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1946 lines
57 KiB
1946 lines
57 KiB
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/* ********************************************** |
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Begin prism-core.js |
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********************************************** */ |
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/// <reference lib="WebWorker"/> |
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var _self = (typeof window !== 'undefined') |
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? window // if in browser |
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: ( |
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(typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope) |
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? self // if in worker |
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: {} // if in node js |
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); |
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/** |
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* Prism: Lightweight, robust, elegant syntax highlighting |
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* |
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* @license MIT <https://opensource.org/licenses/MIT> |
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* @author Lea Verou <https://lea.verou.me> |
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* @namespace |
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* @public |
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*/ |
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var Prism = (function (_self) { |
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// Private helper vars |
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var lang = /(?:^|\s)lang(?:uage)?-([\w-]+)(?=\s|$)/i; |
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var uniqueId = 0; |
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// The grammar object for plaintext |
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var plainTextGrammar = {}; |
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var _ = { |
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/** |
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* By default, Prism will attempt to highlight all code elements (by calling {@link Prism.highlightAll}) on the |
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* current page after the page finished loading. This might be a problem if e.g. you wanted to asynchronously load |
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* additional languages or plugins yourself. |
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* |
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* By setting this value to `true`, Prism will not automatically highlight all code elements on the page. |
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* |
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* You obviously have to change this value before the automatic highlighting started. To do this, you can add an |
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* empty Prism object into the global scope before loading the Prism script like this: |
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* |
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* ```js |
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* window.Prism = window.Prism || {}; |
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* Prism.manual = true; |
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* // add a new <script> to load Prism's script |
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* ``` |
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* |
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* @default false |
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* @type {boolean} |
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* @memberof Prism |
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* @public |
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*/ |
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manual: _self.Prism && _self.Prism.manual, |
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/** |
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* By default, if Prism is in a web worker, it assumes that it is in a worker it created itself, so it uses |
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* `addEventListener` to communicate with its parent instance. However, if you're using Prism manually in your |
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* own worker, you don't want it to do this. |
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* |
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* By setting this value to `true`, Prism will not add its own listeners to the worker. |
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* |
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* You obviously have to change this value before Prism executes. To do this, you can add an |
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* empty Prism object into the global scope before loading the Prism script like this: |
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* |
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* ```js |
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* window.Prism = window.Prism || {}; |
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* Prism.disableWorkerMessageHandler = true; |
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* // Load Prism's script |
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* ``` |
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* |
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* @default false |
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* @type {boolean} |
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* @memberof Prism |
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* @public |
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*/ |
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disableWorkerMessageHandler: _self.Prism && _self.Prism.disableWorkerMessageHandler, |
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/** |
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* A namespace for utility methods. |
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* |
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* All function in this namespace that are not explicitly marked as _public_ are for __internal use only__ and may |
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* change or disappear at any time. |
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* |
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* @namespace |
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* @memberof Prism |
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*/ |
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util: { |
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encode: function encode(tokens) { |
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if (tokens instanceof Token) { |
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return new Token(tokens.type, encode(tokens.content), tokens.alias); |
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} else if (Array.isArray(tokens)) { |
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return tokens.map(encode); |
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} else { |
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return tokens.replace(/&/g, '&').replace(/</g, '<').replace(/\u00a0/g, ' '); |
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} |
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}, |
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/** |
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* Returns the name of the type of the given value. |
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* |
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* @param {any} o |
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* @returns {string} |
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* @example |
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* type(null) === 'Null' |
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* type(undefined) === 'Undefined' |
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* type(123) === 'Number' |
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* type('foo') === 'String' |
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* type(true) === 'Boolean' |
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* type([1, 2]) === 'Array' |
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* type({}) === 'Object' |
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* type(String) === 'Function' |
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* type(/abc+/) === 'RegExp' |
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*/ |
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type: function (o) { |
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return Object.prototype.toString.call(o).slice(8, -1); |
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}, |
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/** |
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* Returns a unique number for the given object. Later calls will still return the same number. |
