) { signal(hidden[i], \"hide\"); } } }\n    if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)\n      { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], \"unhide\"); } } }\n\n    if (display.wrapper.offsetHeight)\n      { doc.scrollTop = cm.display.scroller.scrollTop; }\n\n    // Fire change events, and delayed event handlers\n    if (op.changeObjs)\n      { signal(cm, \"changes\", cm, op.changeObjs); }\n    if (op.update)\n      { op.update.finish(); }\n  }\n\n  // Run the given function in an operation\n  function runInOp(cm, f) {\n    if (cm.curOp) { return f() }\n    startOperation(cm);\n    try { return f() }\n    finally { endOperation(cm); }\n  }\n  // Wraps a function in an operation. Returns the wrapped function.\n  function operation(cm, f) {\n    return function() {\n      if (cm.curOp) { return f.apply(cm, arguments) }\n      startOperation(cm);\n      try { return f.apply(cm, arguments) }\n      finally { endOperation(cm); }\n    }\n  }\n  // Used to add methods to editor and doc instances, wrapping them in\n  // operations.\n  function methodOp(f) {\n    return function() {\n      if (this.curOp) { return f.apply(this, arguments) }\n      startOperation(this);\n      try { return f.apply(this, arguments) }\n      finally { endOperation(this); }\n    }\n  }\n  function docMethodOp(f) {\n    return function() {\n      var cm = this.cm;\n      if (!cm || cm.curOp) { return f.apply(this, arguments) }\n      startOperation(cm);\n      try { return f.apply(this, arguments) }\n      finally { endOperation(cm); }\n    }\n  }\n\n  // HIGHLIGHT WORKER\n\n  function startWorker(cm, time) {\n    if (cm.doc.highlightFrontier < cm.display.viewTo)\n      { cm.state.highlight.set(time, bind(highlightWorker, cm)); }\n  }\n\n  function highlightWorker(cm) {\n    var doc = cm.doc;\n    if (doc.highlightFrontier >= cm.display.viewTo) { return }\n    var end = +new Date + cm.options.workTime;\n    var context = getContextBefore(cm, doc.highlightFrontier);\n    var changedLines = [];\n\n    doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {\n      if (context.line >= cm.display.viewFrom) { // Visible\n        var oldStyles = line.styles;\n        var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;\n        var highlighted = highlightLine(cm, line, context, true);\n        if (resetState) { context.state = resetState; }\n        line.styles = highlighted.styles;\n        var oldCls = line.styleClasses, newCls = highlighted.classes;\n        if (newCls) { line.styleClasses = newCls; }\n        else if (oldCls) { line.styleClasses = null; }\n        var ischange = !oldStyles || oldStyles.length != line.styles.length ||\n          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);\n        for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }\n        if (ischange) { changedLines.push(context.line); }\n        line.stateAfter = context.save();\n        context.nextLine();\n      } else {\n        if (line.text.length <= cm.options.maxHighlightLength)\n          { processLine(cm, line.text, context); }\n        line.stateAfter = context.line % 5 == 0 ? context.save() : null;\n        context.nextLine();\n      }\n      if (+new Date > end) {\n        startWorker(cm, cm.options.workDelay);\n        return true\n      }\n    });\n    doc.highlightFrontier = context.line;\n    doc.modeFrontier = Math.max(doc.modeFrontier, context.line);\n    if (changedLines.length) { runInOp(cm, function () {\n      for (var i = 0; i < changedLines.length; i++)\n        { regLineChange(cm, changedLines[i], \"text\"); }\n    }); }\n  }\n\n  // DISPLAY DRAWING\n\n  var DisplayUpdate = function(cm, viewport, force) {\n    var display = cm.display;\n\n    this.viewport = viewport;\n    // Store some values that we'll need later (but don't want to force a relayout for)\n    this.visible = visibleLines(display, cm.doc, viewport);\n    this.editorIsHidden = !display.wrapper.offsetWidth;\n    this.wrapperHeight = display.wrapper.clientHeight;\n    this.wrapperWidth = display.wrapper.clientWidth;\n    this.oldDisplayWidth = displayWidth(cm);\n    this.force = force;\n    this.dims = getDimensions(cm);\n    this.events = [];\n  };\n\n  DisplayUpdate.prototype.signal = function (emitter, type) {\n    if (hasHandler(emitter, type))\n      { this.events.push(arguments); }\n  };\n  DisplayUpdate.prototype.finish = function () {\n      var this$1 = this;\n\n    for (var i = 0; i < this.events.length; i++)\n      { signal.apply(null, this$1.events[i]); }\n  };\n\n  function maybeClipScrollbars(cm) {\n    var display = cm.display;\n    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {\n      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;\n      display.heightForcer.style.height = scrollGap(cm) + \"px\";\n      display.sizer.style.marginBottom = -display.nativeBarWidth + \"px\";\n      display.sizer.style.borderRightWidth = scrollGap(cm) + \"px\";\n      display.scrollbarsClipped = true;\n    }\n  }\n\n  function selectionSnapshot(cm) {\n    if (cm.hasFocus()) { return null }\n    var active = activeElt();\n    if (!active || !contains(cm.display.lineDiv, active)) { return null }\n    var result = {activeElt: active};\n    if (window.getSelection) {\n      var sel = window.getSelection();\n      if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {\n        result.anchorNode = sel.anchorNode;\n        result.anchorOffset = sel.anchorOffset;\n        result.focusNode = sel.focusNode;\n        result.focusOffset = sel.focusOffset;\n      }\n    }\n    return result\n  }\n\n  function restoreSelection(snapshot) {\n    if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }\n    snapshot.activeElt.focus();\n    if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {\n      var sel = window.getSelection(), range$$1 = document.createRange();\n      range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset);\n      range$$1.collapse(false);\n      sel.removeAllRanges();\n      sel.addRange(range$$1);\n      sel.extend(snapshot.focusNode, snapshot.focusOffset);\n    }\n  }\n\n  // Does the actual updating of the line display. Bails out\n  // (returning false) when there is nothing to be done and forced is\n  // false.\n  function updateDisplayIfNeeded(cm, update) {\n    var display = cm.display, doc = cm.doc;\n\n    if (update.editorIsHidden) {\n      resetView(cm);\n      return false\n    }\n\n    // Bail out if the visible area is already rendered and nothing changed.\n    if (!update.force &&\n        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&\n        display.renderedView == display.view && countDirtyView(cm) == 0)\n      { return false }\n\n    if (maybeUpdateLineNumberWidth(cm)) {\n      resetView(cm);\n      update.dims = getDimensions(cm);\n    }\n\n    // Compute a suitable new viewport (from & to)\n    var end = doc.first + doc.size;\n    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);\n    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);\n    if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }\n    if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }\n    if (sawCollapsedSpans) {\n      from = visualLineNo(cm.doc, from);\n      to = visualLineEndNo(cm.doc, to);\n    }\n\n    var different = from != display.viewFrom || to != display.viewTo ||\n      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;\n    adjustView(cm, from, to);\n\n    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));\n    // Position the mover div to align with the current scroll position\n    cm.display.mover.style.top = display.viewOffset + \"px\";\n\n    var toUpdate = countDirtyView(cm);\n    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))\n      { return false }\n\n    // For big changes, we hide the enclosing element during the\n    // update, since that speeds up the operations on most browsers.\n    var selSnapshot = selectionSnapshot(cm);\n    if (toUpdate > 4) { display.lineDiv.style.display = \"none\"; }\n    patchDisplay(cm, display.updateLineNumbers, update.dims);\n    if (toUpdate > 4) { display.lineDiv.style.display = \"\"; }\n    display.renderedView = display.view;\n    // There might have been a widget with a focused element that got\n    // hidden or updated, if so re-focus it.\n    restoreSelection(selSnapshot);\n\n    // Prevent selection and cursors from interfering with the scroll\n    // width and height.\n    removeChildren(display.cursorDiv);\n    removeChildren(display.selectionDiv);\n    display.gutters.style.height = display.sizer.style.minHeight = 0;\n\n    if (different) {\n      display.lastWrapHeight = update.wrapperHeight;\n      display.lastWrapWidth = update.wrapperWidth;\n      startWorker(cm, 400);\n    }\n\n    display.updateLineNumbers = null;\n\n    return true\n  }\n\n  function postUpdateDisplay(cm, update) {\n    var viewport = update.viewport;\n\n    for (var first = true;; first = false) {\n      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {\n        // Clip forced viewport to actual scrollable area.\n        if (viewport && viewport.top != null)\n          { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }\n        // Updated line heights might result in the drawn area not\n        // actually covering the viewport. Keep looping until it does.\n        update.visible = visibleLines(cm.display, cm.doc, viewport);\n        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)\n          { break }\n      }\n      if (!updateDisplayIfNeeded(cm, update)) { break }\n      updateHeightsInViewport(cm);\n      var barMeasure = measureForScrollbars(cm);\n      updateSelection(cm);\n      updateScrollbars(cm, barMeasure);\n      setDocumentHeight(cm, barMeasure);\n      update.force = false;\n    }\n\n    update.signal(cm, \"update\", cm);\n    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {\n      update.signal(cm, \"viewportChange\", cm, cm.display.viewFrom, cm.display.viewTo);\n      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;\n    }\n  }\n\n  function updateDisplaySimple(cm, viewport) {\n    var update = new DisplayUpdate(cm, viewport);\n    if (updateDisplayIfNeeded(cm, update)) {\n      updateHeightsInViewport(cm);\n      postUpdateDisplay(cm, update);\n      var barMeasure = measureForScrollbars(cm);\n      updateSelection(cm);\n      updateScrollbars(cm, barMeasure);\n      setDocumentHeight(cm, barMeasure);\n      update.finish();\n    }\n  }\n\n  // Sync the actual display DOM structure with display.view, removing\n  // nodes for lines that are no longer in view, and creating the ones\n  // that are not there yet, and updating the ones that are out of\n  // date.\n  function patchDisplay(cm, updateNumbersFrom, dims) {\n    var display = cm.display, lineNumbers = cm.options.lineNumbers;\n    var container = display.lineDiv, cur = container.firstChild;\n\n    function rm(node) {\n      var next = node.nextSibling;\n      // Works around a throw-scroll bug in OS X Webkit\n      if (webkit && mac && cm.display.currentWheelTarget == node)\n        { node.style.display = \"none\"; }\n      else\n        { node.parentNode.removeChild(node); }\n      return next\n    }\n\n    var view = display.view, lineN = display.viewFrom;\n    // Loop over the elements in the view, syncing cur (the DOM nodes\n    // in display.lineDiv) with the view as we go.\n    for (var i = 0; i < view.length; i++) {\n      var lineView = view[i];\n      if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet\n        var node = buildLineElement(cm, lineView, lineN, dims);\n        container.insertBefore(node, cur);\n      } else { // Already drawn\n        while (cur != lineView.node) { cur = rm(cur); }\n        var updateNumber = lineNumbers && updateNumbersFrom != null &&\n          updateNumbersFrom <= lineN && lineView.lineNumber;\n        if (lineView.changes) {\n          if (indexOf(lineView.changes, \"gutter\") > -1) { updateNumber = false; }\n          updateLineForChanges(cm, lineView, lineN, dims);\n        }\n        if (updateNumber) {\n          removeChildren(lineView.lineNumber);\n          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));\n        }\n        cur = lineView.node.nextSibling;\n      }\n      lineN += lineView.size;\n    }\n    while (cur) { cur = rm(cur); }\n  }\n\n  function updateGutterSpace(display) {\n    var width = display.gutters.offsetWidth;\n    display.sizer.style.marginLeft = width + \"px\";\n  }\n\n  function setDocumentHeight(cm, measure) {\n    cm.display.sizer.style.minHeight = measure.docHeight + \"px\";\n    cm.display.heightForcer.style.top = measure.docHeight + \"px\";\n    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + \"px\";\n  }\n\n  // Re-align line numbers and gutter marks to compensate for\n  // horizontal scrolling.\n  function alignHorizontally(cm) {\n    var display = cm.display, view = display.view;\n    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }\n    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;\n    var gutterW = display.gutters.offsetWidth, left = comp + \"px\";\n    for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {\n      if (cm.options.fixedGutter) {\n        if (view[i].gutter)\n          { view[i].gutter.style.left = left; }\n        if (view[i].gutterBackground)\n          { view[i].gutterBackground.style.left = left; }\n      }\n      var align = view[i].alignable;\n      if (align) { for (var j = 0; j < align.length; j++)\n        { align[j].style.left = left; } }\n    } }\n    if (cm.options.fixedGutter)\n      { display.gutters.style.left = (comp + gutterW) + \"px\"; }\n  }\n\n  // Used to ensure that the line number gutter is still the right\n  // size for the current document size. Returns true when an update\n  // is needed.\n  function maybeUpdateLineNumberWidth(cm) {\n    if (!cm.options.lineNumbers) { return false }\n    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;\n    if (last.length != display.lineNumChars) {\n      var test = display.measure.appendChild(elt(\"div\", [elt(\"div\", last)],\n                                                 \"CodeMirror-linenumber CodeMirror-gutter-elt\"));\n      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;\n      display.lineGutter.style.width = \"\";\n      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;\n      display.lineNumWidth = display.lineNumInnerWidth + padding;\n      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;\n      display.lineGutter.style.width = display.lineNumWidth + \"px\";\n      updateGutterSpace(cm.display);\n      return true\n    }\n    return false\n  }\n\n  function getGutters(gutters, lineNumbers) {\n    var result = [], sawLineNumbers = false;\n    for (var i = 0; i < gutters.length; i++) {\n      var name = gutters[i], style = null;\n      if (typeof name != \"string\") { style = name.style; name = name.className; }\n      if (name == \"CodeMirror-linenumbers\") {\n        if (!lineNumbers) { continue }\n        else { sawLineNumbers = true; }\n      }\n      result.push({className: name, style: style});\n    }\n    if (lineNumbers && !sawLineNumbers) { result.push({className: \"CodeMirror-linenumbers\", style: null}); }\n    return result\n  }\n\n  // Rebuild the gutter elements, ensure the margin to the left of the\n  // code matches their width.\n  function renderGutters(display) {\n    var gutters = display.gutters, specs = display.gutterSpecs;\n    removeChildren(gutters);\n    display.lineGutter = null;\n    for (var i = 0; i < specs.length; ++i) {\n      var ref = specs[i];\n      var className = ref.className;\n      var style = ref.style;\n      var gElt = gutters.appendChild(elt(\"div\", null, \"CodeMirror-gutter \" + className));\n      if (style) { gElt.style.cssText = style; }\n      if (className == \"CodeMirror-linenumbers\") {\n        display.lineGutter = gElt;\n        gElt.style.width = (display.lineNumWidth || 1) + \"px\";\n      }\n    }\n    gutters.style.display = specs.length ? \"\" : \"none\";\n    updateGutterSpace(display);\n  }\n\n  function updateGutters(cm) {\n    renderGutters(cm.display);\n    regChange(cm);\n    alignHorizontally(cm);\n  }\n\n  // The display handles the DOM integration, both for input reading\n  // and content drawing. It holds references to DOM nodes and\n  // display-related state.\n\n  function Display(place, doc, input, options) {\n    var d = this;\n    this.input = input;\n\n    // Covers bottom-right square when both scrollbars are present.\n    d.scrollbarFiller = elt(\"div\", null, \"CodeMirror-scrollbar-filler\");\n    d.scrollbarFiller.setAttribute(\"cm-not-content\", \"true\");\n    // Covers bottom of gutter when coverGutterNextToScrollbar is on\n    // and h scrollbar is present.\n    d.gutterFiller = elt(\"div\", null, \"CodeMirror-gutter-filler\");\n    d.gutterFiller.setAttribute(\"cm-not-content\", \"true\");\n    // Will contain the actual code, positioned to cover the viewport.\n    d.lineDiv = eltP(\"div\", null, \"CodeMirror-code\");\n    // Elements are added to these to represent selection and cursors.\n    d.selectionDiv = elt(\"div\", null, null, \"position: relative; z-index: 1\");\n    d.cursorDiv = elt(\"div\", null, \"CodeMirror-cursors\");\n    // A visibility: hidden element used to find the size of things.\n    d.measure = elt(\"div\", null, \"CodeMirror-measure\");\n    // When lines outside of the viewport are measured, they are drawn in this.\n    d.lineMeasure = elt(\"div\", null, \"CodeMirror-measure\");\n    // Wraps everything that needs to exist inside the vertically-padded coordinate system\n    d.lineSpace = eltP(\"div\", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],\n                      null, \"position: relative; outline: none\");\n    var lines = eltP(\"div\", [d.lineSpace], \"CodeMirror-lines\");\n    // Moved around its parent to cover visible view.\n    d.mover = elt(\"div\", [lines], null, \"position: relative\");\n    // Set to the height of the document, allowing scrolling.\n    d.sizer = elt(\"div\", [d.mover], \"CodeMirror-sizer\");\n    d.sizerWidth = null;\n    // Behavior of elts with overflow: auto and padding is\n    // inconsistent across browsers. This is used to ensure the\n    // scrollable area is big enough.\n    d.heightForcer = elt(\"div\", null, null, \"position: absolute; height: \" + scrollerGap + \"px; width: 1px;\");\n    // Will contain the gutters, if any.\n    d.gutters = elt(\"div\", null, \"CodeMirror-gutters\");\n    d.lineGutter = null;\n    // Actual scrollable element.\n    d.scroller = elt(\"div\", [d.sizer, d.heightForcer, d.gutters], \"CodeMirror-scroll\");\n    d.scroller.setAttribute(\"tabIndex\", \"-1\");\n    // The element in which the editor lives.\n    d.wrapper = elt(\"div\", [d.scrollbarFiller, d.gutterFiller, d.scroller], \"CodeMirror\");\n\n    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)\n    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }\n    if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }\n\n    if (place) {\n      if (place.appendChild) { place.appendChild(d.wrapper); }\n      else { place(d.wrapper); }\n    }\n\n    // Current rendered range (may be bigger than the view window).\n    d.viewFrom = d.viewTo = doc.first;\n    d.reportedViewFrom = d.reportedViewTo = doc.first;\n    // Information about the rendered lines.\n    d.view = [];\n    d.renderedView = null;\n    // Holds info about a single rendered line when it was rendered\n    // for measurement, while not in view.\n    d.externalMeasured = null;\n    // Empty space (in pixels) above the view\n    d.viewOffset = 0;\n    d.lastWrapHeight = d.lastWrapWidth = 0;\n    d.updateLineNumbers = null;\n\n    d.nativeBarWidth = d.barHeight = d.barWidth = 0;\n    d.scrollbarsClipped = false;\n\n    // Used to only resize the line number gutter when necessary (when\n    // the amount of lines crosses a boundary that makes its width change)\n    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;\n    // Set to true when a non-horizontal-scrolling line widget is\n    // added. As an optimization, line widget aligning is skipped when\n    // this is false.\n    d.alignWidgets = false;\n\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\n\n    // Tracks the maximum line length so that the horizontal scrollbar\n    // can be kept static when scrolling.\n    d.maxLine = null;\n    d.maxLineLength = 0;\n    d.maxLineChanged = false;\n\n    // Used for measuring wheel scrolling granularity\n    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;\n\n    // True when shift is held down.\n    d.shift = false;\n\n    // Used to track whether anything happened since the context menu\n    // was opened.\n    d.selForContextMenu = null;\n\n    d.activeTouch = null;\n\n    d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);\n    renderGutters(d);\n\n    input.init(d);\n  }\n\n  // Since the delta values reported on mouse wheel events are\n  // unstandardized between browsers and even browser versions, and\n  // generally horribly unpredictable, this code starts by measuring\n  // the scroll effect that the first few mouse wheel events have,\n  // and, from that, detects the way it can convert deltas to pixel\n  // offsets afterwards.\n  //\n  // The reason we want to know the amount a wheel event will scroll\n  // is that it gives us a chance to update the display before the\n  // actual scrolling happens, reducing flickering.\n\n  var wheelSamples = 0, wheelPixelsPerUnit = null;\n  // Fill in a browser-detected starting value on browsers where we\n  // know one. These don't have to be accurate -- the result of them\n  // being wrong would just be a slight flicker on the first wheel\n  // scroll (if it is large enough).\n  if (ie) { wheelPixelsPerUnit = -.53; }\n  else if (gecko) { wheelPixelsPerUnit = 15; }\n  else if (chrome) { wheelPixelsPerUnit = -.7; }\n  else if (safari) { wheelPixelsPerUnit = -1/3; }\n\n  function wheelEventDelta(e) {\n    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;\n    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }\n    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }\n    else if (dy == null) { dy = e.wheelDelta; }\n    return {x: dx, y: dy}\n  }\n  function wheelEventPixels(e) {\n    var delta = wheelEventDelta(e);\n    delta.x *= wheelPixelsPerUnit;\n    delta.y *= wheelPixelsPerUnit;\n    return delta\n  }\n\n  function onScrollWheel(cm, e) {\n    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;\n\n    var display = cm.display, scroll = display.scroller;\n    // Quit if there's nothing to scroll here\n    var canScrollX = scroll.scrollWidth > scroll.clientWidth;\n    var canScrollY = scroll.scrollHeight > scroll.clientHeight;\n    if (!(dx && canScrollX || dy && canScrollY)) { return }\n\n    // Webkit browsers on OS X abort momentum scrolls when the target\n    // of the scroll event is removed from the scrollable element.\n    // This hack (see related code in patchDisplay) makes sure the\n    // element is kept around.\n    if (dy && mac && webkit) {\n      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {\n        for (var i = 0; i < view.length; i++) {\n          if (view[i].node == cur) {\n            cm.display.currentWheelTarget = cur;\n            break outer\n          }\n        }\n      }\n    }\n\n    // On some browsers, horizontal scrolling will cause redraws to\n    // happen before the gutter has been realigned, causing it to\n    // wriggle around in a most unseemly way. When we have an\n    // estimated pixels/delta value, we just handle horizontal\n    // scrolling entirely here. It'll be slightly off from native, but\n    // better than glitching out.\n    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {\n      if (dy && canScrollY)\n        { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }\n      setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));\n      // Only prevent default scrolling if vertical scrolling is\n      // actually possible. Otherwise, it causes vertical scroll\n      // jitter on OSX trackpads when deltaX is small and deltaY\n      // is large (issue #3579)\n      if (!dy || (dy && canScrollY))\n        { e_preventDefault(e); }\n      display.wheelStartX = null; // Abort measurement, if in progress\n      return\n    }\n\n    // 'Project' the visible viewport to cover the area that is being\n    // scrolled into view (if we know enough to estimate it).\n    if (dy && wheelPixelsPerUnit != null) {\n      var pixels = dy * wheelPixelsPerUnit;\n      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;\n      if (pixels < 0) { top = Math.max(0, top + pixels - 50); }\n      else { bot = Math.min(cm.doc.height, bot + pixels + 50); }\n      updateDisplaySimple(cm, {top: top, bottom: bot});\n    }\n\n    if (wheelSamples < 20) {\n      if (display.wheelStartX == null) {\n        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;\n        display.wheelDX = dx; display.wheelDY = dy;\n        setTimeout(function () {\n          if (display.wheelStartX == null) { return }\n          var movedX = scroll.scrollLeft - display.wheelStartX;\n          var movedY = scroll.scrollTop - display.wheelStartY;\n          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||\n            (movedX && display.wheelDX && movedX / display.wheelDX);\n          display.wheelStartX = display.wheelStartY = null;\n          if (!sample) { return }\n          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);\n          ++wheelSamples;\n        }, 200);\n      } else {\n        display.wheelDX += dx; display.wheelDY += dy;\n      }\n    }\n  }\n\n  // Selection objects are immutable. A new one is created every time\n  // the selection changes. A selection is one or more non-overlapping\n  // (and non-touching) ranges, sorted, and an integer that indicates\n  // which one is the primary selection (the one that's scrolled into\n  // view, that getCursor returns, etc).\n  var Selection = function(ranges, primIndex) {\n    this.ranges = ranges;\n    this.primIndex = primIndex;\n  };\n\n  Selection.prototype.primary = function () { return this.ranges[this.primIndex] };\n\n  Selection.prototype.equals = function (other) {\n      var this$1 = this;\n\n    if (other == this) { return true }\n    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }\n    for (var i = 0; i < this.ranges.length; i++) {\n      var here = this$1.ranges[i], there = other.ranges[i];\n      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }\n    }\n    return true\n  };\n\n  Selection.prototype.deepCopy = function () {\n      var this$1 = this;\n\n    var out = [];\n    for (var i = 0; i < this.ranges.length; i++)\n      { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); }\n    return new Selection(out, this.primIndex)\n  };\n\n  Selection.prototype.somethingSelected = function () {\n      var this$1 = this;\n\n    for (var i = 0; i < this.ranges.length; i++)\n      { if (!this$1.ranges[i].empty()) { return true } }\n    return false\n  };\n\n  Selection.prototype.contains = function (pos, end) {\n      var this$1 = this;\n\n    if (!end) { end = pos; }\n    for (var i = 0; i < this.ranges.length; i++) {\n      var range = this$1.ranges[i];\n      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)\n        { return i }\n    }\n    return -1\n  };\n\n  var Range = function(anchor, head) {\n    this.anchor = anchor; this.head = head;\n  };\n\n  Range.prototype.from = function () { return minPos(this.anchor, this.head) };\n  Range.prototype.to = function () { return maxPos(this.anchor, this.head) };\n  Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };\n\n  // Take an unsorted, potentially overlapping set of ranges, and\n  // build a selection out of it. 'Consumes' ranges array (modifying\n  // it).\n  function normalizeSelection(cm, ranges, primIndex) {\n    var mayTouch = cm && cm.options.selectionsMayTouch;\n    var prim = ranges[primIndex];\n    ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });\n    primIndex = indexOf(ranges, prim);\n    for (var i = 1; i < ranges.length; i++) {\n      var cur = ranges[i], prev = ranges[i - 1];\n      var diff = cmp(prev.to(), cur.from());\n      if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {\n        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());\n        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;\n        if (i <= primIndex) { --primIndex; }\n        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));\n      }\n    }\n    return new Selection(ranges, primIndex)\n  }\n\n  function simpleSelection(anchor, head) {\n    return new Selection([new Range(anchor, head || anchor)], 0)\n  }\n\n  // Compute the position of the end of a change (its 'to' property\n  // refers to the pre-change end).\n  function changeEnd(change) {\n    if (!change.text) { return change.to }\n    return Pos(change.from.line + change.text.length - 1,\n               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))\n  }\n\n  // Adjust a position to refer to the post-change position of the\n  // same text, or the end of the change if the change covers it.\n  function adjustForChange(pos, change) {\n    if (cmp(pos, change.from) < 0) { return pos }\n    if (cmp(pos, change.to) <= 0) { return changeEnd(change) }\n\n    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;\n    if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }\n    return Pos(line, ch)\n  }\n\n  function computeSelAfterChange(doc, change) {\n    var out = [];\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\n      var range = doc.sel.ranges[i];\n      out.push(new Range(adjustForChange(range.anchor, change),\n                         adjustForChange(range.head, change)));\n    }\n    return normalizeSelection(doc.cm, out, doc.sel.primIndex)\n  }\n\n  function offsetPos(pos, old, nw) {\n    if (pos.line == old.line)\n      { return Pos(nw.line, pos.ch - old.ch + nw.ch) }\n    else\n      { return Pos(nw.line + (pos.line - old.line), pos.ch) }\n  }\n\n  // Used by replaceSelections to allow moving the selection to the\n  // start or around the replaced test. Hint may be \"start\" or \"around\".\n  function computeReplacedSel(doc, changes, hint) {\n    var out = [];\n    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;\n    for (var i = 0; i < changes.length; i++) {\n      var change = changes[i];\n      var from = offsetPos(change.from, oldPrev, newPrev);\n      var to = offsetPos(changeEnd(change), oldPrev, newPrev);\n      oldPrev = change.to;\n      newPrev = to;\n      if (hint == \"around\") {\n        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;\n        out[i] = new Range(inv ? to : from, inv ? from : to);\n      } else {\n        out[i] = new Range(from, from);\n      }\n    }\n    return new Selection(out, doc.sel.primIndex)\n  }\n\n  // Used to get the editor into a consistent state again when options change.\n\n  function loadMode(cm) {\n    cm.doc.mode = getMode(cm.options, cm.doc.modeOption);\n    resetModeState(cm);\n  }\n\n  function resetModeState(cm) {\n    cm.doc.iter(function (line) {\n      if (line.stateAfter) { line.stateAfter = null; }\n      if (line.styles) { line.styles = null; }\n    });\n    cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;\n    startWorker(cm, 100);\n    cm.state.modeGen++;\n    if (cm.curOp) { regChange(cm); }\n  }\n\n  // DOCUMENT DATA STRUCTURE\n\n  // By default, updates that start and end at the beginning of a line\n  // are treated specially, in order to make the association of line\n  // widgets and marker elements with the text behave more intuitive.\n  function isWholeLineUpdate(doc, change) {\n    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == \"\" &&\n      (!doc.cm || doc.cm.options.wholeLineUpdateBefore)\n  }\n\n  // Perform a change on the document data structure.\n  function updateDoc(doc, change, markedSpans, estimateHeight$$1) {\n    function spansFor(n) {return markedSpans ? markedSpans[n] : null}\n    function update(line, text, spans) {\n      updateLine(line, text, spans, estimateHeight$$1);\n      signalLater(line, \"change\", line, change);\n    }\n    function linesFor(start, end) {\n      var result = [];\n      for (var i = start; i < end; ++i)\n        { result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); }\n      return result\n    }\n\n    var from = change.from, to = change.to, text = change.text;\n    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);\n    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;\n\n    // Adjust the line structure\n    if (change.full) {\n      doc.insert(0, linesFor(0, text.length));\n      doc.remove(text.length, doc.size - text.length);\n    } else if (isWholeLineUpdate(doc, change)) {\n      // This is a whole-line replace. Treated specially to make\n      // sure line objects move the way they are supposed to.\n      var added = linesFor(0, text.length - 1);\n      update(lastLine, lastLine.text, lastSpans);\n      if (nlines) { doc.remove(from.line, nlines); }\n      if (added.length) { doc.insert(from.line, added); }\n    } else if (firstLine == lastLine) {\n      if (text.length == 1) {\n        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);\n      } else {\n        var added$1 = linesFor(1, text.length - 1);\n        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1));\n        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\n        doc.insert(from.line + 1, added$1);\n      }\n    } else if (text.length == 1) {\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));\n      doc.remove(from.line + 1, nlines);\n    } else {\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\n      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);\n      var added$2 = linesFor(1, text.length - 1);\n      if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }\n      doc.insert(from.line + 1, added$2);\n    }\n\n    signalLater(doc, \"change\", doc, change);\n  }\n\n  // Call f for all linked documents.\n  function linkedDocs(doc, f, sharedHistOnly) {\n    function propagate(doc, skip, sharedHist) {\n      if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {\n        var rel = doc.linked[i];\n        if (rel.doc == skip) { continue }\n        var shared = sharedHist && rel.sharedHist;\n        if (sharedHistOnly && !shared) { continue }\n        f(rel.doc, shared);\n        propagate(rel.doc, doc, shared);\n      } }\n    }\n    propagate(doc, null, true);\n  }\n\n  // Attach a document to an editor.\n  function attachDoc(cm, doc) {\n    if (doc.cm) { throw new Error(\"This document is already in use.\") }\n    cm.doc = doc;\n    doc.cm = cm;\n    estimateLineHeights(cm);\n    loadMode(cm);\n    setDirectionClass(cm);\n    if (!cm.options.lineWrapping) { findMaxLine(cm); }\n    cm.options.mode = doc.modeOption;\n    regChange(cm);\n  }\n\n  function setDirectionClass(cm) {\n  (cm.doc.direction == \"rtl\" ? addClass : rmClass)(cm.display.lineDiv, \"CodeMirror-rtl\");\n  }\n\n  function directionChanged(cm) {\n    runInOp(cm, function () {\n      setDirectionClass(cm);\n      regChange(cm);\n    });\n  }\n\n  function History(startGen) {\n    // Arrays of change events and selections. Doing something adds an\n    // event to done and clears undo. Undoing moves events from done\n    // to undone, redoing moves them in the other direction.\n    this.done = []; this.undone = [];\n    this.undoDepth = Infinity;\n    // Used to track when changes can be merged into a single undo\n    // event\n    this.lastModTime = this.lastSelTime = 0;\n    this.lastOp = this.lastSelOp = null;\n    this.lastOrigin = this.lastSelOrigin = null;\n    // Used by the isClean() method\n    this.generation = this.maxGeneration = startGen || 1;\n  }\n\n  // Create a history change event from an updateDoc-style change\n  // object.\n  function historyChangeFromChange(doc, change) {\n    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};\n    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);\n    linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);\n    return histChange\n  }\n\n  // Pop all selection events off the end of a history array. Stop at\n  // a change event.\n  function clearSelectionEvents(array) {\n    while (array.length) {\n      var last = lst(array);\n      if (last.ranges) { array.pop(); }\n      else { break }\n    }\n  }\n\n  // Find the top change event in the history. Pop off selection\n  // events that are in the way.\n  function lastChangeEvent(hist, force) {\n    if (force) {\n      clearSelectionEvents(hist.done);\n      return lst(hist.done)\n    } else if (hist.done.length && !lst(hist.done).ranges) {\n      return lst(hist.done)\n    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {\n      hist.done.pop();\n      return lst(hist.done)\n    }\n  }\n\n  // Register a change in the history. Merges changes that are within\n  // a single operation, or are close together with an origin that\n  // allows merging (starting with \"+\") into a single event.\n  function addChangeToHistory(doc, change, selAfter, opId) {\n    var hist = doc.history;\n    hist.undone.length = 0;\n    var time = +new Date, cur;\n    var last;\n\n    if ((hist.lastOp == opId ||\n         hist.lastOrigin == change.origin && change.origin &&\n         ((change.origin.charAt(0) == \"+\" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||\n          change.origin.charAt(0) == \"*\")) &&\n        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {\n      // Merge this change into the last event\n      last = lst(cur.changes);\n      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {\n        // Optimized case for simple insertion -- don't want to add\n        // new changesets for every character typed\n        last.to = changeEnd(change);\n      } else {\n        // Add new sub-event\n        cur.changes.push(historyChangeFromChange(doc, change));\n      }\n    } else {\n      // Can not be merged, start a new event.\n      var before = lst(hist.done);\n      if (!before || !before.ranges)\n        { pushSelectionToHistory(doc.sel, hist.done); }\n      cur = {changes: [historyChangeFromChange(doc, change)],\n             generation: hist.generation};\n      hist.done.push(cur);\n      while (hist.done.length > hist.undoDepth) {\n        hist.done.shift();\n        if (!hist.done[0].ranges) { hist.done.shift(); }\n      }\n    }\n    hist.done.push(selAfter);\n    hist.generation = ++hist.maxGeneration;\n    hist.lastModTime = hist.lastSelTime = time;\n    hist.lastOp = hist.lastSelOp = opId;\n    hist.lastOrigin = hist.lastSelOrigin = change.origin;\n\n    if (!last) { signal(doc, \"historyAdded\"); }\n  }\n\n  function selectionEventCanBeMerged(doc, origin, prev, sel) {\n    var ch = origin.charAt(0);\n    return ch == \"*\" ||\n      ch == \"+\" &&\n      prev.ranges.length == sel.ranges.length &&\n      prev.somethingSelected() == sel.somethingSelected() &&\n      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)\n  }\n\n  // Called whenever the selection changes, sets the new selection as\n  // the pending selection in the history, and pushes the old pending\n  // selection into the 'done' array when it was significantly\n  // different (in number of selected ranges, emptiness, or time).\n  function addSelectionToHistory(doc, sel, opId, options) {\n    var hist = doc.history, origin = options && options.origin;\n\n    // A new event is started when the previous origin does not match\n    // the current, or the origins don't allow matching. Origins\n    // starting with * are always merged, those starting with + are\n    // merged when similar and close together in time.\n    if (opId == hist.lastSelOp ||\n        (origin && hist.lastSelOrigin == origin &&\n         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||\n          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))\n      { hist.done[hist.done.length - 1] = sel; }\n    else\n      { pushSelectionToHistory(sel, hist.done); }\n\n    hist.lastSelTime = +new Date;\n    hist.lastSelOrigin = origin;\n    hist.lastSelOp = opId;\n    if (options && options.clearRedo !== false)\n      { clearSelectionEvents(hist.undone); }\n  }\n\n  function pushSelectionToHistory(sel, dest) {\n    var top = lst(dest);\n    if (!(top && top.ranges && top.equals(sel)))\n      { dest.push(sel); }\n  }\n\n  // Used to store marked span information in the history.\n  function attachLocalSpans(doc, change, from, to) {\n    var existing = change[\"spans_\" + doc.id], n = 0;\n    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {\n      if (line.markedSpans)\n        { (existing || (existing = change[\"spans_\" + doc.id] = {}))[n] = line.markedSpans; }\n      ++n;\n    });\n  }\n\n  // When un/re-doing restores text containing marked spans, those\n  // that have been explicitly cleared should not be restored.\n  function removeClearedSpans(spans) {\n    if (!spans) { return null }\n    var out;\n    for (var i = 0; i < spans.length; ++i) {\n      if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }\n      else if (out) { out.push(spans[i]); }\n    }\n    return !out ? spans : out.length ? out : null\n  }\n\n  // Retrieve and filter the old marked spans stored in a change event.\n  function getOldSpans(doc, change) {\n    var found = change[\"spans_\" + doc.id];\n    if (!found) { return null }\n    var nw = [];\n    for (var i = 0; i < change.text.length; ++i)\n      { nw.push(removeClearedSpans(found[i])); }\n    return nw\n  }\n\n  // Used for un/re-doing changes from the history. Combines the\n  // result of computing the existing spans with the set of spans that\n  // existed in the history (so that deleting around a span and then\n  // undoing brings back the span).\n  function mergeOldSpans(doc, change) {\n    var old = getOldSpans(doc, change);\n    var stretched = stretchSpansOverChange(doc, change);\n    if (!old) { return stretched }\n    if (!stretched) { return old }\n\n    for (var i = 0; i < old.length; ++i) {\n      var oldCur = old[i], stretchCur = stretched[i];\n      if (oldCur && stretchCur) {\n        spans: for (var j = 0; j < stretchCur.length; ++j) {\n          var span = stretchCur[j];\n          for (var k = 0; k < oldCur.length; ++k)\n            { if (oldCur[k].marker == span.marker) { continue spans } }\n          oldCur.push(span);\n        }\n      } else if (stretchCur) {\n        old[i] = stretchCur;\n      }\n    }\n    return old\n  }\n\n  // Used both to provide a JSON-safe object in .getHistory, and, when\n  // detaching a document, to split the history in two\n  function copyHistoryArray(events, newGroup, instantiateSel) {\n    var copy = [];\n    for (var i = 0; i < events.length; ++i) {\n      var event = events[i];\n      if (event.ranges) {\n        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);\n        continue\n      }\n      var changes = event.changes, newChanges = [];\n      copy.push({changes: newChanges});\n      for (var j = 0; j < changes.length; ++j) {\n        var change = changes[j], m = (void 0);\n        newChanges.push({from: change.from, to: change.to, text: change.text});\n        if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\\d+)$/)) {\n          if (indexOf(newGroup, Number(m[1])) > -1) {\n            lst(newChanges)[prop] = change[prop];\n            delete change[prop];\n          }\n        } } }\n      }\n    }\n    return copy\n  }\n\n  // The 'scroll' parameter given to many of these indicated whether\n  // the new cursor position should be scrolled into view after\n  // modifying the selection.\n\n  // If shift is held or the extend flag is set, extends a range to\n  // include a given position (and optionally a second position).\n  // Otherwise, simply returns the range between the given positions.\n  // Used for cursor motion and such.\n  function extendRange(range, head, other, extend) {\n    if (extend) {\n      var anchor = range.anchor;\n      if (other) {\n        var posBefore = cmp(head, anchor) < 0;\n        if (posBefore != (cmp(other, anchor) < 0)) {\n          anchor = head;\n          head = other;\n        } else if (posBefore != (cmp(head, other) < 0)) {\n          head = other;\n        }\n      }\n      return new Range(anchor, head)\n    } else {\n      return new Range(other || head, head)\n    }\n  }\n\n  // Extend the primary selection range, discard the rest.\n  function extendSelection(doc, head, other, options, extend) {\n    if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }\n    setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);\n  }\n\n  // Extend all selections (pos is an array of selections with length\n  // equal the number of selections)\n  function extendSelections(doc, heads, options) {\n    var out = [];\n    var extend = doc.cm && (doc.cm.display.shift || doc.extend);\n    for (var i = 0; i < doc.sel.ranges.length; i++)\n      { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }\n    var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);\n    setSelection(doc, newSel, options);\n  }\n\n  // Updates a single range in the selection.\n  function replaceOneSelection(doc, i, range, options) {\n    var ranges = doc.sel.ranges.slice(0);\n    ranges[i] = range;\n    setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);\n  }\n\n  // Reset the selection to a single range.\n  function setSimpleSelection(doc, anchor, head, options) {\n    setSelection(doc, simpleSelection(anchor, head), options);\n  }\n\n  // Give beforeSelectionChange handlers a change to influence a\n  // selection update.\n  function filterSelectionChange(doc, sel, options) {\n    var obj = {\n      ranges: sel.ranges,\n      update: function(ranges) {\n        var this$1 = this;\n\n        this.ranges = [];\n        for (var i = 0; i < ranges.length; i++)\n          { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),\n                                     clipPos(doc, ranges[i].head)); }\n      },\n      origin: options && options.origin\n    };\n    signal(doc, \"beforeSelectionChange\", doc, obj);\n    if (doc.cm) { signal(doc.cm, \"beforeSelectionChange\", doc.cm, obj); }\n    if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }\n    else { return sel }\n  }\n\n  function setSelectionReplaceHistory(doc, sel, options) {\n    var done = doc.history.done, last = lst(done);\n    if (last && last.ranges) {\n      done[done.length - 1] = sel;\n      setSelectionNoUndo(doc, sel, options);\n    } else {\n      setSelection(doc, sel, options);\n    }\n  }\n\n  // Set a new selection.\n  function setSelection(doc, sel, options) {\n    setSelectionNoUndo(doc, sel, options);\n    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);\n  }\n\n  function setSelectionNoUndo(doc, sel, options) {\n    if (hasHandler(doc, \"beforeSelectionChange\") || doc.cm && hasHandler(doc.cm, \"beforeSelectionChange\"))\n      { sel = filterSelectionChange(doc, sel, options); }\n\n    var bias = options && options.bias ||\n      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);\n    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));\n\n    if (!(options && options.scroll === false) && doc.cm)\n      { ensureCursorVisible(doc.cm); }\n  }\n\n  function setSelectionInner(doc, sel) {\n    if (sel.equals(doc.sel)) { return }\n\n    doc.sel = sel;\n\n    if (doc.cm) {\n      doc.cm.curOp.updateInput = 1;\n      doc.cm.curOp.selectionChanged = true;\n      signalCursorActivity(doc.cm);\n    }\n    signalLater(doc, \"cursorActivity\", doc);\n  }\n\n  // Verify that the selection does not partially select any atomic\n  // marked ranges.\n  function reCheckSelection(doc) {\n    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));\n  }\n\n  // Return a selection that does not partially select any atomic\n  // ranges.\n  function skipAtomicInSelection(doc, sel, bias, mayClear) {\n    var out;\n    for (var i = 0; i < sel.ranges.length; i++) {\n      var range = sel.ranges[i];\n      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];\n      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);\n      var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);\n      if (out || newAnchor != range.anchor || newHead != range.head) {\n        if (!out) { out = sel.ranges.slice(0, i); }\n        out[i] = new Range(newAnchor, newHead);\n      }\n    }\n    return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel\n  }\n\n  function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {\n    var line = getLine(doc, pos.line);\n    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n      var sp = line.markedSpans[i], m = sp.marker;\n\n      // Determine if we should prevent the cursor being placed to the left/right of an atomic marker\n      // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it\n      // is with selectLeft/Right\n      var preventCursorLeft = (\"selectLeft\" in m) ? !m.selectLeft : m.inclusiveLeft;\n      var preventCursorRight = (\"selectRight\" in m) ? !m.selectRight : m.inclusiveRight;\n\n      if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&\n          (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {\n        if (mayClear) {\n          signal(m, \"beforeCursorEnter\");\n          if (m.explicitlyCleared) {\n            if (!line.markedSpans) { break }\n            else {--i; continue}\n          }\n        }\n        if (!m.atomic) { continue }\n\n        if (oldPos) {\n          var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);\n          if (dir < 0 ? preventCursorRight : preventCursorLeft)\n            { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }\n          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))\n            { return skipAtomicInner(doc, near, pos, dir, mayClear) }\n        }\n\n        var far = m.find(dir < 0 ? -1 : 1);\n        if (dir < 0 ? preventCursorLeft : preventCursorRight)\n          { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }\n        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null\n      }\n    } }\n    return pos\n  }\n\n  // Ensure a given position is not inside an atomic range.\n  function skipAtomic(doc, pos, oldPos, bias, mayClear) {\n    var dir = bias || 1;\n    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||\n        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||\n        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||\n        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));\n    if (!found) {\n      doc.cantEdit = true;\n      return Pos(doc.first, 0)\n    }\n    return found\n  }\n\n  function movePos(doc, pos, dir, line) {\n    if (dir < 0 && pos.ch == 0) {\n      if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }\n      else { return null }\n    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {\n      if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }\n      else { return null }\n    } else {\n      return new Pos(pos.line, pos.ch + dir)\n    }\n  }\n\n  function selectAll(cm) {\n    cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);\n  }\n\n  // UPDATING\n\n  // Allow \"beforeChange\" event handlers to influence a change\n  function filterChange(doc, change, update) {\n    var obj = {\n      canceled: false,\n      from: change.from,\n      to: change.to,\n      text: change.text,\n      origin: change.origin,\n      cancel: function () { return obj.canceled = true; }\n    };\n    if (update) { obj.update = function (from, to, text, origin) {\n      if (from) { obj.from = clipPos(doc, from); }\n      if (to) { obj.to = clipPos(doc, to); }\n      if (text) { obj.text = text; }\n      if (origin !== undefined) { obj.origin = origin; }\n    }; }\n    signal(doc, \"beforeChange\", doc, obj);\n    if (doc.cm) { signal(doc.cm, \"beforeChange\", doc.cm, obj); }\n\n    if (obj.canceled) {\n      if (doc.cm) { doc.cm.curOp.updateInput = 2; }\n      return null\n    }\n    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}\n  }\n\n  // Apply a change to a document, and add it to the document's\n  // history, and propagating it to all linked documents.\n  function makeChange(doc, change, ignoreReadOnly) {\n    if (doc.cm) {\n      if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }\n      if (doc.cm.state.suppressEdits) { return }\n    }\n\n    if (hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\")) {\n      change = filterChange(doc, change, true);\n      if (!change) { return }\n    }\n\n    // Possibly split or suppress the update based on the presence\n    // of read-only spans in its range.\n    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);\n    if (split) {\n      for (var i = split.length - 1; i >= 0; --i)\n        { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [\"\"] : change.text, origin: change.origin}); }\n    } else {\n      makeChangeInner(doc, change);\n    }\n  }\n\n  function makeChangeInner(doc, change) {\n    if (change.text.length == 1 && change.text[0] == \"\" && cmp(change.from, change.to) == 0) { return }\n    var selAfter = computeSelAfterChange(doc, change);\n    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);\n\n    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));\n    var rebased = [];\n\n    linkedDocs(doc, function (doc, sharedHist) {\n      if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n        rebaseHist(doc.history, change);\n        rebased.push(doc.history);\n      }\n      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));\n    });\n  }\n\n  // Revert a change stored in a document's history.\n  function makeChangeFromHistory(doc, type, allowSelectionOnly) {\n    var suppress = doc.cm && doc.cm.state.suppressEdits;\n    if (suppress && !allowSelectionOnly) { return }\n\n    var hist = doc.history, event, selAfter = doc.sel;\n    var source = type == \"undo\" ? hist.done : hist.undone, dest = type == \"undo\" ? hist.undone : hist.done;\n\n    // Verify that there is a useable event (so that ctrl-z won't\n    // needlessly clear selection events)\n    var i = 0;\n    for (; i < source.length; i++) {\n      event = source[i];\n      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)\n        { break }\n    }\n    if (i == source.length) { return }\n    hist.lastOrigin = hist.lastSelOrigin = null;\n\n    for (;;) {\n      event = source.pop();\n      if (event.ranges) {\n        pushSelectionToHistory(event, dest);\n        if (allowSelectionOnly && !event.equals(doc.sel)) {\n          setSelection(doc, event, {clearRedo: false});\n          return\n        }\n        selAfter = event;\n      } else if (suppress) {\n        source.push(event);\n        return\n      } else { break }\n    }\n\n    // Build up a reverse change object to add to the opposite history\n    // stack (redo when undoing, and vice versa).\n    var antiChanges = [];\n    pushSelectionToHistory(selAfter, dest);\n    dest.push({changes: antiChanges, generation: hist.generation});\n    hist.generation = event.generation || ++hist.maxGeneration;\n\n    var filter = hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\");\n\n    var loop = function ( i ) {\n      var change = event.changes[i];\n      change.origin = type;\n      if (filter && !filterChange(doc, change, false)) {\n        source.length = 0;\n        return {}\n      }\n\n      antiChanges.push(historyChangeFromChange(doc, change));\n\n      var after = i ? computeSelAfterChange(doc, change) : lst(source);\n      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));\n      if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }\n      var rebased = [];\n\n      // Propagate to the linked documents\n      linkedDocs(doc, function (doc, sharedHist) {\n        if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n          rebaseHist(doc.history, change);\n          rebased.push(doc.history);\n        }\n        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));\n      });\n    };\n\n    for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {\n      var returned = loop( i$1 );\n\n      if ( returned ) return returned.v;\n    }\n  }\n\n  // Sub-views need their line numbers shifted when text is added\n  // above or below them in the parent document.\n  function shiftDoc(doc, distance) {\n    if (distance == 0) { return }\n    doc.first += distance;\n    doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(\n      Pos(range.anchor.line + distance, range.anchor.ch),\n      Pos(range.head.line + distance, range.head.ch)\n    ); }), doc.sel.primIndex);\n    if (doc.cm) {\n      regChange(doc.cm, doc.first, doc.first - distance, distance);\n      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)\n        { regLineChange(doc.cm, l, \"gutter\"); }\n    }\n  }\n\n  // More lower-level change function, handling only a single document\n  // (not linked ones).\n  function makeChangeSingleDoc(doc, change, selAfter, spans) {\n    if (doc.cm && !doc.cm.curOp)\n      { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }\n\n    if (change.to.line < doc.first) {\n      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));\n      return\n    }\n    if (change.from.line > doc.lastLine()) { return }\n\n    // Clip the change to the size of this doc\n    if (change.from.line < doc.first) {\n      var shift = change.text.length - 1 - (doc.first - change.from.line);\n      shiftDoc(doc, shift);\n      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),\n                text: [lst(change.text)], origin: change.origin};\n    }\n    var last = doc.lastLine();\n    if (change.to.line > last) {\n      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),\n                text: [change.text[0]], origin: change.origin};\n    }\n\n    change.removed = getBetween(doc, change.from, change.to);\n\n    if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }\n    if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }\n    else { updateDoc(doc, change, spans); }\n    setSelectionNoUndo(doc, selAfter, sel_dontScroll);\n\n    if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))\n      { doc.cantEdit = false; }\n  }\n\n  // Handle the interaction of a change to a document with the editor\n  // that this document is part of.\n  function makeChangeSingleDocInEditor(cm, change, spans) {\n    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;\n\n    var recomputeMaxLength = false, checkWidthStart = from.line;\n    if (!cm.options.lineWrapping) {\n      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));\n      doc.iter(checkWidthStart, to.line + 1, function (line) {\n        if (line == display.maxLine) {\n          recomputeMaxLength = true;\n          return true\n        }\n      });\n    }\n\n    if (doc.sel.contains(change.from, change.to) > -1)\n      { signalCursorActivity(cm); }\n\n    updateDoc(doc, change, spans, estimateHeight(cm));\n\n    if (!cm.options.lineWrapping) {\n      doc.iter(checkWidthStart, from.line + change.text.length, function (line) {\n        var len = lineLength(line);\n        if (len > display.maxLineLength) {\n          display.maxLine = line;\n          display.maxLineLength = len;\n          display.maxLineChanged = true;\n          recomputeMaxLength = false;\n        }\n      });\n      if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }\n    }\n\n    retreatFrontier(doc, from.line);\n    startWorker(cm, 400);\n\n    var lendiff = change.text.length - (to.line - from.line) - 1;\n    // Remember that these lines changed, for updating the display\n    if (change.full)\n      { regChange(cm); }\n    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))\n      { regLineChange(cm, from.line, \"text\"); }\n    else\n      { regChange(cm, from.line, to.line + 1, lendiff); }\n\n    var changesHandler = hasHandler(cm, \"changes\"), changeHandler = hasHandler(cm, \"change\");\n    if (changeHandler || changesHandler) {\n      var obj = {\n        from: from, to: to,\n        text: change.text,\n        removed: change.removed,\n        origin: change.origin\n      };\n      if (changeHandler) { signalLater(cm, \"change\", cm, obj); }\n      if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }\n    }\n    cm.display.selForContextMenu = null;\n  }\n\n  function replaceRange(doc, code, from, to, origin) {\n    var assign;\n\n    if (!to) { to = from; }\n    if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }\n    if (typeof code == \"string\") { code = doc.splitLines(code); }\n    makeChange(doc, {from: from, to: to, text: code, origin: origin});\n  }\n\n  // Rebasing/resetting history to deal with externally-sourced changes\n\n  function rebaseHistSelSingle(pos, from, to, diff) {\n    if (to < pos.line) {\n      pos.line += diff;\n    } else if (from < pos.line) {\n      pos.line = from;\n      pos.ch = 0;\n    }\n  }\n\n  // Tries to rebase an array of history events given a change in the\n  // document. If the change touches the same lines as the event, the\n  // event, and everything 'behind' it, is discarded. If the change is\n  // before the event, the event's positions are updated. Uses a\n  // copy-on-write scheme for the positions, to avoid having to\n  // reallocate them all on every rebase, but also avoid problems with\n  // shared position objects being unsafely updated.\n  function rebaseHistArray(array, from, to, diff) {\n    for (var i = 0; i < array.length; ++i) {\n      var sub = array[i], ok = true;\n      if (sub.ranges) {\n        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }\n        for (var j = 0; j < sub.ranges.length; j++) {\n          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);\n          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);\n        }\n        continue\n      }\n      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {\n        var cur = sub.changes[j$1];\n        if (to < cur.from.line) {\n          cur.from = Pos(cur.from.line + diff, cur.from.ch);\n          cur.to = Pos(cur.to.line + diff, cur.to.ch);\n        } else if (from <= cur.to.line) {\n          ok = false;\n          break\n        }\n      }\n      if (!ok) {\n        array.splice(0, i + 1);\n        i = 0;\n      }\n    }\n  }\n\n  function rebaseHist(hist, change) {\n    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;\n    rebaseHistArray(hist.done, from, to, diff);\n    rebaseHistArray(hist.undone, from, to, diff);\n  }\n\n  // Utility for applying a change to a line by handle or number,\n  // returning the number and optionally registering the line as\n  // changed.\n  function changeLine(doc, handle, changeType, op) {\n    var no = handle, line = handle;\n    if (typeof handle == \"number\") { line = getLine(doc, clipLine(doc, handle)); }\n    else { no = lineNo(handle); }\n    if (no == null) { return null }\n    if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }\n    return line\n  }\n\n  // The document is represented as a BTree consisting of leaves, with\n  // chunk of lines in them, and branches, with up to ten leaves or\n  // other branch nodes below them. The top node is always a branch\n  // node, and is the document object itself (meaning it has\n  // additional methods and properties).\n  //\n  // All nodes have parent links. The tree is used both to go from\n  // line numbers to line objects, and to go from objects to numbers.\n  // It also indexes by height, and is used to convert between height\n  // and line object, and to find the total height of the document.\n  //\n  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html\n\n  function LeafChunk(lines) {\n    var this$1 = this;\n\n    this.lines = lines;\n    this.parent = null;\n    var height = 0;\n    for (var i = 0; i < lines.length; ++i) {\n      lines[i].parent = this$1;\n      height += lines[i].height;\n    }\n    this.height = height;\n  }\n\n  LeafChunk.prototype = {\n    chunkSize: function() { return this.lines.length },\n\n    // Remove the n lines at offset 'at'.\n    removeInner: function(at, n) {\n      var this$1 = this;\n\n      for (var i = at, e = at + n; i < e; ++i) {\n        var line = this$1.lines[i];\n        this$1.height -= line.height;\n        cleanUpLine(line);\n        signalLater(line, \"delete\");\n      }\n      this.lines.splice(at, n);\n    },\n\n    // Helper used to collapse a small branch into a single leaf.\n    collapse: function(lines) {\n      lines.push.apply(lines, this.lines);\n    },\n\n    // Insert the given array of lines at offset 'at', count them as\n    // having the given height.\n    insertInner: function(at, lines, height) {\n      var this$1 = this;\n\n      this.height += height;\n      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));\n      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; }\n    },\n\n    // Used to iterate over a part of the tree.\n    iterN: function(at, n, op) {\n      var this$1 = this;\n\n      for (var e = at + n; at < e; ++at)\n        { if (op(this$1.lines[at])) { return true } }\n    }\n  };\n\n  function BranchChunk(children) {\n    var this$1 = this;\n\n    this.children = children;\n    var size = 0, height = 0;\n    for (var i = 0; i < children.length; ++i) {\n      var ch = children[i];\n      size += ch.chunkSize(); height += ch.height;\n      ch.parent = this$1;\n    }\n    this.size = size;\n    this.height = height;\n    this.parent = null;\n  }\n\n  BranchChunk.prototype = {\n    chunkSize: function() { return this.size },\n\n    removeInner: function(at, n) {\n      var this$1 = this;\n\n      this.size -= n;\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this$1.children[i], sz = child.chunkSize();\n        if (at < sz) {\n          var rm = Math.min(n, sz - at), oldHeight = child.height;\n          child.removeInner(at, rm);\n          this$1.height -= oldHeight - child.height;\n          if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; }\n          if ((n -= rm) == 0) { break }\n          at = 0;\n        } else { at -= sz; }\n      }\n      // If the result is smaller than 25 lines, ensure that it is a\n      // single leaf node.\n      if (this.size - n < 25 &&\n          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {\n        var lines = [];\n        this.collapse(lines);\n        this.children = [new LeafChunk(lines)];\n        this.children[0].parent = this;\n      }\n    },\n\n    collapse: function(lines) {\n      var this$1 = this;\n\n      for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); }\n    },\n\n    insertInner: function(at, lines, height) {\n      var this$1 = this;\n\n      this.size += lines.length;\n      this.height += height;\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this$1.children[i], sz = child.chunkSize();\n        if (at <= sz) {\n          child.insertInner(at, lines, height);\n          if (child.lines && child.lines.length > 50) {\n            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.\n            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.\n            var remaining = child.lines.length % 25 + 25;\n            for (var pos = remaining; pos < child.lines.length;) {\n              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));\n              child.height -= leaf.height;\n              this$1.children.splice(++i, 0, leaf);\n              leaf.parent = this$1;\n            }\n            child.lines = child.lines.slice(0, remaining);\n            this$1.maybeSpill();\n          }\n          break\n        }\n        at -= sz;\n      }\n    },\n\n    // When a node has grown, check whether it should be split.\n    maybeSpill: function() {\n      if (this.children.length <= 10) { return }\n      var me = this;\n      do {\n        var spilled = me.children.splice(me.children.length - 5, 5);\n        var sibling = new BranchChunk(spilled);\n        if (!me.parent) { // Become the parent node\n          var copy = new BranchChunk(me.children);\n          copy.parent = me;\n          me.children = [copy, sibling];\n          me = copy;\n       } else {\n          me.size -= sibling.size;\n          me.height -= sibling.height;\n          var myIndex = indexOf(me.parent.children, me);\n          me.parent.children.splice(myIndex + 1, 0, sibling);\n        }\n        sibling.parent = me.parent;\n      } while (me.children.length > 10)\n      me.parent.maybeSpill();\n    },\n\n    iterN: function(at, n, op) {\n      var this$1 = this;\n\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this$1.children[i], sz = child.chunkSize();\n        if (at < sz) {\n          var used = Math.min(n, sz - at);\n          if (child.iterN(at, used, op)) { return true }\n          if ((n -= used) == 0) { break }\n          at = 0;\n        } else { at -= sz; }\n      }\n    }\n  };\n\n  // Line widgets are block elements displayed above or below a line.\n\n  var LineWidget = function(doc, node, options) {\n    var this$1 = this;\n\n    if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))\n      { this$1[opt] = options[opt]; } } }\n    this.doc = doc;\n    this.node = node;\n  };\n\n  LineWidget.prototype.clear = function () {\n      var this$1 = this;\n\n    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);\n    if (no == null || !ws) { return }\n    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } }\n    if (!ws.length) { line.widgets = null; }\n    var height = widgetHeight(this);\n    updateLineHeight(line, Math.max(0, line.height - height));\n    if (cm) {\n      runInOp(cm, function () {\n        adjustScrollWhenAboveVisible(cm, line, -height);\n        regLineChange(cm, no, \"widget\");\n      });\n      signalLater(cm, \"lineWidgetCleared\", cm, this, no);\n    }\n  };\n\n  LineWidget.prototype.changed = function () {\n      var this$1 = this;\n\n    var oldH = this.height, cm = this.doc.cm, line = this.line;\n    this.height = null;\n    var diff = widgetHeight(this) - oldH;\n    if (!diff) { return }\n    if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }\n    if (cm) {\n      runInOp(cm, function () {\n        cm.curOp.forceUpdate = true;\n        adjustScrollWhenAboveVisible(cm, line, diff);\n        signalLater(cm, \"lineWidgetChanged\", cm, this$1, lineNo(line));\n      });\n    }\n  };\n  eventMixin(LineWidget);\n\n  function adjustScrollWhenAboveVisible(cm, line, diff) {\n    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))\n      { addToScrollTop(cm, diff); }\n  }\n\n  function addLineWidget(doc, handle, node, options) {\n    var widget = new LineWidget(doc, node, options);\n    var cm = doc.cm;\n    if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }\n    changeLine(doc, handle, \"widget\", function (line) {\n      var widgets = line.widgets || (line.widgets = []);\n      if (widget.insertAt == null) { widgets.push(widget); }\n      else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }\n      widget.line = line;\n      if (cm && !lineIsHidden(doc, line)) {\n        var aboveVisible = heightAtLine(line) < doc.scrollTop;\n        updateLineHeight(line, line.height + widgetHeight(widget));\n        if (aboveVisible) { addToScrollTop(cm, widget.height); }\n        cm.curOp.forceUpdate = true;\n      }\n      return true\n    });\n    if (cm) { signalLater(cm, \"lineWidgetAdded\", cm, widget, typeof handle == \"number\" ? handle : lineNo(handle)); }\n    return widget\n  }\n\n  // TEXTMARKERS\n\n  // Created with markText and setBookmark methods. A TextMarker is a\n  // handle that can be used to clear or find a marked position in the\n  // document. Line objects hold arrays (markedSpans) containing\n  // {from, to, marker} object pointing to such marker objects, and\n  // indicating that such a marker is present on that line. Multiple\n  // lines may point to the same marker when it spans across lines.\n  // The spans will have null for their from/to properties when the\n  // marker continues beyond the start/end of the line. Markers have\n  // links back to the lines they currently touch.\n\n  // Collapsed markers have unique ids, in order to be able to order\n  // them, which is needed for uniquely determining an outer marker\n  // when they overlap (they may nest, but not partially overlap).\n  var nextMarkerId = 0;\n\n  var TextMarker = function(doc, type) {\n    this.lines = [];\n    this.type = type;\n    this.doc = doc;\n    this.id = ++nextMarkerId;\n  };\n\n  // Clear the marker.\n  TextMarker.prototype.clear = function () {\n      var this$1 = this;\n\n    if (this.explicitlyCleared) { return }\n    var cm = this.doc.cm, withOp = cm && !cm.curOp;\n    if (withOp) { startOperation(cm); }\n    if (hasHandler(this, \"clear\")) {\n      var found = this.find();\n      if (found) { signalLater(this, \"clear\", found.from, found.to); }\n    }\n    var min = null, max = null;\n    for (var i = 0; i < this.lines.length; ++i) {\n      var line = this$1.lines[i];\n      var span = getMarkedSpanFor(line.markedSpans, this$1);\n      if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), \"text\"); }\n      else if (cm) {\n        if (span.to != null) { max = lineNo(line); }\n        if (span.from != null) { min = lineNo(line); }\n      }\n      line.markedSpans = removeMarkedSpan(line.markedSpans, span);\n      if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)\n        { updateLineHeight(line, textHeight(cm.display)); }\n    }\n    if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {\n      var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual);\n      if (len > cm.display.maxLineLength) {\n        cm.display.maxLine = visual;\n        cm.display.maxLineLength = len;\n        cm.display.maxLineChanged = true;\n      }\n    } }\n\n    if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }\n    this.lines.length = 0;\n    this.explicitlyCleared = true;\n    if (this.atomic && this.doc.cantEdit) {\n      this.doc.cantEdit = false;\n      if (cm) { reCheckSelection(cm.doc); }\n    }\n    if (cm) { signalLater(cm, \"markerCleared\", cm, this, min, max); }\n    if (withOp) { endOperation(cm); }\n    if (this.parent) { this.parent.clear(); }\n  };\n\n  // Find the position of the marker in the document. Returns a {from,\n  // to} object by default. Side can be passed to get a specific side\n  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the\n  // Pos objects returned contain a line object, rather than a line\n  // number (used to prevent looking up the same line twice).\n  TextMarker.prototype.find = function (side, lineObj) {\n      var this$1 = this;\n\n    if (side == null && this.type == \"bookmark\") { side = 1; }\n    var from, to;\n    for (var i = 0; i < this.lines.length; ++i) {\n      var line = this$1.lines[i];\n      var span = getMarkedSpanFor(line.markedSpans, this$1);\n      if (span.from != null) {\n        from = Pos(lineObj ? line : lineNo(line), span.from);\n        if (side == -1) { return from }\n      }\n      if (span.to != null) {\n        to = Pos(lineObj ? line : lineNo(line), span.to);\n        if (side == 1) { return to }\n      }\n    }\n    return from && {from: from, to: to}\n  };\n\n  // Signals that the marker's widget changed, and surrounding layout\n  // should be recomputed.\n  TextMarker.prototype.changed = function () {\n      var this$1 = this;\n\n    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;\n    if (!pos || !cm) { return }\n    runInOp(cm, function () {\n      var line = pos.line, lineN = lineNo(pos.line);\n      var view = findViewForLine(cm, lineN);\n      if (view) {\n        clearLineMeasurementCacheFor(view);\n        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;\n      }\n      cm.curOp.updateMaxLine = true;\n      if (!lineIsHidden(widget.doc, line) && widget.height != null) {\n        var oldHeight = widget.height;\n        widget.height = null;\n        var dHeight = widgetHeight(widget) - oldHeight;\n        if (dHeight)\n          { updateLineHeight(line, line.height + dHeight); }\n      }\n      signalLater(cm, \"markerChanged\", cm, this$1);\n    });\n  };\n\n  TextMarker.prototype.attachLine = function (line) {\n    if (!this.lines.length && this.doc.cm) {\n      var op = this.doc.cm.curOp;\n      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)\n        { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }\n    }\n    this.lines.push(line);\n  };\n\n  TextMarker.prototype.detachLine = function (line) {\n    this.lines.splice(indexOf(this.lines, line), 1);\n    if (!this.lines.length && this.doc.cm) {\n      var op = this.doc.cm.curOp\n      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);\n    }\n  };\n  eventMixin(TextMarker);\n\n  // Create a marker, wire it up to the right lines, and\n  function markText(doc, from, to, options, type) {\n    // Shared markers (across linked documents) are handled separately\n    // (markTextShared will call out to this again, once per\n    // document).\n    if (options && options.shared) { return markTextShared(doc, from, to, options, type) }\n    // Ensure we are in an operation.\n    if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }\n\n    var marker = new TextMarker(doc, type), diff = cmp(from, to);\n    if (options) { copyObj(options, marker, false); }\n    // Don't connect empty markers unless clearWhenEmpty is false\n    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)\n      { return marker }\n    if (marker.replacedWith) {\n      // Showing up as a widget implies collapsed (widget replaces text)\n      marker.collapsed = true;\n      marker.widgetNode = eltP(\"span\", [marker.replacedWith], \"CodeMirror-widget\");\n      if (!options.handleMouseEvents) { marker.widgetNode.setAttribute(\"cm-ignore-events\", \"true\"); }\n      if (options.insertLeft) { marker.widgetNode.insertLeft = true; }\n    }\n    if (marker.collapsed) {\n      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||\n          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))\n        { throw new Error(\"Inserting collapsed marker partially overlapping an existing one\") }\n      seeCollapsedSpans();\n    }\n\n    if (marker.addToHistory)\n      { addChangeToHistory(doc, {from: from, to: to, origin: \"markText\"}, doc.sel, NaN); }\n\n    var curLine = from.line, cm = doc.cm, updateMaxLine;\n    doc.iter(curLine, to.line + 1, function (line) {\n      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)\n        { updateMaxLine = true; }\n      if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }\n      addMarkedSpan(line, new MarkedSpan(marker,\n                                         curLine == from.line ? from.ch : null,\n                                         curLine == to.line ? to.ch : null));\n      ++curLine;\n    });\n    // lineIsHidden depends on the presence of the spans, so needs a second pass\n    if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {\n      if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }\n    }); }\n\n    if (marker.clearOnEnter) { on(marker, \"beforeCursorEnter\", function () { return marker.clear(); }); }\n\n    if (marker.readOnly) {\n      seeReadOnlySpans();\n      if (doc.history.done.length || doc.history.undone.length)\n        { doc.clearHistory(); }\n    }\n    if (marker.collapsed) {\n      marker.id = ++nextMarkerId;\n      marker.atomic = true;\n    }\n    if (cm) {\n      // Sync editor state\n      if (updateMaxLine) { cm.curOp.updateMaxLine = true; }\n      if (marker.collapsed)\n        { regChange(cm, from.line, to.line + 1); }\n      else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||\n               marker.attributes || marker.title)\n        { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, \"text\"); } }\n      if (marker.atomic) { reCheckSelection(cm.doc); }\n      signalLater(cm, \"markerAdded\", cm, marker);\n    }\n    return marker\n  }\n\n  // SHARED TEXTMARKERS\n\n  // A shared marker spans multiple linked documents. It is\n  // implemented as a meta-marker-object controlling multiple normal\n  // markers.\n  var SharedTextMarker = function(markers, primary) {\n    var this$1 = this;\n\n    this.markers = markers;\n    this.primary = primary;\n    for (var i = 0; i < markers.length; ++i)\n      { markers[i].parent = this$1; }\n  };\n\n  SharedTextMarker.prototype.clear = function () {\n      var this$1 = this;\n\n    if (this.explicitlyCleared) { return }\n    this.explicitlyCleared = true;\n    for (var i = 0; i < this.markers.length; ++i)\n      { this$1.markers[i].clear(); }\n    signalLater(this, \"clear\");\n  };\n\n  SharedTextMarker.prototype.find = function (side, lineObj) {\n    return this.primary.find(side, lineObj)\n  };\n  eventMixin(SharedTextMarker);\n\n  function markTextShared(doc, from, to, options, type) {\n    options = copyObj(options);\n    options.shared = false;\n    var markers = [markText(doc, from, to, options, type)], primary = markers[0];\n    var widget = options.widgetNode;\n    linkedDocs(doc, function (doc) {\n      if (widget) { options.widgetNode = widget.cloneNode(true); }\n      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));\n      for (var i = 0; i < doc.linked.length; ++i)\n        { if (doc.linked[i].isParent) { return } }\n      primary = lst(markers);\n    });\n    return new SharedTextMarker(markers, primary)\n  }\n\n  function findSharedMarkers(doc) {\n    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })\n  }\n\n  function copySharedMarkers(doc, markers) {\n    for (var i = 0; i < markers.length; i++) {\n      var marker = markers[i], pos = marker.find();\n      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);\n      if (cmp(mFrom, mTo)) {\n        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);\n        marker.markers.push(subMark);\n        subMark.parent = marker;\n      }\n    }\n  }\n\n  function detachSharedMarkers(markers) {\n    var loop = function ( i ) {\n      var marker = markers[i], linked = [marker.primary.doc];\n      linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });\n      for (var j = 0; j < marker.markers.length; j++) {\n        var subMarker = marker.markers[j];\n        if (indexOf(linked, subMarker.doc) == -1) {\n          subMarker.parent = null;\n          marker.markers.splice(j--, 1);\n        }\n      }\n    };\n\n    for (var i = 0; i < markers.length; i++) loop( i );\n  }\n\n  var nextDocId = 0;\n  var Doc = function(text, mode, firstLine, lineSep, direction) {\n    if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }\n    if (firstLine == null) { firstLine = 0; }\n\n    BranchChunk.call(this, [new LeafChunk([new Line(\"\", null)])]);\n    this.first = firstLine;\n    this.scrollTop = this.scrollLeft = 0;\n    this.cantEdit = false;\n    this.cleanGeneration = 1;\n    this.modeFrontier = this.highlightFrontier = firstLine;\n    var start = Pos(firstLine, 0);\n    this.sel = simpleSelection(start);\n    this.history = new History(null);\n    this.id = ++nextDocId;\n    this.modeOption = mode;\n    this.lineSep = lineSep;\n    this.direction = (direction == \"rtl\") ? \"rtl\" : \"ltr\";\n    this.extend = false;\n\n    if (typeof text == \"string\") { text = this.splitLines(text); }\n    updateDoc(this, {from: start, to: start, text: text});\n    setSelection(this, simpleSelection(start), sel_dontScroll);\n  };\n\n  Doc.prototype = createObj(BranchChunk.prototype, {\n    constructor: Doc,\n    // Iterate over the document. Supports two forms -- with only one\n    // argument, it calls that for each line in the document. With\n    // three, it iterates over the range given by the first two (with\n    // the second being non-inclusive).\n    iter: function(from, to, op) {\n      if (op) { this.iterN(from - this.first, to - from, op); }\n      else { this.iterN(this.first, this.first + this.size, from); }\n    },\n\n    // Non-public interface for adding and removing lines.\n    insert: function(at, lines) {\n      var height = 0;\n      for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }\n      this.insertInner(at - this.first, lines, height);\n    },\n    remove: function(at, n) { this.removeInner(at - this.first, n); },\n\n    // From here, the methods are part of the public interface. Most\n    // are also available from CodeMirror (editor) instances.\n\n    getValue: function(lineSep) {\n      var lines = getLines(this, this.first, this.first + this.size);\n      if (lineSep === false) { return lines }\n      return lines.join(lineSep || this.lineSeparator())\n    },\n    setValue: docMethodOp(function(code) {\n      var top = Pos(this.first, 0), last = this.first + this.size - 1;\n      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),\n                        text: this.splitLines(code), origin: \"setValue\", full: true}, true);\n      if (this.cm) { scrollToCoords(this.cm, 0, 0); }\n      setSelection(this, simpleSelection(top), sel_dontScroll);\n    }),\n    replaceRange: function(code, from, to, origin) {\n      from = clipPos(this, from);\n      to = to ? clipPos(this, to) : from;\n      replaceRange(this, code, from, to, origin);\n    },\n    getRange: function(from, to, lineSep) {\n      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));\n      if (lineSep === false) { return lines }\n      return lines.join(lineSep || this.lineSeparator())\n    },\n\n    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},\n\n    getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},\n    getLineNumber: function(line) {return lineNo(line)},\n\n    getLineHandleVisualStart: function(line) {\n      if (typeof line == \"number\") { line = getLine(this, line); }\n      return visualLine(line)\n    },\n\n    lineCount: function() {return this.size},\n    firstLine: function() {return this.first},\n    lastLine: function() {return this.first + this.size - 1},\n\n    clipPos: function(pos) {return clipPos(this, pos)},\n\n    getCursor: function(start) {\n      var range$$1 = this.sel.primary(), pos;\n      if (start == null || start == \"head\") { pos = range$$1.head; }\n      else if (start == \"anchor\") { pos = range$$1.anchor; }\n      else if (start == \"end\" || start == \"to\" || start === false) { pos = range$$1.to(); }\n      else { pos = range$$1.from(); }\n      return pos\n    },\n    listSelections: function() { return this.sel.ranges },\n    somethingSelected: function() {return this.sel.somethingSelected()},\n\n    setCursor: docMethodOp(function(line, ch, options) {\n      setSimpleSelection(this, clipPos(this, typeof line == \"number\" ? Pos(line, ch || 0) : line), null, options);\n    }),\n    setSelection: docMethodOp(function(anchor, head, options) {\n      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);\n    }),\n    extendSelection: docMethodOp(function(head, other, options) {\n      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);\n    }),\n    extendSelections: docMethodOp(function(heads, options) {\n      extendSelections(this, clipPosArray(this, heads), options);\n    }),\n    extendSelectionsBy: docMethodOp(function(f, options) {\n      var heads = map(this.sel.ranges, f);\n      extendSelections(this, clipPosArray(this, heads), options);\n    }),\n    setSelections: docMethodOp(function(ranges, primary, options) {\n      var this$1 = this;\n\n      if (!ranges.length) { return }\n      var out = [];\n      for (var i = 0; i < ranges.length; i++)\n        { out[i] = new Range(clipPos(this$1, ranges[i].anchor),\n                           clipPos(this$1, ranges[i].head)); }\n      if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }\n      setSelection(this, normalizeSelection(this.cm, out, primary), options);\n    }),\n    addSelection: docMethodOp(function(anchor, head, options) {\n      var ranges = this.sel.ranges.slice(0);\n      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));\n      setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);\n    }),\n\n    getSelection: function(lineSep) {\n      var this$1 = this;\n\n      var ranges = this.sel.ranges, lines;\n      for (var i = 0; i < ranges.length; i++) {\n        var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());\n        lines = lines ? lines.concat(sel) : sel;\n      }\n      if (lineSep === false) { return lines }\n      else { return lines.join(lineSep || this.lineSeparator()) }\n    },\n    getSelections: function(lineSep) {\n      var this$1 = this;\n\n      var parts = [], ranges = this.sel.ranges;\n      for (var i = 0; i < ranges.length; i++) {\n        var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());\n        if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); }\n        parts[i] = sel;\n      }\n      return parts\n    },\n    replaceSelection: function(code, collapse, origin) {\n      var dup = [];\n      for (var i = 0; i < this.sel.ranges.length; i++)\n        { dup[i] = code; }\n      this.replaceSelections(dup, collapse, origin || \"+input\");\n    },\n    replaceSelections: docMethodOp(function(code, collapse, origin) {\n      var this$1 = this;\n\n      var changes = [], sel = this.sel;\n      for (var i = 0; i < sel.ranges.length; i++) {\n        var range$$1 = sel.ranges[i];\n        changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin};\n      }\n      var newSel = collapse && collapse != \"end\" && computeReplacedSel(this, changes, collapse);\n      for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)\n        { makeChange(this$1, changes[i$1]); }\n      if (newSel) { setSelectionReplaceHistory(this, newSel); }\n      else if (this.cm) { ensureCursorVisible(this.cm); }\n    }),\n    undo: docMethodOp(function() {makeChangeFromHistory(this, \"undo\");}),\n    redo: docMethodOp(function() {makeChangeFromHistory(this, \"redo\");}),\n    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"undo\", true);}),\n    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"redo\", true);}),\n\n    setExtending: function(val) {this.extend = val;},\n    getExtending: function() {return this.extend},\n\n    historySize: function() {\n      var hist = this.history, done = 0, undone = 0;\n      for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }\n      for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }\n      return {undo: done, redo: undone}\n    },\n    clearHistory: function() {this.history = new History(this.history.maxGeneration);},\n\n    markClean: function() {\n      this.cleanGeneration = this.changeGeneration(true);\n    },\n    changeGeneration: function(forceSplit) {\n      if (forceSplit)\n        { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }\n      return this.history.generation\n    },\n    isClean: function (gen) {\n      return this.history.generation == (gen || this.cleanGeneration)\n    },\n\n    getHistory: function() {\n      return {done: copyHistoryArray(this.history.done),\n              undone: copyHistoryArray(this.history.undone)}\n    },\n    setHistory: function(histData) {\n      var hist = this.history = new History(this.history.maxGeneration);\n      hist.done = copyHistoryArray(histData.done.slice(0), null, true);\n      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);\n    },\n\n    setGutterMarker: docMethodOp(function(line, gutterID, value) {\n      return changeLine(this, line, \"gutter\", function (line) {\n        var markers = line.gutterMarkers || (line.gutterMarkers = {});\n        markers[gutterID] = value;\n        if (!value && isEmpty(markers)) { line.gutterMarkers = null; }\n        return true\n      })\n    }),\n\n    clearGutter: docMethodOp(function(gutterID) {\n      var this$1 = this;\n\n      this.iter(function (line) {\n        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {\n          changeLine(this$1, line, \"gutter\", function () {\n            line.gutterMarkers[gutterID] = null;\n            if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }\n            return true\n          });\n        }\n      });\n    }),\n\n    lineInfo: function(line) {\n      var n;\n      if (typeof line == \"number\") {\n        if (!isLine(this, line)) { return null }\n        n = line;\n        line = getLine(this, line);\n        if (!line) { return null }\n      } else {\n        n = lineNo(line);\n        if (n == null) { return null }\n      }\n      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,\n              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,\n              widgets: line.widgets}\n    },\n\n    addLineClass: docMethodOp(function(handle, where, cls) {\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n        var prop = where == \"text\" ? \"textClass\"\n                 : where == \"background\" ? \"bgClass\"\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\n        if (!line[prop]) { line[prop] = cls; }\n        else if (classTest(cls).test(line[prop])) { return false }\n        else { line[prop] += \" \" + cls; }\n        return true\n      })\n    }),\n    removeLineClass: docMethodOp(function(handle, where, cls) {\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n        var prop = where == \"text\" ? \"textClass\"\n                 : where == \"background\" ? \"bgClass\"\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\n        var cur = line[prop];\n        if (!cur) { return false }\n        else if (cls == null) { line[prop] = null; }\n        else {\n          var found = cur.match(classTest(cls));\n          if (!found) { return false }\n          var end = found.index + found[0].length;\n          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? \"\" : \" \") + cur.slice(end) || null;\n        }\n        return true\n      })\n    }),\n\n    addLineWidget: docMethodOp(function(handle, node, options) {\n      return addLineWidget(this, handle, node, options)\n    }),\n    removeLineWidget: function(widget) { widget.clear(); },\n\n    markText: function(from, to, options) {\n      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || \"range\")\n    },\n    setBookmark: function(pos, options) {\n      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),\n                      insertLeft: options && options.insertLeft,\n                      clearWhenEmpty: false, shared: options && options.shared,\n                      handleMouseEvents: options && options.handleMouseEvents};\n      pos = clipPos(this, pos);\n      return markText(this, pos, pos, realOpts, \"bookmark\")\n    },\n    findMarksAt: function(pos) {\n      pos = clipPos(this, pos);\n      var markers = [], spans = getLine(this, pos.line).markedSpans;\n      if (spans) { for (var i = 0; i < spans.length; ++i) {\n        var span = spans[i];\n        if ((span.from == null || span.from <= pos.ch) &&\n            (span.to == null || span.to >= pos.ch))\n          { markers.push(span.marker.parent || span.marker); }\n      } }\n      return markers\n    },\n    findMarks: function(from, to, filter) {\n      from = clipPos(this, from); to = clipPos(this, to);\n      var found = [], lineNo$$1 = from.line;\n      this.iter(from.line, to.line + 1, function (line) {\n        var spans = line.markedSpans;\n        if (spans) { for (var i = 0; i < spans.length; i++) {\n          var span = spans[i];\n          if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to ||\n                span.from == null && lineNo$$1 != from.line ||\n                span.from != null && lineNo$$1 == to.line && span.from >= to.ch) &&\n              (!filter || filter(span.marker)))\n            { found.push(span.marker.parent || span.marker); }\n        } }\n        ++lineNo$$1;\n      });\n      return found\n    },\n    getAllMarks: function() {\n      var markers = [];\n      this.iter(function (line) {\n        var sps = line.markedSpans;\n        if (sps) { for (var i = 0; i < sps.length; ++i)\n          { if (sps[i].from != null) { markers.push(sps[i].marker); } } }\n      });\n      return markers\n    },\n\n    posFromIndex: function(off) {\n      var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length;\n      this.iter(function (line) {\n        var sz = line.text.length + sepSize;\n        if (sz > off) { ch = off; return true }\n        off -= sz;\n        ++lineNo$$1;\n      });\n      return clipPos(this, Pos(lineNo$$1, ch))\n    },\n    indexFromPos: function (coords) {\n      coords = clipPos(this, coords);\n      var index = coords.ch;\n      if (coords.line < this.first || coords.ch < 0) { return 0 }\n      var sepSize = this.lineSeparator().length;\n      this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value\n        index += line.text.length + sepSize;\n      });\n      return index\n    },\n\n    copy: function(copyHistory) {\n      var doc = new Doc(getLines(this, this.first, this.first + this.size),\n                        this.modeOption, this.first, this.lineSep, this.direction);\n      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;\n      doc.sel = this.sel;\n      doc.extend = false;\n      if (copyHistory) {\n        doc.history.undoDepth = this.history.undoDepth;\n        doc.setHistory(this.getHistory());\n      }\n      return doc\n    },\n\n    linkedDoc: function(options) {\n      if (!options) { options = {}; }\n      var from = this.first, to = this.first + this.size;\n      if (options.from != null && options.from > from) { from = options.from; }\n      if (options.to != null && options.to < to) { to = options.to; }\n      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);\n      if (options.sharedHist) { copy.history = this.history\n      ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});\n      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];\n      copySharedMarkers(copy, findSharedMarkers(this));\n      return copy\n    },\n    unlinkDoc: function(other) {\n      var this$1 = this;\n\n      if (other instanceof CodeMirror) { other = other.doc; }\n      if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {\n        var link = this$1.linked[i];\n        if (link.doc != other) { continue }\n        this$1.linked.splice(i, 1);\n        other.unlinkDoc(this$1);\n        detachSharedMarkers(findSharedMarkers(this$1));\n        break\n      } }\n      // If the histories were shared, split them again\n      if (other.history == this.history) {\n        var splitIds = [other.id];\n        linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);\n        other.history = new History(null);\n        other.history.done = copyHistoryArray(this.history.done, splitIds);\n        other.history.undone = copyHistoryArray(this.history.undone, splitIds);\n      }\n    },\n    iterLinkedDocs: function(f) {linkedDocs(this, f);},\n\n    getMode: function() {return this.mode},\n    getEditor: function() {return this.cm},\n\n    splitLines: function(str) {\n      if (this.lineSep) { return str.split(this.lineSep) }\n      return splitLinesAuto(str)\n    },\n    lineSeparator: function() { return this.lineSep || \"\\n\" },\n\n    setDirection: docMethodOp(function (dir) {\n      if (dir != \"rtl\") { dir = \"ltr\"; }\n      if (dir == this.direction) { return }\n      this.direction = dir;\n      this.iter(function (line) { return line.order = null; });\n      if (this.cm) { directionChanged(this.cm); }\n    })\n  });\n\n  // Public alias.\n  Doc.prototype.eachLine = Doc.prototype.iter;\n\n  // Kludge to work around strange IE behavior where it'll sometimes\n  // re-fire a series of drag-related events right after the drop (#1551)\n  var lastDrop = 0;\n\n  function onDrop(e) {\n    var cm = this;\n    clearDragCursor(cm);\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))\n      { return }\n    e_preventDefault(e);\n    if (ie) { lastDrop = +new Date; }\n    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;\n    if (!pos || cm.isReadOnly()) { return }\n    // Might be a file drop, in which case we simply extract the text\n    // and insert it.\n    if (files && files.length && window.FileReader && window.File) {\n      var n = files.length, text = Array(n), read = 0;\n      var loadFile = function (file, i) {\n        if (cm.options.allowDropFileTypes &&\n            indexOf(cm.options.allowDropFileTypes, file.type) == -1)\n          { return }\n\n        var reader = new FileReader;\n        reader.onload = operation(cm, function () {\n          var content = reader.result;\n          if (/[\\x00-\\x08\\x0e-\\x1f]{2}/.test(content)) { content = \"\"; }\n          text[i] = content;\n          if (++read == n) {\n            pos = clipPos(cm.doc, pos);\n            var change = {from: pos, to: pos,\n                          text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),\n                          origin: \"paste\"};\n            makeChange(cm.doc, change);\n            setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));\n          }\n        });\n        reader.readAsText(file);\n      };\n      for (var i = 0; i < n; ++i) { loadFile(files[i], i); }\n    } else { // Normal drop\n      // Don't do a replace if the drop happened inside of the selected text.\n      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {\n        cm.state.draggingText(e);\n        // Ensure the editor is re-focused\n        setTimeout(function () { return cm.display.input.focus(); }, 20);\n        return\n      }\n      try {\n        var text$1 = e.dataTransfer.getData(\"Text\");\n        if (text$1) {\n          var selected;\n          if (cm.state.draggingText && !cm.state.draggingText.copy)\n            { selected = cm.listSelections(); }\n          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));\n          if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)\n            { replaceRange(cm.doc, \"\", selected[i$1].anchor, selected[i$1].head, \"drag\"); } }\n          cm.replaceSelection(text$1, \"around\", \"paste\");\n          cm.display.input.focus();\n        }\n      }\n      catch(e){}\n    }\n  }\n\n  function onDragStart(cm, e) {\n    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }\n\n    e.dataTransfer.setData(\"Text\", cm.getSelection());\n    e.dataTransfer.effectAllowed = \"copyMove\";\n\n    // Use dummy image instead of default browsers image.\n    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.\n    if (e.dataTransfer.setDragImage && !safari) {\n      var img = elt(\"img\", null, null, \"position: fixed; left: 0; top: 0;\");\n      img.src = \"data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\";\n      if (presto) {\n        img.width = img.height = 1;\n        cm.display.wrapper.appendChild(img);\n        // Force a relayout, or Opera won't use our image for some obscure reason\n        img._top = img.offsetTop;\n      }\n      e.dataTransfer.setDragImage(img, 0, 0);\n      if (presto) { img.parentNode.removeChild(img); }\n    }\n  }\n\n  function onDragOver(cm, e) {\n    var pos = posFromMouse(cm, e);\n    if (!pos) { return }\n    var frag = document.createDocumentFragment();\n    drawSelectionCursor(cm, pos, frag);\n    if (!cm.display.dragCursor) {\n      cm.display.dragCursor = elt(\"div\", null, \"CodeMirror-cursors CodeMirror-dragcursors\");\n      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);\n    }\n    removeChildrenAndAdd(cm.display.dragCursor, frag);\n  }\n\n  function clearDragCursor(cm) {\n    if (cm.display.dragCursor) {\n      cm.display.lineSpace.removeChild(cm.display.dragCursor);\n      cm.display.dragCursor = null;\n    }\n  }\n\n  // These must be handled carefully, because naively registering a\n  // handler for each editor will cause the editors to never be\n  // garbage collected.\n\n  function forEachCodeMirror(f) {\n    if (!document.getElementsByClassName) { return }\n    var byClass = document.getElementsByClassName(\"CodeMirror\"), editors = [];\n    for (var i = 0; i < byClass.length; i++) {\n      var cm = byClass[i].CodeMirror;\n      if (cm) { editors.push(cm); }\n    }\n    if (editors.length) { editors[0].operation(function () {\n      for (var i = 0; i < editors.length; i++) { f(editors[i]); }\n    }); }\n  }\n\n  var globalsRegistered = false;\n  function ensureGlobalHandlers() {\n    if (globalsRegistered) { return }\n    registerGlobalHandlers();\n    globalsRegistered = true;\n  }\n  function registerGlobalHandlers() {\n    // When the window resizes, we need to refresh active editors.\n    var resizeTimer;\n    on(window, \"resize\", function () {\n      if (resizeTimer == null) { resizeTimer = setTimeout(function () {\n        resizeTimer = null;\n        forEachCodeMirror(onResize);\n      }, 100); }\n    });\n    // When the window loses focus, we want to show the editor as blurred\n    on(window, \"blur\", function () { return forEachCodeMirror(onBlur); });\n  }\n  // Called when the window resizes\n  function onResize(cm) {\n    var d = cm.display;\n    // Might be a text scaling operation, clear size caches.\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\n    d.scrollbarsClipped = false;\n    cm.setSize();\n  }\n\n  var keyNames = {\n    3: \"Pause\", 8: \"Backspace\", 9: \"Tab\", 13: \"Enter\", 16: \"Shift\", 17: \"Ctrl\", 18: \"Alt\",\n    19: \"Pause\", 20: \"CapsLock\", 27: \"Esc\", 32: \"Space\", 33: \"PageUp\", 34: \"PageDown\", 35: \"End\",\n    36: \"Home\", 37: \"Left\", 38: \"Up\", 39: \"Right\", 40: \"Down\", 44: \"PrintScrn\", 45: \"Insert\",\n    46: \"Delete\", 59: \";\", 61: \"=\", 91: \"Mod\", 92: \"Mod\", 93: \"Mod\",\n    106: \"*\", 107: \"=\", 109: \"-\", 110: \".\", 111: \"/\", 145: \"ScrollLock\",\n    173: \"-\", 186: \";\", 187: \"=\", 188: \",\", 189: \"-\", 190: \".\", 191: \"/\", 192: \"`\", 219: \"[\", 220: \"\\\\\",\n    221: \"]\", 222: \"'\", 63232: \"Up\", 63233: \"Down\", 63234: \"Left\", 63235: \"Right\", 63272: \"Delete\",\n    63273: \"Home\", 63275: \"End\", 63276: \"PageUp\", 63277: \"PageDown\", 63302: \"Insert\"\n  };\n\n  // Number keys\n  for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }\n  // Alphabetic keys\n  for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }\n  // Function keys\n  for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = \"F\" + i$2; }\n\n  var keyMap = {};\n\n  keyMap.basic = {\n    \"Left\": \"goCharLeft\", \"Right\": \"goCharRight\", \"Up\": \"goLineUp\", \"Down\": \"goLineDown\",\n    \"End\": \"goLineEnd\", \"Home\": \"goLineStartSmart\", \"PageUp\": \"goPageUp\", \"PageDown\": \"goPageDown\",\n    \"Delete\": \"delCharAfter\", \"Backspace\": \"delCharBefore\", \"Shift-Backspace\": \"delCharBefore\",\n    \"Tab\": \"defaultTab\", \"Shift-Tab\": \"indentAuto\",\n    \"Enter\": \"newlineAndIndent\", \"Insert\": \"toggleOverwrite\",\n    \"Esc\": \"singleSelection\"\n  };\n  // Note that the save and find-related commands aren't defined by\n  // default. User code or addons can define them. Unknown commands\n  // are simply ignored.\n  keyMap.pcDefault = {\n    \"Ctrl-A\": \"selectAll\", \"Ctrl-D\": \"deleteLine\", \"Ctrl-Z\": \"undo\", \"Shift-Ctrl-Z\": \"redo\", \"Ctrl-Y\": \"redo\",\n    \"Ctrl-Home\": \"goDocStart\", \"Ctrl-End\": \"goDocEnd\", \"Ctrl-Up\": \"goLineUp\", \"Ctrl-Down\": \"goLineDown\",\n    \"Ctrl-Left\": \"goGroupLeft\", \"Ctrl-Right\": \"goGroupRight\", \"Alt-Left\": \"goLineStart\", \"Alt-Right\": \"goLineEnd\",\n    \"Ctrl-Backspace\": \"delGroupBefore\", \"Ctrl-Delete\": \"delGroupAfter\", \"Ctrl-S\": \"save\", \"Ctrl-F\": \"find\",\n    \"Ctrl-G\": \"findNext\", \"Shift-Ctrl-G\": \"findPrev\", \"Shift-Ctrl-F\": \"replace\", \"Shift-Ctrl-R\": \"replaceAll\",\n    \"Ctrl-[\": \"indentLess\", \"Ctrl-]\": \"indentMore\",\n    \"Ctrl-U\": \"undoSelection\", \"Shift-Ctrl-U\": \"redoSelection\", \"Alt-U\": \"redoSelection\",\n    \"fallthrough\": \"basic\"\n  };\n  // Very basic readline/emacs-style bindings, which are standard on Mac.\n  keyMap.emacsy = {\n    \"Ctrl-F\": \"goCharRight\", \"Ctrl-B\": \"goCharLeft\", \"Ctrl-P\": \"goLineUp\", \"Ctrl-N\": \"goLineDown\",\n    \"Alt-F\": \"goWordRight\", \"Alt-B\": \"goWordLeft\", \"Ctrl-A\": \"goLineStart\", \"Ctrl-E\": \"goLineEnd\",\n    \"Ctrl-V\": \"goPageDown\", \"Shift-Ctrl-V\": \"goPageUp\", \"Ctrl-D\": \"delCharAfter\", \"Ctrl-H\": \"delCharBefore\",\n    \"Alt-D\": \"delWordAfter\", \"Alt-Backspace\": \"delWordBefore\", \"Ctrl-K\": \"killLine\", \"Ctrl-T\": \"transposeChars\",\n    \"Ctrl-O\": \"openLine\"\n  };\n  keyMap.macDefault = {\n    \"Cmd-A\": \"selectAll\", \"Cmd-D\": \"deleteLine\", \"Cmd-Z\": \"undo\", \"Shift-Cmd-Z\": \"redo\", \"Cmd-Y\": \"redo\",\n    \"Cmd-Home\": \"goDocStart\", \"Cmd-Up\": \"goDocStart\", \"Cmd-End\": \"goDocEnd\", \"Cmd-Down\": \"goDocEnd\", \"Alt-Left\": \"goGroupLeft\",\n    \"Alt-Right\": \"goGroupRight\", \"Cmd-Left\": \"goLineLeft\", \"Cmd-Right\": \"goLineRight\", \"Alt-Backspace\": \"delGroupBefore\",\n    \"Ctrl-Alt-Backspace\": \"delGroupAfter\", \"Alt-Delete\": \"delGroupAfter\", \"Cmd-S\": \"save\", \"Cmd-F\": \"find\",\n    \"Cmd-G\": \"findNext\", \"Shift-Cmd-G\": \"findPrev\", \"Cmd-Alt-F\": \"replace\", \"Shift-Cmd-Alt-F\": \"replaceAll\",\n    \"Cmd-[\": \"indentLess\", \"Cmd-]\": \"indentMore\", \"Cmd-Backspace\": \"delWrappedLineLeft\", \"Cmd-Delete\": \"delWrappedLineRight\",\n    \"Cmd-U\": \"undoSelection\", \"Shift-Cmd-U\": \"redoSelection\", \"Ctrl-Up\": \"goDocStart\", \"Ctrl-Down\": \"goDocEnd\",\n    \"fallthrough\": [\"basic\", \"emacsy\"]\n  };\n  keyMap[\"default\"] = mac ? keyMap.macDefault : keyMap.pcDefault;\n\n  // KEYMAP DISPATCH\n\n  function normalizeKeyName(name) {\n    var parts = name.split(/-(?!$)/);\n    name = parts[parts.length - 1];\n    var alt, ctrl, shift, cmd;\n    for (var i = 0; i < parts.length - 1; i++) {\n      var mod = parts[i];\n      if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }\n      else if (/^a(lt)?$/i.test(mod)) { alt = true; }\n      else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }\n      else if (/^s(hift)?$/i.test(mod)) { shift = true; }\n      else { throw new Error(\"Unrecognized modifier name: \" + mod) }\n    }\n    if (alt) { name = \"Alt-\" + name; }\n    if (ctrl) { name = \"Ctrl-\" + name; }\n    if (cmd) { name = \"Cmd-\" + name; }\n    if (shift) { name = \"Shift-\" + name; }\n    return name\n  }\n\n  // This is a kludge to keep keymaps mostly working as raw objects\n  // (backwards compatibility) while at the same time support features\n  // like normalization and multi-stroke key bindings. It compiles a\n  // new normalized keymap, and then updates the old object to reflect\n  // this.\n  function normalizeKeyMap(keymap) {\n    var copy = {};\n    for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {\n      var value = keymap[keyname];\n      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }\n      if (value == \"...\") { delete keymap[keyname]; continue }\n\n      var keys = map(keyname.split(\" \"), normalizeKeyName);\n      for (var i = 0; i < keys.length; i++) {\n        var val = (void 0), name = (void 0);\n        if (i == keys.length - 1) {\n          name = keys.join(\" \");\n          val = value;\n        } else {\n          name = keys.slice(0, i + 1).join(\" \");\n          val = \"...\";\n        }\n        var prev = copy[name];\n        if (!prev) { copy[name] = val; }\n        else if (prev != val) { throw new Error(\"Inconsistent bindings for \" + name) }\n      }\n      delete keymap[keyname];\n    } }\n    for (var prop in copy) { keymap[prop] = copy[prop]; }\n    return keymap\n  }\n\n  function lookupKey(key, map$$1, handle, context) {\n    map$$1 = getKeyMap(map$$1);\n    var found = map$$1.call ? map$$1.call(key, context) : map$$1[key];\n    if (found === false) { return \"nothing\" }\n    if (found === \"...\") { return \"multi\" }\n    if (found != null && handle(found)) { return \"handled\" }\n\n    if (map$$1.fallthrough) {\n      if (Object.prototype.toString.call(map$$1.fallthrough) != \"[object Array]\")\n        { return lookupKey(key, map$$1.fallthrough, handle, context) }\n      for (var i = 0; i < map$$1.fallthrough.length; i++) {\n        var result = lookupKey(key, map$$1.fallthrough[i], handle, context);\n        if (result) { return result }\n      }\n    }\n  }\n\n  // Modifier key presses don't count as 'real' key presses for the\n  // purpose of keymap fallthrough.\n  function isModifierKey(value) {\n    var name = typeof value == \"string\" ? value : keyNames[value.keyCode];\n    return name == \"Ctrl\" || name == \"Alt\" || name == \"Shift\" || name == \"Mod\"\n  }\n\n  function addModifierNames(name, event, noShift) {\n    var base = name;\n    if (event.altKey && base != \"Alt\") { name = \"Alt-\" + name; }\n    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != \"Ctrl\") { name = \"Ctrl-\" + name; }\n    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != \"Cmd\") { name = \"Cmd-\" + name; }\n    if (!noShift && event.shiftKey && base != \"Shift\") { name = \"Shift-\" + name; }\n    return name\n  }\n\n  // Look up the name of a key as indicated by an event object.\n  function keyName(event, noShift) {\n    if (presto && event.keyCode == 34 && event[\"char\"]) { return false }\n    var name = keyNames[event.keyCode];\n    if (name == null || event.altGraphKey) { return false }\n    // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,\n    // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)\n    if (event.keyCode == 3 && event.code) { name = event.code; }\n    return addModifierNames(name, event, noShift)\n  }\n\n  function getKeyMap(val) {\n    return typeof val == \"string\" ? keyMap[val] : val\n  }\n\n  // Helper for deleting text near the selection(s), used to implement\n  // backspace, delete, and similar functionality.\n  function deleteNearSelection(cm, compute) {\n    var ranges = cm.doc.sel.ranges, kill = [];\n    // Build up a set of ranges to kill first, merging overlapping\n    // ranges.\n    for (var i = 0; i < ranges.length; i++) {\n      var toKill = compute(ranges[i]);\n      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {\n        var replaced = kill.pop();\n        if (cmp(replaced.from, toKill.from) < 0) {\n          toKill.from = replaced.from;\n          break\n        }\n      }\n      kill.push(toKill);\n    }\n    // Next, remove those actual ranges.\n    runInOp(cm, function () {\n      for (var i = kill.length - 1; i >= 0; i--)\n        { replaceRange(cm.doc, \"\", kill[i].from, kill[i].to, \"+delete\"); }\n      ensureCursorVisible(cm);\n    });\n  }\n\n  function moveCharLogically(line, ch, dir) {\n    var target = skipExtendingChars(line.text, ch + dir, dir);\n    return target < 0 || target > line.text.length ? null : target\n  }\n\n  function moveLogically(line, start, dir) {\n    var ch = moveCharLogically(line, start.ch, dir);\n    return ch == null ? null : new Pos(start.line, ch, dir < 0 ? \"after\" : \"before\")\n  }\n\n  function endOfLine(visually, cm, lineObj, lineNo, dir) {\n    if (visually) {\n      var order = getOrder(lineObj, cm.doc.direction);\n      if (order) {\n        var part = dir < 0 ? lst(order) : order[0];\n        var moveInStorageOrder = (dir < 0) == (part.level == 1);\n        var sticky = moveInStorageOrder ? \"after\" : \"before\";\n        var ch;\n        // With a wrapped rtl chunk (possibly spanning multiple bidi parts),\n        // it could be that the last bidi part is not on the last visual line,\n        // since visual lines contain content order-consecutive chunks.\n        // Thus, in rtl, we are looking for the first (content-order) character\n        // in the rtl chunk that is on the last line (that is, the same line\n        // as the last (content-order) character).\n        if (part.level > 0 || cm.doc.direction == \"rtl\") {\n          var prep = prepareMeasureForLine(cm, lineObj);\n          ch = dir < 0 ? lineObj.text.length - 1 : 0;\n          var targetTop = measureCharPrepared(cm, prep, ch).top;\n          ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);\n          if (sticky == \"before\") { ch = moveCharLogically(lineObj, ch, 1); }\n        } else { ch = dir < 0 ? part.to : part.from; }\n        return new Pos(lineNo, ch, sticky)\n      }\n    }\n    return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? \"before\" : \"after\")\n  }\n\n  function moveVisually(cm, line, start, dir) {\n    var bidi = getOrder(line, cm.doc.direction);\n    if (!bidi) { return moveLogically(line, start, dir) }\n    if (start.ch >= line.text.length) {\n      start.ch = line.text.length;\n      start.sticky = \"before\";\n    } else if (start.ch <= 0) {\n      start.ch = 0;\n      start.sticky = \"after\";\n    }\n    var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];\n    if (cm.doc.direction == \"ltr\" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {\n      // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,\n      // nothing interesting happens.\n      return moveLogically(line, start, dir)\n    }\n\n    var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };\n    var prep;\n    var getWrappedLineExtent = function (ch) {\n      if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }\n      prep = prep || prepareMeasureForLine(cm, line);\n      return wrappedLineExtentChar(cm, line, prep, ch)\n    };\n    var wrappedLineExtent = getWrappedLineExtent(start.sticky == \"before\" ? mv(start, -1) : start.ch);\n\n    if (cm.doc.direction == \"rtl\" || part.level == 1) {\n      var moveInStorageOrder = (part.level == 1) == (dir < 0);\n      var ch = mv(start, moveInStorageOrder ? 1 : -1);\n      if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {\n        // Case 2: We move within an rtl part or in an rtl editor on the same visual line\n        var sticky = moveInStorageOrder ? \"before\" : \"after\";\n        return new Pos(start.line, ch, sticky)\n      }\n    }\n\n    // Case 3: Could not move within this bidi part in this visual line, so leave\n    // the current bidi part\n\n    var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {\n      var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder\n        ? new Pos(start.line, mv(ch, 1), \"before\")\n        : new Pos(start.line, ch, \"after\"); };\n\n      for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {\n        var part = bidi[partPos];\n        var moveInStorageOrder = (dir > 0) == (part.level != 1);\n        var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);\n        if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }\n        ch = moveInStorageOrder ? part.from : mv(part.to, -1);\n        if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }\n      }\n    };\n\n    // Case 3a: Look for other bidi parts on the same visual line\n    var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);\n    if (res) { return res }\n\n    // Case 3b: Look for other bidi parts on the next visual line\n    var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);\n    if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {\n      res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));\n      if (res) { return res }\n    }\n\n    // Case 4: Nowhere to move\n    return null\n  }\n\n  // Commands are parameter-less actions that can be performed on an\n  // editor, mostly used for keybindings.\n  var commands = {\n    selectAll: selectAll,\n    singleSelection: function (cm) { return cm.setSelection(cm.getCursor(\"anchor\"), cm.getCursor(\"head\"), sel_dontScroll); },\n    killLine: function (cm) { return deleteNearSelection(cm, function (range) {\n      if (range.empty()) {\n        var len = getLine(cm.doc, range.head.line).text.length;\n        if (range.head.ch == len && range.head.line < cm.lastLine())\n          { return {from: range.head, to: Pos(range.head.line + 1, 0)} }\n        else\n          { return {from: range.head, to: Pos(range.head.line, len)} }\n      } else {\n        return {from: range.from(), to: range.to()}\n      }\n    }); },\n    deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n      from: Pos(range.from().line, 0),\n      to: clipPos(cm.doc, Pos(range.to().line + 1, 0))\n    }); }); },\n    delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n      from: Pos(range.from().line, 0), to: range.from()\n    }); }); },\n    delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {\n      var top = cm.charCoords(range.head, \"div\").top + 5;\n      var leftPos = cm.coordsChar({left: 0, top: top}, \"div\");\n      return {from: leftPos, to: range.from()}\n    }); },\n    delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {\n      var top = cm.charCoords(range.head, \"div\").top + 5;\n      var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\");\n      return {from: range.from(), to: rightPos }\n    }); },\n    undo: function (cm) { return cm.undo(); },\n    redo: function (cm) { return cm.redo(); },\n    undoSelection: function (cm) { return cm.undoSelection(); },\n    redoSelection: function (cm) { return cm.redoSelection(); },\n    goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },\n    goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },\n    goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },\n      {origin: \"+move\", bias: 1}\n    ); },\n    goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },\n      {origin: \"+move\", bias: 1}\n    ); },\n    goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },\n      {origin: \"+move\", bias: -1}\n    ); },\n    goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\")\n    }, sel_move); },\n    goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      return cm.coordsChar({left: 0, top: top}, \"div\")\n    }, sel_move); },\n    goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      var pos = cm.coordsChar({left: 0, top: top}, \"div\");\n      if (pos.ch < cm.getLine(pos.line).search(/\\S/)) { return lineStartSmart(cm, range.head) }\n      return pos\n    }, sel_move); },\n    goLineUp: function (cm) { return cm.moveV(-1, \"line\"); },\n    goLineDown: function (cm) { return cm.moveV(1, \"line\"); },\n    goPageUp: function (cm) { return cm.moveV(-1, \"page\"); },\n    goPageDown: function (cm) { return cm.moveV(1, \"page\"); },\n    goCharLeft: function (cm) { return cm.moveH(-1, \"char\"); },\n    goCharRight: function (cm) { return cm.moveH(1, \"char\"); },\n    goColumnLeft: function (cm) { return cm.moveH(-1, \"column\"); },\n    goColumnRight: function (cm) { return cm.moveH(1, \"column\"); },\n    goWordLeft: function (cm) { return cm.moveH(-1, \"word\"); },\n    goGroupRight: function (cm) { return cm.moveH(1, \"group\"); },\n    goGroupLeft: function (cm) { return cm.moveH(-1, \"group\"); },\n    goWordRight: function (cm) { return cm.moveH(1, \"word\"); },\n    delCharBefore: function (cm) { return cm.deleteH(-1, \"char\"); },\n    delCharAfter: function (cm) { return cm.deleteH(1, \"char\"); },\n    delWordBefore: function (cm) { return cm.deleteH(-1, \"word\"); },\n    delWordAfter: function (cm) { return cm.deleteH(1, \"word\"); },\n    delGroupBefore: function (cm) { return cm.deleteH(-1, \"group\"); },\n    delGroupAfter: function (cm) { return cm.deleteH(1, \"group\"); },\n    indentAuto: function (cm) { return cm.indentSelection(\"smart\"); },\n    indentMore: function (cm) { return cm.indentSelection(\"add\"); },\n    indentLess: function (cm) { return cm.indentSelection(\"subtract\"); },\n    insertTab: function (cm) { return cm.replaceSelection(\"\\t\"); },\n    insertSoftTab: function (cm) {\n      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;\n      for (var i = 0; i < ranges.length; i++) {\n        var pos = ranges[i].from();\n        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);\n        spaces.push(spaceStr(tabSize - col % tabSize));\n      }\n      cm.replaceSelections(spaces);\n    },\n    defaultTab: function (cm) {\n      if (cm.somethingSelected()) { cm.indentSelection(\"add\"); }\n      else { cm.execCommand(\"insertTab\"); }\n    },\n    // Swap the two chars left and right of each selection's head.\n    // Move cursor behind the two swapped characters afterwards.\n    //\n    // Doesn't consider line feeds a character.\n    // Doesn't scan more than one line above to find a character.\n    // Doesn't do anything on an empty line.\n    // Doesn't do anything with non-empty selections.\n    transposeChars: function (cm) { return runInOp(cm, function () {\n      var ranges = cm.listSelections(), newSel = [];\n      for (var i = 0; i < ranges.length; i++) {\n        if (!ranges[i].empty()) { continue }\n        var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;\n        if (line) {\n          if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }\n          if (cur.ch > 0) {\n            cur = new Pos(cur.line, cur.ch + 1);\n            cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),\n                            Pos(cur.line, cur.ch - 2), cur, \"+transpose\");\n          } else if (cur.line > cm.doc.first) {\n            var prev = getLine(cm.doc, cur.line - 1).text;\n            if (prev) {\n              cur = new Pos(cur.line, 1);\n              cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +\n                              prev.charAt(prev.length - 1),\n                              Pos(cur.line - 1, prev.length - 1), cur, \"+transpose\");\n            }\n          }\n        }\n        newSel.push(new Range(cur, cur));\n      }\n      cm.setSelections(newSel);\n    }); },\n    newlineAndIndent: function (cm) { return runInOp(cm, function () {\n      var sels = cm.listSelections();\n      for (var i = sels.length - 1; i >= 0; i--)\n        { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, \"+input\"); }\n      sels = cm.listSelections();\n      for (var i$1 = 0; i$1 < sels.length; i$1++)\n        { cm.indentLine(sels[i$1].from().line, null, true); }\n      ensureCursorVisible(cm);\n    }); },\n    openLine: function (cm) { return cm.replaceSelection(\"\\n\", \"start\"); },\n    toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }\n  };\n\n\n  function lineStart(cm, lineN) {\n    var line = getLine(cm.doc, lineN);\n    var visual = visualLine(line);\n    if (visual != line) { lineN = lineNo(visual); }\n    return endOfLine(true, cm, visual, lineN, 1)\n  }\n  function lineEnd(cm, lineN) {\n    var line = getLine(cm.doc, lineN);\n    var visual = visualLineEnd(line);\n    if (visual != line) { lineN = lineNo(visual); }\n    return endOfLine(true, cm, line, lineN, -1)\n  }\n  function lineStartSmart(cm, pos) {\n    var start = lineStart(cm, pos.line);\n    var line = getLine(cm.doc, start.line);\n    var order = getOrder(line, cm.doc.direction);\n    if (!order || order[0].level == 0) {\n      var firstNonWS = Math.max(0, line.text.search(/\\S/));\n      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;\n      return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)\n    }\n    return start\n  }\n\n  // Run a handler that was bound to a key.\n  function doHandleBinding(cm, bound, dropShift) {\n    if (typeof bound == \"string\") {\n      bound = commands[bound];\n      if (!bound) { return false }\n    }\n    // Ensure previous input has been read, so that the handler sees a\n    // consistent view of the document\n    cm.display.input.ensurePolled();\n    var prevShift = cm.display.shift, done = false;\n    try {\n      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }\n      if (dropShift) { cm.display.shift = false; }\n      done = bound(cm) != Pass;\n    } finally {\n      cm.display.shift = prevShift;\n      cm.state.suppressEdits = false;\n    }\n    return done\n  }\n\n  function lookupKeyForEditor(cm, name, handle) {\n    for (var i = 0; i < cm.state.keyMaps.length; i++) {\n      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);\n      if (result) { return result }\n    }\n    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))\n      || lookupKey(name, cm.options.keyMap, handle, cm)\n  }\n\n  // Note that, despite the name, this function is also used to check\n  // for bound mouse clicks.