help/help3xsl/prism.js

/* PrismJS 1.15.0
https://prismjs.com/download.html#themes=prism-coy&languages=markup+css+clike+javascript+python+visual-basic&plugins=line-numbers+normalize-whitespace */
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
 */

var Prism = (function(){

// Private helper vars
var lang = /\blang(?:uage)?-([\w-]+)\b/i;
var uniqueId = 0;

var _ = _self.Prism = {
	manual: _self.Prism && _self.Prism.manual,
	disableWorkerMessageHandler: _self.Prism && _self.Prism.disableWorkerMessageHandler,
	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).slice(8, -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, visited) {
			var type = _.util.type(o);
			visited = visited || {};

			switch (type) {
				case 'Object':
					if (visited[_.util.objId(o)]) {
						return visited[_.util.objId(o)];
					}
					var clone = {};
					visited[_.util.objId(o)] = clone;

					for (var key in o) {
						if (o.hasOwnProperty(key)) {
							clone[key] = _.util.clone(o[key], visited);
						}
					}

					return clone;

				case 'Array':
					if (visited[_.util.objId(o)]) {
						return visited[_.util.objId(o)];
					}
					var clone = [];
					visited[_.util.objId(o)] = clone;

					o.forEach(function (v, i) {
						clone[i] = _.util.clone(v, visited);
					});

					return clone;
			}

			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];
				}
			}

			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(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) {
		_.highlightAllUnder(document, async, callback);
	},

	highlightAllUnder: function(container, 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 || container.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;

		if (element.parentNode) {
			// 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) {
				_.hooks.run('before-highlight', env);
				env.element.textContent = env.code;
				_.hooks.run('after-highlight', env);
			}
			_.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;

				_.hooks.run('after-highlight', env);
				_.hooks.run('complete', env);
				callback && callback.call(env.element);
			};

			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;

			_.hooks.run('after-highlight', env);

			_.hooks.run('complete', env);

			callback && callback.call(element);
		}
	},

	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);
	},

	matchGrammar: function (text, strarr, grammar, index, startPos, oneshot, target) {
		var Token = _.Token;

		for (var token in grammar) {
			if(!grammar.hasOwnProperty(token) || !grammar[token]) {
				continue;
			}

			if (token == target) {
				return;
			}

			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 = index, pos = startPos; i < strarr.length; pos += strarr[i].length, ++i) {

					var str = strarr[i];

					if (strarr.length > text.length) {
						// Something went terribly wrong, ABORT, ABORT!
						return;
					}

					if (str instanceof Token) {
						continue;
					}

					if (greedy && i != strarr.length - 1) {
						pattern.lastIndex = pos;
						var 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 || (!strarr[k].type && !strarr[k - 1].greedy)); ++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[i] instanceof Token) {
							continue;
						}

						// Number of tokens to delete and replace with the new match
						delNum = k - i;
						str = text.slice(pos, p);
						match.index -= pos;
					} else {
						pattern.lastIndex = 0;

						var match = pattern.exec(str),
							delNum = 1;
					}

					if (!match) {
						if (oneshot) {
							break;
						}

						continue;
					}

					if(lookbehind) {
						lookbehindLength = match[1] ? match[1].length : 0;
					}

					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) {
						++i;
						pos += before.length;
						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);

					if (delNum != 1)
						_.matchGrammar(text, strarr, grammar, i, pos, true, token);

					if (oneshot)
						break;
				}
			}
		}
	},

	tokenize: function(text, grammar, language) {
		var strarr = [text];

		var rest = grammar.rest;

		if (rest) {
			for (var token in rest) {
				grammar[token] = rest[token];
			}

			delete grammar.rest;
		}

		_.matchGrammar(text, strarr, grammar, 0, 0, false);

		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 (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;
	}

	if (!_.disableWorkerMessageHandler) {
		// 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;
}

