/* **********************************************     Begin prism-core.js********************************************** *//// <reference lib="WebWorker"/>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 * * @license MIT <https://opensource.org/licenses/MIT> * @author Lea Verou <https://lea.verou.me> * @namespace * @public */var Prism = (function (_self) {	// Private helper vars	var lang = /\blang(?:uage)?-([\w-]+)\b/i;	var uniqueId = 0;	// The grammar object for plaintext	var plainTextGrammar = {};	var _ = {		/**		 * By default, Prism will attempt to highlight all code elements (by calling {@link Prism.highlightAll}) on the		 * current page after the page finished loading. This might be a problem if e.g. you wanted to asynchronously load		 * additional languages or plugins yourself.		 *		 * By setting this value to `true`, Prism will not automatically highlight all code elements on the page.		 *		 * You obviously have to change this value before the automatic highlighting started. To do this, you can add an		 * empty Prism object into the global scope before loading the Prism script like this:		 *		 * ```js		 * window.Prism = window.Prism || {};		 * Prism.manual = true;		 * // add a new <script> to load Prism's script		 * ```		 *		 * @default false		 * @type {boolean}		 * @memberof Prism		 * @public		 */		manual: _self.Prism && _self.Prism.manual,		disableWorkerMessageHandler: _self.Prism && _self.Prism.disableWorkerMessageHandler,		/**		 * A namespace for utility methods.		 *		 * All function in this namespace that are not explicitly marked as _public_ are for __internal use only__ and may		 * change or disappear at any time.		 *		 * @namespace		 * @memberof Prism		 */		util: {			encode: function encode(tokens) {				if (tokens instanceof Token) {					return new Token(tokens.type, encode(tokens.content), tokens.alias);				} else if (Array.isArray(tokens)) {					return tokens.map(encode);				} else {					return tokens.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/\u00a0/g, ' ');				}			},			/**			 * Returns the name of the type of the given value.			 *			 * @param {any} o			 * @returns {string}			 * @example			 * type(null)      === 'Null'			 * type(undefined) === 'Undefined'			 * type(123)       === 'Number'			 * type('foo')     === 'String'			 * type(true)      === 'Boolean'			 * type([1, 2])    === 'Array'			 * type({})        === 'Object'			 * type(String)    === 'Function'			 * type(/abc+/)    === 'RegExp'			 */			type: function (o) {				return Object.prototype.toString.call(o).slice(8, -1);			},			/**			 * Returns a unique number for the given object. Later calls will still return the same number.			 *			 * @param {Object} obj			 * @returns {number}			 */			objId: function (obj) {				if (!obj['__id']) {					Object.defineProperty(obj, '__id', { value: ++uniqueId });				}				return obj['__id'];			},			/**			 * Creates a deep clone of the given object.			 *			 * The main intended use of this function is to clone language definitions.			 *			 * @param {T} o			 * @param {Record<number, any>} [visited]			 * @returns {T}			 * @template T			 */			clone: function deepClone(o, visited) {				visited = visited || {};				var clone; var id;				switch (_.util.type(o)) {					case 'Object':						id = _.util.objId(o);						if (visited[id]) {							return visited[id];						}						clone = /** @type {Record<string, any>} */ ({});						visited[id] = clone;						for (var key in o) {							if (o.hasOwnProperty(key)) {								clone[key] = deepClone(o[key], visited);							}						}						return /** @type {any} */ (clone);					case 'Array':						id = _.util.objId(o);						if (visited[id]) {							return visited[id];						}						clone = [];						visited[id] = clone;						(/** @type {Array} */(/** @type {any} */(o))).forEach(function (v, i) {							clone[i] = deepClone(v, visited);						});						return /** @type {any} */ (clone);					default:						return o;				}			},			/**			 * Returns the Prism language of the given element set by a `language-xxxx` or `lang-xxxx` class.			 *			 * If no language is set for the element or the element is `null` or `undefined`, `none` will be returned.			 *			 * @param {Element} element			 * @returns {string}			 */			getLanguage: function (element) {				while (element && !lang.test(element.className)) {					element = element.parentElement;				}				if (element) {					return (element.className.match(lang) || [, 'none'])[1].toLowerCase();				}				return 'none';			},			/**			 * Returns the script element that is currently executing.			 *			 * This does __not__ work for line script element.			 *			 * @returns {HTMLScriptElement | null}			 */			currentScript: function () {				if (typeof document === 'undefined') {					return null;				}				if ('currentScript' in document && 1 < 2 /* hack to trip TS' flow analysis */) {					return /** @type {any} */ (document.currentScript);				}				// IE11 workaround				// we'll get the src of the current script by parsing IE11's error stack trace				// this will not work for inline scripts				try {					throw new Error();				} catch (err) {					// Get file src url from stack. Specifically works with the format of stack traces in IE.					// A stack will look like this:					//					// Error					//    at _.util.currentScript (http://localhost/components/prism-core.js:119:5)					//    at Global code (http://localhost/components/prism-core.js:606:1)					var src = (/at [^(\r\n]*\((.*):[^:]+:[^:]+\)$/i.exec(err.stack) || [])[1];					if (src) {						var scripts = document.getElementsByTagName('script');						for (var i in scripts) {							if (scripts[i].src == src) {								return scripts[i];							}						}					}					return null;				}			},			/**			 * Returns whether a given class is active for `element`.			 *			 * The class can be activated if `element` or one of its ancestors has the given class and it can be deactivated			 * if `element` or one of its ancestors has the negated version of the given class. The _negated version_ of the			 * given class is just the given class with a `no-` prefix.			 *			 * Whether the class is active is determined by the closest ancestor of `element` (where `element` itself is			 * closest ancestor) that has the given class or the negated version of it. If neither `element` nor any of its			 * ancestors have the given class or the negated version of it, then the default activation will be returned.			 *			 * In the paradoxical situation where the closest ancestor contains __both__ the given class and the negated			 * version of it, the class is considered active.			 *			 * @param {Element} element			 * @param {string} className			 * @param {boolean} [defaultActivation=false]			 * @returns {boolean}			 */			isActive: function (element, className, defaultActivation) {				var no = 'no-' + className;				while (element) {					var classList = element.classList;					if (classList.contains(className)) {						return true;					}					if (classList.contains(no)) {						return false;					}					element = element.parentElement;				}				return !!defaultActivation;			}		},		/**		 * This namespace contains all currently loaded languages and the some helper functions to create and modify languages.		 *		 * @namespace		 * @memberof Prism		 * @public		 */		languages: {			/**			 * The grammar for plain, unformatted text.			 */			plain: plainTextGrammar,			plaintext: plainTextGrammar,			text: plainTextGrammar,			txt: plainTextGrammar,			/**			 * Creates a deep copy of the language with the given id and appends the given tokens.			 *			 * If a token in `redef` also appears in the copied language, then the existing token in the copied language			 * will be overwritten at its original position.			 *			 * ## Best practices			 *			 * Since the position of overwriting tokens (token in `redef` that overwrite tokens in the copied language)			 * doesn't matter, they can technically be in any order. However, this can be confusing to others that trying to			 * understand the language definition because, normally, the order of tokens matters in Prism grammars.			 *			 * Therefore, it is encouraged to order overwriting tokens according to the positions of the overwritten tokens.			 * Furthermore, all non-overwriting tokens should be placed after the overwriting ones.			 *			 * @param {string} id The id of the language to extend. This has to be a key in `Prism.languages`.			 * @param {Grammar} redef The new tokens to append.			 * @returns {Grammar} The new language created.			 * @public			 * @example			 * Prism.languages['css-with-colors'] = Prism.languages.extend('css', {			 *     // Prism.languages.css already has a 'comment' token, so this token will overwrite CSS' 'comment' token			 *     // at its original position			 *     'comment': { ... },			 *     // CSS doesn't have a 'color' token, so this token will be appended			 *     'color': /\b(?:red|green|blue)\b/			 * });			 */			extend: function (id, redef) {				var lang = _.util.clone(_.languages[id]);				for (var key in redef) {					lang[key] = redef[key];				}				return lang;			},			/**			 * Inserts tokens _before_ another token in a language definition or any other grammar.			 *			 * ## Usage			 *			 * This helper method makes it easy to modify existing languages. For example, the CSS language definition			 * not only defines CSS highlighting for CSS documents, but also needs to define highlighting for CSS embedded			 * in HTML through `<style>` elements. To do this, it needs to modify `Prism.languages.markup` and add the			 * appropriate tokens. However, `Prism.languages.markup` is a regular JavaScript object literal, so if you do			 * this:			 *			 * ```js			 * Prism.languages.markup.style = {			 *     // token			 * };			 * ```			 *			 * then the `style` token will be added (and processed) at the end. `insertBefore` allows you to insert tokens			 * before existing tokens. For the CSS example above, you would use it like this:			 *			 * ```js			 * Prism.languages.insertBefore('markup', 'cdata', {			 *     'style': {			 *         // token			 *     }			 * });			 * ```			 *			 * ## Special cases			 *			 * If the grammars of `inside` and `insert` have tokens with the same name, the tokens in `inside`'s grammar			 * will be ignored.			 *			 * This behavior can be used to insert tokens after `before`:			 *			 * ```js			 * Prism.languages.insertBefore('markup', 'comment', {			 *     'comment': Prism.languages.markup.comment,			 *     // tokens after 'comment'			 * });			 * ```			 *			 * ## Limitations			 *			 * The main problem `insertBefore` has to solve is iteration order. Since ES2015, the iteration order for object			 * properties is guaranteed to be the insertion order (except for integer keys) but some browsers behave			 * differently when keys are deleted and re-inserted. So `insertBefore` can't be implemented by temporarily			 * deleting properties which is necessary to insert at arbitrary positions.			 *			 * To solve this problem, `insertBefore` doesn't actually insert the given tokens into the target object.			 * Instead, it will create a new object and replace all references to the target object with the new one. This			 * can be done without temporarily deleting properties, so the iteration order is well-defined.			 *			 * However, only references that can be reached from `Prism.languages` or `insert` will be replaced. I.e. if			 * you hold the target object in a variable, then the value of the variable will not change.			 *			 * ```js			 * var oldMarkup = Prism.languages.markup;			 * var newMarkup = Prism.languages.insertBefore('markup', 'comment', { ... });			 *			 * assert(oldMarkup !== Prism.languages.markup);			 * assert(newMarkup === Prism.languages.markup);			 * ```			 *			 * @param {string} inside The property of `root` (e.g. a language id in `Prism.languages`) that contains the			 * object to be modified.			 * @param {string} before The key to insert before.			 * @param {Grammar} insert An object containing the key-value pairs to be inserted.			 * @param {Object<string, any>} [root] The object containing `inside`, i.e. the object that contains the			 * object to be modified.			 *			 * Defaults to `Prism.languages`.			 * @returns {Grammar} The new grammar object.			 * @public			 */			insertBefore: function (inside, before, insert, root) {				root = root || /** @type {any} */ (_.languages);				var grammar = root[inside];				/** @type {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];								}							}						}						// Do not insert token which also occur in insert. See #1525						if (!insert.hasOwnProperty(token)) {							ret[token] = grammar[token];						}					}				}				var old = root[inside];				root[inside] = ret;				// Update references in other language definitions				_.languages.DFS(_.languages, function (key, value) {					if (value === old && key != inside) {						this[key] = ret;					}				});				return ret;			},			// Traverse a language definition with Depth First Search			DFS: function DFS(o, callback, type, visited) {				visited = visited || {};				var objId = _.util.objId;				for (var i in o) {					if (o.hasOwnProperty(i)) {						callback.call(o, i, o[i], type || i);						var property = o[i];						var propertyType = _.util.type(property);						if (propertyType === 'Object' && !visited[objId(property)]) {							visited[objId(property)] = true;							DFS(property, callback, null, visited);						} else if (propertyType === 'Array' && !visited[objId(property)]) {							visited[objId(property)] = true;							DFS(property, callback, i, visited);						}					}				}			}		},		plugins: {},		/**		 * This is the most high-level function in Prism’s API.		 * It fetches all the elements that have a `.language-xxxx` class and then calls {@link Prism.highlightElement} on		 * each one of them.		 *		 * This is equivalent to `Prism.highlightAllUnder(document, async, callback)`.		 *		 * @param {boolean} [async=false] Same as in {@link Prism.highlightAllUnder}.		 * @param {HighlightCallback} [callback] Same as in {@link Prism.highlightAllUnder}.		 * @memberof Prism		 * @public		 */		highlightAll: function (async, callback) {			_.highlightAllUnder(document, async, callback);		},		/**		 * Fetches all the descendants of `container` that have a `.language-xxxx` class and then calls		 * {@link Prism.highlightElement} on each one of them.		 *		 * The following hooks will be run:		 * 1. `before-highlightall`		 * 2. `before-all-elements-highlight`		 * 3. All hooks of {@link Prism.highlightElement} for each element.		 *		 * @param {ParentNode} container The root element, whose descendants that have a `.language-xxxx` class will be highlighted.		 * @param {boolean} [async=false] Whether each element is to be highlighted asynchronously using Web Workers.		 * @param {HighlightCallback} [callback] An optional callback to be invoked on each element after its highlighting is done.		 * @memberof Prism		 * @public		 */		highlightAllUnder: function (container, async, callback) {			var env = {				callback: callback,				container: container,				selector: 'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'			};			_.hooks.run('before-highlightall', env);			env.elements = Array.prototype.slice.apply(env.container.querySelectorAll(env.selector));			_.hooks.run('before-all-elements-highlight', env);			for (var i = 0, element; (element = env.elements[i++]);) {				_.highlightElement(element, async === true, env.callback);			}		},		/**		 * Highlights the code inside a single element.		 *		 * The following hooks will be run:		 * 1. `before-sanity-check`		 * 2. `before-highlight`		 * 3. All hooks of {@link Prism.highlight}. These hooks will be run by an asynchronous worker if `async` is `true`.		 * 4. `before-insert`		 * 5. `after-highlight`		 * 6. `complete`		 *		 * Some the above hooks will be skipped if the element doesn't contain any text or there is no grammar loaded for		 * the element's language.		 *		 * @param {Element} element The element containing the code.		 * It must have a class of `language-xxxx` to be processed, where `xxxx` is a valid language identifier.		 * @param {boolean} [async=false] Whether the element is to be highlighted asynchronously using Web Workers		 * to improve performance and avoid blocking the UI when highlighting very large chunks of code. This option is		 * [disabled by default](https://prismjs.com/faq.html#why-is-asynchronous-highlighting-disabled-by-default).		 *		 * Note: All language definitions required to highlight the code must be included in the main `prism.js` file for		 * asynchronous highlighting to work. You can build your own bundle on the		 * [Download page](https://prismjs.com/download.html).		 * @param {HighlightCallback} [callback] An optional callback to be invoked after the highlighting is done.		 * Mostly useful when `async` is `true`, since in that case, the highlighting is done asynchronously.		 * @memberof Prism		 * @public		 */		highlightElement: function (element, async, callback) {			// Find language			var language = _.util.getLanguage(element);			var 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			var parent = element.parentElement;			if (parent && parent.nodeName.toLowerCase() === 'pre') {				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			};			function insertHighlightedCode(highlightedCode) {				env.highlightedCode = highlightedCode;				_.hooks.run('before-insert', env);				env.element.innerHTML = env.highlightedCode;				_.hooks.run('after-highlight', env);				_.hooks.run('complete', env);				callback && callback.call(env.element);			}			_.hooks.run('before-sanity-check', env);			// plugins may change/add the parent/element			parent = env.element.parentElement;			if (parent && parent.nodeName.toLowerCase() === 'pre' && !parent.hasAttribute('tabindex')) {				parent.setAttribute('tabindex', '0');			}			if (!env.code) {				_.hooks.run('complete', env);				callback && callback.call(env.element);				return;			}			_.hooks.run('before-highlight', env);			if (!env.grammar) {				insertHighlightedCode(_.util.encode(env.code));				return;			}			if (async && _self.Worker) {				var worker = new Worker(_.filename);				worker.onmessage = function (evt) {					insertHighlightedCode(evt.data);				};				worker.postMessage(JSON.stringify({					language: env.language,					code: env.code,					immediateClose: true				}));			} else {				insertHighlightedCode(_.highlight(env.code, env.grammar, env.language));			}		},		/**		 * Low-level function, only use if you know what you’re doing. It accepts a string of text as input		 * and the language definitions to use, and returns a string with the HTML produced.		 *		 * The following hooks will be run:		 * 1. `before-tokenize`		 * 2. `after-tokenize`		 * 3. `wrap`: On each {@link Token}.		 *		 * @param {string} text A string with the code to be highlighted.		 * @param {Grammar} grammar An object containing the tokens to use.		 *		 * Usually a language definition like `Prism.languages.markup`.		 * @param {string} language The name of the language definition passed to `grammar`.		 * @returns {string} The highlighted HTML.		 * @memberof Prism		 * @public		 * @example		 * Prism.highlight('var foo = true;', Prism.languages.javascript, 'javascript');		 */		highlight: function (text, grammar, language) {			var env = {				code: text,				grammar: grammar,				language: language			};			_.hooks.run('before-tokenize', env);			env.tokens = _.tokenize(env.code, env.grammar);			_.hooks.run('after-tokenize', env);			return Token.stringify(_.util.encode(env.tokens), env.language);		},		/**		 * This is the heart of Prism, and the most low-level function you can use. It accepts a string of text as input		 * and the language definitions to use, and returns an array with the tokenized code.		 *		 * When the language definition includes nested tokens, the function is called recursively on each of these tokens.		 *		 * This method could be useful in other contexts as well, as a very crude parser.		 *		 * @param {string} text A string with the code to be highlighted.		 * @param {Grammar} grammar An object containing the tokens to use.		 *		 * Usually a language definition like `Prism.languages.markup`.		 * @returns {TokenStream} An array of strings and tokens, a token stream.		 * @memberof Prism		 * @public		 * @example		 * let code = `var foo = 0;`;		 * let tokens = Prism.tokenize(code, Prism.languages.javascript);		 * tokens.forEach(token => {		 *     if (token instanceof Prism.Token && token.type === 'number') {		 *         console.log(`Found numeric literal: ${token.content}`);		 *     }		 * });		 */		tokenize: function (text, grammar) {			var rest = grammar.rest;			if (rest) {				for (var token in rest) {					grammar[token] = rest[token];				}				delete grammar.rest;			}			var tokenList = new LinkedList();			addAfter(tokenList, tokenList.head, text);			matchGrammar(text, tokenList, grammar, tokenList.head, 0);			return toArray(tokenList);		},		/**		 * @namespace		 * @memberof Prism		 * @public		 */		hooks: {			all: {},			/**			 * Adds the given callback to the list of callbacks for the given hook.			 *			 * The callback will be invoked when the hook it is registered for is run.			 * Hooks are usually directly run by a highlight function but you can also run hooks yourself.			 *			 * One callback function can be registered to multiple hooks and the same hook multiple times.			 *			 * @param {string} name The name of the hook.			 * @param {HookCallback} callback The callback function which is given environment variables.			 * @public			 */			add: function (name, callback) {				var hooks = _.hooks.all;				hooks[name] = hooks[name] || [];				hooks[name].push(callback);			},			/**			 * Runs a hook invoking all registered callbacks with the given environment variables.			 *			 * Callbacks will be invoked synchronously and in the order in which they were registered.			 *			 * @param {string} name The name of the hook.			 * @param {Object<string, any>} env The environment variables of the hook passed to all callbacks registered.			 * @public			 */			run: function (name, env) {				var callbacks = _.hooks.all[name];				if (!callbacks || !callbacks.length) {					return;				}				for (var i = 0, callback; (callback = callbacks[i++]);) {					callback(env);				}			}		},		Token: Token	};	_self.Prism = _;	// Typescript note:	// The following can be used to import the Token type in JSDoc:	//	//   @typedef {InstanceType<import("./prism-core")["Token"]>} Token	/**	 * Creates a new token.	 *	 * @param {string} type See {@link Token#type type}	 * @param {string | TokenStream} content See {@link Token#content content}	 * @param {string|string[]} [alias] The alias(es) of the token.	 * @param {string} [matchedStr=""] A copy of the full string this token was created from.	 * @class	 * @global	 * @public	 */	function Token(type, content, alias, matchedStr) {		/**		 * The type of the token.		 *		 * This is usually the key of a pattern in a {@link Grammar}.		 *		 * @type {string}		 * @see GrammarToken		 * @public		 */		this.type = type;		/**		 * The strings or tokens contained by this token.		 *		 * This will be a token stream if the pattern matched also defined an `inside` grammar.		 *		 * @type {string | TokenStream}		 * @public		 */		this.content = content;		/**		 * The alias(es) of the token.		 *		 * @type {string|string[]}		 * @see GrammarToken		 * @public		 */		this.alias = alias;		// Copy of the full string this token was created from		this.length = (matchedStr || '').length | 0;	}	/**	 * A token stream is an array of strings and {@link Token Token} objects.	 *	 * Token streams have to fulfill a few properties that are assumed by most functions (mostly internal ones) that process	 * them.	 *	 * 1. No adjacent strings.	 * 2. No empty strings.	 *	 *    The only exception here is the token stream that only contains the empty string and nothing else.	 *	 * @typedef {Array<string | Token>} TokenStream	 * @global	 * @public	 */	/**	 * Converts the given token or token stream to an HTML representation.	 *	 * The following hooks will be run:	 * 1. `wrap`: On each {@link Token}.	 *	 * @param {string | Token | TokenStream} o The token or token stream to be converted.	 * @param {string} language The name of current language.	 * @returns {string} The HTML representation of the token or token stream.	 * @memberof Token	 * @static	 */	Token.stringify = function stringify(o, language) {		if (typeof o == 'string') {			return o;		}		if (Array.isArray(o)) {			var s = '';			o.forEach(function (e) {				s += stringify(e, language);			});			return s;		}		var env = {			type: o.type,			content: stringify(o.content, language),			tag: 'span',			classes: ['token', o.type],			attributes: {},			language: language		};		var aliases = o.alias;		if (aliases) {			if (Array.isArray(aliases)) {				Array.prototype.push.apply(env.classes, aliases);			} else {				env.classes.push(aliases);			}		}		_.hooks.run('wrap', env);		var attributes = '';		for (var name in env.attributes) {			attributes += ' ' + name + '="' + (env.attributes[name] || '').replace(/"/g, '&quot;') + '"';		}		return '<' + env.tag + ' class="' + env.classes.join(' ') + '"' + attributes + '>' + env.content + '</' + env.tag + '>';	};	/**	 * @param {RegExp} pattern	 * @param {number} pos	 * @param {string} text	 * @param {boolean} lookbehind	 * @returns {RegExpExecArray | null}	 */	function matchPattern(pattern, pos, text, lookbehind) {		pattern.lastIndex = pos;		var match = pattern.exec(text);		if (match && lookbehind && match[1]) {			// change the match to remove the text matched by the Prism lookbehind group			var lookbehindLength = match[1].length;			match.index += lookbehindLength;			match[0] = match[0].slice(lookbehindLength);		}		return match;	}	/**	 * @param {string} text	 * @param {LinkedList<string | Token>} tokenList	 * @param {any} grammar	 * @param {LinkedListNode<string | Token>} startNode	 * @param {number} startPos	 * @param {RematchOptions} [rematch]	 * @returns {void}	 * @private	 *	 * @typedef RematchOptions	 * @property {string} cause	 * @property {number} reach	 */	function matchGrammar(text, tokenList, grammar, startNode, startPos, rematch) {		for (var token in grammar) {			if (!grammar.hasOwnProperty(token) || !grammar[token]) {				continue;			}			var patterns = grammar[token];			patterns = Array.isArray(patterns) ? patterns : [patterns];			for (var j = 0; j < patterns.length; ++j) {				if (rematch && rematch.cause == token + ',' + j) {					return;				}				var patternObj = patterns[j];				var inside = patternObj.inside;				var lookbehind = !!patternObj.lookbehind;				var greedy = !!patternObj.greedy;				var alias = patternObj.alias;				if (greedy && !patternObj.pattern.global) {					// Without the global flag, lastIndex won't work					var flags = patternObj.pattern.toString().match(/[imsuy]*$/)[0];					patternObj.pattern = RegExp(patternObj.pattern.source, flags + 'g');				}				/** @type {RegExp} */				var pattern = patternObj.pattern || patternObj;				for ( // iterate the token list and keep track of the current token/string position					var currentNode = startNode.next, pos = startPos;					currentNode !== tokenList.tail;					pos += currentNode.value.length, currentNode = currentNode.next				) {					if (rematch && pos >= rematch.reach) {						break;					}					var str = currentNode.value;					if (tokenList.length > text.length) {						// Something went terribly wrong, ABORT, ABORT!						return;					}					if (str instanceof Token) {						continue;					}					var removeCount = 1; // this is the to parameter of removeBetween					var match;					if (greedy) {						match = matchPattern(pattern, pos, text, lookbehind);						if (!match) {							break;						}						var from = match.index;						var to = match.index + match[0].length;						var p = pos;						// find the node that contains the match						p += currentNode.value.length;						while (from >= p) {							currentNode = currentNode.next;							p += currentNode.value.length;						}						// adjust pos (and p)						p -= currentNode.value.length;						pos = p;						// the current node is a Token, then the match starts inside another Token, which is invalid						if (currentNode.value instanceof Token) {							continue;						}						// find the last node which is affected by this match						for (							var k = currentNode;							k !== tokenList.tail && (p < to || typeof k.value === 'string');							k = k.next						) {							removeCount++;							p += k.value.length;						}						removeCount--;						// replace with the new match						str = text.slice(pos, p);						match.index -= pos;					} else {						match = matchPattern(pattern, 0, str, lookbehind);						if (!match) {							continue;						}					}					// eslint-disable-next-line no-redeclare					var from = match.index;					var matchStr = match[0];					var before = str.slice(0, from);					var after = str.slice(from + matchStr.length);					var reach = pos + str.length;					if (rematch && reach > rematch.reach) {						rematch.reach = reach;					}					var removeFrom = currentNode.prev;					if (before) {						removeFrom = addAfter(tokenList, removeFrom, before);						pos += before.length;					}					removeRange(tokenList, removeFrom, removeCount);					var wrapped = new Token(token, inside ? _.tokenize(matchStr, inside) : matchStr, alias, matchStr);					currentNode = addAfter(tokenList, removeFrom, wrapped);					if (after) {						addAfter(tokenList, currentNode, after);					}					if (removeCount > 1) {						// at least one Token object was removed, so we have to do some rematching						// this can only happen if the current pattern is greedy						/** @type {RematchOptions} */						var nestedRematch = {							cause: token + ',' + j,							reach: reach						};						matchGrammar(text, tokenList, grammar, currentNode.prev, pos, nestedRematch);						// the reach might have been extended because of the rematching						if (rematch && nestedRematch.reach > rematch.reach) {							rematch.reach = nestedRematch.reach;						}					}				}			}		}	}	/**	 * @typedef LinkedListNode	 * @property {T} value	 * @property {LinkedListNode<T> | null} prev The previous node.	 * @property {LinkedListNode<T> | null} next The next node.	 * @template T	 * @private	 */	/**	 * @template T	 * @private	 */	function LinkedList() {		/** @type {LinkedListNode<T>} */		var head = { value: null, prev: null, next: null };		/** @type {LinkedListNode<T>} */		var tail = { value: null, prev: head, next: null };		head.next = tail;		/** @type {LinkedListNode<T>} */		this.head = head;		/** @type {LinkedListNode<T>} */		this.tail = tail;		this.length = 0;	}	/**	 * Adds a new node with the given value to the list.	 *	 * @param {LinkedList<T>} list	 * @param {LinkedListNode<T>} node	 * @param {T} value	 * @returns {LinkedListNode<T>} The added node.	 * @template T	 */	function addAfter(list, node, value) {		// assumes that node != list.tail && values.length >= 0		var next = node.next;		var newNode = { value: value, prev: node, next: next };		node.next = newNode;		next.prev = newNode;		list.length++;		return newNode;	}	/**	 * Removes `count` nodes after the given node. The given node will not be removed.	 *	 * @param {LinkedList<T>} list	 * @param {LinkedListNode<T>} node	 * @param {number} count	 * @template T	 */	function removeRange(list, node, count) {		var next = node.next;		for (var i = 0; i < count && next !== list.tail; i++) {			next = next.next;		}		node.next = next;		next.prev = node;		list.length -= i;	}	/**	 * @param {LinkedList<T>} list	 * @returns {T[]}	 * @template T	 */	function toArray(list) {		var array = [];		var node = list.head.next;		while (node !== list.tail) {			array.push(node.value);			node = node.next;		}		return array;	}	if (!_self.document) {		if (!_self.addEventListener) {			// in Node.js			return _;		}		if (!