\n\n  var stopSeq = new Delayed;\n\n  function dispatchKey(cm, name, e, handle) {\n    var seq = cm.state.keySeq;\n    if (seq) {\n      if (isModifierKey(name)) { return \"handled\" }\n      if (/\\'$/.test(name))\n        { cm.state.keySeq = null; }\n      else\n        { stopSeq.set(50, function () {\n          if (cm.state.keySeq == seq) {\n            cm.state.keySeq = null;\n            cm.display.input.reset();\n          }\n        }); }\n      if (dispatchKeyInner(cm, seq + \" \" + name, e, handle)) { return true }\n    }\n    return dispatchKeyInner(cm, name, e, handle)\n  }\n\n  function dispatchKeyInner(cm, name, e, handle) {\n    var result = lookupKeyForEditor(cm, name, handle);\n\n    if (result == \"multi\")\n      { cm.state.keySeq = name; }\n    if (result == \"handled\")\n      { signalLater(cm, \"keyHandled\", cm, name, e); }\n\n    if (result == \"handled\" || result == \"multi\") {\n      e_preventDefault(e);\n      restartBlink(cm);\n    }\n\n    return !!result\n  }\n\n  // Handle a key from the keydown event.\n  function handleKeyBinding(cm, e) {\n    var name = keyName(e, true);\n    if (!name) { return false }\n\n    if (e.shiftKey && !cm.state.keySeq) {\n      // First try to resolve full name (including 'Shift-'). Failing\n      // that, see if there is a cursor-motion command (starting with\n      // 'go') bound to the keyname without 'Shift-'.\n      return dispatchKey(cm, \"Shift-\" + name, e, function (b) { return doHandleBinding(cm, b, true); })\n          || dispatchKey(cm, name, e, function (b) {\n               if (typeof b == \"string\" ? /^go[A-Z]/.test(b) : b.motion)\n                 { return doHandleBinding(cm, b) }\n             })\n    } else {\n      return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })\n    }\n  }\n\n  // Handle a key from the keypress event\n  function handleCharBinding(cm, e, ch) {\n    return dispatchKey(cm, \"'\" + ch + \"'\", e, function (b) { return doHandleBinding(cm, b, true); })\n  }\n\n  var lastStoppedKey = null;\n  function onKeyDown(e) {\n    var cm = this;\n    cm.curOp.focus = activeElt();\n    if (signalDOMEvent(cm, e)) { return }\n    // IE does strange things with escape.\n    if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }\n    var code = e.keyCode;\n    cm.display.shift = code == 16 || e.shiftKey;\n    var handled = handleKeyBinding(cm, e);\n    if (presto) {\n      lastStoppedKey = handled ? code : null;\n      // Opera has no cut event... we try to at least catch the key combo\n      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))\n        { cm.replaceSelection(\"\", null, \"cut\"); }\n    }\n\n    // Turn mouse into crosshair when Alt is held on Mac.\n    if (code == 18 && !/\\bCodeMirror-crosshair\\b/.test(cm.display.lineDiv.className))\n      { showCrossHair(cm); }\n  }\n\n  function showCrossHair(cm) {\n    var lineDiv = cm.display.lineDiv;\n    addClass(lineDiv, \"CodeMirror-crosshair\");\n\n    function up(e) {\n      if (e.keyCode == 18 || !e.altKey) {\n        rmClass(lineDiv, \"CodeMirror-crosshair\");\n        off(document, \"keyup\", up);\n        off(document, \"mouseover\", up);\n      }\n    }\n    on(document, \"keyup\", up);\n    on(document, \"mouseover\", up);\n  }\n\n  function onKeyUp(e) {\n    if (e.keyCode == 16) { this.doc.sel.shift = false; }\n    signalDOMEvent(this, e);\n  }\n\n  function onKeyPress(e) {\n    var cm = this;\n    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }\n    var keyCode = e.keyCode, charCode = e.charCode;\n    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}\n    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }\n    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);\n    // Some browsers fire keypress events for backspace\n    if (ch == \"\\x08\") { return }\n    if (handleCharBinding(cm, e, ch)) { return }\n    cm.display.input.onKeyPress(e);\n  }\n\n  var DOUBLECLICK_DELAY = 400;\n\n  var PastClick = function(time, pos, button) {\n    this.time = time;\n    this.pos = pos;\n    this.button = button;\n  };\n\n  PastClick.prototype.compare = function (time, pos, button) {\n    return this.time + DOUBLECLICK_DELAY > time &&\n      cmp(pos, this.pos) == 0 && button == this.button\n  };\n\n  var lastClick, lastDoubleClick;\n  function clickRepeat(pos, button) {\n    var now = +new Date;\n    if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {\n      lastClick = lastDoubleClick = null;\n      return \"triple\"\n    } else if (lastClick && lastClick.compare(now, pos, button)) {\n      lastDoubleClick = new PastClick(now, pos, button);\n      lastClick = null;\n      return \"double\"\n    } else {\n      lastClick = new PastClick(now, pos, button);\n      lastDoubleClick = null;\n      return \"single\"\n    }\n  }\n\n  // A mouse down can be a single click, double click, triple click,\n  // start of selection drag, start of text drag, new cursor\n  // (ctrl-click), rectangle drag (alt-drag), or xwin\n  // middle-click-paste. Or it might be a click on something we should\n  // not interfere with, such as a scrollbar or widget.\n  function onMouseDown(e) {\n    var cm = this, display = cm.display;\n    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }\n    display.input.ensurePolled();\n    display.shift = e.shiftKey;\n\n    if (eventInWidget(display, e)) {\n      if (!webkit) {\n        // Briefly turn off draggability, to allow widgets to do\n        // normal dragging things.\n        display.scroller.draggable = false;\n        setTimeout(function () { return display.scroller.draggable = true; }, 100);\n      }\n      return\n    }\n    if (clickInGutter(cm, e)) { return }\n    var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : \"single\";\n    window.focus();\n\n    // #3261: make sure, that we're not starting a second selection\n    if (button == 1 && cm.state.selectingText)\n      { cm.state.selectingText(e); }\n\n    if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }\n\n    if (button == 1) {\n      if (pos) { leftButtonDown(cm, pos, repeat, e); }\n      else if (e_target(e) == display.scroller) { e_preventDefault(e); }\n    } else if (button == 2) {\n      if (pos) { extendSelection(cm.doc, pos); }\n      setTimeout(function () { return display.input.focus(); }, 20);\n    } else if (button == 3) {\n      if (captureRightClick) { cm.display.input.onContextMenu(e); }\n      else { delayBlurEvent(cm); }\n    }\n  }\n\n  function handleMappedButton(cm, button, pos, repeat, event) {\n    var name = \"Click\";\n    if (repeat == \"double\") { name = \"Double\" + name; }\n    else if (repeat == \"triple\") { name = \"Triple\" + name; }\n    name = (button == 1 ? \"Left\" : button == 2 ? \"Middle\" : \"Right\") + name;\n\n    return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {\n      if (typeof bound == \"string\") { bound = commands[bound]; }\n      if (!bound) { return false }\n      var done = false;\n      try {\n        if (cm.isReadOnly()) { cm.state.suppressEdits = true; }\n        done = bound(cm, pos) != Pass;\n      } finally {\n        cm.state.suppressEdits = false;\n      }\n      return done\n    })\n  }\n\n  function configureMouse(cm, repeat, event) {\n    var option = cm.getOption(\"configureMouse\");\n    var value = option ? option(cm, repeat, event) : {};\n    if (value.unit == null) {\n      var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;\n      value.unit = rect ? \"rectangle\" : repeat == \"single\" ? \"char\" : repeat == \"double\" ? \"word\" : \"line\";\n    }\n    if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }\n    if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }\n    if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }\n    return value\n  }\n\n  function leftButtonDown(cm, pos, repeat, event) {\n    if (ie) { setTimeout(bind(ensureFocus, cm), 0); }\n    else { cm.curOp.focus = activeElt(); }\n\n    var behavior = configureMouse(cm, repeat, event);\n\n    var sel = cm.doc.sel, contained;\n    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&\n        repeat == \"single\" && (contained = sel.contains(pos)) > -1 &&\n        (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&\n        (cmp(contained.to(), pos) > 0 || pos.xRel < 0))\n      { leftButtonStartDrag(cm, event, pos, behavior); }\n    else\n      { leftButtonSelect(cm, event, pos, behavior); }\n  }\n\n  // Start a text drag. When it ends, see if any dragging actually\n  // happen, and treat as a click if it didn't.\n  function leftButtonStartDrag(cm, event, pos, behavior) {\n    var display = cm.display, moved = false;\n    var dragEnd = operation(cm, function (e) {\n      if (webkit) { display.scroller.draggable = false; }\n      cm.state.draggingText = false;\n      off(display.wrapper.ownerDocument, \"mouseup\", dragEnd);\n      off(display.wrapper.ownerDocument, \"mousemove\", mouseMove);\n      off(display.scroller, \"dragstart\", dragStart);\n      off(display.scroller, \"drop\", dragEnd);\n      if (!moved) {\n        e_preventDefault(e);\n        if (!behavior.addNew)\n          { extendSelection(cm.doc, pos, null, null, behavior.extend); }\n        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)\n        if (webkit || ie && ie_version == 9)\n          { setTimeout(function () {display.wrapper.ownerDocument.body.focus(); display.input.focus();}, 20); }\n        else\n          { display.input.focus(); }\n      }\n    });\n    var mouseMove = function(e2) {\n      moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;\n    };\n    var dragStart = function () { return moved = true; };\n    // Let the drag handler handle this.\n    if (webkit) { display.scroller.draggable = true; }\n    cm.state.draggingText = dragEnd;\n    dragEnd.copy = !behavior.moveOnDrag;\n    // IE's approach to draggable\n    if (display.scroller.dragDrop) { display.scroller.dragDrop(); }\n    on(display.wrapper.ownerDocument, \"mouseup\", dragEnd);\n    on(display.wrapper.ownerDocument, \"mousemove\", mouseMove);\n    on(display.scroller, \"dragstart\", dragStart);\n    on(display.scroller, \"drop\", dragEnd);\n\n    delayBlurEvent(cm);\n    setTimeout(function () { return display.input.focus(); }, 20);\n  }\n\n  function rangeForUnit(cm, pos, unit) {\n    if (unit == \"char\") { return new Range(pos, pos) }\n    if (unit == \"word\") { return cm.findWordAt(pos) }\n    if (unit == \"line\") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }\n    var result = unit(cm, pos);\n    return new Range(result.from, result.to)\n  }\n\n  // Normal selection, as opposed to text dragging.\n  function leftButtonSelect(cm, event, start, behavior) {\n    var display = cm.display, doc = cm.doc;\n    e_preventDefault(event);\n\n    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;\n    if (behavior.addNew && !behavior.extend) {\n      ourIndex = doc.sel.contains(start);\n      if (ourIndex > -1)\n        { ourRange = ranges[ourIndex]; }\n      else\n        { ourRange = new Range(start, start); }\n    } else {\n      ourRange = doc.sel.primary();\n      ourIndex = doc.sel.primIndex;\n    }\n\n    if (behavior.unit == \"rectangle\") {\n      if (!behavior.addNew) { ourRange = new Range(start, start); }\n      start = posFromMouse(cm, event, true, true);\n      ourIndex = -1;\n    } else {\n      var range$$1 = rangeForUnit(cm, start, behavior.unit);\n      if (behavior.extend)\n        { ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend); }\n      else\n        { ourRange = range$$1; }\n    }\n\n    if (!behavior.addNew) {\n      ourIndex = 0;\n      setSelection(doc, new Selection([ourRange], 0), sel_mouse);\n      startSel = doc.sel;\n    } else if (ourIndex == -1) {\n      ourIndex = ranges.length;\n      setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),\n                   {scroll: false, origin: \"*mouse\"});\n    } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == \"char\" && !behavior.extend) {\n      setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),\n                   {scroll: false, origin: \"*mouse\"});\n      startSel = doc.sel;\n    } else {\n      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);\n    }\n\n    var lastPos = start;\n    function extendTo(pos) {\n      if (cmp(lastPos, pos) == 0) { return }\n      lastPos = pos;\n\n      if (behavior.unit == \"rectangle\") {\n        var ranges = [], tabSize = cm.options.tabSize;\n        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);\n        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);\n        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);\n        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));\n             line <= end; line++) {\n          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);\n          if (left == right)\n            { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }\n          else if (text.length > leftPos)\n            { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }\n        }\n        if (!ranges.length) { ranges.push(new Range(start, start)); }\n        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),\n                     {origin: \"*mouse\", scroll: false});\n        cm.scrollIntoView(pos);\n      } else {\n        var oldRange = ourRange;\n        var range$$1 = rangeForUnit(cm, pos, behavior.unit);\n        var anchor = oldRange.anchor, head;\n        if (cmp(range$$1.anchor, anchor) > 0) {\n          head = range$$1.head;\n          anchor = minPos(oldRange.from(), range$$1.anchor);\n        } else {\n          head = range$$1.anchor;\n          anchor = maxPos(oldRange.to(), range$$1.head);\n        }\n        var ranges$1 = startSel.ranges.slice(0);\n        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));\n        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);\n      }\n    }\n\n    var editorSize = display.wrapper.getBoundingClientRect();\n    // Used to ensure timeout re-tries don't fire when another extend\n    // happened in the meantime (clearTimeout isn't reliable -- at\n    // least on Chrome, the timeouts still happen even when cleared,\n    // if the clear happens after their scheduled firing time).\n    var counter = 0;\n\n    function extend(e) {\n      var curCount = ++counter;\n      var cur = posFromMouse(cm, e, true, behavior.unit == \"rectangle\");\n      if (!cur) { return }\n      if (cmp(cur, lastPos) != 0) {\n        cm.curOp.focus = activeElt();\n        extendTo(cur);\n        var visible = visibleLines(display, doc);\n        if (cur.line >= visible.to || cur.line < visible.from)\n          { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }\n      } else {\n        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;\n        if (outside) { setTimeout(operation(cm, function () {\n          if (counter != curCount) { return }\n          display.scroller.scrollTop += outside;\n          extend(e);\n        }), 50); }\n      }\n    }\n\n    function done(e) {\n      cm.state.selectingText = false;\n      counter = Infinity;\n      // If e is null or undefined we interpret this as someone trying\n      // to explicitly cancel the selection rather than the user\n      // letting go of the mouse button.\n      if (e) {\n        e_preventDefault(e);\n        display.input.focus();\n      }\n      off(display.wrapper.ownerDocument, \"mousemove\", move);\n      off(display.wrapper.ownerDocument, \"mouseup\", up);\n      doc.history.lastSelOrigin = null;\n    }\n\n    var move = operation(cm, function (e) {\n      if (e.buttons === 0 || !e_button(e)) { done(e); }\n      else { extend(e); }\n    });\n    var up = operation(cm, done);\n    cm.state.selectingText = up;\n    on(display.wrapper.ownerDocument, \"mousemove\", move);\n    on(display.wrapper.ownerDocument, \"mouseup\", up);\n  }\n\n  // Used when mouse-selecting to adjust the anchor to the proper side\n  // of a bidi jump depending on the visual position of the head.\n  function bidiSimplify(cm, range$$1) {\n    var anchor = range$$1.anchor;\n    var head = range$$1.head;\n    var anchorLine = getLine(cm.doc, anchor.line);\n    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range$$1 }\n    var order = getOrder(anchorLine);\n    if (!order) { return range$$1 }\n    var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];\n    if (part.from != anchor.ch && part.to != anchor.ch) { return range$$1 }\n    var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);\n    if (boundary == 0 || boundary == order.length) { return range$$1 }\n\n    // Compute the relative visual position of the head compared to the\n    // anchor (<0 is to the left, >0 to the right)\n    var leftSide;\n    if (head.line != anchor.line) {\n      leftSide = (head.line - anchor.line) * (cm.doc.direction == \"ltr\" ? 1 : -1) > 0;\n    } else {\n      var headIndex = getBidiPartAt(order, head.ch, head.sticky);\n      var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);\n      if (headIndex == boundary - 1 || headIndex == boundary)\n        { leftSide = dir < 0; }\n      else\n        { leftSide = dir > 0; }\n    }\n\n    var usePart = order[boundary + (leftSide ? -1 : 0)];\n    var from = leftSide == (usePart.level == 1);\n    var ch = from ? usePart.from : usePart.to, sticky = from ? \"after\" : \"before\";\n    return anchor.ch == ch && anchor.sticky == sticky ? range$$1 : new Range(new Pos(anchor.line, ch, sticky), head)\n  }\n\n\n  // Determines whether an event happened in the gutter, and fires the\n  // handlers for the corresponding event.\n  function gutterEvent(cm, e, type, prevent) {\n    var mX, mY;\n    if (e.touches) {\n      mX = e.touches[0].clientX;\n      mY = e.touches[0].clientY;\n    } else {\n      try { mX = e.clientX; mY = e.clientY; }\n      catch(e) { return false }\n    }\n    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }\n    if (prevent) { e_preventDefault(e); }\n\n    var display = cm.display;\n    var lineBox = display.lineDiv.getBoundingClientRect();\n\n    if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }\n    mY -= lineBox.top - display.viewOffset;\n\n    for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {\n      var g = display.gutters.childNodes[i];\n      if (g && g.getBoundingClientRect().right >= mX) {\n        var line = lineAtHeight(cm.doc, mY);\n        var gutter = cm.display.gutterSpecs[i];\n        signal(cm, type, cm, line, gutter.className, e);\n        return e_defaultPrevented(e)\n      }\n    }\n  }\n\n  function clickInGutter(cm, e) {\n    return gutterEvent(cm, e, \"gutterClick\", true)\n  }\n\n  // CONTEXT MENU HANDLING\n\n  // To make the context menu work, we need to briefly unhide the\n  // textarea (making it as unobtrusive as possible) to let the\n  // right-click take effect on it.\n  function onContextMenu(cm, e) {\n    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }\n    if (signalDOMEvent(cm, e, \"contextmenu\")) { return }\n    if (!captureRightClick) { cm.display.input.onContextMenu(e); }\n  }\n\n  function contextMenuInGutter(cm, e) {\n    if (!hasHandler(cm, \"gutterContextMenu\")) { return false }\n    return gutterEvent(cm, e, \"gutterContextMenu\", false)\n  }\n\n  function themeChanged(cm) {\n    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\\s*cm-s-\\S+/g, \"\") +\n      cm.options.theme.replace(/(^|\\s)\\s*/g, \" cm-s-\");\n    clearCaches(cm);\n  }\n\n  var Init = {toString: function(){return \"CodeMirror.Init\"}};\n\n  var defaults = {};\n  var optionHandlers = {};\n\n  function defineOptions(CodeMirror) {\n    var optionHandlers = CodeMirror.optionHandlers;\n\n    function option(name, deflt, handle, notOnInit) {\n      CodeMirror.defaults[name] = deflt;\n      if (handle) { optionHandlers[name] =\n        notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }\n    }\n\n    CodeMirror.defineOption = option;\n\n    // Passed to option handlers when there is no old value.\n    CodeMirror.Init = Init;\n\n    // These two are, on init, called from the constructor because they\n    // have to be initialized before the editor can start at all.\n    option(\"value\", \"\", function (cm, val) { return cm.setValue(val); }, true);\n    option(\"mode\", null, function (cm, val) {\n      cm.doc.modeOption = val;\n      loadMode(cm);\n    }, true);\n\n    option(\"indentUnit\", 2, loadMode, true);\n    option(\"indentWithTabs\", false);\n    option(\"smartIndent\", true);\n    option(\"tabSize\", 4, function (cm) {\n      resetModeState(cm);\n      clearCaches(cm);\n      regChange(cm);\n    }, true);\n\n    option(\"lineSeparator\", null, function (cm, val) {\n      cm.doc.lineSep = val;\n      if (!val) { return }\n      var newBreaks = [], lineNo = cm.doc.first;\n      cm.doc.iter(function (line) {\n        for (var pos = 0;;) {\n          var found = line.text.indexOf(val, pos);\n          if (found == -1) { break }\n          pos = found + val.length;\n          newBreaks.push(Pos(lineNo, found));\n        }\n        lineNo++;\n      });\n      for (var i = newBreaks.length - 1; i >= 0; i--)\n        { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }\n    });\n    option(\"specialChars\", /[\\u0000-\\u001f\\u007f-\\u009f\\u00ad\\u061c\\u200b-\\u200f\\u2028\\u2029\\ufeff\\ufff9-\\ufffc]/g, function (cm, val, old) {\n      cm.state.specialChars = new RegExp(val.source + (val.test(\"\\t\") ? \"\" : \"|\\t\"), \"g\");\n      if (old != Init) { cm.refresh(); }\n    });\n    option(\"specialCharPlaceholder\", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);\n    option(\"electricChars\", true);\n    option(\"inputStyle\", mobile ? \"contenteditable\" : \"textarea\", function () {\n      throw new Error(\"inputStyle can not (yet) be changed in a running editor\") // FIXME\n    }, true);\n    option(\"spellcheck\", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);\n    option(\"autocorrect\", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);\n    option(\"autocapitalize\", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);\n    option(\"rtlMoveVisually\", !windows);\n    option(\"wholeLineUpdateBefore\", true);\n\n    option(\"theme\", \"default\", function (cm) {\n      themeChanged(cm);\n      updateGutters(cm);\n    }, true);\n    option(\"keyMap\", \"default\", function (cm, val, old) {\n      var next = getKeyMap(val);\n      var prev = old != Init && getKeyMap(old);\n      if (prev && prev.detach) { prev.detach(cm, next); }\n      if (next.attach) { next.attach(cm, prev || null); }\n    });\n    option(\"extraKeys\", null);\n    option(\"configureMouse\", null);\n\n    option(\"lineWrapping\", false, wrappingChanged, true);\n    option(\"gutters\", [], function (cm, val) {\n      cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);\n      updateGutters(cm);\n    }, true);\n    option(\"fixedGutter\", true, function (cm, val) {\n      cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + \"px\" : \"0\";\n      cm.refresh();\n    }, true);\n    option(\"coverGutterNextToScrollbar\", false, function (cm) { return updateScrollbars(cm); }, true);\n    option(\"scrollbarStyle\", \"native\", function (cm) {\n      initScrollbars(cm);\n      updateScrollbars(cm);\n      cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);\n      cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);\n    }, true);\n    option(\"lineNumbers\", false, function (cm, val) {\n      cm.display.gutterSpecs = getGutters(cm.options.gutters, val);\n      updateGutters(cm);\n    }, true);\n    option(\"firstLineNumber\", 1, updateGutters, true);\n    option(\"lineNumberFormatter\", function (integer) { return integer; }, updateGutters, true);\n    option(\"showCursorWhenSelecting\", false, updateSelection, true);\n\n    option(\"resetSelectionOnContextMenu\", true);\n    option(\"lineWiseCopyCut\", true);\n    option(\"pasteLinesPerSelection\", true);\n    option(\"selectionsMayTouch\", false);\n\n    option(\"readOnly\", false, function (cm, val) {\n      if (val == \"nocursor\") {\n        onBlur(cm);\n        cm.display.input.blur();\n      }\n      cm.display.input.readOnlyChanged(val);\n    });\n    option(\"disableInput\", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);\n    option(\"dragDrop\", true, dragDropChanged);\n    option(\"allowDropFileTypes\", null);\n\n    option(\"cursorBlinkRate\", 530);\n    option(\"cursorScrollMargin\", 0);\n    option(\"cursorHeight\", 1, updateSelection, true);\n    option(\"singleCursorHeightPerLine\", true, updateSelection, true);\n    option(\"workTime\", 100);\n    option(\"workDelay\", 100);\n    option(\"flattenSpans\", true, resetModeState, true);\n    option(\"addModeClass\", false, resetModeState, true);\n    option(\"pollInterval\", 100);\n    option(\"undoDepth\", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });\n    option(\"historyEventDelay\", 1250);\n    option(\"viewportMargin\", 10, function (cm) { return cm.refresh(); }, true);\n    option(\"maxHighlightLength\", 10000, resetModeState, true);\n    option(\"moveInputWithCursor\", true, function (cm, val) {\n      if (!val) { cm.display.input.resetPosition(); }\n    });\n\n    option(\"tabindex\", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || \"\"; });\n    option(\"autofocus\", null);\n    option(\"direction\", \"ltr\", function (cm, val) { return cm.doc.setDirection(val); }, true);\n    option(\"phrases\", null);\n  }\n\n  function dragDropChanged(cm, value, old) {\n    var wasOn = old && old != Init;\n    if (!value != !wasOn) {\n      var funcs = cm.display.dragFunctions;\n      var toggle = value ? on : off;\n      toggle(cm.display.scroller, \"dragstart\", funcs.start);\n      toggle(cm.display.scroller, \"dragenter\", funcs.enter);\n      toggle(cm.display.scroller, \"dragover\", funcs.over);\n      toggle(cm.display.scroller, \"dragleave\", funcs.leave);\n      toggle(cm.display.scroller, \"drop\", funcs.drop);\n    }\n  }\n\n  function wrappingChanged(cm) {\n    if (cm.options.lineWrapping) {\n      addClass(cm.display.wrapper, \"CodeMirror-wrap\");\n      cm.display.sizer.style.minWidth = \"\";\n      cm.display.sizerWidth = null;\n    } else {\n      rmClass(cm.display.wrapper, \"CodeMirror-wrap\");\n      findMaxLine(cm);\n    }\n    estimateLineHeights(cm);\n    regChange(cm);\n    clearCaches(cm);\n    setTimeout(function () { return updateScrollbars(cm); }, 100);\n  }\n\n  // A CodeMirror instance represents an editor. This is the object\n  // that user code is usually dealing with.\n\n  function CodeMirror(place, options) {\n    var this$1 = this;\n\n    if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }\n\n    this.options = options = options ? copyObj(options) : {};\n    // Determine effective options based on given values and defaults.\n    copyObj(defaults, options, false);\n\n    var doc = options.value;\n    if (typeof doc == \"string\") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }\n    else if (options.mode) { doc.modeOption = options.mode; }\n    this.doc = doc;\n\n    var input = new CodeMirror.inputStyles[options.inputStyle](this);\n    var display = this.display = new Display(place, doc, input, options);\n    display.wrapper.CodeMirror = this;\n    themeChanged(this);\n    if (options.lineWrapping)\n      { this.display.wrapper.className += \" CodeMirror-wrap\"; }\n    initScrollbars(this);\n\n    this.state = {\n      keyMaps: [],  // stores maps added by addKeyMap\n      overlays: [], // highlighting overlays, as added by addOverlay\n      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info\n      overwrite: false,\n      delayingBlurEvent: false,\n      focused: false,\n      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode\n      pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll\n      selectingText: false,\n      draggingText: false,\n      highlight: new Delayed(), // stores highlight worker timeout\n      keySeq: null,  // Unfinished key sequence\n      specialChars: null\n    };\n\n    if (options.autofocus && !mobile) { display.input.focus(); }\n\n    // Override magic textarea content restore that IE sometimes does\n    // on our hidden textarea on reload\n    if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }\n\n    registerEventHandlers(this);\n    ensureGlobalHandlers();\n\n    startOperation(this);\n    this.curOp.forceUpdate = true;\n    attachDoc(this, doc);\n\n    if ((options.autofocus && !mobile) || this.hasFocus())\n      { setTimeout(bind(onFocus, this), 20); }\n    else\n      { onBlur(this); }\n\n    for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))\n      { optionHandlers[opt](this$1, options[opt], Init); } }\n    maybeUpdateLineNumberWidth(this);\n    if (options.finishInit) { options.finishInit(this); }\n    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1); }\n    endOperation(this);\n    // Suppress optimizelegibility in Webkit, since it breaks text\n    // measuring on line wrapping boundaries.\n    if (webkit && options.lineWrapping &&\n        getComputedStyle(display.lineDiv).textRendering == \"optimizelegibility\")\n      { display.lineDiv.style.textRendering = \"auto\"; }\n  }\n\n  // The default configuration options.\n  CodeMirror.defaults = defaults;\n  // Functions to run when options are changed.\n  CodeMirror.optionHandlers = optionHandlers;\n\n  // Attach the necessary event handlers when initializing the editor\n  function registerEventHandlers(cm) {\n    var d = cm.display;\n    on(d.scroller, \"mousedown\", operation(cm, onMouseDown));\n    // Older IE's will not fire a second mousedown for a double click\n    if (ie && ie_version < 11)\n      { on(d.scroller, \"dblclick\", operation(cm, function (e) {\n        if (signalDOMEvent(cm, e)) { return }\n        var pos = posFromMouse(cm, e);\n        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }\n        e_preventDefault(e);\n        var word = cm.findWordAt(pos);\n        extendSelection(cm.doc, word.anchor, word.head);\n      })); }\n    else\n      { on(d.scroller, \"dblclick\", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }\n    // Some browsers fire contextmenu *after* opening the menu, at\n    // which point we can't mess with it anymore. Context menu is\n    // handled in onMouseDown for these browsers.\n    on(d.scroller, \"contextmenu\", function (e) { return onContextMenu(cm, e); });\n\n    // Used to suppress mouse event handling when a touch happens\n    var touchFinished, prevTouch = {end: 0};\n    function finishTouch() {\n      if (d.activeTouch) {\n        touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);\n        prevTouch = d.activeTouch;\n        prevTouch.end = +new Date;\n      }\n    }\n    function isMouseLikeTouchEvent(e) {\n      if (e.touches.length != 1) { return false }\n      var touch = e.touches[0];\n      return touch.radiusX <= 1 && touch.radiusY <= 1\n    }\n    function farAway(touch, other) {\n      if (other.left == null) { return true }\n      var dx = other.left - touch.left, dy = other.top - touch.top;\n      return dx * dx + dy * dy > 20 * 20\n    }\n    on(d.scroller, \"touchstart\", function (e) {\n      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {\n        d.input.ensurePolled();\n        clearTimeout(touchFinished);\n        var now = +new Date;\n        d.activeTouch = {start: now, moved: false,\n                         prev: now - prevTouch.end <= 300 ? prevTouch : null};\n        if (e.touches.length == 1) {\n          d.activeTouch.left = e.touches[0].pageX;\n          d.activeTouch.top = e.touches[0].pageY;\n        }\n      }\n    });\n    on(d.scroller, \"touchmove\", function () {\n      if (d.activeTouch) { d.activeTouch.moved = true; }\n    });\n    on(d.scroller, \"touchend\", function (e) {\n      var touch = d.activeTouch;\n      if (touch && !eventInWidget(d, e) && touch.left != null &&\n          !touch.moved && new Date - touch.start < 300) {\n        var pos = cm.coordsChar(d.activeTouch, \"page\"), range;\n        if (!touch.prev || farAway(touch, touch.prev)) // Single tap\n          { range = new Range(pos, pos); }\n        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap\n          { range = cm.findWordAt(pos); }\n        else // Triple tap\n          { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }\n        cm.setSelection(range.anchor, range.head);\n        cm.focus();\n        e_preventDefault(e);\n      }\n      finishTouch();\n    });\n    on(d.scroller, \"touchcancel\", finishTouch);\n\n    // Sync scrolling between fake scrollbars and real scrollable\n    // area, ensure viewport is updated when scrolling.\n    on(d.scroller, \"scroll\", function () {\n      if (d.scroller.clientHeight) {\n        updateScrollTop(cm, d.scroller.scrollTop);\n        setScrollLeft(cm, d.scroller.scrollLeft, true);\n        signal(cm, \"scroll\", cm);\n      }\n    });\n\n    // Listen to wheel events in order to try and update the viewport on time.\n    on(d.scroller, \"mousewheel\", function (e) { return onScrollWheel(cm, e); });\n    on(d.scroller, \"DOMMouseScroll\", function (e) { return onScrollWheel(cm, e); });\n\n    // Prevent wrapper from ever scrolling\n    on(d.wrapper, \"scroll\", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });\n\n    d.dragFunctions = {\n      enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},\n      over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},\n      start: function (e) { return onDragStart(cm, e); },\n      drop: operation(cm, onDrop),\n      leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}\n    };\n\n    var inp = d.input.getField();\n    on(inp, \"keyup\", function (e) { return onKeyUp.call(cm, e); });\n    on(inp, \"keydown\", operation(cm, onKeyDown));\n    on(inp, \"keypress\", operation(cm, onKeyPress));\n    on(inp, \"focus\", function (e) { return onFocus(cm, e); });\n    on(inp, \"blur\", function (e) { return onBlur(cm, e); });\n  }\n\n  var initHooks = [];\n  CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };\n\n  // Indent the given line. The how parameter can be \"smart\",\n  // \"add\"/null, \"subtract\", or \"prev\". When aggressive is false\n  // (typically set to true for forced single-line indents), empty\n  // lines are not indented, and places where the mode returns Pass\n  // are left alone.\n  function indentLine(cm, n, how, aggressive) {\n    var doc = cm.doc, state;\n    if (how == null) { how = \"add\"; }\n    if (how == \"smart\") {\n      // Fall back to \"prev\" when the mode doesn't have an indentation\n      // method.\n      if (!doc.mode.indent) { how = \"prev\"; }\n      else { state = getContextBefore(cm, n).state; }\n    }\n\n    var tabSize = cm.options.tabSize;\n    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);\n    if (line.stateAfter) { line.stateAfter = null; }\n    var curSpaceString = line.text.match(/^\\s*/)[0], indentation;\n    if (!aggressive && !/\\S/.test(line.text)) {\n      indentation = 0;\n      how = \"not\";\n    } else if (how == \"smart\") {\n      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);\n      if (indentation == Pass || indentation > 150) {\n        if (!aggressive) { return }\n        how = \"prev\";\n      }\n    }\n    if (how == \"prev\") {\n      if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }\n      else { indentation = 0; }\n    } else if (how == \"add\") {\n      indentation = curSpace + cm.options.indentUnit;\n    } else if (how == \"subtract\") {\n      indentation = curSpace - cm.options.indentUnit;\n    } else if (typeof how == \"number\") {\n      indentation = curSpace + how;\n    }\n    indentation = Math.max(0, indentation);\n\n    var indentString = \"\", pos = 0;\n    if (cm.options.indentWithTabs)\n      { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += \"\\t\";} }\n    if (pos < indentation) { indentString += spaceStr(indentation - pos); }\n\n    if (indentString != curSpaceString) {\n      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), \"+input\");\n      line.stateAfter = null;\n      return true\n    } else {\n      // Ensure that, if the cursor was in the whitespace at the start\n      // of the line, it is moved to the end of that space.\n      for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {\n        var range = doc.sel.ranges[i$1];\n        if (range.head.line == n && range.head.ch < curSpaceString.length) {\n          var pos$1 = Pos(n, curSpaceString.length);\n          replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));\n          break\n        }\n      }\n    }\n  }\n\n  // This will be set to a {lineWise: bool, text: [string]} object, so\n  // that, when pasting, we know what kind of selections the copied\n  // text was made out of.\n  var lastCopied = null;\n\n  function setLastCopied(newLastCopied) {\n    lastCopied = newLastCopied;\n  }\n\n  function applyTextInput(cm, inserted, deleted, sel, origin) {\n    var doc = cm.doc;\n    cm.display.shift = false;\n    if (!sel) { sel = doc.sel; }\n\n    var recent = +new Date - 200;\n    var paste = origin == \"paste\" || cm.state.pasteIncoming > recent;\n    var textLines = splitLinesAuto(inserted), multiPaste = null;\n    // When pasting N lines into N selections, insert one line per selection\n    if (paste && sel.ranges.length > 1) {\n      if (lastCopied && lastCopied.text.join(\"\\n\") == inserted) {\n        if (sel.ranges.length % lastCopied.text.length == 0) {\n          multiPaste = [];\n          for (var i = 0; i < lastCopied.text.length; i++)\n            { multiPaste.push(doc.splitLines(lastCopied.text[i])); }\n        }\n      } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {\n        multiPaste = map(textLines, function (l) { return [l]; });\n      }\n    }\n\n    var updateInput = cm.curOp.updateInput;\n    // Normal behavior is to insert the new text into every selection\n    for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {\n      var range$$1 = sel.ranges[i$1];\n      var from = range$$1.from(), to = range$$1.to();\n      if (range$$1.empty()) {\n        if (deleted && deleted > 0) // Handle deletion\n          { from = Pos(from.line, from.ch - deleted); }\n        else if (cm.state.overwrite && !paste) // Handle overwrite\n          { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }\n        else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join(\"\\n\") == inserted)\n          { from = to = Pos(from.line, 0); }\n      }\n      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,\n                         origin: origin || (paste ? \"paste\" : cm.state.cutIncoming > recent ? \"cut\" : \"+input\")};\n      makeChange(cm.doc, changeEvent);\n      signalLater(cm, \"inputRead\", cm, changeEvent);\n    }\n    if (inserted && !paste)\n      { triggerElectric(cm, inserted); }\n\n    ensureCursorVisible(cm);\n    if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }\n    cm.curOp.typing = true;\n    cm.state.pasteIncoming = cm.state.cutIncoming = -1;\n  }\n\n  function handlePaste(e, cm) {\n    var pasted = e.clipboardData && e.clipboardData.getData(\"Text\");\n    if (pasted) {\n      e.preventDefault();\n      if (!cm.isReadOnly() && !cm.options.disableInput)\n        { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, \"paste\"); }); }\n      return true\n    }\n  }\n\n  function triggerElectric(cm, inserted) {\n    // When an 'electric' character is inserted, immediately trigger a reindent\n    if (!cm.options.electricChars || !cm.options.smartIndent) { return }\n    var sel = cm.doc.sel;\n\n    for (var i = sel.ranges.length - 1; i >= 0; i--) {\n      var range$$1 = sel.ranges[i];\n      if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue }\n      var mode = cm.getModeAt(range$$1.head);\n      var indented = false;\n      if (mode.electricChars) {\n        for (var j = 0; j < mode.electricChars.length; j++)\n          { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {\n            indented = indentLine(cm, range$$1.head.line, \"smart\");\n            break\n          } }\n      } else if (mode.electricInput) {\n        if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch)))\n          { indented = indentLine(cm, range$$1.head.line, \"smart\"); }\n      }\n      if (indented) { signalLater(cm, \"electricInput\", cm, range$$1.head.line); }\n    }\n  }\n\n  function copyableRanges(cm) {\n    var text = [], ranges = [];\n    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {\n      var line = cm.doc.sel.ranges[i].head.line;\n      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};\n      ranges.push(lineRange);\n      text.push(cm.getRange(lineRange.anchor, lineRange.head));\n    }\n    return {text: text, ranges: ranges}\n  }\n\n  function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {\n    field.setAttribute(\"autocorrect\", autocorrect ? \"\" : \"off\");\n    field.setAttribute(\"autocapitalize\", autocapitalize ? \"\" : \"off\");\n    field.setAttribute(\"spellcheck\", !!spellcheck);\n  }\n\n  function hiddenTextarea() {\n    var te = elt(\"textarea\", null, null, \"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none\");\n    var div = elt(\"div\", [te], null, \"overflow: hidden; position: relative; width: 3px; height: 0px;\");\n    // The textarea is kept positioned near the cursor to prevent the\n    // fact that it'll be scrolled into view on input from scrolling\n    // our fake cursor out of view. On webkit, when wrap=off, paste is\n    // very slow. So make the area wide instead.\n    if (webkit) { te.style.width = \"1000px\"; }\n    else { te.setAttribute(\"wrap\", \"off\"); }\n    // If border: 0; -- iOS fails to open keyboard (issue #1287)\n    if (ios) { te.style.border = \"1px solid black\"; }\n    disableBrowserMagic(te);\n    return div\n  }\n\n  // The publicly visible API. Note that methodOp(f) means\n  // 'wrap f in an operation, performed on its `this` parameter'.\n\n  // This is not the complete set of editor methods. Most of the\n  // methods defined on the Doc type are also injected into\n  // CodeMirror.prototype, for backwards compatibility and\n  // convenience.\n\n  function addEditorMethods(CodeMirror) {\n    var optionHandlers = CodeMirror.optionHandlers;\n\n    var helpers = CodeMirror.helpers = {};\n\n    CodeMirror.prototype = {\n      constructor: CodeMirror,\n      focus: function(){window.focus(); this.display.input.focus();},\n\n      setOption: function(option, value) {\n        var options = this.options, old = options[option];\n        if (options[option] == value && option != \"mode\") { return }\n        options[option] = value;\n        if (optionHandlers.hasOwnProperty(option))\n          { operation(this, optionHandlers[option])(this, value, old); }\n        signal(this, \"optionChange\", this, option);\n      },\n\n      getOption: function(option) {return this.options[option]},\n      getDoc: function() {return this.doc},\n\n      addKeyMap: function(map$$1, bottom) {\n        this.state.keyMaps[bottom ? \"push\" : \"unshift\"](getKeyMap(map$$1));\n      },\n      removeKeyMap: function(map$$1) {\n        var maps = this.state.keyMaps;\n        for (var i = 0; i < maps.length; ++i)\n          { if (maps[i] == map$$1 || maps[i].name == map$$1) {\n            maps.splice(i, 1);\n            return true\n          } }\n      },\n\n      addOverlay: methodOp(function(spec, options) {\n        var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);\n        if (mode.startState) { throw new Error(\"Overlays may not be stateful.\") }\n        insertSorted(this.state.overlays,\n                     {mode: mode, modeSpec: spec, opaque: options && options.opaque,\n                      priority: (options && options.priority) || 0},\n                     function (overlay) { return overlay.priority; });\n        this.state.modeGen++;\n        regChange(this);\n      }),\n      removeOverlay: methodOp(function(spec) {\n        var this$1 = this;\n\n        var overlays = this.state.overlays;\n        for (var i = 0; i < overlays.length; ++i) {\n          var cur = overlays[i].modeSpec;\n          if (cur == spec || typeof spec == \"string\" && cur.name == spec) {\n            overlays.splice(i, 1);\n            this$1.state.modeGen++;\n            regChange(this$1);\n            return\n          }\n        }\n      }),\n\n      indentLine: methodOp(function(n, dir, aggressive) {\n        if (typeof dir != \"string\" && typeof dir != \"number\") {\n          if (dir == null) { dir = this.options.smartIndent ? \"smart\" : \"prev\"; }\n          else { dir = dir ? \"add\" : \"subtract\"; }\n        }\n        if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }\n      }),\n      indentSelection: methodOp(function(how) {\n        var this$1 = this;\n\n        var ranges = this.doc.sel.ranges, end = -1;\n        for (var i = 0; i < ranges.length; i++) {\n          var range$$1 = ranges[i];\n          if (!range$$1.empty()) {\n            var from = range$$1.from(), to = range$$1.to();\n            var start = Math.max(end, from.line);\n            end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;\n            for (var j = start; j < end; ++j)\n              { indentLine(this$1, j, how); }\n            var newRanges = this$1.doc.sel.ranges;\n            if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)\n              { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }\n          } else if (range$$1.head.line > end) {\n            indentLine(this$1, range$$1.head.line, how, true);\n            end = range$$1.head.line;\n            if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1); }\n          }\n        }\n      }),\n\n      // Fetch the parser token for a given character. Useful for hacks\n      // that want to inspect the mode state (say, for completion).\n      getTokenAt: function(pos, precise) {\n        return takeToken(this, pos, precise)\n      },\n\n      getLineTokens: function(line, precise) {\n        return takeToken(this, Pos(line), precise, true)\n      },\n\n      getTokenTypeAt: function(pos) {\n        pos = clipPos(this.doc, pos);\n        var styles = getLineStyles(this, getLine(this.doc, pos.line));\n        var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;\n        var type;\n        if (ch == 0) { type = styles[2]; }\n        else { for (;;) {\n          var mid = (before + after) >> 1;\n          if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }\n          else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }\n          else { type = styles[mid * 2 + 2]; break }\n        } }\n        var cut = type ? type.indexOf(\"overlay \") : -1;\n        return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)\n      },\n\n      getModeAt: function(pos) {\n        var mode = this.doc.mode;\n        if (!mode.innerMode) { return mode }\n        return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode\n      },\n\n      getHelper: function(pos, type) {\n        return this.getHelpers(pos, type)[0]\n      },\n\n      getHelpers: function(pos, type) {\n        var this$1 = this;\n\n        var found = [];\n        if (!helpers.hasOwnProperty(type)) { return found }\n        var help = helpers[type], mode = this.getModeAt(pos);\n        if (typeof mode[type] == \"string\") {\n          if (help[mode[type]]) { found.push(help[mode[type]]); }\n        } else if (mode[type]) {\n          for (var i = 0; i < mode[type].length; i++) {\n            var val = help[mode[type][i]];\n            if (val) { found.push(val); }\n          }\n        } else if (mode.helperType && help[mode.helperType]) {\n          found.push(help[mode.helperType]);\n        } else if (help[mode.name]) {\n          found.push(help[mode.name]);\n        }\n        for (var i$1 = 0; i$1 < help._global.length; i$1++) {\n          var cur = help._global[i$1];\n          if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)\n            { found.push(cur.val); }\n        }\n        return found\n      },\n\n      getStateAfter: function(line, precise) {\n        var doc = this.doc;\n        line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);\n        return getContextBefore(this, line + 1, precise).state\n      },\n\n      cursorCoords: function(start, mode) {\n        var pos, range$$1 = this.doc.sel.primary();\n        if (start == null) { pos = range$$1.head; }\n        else if (typeof start == \"object\") { pos = clipPos(this.doc, start); }\n        else { pos = start ? range$$1.from() : range$$1.to(); }\n        return cursorCoords(this, pos, mode || \"page\")\n      },\n\n      charCoords: function(pos, mode) {\n        return charCoords(this, clipPos(this.doc, pos), mode || \"page\")\n      },\n\n      coordsChar: function(coords, mode) {\n        coords = fromCoordSystem(this, coords, mode || \"page\");\n        return coordsChar(this, coords.left, coords.top)\n      },\n\n      lineAtHeight: function(height, mode) {\n        height = fromCoordSystem(this, {top: height, left: 0}, mode || \"page\").top;\n        return lineAtHeight(this.doc, height + this.display.viewOffset)\n      },\n      heightAtLine: function(line, mode, includeWidgets) {\n        var end = false, lineObj;\n        if (typeof line == \"number\") {\n          var last = this.doc.first + this.doc.size - 1;\n          if (line < this.doc.first) { line = this.doc.first; }\n          else if (line > last) { line = last; end = true; }\n          lineObj = getLine(this.doc, line);\n        } else {\n          lineObj = line;\n        }\n        return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || \"page\", includeWidgets || end).top +\n          (end ? this.doc.height - heightAtLine(lineObj) : 0)\n      },\n\n      defaultTextHeight: function() { return textHeight(this.display) },\n      defaultCharWidth: function() { return charWidth(this.display) },\n\n      getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},\n\n      addWidget: function(pos, node, scroll, vert, horiz) {\n        var display = this.display;\n        pos = cursorCoords(this, clipPos(this.doc, pos));\n        var top = pos.bottom, left = pos.left;\n        node.style.position = \"absolute\";\n        node.setAttribute(\"cm-ignore-events\", \"true\");\n        this.display.input.setUneditable(node);\n        display.sizer.appendChild(node);\n        if (vert == \"over\") {\n          top = pos.top;\n        } else if (vert == \"above\" || vert == \"near\") {\n          var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),\n          hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);\n          // Default to positioning above (if specified and possible); otherwise default to positioning below\n          if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)\n            { top = pos.top - node.offsetHeight; }\n          else if (pos.bottom + node.offsetHeight <= vspace)\n            { top = pos.bottom; }\n          if (left + node.offsetWidth > hspace)\n            { left = hspace - node.offsetWidth; }\n        }\n        node.style.top = top + \"px\";\n        node.style.left = node.style.right = \"\";\n        if (horiz == \"right\") {\n          left = display.sizer.clientWidth - node.offsetWidth;\n          node.style.right = \"0px\";\n        } else {\n          if (horiz == \"left\") { left = 0; }\n          else if (horiz == \"middle\") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }\n          node.style.left = left + \"px\";\n        }\n        if (scroll)\n          { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }\n      },\n\n      triggerOnKeyDown: methodOp(onKeyDown),\n      triggerOnKeyPress: methodOp(onKeyPress),\n      triggerOnKeyUp: onKeyUp,\n      triggerOnMouseDown: methodOp(onMouseDown),\n\n      execCommand: function(cmd) {\n        if (commands.hasOwnProperty(cmd))\n          { return commands[cmd].call(null, this) }\n      },\n\n      triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),\n\n      findPosH: function(from, amount, unit, visually) {\n        var this$1 = this;\n\n        var dir = 1;\n        if (amount < 0) { dir = -1; amount = -amount; }\n        var cur = clipPos(this.doc, from);\n        for (var i = 0; i < amount; ++i) {\n          cur = findPosH(this$1.doc, cur, dir, unit, visually);\n          if (cur.hitSide) { break }\n        }\n        return cur\n      },\n\n      moveH: methodOp(function(dir, unit) {\n        var this$1 = this;\n\n        this.extendSelectionsBy(function (range$$1) {\n          if (this$1.display.shift || this$1.doc.extend || range$$1.empty())\n            { return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) }\n          else\n            { return dir < 0 ? range$$1.from() : range$$1.to() }\n        }, sel_move);\n      }),\n\n      deleteH: methodOp(function(dir, unit) {\n        var sel = this.doc.sel, doc = this.doc;\n        if (sel.somethingSelected())\n          { doc.replaceSelection(\"\", null, \"+delete\"); }\n        else\n          { deleteNearSelection(this, function (range$$1) {\n            var other = findPosH(doc, range$$1.head, dir, unit, false);\n            return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other}\n          }); }\n      }),\n\n      findPosV: function(from, amount, unit, goalColumn) {\n        var this$1 = this;\n\n        var dir = 1, x = goalColumn;\n        if (amount < 0) { dir = -1; amount = -amount; }\n        var cur = clipPos(this.doc, from);\n        for (var i = 0; i < amount; ++i) {\n          var coords = cursorCoords(this$1, cur, \"div\");\n          if (x == null) { x = coords.left; }\n          else { coords.left = x; }\n          cur = findPosV(this$1, coords, dir, unit);\n          if (cur.hitSide) { break }\n        }\n        return cur\n      },\n\n      moveV: methodOp(function(dir, unit) {\n        var this$1 = this;\n\n        var doc = this.doc, goals = [];\n        var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();\n        doc.extendSelectionsBy(function (range$$1) {\n          if (collapse)\n            { return dir < 0 ? range$$1.from() : range$$1.to() }\n          var headPos = cursorCoords(this$1, range$$1.head, \"div\");\n          if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; }\n          goals.push(headPos.left);\n          var pos = findPosV(this$1, headPos, dir, unit);\n          if (unit == \"page\" && range$$1 == doc.sel.primary())\n            { addToScrollTop(this$1, charCoords(this$1, pos, \"div\").top - headPos.top); }\n          return pos\n        }, sel_move);\n        if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)\n          { doc.sel.ranges[i].goalColumn = goals[i]; } }\n      }),\n\n      // Find the word at the given position (as returned by coordsChar).\n      findWordAt: function(pos) {\n        var doc = this.doc, line = getLine(doc, pos.line).text;\n        var start = pos.ch, end = pos.ch;\n        if (line) {\n          var helper = this.getHelper(pos, \"wordChars\");\n          if ((pos.sticky == \"before\" || end == line.length) && start) { --start; } else { ++end; }\n          var startChar = line.charAt(start);\n          var check = isWordChar(startChar, helper)\n            ? function (ch) { return isWordChar(ch, helper); }\n            : /\\s/.test(startChar) ? function (ch) { return /\\s/.test(ch); }\n            : function (ch) { return (!/\\s/.test(ch) && !isWordChar(ch)); };\n          while (start > 0 && check(line.charAt(start - 1))) { --start; }\n          while (end < line.length && check(line.charAt(end))) { ++end; }\n        }\n        return new Range(Pos(pos.line, start), Pos(pos.line, end))\n      },\n\n      toggleOverwrite: function(value) {\n        if (value != null && value == this.state.overwrite) { return }\n        if (this.state.overwrite = !this.state.overwrite)\n          { addClass(this.display.cursorDiv, \"CodeMirror-overwrite\"); }\n        else\n          { rmClass(this.display.cursorDiv, \"CodeMirror-overwrite\"); }\n\n        signal(this, \"overwriteToggle\", this, this.state.overwrite);\n      },\n      hasFocus: function() { return this.display.input.getField() == activeElt() },\n      isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },\n\n      scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),\n      getScrollInfo: function() {\n        var scroller = this.display.scroller;\n        return {left: scroller.scrollLeft, top: scroller.scrollTop,\n                height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,\n                width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,\n                clientHeight: displayHeight(this), clientWidth: displayWidth(this)}\n      },\n\n      scrollIntoView: methodOp(function(range$$1, margin) {\n        if (range$$1 == null) {\n          range$$1 = {from: this.doc.sel.primary().head, to: null};\n          if (margin == null) { margin = this.options.cursorScrollMargin; }\n        } else if (typeof range$$1 == \"number\") {\n          range$$1 = {from: Pos(range$$1, 0), to: null};\n        } else if (range$$1.from == null) {\n          range$$1 = {from: range$$1, to: null};\n        }\n        if (!range$$1.to) { range$$1.to = range$$1.from; }\n        range$$1.margin = margin || 0;\n\n        if (range$$1.from.line != null) {\n          scrollToRange(this, range$$1);\n        } else {\n          scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin);\n        }\n      }),\n\n      setSize: methodOp(function(width, height) {\n        var this$1 = this;\n\n        var interpret = function (val) { return typeof val == \"number\" || /^\\d+$/.test(String(val)) ? val + \"px\" : val; };\n        if (width != null) { this.display.wrapper.style.width = interpret(width); }\n        if (height != null) { this.display.wrapper.style.height = interpret(height); }\n        if (this.options.lineWrapping) { clearLineMeasurementCache(this); }\n        var lineNo$$1 = this.display.viewFrom;\n        this.doc.iter(lineNo$$1, this.display.viewTo, function (line) {\n          if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)\n            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, \"widget\"); break } } }\n          ++lineNo$$1;\n        });\n        this.curOp.forceUpdate = true;\n        signal(this, \"refresh\", this);\n      }),\n\n      operation: function(f){return runInOp(this, f)},\n      startOperation: function(){return startOperation(this)},\n      endOperation: function(){return endOperation(this)},\n\n      refresh: methodOp(function() {\n        var oldHeight = this.display.cachedTextHeight;\n        regChange(this);\n        this.curOp.forceUpdate = true;\n        clearCaches(this);\n        scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);\n        updateGutterSpace(this.display);\n        if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)\n          { estimateLineHeights(this); }\n        signal(this, \"refresh\", this);\n      }),\n\n      swapDoc: methodOp(function(doc) {\n        var old = this.doc;\n        old.cm = null;\n        // Cancel the current text selection if any (#5821)\n        if (this.state.selectingText) { this.state.selectingText(); }\n        attachDoc(this, doc);\n        clearCaches(this);\n        this.display.input.reset();\n        scrollToCoords(this, doc.scrollLeft, doc.scrollTop);\n        this.curOp.forceScroll = true;\n        signalLater(this, \"swapDoc\", this, old);\n        return old\n      }),\n\n      phrase: function(phraseText) {\n        var phrases = this.options.phrases;\n        return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText\n      },\n\n      getInputField: function(){return this.display.input.getField()},\n      getWrapperElement: function(){return this.display.wrapper},\n      getScrollerElement: function(){return this.display.scroller},\n      getGutterElement: function(){return this.display.gutters}\n    };\n    eventMixin(CodeMirror);\n\n    CodeMirror.registerHelper = function(type, name, value) {\n      if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }\n      helpers[type][name] = value;\n    };\n    CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {\n      CodeMirror.registerHelper(type, name, value);\n      helpers[type]._global.push({pred: predicate, val: value});\n    };\n  }\n\n  // Used for horizontal relative motion. Dir is -1 or 1 (left or\n  // right), unit can be \"char\", \"column\" (like char, but doesn't\n  // cross line boundaries), \"word\" (across next word), or \"group\" (to\n  // the start of next group of word or non-word-non-whitespace\n  // chars). The visually param controls whether, in right-to-left\n  // text, direction 1 means to move towards the next index in the\n  // string, or towards the character to the right of the current\n  // position. The resulting position will have a hitSide=true\n  // property if it reached the end of the document.\n  function findPosH(doc, pos, dir, unit, visually) {\n    var oldPos = pos;\n    var origDir = dir;\n    var lineObj = getLine(doc, pos.line);\n    function findNextLine() {\n      var l = pos.line + dir;\n      if (l < doc.first || l >= doc.first + doc.size) { return false }\n      pos = new Pos(l, pos.ch, pos.sticky);\n      return lineObj = getLine(doc, l)\n    }\n    function moveOnce(boundToLine) {\n      var next;\n      if (visually) {\n        next = moveVisually(doc.cm, lineObj, pos, dir);\n      } else {\n        next = moveLogically(lineObj, pos, dir);\n      }\n      if (next == null) {\n        if (!boundToLine && findNextLine())\n          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); }\n        else\n          { return false }\n      } else {\n        pos = next;\n      }\n      return true\n    }\n\n    if (unit == \"char\") {\n      moveOnce();\n    } else if (unit == \"column\") {\n      moveOnce(true);\n    } else if (unit == \"word\" || unit == \"group\") {\n      var sawType = null, group = unit == \"group\";\n      var helper = doc.cm && doc.cm.getHelper(pos, \"wordChars\");\n      for (var first = true;; first = false) {\n        if (dir < 0 && !moveOnce(!first)) { break }\n        var cur = lineObj.text.charAt(pos.ch) || \"\\n\";\n        var type = isWordChar(cur, helper) ? \"w\"\n          : group && cur == \"\\n\" ? \"n\"\n          : !group || /\\s/.test(cur) ? null\n          : \"p\";\n        if (group && !first && !type) { type = \"s\"; }\n        if (sawType && sawType != type) {\n          if (dir < 0) {dir = 1; moveOnce(); pos.sticky = \"after\";}\n          break\n        }\n\n        if (type) { sawType = type; }\n        if (dir > 0 && !moveOnce(!first)) { break }\n      }\n    }\n    var result = skipAtomic(doc, pos, oldPos, origDir, true);\n    if (equalCursorPos(oldPos, result)) { result.hitSide = true; }\n    return result\n  }\n\n  // For relative vertical movement. Dir may be -1 or 1. Unit can be\n  // \"page\" or \"line\". The resulting position will have a hitSide=true\n  // property if it reached the end of the document.\n  function findPosV(cm, pos, dir, unit) {\n    var doc = cm.doc, x = pos.left, y;\n    if (unit == \"page\") {\n      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);\n      var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);\n      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;\n\n    } else if (unit == \"line\") {\n      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;\n    }\n    var target;\n    for (;;) {\n      target = coordsChar(cm, x, y);\n      if (!target.outside) { break }\n      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }\n      y += dir * 5;\n    }\n    return target\n  }\n\n  // CONTENTEDITABLE INPUT STYLE\n\n  var ContentEditableInput = function(cm) {\n    this.cm = cm;\n    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;\n    this.polling = new Delayed();\n    this.composing = null;\n    this.gracePeriod = false;\n    this.readDOMTimeout = null;\n  };\n\n  ContentEditableInput.prototype.init = function (display) {\n      var this$1 = this;\n\n    var input = this, cm = input.cm;\n    var div = input.div = display.lineDiv;\n    disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);\n\n    on(div, \"paste\", function (e) {\n      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n      // IE doesn't fire input events, so we schedule a read for the pasted content in this way\n      if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }\n    });\n\n    on(div, \"compositionstart\", function (e) {\n      this$1.composing = {data: e.data, done: false};\n    });\n    on(div, \"compositionupdate\", function (e) {\n      if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }\n    });\n    on(div, \"compositionend\", function (e) {\n      if (this$1.composing) {\n        if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }\n        this$1.composing.done = true;\n      }\n    });\n\n    on(div, \"touchstart\", function () { return input.forceCompositionEnd(); });\n\n    on(div, \"input\", function () {\n      if (!this$1.composing) { this$1.readFromDOMSoon(); }\n    });\n\n    function onCopyCut(e) {\n      if (signalDOMEvent(cm, e)) { return }\n      if (cm.somethingSelected()) {\n        setLastCopied({lineWise: false, text: cm.getSelections()});\n        if (e.type == \"cut\") { cm.replaceSelection(\"\", null, \"cut\"); }\n      } else if (!cm.options.lineWiseCopyCut) {\n        return\n      } else {\n        var ranges = copyableRanges(cm);\n        setLastCopied({lineWise: true, text: ranges.text});\n        if (e.type == \"cut\") {\n          cm.operation(function () {\n            cm.setSelections(ranges.ranges, 0, sel_dontScroll);\n            cm.replaceSelection(\"\", null, \"cut\");\n          });\n        }\n      }\n      if (e.clipboardData) {\n        e.clipboardData.clearData();\n        var content = lastCopied.text.join(\"\\n\");\n        // iOS exposes the clipboard API, but seems to discard content inserted into it\n        e.clipboardData.setData(\"Text\", content);\n        if (e.clipboardData.getData(\"Text\") == content) {\n          e.preventDefault();\n          return\n        }\n      }\n      // Old-fashioned briefly-focus-a-textarea hack\n      var kludge = hiddenTextarea(), te = kludge.firstChild;\n      cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);\n      te.value = lastCopied.text.join(\"\\n\");\n      var hadFocus = document.activeElement;\n      selectInput(te);\n      setTimeout(function () {\n        cm.display.lineSpace.removeChild(kludge);\n        hadFocus.focus();\n        if (hadFocus == div) { input.showPrimarySelection(); }\n      }, 50);\n    }\n    on(div, \"copy\", onCopyCut);\n    on(div, \"cut\", onCopyCut);\n  };\n\n  ContentEditableInput.prototype.prepareSelection = function () {\n    var result = prepareSelection(this.cm, false);\n    result.focus = this.cm.state.focused;\n    return result\n  };\n\n  ContentEditableInput.prototype.showSelection = function (info, takeFocus) {\n    if (!info || !this.cm.display.view.length) { return }\n    if (info.focus || takeFocus) { this.showPrimarySelection(); }\n    this.showMultipleSelections(info);\n  };\n\n  ContentEditableInput.prototype.getSelection = function () {\n    return this.cm.display.wrapper.ownerDocument.getSelection()\n  };\n\n  ContentEditableInput.prototype.showPrimarySelection = function () {\n    var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();\n    var from = prim.from(), to = prim.to();\n\n    if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {\n      sel.removeAllRanges();\n      return\n    }\n\n    var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\n    var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);\n    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&\n        cmp(minPos(curAnchor, curFocus), from) == 0 &&\n        cmp(maxPos(curAnchor, curFocus), to) == 0)\n      { return }\n\n    var view = cm.display.view;\n    var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||\n        {node: view[0].measure.map[2], offset: 0};\n    var end = to.line < cm.display.viewTo && posToDOM(cm, to);\n    if (!end) {\n      var measure = view[view.length - 1].measure;\n      var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;\n      end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]};\n    }\n\n    if (!start || !end) {\n      sel.removeAllRanges();\n      return\n    }\n\n    var old = sel.rangeCount && sel.getRangeAt(0), rng;\n    try { rng = range(start.node, start.offset, end.offset, end.node); }\n    catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible\n    if (rng) {\n      if (!gecko && cm.state.focused) {\n        sel.collapse(start.node, start.offset);\n        if (!rng.collapsed) {\n          sel.removeAllRanges();\n          sel.addRange(rng);\n        }\n      } else {\n        sel.removeAllRanges();\n        sel.addRange(rng);\n      }\n      if (old && sel.anchorNode == null) { sel.addRange(old); }\n      else if (gecko) { this.startGracePeriod(); }\n    }\n    this.rememberSelection();\n  };\n\n  ContentEditableInput.prototype.startGracePeriod = function () {\n      var this$1 = this;\n\n    clearTimeout(this.gracePeriod);\n    this.gracePeriod = setTimeout(function () {\n      this$1.gracePeriod = false;\n      if (this$1.selectionChanged())\n        { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }\n    }, 20);\n  };\n\n  ContentEditableInput.prototype.showMultipleSelections = function (info) {\n    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);\n    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);\n  };\n\n  ContentEditableInput.prototype.rememberSelection = function () {\n    var sel = this.getSelection();\n    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;\n    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;\n  };\n\n  ContentEditableInput.prototype.selectionInEditor = function () {\n    var sel = this.getSelection();\n    if (!sel.rangeCount) { return false }\n    var node = sel.getRangeAt(0).commonAncestorContainer;\n    return contains(this.div, node)\n  };\n\n  ContentEditableInput.prototype.focus = function () {\n    if (this.cm.options.readOnly != \"nocursor\") {\n      if (!this.selectionInEditor())\n        { this.showSelection(this.prepareSelection(), true); }\n      this.div.focus();\n    }\n  };\n  ContentEditableInput.prototype.blur = function () { this.div.blur(); };\n  ContentEditableInput.prototype.getField = function () { return this.div };\n\n  ContentEditableInput.prototype.supportsTouch = function () { return true };\n\n  ContentEditableInput.prototype.receivedFocus = function () {\n    var input = this;\n    if (this.selectionInEditor())\n      { this.pollSelection(); }\n    else\n      { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }\n\n    function poll() {\n      if (input.cm.state.focused) {\n        input.pollSelection();\n        input.polling.set(input.cm.options.pollInterval, poll);\n      }\n    }\n    this.polling.set(this.cm.options.pollInterval, poll);\n  };\n\n  ContentEditableInput.prototype.selectionChanged = function () {\n    var sel = this.getSelection();\n    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||\n      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset\n  };\n\n  ContentEditableInput.prototype.pollSelection = function () {\n    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }\n    var sel = this.getSelection(), cm = this.cm;\n    // On Android Chrome (version 56, at least), backspacing into an\n    // uneditable block element will put the cursor in that element,\n    // and then, because it's not editable, hide the virtual keyboard.\n    // Because Android doesn't allow us to actually detect backspace\n    // presses in a sane way, this code checks for when that happens\n    // and simulates a backspace press in this case.\n    if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {\n      this.cm.triggerOnKeyDown({type: \"keydown\", keyCode: 8, preventDefault: Math.abs});\n      this.blur();\n      this.focus();\n      return\n    }\n    if (this.composing) { return }\n    this.rememberSelection();\n    var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\n    var head = domToPos(cm, sel.focusNode, sel.focusOffset);\n    if (anchor && head) { runInOp(cm, function () {\n      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);\n      if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }\n    }); }\n  };\n\n  ContentEditableInput.prototype.pollContent = function () {\n    if (this.readDOMTimeout != null) {\n      clearTimeout(this.readDOMTimeout);\n      this.readDOMTimeout = null;\n    }\n\n    var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();\n    var from = sel.from(), to = sel.to();\n    if (from.ch == 0 && from.line > cm.firstLine())\n      { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }\n    if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())\n      { to = Pos(to.line + 1, 0); }\n    if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }\n\n    var fromIndex, fromLine, fromNode;\n    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {\n      fromLine = lineNo(display.view[0].line);\n      fromNode = display.view[0].node;\n    } else {\n      fromLine = lineNo(display.view[fromIndex].line);\n      fromNode = display.view[fromIndex - 1].node.nextSibling;\n    }\n    var toIndex = findViewIndex(cm, to.line);\n    var toLine, toNode;\n    if (toIndex == display.view.length - 1) {\n      toLine = display.viewTo - 1;\n      toNode = display.lineDiv.lastChild;\n    } else {\n      toLine = lineNo(display.view[toIndex + 1].line) - 1;\n      toNode = display.view[toIndex + 1].node.previousSibling;\n    }\n\n    if (!fromNode) { return false }\n    var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));\n    var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));\n    while (newText.length > 1 && oldText.length > 1) {\n      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }\n      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }\n      else { break }\n    }\n\n    var cutFront = 0, cutEnd = 0;\n    var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);\n    while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))\n      { ++cutFront; }\n    var newBot = lst(newText), oldBot = lst(oldText);\n    var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),\n                             oldBot.length - (oldText.length == 1 ? cutFront : 0));\n    while (cutEnd < maxCutEnd &&\n           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))\n      { ++cutEnd; }\n    // Try to move start of change to start of selection if ambiguous\n    if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {\n      while (cutFront && cutFront > from.ch &&\n             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {\n        cutFront--;\n        cutEnd++;\n      }\n    }\n\n    newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\\u200b+/, \"\");\n    newText[0] = newText[0].slice(cutFront).replace(/\\u200b+$/, \"\");\n\n    var chFrom = Pos(fromLine, cutFront);\n    var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);\n    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {\n      replaceRange(cm.doc, newText, chFrom, chTo, \"+input\");\n      return true\n    }\n  };\n\n  ContentEditableInput.prototype.ensurePolled = function () {\n    this.forceCompositionEnd();\n  };\n  ContentEditableInput.prototype.reset = function () {\n    this.forceCompositionEnd();\n  };\n  ContentEditableInput.prototype.forceCompositionEnd = function () {\n    if (!this.composing) { return }\n    clearTimeout(this.readDOMTimeout);\n    this.composing = null;\n    this.updateFromDOM();\n    this.div.blur();\n    this.div.focus();\n  };\n  ContentEditableInput.prototype.readFromDOMSoon = function () {\n      var this$1 = this;\n\n    if (this.readDOMTimeout != null) { return }\n    this.readDOMTimeout = setTimeout(function () {\n      this$1.readDOMTimeout = null;\n      if (this$1.composing) {\n        if (this$1.composing.done) { this$1.composing = null; }\n        else { return }\n      }\n      this$1.updateFromDOM();\n    }, 80);\n  };\n\n  ContentEditableInput.prototype.updateFromDOM = function () {\n      var this$1 = this;\n\n    if (this.cm.isReadOnly() || !this.pollContent())\n      { runInOp(this.cm, function () { return regChange(this$1.cm); }); }\n  };\n\n  ContentEditableInput.prototype.setUneditable = function (node) {\n    node.contentEditable = \"false\";\n  };\n\n  ContentEditableInput.prototype.onKeyPress = function (e) {\n    if (e.charCode == 0 || this.composing) { return }\n    e.preventDefault();\n    if (!this.cm.isReadOnly())\n      { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }\n  };\n\n  ContentEditableInput.prototype.readOnlyChanged = function (val) {\n    this.div.contentEditable = String(val != \"nocursor\");\n  };\n\n  ContentEditableInput.prototype.onContextMenu = function () {};\n  ContentEditableInput.prototype.resetPosition = function () {};\n\n  ContentEditableInput.prototype.needsContentAttribute = true;\n\n  function posToDOM(cm, pos) {\n    var view = findViewForLine(cm, pos.line);\n    if (!view || view.hidden) { return null }\n    var line = getLine(cm.doc, pos.line);\n    var info = mapFromLineView(view, line, pos.line);\n\n    var order = getOrder(line, cm.doc.direction), side = \"left\";\n    if (order) {\n      var partPos = getBidiPartAt(order, pos.ch);\n      side = partPos % 2 ? \"right\" : \"left\";\n    }\n    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);\n    result.offset = result.collapse == \"right\" ? result.end : result.start;\n    return result\n  }\n\n  function isInGutter(node) {\n    for (var scan = node; scan; scan = scan.parentNode)\n      { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }\n    return false\n  }\n\n  function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }\n\n  function domTextBetween(cm, from, to, fromLine, toLine) {\n    var text = \"\", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;\n    function recognizeMarker(id) { return function (marker) { return marker.id == id; } }\n    function close() {\n      if (closing) {\n        text += lineSep;\n        if (extraLinebreak) { text += lineSep; }\n        closing = extraLinebreak = false;\n      }\n    }\n    function addText(str) {\n      if (str) {\n        close();\n        text += str;\n      }\n    }\n    function walk(node) {\n      if (node.nodeType == 1) {\n        var cmText = node.getAttribute(\"cm-text\");\n        if (cmText) {\n          addText(cmText);\n          return\n        }\n        var markerID = node.getAttribute(\"cm-marker\"), range$$1;\n        if (markerID) {\n          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));\n          if (found.length && (range$$1 = found[0].find(0)))\n            { addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); }\n          return\n        }\n        if (node.getAttribute(\"contenteditable\") == \"false\") { return }\n        var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);\n        if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }\n\n        if (isBlock) { close(); }\n        for (var i = 0; i < node.childNodes.length; i++)\n          { walk(node.childNodes[i]); }\n\n        if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }\n        if (isBlock) { closing = true; }\n      } else if (node.nodeType == 3) {\n        addText(node.nodeValue.replace(/\\u200b/g, \"\").replace(/\\u00a0/g, \" \"));\n      }\n    }\n    for (;;) {\n      walk(from);\n      if (from == to) { break }\n      from = from.nextSibling;\n      extraLinebreak = false;\n    }\n    return text\n  }\n\n  function domToPos(cm, node, offset) {\n    var lineNode;\n    if (node == cm.display.lineDiv) {\n      lineNode = cm.display.lineDiv.childNodes[offset];\n      if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }\n      node = null; offset = 0;\n    } else {\n      for (lineNode = node;; lineNode = lineNode.parentNode) {\n        if (!lineNode || lineNode == cm.display.lineDiv) { return null }\n        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }\n      }\n    }\n    for (var i = 0; i < cm.display.view.length; i++) {\n      var lineView = cm.display.view[i];\n      if (lineView.node == lineNode)\n        { return locateNodeInLineView(lineView, node, offset) }\n    }\n  }\n\n  function locateNodeInLineView(lineView, node, offset) {\n    var wrapper = lineView.text.firstChild, bad = false;\n    if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }\n    if (node == wrapper) {\n      bad = true;\n      node = wrapper.childNodes[offset];\n      offset = 0;\n      if (!node) {\n        var line = lineView.rest ? lst(lineView.rest) : lineView.line;\n        return badPos(Pos(lineNo(line), line.text.length), bad)\n      }\n    }\n\n    var textNode = node.nodeType == 3 ? node : null, topNode = node;\n    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {\n      textNode = node.firstChild;\n      if (offset) { offset = textNode.nodeValue.length; }\n    }\n    while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }\n    var measure = lineView.measure, maps = measure.maps;\n\n    function find(textNode, topNode, offset) {\n      for (var i = -1; i < (maps ? maps.length : 0); i++) {\n        var map$$1 = i < 0 ? measure.map : maps[i];\n        for (var j = 0; j < map$$1.length; j += 3) {\n          var curNode = map$$1[j + 2];\n          if (curNode == textNode || curNode == topNode) {\n            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);\n            var ch = map$$1[j] + offset;\n            if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; }\n            return Pos(line, ch)\n          }\n        }\n      }\n    }\n    var found = find(textNode, topNode, offset);\n    if (found) { return badPos(found, bad) }\n\n    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems\n    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {\n      found = find(after, after.firstChild, 0);\n      if (found)\n        { return badPos(Pos(found.line, found.ch - dist), bad) }\n      else\n        { dist += after.textContent.length; }\n    }\n    for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {\n      found = find(before, before.firstChild, -1);\n      if (found)\n        { return badPos(Pos(found.line, found.ch + dist$1), bad) }\n      else\n        { dist$1 += before.textContent.length; }\n    }\n  }\n\n  // TEXTAREA INPUT STYLE\n\n  var TextareaInput = function(cm) {\n    this.cm = cm;\n    // See input.poll and input.reset\n    this.prevInput = \"\";\n\n    // Flag that indicates whether we expect input to appear real soon\n    // now (after some event like 'keypress' or 'input') and are\n    // polling intensively.\n    this.pollingFast = false;\n    // Self-resetting timeout for the poller\n    this.polling = new Delayed();\n    // Used to work around IE issue with selection being forgotten when focus moves away from textarea\n    this.hasSelection = false;\n    this.composing = null;\n  };\n\n  TextareaInput.prototype.init = function (display) {\n      var this$1 = this;\n\n    var input = this, cm = this.cm;\n    this.createField(display);\n    var te = this.textarea;\n\n    display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);\n\n    // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)\n    if (ios) { te.style.width = \"0px\"; }\n\n    on(te, \"input\", function () {\n      if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }\n      input.poll();\n    });\n\n    on(te, \"paste\", function (e) {\n      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n\n      cm.state.pasteIncoming = +new Date;\n      input.fastPoll();\n    });\n\n    function prepareCopyCut(e) {\n      if (signalDOMEvent(cm, e)) { return }\n      if (cm.somethingSelected()) {\n        setLastCopied({lineWise: false, text: cm.getSelections()});\n      } else if (!cm.options.lineWiseCopyCut) {\n        return\n      } else {\n        var ranges = copyableRanges(cm);\n        setLastCopied({lineWise: true, text: ranges.text});\n        if (e.type == \"cut\") {\n          cm.setSelections(ranges.ranges, null, sel_dontScroll);\n        } else {\n          input.prevInput = \"\";\n          te.value = ranges.text.join(\"\\n\");\n          selectInput(te);\n        }\n      }\n      if (e.type == \"cut\") { cm.state.cutIncoming = +new Date; }\n    }\n    on(te, \"cut\", prepareCopyCut);\n    on(te, \"copy\", prepareCopyCut);\n\n    on(display.scroller, \"paste\", function (e) {\n      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }\n      if (!te.dispatchEvent) {\n        cm.state.pasteIncoming = +new Date;\n        input.focus();\n        return\n      }\n\n      // Pass the `paste` event to the textarea so it's handled by its event listener.\n      var event = new Event(\"paste\");\n      event.clipboardData = e.clipboardData;\n      te.dispatchEvent(event);\n    });\n\n    // Prevent normal selection in the editor (we handle our own)\n    on(display.lineSpace, \"selectstart\", function (e) {\n      if (!eventInWidget(display, e)) { e_preventDefault(e); }\n    });\n\n    on(te, \"compositionstart\", function () {\n      var start = cm.getCursor(\"from\");\n      if (input.composing) { input.composing.range.clear(); }\n      input.composing = {\n        start: start,\n        range: cm.markText(start, cm.getCursor(\"to\"), {className: \"CodeMirror-composing\"})\n      };\n    });\n    on(te, \"compositionend\", function () {\n      if (input.composing) {\n        input.poll();\n        input.composing.range.clear();\n        input.composing = null;\n      }\n    });\n  };\n\n  TextareaInput.prototype.createField = function (_display) {\n    // Wraps and hides input textarea\n    this.wrapper = hiddenTextarea();\n    // The semihidden textarea that is focused when the editor is\n    // focused, and receives input.\n    this.textarea = this.wrapper.firstChild;\n  };\n\n  TextareaInput.prototype.prepareSelection = function () {\n    // Redraw the selection and/or cursor\n    var cm = this.cm, display = cm.display, doc = cm.doc;\n    var result = prepareSelection(cm);\n\n    // Move the hidden textarea near the cursor to prevent scrolling artifacts\n    if (cm.options.moveInputWithCursor) {\n      var headPos = cursorCoords(cm, doc.sel.primary().head, \"div\");\n      var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();\n      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,\n                                          headPos.top + lineOff.top - wrapOff.top));\n      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,\n                                           headPos.left + lineOff.left - wrapOff.left));\n    }\n\n    return result\n  };\n\n  TextareaInput.prototype.showSelection = function (drawn) {\n    var cm = this.cm, display = cm.display;\n    removeChildrenAndAdd(display.cursorDiv, drawn.cursors);\n    removeChildrenAndAdd(display.selectionDiv, drawn.selection);\n    if (drawn.teTop != null) {\n      this.wrapper.style.top = drawn.teTop + \"px\";\n      this.wrapper.style.left = drawn.teLeft + \"px\";\n    }\n  };\n\n  // Reset the input to correspond to the selection (or to be empty,\n  // when not typing and nothing is selected)\n  TextareaInput.prototype.reset = function (typing) {\n    if (this.contextMenuPending || this.composing) { return }\n    var cm = this.cm;\n    if (cm.somethingSelected()) {\n      this.prevInput = \"\";\n      var content = cm.getSelection();\n      this.textarea.value = content;\n      if (cm.state.focused) { selectInput(this.textarea); }\n      if (ie && ie_version >= 9) { this.hasSelection = content; }\n    } else if (!typing) {\n      this.prevInput = this.textarea.value = \"\";\n      if (ie && ie_version >= 9) { this.hasSelection = null; }\n    }\n  };\n\n  TextareaInput.prototype.getField = function () { return this.textarea };\n\n  TextareaInput.prototype.supportsTouch = function () { return false };\n\n  TextareaInput.prototype.focus = function () {\n    if (this.cm.options.readOnly != \"nocursor\" && (!mobile || activeElt() != this.textarea)) {\n      try { this.textarea.focus(); }\n      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM\n    }\n  };\n\n  TextareaInput.prototype.blur = function () { this.textarea.blur(); };\n\n  TextareaInput.prototype.resetPosition = function () {\n    this.wrapper.style.top = this.wrapper.style.left = 0;\n  };\n\n  TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };\n\n  // Poll for input changes, using the normal rate of polling. This\n  // runs as long as the editor is focused.\n  TextareaInput.prototype.slowPoll = function () {\n      var this$1 = this;\n\n    if (this.pollingFast) { return }\n    this.polling.set(this.cm.options.pollInterval, function () {\n      this$1.poll();\n      if (this$1.cm.state.focused) { this$1.slowPoll(); }\n    });\n  };\n\n  // When an event has just come in that is likely to add or change\n  // something in the input textarea, we poll faster, to ensure that\n  // the change appears on the screen quickly.\n  TextareaInput.prototype.fastPoll = function () {\n    var missed = false, input = this;\n    input.pollingFast = true;\n    function p() {\n      var changed = input.poll();\n      if (!changed && !missed) {missed = true; input.polling.set(60, p);}\n      else {input.pollingFast = false; input.slowPoll();}\n    }\n    input.polling.set(20, p);\n  };\n\n  // Read input from the textarea, and update the document to match.\n  // When something is selected, it is present in the textarea, and\n  // selected (unless it is huge, in which case a placeholder is\n  // used). When nothing is selected, the cursor sits after previously\n  // seen text (can be empty), which is stored in prevInput (we must\n  // not reset the textarea when typing, because that breaks IME).\n  TextareaInput.prototype.poll = function () {\n      var this$1 = this;\n\n    var cm = this.cm, input = this.textarea, prevInput = this.prevInput;\n    // Since this is called a *lot*, try to bail out as cheaply as\n    // possible when it is clear that nothing happened. hasSelection\n    // will be the case when there is a lot of text in the textarea,\n    // in which case reading its value would be expensive.\n    if (this.contextMenuPending || !cm.state.focused ||\n        (hasSelection(input) && !prevInput && !this.composing) ||\n        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)\n      { return false }\n\n    var text = input.value;\n    // If nothing changed, bail.\n    if (text == prevInput && !cm.somethingSelected()) { return false }\n    // Work around nonsensical selection resetting in IE9/10, and\n    // inexplicable appearance of private area unicode characters on\n    // some key combos in Mac (#2689).\n    if (ie && ie_version >= 9 && this.hasSelection === text ||\n        mac && /[\\uf700-\\uf7ff]/.test(text)) {\n      cm.display.input.reset();\n      return false\n    }\n\n    if (cm.doc.sel == cm.display.selForContextMenu) {\n      var first = text.charCodeAt(0);\n      if (first == 0x200b && !prevInput) { prevInput = \"\\u200b\"; }\n      if (first == 0x21da) { this.reset(); return this.cm.execCommand(\"undo\") }\n    }\n    // Find the part of the input that is actually new\n    var same = 0, l = Math.min(prevInput.length, text.length);\n    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }\n\n    runInOp(cm, function () {\n      applyTextInput(cm, text.slice(same), prevInput.length - same,\n                     null, this$1.composing ? \"*compose\" : null);\n\n      // Don't leave long text in the textarea, since it makes further polling slow\n      if (text.length > 1000 || text.indexOf(\"\\n\") > -1) { input.value = this$1.prevInput = \"\"; }\n      else { this$1.prevInput = text; }\n\n      if (this$1.composing) {\n        this$1.composing.range.clear();\n        this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor(\"to\"),\n                                           {className: \"CodeMirror-composing\"});\n      }\n    });\n    return true\n  };\n\n  TextareaInput.prototype.ensurePolled = function () {\n    if (this.pollingFast && this.poll()) { this.pollingFast = false; }\n  };\n\n  TextareaInput.prototype.onKeyPress = function () {\n    if (ie && ie_version >= 9) { this.hasSelection = null; }\n    this.fastPoll();\n  };\n\n  TextareaInput.prototype.onContextMenu = function (e) {\n    var input = this, cm = input.cm, display = cm.display, te = input.textarea;\n    if (input.contextMenuPending) { input.contextMenuPending(); }\n    var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;\n    if (!pos || presto) { return } // Opera is difficult.\n\n    // Reset the current text selection only if the click is done outside of the selection\n    // and 'resetSelectionOnContextMenu' option is true.\n    var reset = cm.options.resetSelectionOnContextMenu;\n    if (reset && cm.doc.sel.contains(pos) == -1)\n      { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }\n\n    var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;\n    var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();\n    input.wrapper.style.cssText = \"position: static\";\n    te.style.cssText = \"position: absolute; width: 30px; height: 30px;\\n      top: \" + (e.clientY - wrapperBox.top - 5) + \"px; left: \" + (e.clientX - wrapperBox.left - 5) + \"px;\\n      z-index: 1000; background: \" + (ie ? \"rgba(255, 255, 255, .05)\" : \"transparent\") + \";\\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);\";\n    var oldScrollY;\n    if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)\n    display.input.focus();\n    if (webkit) { window.scrollTo(null, oldScrollY); }\n    display.input.reset();\n    // Adds \"Select all\" to context menu in FF\n    if (!cm.somethingSelected()) { te.value = input.prevInput = \" \"; }\n    input.contextMenuPending = rehide;\n    display.selForContextMenu = cm.doc.sel;\n    clearTimeout(display.detectingSelectAll);\n\n    // Select-all will be greyed out if there's nothing to select, so\n    // this adds a zero-width space so that we can later check whether\n    // it got selected.\n    function prepareSelectAllHack() {\n      if (te.selectionStart != null) {\n        var selected = cm.somethingSelected();\n        var extval = \"\\u200b\" + (selected ? te.value : \"\");\n        te.value = \"\\u21da\"; // Used to catch context-menu undo\n        te.value = extval;\n        input.prevInput = selected ? \"\" : \"\\u200b\";\n        te.selectionStart = 1; te.selectionEnd = extval.length;\n        // Re-set this, in case some other handler touched the\n        // selection in the meantime.\n        display.selForContextMenu = cm.doc.sel;\n      }\n    }\n    function rehide() {\n      if (input.contextMenuPending != rehide) { return }\n      input.contextMenuPending = false;\n      input.wrapper.style.cssText = oldWrapperCSS;\n      te.style.cssText = oldCSS;\n      if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }\n\n      // Try to detect the user choosing select-all\n      if (te.selectionStart != null) {\n        if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }\n        var i = 0, poll = function () {\n          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&\n              te.selectionEnd > 0 && input.prevInput == \"\\u200b\") {\n            operation(cm, selectAll)(cm);\n          } else if (i++ < 10) {\n            display.detectingSelectAll = setTimeout(poll, 500);\n          } else {\n            display.selForContextMenu = null;\n            display.input.reset();\n          }\n        };\n        display.detectingSelectAll = setTimeout(poll, 200);\n      }\n    }\n\n    if (ie && ie_version >= 9) { prepareSelectAllHack(); }\n    if (captureRightClick) {\n      e_stop(e);\n      var mouseup = function () {\n        off(window, \"mouseup\", mouseup);\n        setTimeout(rehide, 20);\n      };\n      on(window, \"mouseup\", mouseup);\n    } else {\n      setTimeout(rehide, 50);\n    }\n  };\n\n  TextareaInput.prototype.readOnlyChanged = function (val) {\n    if (!val) { this.reset(); }\n    this.textarea.disabled = val == \"nocursor\";\n  };\n\n  TextareaInput.prototype.setUneditable = function () {};\n\n  TextareaInput.prototype.needsContentAttribute = false;\n\n  function fromTextArea(textarea, options) {\n    options = options ? copyObj(options) : {};\n    options.value = textarea.value;\n    if (!options.tabindex && textarea.tabIndex)\n      { options.tabindex = textarea.tabIndex; }\n    if (!options.placeholder && textarea.placeholder)\n      { options.placeholder = textarea.placeholder; }\n    // Set autofocus to true if this textarea is focused, or if it has\n    // autofocus and no other element is focused.\n    if (options.autofocus == null) {\n      var hasFocus = activeElt();\n      options.autofocus = hasFocus == textarea ||\n        textarea.getAttribute(\"autofocus\") != null && hasFocus == document.body;\n    }\n\n    function save() {textarea.value = cm.getValue();}\n\n    var realSubmit;\n    if (textarea.form) {\n      on(textarea.form, \"submit\", save);\n      // Deplorable hack to make the submit method do the right thing.\n      if (!options.leaveSubmitMethodAlone) {\n        var form = textarea.form;\n        realSubmit = form.submit;\n        try {\n          var wrappedSubmit = form.submit = function () {\n            save();\n            form.submit = realSubmit;\n            form.submit();\n            form.submit = wrappedSubmit;\n          };\n        } catch(e) {}\n      }\n    }\n\n    options.finishInit = function (cm) {\n      cm.save = save;\n      cm.getTextArea = function () { return textarea; };\n      cm.toTextArea = function () {\n        cm.toTextArea = isNaN; // Prevent this from being ran twice\n        save();\n        textarea.parentNode.removeChild(cm.getWrapperElement());\n        textarea.style.display = \"\";\n        if (textarea.form) {\n          off(textarea.form, \"submit\", save);\n          if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == \"function\")\n            { textarea.form.submit = realSubmit; }\n        }\n      };\n    };\n\n    textarea.style.display = \"none\";\n    var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },\n      options);\n    return cm\n  }\n\n  function addLegacyProps(CodeMirror) {\n    CodeMirror.off = off;\n    CodeMirror.on = on;\n    CodeMirror.wheelEventPixels = wheelEventPixels;\n    CodeMirror.Doc = Doc;\n    CodeMirror.splitLines = splitLinesAuto;\n    CodeMirror.countColumn = countColumn;\n    CodeMirror.findColumn = findColumn;\n    CodeMirror.isWordChar = isWordCharBasic;\n    CodeMirror.Pass = Pass;\n    CodeMirror.signal = signal;\n    CodeMirror.Line = Line;\n    CodeMirror.changeEnd = changeEnd;\n    CodeMirror.scrollbarModel = scrollbarModel;\n    CodeMirror.Pos = Pos;\n    CodeMirror.cmpPos = cmp;\n    CodeMirror.modes = modes;\n    CodeMirror.mimeModes = mimeModes;\n    CodeMirror.resolveMode = resolveMode;\n    CodeMirror.getMode = getMode;\n    CodeMirror.modeExtensions = modeExtensions;\n    CodeMirror.extendMode = extendMode;\n    CodeMirror.copyState = copyState;\n    CodeMirror.startState = startState;\n    CodeMirror.innerMode = innerMode;\n    CodeMirror.commands = commands;\n    CodeMirror.keyMap = keyMap;\n    CodeMirror.keyName = keyName;\n    CodeMirror.isModifierKey = isModifierKey;\n    CodeMirror.lookupKey = lookupKey;\n    CodeMirror.normalizeKeyMap = normalizeKeyMap;\n    CodeMirror.StringStream = StringStream;\n    CodeMirror.SharedTextMarker = SharedTextMarker;\n    CodeMirror.TextMarker = TextMarker;\n    CodeMirror.LineWidget = LineWidget;\n    CodeMirror.e_preventDefault = e_preventDefault;\n    CodeMirror.e_stopPropagation = e_stopPropagation;\n    CodeMirror.e_stop = e_stop;\n    CodeMirror.addClass = addClass;\n    CodeMirror.contains = contains;\n    CodeMirror.rmClass = rmClass;\n    CodeMirror.keyNames = keyNames;\n  }\n\n  // EDITOR CONSTRUCTOR\n\n  defineOptions(CodeMirror);\n\n  addEditorMethods(CodeMirror);\n\n  // Set up methods on CodeMirror's prototype to redirect to the editor's document.\n  var dontDelegate = \"iter insert remove copy getEditor constructor\".split(\" \");\n  for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)\n    { CodeMirror.prototype[prop] = (function(method) {\n      return function() {return method.apply(this.doc, arguments)}\n    })(Doc.prototype[prop]); } }\n\n  eventMixin(Doc);\n  CodeMirror.inputStyles = {\"textarea\": TextareaInput, \"contenteditable\": ContentEditableInput};\n\n  // Extra arguments are stored as the mode's dependencies, which is\n  // used by (legacy) mechanisms like loadmode.js to automatically\n  // load a mode. (Preferred mechanism is the require/define calls.)\n  CodeMirror.defineMode = function(name/*, mode, …*/) {\n    if (!CodeMirror.defaults.mode && name != \"null\") { CodeMirror.defaults.mode = name; }\n    defineMode.apply(this, arguments);\n  };\n\n  CodeMirror.defineMIME = defineMIME;\n\n  // Minimal default mode.\n  CodeMirror.defineMode(\"null\", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });\n  CodeMirror.defineMIME(\"text/plain\", \"null\");\n\n  // EXTENSIONS\n\n  CodeMirror.defineExtension = function (name, func) {\n    CodeMirror.prototype[name] = func;\n  };\n  CodeMirror.defineDocExtension = function (name, func) {\n    Doc.prototype[name] = func;\n  };\n\n  CodeMirror.fromTextArea = fromTextArea;\n\n  addLegacyProps(CodeMirror);\n\n  CodeMirror.version = \"5.49.2\";\n\n  return CodeMirror;\n\n})));\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"), require(\"../markdown/markdown\"), require(\"../../addon/mode/overlay\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\", \"../markdown/markdown\", \"../../addon/mode/overlay\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nvar urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\\.beep|\\.lwz|\\.xpc|\\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\\.beeps?|xmpp|xri|ymsgr|z39\\.50[rs]?):(?:\\/{1,3}|[a-z0-9%])|www\\d{0,3}[.]|[a-z0-9.\\-]+[.][a-z]{2,4}\\/)(?:[^\\s()<>]|\\([^\\s()<>]*\\))+(?:\\([^\\s()<>]*\\)|[^\\s`*!()\\[\\]{};:'\".,<>?«»“”‘’]))/i\n\nCodeMirror.defineMode(\"gfm\", function(config, modeConfig) {\n  var codeDepth = 0;\n  function blankLine(state) {\n    state.code = false;\n    return null;\n  }\n  var gfmOverlay = {\n    startState: function() {\n      return {\n        code: false,\n        codeBlock: false,\n        ateSpace: false\n      };\n    },\n    copyState: function(s) {\n      return {\n        code: s.code,\n        codeBlock: s.codeBlock,\n        ateSpace: s.ateSpace\n      };\n    },\n    token: function(stream, state) {\n      state.combineTokens = null;\n\n      // Hack to prevent formatting override inside code blocks (block and inline)\n      if (state.codeBlock) {\n        if (stream.match(/^```+/)) {\n          state.codeBlock = false;\n          return null;\n        }\n        stream.skipToEnd();\n        return null;\n      }\n      if (stream.sol()) {\n        state.code = false;\n      }\n      if (stream.sol() && stream.match(/^```+/)) {\n        stream.skipToEnd();\n        state.codeBlock = true;\n        return null;\n      }\n      // If this block is changed, it may need to be updated in Markdown mode\n      if (stream.peek() === '`') {\n        stream.next();\n        var before = stream.pos;\n        stream.eatWhile('`');\n        var difference = 1 + stream.pos - before;\n        if (!state.code) {\n          codeDepth = difference;\n          state.code = true;\n        } else {\n          if (difference === codeDepth) { // Must be exact\n            state.code = false;\n          }\n        }\n        return null;\n      } else if (state.code) {\n        stream.next();\n        return null;\n      }\n      // Check if space. If so, links can be formatted later on\n      if (stream.eatSpace()) {\n        state.ateSpace = true;\n        return null;\n      }\n      if (stream.sol() || state.ateSpace) {\n        state.ateSpace = false;\n        if (modeConfig.gitHubSpice !== false) {\n          if(stream.match(/^(?:[a-zA-Z0-9\\-_]+\\/)?(?:[a-zA-Z0-9\\-_]+@)?(?=.{0,6}\\d)(?:[a-f0-9]{7,40}\\b)/)) {\n            // User/Project@SHA\n            // User@SHA\n            // SHA\n            state.combineTokens = true;\n            return \"link\";\n          } else if (stream.match(/^(?:[a-zA-Z0-9\\-_]+\\/)?(?:[a-zA-Z0-9\\-_]+)?#[0-9]+\\b/)) {\n            // User/Project#Num\n            // User#Num\n            // #Num\n            state.combineTokens = true;\n            return \"link\";\n          }\n        }\n      }\n      if (stream.match(urlRE) &&\n          stream.string.slice(stream.start - 2, stream.start) != \"](\" &&\n          (stream.start == 0 || /\\W/.test(stream.string.charAt(stream.start - 1)))) {\n        // URLs\n        // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls\n        // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine\n        // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL\n        state.combineTokens = true;\n        return \"link\";\n      }\n      stream.next();\n      return null;\n    },\n    blankLine: blankLine\n  };\n\n  var markdownConfig = {\n    taskLists: true,\n    strikethrough: true,\n    emoji: true\n  };\n  for (var attr in modeConfig) {\n    markdownConfig[attr] = modeConfig[attr];\n  }\n  markdownConfig.name = \"markdown\";\n  return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);\n\n}, \"markdown\");\n\n  CodeMirror.defineMIME(\"text/x-gfm\", \"gfm\");\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"), require(\"../xml/xml\"), require(\"../meta\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\", \"../xml/xml\", \"../meta\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nCodeMirror.defineMode(\"markdown\", function(cmCfg, modeCfg) {\n\n  var htmlMode = CodeMirror.getMode(cmCfg, \"text/html\");\n  var htmlModeMissing = htmlMode.name == \"null\"\n\n  function getMode(name) {\n    if (CodeMirror.findModeByName) {\n      var found = CodeMirror.findModeByName(name);\n      if (found) name = found.mime || found.mimes[0];\n    }\n    var mode = CodeMirror.getMode(cmCfg, name);\n    return mode.name == \"null\" ? null : mode;\n  }\n\n  // Should characters that affect highlighting be highlighted separate?\n  // Does not include characters that will be output (such as `1.` and `-` for lists)\n  if (modeCfg.highlightFormatting === undefined)\n    modeCfg.highlightFormatting = false;\n\n  // Maximum number of nested blockquotes. Set to 0 for infinite nesting.\n  // Excess `>` will emit `error` token.\n  if (modeCfg.maxBlockquoteDepth === undefined)\n    modeCfg.maxBlockquoteDepth = 0;\n\n  // Turn on task lists? (\"- [ ] \" and \"- [x] \")\n  if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;\n\n  // Turn on strikethrough syntax\n  if (modeCfg.strikethrough === undefined)\n    modeCfg.strikethrough = false;\n\n  if (modeCfg.emoji === undefined)\n    modeCfg.emoji = false;\n\n  if (modeCfg.fencedCodeBlockHighlighting === undefined)\n    modeCfg.fencedCodeBlockHighlighting = true;\n\n  if (modeCfg.xml === undefined)\n    modeCfg.xml = true;\n\n  // Allow token types to be overridden by user-provided token types.\n  if (modeCfg.tokenTypeOverrides === undefined)\n    modeCfg.tokenTypeOverrides = {};\n\n  var tokenTypes = {\n    header: \"header\",\n    code: \"comment\",\n    quote: \"quote\",\n    list1: \"variable-2\",\n    list2: \"variable-3\",\n    list3: \"keyword\",\n    hr: \"hr\",\n    image: \"image\",\n    imageAltText: \"image-alt-text\",\n    imageMarker: \"image-marker\",\n    formatting: \"formatting\",\n    linkInline: \"link\",\n    linkEmail: \"link\",\n    linkText: \"link\",\n    linkHref: \"string\",\n    em: \"em\",\n    strong: \"strong\",\n    strikethrough: \"strikethrough\",\n    emoji: \"builtin\"\n  };\n\n  for (var tokenType in tokenTypes) {\n    if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {\n      tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];\n    }\n  }\n\n  var hrRE = /^([*\\-_])(?:\\s*\\1){2,}\\s*$/\n  ,   listRE = /^(?:[*\\-+]|^[0-9]+([.)]))\\s+/\n  ,   taskListRE = /^\\[(x| )\\](?=\\s)/i // Must follow listRE\n  ,   atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/\n  ,   setextHeaderRE = /^ *(?:\\={1,}|-{1,})\\s*$/\n  ,   textRE = /^[^#!\\[\\]*_\\\\<>` \"'(~:]+/\n  ,   fencedCodeRE = /^(~~~+|```+)[ \\t]*([\\w+#-]*)[^\\n`]*$/\n  ,   linkDefRE = /^\\s*\\[[^\\]]+?\\]:.*$/ // naive link-definition\n  ,   punctuation = /[!\"#$%&'()*+,\\-.\\/:;<=>?@\\[\\\\\\]^_`{|}~\\xA1\\xA7\\xAB\\xB6\\xB7\\xBB\\xBF\\u037E\\u0387\\u055A-\\u055F\\u0589\\u058A\\u05BE\\u05C0\\u05C3\\u05C6\\u05F3\\u05F4\\u0609\\u060A\\u060C\\u060D\\u061B\\u061E\\u061F\\u066A-\\u066D\\u06D4\\u0700-\\u070D\\u07F7-\\u07F9\\u0830-\\u083E\\u085E\\u0964\\u0965\\u0970\\u0AF0\\u0DF4\\u0E4F\\u0E5A\\u0E5B\\u0F04-\\u0F12\\u0F14\\u0F3A-\\u0F3D\\u0F85\\u0FD0-\\u0FD4\\u0FD9\\u0FDA\\u104A-\\u104F\\u10FB\\u1360-\\u1368\\u1400\\u166D\\u166E\\u169B\\u169C\\u16EB-\\u16ED\\u1735\\u1736\\u17D4-\\u17D6\\u17D8-\\u17DA\\u1800-\\u180A\\u1944\\u1945\\u1A1E\\u1A1F\\u1AA0-\\u1AA6\\u1AA8-\\u1AAD\\u1B5A-\\u1B60\\u1BFC-\\u1BFF\\u1C3B-\\u1C3F\\u1C7E\\u1C7F\\u1CC0-\\u1CC7\\u1CD3\\u2010-\\u2027\\u2030-\\u2043\\u2045-\\u2051\\u2053-\\u205E\\u207D\\u207E\\u208D\\u208E\\u2308-\\u230B\\u2329\\u232A\\u2768-\\u2775\\u27C5\\u27C6\\u27E6-\\u27EF\\u2983-\\u2998\\u29D8-\\u29DB\\u29FC\\u29FD\\u2CF9-\\u2CFC\\u2CFE\\u2CFF\\u2D70\\u2E00-\\u2E2E\\u2E30-\\u2E42\\u3001-\\u3003\\u3008-\\u3011\\u3014-\\u301F\\u3030\\u303D\\u30A0\\u30FB\\uA4FE\\uA4FF\\uA60D-\\uA60F\\uA673\\uA67E\\uA6F2-\\uA6F7\\uA874-\\uA877\\uA8CE\\uA8CF\\uA8F8-\\uA8FA\\uA8FC\\uA92E\\uA92F\\uA95F\\uA9C1-\\uA9CD\\uA9DE\\uA9DF\\uAA5C-\\uAA5F\\uAADE\\uAADF\\uAAF0\\uAAF1\\uABEB\\uFD3E\\uFD3F\\uFE10-\\uFE19\\uFE30-\\uFE52\\uFE54-\\uFE61\\uFE63\\uFE68\\uFE6A\\uFE6B\\uFF01-\\uFF03\\uFF05-\\uFF0A\\uFF0C-\\uFF0F\\uFF1A\\uFF1B\\uFF1F\\uFF20\\uFF3B-\\uFF3D\\uFF3F\\uFF5B\\uFF5D\\uFF5F-\\uFF65]|\\uD800[\\uDD00-\\uDD02\\uDF9F\\uDFD0]|\\uD801\\uDD6F|\\uD802[\\uDC57\\uDD1F\\uDD3F\\uDE50-\\uDE58\\uDE7F\\uDEF0-\\uDEF6\\uDF39-\\uDF3F\\uDF99-\\uDF9C]|\\uD804[\\uDC47-\\uDC4D\\uDCBB\\uDCBC\\uDCBE-\\uDCC1\\uDD40-\\uDD43\\uDD74\\uDD75\\uDDC5-\\uDDC9\\uDDCD\\uDDDB\\uDDDD-\\uDDDF\\uDE38-\\uDE3D\\uDEA9]|\\uD805[\\uDCC6\\uDDC1-\\uDDD7\\uDE41-\\uDE43\\uDF3C-\\uDF3E]|\\uD809[\\uDC70-\\uDC74]|\\uD81A[\\uDE6E\\uDE6F\\uDEF5\\uDF37-\\uDF3B\\uDF44]|\\uD82F\\uDC9F|\\uD836[\\uDE87-\\uDE8B]/\n  ,   expandedTab = \"    \" // CommonMark specifies tab as 4 spaces\n\n  function switchInline(stream, state, f) {\n    state.f = state.inline = f;\n    return f(stream, state);\n  }\n\n  function switchBlock(stream, state, f) {\n    state.f = state.block = f;\n    return f(stream, state);\n  }\n\n  function lineIsEmpty(line) {\n    return !line || !/\\S/.test(line.string)\n  }\n\n  // Blocks\n\n  function blankLine(state) {\n    // Reset linkTitle state\n    state.linkTitle = false;\n    state.linkHref = false;\n    state.linkText = false;\n    // Reset EM state\n    state.em = false;\n    // Reset STRONG state\n    state.strong = false;\n    // Reset strikethrough state\n    state.strikethrough = false;\n    // Reset state.quote\n    state.quote = 0;\n    // Reset state.indentedCode\n    state.indentedCode = false;\n    if (state.f == htmlBlock) {\n      var exit = htmlModeMissing\n      if (!exit) {\n        var inner = CodeMirror.innerMode(htmlMode, state.htmlState)\n        exit = inner.mode.name == \"xml\" && inner.state.tagStart === null &&\n          (!inner.state.context && inner.state.tokenize.isInText)\n      }\n      if (exit) {\n        state.f = inlineNormal;\n        state.block = blockNormal;\n        state.htmlState = null;\n      }\n    }\n    // Reset state.trailingSpace\n    state.trailingSpace = 0;\n    state.trailingSpaceNewLine = false;\n    // Mark this line as blank\n    state.prevLine = state.thisLine\n    state.thisLine = {stream: null}\n    return null;\n  }\n\n  function blockNormal(stream, state) {\n    var firstTokenOnLine = stream.column() === state.indentation;\n    var prevLineLineIsEmpty = lineIsEmpty(state.prevLine.stream);\n    var prevLineIsIndentedCode = state.indentedCode;\n    var prevLineIsHr = state.prevLine.hr;\n    var prevLineIsList = state.list !== false;\n    var maxNonCodeIndentation = (state.listStack[state.listStack.length - 1] || 0) + 3;\n\n    state.indentedCode = false;\n\n    var lineIndentation = state.indentation;\n    // compute once per line (on first token)\n    if (state.indentationDiff === null) {\n      state.indentationDiff = state.indentation;\n      if (prevLineIsList) {\n        state.list = null;\n        // While this list item's marker's indentation is less than the deepest\n        //  list item's content's indentation,pop the deepest list item\n        //  indentation off the stack, and update block indentation state\n        while (lineIndentation < state.listStack[state.listStack.length - 1]) {\n          state.listStack.pop();\n          if (state.listStack.length) {\n            state.indentation = state.listStack[state.listStack.length - 1];\n          // less than the first list's indent -> the line is no longer a list\n          } else {\n            state.list = false;\n          }\n        }\n        if (state.list !== false) {\n          state.indentationDiff = lineIndentation - state.listStack[state.listStack.length - 1]\n        }\n      }\n    }\n\n    // not comprehensive (currently only for setext detection purposes)\n    var allowsInlineContinuation = (\n        !prevLineLineIsEmpty && !prevLineIsHr && !state.prevLine.header &&\n        (!prevLineIsList || !prevLineIsIndentedCode) &&\n        !state.prevLine.fencedCodeEnd\n    );\n\n    var isHr = (state.list === false || prevLineIsHr || prevLineLineIsEmpty) &&\n      state.indentation <= maxNonCodeIndentation && stream.match(hrRE);\n\n    var match = null;\n    if (state.indentationDiff >= 4 && (prevLineIsIndentedCode || state.prevLine.fencedCodeEnd ||\n         state.prevLine.header || prevLineLineIsEmpty)) {\n      stream.skipToEnd();\n      state.indentedCode = true;\n      return tokenTypes.code;\n    } else if (stream.eatSpace()) {\n      return null;\n    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(atxHeaderRE)) && match[1].length <= 6) {\n      state.quote = 0;\n      state.header = match[1].length;\n      state.thisLine.header = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      state.f = state.inline;\n      return getType(state);\n    } else if (state.indentation <= maxNonCodeIndentation && stream.eat('>')) {\n      state.quote = firstTokenOnLine ? 1 : state.quote + 1;\n      if (modeCfg.highlightFormatting) state.formatting = \"quote\";\n      stream.eatSpace();\n      return getType(state);\n    } else if (!isHr && !state.setext && firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(listRE))) {\n      var listType = match[1] ? \"ol\" : \"ul\";\n\n      state.indentation = lineIndentation + stream.current().length;\n      state.list = true;\n      state.quote = 0;\n\n      // Add this list item's content's indentation to the stack\n      state.listStack.push(state.indentation);\n      // Reset inline styles which shouldn't propagate aross list items\n      state.em = false;\n      state.strong = false;\n      state.code = false;\n      state.strikethrough = false;\n\n      if (modeCfg.taskLists && stream.match(taskListRE, false)) {\n        state.taskList = true;\n      }\n      state.f = state.inline;\n      if (modeCfg.highlightFormatting) state.formatting = [\"list\", \"list-\" + listType];\n      return getType(state);\n    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(fencedCodeRE, true))) {\n      state.quote = 0;\n      state.fencedEndRE = new RegExp(match[1] + \"+ *$\");\n      // try switching mode\n      state.localMode = modeCfg.fencedCodeBlockHighlighting && getMode(match[2]);\n      if (state.localMode) state.localState = CodeMirror.startState(state.localMode);\n      state.f = state.block = local;\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\n      state.code = -1\n      return getType(state);\n    // SETEXT has lowest block-scope precedence after HR, so check it after\n    //  the others (code, blockquote, list...)\n    } else if (\n      // if setext set, indicates line after ---/===\n      state.setext || (\n        // line before ---/===\n        (!allowsInlineContinuation || !prevLineIsList) && !state.quote && state.list === false &&\n        !state.code && !isHr && !linkDefRE.test(stream.string) &&\n        (match = stream.lookAhead(1)) && (match = match.match(setextHeaderRE))\n      )\n    ) {\n      if ( !state.setext ) {\n        state.header = match[0].charAt(0) == '=' ? 1 : 2;\n        state.setext = state.header;\n      } else {\n        state.header = state.setext;\n        // has no effect on type so we can reset it now\n        state.setext = 0;\n        stream.skipToEnd();\n        if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      }\n      state.thisLine.header = true;\n      state.f = state.inline;\n      return getType(state);\n    } else if (isHr) {\n      stream.skipToEnd();\n      state.hr = true;\n      state.thisLine.hr = true;\n      return tokenTypes.hr;\n    } else if (stream.peek() === '[') {\n      return switchInline(stream, state, footnoteLink);\n    }\n\n    return switchInline(stream, state, state.inline);\n  }\n\n  function htmlBlock(stream, state) {\n    var style = htmlMode.token(stream, state.htmlState);\n    if (!htmlModeMissing) {\n      var inner = CodeMirror.innerMode(htmlMode, state.htmlState)\n      if ((inner.mode.name == \"xml\" && inner.state.tagStart === null &&\n           (!inner.state.context && inner.state.tokenize.isInText)) ||\n          (state.md_inside && stream.current().indexOf(\">\") > -1)) {\n        state.f = inlineNormal;\n        state.block = blockNormal;\n        state.htmlState = null;\n      }\n    }\n    return style;\n  }\n\n  function local(stream, state) {\n    var currListInd = state.listStack[state.listStack.length - 1] || 0;\n    var hasExitedList = state.indentation < currListInd;\n    var maxFencedEndInd = currListInd + 3;\n    if (state.fencedEndRE && state.indentation <= maxFencedEndInd && (hasExitedList || stream.match(state.fencedEndRE))) {\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\n      var returnType;\n      if (!hasExitedList) returnType = getType(state)\n      state.localMode = state.localState = null;\n      state.block = blockNormal;\n      state.f = inlineNormal;\n      state.fencedEndRE = null;\n      state.code = 0\n      state.thisLine.fencedCodeEnd = true;\n      if (hasExitedList) return switchBlock(stream, state, state.block);\n      return returnType;\n    } else if (state.localMode) {\n      return state.localMode.token(stream, state.localState);\n    } else {\n      stream.skipToEnd();\n      return tokenTypes.code;\n    }\n  }\n\n  // Inline\n  function getType(state) {\n    var styles = [];\n\n    if (state.formatting) {\n      styles.push(tokenTypes.formatting);\n\n      if (typeof state.formatting === \"string\") state.formatting = [state.formatting];\n\n      for (var i = 0; i < state.formatting.length; i++) {\n        styles.push(tokenTypes.formatting + \"-\" + state.formatting[i]);\n\n        if (state.formatting[i] === \"header\") {\n          styles.push(tokenTypes.formatting + \"-\" + state.formatting[i] + \"-\" + state.header);\n        }\n\n        // Add `formatting-quote` and `formatting-quote-#` for blockquotes\n        // Add `error` instead if the maximum blockquote nesting depth is passed\n        if (state.formatting[i] === \"quote\") {\n          if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\n            styles.push(tokenTypes.formatting + \"-\" + state.formatting[i] + \"-\" + state.quote);\n          } else {\n            styles.push(\"error\");\n          }\n        }\n      }\n    }\n\n    if (state.taskOpen) {\n      styles.push(\"meta\");\n      return styles.length ? styles.join(' ') : null;\n    }\n    if (state.taskClosed) {\n      styles.push(\"property\");\n      return styles.length ? styles.join(' ') : null;\n    }\n\n    if (state.linkHref) {\n      styles.push(tokenTypes.linkHref, \"url\");\n    } else { // Only apply inline styles to non-url text\n      if (state.strong) { styles.push(tokenTypes.strong); }\n      if (state.em) { styles.push(tokenTypes.em); }\n      if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }\n      if (state.emoji) { styles.push(tokenTypes.emoji); }\n      if (state.linkText) { styles.push(tokenTypes.linkText); }\n      if (state.code) { styles.push(tokenTypes.code); }\n      if (state.image) { styles.push(tokenTypes.image); }\n      if (state.imageAltText) { styles.push(tokenTypes.imageAltText, \"link\"); }\n      if (state.imageMarker) { styles.push(tokenTypes.imageMarker); }\n    }\n\n    if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + \"-\" + state.header); }\n\n    if (state.quote) {\n      styles.push(tokenTypes.quote);\n\n      // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth\n      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\n        styles.push(tokenTypes.quote + \"-\" + state.quote);\n      } else {\n        styles.push(tokenTypes.quote + \"-\" + modeCfg.maxBlockquoteDepth);\n      }\n    }\n\n    if (state.list !== false) {\n      var listMod = (state.listStack.length - 1) % 3;\n      if (!listMod) {\n        styles.push(tokenTypes.list1);\n      } else if (listMod === 1) {\n        styles.push(tokenTypes.list2);\n      } else {\n        styles.push(tokenTypes.list3);\n      }\n    }\n\n    if (state.trailingSpaceNewLine) {\n      styles.push(\"trailing-space-new-line\");\n    } else if (state.trailingSpace) {\n      styles.push(\"trailing-space-\" + (state.trailingSpace % 2 ? \"a\" : \"b\"));\n    }\n\n    return styles.length ? styles.join(' ') : null;\n  }\n\n  function handleText(stream, state) {\n    if (stream.match(textRE, true)) {\n      return getType(state);\n    }\n    return undefined;\n  }\n\n  function inlineNormal(stream, state) {\n    var style = state.text(stream, state);\n    if (typeof style !== 'undefined')\n      return style;\n\n    if (state.list) { // List marker (*, +, -, 1., etc)\n      state.list = null;\n      return getType(state);\n    }\n\n    if (state.taskList) {\n      var taskOpen = stream.match(taskListRE, true)[1] === \" \";\n      if (taskOpen) state.taskOpen = true;\n      else state.taskClosed = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"task\";\n      state.taskList = false;\n      return getType(state);\n    }\n\n    state.taskOpen = false;\n    state.taskClosed = false;\n\n    if (state.header && stream.match(/^#+$/, true)) {\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      return getType(state);\n    }\n\n    var ch = stream.next();\n\n    // Matches link titles present on next line\n    if (state.linkTitle) {\n      state.linkTitle = false;\n      var matchCh = ch;\n      if (ch === '(') {\n        matchCh = ')';\n      }\n      matchCh = (matchCh+'').replace(/([.?*+^\\[\\]\\\\(){}|-])/g, \"\\\\$1\");\n      var regex = '^\\\\s*(?:[^' + matchCh + '\\\\\\\\]+|\\\\\\\\\\\\\\\\|\\\\\\\\.)' + matchCh;\n      if (stream.match(new RegExp(regex), true)) {\n        return tokenTypes.linkHref;\n      }\n    }\n\n    // If this block is changed, it may need to be updated in GFM mode\n    if (ch === '`') {\n      var previousFormatting = state.formatting;\n      if (modeCfg.highlightFormatting) state.formatting = \"code\";\n      stream.eatWhile('`');\n      var count = stream.current().length\n      if (state.code == 0 && (!state.quote || count == 1)) {\n        state.code = count\n        return getType(state)\n      } else if (count == state.code) { // Must be exact\n        var t = getType(state)\n        state.code = 0\n        return t\n      } else {\n        state.formatting = previousFormatting\n        return getType(state)\n      }\n    } else if (state.code) {\n      return getType(state);\n    }\n\n    if (ch === '\\\\') {\n      stream.next();\n      if (modeCfg.highlightFormatting) {\n        var type = getType(state);\n        var formattingEscape = tokenTypes.formatting + \"-escape\";\n        return type ? type + \" \" + formattingEscape : formattingEscape;\n      }\n    }\n\n    if (ch === '!' && stream.match(/\\[[^\\]]*\\] ?(?:\\(|\\[)/, false)) {\n      state.imageMarker = true;\n      state.image = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      return getType(state);\n    }\n\n    if (ch === '[' && state.imageMarker && stream.match(/[^\\]]*\\](\\(.*?\\)| ?\\[.*?\\])/, false)) {\n      state.imageMarker = false;\n      state.imageAltText = true\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      return getType(state);\n    }\n\n    if (ch === ']' && state.imageAltText) {\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      var type = getType(state);\n      state.imageAltText = false;\n      state.image = false;\n      state.inline = state.f = linkHref;\n      return type;\n    }\n\n    if (ch === '[' && !state.image) {\n      if (state.linkText && stream.match(/^.*?\\]/)) return getType(state)\n      state.linkText = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      return getType(state);\n    }\n\n    if (ch === ']' && state.linkText) {\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      state.linkText = false;\n      state.inline = state.f = stream.match(/\\(.*?\\)| ?\\[.*?\\]/, false) ? linkHref : inlineNormal\n      return type;\n    }\n\n    if (ch === '<' && stream.match(/^(https?|ftps?):\\/\\/(?:[^\\\\>]|\\\\.)+>/, false)) {\n      state.f = state.inline = linkInline;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkInline;\n    }\n\n    if (ch === '<' && stream.match(/^[^> \\\\]+@(?:[^\\\\>]|\\\\.)+>/, false)) {\n      state.f = state.inline = linkInline;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkEmail;\n    }\n\n    if (modeCfg.xml && ch === '<' && stream.match(/^(!--|\\?|!\\[CDATA\\[|[a-z][a-z0-9-]*(?:\\s+[a-z_:.\\-]+(?:\\s*=\\s*[^>]+)?)*\\s*(?:>|$))/i, false)) {\n      var end = stream.string.indexOf(\">\", stream.pos);\n      if (end != -1) {\n        var atts = stream.string.substring(stream.start, end);\n        if (/markdown\\s*=\\s*('|\"){0,1}1('|\"){0,1}/.test(atts)) state.md_inside = true;\n      }\n      stream.backUp(1);\n      state.htmlState = CodeMirror.startState(htmlMode);\n      return switchBlock(stream, state, htmlBlock);\n    }\n\n    if (modeCfg.xml && ch === '<' && stream.match(/^\\/\\w*?>/)) {\n      state.md_inside = false;\n      return \"tag\";\n    } else if (ch === \"*\" || ch === \"_\") {\n      var len = 1, before = stream.pos == 1 ? \" \" : stream.string.charAt(stream.pos - 2)\n      while (len < 3 && stream.eat(ch)) len++\n      var after = stream.peek() || \" \"\n      // See http://spec.commonmark.org/0.27/#emphasis-and-strong-emphasis\n      var leftFlanking = !/\\s/.test(after) && (!punctuation.test(after) || /\\s/.test(before) || punctuation.test(before))\n      var rightFlanking = !