vendor/assets/javascripts/prism.js in prism-rails-1.6.0.2 vs vendor/assets/javascripts/prism.js in prism-rails-1.6.0.3

- old
+ new

@@ -1,795 +1,135 @@ +//! prism +//! version : 1.6.0.2 +//! authors : Avi Charlop, Prismjs.com contributors +//! license : MIT -/* ********************************************** - Begin prism-core.js -********************************************** */ +//= require ./prism/prism-core +//= require ./prism/prism-clike +//= require ./prism/prism-javascript +//= require ./prism/prism-markup +//= require ./prism/prism-c +//= require ./prism/prism-ruby +//= require ./prism/prism-css +//= require ./prism/prism-java -var _self = (typeof window !== 'undefined') - ? window // if in browser - : ( - (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope) - ? self // if in worker - : {} // if in node js - ); -/** - * Prism: Lightweight, robust, elegant syntax highlighting - * MIT license http://www.opensource.org/licenses/mit-license.php/ - * @author Lea Verou http://lea.verou.me - */ +//= require ./prism/prism-abap.js +//= require ./prism/prism-actionscript.js +//= require ./prism/prism-ada.js +//= require ./prism/prism-apacheconf.js +//= require ./prism/prism-apl.js +//= require ./prism/prism-applescript.js +//= require ./prism/prism-asciidoc.js +//= require ./prism/prism-aspnet.js +//= require ./prism/prism-autohotkey.js +//= require ./prism/prism-autoit.js +//= require ./prism/prism-bash.js +//= require ./prism/prism-basic.js +//= require ./prism/prism-batch.js +//= require ./prism/prism-bison.js +//= require ./prism/prism-brainfuck.js +//= require ./prism/prism-bro.js +//= require ./prism/prism-coffeescript.js +//= require ./prism/prism-core.js +//= require ./prism/prism-cpp.js +//= require ./prism/prism-crystal.js +//= require ./prism/prism-csharp.js +//= require ./prism/prism-css-extras.js +//= require ./prism/prism-d.js +//= require ./prism/prism-dart.js +//= require ./prism/prism-diff.js +//= require ./prism/prism-docker.js +//= require ./prism/prism-eiffel.js +//= require ./prism/prism-elixir.js +//= require ./prism/prism-erlang.js +//= require ./prism/prism-fortran.js +//= require ./prism/prism-fsharp.js +//= require ./prism/prism-gherkin.js +//= require ./prism/prism-git.js +//= require ./prism/prism-glsl.js +//= require ./prism/prism-go.js +//= require ./prism/prism-graphql.js +//= require ./prism/prism-groovy.js +//= require ./prism/prism-haml.js +//= require ./prism/prism-handlebars.js +//= require ./prism/prism-haskell.js +//= require ./prism/prism-haxe.js +//= require ./prism/prism-http.js +//= require ./prism/prism-icon.js +//= require ./prism/prism-inform7.js +//= require ./prism/prism-ini.js +//= require ./prism/prism-j.js +//= require ./prism/prism-jade.js +//= require ./prism/prism-jolie.js +//= require ./prism/prism-json.js +//= require ./prism/prism-jsx.js +//= require ./prism/prism-julia.js +//= require ./prism/prism-keyman.js +//= require ./prism/prism-kotlin.js +//= require ./prism/prism-latex.js +//= require ./prism/prism-less.js +//= require ./prism/prism-livescript.js +//= require ./prism/prism-lolcode.js +//= require ./prism/prism-lua.js +//= require ./prism/prism-makefile.js +//= require ./prism/prism-markdown.js +//= require ./prism/prism-matlab.js +//= require ./prism/prism-mel.js +//= require ./prism/prism-mizar.js +//= require ./prism/prism-monkey.js +//= require ./prism/prism-nasm.js +//= require ./prism/prism-nginx.js +//= require ./prism/prism-nim.js +//= require ./prism/prism-nix.js +//= require ./prism/prism-nsis.js +//= require ./prism/prism-objectivec.js +//= require ./prism/prism-ocaml.js +//= require ./prism/prism-oz.js +//= require ./prism/prism-parigp.js +//= require ./prism/prism-parser.js +//= require ./prism/prism-pascal.js +//= require ./prism/prism-perl.js +//= require ./prism/prism-php-extras.js +//= require ./prism/prism-php.js +//= require ./prism/prism-powershell.js +//= require ./prism/prism-processing.js +//= require ./prism/prism-prolog.js +//= require ./prism/prism-properties.js +//= require ./prism/prism-protobuf.js +//= require ./prism/prism-puppet.js +//= require ./prism/prism-pure.js +//= require ./prism/prism-python.js +//= require ./prism/prism-q.js +//= require ./prism/prism-qore.js +//= require ./prism/prism-r.js +//= require ./prism/prism-reason.js +//= require ./prism/prism-rest.js +//= require ./prism/prism-rip.js +//= require ./prism/prism-roboconf.js +//= require ./prism/prism-rust.js +//= require ./prism/prism-sas.js +//= require ./prism/prism-sass.js +//= require ./prism/prism-scala.js +//= require ./prism/prism-scheme.js +//= require ./prism/prism-scss.js +//= require ./prism/prism-smalltalk.js +//= require ./prism/prism-smarty.js +//= require ./prism/prism-sql.js +//= require ./prism/prism-stylus.js +//= require ./prism/prism-swift.js +//= require ./prism/prism-tcl.js +//= require ./prism/prism-textile.js +//= require ./prism/prism-twig.js +//= require ./prism/prism-typescript.js +//= require ./prism/prism-verilog.js +//= require ./prism/prism-vhdl.js +//= require ./prism/prism-vim.js +//= require ./prism/prism-wiki.js +//= require ./prism/prism-xojo.js +//= require ./prism/prism-yaml.js -var Prism = (function(){ - -// Private helper vars -var lang = /\blang(?:uage)?-(\w+)\b/i; -var uniqueId = 0; - -var _ = _self.Prism = { - util: { - encode: function (tokens) { - if (tokens instanceof Token) { - return new Token(tokens.type, _.util.encode(tokens.content), tokens.alias); - } else if (_.util.type(tokens) === 'Array') { - return tokens.map(_.util.encode); - } else { - return tokens.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/\u00a0/g, ' '); - } - }, - - type: function (o) { - return Object.prototype.toString.call(o).match(/\[object (\w+)\]/)[1]; - }, - - objId: function (obj) { - if (!obj['__id']) { - Object.defineProperty(obj, '__id', { value: ++uniqueId }); - } - return obj['__id']; - }, - - // Deep clone a language definition (e.g. to extend it) - clone: function (o) { - var type = _.util.type(o); - - switch (type) { - case 'Object': - var clone = {}; - - for (var key in o) { - if (o.hasOwnProperty(key)) { - clone[key] = _.util.clone(o[key]); - } - } - - return clone; - - case 'Array': - // Check for existence for IE8 - return o.map && o.map(function(v) { return _.util.clone(v); }); - } - - return o; - } - }, - - languages: { - extend: function (id, redef) { - var lang = _.util.clone(_.languages[id]); - - for (var key in redef) { - lang[key] = redef[key]; - } - - return lang; - }, - - /** - * Insert a token before another token in a language literal - * As this needs to recreate the object (we cannot actually insert before keys in object literals), - * we cannot just provide an object, we need anobject and a key. - * @param inside The key (or language id) of the parent - * @param before The key to insert before. If not provided, the function appends instead. - * @param insert Object with the key/value pairs to insert - * @param root The object that contains `inside`. If equal to Prism.languages, it can be omitted. - */ - insertBefore: function (inside, before, insert, root) { - root = root || _.languages; - var grammar = root[inside]; - - if (arguments.length == 2) { - insert = arguments[1]; - - for (var newToken in insert) { - if (insert.hasOwnProperty(newToken)) { - grammar[newToken] = insert[newToken]; - } - } - - return grammar; - } - - var ret = {}; - - for (var token in grammar) { - - if (grammar.hasOwnProperty(token)) { - - if (token == before) { - - for (var newToken in insert) { - - if (insert.hasOwnProperty(newToken)) { - ret[newToken] = insert[newToken]; - } - } - } - - ret[token] = grammar[token]; - } - } - - // Update references in other language definitions - _.languages.DFS(_.languages, function(key, value) { - if (value === root[inside] && key != inside) { - this[key] = ret; - } - }); - - return root[inside] = ret; - }, - - // Traverse a language definition with Depth First Search - DFS: function(o, callback, type, visited) { - visited = visited || {}; - for (var i in o) { - if (o.hasOwnProperty(i)) { - callback.call(o, i, o[i], type || i); - - if (_.util.type(o[i]) === 'Object' && !visited[_.util.objId(o[i])]) { - visited[_.util.objId(o[i])] = true; - _.languages.DFS(o[i], callback, null, visited); - } - else if (_.util.type(o[i]) === 'Array' && !visited[_.util.objId(o[i])]) { - visited[_.util.objId(o[i])] = true; - _.languages.DFS(o[i], callback, i, visited); - } - } - } - } - }, - plugins: {}, - - highlightAll: function(async, callback) { - var env = { - callback: callback, - selector: 'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code' - }; - - _.hooks.run("before-highlightall", env); - - var elements = env.elements || document.querySelectorAll(env.selector); - - for (var i=0, element; element = elements[i++];) { - _.highlightElement(element, async === true, env.callback); - } - }, - - highlightElement: function(element, async, callback) { - // Find language - var language, grammar, parent = element; - - while (parent && !lang.test(parent.className)) { - parent = parent.parentNode; - } - - if (parent) { - language = (parent.className.match(lang) || [,''])[1].toLowerCase(); - grammar = _.languages[language]; - } - - // Set language on the element, if not present - element.className = element.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language; - - // Set language on the parent, for styling - parent = element.parentNode; - - if (/pre/i.test(parent.nodeName)) { - parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language; - } - - var code = element.textContent; - - var env = { - element: element, - language: language, - grammar: grammar, - code: code - }; - - _.hooks.run('before-sanity-check', env); - - if (!env.code || !env.grammar) { - if (env.code) { - env.element.textContent = env.code; - } - _.hooks.run('complete', env); - return; - } - - _.hooks.run('before-highlight', env); - - if (async && _self.Worker) { - var worker = new Worker(_.filename); - - worker.onmessage = function(evt) { - env.highlightedCode = evt.data; - - _.hooks.run('before-insert', env); - - env.element.innerHTML = env.highlightedCode; - - callback && callback.call(env.element); - _.hooks.run('after-highlight', env); - _.hooks.run('complete', env); - }; - - worker.postMessage(JSON.stringify({ - language: env.language, - code: env.code, - immediateClose: true - })); - } - else { - env.highlightedCode = _.highlight(env.code, env.grammar, env.language); - - _.hooks.run('before-insert', env); - - env.element.innerHTML = env.highlightedCode; - - callback && callback.call(element); - - _.hooks.run('after-highlight', env); - _.hooks.run('complete', env); - } - }, - - highlight: function (text, grammar, language) { - var tokens = _.tokenize(text, grammar); - return Token.stringify(_.util.encode(tokens), language); - }, - - tokenize: function(text, grammar, language) { - var Token = _.Token; - - var strarr = [text]; - - var rest = grammar.rest; - - if (rest) { - for (var token in rest) { - grammar[token] = rest[token]; - } - - delete grammar.rest; - } - - tokenloop: for (var token in grammar) { - if(!grammar.hasOwnProperty(token) || !grammar[token]) { - continue; - } - - var patterns = grammar[token]; - patterns = (_.util.type(patterns) === "Array") ? patterns : [patterns]; - - for (var j = 0; j < patterns.length; ++j) { - var pattern = patterns[j], - inside = pattern.inside, - lookbehind = !!pattern.lookbehind, - greedy = !!pattern.greedy, - lookbehindLength = 0, - alias = pattern.alias; - - if (greedy && !pattern.pattern.global) { - // Without the global flag, lastIndex won't work - var flags = pattern.pattern.toString().match(/[imuy]*$/)[0]; - pattern.pattern = RegExp(pattern.pattern.source, flags + "g"); - } - - pattern = pattern.pattern || pattern; - - // Don’t cache length as it changes during the loop - for (var i=0, pos = 0; i<strarr.length; pos += strarr[i].length, ++i) { - - var str = strarr[i]; - - if (strarr.length > text.length) { - // Something went terribly wrong, ABORT, ABORT! - break tokenloop; - } - - if (str instanceof Token) { - continue; - } - - pattern.lastIndex = 0; - - var match = pattern.exec(str), - delNum = 1; - - // Greedy patterns can override/remove up to two previously matched tokens - if (!match && greedy && i != strarr.length - 1) { - pattern.lastIndex = pos; - match = pattern.exec(text); - if (!match) { - break; - } - - var from = match.index + (lookbehind ? match[1].length : 0), - to = match.index + match[0].length, - k = i, - p = pos; - - for (var len = strarr.length; k < len && p < to; ++k) { - p += strarr[k].length; - // Move the index i to the element in strarr that is closest to from - if (from >= p) { - ++i; - pos = p; - } - } - - /* - * If strarr[i] is a Token, then the match starts inside another Token, which is invalid - * If strarr[k - 1] is greedy we are in conflict with another greedy pattern - */ - if (strarr[i] instanceof Token || strarr[k - 1].greedy) { - continue; - } - - // Number of tokens to delete and replace with the new match - delNum = k - i; - str = text.slice(pos, p); - match.index -= pos; - } - - if (!match) { - continue; - } - - if(lookbehind) { - lookbehindLength = match[1].length; - } - - var from = match.index + lookbehindLength, - match = match[0].slice(lookbehindLength), - to = from + match.length, - before = str.slice(0, from), - after = str.slice(to); - - var args = [i, delNum]; - - if (before) { - args.push(before); - } - - var wrapped = new Token(token, inside? _.tokenize(match, inside) : match, alias, match, greedy); - - args.push(wrapped); - - if (after) { - args.push(after); - } - - Array.prototype.splice.apply(strarr, args); - } - } - } - - return strarr; - }, - - hooks: { - all: {}, - - add: function (name, callback) { - var hooks = _.hooks.all; - - hooks[name] = hooks[name] || []; - - hooks[name].push(callback); - }, - - run: function (name, env) { - var callbacks = _.hooks.all[name]; - - if (!callbacks || !callbacks.length) { - return; - } - - for (var i=0, callback; callback = callbacks[i++];) { - callback(env); - } - } - } -}; - -var Token = _.Token = function(type, content, alias, matchedStr, greedy) { - this.type = type; - this.content = content; - this.alias = alias; - // Copy of the full string this token was created from - this.length = (matchedStr || "").length|0; - this.greedy = !!greedy; -}; - -Token.stringify = function(o, language, parent) { - if (typeof o == 'string') { - return o; - } - - if (_.util.type(o) === 'Array') { - return o.map(function(element) { - return Token.stringify(element, language, o); - }).join(''); - } - - var env = { - type: o.type, - content: Token.stringify(o.content, language, parent), - tag: 'span', - classes: ['token', o.type], - attributes: {}, - language: language, - parent: parent - }; - - if (env.type == 'comment') { - env.attributes['spellcheck'] = 'true'; - } - - if (o.alias) { - var aliases = _.util.type(o.alias) === 'Array' ? o.alias : [o.alias]; - Array.prototype.push.apply(env.classes, aliases); - } - - _.hooks.run('wrap', env); - - var attributes = Object.keys(env.attributes).map(function(name) { - return name + '="' + (env.attributes[name] || '').replace(/"/g, '&quot;') + '"'; - }).join(' '); - - return '<' + env.tag + ' class="' + env.classes.join(' ') + '"' + (attributes ? ' ' + attributes : '') + '>' + env.content + '</' + env.tag + '>'; - -}; - -if (!_self.document) { - if (!_self.addEventListener) { - // in Node.js - return _self.Prism; - } - // In worker - _self.addEventListener('message', function(evt) { - var message = JSON.parse(evt.data), - lang = message.language, - code = message.code, - immediateClose = message.immediateClose; - - _self.postMessage(_.highlight(code, _.languages[lang], lang)); - if (immediateClose) { - _self.close(); - } - }, false); - - return _self.Prism; +if(typeof Turbolinks != 'undefined' && Turbolinks.supported) { + document.addEventListener('turbolinks:load', function() { + Prism.highlightAll() + }); } - -//Get current script and highlight -var script = document.currentScript || [].slice.call(document.getElementsByTagName("script")).pop(); - -if (script) { - _.filename = script.src; - - if (document.addEventListener && !script.hasAttribute('data-manual')) { - if(document.readyState !