_.disableWorkerMessageHandler) {			// In worker			_self.addEventListener('message', function (evt) {				var message = JSON.parse(evt.data);				var lang = message.language;				var code = message.code;				var immediateClose = message.immediateClose;				_self.postMessage(_.highlight(code, _.languages[lang], lang));				if (immediateClose) {					_self.close();				}			}, false);		}		return _;	}	// Get current script and highlight	var script = _.util.currentScript();	if (script) {		_.filename = script.src;		if (script.hasAttribute('data-manual')) {			_.manual = true;		}	}	function highlightAutomaticallyCallback() {		if (!_.manual) {			_.highlightAll();		}	}	if (!_.manual) {		// If the document state is "loading", then we'll use DOMContentLoaded.		// If the document state is "interactive" and the prism.js script is deferred, then we'll also use the		// DOMContentLoaded event because there might be some plugins or languages which have also been deferred and they		// might take longer one animation frame to execute which can create a race condition where only some plugins have		// been loaded when Prism.highlightAll() is executed, depending on how fast resources are loaded.		// See https://github.com/PrismJS/prism/issues/2102		var readyState = document.readyState;		if (readyState === 'loading' || readyState === 'interactive' && script && script.defer) {			document.addEventListener('DOMContentLoaded', highlightAutomaticallyCallback);		} else {			if (window.requestAnimationFrame) {				window.requestAnimationFrame(highlightAutomaticallyCallback);			} else {				window.setTimeout(highlightAutomaticallyCallback, 16);			}		}	}	return _;}(_self));if (typeof module !== 'undefined' && module.exports) {	module.exports = Prism;}// hack for components to work correctly in node.jsif (typeof global !== 'undefined') {	global.Prism = Prism;}// some additional documentation/types/** * The expansion of a simple `RegExp` literal to support additional properties. * * @typedef GrammarToken * @property {RegExp} pattern The regular expression of the token. * @property {boolean} [lookbehind=false] If `true`, then the first capturing group of `pattern` will (effectively) * behave as a lookbehind group meaning that the captured text will not be part of the matched text of the new token. * @property {boolean} [greedy=false] Whether the token is greedy. * @property {string|string[]} [alias] An optional alias or list of aliases. * @property {Grammar} [inside] The nested grammar of this token. * * The `inside` grammar will be used to tokenize the text value of each token of this kind. * * This can be used to make nested and even recursive language definitions. * * Note: This can cause infinite recursion. Be careful when you embed different languages or even the same language into * each another. * @global * @public *//** * @typedef Grammar * @type {Object<string, RegExp | GrammarToken | Array<RegExp | GrammarToken>>} * @property {Grammar} [rest] An optional grammar object that will be appended to this grammar. * @global * @public *//** * A function which will invoked after an element was successfully highlighted. * * @callback HighlightCallback * @param {Element} element The element successfully highlighted. * @returns {void} * @global * @public *//** * @callback HookCallback * @param {Object<string, any>} env The environment variables of the hook. * @returns {void} * @global * @public *//* **********************************************     Begin prism-markup.js********************************************** */Prism.languages.markup = {	// BUG: NVD-CWE-Other Other	// 'comment': /<!--[\s\S]*?-->/,	// FIXED: 	'comment': /<!--(?:(?!<!--)[\s\S])*?-->/,	'prolog': /<\?[\s\S]+?\?>/,	'doctype': {		// https://www.w3.org/TR/xml/#NT-doctypedecl		pattern: /<!DOCTYPE(?:[^>"'[\]]|"[^"]*"|'[^']*')+(?:\[(?:[^<"'\]]|"[^"]*"|'[^']*'|<(?!!--)|<!--(?:[^-]|-(?!->))*-->)*\]\s*)?>/i,		greedy: true,		inside: {			'internal-subset': {				pattern: /(^[^\[]*\[)[\s\S]+(?=\]>$)/,				lookbehind: true,				greedy: true,				inside: null // see below			},			'string': {				pattern: /"[^"]*"|'[^']*'/,				greedy: true			},			'punctuation': /^<!|>$|[[\]]/,			'doctype-tag': /^DOCTYPE/,			'name': /[^\s<>'"]+/		}	},	'cdata': /<!\[CDATA\[[\s\S]*?\]\]>/i,	'tag': {		pattern: /<\/?(?!\d)[^\s>\/=$<%]+(?:\s(?:\s*[^\s>\/=]+(?:\s*=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+(?=[\s>]))|(?=[\s/>])))+)?\s*\/?>/,		greedy: true,		inside: {			'tag': {				pattern: /^<\/?[^\s>\/]+/,				inside: {					'punctuation': /^<\/?/,					'namespace': /^[^\s>\/:]+:/				}			},			'special-attr': [],			'attr-value': {				pattern: /=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+)/,				inside: {					'punctuation': [						{							pattern: /^=/,							alias: 'attr-equals'						},						/"|'/					]				}			},			'punctuation': /\/?>/,			'attr-name': {				pattern: /[^\s>\/]+/,				inside: {					'namespace': /^[^\s>\/:]+:/				}			}		}	},	'entity': [		{			pattern: /&[\da-z]{1,8};/i,			alias: 'named-entity'		},		/&#x?[\da-f]{1,8};/i	]};Prism.languages.markup['tag'].inside['attr-value'].inside['entity'] =	Prism.languages.markup['entity'];Prism.languages.markup['doctype'].inside['internal-subset'].inside = Prism.languages.markup;// Plugin to make entity title show the real entity, idea by Roman KomarovPrism.hooks.add('wrap', function (env) {	if (env.type === 'entity') {		env.attributes['title'] = env.content.replace(/&amp;/, '&');	}});Object.defineProperty(Prism.languages.markup.tag, 'addInlined', {	/**	 * Adds an inlined language to markup.	 *	 * An example of an inlined language is CSS with `<style>` tags.	 *	 * @param {string} tagName The name of the tag that contains the inlined language. This name will be treated as	 * case insensitive.	 * @param {string} lang The language key.	 * @example	 * addInlined('style', 'css');	 */	value: function addInlined(tagName, lang) {		var includedCdataInside = {};		includedCdataInside['language-' + lang] = {			pattern: /(^<!\[CDATA\[)[\s\S]+?(?=\]\]>$)/i,			lookbehind: true,			inside: Prism.languages[lang]		};		includedCdataInside['cdata'] = /^<!\[CDATA\[|\]\]>$/i;		var inside = {			'included-cdata': {				pattern: /<!\[CDATA\[[\s\S]*?\]\]>/i,				inside: includedCdataInside			}		};		inside['language-' + lang] = {			pattern: /[\s\S]+/,			inside: Prism.languages[lang]		};		var def = {};		def[tagName] = {			pattern: RegExp(/(<__[^>]*>)(?:<!\[CDATA\[(?:[^\]]|\](?!\]>))*\]\]>|(?!<!\[CDATA\[)[\s\S])*?(?