/\\s/.test(before) && (!punctuation.test(before) || /\\s/.test(after) || punctuation.test(after))\n      var setEm = null, setStrong = null\n      if (len % 2) { // Em\n        if (!state.em && leftFlanking && (ch === \"*\" || !rightFlanking || punctuation.test(before)))\n          setEm = true\n        else if (state.em == ch && rightFlanking && (ch === \"*\" || !leftFlanking || punctuation.test(after)))\n          setEm = false\n      }\n      if (len > 1) { // Strong\n        if (!state.strong && leftFlanking && (ch === \"*\" || !rightFlanking || punctuation.test(before)))\n          setStrong = true\n        else if (state.strong == ch && rightFlanking && (ch === \"*\" || !leftFlanking || punctuation.test(after)))\n          setStrong = false\n      }\n      if (setStrong != null || setEm != null) {\n        if (modeCfg.highlightFormatting) state.formatting = setEm == null ? \"strong\" : setStrong == null ? \"em\" : \"strong em\"\n        if (setEm === true) state.em = ch\n        if (setStrong === true) state.strong = ch\n        var t = getType(state)\n        if (setEm === false) state.em = false\n        if (setStrong === false) state.strong = false\n        return t\n      }\n    } else if (ch === ' ') {\n      if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces\n        if (stream.peek() === ' ') { // Surrounded by spaces, ignore\n          return getType(state);\n        } else { // Not surrounded by spaces, back up pointer\n          stream.backUp(1);\n        }\n      }\n    }\n\n    if (modeCfg.strikethrough) {\n      if (ch === '~' && stream.eatWhile(ch)) {\n        if (state.strikethrough) {// Remove strikethrough\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\n          var t = getType(state);\n          state.strikethrough = false;\n          return t;\n        } else if (stream.match(/^[^\\s]/, false)) {// Add strikethrough\n          state.strikethrough = true;\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\n          return getType(state);\n        }\n      } else if (ch === ' ') {\n        if (stream.match(/^~~/, true)) { // Probably surrounded by space\n          if (stream.peek() === ' ') { // Surrounded by spaces, ignore\n            return getType(state);\n          } else { // Not surrounded by spaces, back up pointer\n            stream.backUp(2);\n          }\n        }\n      }\n    }\n\n    if (modeCfg.emoji && ch === \":\" && stream.match(/^(?:[a-z_\\d+][a-z_\\d+-]*|\\-[a-z_\\d+][a-z_\\d+-]*):/)) {\n      state.emoji = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"emoji\";\n      var retType = getType(state);\n      state.emoji = false;\n      return retType;\n    }\n\n    if (ch === ' ') {\n      if (stream.match(/^ +$/, false)) {\n        state.trailingSpace++;\n      } else if (state.trailingSpace) {\n        state.trailingSpaceNewLine = true;\n      }\n    }\n\n    return getType(state);\n  }\n\n  function linkInline(stream, state) {\n    var ch = stream.next();\n\n    if (ch === \">\") {\n      state.f = state.inline = inlineNormal;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkInline;\n    }\n\n    stream.match(/^[^>]+/, true);\n\n    return tokenTypes.linkInline;\n  }\n\n  function linkHref(stream, state) {\n    // Check if space, and return NULL if so (to avoid marking the space)\n    if(stream.eatSpace()){\n      return null;\n    }\n    var ch = stream.next();\n    if (ch === '(' || ch === '[') {\n      state.f = state.inline = getLinkHrefInside(ch === \"(\" ? \")\" : \"]\");\n      if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\n      state.linkHref = true;\n      return getType(state);\n    }\n    return 'error';\n  }\n\n  var linkRE = {\n    \")\": /^(?:[^\\\\\\(\\)]|\\\\.|\\((?:[^\\\\\\(\\)]|\\\\.)*\\))*?(?=\\))/,\n    \"]\": /^(?:[^\\\\\\[\\]]|\\\\.|\\[(?:[^\\\\\\[\\]]|\\\\.)*\\])*?(?=\\])/\n  }\n\n  function getLinkHrefInside(endChar) {\n    return function(stream, state) {\n      var ch = stream.next();\n\n      if (ch === endChar) {\n        state.f = state.inline = inlineNormal;\n        if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\n        var returnState = getType(state);\n        state.linkHref = false;\n        return returnState;\n      }\n\n      stream.match(linkRE[endChar])\n      state.linkHref = true;\n      return getType(state);\n    };\n  }\n\n  function footnoteLink(stream, state) {\n    if (stream.match(/^([^\\]\\\\]|\\\\.)*\\]:/, false)) {\n      state.f = footnoteLinkInside;\n      stream.next(); // Consume [\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      state.linkText = true;\n      return getType(state);\n    }\n    return switchInline(stream, state, inlineNormal);\n  }\n\n  function footnoteLinkInside(stream, state) {\n    if (stream.match(/^\\]:/, true)) {\n      state.f = state.inline = footnoteUrl;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var returnType = getType(state);\n      state.linkText = false;\n      return returnType;\n    }\n\n    stream.match(/^([^\\]\\\\]|\\\\.)+/, true);\n\n    return tokenTypes.linkText;\n  }\n\n  function footnoteUrl(stream, state) {\n    // Check if space, and return NULL if so (to avoid marking the space)\n    if(stream.eatSpace()){\n      return null;\n    }\n    // Match URL\n    stream.match(/^[^\\s]+/, true);\n    // Check for link title\n    if (stream.peek() === undefined) { // End of line, set flag to check next line\n      state.linkTitle = true;\n    } else { // More content on line, check if link title\n      stream.match(/^(?:\\s+(?:\"(?:[^\"\\\\]|\\\\\\\\|\\\\.)+\"|'(?:[^'\\\\]|\\\\\\\\|\\\\.)+'|\\((?:[^)\\\\]|\\\\\\\\|\\\\.)+\\)))?/, true);\n    }\n    state.f = state.inline = inlineNormal;\n    return tokenTypes.linkHref + \" url\";\n  }\n\n  var mode = {\n    startState: function() {\n      return {\n        f: blockNormal,\n\n        prevLine: {stream: null},\n        thisLine: {stream: null},\n\n        block: blockNormal,\n        htmlState: null,\n        indentation: 0,\n\n        inline: inlineNormal,\n        text: handleText,\n\n        formatting: false,\n        linkText: false,\n        linkHref: false,\n        linkTitle: false,\n        code: 0,\n        em: false,\n        strong: false,\n        header: 0,\n        setext: 0,\n        hr: false,\n        taskList: false,\n        list: false,\n        listStack: [],\n        quote: 0,\n        trailingSpace: 0,\n        trailingSpaceNewLine: false,\n        strikethrough: false,\n        emoji: false,\n        fencedEndRE: null\n      };\n    },\n\n    copyState: function(s) {\n      return {\n        f: s.f,\n\n        prevLine: s.prevLine,\n        thisLine: s.thisLine,\n\n        block: s.block,\n        htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),\n        indentation: s.indentation,\n\n        localMode: s.localMode,\n        localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,\n\n        inline: s.inline,\n        text: s.text,\n        formatting: false,\n        linkText: s.linkText,\n        linkTitle: s.linkTitle,\n        linkHref: s.linkHref,\n        code: s.code,\n        em: s.em,\n        strong: s.strong,\n        strikethrough: s.strikethrough,\n        emoji: s.emoji,\n        header: s.header,\n        setext: s.setext,\n        hr: s.hr,\n        taskList: s.taskList,\n        list: s.list,\n        listStack: s.listStack.slice(0),\n        quote: s.quote,\n        indentedCode: s.indentedCode,\n        trailingSpace: s.trailingSpace,\n        trailingSpaceNewLine: s.trailingSpaceNewLine,\n        md_inside: s.md_inside,\n        fencedEndRE: s.fencedEndRE\n      };\n    },\n\n    token: function(stream, state) {\n\n      // Reset state.formatting\n      state.formatting = false;\n\n      if (stream != state.thisLine.stream) {\n        state.header = 0;\n        state.hr = false;\n\n        if (stream.match(/^\\s*$/, true)) {\n          blankLine(state);\n          return null;\n        }\n\n        state.prevLine = state.thisLine\n        state.thisLine = {stream: stream}\n\n        // Reset state.taskList\n        state.taskList = false;\n\n        // Reset state.trailingSpace\n        state.trailingSpace = 0;\n        state.trailingSpaceNewLine = false;\n\n        if (!state.localState) {\n          state.f = state.block;\n          if (state.f != htmlBlock) {\n            var indentation = stream.match(/^\\s*/, true)[0].replace(/\\t/g, expandedTab).length;\n            state.indentation = indentation;\n            state.indentationDiff = null;\n            if (indentation > 0) return null;\n          }\n        }\n      }\n      return state.f(stream, state);\n    },\n\n    innerMode: function(state) {\n      if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};\n      if (state.localState) return {state: state.localState, mode: state.localMode};\n      return {state: state, mode: mode};\n    },\n\n    indent: function(state, textAfter, line) {\n      if (state.block == htmlBlock && htmlMode.indent) return htmlMode.indent(state.htmlState, textAfter, line)\n      if (state.localState && state.localMode.indent) return state.localMode.indent(state.localState, textAfter, line)\n      return CodeMirror.Pass\n    },\n\n    blankLine: blankLine,\n\n    getType: getType,\n\n    blockCommentStart: \"<!--\",\n    blockCommentEnd: \"-->\",\n    closeBrackets: \"()[]{}''\\\"\\\"``\",\n    fold: \"markdown\"\n  };\n  return mode;\n}, \"xml\");\n\nCodeMirror.defineMIME(\"text/markdown\", \"markdown\");\n\nCodeMirror.defineMIME(\"text/x-markdown\", \"markdown\");\n\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n\n  CodeMirror.modeInfo = [\n    {name: \"APL\", mime: \"text/apl\", mode: \"apl\", ext: [\"dyalog\", \"apl\"]},\n    {name: \"PGP\", mimes: [\"application/pgp\", \"application/pgp-encrypted\", \"application/pgp-keys\", \"application/pgp-signature\"], mode: \"asciiarmor\", ext: [\"asc\", \"pgp\", \"sig\"]},\n    {name: \"ASN.1\", mime: \"text/x-ttcn-asn\", mode: \"asn.1\", ext: [\"asn\", \"asn1\"]},\n    {name: \"Asterisk\", mime: \"text/x-asterisk\", mode: \"asterisk\", file: /^extensions\\.conf$/i},\n    {name: \"Brainfuck\", mime: \"text/x-brainfuck\", mode: \"brainfuck\", ext: [\"b\", \"bf\"]},\n    {name: \"C\", mime: \"text/x-csrc\", mode: \"clike\", ext: [\"c\", \"h\", \"ino\"]},\n    {name: \"C++\", mime: \"text/x-c++src\", mode: \"clike\", ext: [\"cpp\", \"c++\", \"cc\", \"cxx\", \"hpp\", \"h++\", \"hh\", \"hxx\"], alias: [\"cpp\"]},\n    {name: \"Cobol\", mime: \"text/x-cobol\", mode: \"cobol\", ext: [\"cob\", \"cpy\"]},\n    {name: \"C#\", mime: \"text/x-csharp\", mode: \"clike\", ext: [\"cs\"], alias: [\"csharp\", \"cs\"]},\n    {name: \"Clojure\", mime: \"text/x-clojure\", mode: \"clojure\", ext: [\"clj\", \"cljc\", \"cljx\"]},\n    {name: \"ClojureScript\", mime: \"text/x-clojurescript\", mode: \"clojure\", ext: [\"cljs\"]},\n    {name: \"Closure Stylesheets (GSS)\", mime: \"text/x-gss\", mode: \"css\", ext: [\"gss\"]},\n    {name: \"CMake\", mime: \"text/x-cmake\", mode: \"cmake\", ext: [\"cmake\", \"cmake.in\"], file: /^CMakeLists.txt$/},\n    {name: \"CoffeeScript\", mimes: [\"application/vnd.coffeescript\", \"text/coffeescript\", \"text/x-coffeescript\"], mode: \"coffeescript\", ext: [\"coffee\"], alias: [\"coffee\", \"coffee-script\"]},\n    {name: \"Common Lisp\", mime: \"text/x-common-lisp\", mode: \"commonlisp\", ext: [\"cl\", \"lisp\", \"el\"], alias: [\"lisp\"]},\n    {name: \"Cypher\", mime: \"application/x-cypher-query\", mode: \"cypher\", ext: [\"cyp\", \"cypher\"]},\n    {name: \"Cython\", mime: \"text/x-cython\", mode: \"python\", ext: [\"pyx\", \"pxd\", \"pxi\"]},\n    {name: \"Crystal\", mime: \"text/x-crystal\", mode: \"crystal\", ext: [\"cr\"]},\n    {name: \"CSS\", mime: \"text/css\", mode: \"css\", ext: [\"css\"]},\n    {name: \"CQL\", mime: \"text/x-cassandra\", mode: \"sql\", ext: [\"cql\"]},\n    {name: \"D\", mime: \"text/x-d\", mode: \"d\", ext: [\"d\"]},\n    {name: \"Dart\", mimes: [\"application/dart\", \"text/x-dart\"], mode: \"dart\", ext: [\"dart\"]},\n    {name: \"diff\", mime: \"text/x-diff\", mode: \"diff\", ext: [\"diff\", \"patch\"]},\n    {name: \"Django\", mime: \"text/x-django\", mode: \"django\"},\n    {name: \"Dockerfile\", mime: \"text/x-dockerfile\", mode: \"dockerfile\", file: /^Dockerfile$/},\n    {name: \"DTD\", mime: \"application/xml-dtd\", mode: \"dtd\", ext: [\"dtd\"]},\n    {name: \"Dylan\", mime: \"text/x-dylan\", mode: \"dylan\", ext: [\"dylan\", \"dyl\", \"intr\"]},\n    {name: \"EBNF\", mime: \"text/x-ebnf\", mode: \"ebnf\"},\n    {name: \"ECL\", mime: \"text/x-ecl\", mode: \"ecl\", ext: [\"ecl\"]},\n    {name: \"edn\", mime: \"application/edn\", mode: \"clojure\", ext: [\"edn\"]},\n    {name: \"Eiffel\", mime: \"text/x-eiffel\", mode: \"eiffel\", ext: [\"e\"]},\n    {name: \"Elm\", mime: \"text/x-elm\", mode: \"elm\", ext: [\"elm\"]},\n    {name: \"Embedded Javascript\", mime: \"application/x-ejs\", mode: \"htmlembedded\", ext: [\"ejs\"]},\n    {name: \"Embedded Ruby\", mime: \"application/x-erb\", mode: \"htmlembedded\", ext: [\"erb\"]},\n    {name: \"Erlang\", mime: \"text/x-erlang\", mode: \"erlang\", ext: [\"erl\"]},\n    {name: \"Esper\", mime: \"text/x-esper\", mode: \"sql\"},\n    {name: \"Factor\", mime: \"text/x-factor\", mode: \"factor\", ext: [\"factor\"]},\n    {name: \"FCL\", mime: \"text/x-fcl\", mode: \"fcl\"},\n    {name: \"Forth\", mime: \"text/x-forth\", mode: \"forth\", ext: [\"forth\", \"fth\", \"4th\"]},\n    {name: \"Fortran\", mime: \"text/x-fortran\", mode: \"fortran\", ext: [\"f\", \"for\", \"f77\", \"f90\", \"f95\"]},\n    {name: \"F#\", mime: \"text/x-fsharp\", mode: \"mllike\", ext: [\"fs\"], alias: [\"fsharp\"]},\n    {name: \"Gas\", mime: \"text/x-gas\", mode: \"gas\", ext: [\"s\"]},\n    {name: \"Gherkin\", mime: \"text/x-feature\", mode: \"gherkin\", ext: [\"feature\"]},\n    {name: \"GitHub Flavored Markdown\", mime: \"text/x-gfm\", mode: \"gfm\", file: /^(readme|contributing|history).md$/i},\n    {name: \"Go\", mime: \"text/x-go\", mode: \"go\", ext: [\"go\"]},\n    {name: \"Groovy\", mime: \"text/x-groovy\", mode: \"groovy\", ext: [\"groovy\", \"gradle\"], file: /^Jenkinsfile$/},\n    {name: \"HAML\", mime: \"text/x-haml\", mode: \"haml\", ext: [\"haml\"]},\n    {name: \"Haskell\", mime: \"text/x-haskell\", mode: \"haskell\", ext: [\"hs\"]},\n    {name: \"Haskell (Literate)\", mime: \"text/x-literate-haskell\", mode: \"haskell-literate\", ext: [\"lhs\"]},\n    {name: \"Haxe\", mime: \"text/x-haxe\", mode: \"haxe\", ext: [\"hx\"]},\n    {name: \"HXML\", mime: \"text/x-hxml\", mode: \"haxe\", ext: [\"hxml\"]},\n    {name: \"ASP.NET\", mime: \"application/x-aspx\", mode: \"htmlembedded\", ext: [\"aspx\"], alias: [\"asp\", \"aspx\"]},\n    {name: \"HTML\", mime: \"text/html\", mode: \"htmlmixed\", ext: [\"html\", \"htm\", \"handlebars\", \"hbs\"], alias: [\"xhtml\"]},\n    {name: \"HTTP\", mime: \"message/http\", mode: \"http\"},\n    {name: \"IDL\", mime: \"text/x-idl\", mode: \"idl\", ext: [\"pro\"]},\n    {name: \"Pug\", mime: \"text/x-pug\", mode: \"pug\", ext: [\"jade\", \"pug\"], alias: [\"jade\"]},\n    {name: \"Java\", mime: \"text/x-java\", mode: \"clike\", ext: [\"java\"]},\n    {name: \"Java Server Pages\", mime: \"application/x-jsp\", mode: \"htmlembedded\", ext: [\"jsp\"], alias: [\"jsp\"]},\n    {name: \"JavaScript\", mimes: [\"text/javascript\", \"text/ecmascript\", \"application/javascript\", \"application/x-javascript\", \"application/ecmascript\"],\n     mode: \"javascript\", ext: [\"js\"], alias: [\"ecmascript\", \"js\", \"node\"]},\n    {name: \"JSON\", mimes: [\"application/json\", \"application/x-json\"], mode: \"javascript\", ext: [\"json\", \"map\"], alias: [\"json5\"]},\n    {name: \"JSON-LD\", mime: \"application/ld+json\", mode: \"javascript\", ext: [\"jsonld\"], alias: [\"jsonld\"]},\n    {name: \"JSX\", mime: \"text/jsx\", mode: \"jsx\", ext: [\"jsx\"]},\n    {name: \"Jinja2\", mime: \"text/jinja2\", mode: \"jinja2\", ext: [\"j2\", \"jinja\", \"jinja2\"]},\n    {name: \"Julia\", mime: \"text/x-julia\", mode: \"julia\", ext: [\"jl\"]},\n    {name: \"Kotlin\", mime: \"text/x-kotlin\", mode: \"clike\", ext: [\"kt\"]},\n    {name: \"LESS\", mime: \"text/x-less\", mode: \"css\", ext: [\"less\"]},\n    {name: \"LiveScript\", mime: \"text/x-livescript\", mode: \"livescript\", ext: [\"ls\"], alias: [\"ls\"]},\n    {name: \"Lua\", mime: \"text/x-lua\", mode: \"lua\", ext: [\"lua\"]},\n    {name: \"Markdown\", mime: \"text/x-markdown\", mode: \"markdown\", ext: [\"markdown\", \"md\", \"mkd\"]},\n    {name: \"mIRC\", mime: \"text/mirc\", mode: \"mirc\"},\n    {name: \"MariaDB SQL\", mime: \"text/x-mariadb\", mode: \"sql\"},\n    {name: \"Mathematica\", mime: \"text/x-mathematica\", mode: \"mathematica\", ext: [\"m\", \"nb\", \"wl\", \"wls\"]},\n    {name: \"Modelica\", mime: \"text/x-modelica\", mode: \"modelica\", ext: [\"mo\"]},\n    {name: \"MUMPS\", mime: \"text/x-mumps\", mode: \"mumps\", ext: [\"mps\"]},\n    {name: \"MS SQL\", mime: \"text/x-mssql\", mode: \"sql\"},\n    {name: \"mbox\", mime: \"application/mbox\", mode: \"mbox\", ext: [\"mbox\"]},\n    {name: \"MySQL\", mime: \"text/x-mysql\", mode: \"sql\"},\n    {name: \"Nginx\", mime: \"text/x-nginx-conf\", mode: \"nginx\", file: /nginx.*\\.conf$/i},\n    {name: \"NSIS\", mime: \"text/x-nsis\", mode: \"nsis\", ext: [\"nsh\", \"nsi\"]},\n    {name: \"NTriples\", mimes: [\"application/n-triples\", \"application/n-quads\", \"text/n-triples\"],\n     mode: \"ntriples\", ext: [\"nt\", \"nq\"]},\n    {name: \"Objective-C\", mime: \"text/x-objectivec\", mode: \"clike\", ext: [\"m\"], alias: [\"objective-c\", \"objc\"]},\n    {name: \"Objective-C++\", mime: \"text/x-objectivec++\", mode: \"clike\", ext: [\"mm\"], alias: [\"objective-c++\", \"objc++\"]},\n    {name: \"OCaml\", mime: \"text/x-ocaml\", mode: \"mllike\", ext: [\"ml\", \"mli\", \"mll\", \"mly\"]},\n    {name: \"Octave\", mime: \"text/x-octave\", mode: \"octave\", ext: [\"m\"]},\n    {name: \"Oz\", mime: \"text/x-oz\", mode: \"oz\", ext: [\"oz\"]},\n    {name: \"Pascal\", mime: \"text/x-pascal\", mode: \"pascal\", ext: [\"p\", \"pas\"]},\n    {name: \"PEG.js\", mime: \"null\", mode: \"pegjs\", ext: [\"jsonld\"]},\n    {name: \"Perl\", mime: \"text/x-perl\", mode: \"perl\", ext: [\"pl\", \"pm\"]},\n    {name: \"PHP\", mimes: [\"text/x-php\", \"application/x-httpd-php\", \"application/x-httpd-php-open\"], mode: \"php\", ext: [\"php\", \"php3\", \"php4\", \"php5\", \"php7\", \"phtml\"]},\n    {name: \"Pig\", mime: \"text/x-pig\", mode: \"pig\", ext: [\"pig\"]},\n    {name: \"Plain Text\", mime: \"text/plain\", mode: \"null\", ext: [\"txt\", \"text\", \"conf\", \"def\", \"list\", \"log\"]},\n    {name: \"PLSQL\", mime: \"text/x-plsql\", mode: \"sql\", ext: [\"pls\"]},\n    {name: \"PostgreSQL\", mime: \"text/x-pgsql\", mode: \"sql\"},\n    {name: \"PowerShell\", mime: \"application/x-powershell\", mode: \"powershell\", ext: [\"ps1\", \"psd1\", \"psm1\"]},\n    {name: \"Properties files\", mime: \"text/x-properties\", mode: \"properties\", ext: [\"properties\", \"ini\", \"in\"], alias: [\"ini\", \"properties\"]},\n    {name: \"ProtoBuf\", mime: \"text/x-protobuf\", mode: \"protobuf\", ext: [\"proto\"]},\n    {name: \"Python\", mime: \"text/x-python\", mode: \"python\", ext: [\"BUILD\", \"bzl\", \"py\", \"pyw\"], file: /^(BUCK|BUILD)$/},\n    {name: \"Puppet\", mime: \"text/x-puppet\", mode: \"puppet\", ext: [\"pp\"]},\n    {name: \"Q\", mime: \"text/x-q\", mode: \"q\", ext: [\"q\"]},\n    {name: \"R\", mime: \"text/x-rsrc\", mode: \"r\", ext: [\"r\", \"R\"], alias: [\"rscript\"]},\n    {name: \"reStructuredText\", mime: \"text/x-rst\", mode: \"rst\", ext: [\"rst\"], alias: [\"rst\"]},\n    {name: \"RPM Changes\", mime: \"text/x-rpm-changes\", mode: \"rpm\"},\n    {name: \"RPM Spec\", mime: \"text/x-rpm-spec\", mode: \"rpm\", ext: [\"spec\"]},\n    {name: \"Ruby\", mime: \"text/x-ruby\", mode: \"ruby\", ext: [\"rb\"], alias: [\"jruby\", \"macruby\", \"rake\", \"rb\", \"rbx\"]},\n    {name: \"Rust\", mime: \"text/x-rustsrc\", mode: \"rust\", ext: [\"rs\"]},\n    {name: \"SAS\", mime: \"text/x-sas\", mode: \"sas\", ext: [\"sas\"]},\n    {name: \"Sass\", mime: \"text/x-sass\", mode: \"sass\", ext: [\"sass\"]},\n    {name: \"Scala\", mime: \"text/x-scala\", mode: \"clike\", ext: [\"scala\"]},\n    {name: \"Scheme\", mime: \"text/x-scheme\", mode: \"scheme\", ext: [\"scm\", \"ss\"]},\n    {name: \"SCSS\", mime: \"text/x-scss\", mode: \"css\", ext: [\"scss\"]},\n    {name: \"Shell\", mimes: [\"text/x-sh\", \"application/x-sh\"], mode: \"shell\", ext: [\"sh\", \"ksh\", \"bash\"], alias: [\"bash\", \"sh\", \"zsh\"], file: /^PKGBUILD$/},\n    {name: \"Sieve\", mime: \"application/sieve\", mode: \"sieve\", ext: [\"siv\", \"sieve\"]},\n    {name: \"Slim\", mimes: [\"text/x-slim\", \"application/x-slim\"], mode: \"slim\", ext: [\"slim\"]},\n    {name: \"Smalltalk\", mime: \"text/x-stsrc\", mode: \"smalltalk\", ext: [\"st\"]},\n    {name: \"Smarty\", mime: \"text/x-smarty\", mode: \"smarty\", ext: [\"tpl\"]},\n    {name: \"Solr\", mime: \"text/x-solr\", mode: \"solr\"},\n    {name: \"SML\", mime: \"text/x-sml\", mode: \"mllike\", ext: [\"sml\", \"sig\", \"fun\", \"smackspec\"]},\n    {name: \"Soy\", mime: \"text/x-soy\", mode: \"soy\", ext: [\"soy\"], alias: [\"closure template\"]},\n    {name: \"SPARQL\", mime: \"application/sparql-query\", mode: \"sparql\", ext: [\"rq\", \"sparql\"], alias: [\"sparul\"]},\n    {name: \"Spreadsheet\", mime: \"text/x-spreadsheet\", mode: \"spreadsheet\", alias: [\"excel\", \"formula\"]},\n    {name: \"SQL\", mime: \"text/x-sql\", mode: \"sql\", ext: [\"sql\"]},\n    {name: \"SQLite\", mime: \"text/x-sqlite\", mode: \"sql\"},\n    {name: \"Squirrel\", mime: \"text/x-squirrel\", mode: \"clike\", ext: [\"nut\"]},\n    {name: \"Stylus\", mime: \"text/x-styl\", mode: \"stylus\", ext: [\"styl\"]},\n    {name: \"Swift\", mime: \"text/x-swift\", mode: \"swift\", ext: [\"swift\"]},\n    {name: \"sTeX\", mime: \"text/x-stex\", mode: \"stex\"},\n    {name: \"LaTeX\", mime: \"text/x-latex\", mode: \"stex\", ext: [\"text\", \"ltx\", \"tex\"], alias: [\"tex\"]},\n    {name: \"SystemVerilog\", mime: \"text/x-systemverilog\", mode: \"verilog\", ext: [\"v\", \"sv\", \"svh\"]},\n    {name: \"Tcl\", mime: \"text/x-tcl\", mode: \"tcl\", ext: [\"tcl\"]},\n    {name: \"Textile\", mime: \"text/x-textile\", mode: \"textile\", ext: [\"textile\"]},\n    {name: \"TiddlyWiki \", mime: \"text/x-tiddlywiki\", mode: \"tiddlywiki\"},\n    {name: \"Tiki wiki\", mime: \"text/tiki\", mode: \"tiki\"},\n    {name: \"TOML\", mime: \"text/x-toml\", mode: \"toml\", ext: [\"toml\"]},\n    {name: \"Tornado\", mime: \"text/x-tornado\", mode: \"tornado\"},\n    {name: \"troff\", mime: \"text/troff\", mode: \"troff\", ext: [\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\"]},\n    {name: \"TTCN\", mime: \"text/x-ttcn\", mode: \"ttcn\", ext: [\"ttcn\", \"ttcn3\", \"ttcnpp\"]},\n    {name: \"TTCN_CFG\", mime: \"text/x-ttcn-cfg\", mode: \"ttcn-cfg\", ext: [\"cfg\"]},\n    {name: \"Turtle\", mime: \"text/turtle\", mode: \"turtle\", ext: [\"ttl\"]},\n    {name: \"TypeScript\", mime: \"application/typescript\", mode: \"javascript\", ext: [\"ts\"], alias: [\"ts\"]},\n    {name: \"TypeScript-JSX\", mime: \"text/typescript-jsx\", mode: \"jsx\", ext: [\"tsx\"], alias: [\"tsx\"]},\n    {name: \"Twig\", mime: \"text/x-twig\", mode: \"twig\"},\n    {name: \"Web IDL\", mime: \"text/x-webidl\", mode: \"webidl\", ext: [\"webidl\"]},\n    {name: \"VB.NET\", mime: \"text/x-vb\", mode: \"vb\", ext: [\"vb\"]},\n    {name: \"VBScript\", mime: \"text/vbscript\", mode: \"vbscript\", ext: [\"vbs\"]},\n    {name: \"Velocity\", mime: \"text/velocity\", mode: \"velocity\", ext: [\"vtl\"]},\n    {name: \"Verilog\", mime: \"text/x-verilog\", mode: \"verilog\", ext: [\"v\"]},\n    {name: \"VHDL\", mime: \"text/x-vhdl\", mode: \"vhdl\", ext: [\"vhd\", \"vhdl\"]},\n    {name: \"Vue.js Component\", mimes: [\"script/x-vue\", \"text/x-vue\"], mode: \"vue\", ext: [\"vue\"]},\n    {name: \"XML\", mimes: [\"application/xml\", \"text/xml\"], mode: \"xml\", ext: [\"xml\", \"xsl\", \"xsd\", \"svg\"], alias: [\"rss\", \"wsdl\", \"xsd\"]},\n    {name: \"XQuery\", mime: \"application/xquery\", mode: \"xquery\", ext: [\"xy\", \"xquery\"]},\n    {name: \"Yacas\", mime: \"text/x-yacas\", mode: \"yacas\", ext: [\"ys\"]},\n    {name: \"YAML\", mimes: [\"text/x-yaml\", \"text/yaml\"], mode: \"yaml\", ext: [\"yaml\", \"yml\"], alias: [\"yml\"]},\n    {name: \"Z80\", mime: \"text/x-z80\", mode: \"z80\", ext: [\"z80\"]},\n    {name: \"mscgen\", mime: \"text/x-mscgen\", mode: \"mscgen\", ext: [\"mscgen\", \"mscin\", \"msc\"]},\n    {name: \"xu\", mime: \"text/x-xu\", mode: \"mscgen\", ext: [\"xu\"]},\n    {name: \"msgenny\", mime: \"text/x-msgenny\", mode: \"mscgen\", ext: [\"msgenny\"]}\n  ];\n  // Ensure all modes have a mime property for backwards compatibility\n  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n    var info = CodeMirror.modeInfo[i];\n    if (info.mimes) info.mime = info.mimes[0];\n  }\n\n  CodeMirror.findModeByMIME = function(mime) {\n    mime = mime.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.mime == mime) return info;\n      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)\n        if (info.mimes[j] == mime) return info;\n    }\n    if (/\\+xml$/.test(mime)) return CodeMirror.findModeByMIME(\"application/xml\")\n    if (/\\+json$/.test(mime)) return CodeMirror.findModeByMIME(\"application/json\")\n  };\n\n  CodeMirror.findModeByExtension = function(ext) {\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.ext) for (var j = 0; j < info.ext.length; j++)\n        if (info.ext[j] == ext) return info;\n    }\n  };\n\n  CodeMirror.findModeByFileName = function(filename) {\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.file && info.file.test(filename)) return info;\n    }\n    var dot = filename.lastIndexOf(\".\");\n    var ext = dot > -1 && filename.substring(dot + 1, filename.length);\n    if (ext) return CodeMirror.findModeByExtension(ext);\n  };\n\n  CodeMirror.findModeByName = function(name) {\n    name = name.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.name.toLowerCase() == name) return info;\n      if (info.alias) for (var j = 0; j < info.alias.length; j++)\n        if (info.alias[j].toLowerCase() == name) return info;\n    }\n  };\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nvar htmlConfig = {\n  autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,\n                    'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,\n                    'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,\n                    'track': true, 'wbr': true, 'menuitem': true},\n  implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,\n                     'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,\n                     'th': true, 'tr': true},\n  contextGrabbers: {\n    'dd': {'dd': true, 'dt': true},\n    'dt': {'dd': true, 'dt': true},\n    'li': {'li': true},\n    'option': {'option': true, 'optgroup': true},\n    'optgroup': {'optgroup': true},\n    'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,\n          'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,\n          'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,\n          'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,\n          'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},\n    'rp': {'rp': true, 'rt': true},\n    'rt': {'rp': true, 'rt': true},\n    'tbody': {'tbody': true, 'tfoot': true},\n    'td': {'td': true, 'th': true},\n    'tfoot': {'tbody': true},\n    'th': {'td': true, 'th': true},\n    'thead': {'tbody': true, 'tfoot': true},\n    'tr': {'tr': true}\n  },\n  doNotIndent: {\"pre\": true},\n  allowUnquoted: true,\n  allowMissing: true,\n  caseFold: true\n}\n\nvar xmlConfig = {\n  autoSelfClosers: {},\n  implicitlyClosed: {},\n  contextGrabbers: {},\n  doNotIndent: {},\n  allowUnquoted: false,\n  allowMissing: false,\n  allowMissingTagName: false,\n  caseFold: false\n}\n\nCodeMirror.defineMode(\"xml\", function(editorConf, config_) {\n  var indentUnit = editorConf.indentUnit\n  var config = {}\n  var defaults = config_.htmlMode ? htmlConfig : xmlConfig\n  for (var prop in defaults) config[prop] = defaults[prop]\n  for (var prop in config_) config[prop] = config_[prop]\n\n  // Return variables for tokenizers\n  var type, setStyle;\n\n  function inText(stream, state) {\n    function chain(parser) {\n      state.tokenize = parser;\n      return parser(stream, state);\n    }\n\n    var ch = stream.next();\n    if (ch == \"<\") {\n      if (stream.eat(\"!\")) {\n        if (stream.eat(\"[\")) {\n          if (stream.match(\"CDATA[\")) return chain(inBlock(\"atom\", \"]]>\"));\n          else return null;\n        } else if (stream.match(\"--\")) {\n          return chain(inBlock(\"comment\", \"-->\"));\n        } else if (stream.match(\"DOCTYPE\", true, true)) {\n          stream.eatWhile(/[\\w\\._\\-]/);\n          return chain(doctype(1));\n        } else {\n          return null;\n        }\n      } else if (stream.eat(\"?\")) {\n        stream.eatWhile(/[\\w\\._\\-]/);\n        state.tokenize = inBlock(\"meta\", \"?>\");\n        return \"meta\";\n      } else {\n        type = stream.eat(\"/\") ? \"closeTag\" : \"openTag\";\n        state.tokenize = inTag;\n        return \"tag bracket\";\n      }\n    } else if (ch == \"&\") {\n      var ok;\n      if (stream.eat(\"#\")) {\n        if (stream.eat(\"x\")) {\n          ok = stream.eatWhile(/[a-fA-F\\d]/) && stream.eat(\";\");\n        } else {\n          ok = stream.eatWhile(/[\\d]/) && stream.eat(\";\");\n        }\n      } else {\n        ok = stream.eatWhile(/[\\w\\.\\-:]/) && stream.eat(\";\");\n      }\n      return ok ? \"atom\" : \"error\";\n    } else {\n      stream.eatWhile(/[^&<]/);\n      return null;\n    }\n  }\n  inText.isInText = true;\n\n  function inTag(stream, state) {\n    var ch = stream.next();\n    if (ch == \">\" || (ch == \"/\" && stream.eat(\">\"))) {\n      state.tokenize = inText;\n      type = ch == \">\" ? \"endTag\" : \"selfcloseTag\";\n      return \"tag bracket\";\n    } else if (ch == \"=\") {\n      type = \"equals\";\n      return null;\n    } else if (ch == \"<\") {\n      state.tokenize = inText;\n      state.state = baseState;\n      state.tagName = state.tagStart = null;\n      var next = state.tokenize(stream, state);\n      return next ? next + \" tag error\" : \"tag error\";\n    } else if (/[\\'\\\"]/.test(ch)) {\n      state.tokenize = inAttribute(ch);\n      state.stringStartCol = stream.column();\n      return state.tokenize(stream, state);\n    } else {\n      stream.match(/^[^\\s\\u00a0=<>\\\"\\']*[^\\s\\u00a0=<>\\\"\\'\\/]/);\n      return \"word\";\n    }\n  }\n\n  function inAttribute(quote) {\n    var closure = function(stream, state) {\n      while (!stream.eol()) {\n        if (stream.next() == quote) {\n          state.tokenize = inTag;\n          break;\n        }\n      }\n      return \"string\";\n    };\n    closure.isInAttribute = true;\n    return closure;\n  }\n\n  function inBlock(style, terminator) {\n    return function(stream, state) {\n      while (!stream.eol()) {\n        if (stream.match(terminator)) {\n          state.tokenize = inText;\n          break;\n        }\n        stream.next();\n      }\n      return style;\n    }\n  }\n\n  function doctype(depth) {\n    return function(stream, state) {\n      var ch;\n      while ((ch = stream.next()) != null) {\n        if (ch == \"<\") {\n          state.tokenize = doctype(depth + 1);\n          return state.tokenize(stream, state);\n        } else if (ch == \">\") {\n          if (depth == 1) {\n            state.tokenize = inText;\n            break;\n          } else {\n            state.tokenize = doctype(depth - 1);\n            return state.tokenize(stream, state);\n          }\n        }\n      }\n      return \"meta\";\n    };\n  }\n\n  function Context(state, tagName, startOfLine) {\n    this.prev = state.context;\n    this.tagName = tagName;\n    this.indent = state.indented;\n    this.startOfLine = startOfLine;\n    if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))\n      this.noIndent = true;\n  }\n  function popContext(state) {\n    if (state.context) state.context = state.context.prev;\n  }\n  function maybePopContext(state, nextTagName) {\n    var parentTagName;\n    while (true) {\n      if (!state.context) {\n        return;\n      }\n      parentTagName = state.context.tagName;\n      if (!config.contextGrabbers.hasOwnProperty(parentTagName) ||\n          !config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {\n        return;\n      }\n      popContext(state);\n    }\n  }\n\n  function baseState(type, stream, state) {\n    if (type == \"openTag\") {\n      state.tagStart = stream.column();\n      return tagNameState;\n    } else if (type == \"closeTag\") {\n      return closeTagNameState;\n    } else {\n      return baseState;\n    }\n  }\n  function tagNameState(type, stream, state) {\n    if (type == \"word\") {\n      state.tagName = stream.current();\n      setStyle = \"tag\";\n      return attrState;\n    } else if (config.allowMissingTagName && type == \"endTag\") {\n      setStyle = \"tag bracket\";\n      return attrState(type, stream, state);\n    } else {\n      setStyle = \"error\";\n      return tagNameState;\n    }\n  }\n  function closeTagNameState(type, stream, state) {\n    if (type == \"word\") {\n      var tagName = stream.current();\n      if (state.context && state.context.tagName != tagName &&\n          config.implicitlyClosed.hasOwnProperty(state.context.tagName))\n        popContext(state);\n      if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {\n        setStyle = \"tag\";\n        return closeState;\n      } else {\n        setStyle = \"tag error\";\n        return closeStateErr;\n      }\n    } else if (config.allowMissingTagName && type == \"endTag\") {\n      setStyle = \"tag bracket\";\n      return closeState(type, stream, state);\n    } else {\n      setStyle = \"error\";\n      return closeStateErr;\n    }\n  }\n\n  function closeState(type, _stream, state) {\n    if (type != \"endTag\") {\n      setStyle = \"error\";\n      return closeState;\n    }\n    popContext(state);\n    return baseState;\n  }\n  function closeStateErr(type, stream, state) {\n    setStyle = \"error\";\n    return closeState(type, stream, state);\n  }\n\n  function attrState(type, _stream, state) {\n    if (type == \"word\") {\n      setStyle = \"attribute\";\n      return attrEqState;\n    } else if (type == \"endTag\" || type == \"selfcloseTag\") {\n      var tagName = state.tagName, tagStart = state.tagStart;\n      state.tagName = state.tagStart = null;\n      if (type == \"selfcloseTag\" ||\n          config.autoSelfClosers.hasOwnProperty(tagName)) {\n        maybePopContext(state, tagName);\n      } else {\n        maybePopContext(state, tagName);\n        state.context = new Context(state, tagName, tagStart == state.indented);\n      }\n      return baseState;\n    }\n    setStyle = \"error\";\n    return attrState;\n  }\n  function attrEqState(type, stream, state) {\n    if (type == \"equals\") return attrValueState;\n    if (!config.allowMissing) setStyle = \"error\";\n    return attrState(type, stream, state);\n  }\n  function attrValueState(type, stream, state) {\n    if (type == \"string\") return attrContinuedState;\n    if (type == \"word\" && config.allowUnquoted) {setStyle = \"string\"; return attrState;}\n    setStyle = \"error\";\n    return attrState(type, stream, state);\n  }\n  function attrContinuedState(type, stream, state) {\n    if (type == \"string\") return attrContinuedState;\n    return attrState(type, stream, state);\n  }\n\n  return {\n    startState: function(baseIndent) {\n      var state = {tokenize: inText,\n                   state: baseState,\n                   indented: baseIndent || 0,\n                   tagName: null, tagStart: null,\n                   context: null}\n      if (baseIndent != null) state.baseIndent = baseIndent\n      return state\n    },\n\n    token: function(stream, state) {\n      if (!state.tagName && stream.sol())\n        state.indented = stream.indentation();\n\n      if (stream.eatSpace()) return null;\n      type = null;\n      var style = state.tokenize(stream, state);\n      if ((style || type) && style != \"comment\") {\n        setStyle = null;\n        state.state = state.state(type || style, stream, state);\n        if (setStyle)\n          style = setStyle == \"error\" ? style + \" error\" : setStyle;\n      }\n      return style;\n    },\n\n    indent: function(state, textAfter, fullLine) {\n      var context = state.context;\n      // Indent multi-line strings (e.g. css).\n      if (state.tokenize.isInAttribute) {\n        if (state.tagStart == state.indented)\n          return state.stringStartCol + 1;\n        else\n          return state.indented + indentUnit;\n      }\n      if (context && context.noIndent) return CodeMirror.Pass;\n      if (state.tokenize != inTag && state.tokenize != inText)\n        return fullLine ? fullLine.match(/^(\\s*)/)[0].length : 0;\n      // Indent the starts of attribute names.\n      if (state.tagName) {\n        if (config.multilineTagIndentPastTag !== false)\n          return state.tagStart + state.tagName.length + 2;\n        else\n          return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);\n      }\n      if (config.alignCDATA && /<!\\[CDATA\\[/.test(textAfter)) return 0;\n      var tagAfter = textAfter && /^<(\\/)?([\\w_:\\.-]*)/.exec(textAfter);\n      if (tagAfter && tagAfter[1]) { // Closing tag spotted\n        while (context) {\n          if (context.tagName == tagAfter[2]) {\n            context = context.prev;\n            break;\n          } else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) {\n            context = context.prev;\n          } else {\n            break;\n          }\n        }\n      } else if (tagAfter) { // Opening tag spotted\n        while (context) {\n          var grabbers = config.contextGrabbers[context.tagName];\n          if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))\n            context = context.prev;\n          else\n            break;\n        }\n      }\n      while (context && context.prev && !context.startOfLine)\n        context = context.prev;\n      if (context) return context.indent + indentUnit;\n      else return state.baseIndent || 0;\n    },\n\n    electricInput: /<\\/[\\s\\w:]+>$/,\n    blockCommentStart: \"<!--\",\n    blockCommentEnd: \"-->\",\n\n    configuration: config.htmlMode ? \"html\" : \"xml\",\n    helperType: config.htmlMode ? \"html\" : \"xml\",\n\n    skipAttribute: function(state) {\n      if (state.state == attrValueState)\n        state.state = attrState\n    },\n\n    xmlCurrentTag: function(state) {\n      return state.tagName ? {name: state.tagName, close: state.type == \"closeTag\"} : null\n    },\n\n    xmlCurrentContext: function(state) {\n      var context = []\n      for (var cx = state.context; cx; cx = cx.prev)\n        if (cx.tagName) context.push(cx.tagName)\n      return context.reverse()\n    }\n  };\n});\n\nCodeMirror.defineMIME(\"text/xml\", \"xml\");\nCodeMirror.defineMIME(\"application/xml\", \"xml\");\nif (!CodeMirror.mimeModes.hasOwnProperty(\"text/html\"))\n  CodeMirror.defineMIME(\"text/html\", {name: \"xml\", htmlMode: true});\n\n});\n","\nmodule.exports = {\n\n    _patterns: [\n\n        {\n            name: 'blockquote',\n            regex: /<blockquote.*?>([\\s\\S]*?)<\\/blockquote>/im,\n            callback: function (matches) {\n                return '> ' + this.trim(matches[1]);\n            }\n        },\n\n        {\n\n            name: 'pre-code',\n            regex: /<pre.*?>.*?<code.*?>([\\s\\S]*?)<\\/code>.*?<\\/pre>/im,\n            callback: function (matches) {\n                return '```\\n' + this.escape(matches[1]) + '\\n```';\n                //return '\\n```\\n$1\\n```\\n';\n            }\n        },\n\n        {\n            name: 'code',\n            regex: /<code.*?>([\\s\\S]*?)<\\/code>/im,\n            callback: function (matches) {\n                return '```' + this.escape(matches[1]) + '```';\n            }\n        },\n\n        {\n            name: 'pre',\n            regex: /<pre.*?>([\\s\\S]*?)<\\/pre>/im,\n            callback: function (matches) {\n                return '\\n```\\n' + this.escape(matches[1]) + '\\n```\\n';\n            }\n        },\n\n        {\n            name: 'heading',\n            regex: /<h(\\d*).*?>(.*?)<\\/h\\d*>/im,\n            callback: function (matches) {\n                var count = parseInt(matches[1]);\n                var string = '';\n                for (var x = 0; x < count; x++) {\n                    string += '#'\n                }\n                return string + ' ' + this.trim(matches[2]) + '\\n';\n            }\n        },\n        {\n            name: 'p',\n            //regex: /<p>([\\s\\S]*?)<\\/p>/gim,\n            regex: /<p.*?>(.*?)<\\/p>/gmi,\n            callback: function () {\n                return '\\n$1\\n';\n            }\n\n        },\n\n\n        {\n            name: 'ul',\n            regex: /<ul.*?>([\\s\\S]*?)<\\/ul>/im,\n            callback: function (matches) {\n                var html = matches[1];\n                var regex = /<li>([\\s\\S]*?)<\\/li>/i;\n                var m = [];\n                while (m = regex.exec(html)) {\n                    if (m) {\n                        html = this.trim(html.replace(regex, '* $1{x}'));\n                    }\n                }\n                return html.replace(/{x}/g, '\\n');;\n\n            }\n        },\n        {\n            name: 'ol',\n            regex: /<ol.*?>([\\s\\S]*?)<\\/ol>/im,\n            callback: function (matches) {\n                var html = matches[1];\n                var regex = /<li>([\\s\\S]*?)<\\/li>/i;\n                var m = [];\n                while (m = regex.exec(html)) {\n                    if (m) {\n                        html = this.trim(html.replace(regex, '1. $1{x}'));\n                    }\n                }\n                return html.replace(/{x}/g, '\\n');\n            }\n        },\n\n\n        {\n            name: 'bold',\n            regex: /<(?:b|strong)>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '**$1**';\n            }\n        },\n\n        {\n            name: 'italic',\n            regex: /<(?:i|em)>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '*$1*';\n            }\n        },\n        {\n            name: 'del',\n            regex: /<del.*?>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '~~$1~~';\n            }\n        },\n\n        {\n            name: 'br',\n            regex: /<br.*?>/gim,\n            callback: function () {\n                return '\\n';\n            }\n        },\n        {\n            name: 'hr',\n            regex: /<hr.*?>/gim,\n            callback: function () {\n                return '\\n* * *\\n';\n            }\n        },\n\n        {\n            name: 'div',\n            regex: /<div.*?>(.*?)<\\/div>/gim,\n            callback: function () {\n                return '$1\\n';\n            }\n        },\n        {\n            name: 'a',\n            regex: /<a.*? href=\"([^\"]+)\".*?>([^<]+)<\\/a>/gim,\n            callback: function () {\n                return '[$2]($1 \"$2\")';\n            }\n\n        },\n        {\n            name: 'image',\n            regex: /<img.*?src\\s*=\\s*['\\\"]([^'\\\"]*?)['\\\"][^>]*?>/gim,\n            callback: function () {\n                return '![]($1)';\n            }\n        },\n\n        {\n            name: 'style',\n            regex: /<style\\b[^<]*(?:(?!<\\/style>)<[^<]*)*<\\/style>/gim,\n            callback: function () {\n                return '';\n            }\n        },\n\n        {\n            name: 'script',\n            regex: /<script\\b[^<]*(?:(?!<\\/script>)<[^<]*)*<\\/script>/gim,\n            callback: function () {\n                return '';\n            }\n        },\n\n        {\n            name: 'html',\n            regex: /<(?:.)*?>/gm,\n            callback: function () {\n                return '';\n            }\n        },\n\n\n    ],\n\n    escape: function (html) {\n        return html\n            .replace(/</g, \"&lt;\")\n            .replace(/>/g, \"&gt;\");\n        // .replace(/\"/g, \"&quot;\")\n        // .replace(/'/g, \"&#039;\");\n    },\n\n    decode: function (str) {\n\n\n\n        return str.replace(/&nbsp;/g, ' ')\n            .replace(/&amp;/g, '&')\n            .replace(/&gt;/g, '>')\n            .replace(/&lt;/g, '<')\n            .replace(/&quot;/g, '\"')\n            .replace(/&#(\\d+);/g, function (match, dec) {\n                return String.fromCharCode(dec);\n            });\n\n    },\n    trim: function (str) {\n        return str.replace(/(?:(?:^|\\n)\\s+|\\s+(?:$|\\n))/g, '').replace(/\\s+/g, ' ');\n    },\n    parse: function (html, regexs) {\n        var _t = this;\n        if (html && html.length > 0) {\n\n            if (regexs) {\n                regexs = Array.isArray(regexs) ? regexs : [regexs];\n                this._patterns.concat(regexs);\n            }\n            this._patterns.forEach(function (p) {\n                var matches = [];\n                while (matches = p.regex.exec(html)) {\n                    // console.log(matches);\n                    if (matches) {\n                        var txt = '$1';\n                        if (p.callback && typeof (p.callback) === 'function') {\n                            txt = p.callback.call(_t, matches);\n                        }\n\n                        html = html.replace(p.regex, txt);\n                    }\n                }\n            });\n        }\n        return this.decode(html);\n    }\n}","/**\n * marked - a markdown parser\n * Copyright (c) 2011-2018, Christopher Jeffrey. (MIT Licensed)\n * https://github.com/markedjs/marked\n */\n\n;(function(root) {\n'use strict';\n\n/**\n * Block-Level Grammar\n */\n\nvar block = {\n  newline: /^\\n+/,\n  code: /^( {4}[^\\n]+\\n*)+/,\n  fences: /^ {0,3}(`{3,}|~{3,})([^`~\\n]*)\\n(?:|([\\s\\S]*?)\\n)(?: {0,3}\\1[~`]* *(?:\\n+|$)|$)/,\n  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$)/,\n  heading: /^ {0,3}(#{1,6}) +([^\\n]*?)(?: +#+)? *(?:\\n+|$)/,\n  blockquote: /^( {0,3}> ?(paragraph|[^\\n]*)(?:\\n|$))+/,\n  list: /^( {0,3})(bull) [\\s\\S]+?(?:hr|def|\\n{2,}(?! )(?!\\1bull )\\n*|\\s*$)/,\n  html: '^ {0,3}(?:' // optional indentation\n    + '<(script|pre|style)[\\\\s>][\\\\s\\\\S]*?(?:</\\\\1>[^\\\\n]*\\\\n+|$)' // (1)\n    + '|comment[^\\\\n]*(\\\\n+|$)' // (2)\n    + '|<\\\\?[\\\\s\\\\S]*?\\\\?>\\\\n*' // (3)\n    + '|<![A-Z][\\\\s\\\\S]*?>\\\\n*' // (4)\n    + '|<!\\\\[CDATA\\\\[[\\\\s\\\\S]*?\\\\]\\\\]>\\\\n*' // (5)\n    + '|</?(tag)(?: +|\\\\n|/?>)[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (6)\n    + '|<(?!script|pre|style)([a-z][\\\\w-]*)(?:attribute)*? */?>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (7) open tag\n    + '|</(?!script|pre|style)[a-z][\\\\w-]*\\\\s*>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (7) closing tag\n    + ')',\n  def: /^ {0,3}\\[(label)\\]: *\\n? *<?([^\\s>]+)>?(?:(?: +\\n? *| *\\n *)(title))? *(?:\\n+|$)/,\n  nptable: noop,\n  table: noop,\n  lheading: /^([^\\n]+)\\n {0,3}(=+|-+) *(?:\\n+|$)/,\n  // regex template, placeholders will be replaced according to different paragraph\n  // interruption rules of commonmark and the original markdown spec:\n  _paragraph: /^([^\\n]+(?:\\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\\n]+)*)/,\n  text: /^[^\\n]+/\n};\n\nblock._label = /(?!\\s*\\])(?:\\\\[\\[\\]]|[^\\[\\]])+/;\nblock._title = /(?:\"(?:\\\\\"?|[^\"\\\\])*\"|'[^'\\n]*(?:\\n[^'\\n]+)*\\n?'|\\([^()]*\\))/;\nblock.def = edit(block.def)\n  .replace('label', block._label)\n  .replace('title', block._title)\n  .getRegex();\n\nblock.bullet = /(?:[*+-]|\\d{1,9}\\.)/;\nblock.item = /^( *)(bull) ?[^\\n]*(?:\\n(?!\\1bull ?)[^\\n]*)*/;\nblock.item = edit(block.item, 'gm')\n  .replace(/bull/g, block.bullet)\n  .getRegex();\n\nblock.list = edit(block.list)\n  .replace(/bull/g, block.bullet)\n  .replace('hr', '\\\\n+(?=\\\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\\\* *){3,})(?:\\\\n+|$))')\n  .replace('def', '\\\\n+(?=' + block.def.source + ')')\n  .getRegex();\n\nblock._tag = 'address|article|aside|base|basefont|blockquote|body|caption'\n  + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'\n  + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'\n  + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'\n  + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'\n  + '|track|ul';\nblock._comment = /<!--(?!-?>)[\\s\\S]*?-->/;\nblock.html = edit(block.html, 'i')\n  .replace('comment', block._comment)\n  .replace('tag', block._tag)\n  .replace('attribute', / +[a-zA-Z:_][\\w.:-]*(?: *= *\"[^\"\\n]*\"| *= *'[^'\\n]*'| *= *[^\\s\"'=<>`]+)?/)\n  .getRegex();\n\nblock.paragraph = edit(block._paragraph)\n  .replace('hr', block.hr)\n  .replace('heading', ' {0,3}#{1,6} +')\n  .replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs\n  .replace('blockquote', ' {0,3}>')\n  .replace('fences', ' {0,3}(?:`{3,}|~{3,})[^`\\\\n]*\\\\n')\n  .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt\n  .replace('html', '</?(?:tag)(?: +|\\\\n|/?>)|<(?:script|pre|style|!--)')\n  .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks\n  .getRegex();\n\nblock.blockquote = edit(block.blockquote)\n  .replace('paragraph', block.paragraph)\n  .getRegex();\n\n/**\n * Normal Block Grammar\n */\n\nblock.normal = merge({}, block);\n\n/**\n * GFM Block Grammar\n */\n\nblock.gfm = merge({}, block.normal, {\n  nptable: /^ *([^|\\n ].*\\|.*)\\n *([-:]+ *\\|[-| :]*)(?:\\n((?:.*[^>\\n ].*(?:\\n|$))*)\\n*|$)/,\n  table: /^ *\\|(.+)\\n *\\|?( *[-:]+[-| :]*)(?:\\n((?: *[^>\\n ].*(?:\\n|$))*)\\n*|$)/\n});\n\n/**\n * Pedantic grammar (original John Gruber's loose markdown specification)\n */\n\nblock.pedantic = merge({}, block.normal, {\n  html: edit(\n    '^ *(?:comment *(?:\\\\n|\\\\s*$)'\n    + '|<(tag)[\\\\s\\\\S]+?</\\\\1> *(?:\\\\n{2,}|\\\\s*$)' // closed tag\n    + '|<tag(?:\"[^\"]*\"|\\'[^\\']*\\'|\\\\s[^\\'\"/>\\\\s]*)*?/?> *(?:\\\\n{2,}|\\\\s*$))')\n    .replace('comment', block._comment)\n    .replace(/tag/g, '(?!(?:'\n      + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'\n      + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'\n      + '\\\\b)\\\\w+(?!:|[^\\\\w\\\\s@]*@)\\\\b')\n    .getRegex(),\n  def: /^ *\\[([^\\]]+)\\]: *<?([^\\s>]+)>?(?: +([\"(][^\\n]+[\")]))? *(?:\\n+|$)/,\n  heading: /^ *(#{1,6}) *([^\\n]+?) *(?:#+ *)?(?:\\n+|$)/,\n  fences: noop, // fences not supported\n  paragraph: edit(block.normal._paragraph)\n    .replace('hr', block.hr)\n    .replace('heading', ' *#{1,6} *[^\\n]')\n    .replace('lheading', block.lheading)\n    .replace('blockquote', ' {0,3}>')\n    .replace('|fences', '')\n    .replace('|list', '')\n    .replace('|html', '')\n    .getRegex()\n});\n\n/**\n * Block Lexer\n */\n\nfunction Lexer(options) {\n  this.tokens = [];\n  this.tokens.links = Object.create(null);\n  this.options = options || marked.defaults;\n  this.rules = block.normal;\n\n  if (this.options.pedantic) {\n    this.rules = block.pedantic;\n  } else if (this.options.gfm) {\n    this.rules = block.gfm;\n  }\n}\n\n/**\n * Expose Block Rules\n */\n\nLexer.rules = block;\n\n/**\n * Static Lex Method\n */\n\nLexer.lex = function(src, options) {\n  var lexer = new Lexer(options);\n  return lexer.lex(src);\n};\n\n/**\n * Preprocessing\n */\n\nLexer.prototype.lex = function(src) {\n  src = src\n    .replace(/\\r\\n|\\r/g, '\\n')\n    .replace(/\\t/g, '    ')\n    .replace(/\\u00a0/g, ' ')\n    .replace(/\\u2424/g, '\\n');\n\n  return this.token(src, true);\n};\n\n/**\n * Lexing\n */\n\nLexer.prototype.token = function(src, top) {\n  src = src.replace(/^ +$/gm, '');\n  var next,\n      loose,\n      cap,\n      bull,\n      b,\n      item,\n      listStart,\n      listItems,\n      t,\n      space,\n      i,\n      tag,\n      l,\n      isordered,\n      istask,\n      ischecked;\n\n  while (src) {\n    // newline\n    if (cap = this.rules.newline.exec(src)) {\n      src = src.substring(cap[0].length);\n      if (cap[0].length > 1) {\n        this.tokens.push({\n          type: 'space'\n        });\n      }\n    }\n\n    // code\n    if (cap = this.rules.code.exec(src)) {\n      var lastToken = this.tokens[this.tokens.length - 1];\n      src = src.substring(cap[0].length);\n      // An indented code block cannot interrupt a paragraph.\n      if (lastToken && lastToken.type === 'paragraph') {\n        lastToken.text += '\\n' + cap[0].trimRight();\n      } else {\n        cap = cap[0].replace(/^ {4}/gm, '');\n        this.tokens.push({\n          type: 'code',\n          codeBlockStyle: 'indented',\n          text: !this.options.pedantic\n            ? rtrim(cap, '\\n')\n            : cap\n        });\n      }\n      continue;\n    }\n\n    // fences\n    if (cap = this.rules.fences.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'code',\n        lang: cap[2] ? cap[2].trim() : cap[2],\n        text: cap[3] || ''\n      });\n      continue;\n    }\n\n    // heading\n    if (cap = this.rules.heading.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'heading',\n        depth: cap[1].length,\n        text: cap[2]\n      });\n      continue;\n    }\n\n    // table no leading pipe (gfm)\n    if (cap = this.rules.nptable.exec(src)) {\n      item = {\n        type: 'table',\n        header: splitCells(cap[1].replace(/^ *| *\\| *$/g, '')),\n        align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\n        cells: cap[3] ? cap[3].replace(/\\n$/, '').split('\\n') : []\n      };\n\n      if (item.header.length === item.align.length) {\n        src = src.substring(cap[0].length);\n\n        for (i = 0; i < item.align.length; i++) {\n          if (/^ *-+: *$/.test(item.align[i])) {\n            item.align[i] = 'right';\n          } else if (/^ *:-+: *$/.test(item.align[i])) {\n            item.align[i] = 'center';\n          } else if (/^ *:-+ *$/.test(item.align[i])) {\n            item.align[i] = 'left';\n          } else {\n            item.align[i] = null;\n          }\n        }\n\n        for (i = 0; i < item.cells.length; i++) {\n          item.cells[i] = splitCells(item.cells[i], item.header.length);\n        }\n\n        this.tokens.push(item);\n\n        continue;\n      }\n    }\n\n    // hr\n    if (cap = this.rules.hr.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'hr'\n      });\n      continue;\n    }\n\n    // blockquote\n    if (cap = this.rules.blockquote.exec(src)) {\n      src = src.substring(cap[0].length);\n\n      this.tokens.push({\n        type: 'blockquote_start'\n      });\n\n      cap = cap[0].replace(/^ *> ?/gm, '');\n\n      // Pass `top` to keep the current\n      // \"toplevel\" state. This is exactly\n      // how markdown.pl works.\n      this.token(cap, top);\n\n      this.tokens.push({\n        type: 'blockquote_end'\n      });\n\n      continue;\n    }\n\n    // list\n    if (cap = this.rules.list.exec(src)) {\n      src = src.substring(cap[0].length);\n      bull = cap[2];\n      isordered = bull.length > 1;\n\n      listStart = {\n        type: 'list_start',\n        ordered: isordered,\n        start: isordered ? +bull : '',\n        loose: false\n      };\n\n      this.tokens.push(listStart);\n\n      // Get each top-level item.\n      cap = cap[0].match(this.rules.item);\n\n      listItems = [];\n      next = false;\n      l = cap.length;\n      i = 0;\n\n      for (; i < l; i++) {\n        item = cap[i];\n\n        // Remove the list item's bullet\n        // so it is seen as the next token.\n        space = item.length;\n        item = item.replace(/^ *([*+-]|\\d+\\.) */, '');\n\n        // Outdent whatever the\n        // list item contains. Hacky.\n        if (~item.indexOf('\\n ')) {\n          space -= item.length;\n          item = !this.options.pedantic\n            ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')\n            : item.replace(/^ {1,4}/gm, '');\n        }\n\n        // Determine whether the next list item belongs here.\n        // Backpedal if it does not belong in this list.\n        if (i !== l - 1) {\n          b = block.bullet.exec(cap[i + 1])[0];\n          if (bull.length > 1 ? b.length === 1\n            : (b.length > 1 || (this.options.smartLists && b !== bull))) {\n            src = cap.slice(i + 1).join('\\n') + src;\n            i = l - 1;\n          }\n        }\n\n        // Determine whether item is loose or not.\n        // Use: /(^|\\n)(?! )[^\\n]+\\n\\n(?!\\s*$)/\n        // for discount behavior.\n        loose = next || /\\n\\n(?!\\s*$)/.test(item);\n        if (i !== l - 1) {\n          next = item.charAt(item.length - 1) === '\\n';\n          if (!loose) loose = next;\n        }\n\n        if (loose) {\n          listStart.loose = true;\n        }\n\n        // Check for task list items\n        istask = /^\\[[ xX]\\] /.test(item);\n        ischecked = undefined;\n        if (istask) {\n          ischecked = item[1] !== ' ';\n          item = item.replace(/^\\[[ xX]\\] +/, '');\n        }\n\n        t = {\n          type: 'list_item_start',\n          task: istask,\n          checked: ischecked,\n          loose: loose\n        };\n\n        listItems.push(t);\n        this.tokens.push(t);\n\n        // Recurse.\n        this.token(item, false);\n\n        this.tokens.push({\n          type: 'list_item_end'\n        });\n      }\n\n      if (listStart.loose) {\n        l = listItems.length;\n        i = 0;\n        for (; i < l; i++) {\n          listItems[i].loose = true;\n        }\n      }\n\n      this.tokens.push({\n        type: 'list_end'\n      });\n\n      continue;\n    }\n\n    // html\n    if (cap = this.rules.html.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: this.options.sanitize\n          ? 'paragraph'\n          : 'html',\n        pre: !this.options.sanitizer\n          && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),\n        text: this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]\n      });\n      continue;\n    }\n\n    // def\n    if (top && (cap = this.rules.def.exec(src))) {\n      src = src.substring(cap[0].length);\n      if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);\n      tag = cap[1].toLowerCase().replace(/\\s+/g, ' ');\n      if (!this.tokens.links[tag]) {\n        this.tokens.links[tag] = {\n          href: cap[2],\n          title: cap[3]\n        };\n      }\n      continue;\n    }\n\n    // table (gfm)\n    if (cap = this.rules.table.exec(src)) {\n      item = {\n        type: 'table',\n        header: splitCells(cap[1].replace(/^ *| *\\| *$/g, '')),\n        align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\n        cells: cap[3] ? cap[3].replace(/\\n$/, '').split('\\n') : []\n      };\n\n      if (item.header.length === item.align.length) {\n        src = src.substring(cap[0].length);\n\n        for (i = 0; i < item.align.length; i++) {\n          if (/^ *-+: *$/.test(item.align[i])) {\n            item.align[i] = 'right';\n          } else if (/^ *:-+: *$/.test(item.align[i])) {\n            item.align[i] = 'center';\n          } else if (/^ *:-+ *$/.test(item.align[i])) {\n            item.align[i] = 'left';\n          } else {\n            item.align[i] = null;\n          }\n        }\n\n        for (i = 0; i < item.cells.length; i++) {\n          item.cells[i] = splitCells(\n            item.cells[i].replace(/^ *\\| *| *\\| *$/g, ''),\n            item.header.length);\n        }\n\n        this.tokens.push(item);\n\n        continue;\n      }\n    }\n\n    // lheading\n    if (cap = this.rules.lheading.exec(src)) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'heading',\n        depth: cap[2].charAt(0) === '=' ? 1 : 2,\n        text: cap[1]\n      });\n      continue;\n    }\n\n    // top-level paragraph\n    if (top && (cap = this.rules.paragraph.exec(src))) {\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'paragraph',\n        text: cap[1].charAt(cap[1].length - 1) === '\\n'\n          ? cap[1].slice(0, -1)\n          : cap[1]\n      });\n      continue;\n    }\n\n    // text\n    if (cap = this.rules.text.exec(src)) {\n      // Top-level should never reach here.\n      src = src.substring(cap[0].length);\n      this.tokens.push({\n        type: 'text',\n        text: cap[0]\n      });\n      continue;\n    }\n\n    if (src) {\n      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));\n    }\n  }\n\n  return this.tokens;\n};\n\n/**\n * Inline-Level Grammar\n */\n\nvar inline = {\n  escape: /^\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/,\n  autolink: /^<(scheme:[^\\s\\x00-\\x1f<>]*|email)>/,\n  url: noop,\n  tag: '^comment'\n    + '|^</[a-zA-Z][\\\\w:-]*\\\\s*>' // self-closing tag\n    + '|^<[a-zA-Z][\\\\w-]*(?:attribute)*?\\\\s*/?>' // open tag\n    + '|^<\\\\?[\\\\s\\\\S]*?\\\\?>' // processing instruction, e.g. <?php ?>\n    + '|^<![a-zA-Z]+\\\\s[\\\\s\\\\S]*?>' // declaration, e.g. <!DOCTYPE html>\n    + '|^<!\\\\[CDATA\\\\[[\\\\s\\\\S]*?\\\\]\\\\]>', // CDATA section\n  link: /^!?\\[(label)\\]\\(\\s*(href)(?:\\s+(title))?\\s*\\)/,\n  reflink: /^!?\\[(label)\\]\\[(?!\\s*\\])((?:\\\\[\\[\\]]?|[^\\[\\]\\\\])+)\\]/,\n  nolink: /^!?\\[(?!\\s*\\])((?:\\[[^\\[\\]]*\\]|\\\\[\\[\\]]|[^\\[\\]])*)\\](?:\\[\\])?/,\n  strong: /^__([^\\s_])__(?!_)|^\\*\\*([^\\s*])\\*\\*(?!\\*)|^__([^\\s][\\s\\S]*?[^\\s])__(?!_)|^\\*\\*([^\\s][\\s\\S]*?[^\\s])\\*\\*(?!\\*)/,\n  em: /^_([^\\s_])_(?!_)|^\\*([^\\s*<\\[])\\*(?!\\*)|^_([^\\s<][\\s\\S]*?[^\\s_])_(?!_|[^\\spunctuation])|^_([^\\s_<][\\s\\S]*?[^\\s])_(?!_|[^\\spunctuation])|^\\*([^\\s<\"][\\s\\S]*?[^\\s\\*])\\*(?!\\*|[^\\spunctuation])|^\\*([^\\s*\"<\\[][\\s\\S]*?[^\\s])\\*(?!\\*)/,\n  code: /^(`+)([^`]|[^`][\\s\\S]*?[^`])\\1(?!`)/,\n  br: /^( {2,}|\\\\)\\n(?!\\s*$)/,\n  del: noop,\n  text: /^(`+|[^`])(?:[\\s\\S]*?(?:(?=[\\\\<!\\[`*]|\\b_|$)|[^ ](?= {2,}\\n))|(?= {2,}\\n))/\n};\n\n// list of punctuation marks from common mark spec\n// without ` and ] to workaround Rule 17 (inline code blocks/links)\ninline._punctuation = '!\"#$%&\\'()*+,\\\\-./:;<=>?@\\\\[^_{|}~';\ninline.em = edit(inline.em).replace(/punctuation/g, inline._punctuation).getRegex();\n\ninline._escapes = /\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/g;\n\ninline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;\ninline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;\ninline.autolink = edit(inline.autolink)\n  .replace('scheme', inline._scheme)\n  .replace('email', inline._email)\n  .getRegex();\n\ninline._attribute = /\\s+[a-zA-Z:_][\\w.:-]*(?:\\s*=\\s*\"[^\"]*\"|\\s*=\\s*'[^']*'|\\s*=\\s*[^\\s\"'=<>`]+)?/;\n\ninline.tag = edit(inline.tag)\n  .replace('comment', block._comment)\n  .replace('attribute', inline._attribute)\n  .getRegex();\n\ninline._label = /(?:\\[[^\\[\\]]*\\]|\\\\.|`[^`]*`|[^\\[\\]\\\\`])*?/;\ninline._href = /<(?:\\\\[<>]?|[^\\s<>\\\\])*>|[^\\s\\x00-\\x1f]*/;\ninline._title = /\"(?:\\\\\"?|[^\"\\\\])*\"|'(?:\\\\'?|[^'\\\\])*'|\\((?:\\\\\\)?|[^)\\\\])*\\)/;\n\ninline.link = edit(inline.link)\n  .replace('label', inline._label)\n  .replace('href', inline._href)\n  .replace('title', inline._title)\n  .getRegex();\n\ninline.reflink = edit(inline.reflink)\n  .replace('label', inline._label)\n  .getRegex();\n\n/**\n * Normal Inline Grammar\n */\n\ninline.normal = merge({}, inline);\n\n/**\n * Pedantic Inline Grammar\n */\n\ninline.pedantic = merge({}, inline.normal, {\n  strong: /^__(?=\\S)([\\s\\S]*?\\S)__(?!_)|^\\*\\*(?=\\S)([\\s\\S]*?\\S)\\*\\*(?!\\*)/,\n  em: /^_(?=\\S)([\\s\\S]*?\\S)_(?!_)|^\\*(?=\\S)([\\s\\S]*?\\S)\\*(?!\\*)/,\n  link: edit(/^!?\\[(label)\\]\\((.*?)\\)/)\n    .replace('label', inline._label)\n    .getRegex(),\n  reflink: edit(/^!?\\[(label)\\]\\s*\\[([^\\]]*)\\]/)\n    .replace('label', inline._label)\n    .getRegex()\n});\n\n/**\n * GFM Inline Grammar\n */\n\ninline.gfm = merge({}, inline.normal, {\n  escape: edit(inline.escape).replace('])', '~|])').getRegex(),\n  _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,\n  url: /^((?:ftp|https?):\\/\\/|www\\.)(?:[a-zA-Z0-9\\-]+\\.?)+[^\\s<]*|^email/,\n  _backpedal: /(?:[^?!.,:;*_~()&]+|\\([^)]*\\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,\n  del: /^~+(?=\\S)([\\s\\S]*?\\S)~+/,\n  text: /^(`+|[^`])(?:[\\s\\S]*?(?:(?=[\\\\<!\\[`*~]|\\b_|https?:\\/\\/|ftp:\\/\\/|www\\.|$)|[^ ](?= {2,}\\n)|[^a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-](?=[a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-]+@))|(?= {2,}\\n|[a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-]+@))/\n});\n\ninline.gfm.url = edit(inline.gfm.url, 'i')\n  .replace('email', inline.gfm._extended_email)\n  .getRegex();\n/**\n * GFM + Line Breaks Inline Grammar\n */\n\ninline.breaks = merge({}, inline.gfm, {\n  br: edit(inline.br).replace('{2,}', '*').getRegex(),\n  text: edit(inline.gfm.text)\n    .replace('\\\\b_', '\\\\b_| {2,}\\\\n')\n    .replace(/\\{2,\\}/g, '*')\n    .getRegex()\n});\n\n/**\n * Inline Lexer & Compiler\n */\n\nfunction InlineLexer(links, options) {\n  this.options = options || marked.defaults;\n  this.links = links;\n  this.rules = inline.normal;\n  this.renderer = this.options.renderer || new Renderer();\n  this.renderer.options = this.options;\n\n  if (!this.links) {\n    throw new Error('Tokens array requires a `links` property.');\n  }\n\n  if (this.options.pedantic) {\n    this.rules = inline.pedantic;\n  } else if (this.options.gfm) {\n    if (this.options.breaks) {\n      this.rules = inline.breaks;\n    } else {\n      this.rules = inline.gfm;\n    }\n  }\n}\n\n/**\n * Expose Inline Rules\n */\n\nInlineLexer.rules = inline;\n\n/**\n * Static Lexing/Compiling Method\n */\n\nInlineLexer.output = function(src, links, options) {\n  var inline = new InlineLexer(links, options);\n  return inline.output(src);\n};\n\n/**\n * Lexing/Compiling\n */\n\nInlineLexer.prototype.output = function(src) {\n  var out = '',\n      link,\n      text,\n      href,\n      title,\n      cap,\n      prevCapZero;\n\n  while (src) {\n    // escape\n    if (cap = this.rules.escape.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += escape(cap[1]);\n      continue;\n    }\n\n    // tag\n    if (cap = this.rules.tag.exec(src)) {\n      if (!this.inLink && /^<a /i.test(cap[0])) {\n        this.inLink = true;\n      } else if (this.inLink && /^<\\/a>/i.test(cap[0])) {\n        this.inLink = false;\n      }\n      if (!this.inRawBlock && /^<(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n        this.inRawBlock = true;\n      } else if (this.inRawBlock && /^<\\/(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n        this.inRawBlock = false;\n      }\n\n      src = src.substring(cap[0].length);\n      out += this.options.sanitize\n        ? this.options.sanitizer\n          ? this.options.sanitizer(cap[0])\n          : escape(cap[0])\n        : cap[0];\n      continue;\n    }\n\n    // link\n    if (cap = this.rules.link.exec(src)) {\n      var lastParenIndex = findClosingBracket(cap[2], '()');\n      if (lastParenIndex > -1) {\n        var linkLen = 4 + cap[1].length + lastParenIndex;\n        cap[2] = cap[2].substring(0, lastParenIndex);\n        cap[0] = cap[0].substring(0, linkLen).trim();\n        cap[3] = '';\n      }\n      src = src.substring(cap[0].length);\n      this.inLink = true;\n      href = cap[2];\n      if (this.options.pedantic) {\n        link = /^([^'\"]*[^\\s])\\s+(['\"])(.*)\\2/.exec(href);\n\n        if (link) {\n          href = link[1];\n          title = link[3];\n        } else {\n          title = '';\n        }\n      } else {\n        title = cap[3] ? cap[3].slice(1, -1) : '';\n      }\n      href = href.trim().replace(/^<([\\s\\S]*)>$/, '$1');\n      out += this.outputLink(cap, {\n        href: InlineLexer.escapes(href),\n        title: InlineLexer.escapes(title)\n      });\n      this.inLink = false;\n      continue;\n    }\n\n    // reflink, nolink\n    if ((cap = this.rules.reflink.exec(src))\n        || (cap = this.rules.nolink.exec(src))) {\n      src = src.substring(cap[0].length);\n      link = (cap[2] || cap[1]).replace(/\\s+/g, ' ');\n      link = this.links[link.toLowerCase()];\n      if (!link || !link.href) {\n        out += cap[0].charAt(0);\n        src = cap[0].substring(1) + src;\n        continue;\n      }\n      this.inLink = true;\n      out += this.outputLink(cap, link);\n      this.inLink = false;\n      continue;\n    }\n\n    // strong\n    if (cap = this.rules.strong.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));\n      continue;\n    }\n\n    // em\n    if (cap = this.rules.em.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));\n      continue;\n    }\n\n    // code\n    if (cap = this.rules.code.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.codespan(escape(cap[2].trim(), true));\n      continue;\n    }\n\n    // br\n    if (cap = this.rules.br.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.br();\n      continue;\n    }\n\n    // del (gfm)\n    if (cap = this.rules.del.exec(src)) {\n      src = src.substring(cap[0].length);\n      out += this.renderer.del(this.output(cap[1]));\n      continue;\n    }\n\n    // autolink\n    if (cap = this.rules.autolink.exec(src)) {\n      src = src.substring(cap[0].length);\n      if (cap[2] === '@') {\n        text = escape(this.mangle(cap[1]));\n        href = 'mailto:' + text;\n      } else {\n        text = escape(cap[1]);\n        href = text;\n      }\n      out += this.renderer.link(href, null, text);\n      continue;\n    }\n\n    // url (gfm)\n    if (!this.inLink && (cap = this.rules.url.exec(src))) {\n      if (cap[2] === '@') {\n        text = escape(cap[0]);\n        href = 'mailto:' + text;\n      } else {\n        // do extended autolink path validation\n        do {\n          prevCapZero = cap[0];\n          cap[0] = this.rules._backpedal.exec(cap[0])[0];\n        } while (prevCapZero !== cap[0]);\n        text = escape(cap[0]);\n        if (cap[1] === 'www.') {\n          href = 'http://' + text;\n        } else {\n          href = text;\n        }\n      }\n      src = src.substring(cap[0].length);\n      out += this.renderer.link(href, null, text);\n      continue;\n    }\n\n    // text\n    if (cap = this.rules.text.exec(src)) {\n      src = src.substring(cap[0].length);\n      if (this.inRawBlock) {\n        out += this.renderer.text(this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]);\n      } else {\n        out += this.renderer.text(escape(this.smartypants(cap[0])));\n      }\n      continue;\n    }\n\n    if (src) {\n      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));\n    }\n  }\n\n  return out;\n};\n\nInlineLexer.escapes = function(text) {\n  return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;\n};\n\n/**\n * Compile Link\n */\n\nInlineLexer.prototype.outputLink = function(cap, link) {\n  var href = link.href,\n      title = link.title ? escape(link.title) : null;\n\n  return cap[0].charAt(0) !== '!'\n    ? this.renderer.link(href, title, this.output(cap[1]))\n    : this.renderer.image(href, title, escape(cap[1]));\n};\n\n/**\n * Smartypants Transformations\n */\n\nInlineLexer.prototype.smartypants = function(text) {\n  if (!this.options.smartypants) return text;\n  return text\n    // em-dashes\n    .replace(/---/g, '\\u2014')\n    // en-dashes\n    .replace(/--/g, '\\u2013')\n    // opening singles\n    .replace(/(^|[-\\u2014/(\\[{\"\\s])'/g, '$1\\u2018')\n    // closing singles & apostrophes\n    .replace(/'/g, '\\u2019')\n    // opening doubles\n    .replace(/(^|[-\\u2014/(\\[{\\u2018\\s])\"/g, '$1\\u201c')\n    // closing doubles\n    .replace(/\"/g, '\\u201d')\n    // ellipses\n    .replace(/\\.{3}/g, '\\u2026');\n};\n\n/**\n * Mangle Links\n */\n\nInlineLexer.prototype.mangle = function(text) {\n  if (!this.options.mangle) return text;\n  var out = '',\n      l = text.length,\n      i = 0,\n      ch;\n\n  for (; i < l; i++) {\n    ch = text.charCodeAt(i);\n    if (Math.random() > 0.5) {\n      ch = 'x' + ch.toString(16);\n    }\n    out += '&#' + ch + ';';\n  }\n\n  return out;\n};\n\n/**\n * Renderer\n */\n\nfunction Renderer(options) {\n  this.options = options || marked.defaults;\n}\n\nRenderer.prototype.code = function(code, infostring, escaped) {\n  var lang = (infostring || '').match(/\\S*/)[0];\n  if (this.options.highlight) {\n    var out = this.options.highlight(code, lang);\n    if (out != null && out !== code) {\n      escaped = true;\n      code = out;\n    }\n  }\n\n  if (!lang) {\n    return '<pre><code>'\n      + (escaped ? code : escape(code, true))\n      + '</code></pre>';\n  }\n\n  return '<pre><code class=\"'\n    + this.options.langPrefix\n    + escape(lang, true)\n    + '\">'\n    + (escaped ? code : escape(code, true))\n    + '</code></pre>\\n';\n};\n\nRenderer.prototype.blockquote = function(quote) {\n  return '<blockquote>\\n' + quote + '</blockquote>\\n';\n};\n\nRenderer.prototype.html = function(html) {\n  return html;\n};\n\nRenderer.prototype.heading = function(text, level, raw, slugger) {\n  if (this.options.headerIds) {\n    return '<h'\n      + level\n      + ' id=\"'\n      + this.options.headerPrefix\n      + slugger.slug(raw)\n      + '\">'\n      + text\n      + '</h'\n      + level\n      + '>\\n';\n  }\n  // ignore IDs\n  return '<h' + level + '>' + text + '</h' + level + '>\\n';\n};\n\nRenderer.prototype.hr = function() {\n  return this.options.xhtml ? '<hr/>\\n' : '<hr>\\n';\n};\n\nRenderer.prototype.list = function(body, ordered, start) {\n  var type = ordered ? 'ol' : 'ul',\n      startatt = (ordered && start !== 1) ? (' start=\"' + start + '\"') : '';\n  return '<' + type + startatt + '>\\n' + body + '</' + type + '>\\n';\n};\n\nRenderer.prototype.listitem = function(text) {\n  return '<li>' + text + '</li>\\n';\n};\n\nRenderer.prototype.checkbox = function(checked) {\n  return '<input '\n    + (checked ? 'checked=\"\" ' : '')\n    + 'disabled=\"\" type=\"checkbox\"'\n    + (this.options.xhtml ? ' /' : '')\n    + '> ';\n};\n\nRenderer.prototype.paragraph = function(text) {\n  return '<p>' + text + '</p>\\n';\n};\n\nRenderer.prototype.table = function(header, body) {\n  if (body) body = '<tbody>' + body + '</tbody>';\n\n  return '<table>\\n'\n    + '<thead>\\n'\n    + header\n    + '</thead>\\n'\n    + body\n    + '</table>\\n';\n};\n\nRenderer.prototype.tablerow = function(content) {\n  return '<tr>\\n' + content + '</tr>\\n';\n};\n\nRenderer.prototype.tablecell = function(content, flags) {\n  var type = flags.header ? 'th' : 'td';\n  var tag = flags.align\n    ? '<' + type + ' align=\"' + flags.align + '\">'\n    : '<' + type + '>';\n  return tag + content + '</' + type + '>\\n';\n};\n\n// span level renderer\nRenderer.prototype.strong = function(text) {\n  return '<strong>' + text + '</strong>';\n};\n\nRenderer.prototype.em = function(text) {\n  return '<em>' + text + '</em>';\n};\n\nRenderer.prototype.codespan = function(text) {\n  return '<code>' + text + '</code>';\n};\n\nRenderer.prototype.br = function() {\n  return this.options.xhtml ? '<br/>' : '<br>';\n};\n\nRenderer.prototype.del = function(text) {\n  return '<del>' + text + '</del>';\n};\n\nRenderer.prototype.link = function(href, title, text) {\n  href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);\n  if (href === null) {\n    return text;\n  }\n  var out = '<a href=\"' + escape(href) + '\"';\n  if (title) {\n    out += ' title=\"' + title + '\"';\n  }\n  out += '>' + text + '</a>';\n  return out;\n};\n\nRenderer.prototype.image = function(href, title, text) {\n  href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);\n  if (href === null) {\n    return text;\n  }\n\n  var out = '<img src=\"' + href + '\" alt=\"' + text + '\"';\n  if (title) {\n    out += ' title=\"' + title + '\"';\n  }\n  out += this.options.xhtml ? '/>' : '>';\n  return out;\n};\n\nRenderer.prototype.text = function(text) {\n  return text;\n};\n\n/**\n * TextRenderer\n * returns only the textual part of the token\n */\n\nfunction TextRenderer() {}\n\n// no need for block level renderers\n\nTextRenderer.prototype.strong =\nTextRenderer.prototype.em =\nTextRenderer.prototype.codespan =\nTextRenderer.prototype.del =\nTextRenderer.prototype.text = function(text) {\n  return text;\n};\n\nTextRenderer.prototype.link =\nTextRenderer.prototype.image = function(href, title, text) {\n  return '' + text;\n};\n\nTextRenderer.prototype.br = function() {\n  return '';\n};\n\n/**\n * Parsing & Compiling\n */\n\nfunction Parser(options) {\n  this.tokens = [];\n  this.token = null;\n  this.options = options || marked.defaults;\n  this.options.renderer = this.options.renderer || new Renderer();\n  this.renderer = this.options.renderer;\n  this.renderer.options = this.options;\n  this.slugger = new Slugger();\n}\n\n/**\n * Static Parse Method\n */\n\nParser.parse = function(src, options) {\n  var parser = new Parser(options);\n  return parser.parse(src);\n};\n\n/**\n * Parse Loop\n */\n\nParser.prototype.parse = function(src) {\n  this.inline = new InlineLexer(src.links, this.options);\n  // use an InlineLexer with a TextRenderer to extract pure text\n  this.inlineText = new InlineLexer(\n    src.links,\n    merge({}, this.options, { renderer: new TextRenderer() })\n  );\n  this.tokens = src.reverse();\n\n  var out = '';\n  while (this.next()) {\n    out += this.tok();\n  }\n\n  return out;\n};\n\n/**\n * Next Token\n */\n\nParser.prototype.next = function() {\n  this.token = this.tokens.pop();\n  return this.token;\n};\n\n/**\n * Preview Next Token\n */\n\nParser.prototype.peek = function() {\n  return this.tokens[this.tokens.length - 1] || 0;\n};\n\n/**\n * Parse Text Tokens\n */\n\nParser.prototype.parseText = function() {\n  var body = this.token.text;\n\n  while (this.peek().type === 'text') {\n    body += '\\n' + this.next().text;\n  }\n\n  return this.inline.output(body);\n};\n\n/**\n * Parse Current Token\n */\n\nParser.prototype.tok = function() {\n  switch (this.token.type) {\n    case 'space': {\n      return '';\n    }\n    case 'hr': {\n      return this.renderer.hr();\n    }\n    case 'heading': {\n      return this.renderer.heading(\n        this.inline.output(this.token.text),\n        this.token.depth,\n        unescape(this.inlineText.output(this.token.text)),\n        this.slugger);\n    }\n    case 'code': {\n      return this.renderer.code(this.token.text,\n        this.token.lang,\n        this.token.escaped);\n    }\n    case 'table': {\n      var header = '',\n          body = '',\n          i,\n          row,\n          cell,\n          j;\n\n      // header\n      cell = '';\n      for (i = 0; i < this.token.header.length; i++) {\n        cell += this.renderer.tablecell(\n          this.inline.output(this.token.header[i]),\n          { header: true, align: this.token.align[i] }\n        );\n      }\n      header += this.renderer.tablerow(cell);\n\n      for (i = 0; i < this.token.cells.length; i++) {\n        row = this.token.cells[i];\n\n        cell = '';\n        for (j = 0; j < row.length; j++) {\n          cell += this.renderer.tablecell(\n            this.inline.output(row[j]),\n            { header: false, align: this.token.align[j] }\n          );\n        }\n\n        body += this.renderer.tablerow(cell);\n      }\n      return this.renderer.table(header, body);\n    }\n    case 'blockquote_start': {\n      body = '';\n\n      while (this.next().type !== 'blockquote_end') {\n        body += this.tok();\n      }\n\n      return this.renderer.blockquote(body);\n    }\n    case 'list_start': {\n      body = '';\n      var ordered = this.token.ordered,\n          start = this.token.start;\n\n      while (this.next().type !== 'list_end') {\n        body += this.tok();\n      }\n\n      return this.renderer.list(body, ordered, start);\n    }\n    case 'list_item_start': {\n      body = '';\n      var loose = this.token.loose;\n      var checked = this.token.checked;\n      var task = this.token.task;\n\n      if (this.token.task) {\n        body += this.renderer.checkbox(checked);\n      }\n\n      while (this.next().type !== 'list_item_end') {\n        body += !loose && this.token.type === 'text'\n          ? this.parseText()\n          : this.tok();\n      }\n      return this.renderer.listitem(body, task, checked);\n    }\n    case 'html': {\n      // TODO parse inline content if parameter markdown=1\n      return this.renderer.html(this.token.text);\n    }\n    case 'paragraph': {\n      return this.renderer.paragraph(this.inline.output(this.token.text));\n    }\n    case 'text': {\n      return this.renderer.paragraph(this.parseText());\n    }\n    default: {\n      var errMsg = 'Token with \"' + this.token.type + '\" type was not found.';\n      if (this.options.silent) {\n        console.log(errMsg);\n      } else {\n        throw new Error(errMsg);\n      }\n    }\n  }\n};\n\n/**\n * Slugger generates header id\n */\n\nfunction Slugger() {\n  this.seen = {};\n}\n\n/**\n * Convert string to unique id\n */\n\nSlugger.prototype.slug = function(value) {\n  var slug = value\n    .toLowerCase()\n    .trim()\n    .replace(/[\\u2000-\\u206F\\u2E00-\\u2E7F\\\\'!\"#$%&()*+,./:;<=>?@[\\]^`{|}~]/g, '')\n    .replace(/\\s/g, '-');\n\n  if (this.seen.hasOwnProperty(slug)) {\n    var originalSlug = slug;\n    do {\n      this.seen[originalSlug]++;\n      slug = originalSlug + '-' + this.seen[originalSlug];\n    } while (this.seen.hasOwnProperty(slug));\n  }\n  this.seen[slug] = 0;\n\n  return slug;\n};\n\n/**\n * Helpers\n */\n\nfunction escape(html, encode) {\n  if (encode) {\n    if (escape.escapeTest.test(html)) {\n      return html.replace(escape.escapeReplace, function(ch) { return escape.replacements[ch]; });\n    }\n  } else {\n    if (escape.escapeTestNoEncode.test(html)) {\n      return html.replace(escape.escapeReplaceNoEncode, function(ch) { return escape.replacements[ch]; });\n    }\n  }\n\n  return html;\n}\n\nescape.escapeTest = /[&<>\"']/;\nescape.escapeReplace = /[&<>\"']/g;\nescape.replacements = {\n  '&': '&amp;',\n  '<': '&lt;',\n  '>': '&gt;',\n  '\"': '&quot;',\n  \"'\": '&#39;'\n};\n\nescape.escapeTestNoEncode = /[<>\"']|&(?!#?\\w+;)/;\nescape.escapeReplaceNoEncode = /[<>\"']|&(?!#?\\w+;)/g;\n\nfunction unescape(html) {\n  // explicitly match decimal, hex, and named HTML entities\n  return html.replace(/&(#(?:\\d+)|(?:#x[0-9A-Fa-f]+)|(?:\\w+));?/ig, function(_, n) {\n    n = n.toLowerCase();\n    if (n === 'colon') return ':';\n    if (n.charAt(0) === '#') {\n      return n.charAt(1) === 'x'\n        ? String.fromCharCode(parseInt(n.substring(2), 16))\n        : String.fromCharCode(+n.substring(1));\n    }\n    return '';\n  });\n}\n\nfunction edit(regex, opt) {\n  regex = regex.source || regex;\n  opt = opt || '';\n  return {\n    replace: function(name, val) {\n      val = val.source || val;\n      val = val.replace(/(^|[^\\[])\\^/g, '$1');\n      regex = regex.replace(name, val);\n      return this;\n    },\n    getRegex: function() {\n      return new RegExp(regex, opt);\n    }\n  };\n}\n\nfunction cleanUrl(sanitize, base, href) {\n  if (sanitize) {\n    try {\n      var prot = decodeURIComponent(unescape(href))\n        .replace(/[^\\w:]/g, '')\n        .toLowerCase();\n    } catch (e) {\n      return null;\n    }\n    if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {\n      return null;\n    }\n  }\n  if (base && !originIndependentUrl.test(href)) {\n    href = resolveUrl(base, href);\n  }\n  try {\n    href = encodeURI(href).replace(/%25/g, '%');\n  } catch (e) {\n    return null;\n  }\n  return href;\n}\n\nfunction resolveUrl(base, href) {\n  if (!baseUrls[' ' + base]) {\n    // we can ignore everything in base after the last slash of its path component,\n    // but we might need to add _that_\n    // https://tools.ietf.org/html/rfc3986#section-3\n    if (/^[^:]+:\\/*[^/]*$/.test(base)) {\n      baseUrls[' ' + base] = base + '/';\n    } else {\n      baseUrls[' ' + base] = rtrim(base, '/', true);\n    }\n  }\n  base = baseUrls[' ' + base];\n\n  if (href.slice(0, 2) === '//') {\n    return base.replace(/:[\\s\\S]*/, ':') + href;\n  } else if (href.charAt(0) === '/') {\n    return base.replace(/(:\\/*[^/]*)[\\s\\S]*/, '$1') + href;\n  } else {\n    return base + href;\n  }\n}\nvar baseUrls = {};\nvar originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;\n\nfunction noop() {}\nnoop.exec = noop;\n\nfunction merge(obj) {\n  var i = 1,\n      target,\n      key;\n\n  for (; i < arguments.length; i++) {\n    target = arguments[i];\n    for (key in target) {\n      if (Object.prototype.hasOwnProperty.call(target, key)) {\n        obj[key] = target[key];\n      }\n    }\n  }\n\n  return obj;\n}\n\nfunction splitCells(tableRow, count) {\n  // ensure that every cell-delimiting pipe has a space\n  // before it to distinguish it from an escaped pipe\n  var row = tableRow.replace(/\\|/g, function(match, offset, str) {\n        var escaped = false,\n            curr = offset;\n        while (--curr >= 0 && str[curr] === '\\\\') escaped = !escaped;\n        if (escaped) {\n          // odd number of slashes means | is escaped\n          // so we leave it alone\n          return '|';\n        } else {\n          // add space before unescaped |\n          return ' |';\n        }\n      }),\n      cells = row.split(/ \\|/),\n      i = 0;\n\n  if (cells.length > count) {\n    cells.splice(count);\n  } else {\n    while (cells.length < count) cells.push('');\n  }\n\n  for (; i < cells.length; i++) {\n    // leading or trailing whitespace is ignored per the gfm spec\n    cells[i] = cells[i].trim().replace(/\\\\\\|/g, '|');\n  }\n  return cells;\n}\n\n// Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').\n// /c*$/ is vulnerable to REDOS.\n// invert: Remove suffix of non-c chars instead. Default falsey.\nfunction rtrim(str, c, invert) {\n  if (str.length === 0) {\n    return '';\n  }\n\n  // Length of suffix matching the invert condition.\n  var suffLen = 0;\n\n  // Step left until we fail to match the invert condition.\n  while (suffLen < str.length) {\n    var currChar = str.charAt(str.length - suffLen - 1);\n    if (currChar === c && !invert) {\n      suffLen++;\n    } else if (currChar !== c && invert) {\n      suffLen++;\n    } else {\n      break;\n    }\n  }\n\n  return str.substr(0, str.length - suffLen);\n}\n\nfunction findClosingBracket(str, b) {\n  if (str.indexOf(b[1]) === -1) {\n    return -1;\n  }\n  var level = 0;\n  for (var i = 0; i < str.length; i++) {\n    if (str[i] === '\\\\') {\n      i++;\n    } else if (str[i] === b[0]) {\n      level++;\n    } else if (str[i] === b[1]) {\n      level--;\n      if (level < 0) {\n        return i;\n      }\n    }\n  }\n  return -1;\n}\n\nfunction checkSanitizeDeprecation(opt) {\n  if (opt && opt.sanitize && !opt.silent) {\n    console.warn('marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. Read more here: https://marked.js.org/#/USING_ADVANCED.md#options');\n  }\n}\n\n/**\n * Marked\n */\n\nfunction marked(src, opt, callback) {\n  // throw error in case of non string input\n  if (typeof src === 'undefined' || src === null) {\n    throw new Error('marked(): input parameter is undefined or null');\n  }\n  if (typeof src !== 'string') {\n    throw new Error('marked(): input parameter is of type '\n      + Object.prototype.toString.call(src) + ', string expected');\n  }\n\n  if (callback || typeof opt === 'function') {\n    if (!callback) {\n      callback = opt;\n      opt = null;\n    }\n\n    opt = merge({}, marked.defaults, opt || {});\n    checkSanitizeDeprecation(opt);\n\n    var highlight = opt.highlight,\n        tokens,\n        pending,\n        i = 0;\n\n    try {\n      tokens = Lexer.lex(src, opt);\n    } catch (e) {\n      return callback(e);\n    }\n\n    pending = tokens.length;\n\n    var done = function(err) {\n      if (err) {\n        opt.highlight = highlight;\n        return callback(err);\n      }\n\n      var out;\n\n      try {\n        out = Parser.parse(tokens, opt);\n      } catch (e) {\n        err = e;\n      }\n\n      opt.highlight = highlight;\n\n      return err\n        ? callback(err)\n        : callback(null, out);\n    };\n\n    if (!highlight || highlight.length < 3) {\n      return done();\n    }\n\n    delete opt.highlight;\n\n    if (!pending) return done();\n\n    for (; i < tokens.length; i++) {\n      (function(token) {\n        if (token.type !== 'code') {\n          return --pending || done();\n        }\n        return highlight(token.text, token.lang, function(err, code) {\n          if (err) return done(err);\n          if (code == null || code === token.text) {\n            return --pending || done();\n          }\n          token.text = code;\n          token.escaped = true;\n          --pending || done();\n        });\n      })(tokens[i]);\n    }\n\n    return;\n  }\n  try {\n    if (opt) opt = merge({}, marked.defaults, opt);\n    checkSanitizeDeprecation(opt);\n    return Parser.parse(Lexer.lex(src, opt), opt);\n  } catch (e) {\n    e.message += '\\nPlease report this to https://github.com/markedjs/marked.';\n    if ((opt || marked.defaults).silent) {\n      return '<p>An error occurred:</p><pre>'\n        + escape(e.message + '', true)\n        + '</pre>';\n    }\n    throw e;\n  }\n}\n\n/**\n * Options\n */\n\nmarked.options =\nmarked.setOptions = function(opt) {\n  merge(marked.defaults, opt);\n  return marked;\n};\n\nmarked.getDefaults = function() {\n  return {\n    baseUrl: null,\n    breaks: false,\n    gfm: true,\n    headerIds: true,\n    headerPrefix: '',\n    highlight: null,\n    langPrefix: 'language-',\n    mangle: true,\n    pedantic: false,\n    renderer: new Renderer(),\n    sanitize: false,\n    sanitizer: null,\n    silent: false,\n    smartLists: false,\n    smartypants: false,\n    xhtml: false\n  };\n};\n\nmarked.defaults = marked.getDefaults();\n\n/**\n * Expose\n */\n\nmarked.Parser = Parser;\nmarked.parser = Parser.parse;\n\nmarked.Renderer = Renderer;\nmarked.TextRenderer = TextRenderer;\n\nmarked.Lexer = Lexer;\nmarked.lexer = Lexer.lex;\n\nmarked.InlineLexer = InlineLexer;\nmarked.inlineLexer = InlineLexer.output;\n\nmarked.Slugger = Slugger;\n\nmarked.parse = marked;\n\nif (typeof module !== 'undefined' && typeof exports === 'object') {\n  module.exports = marked;\n} else if (typeof define === 'function' && define.amd) {\n  define(function() { return marked; });\n} else {\n  root.marked = marked;\n}\n})(this || (typeof window !== 'undefined' ? window : global));\n","var render = function() {\n  var _vm = this\n  var _h = _vm.$createElement\n  var _c = _vm._self._c || _h\n  return _c(\"div\", [\n    _c(\"div\", { staticClass: \"container\" }, [\n      _vm._m(0),\n      _vm._v(\" \"),\n      _vm._m(1),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        { staticClass: \"form-group\" },\n        [\n          _c(\"markdown-editor\", {\n            ref: \"md\",\n            model: {\n              value: _vm.value,\n              callback: function($$v) {\n                _vm.value = $$v\n              },\n              expression: \"value\"\n            }\n          })\n        ],\n        1\n      ),\n      _vm._v(\" \"),\n      _c(\"div\", { staticClass: \"form-group\" }, [\n        _c(\n          \"button\",\n          { staticClass: \"btn btn-primary\", on: { click: _vm.val } },\n          [_vm._v(\"Change\")]\n        ),\n        _vm._v(\" \"),\n        _c(\n          \"button\",\n          { staticClass: \"btn btn-primary\", on: { click: _vm.replace } },\n          [_vm._v(\"Handle\")]\n        )\n      ]),\n      _vm._v(\" \"),\n      _c(\"div\", { staticClass: \"form-group\" }, [\n        _c(\"pre\", [_vm._v(_vm._s(_vm.value))])\n      ]),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        { staticClass: \"form-group\" },\n        [_c(\"markdown-editor\", { attrs: { height: \"auto\" } })],\n        1\n      ),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        { staticClass: \"form-group\" },\n        [\n          _c(\"markdown-editor\", {\n            attrs: {\n              height: \"auto\",\n              toolbar:\n                \"bold italic heading | image link | numlist bullist code quote | preview fullscreen upload\",\n              buttonClass: \"btn btn-default\",\n              extend: _vm.custom\n            }\n          })\n        ],\n        1\n      ),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        { staticClass: \"form-group\" },\n        [\n          _c(\"markdown-editor\", {\n            attrs: { buttonClass: \"btn btn-sm btn-success\" }\n          })\n        ],\n        1\n      )\n    ]),\n    _vm._v(\" \"),\n    _vm._m(2)\n  ])\n}\nvar staticRenderFns = [\n  function() {\n    var _vm = this\n    var _h = _vm.$createElement\n    var _c = _vm._self._c || _h\n    return _c(\"header\", [\n      _c(\"h1\", [_vm._v(\"v-markdown-editor\")]),\n      _vm._v(\" \"),\n      _c(\"h4\", [_vm._v(\"Markdown Editor component for Vue.js\")])\n    ])\n  },\n  function() {\n    var _vm = this\n    var _h = _vm.$createElement\n    var _c = _vm._self._c || _h\n    return _c(\"div\", { staticClass: \"form-group\" }, [\n      _c(\"h2\", { staticClass: \"text-center\" }, [\n        _c(\"a\", { attrs: { href: \"https://morioh.com\" } }, [\n          _vm._v(\"\\bSocial Network for Developers\")\n        ])\n      ])\n    ])\n  },\n  function() {\n    var _vm = this\n    var _h = _vm.$createElement\n    var _c = _vm._self._c || _h\n    return _c(\"footer\", [\n      _c(\"p\", [\n        _c(\n          \"a\",\n          {\n            staticClass: \"social-icon\",\n            attrs: {\n              href: \"https://github.com/nasa8x/v-markdown-editor\",\n              target: \"_blank\"\n            }\n          },\n          [_c(\"i\", { staticClass: \"fa-3x fab fa-github-square\" })]\n        )\n      ]),\n      _vm._v(\" \"),\n      _c(\"p\", [\n        _vm._v(\"Developed under the \"),\n        _c(\n          \"a\",\n          {\n            attrs: {\n              href: \"https://opensource.org/licenses/MIT\",\n              target: \"_blank\"\n            }\n          },\n          [_vm._v(\"MIT License\")]\n        ),\n        _c(\"br\"),\n        _vm._v(\"\\n            Made Love by Nasa8x\"),\n        _c(\"br\"),\n        _vm._v(\" \"),\n        _c(\"strong\", [_vm._v(\"Donate\")]),\n        _c(\"br\"),\n        _vm._v(\" \"),\n        _c(\n          \"a\",\n          { attrs: { href: \"http://vrl.to/ec5cfbae\", target: \"_blank\" } },\n          [_c(\"img\", { attrs: { src: \"https://i.imgur.com/z0p6RvA.png\" } })]\n        ),\n        _c(\n          \"a\",\n          { attrs: { href: \"http://vrl.to/ec5cfbae\", target: \"_blank\" } },\n          [_c(\"img\", { attrs: { src: \"https://i.imgur.com/bEUNBGz.png\" } })]\n        )\n      ])\n    ])\n  }\n]\nrender._withStripped = true\n\nexport { render, staticRenderFns }","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functioal component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? 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\t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = \"./src/index.js\");\n","<template>\n    <div :class=\"['v-md-container', css,{'v-md-auto-resize': height=='auto', 'v-md-fullscreen': fullScreen }]\">\n        <div class=\"v-md-toolbar\" v-if=\"toolbars.length>0\">\n            <div class=\"btn-group mr-3\" role=\"group\" v-for=\"group in toolbars\">\n                <button type=\"button\" :title=\"i.title\" :class=\"'btn btn-'+theme\" v-on:click=\"command(i.cmd)\"\n                    :disabled=\"preview && !i.ready\" v-for=\"i in group\"><i :class=\"i.ico\"></i></button>\n            </div>\n        </div>\n        <div class=\"v-md-wrapper\" v-on:click=\"editor.focus()\">\n            <textarea class=\"v-md-editor\" :style=\"styles\" :id=\"id\"></textarea>\n            <div class=\"v-md-preview\" v-if=\"preview\" v-html=\"html\"></div>\n        </div>\n\n    </div>\n</template>\n\n\n\n<script>\n\n\n\n    import Markdown from 'markdownparser';\n    import Marked from 'marked';\n\n    import CodeMirror from 'codemirror';\n    import 'codemirror/addon/display/fullscreen.js';\n    import 'codemirror/mode/markdown/markdown.js';\n    import 'codemirror/addon/display/placeholder.js';\n\n\n    export default {\n        props: {\n\n            id: {\n                type: String,\n                default: () => {\n                    return 'v-md-editor-' + Math.random().toString(16).substr(2, 9);\n                }\n            },\n\n            css: { type: String },\n\n            width: {\n                type: String,\n                default: '100%'\n            },\n            height: {\n                type: String,\n                default: '300px'\n            },\n            toolbar: {\n                type: String,\n                default: 'clean redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen'\n            },\n\n\n            extend: {\n                type: Object\n\n            },\n            buttons: {\n                type: Object,\n                default: function () {\n\n                    return {\n\n                        \"clean\": {\n                            cmd: \"clean\",\n                            ico: \"fas fa-remove-format mdi mdi-format-clear\",\n                            title: \"Html to markdown\",\n                            hotkey: 'Shift-Alt-F'\n                        },\n\n                        \"undo\": {\n                            cmd: \"undo\",\n                            ico: \"fas fa-undo mdi mdi-undo-variant\",\n                            title: \"Undo\",\n                            hotkey: 'Ctrl-Z'\n                        },\n\n                        \"redo\": {\n                            cmd: \"redo\",\n                            ico: \"fas fa-redo mdi mdi-redo-variant\",\n                            title: \"Redo\",\n                            hotkey: 'Ctrl-Y'\n                        },\n\n                        \"bullist\": {\n                            cmd: \"bullist\",\n                            ico: \"fas fa-list-ul mdi mdi-format-list-bulleted\",\n                            title: \"Generic List\",\n\n                        },\n                        \"numlist\": {\n                            cmd: \"numlist\",\n                            ico: \"fas fa-list-ol mdi mdi-format-list-numbered\",\n                            title: \"Numbered List\"\n                        },\n\n                        'bold': {\n                            title: 'Bold',\n                            ico: 'fas fa-bold mdi mdi-format-bold',\n                            cmd: 'bold',\n                            hotkey: 'Ctrl-B'\n                        },\n\n                        'italic': {\n                            title: 'Italic',\n                            ico: \"fas fa-italic mdi mdi-format-italic\",\n                            cmd: 'italic',\n                            hotkey: 'Ctrl-I'\n                        },\n\n                        \"strikethrough\": {\n                            cmd: \"strikethrough\",\n                            ico: \"fas fa-strikethrough mdi mdi-format-strikethrough\",\n                            title: \"Strikethrough\"\n                        },\n\n                        'heading': {\n                            title: 'Heading',\n                            ico: \"fas fa-heading mdi mdi-format-header-3\",\n                            cmd: 'heading',\n                            hotkey: 'Ctrl-H'\n                        },\n\n                        'code': {\n                            title: 'Code',\n                            ico: \"fas fa-code mdi mdi-code-tags\",\n                            cmd: 'code',\n                            hotkey: 'Ctrl-X'\n                        },\n                        'quote': {\n                            title: 'Quote',\n                            ico: \"fas fa-quote-left mdi mdi-format-quote-open\",\n                            cmd: 'quote',\n                            hotkey: 'Ctrl-Q'\n                        },\n                        'link': {\n                            title: 'Link',\n                            ico: \"fas fa-link mdi mdi-link\",\n                            cmd: 'link',\n                            hotkey: 'Ctrl-K'\n                        },\n                        'image': {\n                            title: 'Image',\n                            ico: \"fas fa-image mdi mdi-image\",\n                            cmd: 'image',\n                            hotkey: 'Ctrl-P'\n                        },\n                        \"fullscreen\": {\n                            cmd: \"fullscreen\",\n                            ico: \"fas fa-expand mdi mdi-fullscreen\",\n                            title: \"Toggle Fullscreen\",\n                            hotkey: 'F11',\n                            ready: true\n                        },\n                        \"preview\": {\n                            cmd: \"preview\",\n                            ico: \"fas fa-eye mdi mdi-eye\",\n                            title: \"Toggle Preview\",\n                            hotkey: 'Ctrl-P',\n                            ready: true\n                        }\n\n\n                    }\n\n                }\n            },\n\n\n            theme: {\n                type: String,\n                default: 'outline-secondary'\n            },\n\n            value: {\n                type: String,\n                default: '',\n                required: false\n            },\n\n            options: {\n                type: Object,\n                default: function () {\n                    return {\n\n                    }\n                }\n            },\n        },\n\n        data() {\n            return {\n\n                editor: null,\n                preview: false,\n                fullScreen: false,\n                html: '',\n                toolbars: [],                \n\n            }\n        },\n\n        computed: {\n            styles() {\n                return {\n                    width: isNaN(this.width) ? this.width : this.width + '%',\n                    height: isNaN(this.height) ? this.height : this.height + '%'\n                }\n            },\n\n        },\n\n        watch: {\n            value(val) {\n                if (val != this.editor.getValue()) {\n                    this.editor.setValue(val);\n                }\n            }\n        },\n\n        methods: {\n            isEmpty: function (s) {\n                return s === null || s === undefined ? true : /^[\\s\\xa0]*$/.test(s);\n            },\n            isUrl: function (s) {\n                return this.isEmpty(s) ? false : s.match(/((http(s)?):\\/\\/[\\w\\.\\/\\-=?#]+)/gi);\n            },\n            format() {\n                var a = arguments[0];\n                for (var i = 1; i <= arguments.length; i++) {\n                    a = a.replace(/%[a-z]/, arguments[i]);\n                }\n                return a; // Make chainable\n\n            },\n\n\n            _toggleBlock(type, start, end) {\n\n                end = this.isEmpty(end) ? start : end;\n                var ed = this.editor;\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var text;\n                var stat = this.state();\n\n                if (stat[type]) {\n\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    if (type == \"bold\") {\n                        start = start.replace(/(\\*\\*|__)(?![\\s\\S]*(\\*\\*|__))/, \"\");\n                        end = end.replace(/(\\*\\*|__)/, \"\");\n                    } else if (type == \"italic\") {\n                        start = start.replace(/(\\*|_)(?![\\s\\S]*(\\*|_))/, \"\");\n                        end = end.replace(/(\\*|_)/, \"\");\n                    } else if (type == \"strikethrough\") {\n                        start = start.replace(/(\\*\\*|~~)(?![\\s\\S]*(\\*\\*|~~))/, \"\");\n                        end = end.replace(/(\\*\\*|~~)/, \"\");\n                    }\n                    ed.replaceRange(start + end, {\n                        line: startPoint.line,\n                        ch: 0\n                    }, {\n                        line: startPoint.line,\n                        ch: 99999999999999\n                    });\n\n                    if (type == \"bold\" || type == \"strikethrough\") {\n                        startPoint.ch -= 2;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 2;\n                        }\n                    } else if (type == \"italic\") {\n                        startPoint.ch -= 1;\n                        if (startPoint !== endPoint) {\n                            endPoint.ch -= 1;\n                        }\n                    }\n                } else {\n\n                    text = ed.getSelection();\n                    if (type == \"bold\") {\n                        text = text.split(\"**\").join(\"\");\n                        text = text.split(\"__\").join(\"\");\n                    } else if (type == \"italic\") {\n                        text = text.split(\"*\").join(\"\");\n                        text = text.split(\"_\").join(\"\");\n                    } else if (type == \"strikethrough\") {\n                        text = text.split(\"~~\").join(\"\");\n                    }\n                    ed.replaceSelection(start + text + end);\n\n                    startPoint.ch += start.length;\n                    endPoint.ch = startPoint.ch + text.length;\n                }\n\n                // ed.setSelection(startPoint, endPoint);\n            },\n\n            _toggleLine(name) {\n                var ed = this.editor;\n                var stat = this.state();\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                var repl = {\n                    \"quote\": /^(\\s*)\\>\\s+/,\n                    \"bullist\": /^(\\s*)(\\*|\\-|\\+)\\s+/,\n                    \"numlist\": /^(\\s*)\\d+\\.\\s+/\n                };\n                var map = {\n                    \"quote\": \"> \",\n                    \"bullist\": \"* \",\n                    \"numlist\": \"1. \"\n                };\n                for (var i = startPoint.line; i <= endPoint.line; i++) {\n                    (function (i) {\n                        var text = ed.getLine(i);\n                        if (stat[name]) {\n                            text = text.replace(repl[name], \"$1\");\n                        } else {\n                            text = map[name] + text;\n                        }\n                        ed.replaceRange(text, {\n                            line: i, ch: 0\n                        }, {\n                            line: i, ch: 99999999999999\n                        });\n                    })(i);\n                }\n\n            },\n\n            state(pos) {\n                pos = pos || this.editor.getCursor(\"start\");\n                var stat = this.editor.getTokenAt(pos);\n                if (!stat.type) return {};\n\n                var types = stat.type.split(\" \");\n\n                // console.log(types);\n\n                var ret = {},\n                    data, text;\n                for (var i = 0; i < types.length; i++) {\n                    data = types[i];\n                    if (data === \"strong\") {\n                        ret.bold = true;\n                    } else if (data === \"variable-2\") {\n                        text = this.editor.getLine(pos.line);\n                        if (/^\\s*\\d+\\.\\s/.test(text)) {\n                            ret[\"numlist\"] = true;\n                        } else {\n                            ret[\"bullist\"] = true;\n                        }\n                    } else if (data === \"atom\") {\n                        ret.quote = true;\n                    } else if (data === \"em\") {\n                        ret.italic = true;\n                    } else if (data === \"quote\") {\n                        ret.quote = true;\n                    } else if (data === \"strikethrough\") {\n                        ret.strikethrough = true;\n                    } else if (data === \"comment\") {\n                        ret.code = true;\n                    } else if (data === \"link\" || data === \"url\") {\n                        ret.link = true;\n                    } else if (data === \"image\") {\n                        ret.image = true;\n                    } else if (data.match(/^header(\\-[1-6])?$/)) {\n                        ret[data.replace(\"header\", \"heading\")] = true;\n                    }\n                }\n                return ret;\n            },\n\n            _replaceSelection(active, startEnd, val) {\n                var ed = this.editor;\n\n                var text;\n                var start = startEnd[0];\n                var end = startEnd[1];\n                var startPoint = ed.getCursor(\"start\");\n                var endPoint = ed.getCursor(\"end\");\n                if (val) {\n                    Object.keys(val).forEach(key => {\n                        start = start.replace('#' + key + '#', val[key]);\n                        end = end.replace('#' + key + '#', val[key]);\n                    });\n                }\n\n                if (active) {\n                    text = ed.getLine(startPoint.line);\n                    start = text.slice(0, startPoint.ch);\n                    end = text.slice(startPoint.ch);\n                    ed.replaceRange(start + end, { line: startPoint.line, ch: 0 });\n                } else {\n\n                    ed.replaceSelection(start + end);\n                    startPoint.ch += start.length;\n                    if (startPoint !== endPoint) {\n                        endPoint.ch += start.length;\n                    }\n                }\n                //ed.setSelection(startPoint, endPoint);\n\n\n            },\n\n            drawImage(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.image, [\"![#title#](\", '#url# \"#title#\")'], obj);\n            },\n\n            drawLink(obj) {\n                var stat = this.state();\n                this._replaceSelection(stat.link, ['[#title#]', '(#url# \"#title#\")'], obj);\n            },\n\n            command(key) {\n\n                var ed = this.editor;\n                var text = ed.getSelection();\n\n                this.$root.$emit('markdown-editor:' + key, this);\n\n                switch (key) {\n                    case 'undo':\n                        ed.undo();\n                        break;\n\n                    case 'redo':\n                        ed.redo();\n                        break;\n\n                    case 'bold':\n                        this._toggleBlock('bold', '**');\n                        break;\n\n                    case 'italic':\n                        this._toggleBlock('italic', '*');\n                        break;\n\n                    case 'strikethrough':\n                        this._toggleBlock('strikethrough', '~~');\n                        break;\n\n                    case 'code':\n                        this._toggleBlock('code', '```');\n                        break;\n\n\n                    case 'heading':\n                        ed.replaceSelection('\\n### ' + text);\n                        break;\n\n\n                    case 'image':\n\n                        var url = prompt(\"Please enter image url\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : \"This is image title\";\n                            this.drawImage({ title: title, url: url });\n                        }\n                        break;\n\n                    case 'link':\n\n                        var url = prompt(\"Please enter link\", \"https://\");\n                        if (this.isUrl(url)) {\n                            var title = !this.isEmpty(text) ? text : url;\n                            this.drawLink({ title: title, url: url });\n\n                        }\n\n                        break;\n\n                    case 'quote':\n                        this._toggleLine('quote');\n                        break;\n\n                    case 'numlist':\n                        this._toggleLine('numlist');\n                        break;\n\n                    case 'bullist':\n                        this._toggleLine('bullist');\n                        break;\n\n\n                    case 'preview':\n\n                        this.html = Marked(ed.getValue(), { breaks: true });\n                        this.preview = !this.preview;\n\n                        break;\n\n                    case 'fullscreen':\n                        this.fullScreen = !this.fullScreen;\n                        ed.setOption(\"fullScreen\", !ed.getOption(\"fullScreen\"));\n                        break;\n\n                    case 'clean':\n                        ed.replaceSelection(Markdown.parse(text));\n                        break;\n\n                }\n\n            },\n\n            build() {\n\n                if (this.__rendered) return;\n\n                var buttons = Object.assign({}, this.buttons, this.extend);                \n\n                var shortcuts = {};\n\n                this.toolbar.split('|').forEach((t, i) => {\n                    var group = [];\n                    t.toLowerCase().split(/(\\s)/).forEach((b) => {\n\n                        if (!this.isEmpty(b)) {\n\n                            var btn = buttons[b];\n                            if (!this.isEmpty(btn.hotkey)) {\n                                shortcuts[btn.hotkey] = () => this.command(btn.cmd);\n                            }\n                            group.push(btn);\n                        }\n                    });\n\n                    if (group.length > 0)\n                        this.toolbars.push(group);\n\n                });\n\n                \n                var o = Object.assign({ mode: 'markdown', extraKeys: shortcuts }, this.options);\n\n                var ed = this.editor = CodeMirror.fromTextArea(document.getElementById(this.id), o);\n                ed.setValue(this.value);\n                ed.on(\"change\", (ed) => {\n                    this.$emit('input', ed.getValue());\n                });\n\n                this.__rendered = true;\n\n            }\n        },\n        mounted() {\n            this.build();\n        },\n\n      \n        destroyed() {\n\n            this.editor = null;\n        }\n\n    }\n\n</script>","var render = function() {\n  var _vm = this\n  var _h = _vm.$createElement\n  var _c = _vm._self._c || _h\n  return _c(\n    \"div\",\n    {\n      class: [\n        \"v-md-container\",\n        _vm.css,\n        {\n          \"v-md-auto-resize\": _vm.height == \"auto\",\n          \"v-md-fullscreen\": _vm.fullScreen\n        }\n      ]\n    },\n    [\n      _vm.toolbars.length > 0\n        ? _c(\n            \"div\",\n            { staticClass: \"v-md-toolbar\" },\n            _vm._l(_vm.toolbars, function(group) {\n              return _c(\n                \"div\",\n                { staticClass: \"btn-group mr-3\", attrs: { role: \"group\" } },\n                _vm._l(group, function(i) {\n                  return _c(\n                    \"button\",\n                    {\n                      class: \"btn btn-\" + _vm.theme,\n                      attrs: {\n                        type: \"button\",\n                        title: i.title,\n                        disabled: _vm.preview && !i.ready\n                      },\n                      on: {\n                        click: function($event) {\n                          return _vm.command(i.cmd)\n                        }\n                      }\n                    },\n                    [_c(\"i\", { class: i.ico })]\n                  )\n                }),\n                0\n              )\n            }),\n            0\n          )\n        : _vm._e(),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        {\n          staticClass: \"v-md-wrapper\",\n          on: {\n            click: function($event) {\n              return _vm.editor.focus()\n            }\n          }\n        },\n        [\n          _c(\"textarea\", {\n            staticClass: \"v-md-editor\",\n            style: _vm.styles,\n            attrs: { id: _vm.id }\n          }),\n          _vm._v(\" \"),\n          _vm.preview\n            ? _c(\"div\", {\n                staticClass: \"v-md-preview\",\n                domProps: { innerHTML: _vm._s(_vm.html) }\n              })\n            : _vm._e()\n        ]\n      )\n    ]\n  )\n}\nvar staticRenderFns = []\nrender._withStripped = true\n\nexport { render, staticRenderFns }","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functional component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? [].concat(existing, hook)\n        : [hook]\n    }\n  }\n\n  return {\n    exports: scriptExports,\n    options: options\n  }\n}\n","import mod from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=script&lang=js&\"; export default mod; export * from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=script&lang=js&\"","export * from \"-!../node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!../node_modules/vue-loader/lib/index.js??vue-loader-options!./editor.vue?vue&type=template&id=7c83f806&\"","\nimport 'codemirror/lib/codemirror.css';\nimport './index.css';\nimport Editor from './editor.vue';\n\n\nvar MarkdownEditor = {\n    install: function (Vue) {\n        if (Vue.__md_editor_installed) {\n            return;\n        }\n\n        Vue.__md_editor_installed = true;\n\n        Vue.component('markdown-editor', Editor);\n    }\n};\n\nif (typeof window !== 'undefined' && window.Vue) {\n    Vue.use(MarkdownEditor);\n}\n\nexport default MarkdownEditor;","module.exports = require(\"codemirror\");","// extracted by mini-css-extract-plugin","<template>\n    <div>\n        <div class=\"container\">\n\n            <header>\n                <h1>v-markdown-editor</h1>\n                <h4>Markdown Editor component for Vue.js</h4>\n            </header>         \n\n            <div class=\"form-group\">\n                <markdown-editor ref=\"md\" v-model=\"value\"></markdown-editor>\n            </div>\n\n            <div class=\"form-group\">\n                <button @click=\"val\" class=\"btn btn-primary\">Change</button>\n                <button @click=\"replace\" class=\"btn btn-primary\">Handle</button>\n            </div>\n\n            <div class=\"form-group\">\n                <pre><code>{{value}}</code></pre>\n            </div>\n\n\n            <pre><code>&lt;markdown-editor toolbar=&quot;bold italic upload&quot; :extend=&quot;custom&quot;&gt;&lt;/markdown-editor&gt;</code></pre>\n\n            <div class=\"form-group\">\n                <markdown-editor toolbar=\"bold italic upload\" :extend=\"custom\"></markdown-editor>\n            </div>\n\n\n\n            <pre><code>&#x3C;markdown-editor theme=&#x22;success&#x22;&#x3E;&#x3C;/markdown-editor&#x3E;</code></pre>            \n\n            <div class=\"form-group\">                \n                <markdown-editor theme=\"success\"></markdown-editor>\n            </div>\n\n\n            <pre><code>&#x3C;markdown-editor height=\"auto\" toolbar=&#x27;&#x27;&#x3E;&#x3C;/markdown-editor&#x3E;</code></pre>    \n            <div class=\"form-group\">                \n                <markdown-editor height=\"auto\" toolbar=''></markdown-editor>\n            </div>\n\n\n        </div>\n\n\n        <footer>\n\n            <p>\n                <a class=\"social-icon\" href=\"https://github.com/nasa8x/v-markdown-editor\" target=\"_blank\">\n                    <i class=\"fa-3x fab fa-github-square\"></i>\n                </a>\n\n            </p>\n\n            <p>Themed by <a href=\"http://on.morioh.net/96d5d36367\" target=\"_blank\">Morioh Theme</a><br>\n                Made Love by <a href=\"https://morioh.com/@5c22e47440738156a7078a19\">Nasa8x</a>\n\n            </p>\n\n\n        </footer>\n\n    </div>\n</template>\n\n\n<script>\n\n    export default {\n        data() {\n            return {\n                value: 'Hello',\n\n                custom: {\n                    'upload': {\n                        cmd: 'upload',\n                        ico: 'fas fa-cloud',\n                        title: 'Upload File'\n                    }\n                }\n            }\n        },\n\n        methods: {\n            val() {\n                this.value = \"jjkjlkjljlkjlkjlkjlkj\"\n            },           \n\n            replace() {\n                this.$refs.md.editor.replaceSelection(\"Handle editor\");\n            }\n        },\n\n\n        created() {\n            this.$root.$on('markdown-editor:upload', function (md) {\n                md.drawImage({ url: 'https://i.imgur.com/CbCXhBe.png', title: 'this image title' });\n            });\n\n        }\n\n\n    }\n\n</script>","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n\n  CodeMirror.defineOption(\"fullScreen\", false, function(cm, val, old) {\n    if (old == CodeMirror.Init) old = false;\n    if (!old == !val) return;\n    if (val) setFullscreen(cm);\n    else setNormal(cm);\n  });\n\n  function setFullscreen(cm) {\n    var wrap = cm.getWrapperElement();\n    cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,\n                                  width: wrap.style.width, height: wrap.style.height};\n    wrap.style.width = \"\";\n    wrap.style.height = \"auto\";\n    wrap.className += \" CodeMirror-fullscreen\";\n    document.documentElement.style.overflow = \"hidden\";\n    cm.refresh();\n  }\n\n  function setNormal(cm) {\n    var wrap = cm.getWrapperElement();\n    wrap.className = wrap.className.replace(/\\s*CodeMirror-fullscreen\\b/, \"\");\n    document.documentElement.style.overflow = \"\";\n    var info = cm.state.fullScreenRestore;\n    wrap.style.width = info.width; wrap.style.height = info.height;\n    window.scrollTo(info.scrollLeft, info.scrollTop);\n    cm.refresh();\n  }\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  CodeMirror.defineOption(\"placeholder\", \"\", function(cm, val, old) {\n    var prev = old && old != CodeMirror.Init;\n    if (val && !prev) {\n      cm.on(\"blur\", onBlur);\n      cm.on(\"change\", onChange);\n      cm.on(\"swapDoc\", onChange);\n      onChange(cm);\n    } else if (!val && prev) {\n      cm.off(\"blur\", onBlur);\n      cm.off(\"change\", onChange);\n      cm.off(\"swapDoc\", onChange);\n      clearPlaceholder(cm);\n      var wrapper = cm.getWrapperElement();\n      wrapper.className = wrapper.className.replace(\" CodeMirror-empty\", \"\");\n    }\n\n    if (val && !cm.hasFocus()) onBlur(cm);\n  });\n\n  function clearPlaceholder(cm) {\n    if (cm.state.placeholder) {\n      cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);\n      cm.state.placeholder = null;\n    }\n  }\n  function setPlaceholder(cm) {\n    clearPlaceholder(cm);\n    var elt = cm.state.placeholder = document.createElement(\"pre\");\n    elt.style.cssText = \"height: 0; overflow: visible\";\n    elt.style.direction = cm.getOption(\"direction\");\n    elt.className = \"CodeMirror-placeholder CodeMirror-line-like\";\n    var placeHolder = cm.getOption(\"placeholder\")\n    if (typeof placeHolder == \"string\") placeHolder = document.createTextNode(placeHolder)\n    elt.appendChild(placeHolder)\n    cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);\n  }\n\n  function onBlur(cm) {\n    if (isEmpty(cm)) setPlaceholder(cm);\n  }\n  function onChange(cm) {\n    var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);\n    wrapper.className = wrapper.className.replace(\" CodeMirror-empty\", \"\") + (empty ? \" CodeMirror-empty\" : \"\");\n\n    if (empty) setPlaceholder(cm);\n    else clearPlaceholder(cm);\n  }\n\n  function isEmpty(cm) {\n    return (cm.lineCount() === 1) && (cm.getLine(0) === \"\");\n  }\n});\n","// extracted by mini-css-extract-plugin","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n// This is CodeMirror (https://codemirror.net), a code editor\n// implemented in JavaScript on top of the browser's DOM.\n//\n// You can find some technical background for some of the code below\n// at http://marijnhaverbeke.nl/blog/#cm-internals .\n\n(function (global, factory) {\n  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n  typeof define === 'function' && define.amd ? define(factory) :\n  (global = global || self, global.CodeMirror = factory());\n}(this, (function () { 'use strict';\n\n  // Kludges for bugs and behavior differences that can't be feature\n  // detected are enabled based on userAgent etc sniffing.\n  var userAgent = navigator.userAgent;\n  var platform = navigator.platform;\n\n  var gecko = /gecko\\/\\d/i.test(userAgent);\n  var ie_upto10 = /MSIE \\d/.test(userAgent);\n  var ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(userAgent);\n  var edge = /Edge\\/(\\d+)/.exec(userAgent);\n  var ie = ie_upto10 || ie_11up || edge;\n  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);\n  var webkit = !edge && /WebKit\\//.test(userAgent);\n  var qtwebkit = webkit && /Qt\\/\\d+\\.\\d+/.test(userAgent);\n  var chrome = !edge && /Chrome\\//.test(userAgent);\n  var presto = /Opera\\//.test(userAgent);\n  var safari = /Apple Computer/.test(navigator.vendor);\n  var mac_geMountainLion = /Mac OS X 1\\d\\D([8-9]|\\d\\d)\\D/.test(userAgent);\n  var phantom = /PhantomJS/.test(userAgent);\n\n  var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\\/\\w+/.test(userAgent);\n  var android = /Android/.test(userAgent);\n  // This is woefully incomplete. Suggestions for alternative methods welcome.\n  var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);\n  var mac = ios || /Mac/.test(platform);\n  var chromeOS = /\\bCrOS\\b/.test(userAgent);\n  var windows = /win/i.test(platform);\n\n  var presto_version = presto && userAgent.match(/Version\\/(\\d*\\.\\d*)/);\n  if (presto_version) { presto_version = Number(presto_version[1]); }\n  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }\n  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X\n  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));\n  var captureRightClick = gecko || (ie && ie_version >= 9);\n\n  function classTest(cls) { return new RegExp(\"(^|\\\\s)\" + cls + \"(?:$|\\\\s)\\\\s*\") }\n\n  var rmClass = function(node, cls) {\n    var current = node.className;\n    var match = classTest(cls).exec(current);\n    if (match) {\n      var after = current.slice(match.index + match[0].length);\n      node.className = current.slice(0, match.index) + (after ? match[1] + after : \"\");\n    }\n  };\n\n  function removeChildren(e) {\n    for (var count = e.childNodes.length; count > 0; --count)\n      { e.removeChild(e.firstChild); }\n    return e\n  }\n\n  function removeChildrenAndAdd(parent, e) {\n    return removeChildren(parent).appendChild(e)\n  }\n\n  function elt(tag, content, className, style) {\n    var e = document.createElement(tag);\n    if (className) { e.className = className; }\n    if (style) { e.style.cssText = style; }\n    if (typeof content == \"string\") { e.appendChild(document.createTextNode(content)); }\n    else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }\n    return e\n  }\n  // wrapper for elt, which removes the elt from the accessibility tree\n  function eltP(tag, content, className, style) {\n    var e = elt(tag, content, className, style);\n    e.setAttribute(\"role\", \"presentation\");\n    return e\n  }\n\n  var range;\n  if (document.createRange) { range = function(node, start, end, endNode) {\n    var r = document.createRange();\n    r.setEnd(endNode || node, end);\n    r.setStart(node, start);\n    return r\n  }; }\n  else { range = function(node, start, end) {\n    var r = document.body.createTextRange();\n    try { r.moveToElementText(node.parentNode); }\n    catch(e) { return r }\n    r.collapse(true);\n    r.moveEnd(\"character\", end);\n    r.moveStart(\"character\", start);\n    return r\n  }; }\n\n  function contains(parent, child) {\n    if (child.nodeType == 3) // Android browser always returns false when child is a textnode\n      { child = child.parentNode; }\n    if (parent.contains)\n      { return parent.contains(child) }\n    do {\n      if (child.nodeType == 11) { child = child.host; }\n      if (child == parent) { return true }\n    } while (child = child.parentNode)\n  }\n\n  function activeElt() {\n    // IE and Edge may throw an \"Unspecified Error\" when accessing document.activeElement.\n    // IE < 10 will throw when accessed while the page is loading or in an iframe.