//Get current script and highlight
var script = document.currentScript || [].slice.call(document.getElementsByTagName("script")).pop();

if (script) {
	_.filename = script.src;

	if (!_.manual && !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;
}
;
Prism.languages.markup = {
	'comment': /<!--[\s\S]*?-->/,
	'prolog': /<\?[\s\S]+?\?>/,
	'doctype': /<!DOCTYPE[\s\S]+?>/i,
	'cdata': /<!\[CDATA\[[\s\S]*?]]>/i,
	'tag': {
		pattern: /<\/?(?!\d)[^\s>\/=$<%]+(?:\s+[^\s>\/=]+(?:=(?:("|')(?:\\[\s\S]|(?!\1)[^\\])*\1|[^\s'">=]+))?)*\s*\/?>/i,
		greedy: true,
		inside: {
			'tag': {
				pattern: /^<\/?[^\s>\/]+/i,
				inside: {
					'punctuation': /^<\/?/,
					'namespace': /^[^\s>\/:]+:/
				}
			},
			'attr-value': {
				pattern: /=(?:("|')(?:\\[\s\S]|(?!\1)[^\\])*\1|[^\s'">=]+)/i,
				inside: {
					'punctuation': [
						/^=/,
						{
							pattern: /(^|[^\\])["']/,
							lookbehind: true
						}
					]
				}
			},
			'punctuation': /\/?>/,
			'attr-name': {
				pattern: /[^\s>\/]+/,
				inside: {
					'namespace': /^[^\s>\/:]+:/
				}
			}

		}
	},
	'entity': /&#?[\da-z]{1,8};/i
};

Prism.languages.markup['tag'].inside['attr-value'].inside['entity'] =
	Prism.languages.markup['entity'];

// 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;

Prism.languages.css = {
	'comment': /\/\*[\s\S]*?\*\//,
	'atrule': {
		pattern: /@[\w-]+?.*?(?:;|(?=\s*\{))/i,
		inside: {
			'rule': /@[\w-]+/
			// See rest below
		}
	},
	'url': /url\((?:(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1|.*?)\)/i,
	'selector': /[^{}\s][^{};]*?(?=\s*\{)/,
	'string': {
		pattern: /("|')(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,
		greedy: true
	},
	'property': /[-_a-z\xA0-\uFFFF][-\w\xA0-\uFFFF]*(?=\s*:)/i,
	'important': /!important\b/i,
	'function': /[-a-z0-9]+(?=\()/i,
	'punctuation': /[(){};:]/
};

Prism.languages.css['atrule'].inside.rest = Prism.languages.css;

if (Prism.languages.markup) {
	Prism.languages.insertBefore('markup', 'tag', {
		'style': {
			pattern: /(<style[\s\S]*?>)[\s\S]*?(?=<\/style>)/i,
			lookbehind: true,
			inside: Prism.languages.css,
			alias: 'language-css',
			greedy: true
		}
	});

	Prism.languages.insertBefore('inside', 'attr-value', {
		'style-attr': {
			pattern: /\s*style=("|')(?:\\[\s\S]|(?!\1)[^\\])*\1/i,
			inside: {
				'attr-name': {
					pattern: /^\s*style/i,
					inside: Prism.languages.markup.tag.inside
				},
				'punctuation': /^\s*=\s*['"]|['"]\s*$/,
				'attr-value': {
					pattern: /.+/i,
					inside: Prism.languages.css
				}
			},
			alias: 'language-css'
		}
	}, Prism.languages.markup.tag);
}
;
Prism.languages.clike = {
	'comment': [
		{
			pattern: /(^|[^\\])\/\*[\s\S]*?(?:\*\/|$)/,
			lookbehind: 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+)|(?:catch\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': /\w+(?=\()/,
	'number': /\b0x[\da-f]+\b|(?:\b\d+\.?\d*|\B\.\d+)(?:e[+-]?\d+)?/i,
	'operator': /--?|\+\+?|!=?=?|<=?|>=?|==?=?|&&?|\|\|?|\?|\*|\/|~|\^|%/,
	'punctuation': /[{}[\];(),.:]/
};

Prism.languages.javascript = Prism.languages.extend('clike', {
	'class-name': [
		Prism.languages.clike['class-name'],
		{
			pattern: /(^|[^$\w\xA0-\uFFFF])[_$A-Z\xA0-\uFFFF][$\w\xA0-\uFFFF]*(?=\.(?:prototype|constructor))/,
			lookbehind: true
		}
	],
	'keyword': [
		{
			pattern: /((?:^|})\s*)(?:catch|finally)\b/,
			lookbehind: true
		},
		/\b(?:as|async|await|break|case|class|const|continue|debugger|default|delete|do|else|enum|export|extends|for|from|function|get|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|set|static|super|switch|this|throw|try|typeof|var|void|while|with|yield)\b/
	],
	'number': /\b(?:(?:0[xX][\dA-Fa-f]+|0[bB][01]+|0[oO][0-7]+)n?|\d+n|NaN|Infinity)\b|(?:\b\d+\.?\d*|\B\.\d+)(?:[Ee][+-]?\d+)?/,
	// Allow for all non-ASCII characters (See http://stackoverflow.com/a/2008444)
	'function': /[_$a-zA-Z\xA0-\uFFFF][$\w\xA0-\uFFFF]*(?=\s*\(|\.(?:apply|bind|call)\()/,
	'operator': /-[-=]?|\+[+=]?|!=?=?|<<?=?|>>?>?=?|=(?:==?|>)?|&[&=]?|\|[|=]?|\*\*?=?|\/=?|~|\^=?|%=?|\?|\.{3}/
});

