remove xregexp package (#91369)

Co-authored-by: Kibana Machine <[email protected]>

package.json

@@ -327,7 +327,6 @@
     "wellknown": "^0.5.0",
     "whatwg-fetch": "^3.0.0",
     "xml2js": "^0.4.22",
-    "xregexp": "4.2.4",
     "yauzl": "^2.10.0"
   },
   "devDependencies": {

x-pack/plugins/reporting/server/export_types/printable_pdf/lib/pdf/get_font.test.ts

@@ -0,0 +1,34 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { getFont } from './get_font';
+
+describe('getFont', () => {
+  it(`returns 'noto-cjk' when matching cjk characters`, () => {
+    const cjkStrings = [
+      'vi-Hani: 关',
+      'ko: 全',
+      'ja: 入',
+      'zh-Hant-HK: 免',
+      'zh-Hant: 令',
+      'zh-Hans: 令',
+      'random: おあいい 漢字 あい 抵 令',
+      String.fromCharCode(0x4ee4),
+      String.fromCodePoint(0x9aa8),
+    ];
+
+    for (const cjkString of cjkStrings) {
+      expect(getFont(cjkString)).toBe('noto-cjk');
+    }
+  });
+
+  it(`returns 'Roboto' for non Han characters`, () => {
+    expect(getFont('English text')).toBe('Roboto');
+    expect(getFont('')).toBe('Roboto');
+    expect(getFont(undefined!)).toBe('Roboto');
+  });
+});

x-pack/plugins/reporting/server/export_types/printable_pdf/lib/pdf/get_font.ts

@@ -5,16 +5,11 @@
  * 2.0.
  */
 
-// @ts-ignore: no module definition
-import xRegExp from 'xregexp';
-
 export function getFont(text: string) {
-  // Once unicode regex scripts are fully supported we should be able to get rid of the dependency
-  // on xRegExp library.  See https://github.com/tc39/proposal-regexp-unicode-property-escapes
-  // for more information. We are matching Han characters which is one of the supported unicode scripts
+  // We are matching Han characters which is one of the supported unicode scripts
   // (you can see the full list of supported scripts here: http://www.unicode.org/standard/supported.html).
   // This will match Chinese, Japanese, Korean and some other Asian languages.
-  const isCKJ = xRegExp('\\p{Han}').test(text, 'g');
+  const isCKJ = /\p{Script=Han}/gu.test(text);
   if (isCKJ) {
     return 'noto-cjk';
   } else {

yarn.lock

@@ -1882,14 +1882,6 @@
     pirates "^4.0.0"
     source-map-support "^0.5.16"
 
-"@babel/runtime-corejs2@^7.2.0":
-  version "7.11.2"
-  resolved "https://registry.yarnpkg.com/@babel/runtime-corejs2/-/runtime-corejs2-7.11.2.tgz#700a03945ebad0d31ba6690fc8a6bcc9040faa47"
-  integrity sha512-AC/ciV28adSSpEkBglONBWq4/Lvm6GAZuxIoyVtsnUpZMl0bxLtoChEnYAkP+47KyOCayZanojtflUEUJtR/6Q==
-  dependencies:
-    core-js "^2.6.5"
-    regenerator-runtime "^0.13.4"
-
 "@babel/runtime-corejs3@^7.10.2":
   version "7.11.2"
   resolved "https://registry.yarnpkg.com/@babel/runtime-corejs3/-/runtime-corejs3-7.11.2.tgz#02c3029743150188edeb66541195f54600278419"
@@ -11120,7 +11112,7 @@ core-js@^1.0.0:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
   integrity sha1-ZSKUwUZR2yj6k70tX/KYOk8IxjY=
 
-core-js@^2.4.0, core-js@^2.5.0, core-js@^2.5.3, core-js@^2.6.5, core-js@^2.6.9:
+core-js@^2.4.0, core-js@^2.5.0, core-js@^2.5.3, core-js@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.9.tgz#6b4b214620c834152e179323727fc19741b084f2"
   integrity sha512-HOpZf6eXmnl7la+cUdMnLvUxKNqLUzJvgIziQ0DiF3JwSImNphIqdGqzj6hIKyX04MmV0poclQ7+wjWvxQyR2A==
@@ -30800,13 +30792,6 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/xpath/-/xpath-0.0.27.tgz#dd3421fbdcc5646ac32c48531b4d7e9d0c2cfa92"
   integrity sha512-fg03WRxtkCV6ohClePNAECYsmpKKTv5L8y/X3Dn1hQrec3POx2jHZ/0P2qQ6HvsrU1BmeqXcof3NGGueG6LxwQ==
 
-[email protected]:
-  version "4.2.4"
-  resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.2.4.tgz#02a4aea056d65a42632c02f0233eab8e4d7e57ed"
-  integrity sha512-sO0bYdYeJAJBcJA8g7MJJX7UrOZIfJPd8U2SC7B2Dd/J24U0aQNoGp33shCaBSWeb0rD5rh6VBUIXOkGal1TZA==
-  dependencies:
-    "@babel/runtime-corejs2" "^7.2.0"
-
 "xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.0, xtend@^4.0.1, xtend@^4.0.2, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"