\n    // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.\n    var activeElement;\n    try {\n      activeElement = document.activeElement;\n    } catch(e) {\n      activeElement = document.body || null;\n    }\n    while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)\n      { activeElement = activeElement.shadowRoot.activeElement; }\n    return activeElement\n  }\n\n  function addClass(node, cls) {\n    var current = node.className;\n    if (!classTest(cls).test(current)) { node.className += (current ? \" \" : \"\") + cls; }\n  }\n  function joinClasses(a, b) {\n    var as = a.split(\" \");\n    for (var i = 0; i < as.length; i++)\n      { if (as[i] && !classTest(as[i]).test(b)) { b += \" \" + as[i]; } }\n    return b\n  }\n\n  var selectInput = function(node) { node.select(); };\n  if (ios) // Mobile Safari apparently has a bug where select() is broken.\n    { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }\n  else if (ie) // Suppress mysterious IE10 errors\n    { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }\n\n  function bind(f) {\n    var args = Array.prototype.slice.call(arguments, 1);\n    return function(){return f.apply(null, args)}\n  }\n\n  function copyObj(obj, target, overwrite) {\n    if (!target) { target = {}; }\n    for (var prop in obj)\n      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))\n        { target[prop] = obj[prop]; } }\n    return target\n  }\n\n  // Counts the column offset in a string, taking tabs into account.\n  // Used mostly to find indentation.\n  function countColumn(string, end, tabSize, startIndex, startValue) {\n    if (end == null) {\n      end = string.search(/[^\\s\\u00a0]/);\n      if (end == -1) { end = string.length; }\n    }\n    for (var i = startIndex || 0, n = startValue || 0;;) {\n      var nextTab = string.indexOf(\"\\t\", i);\n      if (nextTab < 0 || nextTab >= end)\n        { return n + (end - i) }\n      n += nextTab - i;\n      n += tabSize - (n % tabSize);\n      i = nextTab + 1;\n    }\n  }\n\n  var Delayed = function() {\n    this.id = null;\n    this.f = null;\n    this.time = 0;\n    this.handler = bind(this.onTimeout, this);\n  };\n  Delayed.prototype.onTimeout = function (self) {\n    self.id = 0;\n    if (self.time <= +new Date) {\n      self.f();\n    } else {\n      setTimeout(self.handler, self.time - +new Date);\n    }\n  };\n  Delayed.prototype.set = function (ms, f) {\n    this.f = f;\n    var time = +new Date + ms;\n    if (!this.id || time < this.time) {\n      clearTimeout(this.id);\n      this.id = setTimeout(this.handler, ms);\n      this.time = time;\n    }\n  };\n\n  function indexOf(array, elt) {\n    for (var i = 0; i < array.length; ++i)\n      { if (array[i] == elt) { return i } }\n    return -1\n  }\n\n  // Number of pixels added to scroller and sizer to hide scrollbar\n  var scrollerGap = 30;\n\n  // Returned or thrown by various protocols to signal 'I'm not\n  // handling this'.\n  var Pass = {toString: function(){return \"CodeMirror.Pass\"}};\n\n  // Reused option objects for setSelection & friends\n  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: \"*mouse\"}, sel_move = {origin: \"+move\"};\n\n  // The inverse of countColumn -- find the offset that corresponds to\n  // a particular column.\n  function findColumn(string, goal, tabSize) {\n    for (var pos = 0, col = 0;;) {\n      var nextTab = string.indexOf(\"\\t\", pos);\n      if (nextTab == -1) { nextTab = string.length; }\n      var skipped = nextTab - pos;\n      if (nextTab == string.length || col + skipped >= goal)\n        { return pos + Math.min(skipped, goal - col) }\n      col += nextTab - pos;\n      col += tabSize - (col % tabSize);\n      pos = nextTab + 1;\n      if (col >= goal) { return pos }\n    }\n  }\n\n  var spaceStrs = [\"\"];\n  function spaceStr(n) {\n    while (spaceStrs.length <= n)\n      { spaceStrs.push(lst(spaceStrs) + \" \"); }\n    return spaceStrs[n]\n  }\n\n  function lst(arr) { return arr[arr.length-1] }\n\n  function map(array, f) {\n    var out = [];\n    for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }\n    return out\n  }\n\n  function insertSorted(array, value, score) {\n    var pos = 0, priority = score(value);\n    while (pos < array.length && score(array[pos]) <= priority) { pos++; }\n    array.splice(pos, 0, value);\n  }\n\n  function nothing() {}\n\n  function createObj(base, props) {\n    var inst;\n    if (Object.create) {\n      inst = Object.create(base);\n    } else {\n      nothing.prototype = base;\n      inst = new nothing();\n    }\n    if (props) { copyObj(props, inst); }\n    return inst\n  }\n\n  var nonASCIISingleCaseWordChar = /[\\u00df\\u0587\\u0590-\\u05f4\\u0600-\\u06ff\\u3040-\\u309f\\u30a0-\\u30ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\uac00-\\ud7af]/;\n  function isWordCharBasic(ch) {\n    return /\\w/.test(ch) || ch > \"\\x80\" &&\n      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))\n  }\n  function isWordChar(ch, helper) {\n    if (!helper) { return isWordCharBasic(ch) }\n    if (helper.source.indexOf(\"\\\\w\") > -1 && isWordCharBasic(ch)) { return true }\n    return helper.test(ch)\n  }\n\n  function isEmpty(obj) {\n    for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }\n    return true\n  }\n\n  // Extending unicode characters. A series of a non-extending char +\n  // any number of extending chars is treated as a single unit as far\n  // as editing and measuring is concerned. This is not fully correct,\n  // since some scripts/fonts/browsers also treat other configurations\n  // of code points as a group.\n  var extendingChars = /[\\u0300-\\u036f\\u0483-\\u0489\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u064b-\\u065e\\u0670\\u06d6-\\u06dc\\u06de-\\u06e4\\u06e7\\u06e8\\u06ea-\\u06ed\\u0711\\u0730-\\u074a\\u07a6-\\u07b0\\u07eb-\\u07f3\\u0816-\\u0819\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0900-\\u0902\\u093c\\u0941-\\u0948\\u094d\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09bc\\u09be\\u09c1-\\u09c4\\u09cd\\u09d7\\u09e2\\u09e3\\u0a01\\u0a02\\u0a3c\\u0a41\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a70\\u0a71\\u0a75\\u0a81\\u0a82\\u0abc\\u0ac1-\\u0ac5\\u0ac7\\u0ac8\\u0acd\\u0ae2\\u0ae3\\u0b01\\u0b3c\\u0b3e\\u0b3f\\u0b41-\\u0b44\\u0b4d\\u0b56\\u0b57\\u0b62\\u0b63\\u0b82\\u0bbe\\u0bc0\\u0bcd\\u0bd7\\u0c3e-\\u0c40\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62\\u0c63\\u0cbc\\u0cbf\\u0cc2\\u0cc6\\u0ccc\\u0ccd\\u0cd5\\u0cd6\\u0ce2\\u0ce3\\u0d3e\\u0d41-\\u0d44\\u0d4d\\u0d57\\u0d62\\u0d63\\u0dca\\u0dcf\\u0dd2-\\u0dd4\\u0dd6\\u0ddf\\u0e31\\u0e34-\\u0e3a\\u0e47-\\u0e4e\\u0eb1\\u0eb4-\\u0eb9\\u0ebb\\u0ebc\\u0ec8-\\u0ecd\\u0f18\\u0f19\\u0f35\\u0f37\\u0f39\\u0f71-\\u0f7e\\u0f80-\\u0f84\\u0f86\\u0f87\\u0f90-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u102d-\\u1030\\u1032-\\u1037\\u1039\\u103a\\u103d\\u103e\\u1058\\u1059\\u105e-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108d\\u109d\\u135f\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17b7-\\u17bd\\u17c6\\u17c9-\\u17d3\\u17dd\\u180b-\\u180d\\u18a9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193b\\u1a17\\u1a18\\u1a56\\u1a58-\\u1a5e\\u1a60\\u1a62\\u1a65-\\u1a6c\\u1a73-\\u1a7c\\u1a7f\\u1b00-\\u1b03\\u1b34\\u1b36-\\u1b3a\\u1b3c\\u1b42\\u1b6b-\\u1b73\\u1b80\\u1b81\\u1ba2-\\u1ba5\\u1ba8\\u1ba9\\u1c2c-\\u1c33\\u1c36\\u1c37\\u1cd0-\\u1cd2\\u1cd4-\\u1ce0\\u1ce2-\\u1ce8\\u1ced\\u1dc0-\\u1de6\\u1dfd-\\u1dff\\u200c\\u200d\\u20d0-\\u20f0\\u2cef-\\u2cf1\\u2de0-\\u2dff\\u302a-\\u302f\\u3099\\u309a\\ua66f-\\ua672\\ua67c\\ua67d\\ua6f0\\ua6f1\\ua802\\ua806\\ua80b\\ua825\\ua826\\ua8c4\\ua8e0-\\ua8f1\\ua926-\\ua92d\\ua947-\\ua951\\ua980-\\ua982\\ua9b3\\ua9b6-\\ua9b9\\ua9bc\\uaa29-\\uaa2e\\uaa31\\uaa32\\uaa35\\uaa36\\uaa43\\uaa4c\\uaab0\\uaab2-\\uaab4\\uaab7\\uaab8\\uaabe\\uaabf\\uaac1\\uabe5\\uabe8\\uabed\\udc00-\\udfff\\ufb1e\\ufe00-\\ufe0f\\ufe20-\\ufe26\\uff9e\\uff9f]/;\n  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }\n\n  // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.\n  function skipExtendingChars(str, pos, dir) {\n    while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }\n    return pos\n  }\n\n  // Returns the value from the range [`from`; `to`] that satisfies\n  // `pred` and is closest to `from`. Assumes that at least `to`\n  // satisfies `pred`. Supports `from` being greater than `to`.\n  function findFirst(pred, from, to) {\n    // At any point we are certain `to` satisfies `pred`, don't know\n    // whether `from` does.\n    var dir = from > to ? -1 : 1;\n    for (;;) {\n      if (from == to) { return from }\n      var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);\n      if (mid == from) { return pred(mid) ? from : to }\n      if (pred(mid)) { to = mid; }\n      else { from = mid + dir; }\n    }\n  }\n\n  // BIDI HELPERS\n\n  function iterateBidiSections(order, from, to, f) {\n    if (!order) { return f(from, to, \"ltr\", 0) }\n    var found = false;\n    for (var i = 0; i < order.length; ++i) {\n      var part = order[i];\n      if (part.from < to && part.to > from || from == to && part.to == from) {\n        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? \"rtl\" : \"ltr\", i);\n        found = true;\n      }\n    }\n    if (!found) { f(from, to, \"ltr\"); }\n  }\n\n  var bidiOther = null;\n  function getBidiPartAt(order, ch, sticky) {\n    var found;\n    bidiOther = null;\n    for (var i = 0; i < order.length; ++i) {\n      var cur = order[i];\n      if (cur.from < ch && cur.to > ch) { return i }\n      if (cur.to == ch) {\n        if (cur.from != cur.to && sticky == \"before\") { found = i; }\n        else { bidiOther = i; }\n      }\n      if (cur.from == ch) {\n        if (cur.from != cur.to && sticky != \"before\") { found = i; }\n        else { bidiOther = i; }\n      }\n    }\n    return found != null ? found : bidiOther\n  }\n\n  // Bidirectional ordering algorithm\n  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm\n  // that this (partially) implements.\n\n  // One-char codes used for character types:\n  // L (L):   Left-to-Right\n  // R (R):   Right-to-Left\n  // r (AL):  Right-to-Left Arabic\n  // 1 (EN):  European Number\n  // + (ES):  European Number Separator\n  // % (ET):  European Number Terminator\n  // n (AN):  Arabic Number\n  // , (CS):  Common Number Separator\n  // m (NSM): Non-Spacing Mark\n  // b (BN):  Boundary Neutral\n  // s (B):   Paragraph Separator\n  // t (S):   Segment Separator\n  // w (WS):  Whitespace\n  // N (ON):  Other Neutrals\n\n  // Returns null if characters are ordered as they appear\n  // (left-to-right), or an array of sections ({from, to, level}\n  // objects) in the order in which they occur visually.\n  var bidiOrdering = (function() {\n    // Character types for codepoints 0 to 0xff\n    var lowTypes = \"bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN\";\n    // Character types for codepoints 0x600 to 0x6f9\n    var arabicTypes = \"nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111\";\n    function charType(code) {\n      if (code <= 0xf7) { return lowTypes.charAt(code) }\n      else if (0x590 <= code && code <= 0x5f4) { return \"R\" }\n      else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }\n      else if (0x6ee <= code && code <= 0x8ac) { return \"r\" }\n      else if (0x2000 <= code && code <= 0x200b) { return \"w\" }\n      else if (code == 0x200c) { return \"b\" }\n      else { return \"L\" }\n    }\n\n    var bidiRE = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\n    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;\n\n    function BidiSpan(level, from, to) {\n      this.level = level;\n      this.from = from; this.to = to;\n    }\n\n    return function(str, direction) {\n      var outerType = direction == \"ltr\" ? \"L\" : \"R\";\n\n      if (str.length == 0 || direction == \"ltr\" && !bidiRE.test(str)) { return false }\n      var len = str.length, types = [];\n      for (var i = 0; i < len; ++i)\n        { types.push(charType(str.charCodeAt(i))); }\n\n      // W1. Examine each non-spacing mark (NSM) in the level run, and\n      // change the type of the NSM to the type of the previous\n      // character. If the NSM is at the start of the level run, it will\n      // get the type of sor.\n      for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {\n        var type = types[i$1];\n        if (type == \"m\") { types[i$1] = prev; }\n        else { prev = type; }\n      }\n\n      // W2. Search backwards from each instance of a European number\n      // until the first strong type (R, L, AL, or sor) is found. If an\n      // AL is found, change the type of the European number to Arabic\n      // number.\n      // W3. Change all ALs to R.\n      for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {\n        var type$1 = types[i$2];\n        if (type$1 == \"1\" && cur == \"r\") { types[i$2] = \"n\"; }\n        else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == \"r\") { types[i$2] = \"R\"; } }\n      }\n\n      // W4. A single European separator between two European numbers\n      // changes to a European number. A single common separator between\n      // two numbers of the same type changes to that type.\n      for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {\n        var type$2 = types[i$3];\n        if (type$2 == \"+\" && prev$1 == \"1\" && types[i$3+1] == \"1\") { types[i$3] = \"1\"; }\n        else if (type$2 == \",\" && prev$1 == types[i$3+1] &&\n                 (prev$1 == \"1\" || prev$1 == \"n\")) { types[i$3] = prev$1; }\n        prev$1 = type$2;\n      }\n\n      // W5. A sequence of European terminators adjacent to European\n      // numbers changes to all European numbers.\n      // W6. Otherwise, separators and terminators change to Other\n      // Neutral.\n      for (var i$4 = 0; i$4 < len; ++i$4) {\n        var type$3 = types[i$4];\n        if (type$3 == \",\") { types[i$4] = \"N\"; }\n        else if (type$3 == \"%\") {\n          var end = (void 0);\n          for (end = i$4 + 1; end < len && types[end] == \"%\"; ++end) {}\n          var replace = (i$4 && types[i$4-1] == \"!\") || (end < len && types[end] == \"1\") ? \"1\" : \"N\";\n          for (var j = i$4; j < end; ++j) { types[j] = replace; }\n          i$4 = end - 1;\n        }\n      }\n\n      // W7. Search backwards from each instance of a European number\n      // until the first strong type (R, L, or sor) is found. If an L is\n      // found, then change the type of the European number to L.\n      for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {\n        var type$4 = types[i$5];\n        if (cur$1 == \"L\" && type$4 == \"1\") { types[i$5] = \"L\"; }\n        else if (isStrong.test(type$4)) { cur$1 = type$4; }\n      }\n\n      // N1. A sequence of neutrals takes the direction of the\n      // surrounding strong text if the text on both sides has the same\n      // direction. European and Arabic numbers act as if they were R in\n      // terms of their influence on neutrals. Start-of-level-run (sor)\n      // and end-of-level-run (eor) are used at level run boundaries.\n      // N2. Any remaining neutrals take the embedding direction.\n      for (var i$6 = 0; i$6 < len; ++i$6) {\n        if (isNeutral.test(types[i$6])) {\n          var end$1 = (void 0);\n          for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}\n          var before = (i$6 ? types[i$6-1] : outerType) == \"L\";\n          var after = (end$1 < len ? types[end$1] : outerType) == \"L\";\n          var replace$1 = before == after ? (before ? \"L\" : \"R\") : outerType;\n          for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }\n          i$6 = end$1 - 1;\n        }\n      }\n\n      // Here we depart from the documented algorithm, in order to avoid\n      // building up an actual levels array. Since there are only three\n      // levels (0, 1, 2) in an implementation that doesn't take\n      // explicit embedding into account, we can build up the order on\n      // the fly, without following the level-based algorithm.\n      var order = [], m;\n      for (var i$7 = 0; i$7 < len;) {\n        if (countsAsLeft.test(types[i$7])) {\n          var start = i$7;\n          for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}\n          order.push(new BidiSpan(0, start, i$7));\n        } else {\n          var pos = i$7, at = order.length, isRTL = direction == \"rtl\" ? 1 : 0;\n          for (++i$7; i$7 < len && types[i$7] != \"L\"; ++i$7) {}\n          for (var j$2 = pos; j$2 < i$7;) {\n            if (countsAsNum.test(types[j$2])) {\n              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }\n              var nstart = j$2;\n              for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}\n              order.splice(at, 0, new BidiSpan(2, nstart, j$2));\n              at += isRTL;\n              pos = j$2;\n            } else { ++j$2; }\n          }\n          if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }\n        }\n      }\n      if (direction == \"ltr\") {\n        if (order[0].level == 1 && (m = str.match(/^\\s+/))) {\n          order[0].from = m[0].length;\n          order.unshift(new BidiSpan(0, 0, m[0].length));\n        }\n        if (lst(order).level == 1 && (m = str.match(/\\s+$/))) {\n          lst(order).to -= m[0].length;\n          order.push(new BidiSpan(0, len - m[0].length, len));\n        }\n      }\n\n      return direction == \"rtl\" ? order.reverse() : order\n    }\n  })();\n\n  // Get the bidi ordering for the given line (and cache it). Returns\n  // false for lines that are fully left-to-right, and an array of\n  // BidiSpan objects otherwise.\n  function getOrder(line, direction) {\n    var order = line.order;\n    if (order == null) { order = line.order = bidiOrdering(line.text, direction); }\n    return order\n  }\n\n  // EVENT HANDLING\n\n  // Lightweight event framework. on/off also work on DOM nodes,\n  // registering native DOM handlers.\n\n  var noHandlers = [];\n\n  var on = function(emitter, type, f) {\n    if (emitter.addEventListener) {\n      emitter.addEventListener(type, f, false);\n    } else if (emitter.attachEvent) {\n      emitter.attachEvent(\"on\" + type, f);\n    } else {\n      var map = emitter._handlers || (emitter._handlers = {});\n      map[type] = (map[type] || noHandlers).concat(f);\n    }\n  };\n\n  function getHandlers(emitter, type) {\n    return emitter._handlers && emitter._handlers[type] || noHandlers\n  }\n\n  function off(emitter, type, f) {\n    if (emitter.removeEventListener) {\n      emitter.removeEventListener(type, f, false);\n    } else if (emitter.detachEvent) {\n      emitter.detachEvent(\"on\" + type, f);\n    } else {\n      var map = emitter._handlers, arr = map && map[type];\n      if (arr) {\n        var index = indexOf(arr, f);\n        if (index > -1)\n          { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }\n      }\n    }\n  }\n\n  function signal(emitter, type /*, values...*/) {\n    var handlers = getHandlers(emitter, type);\n    if (!handlers.length) { return }\n    var args = Array.prototype.slice.call(arguments, 2);\n    for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }\n  }\n\n  // The DOM events that CodeMirror handles can be overridden by\n  // registering a (non-DOM) handler on the editor for the event name,\n  // and preventDefault-ing the event in that handler.\n  function signalDOMEvent(cm, e, override) {\n    if (typeof e == \"string\")\n      { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }\n    signal(cm, override || e.type, cm, e);\n    return e_defaultPrevented(e) || e.codemirrorIgnore\n  }\n\n  function signalCursorActivity(cm) {\n    var arr = cm._handlers && cm._handlers.cursorActivity;\n    if (!arr) { return }\n    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);\n    for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)\n      { set.push(arr[i]); } }\n  }\n\n  function hasHandler(emitter, type) {\n    return getHandlers(emitter, type).length > 0\n  }\n\n  // Add on and off methods to a constructor's prototype, to make\n  // registering events on such objects more convenient.\n  function eventMixin(ctor) {\n    ctor.prototype.on = function(type, f) {on(this, type, f);};\n    ctor.prototype.off = function(type, f) {off(this, type, f);};\n  }\n\n  // Due to the fact that we still support jurassic IE versions, some\n  // compatibility wrappers are needed.\n\n  function e_preventDefault(e) {\n    if (e.preventDefault) { e.preventDefault(); }\n    else { e.returnValue = false; }\n  }\n  function e_stopPropagation(e) {\n    if (e.stopPropagation) { e.stopPropagation(); }\n    else { e.cancelBubble = true; }\n  }\n  function e_defaultPrevented(e) {\n    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false\n  }\n  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}\n\n  function e_target(e) {return e.target || e.srcElement}\n  function e_button(e) {\n    var b = e.which;\n    if (b == null) {\n      if (e.button & 1) { b = 1; }\n      else if (e.button & 2) { b = 3; }\n      else if (e.button & 4) { b = 2; }\n    }\n    if (mac && e.ctrlKey && b == 1) { b = 3; }\n    return b\n  }\n\n  // Detect drag-and-drop\n  var dragAndDrop = function() {\n    // There is *some* kind of drag-and-drop support in IE6-8, but I\n    // couldn't get it to work yet.\n    if (ie && ie_version < 9) { return false }\n    var div = elt('div');\n    return \"draggable\" in div || \"dragDrop\" in div\n  }();\n\n  var zwspSupported;\n  function zeroWidthElement(measure) {\n    if (zwspSupported == null) {\n      var test = elt(\"span\", \"\\u200b\");\n      removeChildrenAndAdd(measure, elt(\"span\", [test, document.createTextNode(\"x\")]));\n      if (measure.firstChild.offsetHeight != 0)\n        { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }\n    }\n    var node = zwspSupported ? elt(\"span\", \"\\u200b\") :\n      elt(\"span\", \"\\u00a0\", null, \"display: inline-block; width: 1px; margin-right: -1px\");\n    node.setAttribute(\"cm-text\", \"\");\n    return node\n  }\n\n  // Feature-detect IE's crummy client rect reporting for bidi text\n  var badBidiRects;\n  function hasBadBidiRects(measure) {\n    if (badBidiRects != null) { return badBidiRects }\n    var txt = removeChildrenAndAdd(measure, document.createTextNode(\"A\\u062eA\"));\n    var r0 = range(txt, 0, 1).getBoundingClientRect();\n    var r1 = range(txt, 1, 2).getBoundingClientRect();\n    removeChildren(measure);\n    if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)\n    return badBidiRects = (r1.right - r0.right < 3)\n  }\n\n  // See if \"\".split is the broken IE version, if so, provide an\n  // alternative way to split lines.\n  var splitLinesAuto = \"\\n\\nb\".split(/\\n/).length != 3 ? function (string) {\n    var pos = 0, result = [], l = string.length;\n    while (pos <= l) {\n      var nl = string.indexOf(\"\\n\", pos);\n      if (nl == -1) { nl = string.length; }\n      var line = string.slice(pos, string.charAt(nl - 1) == \"\\r\" ? nl - 1 : nl);\n      var rt = line.indexOf(\"\\r\");\n      if (rt != -1) {\n        result.push(line.slice(0, rt));\n        pos += rt + 1;\n      } else {\n        result.push(line);\n        pos = nl + 1;\n      }\n    }\n    return result\n  } : function (string) { return string.split(/\\r\\n?|\\n/); };\n\n  var hasSelection = window.getSelection ? function (te) {\n    try { return te.selectionStart != te.selectionEnd }\n    catch(e) { return false }\n  } : function (te) {\n    var range;\n    try {range = te.ownerDocument.selection.createRange();}\n    catch(e) {}\n    if (!range || range.parentElement() != te) { return false }\n    return range.compareEndPoints(\"StartToEnd\", range) != 0\n  };\n\n  var hasCopyEvent = (function () {\n    var e = elt(\"div\");\n    if (\"oncopy\" in e) { return true }\n    e.setAttribute(\"oncopy\", \"return;\");\n    return typeof e.oncopy == \"function\"\n  })();\n\n  var badZoomedRects = null;\n  function hasBadZoomedRects(measure) {\n    if (badZoomedRects != null) { return badZoomedRects }\n    var node = removeChildrenAndAdd(measure, elt(\"span\", \"x\"));\n    var normal = node.getBoundingClientRect();\n    var fromRange = range(node, 0, 1).getBoundingClientRect();\n    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1\n  }\n\n  // Known modes, by name and by MIME\n  var modes = {}, mimeModes = {};\n\n  // Extra arguments are stored as the mode's dependencies, which is\n  // used by (legacy) mechanisms like loadmode.js to automatically\n  // load a mode. (Preferred mechanism is the require/define calls.)\n  function defineMode(name, mode) {\n    if (arguments.length > 2)\n      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }\n    modes[name] = mode;\n  }\n\n  function defineMIME(mime, spec) {\n    mimeModes[mime] = spec;\n  }\n\n  // Given a MIME type, a {name, ...options} config object, or a name\n  // string, return a mode config object.\n  function resolveMode(spec) {\n    if (typeof spec == \"string\" && mimeModes.hasOwnProperty(spec)) {\n      spec = mimeModes[spec];\n    } else if (spec && typeof spec.name == \"string\" && mimeModes.hasOwnProperty(spec.name)) {\n      var found = mimeModes[spec.name];\n      if (typeof found == \"string\") { found = {name: found}; }\n      spec = createObj(found, spec);\n      spec.name = found.name;\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+xml$/.test(spec)) {\n      return resolveMode(\"application/xml\")\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+json$/.test(spec)) {\n      return resolveMode(\"application/json\")\n    }\n    if (typeof spec == \"string\") { return {name: spec} }\n    else { return spec || {name: \"null\"} }\n  }\n\n  // Given a mode spec (anything that resolveMode accepts), find and\n  // initialize an actual mode object.\n  function getMode(options, spec) {\n    spec = resolveMode(spec);\n    var mfactory = modes[spec.name];\n    if (!mfactory) { return getMode(options, \"text/plain\") }\n    var modeObj = mfactory(options, spec);\n    if (modeExtensions.hasOwnProperty(spec.name)) {\n      var exts = modeExtensions[spec.name];\n      for (var prop in exts) {\n        if (!exts.hasOwnProperty(prop)) { continue }\n        if (modeObj.hasOwnProperty(prop)) { modeObj[\"_\" + prop] = modeObj[prop]; }\n        modeObj[prop] = exts[prop];\n      }\n    }\n    modeObj.name = spec.name;\n    if (spec.helperType) { modeObj.helperType = spec.helperType; }\n    if (spec.modeProps) { for (var prop$1 in spec.modeProps)\n      { modeObj[prop$1] = spec.modeProps[prop$1]; } }\n\n    return modeObj\n  }\n\n  // This can be used to attach properties to mode objects from\n  // outside the actual mode definition.\n  var modeExtensions = {};\n  function extendMode(mode, properties) {\n    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});\n    copyObj(properties, exts);\n  }\n\n  function copyState(mode, state) {\n    if (state === true) { return state }\n    if (mode.copyState) { return mode.copyState(state) }\n    var nstate = {};\n    for (var n in state) {\n      var val = state[n];\n      if (val instanceof Array) { val = val.concat([]); }\n      nstate[n] = val;\n    }\n    return nstate\n  }\n\n  // Given a mode and a state (for that mode), find the inner mode and\n  // state at the position that the state refers to.\n  function innerMode(mode, state) {\n    var info;\n    while (mode.innerMode) {\n      info = mode.innerMode(state);\n      if (!info || info.mode == mode) { break }\n      state = info.state;\n      mode = info.mode;\n    }\n    return info || {mode: mode, state: state}\n  }\n\n  function startState(mode, a1, a2) {\n    return mode.startState ? mode.startState(a1, a2) : true\n  }\n\n  // STRING STREAM\n\n  // Fed to the mode parsers, provides helper functions to make\n  // parsers more succinct.\n\n  var StringStream = function(string, tabSize, lineOracle) {\n    this.pos = this.start = 0;\n    this.string = string;\n    this.tabSize = tabSize || 8;\n    this.lastColumnPos = this.lastColumnValue = 0;\n    this.lineStart = 0;\n    this.lineOracle = lineOracle;\n  };\n\n  StringStream.prototype.eol = function () {return this.pos >= this.string.length};\n  StringStream.prototype.sol = function () {return this.pos == this.lineStart};\n  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};\n  StringStream.prototype.next = function () {\n    if (this.pos < this.string.length)\n      { return this.string.charAt(this.pos++) }\n  };\n  StringStream.prototype.eat = function (match) {\n    var ch = this.string.charAt(this.pos);\n    var ok;\n    if (typeof match == \"string\") { ok = ch == match; }\n    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }\n    if (ok) {++this.pos; return ch}\n  };\n  StringStream.prototype.eatWhile = function (match) {\n    var start = this.pos;\n    while (this.eat(match)){}\n    return this.pos > start\n  };\n  StringStream.prototype.eatSpace = function () {\n    var start = this.pos;\n    while (/[\\s\\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }\n    return this.pos > start\n  };\n  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};\n  StringStream.prototype.skipTo = function (ch) {\n    var found = this.string.indexOf(ch, this.pos);\n    if (found > -1) {this.pos = found; return true}\n  };\n  StringStream.prototype.backUp = function (n) {this.pos -= n;};\n  StringStream.prototype.column = function () {\n    if (this.lastColumnPos < this.start) {\n      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);\n      this.lastColumnPos = this.start;\n    }\n    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n  };\n  StringStream.prototype.indentation = function () {\n    return countColumn(this.string, null, this.tabSize) -\n      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n  };\n  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {\n    if (typeof pattern == \"string\") {\n      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };\n      var substr = this.string.substr(this.pos, pattern.length);\n      if (cased(substr) == cased(pattern)) {\n        if (consume !== false) { this.pos += pattern.length; }\n        return true\n      }\n    } else {\n      var match = this.string.slice(this.pos).match(pattern);\n      if (match && match.index > 0) { return null }\n      if (match && consume !== false) { this.pos += match[0].length; }\n      return match\n    }\n  };\n  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};\n  StringStream.prototype.hideFirstChars = function (n, inner) {\n    this.lineStart += n;\n    try { return inner() }\n    finally { this.lineStart -= n; }\n  };\n  StringStream.prototype.lookAhead = function (n) {\n    var oracle = this.lineOracle;\n    return oracle && oracle.lookAhead(n)\n  };\n  StringStream.prototype.baseToken = function () {\n    var oracle = this.lineOracle;\n    return oracle && oracle.baseToken(this.pos)\n  };\n\n  // Find the line object corresponding to the given line number.\n  function getLine(doc, n) {\n    n -= doc.first;\n    if (n < 0 || n >= doc.size) { throw new Error(\"There is no line \" + (n + doc.first) + \" in the document.\") }\n    var chunk = doc;\n    while (!chunk.lines) {\n      for (var i = 0;; ++i) {\n        var child = chunk.children[i], sz = child.chunkSize();\n        if (n < sz) { chunk = child; break }\n        n -= sz;\n      }\n    }\n    return chunk.lines[n]\n  }\n\n  // Get the part of a document between two positions, as an array of\n  // strings.\n  function getBetween(doc, start, end) {\n    var out = [], n = start.line;\n    doc.iter(start.line, end.line + 1, function (line) {\n      var text = line.text;\n      if (n == end.line) { text = text.slice(0, end.ch); }\n      if (n == start.line) { text = text.slice(start.ch); }\n      out.push(text);\n      ++n;\n    });\n    return out\n  }\n  // Get the lines between from and to, as array of strings.\n  function getLines(doc, from, to) {\n    var out = [];\n    doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value\n    return out\n  }\n\n  // Update the height of a line, propagating the height change\n  // upwards to parent nodes.\n  function updateLineHeight(line, height) {\n    var diff = height - line.height;\n    if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }\n  }\n\n  // Given a line object, find its line number by walking up through\n  // its parent links.\n  function lineNo(line) {\n    if (line.parent == null) { return null }\n    var cur = line.parent, no = indexOf(cur.lines, line);\n    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {\n      for (var i = 0;; ++i) {\n        if (chunk.children[i] == cur) { break }\n        no += chunk.children[i].chunkSize();\n      }\n    }\n    return no + cur.first\n  }\n\n  // Find the line at the given vertical position, using the height\n  // information in the document tree.\n  function lineAtHeight(chunk, h) {\n    var n = chunk.first;\n    outer: do {\n      for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {\n        var child = chunk.children[i$1], ch = child.height;\n        if (h < ch) { chunk = child; continue outer }\n        h -= ch;\n        n += child.chunkSize();\n      }\n      return n\n    } while (!chunk.lines)\n    var i = 0;\n    for (; i < chunk.lines.length; ++i) {\n      var line = chunk.lines[i], lh = line.height;\n      if (h < lh) { break }\n      h -= lh;\n    }\n    return n + i\n  }\n\n  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}\n\n  function lineNumberFor(options, i) {\n    return String(options.lineNumberFormatter(i + options.firstLineNumber))\n  }\n\n  // A Pos instance represents a position within the text.\n  function Pos(line, ch, sticky) {\n    if ( sticky === void 0 ) sticky = null;\n\n    if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }\n    this.line = line;\n    this.ch = ch;\n    this.sticky = sticky;\n  }\n\n  // Compare two positions, return 0 if they are the same, a negative\n  // number when a is less, and a positive number otherwise.\n  function cmp(a, b) { return a.line - b.line || a.ch - b.ch }\n\n  function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }\n\n  function copyPos(x) {return Pos(x.line, x.ch)}\n  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }\n  function minPos(a, b) { return cmp(a, b) < 0 ? a : b }\n\n  // Most of the external API clips given positions to make sure they\n  // actually exist within the document.\n  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}\n  function clipPos(doc, pos) {\n    if (pos.line < doc.first) { return Pos(doc.first, 0) }\n    var last = doc.first + doc.size - 1;\n    if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }\n    return clipToLen(pos, getLine(doc, pos.line).text.length)\n  }\n  function clipToLen(pos, linelen) {\n    var ch = pos.ch;\n    if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }\n    else if (ch < 0) { return Pos(pos.line, 0) }\n    else { return pos }\n  }\n  function clipPosArray(doc, array) {\n    var out = [];\n    for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }\n    return out\n  }\n\n  var SavedContext = function(state, lookAhead) {\n    this.state = state;\n    this.lookAhead = lookAhead;\n  };\n\n  var Context = function(doc, state, line, lookAhead) {\n    this.state = state;\n    this.doc = doc;\n    this.line = line;\n    this.maxLookAhead = lookAhead || 0;\n    this.baseTokens = null;\n    this.baseTokenPos = 1;\n  };\n\n  Context.prototype.lookAhead = function (n) {\n    var line = this.doc.getLine(this.line + n);\n    if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }\n    return line\n  };\n\n  Context.prototype.baseToken = function (n) {\n    if (!this.baseTokens) { return null }\n    while (this.baseTokens[this.baseTokenPos] <= n)\n      { this.baseTokenPos += 2; }\n    var type = this.baseTokens[this.baseTokenPos + 1];\n    return {type: type && type.replace(/( |^)overlay .*/, \"\"),\n            size: this.baseTokens[this.baseTokenPos] - n}\n  };\n\n  Context.prototype.nextLine = function () {\n    this.line++;\n    if (this.maxLookAhead > 0) { this.maxLookAhead--; }\n  };\n\n  Context.fromSaved = function (doc, saved, line) {\n    if (saved instanceof SavedContext)\n      { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }\n    else\n      { return new Context(doc, copyState(doc.mode, saved), line) }\n  };\n\n  Context.prototype.save = function (copy) {\n    var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;\n    return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state\n  };\n\n\n  // Compute a style array (an array starting with a mode generation\n  // -- for invalidation -- followed by pairs of end positions and\n  // style strings), which is used to highlight the tokens on the\n  // line.\n  function highlightLine(cm, line, context, forceToEnd) {\n    // A styles array always starts with a number identifying the\n    // mode/overlays that it is based on (for easy invalidation).\n    var st = [cm.state.modeGen], lineClasses = {};\n    // Compute the base array of styles\n    runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },\n            lineClasses, forceToEnd);\n    var state = context.state;\n\n    // Run overlays, adjust style array.\n    var loop = function ( o ) {\n      context.baseTokens = st;\n      var overlay = cm.state.overlays[o], i = 1, at = 0;\n      context.state = true;\n      runMode(cm, line.text, overlay.mode, context, function (end, style) {\n        var start = i;\n        // Ensure there's a token end at the current position, and that i points at it\n        while (at < end) {\n          var i_end = st[i];\n          if (i_end > end)\n            { st.splice(i, 1, end, st[i+1], i_end); }\n          i += 2;\n          at = Math.min(end, i_end);\n        }\n        if (!style) { return }\n        if (overlay.opaque) {\n          st.splice(start, i - start, end, \"overlay \" + style);\n          i = start + 2;\n        } else {\n          for (; start < i; start += 2) {\n            var cur = st[start+1];\n            st[start+1] = (cur ? cur + \" \" : \"\") + \"overlay \" + style;\n          }\n        }\n      }, lineClasses);\n      context.state = state;\n      context.baseTokens = null;\n      context.baseTokenPos = 1;\n    };\n\n    for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );\n\n    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}\n  }\n\n  function getLineStyles(cm, line, updateFrontier) {\n    if (!line.styles || line.styles[0] != cm.state.modeGen) {\n      var context = getContextBefore(cm, lineNo(line));\n      var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);\n      var result = highlightLine(cm, line, context);\n      if (resetState) { context.state = resetState; }\n      line.stateAfter = context.save(!resetState);\n      line.styles = result.styles;\n      if (result.classes) { line.styleClasses = result.classes; }\n      else if (line.styleClasses) { line.styleClasses = null; }\n      if (updateFrontier === cm.doc.highlightFrontier)\n        { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }\n    }\n    return line.styles\n  }\n\n  function getContextBefore(cm, n, precise) {\n    var doc = cm.doc, display = cm.display;\n    if (!doc.mode.startState) { return new Context(doc, true, n) }\n    var start = findStartLine(cm, n, precise);\n    var saved = start > doc.first && getLine(doc, start - 1).stateAfter;\n    var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);\n\n    doc.iter(start, n, function (line) {\n      processLine(cm, line.text, context);\n      var pos = context.line;\n      line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;\n      context.nextLine();\n    });\n    if (precise) { doc.modeFrontier = context.line; }\n    return context\n  }\n\n  // Lightweight form of highlight -- proceed over this line and\n  // update state, but don't save a style array. Used for lines that\n  // aren't currently visible.\n  function processLine(cm, text, context, startAt) {\n    var mode = cm.doc.mode;\n    var stream = new StringStream(text, cm.options.tabSize, context);\n    stream.start = stream.pos = startAt || 0;\n    if (text == \"\") { callBlankLine(mode, context.state); }\n    while (!stream.eol()) {\n      readToken(mode, stream, context.state);\n      stream.start = stream.pos;\n    }\n  }\n\n  function callBlankLine(mode, state) {\n    if (mode.blankLine) { return mode.blankLine(state) }\n    if (!mode.innerMode) { return }\n    var inner = innerMode(mode, state);\n    if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }\n  }\n\n  function readToken(mode, stream, state, inner) {\n    for (var i = 0; i < 10; i++) {\n      if (inner) { inner[0] = innerMode(mode, state).mode; }\n      var style = mode.token(stream, state);\n      if (stream.pos > stream.start) { return style }\n    }\n    throw new Error(\"Mode \" + mode.name + \" failed to advance stream.\")\n  }\n\n  var Token = function(stream, type, state) {\n    this.start = stream.start; this.end = stream.pos;\n    this.string = stream.current();\n    this.type = type || null;\n    this.state = state;\n  };\n\n  // Utility for getTokenAt and getLineTokens\n  function takeToken(cm, pos, precise, asArray) {\n    var doc = cm.doc, mode = doc.mode, style;\n    pos = clipPos(doc, pos);\n    var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);\n    var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;\n    if (asArray) { tokens = []; }\n    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {\n      stream.start = stream.pos;\n      style = readToken(mode, stream, context.state);\n      if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }\n    }\n    return asArray ? tokens : new Token(stream, style, context.state)\n  }\n\n  function extractLineClasses(type, output) {\n    if (type) { for (;;) {\n      var lineClass = type.match(/(?:^|\\s+)line-(background-)?(\\S+)/);\n      if (!lineClass) { break }\n      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);\n      var prop = lineClass[1] ? \"bgClass\" : \"textClass\";\n      if (output[prop] == null)\n        { output[prop] = lineClass[2]; }\n      else if (!(new RegExp(\"(?:^|\\s)\" + lineClass[2] + \"(?:$|\\s)\")).test(output[prop]))\n        { output[prop] += \" \" + lineClass[2]; }\n    } }\n    return type\n  }\n\n  // Run the given mode's parser over a line, calling f for each token.\n  function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {\n    var flattenSpans = mode.flattenSpans;\n    if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }\n    var curStart = 0, curStyle = null;\n    var stream = new StringStream(text, cm.options.tabSize, context), style;\n    var inner = cm.options.addModeClass && [null];\n    if (text == \"\") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }\n    while (!stream.eol()) {\n      if (stream.pos > cm.options.maxHighlightLength) {\n        flattenSpans = false;\n        if (forceToEnd) { processLine(cm, text, context, stream.pos); }\n        stream.pos = text.length;\n        style = null;\n      } else {\n        style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);\n      }\n      if (inner) {\n        var mName = inner[0].name;\n        if (mName) { style = \"m-\" + (style ? mName + \" \" + style : mName); }\n      }\n      if (!flattenSpans || curStyle != style) {\n        while (curStart < stream.start) {\n          curStart = Math.min(stream.start, curStart + 5000);\n          f(curStart, curStyle);\n        }\n        curStyle = style;\n      }\n      stream.start = stream.pos;\n    }\n    while (curStart < stream.pos) {\n      // Webkit seems to refuse to render text nodes longer than 57444\n      // characters, and returns inaccurate measurements in nodes\n      // starting around 5000 chars.\n      var pos = Math.min(stream.pos, curStart + 5000);\n      f(pos, curStyle);\n      curStart = pos;\n    }\n  }\n\n  // Finds the line to start with when starting a parse. Tries to\n  // find a line with a stateAfter, so that it can start with a\n  // valid state. If that fails, it returns the line with the\n  // smallest indentation, which tends to need the least context to\n  // parse correctly.\n  function findStartLine(cm, n, precise) {\n    var minindent, minline, doc = cm.doc;\n    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);\n    for (var search = n; search > lim; --search) {\n      if (search <= doc.first) { return doc.first }\n      var line = getLine(doc, search - 1), after = line.stateAfter;\n      if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))\n        { return search }\n      var indented = countColumn(line.text, null, cm.options.tabSize);\n      if (minline == null || minindent > indented) {\n        minline = search - 1;\n        minindent = indented;\n      }\n    }\n    return minline\n  }\n\n  function retreatFrontier(doc, n) {\n    doc.modeFrontier = Math.min(doc.modeFrontier, n);\n    if (doc.highlightFrontier < n - 10) { return }\n    var start = doc.first;\n    for (var line = n - 1; line > start; line--) {\n      var saved = getLine(doc, line).stateAfter;\n      // change is on 3\n      // state on line 1 looked ahead 2 -- so saw 3\n      // test 1 + 2 < 3 should cover this\n      if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {\n        start = line + 1;\n        break\n      }\n    }\n    doc.highlightFrontier = Math.min(doc.highlightFrontier, start);\n  }\n\n  // Optimize some code when these features are not used.\n  var sawReadOnlySpans = false, sawCollapsedSpans = false;\n\n  function seeReadOnlySpans() {\n    sawReadOnlySpans = true;\n  }\n\n  function seeCollapsedSpans() {\n    sawCollapsedSpans = true;\n  }\n\n  // TEXTMARKER SPANS\n\n  function MarkedSpan(marker, from, to) {\n    this.marker = marker;\n    this.from = from; this.to = to;\n  }\n\n  // Search an array of spans for a span matching the given marker.\n  function getMarkedSpanFor(spans, marker) {\n    if (spans) { for (var i = 0; i < spans.length; ++i) {\n      var span = spans[i];\n      if (span.marker == marker) { return span }\n    } }\n  }\n  // Remove a span from an array, returning undefined if no spans are\n  // left (we don't store arrays for lines without spans).\n  function removeMarkedSpan(spans, span) {\n    var r;\n    for (var i = 0; i < spans.length; ++i)\n      { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }\n    return r\n  }\n  // Add a span to a line.\n  function addMarkedSpan(line, span) {\n    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];\n    span.marker.attachLine(line);\n  }\n\n  // Used for the algorithm that adjusts markers for a change in the\n  // document. These functions cut an array of spans at a given\n  // character position, returning an array of remaining chunks (or\n  // undefined if nothing remains).\n  function markedSpansBefore(old, startCh, isInsert) {\n    var nw;\n    if (old) { for (var i = 0; i < old.length; ++i) {\n      var span = old[i], marker = span.marker;\n      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);\n      if (startsBefore || span.from == startCh && marker.type == \"bookmark\" && (!isInsert || !span.marker.insertLeft)) {\n        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)\n        ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));\n      }\n    } }\n    return nw\n  }\n  function markedSpansAfter(old, endCh, isInsert) {\n    var nw;\n    if (old) { for (var i = 0; i < old.length; ++i) {\n      var span = old[i], marker = span.marker;\n      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);\n      if (endsAfter || span.from == endCh && marker.type == \"bookmark\" && (!isInsert || span.marker.insertLeft)) {\n        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)\n        ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,\n                                              span.to == null ? null : span.to - endCh));\n      }\n    } }\n    return nw\n  }\n\n  // Given a change object, compute the new set of marker spans that\n  // cover the line in which the change took place. Removes spans\n  // entirely within the change, reconnects spans belonging to the\n  // same marker that appear on both sides of the change, and cuts off\n  // spans partially within the change. Returns an array of span\n  // arrays with one element for each line in (after) the change.\n  function stretchSpansOverChange(doc, change) {\n    if (change.full) { return null }\n    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;\n    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;\n    if (!oldFirst && !oldLast) { return null }\n\n    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;\n    // Get the spans that 'stick out' on both sides\n    var first = markedSpansBefore(oldFirst, startCh, isInsert);\n    var last = markedSpansAfter(oldLast, endCh, isInsert);\n\n    // Next, merge those two ends\n    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);\n    if (first) {\n      // Fix up .to properties of first\n      for (var i = 0; i < first.length; ++i) {\n        var span = first[i];\n        if (span.to == null) {\n          var found = getMarkedSpanFor(last, span.marker);\n          if (!found) { span.to = startCh; }\n          else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }\n        }\n      }\n    }\n    if (last) {\n      // Fix up .from in last (or move them into first in case of sameLine)\n      for (var i$1 = 0; i$1 < last.length; ++i$1) {\n        var span$1 = last[i$1];\n        if (span$1.to != null) { span$1.to += offset; }\n        if (span$1.from == null) {\n          var found$1 = getMarkedSpanFor(first, span$1.marker);\n          if (!found$1) {\n            span$1.from = offset;\n            if (sameLine) { (first || (first = [])).push(span$1); }\n          }\n        } else {\n          span$1.from += offset;\n          if (sameLine) { (first || (first = [])).push(span$1); }\n        }\n      }\n    }\n    // Make sure we didn't create any zero-length spans\n    if (first) { first = clearEmptySpans(first); }\n    if (last && last != first) { last = clearEmptySpans(last); }\n\n    var newMarkers = [first];\n    if (!sameLine) {\n      // Fill gap with whole-line-spans\n      var gap = change.text.length - 2, gapMarkers;\n      if (gap > 0 && first)\n        { for (var i$2 = 0; i$2 < first.length; ++i$2)\n          { if (first[i$2].to == null)\n            { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }\n      for (var i$3 = 0; i$3 < gap; ++i$3)\n        { newMarkers.push(gapMarkers); }\n      newMarkers.push(last);\n    }\n    return newMarkers\n  }\n\n  // Remove spans that are empty and don't have a clearWhenEmpty\n  // option of false.\n  function clearEmptySpans(spans) {\n    for (var i = 0; i < spans.length; ++i) {\n      var span = spans[i];\n      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)\n        { spans.splice(i--, 1); }\n    }\n    if (!spans.length) { return null }\n    return spans\n  }\n\n  // Used to 'clip' out readOnly ranges when making a change.\n  function removeReadOnlyRanges(doc, from, to) {\n    var markers = null;\n    doc.iter(from.line, to.line + 1, function (line) {\n      if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n        var mark = line.markedSpans[i].marker;\n        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))\n          { (markers || (markers = [])).push(mark); }\n      } }\n    });\n    if (!markers) { return null }\n    var parts = [{from: from, to: to}];\n    for (var i = 0; i < markers.length; ++i) {\n      var mk = markers[i], m = mk.find(0);\n      for (var j = 0; j < parts.length; ++j) {\n        var p = parts[j];\n        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }\n        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);\n        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)\n          { newParts.push({from: p.from, to: m.from}); }\n        if (dto > 0 || !mk.inclusiveRight && !dto)\n          { newParts.push({from: m.to, to: p.to}); }\n        parts.splice.apply(parts, newParts);\n        j += newParts.length - 3;\n      }\n    }\n    return parts\n  }\n\n  // Connect or disconnect spans from a line.\n  function detachMarkedSpans(line) {\n    var spans = line.markedSpans;\n    if (!spans) { return }\n    for (var i = 0; i < spans.length; ++i)\n      { spans[i].marker.detachLine(line); }\n    line.markedSpans = null;\n  }\n  function attachMarkedSpans(line, spans) {\n    if (!spans) { return }\n    for (var i = 0; i < spans.length; ++i)\n      { spans[i].marker.attachLine(line); }\n    line.markedSpans = spans;\n  }\n\n  // Helpers used when computing which overlapping collapsed span\n  // counts as the larger one.\n  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }\n  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }\n\n  // Returns a number indicating which of two overlapping collapsed\n  // spans is larger (and thus includes the other). Falls back to\n  // comparing ids when the spans cover exactly the same range.\n  function compareCollapsedMarkers(a, b) {\n    var lenDiff = a.lines.length - b.lines.length;\n    if (lenDiff != 0) { return lenDiff }\n    var aPos = a.find(), bPos = b.find();\n    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);\n    if (fromCmp) { return -fromCmp }\n    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);\n    if (toCmp) { return toCmp }\n    return b.id - a.id\n  }\n\n  // Find out whether a line ends or starts in a collapsed span. If\n  // so, return the marker for that span.\n  function collapsedSpanAtSide(line, start) {\n    var sps = sawCollapsedSpans && line.markedSpans, found;\n    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n      sp = sps[i];\n      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0))\n        { found = sp.marker; }\n    } }\n    return found\n  }\n  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }\n  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }\n\n  function collapsedSpanAround(line, ch) {\n    var sps = sawCollapsedSpans && line.markedSpans, found;\n    if (sps) { for (var i = 0; i < sps.length; ++i) {\n      var sp = sps[i];\n      if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }\n    } }\n    return found\n  }\n\n  // Test whether there exists a collapsed span that partially\n  // overlaps (covers the start or end, but not both) of a new span.\n  // Such overlap is not allowed.\n  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {\n    var line = getLine(doc, lineNo);\n    var sps = sawCollapsedSpans && line.markedSpans;\n    if (sps) { for (var i = 0; i < sps.length; ++i) {\n      var sp = sps[i];\n      if (!sp.marker.collapsed) { continue }\n      var found = sp.marker.find(0);\n      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);\n      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);\n      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }\n      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||\n          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))\n        { return true }\n    } }\n  }\n\n  // A visual line is a line as drawn on the screen. Folding, for\n  // example, can cause multiple logical lines to appear on the same\n  // visual line. This finds the start of the visual line that the\n  // given line is part of (usually that is the line itself).\n  function visualLine(line) {\n    var merged;\n    while (merged = collapsedSpanAtStart(line))\n      { line = merged.find(-1, true).line; }\n    return line\n  }\n\n  function visualLineEnd(line) {\n    var merged;\n    while (merged = collapsedSpanAtEnd(line))\n      { line = merged.find(1, true).line; }\n    return line\n  }\n\n  // Returns an array of logical lines that continue the visual line\n  // started by the argument, or undefined if there are no such lines.\n  function visualLineContinued(line) {\n    var merged, lines;\n    while (merged = collapsedSpanAtEnd(line)) {\n      line = merged.find(1, true).line\n      ;(lines || (lines = [])).push(line);\n    }\n    return lines\n  }\n\n  // Get the line number of the start of the visual line that the\n  // given line number is part of.\n  function visualLineNo(doc, lineN) {\n    var line = getLine(doc, lineN), vis = visualLine(line);\n    if (line == vis) { return lineN }\n    return lineNo(vis)\n  }\n\n  // Get the line number of the start of the next visual line after\n  // the given line.\n  function visualLineEndNo(doc, lineN) {\n    if (lineN > doc.lastLine()) { return lineN }\n    var line = getLine(doc, lineN), merged;\n    if (!lineIsHidden(doc, line)) { return lineN }\n    while (merged = collapsedSpanAtEnd(line))\n      { line = merged.find(1, true).line; }\n    return lineNo(line) + 1\n  }\n\n  // Compute whether a line is hidden. Lines count as hidden when they\n  // are part of a visual line that starts with another line, or when\n  // they are entirely covered by collapsed, non-widget span.\n  function lineIsHidden(doc, line) {\n    var sps = sawCollapsedSpans && line.markedSpans;\n    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n      sp = sps[i];\n      if (!sp.marker.collapsed) { continue }\n      if (sp.from == null) { return true }\n      if (sp.marker.widgetNode) { continue }\n      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))\n        { return true }\n    } }\n  }\n  function lineIsHiddenInner(doc, line, span) {\n    if (span.to == null) {\n      var end = span.marker.find(1, true);\n      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))\n    }\n    if (span.marker.inclusiveRight && span.to == line.text.length)\n      { return true }\n    for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {\n      sp = line.markedSpans[i];\n      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&\n          (sp.to == null || sp.to != span.from) &&\n          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&\n          lineIsHiddenInner(doc, line, sp)) { return true }\n    }\n  }\n\n  // Find the height above the given line.\n  function heightAtLine(lineObj) {\n    lineObj = visualLine(lineObj);\n\n    var h = 0, chunk = lineObj.parent;\n    for (var i = 0; i < chunk.lines.length; ++i) {\n      var line = chunk.lines[i];\n      if (line == lineObj) { break }\n      else { h += line.height; }\n    }\n    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {\n      for (var i$1 = 0; i$1 < p.children.length; ++i$1) {\n        var cur = p.children[i$1];\n        if (cur == chunk) { break }\n        else { h += cur.height; }\n      }\n    }\n    return h\n  }\n\n  // Compute the character length of a line, taking into account\n  // collapsed ranges (see markText) that might hide parts, and join\n  // other lines onto it.\n  function lineLength(line) {\n    if (line.height == 0) { return 0 }\n    var len = line.text.length, merged, cur = line;\n    while (merged = collapsedSpanAtStart(cur)) {\n      var found = merged.find(0, true);\n      cur = found.from.line;\n      len += found.from.ch - found.to.ch;\n    }\n    cur = line;\n    while (merged = collapsedSpanAtEnd(cur)) {\n      var found$1 = merged.find(0, true);\n      len -= cur.text.length - found$1.from.ch;\n      cur = found$1.to.line;\n      len += cur.text.length - found$1.to.ch;\n    }\n    return len\n  }\n\n  // Find the longest line in the document.\n  function findMaxLine(cm) {\n    var d = cm.display, doc = cm.doc;\n    d.maxLine = getLine(doc, doc.first);\n    d.maxLineLength = lineLength(d.maxLine);\n    d.maxLineChanged = true;\n    doc.iter(function (line) {\n      var len = lineLength(line);\n      if (len > d.maxLineLength) {\n        d.maxLineLength = len;\n        d.maxLine = line;\n      }\n    });\n  }\n\n  // LINE DATA STRUCTURE\n\n  // Line objects. These hold state related to a line, including\n  // highlighting info (the styles array).\n  var Line = function(text, markedSpans, estimateHeight) {\n    this.text = text;\n    attachMarkedSpans(this, markedSpans);\n    this.height = estimateHeight ? estimateHeight(this) : 1;\n  };\n\n  Line.prototype.lineNo = function () { return lineNo(this) };\n  eventMixin(Line);\n\n  // Change the content (text, markers) of a line. Automatically\n  // invalidates cached information and tries to re-estimate the\n  // line's height.\n  function updateLine(line, text, markedSpans, estimateHeight) {\n    line.text = text;\n    if (line.stateAfter) { line.stateAfter = null; }\n    if (line.styles) { line.styles = null; }\n    if (line.order != null) { line.order = null; }\n    detachMarkedSpans(line);\n    attachMarkedSpans(line, markedSpans);\n    var estHeight = estimateHeight ? estimateHeight(line) : 1;\n    if (estHeight != line.height) { updateLineHeight(line, estHeight); }\n  }\n\n  // Detach a line from the document tree and its markers.\n  function cleanUpLine(line) {\n    line.parent = null;\n    detachMarkedSpans(line);\n  }\n\n  // Convert a style as returned by a mode (either null, or a string\n  // containing one or more styles) to a CSS style. This is cached,\n  // and also looks for line-wide styles.\n  var styleToClassCache = {}, styleToClassCacheWithMode = {};\n  function interpretTokenStyle(style, options) {\n    if (!style || /^\\s*$/.test(style)) { return null }\n    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;\n    return cache[style] ||\n      (cache[style] = style.replace(/\\S+/g, \"cm-$&\"))\n  }\n\n  // Render the DOM representation of the text of a line. Also builds\n  // up a 'line map', which points at the DOM nodes that represent\n  // specific stretches of text, and is used by the measuring code.\n  // The returned object contains the DOM node, this map, and\n  // information about line-wide styles that were set by the mode.\n  function buildLineContent(cm, lineView) {\n    // The padding-right forces the element to have a 'border', which\n    // is needed on Webkit to be able to get line-level bounding\n    // rectangles for it (in measureChar).\n    var content = eltP(\"span\", null, null, webkit ? \"padding-right: .1px\" : null);\n    var builder = {pre: eltP(\"pre\", [content], \"CodeMirror-line\"), content: content,\n                   col: 0, pos: 0, cm: cm,\n                   trailingSpace: false,\n                   splitSpaces: cm.getOption(\"lineWrapping\")};\n    lineView.measure = {};\n\n    // Iterate over the logical lines that make up this visual line.\n    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {\n      var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);\n      builder.pos = 0;\n      builder.addToken = buildToken;\n      // Optionally wire in some hacks into the token-rendering\n      // algorithm, to deal with browser quirks.\n      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))\n        { builder.addToken = buildTokenBadBidi(builder.addToken, order); }\n      builder.map = [];\n      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);\n      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));\n      if (line.styleClasses) {\n        if (line.styleClasses.bgClass)\n          { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || \"\"); }\n        if (line.styleClasses.textClass)\n          { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || \"\"); }\n      }\n\n      // Ensure at least a single node is present, for measuring.\n      if (builder.map.length == 0)\n        { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }\n\n      // Store the map and a cache object for the current logical line\n      if (i == 0) {\n        lineView.measure.map = builder.map;\n        lineView.measure.cache = {};\n      } else {\n  (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)\n        ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});\n      }\n    }\n\n    // See issue #2901\n    if (webkit) {\n      var last = builder.content.lastChild;\n      if (/\\bcm-tab\\b/.test(last.className) || (last.querySelector && last.querySelector(\".cm-tab\")))\n        { builder.content.className = \"cm-tab-wrap-hack\"; }\n    }\n\n    signal(cm, \"renderLine\", cm, lineView.line, builder.pre);\n    if (builder.pre.className)\n      { builder.textClass = joinClasses(builder.pre.className, builder.textClass || \"\"); }\n\n    return builder\n  }\n\n  function defaultSpecialCharPlaceholder(ch) {\n    var token = elt(\"span\", \"\\u2022\", \"cm-invalidchar\");\n    token.title = \"\\\\u\" + ch.charCodeAt(0).toString(16);\n    token.setAttribute(\"aria-label\", token.title);\n    return token\n  }\n\n  // Build up the DOM representation for a single token, and add it to\n  // the line map. Takes care to render special characters separately.\n  function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {\n    if (!text) { return }\n    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;\n    var special = builder.cm.state.specialChars, mustWrap = false;\n    var content;\n    if (!special.test(text)) {\n      builder.col += text.length;\n      content = document.createTextNode(displayText);\n      builder.map.push(builder.pos, builder.pos + text.length, content);\n      if (ie && ie_version < 9) { mustWrap = true; }\n      builder.pos += text.length;\n    } else {\n      content = document.createDocumentFragment();\n      var pos = 0;\n      while (true) {\n        special.lastIndex = pos;\n        var m = special.exec(text);\n        var skipped = m ? m.index - pos : text.length - pos;\n        if (skipped) {\n          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));\n          if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt])); }\n          else { content.appendChild(txt); }\n          builder.map.push(builder.pos, builder.pos + skipped, txt);\n          builder.col += skipped;\n          builder.pos += skipped;\n        }\n        if (!m) { break }\n        pos += skipped + 1;\n        var txt$1 = (void 0);\n        if (m[0] == \"\\t\") {\n          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;\n          txt$1 = content.appendChild(elt(\"span\", spaceStr(tabWidth), \"cm-tab\"));\n          txt$1.setAttribute(\"role\", \"presentation\");\n          txt$1.setAttribute(\"cm-text\", \"\\t\");\n          builder.col += tabWidth;\n        } else if (m[0] == \"\\r\" || m[0] == \"\\n\") {\n          txt$1 = content.appendChild(elt(\"span\", m[0] == \"\\r\" ? \"\\u240d\" : \"\\u2424\", \"cm-invalidchar\"));\n          txt$1.setAttribute(\"cm-text\", m[0]);\n          builder.col += 1;\n        } else {\n          txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);\n          txt$1.setAttribute(\"cm-text\", m[0]);\n          if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt$1])); }\n          else { content.appendChild(txt$1); }\n          builder.col += 1;\n        }\n        builder.map.push(builder.pos, builder.pos + 1, txt$1);\n        builder.pos++;\n      }\n    }\n    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;\n    if (style || startStyle || endStyle || mustWrap || css) {\n      var fullStyle = style || \"\";\n      if (startStyle) { fullStyle += startStyle; }\n      if (endStyle) { fullStyle += endStyle; }\n      var token = elt(\"span\", [content], fullStyle, css);\n      if (attributes) {\n        for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != \"style\" && attr != \"class\")\n          { token.setAttribute(attr, attributes[attr]); } }\n      }\n      return builder.content.appendChild(token)\n    }\n    builder.content.appendChild(content);\n  }\n\n  // Change some spaces to NBSP to prevent the browser from collapsing\n  // trailing spaces at the end of a line when rendering text (issue #1362).\n  function splitSpaces(text, trailingBefore) {\n    if (text.length > 1 && !/  /.test(text)) { return text }\n    var spaceBefore = trailingBefore, result = \"\";\n    for (var i = 0; i < text.length; i++) {\n      var ch = text.charAt(i);\n      if (ch == \" \" && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))\n        { ch = \"\\u00a0\"; }\n      result += ch;\n      spaceBefore = ch == \" \";\n    }\n    return result\n  }\n\n  // Work around nonsense dimensions being reported for stretches of\n  // right-to-left text.\n  function buildTokenBadBidi(inner, order) {\n    return function (builder, text, style, startStyle, endStyle, css, attributes) {\n      style = style ? style + \" cm-force-border\" : \"cm-force-border\";\n      var start = builder.pos, end = start + text.length;\n      for (;;) {\n        // Find the part that overlaps with the start of this text\n        var part = (void 0);\n        for (var i = 0; i < order.length; i++) {\n          part = order[i];\n          if (part.to > start && part.from <= start) { break }\n        }\n        if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }\n        inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);\n        startStyle = null;\n        text = text.slice(part.to - start);\n        start = part.to;\n      }\n    }\n  }\n\n  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {\n    var widget = !ignoreWidget && marker.widgetNode;\n    if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }\n    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {\n      if (!widget)\n        { widget = builder.content.appendChild(document.createElement(\"span\")); }\n      widget.setAttribute(\"cm-marker\", marker.id);\n    }\n    if (widget) {\n      builder.cm.display.input.setUneditable(widget);\n      builder.content.appendChild(widget);\n    }\n    builder.pos += size;\n    builder.trailingSpace = false;\n  }\n\n  // Outputs a number of spans to make up a line, taking highlighting\n  // and marked text into account.\n  function insertLineContent(line, builder, styles) {\n    var spans = line.markedSpans, allText = line.text, at = 0;\n    if (!spans) {\n      for (var i$1 = 1; i$1 < styles.length; i$1+=2)\n        { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }\n      return\n    }\n\n    var len = allText.length, pos = 0, i = 1, text = \"\", style, css;\n    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;\n    for (;;) {\n      if (nextChange == pos) { // Update current marker set\n        spanStyle = spanEndStyle = spanStartStyle = css = \"\";\n        attributes = null;\n        collapsed = null; nextChange = Infinity;\n        var foundBookmarks = [], endStyles = (void 0);\n        for (var j = 0; j < spans.length; ++j) {\n          var sp = spans[j], m = sp.marker;\n          if (m.type == \"bookmark\" && sp.from == pos && m.widgetNode) {\n            foundBookmarks.push(m);\n          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {\n            if (sp.to != null && sp.to != pos && nextChange > sp.to) {\n              nextChange = sp.to;\n              spanEndStyle = \"\";\n            }\n            if (m.className) { spanStyle += \" \" + m.className; }\n            if (m.css) { css = (css ? css + \";\" : \"\") + m.css; }\n            if (m.startStyle && sp.from == pos) { spanStartStyle += \" \" + m.startStyle; }\n            if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }\n            // support for the old title property\n            // https://github.com/codemirror/CodeMirror/pull/5673\n            if (m.title) { (attributes || (attributes = {})).title = m.title; }\n            if (m.attributes) {\n              for (var attr in m.attributes)\n                { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }\n            }\n            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))\n              { collapsed = sp; }\n          } else if (sp.from > pos && nextChange > sp.from) {\n            nextChange = sp.from;\n          }\n        }\n        if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)\n          { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += \" \" + endStyles[j$1]; } } }\n\n        if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)\n          { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }\n        if (collapsed && (collapsed.from || 0) == pos) {\n          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,\n                             collapsed.marker, collapsed.from == null);\n          if (collapsed.to == null) { return }\n          if (collapsed.to == pos) { collapsed = false; }\n        }\n      }\n      if (pos >= len) { break }\n\n      var upto = Math.min(len, nextChange);\n      while (true) {\n        if (text) {\n          var end = pos + text.length;\n          if (!collapsed) {\n            var tokenText = end > upto ? text.slice(0, upto - pos) : text;\n            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,\n                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : \"\", css, attributes);\n          }\n          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}\n          pos = end;\n          spanStartStyle = \"\";\n        }\n        text = allText.slice(at, at = styles[i++]);\n        style = interpretTokenStyle(styles[i++], builder.cm.options);\n      }\n    }\n  }\n\n\n  // These objects are used to represent the visible (currently drawn)\n  // part of the document. A LineView may correspond to multiple\n  // logical lines, if those are connected by collapsed ranges.\n  function LineView(doc, line, lineN) {\n    // The starting line\n    this.line = line;\n    // Continuing lines, if any\n    this.rest = visualLineContinued(line);\n    // Number of logical lines in this visual line\n    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;\n    this.node = this.text = null;\n    this.hidden = lineIsHidden(doc, line);\n  }\n\n  // Create a range of LineView objects for the given lines.\n  function buildViewArray(cm, from, to) {\n    var array = [], nextPos;\n    for (var pos = from; pos < to; pos = nextPos) {\n      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);\n      nextPos = pos + view.size;\n      array.push(view);\n    }\n    return array\n  }\n\n  var operationGroup = null;\n\n  function pushOperation(op) {\n    if (operationGroup) {\n      operationGroup.ops.push(op);\n    } else {\n      op.ownsGroup = operationGroup = {\n        ops: [op],\n        delayedCallbacks: []\n      };\n    }\n  }\n\n  function fireCallbacksForOps(group) {\n    // Calls delayed callbacks and cursorActivity handlers until no\n    // new ones appear\n    var callbacks = group.delayedCallbacks, i = 0;\n    do {\n      for (; i < callbacks.length; i++)\n        { callbacks[i].call(null); }\n      for (var j = 0; j < group.ops.length; j++) {\n        var op = group.ops[j];\n        if (op.cursorActivityHandlers)\n          { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)\n            { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }\n      }\n    } while (i < callbacks.length)\n  }\n\n  function finishOperation(op, endCb) {\n    var group = op.ownsGroup;\n    if (!group) { return }\n\n    try { fireCallbacksForOps(group); }\n    finally {\n      operationGroup = null;\n      endCb(group);\n    }\n  }\n\n  var orphanDelayedCallbacks = null;\n\n  // Often, we want to signal events at a point where we are in the\n  // middle of some work, but don't want the handler to start calling\n  // other methods on the editor, which might be in an inconsistent\n  // state or simply not expect any other events to happen.\n  // signalLater looks whether there are any handlers, and schedules\n  // them to be executed when the last operation ends, or, if no\n  // operation is active, when a timeout fires.\n  function signalLater(emitter, type /*, values...*/) {\n    var arr = getHandlers(emitter, type);\n    if (!arr.length) { return }\n    var args = Array.prototype.slice.call(arguments, 2), list;\n    if (operationGroup) {\n      list = operationGroup.delayedCallbacks;\n    } else if (orphanDelayedCallbacks) {\n      list = orphanDelayedCallbacks;\n    } else {\n      list = orphanDelayedCallbacks = [];\n      setTimeout(fireOrphanDelayed, 0);\n    }\n    var loop = function ( i ) {\n      list.push(function () { return arr[i].apply(null, args); });\n    };\n\n    for (var i = 0; i < arr.length; ++i)\n      loop( i );\n  }\n\n  function fireOrphanDelayed() {\n    var delayed = orphanDelayedCallbacks;\n    orphanDelayedCallbacks = null;\n    for (var i = 0; i < delayed.length; ++i) { delayed[i](); }\n  }\n\n  // When an aspect of a line changes, a string is added to\n  // lineView.changes. This updates the relevant part of the line's\n  // DOM structure.\n  function updateLineForChanges(cm, lineView, lineN, dims) {\n    for (var j = 0; j < lineView.changes.length; j++) {\n      var type = lineView.changes[j];\n      if (type == \"text\") { updateLineText(cm, lineView); }\n      else if (type == \"gutter\") { updateLineGutter(cm, lineView, lineN, dims); }\n      else if (type == \"class\") { updateLineClasses(cm, lineView); }\n      else if (type == \"widget\") { updateLineWidgets(cm, lineView, dims); }\n    }\n    lineView.changes = null;\n  }\n\n  // Lines with gutter elements, widgets or a background class need to\n  // be wrapped, and have the extra elements added to the wrapper div\n  function ensureLineWrapped(lineView) {\n    if (lineView.node == lineView.text) {\n      lineView.node = elt(\"div\", null, null, \"position: relative\");\n      if (lineView.text.parentNode)\n        { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }\n      lineView.node.appendChild(lineView.text);\n      if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }\n    }\n    return lineView.node\n  }\n\n  function updateLineBackground(cm, lineView) {\n    var cls = lineView.bgClass ? lineView.bgClass + \" \" + (lineView.line.bgClass || \"\") : lineView.line.bgClass;\n    if (cls) { cls += \" CodeMirror-linebackground\"; }\n    if (lineView.background) {\n      if (cls) { lineView.background.className = cls; }\n      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }\n    } else if (cls) {\n      var wrap = ensureLineWrapped(lineView);\n      lineView.background = wrap.insertBefore(elt(\"div\", null, cls), wrap.firstChild);\n      cm.display.input.setUneditable(lineView.background);\n    }\n  }\n\n  // Wrapper around buildLineContent which will reuse the structure\n  // in display.externalMeasured when possible.\n  function getLineContent(cm, lineView) {\n    var ext = cm.display.externalMeasured;\n    if (ext && ext.line == lineView.line) {\n      cm.display.externalMeasured = null;\n      lineView.measure = ext.measure;\n      return ext.built\n    }\n    return buildLineContent(cm, lineView)\n  }\n\n  // Redraw the line's text. Interacts with the background and text\n  // classes because the mode may output tokens that influence these\n  // classes.\n  function updateLineText(cm, lineView) {\n    var cls = lineView.text.className;\n    var built = getLineContent(cm, lineView);\n    if (lineView.text == lineView.node) { lineView.node = built.pre; }\n    lineView.text.parentNode.replaceChild(built.pre, lineView.text);\n    lineView.text = built.pre;\n    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {\n      lineView.bgClass = built.bgClass;\n      lineView.textClass = built.textClass;\n      updateLineClasses(cm, lineView);\n    } else if (cls) {\n      lineView.text.className = cls;\n    }\n  }\n\n  function updateLineClasses(cm, lineView) {\n    updateLineBackground(cm, lineView);\n    if (lineView.line.wrapClass)\n      { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }\n    else if (lineView.node != lineView.text)\n      { lineView.node.className = \"\"; }\n    var textClass = lineView.textClass ? lineView.textClass + \" \" + (lineView.line.textClass || \"\") : lineView.line.textClass;\n    lineView.text.className = textClass || \"\";\n  }\n\n  function updateLineGutter(cm, lineView, lineN, dims) {\n    if (lineView.gutter) {\n      lineView.node.removeChild(lineView.gutter);\n      lineView.gutter = null;\n    }\n    if (lineView.gutterBackground) {\n      lineView.node.removeChild(lineView.gutterBackground);\n      lineView.gutterBackground = null;\n    }\n    if (lineView.line.gutterClass) {\n      var wrap = ensureLineWrapped(lineView);\n      lineView.gutterBackground = elt(\"div\", null, \"CodeMirror-gutter-background \" + lineView.line.gutterClass,\n                                      (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px; width: \" + (dims.gutterTotalWidth) + \"px\"));\n      cm.display.input.setUneditable(lineView.gutterBackground);\n      wrap.insertBefore(lineView.gutterBackground, lineView.text);\n    }\n    var markers = lineView.line.gutterMarkers;\n    if (cm.options.lineNumbers || markers) {\n      var wrap$1 = ensureLineWrapped(lineView);\n      var gutterWrap = lineView.gutter = elt(\"div\", null, \"CodeMirror-gutter-wrapper\", (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px\"));\n      cm.display.input.setUneditable(gutterWrap);\n      wrap$1.insertBefore(gutterWrap, lineView.text);\n      if (lineView.line.gutterClass)\n        { gutterWrap.className += \" \" + lineView.line.gutterClass; }\n      if (cm.options.lineNumbers && (!markers || !markers[\"CodeMirror-linenumbers\"]))\n        { lineView.lineNumber = gutterWrap.appendChild(\n          elt(\"div\", lineNumberFor(cm.options, lineN),\n              \"CodeMirror-linenumber CodeMirror-gutter-elt\",\n              (\"left: \" + (dims.gutterLeft[\"CodeMirror-linenumbers\"]) + \"px; width: \" + (cm.display.lineNumInnerWidth) + \"px\"))); }\n      if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {\n        var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];\n        if (found)\n          { gutterWrap.appendChild(elt(\"div\", [found], \"CodeMirror-gutter-elt\",\n                                     (\"left: \" + (dims.gutterLeft[id]) + \"px; width: \" + (dims.gutterWidth[id]) + \"px\"))); }\n      } }\n    }\n  }\n\n  function updateLineWidgets(cm, lineView, dims) {\n    if (lineView.alignable) { lineView.alignable = null; }\n    var isWidget = classTest(\"CodeMirror-linewidget\");\n    for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {\n      next = node.nextSibling;\n      if (isWidget.test(node.className)) { lineView.node.removeChild(node); }\n    }\n    insertLineWidgets(cm, lineView, dims);\n  }\n\n  // Build a line's DOM representation from scratch\n  function buildLineElement(cm, lineView, lineN, dims) {\n    var built = getLineContent(cm, lineView);\n    lineView.text = lineView.node = built.pre;\n    if (built.bgClass) { lineView.bgClass = built.bgClass; }\n    if (built.textClass) { lineView.textClass = built.textClass; }\n\n    updateLineClasses(cm, lineView);\n    updateLineGutter(cm, lineView, lineN, dims);\n    insertLineWidgets(cm, lineView, dims);\n    return lineView.node\n  }\n\n  // A lineView may contain multiple logical lines (when merged by\n  // collapsed spans). The widgets for all of them need to be drawn.\n  function insertLineWidgets(cm, lineView, dims) {\n    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);\n    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n      { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }\n  }\n\n  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {\n    if (!line.widgets) { return }\n    var wrap = ensureLineWrapped(lineView);\n    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {\n      var widget = ws[i], node = elt(\"div\", [widget.node], \"CodeMirror-linewidget\" + (widget.className ? \" \" + widget.className : \"\"));\n      if (!widget.handleMouseEvents) { node.setAttribute(\"cm-ignore-events\", \"true\"); }\n      positionLineWidget(widget, node, lineView, dims);\n      cm.display.input.setUneditable(node);\n      if (allowAbove && widget.above)\n        { wrap.insertBefore(node, lineView.gutter || lineView.text); }\n      else\n        { wrap.appendChild(node); }\n      signalLater(widget, \"redraw\");\n    }\n  }\n\n  function positionLineWidget(widget, node, lineView, dims) {\n    if (widget.noHScroll) {\n  (lineView.alignable || (lineView.alignable = [])).push(node);\n      var width = dims.wrapperWidth;\n      node.style.left = dims.fixedPos + \"px\";\n      if (!widget.coverGutter) {\n        width -= dims.gutterTotalWidth;\n        node.style.paddingLeft = dims.gutterTotalWidth + \"px\";\n      }\n      node.style.width = width + \"px\";\n    }\n    if (widget.coverGutter) {\n      node.style.zIndex = 5;\n      node.style.position = \"relative\";\n      if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + \"px\"; }\n    }\n  }\n\n  function widgetHeight(widget) {\n    if (widget.height != null) { return widget.height }\n    var cm = widget.doc.cm;\n    if (!cm) { return 0 }\n    if (!contains(document.body, widget.node)) {\n      var parentStyle = \"position: relative;\";\n      if (widget.coverGutter)\n        { parentStyle += \"margin-left: -\" + cm.display.gutters.offsetWidth + \"px;\"; }\n      if (widget.noHScroll)\n        { parentStyle += \"width: \" + cm.display.wrapper.clientWidth + \"px;\"; }\n      removeChildrenAndAdd(cm.display.measure, elt(\"div\", [widget.node], null, parentStyle));\n    }\n    return widget.height = widget.node.parentNode.offsetHeight\n  }\n\n  // Return true when the given mouse event happened in a widget\n  function eventInWidget(display, e) {\n    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {\n      if (!n || (n.nodeType == 1 && n.getAttribute(\"cm-ignore-events\") == \"true\") ||\n          (n.parentNode == display.sizer && n != display.mover))\n        { return true }\n    }\n  }\n\n  // POSITION MEASUREMENT\n\n  function paddingTop(display) {return display.lineSpace.offsetTop}\n  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}\n  function paddingH(display) {\n    if (display.cachedPaddingH) { return display.cachedPaddingH }\n    var e = removeChildrenAndAdd(display.measure, elt(\"pre\", \"x\", \"CodeMirror-line-like\"));\n    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;\n    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};\n    if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }\n    return data\n  }\n\n  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }\n  function displayWidth(cm) {\n    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth\n  }\n  function displayHeight(cm) {\n    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight\n  }\n\n  // Ensure the lineView.wrapping.heights array is populated. This is\n  // an array of bottom offsets for the lines that make up a drawn\n  // line. When lineWrapping is on, there might be more than one\n  // height.\n  function ensureLineHeights(cm, lineView, rect) {\n    var wrapping = cm.options.lineWrapping;\n    var curWidth = wrapping && displayWidth(cm);\n    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {\n      var heights = lineView.measure.heights = [];\n      if (wrapping) {\n        lineView.measure.width = curWidth;\n        var rects = lineView.text.firstChild.getClientRects();\n        for (var i = 0; i < rects.length - 1; i++) {\n          var cur = rects[i], next = rects[i + 1];\n          if (Math.abs(cur.bottom - next.bottom) > 2)\n            { heights.push((cur.bottom + next.top) / 2 - rect.top); }\n        }\n      }\n      heights.push(rect.bottom - rect.top);\n    }\n  }\n\n  // Find a line map (mapping character offsets to text nodes) and a\n  // measurement cache for the given line number. (A line view might\n  // contain multiple lines when collapsed ranges are present.)\n  function mapFromLineView(lineView, line, lineN) {\n    if (lineView.line == line)\n      { return {map: lineView.measure.map, cache: lineView.measure.cache} }\n    for (var i = 0; i < lineView.rest.length; i++)\n      { if (lineView.rest[i] == line)\n        { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }\n    for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)\n      { if (lineNo(lineView.rest[i$1]) > lineN)\n        { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }\n  }\n\n  // Render a line into the hidden node display.externalMeasured. Used\n  // when measurement is needed for a line that's not in the viewport.\n  function updateExternalMeasurement(cm, line) {\n    line = visualLine(line);\n    var lineN = lineNo(line);\n    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);\n    view.lineN = lineN;\n    var built = view.built = buildLineContent(cm, view);\n    view.text = built.pre;\n    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);\n    return view\n  }\n\n  // Get a {top, bottom, left, right} box (in line-local coordinates)\n  // for a given character.\n  function measureChar(cm, line, ch, bias) {\n    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)\n  }\n\n  // Find a line view that corresponds to the given line number.\n  function findViewForLine(cm, lineN) {\n    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)\n      { return cm.display.view[findViewIndex(cm, lineN)] }\n    var ext = cm.display.externalMeasured;\n    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)\n      { return ext }\n  }\n\n  // Measurement can be split in two steps, the set-up work that\n  // applies to the whole line, and the measurement of the actual\n  // character. Functions like coordsChar, that need to do a lot of\n  // measurements in a row, can thus ensure that the set-up work is\n  // only done once.\n  function prepareMeasureForLine(cm, line) {\n    var lineN = lineNo(line);\n    var view = findViewForLine(cm, lineN);\n    if (view && !view.text) {\n      view = null;\n    } else if (view && view.changes) {\n      updateLineForChanges(cm, view, lineN, getDimensions(cm));\n      cm.curOp.forceUpdate = true;\n    }\n    if (!view)\n      { view = updateExternalMeasurement(cm, line); }\n\n    var info = mapFromLineView(view, line, lineN);\n    return {\n      line: line, view: view, rect: null,\n      map: info.map, cache: info.cache, before: info.before,\n      hasHeights: false\n    }\n  }\n\n  // Given a prepared measurement object, measures the position of an\n  // actual character (or fetches it from the cache).\n  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {\n    if (prepared.before) { ch = -1; }\n    var key = ch + (bias || \"\"), found;\n    if (prepared.cache.hasOwnProperty(key)) {\n      found = prepared.cache[key];\n    } else {\n      if (!prepared.rect)\n        { prepared.rect = prepared.view.text.getBoundingClientRect(); }\n      if (!prepared.hasHeights) {\n        ensureLineHeights(cm, prepared.view, prepared.rect);\n        prepared.hasHeights = true;\n      }\n      found = measureCharInner(cm, prepared, ch, bias);\n      if (!found.bogus) { prepared.cache[key] = found; }\n    }\n    return {left: found.left, right: found.right,\n            top: varHeight ? found.rtop : found.top,\n            bottom: varHeight ? found.rbottom : found.bottom}\n  }\n\n  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};\n\n  function nodeAndOffsetInLineMap(map, ch, bias) {\n    var node, start, end, collapse, mStart, mEnd;\n    // First, search the line map for the text node corresponding to,\n    // or closest to, the target character.\n    for (var i = 0; i < map.length; i += 3) {\n      mStart = map[i];\n      mEnd = map[i + 1];\n      if (ch < mStart) {\n        start = 0; end = 1;\n        collapse = \"left\";\n      } else if (ch < mEnd) {\n        start = ch - mStart;\n        end = start + 1;\n      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {\n        end = mEnd - mStart;\n        start = end - 1;\n        if (ch >= mEnd) { collapse = \"right\"; }\n      }\n      if (start != null) {\n        node = map[i + 2];\n        if (mStart == mEnd && bias == (node.insertLeft ? \"left\" : \"right\"))\n          { collapse = bias; }\n        if (bias == \"left\" && start == 0)\n          { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {\n            node = map[(i -= 3) + 2];\n            collapse = \"left\";\n          } }\n        if (bias == \"right\" && start == mEnd - mStart)\n          { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {\n            node = map[(i += 3) + 2];\n            collapse = \"right\";\n          } }\n        break\n      }\n    }\n    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}\n  }\n\n  function getUsefulRect(rects, bias) {\n    var rect = nullRect;\n    if (bias == \"left\") { for (var i = 0; i < rects.length; i++) {\n      if ((rect = rects[i]).left != rect.right) { break }\n    } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {\n      if ((rect = rects[i$1]).left != rect.right) { break }\n    } }\n    return rect\n  }\n\n  function measureCharInner(cm, prepared, ch, bias) {\n    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);\n    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;\n\n    var rect;\n    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.\n      for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned\n        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }\n        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }\n        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)\n          { rect = node.parentNode.getBoundingClientRect(); }\n        else\n          { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }\n        if (rect.left || rect.right || start == 0) { break }\n        end = start;\n        start = start - 1;\n        collapse = \"right\";\n      }\n      if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }\n    } else { // If it is a widget, simply get the box for the whole widget.\n      if (start > 0) { collapse = bias = \"right\"; }\n      var rects;\n      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)\n        { rect = rects[bias == \"right\" ? rects.length - 1 : 0]; }\n      else\n        { rect = node.getBoundingClientRect(); }\n    }\n    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {\n      var rSpan = node.parentNode.getClientRects()[0];\n      if (rSpan)\n        { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }\n      else\n        { rect = nullRect; }\n    }\n\n    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;\n    var mid = (rtop + rbot) / 2;\n    var heights = prepared.view.measure.heights;\n    var i = 0;\n    for (; i < heights.length - 1; i++)\n      { if (mid < heights[i]) { break } }\n    var top = i ? heights[i - 1] : 0, bot = heights[i];\n    var result = {left: (collapse == \"right\" ? rect.right : rect.left) - prepared.rect.left,\n                  right: (collapse == \"left\" ? rect.left : rect.right) - prepared.rect.left,\n                  top: top, bottom: bot};\n    if (!rect.left && !rect.right) { result.bogus = true; }\n    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }\n\n    return result\n  }\n\n  // Work around problem with bounding client rects on ranges being\n  // returned incorrectly when zoomed on IE10 and below.\n  function maybeUpdateRectForZooming(measure, rect) {\n    if (!window.screen || screen.logicalXDPI == null ||\n        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))\n      { return rect }\n    var scaleX = screen.logicalXDPI / screen.deviceXDPI;\n    var scaleY = screen.logicalYDPI / screen.deviceYDPI;\n    return {left: rect.left * scaleX, right: rect.right * scaleX,\n            top: rect.top * scaleY, bottom: rect.bottom * scaleY}\n  }\n\n  function clearLineMeasurementCacheFor(lineView) {\n    if (lineView.measure) {\n      lineView.measure.cache = {};\n      lineView.measure.heights = null;\n      if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n        { lineView.measure.caches[i] = {}; } }\n    }\n  }\n\n  function clearLineMeasurementCache(cm) {\n    cm.display.externalMeasure = null;\n    removeChildren(cm.display.lineMeasure);\n    for (var i = 0; i < cm.display.view.length; i++)\n      { clearLineMeasurementCacheFor(cm.display.view[i]); }\n  }\n\n  function clearCaches(cm) {\n    clearLineMeasurementCache(cm);\n    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;\n    if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }\n    cm.display.lineNumChars = null;\n  }\n\n  function pageScrollX() {\n    // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206\n    // which causes page_Offset and bounding client rects to use\n    // different reference viewports and invalidate our calculations.\n    if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }\n    return window.pageXOffset || (document.documentElement || document.body).scrollLeft\n  }\n  function pageScrollY() {\n    if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }\n    return window.pageYOffset || (document.documentElement || document.body).scrollTop\n  }\n\n  function widgetTopHeight(lineObj) {\n    var height = 0;\n    if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)\n      { height += widgetHeight(lineObj.widgets[i]); } } }\n    return height\n  }\n\n  // Converts a {top, bottom, left, right} box from line-local\n  // coordinates into another coordinate system. Context may be one of\n  // \"line\", \"div\" (display.lineDiv), \"local\"./null (editor), \"window\",\n  // or \"page\".\n  function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {\n    if (!includeWidgets) {\n      var height = widgetTopHeight(lineObj);\n      rect.top += height; rect.bottom += height;\n    }\n    if (context == \"line\") { return rect }\n    if (!context) { context = \"local\"; }\n    var yOff = heightAtLine(lineObj);\n    if (context == \"local\") { yOff += paddingTop(cm.display); }\n    else { yOff -= cm.display.viewOffset; }\n    if (context == \"page\" || context == \"window\") {\n      var lOff = cm.display.lineSpace.getBoundingClientRect();\n      yOff += lOff.top + (context == \"window\" ? 0 : pageScrollY());\n      var xOff = lOff.left + (context == \"window\" ? 0 : pageScrollX());\n      rect.left += xOff; rect.right += xOff;\n    }\n    rect.top += yOff; rect.bottom += yOff;\n    return rect\n  }\n\n  // Coverts a box from \"div\" coords to another coordinate system.\n  // Context may be \"window\", \"page\", \"div\", or \"local\"./null.\n  function fromCoordSystem(cm, coords, context) {\n    if (context == \"div\") { return coords }\n    var left = coords.left, top = coords.top;\n    // First move into \"page\" coordinate system\n    if (context == \"page\") {\n      left -= pageScrollX();\n      top -= pageScrollY();\n    } else if (context == \"local\" || !context) {\n      var localBox = cm.display.sizer.getBoundingClientRect();\n      left += localBox.left;\n      top += localBox.top;\n    }\n\n    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();\n    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}\n  }\n\n  function charCoords(cm, pos, context, lineObj, bias) {\n    if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }\n    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)\n  }\n\n  // Returns a box for a given cursor position, which may have an\n  // 'other' property containing the position of the secondary cursor\n  // on a bidi boundary.\n  // A cursor Pos(line, char, \"before\") is on the same visual line as `char - 1`\n  // and after `char - 1` in writing order of `char - 1`\n  // A cursor Pos(line, char, \"after\") is on the same visual line as `char`\n  // and before `char` in writing order of `char`\n  // Examples (upper-case letters are RTL, lower-case are LTR):\n  //     Pos(0, 1, ...)\n  //     before   after\n  // ab     a|b     a|b\n  // aB     a|B     aB|\n  // Ab     |Ab     A|b\n  // AB     B|A     B|A\n  // Every position after the last character on a line is considered to stick\n  // to the last character on the line.\n  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {\n    lineObj = lineObj || getLine(cm.doc, pos.line);\n    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }\n    function get(ch, right) {\n      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? \"right\" : \"left\", varHeight);\n      if (right) { m.left = m.right; } else { m.right = m.left; }\n      return intoCoordSystem(cm, lineObj, m, context)\n    }\n    var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;\n    if (ch >= lineObj.text.length) {\n      ch = lineObj.text.length;\n      sticky = \"before\";\n    } else if (ch <= 0) {\n      ch = 0;\n      sticky = \"after\";\n    }\n    if (!order) { return get(sticky == \"before\" ? ch - 1 : ch, sticky == \"before\") }\n\n    function getBidi(ch, partPos, invert) {\n      var part = order[partPos], right = part.level == 1;\n      return get(invert ? ch - 1 : ch, right != invert)\n    }\n    var partPos = getBidiPartAt(order, ch, sticky);\n    var other = bidiOther;\n    var val = getBidi(ch, partPos, sticky == \"before\");\n    if (other != null) { val.other = getBidi(ch, other, sticky != \"before\"); }\n    return val\n  }\n\n  // Used to cheaply estimate the coordinates for a position. Used for\n  // intermediate scroll updates.\n  function estimateCoords(cm, pos) {\n    var left = 0;\n    pos = clipPos(cm.doc, pos);\n    if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }\n    var lineObj = getLine(cm.doc, pos.line);\n    var top = heightAtLine(lineObj) + paddingTop(cm.display);\n    return {left: left, right: left, top: top, bottom: top + lineObj.height}\n  }\n\n  // Positions returned by coordsChar contain some extra information.\n  // xRel is the relative x position of the input coordinates compared\n  // to the found position (so xRel > 0 means the coordinates are to\n  // the right of the character position, for example). When outside\n  // is true, that means the coordinates lie outside the line's\n  // vertical range.\n  function PosWithInfo(line, ch, sticky, outside, xRel) {\n    var pos = Pos(line, ch, sticky);\n    pos.xRel = xRel;\n    if (outside) { pos.outside = outside; }\n    return pos\n  }\n\n  // Compute the character position closest to the given coordinates.\n  // Input must be lineSpace-local (\"div\" coordinate system).\n  function coordsChar(cm, x, y) {\n    var doc = cm.doc;\n    y += cm.display.viewOffset;\n    if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }\n    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;\n    if (lineN > last)\n      { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }\n    if (x < 0) { x = 0; }\n\n    var lineObj = getLine(doc, lineN);\n    for (;;) {\n      var found = coordsCharInner(cm, lineObj, lineN, x, y);\n      var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));\n      if (!collapsed) { return found }\n      var rangeEnd = collapsed.find(1);\n      if (rangeEnd.line == lineN) { return rangeEnd }\n      lineObj = getLine(doc, lineN = rangeEnd.line);\n    }\n  }\n\n  function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {\n    y -= widgetTopHeight(lineObj);\n    var end = lineObj.text.length;\n    var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);\n    end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);\n    return {begin: begin, end: end}\n  }\n\n  function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {\n    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }\n    var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), \"line\").top;\n    return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)\n  }\n\n  // Returns true if the given side of a box is after the given\n  // coordinates, in top-to-bottom, left-to-right order.\n  function boxIsAfter(box, x, y, left) {\n    return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x\n  }\n\n  function coordsCharInner(cm, lineObj, lineNo, x, y) {\n    // Move y into line-local coordinate space\n    y -= heightAtLine(lineObj);\n    var preparedMeasure = prepareMeasureForLine(cm, lineObj);\n    // When directly calling `measureCharPrepared`, we have to adjust\n    // for the widgets at this line.\n    var widgetHeight = widgetTopHeight(lineObj);\n    var begin = 0, end = lineObj.text.length, ltr = true;\n\n    var order = getOrder(lineObj, cm.doc.direction);\n    // If the line isn't plain left-to-right text, first figure out\n    // which bidi section the coordinates fall into.\n    if (order) {\n      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)\n                   (cm, lineObj, lineNo, preparedMeasure, order, x, y);\n      ltr = part.level != 1;\n      // The awkward -1 offsets are needed because findFirst (called\n      // on these below) will treat its first bound as inclusive,\n      // second as exclusive, but we want to actually address the\n      // characters in the part's range\n      begin = ltr ? part.from : part.to - 1;\n      end = ltr ? part.to : part.from - 1;\n    }\n\n    // A binary search to find the first character whose bounding box\n    // starts after the coordinates. If we run across any whose box wrap\n    // the coordinates, store that.\n    var chAround = null, boxAround = null;\n    var ch = findFirst(function (ch) {\n      var box = measureCharPrepared(cm, preparedMeasure, ch);\n      box.top += widgetHeight; box.bottom += widgetHeight;\n      if (!boxIsAfter(box, x, y, false)) { return false }\n      if (box.top <= y && box.left <= x) {\n        chAround = ch;\n        boxAround = box;\n      }\n      return true\n    }, begin, end);\n\n    var baseX, sticky, outside = false;\n    // If a box around the coordinates was found, use that\n    if (boxAround) {\n      // Distinguish coordinates nearer to the left or right side of the box\n      var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;\n      ch = chAround + (atStart ? 0 : 1);\n      sticky = atStart ? \"after\" : \"before\";\n      baseX = atLeft ? boxAround.left : boxAround.right;\n    } else {\n      // (Adjust for extended bound, if necessary.)\n      if (!ltr && (ch == end || ch == begin)) { ch++; }\n      // To determine which side to associate with, get the box to the\n      // left of the character and compare it's vertical position to the\n      // coordinates\n      sticky = ch == 0 ? \"after\" : ch == lineObj.text.length ? \"before\" :\n        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?\n        \"after\" : \"before\";\n      // Now get accurate coordinates for this place, in order to get a\n      // base X position\n      var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), \"line\", lineObj, preparedMeasure);\n      baseX = coords.left;\n      outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;\n    }\n\n    ch = skipExtendingChars(lineObj.text, ch, 1);\n    return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)\n  }\n\n  function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {\n    // Bidi parts are sorted left-to-right, and in a non-line-wrapping\n    // situation, we can take this ordering to correspond to the visual\n    // ordering. This finds the first part whose end is after the given\n    // coordinates.\n    var index = findFirst(function (i) {\n      var part = order[i], ltr = part.level != 1;\n      return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? \"before\" : \"after\"),\n                                     \"line\", lineObj, preparedMeasure), x, y, true)\n    }, 0, order.length - 1);\n    var part = order[index];\n    // If this isn't the first part, the part's start is also after\n    // the coordinates, and the coordinates aren't on the same line as\n    // that start, move one part back.\n    if (index > 0) {\n      var ltr = part.level != 1;\n      var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? \"after\" : \"before\"),\n                               \"line\", lineObj, preparedMeasure);\n      if (boxIsAfter(start, x, y, true) && start.top > y)\n        { part = order[index - 1]; }\n    }\n    return part\n  }\n\n  function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {\n    // In a wrapped line, rtl text on wrapping boundaries can do things\n    // that don't correspond to the ordering in our `order` array at\n    // all, so a binary search doesn't work, and we want to return a\n    // part that only spans one line so that the binary search in\n    // coordsCharInner is safe. As such, we first find the extent of the\n    // wrapped line, and then do a flat search in which we discard any\n    // spans that aren't on the line.\n    var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);\n    var begin = ref.begin;\n    var end = ref.end;\n    if (/\\s/.test(lineObj.text.charAt(end - 1))) { end--; }\n    var part = null, closestDist = null;\n    for (var i = 0; i < order.length; i++) {\n      var p = order[i];\n      if (p.from >= end || p.to <= begin) { continue }\n      var ltr = p.level != 1;\n      var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;\n      // Weigh against spans ending before this, so that they are only\n      // picked if nothing ends after\n      var dist = endX < x ? x - endX + 1e9 : endX - x;\n      if (!part || closestDist > dist) {\n        part = p;\n        closestDist = dist;\n      }\n    }\n    if (!part) { part = order[order.length - 1]; }\n    // Clip the part to the wrapped line.\n    if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }\n    if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }\n    return part\n  }\n\n  var measureText;\n  // Compute the default text height.\n  function textHeight(display) {\n    if (display.cachedTextHeight != null) { return display.cachedTextHeight }\n    if (measureText == null) {\n      measureText = elt(\"pre\", null, \"CodeMirror-line-like\");\n      // Measure a bunch of lines, for browsers that compute\n      // fractional heights.\n      for (var i = 0; i < 49; ++i) {\n        measureText.appendChild(document.createTextNode(\"x\"));\n        measureText.appendChild(elt(\"br\"));\n      }\n      measureText.appendChild(document.createTextNode(\"x\"));\n    }\n    removeChildrenAndAdd(display.measure, measureText);\n    var height = measureText.offsetHeight / 50;\n    if (height > 3) { display.cachedTextHeight = height; }\n    removeChildren(display.measure);\n    return height || 1\n  }\n\n  // Compute the default character width.\n  function charWidth(display) {\n    if (display.cachedCharWidth != null) { return display.cachedCharWidth }\n    var anchor = elt(\"span\", \"xxxxxxxxxx\");\n    var pre = elt(\"pre\", [anchor], \"CodeMirror-line-like\");\n    removeChildrenAndAdd(display.measure, pre);\n    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;\n    if (width > 2) { display.cachedCharWidth = width; }\n    return width || 10\n  }\n\n  // Do a bulk-read of the DOM positions and sizes needed to draw the\n  // view, so that we don't interleave reading and writing to the DOM.\n  function getDimensions(cm) {\n    var d = cm.display, left = {}, width = {};\n    var gutterLeft = d.gutters.clientLeft;\n    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {\n      var id = cm.display.gutterSpecs[i].className;\n      left[id] = n.offsetLeft + n.clientLeft + gutterLeft;\n      width[id] = n.clientWidth;\n    }\n    return {fixedPos: compensateForHScroll(d),\n            gutterTotalWidth: d.gutters.offsetWidth,\n            gutterLeft: left,\n            gutterWidth: width,\n            wrapperWidth: d.wrapper.clientWidth}\n  }\n\n  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,\n  // but using getBoundingClientRect to get a sub-pixel-accurate\n  // result.\n  function compensateForHScroll(display) {\n    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left\n  }\n\n  // Returns a function that estimates the height of a line, to use as\n  // first approximation until the line becomes visible (and is thus\n  // properly measurable).\n  function estimateHeight(cm) {\n    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;\n    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);\n    return function (line) {\n      if (lineIsHidden(cm.doc, line)) { return 0 }\n\n      var widgetsHeight = 0;\n      if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {\n        if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }\n      } }\n\n      if (wrapping)\n        { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }\n      else\n        { return widgetsHeight + th }\n    }\n  }\n\n  function estimateLineHeights(cm) {\n    var doc = cm.doc, est = estimateHeight(cm);\n    doc.iter(function (line) {\n      var estHeight = est(line);\n      if (estHeight != line.height) { updateLineHeight(line, estHeight); }\n    });\n  }\n\n  // Given a mouse event, find the corresponding position. If liberal\n  // is false, it checks whether a gutter or scrollbar was clicked,\n  // and returns null if it was. forRect is used by rectangular\n  // selections, and tries to estimate a character position even for\n  // coordinates beyond the right of the text.\n  function posFromMouse(cm, e, liberal, forRect) {\n    var display = cm.display;\n    if (!liberal && e_target(e).getAttribute(\"cm-not-content\") == \"true\") { return null }\n\n    var x, y, space = display.lineSpace.getBoundingClientRect();\n    // Fails unpredictably on IE[67] when mouse is dragged around quickly.\n    try { x = e.clientX - space.left; y = e.clientY - space.top; }\n    catch (e) { return null }\n    var coords = coordsChar(cm, x, y), line;\n    if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {\n      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;\n      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));\n    }\n    return coords\n  }\n\n  // Find the view element corresponding to a given line. Return null\n  // when the line isn't visible.\n  function findViewIndex(cm, n) {\n    if (n >= cm.display.viewTo) { return null }\n    n -= cm.display.viewFrom;\n    if (n < 0) { return null }\n    var view = cm.display.view;\n    for (var i = 0; i < view.length; i++) {\n      n -= view[i].size;\n      if (n < 0) { return i }\n    }\n  }\n\n  // Updates the display.view data structure for a given change to the\n  // document. From and to are in pre-change coordinates. Lendiff is\n  // the amount of lines added or subtracted by the change. This is\n  // used for changes that span multiple lines, or change the way\n  // lines are divided into visual lines. regLineChange (below)\n  // registers single-line changes.\n  function regChange(cm, from, to, lendiff) {\n    if (from == null) { from = cm.doc.first; }\n    if (to == null) { to = cm.doc.first + cm.doc.size; }\n    if (!lendiff) { lendiff = 0; }\n\n    var display = cm.display;\n    if (lendiff && to < display.viewTo &&\n        (display.updateLineNumbers == null || display.updateLineNumbers > from))\n      { display.updateLineNumbers = from; }\n\n    cm.curOp.viewChanged = true;\n\n    if (from >= display.viewTo) { // Change after\n      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)\n        { resetView(cm); }\n    } else if (to <= display.viewFrom) { // Change before\n      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {\n        resetView(cm);\n      } else {\n        display.viewFrom += lendiff;\n        display.viewTo += lendiff;\n      }\n    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap\n      resetView(cm);\n    } else if (from <= display.viewFrom) { // Top overlap\n      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);\n      if (cut) {\n        display.view = display.view.slice(cut.index);\n        display.viewFrom = cut.lineN;\n        display.viewTo += lendiff;\n      } else {\n        resetView(cm);\n      }\n    } else if (to >= display.viewTo) { // Bottom overlap\n      var cut$1 = viewCuttingPoint(cm, from, from, -1);\n      if (cut$1) {\n        display.view = display.view.slice(0, cut$1.index);\n        display.viewTo = cut$1.lineN;\n      } else {\n        resetView(cm);\n      }\n    } else { // Gap in the middle\n      var cutTop = viewCuttingPoint(cm, from, from, -1);\n      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);\n      if (cutTop && cutBot) {\n        display.view = display.view.slice(0, cutTop.index)\n          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))\n          .concat(display.view.slice(cutBot.index));\n        display.viewTo += lendiff;\n      } else {\n        resetView(cm);\n      }\n    }\n\n    var ext = display.externalMeasured;\n    if (ext) {\n      if (to < ext.lineN)\n        { ext.lineN += lendiff; }\n      else if (from < ext.lineN + ext.size)\n        { display.externalMeasured = null; }\n    }\n  }\n\n  // Register a change to a single line. Type must be one of \"text\",\n  // \"gutter\", \"class\", \"widget\"\n  function regLineChange(cm, line, type) {\n    cm.curOp.viewChanged = true;\n    var display = cm.display, ext = cm.display.externalMeasured;\n    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)\n      { display.externalMeasured = null; }\n\n    if (line < display.viewFrom || line >= display.viewTo) { return }\n    var lineView = display.view[findViewIndex(cm, line)];\n    if (lineView.node == null) { return }\n    var arr = lineView.changes || (lineView.changes = []);\n    if (indexOf(arr, type) == -1) { arr.push(type); }\n  }\n\n  // Clear the view.\n  function resetView(cm) {\n    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;\n    cm.display.view = [];\n    cm.display.viewOffset = 0;\n  }\n\n  function viewCuttingPoint(cm, oldN, newN, dir) {\n    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;\n    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)\n      { return {index: index, lineN: newN} }\n    var n = cm.display.viewFrom;\n    for (var i = 0; i < index; i++)\n      { n += view[i].size; }\n    if (n != oldN) {\n      if (dir > 0) {\n        if (index == view.length - 1) { return null }\n        diff = (n + view[index].size) - oldN;\n        index++;\n      } else {\n        diff = n - oldN;\n      }\n      oldN += diff; newN += diff;\n    }\n    while (visualLineNo(cm.doc, newN) != newN) {\n      if (index == (dir < 0 ? 0 : view.length - 1)) { return null }\n      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;\n      index += dir;\n    }\n    return {index: index, lineN: newN}\n  }\n\n  // Force the view to cover a given range, adding empty view element\n  // or clipping off existing ones as needed.\n  function adjustView(cm, from, to) {\n    var display = cm.display, view = display.view;\n    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {\n      display.view = buildViewArray(cm, from, to);\n      display.viewFrom = from;\n    } else {\n      if (display.viewFrom > from)\n        { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }\n      else if (display.viewFrom < from)\n        { display.view = display.view.slice(findViewIndex(cm, from)); }\n      display.viewFrom = from;\n      if (display.viewTo < to)\n        { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }\n      else if (display.viewTo > to)\n        { display.view = display.view.slice(0, findViewIndex(cm, to)); }\n    }\n    display.viewTo = to;\n  }\n\n  // Count the number of lines in the view whose DOM representation is\n  // out of date (or nonexistent).\n  function countDirtyView(cm) {\n    var view = cm.display.view, dirty = 0;\n    for (var i = 0; i < view.length; i++) {\n      var lineView = view[i];\n      if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }\n    }\n    return dirty\n  }\n\n  function updateSelection(cm) {\n    cm.display.input.showSelection(cm.display.input.prepareSelection());\n  }\n\n  function prepareSelection(cm, primary) {\n    if ( primary === void 0 ) primary = true;\n\n    var doc = cm.doc, result = {};\n    var curFragment = result.cursors = document.createDocumentFragment();\n    var selFragment = result.selection = document.createDocumentFragment();\n\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\n      if (!primary && i == doc.sel.primIndex) { continue }\n      var range = doc.sel.ranges[i];\n      if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }\n      var collapsed = range.empty();\n      if (collapsed || cm.options.showCursorWhenSelecting)\n        { drawSelectionCursor(cm, range.head, curFragment); }\n      if (!collapsed)\n        { drawSelectionRange(cm, range, selFragment); }\n    }\n    return result\n  }\n\n  // Draws a cursor for the given range\n  function drawSelectionCursor(cm, head, output) {\n    var pos = cursorCoords(cm, head, \"div\", null, null, !cm.options.singleCursorHeightPerLine);\n\n    var cursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor\"));\n    cursor.style.left = pos.left + \"px\";\n    cursor.style.top = pos.top + \"px\";\n    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + \"px\";\n\n    if (pos.other) {\n      // Secondary cursor, shown when on a 'jump' in bi-directional text\n      var otherCursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor CodeMirror-secondarycursor\"));\n      otherCursor.style.display = \"\";\n      otherCursor.style.left = pos.other.left + \"px\";\n      otherCursor.style.top = pos.other.top + \"px\";\n      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + \"px\";\n    }\n  }\n\n  function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }\n\n  // Draws the given range as a highlighted selection\n  function drawSelectionRange(cm, range, output) {\n    var display = cm.display, doc = cm.doc;\n    var fragment = document.createDocumentFragment();\n    var padding = paddingH(cm.display), leftSide = padding.left;\n    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;\n    var docLTR = doc.direction == \"ltr\";\n\n    function add(left, top, width, bottom) {\n      if (top < 0) { top = 0; }\n      top = Math.round(top);\n      bottom = Math.round(bottom);\n      fragment.appendChild(elt(\"div\", null, \"CodeMirror-selected\", (\"position: absolute; left: \" + left + \"px;\\n                             top: \" + top + \"px; width: \" + (width == null ? rightSide - left : width) + \"px;\\n                             height: \" + (bottom - top) + \"px\")));\n    }\n\n    function drawForLine(line, fromArg, toArg) {\n      var lineObj = getLine(doc, line);\n      var lineLen = lineObj.text.length;\n      var start, end;\n      function coords(ch, bias) {\n        return charCoords(cm, Pos(line, ch), \"div\", lineObj, bias)\n      }\n\n      function wrapX(pos, dir, side) {\n        var extent = wrappedLineExtentChar(cm, lineObj, null, pos);\n        var prop = (dir == \"ltr\") == (side == \"after\") ? \"left\" : \"right\";\n        var ch = side == \"after\" ? extent.begin : extent.end - (/\\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);\n        return coords(ch, prop)[prop]\n      }\n\n      var order = getOrder(lineObj, doc.direction);\n      iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {\n        var ltr = dir == \"ltr\";\n        var fromPos = coords(from, ltr ? \"left\" : \"right\");\n        var toPos = coords(to - 1, ltr ? \"right\" : \"left\");\n\n        var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;\n        var first = i == 0, last = !order || i == order.length - 1;\n        if (toPos.top - fromPos.top <= 3) { // Single line\n          var openLeft = (docLTR ? openStart : openEnd) && first;\n          var openRight = (docLTR ? openEnd : openStart) && last;\n          var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;\n          var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;\n          add(left, fromPos.top, right - left, fromPos.bottom);\n        } else { // Multiple lines\n          var topLeft, topRight, botLeft, botRight;\n          if (ltr) {\n            topLeft = docLTR && openStart && first ? leftSide : fromPos.left;\n            topRight = docLTR ? rightSide : wrapX(from, dir, \"before\");\n            botLeft = docLTR ? leftSide : wrapX(to, dir, \"after\");\n            botRight = docLTR && openEnd && last ? rightSide : toPos.right;\n          } else {\n            topLeft = !docLTR ? leftSide : wrapX(from, dir, \"before\");\n            topRight = !docLTR && openStart && first ? rightSide : fromPos.right;\n            botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;\n            botRight = !docLTR ? rightSide : wrapX(to, dir, \"after\");\n          }\n          add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);\n          if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }\n          add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);\n        }\n\n        if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }\n        if (cmpCoords(toPos, start) < 0) { start = toPos; }\n        if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }\n        if (cmpCoords(toPos, end) < 0) { end = toPos; }\n      });\n      return {start: start, end: end}\n    }\n\n    var sFrom = range.from(), sTo = range.to();\n    if (sFrom.line == sTo.line) {\n      drawForLine(sFrom.line, sFrom.ch, sTo.ch);\n    } else {\n      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);\n      var singleVLine = visualLine(fromLine) == visualLine(toLine);\n      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;\n      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;\n      if (singleVLine) {\n        if (leftEnd.top < rightStart.top - 2) {\n          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);\n          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);\n        } else {\n          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);\n        }\n      }\n      if (leftEnd.bottom < rightStart.top)\n        { add(leftSide, leftEnd.bottom, null, rightStart.top); }\n    }\n\n    output.appendChild(fragment);\n  }\n\n  // Cursor-blinking\n  function restartBlink(cm) {\n    if (!cm.state.focused) { return }\n    var display = cm.display;\n    clearInterval(display.blinker);\n    var on = true;\n    display.cursorDiv.style.visibility = \"\";\n    if (cm.options.cursorBlinkRate > 0)\n      { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? \"\" : \"hidden\"; },\n        cm.options.cursorBlinkRate); }\n    else if (cm.options.cursorBlinkRate < 0)\n      { display.cursorDiv.style.visibility = \"hidden\"; }\n  }\n\n  function ensureFocus(cm) {\n    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }\n  }\n\n  function delayBlurEvent(cm) {\n    cm.state.delayingBlurEvent = true;\n    setTimeout(function () { if (cm.state.delayingBlurEvent) {\n      cm.state.delayingBlurEvent = false;\n      onBlur(cm);\n    } }, 100);\n  }\n\n  function onFocus(cm, e) {\n    if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }\n\n    if (cm.options.readOnly == \"nocursor\") { return }\n    if (!cm.state.focused) {\n      signal(cm, \"focus\", cm, e);\n      cm.state.focused = true;\n      addClass(cm.display.wrapper, \"CodeMirror-focused\");\n      // This test prevents this from firing when a context\n      // menu is closed (since the input reset would kill the\n      // select-all detection hack)\n      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {\n        cm.display.input.reset();\n        if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730\n      }\n      cm.display.input.receivedFocus();\n    }\n    restartBlink(cm);\n  }\n  function onBlur(cm, e) {\n    if (cm.state.delayingBlurEvent) { return }\n\n    if (cm.state.focused) {\n      signal(cm, \"blur\", cm, e);\n      cm.state.focused = false;\n      rmClass(cm.display.wrapper, \"CodeMirror-focused\");\n    }\n    clearInterval(cm.display.blinker);\n    setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);\n  }\n\n  // Read the actual heights of the rendered lines, and update their\n  // stored heights to match.