Prism.languages.javascript['class-name'][0].pattern = /(\b(?:class|interface|extends|implements|instanceof|new)\s+)[\w.\\]+/

Prism.languages.insertBefore('javascript', 'keyword', {
	'regex': {
		pattern: /((?:^|[^$\w\xA0-\uFFFF."'\])\s])\s*)\/(\[[^\]\r\n]+]|\\.|[^/\\\[\r\n])+\/[gimyu]{0,5}(?=\s*($|[\r\n,.;})\]]))/,
		lookbehind: true,
		greedy: true
	},
	// This must be declared before keyword because we use "function" inside the look-forward
	'function-variable': {
		pattern: /[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*(?=\s*[=:]\s*(?:function\b|(?:\([^()]*\)|[_$a-z\xA0-\uFFFF][$\w\xA0-\uFFFF]*)\s*=>))/i,
		alias: 'function'
	},
	'constant': /\b[A-Z][A-Z\d_]*\b/
});

Prism.languages.insertBefore('javascript', 'string', {
	'template-string': {
		pattern: /`(?:\\[\s\S]|\${[^}]+}|[^\\`])*`/,
		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[\s\S]*?>)[\s\S]*?(?=<\/script>)/i,
			lookbehind: true,
			inside: Prism.languages.javascript,
			alias: 'language-javascript',
			greedy: true
		}
	});
}

Prism.languages.js = Prism.languages.javascript;

Prism.languages.python = {
	'comment': {
		pattern: /(^|[^\\])#.*/,
		lookbehind: true
	},
	'triple-quoted-string': {
		pattern: /("""|''')[\s\S]+?\1/,
		greedy: true,
		alias: 'string'
	},
	'string': {
		pattern: /("|')(?:\\.|(?!\1)[^\\\r\n])*\1/,
		greedy: true
	},
	'function': {
		pattern: /((?:^|\s)def[ \t]+)[a-zA-Z_]\w*(?=\s*\()/g,
		lookbehind: true
	},
	'class-name': {
		pattern: /(\bclass\s+)\w+/i,
		lookbehind: true
	},
	'keyword': /\b(?:and|as|assert|async|await|break|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|nonlocal|not|or|pass|print|raise|return|try|while|with|yield)\b/,
	'builtin':/\b(?:__import__|abs|all|any|apply|ascii|basestring|bin|bool|buffer|bytearray|bytes|callable|chr|classmethod|cmp|coerce|compile|complex|delattr|dict|dir|divmod|enumerate|eval|execfile|file|filter|float|format|frozenset|getattr|globals|hasattr|hash|help|hex|id|input|int|intern|isinstance|issubclass|iter|len|list|locals|long|map|max|memoryview|min|next|object|oct|open|ord|pow|property|range|raw_input|reduce|reload|repr|reversed|round|set|setattr|slice|sorted|staticmethod|str|sum|super|tuple|type|unichr|unicode|vars|xrange|zip)\b/,
	'boolean': /\b(?:True|False|None)\b/,
	'number': /(?:\b(?=\d)|\B(?=\.))(?:0[bo])?(?:(?:\d|0x[\da-f])[\da-f]*\.?\d*|\.\d+)(?:e[+-]?\d+)?j?\b/i,
	'operator': /[-+%=]=?|!=|\*\*?=?|\/\/?=?|<[<=>]?|>[=>]?|[&|^~]/,
	'punctuation': /[{}[\];(),.:]/
};