== "loading") { - if (window.requestAnimationFrame) { - window.requestAnimationFrame(_.highlightAll); - } else { - window.setTimeout(_.highlightAll, 16); - } - } - else { - document.addEventListener('DOMContentLoaded', _.highlightAll); - } - } -} - -return _self.Prism; - -})(); - -if (typeof module !== 'undefined' && module.exports) { - module.exports = Prism; -} - -// hack for components to work correctly in node.js -if (typeof global !== 'undefined') { - global.Prism = Prism; -} - - -/* ********************************************** - Begin prism-markup.js -********************************************** */ - -Prism.languages.markup = { - 'comment': /<!--[\w\W]*?-->/, - 'prolog': /<\?[\w\W]+?\?>/, - 'doctype': /<!DOCTYPE[\w\W]+?>/i, - 'cdata': /<!\[CDATA\[[\w\W]*?]]>/i, - 'tag': { - pattern: /<\/?(?!\d)[^\s>\/=$<]+(?:\s+[^\s>\/=]+(?:=(?:("|')(?:\\\1|\\?(?!\1)[\w\W])*\1|[^\s'">=]+))?)*\s*\/?>/i, - inside: { - 'tag': { - pattern: /^<\/?[^\s>\/]+/i, - inside: { - 'punctuation': /^<\/?/, - 'namespace': /^[^\s>\/:]+:/ - } - }, - 'attr-value': { - pattern: /=(?:('|")[\w\W]*?(\1)|[^\s>]+)/i, - inside: { - 'punctuation': /[=>"']/ - } - }, - 'punctuation': /\/?>/, - 'attr-name': { - pattern: /[^\s>\/]+/, - inside: { - 'namespace': /^[^\s>\/:]+:/ - } - } - - } - }, - 'entity': /&#?[\da-z]{1,8};/i -}; - -// Plugin to make entity title show the real entity, idea by Roman Komarov -Prism.hooks.add('wrap', function(env) { - - if (env.type === 'entity') { - env.attributes['title'] = env.content.replace(/&amp;/, '&'); - } -}); - -Prism.languages.xml = Prism.languages.markup; -Prism.languages.html = Prism.languages.markup; -Prism.languages.mathml = Prism.languages.markup; -Prism.languages.svg = Prism.languages.markup; - - -/* ********************************************** - Begin prism-css.js -********************************************** */ - -Prism.languages.css = { - 'comment': /\/\*[\w\W]*?\*\//, - 'atrule': { - pattern: /@[\w-]+?.*?(;|(?=\s*\{))/i, - inside: { - 'rule': /@[\w-]+/ - // See rest below - } - }, - 'url': /url\((?:(["'])(\\(?:\r\n|[\w\W])|(?!\1)[^\\\r\n])*\1|.*?)\)/i, - 'selector': /[^\{\}\s][^\{\};]*?(?=\s*\{)/, - 'string': { - pattern: /("|')(\\(?:\r\n|[\w\W])|(?!\1)[^\\\r\n])*\1/, - greedy: true - }, - 'property': /(\b|\B)[\w-]+(?=\s*:)/i, - 'important': /\B!important\b/i, - 'function': /[-a-z0-9]+(?=\()/i, - 'punctuation': /[(){};:]/ -}; - -Prism.languages.css['atrule'].inside.rest = Prism.util.clone(Prism.languages.css); - -if (Prism.languages.markup) { - Prism.languages.insertBefore('markup', 'tag', { - 'style': { - pattern: /(<style[\w\W]*?>)[\w\W]*?(?=<\/style>)/i, - lookbehind: true, - inside: Prism.languages.css, - alias: 'language-css' - } - }); - - Prism.languages.insertBefore('inside', 'attr-value', { - 'style-attr': { - pattern: /\s*style=("|').*?\1/i, - inside: { - 'attr-name': { - pattern: /^\s*style/i, - inside: Prism.languages.markup.tag.inside - }, - 'punctuation': /^\s*=\s*['"]|['"]\s*$/, - 'attr-value': { - pattern: /.+/i, - inside: Prism.languages.css - } - }, - alias: 'language-css' - } - }, Prism.languages.markup.tag); -} - -/* ********************************************** - Begin prism-clike.js -********************************************** */ - -Prism.languages.clike = { - 'comment': [ - { - pattern: /(^|[^\\])\/\*[\w\W]*?\*\//, - lookbehind: true - }, - { - pattern: /(^|[^\\:])\/\/.*/, - lookbehind: true - } - ], - 'string': { - pattern: /(["'])(\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/, - greedy: true - }, - 'class-name': { - pattern: /((?:\b(?:class|interface|extends|implements|trait|instanceof|new)\s+)|(?:catch\s+\())[a-z0-9_\.