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resolves asciidoctor#21 load highlight.js from a CDN
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| /* DO NOT MANUALLY EDIT THIS FILE */ | ||
| /* this file was copied-pasted from https://github.com/hakimel/reveal.js/blob/3.7.0/plugin/highlight/highlight.js */ | ||
| /* please note that the bundled highlight.js code was removed so we can use a more recent version */ | ||
| (function() { | ||
| // Function to perform a better "data-trim" on code snippets | ||
| // Will slice an indentation amount on each line of the snippet (amount based on the line having the lowest indentation length) | ||
| function betterTrim(snippetEl) { | ||
| // Helper functions | ||
| function trimLeft(val) { | ||
| // Adapted from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim#Polyfill | ||
| return val.replace(/^[\s\uFEFF\xA0]+/g, ''); | ||
| } | ||
| function trimLineBreaks(input) { | ||
| var lines = input.split('\n'); | ||
|
|
||
| // Trim line-breaks from the beginning | ||
| for (var i = 0; i < lines.length; i++) { | ||
| if (lines[i].trim() === '') { | ||
| lines.splice(i--, 1); | ||
| } else break; | ||
| } | ||
|
|
||
| // Trim line-breaks from the end | ||
| for (var i = lines.length-1; i >= 0; i--) { | ||
| if (lines[i].trim() === '') { | ||
| lines.splice(i, 1); | ||
| } else break; | ||
| } | ||
|
|
||
| return lines.join('\n'); | ||
| } | ||
|
|
||
| // Main function for betterTrim() | ||
| return (function(snippetEl) { | ||
| var content = trimLineBreaks(snippetEl.innerHTML); | ||
| var lines = content.split('\n'); | ||
| // Calculate the minimum amount to remove on each line start of the snippet (can be 0) | ||
| var pad = lines.reduce(function(acc, line) { | ||
| if (line.length > 0 && trimLeft(line).length > 0 && acc > line.length - trimLeft(line).length) { | ||
| return line.length - trimLeft(line).length; | ||
| } | ||
| return acc; | ||
| }, Number.POSITIVE_INFINITY); | ||
| // Slice each line with this amount | ||
| return lines.map(function(line, index) { | ||
| return line.slice(pad); | ||
| }) | ||
| .join('\n'); | ||
| })(snippetEl); | ||
| } | ||
|
|
||
| if( typeof window.addEventListener === 'function' ) { | ||
| var hljs_nodes = document.querySelectorAll( 'pre code' ); | ||
|
|
||
| for( var i = 0, len = hljs_nodes.length; i < len; i++ ) { | ||
| var element = hljs_nodes[i]; | ||
|
|
||
| // trim whitespace if data-trim attribute is present | ||
| if( element.hasAttribute( 'data-trim' ) && typeof element.innerHTML.trim === 'function' ) { | ||
| element.innerHTML = betterTrim(element); | ||
| } | ||
|
|
||
| // Now escape html unless prevented by author | ||
| if( ! element.hasAttribute( 'data-noescape' )) { | ||
| element.innerHTML = element.innerHTML.replace(/</g,"<").replace(/>/g,">"); | ||
| } | ||
|
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||
| // re-highlight when focus is lost (for edited code) | ||
| element.addEventListener( 'focusout', function( event ) { | ||
| hljs.highlightBlock( event.currentTarget ); | ||
| }, false ); | ||
| } | ||
| } | ||
| })(); | ||
|
|
||
| hljs.initHighlightingOnLoad(); |
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