\n  function updateHeightsInViewport(cm) {\n    var display = cm.display;\n    var prevBottom = display.lineDiv.offsetTop;\n    for (var i = 0; i < display.view.length; i++) {\n      var cur = display.view[i], wrapping = cm.options.lineWrapping;\n      var height = (void 0), width = 0;\n      if (cur.hidden) { continue }\n      if (ie && ie_version < 8) {\n        var bot = cur.node.offsetTop + cur.node.offsetHeight;\n        height = bot - prevBottom;\n        prevBottom = bot;\n      } else {\n        var box = cur.node.getBoundingClientRect();\n        height = box.bottom - box.top;\n        // Check that lines don't extend past the right of the current\n        // editor width\n        if (!wrapping && cur.text.firstChild)\n          { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }\n      }\n      var diff = cur.line.height - height;\n      if (diff > .005 || diff < -.005) {\n        updateLineHeight(cur.line, height);\n        updateWidgetHeight(cur.line);\n        if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)\n          { updateWidgetHeight(cur.rest[j]); } }\n      }\n      if (width > cm.display.sizerWidth) {\n        var chWidth = Math.ceil(width / charWidth(cm.display));\n        if (chWidth > cm.display.maxLineLength) {\n          cm.display.maxLineLength = chWidth;\n          cm.display.maxLine = cur.line;\n          cm.display.maxLineChanged = true;\n        }\n      }\n    }\n  }\n\n  // Read and store the height of line widgets associated with the\n  // given line.\n  function updateWidgetHeight(line) {\n    if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {\n      var w = line.widgets[i], parent = w.node.parentNode;\n      if (parent) { w.height = parent.offsetHeight; }\n    } }\n  }\n\n  // Compute the lines that are visible in a given viewport (defaults\n  // the the current scroll position). viewport may contain top,\n  // height, and ensure (see op.scrollToPos) properties.\n  function visibleLines(display, doc, viewport) {\n    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;\n    top = Math.floor(top - paddingTop(display));\n    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;\n\n    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);\n    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and\n    // forces those lines into the viewport (if possible).\n    if (viewport && viewport.ensure) {\n      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;\n      if (ensureFrom < from) {\n        from = ensureFrom;\n        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);\n      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {\n        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);\n        to = ensureTo;\n      }\n    }\n    return {from: from, to: Math.max(to, from + 1)}\n  }\n\n  // SCROLLING THINGS INTO VIEW\n\n  // If an editor sits on the top or bottom of the window, partially\n  // scrolled out of view, this ensures that the cursor is visible.\n  function maybeScrollWindow(cm, rect) {\n    if (signalDOMEvent(cm, \"scrollCursorIntoView\")) { return }\n\n    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;\n    if (rect.top + box.top < 0) { doScroll = true; }\n    else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }\n    if (doScroll != null && !phantom) {\n      var scrollNode = elt(\"div\", \"\\u200b\", null, (\"position: absolute;\\n                         top: \" + (rect.top - display.viewOffset - paddingTop(cm.display)) + \"px;\\n                         height: \" + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + \"px;\\n                         left: \" + (rect.left) + \"px; width: \" + (Math.max(2, rect.right - rect.left)) + \"px;\"));\n      cm.display.lineSpace.appendChild(scrollNode);\n      scrollNode.scrollIntoView(doScroll);\n      cm.display.lineSpace.removeChild(scrollNode);\n    }\n  }\n\n  // Scroll a given position into view (immediately), verifying that\n  // it actually became visible (as line heights are accurately\n  // measured, the position of something may 'drift' during drawing).\n  function scrollPosIntoView(cm, pos, end, margin) {\n    if (margin == null) { margin = 0; }\n    var rect;\n    if (!cm.options.lineWrapping && pos == end) {\n      // Set pos and end to the cursor positions around the character pos sticks to\n      // If pos.sticky == \"before\", that is around pos.ch - 1, otherwise around pos.ch\n      // If pos == Pos(_, 0, \"before\"), pos and end are unchanged\n      pos = pos.ch ? Pos(pos.line, pos.sticky == \"before\" ? pos.ch - 1 : pos.ch, \"after\") : pos;\n      end = pos.sticky == \"before\" ? Pos(pos.line, pos.ch + 1, \"before\") : pos;\n    }\n    for (var limit = 0; limit < 5; limit++) {\n      var changed = false;\n      var coords = cursorCoords(cm, pos);\n      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);\n      rect = {left: Math.min(coords.left, endCoords.left),\n              top: Math.min(coords.top, endCoords.top) - margin,\n              right: Math.max(coords.left, endCoords.left),\n              bottom: Math.max(coords.bottom, endCoords.bottom) + margin};\n      var scrollPos = calculateScrollPos(cm, rect);\n      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;\n      if (scrollPos.scrollTop != null) {\n        updateScrollTop(cm, scrollPos.scrollTop);\n        if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }\n      }\n      if (scrollPos.scrollLeft != null) {\n        setScrollLeft(cm, scrollPos.scrollLeft);\n        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }\n      }\n      if (!changed) { break }\n    }\n    return rect\n  }\n\n  // Scroll a given set of coordinates into view (immediately).\n  function scrollIntoView(cm, rect) {\n    var scrollPos = calculateScrollPos(cm, rect);\n    if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }\n    if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }\n  }\n\n  // Calculate a new scroll position needed to scroll the given\n  // rectangle into view. Returns an object with scrollTop and\n  // scrollLeft properties. When these are undefined, the\n  // vertical/horizontal position does not need to be adjusted.\n  function calculateScrollPos(cm, rect) {\n    var display = cm.display, snapMargin = textHeight(cm.display);\n    if (rect.top < 0) { rect.top = 0; }\n    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;\n    var screen = displayHeight(cm), result = {};\n    if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }\n    var docBottom = cm.doc.height + paddingVert(display);\n    var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;\n    if (rect.top < screentop) {\n      result.scrollTop = atTop ? 0 : rect.top;\n    } else if (rect.bottom > screentop + screen) {\n      var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);\n      if (newTop != screentop) { result.scrollTop = newTop; }\n    }\n\n    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;\n    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);\n    var tooWide = rect.right - rect.left > screenw;\n    if (tooWide) { rect.right = rect.left + screenw; }\n    if (rect.left < 10)\n      { result.scrollLeft = 0; }\n    else if (rect.left < screenleft)\n      { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); }\n    else if (rect.right > screenw + screenleft - 3)\n      { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }\n    return result\n  }\n\n  // Store a relative adjustment to the scroll position in the current\n  // operation (to be applied when the operation finishes).\n  function addToScrollTop(cm, top) {\n    if (top == null) { return }\n    resolveScrollToPos(cm);\n    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;\n  }\n\n  // Make sure that at the end of the operation the current cursor is\n  // shown.\n  function ensureCursorVisible(cm) {\n    resolveScrollToPos(cm);\n    var cur = cm.getCursor();\n    cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};\n  }\n\n  function scrollToCoords(cm, x, y) {\n    if (x != null || y != null) { resolveScrollToPos(cm); }\n    if (x != null) { cm.curOp.scrollLeft = x; }\n    if (y != null) { cm.curOp.scrollTop = y; }\n  }\n\n  function scrollToRange(cm, range) {\n    resolveScrollToPos(cm);\n    cm.curOp.scrollToPos = range;\n  }\n\n  // When an operation has its scrollToPos property set, and another\n  // scroll action is applied before the end of the operation, this\n  // 'simulates' scrolling that position into view in a cheap way, so\n  // that the effect of intermediate scroll commands is not ignored.\n  function resolveScrollToPos(cm) {\n    var range = cm.curOp.scrollToPos;\n    if (range) {\n      cm.curOp.scrollToPos = null;\n      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);\n      scrollToCoordsRange(cm, from, to, range.margin);\n    }\n  }\n\n  function scrollToCoordsRange(cm, from, to, margin) {\n    var sPos = calculateScrollPos(cm, {\n      left: Math.min(from.left, to.left),\n      top: Math.min(from.top, to.top) - margin,\n      right: Math.max(from.right, to.right),\n      bottom: Math.max(from.bottom, to.bottom) + margin\n    });\n    scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);\n  }\n\n  // Sync the scrollable area and scrollbars, ensure the viewport\n  // covers the visible area.\n  function updateScrollTop(cm, val) {\n    if (Math.abs(cm.doc.scrollTop - val) < 2) { return }\n    if (!gecko) { updateDisplaySimple(cm, {top: val}); }\n    setScrollTop(cm, val, true);\n    if (gecko) { updateDisplaySimple(cm); }\n    startWorker(cm, 100);\n  }\n\n  function setScrollTop(cm, val, forceScroll) {\n    val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));\n    if (cm.display.scroller.scrollTop == val && !forceScroll) { return }\n    cm.doc.scrollTop = val;\n    cm.display.scrollbars.setScrollTop(val);\n    if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }\n  }\n\n  // Sync scroller and scrollbar, ensure the gutter elements are\n  // aligned.\n  function setScrollLeft(cm, val, isScroller, forceScroll) {\n    val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));\n    if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }\n    cm.doc.scrollLeft = val;\n    alignHorizontally(cm);\n    if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }\n    cm.display.scrollbars.setScrollLeft(val);\n  }\n\n  // SCROLLBARS\n\n  // Prepare DOM reads needed to update the scrollbars. Done in one\n  // shot to minimize update/measure roundtrips.\n  function measureForScrollbars(cm) {\n    var d = cm.display, gutterW = d.gutters.offsetWidth;\n    var docH = Math.round(cm.doc.height + paddingVert(cm.display));\n    return {\n      clientHeight: d.scroller.clientHeight,\n      viewHeight: d.wrapper.clientHeight,\n      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,\n      viewWidth: d.wrapper.clientWidth,\n      barLeft: cm.options.fixedGutter ? gutterW : 0,\n      docHeight: docH,\n      scrollHeight: docH + scrollGap(cm) + d.barHeight,\n      nativeBarWidth: d.nativeBarWidth,\n      gutterWidth: gutterW\n    }\n  }\n\n  var NativeScrollbars = function(place, scroll, cm) {\n    this.cm = cm;\n    var vert = this.vert = elt(\"div\", [elt(\"div\", null, null, \"min-width: 1px\")], \"CodeMirror-vscrollbar\");\n    var horiz = this.horiz = elt(\"div\", [elt(\"div\", null, null, \"height: 100%; min-height: 1px\")], \"CodeMirror-hscrollbar\");\n    vert.tabIndex = horiz.tabIndex = -1;\n    place(vert); place(horiz);\n\n    on(vert, \"scroll\", function () {\n      if (vert.clientHeight) { scroll(vert.scrollTop, \"vertical\"); }\n    });\n    on(horiz, \"scroll\", function () {\n      if (horiz.clientWidth) { scroll(horiz.scrollLeft, \"horizontal\"); }\n    });\n\n    this.checkedZeroWidth = false;\n    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).\n    if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = \"18px\"; }\n  };\n\n  NativeScrollbars.prototype.update = function (measure) {\n    var needsH = measure.scrollWidth > measure.clientWidth + 1;\n    var needsV = measure.scrollHeight > measure.clientHeight + 1;\n    var sWidth = measure.nativeBarWidth;\n\n    if (needsV) {\n      this.vert.style.display = \"block\";\n      this.vert.style.bottom = needsH ? sWidth + \"px\" : \"0\";\n      var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);\n      // A bug in IE8 can cause this value to be negative, so guard it.\n      this.vert.firstChild.style.height =\n        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + \"px\";\n    } else {\n      this.vert.style.display = \"\";\n      this.vert.firstChild.style.height = \"0\";\n    }\n\n    if (needsH) {\n      this.horiz.style.display = \"block\";\n      this.horiz.style.right = needsV ? sWidth + \"px\" : \"0\";\n      this.horiz.style.left = measure.barLeft + \"px\";\n      var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);\n      this.horiz.firstChild.style.width =\n        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + \"px\";\n    } else {\n      this.horiz.style.display = \"\";\n      this.horiz.firstChild.style.width = \"0\";\n    }\n\n    if (!this.checkedZeroWidth && measure.clientHeight > 0) {\n      if (sWidth == 0) { this.zeroWidthHack(); }\n      this.checkedZeroWidth = true;\n    }\n\n    return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}\n  };\n\n  NativeScrollbars.prototype.setScrollLeft = function (pos) {\n    if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }\n    if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, \"horiz\"); }\n  };\n\n  NativeScrollbars.prototype.setScrollTop = function (pos) {\n    if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }\n    if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, \"vert\"); }\n  };\n\n  NativeScrollbars.prototype.zeroWidthHack = function () {\n    var w = mac && !mac_geMountainLion ? \"12px\" : \"18px\";\n    this.horiz.style.height = this.vert.style.width = w;\n    this.horiz.style.pointerEvents = this.vert.style.pointerEvents = \"none\";\n    this.disableHoriz = new Delayed;\n    this.disableVert = new Delayed;\n  };\n\n  NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {\n    bar.style.pointerEvents = \"auto\";\n    function maybeDisable() {\n      // To find out whether the scrollbar is still visible, we\n      // check whether the element under the pixel in the bottom\n      // right corner of the scrollbar box is the scrollbar box\n      // itself (when the bar is still visible) or its filler child\n      // (when the bar is hidden). If it is still visible, we keep\n      // it enabled, if it's hidden, we disable pointer events.\n      var box = bar.getBoundingClientRect();\n      var elt = type == \"vert\" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)\n          : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);\n      if (elt != bar) { bar.style.pointerEvents = \"none\"; }\n      else { delay.set(1000, maybeDisable); }\n    }\n    delay.set(1000, maybeDisable);\n  };\n\n  NativeScrollbars.prototype.clear = function () {\n    var parent = this.horiz.parentNode;\n    parent.removeChild(this.horiz);\n    parent.removeChild(this.vert);\n  };\n\n  var NullScrollbars = function () {};\n\n  NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };\n  NullScrollbars.prototype.setScrollLeft = function () {};\n  NullScrollbars.prototype.setScrollTop = function () {};\n  NullScrollbars.prototype.clear = function () {};\n\n  function updateScrollbars(cm, measure) {\n    if (!measure) { measure = measureForScrollbars(cm); }\n    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;\n    updateScrollbarsInner(cm, measure);\n    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {\n      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)\n        { updateHeightsInViewport(cm); }\n      updateScrollbarsInner(cm, measureForScrollbars(cm));\n      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;\n    }\n  }\n\n  // Re-synchronize the fake scrollbars with the actual size of the\n  // content.\n  function updateScrollbarsInner(cm, measure) {\n    var d = cm.display;\n    var sizes = d.scrollbars.update(measure);\n\n    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + \"px\";\n    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + \"px\";\n    d.heightForcer.style.borderBottom = sizes.bottom + \"px solid transparent\";\n\n    if (sizes.right && sizes.bottom) {\n      d.scrollbarFiller.style.display = \"block\";\n      d.scrollbarFiller.style.height = sizes.bottom + \"px\";\n      d.scrollbarFiller.style.width = sizes.right + \"px\";\n    } else { d.scrollbarFiller.style.display = \"\"; }\n    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {\n      d.gutterFiller.style.display = \"block\";\n      d.gutterFiller.style.height = sizes.bottom + \"px\";\n      d.gutterFiller.style.width = measure.gutterWidth + \"px\";\n    } else { d.gutterFiller.style.display = \"\"; }\n  }\n\n  var scrollbarModel = {\"native\": NativeScrollbars, \"null\": NullScrollbars};\n\n  function initScrollbars(cm) {\n    if (cm.display.scrollbars) {\n      cm.display.scrollbars.clear();\n      if (cm.display.scrollbars.addClass)\n        { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }\n    }\n\n    cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {\n      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);\n      // Prevent clicks in the scrollbars from killing focus\n      on(node, \"mousedown\", function () {\n        if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }\n      });\n      node.setAttribute(\"cm-not-content\", \"true\");\n    }, function (pos, axis) {\n      if (axis == \"horizontal\") { setScrollLeft(cm, pos); }\n      else { updateScrollTop(cm, pos); }\n    }, cm);\n    if (cm.display.scrollbars.addClass)\n      { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }\n  }\n\n  // Operations are used to wrap a series of changes to the editor\n  // state in such a way that each change won't have to update the\n  // cursor and display (which would be awkward, slow, and\n  // error-prone). Instead, display updates are batched and then all\n  // combined and executed at once.\n\n  var nextOpId = 0;\n  // Start a new operation.\n  function startOperation(cm) {\n    cm.curOp = {\n      cm: cm,\n      viewChanged: false,      // Flag that indicates that lines might need to be redrawn\n      startHeight: cm.doc.height, // Used to detect need to update scrollbar\n      forceUpdate: false,      // Used to force a redraw\n      updateInput: 0,       // Whether to reset the input textarea\n      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)\n      changeObjs: null,        // Accumulated changes, for firing change events\n      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on\n      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already\n      selectionChanged: false, // Whether the selection needs to be redrawn\n      updateMaxLine: false,    // Set when the widest line needs to be determined anew\n      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet\n      scrollToPos: null,       // Used to scroll to a specific position\n      focus: false,\n      id: ++nextOpId           // Unique ID\n    };\n    pushOperation(cm.curOp);\n  }\n\n  // Finish an operation, updating the display and signalling delayed events\n  function endOperation(cm) {\n    var op = cm.curOp;\n    if (op) { finishOperation(op, function (group) {\n      for (var i = 0; i < group.ops.length; i++)\n        { group.ops[i].cm.curOp = null; }\n      endOperations(group);\n    }); }\n  }\n\n  // The DOM updates done when an operation finishes are batched so\n  // that the minimum number of relayouts are required.\n  function endOperations(group) {\n    var ops = group.ops;\n    for (var i = 0; i < ops.length; i++) // Read DOM\n      { endOperation_R1(ops[i]); }\n    for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)\n      { endOperation_W1(ops[i$1]); }\n    for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM\n      { endOperation_R2(ops[i$2]); }\n    for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)\n      { endOperation_W2(ops[i$3]); }\n    for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM\n      { endOperation_finish(ops[i$4]); }\n  }\n\n  function endOperation_R1(op) {\n    var cm = op.cm, display = cm.display;\n    maybeClipScrollbars(cm);\n    if (op.updateMaxLine) { findMaxLine(cm); }\n\n    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||\n      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||\n                         op.scrollToPos.to.line >= display.viewTo) ||\n      display.maxLineChanged && cm.options.lineWrapping;\n    op.update = op.mustUpdate &&\n      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);\n  }\n\n  function endOperation_W1(op) {\n    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);\n  }\n\n  function endOperation_R2(op) {\n    var cm = op.cm, display = cm.display;\n    if (op.updatedDisplay) { updateHeightsInViewport(cm); }\n\n    op.barMeasure = measureForScrollbars(cm);\n\n    // If the max line changed since it was last measured, measure it,\n    // and ensure the document's width matches it.\n    // updateDisplay_W2 will use these properties to do the actual resizing\n    if (display.maxLineChanged && !cm.options.lineWrapping) {\n      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;\n      cm.display.sizerWidth = op.adjustWidthTo;\n      op.barMeasure.scrollWidth =\n        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);\n      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));\n    }\n\n    if (op.updatedDisplay || op.selectionChanged)\n      { op.preparedSelection = display.input.prepareSelection(); }\n  }\n\n  function endOperation_W2(op) {\n    var cm = op.cm;\n\n    if (op.adjustWidthTo != null) {\n      cm.display.sizer.style.minWidth = op.adjustWidthTo + \"px\";\n      if (op.maxScrollLeft < cm.doc.scrollLeft)\n        { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }\n      cm.display.maxLineChanged = false;\n    }\n\n    var takeFocus = op.focus && op.focus == activeElt();\n    if (op.preparedSelection)\n      { cm.display.input.showSelection(op.preparedSelection, takeFocus); }\n    if (op.updatedDisplay || op.startHeight != cm.doc.height)\n      { updateScrollbars(cm, op.barMeasure); }\n    if (op.updatedDisplay)\n      { setDocumentHeight(cm, op.barMeasure); }\n\n    if (op.selectionChanged) { restartBlink(cm); }\n\n    if (cm.state.focused && op.updateInput)\n      { cm.display.input.reset(op.typing); }\n    if (takeFocus) { ensureFocus(op.cm); }\n  }\n\n  function endOperation_finish(op) {\n    var cm = op.cm, display = cm.display, doc = cm.doc;\n\n    if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }\n\n    // Abort mouse wheel delta measurement, when scrolling explicitly\n    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))\n      { display.wheelStartX = display.wheelStartY = null; }\n\n    // Propagate the scroll position to the actual DOM scroller\n    if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }\n\n    if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }\n    // If we need to scroll a specific position into view, do so.\n    if (op.scrollToPos) {\n      var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),\n                                   clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);\n      maybeScrollWindow(cm, rect);\n    }\n\n    // Fire events for markers that are hidden/unidden by editing or\n    // undoing\n    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;\n    if (hidden) { for (var i = 0; i < hidden.length; ++i)\n      { if (!hidden[i].lines.length) { signal(hidden[i], \"hide\"); } } }\n    if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)\n      { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], \"unhide\"); } } }\n\n    if (display.wrapper.offsetHeight)\n      { doc.scrollTop = cm.display.scroller.scrollTop; }\n\n    // Fire change events, and delayed event handlers\n    if (op.changeObjs)\n      { signal(cm, \"changes\", cm, op.changeObjs); }\n    if (op.update)\n      { op.update.finish(); }\n  }\n\n  // Run the given function in an operation\n  function runInOp(cm, f) {\n    if (cm.curOp) { return f() }\n    startOperation(cm);\n    try { return f() }\n    finally { endOperation(cm); }\n  }\n  // Wraps a function in an operation. Returns the wrapped function.\n  function operation(cm, f) {\n    return function() {\n      if (cm.curOp) { return f.apply(cm, arguments) }\n      startOperation(cm);\n      try { return f.apply(cm, arguments) }\n      finally { endOperation(cm); }\n    }\n  }\n  // Used to add methods to editor and doc instances, wrapping them in\n  // operations.\n  function methodOp(f) {\n    return function() {\n      if (this.curOp) { return f.apply(this, arguments) }\n      startOperation(this);\n      try { return f.apply(this, arguments) }\n      finally { endOperation(this); }\n    }\n  }\n  function docMethodOp(f) {\n    return function() {\n      var cm = this.cm;\n      if (!cm || cm.curOp) { return f.apply(this, arguments) }\n      startOperation(cm);\n      try { return f.apply(this, arguments) }\n      finally { endOperation(cm); }\n    }\n  }\n\n  // HIGHLIGHT WORKER\n\n  function startWorker(cm, time) {\n    if (cm.doc.highlightFrontier < cm.display.viewTo)\n      { cm.state.highlight.set(time, bind(highlightWorker, cm)); }\n  }\n\n  function highlightWorker(cm) {\n    var doc = cm.doc;\n    if (doc.highlightFrontier >= cm.display.viewTo) { return }\n    var end = +new Date + cm.options.workTime;\n    var context = getContextBefore(cm, doc.highlightFrontier);\n    var changedLines = [];\n\n    doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {\n      if (context.line >= cm.display.viewFrom) { // Visible\n        var oldStyles = line.styles;\n        var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;\n        var highlighted = highlightLine(cm, line, context, true);\n        if (resetState) { context.state = resetState; }\n        line.styles = highlighted.styles;\n        var oldCls = line.styleClasses, newCls = highlighted.classes;\n        if (newCls) { line.styleClasses = newCls; }\n        else if (oldCls) { line.styleClasses = null; }\n        var ischange = !oldStyles || oldStyles.length != line.styles.length ||\n          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);\n        for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }\n        if (ischange) { changedLines.push(context.line); }\n        line.stateAfter = context.save();\n        context.nextLine();\n      } else {\n        if (line.text.length <= cm.options.maxHighlightLength)\n          { processLine(cm, line.text, context); }\n        line.stateAfter = context.line % 5 == 0 ? context.save() : null;\n        context.nextLine();\n      }\n      if (+new Date > end) {\n        startWorker(cm, cm.options.workDelay);\n        return true\n      }\n    });\n    doc.highlightFrontier = context.line;\n    doc.modeFrontier = Math.max(doc.modeFrontier, context.line);\n    if (changedLines.length) { runInOp(cm, function () {\n      for (var i = 0; i < changedLines.length; i++)\n        { regLineChange(cm, changedLines[i], \"text\"); }\n    }); }\n  }\n\n  // DISPLAY DRAWING\n\n  var DisplayUpdate = function(cm, viewport, force) {\n    var display = cm.display;\n\n    this.viewport = viewport;\n    // Store some values that we'll need later (but don't want to force a relayout for)\n    this.visible = visibleLines(display, cm.doc, viewport);\n    this.editorIsHidden = !display.wrapper.offsetWidth;\n    this.wrapperHeight = display.wrapper.clientHeight;\n    this.wrapperWidth = display.wrapper.clientWidth;\n    this.oldDisplayWidth = displayWidth(cm);\n    this.force = force;\n    this.dims = getDimensions(cm);\n    this.events = [];\n  };\n\n  DisplayUpdate.prototype.signal = function (emitter, type) {\n    if (hasHandler(emitter, type))\n      { this.events.push(arguments); }\n  };\n  DisplayUpdate.prototype.finish = function () {\n    for (var i = 0; i < this.events.length; i++)\n      { signal.apply(null, this.events[i]); }\n  };\n\n  function maybeClipScrollbars(cm) {\n    var display = cm.display;\n    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {\n      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;\n      display.heightForcer.style.height = scrollGap(cm) + \"px\";\n      display.sizer.style.marginBottom = -display.nativeBarWidth + \"px\";\n      display.sizer.style.borderRightWidth = scrollGap(cm) + \"px\";\n      display.scrollbarsClipped = true;\n    }\n  }\n\n  function selectionSnapshot(cm) {\n    if (cm.hasFocus()) { return null }\n    var active = activeElt();\n    if (!active || !contains(cm.display.lineDiv, active)) { return null }\n    var result = {activeElt: active};\n    if (window.getSelection) {\n      var sel = window.getSelection();\n      if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {\n        result.anchorNode = sel.anchorNode;\n        result.anchorOffset = sel.anchorOffset;\n        result.focusNode = sel.focusNode;\n        result.focusOffset = sel.focusOffset;\n      }\n    }\n    return result\n  }\n\n  function restoreSelection(snapshot) {\n    if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }\n    snapshot.activeElt.focus();\n    if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {\n      var sel = window.getSelection(), range = document.createRange();\n      range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);\n      range.collapse(false);\n      sel.removeAllRanges();\n      sel.addRange(range);\n      sel.extend(snapshot.focusNode, snapshot.focusOffset);\n    }\n  }\n\n  // Does the actual updating of the line display. Bails out\n  // (returning false) when there is nothing to be done and forced is\n  // false.\n  function updateDisplayIfNeeded(cm, update) {\n    var display = cm.display, doc = cm.doc;\n\n    if (update.editorIsHidden) {\n      resetView(cm);\n      return false\n    }\n\n    // Bail out if the visible area is already rendered and nothing changed.\n    if (!update.force &&\n        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&\n        display.renderedView == display.view && countDirtyView(cm) == 0)\n      { return false }\n\n    if (maybeUpdateLineNumberWidth(cm)) {\n      resetView(cm);\n      update.dims = getDimensions(cm);\n    }\n\n    // Compute a suitable new viewport (from & to)\n    var end = doc.first + doc.size;\n    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);\n    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);\n    if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }\n    if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }\n    if (sawCollapsedSpans) {\n      from = visualLineNo(cm.doc, from);\n      to = visualLineEndNo(cm.doc, to);\n    }\n\n    var different = from != display.viewFrom || to != display.viewTo ||\n      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;\n    adjustView(cm, from, to);\n\n    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));\n    // Position the mover div to align with the current scroll position\n    cm.display.mover.style.top = display.viewOffset + \"px\";\n\n    var toUpdate = countDirtyView(cm);\n    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))\n      { return false }\n\n    // For big changes, we hide the enclosing element during the\n    // update, since that speeds up the operations on most browsers.\n    var selSnapshot = selectionSnapshot(cm);\n    if (toUpdate > 4) { display.lineDiv.style.display = \"none\"; }\n    patchDisplay(cm, display.updateLineNumbers, update.dims);\n    if (toUpdate > 4) { display.lineDiv.style.display = \"\"; }\n    display.renderedView = display.view;\n    // There might have been a widget with a focused element that got\n    // hidden or updated, if so re-focus it.\n    restoreSelection(selSnapshot);\n\n    // Prevent selection and cursors from interfering with the scroll\n    // width and height.\n    removeChildren(display.cursorDiv);\n    removeChildren(display.selectionDiv);\n    display.gutters.style.height = display.sizer.style.minHeight = 0;\n\n    if (different) {\n      display.lastWrapHeight = update.wrapperHeight;\n      display.lastWrapWidth = update.wrapperWidth;\n      startWorker(cm, 400);\n    }\n\n    display.updateLineNumbers = null;\n\n    return true\n  }\n\n  function postUpdateDisplay(cm, update) {\n    var viewport = update.viewport;\n\n    for (var first = true;; first = false) {\n      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {\n        // Clip forced viewport to actual scrollable area.\n        if (viewport && viewport.top != null)\n          { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }\n        // Updated line heights might result in the drawn area not\n        // actually covering the viewport. Keep looping until it does.\n        update.visible = visibleLines(cm.display, cm.doc, viewport);\n        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)\n          { break }\n      }\n      if (!updateDisplayIfNeeded(cm, update)) { break }\n      updateHeightsInViewport(cm);\n      var barMeasure = measureForScrollbars(cm);\n      updateSelection(cm);\n      updateScrollbars(cm, barMeasure);\n      setDocumentHeight(cm, barMeasure);\n      update.force = false;\n    }\n\n    update.signal(cm, \"update\", cm);\n    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {\n      update.signal(cm, \"viewportChange\", cm, cm.display.viewFrom, cm.display.viewTo);\n      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;\n    }\n  }\n\n  function updateDisplaySimple(cm, viewport) {\n    var update = new DisplayUpdate(cm, viewport);\n    if (updateDisplayIfNeeded(cm, update)) {\n      updateHeightsInViewport(cm);\n      postUpdateDisplay(cm, update);\n      var barMeasure = measureForScrollbars(cm);\n      updateSelection(cm);\n      updateScrollbars(cm, barMeasure);\n      setDocumentHeight(cm, barMeasure);\n      update.finish();\n    }\n  }\n\n  // Sync the actual display DOM structure with display.view, removing\n  // nodes for lines that are no longer in view, and creating the ones\n  // that are not there yet, and updating the ones that are out of\n  // date.\n  function patchDisplay(cm, updateNumbersFrom, dims) {\n    var display = cm.display, lineNumbers = cm.options.lineNumbers;\n    var container = display.lineDiv, cur = container.firstChild;\n\n    function rm(node) {\n      var next = node.nextSibling;\n      // Works around a throw-scroll bug in OS X Webkit\n      if (webkit && mac && cm.display.currentWheelTarget == node)\n        { node.style.display = \"none\"; }\n      else\n        { node.parentNode.removeChild(node); }\n      return next\n    }\n\n    var view = display.view, lineN = display.viewFrom;\n    // Loop over the elements in the view, syncing cur (the DOM nodes\n    // in display.lineDiv) with the view as we go.\n    for (var i = 0; i < view.length; i++) {\n      var lineView = view[i];\n      if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet\n        var node = buildLineElement(cm, lineView, lineN, dims);\n        container.insertBefore(node, cur);\n      } else { // Already drawn\n        while (cur != lineView.node) { cur = rm(cur); }\n        var updateNumber = lineNumbers && updateNumbersFrom != null &&\n          updateNumbersFrom <= lineN && lineView.lineNumber;\n        if (lineView.changes) {\n          if (indexOf(lineView.changes, \"gutter\") > -1) { updateNumber = false; }\n          updateLineForChanges(cm, lineView, lineN, dims);\n        }\n        if (updateNumber) {\n          removeChildren(lineView.lineNumber);\n          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));\n        }\n        cur = lineView.node.nextSibling;\n      }\n      lineN += lineView.size;\n    }\n    while (cur) { cur = rm(cur); }\n  }\n\n  function updateGutterSpace(display) {\n    var width = display.gutters.offsetWidth;\n    display.sizer.style.marginLeft = width + \"px\";\n  }\n\n  function setDocumentHeight(cm, measure) {\n    cm.display.sizer.style.minHeight = measure.docHeight + \"px\";\n    cm.display.heightForcer.style.top = measure.docHeight + \"px\";\n    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + \"px\";\n  }\n\n  // Re-align line numbers and gutter marks to compensate for\n  // horizontal scrolling.\n  function alignHorizontally(cm) {\n    var display = cm.display, view = display.view;\n    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }\n    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;\n    var gutterW = display.gutters.offsetWidth, left = comp + \"px\";\n    for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {\n      if (cm.options.fixedGutter) {\n        if (view[i].gutter)\n          { view[i].gutter.style.left = left; }\n        if (view[i].gutterBackground)\n          { view[i].gutterBackground.style.left = left; }\n      }\n      var align = view[i].alignable;\n      if (align) { for (var j = 0; j < align.length; j++)\n        { align[j].style.left = left; } }\n    } }\n    if (cm.options.fixedGutter)\n      { display.gutters.style.left = (comp + gutterW) + \"px\"; }\n  }\n\n  // Used to ensure that the line number gutter is still the right\n  // size for the current document size. Returns true when an update\n  // is needed.\n  function maybeUpdateLineNumberWidth(cm) {\n    if (!cm.options.lineNumbers) { return false }\n    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;\n    if (last.length != display.lineNumChars) {\n      var test = display.measure.appendChild(elt(\"div\", [elt(\"div\", last)],\n                                                 \"CodeMirror-linenumber CodeMirror-gutter-elt\"));\n      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;\n      display.lineGutter.style.width = \"\";\n      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;\n      display.lineNumWidth = display.lineNumInnerWidth + padding;\n      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;\n      display.lineGutter.style.width = display.lineNumWidth + \"px\";\n      updateGutterSpace(cm.display);\n      return true\n    }\n    return false\n  }\n\n  function getGutters(gutters, lineNumbers) {\n    var result = [], sawLineNumbers = false;\n    for (var i = 0; i < gutters.length; i++) {\n      var name = gutters[i], style = null;\n      if (typeof name != \"string\") { style = name.style; name = name.className; }\n      if (name == \"CodeMirror-linenumbers\") {\n        if (!lineNumbers) { continue }\n        else { sawLineNumbers = true; }\n      }\n      result.push({className: name, style: style});\n    }\n    if (lineNumbers && !sawLineNumbers) { result.push({className: \"CodeMirror-linenumbers\", style: null}); }\n    return result\n  }\n\n  // Rebuild the gutter elements, ensure the margin to the left of the\n  // code matches their width.\n  function renderGutters(display) {\n    var gutters = display.gutters, specs = display.gutterSpecs;\n    removeChildren(gutters);\n    display.lineGutter = null;\n    for (var i = 0; i < specs.length; ++i) {\n      var ref = specs[i];\n      var className = ref.className;\n      var style = ref.style;\n      var gElt = gutters.appendChild(elt(\"div\", null, \"CodeMirror-gutter \" + className));\n      if (style) { gElt.style.cssText = style; }\n      if (className == \"CodeMirror-linenumbers\") {\n        display.lineGutter = gElt;\n        gElt.style.width = (display.lineNumWidth || 1) + \"px\";\n      }\n    }\n    gutters.style.display = specs.length ? \"\" : \"none\";\n    updateGutterSpace(display);\n  }\n\n  function updateGutters(cm) {\n    renderGutters(cm.display);\n    regChange(cm);\n    alignHorizontally(cm);\n  }\n\n  // The display handles the DOM integration, both for input reading\n  // and content drawing. It holds references to DOM nodes and\n  // display-related state.\n\n  function Display(place, doc, input, options) {\n    var d = this;\n    this.input = input;\n\n    // Covers bottom-right square when both scrollbars are present.\n    d.scrollbarFiller = elt(\"div\", null, \"CodeMirror-scrollbar-filler\");\n    d.scrollbarFiller.setAttribute(\"cm-not-content\", \"true\");\n    // Covers bottom of gutter when coverGutterNextToScrollbar is on\n    // and h scrollbar is present.\n    d.gutterFiller = elt(\"div\", null, \"CodeMirror-gutter-filler\");\n    d.gutterFiller.setAttribute(\"cm-not-content\", \"true\");\n    // Will contain the actual code, positioned to cover the viewport.\n    d.lineDiv = eltP(\"div\", null, \"CodeMirror-code\");\n    // Elements are added to these to represent selection and cursors.\n    d.selectionDiv = elt(\"div\", null, null, \"position: relative; z-index: 1\");\n    d.cursorDiv = elt(\"div\", null, \"CodeMirror-cursors\");\n    // A visibility: hidden element used to find the size of things.\n    d.measure = elt(\"div\", null, \"CodeMirror-measure\");\n    // When lines outside of the viewport are measured, they are drawn in this.\n    d.lineMeasure = elt(\"div\", null, \"CodeMirror-measure\");\n    // Wraps everything that needs to exist inside the vertically-padded coordinate system\n    d.lineSpace = eltP(\"div\", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],\n                      null, \"position: relative; outline: none\");\n    var lines = eltP(\"div\", [d.lineSpace], \"CodeMirror-lines\");\n    // Moved around its parent to cover visible view.\n    d.mover = elt(\"div\", [lines], null, \"position: relative\");\n    // Set to the height of the document, allowing scrolling.\n    d.sizer = elt(\"div\", [d.mover], \"CodeMirror-sizer\");\n    d.sizerWidth = null;\n    // Behavior of elts with overflow: auto and padding is\n    // inconsistent across browsers. This is used to ensure the\n    // scrollable area is big enough.\n    d.heightForcer = elt(\"div\", null, null, \"position: absolute; height: \" + scrollerGap + \"px; width: 1px;\");\n    // Will contain the gutters, if any.\n    d.gutters = elt(\"div\", null, \"CodeMirror-gutters\");\n    d.lineGutter = null;\n    // Actual scrollable element.\n    d.scroller = elt(\"div\", [d.sizer, d.heightForcer, d.gutters], \"CodeMirror-scroll\");\n    d.scroller.setAttribute(\"tabIndex\", \"-1\");\n    // The element in which the editor lives.\n    d.wrapper = elt(\"div\", [d.scrollbarFiller, d.gutterFiller, d.scroller], \"CodeMirror\");\n\n    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)\n    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }\n    if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }\n\n    if (place) {\n      if (place.appendChild) { place.appendChild(d.wrapper); }\n      else { place(d.wrapper); }\n    }\n\n    // Current rendered range (may be bigger than the view window).\n    d.viewFrom = d.viewTo = doc.first;\n    d.reportedViewFrom = d.reportedViewTo = doc.first;\n    // Information about the rendered lines.\n    d.view = [];\n    d.renderedView = null;\n    // Holds info about a single rendered line when it was rendered\n    // for measurement, while not in view.\n    d.externalMeasured = null;\n    // Empty space (in pixels) above the view\n    d.viewOffset = 0;\n    d.lastWrapHeight = d.lastWrapWidth = 0;\n    d.updateLineNumbers = null;\n\n    d.nativeBarWidth = d.barHeight = d.barWidth = 0;\n    d.scrollbarsClipped = false;\n\n    // Used to only resize the line number gutter when necessary (when\n    // the amount of lines crosses a boundary that makes its width change)\n    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;\n    // Set to true when a non-horizontal-scrolling line widget is\n    // added. As an optimization, line widget aligning is skipped when\n    // this is false.\n    d.alignWidgets = false;\n\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\n\n    // Tracks the maximum line length so that the horizontal scrollbar\n    // can be kept static when scrolling.\n    d.maxLine = null;\n    d.maxLineLength = 0;\n    d.maxLineChanged = false;\n\n    // Used for measuring wheel scrolling granularity\n    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;\n\n    // True when shift is held down.\n    d.shift = false;\n\n    // Used to track whether anything happened since the context menu\n    // was opened.\n    d.selForContextMenu = null;\n\n    d.activeTouch = null;\n\n    d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);\n    renderGutters(d);\n\n    input.init(d);\n  }\n\n  // Since the delta values reported on mouse wheel events are\n  // unstandardized between browsers and even browser versions, and\n  // generally horribly unpredictable, this code starts by measuring\n  // the scroll effect that the first few mouse wheel events have,\n  // and, from that, detects the way it can convert deltas to pixel\n  // offsets afterwards.\n  //\n  // The reason we want to know the amount a wheel event will scroll\n  // is that it gives us a chance to update the display before the\n  // actual scrolling happens, reducing flickering.\n\n  var wheelSamples = 0, wheelPixelsPerUnit = null;\n  // Fill in a browser-detected starting value on browsers where we\n  // know one. These don't have to be accurate -- the result of them\n  // being wrong would just be a slight flicker on the first wheel\n  // scroll (if it is large enough).\n  if (ie) { wheelPixelsPerUnit = -.53; }\n  else if (gecko) { wheelPixelsPerUnit = 15; }\n  else if (chrome) { wheelPixelsPerUnit = -.7; }\n  else if (safari) { wheelPixelsPerUnit = -1/3; }\n\n  function wheelEventDelta(e) {\n    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;\n    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }\n    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }\n    else if (dy == null) { dy = e.wheelDelta; }\n    return {x: dx, y: dy}\n  }\n  function wheelEventPixels(e) {\n    var delta = wheelEventDelta(e);\n    delta.x *= wheelPixelsPerUnit;\n    delta.y *= wheelPixelsPerUnit;\n    return delta\n  }\n\n  function onScrollWheel(cm, e) {\n    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;\n\n    var display = cm.display, scroll = display.scroller;\n    // Quit if there's nothing to scroll here\n    var canScrollX = scroll.scrollWidth > scroll.clientWidth;\n    var canScrollY = scroll.scrollHeight > scroll.clientHeight;\n    if (!(dx && canScrollX || dy && canScrollY)) { return }\n\n    // Webkit browsers on OS X abort momentum scrolls when the target\n    // of the scroll event is removed from the scrollable element.\n    // This hack (see related code in patchDisplay) makes sure the\n    // element is kept around.\n    if (dy && mac && webkit) {\n      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {\n        for (var i = 0; i < view.length; i++) {\n          if (view[i].node == cur) {\n            cm.display.currentWheelTarget = cur;\n            break outer\n          }\n        }\n      }\n    }\n\n    // On some browsers, horizontal scrolling will cause redraws to\n    // happen before the gutter has been realigned, causing it to\n    // wriggle around in a most unseemly way. When we have an\n    // estimated pixels/delta value, we just handle horizontal\n    // scrolling entirely here. It'll be slightly off from native, but\n    // better than glitching out.\n    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {\n      if (dy && canScrollY)\n        { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }\n      setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));\n      // Only prevent default scrolling if vertical scrolling is\n      // actually possible. Otherwise, it causes vertical scroll\n      // jitter on OSX trackpads when deltaX is small and deltaY\n      // is large (issue #3579)\n      if (!dy || (dy && canScrollY))\n        { e_preventDefault(e); }\n      display.wheelStartX = null; // Abort measurement, if in progress\n      return\n    }\n\n    // 'Project' the visible viewport to cover the area that is being\n    // scrolled into view (if we know enough to estimate it).\n    if (dy && wheelPixelsPerUnit != null) {\n      var pixels = dy * wheelPixelsPerUnit;\n      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;\n      if (pixels < 0) { top = Math.max(0, top + pixels - 50); }\n      else { bot = Math.min(cm.doc.height, bot + pixels + 50); }\n      updateDisplaySimple(cm, {top: top, bottom: bot});\n    }\n\n    if (wheelSamples < 20) {\n      if (display.wheelStartX == null) {\n        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;\n        display.wheelDX = dx; display.wheelDY = dy;\n        setTimeout(function () {\n          if (display.wheelStartX == null) { return }\n          var movedX = scroll.scrollLeft - display.wheelStartX;\n          var movedY = scroll.scrollTop - display.wheelStartY;\n          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||\n            (movedX && display.wheelDX && movedX / display.wheelDX);\n          display.wheelStartX = display.wheelStartY = null;\n          if (!sample) { return }\n          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);\n          ++wheelSamples;\n        }, 200);\n      } else {\n        display.wheelDX += dx; display.wheelDY += dy;\n      }\n    }\n  }\n\n  // Selection objects are immutable. A new one is created every time\n  // the selection changes. A selection is one or more non-overlapping\n  // (and non-touching) ranges, sorted, and an integer that indicates\n  // which one is the primary selection (the one that's scrolled into\n  // view, that getCursor returns, etc).\n  var Selection = function(ranges, primIndex) {\n    this.ranges = ranges;\n    this.primIndex = primIndex;\n  };\n\n  Selection.prototype.primary = function () { return this.ranges[this.primIndex] };\n\n  Selection.prototype.equals = function (other) {\n    if (other == this) { return true }\n    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }\n    for (var i = 0; i < this.ranges.length; i++) {\n      var here = this.ranges[i], there = other.ranges[i];\n      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }\n    }\n    return true\n  };\n\n  Selection.prototype.deepCopy = function () {\n    var out = [];\n    for (var i = 0; i < this.ranges.length; i++)\n      { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }\n    return new Selection(out, this.primIndex)\n  };\n\n  Selection.prototype.somethingSelected = function () {\n    for (var i = 0; i < this.ranges.length; i++)\n      { if (!this.ranges[i].empty()) { return true } }\n    return false\n  };\n\n  Selection.prototype.contains = function (pos, end) {\n    if (!end) { end = pos; }\n    for (var i = 0; i < this.ranges.length; i++) {\n      var range = this.ranges[i];\n      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)\n        { return i }\n    }\n    return -1\n  };\n\n  var Range = function(anchor, head) {\n    this.anchor = anchor; this.head = head;\n  };\n\n  Range.prototype.from = function () { return minPos(this.anchor, this.head) };\n  Range.prototype.to = function () { return maxPos(this.anchor, this.head) };\n  Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };\n\n  // Take an unsorted, potentially overlapping set of ranges, and\n  // build a selection out of it. 'Consumes' ranges array (modifying\n  // it).\n  function normalizeSelection(cm, ranges, primIndex) {\n    var mayTouch = cm && cm.options.selectionsMayTouch;\n    var prim = ranges[primIndex];\n    ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });\n    primIndex = indexOf(ranges, prim);\n    for (var i = 1; i < ranges.length; i++) {\n      var cur = ranges[i], prev = ranges[i - 1];\n      var diff = cmp(prev.to(), cur.from());\n      if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {\n        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());\n        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;\n        if (i <= primIndex) { --primIndex; }\n        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));\n      }\n    }\n    return new Selection(ranges, primIndex)\n  }\n\n  function simpleSelection(anchor, head) {\n    return new Selection([new Range(anchor, head || anchor)], 0)\n  }\n\n  // Compute the position of the end of a change (its 'to' property\n  // refers to the pre-change end).\n  function changeEnd(change) {\n    if (!change.text) { return change.to }\n    return Pos(change.from.line + change.text.length - 1,\n               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))\n  }\n\n  // Adjust a position to refer to the post-change position of the\n  // same text, or the end of the change if the change covers it.\n  function adjustForChange(pos, change) {\n    if (cmp(pos, change.from) < 0) { return pos }\n    if (cmp(pos, change.to) <= 0) { return changeEnd(change) }\n\n    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;\n    if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }\n    return Pos(line, ch)\n  }\n\n  function computeSelAfterChange(doc, change) {\n    var out = [];\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\n      var range = doc.sel.ranges[i];\n      out.push(new Range(adjustForChange(range.anchor, change),\n                         adjustForChange(range.head, change)));\n    }\n    return normalizeSelection(doc.cm, out, doc.sel.primIndex)\n  }\n\n  function offsetPos(pos, old, nw) {\n    if (pos.line == old.line)\n      { return Pos(nw.line, pos.ch - old.ch + nw.ch) }\n    else\n      { return Pos(nw.line + (pos.line - old.line), pos.ch) }\n  }\n\n  // Used by replaceSelections to allow moving the selection to the\n  // start or around the replaced test. Hint may be \"start\" or \"around\".\n  function computeReplacedSel(doc, changes, hint) {\n    var out = [];\n    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;\n    for (var i = 0; i < changes.length; i++) {\n      var change = changes[i];\n      var from = offsetPos(change.from, oldPrev, newPrev);\n      var to = offsetPos(changeEnd(change), oldPrev, newPrev);\n      oldPrev = change.to;\n      newPrev = to;\n      if (hint == \"around\") {\n        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;\n        out[i] = new Range(inv ? to : from, inv ? from : to);\n      } else {\n        out[i] = new Range(from, from);\n      }\n    }\n    return new Selection(out, doc.sel.primIndex)\n  }\n\n  // Used to get the editor into a consistent state again when options change.\n\n  function loadMode(cm) {\n    cm.doc.mode = getMode(cm.options, cm.doc.modeOption);\n    resetModeState(cm);\n  }\n\n  function resetModeState(cm) {\n    cm.doc.iter(function (line) {\n      if (line.stateAfter) { line.stateAfter = null; }\n      if (line.styles) { line.styles = null; }\n    });\n    cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;\n    startWorker(cm, 100);\n    cm.state.modeGen++;\n    if (cm.curOp) { regChange(cm); }\n  }\n\n  // DOCUMENT DATA STRUCTURE\n\n  // By default, updates that start and end at the beginning of a line\n  // are treated specially, in order to make the association of line\n  // widgets and marker elements with the text behave more intuitive.\n  function isWholeLineUpdate(doc, change) {\n    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == \"\" &&\n      (!doc.cm || doc.cm.options.wholeLineUpdateBefore)\n  }\n\n  // Perform a change on the document data structure.\n  function updateDoc(doc, change, markedSpans, estimateHeight) {\n    function spansFor(n) {return markedSpans ? markedSpans[n] : null}\n    function update(line, text, spans) {\n      updateLine(line, text, spans, estimateHeight);\n      signalLater(line, \"change\", line, change);\n    }\n    function linesFor(start, end) {\n      var result = [];\n      for (var i = start; i < end; ++i)\n        { result.push(new Line(text[i], spansFor(i), estimateHeight)); }\n      return result\n    }\n\n    var from = change.from, to = change.to, text = change.text;\n    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);\n    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;\n\n    // Adjust the line structure\n    if (change.full) {\n      doc.insert(0, linesFor(0, text.length));\n      doc.remove(text.length, doc.size - text.length);\n    } else if (isWholeLineUpdate(doc, change)) {\n      // This is a whole-line replace. Treated specially to make\n      // sure line objects move the way they are supposed to.\n      var added = linesFor(0, text.length - 1);\n      update(lastLine, lastLine.text, lastSpans);\n      if (nlines) { doc.remove(from.line, nlines); }\n      if (added.length) { doc.insert(from.line, added); }\n    } else if (firstLine == lastLine) {\n      if (text.length == 1) {\n        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);\n      } else {\n        var added$1 = linesFor(1, text.length - 1);\n        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));\n        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\n        doc.insert(from.line + 1, added$1);\n      }\n    } else if (text.length == 1) {\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));\n      doc.remove(from.line + 1, nlines);\n    } else {\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\n      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);\n      var added$2 = linesFor(1, text.length - 1);\n      if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }\n      doc.insert(from.line + 1, added$2);\n    }\n\n    signalLater(doc, \"change\", doc, change);\n  }\n\n  // Call f for all linked documents.\n  function linkedDocs(doc, f, sharedHistOnly) {\n    function propagate(doc, skip, sharedHist) {\n      if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {\n        var rel = doc.linked[i];\n        if (rel.doc == skip) { continue }\n        var shared = sharedHist && rel.sharedHist;\n        if (sharedHistOnly && !shared) { continue }\n        f(rel.doc, shared);\n        propagate(rel.doc, doc, shared);\n      } }\n    }\n    propagate(doc, null, true);\n  }\n\n  // Attach a document to an editor.\n  function attachDoc(cm, doc) {\n    if (doc.cm) { throw new Error(\"This document is already in use.\") }\n    cm.doc = doc;\n    doc.cm = cm;\n    estimateLineHeights(cm);\n    loadMode(cm);\n    setDirectionClass(cm);\n    if (!cm.options.lineWrapping) { findMaxLine(cm); }\n    cm.options.mode = doc.modeOption;\n    regChange(cm);\n  }\n\n  function setDirectionClass(cm) {\n  (cm.doc.direction == \"rtl\" ? addClass : rmClass)(cm.display.lineDiv, \"CodeMirror-rtl\");\n  }\n\n  function directionChanged(cm) {\n    runInOp(cm, function () {\n      setDirectionClass(cm);\n      regChange(cm);\n    });\n  }\n\n  function History(startGen) {\n    // Arrays of change events and selections. Doing something adds an\n    // event to done and clears undo. Undoing moves events from done\n    // to undone, redoing moves them in the other direction.\n    this.done = []; this.undone = [];\n    this.undoDepth = Infinity;\n    // Used to track when changes can be merged into a single undo\n    // event\n    this.lastModTime = this.lastSelTime = 0;\n    this.lastOp = this.lastSelOp = null;\n    this.lastOrigin = this.lastSelOrigin = null;\n    // Used by the isClean() method\n    this.generation = this.maxGeneration = startGen || 1;\n  }\n\n  // Create a history change event from an updateDoc-style change\n  // object.\n  function historyChangeFromChange(doc, change) {\n    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};\n    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);\n    linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);\n    return histChange\n  }\n\n  // Pop all selection events off the end of a history array. Stop at\n  // a change event.\n  function clearSelectionEvents(array) {\n    while (array.length) {\n      var last = lst(array);\n      if (last.ranges) { array.pop(); }\n      else { break }\n    }\n  }\n\n  // Find the top change event in the history. Pop off selection\n  // events that are in the way.\n  function lastChangeEvent(hist, force) {\n    if (force) {\n      clearSelectionEvents(hist.done);\n      return lst(hist.done)\n    } else if (hist.done.length && !lst(hist.done).ranges) {\n      return lst(hist.done)\n    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {\n      hist.done.pop();\n      return lst(hist.done)\n    }\n  }\n\n  // Register a change in the history. Merges changes that are within\n  // a single operation, or are close together with an origin that\n  // allows merging (starting with \"+\") into a single event.\n  function addChangeToHistory(doc, change, selAfter, opId) {\n    var hist = doc.history;\n    hist.undone.length = 0;\n    var time = +new Date, cur;\n    var last;\n\n    if ((hist.lastOp == opId ||\n         hist.lastOrigin == change.origin && change.origin &&\n         ((change.origin.charAt(0) == \"+\" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||\n          change.origin.charAt(0) == \"*\")) &&\n        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {\n      // Merge this change into the last event\n      last = lst(cur.changes);\n      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {\n        // Optimized case for simple insertion -- don't want to add\n        // new changesets for every character typed\n        last.to = changeEnd(change);\n      } else {\n        // Add new sub-event\n        cur.changes.push(historyChangeFromChange(doc, change));\n      }\n    } else {\n      // Can not be merged, start a new event.\n      var before = lst(hist.done);\n      if (!before || !before.ranges)\n        { pushSelectionToHistory(doc.sel, hist.done); }\n      cur = {changes: [historyChangeFromChange(doc, change)],\n             generation: hist.generation};\n      hist.done.push(cur);\n      while (hist.done.length > hist.undoDepth) {\n        hist.done.shift();\n        if (!hist.done[0].ranges) { hist.done.shift(); }\n      }\n    }\n    hist.done.push(selAfter);\n    hist.generation = ++hist.maxGeneration;\n    hist.lastModTime = hist.lastSelTime = time;\n    hist.lastOp = hist.lastSelOp = opId;\n    hist.lastOrigin = hist.lastSelOrigin = change.origin;\n\n    if (!last) { signal(doc, \"historyAdded\"); }\n  }\n\n  function selectionEventCanBeMerged(doc, origin, prev, sel) {\n    var ch = origin.charAt(0);\n    return ch == \"*\" ||\n      ch == \"+\" &&\n      prev.ranges.length == sel.ranges.length &&\n      prev.somethingSelected() == sel.somethingSelected() &&\n      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)\n  }\n\n  // Called whenever the selection changes, sets the new selection as\n  // the pending selection in the history, and pushes the old pending\n  // selection into the 'done' array when it was significantly\n  // different (in number of selected ranges, emptiness, or time).\n  function addSelectionToHistory(doc, sel, opId, options) {\n    var hist = doc.history, origin = options && options.origin;\n\n    // A new event is started when the previous origin does not match\n    // the current, or the origins don't allow matching. Origins\n    // starting with * are always merged, those starting with + are\n    // merged when similar and close together in time.\n    if (opId == hist.lastSelOp ||\n        (origin && hist.lastSelOrigin == origin &&\n         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||\n          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))\n      { hist.done[hist.done.length - 1] = sel; }\n    else\n      { pushSelectionToHistory(sel, hist.done); }\n\n    hist.lastSelTime = +new Date;\n    hist.lastSelOrigin = origin;\n    hist.lastSelOp = opId;\n    if (options && options.clearRedo !== false)\n      { clearSelectionEvents(hist.undone); }\n  }\n\n  function pushSelectionToHistory(sel, dest) {\n    var top = lst(dest);\n    if (!(top && top.ranges && top.equals(sel)))\n      { dest.push(sel); }\n  }\n\n  // Used to store marked span information in the history.\n  function attachLocalSpans(doc, change, from, to) {\n    var existing = change[\"spans_\" + doc.id], n = 0;\n    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {\n      if (line.markedSpans)\n        { (existing || (existing = change[\"spans_\" + doc.id] = {}))[n] = line.markedSpans; }\n      ++n;\n    });\n  }\n\n  // When un/re-doing restores text containing marked spans, those\n  // that have been explicitly cleared should not be restored.\n  function removeClearedSpans(spans) {\n    if (!spans) { return null }\n    var out;\n    for (var i = 0; i < spans.length; ++i) {\n      if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }\n      else if (out) { out.push(spans[i]); }\n    }\n    return !out ? spans : out.length ? out : null\n  }\n\n  // Retrieve and filter the old marked spans stored in a change event.\n  function getOldSpans(doc, change) {\n    var found = change[\"spans_\" + doc.id];\n    if (!found) { return null }\n    var nw = [];\n    for (var i = 0; i < change.text.length; ++i)\n      { nw.push(removeClearedSpans(found[i])); }\n    return nw\n  }\n\n  // Used for un/re-doing changes from the history. Combines the\n  // result of computing the existing spans with the set of spans that\n  // existed in the history (so that deleting around a span and then\n  // undoing brings back the span).\n  function mergeOldSpans(doc, change) {\n    var old = getOldSpans(doc, change);\n    var stretched = stretchSpansOverChange(doc, change);\n    if (!old) { return stretched }\n    if (!stretched) { return old }\n\n    for (var i = 0; i < old.length; ++i) {\n      var oldCur = old[i], stretchCur = stretched[i];\n      if (oldCur && stretchCur) {\n        spans: for (var j = 0; j < stretchCur.length; ++j) {\n          var span = stretchCur[j];\n          for (var k = 0; k < oldCur.length; ++k)\n            { if (oldCur[k].marker == span.marker) { continue spans } }\n          oldCur.push(span);\n        }\n      } else if (stretchCur) {\n        old[i] = stretchCur;\n      }\n    }\n    return old\n  }\n\n  // Used both to provide a JSON-safe object in .getHistory, and, when\n  // detaching a document, to split the history in two\n  function copyHistoryArray(events, newGroup, instantiateSel) {\n    var copy = [];\n    for (var i = 0; i < events.length; ++i) {\n      var event = events[i];\n      if (event.ranges) {\n        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);\n        continue\n      }\n      var changes = event.changes, newChanges = [];\n      copy.push({changes: newChanges});\n      for (var j = 0; j < changes.length; ++j) {\n        var change = changes[j], m = (void 0);\n        newChanges.push({from: change.from, to: change.to, text: change.text});\n        if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\\d+)$/)) {\n          if (indexOf(newGroup, Number(m[1])) > -1) {\n            lst(newChanges)[prop] = change[prop];\n            delete change[prop];\n          }\n        } } }\n      }\n    }\n    return copy\n  }\n\n  // The 'scroll' parameter given to many of these indicated whether\n  // the new cursor position should be scrolled into view after\n  // modifying the selection.\n\n  // If shift is held or the extend flag is set, extends a range to\n  // include a given position (and optionally a second position).\n  // Otherwise, simply returns the range between the given positions.\n  // Used for cursor motion and such.\n  function extendRange(range, head, other, extend) {\n    if (extend) {\n      var anchor = range.anchor;\n      if (other) {\n        var posBefore = cmp(head, anchor) < 0;\n        if (posBefore != (cmp(other, anchor) < 0)) {\n          anchor = head;\n          head = other;\n        } else if (posBefore != (cmp(head, other) < 0)) {\n          head = other;\n        }\n      }\n      return new Range(anchor, head)\n    } else {\n      return new Range(other || head, head)\n    }\n  }\n\n  // Extend the primary selection range, discard the rest.\n  function extendSelection(doc, head, other, options, extend) {\n    if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }\n    setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);\n  }\n\n  // Extend all selections (pos is an array of selections with length\n  // equal the number of selections)\n  function extendSelections(doc, heads, options) {\n    var out = [];\n    var extend = doc.cm && (doc.cm.display.shift || doc.extend);\n    for (var i = 0; i < doc.sel.ranges.length; i++)\n      { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }\n    var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);\n    setSelection(doc, newSel, options);\n  }\n\n  // Updates a single range in the selection.\n  function replaceOneSelection(doc, i, range, options) {\n    var ranges = doc.sel.ranges.slice(0);\n    ranges[i] = range;\n    setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);\n  }\n\n  // Reset the selection to a single range.\n  function setSimpleSelection(doc, anchor, head, options) {\n    setSelection(doc, simpleSelection(anchor, head), options);\n  }\n\n  // Give beforeSelectionChange handlers a change to influence a\n  // selection update.\n  function filterSelectionChange(doc, sel, options) {\n    var obj = {\n      ranges: sel.ranges,\n      update: function(ranges) {\n        this.ranges = [];\n        for (var i = 0; i < ranges.length; i++)\n          { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),\n                                     clipPos(doc, ranges[i].head)); }\n      },\n      origin: options && options.origin\n    };\n    signal(doc, \"beforeSelectionChange\", doc, obj);\n    if (doc.cm) { signal(doc.cm, \"beforeSelectionChange\", doc.cm, obj); }\n    if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }\n    else { return sel }\n  }\n\n  function setSelectionReplaceHistory(doc, sel, options) {\n    var done = doc.history.done, last = lst(done);\n    if (last && last.ranges) {\n      done[done.length - 1] = sel;\n      setSelectionNoUndo(doc, sel, options);\n    } else {\n      setSelection(doc, sel, options);\n    }\n  }\n\n  // Set a new selection.\n  function setSelection(doc, sel, options) {\n    setSelectionNoUndo(doc, sel, options);\n    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);\n  }\n\n  function setSelectionNoUndo(doc, sel, options) {\n    if (hasHandler(doc, \"beforeSelectionChange\") || doc.cm && hasHandler(doc.cm, \"beforeSelectionChange\"))\n      { sel = filterSelectionChange(doc, sel, options); }\n\n    var bias = options && options.bias ||\n      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);\n    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));\n\n    if (!(options && options.scroll === false) && doc.cm)\n      { ensureCursorVisible(doc.cm); }\n  }\n\n  function setSelectionInner(doc, sel) {\n    if (sel.equals(doc.sel)) { return }\n\n    doc.sel = sel;\n\n    if (doc.cm) {\n      doc.cm.curOp.updateInput = 1;\n      doc.cm.curOp.selectionChanged = true;\n      signalCursorActivity(doc.cm);\n    }\n    signalLater(doc, \"cursorActivity\", doc);\n  }\n\n  // Verify that the selection does not partially select any atomic\n  // marked ranges.\n  function reCheckSelection(doc) {\n    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));\n  }\n\n  // Return a selection that does not partially select any atomic\n  // ranges.\n  function skipAtomicInSelection(doc, sel, bias, mayClear) {\n    var out;\n    for (var i = 0; i < sel.ranges.length; i++) {\n      var range = sel.ranges[i];\n      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];\n      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);\n      var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);\n      if (out || newAnchor != range.anchor || newHead != range.head) {\n        if (!out) { out = sel.ranges.slice(0, i); }\n        out[i] = new Range(newAnchor, newHead);\n      }\n    }\n    return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel\n  }\n\n  function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {\n    var line = getLine(doc, pos.line);\n    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n      var sp = line.markedSpans[i], m = sp.marker;\n\n      // Determine if we should prevent the cursor being placed to the left/right of an atomic marker\n      // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it\n      // is with selectLeft/Right\n      var preventCursorLeft = (\"selectLeft\" in m) ? !m.selectLeft : m.inclusiveLeft;\n      var preventCursorRight = (\"selectRight\" in m) ? !m.selectRight : m.inclusiveRight;\n\n      if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&\n          (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {\n        if (mayClear) {\n          signal(m, \"beforeCursorEnter\");\n          if (m.explicitlyCleared) {\n            if (!line.markedSpans) { break }\n            else {--i; continue}\n          }\n        }\n        if (!m.atomic) { continue }\n\n        if (oldPos) {\n          var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);\n          if (dir < 0 ? preventCursorRight : preventCursorLeft)\n            { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }\n          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))\n            { return skipAtomicInner(doc, near, pos, dir, mayClear) }\n        }\n\n        var far = m.find(dir < 0 ? -1 : 1);\n        if (dir < 0 ? preventCursorLeft : preventCursorRight)\n          { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }\n        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null\n      }\n    } }\n    return pos\n  }\n\n  // Ensure a given position is not inside an atomic range.\n  function skipAtomic(doc, pos, oldPos, bias, mayClear) {\n    var dir = bias || 1;\n    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||\n        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||\n        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||\n        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));\n    if (!found) {\n      doc.cantEdit = true;\n      return Pos(doc.first, 0)\n    }\n    return found\n  }\n\n  function movePos(doc, pos, dir, line) {\n    if (dir < 0 && pos.ch == 0) {\n      if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }\n      else { return null }\n    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {\n      if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }\n      else { return null }\n    } else {\n      return new Pos(pos.line, pos.ch + dir)\n    }\n  }\n\n  function selectAll(cm) {\n    cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);\n  }\n\n  // UPDATING\n\n  // Allow \"beforeChange\" event handlers to influence a change\n  function filterChange(doc, change, update) {\n    var obj = {\n      canceled: false,\n      from: change.from,\n      to: change.to,\n      text: change.text,\n      origin: change.origin,\n      cancel: function () { return obj.canceled = true; }\n    };\n    if (update) { obj.update = function (from, to, text, origin) {\n      if (from) { obj.from = clipPos(doc, from); }\n      if (to) { obj.to = clipPos(doc, to); }\n      if (text) { obj.text = text; }\n      if (origin !== undefined) { obj.origin = origin; }\n    }; }\n    signal(doc, \"beforeChange\", doc, obj);\n    if (doc.cm) { signal(doc.cm, \"beforeChange\", doc.cm, obj); }\n\n    if (obj.canceled) {\n      if (doc.cm) { doc.cm.curOp.updateInput = 2; }\n      return null\n    }\n    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}\n  }\n\n  // Apply a change to a document, and add it to the document's\n  // history, and propagating it to all linked documents.\n  function makeChange(doc, change, ignoreReadOnly) {\n    if (doc.cm) {\n      if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }\n      if (doc.cm.state.suppressEdits) { return }\n    }\n\n    if (hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\")) {\n      change = filterChange(doc, change, true);\n      if (!change) { return }\n    }\n\n    // Possibly split or suppress the update based on the presence\n    // of read-only spans in its range.\n    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);\n    if (split) {\n      for (var i = split.length - 1; i >= 0; --i)\n        { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [\"\"] : change.text, origin: change.origin}); }\n    } else {\n      makeChangeInner(doc, change);\n    }\n  }\n\n  function makeChangeInner(doc, change) {\n    if (change.text.length == 1 && change.text[0] == \"\" && cmp(change.from, change.to) == 0) { return }\n    var selAfter = computeSelAfterChange(doc, change);\n    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);\n\n    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));\n    var rebased = [];\n\n    linkedDocs(doc, function (doc, sharedHist) {\n      if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n        rebaseHist(doc.history, change);\n        rebased.push(doc.history);\n      }\n      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));\n    });\n  }\n\n  // Revert a change stored in a document's history.\n  function makeChangeFromHistory(doc, type, allowSelectionOnly) {\n    var suppress = doc.cm && doc.cm.state.suppressEdits;\n    if (suppress && !allowSelectionOnly) { return }\n\n    var hist = doc.history, event, selAfter = doc.sel;\n    var source = type == \"undo\" ? hist.done : hist.undone, dest = type == \"undo\" ? hist.undone : hist.done;\n\n    // Verify that there is a useable event (so that ctrl-z won't\n    // needlessly clear selection events)\n    var i = 0;\n    for (; i < source.length; i++) {\n      event = source[i];\n      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)\n        { break }\n    }\n    if (i == source.length) { return }\n    hist.lastOrigin = hist.lastSelOrigin = null;\n\n    for (;;) {\n      event = source.pop();\n      if (event.ranges) {\n        pushSelectionToHistory(event, dest);\n        if (allowSelectionOnly && !event.equals(doc.sel)) {\n          setSelection(doc, event, {clearRedo: false});\n          return\n        }\n        selAfter = event;\n      } else if (suppress) {\n        source.push(event);\n        return\n      } else { break }\n    }\n\n    // Build up a reverse change object to add to the opposite history\n    // stack (redo when undoing, and vice versa).\n    var antiChanges = [];\n    pushSelectionToHistory(selAfter, dest);\n    dest.push({changes: antiChanges, generation: hist.generation});\n    hist.generation = event.generation || ++hist.maxGeneration;\n\n    var filter = hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\");\n\n    var loop = function ( i ) {\n      var change = event.changes[i];\n      change.origin = type;\n      if (filter && !filterChange(doc, change, false)) {\n        source.length = 0;\n        return {}\n      }\n\n      antiChanges.push(historyChangeFromChange(doc, change));\n\n      var after = i ? computeSelAfterChange(doc, change) : lst(source);\n      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));\n      if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }\n      var rebased = [];\n\n      // Propagate to the linked documents\n      linkedDocs(doc, function (doc, sharedHist) {\n        if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n          rebaseHist(doc.history, change);\n          rebased.push(doc.history);\n        }\n        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));\n      });\n    };\n\n    for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {\n      var returned = loop( i$1 );\n\n      if ( returned ) return returned.v;\n    }\n  }\n\n  // Sub-views need their line numbers shifted when text is added\n  // above or below them in the parent document.\n  function shiftDoc(doc, distance) {\n    if (distance == 0) { return }\n    doc.first += distance;\n    doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(\n      Pos(range.anchor.line + distance, range.anchor.ch),\n      Pos(range.head.line + distance, range.head.ch)\n    ); }), doc.sel.primIndex);\n    if (doc.cm) {\n      regChange(doc.cm, doc.first, doc.first - distance, distance);\n      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)\n        { regLineChange(doc.cm, l, \"gutter\"); }\n    }\n  }\n\n  // More lower-level change function, handling only a single document\n  // (not linked ones).\n  function makeChangeSingleDoc(doc, change, selAfter, spans) {\n    if (doc.cm && !doc.cm.curOp)\n      { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }\n\n    if (change.to.line < doc.first) {\n      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));\n      return\n    }\n    if (change.from.line > doc.lastLine()) { return }\n\n    // Clip the change to the size of this doc\n    if (change.from.line < doc.first) {\n      var shift = change.text.length - 1 - (doc.first - change.from.line);\n      shiftDoc(doc, shift);\n      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),\n                text: [lst(change.text)], origin: change.origin};\n    }\n    var last = doc.lastLine();\n    if (change.to.line > last) {\n      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),\n                text: [change.text[0]], origin: change.origin};\n    }\n\n    change.removed = getBetween(doc, change.from, change.to);\n\n    if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }\n    if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }\n    else { updateDoc(doc, change, spans); }\n    setSelectionNoUndo(doc, selAfter, sel_dontScroll);\n\n    if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))\n      { doc.cantEdit = false; }\n  }\n\n  // Handle the interaction of a change to a document with the editor\n  // that this document is part of.\n  function makeChangeSingleDocInEditor(cm, change, spans) {\n    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;\n\n    var recomputeMaxLength = false, checkWidthStart = from.line;\n    if (!cm.options.lineWrapping) {\n      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));\n      doc.iter(checkWidthStart, to.line + 1, function (line) {\n        if (line == display.maxLine) {\n          recomputeMaxLength = true;\n          return true\n        }\n      });\n    }\n\n    if (doc.sel.contains(change.from, change.to) > -1)\n      { signalCursorActivity(cm); }\n\n    updateDoc(doc, change, spans, estimateHeight(cm));\n\n    if (!cm.options.lineWrapping) {\n      doc.iter(checkWidthStart, from.line + change.text.length, function (line) {\n        var len = lineLength(line);\n        if (len > display.maxLineLength) {\n          display.maxLine = line;\n          display.maxLineLength = len;\n          display.maxLineChanged = true;\n          recomputeMaxLength = false;\n        }\n      });\n      if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }\n    }\n\n    retreatFrontier(doc, from.line);\n    startWorker(cm, 400);\n\n    var lendiff = change.text.length - (to.line - from.line) - 1;\n    // Remember that these lines changed, for updating the display\n    if (change.full)\n      { regChange(cm); }\n    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))\n      { regLineChange(cm, from.line, \"text\"); }\n    else\n      { regChange(cm, from.line, to.line + 1, lendiff); }\n\n    var changesHandler = hasHandler(cm, \"changes\"), changeHandler = hasHandler(cm, \"change\");\n    if (changeHandler || changesHandler) {\n      var obj = {\n        from: from, to: to,\n        text: change.text,\n        removed: change.removed,\n        origin: change.origin\n      };\n      if (changeHandler) { signalLater(cm, \"change\", cm, obj); }\n      if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }\n    }\n    cm.display.selForContextMenu = null;\n  }\n\n  function replaceRange(doc, code, from, to, origin) {\n    var assign;\n\n    if (!to) { to = from; }\n    if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }\n    if (typeof code == \"string\") { code = doc.splitLines(code); }\n    makeChange(doc, {from: from, to: to, text: code, origin: origin});\n  }\n\n  // Rebasing/resetting history to deal with externally-sourced changes\n\n  function rebaseHistSelSingle(pos, from, to, diff) {\n    if (to < pos.line) {\n      pos.line += diff;\n    } else if (from < pos.line) {\n      pos.line = from;\n      pos.ch = 0;\n    }\n  }\n\n  // Tries to rebase an array of history events given a change in the\n  // document. If the change touches the same lines as the event, the\n  // event, and everything 'behind' it, is discarded. If the change is\n  // before the event, the event's positions are updated. Uses a\n  // copy-on-write scheme for the positions, to avoid having to\n  // reallocate them all on every rebase, but also avoid problems with\n  // shared position objects being unsafely updated.\n  function rebaseHistArray(array, from, to, diff) {\n    for (var i = 0; i < array.length; ++i) {\n      var sub = array[i], ok = true;\n      if (sub.ranges) {\n        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }\n        for (var j = 0; j < sub.ranges.length; j++) {\n          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);\n          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);\n        }\n        continue\n      }\n      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {\n        var cur = sub.changes[j$1];\n        if (to < cur.from.line) {\n          cur.from = Pos(cur.from.line + diff, cur.from.ch);\n          cur.to = Pos(cur.to.line + diff, cur.to.ch);\n        } else if (from <= cur.to.line) {\n          ok = false;\n          break\n        }\n      }\n      if (!ok) {\n        array.splice(0, i + 1);\n        i = 0;\n      }\n    }\n  }\n\n  function rebaseHist(hist, change) {\n    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;\n    rebaseHistArray(hist.done, from, to, diff);\n    rebaseHistArray(hist.undone, from, to, diff);\n  }\n\n  // Utility for applying a change to a line by handle or number,\n  // returning the number and optionally registering the line as\n  // changed.\n  function changeLine(doc, handle, changeType, op) {\n    var no = handle, line = handle;\n    if (typeof handle == \"number\") { line = getLine(doc, clipLine(doc, handle)); }\n    else { no = lineNo(handle); }\n    if (no == null) { return null }\n    if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }\n    return line\n  }\n\n  // The document is represented as a BTree consisting of leaves, with\n  // chunk of lines in them, and branches, with up to ten leaves or\n  // other branch nodes below them. The top node is always a branch\n  // node, and is the document object itself (meaning it has\n  // additional methods and properties).\n  //\n  // All nodes have parent links. The tree is used both to go from\n  // line numbers to line objects, and to go from objects to numbers.\n  // It also indexes by height, and is used to convert between height\n  // and line object, and to find the total height of the document.\n  //\n  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html\n\n  function LeafChunk(lines) {\n    this.lines = lines;\n    this.parent = null;\n    var height = 0;\n    for (var i = 0; i < lines.length; ++i) {\n      lines[i].parent = this;\n      height += lines[i].height;\n    }\n    this.height = height;\n  }\n\n  LeafChunk.prototype = {\n    chunkSize: function() { return this.lines.length },\n\n    // Remove the n lines at offset 'at'.\n    removeInner: function(at, n) {\n      for (var i = at, e = at + n; i < e; ++i) {\n        var line = this.lines[i];\n        this.height -= line.height;\n        cleanUpLine(line);\n        signalLater(line, \"delete\");\n      }\n      this.lines.splice(at, n);\n    },\n\n    // Helper used to collapse a small branch into a single leaf.\n    collapse: function(lines) {\n      lines.push.apply(lines, this.lines);\n    },\n\n    // Insert the given array of lines at offset 'at', count them as\n    // having the given height.\n    insertInner: function(at, lines, height) {\n      this.height += height;\n      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));\n      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }\n    },\n\n    // Used to iterate over a part of the tree.\n    iterN: function(at, n, op) {\n      for (var e = at + n; at < e; ++at)\n        { if (op(this.lines[at])) { return true } }\n    }\n  };\n\n  function BranchChunk(children) {\n    this.children = children;\n    var size = 0, height = 0;\n    for (var i = 0; i < children.length; ++i) {\n      var ch = children[i];\n      size += ch.chunkSize(); height += ch.height;\n      ch.parent = this;\n    }\n    this.size = size;\n    this.height = height;\n    this.parent = null;\n  }\n\n  BranchChunk.prototype = {\n    chunkSize: function() { return this.size },\n\n    removeInner: function(at, n) {\n      this.size -= n;\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this.children[i], sz = child.chunkSize();\n        if (at < sz) {\n          var rm = Math.min(n, sz - at), oldHeight = child.height;\n          child.removeInner(at, rm);\n          this.height -= oldHeight - child.height;\n          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }\n          if ((n -= rm) == 0) { break }\n          at = 0;\n        } else { at -= sz; }\n      }\n      // If the result is smaller than 25 lines, ensure that it is a\n      // single leaf node.\n      if (this.size - n < 25 &&\n          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {\n        var lines = [];\n        this.collapse(lines);\n        this.children = [new LeafChunk(lines)];\n        this.children[0].parent = this;\n      }\n    },\n\n    collapse: function(lines) {\n      for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }\n    },\n\n    insertInner: function(at, lines, height) {\n      this.size += lines.length;\n      this.height += height;\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this.children[i], sz = child.chunkSize();\n        if (at <= sz) {\n          child.insertInner(at, lines, height);\n          if (child.lines && child.lines.length > 50) {\n            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.\n            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.\n            var remaining = child.lines.length % 25 + 25;\n            for (var pos = remaining; pos < child.lines.length;) {\n              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));\n              child.height -= leaf.height;\n              this.children.splice(++i, 0, leaf);\n              leaf.parent = this;\n            }\n            child.lines = child.lines.slice(0, remaining);\n            this.maybeSpill();\n          }\n          break\n        }\n        at -= sz;\n      }\n    },\n\n    // When a node has grown, check whether it should be split.\n    maybeSpill: function() {\n      if (this.children.length <= 10) { return }\n      var me = this;\n      do {\n        var spilled = me.children.splice(me.children.length - 5, 5);\n        var sibling = new BranchChunk(spilled);\n        if (!me.parent) { // Become the parent node\n          var copy = new BranchChunk(me.children);\n          copy.parent = me;\n          me.children = [copy, sibling];\n          me = copy;\n       } else {\n          me.size -= sibling.size;\n          me.height -= sibling.height;\n          var myIndex = indexOf(me.parent.children, me);\n          me.parent.children.splice(myIndex + 1, 0, sibling);\n        }\n        sibling.parent = me.parent;\n      } while (me.children.length > 10)\n      me.parent.maybeSpill();\n    },\n\n    iterN: function(at, n, op) {\n      for (var i = 0; i < this.children.length; ++i) {\n        var child = this.children[i], sz = child.chunkSize();\n        if (at < sz) {\n          var used = Math.min(n, sz - at);\n          if (child.iterN(at, used, op)) { return true }\n          if ((n -= used) == 0) { break }\n          at = 0;\n        } else { at -= sz; }\n      }\n    }\n  };\n\n  // Line widgets are block elements displayed above or below a line.\n\n  var LineWidget = function(doc, node, options) {\n    if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))\n      { this[opt] = options[opt]; } } }\n    this.doc = doc;\n    this.node = node;\n  };\n\n  LineWidget.prototype.clear = function () {\n    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);\n    if (no == null || !ws) { return }\n    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }\n    if (!ws.length) { line.widgets = null; }\n    var height = widgetHeight(this);\n    updateLineHeight(line, Math.max(0, line.height - height));\n    if (cm) {\n      runInOp(cm, function () {\n        adjustScrollWhenAboveVisible(cm, line, -height);\n        regLineChange(cm, no, \"widget\");\n      });\n      signalLater(cm, \"lineWidgetCleared\", cm, this, no);\n    }\n  };\n\n  LineWidget.prototype.changed = function () {\n      var this$1 = this;\n\n    var oldH = this.height, cm = this.doc.cm, line = this.line;\n    this.height = null;\n    var diff = widgetHeight(this) - oldH;\n    if (!diff) { return }\n    if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }\n    if (cm) {\n      runInOp(cm, function () {\n        cm.curOp.forceUpdate = true;\n        adjustScrollWhenAboveVisible(cm, line, diff);\n        signalLater(cm, \"lineWidgetChanged\", cm, this$1, lineNo(line));\n      });\n    }\n  };\n  eventMixin(LineWidget);\n\n  function adjustScrollWhenAboveVisible(cm, line, diff) {\n    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))\n      { addToScrollTop(cm, diff); }\n  }\n\n  function addLineWidget(doc, handle, node, options) {\n    var widget = new LineWidget(doc, node, options);\n    var cm = doc.cm;\n    if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }\n    changeLine(doc, handle, \"widget\", function (line) {\n      var widgets = line.widgets || (line.widgets = []);\n      if (widget.insertAt == null) { widgets.push(widget); }\n      else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }\n      widget.line = line;\n      if (cm && !lineIsHidden(doc, line)) {\n        var aboveVisible = heightAtLine(line) < doc.scrollTop;\n        updateLineHeight(line, line.height + widgetHeight(widget));\n        if (aboveVisible) { addToScrollTop(cm, widget.height); }\n        cm.curOp.forceUpdate = true;\n      }\n      return true\n    });\n    if (cm) { signalLater(cm, \"lineWidgetAdded\", cm, widget, typeof handle == \"number\" ? handle : lineNo(handle)); }\n    return widget\n  }\n\n  // TEXTMARKERS\n\n  // Created with markText and setBookmark methods. A TextMarker is a\n  // handle that can be used to clear or find a marked position in the\n  // document. Line objects hold arrays (markedSpans) containing\n  // {from, to, marker} object pointing to such marker objects, and\n  // indicating that such a marker is present on that line. Multiple\n  // lines may point to the same marker when it spans across lines.\n  // The spans will have null for their from/to properties when the\n  // marker continues beyond the start/end of the line. Markers have\n  // links back to the lines they currently touch.\n\n  // Collapsed markers have unique ids, in order to be able to order\n  // them, which is needed for uniquely determining an outer marker\n  // when they overlap (they may nest, but not partially overlap).\n  var nextMarkerId = 0;\n\n  var TextMarker = function(doc, type) {\n    this.lines = [];\n    this.type = type;\n    this.doc = doc;\n    this.id = ++nextMarkerId;\n  };\n\n  // Clear the marker.\n  TextMarker.prototype.clear = function () {\n    if (this.explicitlyCleared) { return }\n    var cm = this.doc.cm, withOp = cm && !cm.curOp;\n    if (withOp) { startOperation(cm); }\n    if (hasHandler(this, \"clear\")) {\n      var found = this.find();\n      if (found) { signalLater(this, \"clear\", found.from, found.to); }\n    }\n    var min = null, max = null;\n    for (var i = 0; i < this.lines.length; ++i) {\n      var line = this.lines[i];\n      var span = getMarkedSpanFor(line.markedSpans, this);\n      if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), \"text\"); }\n      else if (cm) {\n        if (span.to != null) { max = lineNo(line); }\n        if (span.from != null) { min = lineNo(line); }\n      }\n      line.markedSpans = removeMarkedSpan(line.markedSpans, span);\n      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)\n        { updateLineHeight(line, textHeight(cm.display)); }\n    }\n    if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {\n      var visual = visualLine(this.lines[i$1]), len = lineLength(visual);\n      if (len > cm.display.maxLineLength) {\n        cm.display.maxLine = visual;\n        cm.display.maxLineLength = len;\n        cm.display.maxLineChanged = true;\n      }\n    } }\n\n    if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }\n    this.lines.length = 0;\n    this.explicitlyCleared = true;\n    if (this.atomic && this.doc.cantEdit) {\n      this.doc.cantEdit = false;\n      if (cm) { reCheckSelection(cm.doc); }\n    }\n    if (cm) { signalLater(cm, \"markerCleared\", cm, this, min, max); }\n    if (withOp) { endOperation(cm); }\n    if (this.parent) { this.parent.clear(); }\n  };\n\n  // Find the position of the marker in the document. Returns a {from,\n  // to} object by default. Side can be passed to get a specific side\n  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the\n  // Pos objects returned contain a line object, rather than a line\n  // number (used to prevent looking up the same line twice).\n  TextMarker.prototype.find = function (side, lineObj) {\n    if (side == null && this.type == \"bookmark\") { side = 1; }\n    var from, to;\n    for (var i = 0; i < this.lines.length; ++i) {\n      var line = this.lines[i];\n      var span = getMarkedSpanFor(line.markedSpans, this);\n      if (span.from != null) {\n        from = Pos(lineObj ? line : lineNo(line), span.from);\n        if (side == -1) { return from }\n      }\n      if (span.to != null) {\n        to = Pos(lineObj ? line : lineNo(line), span.to);\n        if (side == 1) { return to }\n      }\n    }\n    return from && {from: from, to: to}\n  };\n\n  // Signals that the marker's widget changed, and surrounding layout\n  // should be recomputed.\n  TextMarker.prototype.changed = function () {\n      var this$1 = this;\n\n    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;\n    if (!pos || !cm) { return }\n    runInOp(cm, function () {\n      var line = pos.line, lineN = lineNo(pos.line);\n      var view = findViewForLine(cm, lineN);\n      if (view) {\n        clearLineMeasurementCacheFor(view);\n        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;\n      }\n      cm.curOp.updateMaxLine = true;\n      if (!lineIsHidden(widget.doc, line) && widget.height != null) {\n        var oldHeight = widget.height;\n        widget.height = null;\n        var dHeight = widgetHeight(widget) - oldHeight;\n        if (dHeight)\n          { updateLineHeight(line, line.height + dHeight); }\n      }\n      signalLater(cm, \"markerChanged\", cm, this$1);\n    });\n  };\n\n  TextMarker.prototype.attachLine = function (line) {\n    if (!this.lines.length && this.doc.cm) {\n      var op = this.doc.cm.curOp;\n      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)\n        { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }\n    }\n    this.lines.push(line);\n  };\n\n  TextMarker.prototype.detachLine = function (line) {\n    this.lines.splice(indexOf(this.lines, line), 1);\n    if (!this.lines.length && this.doc.cm) {\n      var op = this.doc.cm.curOp\n      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);\n    }\n  };\n  eventMixin(TextMarker);\n\n  // Create a marker, wire it up to the right lines, and\n  function markText(doc, from, to, options, type) {\n    // Shared markers (across linked documents) are handled separately\n    // (markTextShared will call out to this again, once per\n    // document).\n    if (options && options.shared) { return markTextShared(doc, from, to, options, type) }\n    // Ensure we are in an operation.\n    if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }\n\n    var marker = new TextMarker(doc, type), diff = cmp(from, to);\n    if (options) { copyObj(options, marker, false); }\n    // Don't connect empty markers unless clearWhenEmpty is false\n    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)\n      { return marker }\n    if (marker.replacedWith) {\n      // Showing up as a widget implies collapsed (widget replaces text)\n      marker.collapsed = true;\n      marker.widgetNode = eltP(\"span\", [marker.replacedWith], \"CodeMirror-widget\");\n      if (!options.handleMouseEvents) { marker.widgetNode.setAttribute(\"cm-ignore-events\", \"true\"); }\n      if (options.insertLeft) { marker.widgetNode.insertLeft = true; }\n    }\n    if (marker.collapsed) {\n      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||\n          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))\n        { throw new Error(\"Inserting collapsed marker partially overlapping an existing one\") }\n      seeCollapsedSpans();\n    }\n\n    if (marker.addToHistory)\n      { addChangeToHistory(doc, {from: from, to: to, origin: \"markText\"}, doc.sel, NaN); }\n\n    var curLine = from.line, cm = doc.cm, updateMaxLine;\n    doc.iter(curLine, to.line + 1, function (line) {\n      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)\n        { updateMaxLine = true; }\n      if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }\n      addMarkedSpan(line, new MarkedSpan(marker,\n                                         curLine == from.line ? from.ch : null,\n                                         curLine == to.line ? to.ch : null));\n      ++curLine;\n    });\n    // lineIsHidden depends on the presence of the spans, so needs a second pass\n    if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {\n      if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }\n    }); }\n\n    if (marker.clearOnEnter) { on(marker, \"beforeCursorEnter\", function () { return marker.clear(); }); }\n\n    if (marker.readOnly) {\n      seeReadOnlySpans();\n      if (doc.history.done.length || doc.history.undone.length)\n        { doc.clearHistory(); }\n    }\n    if (marker.collapsed) {\n      marker.id = ++nextMarkerId;\n      marker.atomic = true;\n    }\n    if (cm) {\n      // Sync editor state\n      if (updateMaxLine) { cm.curOp.updateMaxLine = true; }\n      if (marker.collapsed)\n        { regChange(cm, from.line, to.line + 1); }\n      else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||\n               marker.attributes || marker.title)\n        { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, \"text\"); } }\n      if (marker.atomic) { reCheckSelection(cm.doc); }\n      signalLater(cm, \"markerAdded\", cm, marker);\n    }\n    return marker\n  }\n\n  // SHARED TEXTMARKERS\n\n  // A shared marker spans multiple linked documents. It is\n  // implemented as a meta-marker-object controlling multiple normal\n  // markers.\n  var SharedTextMarker = function(markers, primary) {\n    this.markers = markers;\n    this.primary = primary;\n    for (var i = 0; i < markers.length; ++i)\n      { markers[i].parent = this; }\n  };\n\n  SharedTextMarker.prototype.clear = function () {\n    if (this.explicitlyCleared) { return }\n    this.explicitlyCleared = true;\n    for (var i = 0; i < this.markers.length; ++i)\n      { this.markers[i].clear(); }\n    signalLater(this, \"clear\");\n  };\n\n  SharedTextMarker.prototype.find = function (side, lineObj) {\n    return this.primary.find(side, lineObj)\n  };\n  eventMixin(SharedTextMarker);\n\n  function markTextShared(doc, from, to, options, type) {\n    options = copyObj(options);\n    options.shared = false;\n    var markers = [markText(doc, from, to, options, type)], primary = markers[0];\n    var widget = options.widgetNode;\n    linkedDocs(doc, function (doc) {\n      if (widget) { options.widgetNode = widget.cloneNode(true); }\n      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));\n      for (var i = 0; i < doc.linked.length; ++i)\n        { if (doc.linked[i].isParent) { return } }\n      primary = lst(markers);\n    });\n    return new SharedTextMarker(markers, primary)\n  }\n\n  function findSharedMarkers(doc) {\n    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })\n  }\n\n  function copySharedMarkers(doc, markers) {\n    for (var i = 0; i < markers.length; i++) {\n      var marker = markers[i], pos = marker.find();\n      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);\n      if (cmp(mFrom, mTo)) {\n        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);\n        marker.markers.push(subMark);\n        subMark.parent = marker;\n      }\n    }\n  }\n\n  function detachSharedMarkers(markers) {\n    var loop = function ( i ) {\n      var marker = markers[i], linked = [marker.primary.doc];\n      linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });\n      for (var j = 0; j < marker.markers.length; j++) {\n        var subMarker = marker.markers[j];\n        if (indexOf(linked, subMarker.doc) == -1) {\n          subMarker.parent = null;\n          marker.markers.splice(j--, 1);\n        }\n      }\n    };\n\n    for (var i = 0; i < markers.length; i++) loop( i );\n  }\n\n  var nextDocId = 0;\n  var Doc = function(text, mode, firstLine, lineSep, direction) {\n    if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }\n    if (firstLine == null) { firstLine = 0; }\n\n    BranchChunk.call(this, [new LeafChunk([new Line(\"\", null)])]);\n    this.first = firstLine;\n    this.scrollTop = this.scrollLeft = 0;\n    this.cantEdit = false;\n    this.cleanGeneration = 1;\n    this.modeFrontier = this.highlightFrontier = firstLine;\n    var start = Pos(firstLine, 0);\n    this.sel = simpleSelection(start);\n    this.history = new History(null);\n    this.id = ++nextDocId;\n    this.modeOption = mode;\n    this.lineSep = lineSep;\n    this.direction = (direction == \"rtl\") ? \"rtl\" : \"ltr\";\n    this.extend = false;\n\n    if (typeof text == \"string\") { text = this.splitLines(text); }\n    updateDoc(this, {from: start, to: start, text: text});\n    setSelection(this, simpleSelection(start), sel_dontScroll);\n  };\n\n  Doc.prototype = createObj(BranchChunk.prototype, {\n    constructor: Doc,\n    // Iterate over the document. Supports two forms -- with only one\n    // argument, it calls that for each line in the document. With\n    // three, it iterates over the range given by the first two (with\n    // the second being non-inclusive).\n    iter: function(from, to, op) {\n      if (op) { this.iterN(from - this.first, to - from, op); }\n      else { this.iterN(this.first, this.first + this.size, from); }\n    },\n\n    // Non-public interface for adding and removing lines.\n    insert: function(at, lines) {\n      var height = 0;\n      for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }\n      this.insertInner(at - this.first, lines, height);\n    },\n    remove: function(at, n) { this.removeInner(at - this.first, n); },\n\n    // From here, the methods are part of the public interface. Most\n    // are also available from CodeMirror (editor) instances.\n\n    getValue: function(lineSep) {\n      var lines = getLines(this, this.first, this.first + this.size);\n      if (lineSep === false) { return lines }\n      return lines.join(lineSep || this.lineSeparator())\n    },\n    setValue: docMethodOp(function(code) {\n      var top = Pos(this.first, 0), last = this.first + this.size - 1;\n      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),\n                        text: this.splitLines(code), origin: \"setValue\", full: true}, true);\n      if (this.cm) { scrollToCoords(this.cm, 0, 0); }\n      setSelection(this, simpleSelection(top), sel_dontScroll);\n    }),\n    replaceRange: function(code, from, to, origin) {\n      from = clipPos(this, from);\n      to = to ? clipPos(this, to) : from;\n      replaceRange(this, code, from, to, origin);\n    },\n    getRange: function(from, to, lineSep) {\n      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));\n      if (lineSep === false) { return lines }\n      return lines.join(lineSep || this.lineSeparator())\n    },\n\n    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},\n\n    getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},\n    getLineNumber: function(line) {return lineNo(line)},\n\n    getLineHandleVisualStart: function(line) {\n      if (typeof line == \"number\") { line = getLine(this, line); }\n      return visualLine(line)\n    },\n\n    lineCount: function() {return this.size},\n    firstLine: function() {return this.first},\n    lastLine: function() {return this.first + this.size - 1},\n\n    clipPos: function(pos) {return clipPos(this, pos)},\n\n    getCursor: function(start) {\n      var range = this.sel.primary(), pos;\n      if (start == null || start == \"head\") { pos = range.head; }\n      else if (start == \"anchor\") { pos = range.anchor; }\n      else if (start == \"end\" || start == \"to\" || start === false) { pos = range.to(); }\n      else { pos = range.from(); }\n      return pos\n    },\n    listSelections: function() { return this.sel.ranges },\n    somethingSelected: function() {return this.sel.somethingSelected()},\n\n    setCursor: docMethodOp(function(line, ch, options) {\n      setSimpleSelection(this, clipPos(this, typeof line == \"number\" ? Pos(line, ch || 0) : line), null, options);\n    }),\n    setSelection: docMethodOp(function(anchor, head, options) {\n      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);\n    }),\n    extendSelection: docMethodOp(function(head, other, options) {\n      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);\n    }),\n    extendSelections: docMethodOp(function(heads, options) {\n      extendSelections(this, clipPosArray(this, heads), options);\n    }),\n    extendSelectionsBy: docMethodOp(function(f, options) {\n      var heads = map(this.sel.ranges, f);\n      extendSelections(this, clipPosArray(this, heads), options);\n    }),\n    setSelections: docMethodOp(function(ranges, primary, options) {\n      if (!ranges.length) { return }\n      var out = [];\n      for (var i = 0; i < ranges.length; i++)\n        { out[i] = new Range(clipPos(this, ranges[i].anchor),\n                           clipPos(this, ranges[i].head)); }\n      if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }\n      setSelection(this, normalizeSelection(this.cm, out, primary), options);\n    }),\n    addSelection: docMethodOp(function(anchor, head, options) {\n      var ranges = this.sel.ranges.slice(0);\n      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));\n      setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);\n    }),\n\n    getSelection: function(lineSep) {\n      var ranges = this.sel.ranges, lines;\n      for (var i = 0; i < ranges.length; i++) {\n        var sel = getBetween(this, ranges[i].from(), ranges[i].to());\n        lines = lines ? lines.concat(sel) : sel;\n      }\n      if (lineSep === false) { return lines }\n      else { return lines.join(lineSep || this.lineSeparator()) }\n    },\n    getSelections: function(lineSep) {\n      var parts = [], ranges = this.sel.ranges;\n      for (var i = 0; i < ranges.length; i++) {\n        var sel = getBetween(this, ranges[i].from(), ranges[i].to());\n        if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }\n        parts[i] = sel;\n      }\n      return parts\n    },\n    replaceSelection: function(code, collapse, origin) {\n      var dup = [];\n      for (var i = 0; i < this.sel.ranges.length; i++)\n        { dup[i] = code; }\n      this.replaceSelections(dup, collapse, origin || \"+input\");\n    },\n    replaceSelections: docMethodOp(function(code, collapse, origin) {\n      var changes = [], sel = this.sel;\n      for (var i = 0; i < sel.ranges.length; i++) {\n        var range = sel.ranges[i];\n        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};\n      }\n      var newSel = collapse && collapse != \"end\" && computeReplacedSel(this, changes, collapse);\n      for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)\n        { makeChange(this, changes[i$1]); }\n      if (newSel) { setSelectionReplaceHistory(this, newSel); }\n      else if (this.cm) { ensureCursorVisible(this.cm); }\n    }),\n    undo: docMethodOp(function() {makeChangeFromHistory(this, \"undo\");}),\n    redo: docMethodOp(function() {makeChangeFromHistory(this, \"redo\");}),\n    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"undo\", true);}),\n    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"redo\", true);}),\n\n    setExtending: function(val) {this.extend = val;},\n    getExtending: function() {return this.extend},\n\n    historySize: function() {\n      var hist = this.history, done = 0, undone = 0;\n      for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }\n      for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }\n      return {undo: done, redo: undone}\n    },\n    clearHistory: function() {\n      var this$1 = this;\n\n      this.history = new History(this.history.maxGeneration);\n      linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);\n    },\n\n    markClean: function() {\n      this.cleanGeneration = this.changeGeneration(true);\n    },\n    changeGeneration: function(forceSplit) {\n      if (forceSplit)\n        { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }\n      return this.history.generation\n    },\n    isClean: function (gen) {\n      return this.history.generation == (gen || this.cleanGeneration)\n    },\n\n    getHistory: function() {\n      return {done: copyHistoryArray(this.history.done),\n              undone: copyHistoryArray(this.history.undone)}\n    },\n    setHistory: function(histData) {\n      var hist = this.history = new History(this.history.maxGeneration);\n      hist.done = copyHistoryArray(histData.done.slice(0), null, true);\n      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);\n    },\n\n    setGutterMarker: docMethodOp(function(line, gutterID, value) {\n      return changeLine(this, line, \"gutter\", function (line) {\n        var markers = line.gutterMarkers || (line.gutterMarkers = {});\n        markers[gutterID] = value;\n        if (!value && isEmpty(markers)) { line.gutterMarkers = null; }\n        return true\n      })\n    }),\n\n    clearGutter: docMethodOp(function(gutterID) {\n      var this$1 = this;\n\n      this.iter(function (line) {\n        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {\n          changeLine(this$1, line, \"gutter\", function () {\n            line.gutterMarkers[gutterID] = null;\n            if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }\n            return true\n          });\n        }\n      });\n    }),\n\n    lineInfo: function(line) {\n      var n;\n      if (typeof line == \"number\") {\n        if (!isLine(this, line)) { return null }\n        n = line;\n        line = getLine(this, line);\n        if (!line) { return null }\n      } else {\n        n = lineNo(line);\n        if (n == null) { return null }\n      }\n      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,\n              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,\n              widgets: line.widgets}\n    },\n\n    addLineClass: docMethodOp(function(handle, where, cls) {\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n        var prop = where == \"text\" ? \"textClass\"\n                 : where == \"background\" ? \"bgClass\"\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\n        if (!line[prop]) { line[prop] = cls; }\n        else if (classTest(cls).test(line[prop])) { return false }\n        else { line[prop] += \" \" + cls; }\n        return true\n      })\n    }),\n    removeLineClass: docMethodOp(function(handle, where, cls) {\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n        var prop = where == \"text\" ? \"textClass\"\n                 : where == \"background\" ? \"bgClass\"\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\n        var cur = line[prop];\n        if (!cur) { return false }\n        else if (cls == null) { line[prop] = null; }\n        else {\n          var found = cur.match(classTest(cls));\n          if (!found) { return false }\n          var end = found.index + found[0].length;\n          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? \"\" : \" \") + cur.slice(end) || null;\n        }\n        return true\n      })\n    }),\n\n    addLineWidget: docMethodOp(function(handle, node, options) {\n      return addLineWidget(this, handle, node, options)\n    }),\n    removeLineWidget: function(widget) { widget.clear(); },\n\n    markText: function(from, to, options) {\n      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || \"range\")\n    },\n    setBookmark: function(pos, options) {\n      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),\n                      insertLeft: options && options.insertLeft,\n                      clearWhenEmpty: false, shared: options && options.shared,\n                      handleMouseEvents: options && options.handleMouseEvents};\n      pos = clipPos(this, pos);\n      return markText(this, pos, pos, realOpts, \"bookmark\")\n    },\n    findMarksAt: function(pos) {\n      pos = clipPos(this, pos);\n      var markers = [], spans = getLine(this, pos.line).markedSpans;\n      if (spans) { for (var i = 0; i < spans.length; ++i) {\n        var span = spans[i];\n        if ((span.from == null || span.from <= pos.ch) &&\n            (span.to == null || span.to >= pos.ch))\n          { markers.push(span.marker.parent || span.marker); }\n      } }\n      return markers\n    },\n    findMarks: function(from, to, filter) {\n      from = clipPos(this, from); to = clipPos(this, to);\n      var found = [], lineNo = from.line;\n      this.iter(from.line, to.line + 1, function (line) {\n        var spans = line.markedSpans;\n        if (spans) { for (var i = 0; i < spans.length; i++) {\n          var span = spans[i];\n          if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||\n                span.from == null && lineNo != from.line ||\n                span.from != null && lineNo == to.line && span.from >= to.ch) &&\n              (!filter || filter(span.marker)))\n            { found.push(span.marker.parent || span.marker); }\n        } }\n        ++lineNo;\n      });\n      return found\n    },\n    getAllMarks: function() {\n      var markers = [];\n      this.iter(function (line) {\n        var sps = line.markedSpans;\n        if (sps) { for (var i = 0; i < sps.length; ++i)\n          { if (sps[i].from != null) { markers.push(sps[i].marker); } } }\n      });\n      return markers\n    },\n\n    posFromIndex: function(off) {\n      var ch, lineNo = this.first, sepSize = this.lineSeparator().length;\n      this.iter(function (line) {\n        var sz = line.text.length + sepSize;\n        if (sz > off) { ch = off; return true }\n        off -= sz;\n        ++lineNo;\n      });\n      return clipPos(this, Pos(lineNo, ch))\n    },\n    indexFromPos: function (coords) {\n      coords = clipPos(this, coords);\n      var index = coords.ch;\n      if (coords.line < this.first || coords.ch < 0) { return 0 }\n      var sepSize = this.lineSeparator().length;\n      this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value\n        index += line.text.length + sepSize;\n      });\n      return index\n    },\n\n    copy: function(copyHistory) {\n      var doc = new Doc(getLines(this, this.first, this.first + this.size),\n                        this.modeOption, this.first, this.lineSep, this.direction);\n      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;\n      doc.sel = this.sel;\n      doc.extend = false;\n      if (copyHistory) {\n        doc.history.undoDepth = this.history.undoDepth;\n        doc.setHistory(this.getHistory());\n      }\n      return doc\n    },\n\n    linkedDoc: function(options) {\n      if (!options) { options = {}; }\n      var from = this.first, to = this.first + this.size;\n      if (options.from != null && options.from > from) { from = options.from; }\n      if (options.to != null && options.to < to) { to = options.to; }\n      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);\n      if (options.sharedHist) { copy.history = this.history\n      ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});\n      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];\n      copySharedMarkers(copy, findSharedMarkers(this));\n      return copy\n    },\n    unlinkDoc: function(other) {\n      if (other instanceof CodeMirror) { other = other.doc; }\n      if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {\n        var link = this.linked[i];\n        if (link.doc != other) { continue }\n        this.linked.splice(i, 1);\n        other.unlinkDoc(this);\n        detachSharedMarkers(findSharedMarkers(this));\n        break\n      } }\n      // If the histories were shared, split them again\n      if (other.history == this.history) {\n        var splitIds = [other.id];\n        linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);\n        other.history = new History(null);\n        other.history.done = copyHistoryArray(this.history.done, splitIds);\n        other.history.undone = copyHistoryArray(this.history.undone, splitIds);\n      }\n    },\n    iterLinkedDocs: function(f) {linkedDocs(this, f);},\n\n    getMode: function() {return this.mode},\n    getEditor: function() {return this.cm},\n\n    splitLines: function(str) {\n      if (this.lineSep) { return str.split(this.lineSep) }\n      return splitLinesAuto(str)\n    },\n    lineSeparator: function() { return this.lineSep || \"\\n\" },\n\n    setDirection: docMethodOp(function (dir) {\n      if (dir != \"rtl\") { dir = \"ltr\"; }\n      if (dir == this.direction) { return }\n      this.direction = dir;\n      this.iter(function (line) { return line.order = null; });\n      if (this.cm) { directionChanged(this.cm); }\n    })\n  });\n\n  // Public alias.\n  Doc.prototype.eachLine = Doc.prototype.iter;\n\n  // Kludge to work around strange IE behavior where it'll sometimes\n  // re-fire a series of drag-related events right after the drop (#1551)\n  var lastDrop = 0;\n\n  function onDrop(e) {\n    var cm = this;\n    clearDragCursor(cm);\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))\n      { return }\n    e_preventDefault(e);\n    if (ie) { lastDrop = +new Date; }\n    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;\n    if (!pos || cm.isReadOnly()) { return }\n    // Might be a file drop, in which case we simply extract the text\n    // and insert it.\n    if (files && files.length && window.FileReader && window.File) {\n      var n = files.length, text = Array(n), read = 0;\n      var markAsReadAndPasteIfAllFilesAreRead = function () {\n        if (++read == n) {\n          operation(cm, function () {\n            pos = clipPos(cm.doc, pos);\n            var change = {from: pos, to: pos,\n                          text: cm.doc.splitLines(\n                              text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),\n                          origin: \"paste\"};\n            makeChange(cm.doc, change);\n            setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));\n          })();\n        }\n      };\n      var readTextFromFile = function (file, i) {\n        if (cm.options.allowDropFileTypes &&\n            indexOf(cm.options.allowDropFileTypes, file.type) == -1) {\n          markAsReadAndPasteIfAllFilesAreRead();\n          return\n        }\n        var reader = new FileReader;\n        reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };\n        reader.onload = function () {\n          var content = reader.result;\n          if (/[\\x00-\\x08\\x0e-\\x1f]{2}/.test(content)) {\n            markAsReadAndPasteIfAllFilesAreRead();\n            return\n          }\n          text[i] = content;\n          markAsReadAndPasteIfAllFilesAreRead();\n        };\n        reader.readAsText(file);\n      };\n      for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }\n    } else { // Normal drop\n      // Don't do a replace if the drop happened inside of the selected text.\n      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {\n        cm.state.draggingText(e);\n        // Ensure the editor is re-focused\n        setTimeout(function () { return cm.display.input.focus(); }, 20);\n        return\n      }\n      try {\n        var text$1 = e.dataTransfer.getData(\"Text\");\n        if (text$1) {\n          var selected;\n          if (cm.state.draggingText && !cm.state.draggingText.copy)\n            { selected = cm.listSelections(); }\n          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));\n          if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)\n            { replaceRange(cm.doc, \"\", selected[i$1].anchor, selected[i$1].head, \"drag\"); } }\n          cm.replaceSelection(text$1, \"around\", \"paste\");\n          cm.display.input.focus();\n        }\n      }\n      catch(e){}\n    }\n  }\n\n  function onDragStart(cm, e) {\n    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }\n\n    e.dataTransfer.setData(\"Text\", cm.getSelection());\n    e.dataTransfer.effectAllowed = \"copyMove\";\n\n    // Use dummy image instead of default browsers image.\n    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.\n    if (e.dataTransfer.setDragImage && !safari) {\n      var img = elt(\"img\", null, null, \"position: fixed; left: 0; top: 0;\");\n      img.src = \"data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\";\n      if (presto) {\n        img.width = img.height = 1;\n        cm.display.wrapper.appendChild(img);\n        // Force a relayout, or Opera won't use our image for some obscure reason\n        img._top = img.offsetTop;\n      }\n      e.dataTransfer.setDragImage(img, 0, 0);\n      if (presto) { img.parentNode.removeChild(img); }\n    }\n  }\n\n  function onDragOver(cm, e) {\n    var pos = posFromMouse(cm, e);\n    if (!pos) { return }\n    var frag = document.createDocumentFragment();\n    drawSelectionCursor(cm, pos, frag);\n    if (!cm.display.dragCursor) {\n      cm.display.dragCursor = elt(\"div\", null, \"CodeMirror-cursors CodeMirror-dragcursors\");\n      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);\n    }\n    removeChildrenAndAdd(cm.display.dragCursor, frag);\n  }\n\n  function clearDragCursor(cm) {\n    if (cm.display.dragCursor) {\n      cm.display.lineSpace.removeChild(cm.display.dragCursor);\n      cm.display.dragCursor = null;\n    }\n  }\n\n  // These must be handled carefully, because naively registering a\n  // handler for each editor will cause the editors to never be\n  // garbage collected.\n\n  function forEachCodeMirror(f) {\n    if (!document.getElementsByClassName) { return }\n    var byClass = document.getElementsByClassName(\"CodeMirror\"), editors = [];\n    for (var i = 0; i < byClass.length; i++) {\n      var cm = byClass[i].CodeMirror;\n      if (cm) { editors.push(cm); }\n    }\n    if (editors.length) { editors[0].operation(function () {\n      for (var i = 0; i < editors.length; i++) { f(editors[i]); }\n    }); }\n  }\n\n  var globalsRegistered = false;\n  function ensureGlobalHandlers() {\n    if (globalsRegistered) { return }\n    registerGlobalHandlers();\n    globalsRegistered = true;\n  }\n  function registerGlobalHandlers() {\n    // When the window resizes, we need to refresh active editors.\n    var resizeTimer;\n    on(window, \"resize\", function () {\n      if (resizeTimer == null) { resizeTimer = setTimeout(function () {\n        resizeTimer = null;\n        forEachCodeMirror(onResize);\n      }, 100); }\n    });\n    // When the window loses focus, we want to show the editor as blurred\n    on(window, \"blur\", function () { return forEachCodeMirror(onBlur); });\n  }\n  // Called when the window resizes\n  function onResize(cm) {\n    var d = cm.display;\n    // Might be a text scaling operation, clear size caches.\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\n    d.scrollbarsClipped = false;\n    cm.setSize();\n  }\n\n  var keyNames = {\n    3: \"Pause\", 8: \"Backspace\", 9: \"Tab\", 13: \"Enter\", 16: \"Shift\", 17: \"Ctrl\", 18: \"Alt\",\n    19: \"Pause\", 20: \"CapsLock\", 27: \"Esc\", 32: \"Space\", 33: \"PageUp\", 34: \"PageDown\", 35: \"End\",\n    36: \"Home\", 37: \"Left\", 38: \"Up\", 39: \"Right\", 40: \"Down\", 44: \"PrintScrn\", 45: \"Insert\",\n    46: \"Delete\", 59: \";\", 61: \"=\", 91: \"Mod\", 92: \"Mod\", 93: \"Mod\",\n    106: \"*\", 107: \"=\", 109: \"-\", 110: \".