\\]+/i, - lookbehind: true, - inside: { - punctuation: /(\.|\\)/ - } - }, - 'keyword': /\b(if|else|while|do|for|return|in|instanceof|function|new|try|throw|catch|finally|null|break|continue)\b/, - 'boolean': /\b(true|false)\b/, - 'function': /[a-z0-9_]+(?=\()/i, - 'number': /\b-?(?:0x[\da-f]+|\d*\.?\d+(?:e[+-]?\d+)?)\b/i, - 'operator': /--?|\+\+?|!=?=?|<=?|>=?|==?=?|&&?|\|\|?|\?|\*|\/|~|\^|%/, - 'punctuation': /[{}[\];(),.:]/ -}; - - -/* ********************************************** - Begin prism-javascript.js -********************************************** */ - -Prism.languages.javascript = Prism.languages.extend('clike', { - 'keyword': /\b(as|async|await|break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally|for|from|function|get|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|set|static|super|switch|this|throw|try|typeof|var|void|while|with|yield)\b/, - 'number': /\b-?(0x[\dA-Fa-f]+|0b[01]+|0o[0-7]+|\d*\.?\d+([Ee][+-]?\d+)?|NaN|Infinity)\b/, - // Allow for all non-ASCII characters (See http://stackoverflow.com/a/2008444) - 'function': /[_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*(?=\()/i, - 'operator': /--?|\+\+?|!=?=?|<=?|>=?|==?=?|&&?|\|\|?|\?|\*\*?|\/|~|\^|%|\.{3}/ -}); - -Prism.languages.insertBefore('javascript', 'keyword', { - 'regex': { - pattern: /(^|[^/])\/(?!\/)(\[.+?]|\\.|[^/\\\r\n])+\/[gimyu]{0,5}(?=\s*($|[\r\n,.;})]))/, - lookbehind: true, - greedy: true - } -}); - -Prism.languages.insertBefore('javascript', 'string', { - 'template-string': { - pattern: /`(?:\\\\|\\?[^\\])*?`/, - greedy: true, - inside: { - 'interpolation': { - pattern: /\$\{[^}]+\}/, - inside: { - 'interpolation-punctuation': { - pattern: /^\$\{|\}$/, - alias: 'punctuation' - }, - rest: Prism.languages.javascript - } - }, - 'string': /[\s\S]+/ - } - } -}); - -if (Prism.languages.markup) { - Prism.languages.insertBefore('markup', 'tag', { - 'script': { - pattern: /(<script[\w\W]*?>)[\w\W]*?(?=<\/script>)/i, - lookbehind: true, - inside: Prism.languages.javascript, - alias: 'language-javascript' - } - }); -} - -Prism.languages.js = Prism.languages.javascript; - -/* ********************************************** - Begin prism-file-highlight.js -********************************************** */ - -(function () { - if (typeof self === 'undefined' || !self.Prism || !self.document || !document.querySelector) { - return; - } - - self.Prism.fileHighlight = function() { - - var Extensions = { - 'js': 'javascript', - 'py': 'python', - 'rb': 'ruby', - 'ps1': 'powershell', - 'psm1': 'powershell', - 'sh': 'bash', - 'bat': 'batch', - 'h': 'c', - 'tex': 'latex' - }; - - if(Array.prototype.forEach) { // Check to prevent error in IE8 - Array.prototype.slice.call(document.querySelectorAll('pre[data-src]')).forEach(function (pre) { - var src = pre.getAttribute('data-src'); - - var language, parent = pre; - var lang = /\blang(?:uage)?-(?!\*)(\w+)\b/i; - while (parent && !lang.test(parent.className)) { - parent = parent.parentNode; - } - - if (parent) { - language = (pre.className.match(lang) || [, ''])[1]; - } - - if (!language) { - var extension = (src.match(/\.(\w+)$/) || [, ''])[1]; - language = Extensions[extension] || extension; - } - - var code = document.createElement('code'); - code.className = 'language-' + language; - - pre.textContent = ''; - - code.textContent = 'Loading…'; - - pre.appendChild(code); - - var xhr = new XMLHttpRequest(); - - xhr.open('GET', src, true); - - xhr.onreadystatechange = function () { - if (xhr.readyState == 4) { - - if (xhr.status < 400 && xhr.responseText) { - code.textContent = xhr.responseText; - - Prism.highlightElement(code); - } - else if (xhr.status >= 400) { - code.textContent = '✖ Error ' + xhr.status + ' while fetching file: ' + xhr.statusText; - } - else { - code.textContent = '✖ Error: File does not exist or is empty'; - } - } - }; - - xhr.send(null); - }); - } - - }; - - document.addEventListener('DOMContentLoaded', self.Prism.fileHighlight); - -})();