Prism.languages['visual-basic'] = {
	'comment': {
		pattern: /(?:['‘’]|REM\b).*/i,
		inside: {
			'keyword': /^REM/i
		}
	},
	'directive': {
		pattern: /#(?:Const|Else|ElseIf|End|ExternalChecksum|ExternalSource|If|Region)(?:[^\S\r\n]_[^\S\r\n]*(?:\r\n?|\n)|.)+/i,
		alias: 'comment',
		greedy: true
	},
	'string': {
		pattern: /["“”](?:["“”]{2}|[^"“”])*["“”]C?/i,
		greedy: true
	},
	'date': {
		pattern: /#[^\S\r\n]*(?:\d+([/-])\d+\1\d+(?:[^\S\r\n]+(?:\d+[^\S\r\n]*(?:AM|PM)|\d+:\d+(?::\d+)?(?:[^\S\r\n]*(?:AM|PM))?))?|(?:\d+[^\S\r\n]*(?:AM|PM)|\d+:\d+(?::\d+)?(?:[^\S\r\n]*(?:AM|PM))?))[^\S\r\n]*#/i,
		alias: 'builtin'
	},
	'number': /(?:(?:\b\d+(?:\.\d+)?|\.\d+)(?:E[+-]?\d+)?|&[HO][\dA-F]+)(?:U?[ILS]|[FRD])?/i,
	'boolean': /\b(?:True|False|Nothing)\b/i,
	'keyword': /\b(?:AddHandler|AddressOf|Alias|And(?:Also)?|As|Boolean|ByRef|Byte|ByVal|Call|Case|Catch|C(?:Bool|Byte|Char|Date|Dbl|Dec|Int|Lng|Obj|SByte|Short|Sng|Str|Type|UInt|ULng|UShort)|Char|Class|Const|Continue|Date|Decimal|Declare|Default|Delegate|Dim|DirectCast|Do|Double|Each|Else(?:If)?|End(?:If)?|Enum|Erase|Error|Event|Exit|Finally|For|Friend|Function|Get(?:Type|XMLNamespace)?|Global|GoSub|GoTo|Handles|If|Implements|Imports|In|Inherits|Integer|Interface|Is|IsNot|Let|Lib|Like|Long|Loop|Me|Mod|Module|Must(?:Inherit|Override)|My(?:Base|Class)|Namespace|Narrowing|New|Next|Not(?:Inheritable|Overridable)?|Object|Of|On|Operator|Option(?:al)?|Or(?:Else)?|Out|Overloads|Overridable|Overrides|ParamArray|Partial|Private|Property|Protected|Public|RaiseEvent|ReadOnly|ReDim|RemoveHandler|Resume|Return|SByte|Select|Set|Shadows|Shared|short|Single|Static|Step|Stop|String|Structure|Sub|SyncLock|Then|Throw|To|Try|TryCast|TypeOf|U(?:Integer|Long|Short)|Using|Variant|Wend|When|While|Widening|With(?:Events)?|WriteOnly|Xor)\b/i,
	'operator': [
		/[+\-*/\\^<=>&#@$%!]/,
		{
			pattern: /([^\S\r\n])_(?=[^\S\r\n]*[\r\n])/,
			lookbehind: true
		}
	],
	'punctuation': /[{}().,:?]/
};

Prism.languages.vb = Prism.languages['visual-basic'];
(function () {

	if (typeof self === 'undefined' || !self.Prism || !self.document) {
		return;
	}

	/**
	 * Plugin name which is used as a class name for <pre> which is activating the plugin
	 * @type {String}
	 */
	var PLUGIN_NAME = 'line-numbers';

	/**
	 * Regular expression used for determining line breaks
	 * @type {RegExp}
	 */
	var NEW_LINE_EXP = /\n(?!$)/g;

	/**
	 * Resizes line numbers spans according to height of line of code
	 * @param {Element} element <pre> element
	 */
	var _resizeElement = function (element) {
		var codeStyles = getStyles(element);
		var whiteSpace = codeStyles['white-space'];

		if (whiteSpace === 'pre-wrap' || whiteSpace === 'pre-line') {
			var codeElement = element.querySelector('code');
			var lineNumbersWrapper = element.querySelector('.line-numbers-rows');
			var lineNumberSizer = element.querySelector('.line-numbers-sizer');
			var codeLines = codeElement.textContent.split(NEW_LINE_EXP);

			if (!lineNumberSizer) {
				lineNumberSizer = document.createElement('span');
				lineNumberSizer.className = 'line-numbers-sizer';

				codeElement.appendChild(lineNumberSizer);
			}

			lineNumberSizer.style.display = 'block';

			codeLines.forEach(function (line, lineNumber) {
				lineNumberSizer.textContent = line || '\n';
				var lineSize = lineNumberSizer.getBoundingClientRect().height;
				lineNumbersWrapper.children[lineNumber].style.height = lineSize + 'px';
			});

			lineNumberSizer.textContent = '';
			lineNumberSizer.style.display = 'none';
		}
	};