=<\/__>)/.source.replace(/__/g, function () { return tagName; }), 'i'),			lookbehind: true,			greedy: true,			inside: inside		};		Prism.languages.insertBefore('markup', 'cdata', def);	}});Object.defineProperty(Prism.languages.markup.tag, 'addAttribute', {	/**	 * Adds an pattern to highlight languages embedded in HTML attributes.	 *	 * An example of an inlined language is CSS with `style` attributes.	 *	 * @param {string} attrName The name of the tag that contains the inlined language. This name will be treated as	 * case insensitive.	 * @param {string} lang The language key.	 * @example	 * addAttribute('style', 'css');	 */	value: function (attrName, lang) {		Prism.languages.markup.tag.inside['special-attr'].push({			pattern: RegExp(				/(^|["'\s])/.source + '(?:' + attrName + ')' + /\s*=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+(?=[\s>]))/.source,				'i'			),			lookbehind: true,			inside: {				'attr-name': /^[^\s=]+/,				'attr-value': {					pattern: /=[\s\S]+/,					inside: {						'value': {							pattern: /(^=\s*(["']|(?!["'])))\S[\s\S]*(?=\2$)/,							lookbehind: true,							alias: [lang, 'language-' + lang],							inside: Prism.languages[lang]						},						'punctuation': [							{								pattern: /^=/,								alias: 'attr-equals'							},							/"|'/						]					}				}			}		});	}});Prism.languages.html = Prism.languages.markup;Prism.languages.mathml = Prism.languages.markup;Prism.languages.svg = Prism.languages.markup;Prism.languages.xml = Prism.languages.extend('markup', {});Prism.languages.ssml = Prism.languages.xml;Prism.languages.atom = Prism.languages.xml;Prism.languages.rss = Prism.languages.xml;/* **********************************************     Begin prism-css.js********************************************** */(function (Prism) {	var string = /(?:"(?:\\(?:\r\n|[\s\S])|[^"\\\r\n])*"|'(?:\\(?:\r\n|[\s\S])|[^'\\\r\n])*')/;	Prism.languages.css = {		'comment': /\/\*[\s\S]*?\*\//,		'atrule': {			pattern: /@[\w-](?:[^;{\s]|\s+(?![\s{]))*(?:;|(?=\s*\{))/,			inside: {				'rule': /^@[\w-]+/,				'selector-function-argument': {					pattern: /(\bselector\s*\(\s*(?![\s)]))(?:[^()\s]|\s+(?![\s)])|\((?:[^()]|\([^()]*\))*\))+(?=\s*\))/,					lookbehind: true,					alias: 'selector'				},				'keyword': {					pattern: /(^|[^\w-])(?:and|not|only|or)(?![\w-])/,					lookbehind: true				}				// See rest below			}		},		'url': {			// https://drafts.csswg.org/css-values-3/#urls			pattern: RegExp('\\burl\\((?:' + string.source + '|' + /(?:[^\\\r\n()"']|\\[\s\S])*/.source + ')\\)', 'i'),			greedy: true,			inside: {				'function': /^url/i,				'punctuation': /^\(|\)$/,				'string': {					pattern: RegExp('^' + string.source + '$'),					alias: 'url'				}			}		},		'selector': {			pattern: RegExp('(^|[{}\\s])[^{}\\s](?:[^{};"\'\\s]|\\s+(?![\\s{])|' + string.source + ')*(?=\\s*\\{)'),			lookbehind: true		},		'string': {			pattern: string,			greedy: true		},		'property': {			pattern: /(^|[^-\w\xA0-\uFFFF])(?!\s)[-_a-z\xA0-\uFFFF](?:(?!\s)[-\w\xA0-\uFFFF])*(?=\s*:)/i,			lookbehind: true		},		'important': /!important\b/i,		'function': {			pattern: /(^|[^-a-z0-9])[-a-z0-9]+(?=\()/i,			lookbehind: true		},		'punctuation': /[(){};:,]/	};	Prism.languages.css['atrule'].inside.rest = Prism.languages.css;	var markup = Prism.languages.markup;	if (markup) {		markup.tag.addInlined('style', 'css');		markup.tag.addAttribute('style', 'css');	}}(Prism));/* **********************************************     Begin prism-clike.js********************************************** */Prism.languages.clike = {	'comment': [		{			pattern: /(^|[^\\])\/\*[\s\S]*?(?:\*\/|$)/,			lookbehind: true,			greedy: true		},		{			pattern: /(^|[^\\:])\/\/.*/,			lookbehind: true,			greedy: 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+|\bcatch\s+\()[\w.\\]+/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': /\b\w+(?=\()/,	'number': /\b0x[\da-f]+\b|(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?/i,	'operator': /[<>]=?|[!=]=?=?|--?|\+\+?|&&?|\|\|?|[?*/~^%]/,	'punctuation': /[{}[\];(),.:]/};/* **********************************************     Begin prism-javascript.js********************************************** */Prism.languages.javascript = Prism.languages.extend('clike', {	'class-name': [		Prism.languages.clike['class-name'],		{			pattern: /(^|[^$\w\xA0-\uFFFF])(?!\s)[_$A-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\.(?:prototype|constructor))/,			lookbehind: true		}	],	'keyword': [		{			pattern: /((?:^|\})\s*)catch\b/,			lookbehind: true		},		{			pattern: /(^|[^.]|\.\.\.\s*)\b(?:as|assert(?=\s*\{)|async(?=\s*(?:function\b|\(|[$\w\xA0-\uFFFF]|$))|await|break|case|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally(?=\s*(?:\{|$))|for|from(?=\s*(?:['"]|$))|function|(?:get|set)(?=\s*(?:[#\[$\w\xA0-\uFFFF]|$))|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|static|super|switch|this|throw|try|typeof|undefined|var|void|while|with|yield)\b/,			lookbehind: true		},	],	// Allow for all non-ASCII characters (See http://stackoverflow.com/a/2008444)	'function': /#?(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*(?:\.\s*(?:apply|bind|call)\s*)?\()/,	'number': /\b(?:(?:0[xX](?:[\dA-Fa-f](?:_[\dA-Fa-f])?)+|0[bB](?:[01](?:_[01])?)+|0[oO](?:[0-7](?:_[0-7])?)+)n?|(?:\d(?:_\d)?)+n|NaN|Infinity)\b|(?:\b(?:\d(?:_\d)?)+\.?(?:\d(?:_\d)?)*|\B\.(?:\d(?:_\d)?)+)(?:[Ee][+-]?(?:\d(?:_\d)?)+)?/,	'operator': /--|\+\+|\*\*=?|=>|&&=?|\|\|=?|[!=]==|<<=?|>>>?=?|[-+*/%&|^!=<>]=?|\.{3}|\?\?=?|\?\.?|[~:]/});Prism.languages.javascript['class-name'][0].pattern = /(\b(?:class|interface|extends|implements|instanceof|new)\s+)[\w.\\]+/;Prism.languages.insertBefore('javascript', 'keyword', {	'regex': {		// eslint-disable-next-line regexp/no-dupe-characters-character-class		pattern: /((?:^|[^$\w\xA0-\uFFFF."'\])\s]|\b(?:return|yield))\s*)\/(?:\[(?:[^\]\\\r\n]|\\.)*\]|\\.|[^/\\\[\r\n])+\/[dgimyus]{0,7}(?=(?:\s|\/\*(?:[^*]|\*(?!\/))*\*\/)*(?:$|[\r\n,.;:})\]]|\/\/))/,		lookbehind: true,		greedy: true,		inside: {			'regex-source': {				pattern: /^(\/)[\s\S]+(?=\/[a-z]*$)/,				lookbehind: true,				alias: 'language-regex',				inside: Prism.languages.regex			},			'regex-delimiter': /^\/|\/$/,			'regex-flags': /^[a-z]+$/,		}	},	// This must be declared before keyword because we use "function" inside the look-forward	'function-variable': {		pattern: /#?(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*[=:]\s*(?:async\s*)?