\", 111: \"/\", 145: \"ScrollLock\",\n    173: \"-\", 186: \";\", 187: \"=\", 188: \",\", 189: \"-\", 190: \".\", 191: \"/\", 192: \"`\", 219: \"[\", 220: \"\\\\\",\n    221: \"]\", 222: \"'\", 63232: \"Up\", 63233: \"Down\", 63234: \"Left\", 63235: \"Right\", 63272: \"Delete\",\n    63273: \"Home\", 63275: \"End\", 63276: \"PageUp\", 63277: \"PageDown\", 63302: \"Insert\"\n  };\n\n  // Number keys\n  for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }\n  // Alphabetic keys\n  for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }\n  // Function keys\n  for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = \"F\" + i$2; }\n\n  var keyMap = {};\n\n  keyMap.basic = {\n    \"Left\": \"goCharLeft\", \"Right\": \"goCharRight\", \"Up\": \"goLineUp\", \"Down\": \"goLineDown\",\n    \"End\": \"goLineEnd\", \"Home\": \"goLineStartSmart\", \"PageUp\": \"goPageUp\", \"PageDown\": \"goPageDown\",\n    \"Delete\": \"delCharAfter\", \"Backspace\": \"delCharBefore\", \"Shift-Backspace\": \"delCharBefore\",\n    \"Tab\": \"defaultTab\", \"Shift-Tab\": \"indentAuto\",\n    \"Enter\": \"newlineAndIndent\", \"Insert\": \"toggleOverwrite\",\n    \"Esc\": \"singleSelection\"\n  };\n  // Note that the save and find-related commands aren't defined by\n  // default. User code or addons can define them. Unknown commands\n  // are simply ignored.\n  keyMap.pcDefault = {\n    \"Ctrl-A\": \"selectAll\", \"Ctrl-D\": \"deleteLine\", \"Ctrl-Z\": \"undo\", \"Shift-Ctrl-Z\": \"redo\", \"Ctrl-Y\": \"redo\",\n    \"Ctrl-Home\": \"goDocStart\", \"Ctrl-End\": \"goDocEnd\", \"Ctrl-Up\": \"goLineUp\", \"Ctrl-Down\": \"goLineDown\",\n    \"Ctrl-Left\": \"goGroupLeft\", \"Ctrl-Right\": \"goGroupRight\", \"Alt-Left\": \"goLineStart\", \"Alt-Right\": \"goLineEnd\",\n    \"Ctrl-Backspace\": \"delGroupBefore\", \"Ctrl-Delete\": \"delGroupAfter\", \"Ctrl-S\": \"save\", \"Ctrl-F\": \"find\",\n    \"Ctrl-G\": \"findNext\", \"Shift-Ctrl-G\": \"findPrev\", \"Shift-Ctrl-F\": \"replace\", \"Shift-Ctrl-R\": \"replaceAll\",\n    \"Ctrl-[\": \"indentLess\", \"Ctrl-]\": \"indentMore\",\n    \"Ctrl-U\": \"undoSelection\", \"Shift-Ctrl-U\": \"redoSelection\", \"Alt-U\": \"redoSelection\",\n    \"fallthrough\": \"basic\"\n  };\n  // Very basic readline/emacs-style bindings, which are standard on Mac.\n  keyMap.emacsy = {\n    \"Ctrl-F\": \"goCharRight\", \"Ctrl-B\": \"goCharLeft\", \"Ctrl-P\": \"goLineUp\", \"Ctrl-N\": \"goLineDown\",\n    \"Alt-F\": \"goWordRight\", \"Alt-B\": \"goWordLeft\", \"Ctrl-A\": \"goLineStart\", \"Ctrl-E\": \"goLineEnd\",\n    \"Ctrl-V\": \"goPageDown\", \"Shift-Ctrl-V\": \"goPageUp\", \"Ctrl-D\": \"delCharAfter\", \"Ctrl-H\": \"delCharBefore\",\n    \"Alt-D\": \"delWordAfter\", \"Alt-Backspace\": \"delWordBefore\", \"Ctrl-K\": \"killLine\", \"Ctrl-T\": \"transposeChars\",\n    \"Ctrl-O\": \"openLine\"\n  };\n  keyMap.macDefault = {\n    \"Cmd-A\": \"selectAll\", \"Cmd-D\": \"deleteLine\", \"Cmd-Z\": \"undo\", \"Shift-Cmd-Z\": \"redo\", \"Cmd-Y\": \"redo\",\n    \"Cmd-Home\": \"goDocStart\", \"Cmd-Up\": \"goDocStart\", \"Cmd-End\": \"goDocEnd\", \"Cmd-Down\": \"goDocEnd\", \"Alt-Left\": \"goGroupLeft\",\n    \"Alt-Right\": \"goGroupRight\", \"Cmd-Left\": \"goLineLeft\", \"Cmd-Right\": \"goLineRight\", \"Alt-Backspace\": \"delGroupBefore\",\n    \"Ctrl-Alt-Backspace\": \"delGroupAfter\", \"Alt-Delete\": \"delGroupAfter\", \"Cmd-S\": \"save\", \"Cmd-F\": \"find\",\n    \"Cmd-G\": \"findNext\", \"Shift-Cmd-G\": \"findPrev\", \"Cmd-Alt-F\": \"replace\", \"Shift-Cmd-Alt-F\": \"replaceAll\",\n    \"Cmd-[\": \"indentLess\", \"Cmd-]\": \"indentMore\", \"Cmd-Backspace\": \"delWrappedLineLeft\", \"Cmd-Delete\": \"delWrappedLineRight\",\n    \"Cmd-U\": \"undoSelection\", \"Shift-Cmd-U\": \"redoSelection\", \"Ctrl-Up\": \"goDocStart\", \"Ctrl-Down\": \"goDocEnd\",\n    \"fallthrough\": [\"basic\", \"emacsy\"]\n  };\n  keyMap[\"default\"] = mac ? keyMap.macDefault : keyMap.pcDefault;\n\n  // KEYMAP DISPATCH\n\n  function normalizeKeyName(name) {\n    var parts = name.split(/-(?!$)/);\n    name = parts[parts.length - 1];\n    var alt, ctrl, shift, cmd;\n    for (var i = 0; i < parts.length - 1; i++) {\n      var mod = parts[i];\n      if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }\n      else if (/^a(lt)?$/i.test(mod)) { alt = true; }\n      else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }\n      else if (/^s(hift)?$/i.test(mod)) { shift = true; }\n      else { throw new Error(\"Unrecognized modifier name: \" + mod) }\n    }\n    if (alt) { name = \"Alt-\" + name; }\n    if (ctrl) { name = \"Ctrl-\" + name; }\n    if (cmd) { name = \"Cmd-\" + name; }\n    if (shift) { name = \"Shift-\" + name; }\n    return name\n  }\n\n  // This is a kludge to keep keymaps mostly working as raw objects\n  // (backwards compatibility) while at the same time support features\n  // like normalization and multi-stroke key bindings. It compiles a\n  // new normalized keymap, and then updates the old object to reflect\n  // this.\n  function normalizeKeyMap(keymap) {\n    var copy = {};\n    for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {\n      var value = keymap[keyname];\n      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }\n      if (value == \"...\") { delete keymap[keyname]; continue }\n\n      var keys = map(keyname.split(\" \"), normalizeKeyName);\n      for (var i = 0; i < keys.length; i++) {\n        var val = (void 0), name = (void 0);\n        if (i == keys.length - 1) {\n          name = keys.join(\" \");\n          val = value;\n        } else {\n          name = keys.slice(0, i + 1).join(\" \");\n          val = \"...\";\n        }\n        var prev = copy[name];\n        if (!prev) { copy[name] = val; }\n        else if (prev != val) { throw new Error(\"Inconsistent bindings for \" + name) }\n      }\n      delete keymap[keyname];\n    } }\n    for (var prop in copy) { keymap[prop] = copy[prop]; }\n    return keymap\n  }\n\n  function lookupKey(key, map, handle, context) {\n    map = getKeyMap(map);\n    var found = map.call ? map.call(key, context) : map[key];\n    if (found === false) { return \"nothing\" }\n    if (found === \"...\") { return \"multi\" }\n    if (found != null && handle(found)) { return \"handled\" }\n\n    if (map.fallthrough) {\n      if (Object.prototype.toString.call(map.fallthrough) != \"[object Array]\")\n        { return lookupKey(key, map.fallthrough, handle, context) }\n      for (var i = 0; i < map.fallthrough.length; i++) {\n        var result = lookupKey(key, map.fallthrough[i], handle, context);\n        if (result) { return result }\n      }\n    }\n  }\n\n  // Modifier key presses don't count as 'real' key presses for the\n  // purpose of keymap fallthrough.\n  function isModifierKey(value) {\n    var name = typeof value == \"string\" ? value : keyNames[value.keyCode];\n    return name == \"Ctrl\" || name == \"Alt\" || name == \"Shift\" || name == \"Mod\"\n  }\n\n  function addModifierNames(name, event, noShift) {\n    var base = name;\n    if (event.altKey && base != \"Alt\") { name = \"Alt-\" + name; }\n    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != \"Ctrl\") { name = \"Ctrl-\" + name; }\n    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != \"Cmd\") { name = \"Cmd-\" + name; }\n    if (!noShift && event.shiftKey && base != \"Shift\") { name = \"Shift-\" + name; }\n    return name\n  }\n\n  // Look up the name of a key as indicated by an event object.\n  function keyName(event, noShift) {\n    if (presto && event.keyCode == 34 && event[\"char\"]) { return false }\n    var name = keyNames[event.keyCode];\n    if (name == null || event.altGraphKey) { return false }\n    // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,\n    // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)\n    if (event.keyCode == 3 && event.code) { name = event.code; }\n    return addModifierNames(name, event, noShift)\n  }\n\n  function getKeyMap(val) {\n    return typeof val == \"string\" ? keyMap[val] : val\n  }\n\n  // Helper for deleting text near the selection(s), used to implement\n  // backspace, delete, and similar functionality.\n  function deleteNearSelection(cm, compute) {\n    var ranges = cm.doc.sel.ranges, kill = [];\n    // Build up a set of ranges to kill first, merging overlapping\n    // ranges.\n    for (var i = 0; i < ranges.length; i++) {\n      var toKill = compute(ranges[i]);\n      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {\n        var replaced = kill.pop();\n        if (cmp(replaced.from, toKill.from) < 0) {\n          toKill.from = replaced.from;\n          break\n        }\n      }\n      kill.push(toKill);\n    }\n    // Next, remove those actual ranges.\n    runInOp(cm, function () {\n      for (var i = kill.length - 1; i >= 0; i--)\n        { replaceRange(cm.doc, \"\", kill[i].from, kill[i].to, \"+delete\"); }\n      ensureCursorVisible(cm);\n    });\n  }\n\n  function moveCharLogically(line, ch, dir) {\n    var target = skipExtendingChars(line.text, ch + dir, dir);\n    return target < 0 || target > line.text.length ? null : target\n  }\n\n  function moveLogically(line, start, dir) {\n    var ch = moveCharLogically(line, start.ch, dir);\n    return ch == null ? null : new Pos(start.line, ch, dir < 0 ? \"after\" : \"before\")\n  }\n\n  function endOfLine(visually, cm, lineObj, lineNo, dir) {\n    if (visually) {\n      if (cm.doc.direction == \"rtl\") { dir = -dir; }\n      var order = getOrder(lineObj, cm.doc.direction);\n      if (order) {\n        var part = dir < 0 ? lst(order) : order[0];\n        var moveInStorageOrder = (dir < 0) == (part.level == 1);\n        var sticky = moveInStorageOrder ? \"after\" : \"before\";\n        var ch;\n        // With a wrapped rtl chunk (possibly spanning multiple bidi parts),\n        // it could be that the last bidi part is not on the last visual line,\n        // since visual lines contain content order-consecutive chunks.\n        // Thus, in rtl, we are looking for the first (content-order) character\n        // in the rtl chunk that is on the last line (that is, the same line\n        // as the last (content-order) character).\n        if (part.level > 0 || cm.doc.direction == \"rtl\") {\n          var prep = prepareMeasureForLine(cm, lineObj);\n          ch = dir < 0 ? lineObj.text.length - 1 : 0;\n          var targetTop = measureCharPrepared(cm, prep, ch).top;\n          ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);\n          if (sticky == \"before\") { ch = moveCharLogically(lineObj, ch, 1); }\n        } else { ch = dir < 0 ? part.to : part.from; }\n        return new Pos(lineNo, ch, sticky)\n      }\n    }\n    return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? \"before\" : \"after\")\n  }\n\n  function moveVisually(cm, line, start, dir) {\n    var bidi = getOrder(line, cm.doc.direction);\n    if (!bidi) { return moveLogically(line, start, dir) }\n    if (start.ch >= line.text.length) {\n      start.ch = line.text.length;\n      start.sticky = \"before\";\n    } else if (start.ch <= 0) {\n      start.ch = 0;\n      start.sticky = \"after\";\n    }\n    var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];\n    if (cm.doc.direction == \"ltr\" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {\n      // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,\n      // nothing interesting happens.\n      return moveLogically(line, start, dir)\n    }\n\n    var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };\n    var prep;\n    var getWrappedLineExtent = function (ch) {\n      if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }\n      prep = prep || prepareMeasureForLine(cm, line);\n      return wrappedLineExtentChar(cm, line, prep, ch)\n    };\n    var wrappedLineExtent = getWrappedLineExtent(start.sticky == \"before\" ? mv(start, -1) : start.ch);\n\n    if (cm.doc.direction == \"rtl\" || part.level == 1) {\n      var moveInStorageOrder = (part.level == 1) == (dir < 0);\n      var ch = mv(start, moveInStorageOrder ? 1 : -1);\n      if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {\n        // Case 2: We move within an rtl part or in an rtl editor on the same visual line\n        var sticky = moveInStorageOrder ? \"before\" : \"after\";\n        return new Pos(start.line, ch, sticky)\n      }\n    }\n\n    // Case 3: Could not move within this bidi part in this visual line, so leave\n    // the current bidi part\n\n    var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {\n      var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder\n        ? new Pos(start.line, mv(ch, 1), \"before\")\n        : new Pos(start.line, ch, \"after\"); };\n\n      for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {\n        var part = bidi[partPos];\n        var moveInStorageOrder = (dir > 0) == (part.level != 1);\n        var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);\n        if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }\n        ch = moveInStorageOrder ? part.from : mv(part.to, -1);\n        if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }\n      }\n    };\n\n    // Case 3a: Look for other bidi parts on the same visual line\n    var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);\n    if (res) { return res }\n\n    // Case 3b: Look for other bidi parts on the next visual line\n    var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);\n    if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {\n      res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));\n      if (res) { return res }\n    }\n\n    // Case 4: Nowhere to move\n    return null\n  }\n\n  // Commands are parameter-less actions that can be performed on an\n  // editor, mostly used for keybindings.\n  var commands = {\n    selectAll: selectAll,\n    singleSelection: function (cm) { return cm.setSelection(cm.getCursor(\"anchor\"), cm.getCursor(\"head\"), sel_dontScroll); },\n    killLine: function (cm) { return deleteNearSelection(cm, function (range) {\n      if (range.empty()) {\n        var len = getLine(cm.doc, range.head.line).text.length;\n        if (range.head.ch == len && range.head.line < cm.lastLine())\n          { return {from: range.head, to: Pos(range.head.line + 1, 0)} }\n        else\n          { return {from: range.head, to: Pos(range.head.line, len)} }\n      } else {\n        return {from: range.from(), to: range.to()}\n      }\n    }); },\n    deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n      from: Pos(range.from().line, 0),\n      to: clipPos(cm.doc, Pos(range.to().line + 1, 0))\n    }); }); },\n    delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n      from: Pos(range.from().line, 0), to: range.from()\n    }); }); },\n    delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {\n      var top = cm.charCoords(range.head, \"div\").top + 5;\n      var leftPos = cm.coordsChar({left: 0, top: top}, \"div\");\n      return {from: leftPos, to: range.from()}\n    }); },\n    delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {\n      var top = cm.charCoords(range.head, \"div\").top + 5;\n      var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\");\n      return {from: range.from(), to: rightPos }\n    }); },\n    undo: function (cm) { return cm.undo(); },\n    redo: function (cm) { return cm.redo(); },\n    undoSelection: function (cm) { return cm.undoSelection(); },\n    redoSelection: function (cm) { return cm.redoSelection(); },\n    goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },\n    goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },\n    goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },\n      {origin: \"+move\", bias: 1}\n    ); },\n    goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },\n      {origin: \"+move\", bias: 1}\n    ); },\n    goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },\n      {origin: \"+move\", bias: -1}\n    ); },\n    goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\")\n    }, sel_move); },\n    goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      return cm.coordsChar({left: 0, top: top}, \"div\")\n    }, sel_move); },\n    goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {\n      var top = cm.cursorCoords(range.head, \"div\").top + 5;\n      var pos = cm.coordsChar({left: 0, top: top}, \"div\");\n      if (pos.ch < cm.getLine(pos.line).search(/\\S/)) { return lineStartSmart(cm, range.head) }\n      return pos\n    }, sel_move); },\n    goLineUp: function (cm) { return cm.moveV(-1, \"line\"); },\n    goLineDown: function (cm) { return cm.moveV(1, \"line\"); },\n    goPageUp: function (cm) { return cm.moveV(-1, \"page\"); },\n    goPageDown: function (cm) { return cm.moveV(1, \"page\"); },\n    goCharLeft: function (cm) { return cm.moveH(-1, \"char\"); },\n    goCharRight: function (cm) { return cm.moveH(1, \"char\"); },\n    goColumnLeft: function (cm) { return cm.moveH(-1, \"column\"); },\n    goColumnRight: function (cm) { return cm.moveH(1, \"column\"); },\n    goWordLeft: function (cm) { return cm.moveH(-1, \"word\"); },\n    goGroupRight: function (cm) { return cm.moveH(1, \"group\"); },\n    goGroupLeft: function (cm) { return cm.moveH(-1, \"group\"); },\n    goWordRight: function (cm) { return cm.moveH(1, \"word\"); },\n    delCharBefore: function (cm) { return cm.deleteH(-1, \"char\"); },\n    delCharAfter: function (cm) { return cm.deleteH(1, \"char\"); },\n    delWordBefore: function (cm) { return cm.deleteH(-1, \"word\"); },\n    delWordAfter: function (cm) { return cm.deleteH(1, \"word\"); },\n    delGroupBefore: function (cm) { return cm.deleteH(-1, \"group\"); },\n    delGroupAfter: function (cm) { return cm.deleteH(1, \"group\"); },\n    indentAuto: function (cm) { return cm.indentSelection(\"smart\"); },\n    indentMore: function (cm) { return cm.indentSelection(\"add\"); },\n    indentLess: function (cm) { return cm.indentSelection(\"subtract\"); },\n    insertTab: function (cm) { return cm.replaceSelection(\"\\t\"); },\n    insertSoftTab: function (cm) {\n      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;\n      for (var i = 0; i < ranges.length; i++) {\n        var pos = ranges[i].from();\n        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);\n        spaces.push(spaceStr(tabSize - col % tabSize));\n      }\n      cm.replaceSelections(spaces);\n    },\n    defaultTab: function (cm) {\n      if (cm.somethingSelected()) { cm.indentSelection(\"add\"); }\n      else { cm.execCommand(\"insertTab\"); }\n    },\n    // Swap the two chars left and right of each selection's head.\n    // Move cursor behind the two swapped characters afterwards.\n    //\n    // Doesn't consider line feeds a character.\n    // Doesn't scan more than one line above to find a character.\n    // Doesn't do anything on an empty line.\n    // Doesn't do anything with non-empty selections.\n    transposeChars: function (cm) { return runInOp(cm, function () {\n      var ranges = cm.listSelections(), newSel = [];\n      for (var i = 0; i < ranges.length; i++) {\n        if (!ranges[i].empty()) { continue }\n        var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;\n        if (line) {\n          if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }\n          if (cur.ch > 0) {\n            cur = new Pos(cur.line, cur.ch + 1);\n            cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),\n                            Pos(cur.line, cur.ch - 2), cur, \"+transpose\");\n          } else if (cur.line > cm.doc.first) {\n            var prev = getLine(cm.doc, cur.line - 1).text;\n            if (prev) {\n              cur = new Pos(cur.line, 1);\n              cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +\n                              prev.charAt(prev.length - 1),\n                              Pos(cur.line - 1, prev.length - 1), cur, \"+transpose\");\n            }\n          }\n        }\n        newSel.push(new Range(cur, cur));\n      }\n      cm.setSelections(newSel);\n    }); },\n    newlineAndIndent: function (cm) { return runInOp(cm, function () {\n      var sels = cm.listSelections();\n      for (var i = sels.length - 1; i >= 0; i--)\n        { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, \"+input\"); }\n      sels = cm.listSelections();\n      for (var i$1 = 0; i$1 < sels.length; i$1++)\n        { cm.indentLine(sels[i$1].from().line, null, true); }\n      ensureCursorVisible(cm);\n    }); },\n    openLine: function (cm) { return cm.replaceSelection(\"\\n\", \"start\"); },\n    toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }\n  };\n\n\n  function lineStart(cm, lineN) {\n    var line = getLine(cm.doc, lineN);\n    var visual = visualLine(line);\n    if (visual != line) { lineN = lineNo(visual); }\n    return endOfLine(true, cm, visual, lineN, 1)\n  }\n  function lineEnd(cm, lineN) {\n    var line = getLine(cm.doc, lineN);\n    var visual = visualLineEnd(line);\n    if (visual != line) { lineN = lineNo(visual); }\n    return endOfLine(true, cm, line, lineN, -1)\n  }\n  function lineStartSmart(cm, pos) {\n    var start = lineStart(cm, pos.line);\n    var line = getLine(cm.doc, start.line);\n    var order = getOrder(line, cm.doc.direction);\n    if (!order || order[0].level == 0) {\n      var firstNonWS = Math.max(start.ch, line.text.search(/\\S/));\n      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;\n      return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)\n    }\n    return start\n  }\n\n  // Run a handler that was bound to a key.\n  function doHandleBinding(cm, bound, dropShift) {\n    if (typeof bound == \"string\") {\n      bound = commands[bound];\n      if (!bound) { return false }\n    }\n    // Ensure previous input has been read, so that the handler sees a\n    // consistent view of the document\n    cm.display.input.ensurePolled();\n    var prevShift = cm.display.shift, done = false;\n    try {\n      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }\n      if (dropShift) { cm.display.shift = false; }\n      done = bound(cm) != Pass;\n    } finally {\n      cm.display.shift = prevShift;\n      cm.state.suppressEdits = false;\n    }\n    return done\n  }\n\n  function lookupKeyForEditor(cm, name, handle) {\n    for (var i = 0; i < cm.state.keyMaps.length; i++) {\n      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);\n      if (result) { return result }\n    }\n    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))\n      || lookupKey(name, cm.options.keyMap, handle, cm)\n  }\n\n  // Note that, despite the name, this function is also used to check\n  // for bound mouse clicks.\n\n  var stopSeq = new Delayed;\n\n  function dispatchKey(cm, name, e, handle) {\n    var seq = cm.state.keySeq;\n    if (seq) {\n      if (isModifierKey(name)) { return \"handled\" }\n      if (/\\'$/.test(name))\n        { cm.state.keySeq = null; }\n      else\n        { stopSeq.set(50, function () {\n          if (cm.state.keySeq == seq) {\n            cm.state.keySeq = null;\n            cm.display.input.reset();\n          }\n        }); }\n      if (dispatchKeyInner(cm, seq + \" \" + name, e, handle)) { return true }\n    }\n    return dispatchKeyInner(cm, name, e, handle)\n  }\n\n  function dispatchKeyInner(cm, name, e, handle) {\n    var result = lookupKeyForEditor(cm, name, handle);\n\n    if (result == \"multi\")\n      { cm.state.keySeq = name; }\n    if (result == \"handled\")\n      { signalLater(cm, \"keyHandled\", cm, name, e); }\n\n    if (result == \"handled\" || result == \"multi\") {\n      e_preventDefault(e);\n      restartBlink(cm);\n    }\n\n    return !!result\n  }\n\n  // Handle a key from the keydown event.\n  function handleKeyBinding(cm, e) {\n    var name = keyName(e, true);\n    if (!name) { return false }\n\n    if (e.shiftKey && !cm.state.keySeq) {\n      // First try to resolve full name (including 'Shift-'). Failing\n      // that, see if there is a cursor-motion command (starting with\n      // 'go') bound to the keyname without 'Shift-'.\n      return dispatchKey(cm, \"Shift-\" + name, e, function (b) { return doHandleBinding(cm, b, true); })\n          || dispatchKey(cm, name, e, function (b) {\n               if (typeof b == \"string\" ? /^go[A-Z]/.test(b) : b.motion)\n                 { return doHandleBinding(cm, b) }\n             })\n    } else {\n      return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })\n    }\n  }\n\n  // Handle a key from the keypress event\n  function handleCharBinding(cm, e, ch) {\n    return dispatchKey(cm, \"'\" + ch + \"'\", e, function (b) { return doHandleBinding(cm, b, true); })\n  }\n\n  var lastStoppedKey = null;\n  function onKeyDown(e) {\n    var cm = this;\n    cm.curOp.focus = activeElt();\n    if (signalDOMEvent(cm, e)) { return }\n    // IE does strange things with escape.\n    if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }\n    var code = e.keyCode;\n    cm.display.shift = code == 16 || e.shiftKey;\n    var handled = handleKeyBinding(cm, e);\n    if (presto) {\n      lastStoppedKey = handled ? code : null;\n      // Opera has no cut event... we try to at least catch the key combo\n      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))\n        { cm.replaceSelection(\"\", null, \"cut\"); }\n    }\n    if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)\n      { document.execCommand(\"cut\"); }\n\n    // Turn mouse into crosshair when Alt is held on Mac.\n    if (code == 18 && !/\\bCodeMirror-crosshair\\b/.test(cm.display.lineDiv.className))\n      { showCrossHair(cm); }\n  }\n\n  function showCrossHair(cm) {\n    var lineDiv = cm.display.lineDiv;\n    addClass(lineDiv, \"CodeMirror-crosshair\");\n\n    function up(e) {\n      if (e.keyCode == 18 || !e.altKey) {\n        rmClass(lineDiv, \"CodeMirror-crosshair\");\n        off(document, \"keyup\", up);\n        off(document, \"mouseover\", up);\n      }\n    }\n    on(document, \"keyup\", up);\n    on(document, \"mouseover\", up);\n  }\n\n  function onKeyUp(e) {\n    if (e.keyCode == 16) { this.doc.sel.shift = false; }\n    signalDOMEvent(this, e);\n  }\n\n  function onKeyPress(e) {\n    var cm = this;\n    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }\n    var keyCode = e.keyCode, charCode = e.charCode;\n    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}\n    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }\n    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);\n    // Some browsers fire keypress events for backspace\n    if (ch == \"\\x08\") { return }\n    if (handleCharBinding(cm, e, ch)) { return }\n    cm.display.input.onKeyPress(e);\n  }\n\n  var DOUBLECLICK_DELAY = 400;\n\n  var PastClick = function(time, pos, button) {\n    this.time = time;\n    this.pos = pos;\n    this.button = button;\n  };\n\n  PastClick.prototype.compare = function (time, pos, button) {\n    return this.time + DOUBLECLICK_DELAY > time &&\n      cmp(pos, this.pos) == 0 && button == this.button\n  };\n\n  var lastClick, lastDoubleClick;\n  function clickRepeat(pos, button) {\n    var now = +new Date;\n    if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {\n      lastClick = lastDoubleClick = null;\n      return \"triple\"\n    } else if (lastClick && lastClick.compare(now, pos, button)) {\n      lastDoubleClick = new PastClick(now, pos, button);\n      lastClick = null;\n      return \"double\"\n    } else {\n      lastClick = new PastClick(now, pos, button);\n      lastDoubleClick = null;\n      return \"single\"\n    }\n  }\n\n  // A mouse down can be a single click, double click, triple click,\n  // start of selection drag, start of text drag, new cursor\n  // (ctrl-click), rectangle drag (alt-drag), or xwin\n  // middle-click-paste. Or it might be a click on something we should\n  // not interfere with, such as a scrollbar or widget.\n  function onMouseDown(e) {\n    var cm = this, display = cm.display;\n    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }\n    display.input.ensurePolled();\n    display.shift = e.shiftKey;\n\n    if (eventInWidget(display, e)) {\n      if (!webkit) {\n        // Briefly turn off draggability, to allow widgets to do\n        // normal dragging things.\n        display.scroller.draggable = false;\n        setTimeout(function () { return display.scroller.draggable = true; }, 100);\n      }\n      return\n    }\n    if (clickInGutter(cm, e)) { return }\n    var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : \"single\";\n    window.focus();\n\n    // #3261: make sure, that we're not starting a second selection\n    if (button == 1 && cm.state.selectingText)\n      { cm.state.selectingText(e); }\n\n    if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }\n\n    if (button == 1) {\n      if (pos) { leftButtonDown(cm, pos, repeat, e); }\n      else if (e_target(e) == display.scroller) { e_preventDefault(e); }\n    } else if (button == 2) {\n      if (pos) { extendSelection(cm.doc, pos); }\n      setTimeout(function () { return display.input.focus(); }, 20);\n    } else if (button == 3) {\n      if (captureRightClick) { cm.display.input.onContextMenu(e); }\n      else { delayBlurEvent(cm); }\n    }\n  }\n\n  function handleMappedButton(cm, button, pos, repeat, event) {\n    var name = \"Click\";\n    if (repeat == \"double\") { name = \"Double\" + name; }\n    else if (repeat == \"triple\") { name = \"Triple\" + name; }\n    name = (button == 1 ? \"Left\" : button == 2 ? \"Middle\" : \"Right\") + name;\n\n    return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {\n      if (typeof bound == \"string\") { bound = commands[bound]; }\n      if (!bound) { return false }\n      var done = false;\n      try {\n        if (cm.isReadOnly()) { cm.state.suppressEdits = true; }\n        done = bound(cm, pos) != Pass;\n      } finally {\n        cm.state.suppressEdits = false;\n      }\n      return done\n    })\n  }\n\n  function configureMouse(cm, repeat, event) {\n    var option = cm.getOption(\"configureMouse\");\n    var value = option ? option(cm, repeat, event) : {};\n    if (value.unit == null) {\n      var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;\n      value.unit = rect ? \"rectangle\" : repeat == \"single\" ? \"char\" : repeat == \"double\" ? \"word\" : \"line\";\n    }\n    if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }\n    if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }\n    if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }\n    return value\n  }\n\n  function leftButtonDown(cm, pos, repeat, event) {\n    if (ie) { setTimeout(bind(ensureFocus, cm), 0); }\n    else { cm.curOp.focus = activeElt(); }\n\n    var behavior = configureMouse(cm, repeat, event);\n\n    var sel = cm.doc.sel, contained;\n    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&\n        repeat == \"single\" && (contained = sel.contains(pos)) > -1 &&\n        (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&\n        (cmp(contained.to(), pos) > 0 || pos.xRel < 0))\n      { leftButtonStartDrag(cm, event, pos, behavior); }\n    else\n      { leftButtonSelect(cm, event, pos, behavior); }\n  }\n\n  // Start a text drag. When it ends, see if any dragging actually\n  // happen, and treat as a click if it didn't.\n  function leftButtonStartDrag(cm, event, pos, behavior) {\n    var display = cm.display, moved = false;\n    var dragEnd = operation(cm, function (e) {\n      if (webkit) { display.scroller.draggable = false; }\n      cm.state.draggingText = false;\n      off(display.wrapper.ownerDocument, \"mouseup\", dragEnd);\n      off(display.wrapper.ownerDocument, \"mousemove\", mouseMove);\n      off(display.scroller, \"dragstart\", dragStart);\n      off(display.scroller, \"drop\", dragEnd);\n      if (!moved) {\n        e_preventDefault(e);\n        if (!behavior.addNew)\n          { extendSelection(cm.doc, pos, null, null, behavior.extend); }\n        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)\n        if (webkit || ie && ie_version == 9)\n          { setTimeout(function () {display.wrapper.ownerDocument.body.focus(); display.input.focus();}, 20); }\n        else\n          { display.input.focus(); }\n      }\n    });\n    var mouseMove = function(e2) {\n      moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;\n    };\n    var dragStart = function () { return moved = true; };\n    // Let the drag handler handle this.\n    if (webkit) { display.scroller.draggable = true; }\n    cm.state.draggingText = dragEnd;\n    dragEnd.copy = !behavior.moveOnDrag;\n    // IE's approach to draggable\n    if (display.scroller.dragDrop) { display.scroller.dragDrop(); }\n    on(display.wrapper.ownerDocument, \"mouseup\", dragEnd);\n    on(display.wrapper.ownerDocument, \"mousemove\", mouseMove);\n    on(display.scroller, \"dragstart\", dragStart);\n    on(display.scroller, \"drop\", dragEnd);\n\n    delayBlurEvent(cm);\n    setTimeout(function () { return display.input.focus(); }, 20);\n  }\n\n  function rangeForUnit(cm, pos, unit) {\n    if (unit == \"char\") { return new Range(pos, pos) }\n    if (unit == \"word\") { return cm.findWordAt(pos) }\n    if (unit == \"line\") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }\n    var result = unit(cm, pos);\n    return new Range(result.from, result.to)\n  }\n\n  // Normal selection, as opposed to text dragging.\n  function leftButtonSelect(cm, event, start, behavior) {\n    var display = cm.display, doc = cm.doc;\n    e_preventDefault(event);\n\n    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;\n    if (behavior.addNew && !behavior.extend) {\n      ourIndex = doc.sel.contains(start);\n      if (ourIndex > -1)\n        { ourRange = ranges[ourIndex]; }\n      else\n        { ourRange = new Range(start, start); }\n    } else {\n      ourRange = doc.sel.primary();\n      ourIndex = doc.sel.primIndex;\n    }\n\n    if (behavior.unit == \"rectangle\") {\n      if (!behavior.addNew) { ourRange = new Range(start, start); }\n      start = posFromMouse(cm, event, true, true);\n      ourIndex = -1;\n    } else {\n      var range = rangeForUnit(cm, start, behavior.unit);\n      if (behavior.extend)\n        { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }\n      else\n        { ourRange = range; }\n    }\n\n    if (!behavior.addNew) {\n      ourIndex = 0;\n      setSelection(doc, new Selection([ourRange], 0), sel_mouse);\n      startSel = doc.sel;\n    } else if (ourIndex == -1) {\n      ourIndex = ranges.length;\n      setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),\n                   {scroll: false, origin: \"*mouse\"});\n    } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == \"char\" && !behavior.extend) {\n      setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),\n                   {scroll: false, origin: \"*mouse\"});\n      startSel = doc.sel;\n    } else {\n      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);\n    }\n\n    var lastPos = start;\n    function extendTo(pos) {\n      if (cmp(lastPos, pos) == 0) { return }\n      lastPos = pos;\n\n      if (behavior.unit == \"rectangle\") {\n        var ranges = [], tabSize = cm.options.tabSize;\n        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);\n        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);\n        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);\n        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));\n             line <= end; line++) {\n          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);\n          if (left == right)\n            { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }\n          else if (text.length > leftPos)\n            { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }\n        }\n        if (!ranges.length) { ranges.push(new Range(start, start)); }\n        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),\n                     {origin: \"*mouse\", scroll: false});\n        cm.scrollIntoView(pos);\n      } else {\n        var oldRange = ourRange;\n        var range = rangeForUnit(cm, pos, behavior.unit);\n        var anchor = oldRange.anchor, head;\n        if (cmp(range.anchor, anchor) > 0) {\n          head = range.head;\n          anchor = minPos(oldRange.from(), range.anchor);\n        } else {\n          head = range.anchor;\n          anchor = maxPos(oldRange.to(), range.head);\n        }\n        var ranges$1 = startSel.ranges.slice(0);\n        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));\n        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);\n      }\n    }\n\n    var editorSize = display.wrapper.getBoundingClientRect();\n    // Used to ensure timeout re-tries don't fire when another extend\n    // happened in the meantime (clearTimeout isn't reliable -- at\n    // least on Chrome, the timeouts still happen even when cleared,\n    // if the clear happens after their scheduled firing time).\n    var counter = 0;\n\n    function extend(e) {\n      var curCount = ++counter;\n      var cur = posFromMouse(cm, e, true, behavior.unit == \"rectangle\");\n      if (!cur) { return }\n      if (cmp(cur, lastPos) != 0) {\n        cm.curOp.focus = activeElt();\n        extendTo(cur);\n        var visible = visibleLines(display, doc);\n        if (cur.line >= visible.to || cur.line < visible.from)\n          { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }\n      } else {\n        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;\n        if (outside) { setTimeout(operation(cm, function () {\n          if (counter != curCount) { return }\n          display.scroller.scrollTop += outside;\n          extend(e);\n        }), 50); }\n      }\n    }\n\n    function done(e) {\n      cm.state.selectingText = false;\n      counter = Infinity;\n      // If e is null or undefined we interpret this as someone trying\n      // to explicitly cancel the selection rather than the user\n      // letting go of the mouse button.\n      if (e) {\n        e_preventDefault(e);\n        display.input.focus();\n      }\n      off(display.wrapper.ownerDocument, \"mousemove\", move);\n      off(display.wrapper.ownerDocument, \"mouseup\", up);\n      doc.history.lastSelOrigin = null;\n    }\n\n    var move = operation(cm, function (e) {\n      if (e.buttons === 0 || !e_button(e)) { done(e); }\n      else { extend(e); }\n    });\n    var up = operation(cm, done);\n    cm.state.selectingText = up;\n    on(display.wrapper.ownerDocument, \"mousemove\", move);\n    on(display.wrapper.ownerDocument, \"mouseup\", up);\n  }\n\n  // Used when mouse-selecting to adjust the anchor to the proper side\n  // of a bidi jump depending on the visual position of the head.\n  function bidiSimplify(cm, range) {\n    var anchor = range.anchor;\n    var head = range.head;\n    var anchorLine = getLine(cm.doc, anchor.line);\n    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }\n    var order = getOrder(anchorLine);\n    if (!order) { return range }\n    var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];\n    if (part.from != anchor.ch && part.to != anchor.ch) { return range }\n    var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);\n    if (boundary == 0 || boundary == order.length) { return range }\n\n    // Compute the relative visual position of the head compared to the\n    // anchor (<0 is to the left, >0 to the right)\n    var leftSide;\n    if (head.line != anchor.line) {\n      leftSide = (head.line - anchor.line) * (cm.doc.direction == \"ltr\" ? 1 : -1) > 0;\n    } else {\n      var headIndex = getBidiPartAt(order, head.ch, head.sticky);\n      var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);\n      if (headIndex == boundary - 1 || headIndex == boundary)\n        { leftSide = dir < 0; }\n      else\n        { leftSide = dir > 0; }\n    }\n\n    var usePart = order[boundary + (leftSide ? -1 : 0)];\n    var from = leftSide == (usePart.level == 1);\n    var ch = from ? usePart.from : usePart.to, sticky = from ? \"after\" : \"before\";\n    return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)\n  }\n\n\n  // Determines whether an event happened in the gutter, and fires the\n  // handlers for the corresponding event.\n  function gutterEvent(cm, e, type, prevent) {\n    var mX, mY;\n    if (e.touches) {\n      mX = e.touches[0].clientX;\n      mY = e.touches[0].clientY;\n    } else {\n      try { mX = e.clientX; mY = e.clientY; }\n      catch(e) { return false }\n    }\n    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }\n    if (prevent) { e_preventDefault(e); }\n\n    var display = cm.display;\n    var lineBox = display.lineDiv.getBoundingClientRect();\n\n    if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }\n    mY -= lineBox.top - display.viewOffset;\n\n    for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {\n      var g = display.gutters.childNodes[i];\n      if (g && g.getBoundingClientRect().right >= mX) {\n        var line = lineAtHeight(cm.doc, mY);\n        var gutter = cm.display.gutterSpecs[i];\n        signal(cm, type, cm, line, gutter.className, e);\n        return e_defaultPrevented(e)\n      }\n    }\n  }\n\n  function clickInGutter(cm, e) {\n    return gutterEvent(cm, e, \"gutterClick\", true)\n  }\n\n  // CONTEXT MENU HANDLING\n\n  // To make the context menu work, we need to briefly unhide the\n  // textarea (making it as unobtrusive as possible) to let the\n  // right-click take effect on it.\n  function onContextMenu(cm, e) {\n    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }\n    if (signalDOMEvent(cm, e, \"contextmenu\")) { return }\n    if (!captureRightClick) { cm.display.input.onContextMenu(e); }\n  }\n\n  function contextMenuInGutter(cm, e) {\n    if (!hasHandler(cm, \"gutterContextMenu\")) { return false }\n    return gutterEvent(cm, e, \"gutterContextMenu\", false)\n  }\n\n  function themeChanged(cm) {\n    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\\s*cm-s-\\S+/g, \"\") +\n      cm.options.theme.replace(/(^|\\s)\\s*/g, \" cm-s-\");\n    clearCaches(cm);\n  }\n\n  var Init = {toString: function(){return \"CodeMirror.Init\"}};\n\n  var defaults = {};\n  var optionHandlers = {};\n\n  function defineOptions(CodeMirror) {\n    var optionHandlers = CodeMirror.optionHandlers;\n\n    function option(name, deflt, handle, notOnInit) {\n      CodeMirror.defaults[name] = deflt;\n      if (handle) { optionHandlers[name] =\n        notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }\n    }\n\n    CodeMirror.defineOption = option;\n\n    // Passed to option handlers when there is no old value.\n    CodeMirror.Init = Init;\n\n    // These two are, on init, called from the constructor because they\n    // have to be initialized before the editor can start at all.\n    option(\"value\", \"\", function (cm, val) { return cm.setValue(val); }, true);\n    option(\"mode\", null, function (cm, val) {\n      cm.doc.modeOption = val;\n      loadMode(cm);\n    }, true);\n\n    option(\"indentUnit\", 2, loadMode, true);\n    option(\"indentWithTabs\", false);\n    option(\"smartIndent\", true);\n    option(\"tabSize\", 4, function (cm) {\n      resetModeState(cm);\n      clearCaches(cm);\n      regChange(cm);\n    }, true);\n\n    option(\"lineSeparator\", null, function (cm, val) {\n      cm.doc.lineSep = val;\n      if (!val) { return }\n      var newBreaks = [], lineNo = cm.doc.first;\n      cm.doc.iter(function (line) {\n        for (var pos = 0;;) {\n          var found = line.text.indexOf(val, pos);\n          if (found == -1) { break }\n          pos = found + val.length;\n          newBreaks.push(Pos(lineNo, found));\n        }\n        lineNo++;\n      });\n      for (var i = newBreaks.length - 1; i >= 0; i--)\n        { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }\n    });\n    option(\"specialChars\", /[\\u0000-\\u001f\\u007f-\\u009f\\u00ad\\u061c\\u200b-\\u200f\\u2028\\u2029\\ufeff\\ufff9-\\ufffc]/g, function (cm, val, old) {\n      cm.state.specialChars = new RegExp(val.source + (val.test(\"\\t\") ? \"\" : \"|\\t\"), \"g\");\n      if (old != Init) { cm.refresh(); }\n    });\n    option(\"specialCharPlaceholder\", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);\n    option(\"electricChars\", true);\n    option(\"inputStyle\", mobile ? \"contenteditable\" : \"textarea\", function () {\n      throw new Error(\"inputStyle can not (yet) be changed in a running editor\") // FIXME\n    }, true);\n    option(\"spellcheck\", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);\n    option(\"autocorrect\", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);\n    option(\"autocapitalize\", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);\n    option(\"rtlMoveVisually\", !windows);\n    option(\"wholeLineUpdateBefore\", true);\n\n    option(\"theme\", \"default\", function (cm) {\n      themeChanged(cm);\n      updateGutters(cm);\n    }, true);\n    option(\"keyMap\", \"default\", function (cm, val, old) {\n      var next = getKeyMap(val);\n      var prev = old != Init && getKeyMap(old);\n      if (prev && prev.detach) { prev.detach(cm, next); }\n      if (next.attach) { next.attach(cm, prev || null); }\n    });\n    option(\"extraKeys\", null);\n    option(\"configureMouse\", null);\n\n    option(\"lineWrapping\", false, wrappingChanged, true);\n    option(\"gutters\", [], function (cm, val) {\n      cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);\n      updateGutters(cm);\n    }, true);\n    option(\"fixedGutter\", true, function (cm, val) {\n      cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + \"px\" : \"0\";\n      cm.refresh();\n    }, true);\n    option(\"coverGutterNextToScrollbar\", false, function (cm) { return updateScrollbars(cm); }, true);\n    option(\"scrollbarStyle\", \"native\", function (cm) {\n      initScrollbars(cm);\n      updateScrollbars(cm);\n      cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);\n      cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);\n    }, true);\n    option(\"lineNumbers\", false, function (cm, val) {\n      cm.display.gutterSpecs = getGutters(cm.options.gutters, val);\n      updateGutters(cm);\n    }, true);\n    option(\"firstLineNumber\", 1, updateGutters, true);\n    option(\"lineNumberFormatter\", function (integer) { return integer; }, updateGutters, true);\n    option(\"showCursorWhenSelecting\", false, updateSelection, true);\n\n    option(\"resetSelectionOnContextMenu\", true);\n    option(\"lineWiseCopyCut\", true);\n    option(\"pasteLinesPerSelection\", true);\n    option(\"selectionsMayTouch\", false);\n\n    option(\"readOnly\", false, function (cm, val) {\n      if (val == \"nocursor\") {\n        onBlur(cm);\n        cm.display.input.blur();\n      }\n      cm.display.input.readOnlyChanged(val);\n    });\n    option(\"disableInput\", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);\n    option(\"dragDrop\", true, dragDropChanged);\n    option(\"allowDropFileTypes\", null);\n\n    option(\"cursorBlinkRate\", 530);\n    option(\"cursorScrollMargin\", 0);\n    option(\"cursorHeight\", 1, updateSelection, true);\n    option(\"singleCursorHeightPerLine\", true, updateSelection, true);\n    option(\"workTime\", 100);\n    option(\"workDelay\", 100);\n    option(\"flattenSpans\", true, resetModeState, true);\n    option(\"addModeClass\", false, resetModeState, true);\n    option(\"pollInterval\", 100);\n    option(\"undoDepth\", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });\n    option(\"historyEventDelay\", 1250);\n    option(\"viewportMargin\", 10, function (cm) { return cm.refresh(); }, true);\n    option(\"maxHighlightLength\", 10000, resetModeState, true);\n    option(\"moveInputWithCursor\", true, function (cm, val) {\n      if (!val) { cm.display.input.resetPosition(); }\n    });\n\n    option(\"tabindex\", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || \"\"; });\n    option(\"autofocus\", null);\n    option(\"direction\", \"ltr\", function (cm, val) { return cm.doc.setDirection(val); }, true);\n    option(\"phrases\", null);\n  }\n\n  function dragDropChanged(cm, value, old) {\n    var wasOn = old && old != Init;\n    if (!value != !wasOn) {\n      var funcs = cm.display.dragFunctions;\n      var toggle = value ? on : off;\n      toggle(cm.display.scroller, \"dragstart\", funcs.start);\n      toggle(cm.display.scroller, \"dragenter\", funcs.enter);\n      toggle(cm.display.scroller, \"dragover\", funcs.over);\n      toggle(cm.display.scroller, \"dragleave\", funcs.leave);\n      toggle(cm.display.scroller, \"drop\", funcs.drop);\n    }\n  }\n\n  function wrappingChanged(cm) {\n    if (cm.options.lineWrapping) {\n      addClass(cm.display.wrapper, \"CodeMirror-wrap\");\n      cm.display.sizer.style.minWidth = \"\";\n      cm.display.sizerWidth = null;\n    } else {\n      rmClass(cm.display.wrapper, \"CodeMirror-wrap\");\n      findMaxLine(cm);\n    }\n    estimateLineHeights(cm);\n    regChange(cm);\n    clearCaches(cm);\n    setTimeout(function () { return updateScrollbars(cm); }, 100);\n  }\n\n  // A CodeMirror instance represents an editor. This is the object\n  // that user code is usually dealing with.\n\n  function CodeMirror(place, options) {\n    var this$1 = this;\n\n    if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }\n\n    this.options = options = options ? copyObj(options) : {};\n    // Determine effective options based on given values and defaults.\n    copyObj(defaults, options, false);\n\n    var doc = options.value;\n    if (typeof doc == \"string\") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }\n    else if (options.mode) { doc.modeOption = options.mode; }\n    this.doc = doc;\n\n    var input = new CodeMirror.inputStyles[options.inputStyle](this);\n    var display = this.display = new Display(place, doc, input, options);\n    display.wrapper.CodeMirror = this;\n    themeChanged(this);\n    if (options.lineWrapping)\n      { this.display.wrapper.className += \" CodeMirror-wrap\"; }\n    initScrollbars(this);\n\n    this.state = {\n      keyMaps: [],  // stores maps added by addKeyMap\n      overlays: [], // highlighting overlays, as added by addOverlay\n      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info\n      overwrite: false,\n      delayingBlurEvent: false,\n      focused: false,\n      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode\n      pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll\n      selectingText: false,\n      draggingText: false,\n      highlight: new Delayed(), // stores highlight worker timeout\n      keySeq: null,  // Unfinished key sequence\n      specialChars: null\n    };\n\n    if (options.autofocus && !mobile) { display.input.focus(); }\n\n    // Override magic textarea content restore that IE sometimes does\n    // on our hidden textarea on reload\n    if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }\n\n    registerEventHandlers(this);\n    ensureGlobalHandlers();\n\n    startOperation(this);\n    this.curOp.forceUpdate = true;\n    attachDoc(this, doc);\n\n    if ((options.autofocus && !mobile) || this.hasFocus())\n      { setTimeout(bind(onFocus, this), 20); }\n    else\n      { onBlur(this); }\n\n    for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))\n      { optionHandlers[opt](this, options[opt], Init); } }\n    maybeUpdateLineNumberWidth(this);\n    if (options.finishInit) { options.finishInit(this); }\n    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }\n    endOperation(this);\n    // Suppress optimizelegibility in Webkit, since it breaks text\n    // measuring on line wrapping boundaries.\n    if (webkit && options.lineWrapping &&\n        getComputedStyle(display.lineDiv).textRendering == \"optimizelegibility\")\n      { display.lineDiv.style.textRendering = \"auto\"; }\n  }\n\n  // The default configuration options.\n  CodeMirror.defaults = defaults;\n  // Functions to run when options are changed.\n  CodeMirror.optionHandlers = optionHandlers;\n\n  // Attach the necessary event handlers when initializing the editor\n  function registerEventHandlers(cm) {\n    var d = cm.display;\n    on(d.scroller, \"mousedown\", operation(cm, onMouseDown));\n    // Older IE's will not fire a second mousedown for a double click\n    if (ie && ie_version < 11)\n      { on(d.scroller, \"dblclick\", operation(cm, function (e) {\n        if (signalDOMEvent(cm, e)) { return }\n        var pos = posFromMouse(cm, e);\n        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }\n        e_preventDefault(e);\n        var word = cm.findWordAt(pos);\n        extendSelection(cm.doc, word.anchor, word.head);\n      })); }\n    else\n      { on(d.scroller, \"dblclick\", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }\n    // Some browsers fire contextmenu *after* opening the menu, at\n    // which point we can't mess with it anymore. Context menu is\n    // handled in onMouseDown for these browsers.\n    on(d.scroller, \"contextmenu\", function (e) { return onContextMenu(cm, e); });\n    on(d.input.getField(), \"contextmenu\", function (e) {\n      if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }\n    });\n\n    // Used to suppress mouse event handling when a touch happens\n    var touchFinished, prevTouch = {end: 0};\n    function finishTouch() {\n      if (d.activeTouch) {\n        touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);\n        prevTouch = d.activeTouch;\n        prevTouch.end = +new Date;\n      }\n    }\n    function isMouseLikeTouchEvent(e) {\n      if (e.touches.length != 1) { return false }\n      var touch = e.touches[0];\n      return touch.radiusX <= 1 && touch.radiusY <= 1\n    }\n    function farAway(touch, other) {\n      if (other.left == null) { return true }\n      var dx = other.left - touch.left, dy = other.top - touch.top;\n      return dx * dx + dy * dy > 20 * 20\n    }\n    on(d.scroller, \"touchstart\", function (e) {\n      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {\n        d.input.ensurePolled();\n        clearTimeout(touchFinished);\n        var now = +new Date;\n        d.activeTouch = {start: now, moved: false,\n                         prev: now - prevTouch.end <= 300 ? prevTouch : null};\n        if (e.touches.length == 1) {\n          d.activeTouch.left = e.touches[0].pageX;\n          d.activeTouch.top = e.touches[0].pageY;\n        }\n      }\n    });\n    on(d.scroller, \"touchmove\", function () {\n      if (d.activeTouch) { d.activeTouch.moved = true; }\n    });\n    on(d.scroller, \"touchend\", function (e) {\n      var touch = d.activeTouch;\n      if (touch && !eventInWidget(d, e) && touch.left != null &&\n          !touch.moved && new Date - touch.start < 300) {\n        var pos = cm.coordsChar(d.activeTouch, \"page\"), range;\n        if (!touch.prev || farAway(touch, touch.prev)) // Single tap\n          { range = new Range(pos, pos); }\n        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap\n          { range = cm.findWordAt(pos); }\n        else // Triple tap\n          { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }\n        cm.setSelection(range.anchor, range.head);\n        cm.focus();\n        e_preventDefault(e);\n      }\n      finishTouch();\n    });\n    on(d.scroller, \"touchcancel\", finishTouch);\n\n    // Sync scrolling between fake scrollbars and real scrollable\n    // area, ensure viewport is updated when scrolling.\n    on(d.scroller, \"scroll\", function () {\n      if (d.scroller.clientHeight) {\n        updateScrollTop(cm, d.scroller.scrollTop);\n        setScrollLeft(cm, d.scroller.scrollLeft, true);\n        signal(cm, \"scroll\", cm);\n      }\n    });\n\n    // Listen to wheel events in order to try and update the viewport on time.\n    on(d.scroller, \"mousewheel\", function (e) { return onScrollWheel(cm, e); });\n    on(d.scroller, \"DOMMouseScroll\", function (e) { return onScrollWheel(cm, e); });\n\n    // Prevent wrapper from ever scrolling\n    on(d.wrapper, \"scroll\", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });\n\n    d.dragFunctions = {\n      enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},\n      over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},\n      start: function (e) { return onDragStart(cm, e); },\n      drop: operation(cm, onDrop),\n      leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}\n    };\n\n    var inp = d.input.getField();\n    on(inp, \"keyup\", function (e) { return onKeyUp.call(cm, e); });\n    on(inp, \"keydown\", operation(cm, onKeyDown));\n    on(inp, \"keypress\", operation(cm, onKeyPress));\n    on(inp, \"focus\", function (e) { return onFocus(cm, e); });\n    on(inp, \"blur\", function (e) { return onBlur(cm, e); });\n  }\n\n  var initHooks = [];\n  CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };\n\n  // Indent the given line. The how parameter can be \"smart\",\n  // \"add\"/null, \"subtract\", or \"prev\". When aggressive is false\n  // (typically set to true for forced single-line indents), empty\n  // lines are not indented, and places where the mode returns Pass\n  // are left alone.\n  function indentLine(cm, n, how, aggressive) {\n    var doc = cm.doc, state;\n    if (how == null) { how = \"add\"; }\n    if (how == \"smart\") {\n      // Fall back to \"prev\" when the mode doesn't have an indentation\n      // method.\n      if (!doc.mode.indent) { how = \"prev\"; }\n      else { state = getContextBefore(cm, n).state; }\n    }\n\n    var tabSize = cm.options.tabSize;\n    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);\n    if (line.stateAfter) { line.stateAfter = null; }\n    var curSpaceString = line.text.match(/^\\s*/)[0], indentation;\n    if (!aggressive && !/\\S/.test(line.text)) {\n      indentation = 0;\n      how = \"not\";\n    } else if (how == \"smart\") {\n      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);\n      if (indentation == Pass || indentation > 150) {\n        if (!aggressive) { return }\n        how = \"prev\";\n      }\n    }\n    if (how == \"prev\") {\n      if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }\n      else { indentation = 0; }\n    } else if (how == \"add\") {\n      indentation = curSpace + cm.options.indentUnit;\n    } else if (how == \"subtract\") {\n      indentation = curSpace - cm.options.indentUnit;\n    } else if (typeof how == \"number\") {\n      indentation = curSpace + how;\n    }\n    indentation = Math.max(0, indentation);\n\n    var indentString = \"\", pos = 0;\n    if (cm.options.indentWithTabs)\n      { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += \"\\t\";} }\n    if (pos < indentation) { indentString += spaceStr(indentation - pos); }\n\n    if (indentString != curSpaceString) {\n      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), \"+input\");\n      line.stateAfter = null;\n      return true\n    } else {\n      // Ensure that, if the cursor was in the whitespace at the start\n      // of the line, it is moved to the end of that space.\n      for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {\n        var range = doc.sel.ranges[i$1];\n        if (range.head.line == n && range.head.ch < curSpaceString.length) {\n          var pos$1 = Pos(n, curSpaceString.length);\n          replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));\n          break\n        }\n      }\n    }\n  }\n\n  // This will be set to a {lineWise: bool, text: [string]} object, so\n  // that, when pasting, we know what kind of selections the copied\n  // text was made out of.\n  var lastCopied = null;\n\n  function setLastCopied(newLastCopied) {\n    lastCopied = newLastCopied;\n  }\n\n  function applyTextInput(cm, inserted, deleted, sel, origin) {\n    var doc = cm.doc;\n    cm.display.shift = false;\n    if (!sel) { sel = doc.sel; }\n\n    var recent = +new Date - 200;\n    var paste = origin == \"paste\" || cm.state.pasteIncoming > recent;\n    var textLines = splitLinesAuto(inserted), multiPaste = null;\n    // When pasting N lines into N selections, insert one line per selection\n    if (paste && sel.ranges.length > 1) {\n      if (lastCopied && lastCopied.text.join(\"\\n\") == inserted) {\n        if (sel.ranges.length % lastCopied.text.length == 0) {\n          multiPaste = [];\n          for (var i = 0; i < lastCopied.text.length; i++)\n            { multiPaste.push(doc.splitLines(lastCopied.text[i])); }\n        }\n      } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {\n        multiPaste = map(textLines, function (l) { return [l]; });\n      }\n    }\n\n    var updateInput = cm.curOp.updateInput;\n    // Normal behavior is to insert the new text into every selection\n    for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {\n      var range = sel.ranges[i$1];\n      var from = range.from(), to = range.to();\n      if (range.empty()) {\n        if (deleted && deleted > 0) // Handle deletion\n          { from = Pos(from.line, from.ch - deleted); }\n        else if (cm.state.overwrite && !paste) // Handle overwrite\n          { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }\n        else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join(\"\\n\") == inserted)\n          { from = to = Pos(from.line, 0); }\n      }\n      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,\n                         origin: origin || (paste ? \"paste\" : cm.state.cutIncoming > recent ? \"cut\" : \"+input\")};\n      makeChange(cm.doc, changeEvent);\n      signalLater(cm, \"inputRead\", cm, changeEvent);\n    }\n    if (inserted && !paste)\n      { triggerElectric(cm, inserted); }\n\n    ensureCursorVisible(cm);\n    if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }\n    cm.curOp.typing = true;\n    cm.state.pasteIncoming = cm.state.cutIncoming = -1;\n  }\n\n  function handlePaste(e, cm) {\n    var pasted = e.clipboardData && e.clipboardData.getData(\"Text\");\n    if (pasted) {\n      e.preventDefault();\n      if (!cm.isReadOnly() && !cm.options.disableInput)\n        { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, \"paste\"); }); }\n      return true\n    }\n  }\n\n  function triggerElectric(cm, inserted) {\n    // When an 'electric' character is inserted, immediately trigger a reindent\n    if (!cm.options.electricChars || !cm.options.smartIndent) { return }\n    var sel = cm.doc.sel;\n\n    for (var i = sel.ranges.length - 1; i >= 0; i--) {\n      var range = sel.ranges[i];\n      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }\n      var mode = cm.getModeAt(range.head);\n      var indented = false;\n      if (mode.electricChars) {\n        for (var j = 0; j < mode.electricChars.length; j++)\n          { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {\n            indented = indentLine(cm, range.head.line, \"smart\");\n            break\n          } }\n      } else if (mode.electricInput) {\n        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))\n          { indented = indentLine(cm, range.head.line, \"smart\"); }\n      }\n      if (indented) { signalLater(cm, \"electricInput\", cm, range.head.line); }\n    }\n  }\n\n  function copyableRanges(cm) {\n    var text = [], ranges = [];\n    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {\n      var line = cm.doc.sel.ranges[i].head.line;\n      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};\n      ranges.push(lineRange);\n      text.push(cm.getRange(lineRange.anchor, lineRange.head));\n    }\n    return {text: text, ranges: ranges}\n  }\n\n  function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {\n    field.setAttribute(\"autocorrect\", autocorrect ? \"\" : \"off\");\n    field.setAttribute(\"autocapitalize\", autocapitalize ? \"\" : \"off\");\n    field.setAttribute(\"spellcheck\", !!spellcheck);\n  }\n\n  function hiddenTextarea() {\n    var te = elt(\"textarea\", null, null, \"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none\");\n    var div = elt(\"div\", [te], null, \"overflow: hidden; position: relative; width: 3px; height: 0px;\");\n    // The textarea is kept positioned near the cursor to prevent the\n    // fact that it'll be scrolled into view on input from scrolling\n    // our fake cursor out of view. On webkit, when wrap=off, paste is\n    // very slow. So make the area wide instead.\n    if (webkit) { te.style.width = \"1000px\"; }\n    else { te.setAttribute(\"wrap\", \"off\"); }\n    // If border: 0; -- iOS fails to open keyboard (issue #1287)\n    if (ios) { te.style.border = \"1px solid black\"; }\n    disableBrowserMagic(te);\n    return div\n  }\n\n  // The publicly visible API. Note that methodOp(f) means\n  // 'wrap f in an operation, performed on its `this` parameter'.\n\n  // This is not the complete set of editor methods. Most of the\n  // methods defined on the Doc type are also injected into\n  // CodeMirror.prototype, for backwards compatibility and\n  // convenience.\n\n  function addEditorMethods(CodeMirror) {\n    var optionHandlers = CodeMirror.optionHandlers;\n\n    var helpers = CodeMirror.helpers = {};\n\n    CodeMirror.prototype = {\n      constructor: CodeMirror,\n      focus: function(){window.focus(); this.display.input.focus();},\n\n      setOption: function(option, value) {\n        var options = this.options, old = options[option];\n        if (options[option] == value && option != \"mode\") { return }\n        options[option] = value;\n        if (optionHandlers.hasOwnProperty(option))\n          { operation(this, optionHandlers[option])(this, value, old); }\n        signal(this, \"optionChange\", this, option);\n      },\n\n      getOption: function(option) {return this.options[option]},\n      getDoc: function() {return this.doc},\n\n      addKeyMap: function(map, bottom) {\n        this.state.keyMaps[bottom ? \"push\" : \"unshift\"](getKeyMap(map));\n      },\n      removeKeyMap: function(map) {\n        var maps = this.state.keyMaps;\n        for (var i = 0; i < maps.length; ++i)\n          { if (maps[i] == map || maps[i].name == map) {\n            maps.splice(i, 1);\n            return true\n          } }\n      },\n\n      addOverlay: methodOp(function(spec, options) {\n        var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);\n        if (mode.startState) { throw new Error(\"Overlays may not be stateful.\") }\n        insertSorted(this.state.overlays,\n                     {mode: mode, modeSpec: spec, opaque: options && options.opaque,\n                      priority: (options && options.priority) || 0},\n                     function (overlay) { return overlay.priority; });\n        this.state.modeGen++;\n        regChange(this);\n      }),\n      removeOverlay: methodOp(function(spec) {\n        var overlays = this.state.overlays;\n        for (var i = 0; i < overlays.length; ++i) {\n          var cur = overlays[i].modeSpec;\n          if (cur == spec || typeof spec == \"string\" && cur.name == spec) {\n            overlays.splice(i, 1);\n            this.state.modeGen++;\n            regChange(this);\n            return\n          }\n        }\n      }),\n\n      indentLine: methodOp(function(n, dir, aggressive) {\n        if (typeof dir != \"string\" && typeof dir != \"number\") {\n          if (dir == null) { dir = this.options.smartIndent ? \"smart\" : \"prev\"; }\n          else { dir = dir ? \"add\" : \"subtract\"; }\n        }\n        if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }\n      }),\n      indentSelection: methodOp(function(how) {\n        var ranges = this.doc.sel.ranges, end = -1;\n        for (var i = 0; i < ranges.length; i++) {\n          var range = ranges[i];\n          if (!range.empty()) {\n            var from = range.from(), to = range.to();\n            var start = Math.max(end, from.line);\n            end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;\n            for (var j = start; j < end; ++j)\n              { indentLine(this, j, how); }\n            var newRanges = this.doc.sel.ranges;\n            if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)\n              { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }\n          } else if (range.head.line > end) {\n            indentLine(this, range.head.line, how, true);\n            end = range.head.line;\n            if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }\n          }\n        }\n      }),\n\n      // Fetch the parser token for a given character. Useful for hacks\n      // that want to inspect the mode state (say, for completion).\n      getTokenAt: function(pos, precise) {\n        return takeToken(this, pos, precise)\n      },\n\n      getLineTokens: function(line, precise) {\n        return takeToken(this, Pos(line), precise, true)\n      },\n\n      getTokenTypeAt: function(pos) {\n        pos = clipPos(this.doc, pos);\n        var styles = getLineStyles(this, getLine(this.doc, pos.line));\n        var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;\n        var type;\n        if (ch == 0) { type = styles[2]; }\n        else { for (;;) {\n          var mid = (before + after) >> 1;\n          if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }\n          else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }\n          else { type = styles[mid * 2 + 2]; break }\n        } }\n        var cut = type ? type.indexOf(\"overlay \") : -1;\n        return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)\n      },\n\n      getModeAt: function(pos) {\n        var mode = this.doc.mode;\n        if (!mode.innerMode) { return mode }\n        return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode\n      },\n\n      getHelper: function(pos, type) {\n        return this.getHelpers(pos, type)[0]\n      },\n\n      getHelpers: function(pos, type) {\n        var found = [];\n        if (!helpers.hasOwnProperty(type)) { return found }\n        var help = helpers[type], mode = this.getModeAt(pos);\n        if (typeof mode[type] == \"string\") {\n          if (help[mode[type]]) { found.push(help[mode[type]]); }\n        } else if (mode[type]) {\n          for (var i = 0; i < mode[type].length; i++) {\n            var val = help[mode[type][i]];\n            if (val) { found.push(val); }\n          }\n        } else if (mode.helperType && help[mode.helperType]) {\n          found.push(help[mode.helperType]);\n        } else if (help[mode.name]) {\n          found.push(help[mode.name]);\n        }\n        for (var i$1 = 0; i$1 < help._global.length; i$1++) {\n          var cur = help._global[i$1];\n          if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)\n            { found.push(cur.val); }\n        }\n        return found\n      },\n\n      getStateAfter: function(line, precise) {\n        var doc = this.doc;\n        line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);\n        return getContextBefore(this, line + 1, precise).state\n      },\n\n      cursorCoords: function(start, mode) {\n        var pos, range = this.doc.sel.primary();\n        if (start == null) { pos = range.head; }\n        else if (typeof start == \"object\") { pos = clipPos(this.doc, start); }\n        else { pos = start ? range.from() : range.to(); }\n        return cursorCoords(this, pos, mode || \"page\")\n      },\n\n      charCoords: function(pos, mode) {\n        return charCoords(this, clipPos(this.doc, pos), mode || \"page\")\n      },\n\n      coordsChar: function(coords, mode) {\n        coords = fromCoordSystem(this, coords, mode || \"page\");\n        return coordsChar(this, coords.left, coords.top)\n      },\n\n      lineAtHeight: function(height, mode) {\n        height = fromCoordSystem(this, {top: height, left: 0}, mode || \"page\").top;\n        return lineAtHeight(this.doc, height + this.display.viewOffset)\n      },\n      heightAtLine: function(line, mode, includeWidgets) {\n        var end = false, lineObj;\n        if (typeof line == \"number\") {\n          var last = this.doc.first + this.doc.size - 1;\n          if (line < this.doc.first) { line = this.doc.first; }\n          else if (line > last) { line = last; end = true; }\n          lineObj = getLine(this.doc, line);\n        } else {\n          lineObj = line;\n        }\n        return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || \"page\", includeWidgets || end).top +\n          (end ? this.doc.height - heightAtLine(lineObj) : 0)\n      },\n\n      defaultTextHeight: function() { return textHeight(this.display) },\n      defaultCharWidth: function() { return charWidth(this.display) },\n\n      getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},\n\n      addWidget: function(pos, node, scroll, vert, horiz) {\n        var display = this.display;\n        pos = cursorCoords(this, clipPos(this.doc, pos));\n        var top = pos.bottom, left = pos.left;\n        node.style.position = \"absolute\";\n        node.setAttribute(\"cm-ignore-events\", \"true\");\n        this.display.input.setUneditable(node);\n        display.sizer.appendChild(node);\n        if (vert == \"over\") {\n          top = pos.top;\n        } else if (vert == \"above\" || vert == \"near\") {\n          var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),\n          hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);\n          // Default to positioning above (if specified and possible); otherwise default to positioning below\n          if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)\n            { top = pos.top - node.offsetHeight; }\n          else if (pos.bottom + node.offsetHeight <= vspace)\n            { top = pos.bottom; }\n          if (left + node.offsetWidth > hspace)\n            { left = hspace - node.offsetWidth; }\n        }\n        node.style.top = top + \"px\";\n        node.style.left = node.style.right = \"\";\n        if (horiz == \"right\") {\n          left = display.sizer.clientWidth - node.offsetWidth;\n          node.style.right = \"0px\";\n        } else {\n          if (horiz == \"left\") { left = 0; }\n          else if (horiz == \"middle\") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }\n          node.style.left = left + \"px\";\n        }\n        if (scroll)\n          { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }\n      },\n\n      triggerOnKeyDown: methodOp(onKeyDown),\n      triggerOnKeyPress: methodOp(onKeyPress),\n      triggerOnKeyUp: onKeyUp,\n      triggerOnMouseDown: methodOp(onMouseDown),\n\n      execCommand: function(cmd) {\n        if (commands.hasOwnProperty(cmd))\n          { return commands[cmd].call(null, this) }\n      },\n\n      triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),\n\n      findPosH: function(from, amount, unit, visually) {\n        var dir = 1;\n        if (amount < 0) { dir = -1; amount = -amount; }\n        var cur = clipPos(this.doc, from);\n        for (var i = 0; i < amount; ++i) {\n          cur = findPosH(this.doc, cur, dir, unit, visually);\n          if (cur.hitSide) { break }\n        }\n        return cur\n      },\n\n      moveH: methodOp(function(dir, unit) {\n        var this$1 = this;\n\n        this.extendSelectionsBy(function (range) {\n          if (this$1.display.shift || this$1.doc.extend || range.empty())\n            { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }\n          else\n            { return dir < 0 ? range.from() : range.to() }\n        }, sel_move);\n      }),\n\n      deleteH: methodOp(function(dir, unit) {\n        var sel = this.doc.sel, doc = this.doc;\n        if (sel.somethingSelected())\n          { doc.replaceSelection(\"\", null, \"+delete\"); }\n        else\n          { deleteNearSelection(this, function (range) {\n            var other = findPosH(doc, range.head, dir, unit, false);\n            return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}\n          }); }\n      }),\n\n      findPosV: function(from, amount, unit, goalColumn) {\n        var dir = 1, x = goalColumn;\n        if (amount < 0) { dir = -1; amount = -amount; }\n        var cur = clipPos(this.doc, from);\n        for (var i = 0; i < amount; ++i) {\n          var coords = cursorCoords(this, cur, \"div\");\n          if (x == null) { x = coords.left; }\n          else { coords.left = x; }\n          cur = findPosV(this, coords, dir, unit);\n          if (cur.hitSide) { break }\n        }\n        return cur\n      },\n\n      moveV: methodOp(function(dir, unit) {\n        var this$1 = this;\n\n        var doc = this.doc, goals = [];\n        var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();\n        doc.extendSelectionsBy(function (range) {\n          if (collapse)\n            { return dir < 0 ? range.from() : range.to() }\n          var headPos = cursorCoords(this$1, range.head, \"div\");\n          if (range.goalColumn != null) { headPos.left = range.goalColumn; }\n          goals.push(headPos.left);\n          var pos = findPosV(this$1, headPos, dir, unit);\n          if (unit == \"page\" && range == doc.sel.primary())\n            { addToScrollTop(this$1, charCoords(this$1, pos, \"div\").top - headPos.top); }\n          return pos\n        }, sel_move);\n        if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)\n          { doc.sel.ranges[i].goalColumn = goals[i]; } }\n      }),\n\n      // Find the word at the given position (as returned by coordsChar).\n      findWordAt: function(pos) {\n        var doc = this.doc, line = getLine(doc, pos.line).text;\n        var start = pos.ch, end = pos.ch;\n        if (line) {\n          var helper = this.getHelper(pos, \"wordChars\");\n          if ((pos.sticky == \"before\" || end == line.length) && start) { --start; } else { ++end; }\n          var startChar = line.charAt(start);\n          var check = isWordChar(startChar, helper)\n            ? function (ch) { return isWordChar(ch, helper); }\n            : /\\s/.test(startChar) ? function (ch) { return /\\s/.test(ch); }\n            : function (ch) { return (!/\\s/.test(ch) && !isWordChar(ch)); };\n          while (start > 0 && check(line.charAt(start - 1))) { --start; }\n          while (end < line.length && check(line.charAt(end))) { ++end; }\n        }\n        return new Range(Pos(pos.line, start), Pos(pos.line, end))\n      },\n\n      toggleOverwrite: function(value) {\n        if (value != null && value == this.state.overwrite) { return }\n        if (this.state.overwrite = !this.state.overwrite)\n          { addClass(this.display.cursorDiv, \"CodeMirror-overwrite\"); }\n        else\n          { rmClass(this.display.cursorDiv, \"CodeMirror-overwrite\"); }\n\n        signal(this, \"overwriteToggle\", this, this.state.overwrite);\n      },\n      hasFocus: function() { return this.display.input.getField() == activeElt() },\n      isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },\n\n      scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),\n      getScrollInfo: function() {\n        var scroller = this.display.scroller;\n        return {left: scroller.scrollLeft, top: scroller.scrollTop,\n                height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,\n                width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,\n                clientHeight: displayHeight(this), clientWidth: displayWidth(this)}\n      },\n\n      scrollIntoView: methodOp(function(range, margin) {\n        if (range == null) {\n          range = {from: this.doc.sel.primary().head, to: null};\n          if (margin == null) { margin = this.options.cursorScrollMargin; }\n        } else if (typeof range == \"number\") {\n          range = {from: Pos(range, 0), to: null};\n        } else if (range.from == null) {\n          range = {from: range, to: null};\n        }\n        if (!range.to) { range.to = range.from; }\n        range.margin = margin || 0;\n\n        if (range.from.line != null) {\n          scrollToRange(this, range);\n        } else {\n          scrollToCoordsRange(this, range.from, range.to, range.margin);\n        }\n      }),\n\n      setSize: methodOp(function(width, height) {\n        var this$1 = this;\n\n        var interpret = function (val) { return typeof val == \"number\" || /^\\d+$/.test(String(val)) ? val + \"px\" : val; };\n        if (width != null) { this.display.wrapper.style.width = interpret(width); }\n        if (height != null) { this.display.wrapper.style.height = interpret(height); }\n        if (this.options.lineWrapping) { clearLineMeasurementCache(this); }\n        var lineNo = this.display.viewFrom;\n        this.doc.iter(lineNo, this.display.viewTo, function (line) {\n          if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)\n            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, \"widget\"); break } } }\n          ++lineNo;\n        });\n        this.curOp.forceUpdate = true;\n        signal(this, \"refresh\", this);\n      }),\n\n      operation: function(f){return runInOp(this, f)},\n      startOperation: function(){return startOperation(this)},\n      endOperation: function(){return endOperation(this)},\n\n      refresh: methodOp(function() {\n        var oldHeight = this.display.cachedTextHeight;\n        regChange(this);\n        this.curOp.forceUpdate = true;\n        clearCaches(this);\n        scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);\n        updateGutterSpace(this.display);\n        if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)\n          { estimateLineHeights(this); }\n        signal(this, \"refresh\", this);\n      }),\n\n      swapDoc: methodOp(function(doc) {\n        var old = this.doc;\n        old.cm = null;\n        // Cancel the current text selection if any (#5821)\n        if (this.state.selectingText) { this.state.selectingText(); }\n        attachDoc(this, doc);\n        clearCaches(this);\n        this.display.input.reset();\n        scrollToCoords(this, doc.scrollLeft, doc.scrollTop);\n        this.curOp.forceScroll = true;\n        signalLater(this, \"swapDoc\", this, old);\n        return old\n      }),\n\n      phrase: function(phraseText) {\n        var phrases = this.options.phrases;\n        return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText\n      },\n\n      getInputField: function(){return this.display.input.getField()},\n      getWrapperElement: function(){return this.display.wrapper},\n      getScrollerElement: function(){return this.display.scroller},\n      getGutterElement: function(){return this.display.gutters}\n    };\n    eventMixin(CodeMirror);\n\n    CodeMirror.registerHelper = function(type, name, value) {\n      if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }\n      helpers[type][name] = value;\n    };\n    CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {\n      CodeMirror.registerHelper(type, name, value);\n      helpers[type]._global.push({pred: predicate, val: value});\n    };\n  }\n\n  // Used for horizontal relative motion. Dir is -1 or 1 (left or\n  // right), unit can be \"char\", \"column\" (like char, but doesn't\n  // cross line boundaries), \"word\" (across next word), or \"group\" (to\n  // the start of next group of word or non-word-non-whitespace\n  // chars). The visually param controls whether, in right-to-left\n  // text, direction 1 means to move towards the next index in the\n  // string, or towards the character to the right of the current\n  // position. The resulting position will have a hitSide=true\n  // property if it reached the end of the document.\n  function findPosH(doc, pos, dir, unit, visually) {\n    var oldPos = pos;\n    var origDir = dir;\n    var lineObj = getLine(doc, pos.line);\n    var lineDir = visually && doc.direction == \"rtl\" ? -dir : dir;\n    function findNextLine() {\n      var l = pos.line + lineDir;\n      if (l < doc.first || l >= doc.first + doc.size) { return false }\n      pos = new Pos(l, pos.ch, pos.sticky);\n      return lineObj = getLine(doc, l)\n    }\n    function moveOnce(boundToLine) {\n      var next;\n      if (visually) {\n        next = moveVisually(doc.cm, lineObj, pos, dir);\n      } else {\n        next = moveLogically(lineObj, pos, dir);\n      }\n      if (next == null) {\n        if (!boundToLine && findNextLine())\n          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }\n        else\n          { return false }\n      } else {\n        pos = next;\n      }\n      return true\n    }\n\n    if (unit == \"char\") {\n      moveOnce();\n    } else if (unit == \"column\") {\n      moveOnce(true);\n    } else if (unit == \"word\" || unit == \"group\") {\n      var sawType = null, group = unit == \"group\";\n      var helper = doc.cm && doc.cm.getHelper(pos, \"wordChars\");\n      for (var first = true;; first = false) {\n        if (dir < 0 && !moveOnce(!first)) { break }\n        var cur = lineObj.text.charAt(pos.ch) || \"\\n\";\n        var type = isWordChar(cur, helper) ? \"w\"\n          : group && cur == \"\\n\" ? \"n\"\n          : !group || /\\s/.test(cur) ? null\n          : \"p\";\n        if (group && !first && !type) { type = \"s\"; }\n        if (sawType && sawType != type) {\n          if (dir < 0) {dir = 1; moveOnce(); pos.sticky = \"after\";}\n          break\n        }\n\n        if (type) { sawType = type; }\n        if (dir > 0 && !moveOnce(!first)) { break }\n      }\n    }\n    var result = skipAtomic(doc, pos, oldPos, origDir, true);\n    if (equalCursorPos(oldPos, result)) { result.hitSide = true; }\n    return result\n  }\n\n  // For relative vertical movement. Dir may be -1 or 1. Unit can be\n  // \"page\" or \"line\". The resulting position will have a hitSide=true\n  // property if it reached the end of the document.\n  function findPosV(cm, pos, dir, unit) {\n    var doc = cm.doc, x = pos.left, y;\n    if (unit == \"page\") {\n      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);\n      var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);\n      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;\n\n    } else if (unit == \"line\") {\n      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;\n    }\n    var target;\n    for (;;) {\n      target = coordsChar(cm, x, y);\n      if (!target.outside) { break }\n      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }\n      y += dir * 5;\n    }\n    return target\n  }\n\n  // CONTENTEDITABLE INPUT STYLE\n\n  var ContentEditableInput = function(cm) {\n    this.cm = cm;\n    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;\n    this.polling = new Delayed();\n    this.composing = null;\n    this.gracePeriod = false;\n    this.readDOMTimeout = null;\n  };\n\n  ContentEditableInput.prototype.init = function (display) {\n      var this$1 = this;\n\n    var input = this, cm = input.cm;\n    var div = input.div = display.lineDiv;\n    disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);\n\n    on(div, \"paste\", function (e) {\n      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n      // IE doesn't fire input events, so we schedule a read for the pasted content in this way\n      if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }\n    });\n\n    on(div, \"compositionstart\", function (e) {\n      this$1.composing = {data: e.data, done: false};\n    });\n    on(div, \"compositionupdate\", function (e) {\n      if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }\n    });\n    on(div, \"compositionend\", function (e) {\n      if (this$1.composing) {\n        if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }\n        this$1.composing.done = true;\n      }\n    });\n\n    on(div, \"touchstart\", function () { return input.forceCompositionEnd(); });\n\n    on(div, \"input\", function () {\n      if (!this$1.composing) { this$1.readFromDOMSoon(); }\n    });\n\n    function onCopyCut(e) {\n      if (signalDOMEvent(cm, e)) { return }\n      if (cm.somethingSelected()) {\n        setLastCopied({lineWise: false, text: cm.getSelections()});\n        if (e.type == \"cut\") { cm.replaceSelection(\"\", null, \"cut\"); }\n      } else if (!cm.options.lineWiseCopyCut) {\n        return\n      } else {\n        var ranges = copyableRanges(cm);\n        setLastCopied({lineWise: true, text: ranges.text});\n        if (e.type == \"cut\") {\n          cm.operation(function () {\n            cm.setSelections(ranges.ranges, 0, sel_dontScroll);\n            cm.replaceSelection(\"\", null, \"cut\");\n          });\n        }\n      }\n      if (e.clipboardData) {\n        e.clipboardData.clearData();\n        var content = lastCopied.text.join(\"\\n\");\n        // iOS exposes the clipboard API, but seems to discard content inserted into it\n        e.clipboardData.setData(\"Text\", content);\n        if (e.clipboardData.getData(\"Text\") == content) {\n          e.preventDefault();\n          return\n        }\n      }\n      // Old-fashioned briefly-focus-a-textarea hack\n      var kludge = hiddenTextarea(), te = kludge.firstChild;\n      cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);\n      te.value = lastCopied.text.join(\"\\n\");\n      var hadFocus = document.activeElement;\n      selectInput(te);\n      setTimeout(function () {\n        cm.display.lineSpace.removeChild(kludge);\n        hadFocus.focus();\n        if (hadFocus == div) { input.showPrimarySelection(); }\n      }, 50);\n    }\n    on(div, \"copy\", onCopyCut);\n    on(div, \"cut\", onCopyCut);\n  };\n\n  ContentEditableInput.prototype.prepareSelection = function () {\n    var result = prepareSelection(this.cm, false);\n    result.focus = this.cm.state.focused;\n    return result\n  };\n\n  ContentEditableInput.prototype.showSelection = function (info, takeFocus) {\n    if (!info || !this.cm.display.view.length) { return }\n    if (info.focus || takeFocus) { this.showPrimarySelection(); }\n    this.showMultipleSelections(info);\n  };\n\n  ContentEditableInput.prototype.getSelection = function () {\n    return this.cm.display.wrapper.ownerDocument.getSelection()\n  };\n\n  ContentEditableInput.prototype.showPrimarySelection = function () {\n    var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();\n    var from = prim.from(), to = prim.to();\n\n    if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {\n      sel.removeAllRanges();\n      return\n    }\n\n    var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\n    var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);\n    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&\n        cmp(minPos(curAnchor, curFocus), from) == 0 &&\n        cmp(maxPos(curAnchor, curFocus), to) == 0)\n      { return }\n\n    var view = cm.display.view;\n    var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||\n        {node: view[0].measure.map[2], offset: 0};\n    var end = to.line < cm.display.viewTo && posToDOM(cm, to);\n    if (!end) {\n      var measure = view[view.length - 1].measure;\n      var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;\n      end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};\n    }\n\n    if (!start || !end) {\n      sel.removeAllRanges();\n      return\n    }\n\n    var old = sel.rangeCount && sel.getRangeAt(0), rng;\n    try { rng = range(start.node, start.offset, end.offset, end.node); }\n    catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible\n    if (rng) {\n      if (!gecko && cm.state.focused) {\n        sel.collapse(start.node, start.offset);\n        if (!rng.collapsed) {\n          sel.removeAllRanges();\n          sel.addRange(rng);\n        }\n      } else {\n        sel.removeAllRanges();\n        sel.addRange(rng);\n      }\n      if (old && sel.anchorNode == null) { sel.addRange(old); }\n      else if (gecko) { this.startGracePeriod(); }\n    }\n    this.rememberSelection();\n  };\n\n  ContentEditableInput.prototype.startGracePeriod = function () {\n      var this$1 = this;\n\n    clearTimeout(this.gracePeriod);\n    this.gracePeriod = setTimeout(function () {\n      this$1.gracePeriod = false;\n      if (this$1.selectionChanged())\n        { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }\n    }, 20);\n  };\n\n  ContentEditableInput.prototype.showMultipleSelections = function (info) {\n    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);\n    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);\n  };\n\n  ContentEditableInput.prototype.rememberSelection = function () {\n    var sel = this.getSelection();\n    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;\n    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;\n  };\n\n  ContentEditableInput.prototype.selectionInEditor = function () {\n    var sel = this.getSelection();\n    if (!sel.rangeCount) { return false }\n    var node = sel.getRangeAt(0).commonAncestorContainer;\n    return contains(this.div, node)\n  };\n\n  ContentEditableInput.prototype.focus = function () {\n    if (this.cm.options.readOnly != \"nocursor\") {\n      if (!this.selectionInEditor())\n        { this.showSelection(this.prepareSelection(), true); }\n      this.div.focus();\n    }\n  };\n  ContentEditableInput.prototype.blur = function () { this.div.blur(); };\n  ContentEditableInput.prototype.getField = function () { return this.div };\n\n  ContentEditableInput.prototype.supportsTouch = function () { return true };\n\n  ContentEditableInput.prototype.receivedFocus = function () {\n    var input = this;\n    if (this.selectionInEditor())\n      { this.pollSelection(); }\n    else\n      { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }\n\n    function poll() {\n      if (input.cm.state.focused) {\n        input.pollSelection();\n        input.polling.set(input.cm.options.pollInterval, poll);\n      }\n    }\n    this.polling.set(this.cm.options.pollInterval, poll);\n  };\n\n  ContentEditableInput.prototype.selectionChanged = function () {\n    var sel = this.getSelection();\n    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||\n      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset\n  };\n\n  ContentEditableInput.prototype.pollSelection = function () {\n    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }\n    var sel = this.getSelection(), cm = this.cm;\n    // On Android Chrome (version 56, at least), backspacing into an\n    // uneditable block element will put the cursor in that element,\n    // and then, because it's not editable, hide the virtual keyboard.\n    // Because Android doesn't allow us to actually detect backspace\n    // presses in a sane way, this code checks for when that happens\n    // and simulates a backspace press in this case.\n    if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {\n      this.cm.triggerOnKeyDown({type: \"keydown\", keyCode: 8, preventDefault: Math.abs});\n      this.blur();\n      this.focus();\n      return\n    }\n    if (this.composing) { return }\n    this.rememberSelection();\n    var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\n    var head = domToPos(cm, sel.focusNode, sel.focusOffset);\n    if (anchor && head) { runInOp(cm, function () {\n      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);\n      if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }\n    }); }\n  };\n\n  ContentEditableInput.prototype.pollContent = function () {\n    if (this.readDOMTimeout != null) {\n      clearTimeout(this.readDOMTimeout);\n      this.readDOMTimeout = null;\n    }\n\n    var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();\n    var from = sel.from(), to = sel.to();\n    if (from.ch == 0 && from.line > cm.firstLine())\n      { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }\n    if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())\n      { to = Pos(to.line + 1, 0); }\n    if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }\n\n    var fromIndex, fromLine, fromNode;\n    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {\n      fromLine = lineNo(display.view[0].line);\n      fromNode = display.view[0].node;\n    } else {\n      fromLine = lineNo(display.view[fromIndex].line);\n      fromNode = display.view[fromIndex - 1].node.nextSibling;\n    }\n    var toIndex = findViewIndex(cm, to.line);\n    var toLine, toNode;\n    if (toIndex == display.view.length - 1) {\n      toLine = display.viewTo - 1;\n      toNode = display.lineDiv.lastChild;\n    } else {\n      toLine = lineNo(display.view[toIndex + 1].line) - 1;\n      toNode = display.view[toIndex + 1].node.previousSibling;\n    }\n\n    if (!fromNode) { return false }\n    var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));\n    var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));\n    while (newText.length > 1 && oldText.length > 1) {\n      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }\n      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }\n      else { break }\n    }\n\n    var cutFront = 0, cutEnd = 0;\n    var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);\n    while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))\n      { ++cutFront; }\n    var newBot = lst(newText), oldBot = lst(oldText);\n    var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),\n                             oldBot.length - (oldText.length == 1 ? cutFront : 0));\n    while (cutEnd < maxCutEnd &&\n           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))\n      { ++cutEnd; }\n    // Try to move start of change to start of selection if ambiguous\n    if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {\n      while (cutFront && cutFront > from.ch &&\n             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {\n        cutFront--;\n        cutEnd++;\n      }\n    }\n\n    newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\\u200b+/, \"\");\n    newText[0] = newText[0].slice(cutFront).replace(/\\u200b+$/, \"\");\n\n    var chFrom = Pos(fromLine, cutFront);\n    var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);\n    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {\n      replaceRange(cm.doc, newText, chFrom, chTo, \"+input\");\n      return true\n    }\n  };\n\n  ContentEditableInput.prototype.ensurePolled = function () {\n    this.forceCompositionEnd();\n  };\n  ContentEditableInput.prototype.reset = function () {\n    this.forceCompositionEnd();\n  };\n  ContentEditableInput.prototype.forceCompositionEnd = function () {\n    if (!this.composing) { return }\n    clearTimeout(this.readDOMTimeout);\n    this.composing = null;\n    this.updateFromDOM();\n    this.div.blur();\n    this.div.focus();\n  };\n  ContentEditableInput.prototype.readFromDOMSoon = function () {\n      var this$1 = this;\n\n    if (this.readDOMTimeout != null) { return }\n    this.readDOMTimeout = setTimeout(function () {\n      this$1.readDOMTimeout = null;\n      if (this$1.composing) {\n        if (this$1.composing.done) { this$1.composing = null; }\n        else { return }\n      }\n      this$1.updateFromDOM();\n    }, 80);\n  };\n\n  ContentEditableInput.prototype.updateFromDOM = function () {\n      var this$1 = this;\n\n    if (this.cm.isReadOnly() || !this.pollContent())\n      { runInOp(this.cm, function () { return regChange(this$1.cm); }); }\n  };\n\n  ContentEditableInput.prototype.setUneditable = function (node) {\n    node.contentEditable = \"false\";\n  };\n\n  ContentEditableInput.prototype.onKeyPress = function (e) {\n    if (e.charCode == 0 || this.composing) { return }\n    e.preventDefault();\n    if (!this.cm.isReadOnly())\n      { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }\n  };\n\n  ContentEditableInput.prototype.readOnlyChanged = function (val) {\n    this.div.contentEditable = String(val != \"nocursor\");\n  };\n\n  ContentEditableInput.prototype.onContextMenu = function () {};\n  ContentEditableInput.prototype.resetPosition = function () {};\n\n  ContentEditableInput.prototype.needsContentAttribute = true;\n\n  function posToDOM(cm, pos) {\n    var view = findViewForLine(cm, pos.line);\n    if (!view || view.hidden) { return null }\n    var line = getLine(cm.doc, pos.line);\n    var info = mapFromLineView(view, line, pos.line);\n\n    var order = getOrder(line, cm.doc.direction), side = \"left\";\n    if (order) {\n      var partPos = getBidiPartAt(order, pos.ch);\n      side = partPos % 2 ? \"right\" : \"left\";\n    }\n    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);\n    result.offset = result.collapse == \"right\" ? result.end : result.start;\n    return result\n  }\n\n  function isInGutter(node) {\n    for (var scan = node; scan; scan = scan.parentNode)\n      { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }\n    return false\n  }\n\n  function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }\n\n  function domTextBetween(cm, from, to, fromLine, toLine) {\n    var text = \"\", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;\n    function recognizeMarker(id) { return function (marker) { return marker.id == id; } }\n    function close() {\n      if (closing) {\n        text += lineSep;\n        if (extraLinebreak) { text += lineSep; }\n        closing = extraLinebreak = false;\n      }\n    }\n    function addText(str) {\n      if (str) {\n        close();\n        text += str;\n      }\n    }\n    function walk(node) {\n      if (node.nodeType == 1) {\n        var cmText = node.getAttribute(\"cm-text\");\n        if (cmText) {\n          addText(cmText);\n          return\n        }\n        var markerID = node.getAttribute(\"cm-marker\"), range;\n        if (markerID) {\n          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));\n          if (found.length && (range = found[0].find(0)))\n            { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }\n          return\n        }\n        if (node.getAttribute(\"contenteditable\") == \"false\") { return }\n        var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);\n        if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }\n\n        if (isBlock) { close(); }\n        for (var i = 0; i < node.childNodes.length; i++)\n          { walk(node.childNodes[i]); }\n\n        if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }\n        if (isBlock) { closing = true; }\n      } else if (node.nodeType == 3) {\n        addText(node.nodeValue.replace(/\\u200b/g, \"\").replace(/\\u00a0/g, \" \"));\n      }\n    }\n    for (;;) {\n      walk(from);\n      if (from == to) { break }\n      from = from.nextSibling;\n      extraLinebreak = false;\n    }\n    return text\n  }\n\n  function domToPos(cm, node, offset) {\n    var lineNode;\n    if (node == cm.display.lineDiv) {\n      lineNode = cm.display.lineDiv.childNodes[offset];\n      if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }\n      node = null; offset = 0;\n    } else {\n      for (lineNode = node;; lineNode = lineNode.parentNode) {\n        if (!lineNode || lineNode == cm.display.lineDiv) { return null }\n        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }\n      }\n    }\n    for (var i = 0; i < cm.display.view.length; i++) {\n      var lineView = cm.display.view[i];\n      if (lineView.node == lineNode)\n        { return locateNodeInLineView(lineView, node, offset) }\n    }\n  }\n\n  function locateNodeInLineView(lineView, node, offset) {\n    var wrapper = lineView.text.firstChild, bad = false;\n    if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }\n    if (node == wrapper) {\n      bad = true;\n      node = wrapper.childNodes[offset];\n      offset = 0;\n      if (!node) {\n        var line = lineView.rest ? lst(lineView.rest) : lineView.line;\n        return badPos(Pos(lineNo(line), line.text.length), bad)\n      }\n    }\n\n    var textNode = node.nodeType == 3 ? node : null, topNode = node;\n    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {\n      textNode = node.firstChild;\n      if (offset) { offset = textNode.nodeValue.length; }\n    }\n    while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }\n    var measure = lineView.measure, maps = measure.maps;\n\n    function find(textNode, topNode, offset) {\n      for (var i = -1; i < (maps ? maps.length : 0); i++) {\n        var map = i < 0 ? measure.map : maps[i];\n        for (var j = 0; j < map.length; j += 3) {\n          var curNode = map[j + 2];\n          if (curNode == textNode || curNode == topNode) {\n            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);\n            var ch = map[j] + offset;\n            if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }\n            return Pos(line, ch)\n          }\n        }\n      }\n    }\n    var found = find(textNode, topNode, offset);\n    if (found) { return badPos(found, bad) }\n\n    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems\n    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {\n      found = find(after, after.firstChild, 0);\n      if (found)\n        { return badPos(Pos(found.line, found.ch - dist), bad) }\n      else\n        { dist += after.textContent.length; }\n    }\n    for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {\n      found = find(before, before.firstChild, -1);\n      if (found)\n        { return badPos(Pos(found.line, found.ch + dist$1), bad) }\n      else\n        { dist$1 += before.textContent.length; }\n    }\n  }\n\n  // TEXTAREA INPUT STYLE\n\n  var TextareaInput = function(cm) {\n    this.cm = cm;\n    // See input.poll and input.reset\n    this.prevInput = \"\";\n\n    // Flag that indicates whether we expect input to appear real soon\n    // now (after some event like 'keypress' or 'input') and are\n    // polling intensively.\n    this.pollingFast = false;\n    // Self-resetting timeout for the poller\n    this.polling = new Delayed();\n    // Used to work around IE issue with selection being forgotten when focus moves away from textarea\n    this.hasSelection = false;\n    this.composing = null;\n  };\n\n  TextareaInput.prototype.init = function (display) {\n      var this$1 = this;\n\n    var input = this, cm = this.cm;\n    this.createField(display);\n    var te = this.textarea;\n\n    display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);\n\n    // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)\n    if (ios) { te.style.width = \"0px\"; }\n\n    on(te, \"input\", function () {\n      if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }\n      input.poll();\n    });\n\n    on(te, \"paste\", function (e) {\n      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n\n      cm.state.pasteIncoming = +new Date;\n      input.fastPoll();\n    });\n\n    function prepareCopyCut(e) {\n      if (signalDOMEvent(cm, e)) { return }\n      if (cm.somethingSelected()) {\n        setLastCopied({lineWise: false, text: cm.getSelections()});\n      } else if (!cm.options.lineWiseCopyCut) {\n        return\n      } else {\n        var ranges = copyableRanges(cm);\n        setLastCopied({lineWise: true, text: ranges.text});\n        if (e.type == \"cut\") {\n          cm.setSelections(ranges.ranges, null, sel_dontScroll);\n        } else {\n          input.prevInput = \"\";\n          te.value = ranges.text.join(\"\\n\");\n          selectInput(te);\n        }\n      }\n      if (e.type == \"cut\") { cm.state.cutIncoming = +new Date; }\n    }\n    on(te, \"cut\", prepareCopyCut);\n    on(te, \"copy\", prepareCopyCut);\n\n    on(display.scroller, \"paste\", function (e) {\n      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }\n      if (!te.dispatchEvent) {\n        cm.state.pasteIncoming = +new Date;\n        input.focus();\n        return\n      }\n\n      // Pass the `paste` event to the textarea so it's handled by its event listener.\n      var event = new Event(\"paste\");\n      event.clipboardData = e.clipboardData;\n      te.dispatchEvent(event);\n    });\n\n    // Prevent normal selection in the editor (we handle our own)\n    on(display.lineSpace, \"selectstart\", function (e) {\n      if (!eventInWidget(display, e)) { e_preventDefault(e); }\n    });\n\n    on(te, \"compositionstart\", function () {\n      var start = cm.getCursor(\"from\");\n      if (input.composing) { input.composing.range.clear(); }\n      input.composing = {\n        start: start,\n        range: cm.markText(start, cm.getCursor(\"to\"), {className: \"CodeMirror-composing\"})\n      };\n    });\n    on(te, \"compositionend\", function () {\n      if (input.composing) {\n        input.poll();\n        input.composing.range.clear();\n        input.composing = null;\n      }\n    });\n  };\n\n  TextareaInput.prototype.createField = function (_display) {\n    // Wraps and hides input textarea\n    this.wrapper = hiddenTextarea();\n    // The semihidden textarea that is focused when the editor is\n    // focused, and receives input.\n    this.textarea = this.wrapper.firstChild;\n  };\n\n  TextareaInput.prototype.prepareSelection = function () {\n    // Redraw the selection and/or cursor\n    var cm = this.cm, display = cm.display, doc = cm.doc;\n    var result = prepareSelection(cm);\n\n    // Move the hidden textarea near the cursor to prevent scrolling artifacts\n    if (cm.options.moveInputWithCursor) {\n      var headPos = cursorCoords(cm, doc.sel.primary().head, \"div\");\n      var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();\n      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,\n                                          headPos.top + lineOff.top - wrapOff.top));\n      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,\n                                           headPos.left + lineOff.left - wrapOff.left));\n    }\n\n    return result\n  };\n\n  TextareaInput.prototype.showSelection = function (drawn) {\n    var cm = this.cm, display = cm.display;\n    removeChildrenAndAdd(display.cursorDiv, drawn.cursors);\n    removeChildrenAndAdd(display.selectionDiv, drawn.selection);\n    if (drawn.teTop != null) {\n      this.wrapper.style.top = drawn.teTop + \"px\";\n      this.wrapper.style.left = drawn.teLeft + \"px\";\n    }\n  };\n\n  // Reset the input to correspond to the selection (or to be empty,\n  // when not typing and nothing is selected)\n  TextareaInput.prototype.reset = function (typing) {\n    if (this.contextMenuPending || this.composing) { return }\n    var cm = this.cm;\n    if (cm.somethingSelected()) {\n      this.prevInput = \"\";\n      var content = cm.getSelection();\n      this.textarea.value = content;\n      if (cm.state.focused) { selectInput(this.textarea); }\n      if (ie && ie_version >= 9) { this.hasSelection = content; }\n    } else if (!typing) {\n      this.prevInput = this.textarea.value = \"\";\n      if (ie && ie_version >= 9) { this.hasSelection = null; }\n    }\n  };\n\n  TextareaInput.prototype.getField = function () { return this.textarea };\n\n  TextareaInput.prototype.supportsTouch = function () { return false };\n\n  TextareaInput.prototype.focus = function () {\n    if (this.cm.options.readOnly != \"nocursor\" && (!mobile || activeElt() != this.textarea)) {\n      try { this.textarea.focus(); }\n      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM\n    }\n  };\n\n  TextareaInput.prototype.blur = function () { this.textarea.blur(); };\n\n  TextareaInput.prototype.resetPosition = function () {\n    this.wrapper.style.top = this.wrapper.style.left = 0;\n  };\n\n  TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };\n\n  // Poll for input changes, using the normal rate of polling. This\n  // runs as long as the editor is focused.\n  TextareaInput.prototype.slowPoll = function () {\n      var this$1 = this;\n\n    if (this.pollingFast) { return }\n    this.polling.set(this.cm.options.pollInterval, function () {\n      this$1.poll();\n      if (this$1.cm.state.focused) { this$1.slowPoll(); }\n    });\n  };\n\n  // When an event has just come in that is likely to add or change\n  // something in the input textarea, we poll faster, to ensure that\n  // the change appears on the screen quickly.\n  TextareaInput.prototype.fastPoll = function () {\n    var missed = false, input = this;\n    input.pollingFast = true;\n    function p() {\n      var changed = input.poll();\n      if (!changed && !missed) {missed = true; input.polling.set(60, p);}\n      else {input.pollingFast = false; input.slowPoll();}\n    }\n    input.polling.set(20, p);\n  };\n\n  // Read input from the textarea, and update the document to match.\n  // When something is selected, it is present in the textarea, and\n  // selected (unless it is huge, in which case a placeholder is\n  // used). When nothing is selected, the cursor sits after previously\n  // seen text (can be empty), which is stored in prevInput (we must\n  // not reset the textarea when typing, because that breaks IME).\n  TextareaInput.prototype.poll = function () {\n      var this$1 = this;\n\n    var cm = this.cm, input = this.textarea, prevInput = this.prevInput;\n    // Since this is called a *lot*, try to bail out as cheaply as\n    // possible when it is clear that nothing happened. hasSelection\n    // will be the case when there is a lot of text in the textarea,\n    // in which case reading its value would be expensive.\n    if (this.contextMenuPending || !cm.state.focused ||\n        (hasSelection(input) && !prevInput && !this.composing) ||\n        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)\n      { return false }\n\n    var text = input.value;\n    // If nothing changed, bail.\n    if (text == prevInput && !cm.somethingSelected()) { return false }\n    // Work around nonsensical selection resetting in IE9/10, and\n    // inexplicable appearance of private area unicode characters on\n    // some key combos in Mac (#2689).\n    if (ie && ie_version >= 9 && this.hasSelection === text ||\n        mac && /[\\uf700-\\uf7ff]/.test(text)) {\n      cm.display.input.reset();\n      return false\n    }\n\n    if (cm.doc.sel == cm.display.selForContextMenu) {\n      var first = text.charCodeAt(0);\n      if (first == 0x200b && !prevInput) { prevInput = \"\\u200b\"; }\n      if (first == 0x21da) { this.reset(); return this.cm.execCommand(\"undo\") }\n    }\n    // Find the part of the input that is actually new\n    var same = 0, l = Math.min(prevInput.length, text.length);\n    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }\n\n    runInOp(cm, function () {\n      applyTextInput(cm, text.slice(same), prevInput.length - same,\n                     null, this$1.composing ? \"*compose\" : null);\n\n      // Don't leave long text in the textarea, since it makes further polling slow\n      if (text.length > 1000 || text.indexOf(\"\\n\") > -1) { input.value = this$1.prevInput = \"\"; }\n      else { this$1.prevInput = text; }\n\n      if (this$1.composing) {\n        this$1.composing.range.clear();\n        this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor(\"to\"),\n                                           {className: \"CodeMirror-composing\"});\n      }\n    });\n    return true\n  };\n\n  TextareaInput.prototype.ensurePolled = function () {\n    if (this.pollingFast && this.poll()) { this.pollingFast = false; }\n  };\n\n  TextareaInput.prototype.onKeyPress = function () {\n    if (ie && ie_version >= 9) { this.hasSelection = null; }\n    this.fastPoll();\n  };\n\n  TextareaInput.prototype.onContextMenu = function (e) {\n    var input = this, cm = input.cm, display = cm.display, te = input.textarea;\n    if (input.contextMenuPending) { input.contextMenuPending(); }\n    var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;\n    if (!pos || presto) { return } // Opera is difficult.\n\n    // Reset the current text selection only if the click is done outside of the selection\n    // and 'resetSelectionOnContextMenu' option is true.\n    var reset = cm.options.resetSelectionOnContextMenu;\n    if (reset && cm.doc.sel.contains(pos) == -1)\n      { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }\n\n    var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;\n    var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();\n    input.wrapper.style.cssText = \"position: static\";\n    te.style.cssText = \"position: absolute; width: 30px; height: 30px;\\n      top: \" + (e.clientY - wrapperBox.top - 5) + \"px; left: \" + (e.clientX - wrapperBox.left - 5) + \"px;\\n      z-index: 1000; background: \" + (ie ? \"rgba(255, 255, 255, .05)\" : \"transparent\") + \";\\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);\";\n    var oldScrollY;\n    if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)\n    display.input.focus();\n    if (webkit) { window.scrollTo(null, oldScrollY); }\n    display.input.reset();\n    // Adds \"Select all\" to context menu in FF\n    if (!cm.somethingSelected()) { te.value = input.prevInput = \" \"; }\n    input.contextMenuPending = rehide;\n    display.selForContextMenu = cm.doc.sel;\n    clearTimeout(display.detectingSelectAll);\n\n    // Select-all will be greyed out if there's nothing to select, so\n    // this adds a zero-width space so that we can later check whether\n    // it got selected.\n    function prepareSelectAllHack() {\n      if (te.selectionStart != null) {\n        var selected = cm.somethingSelected();\n        var extval = \"\\u200b\" + (selected ? te.value : \"\");\n        te.value = \"\\u21da\"; // Used to catch context-menu undo\n        te.value = extval;\n        input.prevInput = selected ? \"\" : \"\\u200b\";\n        te.selectionStart = 1; te.selectionEnd = extval.length;\n        // Re-set this, in case some other handler touched the\n        // selection in the meantime.\n        display.selForContextMenu = cm.doc.sel;\n      }\n    }\n    function rehide() {\n      if (input.contextMenuPending != rehide) { return }\n      input.contextMenuPending = false;\n      input.wrapper.style.cssText = oldWrapperCSS;\n      te.style.cssText = oldCSS;\n      if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }\n\n      // Try to detect the user choosing select-all\n      if (te.selectionStart != null) {\n        if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }\n        var i = 0, poll = function () {\n          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&\n              te.selectionEnd > 0 && input.prevInput == \"\\u200b\") {\n            operation(cm, selectAll)(cm);\n          } else if (i++ < 10) {\n            display.detectingSelectAll = setTimeout(poll, 500);\n          } else {\n            display.selForContextMenu = null;\n            display.input.reset();\n          }\n        };\n        display.detectingSelectAll = setTimeout(poll, 200);\n      }\n    }\n\n    if (ie && ie_version >= 9) { prepareSelectAllHack(); }\n    if (captureRightClick) {\n      e_stop(e);\n      var mouseup = function () {\n        off(window, \"mouseup\", mouseup);\n        setTimeout(rehide, 20);\n      };\n      on(window, \"mouseup\", mouseup);\n    } else {\n      setTimeout(rehide, 50);\n    }\n  };\n\n  TextareaInput.prototype.readOnlyChanged = function (val) {\n    if (!val) { this.reset(); }\n    this.textarea.disabled = val == \"nocursor\";\n  };\n\n  TextareaInput.prototype.setUneditable = function () {};\n\n  TextareaInput.prototype.needsContentAttribute = false;\n\n  function fromTextArea(textarea, options) {\n    options = options ? copyObj(options) : {};\n    options.value = textarea.value;\n    if (!options.tabindex && textarea.tabIndex)\n      { options.tabindex = textarea.tabIndex; }\n    if (!options.placeholder && textarea.placeholder)\n      { options.placeholder = textarea.placeholder; }\n    // Set autofocus to true if this textarea is focused, or if it has\n    // autofocus and no other element is focused.\n    if (options.autofocus == null) {\n      var hasFocus = activeElt();\n      options.autofocus = hasFocus == textarea ||\n        textarea.getAttribute(\"autofocus\") != null && hasFocus == document.body;\n    }\n\n    function save() {textarea.value = cm.getValue();}\n\n    var realSubmit;\n    if (textarea.form) {\n      on(textarea.form, \"submit\", save);\n      // Deplorable hack to make the submit method do the right thing.\n      if (!options.leaveSubmitMethodAlone) {\n        var form = textarea.form;\n        realSubmit = form.submit;\n        try {\n          var wrappedSubmit = form.submit = function () {\n            save();\n            form.submit = realSubmit;\n            form.submit();\n            form.submit = wrappedSubmit;\n          };\n        } catch(e) {}\n      }\n    }\n\n    options.finishInit = function (cm) {\n      cm.save = save;\n      cm.getTextArea = function () { return textarea; };\n      cm.toTextArea = function () {\n        cm.toTextArea = isNaN; // Prevent this from being ran twice\n        save();\n        textarea.parentNode.removeChild(cm.getWrapperElement());\n        textarea.style.display = \"\";\n        if (textarea.form) {\n          off(textarea.form, \"submit\", save);\n          if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == \"function\")\n            { textarea.form.submit = realSubmit; }\n        }\n      };\n    };\n\n    textarea.style.display = \"none\";\n    var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },\n      options);\n    return cm\n  }\n\n  function addLegacyProps(CodeMirror) {\n    CodeMirror.off = off;\n    CodeMirror.on = on;\n    CodeMirror.wheelEventPixels = wheelEventPixels;\n    CodeMirror.Doc = Doc;\n    CodeMirror.splitLines = splitLinesAuto;\n    CodeMirror.countColumn = countColumn;\n    CodeMirror.findColumn = findColumn;\n    CodeMirror.isWordChar = isWordCharBasic;\n    CodeMirror.Pass = Pass;\n    CodeMirror.signal = signal;\n    CodeMirror.Line = Line;\n    CodeMirror.changeEnd = changeEnd;\n    CodeMirror.scrollbarModel = scrollbarModel;\n    CodeMirror.Pos = Pos;\n    CodeMirror.cmpPos = cmp;\n    CodeMirror.modes = modes;\n    CodeMirror.mimeModes = mimeModes;\n    CodeMirror.resolveMode = resolveMode;\n    CodeMirror.getMode = getMode;\n    CodeMirror.modeExtensions = modeExtensions;\n    CodeMirror.extendMode = extendMode;\n    CodeMirror.copyState = copyState;\n    CodeMirror.startState = startState;\n    CodeMirror.innerMode = innerMode;\n    CodeMirror.commands = commands;\n    CodeMirror.keyMap = keyMap;\n    CodeMirror.keyName = keyName;\n    CodeMirror.isModifierKey = isModifierKey;\n    CodeMirror.lookupKey = lookupKey;\n    CodeMirror.normalizeKeyMap = normalizeKeyMap;\n    CodeMirror.StringStream = StringStream;\n    CodeMirror.SharedTextMarker = SharedTextMarker;\n    CodeMirror.TextMarker = TextMarker;\n    CodeMirror.LineWidget = LineWidget;\n    CodeMirror.e_preventDefault = e_preventDefault;\n    CodeMirror.e_stopPropagation = e_stopPropagation;\n    CodeMirror.e_stop = e_stop;\n    CodeMirror.addClass = addClass;\n    CodeMirror.contains = contains;\n    CodeMirror.rmClass = rmClass;\n    CodeMirror.keyNames = keyNames;\n  }\n\n  // EDITOR CONSTRUCTOR\n\n  defineOptions(CodeMirror);\n\n  addEditorMethods(CodeMirror);\n\n  // Set up methods on CodeMirror's prototype to redirect to the editor's document.\n  var dontDelegate = \"iter insert remove copy getEditor constructor\".split(\" \");\n  for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)\n    { CodeMirror.prototype[prop] = (function(method) {\n      return function() {return method.apply(this.doc, arguments)}\n    })(Doc.prototype[prop]); } }\n\n  eventMixin(Doc);\n  CodeMirror.inputStyles = {\"textarea\": TextareaInput, \"contenteditable\": ContentEditableInput};\n\n  // Extra arguments are stored as the mode's dependencies, which is\n  // used by (legacy) mechanisms like loadmode.js to automatically\n  // load a mode. (Preferred mechanism is the require/define calls.)\n  CodeMirror.defineMode = function(name/*, mode, …*/) {\n    if (!CodeMirror.defaults.mode && name != \"null\") { CodeMirror.defaults.mode = name; }\n    defineMode.apply(this, arguments);\n  };\n\n  CodeMirror.defineMIME = defineMIME;\n\n  // Minimal default mode.\n  CodeMirror.defineMode(\"null\", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });\n  CodeMirror.defineMIME(\"text/plain\", \"null\");\n\n  // EXTENSIONS\n\n  CodeMirror.defineExtension = function (name, func) {\n    CodeMirror.prototype[name] = func;\n  };\n  CodeMirror.defineDocExtension = function (name, func) {\n    Doc.prototype[name] = func;\n  };\n\n  CodeMirror.fromTextArea = fromTextArea;\n\n  addLegacyProps(CodeMirror);\n\n  CodeMirror.version = \"5.52.0\";\n\n  return CodeMirror;\n\n})));\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"), require(\"../xml/xml\"), require(\"../meta\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\", \"../xml/xml\", \"../meta\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nCodeMirror.defineMode(\"markdown\", function(cmCfg, modeCfg) {\n\n  var htmlMode = CodeMirror.getMode(cmCfg, \"text/html\");\n  var htmlModeMissing = htmlMode.name == \"null\"\n\n  function getMode(name) {\n    if (CodeMirror.findModeByName) {\n      var found = CodeMirror.findModeByName(name);\n      if (found) name = found.mime || found.mimes[0];\n    }\n    var mode = CodeMirror.getMode(cmCfg, name);\n    return mode.name == \"null\" ? null : mode;\n  }\n\n  // Should characters that affect highlighting be highlighted separate?\n  // Does not include characters that will be output (such as `1.` and `-` for lists)\n  if (modeCfg.highlightFormatting === undefined)\n    modeCfg.highlightFormatting = false;\n\n  // Maximum number of nested blockquotes. Set to 0 for infinite nesting.\n  // Excess `>` will emit `error` token.\n  if (modeCfg.maxBlockquoteDepth === undefined)\n    modeCfg.maxBlockquoteDepth = 0;\n\n  // Turn on task lists? (\"- [ ] \" and \"- [x] \")\n  if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;\n\n  // Turn on strikethrough syntax\n  if (modeCfg.strikethrough === undefined)\n    modeCfg.strikethrough = false;\n\n  if (modeCfg.emoji === undefined)\n    modeCfg.emoji = false;\n\n  if (modeCfg.fencedCodeBlockHighlighting === undefined)\n    modeCfg.fencedCodeBlockHighlighting = true;\n\n  if (modeCfg.xml === undefined)\n    modeCfg.xml = true;\n\n  // Allow token types to be overridden by user-provided token types.\n  if (modeCfg.tokenTypeOverrides === undefined)\n    modeCfg.tokenTypeOverrides = {};\n\n  var tokenTypes = {\n    header: \"header\",\n    code: \"comment\",\n    quote: \"quote\",\n    list1: \"variable-2\",\n    list2: \"variable-3\",\n    list3: \"keyword\",\n    hr: \"hr\",\n    image: \"image\",\n    imageAltText: \"image-alt-text\",\n    imageMarker: \"image-marker\",\n    formatting: \"formatting\",\n    linkInline: \"link\",\n    linkEmail: \"link\",\n    linkText: \"link\",\n    linkHref: \"string\",\n    em: \"em\",\n    strong: \"strong\",\n    strikethrough: \"strikethrough\",\n    emoji: \"builtin\"\n  };\n\n  for (var tokenType in tokenTypes) {\n    if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {\n      tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];\n    }\n  }\n\n  var hrRE = /^([*\\-_])(?:\\s*\\1){2,}\\s*$/\n  ,   listRE = /^(?:[*\\-+]|^[0-9]+([.)]))\\s+/\n  ,   taskListRE = /^\\[(x| )\\](?=\\s)/i // Must follow listRE\n  ,   atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/\n  ,   setextHeaderRE = /^ *(?:\\={1,}|-{1,})\\s*$/\n  ,   textRE = /^[^#!\\[\\]*_\\\\<>` \"'(~:]+/\n  ,   fencedCodeRE = /^(~~~+|```+)[ \\t]*([\\w+#-]*)[^\\n`]*$/\n  ,   linkDefRE = /^\\s*\\[[^\\]]+?\\]:.*$/ // naive link-definition\n  ,   punctuation = /[!\"#$%&'()*+,\\-.\\/:;<=>?