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* |
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* @param {Object} obj |
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* @returns {number} |
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*/ |
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objId: function (obj) { |
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if (!obj['__id']) { |
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Object.defineProperty(obj, '__id', { value: ++uniqueId }); |
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} |
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return obj['__id']; |
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}, |
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/** |
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* Creates a deep clone of the given object. |
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* |
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* The main intended use of this function is to clone language definitions. |
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* |
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* @param {T} o |
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* @param {Record<number, any>} [visited] |
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* @returns {T} |
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* @template T |
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*/ |
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clone: function deepClone(o, visited) { |
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visited = visited || {}; |
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var clone; var id; |
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switch (_.util.type(o)) { |
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case 'Object': |
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id = _.util.objId(o); |
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if (visited[id]) { |
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return visited[id]; |
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} |
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clone = /** @type {Record<string, any>} */ ({}); |
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visited[id] = clone; |
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for (var key in o) { |
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if (o.hasOwnProperty(key)) { |
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clone[key] = deepClone(o[key], visited); |
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} |
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} |
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return /** @type {any} */ (clone); |
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case 'Array': |
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id = _.util.objId(o); |
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if (visited[id]) { |
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return visited[id]; |
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} |
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clone = []; |
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visited[id] = clone; |
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(/** @type {Array} */(/** @type {any} */(o))).forEach(function (v, i) { |
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clone[i] = deepClone(v, visited); |
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}); |
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return /** @type {any} */ (clone); |
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default: |
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return o; |
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} |
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}, |
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/** |
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* Returns the Prism language of the given element set by a `language-xxxx` or `lang-xxxx` class. |
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* |
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* If no language is set for the element or the element is `null` or `undefined`, `none` will be returned. |
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* |
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* @param {Element} element |
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* @returns {string} |
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*/ |
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getLanguage: function (element) { |
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while (element) { |
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var m = lang.exec(element.className); |
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if (m) { |
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return m[1].toLowerCase(); |
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} |
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element = element.parentElement; |
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} |
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return 'none'; |
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}, |
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/** |
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* Sets the Prism `language-xxxx` class of the given element. |
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* |
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* @param {Element} element |
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* @param {string} language |
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* @returns {void} |
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*/ |
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setLanguage: function (element, language) { |
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// remove all `language-xxxx` classes |
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// (this might leave behind a leading space) |
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element.className = element.className.replace(RegExp(lang, 'gi'), ''); |
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// add the new `language-xxxx` class |
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// (using `classList` will automatically clean up spaces for us) |
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element.classList.add('language-' + language); |
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}, |
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/** |
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* Returns the script element that is currently executing. |
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* |
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* This does __not__ work for line script element. |
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* |
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* @returns {HTMLScriptElement | null} |
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*/ |
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currentScript: function () { |
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if (typeof document === 'undefined') { |
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return null; |
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} |
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if (document.currentScript && document.currentScript.tagName === 'SCRIPT' && 1 < 2 /* hack to trip TS' flow analysis */) { |
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return /** @type {any} */ (document.currentScript); |
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} |
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// IE11 workaround |
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// we'll get the src of the current script by parsing IE11's error stack trace |
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// this will not work for inline scripts |
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try { |
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throw new Error(); |
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} catch (err) { |
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// Get file src url from stack. Specifically works with the format of stack traces in IE. |
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// A stack will look like this: |
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// |
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// Error |
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// at _.util.currentScript (http://localhost/components/prism-core.js:119:5) |
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// at Global code (http://localhost/components/prism-core.js:606:1) |
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var src = (/at [^(\r\n]*\((.*):[^:]+:[^:]+\)$/i.exec(err.stack) || [])[1]; |
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if (src) { |
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var scripts = document.getElementsByTagName('script'); |
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for (var i in scripts) { |
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if (scripts[i].src == src) { |
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return scripts[i]; |