(?:\bfunction\b|(?:\((?:[^()]|\([^()]*\))*\)|(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)\s*=>))/,		alias: 'function'	},	'parameter': [		{			pattern: /(function(?:\s+(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)?\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\))/,			lookbehind: true,			inside: Prism.languages.javascript		},		{			pattern: /(^|[^$\w\xA0-\uFFFF])(?!\s)[_$a-z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*=>)/i,			lookbehind: true,			inside: Prism.languages.javascript		},		{			pattern: /(\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*=>)/,			lookbehind: true,			inside: Prism.languages.javascript		},		{			pattern: /((?:\b|\s|^)(?!(?: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|undefined|var|void|while|with|yield)(?![$\w\xA0-\uFFFF]))(?:(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*\s*)\(\s*|\]\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*\{)/,			lookbehind: true,			inside: Prism.languages.javascript		}	],	'constant': /\b[A-Z](?:[A-Z_]|\dx?)*\b/});Prism.languages.insertBefore('javascript', 'string', {	'hashbang': {		pattern: /^#!.*/,		greedy: true,		alias: 'comment'	},	'template-string': {		pattern: /`(?:\\[\s\S]|\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}|(?!\$\{)[^\\`])*`/,		greedy: true,		inside: {			'template-punctuation': {				pattern: /^`|`$/,				alias: 'string'			},			'interpolation': {				pattern: /((?:^|[^\\])(?:\\{2})*)\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}/,				lookbehind: true,				inside: {					'interpolation-punctuation': {						pattern: /^\$\{|\}$/,						alias: 'punctuation'					},					rest: Prism.languages.javascript				}			},			'string': /[\s\S]+/		}	}});if (Prism.languages.markup) {	Prism.languages.markup.tag.addInlined('script', 'javascript');	// add attribute support for all DOM events.	// https://developer.mozilla.org/en-US/docs/Web/Events#Standard_events	Prism.languages.markup.tag.addAttribute(		/on(?:abort|blur|change|click|composition(?:end|start|update)|dblclick|error|focus(?:in|out)?|key(?:down|up)|load|mouse(?:down|enter|leave|move|out|over|up)|reset|resize|scroll|select|slotchange|submit|unload|wheel)/.source,		'javascript'	);}Prism.languages.js = Prism.languages.javascript;/* **********************************************     Begin prism-file-highlight.js********************************************** */(function () {	if (typeof Prism === 'undefined' || typeof document === 'undefined') {		return;	}	// https://developer.mozilla.org/en-US/docs/Web/API/Element/matches#Polyfill	if (!Element.prototype.matches) {		Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;	}	var LOADING_MESSAGE = 'Loading…';	var FAILURE_MESSAGE = function (status, message) {		return '✖ Error ' + status + ' while fetching file: ' + message;	};	var FAILURE_EMPTY_MESSAGE = '✖ Error: File does not exist or is empty';	var EXTENSIONS = {		'js': 'javascript',		'py': 'python',		'rb': 'ruby',		'ps1': 'powershell',		'psm1': 'powershell',		'sh': 'bash',		'bat': 'batch',		'h': 'c',		'tex': 'latex'	};	var STATUS_ATTR = 'data-src-status';	var STATUS_LOADING = 'loading';	var STATUS_LOADED = 'loaded';	var STATUS_FAILED = 'failed';	var SELECTOR = 'pre[data-src]:not([' + STATUS_ATTR + '="' + STATUS_LOADED + '"])'		+ ':not([' + STATUS_ATTR + '="' + STATUS_LOADING + '"])';	var lang = /\blang(?:uage)?-([\w-]+)\b/i;	/**	 * Sets the Prism `language-xxxx` or `lang-xxxx` class to the given language.	 *	 * @param {HTMLElement} element	 * @param {string} language	 * @returns {void}	 */	function setLanguageClass(element, language) {		var className = element.className;		className = className.replace(lang, ' ') + ' language-' + language;		element.className = className.replace(/\s+/g, ' ').trim();	}	Prism.hooks.add('before-highlightall', function (env) {		env.selector += ', ' + SELECTOR;	});	Prism.hooks.add('before-sanity-check', function (env) {		var pre = /** @type {HTMLPreElement} */ (env.element);		if (pre.matches(SELECTOR)) {			env.code = ''; // fast-path the whole thing and go to complete			pre.setAttribute(STATUS_ATTR, STATUS_LOADING); // mark as loading			// add code element with loading message			var code = pre.appendChild(document.createElement('CODE'));			code.textContent = LOADING_MESSAGE;			var src = pre.getAttribute('data-src');			var language = env.language;			if (language === 'none') {				// the language might be 'none' because there is no language set;				// in this case, we want to use the extension as the language				var extension = (/\.(\w+)$/.exec(src) || [, 'none'])[1];				language = EXTENSIONS[extension] || extension;			}			// set language classes			setLanguageClass(code, language);			setLanguageClass(pre, language);			// preload the language			var autoloader = Prism.plugins.autoloader;			if (autoloader) {				autoloader.loadLanguages(language);			}			// load file			var xhr = new XMLHttpRequest();			xhr.open('GET', src, true);			xhr.onreadystatechange = function () {				if (xhr.readyState == 4) {					if (xhr.status < 400 && xhr.responseText) {						// mark as loaded						pre.setAttribute(STATUS_ATTR, STATUS_LOADED);						// highlight code						code.textContent = xhr.responseText;						Prism.highlightElement(code);					} else {						// mark as failed						pre.setAttribute(STATUS_ATTR, STATUS_FAILED);						if (xhr.status >= 400) {							code.textContent = FAILURE_MESSAGE(xhr.status, xhr.statusText);						} else {							code.textContent = FAILURE_EMPTY_MESSAGE;						}					}				}			};			xhr.send(null);		}	});	Prism.plugins.fileHighlight = {		/**		 * Executes the File Highlight plugin for all matching `pre` elements under the given container.		 *		 * Note: Elements which are already loaded or currently loading will not be touched by this method.		 *		 * @param {ParentNode} [container=document]		 */		highlight: function highlight(container) {			var elements = (container || document).querySelectorAll(SELECTOR);			for (var i = 0, element; (element = elements[i++]);) {				Prism.highlightElement(element);			}		}	};	var logged = false;	/** @deprecated Use `Prism.plugins.fileHighlight.highlight` instead. */	Prism.fileHighlight = function () {		if (!logged) {			console.warn('Prism.fileHighlight is deprecated. Use `Prism.plugins.fileHighlight.highlight` instead.');			logged = true;		}		Prism.plugins.fileHighlight.highlight.apply(this, arguments);	};}());