@\\[\\\\\\]^_`{|}~\\xA1\\xA7\\xAB\\xB6\\xB7\\xBB\\xBF\\u037E\\u0387\\u055A-\\u055F\\u0589\\u058A\\u05BE\\u05C0\\u05C3\\u05C6\\u05F3\\u05F4\\u0609\\u060A\\u060C\\u060D\\u061B\\u061E\\u061F\\u066A-\\u066D\\u06D4\\u0700-\\u070D\\u07F7-\\u07F9\\u0830-\\u083E\\u085E\\u0964\\u0965\\u0970\\u0AF0\\u0DF4\\u0E4F\\u0E5A\\u0E5B\\u0F04-\\u0F12\\u0F14\\u0F3A-\\u0F3D\\u0F85\\u0FD0-\\u0FD4\\u0FD9\\u0FDA\\u104A-\\u104F\\u10FB\\u1360-\\u1368\\u1400\\u166D\\u166E\\u169B\\u169C\\u16EB-\\u16ED\\u1735\\u1736\\u17D4-\\u17D6\\u17D8-\\u17DA\\u1800-\\u180A\\u1944\\u1945\\u1A1E\\u1A1F\\u1AA0-\\u1AA6\\u1AA8-\\u1AAD\\u1B5A-\\u1B60\\u1BFC-\\u1BFF\\u1C3B-\\u1C3F\\u1C7E\\u1C7F\\u1CC0-\\u1CC7\\u1CD3\\u2010-\\u2027\\u2030-\\u2043\\u2045-\\u2051\\u2053-\\u205E\\u207D\\u207E\\u208D\\u208E\\u2308-\\u230B\\u2329\\u232A\\u2768-\\u2775\\u27C5\\u27C6\\u27E6-\\u27EF\\u2983-\\u2998\\u29D8-\\u29DB\\u29FC\\u29FD\\u2CF9-\\u2CFC\\u2CFE\\u2CFF\\u2D70\\u2E00-\\u2E2E\\u2E30-\\u2E42\\u3001-\\u3003\\u3008-\\u3011\\u3014-\\u301F\\u3030\\u303D\\u30A0\\u30FB\\uA4FE\\uA4FF\\uA60D-\\uA60F\\uA673\\uA67E\\uA6F2-\\uA6F7\\uA874-\\uA877\\uA8CE\\uA8CF\\uA8F8-\\uA8FA\\uA8FC\\uA92E\\uA92F\\uA95F\\uA9C1-\\uA9CD\\uA9DE\\uA9DF\\uAA5C-\\uAA5F\\uAADE\\uAADF\\uAAF0\\uAAF1\\uABEB\\uFD3E\\uFD3F\\uFE10-\\uFE19\\uFE30-\\uFE52\\uFE54-\\uFE61\\uFE63\\uFE68\\uFE6A\\uFE6B\\uFF01-\\uFF03\\uFF05-\\uFF0A\\uFF0C-\\uFF0F\\uFF1A\\uFF1B\\uFF1F\\uFF20\\uFF3B-\\uFF3D\\uFF3F\\uFF5B\\uFF5D\\uFF5F-\\uFF65]|\\uD800[\\uDD00-\\uDD02\\uDF9F\\uDFD0]|\\uD801\\uDD6F|\\uD802[\\uDC57\\uDD1F\\uDD3F\\uDE50-\\uDE58\\uDE7F\\uDEF0-\\uDEF6\\uDF39-\\uDF3F\\uDF99-\\uDF9C]|\\uD804[\\uDC47-\\uDC4D\\uDCBB\\uDCBC\\uDCBE-\\uDCC1\\uDD40-\\uDD43\\uDD74\\uDD75\\uDDC5-\\uDDC9\\uDDCD\\uDDDB\\uDDDD-\\uDDDF\\uDE38-\\uDE3D\\uDEA9]|\\uD805[\\uDCC6\\uDDC1-\\uDDD7\\uDE41-\\uDE43\\uDF3C-\\uDF3E]|\\uD809[\\uDC70-\\uDC74]|\\uD81A[\\uDE6E\\uDE6F\\uDEF5\\uDF37-\\uDF3B\\uDF44]|\\uD82F\\uDC9F|\\uD836[\\uDE87-\\uDE8B]/\n  ,   expandedTab = \"    \" // CommonMark specifies tab as 4 spaces\n\n  function switchInline(stream, state, f) {\n    state.f = state.inline = f;\n    return f(stream, state);\n  }\n\n  function switchBlock(stream, state, f) {\n    state.f = state.block = f;\n    return f(stream, state);\n  }\n\n  function lineIsEmpty(line) {\n    return !line || !/\\S/.test(line.string)\n  }\n\n  // Blocks\n\n  function blankLine(state) {\n    // Reset linkTitle state\n    state.linkTitle = false;\n    state.linkHref = false;\n    state.linkText = false;\n    // Reset EM state\n    state.em = false;\n    // Reset STRONG state\n    state.strong = false;\n    // Reset strikethrough state\n    state.strikethrough = false;\n    // Reset state.quote\n    state.quote = 0;\n    // Reset state.indentedCode\n    state.indentedCode = false;\n    if (state.f == htmlBlock) {\n      var exit = htmlModeMissing\n      if (!exit) {\n        var inner = CodeMirror.innerMode(htmlMode, state.htmlState)\n        exit = inner.mode.name == \"xml\" && inner.state.tagStart === null &&\n          (!inner.state.context && inner.state.tokenize.isInText)\n      }\n      if (exit) {\n        state.f = inlineNormal;\n        state.block = blockNormal;\n        state.htmlState = null;\n      }\n    }\n    // Reset state.trailingSpace\n    state.trailingSpace = 0;\n    state.trailingSpaceNewLine = false;\n    // Mark this line as blank\n    state.prevLine = state.thisLine\n    state.thisLine = {stream: null}\n    return null;\n  }\n\n  function blockNormal(stream, state) {\n    var firstTokenOnLine = stream.column() === state.indentation;\n    var prevLineLineIsEmpty = lineIsEmpty(state.prevLine.stream);\n    var prevLineIsIndentedCode = state.indentedCode;\n    var prevLineIsHr = state.prevLine.hr;\n    var prevLineIsList = state.list !== false;\n    var maxNonCodeIndentation = (state.listStack[state.listStack.length - 1] || 0) + 3;\n\n    state.indentedCode = false;\n\n    var lineIndentation = state.indentation;\n    // compute once per line (on first token)\n    if (state.indentationDiff === null) {\n      state.indentationDiff = state.indentation;\n      if (prevLineIsList) {\n        state.list = null;\n        // While this list item's marker's indentation is less than the deepest\n        //  list item's content's indentation,pop the deepest list item\n        //  indentation off the stack, and update block indentation state\n        while (lineIndentation < state.listStack[state.listStack.length - 1]) {\n          state.listStack.pop();\n          if (state.listStack.length) {\n            state.indentation = state.listStack[state.listStack.length - 1];\n          // less than the first list's indent -> the line is no longer a list\n          } else {\n            state.list = false;\n          }\n        }\n        if (state.list !== false) {\n          state.indentationDiff = lineIndentation - state.listStack[state.listStack.length - 1]\n        }\n      }\n    }\n\n    // not comprehensive (currently only for setext detection purposes)\n    var allowsInlineContinuation = (\n        !prevLineLineIsEmpty && !prevLineIsHr && !state.prevLine.header &&\n        (!prevLineIsList || !prevLineIsIndentedCode) &&\n        !state.prevLine.fencedCodeEnd\n    );\n\n    var isHr = (state.list === false || prevLineIsHr || prevLineLineIsEmpty) &&\n      state.indentation <= maxNonCodeIndentation && stream.match(hrRE);\n\n    var match = null;\n    if (state.indentationDiff >= 4 && (prevLineIsIndentedCode || state.prevLine.fencedCodeEnd ||\n         state.prevLine.header || prevLineLineIsEmpty)) {\n      stream.skipToEnd();\n      state.indentedCode = true;\n      return tokenTypes.code;\n    } else if (stream.eatSpace()) {\n      return null;\n    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(atxHeaderRE)) && match[1].length <= 6) {\n      state.quote = 0;\n      state.header = match[1].length;\n      state.thisLine.header = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      state.f = state.inline;\n      return getType(state);\n    } else if (state.indentation <= maxNonCodeIndentation && stream.eat('>')) {\n      state.quote = firstTokenOnLine ? 1 : state.quote + 1;\n      if (modeCfg.highlightFormatting) state.formatting = \"quote\";\n      stream.eatSpace();\n      return getType(state);\n    } else if (!isHr && !state.setext && firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(listRE))) {\n      var listType = match[1] ? \"ol\" : \"ul\";\n\n      state.indentation = lineIndentation + stream.current().length;\n      state.list = true;\n      state.quote = 0;\n\n      // Add this list item's content's indentation to the stack\n      state.listStack.push(state.indentation);\n      // Reset inline styles which shouldn't propagate aross list items\n      state.em = false;\n      state.strong = false;\n      state.code = false;\n      state.strikethrough = false;\n\n      if (modeCfg.taskLists && stream.match(taskListRE, false)) {\n        state.taskList = true;\n      }\n      state.f = state.inline;\n      if (modeCfg.highlightFormatting) state.formatting = [\"list\", \"list-\" + listType];\n      return getType(state);\n    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(fencedCodeRE, true))) {\n      state.quote = 0;\n      state.fencedEndRE = new RegExp(match[1] + \"+ *$\");\n      // try switching mode\n      state.localMode = modeCfg.fencedCodeBlockHighlighting && getMode(match[2]);\n      if (state.localMode) state.localState = CodeMirror.startState(state.localMode);\n      state.f = state.block = local;\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\n      state.code = -1\n      return getType(state);\n    // SETEXT has lowest block-scope precedence after HR, so check it after\n    //  the others (code, blockquote, list...)\n    } else if (\n      // if setext set, indicates line after ---/===\n      state.setext || (\n        // line before ---/===\n        (!allowsInlineContinuation || !prevLineIsList) && !state.quote && state.list === false &&\n        !state.code && !isHr && !linkDefRE.test(stream.string) &&\n        (match = stream.lookAhead(1)) && (match = match.match(setextHeaderRE))\n      )\n    ) {\n      if ( !state.setext ) {\n        state.header = match[0].charAt(0) == '=' ? 1 : 2;\n        state.setext = state.header;\n      } else {\n        state.header = state.setext;\n        // has no effect on type so we can reset it now\n        state.setext = 0;\n        stream.skipToEnd();\n        if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      }\n      state.thisLine.header = true;\n      state.f = state.inline;\n      return getType(state);\n    } else if (isHr) {\n      stream.skipToEnd();\n      state.hr = true;\n      state.thisLine.hr = true;\n      return tokenTypes.hr;\n    } else if (stream.peek() === '[') {\n      return switchInline(stream, state, footnoteLink);\n    }\n\n    return switchInline(stream, state, state.inline);\n  }\n\n  function htmlBlock(stream, state) {\n    var style = htmlMode.token(stream, state.htmlState);\n    if (!htmlModeMissing) {\n      var inner = CodeMirror.innerMode(htmlMode, state.htmlState)\n      if ((inner.mode.name == \"xml\" && inner.state.tagStart === null &&\n           (!inner.state.context && inner.state.tokenize.isInText)) ||\n          (state.md_inside && stream.current().indexOf(\">\") > -1)) {\n        state.f = inlineNormal;\n        state.block = blockNormal;\n        state.htmlState = null;\n      }\n    }\n    return style;\n  }\n\n  function local(stream, state) {\n    var currListInd = state.listStack[state.listStack.length - 1] || 0;\n    var hasExitedList = state.indentation < currListInd;\n    var maxFencedEndInd = currListInd + 3;\n    if (state.fencedEndRE && state.indentation <= maxFencedEndInd && (hasExitedList || stream.match(state.fencedEndRE))) {\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\n      var returnType;\n      if (!hasExitedList) returnType = getType(state)\n      state.localMode = state.localState = null;\n      state.block = blockNormal;\n      state.f = inlineNormal;\n      state.fencedEndRE = null;\n      state.code = 0\n      state.thisLine.fencedCodeEnd = true;\n      if (hasExitedList) return switchBlock(stream, state, state.block);\n      return returnType;\n    } else if (state.localMode) {\n      return state.localMode.token(stream, state.localState);\n    } else {\n      stream.skipToEnd();\n      return tokenTypes.code;\n    }\n  }\n\n  // Inline\n  function getType(state) {\n    var styles = [];\n\n    if (state.formatting) {\n      styles.push(tokenTypes.formatting);\n\n      if (typeof state.formatting === \"string\") state.formatting = [state.formatting];\n\n      for (var i = 0; i < state.formatting.length; i++) {\n        styles.push(tokenTypes.formatting + \"-\" + state.formatting[i]);\n\n        if (state.formatting[i] === \"header\") {\n          styles.push(tokenTypes.formatting + \"-\" + state.formatting[i] + \"-\" + state.header);\n        }\n\n        // Add `formatting-quote` and `formatting-quote-#` for blockquotes\n        // Add `error` instead if the maximum blockquote nesting depth is passed\n        if (state.formatting[i] === \"quote\") {\n          if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\n            styles.push(tokenTypes.formatting + \"-\" + state.formatting[i] + \"-\" + state.quote);\n          } else {\n            styles.push(\"error\");\n          }\n        }\n      }\n    }\n\n    if (state.taskOpen) {\n      styles.push(\"meta\");\n      return styles.length ? styles.join(' ') : null;\n    }\n    if (state.taskClosed) {\n      styles.push(\"property\");\n      return styles.length ? styles.join(' ') : null;\n    }\n\n    if (state.linkHref) {\n      styles.push(tokenTypes.linkHref, \"url\");\n    } else { // Only apply inline styles to non-url text\n      if (state.strong) { styles.push(tokenTypes.strong); }\n      if (state.em) { styles.push(tokenTypes.em); }\n      if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }\n      if (state.emoji) { styles.push(tokenTypes.emoji); }\n      if (state.linkText) { styles.push(tokenTypes.linkText); }\n      if (state.code) { styles.push(tokenTypes.code); }\n      if (state.image) { styles.push(tokenTypes.image); }\n      if (state.imageAltText) { styles.push(tokenTypes.imageAltText, \"link\"); }\n      if (state.imageMarker) { styles.push(tokenTypes.imageMarker); }\n    }\n\n    if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + \"-\" + state.header); }\n\n    if (state.quote) {\n      styles.push(tokenTypes.quote);\n\n      // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth\n      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\n        styles.push(tokenTypes.quote + \"-\" + state.quote);\n      } else {\n        styles.push(tokenTypes.quote + \"-\" + modeCfg.maxBlockquoteDepth);\n      }\n    }\n\n    if (state.list !== false) {\n      var listMod = (state.listStack.length - 1) % 3;\n      if (!listMod) {\n        styles.push(tokenTypes.list1);\n      } else if (listMod === 1) {\n        styles.push(tokenTypes.list2);\n      } else {\n        styles.push(tokenTypes.list3);\n      }\n    }\n\n    if (state.trailingSpaceNewLine) {\n      styles.push(\"trailing-space-new-line\");\n    } else if (state.trailingSpace) {\n      styles.push(\"trailing-space-\" + (state.trailingSpace % 2 ? \"a\" : \"b\"));\n    }\n\n    return styles.length ? styles.join(' ') : null;\n  }\n\n  function handleText(stream, state) {\n    if (stream.match(textRE, true)) {\n      return getType(state);\n    }\n    return undefined;\n  }\n\n  function inlineNormal(stream, state) {\n    var style = state.text(stream, state);\n    if (typeof style !== 'undefined')\n      return style;\n\n    if (state.list) { // List marker (*, +, -, 1., etc)\n      state.list = null;\n      return getType(state);\n    }\n\n    if (state.taskList) {\n      var taskOpen = stream.match(taskListRE, true)[1] === \" \";\n      if (taskOpen) state.taskOpen = true;\n      else state.taskClosed = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"task\";\n      state.taskList = false;\n      return getType(state);\n    }\n\n    state.taskOpen = false;\n    state.taskClosed = false;\n\n    if (state.header && stream.match(/^#+$/, true)) {\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\n      return getType(state);\n    }\n\n    var ch = stream.next();\n\n    // Matches link titles present on next line\n    if (state.linkTitle) {\n      state.linkTitle = false;\n      var matchCh = ch;\n      if (ch === '(') {\n        matchCh = ')';\n      }\n      matchCh = (matchCh+'').replace(/([.?*+^\\[\\]\\\\(){}|-])/g, \"\\\\$1\");\n      var regex = '^\\\\s*(?:[^' + matchCh + '\\\\\\\\]+|\\\\\\\\\\\\\\\\|\\\\\\\\.)' + matchCh;\n      if (stream.match(new RegExp(regex), true)) {\n        return tokenTypes.linkHref;\n      }\n    }\n\n    // If this block is changed, it may need to be updated in GFM mode\n    if (ch === '`') {\n      var previousFormatting = state.formatting;\n      if (modeCfg.highlightFormatting) state.formatting = \"code\";\n      stream.eatWhile('`');\n      var count = stream.current().length\n      if (state.code == 0 && (!state.quote || count == 1)) {\n        state.code = count\n        return getType(state)\n      } else if (count == state.code) { // Must be exact\n        var t = getType(state)\n        state.code = 0\n        return t\n      } else {\n        state.formatting = previousFormatting\n        return getType(state)\n      }\n    } else if (state.code) {\n      return getType(state);\n    }\n\n    if (ch === '\\\\') {\n      stream.next();\n      if (modeCfg.highlightFormatting) {\n        var type = getType(state);\n        var formattingEscape = tokenTypes.formatting + \"-escape\";\n        return type ? type + \" \" + formattingEscape : formattingEscape;\n      }\n    }\n\n    if (ch === '!' && stream.match(/\\[[^\\]]*\\] ?(?:\\(|\\[)/, false)) {\n      state.imageMarker = true;\n      state.image = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      return getType(state);\n    }\n\n    if (ch === '[' && state.imageMarker && stream.match(/[^\\]]*\\](\\(.*?\\)| ?\\[.*?\\])/, false)) {\n      state.imageMarker = false;\n      state.imageAltText = true\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      return getType(state);\n    }\n\n    if (ch === ']' && state.imageAltText) {\n      if (modeCfg.highlightFormatting) state.formatting = \"image\";\n      var type = getType(state);\n      state.imageAltText = false;\n      state.image = false;\n      state.inline = state.f = linkHref;\n      return type;\n    }\n\n    if (ch === '[' && !state.image) {\n      if (state.linkText && stream.match(/^.*?\\]/)) return getType(state)\n      state.linkText = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      return getType(state);\n    }\n\n    if (ch === ']' && state.linkText) {\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      state.linkText = false;\n      state.inline = state.f = stream.match(/\\(.*?\\)| ?\\[.*?\\]/, false) ? linkHref : inlineNormal\n      return type;\n    }\n\n    if (ch === '<' && stream.match(/^(https?|ftps?):\\/\\/(?:[^\\\\>]|\\\\.)+>/, false)) {\n      state.f = state.inline = linkInline;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkInline;\n    }\n\n    if (ch === '<' && stream.match(/^[^> \\\\]+@(?:[^\\\\>]|\\\\.)+>/, false)) {\n      state.f = state.inline = linkInline;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkEmail;\n    }\n\n    if (modeCfg.xml && ch === '<' && stream.match(/^(!--|\\?|!\\[CDATA\\[|[a-z][a-z0-9-]*(?:\\s+[a-z_:.\\-]+(?:\\s*=\\s*[^>]+)?)*\\s*(?:>|$))/i, false)) {\n      var end = stream.string.indexOf(\">\", stream.pos);\n      if (end != -1) {\n        var atts = stream.string.substring(stream.start, end);\n        if (/markdown\\s*=\\s*('|\"){0,1}1('|\"){0,1}/.test(atts)) state.md_inside = true;\n      }\n      stream.backUp(1);\n      state.htmlState = CodeMirror.startState(htmlMode);\n      return switchBlock(stream, state, htmlBlock);\n    }\n\n    if (modeCfg.xml && ch === '<' && stream.match(/^\\/\\w*?>/)) {\n      state.md_inside = false;\n      return \"tag\";\n    } else if (ch === \"*\" || ch === \"_\") {\n      var len = 1, before = stream.pos == 1 ? \" \" : stream.string.charAt(stream.pos - 2)\n      while (len < 3 && stream.eat(ch)) len++\n      var after = stream.peek() || \" \"\n      // See http://spec.commonmark.org/0.27/#emphasis-and-strong-emphasis\n      var leftFlanking = !/\\s/.test(after) && (!punctuation.test(after) || /\\s/.test(before) || punctuation.test(before))\n      var rightFlanking = !/\\s/.test(before) && (!punctuation.test(before) || /\\s/.test(after) || punctuation.test(after))\n      var setEm = null, setStrong = null\n      if (len % 2) { // Em\n        if (!state.em && leftFlanking && (ch === \"*\" || !rightFlanking || punctuation.test(before)))\n          setEm = true\n        else if (state.em == ch && rightFlanking && (ch === \"*\" || !leftFlanking || punctuation.test(after)))\n          setEm = false\n      }\n      if (len > 1) { // Strong\n        if (!state.strong && leftFlanking && (ch === \"*\" || !rightFlanking || punctuation.test(before)))\n          setStrong = true\n        else if (state.strong == ch && rightFlanking && (ch === \"*\" || !leftFlanking || punctuation.test(after)))\n          setStrong = false\n      }\n      if (setStrong != null || setEm != null) {\n        if (modeCfg.highlightFormatting) state.formatting = setEm == null ? \"strong\" : setStrong == null ? \"em\" : \"strong em\"\n        if (setEm === true) state.em = ch\n        if (setStrong === true) state.strong = ch\n        var t = getType(state)\n        if (setEm === false) state.em = false\n        if (setStrong === false) state.strong = false\n        return t\n      }\n    } else if (ch === ' ') {\n      if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces\n        if (stream.peek() === ' ') { // Surrounded by spaces, ignore\n          return getType(state);\n        } else { // Not surrounded by spaces, back up pointer\n          stream.backUp(1);\n        }\n      }\n    }\n\n    if (modeCfg.strikethrough) {\n      if (ch === '~' && stream.eatWhile(ch)) {\n        if (state.strikethrough) {// Remove strikethrough\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\n          var t = getType(state);\n          state.strikethrough = false;\n          return t;\n        } else if (stream.match(/^[^\\s]/, false)) {// Add strikethrough\n          state.strikethrough = true;\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\n          return getType(state);\n        }\n      } else if (ch === ' ') {\n        if (stream.match(/^~~/, true)) { // Probably surrounded by space\n          if (stream.peek() === ' ') { // Surrounded by spaces, ignore\n            return getType(state);\n          } else { // Not surrounded by spaces, back up pointer\n            stream.backUp(2);\n          }\n        }\n      }\n    }\n\n    if (modeCfg.emoji && ch === \":\" && stream.match(/^(?:[a-z_\\d+][a-z_\\d+-]*|\\-[a-z_\\d+][a-z_\\d+-]*):/)) {\n      state.emoji = true;\n      if (modeCfg.highlightFormatting) state.formatting = \"emoji\";\n      var retType = getType(state);\n      state.emoji = false;\n      return retType;\n    }\n\n    if (ch === ' ') {\n      if (stream.match(/^ +$/, false)) {\n        state.trailingSpace++;\n      } else if (state.trailingSpace) {\n        state.trailingSpaceNewLine = true;\n      }\n    }\n\n    return getType(state);\n  }\n\n  function linkInline(stream, state) {\n    var ch = stream.next();\n\n    if (ch === \">\") {\n      state.f = state.inline = inlineNormal;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var type = getType(state);\n      if (type){\n        type += \" \";\n      } else {\n        type = \"\";\n      }\n      return type + tokenTypes.linkInline;\n    }\n\n    stream.match(/^[^>]+/, true);\n\n    return tokenTypes.linkInline;\n  }\n\n  function linkHref(stream, state) {\n    // Check if space, and return NULL if so (to avoid marking the space)\n    if(stream.eatSpace()){\n      return null;\n    }\n    var ch = stream.next();\n    if (ch === '(' || ch === '[') {\n      state.f = state.inline = getLinkHrefInside(ch === \"(\" ? \")\" : \"]\");\n      if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\n      state.linkHref = true;\n      return getType(state);\n    }\n    return 'error';\n  }\n\n  var linkRE = {\n    \")\": /^(?:[^\\\\\\(\\)]|\\\\.|\\((?:[^\\\\\\(\\)]|\\\\.)*\\))*?(?=\\))/,\n    \"]\": /^(?:[^\\\\\\[\\]]|\\\\.|\\[(?:[^\\\\\\[\\]]|\\\\.)*\\])*?(?=\\])/\n  }\n\n  function getLinkHrefInside(endChar) {\n    return function(stream, state) {\n      var ch = stream.next();\n\n      if (ch === endChar) {\n        state.f = state.inline = inlineNormal;\n        if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\n        var returnState = getType(state);\n        state.linkHref = false;\n        return returnState;\n      }\n\n      stream.match(linkRE[endChar])\n      state.linkHref = true;\n      return getType(state);\n    };\n  }\n\n  function footnoteLink(stream, state) {\n    if (stream.match(/^([^\\]\\\\]|\\\\.)*\\]:/, false)) {\n      state.f = footnoteLinkInside;\n      stream.next(); // Consume [\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      state.linkText = true;\n      return getType(state);\n    }\n    return switchInline(stream, state, inlineNormal);\n  }\n\n  function footnoteLinkInside(stream, state) {\n    if (stream.match(/^\\]:/, true)) {\n      state.f = state.inline = footnoteUrl;\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\n      var returnType = getType(state);\n      state.linkText = false;\n      return returnType;\n    }\n\n    stream.match(/^([^\\]\\\\]|\\\\.)+/, true);\n\n    return tokenTypes.linkText;\n  }\n\n  function footnoteUrl(stream, state) {\n    // Check if space, and return NULL if so (to avoid marking the space)\n    if(stream.eatSpace()){\n      return null;\n    }\n    // Match URL\n    stream.match(/^[^\\s]+/, true);\n    // Check for link title\n    if (stream.peek() === undefined) { // End of line, set flag to check next line\n      state.linkTitle = true;\n    } else { // More content on line, check if link title\n      stream.match(/^(?:\\s+(?:\"(?:[^\"\\\\]|\\\\\\\\|\\\\.)+\"|'(?:[^'\\\\]|\\\\\\\\|\\\\.)+'|\\((?:[^)\\\\]|\\\\\\\\|\\\\.)+\\)))?/, true);\n    }\n    state.f = state.inline = inlineNormal;\n    return tokenTypes.linkHref + \" url\";\n  }\n\n  var mode = {\n    startState: function() {\n      return {\n        f: blockNormal,\n\n        prevLine: {stream: null},\n        thisLine: {stream: null},\n\n        block: blockNormal,\n        htmlState: null,\n        indentation: 0,\n\n        inline: inlineNormal,\n        text: handleText,\n\n        formatting: false,\n        linkText: false,\n        linkHref: false,\n        linkTitle: false,\n        code: 0,\n        em: false,\n        strong: false,\n        header: 0,\n        setext: 0,\n        hr: false,\n        taskList: false,\n        list: false,\n        listStack: [],\n        quote: 0,\n        trailingSpace: 0,\n        trailingSpaceNewLine: false,\n        strikethrough: false,\n        emoji: false,\n        fencedEndRE: null\n      };\n    },\n\n    copyState: function(s) {\n      return {\n        f: s.f,\n\n        prevLine: s.prevLine,\n        thisLine: s.thisLine,\n\n        block: s.block,\n        htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),\n        indentation: s.indentation,\n\n        localMode: s.localMode,\n        localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,\n\n        inline: s.inline,\n        text: s.text,\n        formatting: false,\n        linkText: s.linkText,\n        linkTitle: s.linkTitle,\n        linkHref: s.linkHref,\n        code: s.code,\n        em: s.em,\n        strong: s.strong,\n        strikethrough: s.strikethrough,\n        emoji: s.emoji,\n        header: s.header,\n        setext: s.setext,\n        hr: s.hr,\n        taskList: s.taskList,\n        list: s.list,\n        listStack: s.listStack.slice(0),\n        quote: s.quote,\n        indentedCode: s.indentedCode,\n        trailingSpace: s.trailingSpace,\n        trailingSpaceNewLine: s.trailingSpaceNewLine,\n        md_inside: s.md_inside,\n        fencedEndRE: s.fencedEndRE\n      };\n    },\n\n    token: function(stream, state) {\n\n      // Reset state.formatting\n      state.formatting = false;\n\n      if (stream != state.thisLine.stream) {\n        state.header = 0;\n        state.hr = false;\n\n        if (stream.match(/^\\s*$/, true)) {\n          blankLine(state);\n          return null;\n        }\n\n        state.prevLine = state.thisLine\n        state.thisLine = {stream: stream}\n\n        // Reset state.taskList\n        state.taskList = false;\n\n        // Reset state.trailingSpace\n        state.trailingSpace = 0;\n        state.trailingSpaceNewLine = false;\n\n        if (!state.localState) {\n          state.f = state.block;\n          if (state.f != htmlBlock) {\n            var indentation = stream.match(/^\\s*/, true)[0].replace(/\\t/g, expandedTab).length;\n            state.indentation = indentation;\n            state.indentationDiff = null;\n            if (indentation > 0) return null;\n          }\n        }\n      }\n      return state.f(stream, state);\n    },\n\n    innerMode: function(state) {\n      if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};\n      if (state.localState) return {state: state.localState, mode: state.localMode};\n      return {state: state, mode: mode};\n    },\n\n    indent: function(state, textAfter, line) {\n      if (state.block == htmlBlock && htmlMode.indent) return htmlMode.indent(state.htmlState, textAfter, line)\n      if (state.localState && state.localMode.indent) return state.localMode.indent(state.localState, textAfter, line)\n      return CodeMirror.Pass\n    },\n\n    blankLine: blankLine,\n\n    getType: getType,\n\n    blockCommentStart: \"<!--\",\n    blockCommentEnd: \"-->\",\n    closeBrackets: \"()[]{}''\\\"\\\"``\",\n    fold: \"markdown\"\n  };\n  return mode;\n}, \"xml\");\n\nCodeMirror.defineMIME(\"text/markdown\", \"markdown\");\n\nCodeMirror.defineMIME(\"text/x-markdown\", \"markdown\");\n\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n  \"use strict\";\n\n  CodeMirror.modeInfo = [\n    {name: \"APL\", mime: \"text/apl\", mode: \"apl\", ext: [\"dyalog\", \"apl\"]},\n    {name: \"PGP\", mimes: [\"application/pgp\", \"application/pgp-encrypted\", \"application/pgp-keys\", \"application/pgp-signature\"], mode: \"asciiarmor\", ext: [\"asc\", \"pgp\", \"sig\"]},\n    {name: \"ASN.1\", mime: \"text/x-ttcn-asn\", mode: \"asn.1\", ext: [\"asn\", \"asn1\"]},\n    {name: \"Asterisk\", mime: \"text/x-asterisk\", mode: \"asterisk\", file: /^extensions\\.conf$/i},\n    {name: \"Brainfuck\", mime: \"text/x-brainfuck\", mode: \"brainfuck\", ext: [\"b\", \"bf\"]},\n    {name: \"C\", mime: \"text/x-csrc\", mode: \"clike\", ext: [\"c\", \"h\", \"ino\"]},\n    {name: \"C++\", mime: \"text/x-c++src\", mode: \"clike\", ext: [\"cpp\", \"c++\", \"cc\", \"cxx\", \"hpp\", \"h++\", \"hh\", \"hxx\"], alias: [\"cpp\"]},\n    {name: \"Cobol\", mime: \"text/x-cobol\", mode: \"cobol\", ext: [\"cob\", \"cpy\"]},\n    {name: \"C#\", mime: \"text/x-csharp\", mode: \"clike\", ext: [\"cs\"], alias: [\"csharp\", \"cs\"]},\n    {name: \"Clojure\", mime: \"text/x-clojure\", mode: \"clojure\", ext: [\"clj\", \"cljc\", \"cljx\"]},\n    {name: \"ClojureScript\", mime: \"text/x-clojurescript\", mode: \"clojure\", ext: [\"cljs\"]},\n    {name: \"Closure Stylesheets (GSS)\", mime: \"text/x-gss\", mode: \"css\", ext: [\"gss\"]},\n    {name: \"CMake\", mime: \"text/x-cmake\", mode: \"cmake\", ext: [\"cmake\", \"cmake.in\"], file: /^CMakeLists.txt$/},\n    {name: \"CoffeeScript\", mimes: [\"application/vnd.coffeescript\", \"text/coffeescript\", \"text/x-coffeescript\"], mode: \"coffeescript\", ext: [\"coffee\"], alias: [\"coffee\", \"coffee-script\"]},\n    {name: \"Common Lisp\", mime: \"text/x-common-lisp\", mode: \"commonlisp\", ext: [\"cl\", \"lisp\", \"el\"], alias: [\"lisp\"]},\n    {name: \"Cypher\", mime: \"application/x-cypher-query\", mode: \"cypher\", ext: [\"cyp\", \"cypher\"]},\n    {name: \"Cython\", mime: \"text/x-cython\", mode: \"python\", ext: [\"pyx\", \"pxd\", \"pxi\"]},\n    {name: \"Crystal\", mime: \"text/x-crystal\", mode: \"crystal\", ext: [\"cr\"]},\n    {name: \"CSS\", mime: \"text/css\", mode: \"css\", ext: [\"css\"]},\n    {name: \"CQL\", mime: \"text/x-cassandra\", mode: \"sql\", ext: [\"cql\"]},\n    {name: \"D\", mime: \"text/x-d\", mode: \"d\", ext: [\"d\"]},\n    {name: \"Dart\", mimes: [\"application/dart\", \"text/x-dart\"], mode: \"dart\", ext: [\"dart\"]},\n    {name: \"diff\", mime: \"text/x-diff\", mode: \"diff\", ext: [\"diff\", \"patch\"]},\n    {name: \"Django\", mime: \"text/x-django\", mode: \"django\"},\n    {name: \"Dockerfile\", mime: \"text/x-dockerfile\", mode: \"dockerfile\", file: /^Dockerfile$/},\n    {name: \"DTD\", mime: \"application/xml-dtd\", mode: \"dtd\", ext: [\"dtd\"]},\n    {name: \"Dylan\", mime: \"text/x-dylan\", mode: \"dylan\", ext: [\"dylan\", \"dyl\", \"intr\"]},\n    {name: \"EBNF\", mime: \"text/x-ebnf\", mode: \"ebnf\"},\n    {name: \"ECL\", mime: \"text/x-ecl\", mode: \"ecl\", ext: [\"ecl\"]},\n    {name: \"edn\", mime: \"application/edn\", mode: \"clojure\", ext: [\"edn\"]},\n    {name: \"Eiffel\", mime: \"text/x-eiffel\", mode: \"eiffel\", ext: [\"e\"]},\n    {name: \"Elm\", mime: \"text/x-elm\", mode: \"elm\", ext: [\"elm\"]},\n    {name: \"Embedded Javascript\", mime: \"application/x-ejs\", mode: \"htmlembedded\", ext: [\"ejs\"]},\n    {name: \"Embedded Ruby\", mime: \"application/x-erb\", mode: \"htmlembedded\", ext: [\"erb\"]},\n    {name: \"Erlang\", mime: \"text/x-erlang\", mode: \"erlang\", ext: [\"erl\"]},\n    {name: \"Esper\", mime: \"text/x-esper\", mode: \"sql\"},\n    {name: \"Factor\", mime: \"text/x-factor\", mode: \"factor\", ext: [\"factor\"]},\n    {name: \"FCL\", mime: \"text/x-fcl\", mode: \"fcl\"},\n    {name: \"Forth\", mime: \"text/x-forth\", mode: \"forth\", ext: [\"forth\", \"fth\", \"4th\"]},\n    {name: \"Fortran\", mime: \"text/x-fortran\", mode: \"fortran\", ext: [\"f\", \"for\", \"f77\", \"f90\", \"f95\"]},\n    {name: \"F#\", mime: \"text/x-fsharp\", mode: \"mllike\", ext: [\"fs\"], alias: [\"fsharp\"]},\n    {name: \"Gas\", mime: \"text/x-gas\", mode: \"gas\", ext: [\"s\"]},\n    {name: \"Gherkin\", mime: \"text/x-feature\", mode: \"gherkin\", ext: [\"feature\"]},\n    {name: \"GitHub Flavored Markdown\", mime: \"text/x-gfm\", mode: \"gfm\", file: /^(readme|contributing|history).md$/i},\n    {name: \"Go\", mime: \"text/x-go\", mode: \"go\", ext: [\"go\"]},\n    {name: \"Groovy\", mime: \"text/x-groovy\", mode: \"groovy\", ext: [\"groovy\", \"gradle\"], file: /^Jenkinsfile$/},\n    {name: \"HAML\", mime: \"text/x-haml\", mode: \"haml\", ext: [\"haml\"]},\n    {name: \"Haskell\", mime: \"text/x-haskell\", mode: \"haskell\", ext: [\"hs\"]},\n    {name: \"Haskell (Literate)\", mime: \"text/x-literate-haskell\", mode: \"haskell-literate\", ext: [\"lhs\"]},\n    {name: \"Haxe\", mime: \"text/x-haxe\", mode: \"haxe\", ext: [\"hx\"]},\n    {name: \"HXML\", mime: \"text/x-hxml\", mode: \"haxe\", ext: [\"hxml\"]},\n    {name: \"ASP.NET\", mime: \"application/x-aspx\", mode: \"htmlembedded\", ext: [\"aspx\"], alias: [\"asp\", \"aspx\"]},\n    {name: \"HTML\", mime: \"text/html\", mode: \"htmlmixed\", ext: [\"html\", \"htm\", \"handlebars\", \"hbs\"], alias: [\"xhtml\"]},\n    {name: \"HTTP\", mime: \"message/http\", mode: \"http\"},\n    {name: \"IDL\", mime: \"text/x-idl\", mode: \"idl\", ext: [\"pro\"]},\n    {name: \"Pug\", mime: \"text/x-pug\", mode: \"pug\", ext: [\"jade\", \"pug\"], alias: [\"jade\"]},\n    {name: \"Java\", mime: \"text/x-java\", mode: \"clike\", ext: [\"java\"]},\n    {name: \"Java Server Pages\", mime: \"application/x-jsp\", mode: \"htmlembedded\", ext: [\"jsp\"], alias: [\"jsp\"]},\n    {name: \"JavaScript\", mimes: [\"text/javascript\", \"text/ecmascript\", \"application/javascript\", \"application/x-javascript\", \"application/ecmascript\"],\n     mode: \"javascript\", ext: [\"js\"], alias: [\"ecmascript\", \"js\", \"node\"]},\n    {name: \"JSON\", mimes: [\"application/json\", \"application/x-json\"], mode: \"javascript\", ext: [\"json\", \"map\"], alias: [\"json5\"]},\n    {name: \"JSON-LD\", mime: \"application/ld+json\", mode: \"javascript\", ext: [\"jsonld\"], alias: [\"jsonld\"]},\n    {name: \"JSX\", mime: \"text/jsx\", mode: \"jsx\", ext: [\"jsx\"]},\n    {name: \"Jinja2\", mime: \"text/jinja2\", mode: \"jinja2\", ext: [\"j2\", \"jinja\", \"jinja2\"]},\n    {name: \"Julia\", mime: \"text/x-julia\", mode: \"julia\", ext: [\"jl\"]},\n    {name: \"Kotlin\", mime: \"text/x-kotlin\", mode: \"clike\", ext: [\"kt\"]},\n    {name: \"LESS\", mime: \"text/x-less\", mode: \"css\", ext: [\"less\"]},\n    {name: \"LiveScript\", mime: \"text/x-livescript\", mode: \"livescript\", ext: [\"ls\"], alias: [\"ls\"]},\n    {name: \"Lua\", mime: \"text/x-lua\", mode: \"lua\", ext: [\"lua\"]},\n    {name: \"Markdown\", mime: \"text/x-markdown\", mode: \"markdown\", ext: [\"markdown\", \"md\", \"mkd\"]},\n    {name: \"mIRC\", mime: \"text/mirc\", mode: \"mirc\"},\n    {name: \"MariaDB SQL\", mime: \"text/x-mariadb\", mode: \"sql\"},\n    {name: \"Mathematica\", mime: \"text/x-mathematica\", mode: \"mathematica\", ext: [\"m\", \"nb\", \"wl\", \"wls\"]},\n    {name: \"Modelica\", mime: \"text/x-modelica\", mode: \"modelica\", ext: [\"mo\"]},\n    {name: \"MUMPS\", mime: \"text/x-mumps\", mode: \"mumps\", ext: [\"mps\"]},\n    {name: \"MS SQL\", mime: \"text/x-mssql\", mode: \"sql\"},\n    {name: \"mbox\", mime: \"application/mbox\", mode: \"mbox\", ext: [\"mbox\"]},\n    {name: \"MySQL\", mime: \"text/x-mysql\", mode: \"sql\"},\n    {name: \"Nginx\", mime: \"text/x-nginx-conf\", mode: \"nginx\", file: /nginx.*\\.conf$/i},\n    {name: \"NSIS\", mime: \"text/x-nsis\", mode: \"nsis\", ext: [\"nsh\", \"nsi\"]},\n    {name: \"NTriples\", mimes: [\"application/n-triples\", \"application/n-quads\", \"text/n-triples\"],\n     mode: \"ntriples\", ext: [\"nt\", \"nq\"]},\n    {name: \"Objective-C\", mime: \"text/x-objectivec\", mode: \"clike\", ext: [\"m\"], alias: [\"objective-c\", \"objc\"]},\n    {name: \"Objective-C++\", mime: \"text/x-objectivec++\", mode: \"clike\", ext: [\"mm\"], alias: [\"objective-c++\", \"objc++\"]},\n    {name: \"OCaml\", mime: \"text/x-ocaml\", mode: \"mllike\", ext: [\"ml\", \"mli\", \"mll\", \"mly\"]},\n    {name: \"Octave\", mime: \"text/x-octave\", mode: \"octave\", ext: [\"m\"]},\n    {name: \"Oz\", mime: \"text/x-oz\", mode: \"oz\", ext: [\"oz\"]},\n    {name: \"Pascal\", mime: \"text/x-pascal\", mode: \"pascal\", ext: [\"p\", \"pas\"]},\n    {name: \"PEG.js\", mime: \"null\", mode: \"pegjs\", ext: [\"jsonld\"]},\n    {name: \"Perl\", mime: \"text/x-perl\", mode: \"perl\", ext: [\"pl\", \"pm\"]},\n    {name: \"PHP\", mimes: [\"text/x-php\", \"application/x-httpd-php\", \"application/x-httpd-php-open\"], mode: \"php\", ext: [\"php\", \"php3\", \"php4\", \"php5\", \"php7\", \"phtml\"]},\n    {name: \"Pig\", mime: \"text/x-pig\", mode: \"pig\", ext: [\"pig\"]},\n    {name: \"Plain Text\", mime: \"text/plain\", mode: \"null\", ext: [\"txt\", \"text\", \"conf\", \"def\", \"list\", \"log\"]},\n    {name: \"PLSQL\", mime: \"text/x-plsql\", mode: \"sql\", ext: [\"pls\"]},\n    {name: \"PostgreSQL\", mime: \"text/x-pgsql\", mode: \"sql\"},\n    {name: \"PowerShell\", mime: \"application/x-powershell\", mode: \"powershell\", ext: [\"ps1\", \"psd1\", \"psm1\"]},\n    {name: \"Properties files\", mime: \"text/x-properties\", mode: \"properties\", ext: [\"properties\", \"ini\", \"in\"], alias: [\"ini\", \"properties\"]},\n    {name: \"ProtoBuf\", mime: \"text/x-protobuf\", mode: \"protobuf\", ext: [\"proto\"]},\n    {name: \"Python\", mime: \"text/x-python\", mode: \"python\", ext: [\"BUILD\", \"bzl\", \"py\", \"pyw\"], file: /^(BUCK|BUILD)$/},\n    {name: \"Puppet\", mime: \"text/x-puppet\", mode: \"puppet\", ext: [\"pp\"]},\n    {name: \"Q\", mime: \"text/x-q\", mode: \"q\", ext: [\"q\"]},\n    {name: \"R\", mime: \"text/x-rsrc\", mode: \"r\", ext: [\"r\", \"R\"], alias: [\"rscript\"]},\n    {name: \"reStructuredText\", mime: \"text/x-rst\", mode: \"rst\", ext: [\"rst\"], alias: [\"rst\"]},\n    {name: \"RPM Changes\", mime: \"text/x-rpm-changes\", mode: \"rpm\"},\n    {name: \"RPM Spec\", mime: \"text/x-rpm-spec\", mode: \"rpm\", ext: [\"spec\"]},\n    {name: \"Ruby\", mime: \"text/x-ruby\", mode: \"ruby\", ext: [\"rb\"], alias: [\"jruby\", \"macruby\", \"rake\", \"rb\", \"rbx\"]},\n    {name: \"Rust\", mime: \"text/x-rustsrc\", mode: \"rust\", ext: [\"rs\"]},\n    {name: \"SAS\", mime: \"text/x-sas\", mode: \"sas\", ext: [\"sas\"]},\n    {name: \"Sass\", mime: \"text/x-sass\", mode: \"sass\", ext: [\"sass\"]},\n    {name: \"Scala\", mime: \"text/x-scala\", mode: \"clike\", ext: [\"scala\"]},\n    {name: \"Scheme\", mime: \"text/x-scheme\", mode: \"scheme\", ext: [\"scm\", \"ss\"]},\n    {name: \"SCSS\", mime: \"text/x-scss\", mode: \"css\", ext: [\"scss\"]},\n    {name: \"Shell\", mimes: [\"text/x-sh\", \"application/x-sh\"], mode: \"shell\", ext: [\"sh\", \"ksh\", \"bash\"], alias: [\"bash\", \"sh\", \"zsh\"], file: /^PKGBUILD$/},\n    {name: \"Sieve\", mime: \"application/sieve\", mode: \"sieve\", ext: [\"siv\", \"sieve\"]},\n    {name: \"Slim\", mimes: [\"text/x-slim\", \"application/x-slim\"], mode: \"slim\", ext: [\"slim\"]},\n    {name: \"Smalltalk\", mime: \"text/x-stsrc\", mode: \"smalltalk\", ext: [\"st\"]},\n    {name: \"Smarty\", mime: \"text/x-smarty\", mode: \"smarty\", ext: [\"tpl\"]},\n    {name: \"Solr\", mime: \"text/x-solr\", mode: \"solr\"},\n    {name: \"SML\", mime: \"text/x-sml\", mode: \"mllike\", ext: [\"sml\", \"sig\", \"fun\", \"smackspec\"]},\n    {name: \"Soy\", mime: \"text/x-soy\", mode: \"soy\", ext: [\"soy\"], alias: [\"closure template\"]},\n    {name: \"SPARQL\", mime: \"application/sparql-query\", mode: \"sparql\", ext: [\"rq\", \"sparql\"], alias: [\"sparul\"]},\n    {name: \"Spreadsheet\", mime: \"text/x-spreadsheet\", mode: \"spreadsheet\", alias: [\"excel\", \"formula\"]},\n    {name: \"SQL\", mime: \"text/x-sql\", mode: \"sql\", ext: [\"sql\"]},\n    {name: \"SQLite\", mime: \"text/x-sqlite\", mode: \"sql\"},\n    {name: \"Squirrel\", mime: \"text/x-squirrel\", mode: \"clike\", ext: [\"nut\"]},\n    {name: \"Stylus\", mime: \"text/x-styl\", mode: \"stylus\", ext: [\"styl\"]},\n    {name: \"Swift\", mime: \"text/x-swift\", mode: \"swift\", ext: [\"swift\"]},\n    {name: \"sTeX\", mime: \"text/x-stex\", mode: \"stex\"},\n    {name: \"LaTeX\", mime: \"text/x-latex\", mode: \"stex\", ext: [\"text\", \"ltx\", \"tex\"], alias: [\"tex\"]},\n    {name: \"SystemVerilog\", mime: \"text/x-systemverilog\", mode: \"verilog\", ext: [\"v\", \"sv\", \"svh\"]},\n    {name: \"Tcl\", mime: \"text/x-tcl\", mode: \"tcl\", ext: [\"tcl\"]},\n    {name: \"Textile\", mime: \"text/x-textile\", mode: \"textile\", ext: [\"textile\"]},\n    {name: \"TiddlyWiki \", mime: \"text/x-tiddlywiki\", mode: \"tiddlywiki\"},\n    {name: \"Tiki wiki\", mime: \"text/tiki\", mode: \"tiki\"},\n    {name: \"TOML\", mime: \"text/x-toml\", mode: \"toml\", ext: [\"toml\"]},\n    {name: \"Tornado\", mime: \"text/x-tornado\", mode: \"tornado\"},\n    {name: \"troff\", mime: \"text/troff\", mode: \"troff\", ext: [\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\"]},\n    {name: \"TTCN\", mime: \"text/x-ttcn\", mode: \"ttcn\", ext: [\"ttcn\", \"ttcn3\", \"ttcnpp\"]},\n    {name: \"TTCN_CFG\", mime: \"text/x-ttcn-cfg\", mode: \"ttcn-cfg\", ext: [\"cfg\"]},\n    {name: \"Turtle\", mime: \"text/turtle\", mode: \"turtle\", ext: [\"ttl\"]},\n    {name: \"TypeScript\", mime: \"application/typescript\", mode: \"javascript\", ext: [\"ts\"], alias: [\"ts\"]},\n    {name: \"TypeScript-JSX\", mime: \"text/typescript-jsx\", mode: \"jsx\", ext: [\"tsx\"], alias: [\"tsx\"]},\n    {name: \"Twig\", mime: \"text/x-twig\", mode: \"twig\"},\n    {name: \"Web IDL\", mime: \"text/x-webidl\", mode: \"webidl\", ext: [\"webidl\"]},\n    {name: \"VB.NET\", mime: \"text/x-vb\", mode: \"vb\", ext: [\"vb\"]},\n    {name: \"VBScript\", mime: \"text/vbscript\", mode: \"vbscript\", ext: [\"vbs\"]},\n    {name: \"Velocity\", mime: \"text/velocity\", mode: \"velocity\", ext: [\"vtl\"]},\n    {name: \"Verilog\", mime: \"text/x-verilog\", mode: \"verilog\", ext: [\"v\"]},\n    {name: \"VHDL\", mime: \"text/x-vhdl\", mode: \"vhdl\", ext: [\"vhd\", \"vhdl\"]},\n    {name: \"Vue.js Component\", mimes: [\"script/x-vue\", \"text/x-vue\"], mode: \"vue\", ext: [\"vue\"]},\n    {name: \"XML\", mimes: [\"application/xml\", \"text/xml\"], mode: \"xml\", ext: [\"xml\", \"xsl\", \"xsd\", \"svg\"], alias: [\"rss\", \"wsdl\", \"xsd\"]},\n    {name: \"XQuery\", mime: \"application/xquery\", mode: \"xquery\", ext: [\"xy\", \"xquery\"]},\n    {name: \"Yacas\", mime: \"text/x-yacas\", mode: \"yacas\", ext: [\"ys\"]},\n    {name: \"YAML\", mimes: [\"text/x-yaml\", \"text/yaml\"], mode: \"yaml\", ext: [\"yaml\", \"yml\"], alias: [\"yml\"]},\n    {name: \"Z80\", mime: \"text/x-z80\", mode: \"z80\", ext: [\"z80\"]},\n    {name: \"mscgen\", mime: \"text/x-mscgen\", mode: \"mscgen\", ext: [\"mscgen\", \"mscin\", \"msc\"]},\n    {name: \"xu\", mime: \"text/x-xu\", mode: \"mscgen\", ext: [\"xu\"]},\n    {name: \"msgenny\", mime: \"text/x-msgenny\", mode: \"mscgen\", ext: [\"msgenny\"]}\n  ];\n  // Ensure all modes have a mime property for backwards compatibility\n  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n    var info = CodeMirror.modeInfo[i];\n    if (info.mimes) info.mime = info.mimes[0];\n  }\n\n  CodeMirror.findModeByMIME = function(mime) {\n    mime = mime.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.mime == mime) return info;\n      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)\n        if (info.mimes[j] == mime) return info;\n    }\n    if (/\\+xml$/.test(mime)) return CodeMirror.findModeByMIME(\"application/xml\")\n    if (/\\+json$/.test(mime)) return CodeMirror.findModeByMIME(\"application/json\")\n  };\n\n  CodeMirror.findModeByExtension = function(ext) {\n    ext = ext.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.ext) for (var j = 0; j < info.ext.length; j++)\n        if (info.ext[j] == ext) return info;\n    }\n  };\n\n  CodeMirror.findModeByFileName = function(filename) {\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.file && info.file.test(filename)) return info;\n    }\n    var dot = filename.lastIndexOf(\".\");\n    var ext = dot > -1 && filename.substring(dot + 1, filename.length);\n    if (ext) return CodeMirror.findModeByExtension(ext);\n  };\n\n  CodeMirror.findModeByName = function(name) {\n    name = name.toLowerCase();\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\n      var info = CodeMirror.modeInfo[i];\n      if (info.name.toLowerCase() == name) return info;\n      if (info.alias) for (var j = 0; j < info.alias.length; j++)\n        if (info.alias[j].toLowerCase() == name) return info;\n    }\n  };\n});\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: https://codemirror.net/LICENSE\n\n(function(mod) {\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n    mod(require(\"../../lib/codemirror\"));\n  else if (typeof define == \"function\" && define.amd) // AMD\n    define([\"../../lib/codemirror\"], mod);\n  else // Plain browser env\n    mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nvar htmlConfig = {\n  autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,\n                    'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,\n                    'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,\n                    'track': true, 'wbr': true, 'menuitem': true},\n  implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,\n                     'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,\n                     'th': true, 'tr': true},\n  contextGrabbers: {\n    'dd': {'dd': true, 'dt': true},\n    'dt': {'dd': true, 'dt': true},\n    'li': {'li': true},\n    'option': {'option': true, 'optgroup': true},\n    'optgroup': {'optgroup': true},\n    'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,\n          'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,\n          'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,\n          'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,\n          'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},\n    'rp': {'rp': true, 'rt': true},\n    'rt': {'rp': true, 'rt': true},\n    'tbody': {'tbody': true, 'tfoot': true},\n    'td': {'td': true, 'th': true},\n    'tfoot': {'tbody': true},\n    'th': {'td': true, 'th': true},\n    'thead': {'tbody': true, 'tfoot': true},\n    'tr': {'tr': true}\n  },\n  doNotIndent: {\"pre\": true},\n  allowUnquoted: true,\n  allowMissing: true,\n  caseFold: true\n}\n\nvar xmlConfig = {\n  autoSelfClosers: {},\n  implicitlyClosed: {},\n  contextGrabbers: {},\n  doNotIndent: {},\n  allowUnquoted: false,\n  allowMissing: false,\n  allowMissingTagName: false,\n  caseFold: false\n}\n\nCodeMirror.defineMode(\"xml\", function(editorConf, config_) {\n  var indentUnit = editorConf.indentUnit\n  var config = {}\n  var defaults = config_.htmlMode ? htmlConfig : xmlConfig\n  for (var prop in defaults) config[prop] = defaults[prop]\n  for (var prop in config_) config[prop] = config_[prop]\n\n  // Return variables for tokenizers\n  var type, setStyle;\n\n  function inText(stream, state) {\n    function chain(parser) {\n      state.tokenize = parser;\n      return parser(stream, state);\n    }\n\n    var ch = stream.next();\n    if (ch == \"<\") {\n      if (stream.eat(\"!\")) {\n        if (stream.eat(\"[\")) {\n          if (stream.match(\"CDATA[\")) return chain(inBlock(\"atom\", \"]]>\"));\n          else return null;\n        } else if (stream.match(\"--\")) {\n          return chain(inBlock(\"comment\", \"-->\"));\n        } else if (stream.match(\"DOCTYPE\", true, true)) {\n          stream.eatWhile(/[\\w\\._\\-]/);\n          return chain(doctype(1));\n        } else {\n          return null;\n        }\n      } else if (stream.eat(\"?\")) {\n        stream.eatWhile(/[\\w\\._\\-]/);\n        state.tokenize = inBlock(\"meta\", \"?>\");\n        return \"meta\";\n      } else {\n        type = stream.eat(\"/\") ? \"closeTag\" : \"openTag\";\n        state.tokenize = inTag;\n        return \"tag bracket\";\n      }\n    } else if (ch == \"&\") {\n      var ok;\n      if (stream.eat(\"#\")) {\n        if (stream.eat(\"x\")) {\n          ok = stream.eatWhile(/[a-fA-F\\d]/) && stream.eat(\";\");\n        } else {\n          ok = stream.eatWhile(/[\\d]/) && stream.eat(\";\");\n        }\n      } else {\n        ok = stream.eatWhile(/[\\w\\.\\-:]/) && stream.eat(\";\");\n      }\n      return ok ? \"atom\" : \"error\";\n    } else {\n      stream.eatWhile(/[^&<]/);\n      return null;\n    }\n  }\n  inText.isInText = true;\n\n  function inTag(stream, state) {\n    var ch = stream.next();\n    if (ch == \">\" || (ch == \"/\" && stream.eat(\">\"))) {\n      state.tokenize = inText;\n      type = ch == \">\" ? \"endTag\" : \"selfcloseTag\";\n      return \"tag bracket\";\n    } else if (ch == \"=\") {\n      type = \"equals\";\n      return null;\n    } else if (ch == \"<\") {\n      state.tokenize = inText;\n      state.state = baseState;\n      state.tagName = state.tagStart = null;\n      var next = state.tokenize(stream, state);\n      return next ? next + \" tag error\" : \"tag error\";\n    } else if (/[\\'\\\"]/.test(ch)) {\n      state.tokenize = inAttribute(ch);\n      state.stringStartCol = stream.column();\n      return state.tokenize(stream, state);\n    } else {\n      stream.match(/^[^\\s\\u00a0=<>\\\"\\']*[^\\s\\u00a0=<>\\\"\\'\\/]/);\n      return \"word\";\n    }\n  }\n\n  function inAttribute(quote) {\n    var closure = function(stream, state) {\n      while (!stream.eol()) {\n        if (stream.next() == quote) {\n          state.tokenize = inTag;\n          break;\n        }\n      }\n      return \"string\";\n    };\n    closure.isInAttribute = true;\n    return closure;\n  }\n\n  function inBlock(style, terminator) {\n    return function(stream, state) {\n      while (!stream.eol()) {\n        if (stream.match(terminator)) {\n          state.tokenize = inText;\n          break;\n        }\n        stream.next();\n      }\n      return style;\n    }\n  }\n\n  function doctype(depth) {\n    return function(stream, state) {\n      var ch;\n      while ((ch = stream.next()) != null) {\n        if (ch == \"<\") {\n          state.tokenize = doctype(depth + 1);\n          return state.tokenize(stream, state);\n        } else if (ch == \">\") {\n          if (depth == 1) {\n            state.tokenize = inText;\n            break;\n          } else {\n            state.tokenize = doctype(depth - 1);\n            return state.tokenize(stream, state);\n          }\n        }\n      }\n      return \"meta\";\n    };\n  }\n\n  function Context(state, tagName, startOfLine) {\n    this.prev = state.context;\n    this.tagName = tagName;\n    this.indent = state.indented;\n    this.startOfLine = startOfLine;\n    if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))\n      this.noIndent = true;\n  }\n  function popContext(state) {\n    if (state.context) state.context = state.context.prev;\n  }\n  function maybePopContext(state, nextTagName) {\n    var parentTagName;\n    while (true) {\n      if (!state.context) {\n        return;\n      }\n      parentTagName = state.context.tagName;\n      if (!config.contextGrabbers.hasOwnProperty(parentTagName) ||\n          !config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {\n        return;\n      }\n      popContext(state);\n    }\n  }\n\n  function baseState(type, stream, state) {\n    if (type == \"openTag\") {\n      state.tagStart = stream.column();\n      return tagNameState;\n    } else if (type == \"closeTag\") {\n      return closeTagNameState;\n    } else {\n      return baseState;\n    }\n  }\n  function tagNameState(type, stream, state) {\n    if (type == \"word\") {\n      state.tagName = stream.current();\n      setStyle = \"tag\";\n      return attrState;\n    } else if (config.allowMissingTagName && type == \"endTag\") {\n      setStyle = \"tag bracket\";\n      return attrState(type, stream, state);\n    } else {\n      setStyle = \"error\";\n      return tagNameState;\n    }\n  }\n  function closeTagNameState(type, stream, state) {\n    if (type == \"word\") {\n      var tagName = stream.current();\n      if (state.context && state.context.tagName != tagName &&\n          config.implicitlyClosed.hasOwnProperty(state.context.tagName))\n        popContext(state);\n      if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {\n        setStyle = \"tag\";\n        return closeState;\n      } else {\n        setStyle = \"tag error\";\n        return closeStateErr;\n      }\n    } else if (config.allowMissingTagName && type == \"endTag\") {\n      setStyle = \"tag bracket\";\n      return closeState(type, stream, state);\n    } else {\n      setStyle = \"error\";\n      return closeStateErr;\n    }\n  }\n\n  function closeState(type, _stream, state) {\n    if (type != \"endTag\") {\n      setStyle = \"error\";\n      return closeState;\n    }\n    popContext(state);\n    return baseState;\n  }\n  function closeStateErr(type, stream, state) {\n    setStyle = \"error\";\n    return closeState(type, stream, state);\n  }\n\n  function attrState(type, _stream, state) {\n    if (type == \"word\") {\n      setStyle = \"attribute\";\n      return attrEqState;\n    } else if (type == \"endTag\" || type == \"selfcloseTag\") {\n      var tagName = state.tagName, tagStart = state.tagStart;\n      state.tagName = state.tagStart = null;\n      if (type == \"selfcloseTag\" ||\n          config.autoSelfClosers.hasOwnProperty(tagName)) {\n        maybePopContext(state, tagName);\n      } else {\n        maybePopContext(state, tagName);\n        state.context = new Context(state, tagName, tagStart == state.indented);\n      }\n      return baseState;\n    }\n    setStyle = \"error\";\n    return attrState;\n  }\n  function attrEqState(type, stream, state) {\n    if (type == \"equals\") return attrValueState;\n    if (!config.allowMissing) setStyle = \"error\";\n    return attrState(type, stream, state);\n  }\n  function attrValueState(type, stream, state) {\n    if (type == \"string\") return attrContinuedState;\n    if (type == \"word\" && config.allowUnquoted) {setStyle = \"string\"; return attrState;}\n    setStyle = \"error\";\n    return attrState(type, stream, state);\n  }\n  function attrContinuedState(type, stream, state) {\n    if (type == \"string\") return attrContinuedState;\n    return attrState(type, stream, state);\n  }\n\n  return {\n    startState: function(baseIndent) {\n      var state = {tokenize: inText,\n                   state: baseState,\n                   indented: baseIndent || 0,\n                   tagName: null, tagStart: null,\n                   context: null}\n      if (baseIndent != null) state.baseIndent = baseIndent\n      return state\n    },\n\n    token: function(stream, state) {\n      if (!state.tagName && stream.sol())\n        state.indented = stream.indentation();\n\n      if (stream.eatSpace()) return null;\n      type = null;\n      var style = state.tokenize(stream, state);\n      if ((style || type) && style != \"comment\") {\n        setStyle = null;\n        state.state = state.state(type || style, stream, state);\n        if (setStyle)\n          style = setStyle == \"error\" ? style + \" error\" : setStyle;\n      }\n      return style;\n    },\n\n    indent: function(state, textAfter, fullLine) {\n      var context = state.context;\n      // Indent multi-line strings (e.g. css).\n      if (state.tokenize.isInAttribute) {\n        if (state.tagStart == state.indented)\n          return state.stringStartCol + 1;\n        else\n          return state.indented + indentUnit;\n      }\n      if (context && context.noIndent) return CodeMirror.Pass;\n      if (state.tokenize != inTag && state.tokenize != inText)\n        return fullLine ? fullLine.match(/^(\\s*)/)[0].length : 0;\n      // Indent the starts of attribute names.\n      if (state.tagName) {\n        if (config.multilineTagIndentPastTag !== false)\n          return state.tagStart + state.tagName.length + 2;\n        else\n          return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);\n      }\n      if (config.alignCDATA && /<!\\[CDATA\\[/.test(textAfter)) return 0;\n      var tagAfter = textAfter && /^<(\\/)?([\\w_:\\.-]*)/.exec(textAfter);\n      if (tagAfter && tagAfter[1]) { // Closing tag spotted\n        while (context) {\n          if (context.tagName == tagAfter[2]) {\n            context = context.prev;\n            break;\n          } else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) {\n            context = context.prev;\n          } else {\n            break;\n          }\n        }\n      } else if (tagAfter) { // Opening tag spotted\n        while (context) {\n          var grabbers = config.contextGrabbers[context.tagName];\n          if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))\n            context = context.prev;\n          else\n            break;\n        }\n      }\n      while (context && context.prev && !context.startOfLine)\n        context = context.prev;\n      if (context) return context.indent + indentUnit;\n      else return state.baseIndent || 0;\n    },\n\n    electricInput: /<\\/[\\s\\w:]+>$/,\n    blockCommentStart: \"<!--\",\n    blockCommentEnd: \"-->\",\n\n    configuration: config.htmlMode ? \"html\" : \"xml\",\n    helperType: config.htmlMode ? \"html\" : \"xml\",\n\n    skipAttribute: function(state) {\n      if (state.state == attrValueState)\n        state.state = attrState\n    },\n\n    xmlCurrentTag: function(state) {\n      return state.tagName ? {name: state.tagName, close: state.type == \"closeTag\"} : null\n    },\n\n    xmlCurrentContext: function(state) {\n      var context = []\n      for (var cx = state.context; cx; cx = cx.prev)\n        if (cx.tagName) context.push(cx.tagName)\n      return context.reverse()\n    }\n  };\n});\n\nCodeMirror.defineMIME(\"text/xml\", \"xml\");\nCodeMirror.defineMIME(\"application/xml\", \"xml\");\nif (!CodeMirror.mimeModes.hasOwnProperty(\"text/html\"))\n  CodeMirror.defineMIME(\"text/html\", {name: \"xml\", htmlMode: true});\n\n});\n","\nmodule.exports = {\n\n    _patterns: [\n\n        {\n            name: 'blockquote',\n            regex: /<blockquote.*?>([\\s\\S]*?)<\\/blockquote>/im,\n            callback: function (matches) {\n                return '> ' + this.trim(matches[1]);\n            }\n        },\n\n        {\n\n            name: 'pre-code',\n            regex: /<pre.*?>.*?<code.*?>([\\s\\S]*?)<\\/code>.*?<\\/pre>/im,\n            callback: function (matches) {\n                return '```\\n' + this.escape(matches[1]) + '\\n```';\n                //return '\\n```\\n$1\\n```\\n';\n            }\n        },\n\n        {\n            name: 'code',\n            regex: /<code.*?>([\\s\\S]*?)<\\/code>/im,\n            callback: function (matches) {\n                return '```' + this.escape(matches[1]) + '```';\n            }\n        },\n\n        {\n            name: 'pre',\n            regex: /<pre.*?>([\\s\\S]*?)<\\/pre>/im,\n            callback: function (matches) {\n                return '\\n```\\n' + this.escape(matches[1]) + '\\n```\\n';\n            }\n        },\n\n        {\n            name: 'heading',\n            regex: /<h(\\d*).*?>(.*?)<\\/h\\d*>/im,\n            callback: function (matches) {\n                var count = parseInt(matches[1]);\n                var string = '';\n                for (var x = 0; x < count; x++) {\n                    string += '#'\n                }\n                return string + ' ' + this.trim(matches[2]) + '\\n';\n            }\n        },\n        {\n            name: 'p',\n            //regex: /<p>([\\s\\S]*?)<\\/p>/gim,\n            regex: /<p.*?>(.*?)<\\/p>/gmi,\n            callback: function () {\n                return '\\n$1\\n';\n            }\n\n        },\n\n\n        {\n            name: 'ul',\n            regex: /<ul.*?>([\\s\\S]*?)<\\/ul>/im,\n            callback: function (matches) {\n                var html = matches[1];\n                var regex = /<li>([\\s\\S]*?)<\\/li>/i;\n                var m = [];\n                while (m = regex.exec(html)) {\n                    if (m) {\n                        html = this.trim(html.replace(regex, '* $1{x}'));\n                    }\n                }\n                return html.replace(/{x}/g, '\\n');;\n\n            }\n        },\n        {\n            name: 'ol',\n            regex: /<ol.*?>([\\s\\S]*?)<\\/ol>/im,\n            callback: function (matches) {\n                var html = matches[1];\n                var regex = /<li>([\\s\\S]*?)<\\/li>/i;\n                var m = [];\n                while (m = regex.exec(html)) {\n                    if (m) {\n                        html = this.trim(html.replace(regex, '1. $1{x}'));\n                    }\n                }\n                return html.replace(/{x}/g, '\\n');\n            }\n        },\n\n\n        {\n            name: 'bold',\n            regex: /<(?:b|strong)>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '**$1**';\n            }\n        },\n\n        {\n            name: 'italic',\n            regex: /<(?:i|em)>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '*$1*';\n            }\n        },\n        {\n            name: 'del',\n            regex: /<del.*?>([\\s\\S]*?)<\\/\\w*>/gim,\n            callback: function () {\n                return '~~$1~~';\n            }\n        },\n\n        {\n            name: 'br',\n            regex: /<br.*?>/gim,\n            callback: function () {\n                return '\\n';\n            }\n        },\n        {\n            name: 'hr',\n            regex: /<hr.*?>/gim,\n            callback: function () {\n                return '\\n* * *\\n';\n            }\n        },\n\n        {\n            name: 'div',\n            regex: /<div.*?>(.*?)<\\/div>/gim,\n            callback: function () {\n                return '$1\\n';\n            }\n        },\n        {\n            name: 'a',\n            regex: /<a.*? href=\"([^\"]+)\".*?>([^<]+)<\\/a>/gim,\n            callback: function () {\n                return '[$2]($1 \"$2\")';\n            }\n\n        },\n        {\n            name: 'image',\n            regex: /<img.*?src\\s*=\\s*['\\\"]([^'\\\"]*?)['\\\"][^>]*?>/gim,\n            callback: function () {\n                return '![]($1)';\n            }\n        },\n\n        {\n            name: 'style',\n            regex: /<style\\b[^<]*(?:(?!<\\/style>)<[^<]*)*<\\/style>/gim,\n            callback: function () {\n                return '';\n            }\n        },\n\n        {\n            name: 'script',\n            regex: /<script\\b[^<]*(?:(?!<\\/script>)<[^<]*)*<\\/script>/gim,\n            callback: function () {\n                return '';\n            }\n        },\n\n        {\n            name: 'html',\n            regex: /<(?:.)*?>/gm,\n            callback: function () {\n                return '';\n            }\n        },\n\n\n    ],\n\n    escape: function (html) {\n        return html\n            .replace(/</g, \"&lt;\")\n            .replace(/>/g, \"&gt;\");\n        // .replace(/\"/g, \"&quot;\")\n        // .replace(/'/g, \"&#039;\");\n    },\n\n    decode: function (str) {\n\n\n\n        return str.replace(/&nbsp;/g, ' ')\n            .replace(/&amp;/g, '&')\n            .replace(/&gt;/g, '>')\n            .replace(/&lt;/g, '<')\n            .replace(/&quot;/g, '\"')\n            .replace(/&#(\\d+);/g, function (match, dec) {\n                return String.fromCharCode(dec);\n            });\n\n    },\n    trim: function (str) {\n        return str.replace(/(?:(?:^|\\n)\\s+|\\s+(?:$|\\n))/g, '').replace(/\\s+/g, ' ');\n    },\n    parse: function (html, regexs) {\n        var _t = this;\n        if (html && html.length > 0) {\n\n            if (regexs) {\n                regexs = Array.isArray(regexs) ? regexs : [regexs];\n                this._patterns.concat(regexs);\n            }\n            this._patterns.forEach(function (p) {\n                var matches = [];\n                while (matches = p.regex.exec(html)) {\n                    // console.log(matches);\n                    if (matches) {\n                        var txt = '$1';\n                        if (p.callback && typeof (p.callback) === 'function') {\n                            txt = p.callback.call(_t, matches);\n                        }\n\n                        html = html.replace(p.regex, txt);\n                    }\n                }\n            });\n        }\n        return this.decode(html);\n    }\n}","const Renderer = require('./Renderer.js');\nconst { defaults } = require('./defaults.js');\nconst { inline } = require('./rules.js');\nconst {\n  findClosingBracket,\n  escape\n} = require('./helpers.js');\n\n/**\n * Inline Lexer & Compiler\n */\nmodule.exports = class InlineLexer {\n  constructor(links, options) {\n    this.options = options || defaults;\n    this.links = links;\n    this.rules = inline.normal;\n    this.options.renderer = this.options.renderer || new Renderer();\n    this.renderer = this.options.renderer;\n    this.renderer.options = this.options;\n\n    if (!this.links) {\n      throw new Error('Tokens array requires a `links` property.');\n    }\n\n    if (this.options.pedantic) {\n      this.rules = inline.pedantic;\n    } else if (this.options.gfm) {\n      if (this.options.breaks) {\n        this.rules = inline.breaks;\n      } else {\n        this.rules = inline.gfm;\n      }\n    }\n  }\n\n  /**\n   * Expose Inline Rules\n   */\n  static get rules() {\n    return inline;\n  }\n\n  /**\n   * Static Lexing/Compiling Method\n   */\n  static output(src, links, options) {\n    const inline = new InlineLexer(links, options);\n    return inline.output(src);\n  }\n\n  /**\n   * Lexing/Compiling\n   */\n  output(src) {\n    let out = '',\n      link,\n      text,\n      href,\n      title,\n      cap,\n      prevCapZero;\n\n    while (src) {\n      // escape\n      if (cap = this.rules.escape.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += escape(cap[1]);\n        continue;\n      }\n\n      // tag\n      if (cap = this.rules.tag.exec(src)) {\n        if (!this.inLink && /^<a /i.test(cap[0])) {\n          this.inLink = true;\n        } else if (this.inLink && /^<\\/a>/i.test(cap[0])) {\n          this.inLink = false;\n        }\n        if (!this.inRawBlock && /^<(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n          this.inRawBlock = true;\n        } else if (this.inRawBlock && /^<\\/(pre|code|kbd|script)(\\s|>)/i.test(cap[0])) {\n          this.inRawBlock = false;\n        }\n\n        src = src.substring(cap[0].length);\n        out += this.options.sanitize\n          ? this.options.sanitizer\n            ? this.options.sanitizer(cap[0])\n            : escape(cap[0])\n          : cap[0];\n        continue;\n      }\n\n      // link\n      if (cap = this.rules.link.exec(src)) {\n        const lastParenIndex = findClosingBracket(cap[2], '()');\n        if (lastParenIndex > -1) {\n          const start = cap[0].indexOf('!') === 0 ? 5 : 4;\n          const linkLen = start + cap[1].length + lastParenIndex;\n          cap[2] = cap[2].substring(0, lastParenIndex);\n          cap[0] = cap[0].substring(0, linkLen).trim();\n          cap[3] = '';\n        }\n        src = src.substring(cap[0].length);\n        this.inLink = true;\n        href = cap[2];\n        if (this.options.pedantic) {\n          link = /^([^'\"]*[^\\s])\\s+(['\"])(.*)\\2/.exec(href);\n\n          if (link) {\n            href = link[1];\n            title = link[3];\n          } else {\n            title = '';\n          }\n        } else {\n          title = cap[3] ? cap[3].slice(1, -1) : '';\n        }\n        href = href.trim().replace(/^<([\\s\\S]*)>$/, '$1');\n        out += this.outputLink(cap, {\n          href: InlineLexer.escapes(href),\n          title: InlineLexer.escapes(title)\n        });\n        this.inLink = false;\n        continue;\n      }\n\n      // reflink, nolink\n      if ((cap = this.rules.reflink.exec(src))\n          || (cap = this.rules.nolink.exec(src))) {\n        src = src.substring(cap[0].length);\n        link = (cap[2] || cap[1]).replace(/\\s+/g, ' ');\n        link = this.links[link.toLowerCase()];\n        if (!link || !link.href) {\n          out += cap[0].charAt(0);\n          src = cap[0].substring(1) + src;\n          continue;\n        }\n        this.inLink = true;\n        out += this.outputLink(cap, link);\n        this.inLink = false;\n        continue;\n      }\n\n      // strong\n      if (cap = this.rules.strong.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.strong(this.output(cap[4] || cap[3] || cap[2] || cap[1]));\n        continue;\n      }\n\n      // em\n      if (cap = this.rules.em.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.em(this.output(cap[6] || cap[5] || cap[4] || cap[3] || cap[2] || cap[1]));\n        continue;\n      }\n\n      // code\n      if (cap = this.rules.code.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.codespan(escape(cap[2].trim(), true));\n        continue;\n      }\n\n      // br\n      if (cap = this.rules.br.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.br();\n        continue;\n      }\n\n      // del (gfm)\n      if (cap = this.rules.del.exec(src)) {\n        src = src.substring(cap[0].length);\n        out += this.renderer.del(this.output(cap[1]));\n        continue;\n      }\n\n      // autolink\n      if (cap = this.rules.autolink.exec(src)) {\n        src = src.substring(cap[0].length);\n        if (cap[2] === '@') {\n          text = escape(this.mangle(cap[1]));\n          href = 'mailto:' + text;\n        } else {\n          text = escape(cap[1]);\n          href = text;\n        }\n        out += this.renderer.link(href, null, text);\n        continue;\n      }\n\n      // url (gfm)\n      if (!this.inLink && (cap = this.rules.url.exec(src))) {\n        if (cap[2] === '@') {\n          text = escape(cap[0]);\n          href = 'mailto:' + text;\n        } else {\n          // do extended autolink path validation\n          do {\n            prevCapZero = cap[0];\n            cap[0] = this.rules._backpedal.exec(cap[0])[0];\n          } while (prevCapZero !== cap[0]);\n          text = escape(cap[0]);\n          if (cap[1] === 'www.') {\n            href = 'http://' + text;\n          } else {\n            href = text;\n          }\n        }\n        src = src.substring(cap[0].length);\n        out += this.renderer.link(href, null, text);\n        continue;\n      }\n\n      // text\n      if (cap = this.rules.text.exec(src)) {\n        src = src.substring(cap[0].length);\n        if (this.inRawBlock) {\n          out += this.renderer.text(this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]);\n        } else {\n          out += this.renderer.text(escape(this.smartypants(cap[0])));\n        }\n        continue;\n      }\n\n      if (src) {\n        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));\n      }\n    }\n\n    return out;\n  }\n\n  static escapes(text) {\n    return text ? text.replace(InlineLexer.rules._escapes, '$1') : text;\n  }\n\n  /**\n   * Compile Link\n   */\n  outputLink(cap, link) {\n    const href = link.href,\n      title = link.title ? escape(link.title) : null;\n\n    return cap[0].charAt(0) !== '!'\n      ? this.renderer.link(href, title, this.output(cap[1]))\n      : this.renderer.image(href, title, escape(cap[1]));\n  }\n\n  /**\n   * Smartypants Transformations\n   */\n  smartypants(text) {\n    if (!this.options.smartypants) return text;\n    return text\n      // em-dashes\n      .replace(/---/g, '\\u2014')\n      // en-dashes\n      .replace(/--/g, '\\u2013')\n      // opening singles\n      .replace(/(^|[-\\u2014/(\\[{\"\\s])'/g, '$1\\u2018')\n      // closing singles & apostrophes\n      .replace(/'/g, '\\u2019')\n      // opening doubles\n      .replace(/(^|[-\\u2014/(\\[{\\u2018\\s])\"/g, '$1\\u201c')\n      // closing doubles\n      .replace(/\"/g, '\\u201d')\n      // ellipses\n      .replace(/\\.{3}/g, '\\u2026');\n  }\n\n  /**\n   * Mangle Links\n   */\n  mangle(text) {\n    if (!this.options.mangle) return text;\n    const l = text.length;\n    let out = '',\n      i = 0,\n      ch;\n\n    for (; i < l; i++) {\n      ch = text.charCodeAt(i);\n      if (Math.random() > 0.5) {\n        ch = 'x' + ch.toString(16);\n      }\n      out += '&#' + ch + ';';\n    }\n\n    return out;\n  }\n};\n","const { defaults } = require('./defaults.js');\nconst { block } = require('./rules.js');\nconst {\n  rtrim,\n  splitCells,\n  escape\n} = require('./helpers.js');\n\n/**\n * Block Lexer\n */\nmodule.exports = class Lexer {\n  constructor(options) {\n    this.tokens = [];\n    this.tokens.links = Object.create(null);\n    this.options = options || defaults;\n    this.rules = block.normal;\n\n    if (this.options.pedantic) {\n      this.rules = block.pedantic;\n    } else if (this.options.gfm) {\n      this.rules = block.gfm;\n    }\n  }\n\n  /**\n   * Expose Block Rules\n   */\n  static get rules() {\n    return block;\n  }\n\n  /**\n   * Static Lex Method\n   */\n  static lex(src, options) {\n    const lexer = new Lexer(options);\n    return lexer.lex(src);\n  };\n\n  /**\n   * Preprocessing\n   */\n  lex(src) {\n    src = src\n      .replace(/\\r\\n|\\r/g, '\\n')\n      .replace(/\\t/g, '    ');\n\n    return this.token(src, true);\n  };\n\n  /**\n   * Lexing\n   */\n  token(src, top) {\n    src = src.replace(/^ +$/gm, '');\n    let next,\n      loose,\n      cap,\n      bull,\n      b,\n      item,\n      listStart,\n      listItems,\n      t,\n      space,\n      i,\n      tag,\n      l,\n      isordered,\n      istask,\n      ischecked;\n\n    while (src) {\n      // newline\n      if (cap = this.rules.newline.exec(src)) {\n        src = src.substring(cap[0].length);\n        if (cap[0].length > 1) {\n          this.tokens.push({\n            type: 'space'\n          });\n        }\n      }\n\n      // code\n      if (cap = this.rules.code.exec(src)) {\n        const lastToken = this.tokens[this.tokens.length - 1];\n        src = src.substring(cap[0].length);\n        // An indented code block cannot interrupt a paragraph.\n        if (lastToken && lastToken.type === 'paragraph') {\n          lastToken.text += '\\n' + cap[0].trimRight();\n        } else {\n          cap = cap[0].replace(/^ {4}/gm, '');\n          this.tokens.push({\n            type: 'code',\n            codeBlockStyle: 'indented',\n            text: !this.options.pedantic\n              ? rtrim(cap, '\\n')\n              : cap\n          });\n        }\n        continue;\n      }\n\n      // fences\n      if (cap = this.rules.fences.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'code',\n          lang: cap[2] ? cap[2].trim() : cap[2],\n          text: cap[3] || ''\n        });\n        continue;\n      }\n\n      // heading\n      if (cap = this.rules.heading.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'heading',\n          depth: cap[1].length,\n          text: cap[2]\n        });\n        continue;\n      }\n\n      // table no leading pipe (gfm)\n      if (cap = this.rules.nptable.exec(src)) {\n        item = {\n          type: 'table',\n          header: splitCells(cap[1].replace(/^ *| *\\| *$/g, '')),\n          align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\n          cells: cap[3] ? cap[3].replace(/\\n$/, '').split('\\n') : []\n        };\n\n        if (item.header.length === item.align.length) {\n          src = src.substring(cap[0].length);\n\n          for (i = 0; i < item.align.length; i++) {\n            if (/^ *-+: *$/.test(item.align[i])) {\n              item.align[i] = 'right';\n            } else if (/^ *:-+: *$/.test(item.align[i])) {\n              item.align[i] = 'center';\n            } else if (/^ *:-+ *$/.test(item.align[i])) {\n              item.align[i] = 'left';\n            } else {\n              item.align[i] = null;\n            }\n          }\n\n          for (i = 0; i < item.cells.length; i++) {\n            item.cells[i] = splitCells(item.cells[i], item.header.length);\n          }\n\n          this.tokens.push(item);\n\n          continue;\n        }\n      }\n\n      // hr\n      if (cap = this.rules.hr.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'hr'\n        });\n        continue;\n      }\n\n      // blockquote\n      if (cap = this.rules.blockquote.exec(src)) {\n        src = src.substring(cap[0].length);\n\n        this.tokens.push({\n          type: 'blockquote_start'\n        });\n\n        cap = cap[0].replace(/^ *> ?/gm, '');\n\n        // Pass `top` to keep the current\n        // \"toplevel\" state. This is exactly\n        // how markdown.pl works.\n        this.token(cap, top);\n\n        this.tokens.push({\n          type: 'blockquote_end'\n        });\n\n        continue;\n      }\n\n      // list\n      if (cap = this.rules.list.exec(src)) {\n        src = src.substring(cap[0].length);\n        bull = cap[2];\n        isordered = bull.length > 1;\n\n        listStart = {\n          type: 'list_start',\n          ordered: isordered,\n          start: isordered ? +bull : '',\n          loose: false\n        };\n\n        this.tokens.push(listStart);\n\n        // Get each top-level item.\n        cap = cap[0].match(this.rules.item);\n\n        listItems = [];\n        next = false;\n        l = cap.length;\n        i = 0;\n\n        for (; i < l; i++) {\n          item = cap[i];\n\n          // Remove the list item's bullet\n          // so it is seen as the next token.\n          space = item.length;\n          item = item.replace(/^ *([*+-]|\\d+\\.) */, '');\n\n          // Outdent whatever the\n          // list item contains. Hacky.\n          if (~item.indexOf('\\n ')) {\n            space -= item.length;\n            item = !this.options.pedantic\n              ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')\n              : item.replace(/^ {1,4}/gm, '');\n          }\n\n          // Determine whether the next list item belongs here.\n          // Backpedal if it does not belong in this list.\n          if (i !== l - 1) {\n            b = block.bullet.exec(cap[i + 1])[0];\n            if (bull.length > 1 ? b.length === 1\n              : (b.length > 1 || (this.options.smartLists && b !== bull))) {\n              src = cap.slice(i + 1).join('\\n') + src;\n              i = l - 1;\n            }\n          }\n\n          // Determine whether item is loose or not.\n          // Use: /(^|\\n)(?! )[^\\n]+\\n\\n(?!\\s*$)/\n          // for discount behavior.\n          loose = next || /\\n\\n(?!\\s*$)/.test(item);\n          if (i !== l - 1) {\n            next = item.charAt(item.length - 1) === '\\n';\n            if (!loose) loose = next;\n          }\n\n          if (loose) {\n            listStart.loose = true;\n          }\n\n          // Check for task list items\n          istask = /^\\[[ xX]\\] /.test(item);\n          ischecked = undefined;\n          if (istask) {\n            ischecked = item[1] !== ' ';\n            item = item.replace(/^\\[[ xX]\\] +/, '');\n          }\n\n          t = {\n            type: 'list_item_start',\n            task: istask,\n            checked: ischecked,\n            loose: loose\n          };\n\n          listItems.push(t);\n          this.tokens.push(t);\n\n          // Recurse.\n          this.token(item, false);\n\n          this.tokens.push({\n            type: 'list_item_end'\n          });\n        }\n\n        if (listStart.loose) {\n          l = listItems.length;\n          i = 0;\n          for (; i < l; i++) {\n            listItems[i].loose = true;\n          }\n        }\n\n        this.tokens.push({\n          type: 'list_end'\n        });\n\n        continue;\n      }\n\n      // html\n      if (cap = this.rules.html.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: this.options.sanitize\n            ? 'paragraph'\n            : 'html',\n          pre: !this.options.sanitizer\n            && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),\n          text: this.options.sanitize ? (this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0])) : cap[0]\n        });\n        continue;\n      }\n\n      // def\n      if (top && (cap = this.rules.def.exec(src))) {\n        src = src.substring(cap[0].length);\n        if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);\n        tag = cap[1].toLowerCase().replace(/\\s+/g, ' ');\n        if (!this.tokens.links[tag]) {\n          this.tokens.links[tag] = {\n            href: cap[2],\n            title: cap[3]\n          };\n        }\n        continue;\n      }\n\n      // table (gfm)\n      if (cap = this.rules.table.exec(src)) {\n        item = {\n          type: 'table',\n          header: splitCells(cap[1].replace(/^ *| *\\| *$/g, '')),\n          align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\n          cells: cap[3] ? cap[3].replace(/\\n$/, '').split('\\n') : []\n        };\n\n        if (item.header.length === item.align.length) {\n          src = src.substring(cap[0].length);\n\n          for (i = 0; i < item.align.length; i++) {\n            if (/^ *-+: *$/.test(item.align[i])) {\n              item.align[i] = 'right';\n            } else if (/^ *:-+: *$/.test(item.align[i])) {\n              item.align[i] = 'center';\n            } else if (/^ *:-+ *$/.test(item.align[i])) {\n              item.align[i] = 'left';\n            } else {\n              item.align[i] = null;\n            }\n          }\n\n          for (i = 0; i < item.cells.length; i++) {\n            item.cells[i] = splitCells(\n              item.cells[i].replace(/^ *\\| *| *\\| *$/g, ''),\n              item.header.length);\n          }\n\n          this.tokens.push(item);\n\n          continue;\n        }\n      }\n\n      // lheading\n      if (cap = this.rules.lheading.exec(src)) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'heading',\n          depth: cap[2].charAt(0) === '=' ? 1 : 2,\n          text: cap[1]\n        });\n        continue;\n      }\n\n      // top-level paragraph\n      if (top && (cap = this.rules.paragraph.exec(src))) {\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'paragraph',\n          text: cap[1].charAt(cap[1].length - 1) === '\\n'\n            ? cap[1].slice(0, -1)\n            : cap[1]\n        });\n        continue;\n      }\n\n      // text\n      if (cap = this.rules.text.exec(src)) {\n        // Top-level should never reach here.\n        src = src.substring(cap[0].length);\n        this.tokens.push({\n          type: 'text',\n          text: cap[0]\n        });\n        continue;\n      }\n\n      if (src) {\n        throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));\n      }\n    }\n\n    return this.tokens;\n  };\n};\n","const Renderer = require('./Renderer.js');\nconst Slugger = require('./Slugger.js');\nconst InlineLexer = require('./InlineLexer.js');\nconst TextRenderer = require('./TextRenderer.js');\nconst { defaults } = require('./defaults.js');\nconst {\n  merge,\n  unescape\n} = require('./helpers.js');\n\n/**\n * Parsing & Compiling\n */\nmodule.exports = class Parser {\n  constructor(options) {\n    this.tokens = [];\n    this.token = null;\n    this.options = options || defaults;\n    this.options.renderer = this.options.renderer || new Renderer();\n    this.renderer = this.options.renderer;\n    this.renderer.options = this.options;\n    this.slugger = new Slugger();\n  }\n\n  /**\n   * Static Parse Method\n   */\n  static parse(tokens, options) {\n    const parser = new Parser(options);\n    return parser.parse(tokens);\n  };\n\n  /**\n   * Parse Loop\n   */\n  parse(tokens) {\n    this.inline = new InlineLexer(tokens.links, this.options);\n    // use an InlineLexer with a TextRenderer to extract pure text\n    this.inlineText = new InlineLexer(\n      tokens.links,\n      merge({}, this.options, { renderer: new TextRenderer() })\n    );\n    this.tokens = tokens.reverse();\n\n    let out = '';\n    while (this.next()) {\n      out += this.tok();\n    }\n\n    return out;\n  };\n\n  /**\n   * Next Token\n   */\n  next() {\n    this.token = this.tokens.pop();\n    return this.token;\n  };\n\n  /**\n   * Preview Next Token\n   */\n  peek() {\n    return this.tokens[this.tokens.length - 1] || 0;\n  };\n\n  /**\n   * Parse Text Tokens\n   */\n  parseText() {\n    let body = this.token.text;\n\n    while (this.peek().type === 'text') {\n      body += '\\n' + this.next().text;\n    }\n\n    return this.inline.output(body);\n  };\n\n  /**\n   * Parse Current Token\n   */\n  tok() {\n    let body = '';\n    switch (this.token.type) {\n      case 'space': {\n        return '';\n      }\n      case 'hr': {\n        return this.renderer.hr();\n      }\n      case 'heading': {\n        return this.renderer.heading(\n          this.inline.output(this.token.text),\n          this.token.depth,\n          unescape(this.inlineText.output(this.token.text)),\n          this.slugger);\n      }\n      case 'code': {\n        return this.renderer.code(this.token.text,\n          this.token.lang,\n          this.token.escaped);\n      }\n      case 'table': {\n        let header = '',\n          i,\n          row,\n          cell,\n          j;\n\n        // header\n        cell = '';\n        for (i = 0; i < this.token.header.length; i++) {\n          cell += this.renderer.tablecell(\n            this.inline.output(this.token.header[i]),\n            { header: true, align: this.token.align[i] }\n          );\n        }\n        header += this.renderer.tablerow(cell);\n\n        for (i = 0; i < this.token.cells.length; i++) {\n          row = this.token.cells[i];\n\n          cell = '';\n          for (j = 0; j < row.length; j++) {\n            cell += this.renderer.tablecell(\n              this.inline.output(row[j]),\n              { header: false, align: this.token.align[j] }\n            );\n          }\n\n          body += this.renderer.tablerow(cell);\n        }\n        return this.renderer.table(header, body);\n      }\n      case 'blockquote_start': {\n        body = '';\n\n        while (this.next().type !== 'blockquote_end') {\n          body += this.tok();\n        }\n\n        return this.renderer.blockquote(body);\n      }\n      case 'list_start': {\n        body = '';\n        const ordered = this.token.ordered,\n          start = this.token.start;\n\n        while (this.next().type !== 'list_end') {\n          body += this.tok();\n        }\n\n        return this.renderer.list(body, ordered, start);\n      }\n      case 'list_item_start': {\n        body = '';\n        const loose = this.token.loose;\n        const checked = this.token.checked;\n        const task = this.token.task;\n\n        if (this.token.task) {\n          if (loose) {\n            if (this.peek().type === 'text') {\n              const nextToken = this.peek();\n              nextToken.text = this.renderer.checkbox(checked) + ' ' + nextToken.text;\n            } else {\n              this.tokens.push({\n                type: 'text',\n                text: this.renderer.checkbox(checked)\n              });\n            }\n          } else {\n            body += this.renderer.checkbox(checked);\n          }\n        }\n\n        while (this.next().type !== 'list_item_end') {\n          body += !loose && this.token.type === 'text'\n            ? this.parseText()\n            : this.tok();\n        }\n        return this.renderer.listitem(body, task, checked);\n      }\n      case 'html': {\n        // TODO parse inline content if parameter markdown=1\n        return this.renderer.html(this.token.text);\n      }\n      case 'paragraph': {\n        return this.renderer.paragraph(this.inline.output(this.token.text));\n      }\n      case 'text': {\n        return this.renderer.paragraph(this.parseText());\n      }\n      default: {\n        const errMsg = 'Token with \"' + this.token.type + '\" type was not found.';\n        if (this.options.silent) {\n          console.log(errMsg);\n        } else {\n          throw new Error(errMsg);\n        }\n      }\n    }\n  };\n};\n","const { defaults } = require('./defaults.js');\nconst {\n  cleanUrl,\n  escape\n} = require('./helpers.js');\n\n/**\n * Renderer\n */\nmodule.exports = class Renderer {\n  constructor(options) {\n    this.options = options || defaults;\n  }\n\n  code(code, infostring, escaped) {\n    const lang = (infostring || '').match(/\\S*/)[0];\n    if (this.options.highlight) {\n      const out = this.options.highlight(code, lang);\n      if (out != null && out !== code) {\n        escaped = true;\n        code = out;\n      }\n    }\n\n    if (!lang) {\n      return '<pre><code>'\n        + (escaped ? code : escape(code, true))\n        + '</code></pre>';\n    }\n\n    return '<pre><code class=\"'\n      + this.options.langPrefix\n      + escape(lang, true)\n      + '\">'\n      + (escaped ? code : escape(code, true))\n      + '</code></pre>\\n';\n  };\n\n  blockquote(quote) {\n    return '<blockquote>\\n' + quote + '</blockquote>\\n';\n  };\n\n  html(html) {\n    return html;\n  };\n\n  heading(text, level, raw, slugger) {\n    if (this.options.headerIds) {\n      return '<h'\n        + level\n        + ' id=\"'\n        + this.options.headerPrefix\n        + slugger.slug(raw)\n        + '\">'\n        + text\n        + '</h'\n        + level\n        + '>\\n';\n    }\n    // ignore IDs\n    return '<h' + level + '>' + text + '</h' + level + '>\\n';\n  };\n\n  hr() {\n    return this.options.xhtml ? '<hr/>\\n' : '<hr>\\n';\n  };\n\n  list(body, ordered, start) {\n    const type = ordered ? 'ol' : 'ul',\n      startatt = (ordered && start !== 1) ? (' start=\"' + start + '\"') : '';\n    return '<' + type + startatt + '>\\n' + body + '</' + type + '>\\n';\n  };\n\n  listitem(text) {\n    return '<li>' + text + '</li>\\n';\n  };\n\n  checkbox(checked) {\n    return '<input '\n      + (checked ? 'checked=\"\" ' : '')\n      + 'disabled=\"\" type=\"checkbox\"'\n      + (this.options.xhtml ? ' /' : '')\n      + '> ';\n  };\n\n  paragraph(text) {\n    return '<p>' + text + '</p>\\n';\n  };\n\n  table(header, body) {\n    if (body) body = '<tbody>' + body + '</tbody>';\n\n    return '<table>\\n'\n      + '<thead>\\n'\n      + header\n      + '</thead>\\n'\n      + body\n      + '</table>\\n';\n  };\n\n  tablerow(content) {\n    return '<tr>\\n' + content + '</tr>\\n';\n  };\n\n  tablecell(content, flags) {\n    const type = flags.header ? 'th' : 'td';\n    const tag = flags.align\n      ? '<' + type + ' align=\"' + flags.align + '\">'\n      : '<' + type + '>';\n    return tag + content + '</' + type + '>\\n';\n  };\n\n  // span level renderer\n  strong(text) {\n    return '<strong>' + text + '</strong>';\n  };\n\n  em(text) {\n    return '<em>' + text + '</em>';\n  };\n\n  codespan(text) {\n    return '<code>' + text + '</code>';\n  };\n\n  br() {\n    return this.options.xhtml ? '<br/>' : '<br>';\n  };\n\n  del(text) {\n    return '<del>' + text + '</del>';\n  };\n\n  link(href, title, text) {\n    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);\n    if (href === null) {\n      return text;\n    }\n    let out = '<a href=\"' + escape(href) + '\"';\n    if (title) {\n      out += ' title=\"' + title + '\"';\n    }\n    out += '>' + text + '</a>';\n    return out;\n  };\n\n  image(href, title, text) {\n    href = cleanUrl(this.options.sanitize, this.options.baseUrl, href);\n    if (href === null) {\n      return text;\n    }\n\n    let out = '<img src=\"' + href + '\" alt=\"' + text + '\"';\n    if (title) {\n      out += ' title=\"' + title + '\"';\n    }\n    out += this.options.xhtml ? '/>' : '>';\n    return out;\n  };\n\n  text(text) {\n    return text;\n  };\n};\n","/**\n * Slugger generates header id\n */\nmodule.exports = class Slugger {\n  constructor() {\n    this.seen = {};\n  }\n\n  /**\n   * Convert string to unique id\n   */\n  slug(value) {\n    let slug = value\n      .toLowerCase()\n      .trim()\n      .replace(/[\\u2000-\\u206F\\u2E00-\\u2E7F\\\\'!\"#$%&()*+,./:;<=>?@[\\]^`{|}~]/g, '')\n      .replace(/\\s/g, '-');\n\n    if (this.seen.hasOwnProperty(slug)) {\n      const originalSlug = slug;\n      do {\n        this.seen[originalSlug]++;\n        slug = originalSlug + '-' + this.seen[originalSlug];\n      } while (this.seen.hasOwnProperty(slug));\n    }\n    this.seen[slug] = 0;\n\n    return slug;\n  };\n};\n","/**\n * TextRenderer\n * returns only the textual part of the token\n */\nmodule.exports = class TextRenderer {\n  // no need for block level renderers\n  strong(text) {\n    return text;\n  }\n\n  em(text) {\n    return text;\n  }\n\n  codespan(text) {\n    return text;\n  }\n\n  del(text) {\n    return text;\n  }\n\n  text(text) {\n    return text;\n  }\n\n  link(href, title, text) {\n    return '' + text;\n  }\n\n  image(href, title, text) {\n    return '' + text;\n  }\n\n  br() {\n    return '';\n  }\n};\n","function getDefaults() {\n  return {\n    baseUrl: null,\n    breaks: false,\n    gfm: true,\n    headerIds: true,\n    headerPrefix: '',\n    highlight: null,\n    langPrefix: 'language-',\n    mangle: true,\n    pedantic: false,\n    renderer: null,\n    sanitize: false,\n    sanitizer: null,\n    silent: false,\n    smartLists: false,\n    smartypants: false,\n    xhtml: false\n  };\n}\n\nfunction changeDefaults(newDefaults) {\n  module.exports.defaults = newDefaults;\n}\n\nmodule.exports = {\n  defaults: getDefaults(),\n  getDefaults,\n  changeDefaults\n};\n","/**\n * Helpers\n */\nconst escapeTest = /[&<>\"']/;\nconst escapeReplace = /[&<>\"']/g;\nconst escapeTestNoEncode = /[<>\"']|&(?!#?\\w+;)/;\nconst escapeReplaceNoEncode = /[<>\"']|&(?!#?\\w+;)/g;\nconst escapeReplacements = {\n  '&': '&amp;',\n  '<': '&lt;',\n  '>': '&gt;',\n  '\"': '&quot;',\n  \"'\": '&#39;'\n};\nconst getEscapeReplacement = (ch) => escapeReplacements[ch];\nfunction escape(html, encode) {\n  if (encode) {\n    if (escapeTest.test(html)) {\n      return html.replace(escapeReplace, getEscapeReplacement);\n    }\n  } else {\n    if (escapeTestNoEncode.test(html)) {\n      return html.replace(escapeReplaceNoEncode, getEscapeReplacement);\n    }\n  }\n\n  return html;\n}\n\nconst unescapeTest = /&(#(?:\\d+)|(?:#x[0-9A-Fa-f]+)|(?:\\w+));?/ig;\n\nfunction unescape(html) {\n  // explicitly match decimal, hex, and named HTML entities\n  return html.replace(unescapeTest, (_, n) => {\n    n = n.toLowerCase();\n    if (n === 'colon') return ':';\n    if (n.charAt(0) === '#') {\n      return n.charAt(1) === 'x'\n        ? String.fromCharCode(parseInt(n.substring(2), 16))\n        : String.fromCharCode(+n.substring(1));\n    }\n    return '';\n  });\n}\n\nconst caret = /(^|[^\\[])\\^/g;\nfunction edit(regex, opt) {\n  regex = regex.source || regex;\n  opt = opt || '';\n  const obj = {\n    replace: (name, val) => {\n      val = val.source || val;\n      val = val.replace(caret, '$1');\n      regex = regex.replace(name, val);\n      return obj;\n    },\n    getRegex: () => {\n      return new RegExp(regex, opt);\n    }\n  };\n  return obj;\n}\n\nconst nonWordAndColonTest = /[^\\w:]/g;\nconst originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;\nfunction cleanUrl(sanitize, base, href) {\n  if (sanitize) {\n    let prot;\n    try {\n      prot = decodeURIComponent(unescape(href))\n        .replace(nonWordAndColonTest, '')\n        .toLowerCase();\n    } catch (e) {\n      return null;\n    }\n    if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {\n      return null;\n    }\n  }\n  if (base && !originIndependentUrl.test(href)) {\n    href = resolveUrl(base, href);\n  }\n  try {\n    href = encodeURI(href).replace(/%25/g, '%');\n  } catch (e) {\n    return null;\n  }\n  return href;\n}\n\nconst baseUrls = {};\nconst justDomain = /^[^:]+:\\/*[^/]*$/;\nconst protocol = /^([^:]+:)[\\s\\S]*$/;\nconst domain = /^([^:]+:\\/*[^/]*)[\\s\\S]*$/;\n\nfunction resolveUrl(base, href) {\n  if (!baseUrls[' ' + base]) {\n    // we can ignore everything in base after the last slash of its path component,\n    // but we might need to add _that_\n    // https://tools.ietf.org/html/rfc3986#section-3\n    if (justDomain.test(base)) {\n      baseUrls[' ' + base] = base + '/';\n    } else {\n      baseUrls[' ' + base] = rtrim(base, '/', true);\n    }\n  }\n  base = baseUrls[' ' + base];\n  const relativeBase = base.indexOf(':') === -1;\n\n  if (href.substring(0, 2) === '//') {\n    if (relativeBase) {\n      return href;\n    }\n    return base.replace(protocol, '$1') + href;\n  } else if (href.charAt(0) === '/') {\n    if (relativeBase) {\n      return href;\n    }\n    return base.replace(domain, '$1') + href;\n  } else {\n    return base + href;\n  }\n}\n\nconst noopTest = { exec: function noopTest() {} };\n\nfunction merge(obj) {\n  let i = 1,\n    target,\n    key;\n\n  for (; i < arguments.length; i++) {\n    target = arguments[i];\n    for (key in target) {\n      if (Object.prototype.hasOwnProperty.call(target, key)) {\n        obj[key] = target[key];\n      }\n    }\n  }\n\n  return obj;\n}\n\nfunction splitCells(tableRow, count) {\n  // ensure that every cell-delimiting pipe has a space\n  // before it to distinguish it from an escaped pipe\n  const row = tableRow.replace(/\\|/g, (match, offset, str) => {\n      let escaped = false,\n        curr = offset;\n      while (--curr >= 0 && str[curr] === '\\\\') escaped = !escaped;\n      if (escaped) {\n        // odd number of slashes means | is escaped\n        // so we leave it alone\n        return '|';\n      } else {\n        // add space before unescaped |\n        return ' |';\n      }\n    }),\n    cells = row.split(/ \\|/);\n  let i = 0;\n\n  if (cells.length > count) {\n    cells.splice(count);\n  } else {\n    while (cells.length < count) cells.push('');\n  }\n\n  for (; i < cells.length; i++) {\n    // leading or trailing whitespace is ignored per the gfm spec\n    cells[i] = cells[i].trim().replace(/\\\\\\|/g, '|');\n  }\n  return cells;\n}\n\n// Remove trailing 'c's. Equivalent to str.replace(/c*$/, '').\n// /c*$/ is vulnerable to REDOS.\n// invert: Remove suffix of non-c chars instead. Default falsey.\nfunction rtrim(str, c, invert) {\n  const l = str.length;\n  if (l === 0) {\n    return '';\n  }\n\n  // Length of suffix matching the invert condition.\n  let suffLen = 0;\n\n  // Step left until we fail to match the invert condition.\n  while (suffLen < l) {\n    const currChar = str.charAt(l - suffLen - 1);\n    if (currChar === c && !invert) {\n      suffLen++;\n    } else if (currChar !== c && invert) {\n      suffLen++;\n    } else {\n      break;\n    }\n  }\n\n  return str.substr(0, l - suffLen);\n}\n\nfunction findClosingBracket(str, b) {\n  if (str.indexOf(b[1]) === -1) {\n    return -1;\n  }\n  const l = str.length;\n  let level = 0,\n    i = 0;\n  for (; i < l; i++) {\n    if (str[i] === '\\\\') {\n      i++;\n    } else if (str[i] === b[0]) {\n      level++;\n    } else if (str[i] === b[1]) {\n      level--;\n      if (level < 0) {\n        return i;\n      }\n    }\n  }\n  return -1;\n}\n\nfunction checkSanitizeDeprecation(opt) {\n  if (opt && opt.sanitize && !opt.silent) {\n    console.warn('marked(): sanitize and sanitizer parameters are deprecated since version 0.7.0, should not be used and will be removed in the future. Read more here: https://marked.js.org/#/USING_ADVANCED.md#options');\n  }\n}\n\nmodule.exports = {\n  escape,\n  unescape,\n  edit,\n  cleanUrl,\n  resolveUrl,\n  noopTest,\n  merge,\n  splitCells,\n  rtrim,\n  findClosingBracket,\n  checkSanitizeDeprecation\n};\n","const Lexer = require('./Lexer.js');\nconst Parser = require('./Parser.js');\nconst Renderer = require('./Renderer.js');\nconst TextRenderer = require('./TextRenderer.js');\nconst InlineLexer = require('./InlineLexer.js');\nconst Slugger = require('./Slugger.js');\nconst {\n  merge,\n  checkSanitizeDeprecation,\n  escape\n} = require('./helpers.js');\nconst {\n  getDefaults,\n  changeDefaults,\n  defaults\n} = require('./defaults.js');\n\n/**\n * Marked\n */\nfunction marked(src, opt, callback) {\n  // throw error in case of non string input\n  if (typeof src === 'undefined' || src === null) {\n    throw new Error('marked(): input parameter is undefined or null');\n  }\n  if (typeof src !== 'string') {\n    throw new Error('marked(): input parameter is of type '\n      + Object.prototype.toString.call(src) + ', string expected');\n  }\n\n  if (callback || typeof opt === 'function') {\n    if (!callback) {\n      callback = opt;\n      opt = null;\n    }\n\n    opt = merge({}, marked.defaults, opt || {});\n    checkSanitizeDeprecation(opt);\n    const highlight = opt.highlight;\n    let tokens,\n      pending,\n      i = 0;\n\n    try {\n      tokens = Lexer.lex(src, opt);\n    } catch (e) {\n      return callback(e);\n    }\n\n    pending = tokens.length;\n\n    const done = function(err) {\n      if (err) {\n        opt.highlight = highlight;\n        return callback(err);\n      }\n\n      let out;\n\n      try {\n        out = Parser.parse(tokens, opt);\n      } catch (e) {\n        err = e;\n      }\n\n      opt.highlight = highlight;\n\n      return err\n        ? callback(err)\n        : callback(null, out);\n    };\n\n    if (!highlight || highlight.length < 3) {\n      return done();\n    }\n\n    delete opt.highlight;\n\n    if (!pending) return done();\n\n    for (; i < tokens.length; i++) {\n      (function(token) {\n        if (token.type !== 'code') {\n          return --pending || done();\n        }\n        return highlight(token.text, token.lang, function(err, code) {\n          if (err) return done(err);\n          if (code == null || code === token.text) {\n            return --pending || done();\n          }\n          token.text = code;\n          token.escaped = true;\n          --pending || done();\n        });\n      })(tokens[i]);\n    }\n\n    return;\n  }\n  try {\n    opt = merge({}, marked.defaults, opt || {});\n    checkSanitizeDeprecation(opt);\n    return Parser.parse(Lexer.lex(src, opt), opt);\n  } catch (e) {\n    e.message += '\\nPlease report this to https://github.com/markedjs/marked.';\n    if ((opt || marked.defaults).silent) {\n      return '<p>An error occurred:</p><pre>'\n        + escape(e.message + '', true)\n        + '</pre>';\n    }\n    throw e;\n  }\n}\n\n/**\n * Options\n */\n\nmarked.options =\nmarked.setOptions = function(opt) {\n  merge(marked.defaults, opt);\n  changeDefaults(marked.defaults);\n  return marked;\n};\n\nmarked.getDefaults = getDefaults;\n\nmarked.defaults = defaults;\n\n/**\n * Expose\n */\n\nmarked.Parser = Parser;\nmarked.parser = Parser.parse;\n\nmarked.Renderer = Renderer;\nmarked.TextRenderer = TextRenderer;\n\nmarked.Lexer = Lexer;\nmarked.lexer = Lexer.lex;\n\nmarked.InlineLexer = InlineLexer;\nmarked.inlineLexer = InlineLexer.output;\n\nmarked.Slugger = Slugger;\n\nmarked.parse = marked;\n\nmodule.exports = marked;\n","const {\n  noopTest,\n  edit,\n  merge\n} = require('./helpers.js');\n\n/**\n * Block-Level Grammar\n */\nconst block = {\n  newline: /^\\n+/,\n  code: /^( {4}[^\\n]+\\n*)+/,\n  fences: /^ {0,3}(`{3,}|~{3,})([^`~\\n]*)\\n(?:|([\\s\\S]*?)\\n)(?: {0,3}\\1[~`]* *(?:\\n+|$)|$)/,\n  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$)/,\n  heading: /^ {0,3}(#{1,6}) +([^\\n]*?)(?: +#+)? *(?:\\n+|$)/,\n  blockquote: /^( {0,3}> ?(paragraph|[^\\n]*)(?:\\n|$))+/,\n  list: /^( {0,3})(bull) [\\s\\S]+?(?:hr|def|\\n{2,}(?! )(?!\\1bull )\\n*|\\s*$)/,\n  html: '^ {0,3}(?:' // optional indentation\n    + '<(script|pre|style)[\\\\s>][\\\\s\\\\S]*?(?:</\\\\1>[^\\\\n]*\\\\n+|$)' // (1)\n    + '|comment[^\\\\n]*(\\\\n+|$)' // (2)\n    + '|<\\\\?[\\\\s\\\\S]*?\\\\?>\\\\n*' // (3)\n    + '|<![A-Z][\\\\s\\\\S]*?>\\\\n*' // (4)\n    + '|<!\\\\[CDATA\\\\[[\\\\s\\\\S]*?\\\\]\\\\]>\\\\n*' // (5)\n    + '|</?(tag)(?: +|\\\\n|/?>)[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (6)\n    + '|<(?!script|pre|style)([a-z][\\\\w-]*)(?:attribute)*? */?>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (7) open tag\n    + '|</(?!script|pre|style)[a-z][\\\\w-]*\\\\s*>(?=[ \\\\t]*(?:\\\\n|$))[\\\\s\\\\S]*?(?:\\\\n{2,}|$)' // (7) closing tag\n    + ')',\n  def: /^ {0,3}\\[(label)\\]: *\\n? *<?([^\\s>]+)>?(?:(?: +\\n? *| *\\n *)(title))? *(?:\\n+|$)/,\n  nptable: noopTest,\n  table: noopTest,\n  lheading: /^([^\\n]+)\\n {0,3}(=+|-+) *(?:\\n+|$)/,\n  // regex template, placeholders will be replaced according to different paragraph\n  // interruption rules of commonmark and the original markdown spec:\n  _paragraph: /^([^\\n]+(?:\\n(?!hr|heading|lheading|blockquote|fences|list|html)[^\\n]+)*)/,\n  text: /^[^\\n]+/\n};\n\nblock._label = /(?!\\s*\\])(?:\\\\[\\[\\]]|[^\\[\\]])+/;\nblock._title = /(?:\"(?:\\\\\"?|[^\"\\\\])*\"|'[^'\\n]*(?:\\n[^'\\n]+)*\\n?'|\\([^()]*\\))/;\nblock.def = edit(block.def)\n  .replace('label', block._label)\n  .replace('title', block._title)\n  .getRegex();\n\nblock.bullet = /(?:[*+-]|\\d{1,9}\\.)/;\nblock.item = /^( *)(bull) ?[^\\n]*(?:\\n(?!\\1bull ?)[^\\n]*)*/;\nblock.item = edit(block.item, 'gm')\n  .replace(/bull/g, block.bullet)\n  .getRegex();\n\nblock.list = edit(block.list)\n  .replace(/bull/g, block.bullet)\n  .replace('hr', '\\\\n+(?=\\\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\\\* *){3,})(?:\\\\n+|$))')\n  .replace('def', '\\\\n+(?=' + block.def.source + ')')\n  .getRegex();\n\nblock._tag = 'address|article|aside|base|basefont|blockquote|body|caption'\n  + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption'\n  + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe'\n  + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option'\n  + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr'\n  + '|track|ul';\nblock._comment = /<!--(?!-?>)[\\s\\S]*?-->/;\nblock.html = edit(block.html, 'i')\n  .replace('comment', block._comment)\n  .replace('tag', block._tag)\n  .replace('attribute', / +[a-zA-Z:_][\\w.:-]*(?: *= *\"[^\"\\n]*\"| *= *'[^'\\n]*'| *= *[^\\s\"'=<>`]+)?/)\n  .getRegex();\n\nblock.paragraph = edit(block._paragraph)\n  .replace('hr', block.hr)\n  .replace('heading', ' {0,3}#{1,6} +')\n  .replace('|lheading', '') // setex headings don't interrupt commonmark paragraphs\n  .replace('blockquote', ' {0,3}>')\n  .replace('fences', ' {0,3}(?:`{3,}|~{3,})[^`\\\\n]*\\\\n')\n  .replace('list', ' {0,3}(?:[*+-]|1[.)]) ') // only lists starting from 1 can interrupt\n  .replace('html', '</?(?:tag)(?: +|\\\\n|/?>)|<(?:script|pre|style|!--)')\n  .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks\n  .getRegex();\n\nblock.blockquote = edit(block.blockquote)\n  .replace('paragraph', block.paragraph)\n  .getRegex();\n\n/**\n * Normal Block Grammar\n */\n\nblock.normal = merge({}, block);\n\n/**\n * GFM Block Grammar\n */\n\nblock.gfm = merge({}, block.normal, {\n  nptable: /^ *([^|\\n ].*\\|.*)\\n *([-:]+ *\\|[-| :]*)(?:\\n((?:.*[^>\\n ].*(?:\\n|$))*)\\n*|$)/,\n  table: /^ *\\|(.+)\\n *\\|?( *[-:]+[-| :]*)(?:\\n((?: *[^>\\n ].*(?:\\n|$))*)\\n*|$)/\n});\n\n/**\n * Pedantic grammar (original John Gruber's loose markdown specification)\n */\n\nblock.pedantic = merge({}, block.normal, {\n  html: edit(\n    '^ *(?:comment *(?:\\\\n|\\\\s*$)'\n    + '|<(tag)[\\\\s\\\\S]+?</\\\\1> *(?:\\\\n{2,}|\\\\s*$)' // closed tag\n    + '|<tag(?:\"[^\"]*\"|\\'[^\\']*\\'|\\\\s[^\\'\"/>\\\\s]*)*?/?> *(?:\\\\n{2,}|\\\\s*$))')\n    .replace('comment', block._comment)\n    .replace(/tag/g, '(?!(?:'\n      + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code|var|samp|kbd|sub'\n      + '|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo|span|br|wbr|ins|del|img)'\n      + '\\\\b)\\\\w+(?!:|[^\\\\w\\\\s@]*@)\\\\b')\n    .getRegex(),\n  def: /^ *\\[([^\\]]+)\\]: *<?([^\\s>]+)>?(?: +([\"(][^\\n]+[\")]))? *(?:\\n+|$)/,\n  heading: /^ *(#{1,6}) *([^\\n]+?) *(?:#+ *)?(?:\\n+|$)/,\n  fences: noopTest, // fences not supported\n  paragraph: edit(block.normal._paragraph)\n    .replace('hr', block.hr)\n    .replace('heading', ' *#{1,6} *[^\\n]')\n    .replace('lheading', block.lheading)\n    .replace('blockquote', ' {0,3}>')\n    .replace('|fences', '')\n    .replace('|list', '')\n    .replace('|html', '')\n    .getRegex()\n});\n\n/**\n * Inline-Level Grammar\n */\nconst inline = {\n  escape: /^\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/,\n  autolink: /^<(scheme:[^\\s\\x00-\\x1f<>]*|email)>/,\n  url: noopTest,\n  tag: '^comment'\n    + '|^</[a-zA-Z][\\\\w:-]*\\\\s*>' // self-closing tag\n    + '|^<[a-zA-Z][\\\\w-]*(?:attribute)*?\\\\s*/?>' // open tag\n    + '|^<\\\\?[\\\\s\\\\S]*?\\\\?>' // processing instruction, e.g. <?php ?>\n    + '|^<![a-zA-Z]+\\\\s[\\\\s\\\\S]*?>' // declaration, e.g. <!DOCTYPE html>\n    + '|^<!\\\\[CDATA\\\\[[\\\\s\\\\S]*?\\\\]\\\\]>', // CDATA section\n  link: /^!?\\[(label)\\]\\(\\s*(href)(?:\\s+(title))?\\s*\\)/,\n  reflink: /^!?\\[(label)\\]\\[(?!\\s*\\])((?:\\\\[\\[\\]]?|[^\\[\\]\\\\])+)\\]/,\n  nolink: /^!?\\[(?!\\s*\\])((?:\\[[^\\[\\]]*\\]|\\\\[\\[\\]]|[^\\[\\]])*)\\](?:\\[\\])?/,\n  strong: /^__([^\\s_])__(?!_)|^\\*\\*([^\\s*])\\*\\*(?!\\*)|^__([^\\s][\\s\\S]*?[^\\s])__(?!_)|^\\*\\*([^\\s][\\s\\S]*?[^\\s])\\*\\*(?!\\*)/,\n  em: /^_([^\\s_])_(?!_)|^\\*([^\\s*<\\[])\\*(?!\\*)|^_([^\\s<][\\s\\S]*?[^\\s_])_(?!_|[^\\spunctuation])|^_([^\\s_<][\\s\\S]*?[^\\s])_(?!_|[^\\spunctuation])|^\\*([^\\s<\"][\\s\\S]*?[^\\s\\*])\\*(?!\\*|[^\\spunctuation])|^\\*([^\\s*\"<\\[][\\s\\S]*?[^\\s])\\*(?!\\*)/,\n  code: /^(`+)([^`]|[^`][\\s\\S]*?[^`])\\1(?!`)/,\n  br: /^( {2,}|\\\\)\\n(?!\\s*$)/,\n  del: noopTest,\n  text: /^(`+|[^`])(?:[\\s\\S]*?(?:(?=[\\\\<!\\[`*]|\\b_|$)|[^ ](?= {2,}\\n))|(?= {2,}\\n))/\n};\n\n// list of punctuation marks from common mark spec\n// without ` and ] to workaround Rule 17 (inline code blocks/links)\ninline._punctuation = '!\"#$%&\\'()*+,\\\\-./:;<=>?@\\\\[^_{|}~';\ninline.em = edit(inline.em).replace(/punctuation/g, inline._punctuation).getRegex();\n\ninline._escapes = /\\\\([!\"#$%&'()*+,\\-./:;<=>?@\\[\\]\\\\^_`{|}~])/g;\n\ninline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;\ninline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;\ninline.autolink = edit(inline.autolink)\n  .replace('scheme', inline._scheme)\n  .replace('email', inline._email)\n  .getRegex();\n\ninline._attribute = /\\s+[a-zA-Z:_][\\w.:-]*(?:\\s*=\\s*\"[^\"]*\"|\\s*=\\s*'[^']*'|\\s*=\\s*[^\\s\"'=<>`]+)?/;\n\ninline.tag = edit(inline.tag)\n  .replace('comment', block._comment)\n  .replace('attribute', inline._attribute)\n  .getRegex();\n\ninline._label = /(?:\\[[^\\[\\]]*\\]|\\\\.|`[^`]*`|[^\\[\\]\\\\`])*?/;\ninline._href = /<(?:\\\\[<>]?|[^\\s<>\\\\])*>|[^\\s\\x00-\\x1f]*/;\ninline._title = /\"(?:\\\\\"?|[^\"\\\\])*\"|'(?:\\\\'?|[^'\\\\])*'|\\((?:\\\\\\)?|[^)\\\\])*\\)/;\n\ninline.link = edit(inline.link)\n  .replace('label', inline._label)\n  .replace('href', inline._href)\n  .replace('title', inline._title)\n  .getRegex();\n\ninline.reflink = edit(inline.reflink)\n  .replace('label', inline._label)\n  .getRegex();\n\n/**\n * Normal Inline Grammar\n */\n\ninline.normal = merge({}, inline);\n\n/**\n * Pedantic Inline Grammar\n */\n\ninline.pedantic = merge({}, inline.normal, {\n  strong: /^__(?=\\S)([\\s\\S]*?\\S)__(?!_)|^\\*\\*(?=\\S)([\\s\\S]*?\\S)\\*\\*(?!\\*)/,\n  em: /^_(?=\\S)([\\s\\S]*?\\S)_(?!_)|^\\*(?=\\S)([\\s\\S]*?\\S)\\*(?!\\*)/,\n  link: edit(/^!?\\[(label)\\]\\((.*?)\\)/)\n    .replace('label', inline._label)\n    .getRegex(),\n  reflink: edit(/^!?\\[(label)\\]\\s*\\[([^\\]]*)\\]/)\n    .replace('label', inline._label)\n    .getRegex()\n});\n\n/**\n * GFM Inline Grammar\n */\n\ninline.gfm = merge({}, inline.normal, {\n  escape: edit(inline.escape).replace('])', '~|])').getRegex(),\n  _extended_email: /[A-Za-z0-9._+-]+(@)[a-zA-Z0-9-_]+(?:\\.[a-zA-Z0-9-_]*[a-zA-Z0-9])+(?![-_])/,\n  url: /^((?:ftp|https?):\\/\\/|www\\.)(?:[a-zA-Z0-9\\-]+\\.?)+[^\\s<]*|^email/,\n  _backpedal: /(?:[^?!.,:;*_~()&]+|\\([^)]*\\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,\n  del: /^~+(?=\\S)([\\s\\S]*?\\S)~+/,\n  text: /^(`+|[^`])(?:[\\s\\S]*?(?:(?=[\\\\<!\\[`*~]|\\b_|https?:\\/\\/|ftp:\\/\\/|www\\.|$)|[^ ](?= {2,}\\n)|[^a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-](?=[a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-]+@))|(?= {2,}\\n|[a-zA-Z0-9.!#$%&'*+\\/=?_`{\\|}~-]+@))/\n});\n\ninline.gfm.url = edit(inline.gfm.url, 'i')\n  .replace('email', inline.gfm._extended_email)\n  .getRegex();\n/**\n * GFM + Line Breaks Inline Grammar\n */\n\ninline.breaks = merge({}, inline.gfm, {\n  br: edit(inline.br).replace('{2,}', '*').getRegex(),\n  text: edit(inline.gfm.text)\n    .replace('\\\\b_', '\\\\b_| {2,}\\\\n')\n    .replace(/\\{2,\\}/g, '*')\n    .getRegex()\n});\n\nmodule.exports = {\n  block,\n  inline\n};\n","var render = function() {\n  var _vm = this\n  var _h = _vm.$createElement\n  var _c = _vm._self._c || _h\n  return _c(\"div\", [\n    _c(\"div\", { staticClass: \"container\" }, [\n      _vm._m(0),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        { staticClass: \"form-group\" },\n        [\n          _c(\"markdown-editor\", {\n            ref: \"md\",\n            model: {\n              value: _vm.value,\n              callback: function($$v) {\n                _vm.value = $$v\n              },\n              expression: \"value\"\n            }\n          })\n        ],\n        1\n      ),\n      _vm._v(\" \"),\n      _c(\"div\", { staticClass: \"form-group\" }, [\n        _c(\n          \"button\",\n          { staticClass: \"btn btn-primary\", on: { click: _vm.val } },\n          [_vm._v(\"Change\")]\n        ),\n        _vm._v(\" \"),\n        _c(\n          \"button\",\n          { staticClass: \"btn btn-primary\", on: { click: _vm.replace } },\n          [_vm._v(\"Handle\")]\n        )\n      ]),\n      _vm._v(\" \"),\n      _c(\"div\", { staticClass: \"form-group\" }, [\n        _c(\"pre\", [_c(\"code\", [_vm._v(_vm._s(_vm.value))])])\n      ]),\n      _vm._v(\" \"),\n      _vm._m(1),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        { staticClass: \"form-group\" },\n        [\n          _c(\"markdown-editor\", {\n            attrs: { toolbar: \"bold italic upload\", extend: _vm.custom }\n          })\n        ],\n        1\n      ),\n      _vm._v(\" \"),\n      _vm._m(2),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        { staticClass: \"form-group\" },\n        [_c(\"markdown-editor\", { attrs: { theme: \"success\" } })],\n        1\n      ),\n      _vm._v(\" \"),\n      _vm._m(3),\n      _vm._v(\" \"),\n      _c(\n        \"div\",\n        { staticClass: \"form-group\" },\n        [_c(\"markdown-editor\", { attrs: { height: \"auto\", toolbar: \"\" } })],\n        1\n      )\n    ]),\n    _vm._v(\" \"),\n    _vm._m(4)\n  ])\n}\nvar staticRenderFns = [\n  function() {\n    var _vm = this\n    var _h = _vm.$createElement\n    var _c = _vm._self._c || _h\n    return _c(\"header\", [\n      _c(\"h1\", [_vm._v(\"v-markdown-editor\")]),\n      _vm._v(\" \"),\n      _c(\"h4\", [_vm._v(\"Markdown Editor component for Vue.js\")])\n    ])\n  },\n  function() {\n    var _vm = this\n    var _h = _vm.$createElement\n    var _c = _vm._self._c || _h\n    return _c(\"pre\", [\n      _c(\"code\", [\n        _vm._v(\n          '<markdown-editor toolbar=\"bold italic upload\" :extend=\"custom\"></markdown-editor>'\n        )\n      ])\n    ])\n  },\n  function() {\n    var _vm = this\n    var _h = _vm.$createElement\n    var _c = _vm._self._c || _h\n    return _c(\"pre\", [\n      _c(\"code\", [\n        _vm._v('<markdown-editor theme=\"success\"></markdown-editor>')\n      ])\n    ])\n  },\n  function() {\n    var _vm = this\n    var _h = _vm.$createElement\n    var _c = _vm._self._c || _h\n    return _c(\"pre\", [\n      _c(\"code\", [\n        _vm._v(\"<markdown-editor height=\\\"auto\\\" toolbar=''></markdown-editor>\")\n      ])\n    ])\n  },\n  function() {\n    var _vm = this\n    var _h = _vm.$createElement\n    var _c = _vm._self._c || _h\n    return _c(\"footer\", [\n      _c(\"p\", [\n        _c(\n          \"a\",\n          {\n            staticClass: \"social-icon\",\n            attrs: {\n              href: \"https://github.com/nasa8x/v-markdown-editor\",\n              target: \"_blank\"\n            }\n          },\n          [_c(\"i\", { staticClass: \"fa-3x fab fa-github-square\" })]\n        )\n      ]),\n      _vm._v(\" \"),\n      _c(\"p\", [\n        _vm._v(\"Themed by \"),\n        _c(\n          \"a\",\n          {\n            attrs: { href: \"http://on.morioh.net/96d5d36367\", target: \"_blank\" }\n          },\n          [_vm._v(\"Morioh Theme\")]\n        ),\n        _c(\"br\"),\n        _vm._v(\"\\n            Made Love by \"),\n        _c(\n          \"a\",\n          { attrs: { href: \"https://morioh.com/@5c22e47440738156a7078a19\" } },\n          [_vm._v(\"Nasa8x\")]\n        )\n      ])\n    ])\n  }\n]\nrender._withStripped = true\n\nexport { render, staticRenderFns }","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () { injectStyles.call(this, this.$root.$options.shadowRoot) }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functional component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? [].concat(existing, hook)\n        : [hook]\n    }\n  }\n\n  return {\n    exports: scriptExports,\n    options: options\n  }\n}\n","module.exports = function(module) {\n\tif (!module.webpackPolyfill) {\n\t\tmodule.deprecate = function() {};\n\t\tmodule.paths = [];\n\t\t// module.parent = undefined by default\n\t\tif (!module.children) module.children = [];\n\t\tObject.defineProperty(module, \"loaded\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.l;\n\t\t\t}\n\t\t});\n\t\tObject.defineProperty(module, \"id\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.i;\n\t\t\t}\n\t\t});\n\t\tmodule.webpackPolyfill = 1;\n\t}\n\treturn module;\n};\n","\n\nimport './layout.css';\nimport '../dist/v-markdown-editor.css';\n\nimport Vue from 'vue';\nimport App from './app.vue';\nimport Editor from '../dist';\n\nVue.use(Editor);\n\nnew Vue({\n  el: '#app', \n \n  render: h => h(App)\n})\n","import { render, staticRenderFns } from \"./app.vue?vue&type=template&id=0d4f360b&\"\nimport script from \"./app.vue?vue&type=script&lang=js&\"\nexport * from \"./app.vue?vue&type=script&lang=js&\"\n\n\n/* normalize component */\nimport normalizer from \"!../node_modules/vue-loader/lib/runtime/componentNormalizer.js\"\nvar component = normalizer(\n  script,\n  render,\n  staticRenderFns,\n  false,\n  null,\n  null,\n  null\n  \n)\n\n/* hot reload */\nif (module.hot) {\n  var api = require(\"/Users/nasa8x/nasa/projects/nodejs/v-markdown-editor/node_modules/vue-hot-reload-api/dist/index.js\")\n  api.install(require('vue'))\n  if (api.compatible) {\n    module.hot.accept()\n    if (!api.isRecorded('0d4f360b')) {\n      api.createRecord('0d4f360b', component.options)\n    } else {\n      api.reload('0d4f360b', component.options)\n    }\n    module.hot.accept(\"./app.vue?vue&type=template&id=0d4f360b&\", function () {\n      api.rerender('0d4f360b', {\n        render: render,\n        staticRenderFns: staticRenderFns\n      })\n    })\n  }\n}\ncomponent.options.__file = \"www/app.vue\"\nexport default component.exports","import mod from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./app.vue?vue&type=script&lang=js&\"; export default mod; export * from \"-!../node_modules/babel-loader/lib/index.js!../node_modules/vue-loader/lib/index.js??vue-loader-options!./app.vue?vue&type=script&lang=js&\"","export * from \"-!../node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!../node_modules/vue-loader/lib/index.js??vue-loader-options!./app.vue?vue&type=template&id=0d4f360b&\"","// extracted by mini-css-extract-plugin","module.exports = Vue;"],"sourceRoot":""}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 08f2b72..139fa09 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,299 +1,296 @@
 {
   "name": "v-markdown-editor",
-  "version": "1.1.7",
+  "version": "1.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
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       "dev": true,
       "requires": {
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+        "@babel/highlight": "^7.8.3"
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+      "version": "3.3.11",
+      "resolved": "https://registry.npmjs.org/webpack-cli/-/webpack-cli-3.3.11.tgz",
+      "integrity": "sha512-dXlfuml7xvAFwYUPsrtQAA9e4DOe58gnzSxhgrO/ZM/gyXTBowrsYeubyN4mqGhYdpXMFNyQ6emjJS9M7OBd4g==",
       "dev": true,
       "requires": {
         "chalk": "2.4.2",
@@ -9105,12 +9135,6 @@
           "integrity": "sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ==",
           "dev": true
         },
-        "camelcase": {
-          "version": "5.3.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
-          "dev": true
-        },
         "chalk": {
           "version": "2.4.2",
           "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -9144,13 +9168,28 @@
             "wrap-ansi": "^5.1.0"
           }
         },
-        "find-up": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
-          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
           "dev": true,
           "requires": {
-            "locate-path": "^3.0.0"
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        },
+        "enhanced-resolve": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-4.1.0.tgz",
+          "integrity": "sha512-F/7vkyTtyc/llOIn8oWclcB25KdRaiPBpZYDgJHgh/UHtpgT2p2eldQgtQnLtUvfMKPKxbRaQM/hHkvLHt1Vng==",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "^4.1.2",
+            "memory-fs": "^0.4.0",
+            "tapable": "^1.0.0"
           }
         },
         "get-caller-file": {
@@ -9194,16 +9233,6 @@
             "json5": "^1.0.1"
           }
         },
-        "locate-path": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
-          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
-          "dev": true,
-          "requires": {
-            "p-locate": "^3.0.0",
-            "path-exists": "^3.0.0"
-          }
-        },
         "os-locale": {
           "version": "3.1.0",
           "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-3.1.0.tgz",
@@ -9215,30 +9244,6 @@
             "mem": "^4.0.0"
           }
         },
-        "p-limit": {
-          "version": "2.2.1",
-          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.2.1.tgz",
-          "integrity": "sha512-85Tk+90UCVWvbDavCLKPOLC9vvY8OwEX/RtKF+/1OADJMVlFfEHOiMTPVyxg7mk/dKa+ipdHm0OUkTvCpMTuwg==",
-          "dev": true,
-          "requires": {
-            "p-try": "^2.0.0"
-          }
-        },
-        "p-locate": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
-          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
-          "dev": true,
-          "requires": {
-            "p-limit": "^2.0.0"
-          }
-        },
-        "p-try": {
-          "version": "2.2.0",
-          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
-          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
-          "dev": true
-        },
         "require-main-filename": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
@@ -9311,9 +9316,9 @@
           }
         },
         "yargs-parser": {
-          "version": "13.1.1",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
-          "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+          "version": "13.1.2",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+          "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
           "dev": true,
           "requires": {
             "camelcase": "^5.0.0",
diff --git a/package.json b/package.json
index 430ad01..e34775e 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,9 @@
 {
   "name": "v-markdown-editor",
   "description": "Vue Markdown Editor component for Vue.js",
-  "version": "1.1.8",
+  "version": "1.2.0",
   "author": "Nasa8x",
-  "main": "./dist/index.min.js",
+  "main": "./dist/v-markdown-editor.js",
   "scripts": {
     "dev": "cross-env NODE_ENV=development webpack --progress --watch --colors",
     "prod": "cross-env NODE_ENV=production webpack -p --watch --progress --colors",
@@ -17,7 +17,7 @@
   "bugs": {
     "url": "https://github.com/nasa8x/v-markdown-editor/issues"
   },
-  "homepage": "https://morioh.com/topic/vue-js",
+  "homepage": "https://morioh.com/p/2a1c9c34024b",
   "keywords": [
     "vue markdown editor",
     "markdown editor",
@@ -30,44 +30,44 @@
     "bootstrap markdown editor"
   ],
   "dependencies": {
-    "codemirror": "^5.49.2",
-    "jquery": "^3.4.1",
+    "@codemirror/next": "^0.4.0",
+    "codemirror": "^5.52.0",
     "markdownparser": "^1.1.2",
-    "marked": "^0.7.0",
-    "vue": "^2.6.10"
+    "marked": "^0.8.0",
+    "vue": "^2.6.11"
   },
   "devDependencies": {
-    "@babel/core": "^7.6.4",
-    "@babel/plugin-transform-modules-commonjs": "^7.6.0",
-    "@babel/preset-env": "^7.6.3",
-    "autoprefixer": "^9.7.0",
+    "@babel/core": "^7.8.7",
+    "@babel/plugin-transform-modules-commonjs": "^7.8.3",
+    "@babel/preset-env": "^7.8.7",
+    "autoprefixer": "^9.7.4",
     "babel-loader": "^8.0.6",
     "clean-webpack-plugin": "^3.0.0",
-    "copy-webpack-plugin": "^5.0.4",
+    "copy-webpack-plugin": "^5.1.1",
     "cross-env": "^6.0.3",
-    "css-loader": "^3.2.0",
-    "file-loader": "^4.2.0",
+    "css-loader": "^3.4.2",
+    "file-loader": "^4.3.0",
     "friendly-errors-webpack-plugin": "^1.6.1",
     "html-loader": "^0.5.5",
     "html-webpack-externals-plugin": "^3.8.0",
     "html-webpack-plugin": "^3.0.6",
-    "less": "^3.10.3",
+    "less": "^3.11.1",
     "less-loader": "^5.0.0",
-    "mini-css-extract-plugin": "^0.8.0",
-    "node-sass": "^4.13.0",
+    "mini-css-extract-plugin": "^0.8.2",
+    "node-sass": "^4.13.1",
     "postcss-loader": "^3.0.0",
-    "sass-loader": "^8.0.0",
-    "style-loader": "^1.0.0",
+    "sass-loader": "^8.0.2",
+    "style-loader": "^1.1.3",
     "stylus": "^0.54.7",
     "stylus-loader": "^3.0.1",
     "uglifyjs-webpack-plugin": "^2.2.0",
-    "url-loader": "^2.2.0",
-    "vue-loader": "^15.7.1",
+    "url-loader": "^2.3.0",
+    "vue-loader": "^15.9.0",
     "vue-ssr-webpack-plugin": "^3.0.0",
     "vue-style-loader": "^4.1.2",
-    "vue-template-compiler": "^2.6.10",
-    "webpack": "^4.41.2",
-    "webpack-cli": "^3.3.9",
+    "vue-template-compiler": "^2.6.11",
+    "webpack": "^4.42.0",
+    "webpack-cli": "^3.3.11",
     "webpack-node-externals": "^1.7.2"
   }
 }
diff --git a/src/editor.vue b/src/editor.vue
index b8a98e8..6d8e238 100644
--- a/src/editor.vue
+++ b/src/editor.vue
@@ -1,16 +1,14 @@
 <template>
-    <div :class="['v-md-container', css,{'v-md-auto-resize': height=='auto' }]" :id="uid('container')">
-        <div :id="uid('toolbar')" class="v-md-toolbar">
+    <div :class="['v-md-container', css,{'v-md-auto-resize': height=='auto', 'v-md-fullscreen': fullScreen }]">
+        <div class="v-md-toolbar" v-if="toolbars.length>0">
             <div class="btn-group mr-3" role="group" v-for="group in toolbars">
-                <button type="button" :id="uid(i.id)" :title="i.title" :class="[buttonClass, {'ready': i.ready}]"
-                    v-on:click="command(i.cmd)" v-for="i in group"><i :class="i.className"
-                        aria-hidden="true"></i></button>
+                <button type="button" :title="i.title" :class="'btn btn-'+theme" v-on:click="command(i.cmd)"
+                    :disabled="preview && !i.ready" v-for="i in group"><i :class="i.ico"></i></button>
             </div>
         </div>
-        <div class="v-md-wrapper">
-            <textarea :id="uid('input')" v-model="value" :name="name" :style="styles"></textarea>
-            <div class="v-md-preview" :id="uid('html-preview')" v-if="preview" v-html="html">
-            </div>
+        <div class="v-md-wrapper" v-on:click="editor.focus()">
+            <textarea class="v-md-editor" :style="styles" :id="id"></textarea>
+            <div class="v-md-preview" v-if="preview" v-html="html"></div>
         </div>
 