	/**
	 * Returns style declarations for the element
	 * @param {Element} element
	 */
	var getStyles = function (element) {
		if (!element) {
			return null;
		}

		return window.getComputedStyle ? getComputedStyle(element) : (element.currentStyle || null);
	};

	window.addEventListener('resize', function () {
		Array.prototype.forEach.call(document.querySelectorAll('pre.' + PLUGIN_NAME), _resizeElement);
	});

	Prism.hooks.add('complete', function (env) {
		if (!env.code) {
			return;
		}

		// works only for <code> wrapped inside <pre> (not inline)
		var pre = env.element.parentNode;
		var clsReg = /\s*\bline-numbers\b\s*/;
		if (
			!pre || !/pre/i.test(pre.nodeName) ||
			// Abort only if nor the <pre> nor the <code> have the class
			(!clsReg.test(pre.className) && !clsReg.test(env.element.className))
		) {
			return;
		}

		if (env.element.querySelector('.line-numbers-rows')) {
			// Abort if line numbers already exists
			return;
		}

		if (clsReg.test(env.element.className)) {
			// Remove the class 'line-numbers' from the <code>
			env.element.className = env.element.className.replace(clsReg, ' ');
		}
		if (!clsReg.test(pre.className)) {
			// Add the class 'line-numbers' to the <pre>
			pre.className += ' line-numbers';
		}

		var match = env.code.match(NEW_LINE_EXP);
		var linesNum = match ? match.length + 1 : 1;
		var lineNumbersWrapper;

		var lines = new Array(linesNum + 1);
		lines = lines.join('<span></span>');

		lineNumbersWrapper = document.createElement('span');
		lineNumbersWrapper.setAttribute('aria-hidden', 'true');
		lineNumbersWrapper.className = 'line-numbers-rows';
		lineNumbersWrapper.innerHTML = lines;

		if (pre.hasAttribute('data-start')) {
			pre.style.counterReset = 'linenumber ' + (parseInt(pre.getAttribute('data-start'), 10) - 1);
		}

		env.element.appendChild(lineNumbersWrapper);

		_resizeElement(pre);

		Prism.hooks.run('line-numbers', env);
	});

	Prism.hooks.add('line-numbers', function (env) {
		env.plugins = env.plugins || {};
		env.plugins.lineNumbers = true;
	});

	/**
	 * Global exports
	 */
	Prism.plugins.lineNumbers = {
		/**
		 * Get node for provided line number
		 * @param {Element} element pre element
		 * @param {Number} number line number
		 * @return {Element|undefined}
		 */
		getLine: function (element, number) {
			if (element.tagName !== 'PRE' || !element.classList.contains(PLUGIN_NAME)) {
				return;
			}

			var lineNumberRows = element.querySelector('.line-numbers-rows');
			var lineNumberStart = parseInt(element.getAttribute('data-start'), 10) || 1;
			var lineNumberEnd = lineNumberStart + (lineNumberRows.children.length - 1);

			if (number < lineNumberStart) {
				number = lineNumberStart;
			}
			if (number > lineNumberEnd) {
				number = lineNumberEnd;
			}

			var lineIndex = number - lineNumberStart;

			return lineNumberRows.children[lineIndex];
		}
	};

}());
(function() {

var assign = Object.assign || function (obj1, obj2) {
	for (var name in obj2) {
		if (obj2.hasOwnProperty(name))
			obj1[name] = obj2[name];
	}
	return obj1;
}

function NormalizeWhitespace(defaults) {
	this.defaults = assign({}, defaults);
}

function toCamelCase(value) {
	return value.replace(/-(\w)/g, function(match, firstChar) {
		return firstChar.toUpperCase();
	});
}

function tabLen(str) {
	var res = 0;
	for (var i = 0; i < str.length; ++i) {
		if (str.charCodeAt(i) == '\t'.charCodeAt(0))
			res += 3;
	}
	return str.length + res;
}

