08-27-周三_17-09-29

node_modules/prismjs/components/prism-core.js

@@ -0,0 +1,725 @@
+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 (_self){
+
+// Private helper vars
+var lang = /\blang(?:uage)?-([\w-]+)\b/i;
+var uniqueId = 0;
+
+
+var _ = {
+	manual: _self.Prism && _self.Prism.manual,
+	disableWorkerMessageHandler: _self.Prism && _self.Prism.disableWorkerMessageHandler,
+	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, ' ');
+			}
+		},
+
+		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 deepClone(o, visited) {
+			var clone, id, type = _.util.type(o);
+			visited = visited || {};
+
+			switch (type) {
+				case 'Object':
+					id = _.util.objId(o);
+					if (visited[id]) {
+						return visited[id];
+					}
+					clone = {};
+					visited[id] = clone;
+
+					for (var key in o) {
+						if (o.hasOwnProperty(key)) {
+							clone[key] = deepClone(o[key], visited);
+						}
+					}
+
+					return clone;
+
+				case 'Array':
+					id = _.util.objId(o);
+					if (visited[id]) {
+						return visited[id];
+					}
+					clone = [];
+					visited[id] = clone;
+
+					o.forEach(function (v, i) {
+						clone[i] = deepClone(v, visited);
+					});
+
+					return 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) {
+				return 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;
+			}
+		}
+	},
+
+	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 an object and a key.
+		 * @param inside The key (or language id) of the parent
+		 * @param before The key to insert before.
+		 * @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];
+			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],
+					    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: {},
+
+	highlightAll: function(async, callback) {
+		_.highlightAllUnder(document, async, callback);
+	},
+
+	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);
+		}
+	},
+
+	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.parentNode;
+		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);
+
+		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));
+		}
+	},
+
+	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);
+	},
+
+	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);
+	},
+
+	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);
+			}
+		}
+	},
+
+	Token: Token
+};
+
+_self.Prism = _;
+
+function Token(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 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 {string} text
+ * @param {LinkedList<string | Token>} tokenList
+ * @param {any} grammar
+ * @param {LinkedListNode<string | Token>} startNode
+ * @param {number} startPos
+ * @param {boolean} [oneshot=false]
+ * @param {string} [target]
+ */
+function matchGrammar(text, tokenList, grammar, startNode, startPos, oneshot, target) {
+	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 (target && target == token + ',' + j) {
+				return;
+			}
+
+			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(/[imsuy]*$/)[0];
+				pattern.pattern = RegExp(pattern.pattern.source, flags + 'g');
+			}
+
+			pattern = pattern.pattern || pattern;
+
+			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
+			) {
+
+				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
+
+				if (greedy && currentNode != tokenList.tail.prev) {
+					pattern.lastIndex = pos;
+					var match = pattern.exec(text);
+					if (!match) {
+						break;
+					}
+
+					var from = match.index + (lookbehind && match[1] ? match[1].length : 0);
+					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.prev.value.greedy));
+						k = k.next
+					) {
+						removeCount++;
+						p += k.value.length;
+					}
+					removeCount--;
+
+					// replace with the new match
+					str = text.slice(pos, p);
+					match.index -= pos;
+				} else {
+					pattern.lastIndex = 0;
+
+					var match = pattern.exec(str);
+				}
+
+				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 removeFrom = currentNode.prev;
+
+				if (before) {
+					removeFrom = addAfter(tokenList, removeFrom, before);
+					pos += before.length;
+				}
+
+				removeRange(tokenList, removeFrom, removeCount);
+
+				var wrapped = new Token(token, inside ? _.tokenize(match, inside) : match, alias, match, greedy);
+				currentNode = addAfter(tokenList, removeFrom, wrapped);
+
+				if (after) {
+					addAfter(tokenList, currentNode, after);
+				}
+
+
+				if (removeCount > 1)
+					matchGrammar(text, tokenList, grammar, currentNode.prev, pos, true, token + ',' + j);
+
+				if (oneshot)
+					break;
+			}
+		}
+	}
+}
+
+/**
+ * @typedef LinkedListNode
+ * @property {T} value
+ * @property {LinkedListNode<T> | null} prev The previous node.
+ * @property {LinkedListNode<T> | null} next The next node.
+ * @template T
+ */
+
+/**
+ * @template T
+ */
+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),
+				lang = message.language,
+				code = message.code,
+				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.js
+if (typeof global !== 'undefined') {
+	global.Prism = Prism;
+}