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} |
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} |
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} |
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return null; |
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} |
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}, |
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/** |
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* Returns whether a given class is active for `element`. |
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* |
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* The class can be activated if `element` or one of its ancestors has the given class and it can be deactivated |
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* if `element` or one of its ancestors has the negated version of the given class. The _negated version_ of the |
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* given class is just the given class with a `no-` prefix. |
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* |
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* Whether the class is active is determined by the closest ancestor of `element` (where `element` itself is |
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* closest ancestor) that has the given class or the negated version of it. If neither `element` nor any of its |
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* ancestors have the given class or the negated version of it, then the default activation will be returned. |
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* |
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* In the paradoxical situation where the closest ancestor contains __both__ the given class and the negated |
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* version of it, the class is considered active. |
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* |
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* @param {Element} element |
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* @param {string} className |
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* @param {boolean} [defaultActivation=false] |
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* @returns {boolean} |
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*/ |
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isActive: function (element, className, defaultActivation) { |
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var no = 'no-' + className; |
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while (element) { |
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var classList = element.classList; |
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if (classList.contains(className)) { |
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return true; |
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} |
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if (classList.contains(no)) { |
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return false; |
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} |
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element = element.parentElement; |
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} |
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return !!defaultActivation; |
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} |
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}, |
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|
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/** |
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* This namespace contains all currently loaded languages and the some helper functions to create and modify languages. |
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* |
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* @namespace |
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* @memberof Prism |
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* @public |
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*/ |
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languages: { |
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/** |
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* The grammar for plain, unformatted text. |
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*/ |
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plain: plainTextGrammar, |
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plaintext: plainTextGrammar, |
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text: plainTextGrammar, |
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txt: plainTextGrammar, |
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/** |
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* Creates a deep copy of the language with the given id and appends the given tokens. |
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* |
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* If a token in `redef` also appears in the copied language, then the existing token in the copied language |
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* will be overwritten at its original position. |
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* |
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* ## Best practices |
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* |
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* Since the position of overwriting tokens (token in `redef` that overwrite tokens in the copied language) |
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* doesn't matter, they can technically be in any order. However, this can be confusing to others that trying to |
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* understand the language definition because, normally, the order of tokens matters in Prism grammars. |
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* |
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* Therefore, it is encouraged to order overwriting tokens according to the positions of the overwritten tokens. |
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* Furthermore, all non-overwriting tokens should be placed after the overwriting ones. |
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* |
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* @param {string} id The id of the language to extend. This has to be a key in `Prism.languages`. |
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* @param {Grammar} redef The new tokens to append. |
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* @returns {Grammar} The new language created. |
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* @public |
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* @example |
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* Prism.languages['css-with-colors'] = Prism.languages.extend('css', { |
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* // Prism.languages.css already has a 'comment' token, so this token will overwrite CSS' 'comment' token |
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* // at its original position |
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* 'comment': { ... }, |
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* // CSS doesn't have a 'color' token, so this token will be appended |
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* 'color': /\b(?:red|green|blue)\b/ |
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* }); |
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*/ |
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extend: function (id, redef) { |
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var lang = _.util.clone(_.languages[id]); |
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for (var key in redef) { |
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lang[key] = redef[key]; |
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} |
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return lang; |
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}, |
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/** |
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* Inserts tokens _before_ another token in a language definition or any other grammar. |
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* |
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* ## Usage |
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* |
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* This helper method makes it easy to modify existing languages. For example, the CSS language definition |
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* not only defines CSS highlighting for CSS documents, but also needs to define highlighting for CSS embedded |
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* in HTML through `<style>` elements. To do this, it needs to modify `Prism.languages.markup` and add the |
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* appropriate tokens. However, `Prism.languages.markup` is a regular JavaScript object literal, so if you do |
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* this: |
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* |
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* ```js |
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* Prism.languages.markup.style = { |
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* // token |
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* }; |