NormalizeWhitespace.prototype = {
	setDefaults: function (defaults) {
		this.defaults = assign(this.defaults, defaults);
	},
	normalize: function (input, settings) {
		settings = assign(this.defaults, settings);

		for (var name in settings) {
			var methodName = toCamelCase(name);
			if (name !== "normalize" && methodName !== 'setDefaults' &&
					settings[name] && this[methodName]) {
				input = this[methodName].call(this, input, settings[name]);
			}
		}

		return input;
	},

	/*
	 * Normalization methods
	 */
	leftTrim: function (input) {
		return input.replace(/^\s+/, '');
	},
	rightTrim: function (input) {
		return input.replace(/\s+$/, '');
	},
	tabsToSpaces: function (input, spaces) {
		spaces = spaces|0 || 4;
		return input.replace(/\t/g, new Array(++spaces).join(' '));
	},
	spacesToTabs: function (input, spaces) {
		spaces = spaces|0 || 4;
		return input.replace(RegExp(' {' + spaces + '}', 'g'), '\t');
	},
	removeTrailing: function (input) {
		return input.replace(/\s*?$/gm, '');
	},
	// Support for deprecated plugin remove-initial-line-feed
	removeInitialLineFeed: function (input) {
		return input.replace(/^(?:\r?\n|\r)/, '');
	},
	removeIndent: function (input) {
		var indents = input.match(/^[^\S\n\r]*(?=\S)/gm);

		if (!indents || !indents[0].length)
			return input;

		indents.sort(function(a, b){return a.length - b.length; });

		if (!indents[0].length)
			return input;

		return input.replace(RegExp('^' + indents[0], 'gm'), '');
	},
	indent: function (input, tabs) {
		return input.replace(/^[^\S\n\r]*(?=\S)/gm, new Array(++tabs).join('\t') + '$&');
	},
	breakLines: function (input, characters) {
		characters = (characters === true) ? 80 : characters|0 || 80;

		var lines = input.split('\n');
		for (var i = 0; i < lines.length; ++i) {
			if (tabLen(lines[i]) <= characters)
				continue;

			var line = lines[i].split(/(\s+)/g),
			    len = 0;

			for (var j = 0; j < line.length; ++j) {
				var tl = tabLen(line[j]);
				len += tl;
				if (len > characters) {
					line[j] = '\n' + line[j];
					len = tl;
				}
			}
			lines[i] = line.join('');
		}
		return lines.join('\n');
	}
};

// Support node modules
if (typeof module !== 'undefined' && module.exports) {
	module.exports = NormalizeWhitespace;
}

// Exit if prism is not loaded
if (typeof Prism === 'undefined') {
	return;
}

Prism.plugins.NormalizeWhitespace = new NormalizeWhitespace({
	'remove-trailing': true,
	'remove-indent': true,
	'left-trim': true,
	'right-trim': true,
	/*'break-lines': 80,
	'indent': 2,*/
	'remove-initial-line-feed': true,
	/*'tabs-to-spaces': 4,
	'spaces-to-tabs': 4*/
});

Prism.hooks.add('before-sanity-check', function (env) {
	var Normalizer = Prism.plugins.NormalizeWhitespace;

	// Check settings
	if (env.settings && env.settings['whitespace-normalization'] === false) {
		return;
	}

	// Simple mode if there is no env.element
	if ((!env.element || !env.element.parentNode) && env.code) {
		env.code = Normalizer.normalize(env.code, env.settings);
		return;
	}

	// Normal mode
	var pre = env.element.parentNode;
	var clsReg = /\bno-whitespace-normalization\b/;
	if (!env.code || !pre || pre.nodeName.toLowerCase() !== 'pre' ||
			clsReg.test(pre.className) || clsReg.test(env.element.className))
		return;

	var children = pre.childNodes,
	    before = '',
	    after = '',
	    codeFound = false;

	// Move surrounding whitespace from the <pre> tag into the <code> tag
	for (var i = 0; i < children.length; ++i) {
		var node = children[i];

		if (node == env.element) {
			codeFound = true;
		} else if (node.nodeName === "#text") {
			if (codeFound) {
				after += node.nodeValue;
			} else {
				before += node.nodeValue;
			}

			pre.removeChild(node);
			--i;
		}
	}

	if (!env.element.children.length || !Prism.plugins.KeepMarkup) {
		env.code = before + env.code + after;
		env.code = Normalizer.normalize(env.code, env.settings);
	} else {
		// Preserve markup for keep-markup plugin
		var html = before + env.element.innerHTML + after;
		env.element.innerHTML = Normalizer.normalize(html, env.settings);
		env.code = env.element.textContent;
	}
});

}());