     </div>
@@ -20,25 +18,29 @@
 
 <script>
 
-    import 'codemirror/lib/codemirror.css';
-    import './index.css';
+
 
     import Markdown from 'markdownparser';
     import Marked from 'marked';
+
     import CodeMirror from 'codemirror';
     import 'codemirror/addon/display/fullscreen.js';
     import 'codemirror/mode/markdown/markdown.js';
-    import 'codemirror/mode/gfm/gfm.js';
     import 'codemirror/addon/display/placeholder.js';
-    import 'codemirror/addon/selection/active-line.js';
 
 
     export default {
         props: {
 
-            css: {
-                type: String
+            id: {
+                type: String,
+                default: () => {
+                    return 'v-md-editor-' + Math.random().toString(16).substr(2, 9);
+                }
             },
+
+            css: { type: String },
+
             width: {
                 type: String,
                 default: '100%'
@@ -51,6 +53,8 @@
                 type: String,
                 default: 'clean redo undo | bold italic strikethrough heading | image link | numlist bullist code quote | preview fullscreen'
             },
+
+
             extend: {
                 type: Object
 
@@ -61,145 +65,128 @@
 
                     return {
 
+                        "clean": {
+                            cmd: "clean",
+                            ico: "fas fa-remove-format mdi mdi-format-clear",
+                            title: "Html to markdown",
+                            hotkey: 'Shift-Alt-F'
+                        },
+
+                        "undo": {
+                            cmd: "undo",
+                            ico: "fas fa-undo mdi mdi-undo-variant",
+                            title: "Undo",
+                            hotkey: 'Ctrl-Z'
+                        },
+
+                        "redo": {
+                            cmd: "redo",
+                            ico: "fas fa-redo mdi mdi-redo-variant",
+                            title: "Redo",
+                            hotkey: 'Ctrl-Y'
+                        },
+
+                        "bullist": {
+                            cmd: "bullist",
+                            ico: "fas fa-list-ul mdi mdi-format-list-bulleted",
+                            title: "Generic List",
+
+                        },
+                        "numlist": {
+                            cmd: "numlist",
+                            ico: "fas fa-list-ol mdi mdi-format-list-numbered",
+                            title: "Numbered List"
+                        },
+
                         'bold': {
                             title: 'Bold',
-                            className: 'far fa-bold',
+                            ico: 'fas fa-bold mdi mdi-format-bold',
                             cmd: 'bold',
                             hotkey: 'Ctrl-B'
                         },
 
                         'italic': {
                             title: 'Italic',
-                            className: "far fa-italic",
+                            ico: "fas fa-italic mdi mdi-format-italic",
                             cmd: 'italic',
                             hotkey: 'Ctrl-I'
                         },
 
                         "strikethrough": {
                             cmd: "strikethrough",
-                            className: "far fa-strikethrough",
+                            ico: "fas fa-strikethrough mdi mdi-format-strikethrough",
                             title: "Strikethrough"
                         },
 
                         'heading': {
                             title: 'Heading',
-                            className: "far fa-heading",
+                            ico: "fas fa-heading mdi mdi-format-header-3",
                             cmd: 'heading',
                             hotkey: 'Ctrl-H'
                         },
 
                         'code': {
                             title: 'Code',
-                            className: "far fa-code",
+                            ico: "fas fa-code mdi mdi-code-tags",
                             cmd: 'code',
                             hotkey: 'Ctrl-X'
                         },
                         'quote': {
                             title: 'Quote',
-                            className: "far fa-quote-left",
+                            ico: "fas fa-quote-left mdi mdi-format-quote-open",
                             cmd: 'quote',
                             hotkey: 'Ctrl-Q'
                         },
                         'link': {
                             title: 'Link',
-                            className: "far fa-link",
+                            ico: "fas fa-link mdi mdi-link",
                             cmd: 'link',
                             hotkey: 'Ctrl-K'
                         },
                         'image': {
                             title: 'Image',
-                            className: "far fa-image",
+                            ico: "fas fa-image mdi mdi-image",
                             cmd: 'image',
                             hotkey: 'Ctrl-P'
                         },
                         "fullscreen": {
                             cmd: "fullscreen",
-                            className: "far fa-arrows-alt no-disable no-mobile",
+                            ico: "fas fa-expand mdi mdi-fullscreen",
                             title: "Toggle Fullscreen",
                             hotkey: 'F11',
                             ready: true
                         },
                         "preview": {
                             cmd: "preview",
-                            className: "far fa-eye no-disable",
+                            ico: "fas fa-eye mdi mdi-eye",
                             title: "Toggle Preview",
                             hotkey: 'Ctrl-P',
                             ready: true
-                        },
-
-                        "clipboard": {
-                            cmd: "clipboard",
-                            className: "far fa-clipboard",
-                            title: "Copy & Markdown Format",
-                            hotkey: 'Ctrl-V'
-                        },
-
-                        "clean": {
-                            cmd: "clean",
-                            className: "far fa-remove-format",
-                            title: "Html to markdown"
-                        },
-
-                        "undo": {
-                            cmd: "undo",
-                            className: "far fa-undo",
-                            title: "Undo",
-                            hotkey: 'Ctrl-Z'
-                        },
-
-                        "redo": {
-                            cmd: "redo",
-                            className: "far fa-repeat",
-                            title: "Redo",
-                            hotkey: 'Ctrl-Y'
-                        },
+                        }
 
-                        "bullist": {
-                            cmd: "bullist",
-                            className: "far fa-list-ul",
-                            title: "Generic List",
 
-                        },
-                        "numlist": {
-                            cmd: "numlist",
-                            className: "far fa-list-ol",
-                            title: "Numbered List"
-                        }
                     }
 
                 }
             },
-            name: {
+
+
+            theme: {
                 type: String,
-                default: 'html'
+                default: 'outline-secondary'
             },
+
             value: {
                 type: String,
                 default: '',
                 required: false
             },
 
-            buttonClass: {
-                type: String,
-                default: 'btn btn-outline-secondary'
-            },
-
-
-
             options: {
                 type: Object,
                 default: function () {
                     return {
-                        mode: 'gfm',
-                        theme: "elegent",
-                        lineNumbers: false,
-                        styleActiveLine: false,
-                        styleSelectedText: true,
-                        lineWrapping: true,
-                        indentWithTabs: true,
-                        autoRefresh: true,
-                        tabSize: 2,
-                        indentUnit: 2,
+
                     }
                 }
             },
@@ -207,25 +194,16 @@
 
         data() {
             return {
-                id: 'v-md-editor-' + new Date().getTime(),
+
                 editor: null,
                 preview: false,
+                fullScreen: false,
                 html: '',
-                toolbars: [],
-                shortcuts: {},
+                toolbars: [],                
 
             }
         },
 
-        watch: {
-            value(val) {
-                if (val != this.editor.getValue()) {
-                    this.editor.setValue(val);
-                }
-
-            },
-        },
-
         computed: {
             styles() {
                 return {
@@ -236,6 +214,14 @@
 
         },
 
+        watch: {
+            value(val) {
+                if (val != this.editor.getValue()) {
+                    this.editor.setValue(val);
+                }
+            }
+        },
+
         methods: {
             isEmpty: function (s) {
                 return s === null || s === undefined ? true : /^[\s\xa0]*$/.test(s);
@@ -251,12 +237,7 @@
                 return a; // Make chainable
 
             },
-            uid(name) {
-                return this.format('%s-%s', this.id, name);
-            },
-            obj(name) {
-                return jQuery('#' + this.uid(name));
-            },
+
 
             _toggleBlock(type, start, end) {
 
@@ -319,7 +300,7 @@
                     endPoint.ch = startPoint.ch + text.length;
                 }
 
-                ed.setSelection(startPoint, endPoint);
+                // ed.setSelection(startPoint, endPoint);
             },
 
             _toggleLine(name) {
@@ -417,22 +398,17 @@
                     text = ed.getLine(startPoint.line);
                     start = text.slice(0, startPoint.ch);
                     end = text.slice(startPoint.ch);
-                    ed.replaceRange(start + end, {
-                        line: startPoint.line,
-                        ch: 0
-                    });
+                    ed.replaceRange(start + end, { line: startPoint.line, ch: 0 });
                 } else {
-                    // text = ed.getSelection();
-                    // ed.replaceSelection(start + text + end);
-                    ed.replaceSelection(start + end);
 
+                    ed.replaceSelection(start + end);
                     startPoint.ch += start.length;
                     if (startPoint !== endPoint) {
                         endPoint.ch += start.length;
                     }
                 }
-                ed.setSelection(startPoint, endPoint);
-                ed.focus();
+                //ed.setSelection(startPoint, endPoint);
+
 
             },
 
@@ -450,7 +426,6 @@
 
                 var ed = this.editor;
                 var text = ed.getSelection();
-                var stat = this.state();
 
                 this.$root.$emit('markdown-editor:' + key, this);
 
@@ -484,12 +459,8 @@
                         ed.replaceSelection('\n### ' + text);
                         break;
 
-                    case 'clipboard':
-                        this.obj('modal-clipboard').modal('show');
-                        break;
 
                     case 'image':
-                        // this.obj('modal-image').modal('show');
 
                         var url = prompt("Please enter image url", "https://");
                         if (this.isUrl(url)) {
@@ -499,7 +470,6 @@
                         break;
 
                     case 'link':
-                        //this.obj('modal-link').modal('show');
 
                         var url = prompt("Please enter link", "https://");
                         if (this.isUrl(url)) {
@@ -514,10 +484,6 @@
                         this._toggleLine('quote');
                         break;
 
-                    case 'quote':
-                        this._toggleLine('quote');
-                        break;
-
                     case 'numlist':
                         this._toggleLine('numlist');
                         break;
@@ -526,112 +492,74 @@
                         this._toggleLine('bullist');
                         break;
 
-                    case 'preview':
 
-                        ///var md = new MarkdownIt({ typographer: true, breaks: true, quotes: '“”‘’' });
+                    case 'preview':
 
                         this.html = Marked(ed.getValue(), { breaks: true });
-                        this.preview ^= true;
-
-                        this.obj('toolbar').find('.btn:not(".ready")').prop('disabled', this.preview);
+                        this.preview = !this.preview;
 
                         break;
 
                     case 'fullscreen':
-
-                        this.obj('container').toggleClass('v-md-fullscreen');
-                        this.obj('fullscreen').toggleClass('active');
+                        this.fullScreen = !this.fullScreen;
                         ed.setOption("fullScreen", !ed.getOption("fullScreen"));
-
                         break;
 
                     case 'clean':
-                        text = Markdown.parse(text);
-                        ed.replaceSelection(text);
-
+                        ed.replaceSelection(Markdown.parse(text));
                         break;
 
                 }
 
-                ed.focus();
-
             },
 
-
-
-
-
             build() {
 
-                if (!jQuery) {
-
-                    console.error("Must required jQuery!");
-                    return;
-                }
-
-                if (this.isEmpty(this.toolbar)) {
-                    console.error("You must set toolbar!");
-                    return;
-                }
-
                 if (this.__rendered) return;
 
-                var _t = this;
+                var buttons = Object.assign({}, this.buttons, this.extend);                
 
-                this.buttons = Object.assign(this.buttons, this.extend);
+                var shortcuts = {};
 
-                var btns = _t.toolbar.toLowerCase().split(/(\s)/).filter(function (w) {
-                    return !_t.isEmpty(w);
-                });
+                this.toolbar.split('|').forEach((t, i) => {
+                    var group = [];
+                    t.toLowerCase().split(/(\s)/).forEach((b) => {
 
+                        if (!this.isEmpty(b)) {
 
-                var group = [];
-                for (var i = 0; i < btns.length; i++) {
-                    var btn = btns[i];
-                    var obj = _t.buttons[btn];
-                    if (obj) {
-                        // obj.cmd = typeof obj.cmd ==='function'? obj.cmd: this.command(obj.cmd);
-                        obj.id = btn;
-                        group.push(obj);
+                            var btn = buttons[b];
+                            if (!this.isEmpty(btn.hotkey)) {
+                                shortcuts[btn.hotkey] = () => this.command(btn.cmd);
+                            }
+                            group.push(btn);
+                        }
+                    });
 
-                    }
-                    if (btn === '|' || i == btns.length - 1) {
+                    if (group.length > 0)
                         this.toolbars.push(group);
-                        group = [];
-                    }
-                }
 
-
-                var o = Object.assign({}, { extraKeys: _t.shortcuts, initialValue: _t.value }, _t.options);
-                var el = document.getElementById(_t.id + '-input');
-                _t.editor = CodeMirror.fromTextArea(el, o);
-                _t.editor.on("change", function (ed) {
-                    //_t.editor.save();                    
-                    _t.$emit('input', ed.getValue());
-                    //_t.value = ed.getValue();
                 });
 
-                _t.editor.on("cursorActivity", function () {
-                    var stat = _t.state();
-
-                    _t.obj('toolbar').find('.btn.active:not(.ready)').removeClass('active');
-                    Object.keys(stat).forEach(key => {
-                        _t.obj(key).addClass('active');
+                
+                var o = Object.assign({ mode: 'markdown', extraKeys: shortcuts }, this.options);
 
-                    });
+                var ed = this.editor = CodeMirror.fromTextArea(document.getElementById(this.id), o);
+                ed.setValue(this.value);
+                ed.on("change", (ed) => {
+                    this.$emit('input', ed.getValue());
                 });
 
-                _t.__rendered = true;
-
+                this.__rendered = true;
 
             }
         },
         mounted() {
-
-            this.$nextTick(() => { this.build(); });
-
+            this.build();
         },
+
+      
         destroyed() {
+
             this.editor = null;
         }
 
diff --git a/src/index.css b/src/index.css
index 65e6c39..60c032d 100644
--- a/src/index.css
+++ b/src/index.css
@@ -1,18 +1,21 @@
 .v-md-container {
-    background: #f5f5f5;
     border: solid 1px #ddd;
+    background: #fff;
 }
 
 .v-md-container>.v-md-toolbar {
     padding: 8px 5px;
     border-bottom: solid 1px #ddd;
+    background: #f5f5f5;
     /* height: 52px; */
 }
 
 .v-md-wrapper {
     position: relative;
+    /* padding: 5px; */
 }
 
+
 .v-md-preview {
     position: absolute;
     top: 0;
@@ -27,10 +30,6 @@
     height: auto !important;
 }
 
-.v-md-container .clipboard-text {
-    height: 250px;
-}
-
 .v-md-fullscreen {
     width: 100%;
     height: 100% !important;
@@ -43,10 +42,13 @@
     z-index: 99999;
 }
 
-.v-md-container .CodeMirror {
-    font-family: Arial, Helvetica, sans-serif;
+
+.v-md-fullscreen .v-md-preview {
+    position: fixed !important;
+    top: 52px;
 }
 
+
 .v-md-auto-resize .CodeMirror {
     height: auto !important;
 }
@@ -57,33 +59,101 @@
     overflow: visible;
     position: relative;
     outline: none;
-    min-height: 300px;
-    /* the minimum height */
+    min-height: 250px;    
 }
 
-.v-md-fullscreen .v-md-preview {
-    position: fixed !important;
-    top: 52px;
+/* 
+.v-md-container .cm-scroller{
+    
+    height: 280px;
+    font-family: unset;
+} */
+
+/* .v-md-auto-resize .cm-scroller {
+    overflow: auto;
+    height: auto;
+    overflow: visible;
+    position: relative;
+    outline: none;
+    min-width: auto;   
+    
 }
 
-.CodeMirror-fullscreen {
-    position: fixed !important;
-    top: 52px;
-    left: 0;
-    right: 0;
-    bottom: 0;
-    height: auto !important;
-    z-index: 9;
+
+.v-md-wrapper .cm-wrap.cm-focused{
+    outline: 0;
+}
+.v-md-wrapper .cm-content{
+    white-space: unset;
+    font-family: unset;
+}
+
+.cm-keyword {
+    color: #708;
+}
+
+.cm-atom {
+    color: #219;
+}
+
+.cm-number {
+    color: #164;
+}
+
+.cm-def {
+    color: #00f;
+}
+
+.cm-variable, .cm-punctuation, .cm-property, .cm-operator {}
+
+.cm-variable-2 {
+    color: #05a;
+}
+
+.cm-variable-3, .cm-type {
+    color: #085;
+}
+
+.cm-comment {
+    color: #a50;
+}
+
+.cm-string {
+    color: #a11;
+}
+
+.cm-string-2 {
+    color: #f50;
+}
+
+.cm-meta {
+    color: #555;
+}
+
+.cm-qualifier {
+    color: #555;
+}
+
+.cm-builtin {
+    color: #30a;
+}
+
+.cm-bracket {
+    color: #997;
+}
+
+.cm-tag {
+    color: #170;
 }
 
-.v-md-container .modal {
-    z-index: 1080 !important;
+.cm-attribute {
+    color: #00c;
 }
 
-.v-md-container .modal .btn {
-    min-width: 90px;
+.cm-hr {
+    color: #999;
 }
 
-.float-left {
-    float: left !important;
-}
\ No newline at end of file
+.cm-link {
+    color: #00c;
+} */
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
index 9420b8e..870701c 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,6 +1,9 @@
 
+import 'codemirror/lib/codemirror.css';
+import './index.css';
 import Editor from './editor.vue';
 
+
 var MarkdownEditor = {
     install: function (Vue) {
         if (Vue.__md_editor_installed) {
@@ -17,13 +20,4 @@ if (typeof window !== 'undefined' && window.Vue) {
     Vue.use(MarkdownEditor);
 }
 
-export default MarkdownEditor;
-
-
-// if (typeof exports == "object") {
-//     module.exports = MarkdownEditor;
-// } else if (typeof define == "function" && define.amd) {
-//     define([], function () { return MarkdownEditor; })
-// } else if (window.Vue) {
-//     Vue.use(MarkdownEditor);
-// }
\ No newline at end of file
+export default MarkdownEditor;
\ No newline at end of file
diff --git a/webpack.development.js b/webpack.development.js
index 0814c5e..884e208 100644
--- a/webpack.development.js
+++ b/webpack.development.js
@@ -306,23 +306,23 @@ module.exports = function (env) {
                 new HtmlWebpackExternalsPlugin({
                     // hash: true,
                     externals: [
-                        {
-                            module: 'jquery',
-                            entry: 'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js',
-                            global: 'jQuery'
-                        },
-                        {
-                            module: 'Popper',
-                            entry: 'https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.1/umd/popper.min.js'
-                        },
-                        {
-                            module: 'boostrap',
-                            entry: 'https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/js/bootstrap.min.js'
-                        },
+                        // {
+                        //     module: 'jquery',
+                        //     entry: 'https://cdn.jsdelivr.net/npm/jquery@3.4.1/dist/jquery.slim.min.js',
+                        //     global: 'jQuery'
+                        // },
+                        // {
+                        //     module: 'Popper',
+                        //     entry: 'https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.1/umd/popper.min.js'
+                        // },
+                        // {
+                        //     module: 'boostrap',
+                        //     entry: 'https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/js/bootstrap.min.js'
+                        // },
                         {
                             module: 'vue',
                             global: 'Vue',
-                            entry: 'https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js'
+                            entry: 'https://cdn.jsdelivr.net/npm/vue@2.6.11/dist/vue.min.js'
                         },
                         // {
                         //     module: 'vue-router',
@@ -376,7 +376,8 @@ module.exports = function (env) {
 
                             module: 'bootstrap',
                             entry: [
-                                'https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css',
+                                // 'https://cdn.jsdelivr.net/npm/bootstrap@4.4.1/dist/css/bootstrap.min.css',
+                                'https://cdn.jsdelivr.net/npm/morioh@1.0.8/dist/css/morioh.min.css',
                                 // '//l.allcdn.org/remark/v4.1/skins/green.min.css'
                             ],
 
@@ -386,7 +387,8 @@ module.exports = function (env) {
                         {
                             module: 'fonts',
                             entry: [
-                                '//l.allcdn.org/fa/v5.12.2/css/all.min.css'
+                                'https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@5.12.1/css/all.min.css',
+                                // 'https://cdn.jsdelivr.net/npm/@mdi/font@5.0.45/css/materialdesignicons.min.css'
                             ],
                         },
 
diff --git a/www/app.vue b/www/app.vue
index fba5495..817683e 100644
--- a/www/app.vue
+++ b/www/app.vue
@@ -5,12 +5,7 @@
             <header>
                 <h1>v-markdown-editor</h1>
                 <h4>Markdown Editor component for Vue.js</h4>
-            </header>
-
-            <div class="form-group">
-                <h2 class="text-center"><a href="https://morioh.com">Social Network for Developers</a></h2>
-            </div>
-
+            </header>         
 
             <div class="form-group">
                 <markdown-editor ref="md" v-model="value"></markdown-editor>
@@ -22,24 +17,28 @@
             </div>
 
             <div class="form-group">
-                <pre>{{value}}</pre>
-            </div>           
+                <pre><code>{{value}}</code></pre>
+            </div>
 
 
+            <pre><code>&lt;markdown-editor toolbar=&quot;bold italic upload&quot; :extend=&quot;custom&quot;&gt;&lt;/markdown-editor&gt;</code></pre>
 
             <div class="form-group">
-                <markdown-editor height="auto"></markdown-editor>
+                <markdown-editor toolbar="bold italic upload" :extend="custom"></markdown-editor>
             </div>
 
-            <div class="form-group">
-                <markdown-editor height="auto"
-                    toolbar="bold italic heading | image link | numlist bullist code quote | preview fullscreen upload"
-                    buttonClass="btn btn-default" :extend="custom"></markdown-editor>
+
+
+            <pre><code>&#x3C;markdown-editor theme=&#x22;success&#x22;&#x3E;&#x3C;/markdown-editor&#x3E;</code></pre>            
+
+            <div class="form-group">                
+                <markdown-editor theme="success"></markdown-editor>
             </div>
 
 
-            <div class="form-group">
-                <markdown-editor buttonClass="btn btn-sm btn-success"></markdown-editor>
+            <pre><code>&#x3C;markdown-editor height="auto" toolbar=&#x27;&#x27;&#x3E;&#x3C;/markdown-editor&#x3E;</code></pre>    
+            <div class="form-group">                
+                <markdown-editor height="auto" toolbar=''></markdown-editor>
             </div>
 
 
@@ -55,12 +54,9 @@
 
             </p>
 
-            <p>Developed under the <a href="https://opensource.org/licenses/MIT" target="_blank">MIT License</a><br>
-                Made Love by Nasa8x<br>
-                <strong>Donate</strong><br>
-                <a href="http://vrl.to/ec5cfbae" target="_blank">
-                    <img src="https://i.imgur.com/z0p6RvA.png"></a><a href="http://vrl.to/ec5cfbae" target="_blank"><img
-                        src="https://i.imgur.com/bEUNBGz.png"></a>
+            <p>Themed by <a href="http://on.morioh.net/96d5d36367" target="_blank">Morioh Theme</a><br>
+                Made Love by <a href="https://morioh.com/@5c22e47440738156a7078a19">Nasa8x</a>
+
             </p>
 
 
@@ -75,12 +71,12 @@
     export default {
         data() {
             return {
-                value: 'Hello world',
+                value: 'Hello',
 
                 custom: {
                     'upload': {
                         cmd: 'upload',
-                        className: 'fas fa-upload',
+                        ico: 'fas fa-cloud',
                         title: 'Upload File'
                     }
                 }
@@ -90,15 +86,7 @@
         methods: {
             val() {
                 this.value = "jjkjlkjljlkjlkjlkjlkj"
-            },
-
-
-
-            showModal() {
-
-                $('#modal').modal('show');
-
-            },
+            },           
 
             replace() {
                 this.$refs.md.editor.replaceSelection("Handle editor");