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* ``` |
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* |
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* then the `style` token will be added (and processed) at the end. `insertBefore` allows you to insert tokens |
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* before existing tokens. For the CSS example above, you would use it like this: |
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* |
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* ```js |
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* Prism.languages.insertBefore('markup', 'cdata', { |
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* 'style': { |
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* // token |
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* } |
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* }); |
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* ``` |
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* |
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* ## Special cases |
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* |
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* If the grammars of `inside` and `insert` have tokens with the same name, the tokens in `inside`'s grammar |
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* will be ignored. |
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* |
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* This behavior can be used to insert tokens after `before`: |
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* |
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* ```js |
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* Prism.languages.insertBefore('markup', 'comment', { |
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* 'comment': Prism.languages.markup.comment, |
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* // tokens after 'comment' |
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* }); |
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* ``` |
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* |
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* ## Limitations |
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* |
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* The main problem `insertBefore` has to solve is iteration order. Since ES2015, the iteration order for object |
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* properties is guaranteed to be the insertion order (except for integer keys) but some browsers behave |
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* differently when keys are deleted and re-inserted. So `insertBefore` can't be implemented by temporarily |
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* deleting properties which is necessary to insert at arbitrary positions. |
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* |
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* To solve this problem, `insertBefore` doesn't actually insert the given tokens into the target object. |
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* Instead, it will create a new object and replace all references to the target object with the new one. This |
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* can be done without temporarily deleting properties, so the iteration order is well-defined. |
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* |
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* However, only references that can be reached from `Prism.languages` or `insert` will be replaced. I.e. if |
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* you hold the target object in a variable, then the value of the variable will not change. |
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* |
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* ```js |
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* var oldMarkup = Prism.languages.markup; |
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* var newMarkup = Prism.languages.insertBefore('markup', 'comment', { ... }); |
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* |
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* assert(oldMarkup !== Prism.languages.markup); |
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* assert(newMarkup === Prism.languages.markup); |
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* ``` |
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* |
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* @param {string} inside The property of `root` (e.g. a language id in `Prism.languages`) that contains the |
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* object to be modified. |
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* @param {string} before The key to insert before. |
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* @param {Grammar} insert An object containing the key-value pairs to be inserted. |
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* @param {Object<string, any>} [root] The object containing `inside`, i.e. the object that contains the |
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* object to be modified. |
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* |
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* Defaults to `Prism.languages`. |
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* @returns {Grammar} The new grammar object. |
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* @public |
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*/ |
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insertBefore: function (inside, before, insert, root) { |
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root = root || /** @type {any} */ (_.languages); |
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var grammar = root[inside]; |
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/** @type {Grammar} */ |
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var ret = {}; |
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for (var token in grammar) { |
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if (grammar.hasOwnProperty(token)) { |
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|
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if (token == before) { |
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for (var newToken in insert) { |
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if (insert.hasOwnProperty(newToken)) { |
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ret[newToken] = insert[newToken]; |
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} |
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} |
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} |
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// Do not insert token which also occur in insert. See #1525 |
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if (!insert.hasOwnProperty(token)) { |
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ret[token] = grammar[token]; |
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} |
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} |
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} |
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var old = root[inside]; |
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root[inside] = ret; |
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// Update references in other language definitions |
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_.languages.DFS(_.languages, function (key, value) { |
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if (value === old && key != inside) { |
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this[key] = ret; |
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} |
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}); |
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return ret; |
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}, |
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|
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// Traverse a language definition with Depth First Search |
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DFS: function DFS(o, callback, type, visited) { |
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visited = visited || {}; |
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var objId = _.util.objId; |
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for (var i in o) { |
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if (o.hasOwnProperty(i)) { |
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callback.call(o, i, o[i], type || i); |
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var property = o[i]; |
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var propertyType = _.util.type(property); |
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if (propertyType === 'Object' && !visited[objId(property)]) { |
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visited[objId(property)] = true; |
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DFS(property, callback, null, visited); |
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} else if (propertyType === 'Array' && !visited[objId(property)]) { |
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visited[objId(property)] = true; |
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DFS(property, callback, i, visited); |
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} |
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} |
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} |
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} |
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}, |
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plugins: {}, |
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/** |
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* This is the most high-level function in Prism’s API. |
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* It fetches all the elements that have a `.language-xxxx` class and then calls {@link Prism.highlightElement} on |
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* each one of them. |
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* |
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* This is equivalent to `Prism.highlightAllUnder(document, async, callback)`. |
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* |
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* @param {boolean} [async=false] Same as in {@link Prism.highlightAllUnder}. |
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* @param {HighlightCallback} [callback] Same as in {@link Prism.highlightAllUnder}. |
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* @memberof Prism |
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* @public |
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*/ |
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highlightAll: function (async, callback) { |
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_.highlightAllUnder(document, async, callback); |
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}, |
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/** |
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* Fetches all the descendants of `container` that have a `.language-xxxx` class and then calls |
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* {@link Prism.highlightElement} on each one of them. |
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* |
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* The following hooks will be run: |
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* 1. `before-highlightall` |
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* 2. `before-all-elements-highlight` |
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* 3. All hooks of {@link Prism.highlightElement} for each element. |
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* |
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* @param {ParentNode} container The root element, whose descendants that have a `.language-xxxx` class will be highlighted. |
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* @param {boolean} [async=false] Whether each element is to be highlighted asynchronously using Web Workers. |
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* @param {HighlightCallback} [callback] An optional callback to be invoked on each element after its highlighting is done. |
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* @memberof Prism |
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* @public |
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*/ |
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highlightAllUnder: function (container, async, callback) { |
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var env = { |
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callback: callback, |
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container: container, |
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selector: 'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code' |
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}; |
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_.hooks.run('before-highlightall', env); |
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env.elements = Array.prototype.slice.apply(env.container.querySelectorAll(env.selector)); |
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_.hooks.run('before-all-elements-highlight', env); |
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for (var i = 0, element; (element = env.elements[i++]);) { |
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_.highlightElement(element, async === true, env.callback); |
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} |
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}, |
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|
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/** |
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* Highlights the code inside a single element. |
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* |
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* The following hooks will be run: |
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* 1. `before-sanity-check` |
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* 2. `before-highlight` |
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* 3. All hooks of {@link Prism.highlight}. These hooks will be run by an asynchronous worker if `async` is `true`. |
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* 4. `before-insert` |
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* 5. `after-highlight` |
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* 6. `complete` |
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* |
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* Some the above hooks will be skipped if the element doesn't contain any text or there is no grammar loaded for |
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* the element's language. |
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* |
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* @param {Element} element The element containing the code. |
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* It must have a class of `language-xxxx` to be processed, where `xxxx` is a valid language identifier. |
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* @param {boolean} [async=false] Whether the element is to be highlighted asynchronously using Web Workers |
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* to improve performance and avoid blocking the UI when highlighting very large chunks of code. This option is |
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* [disabled by default](https://prismjs.com/faq.html#why-is-asynchronous-highlighting-disabled-by-default). |
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* |
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* Note: All language definitions required to highlight the code must be included in the main `prism.js` file for |
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* asynchronous highlighting to work. You can build your own bundle on the |
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* [Download page](https://prismjs.com/download.html). |
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* @param {HighlightCallback} [callback] An optional callback to be invoked after the highlighting is done. |
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* Mostly useful when `async` is `true`, since in that case, the highlighting is done asynchronously. |
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* @memberof Prism |
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* @public |
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*/ |
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highlightElement: function (element, async, callback) { |
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// Find language |
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var language = _.util.getLanguage(element); |
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var grammar = _.languages[language]; |
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|
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// Set language on the element, if not present |
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_.util.setLanguage(element, language); |
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|
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// Set language on the parent, for styling |
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var parent = element.parentElement; |
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if (parent && parent.nodeName.toLowerCase() === 'pre') { |
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_.util.setLanguage(parent, language); |
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} |
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|
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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); |
|
if (!env.grammar) { |
|
throw new Error('The language "' + env.language + '" has no grammar.'); |
|
} |
|
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, '"') + '"'; |
|
} |
|
|
|
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 || match.index >= text.length) { |
|
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.js |
|
if (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 = { |
|
'comment': { |
|
pattern: /<!--(?:(?!<!--)[\s\S])*?-->/, |
|
greedy: true |
|
}, |
|
'prolog': { |
|
pattern: /<\?[\s\S]+?\?>/, |
|
greedy: true |
|
}, |
|
'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/i, |
|
'name': /[^\s<>'"]+/ |
|
} |
|
}, |
|
'cdata': { |
|
pattern: /<!\[CDATA\[[\s\S]*?\]\]>/i, |
|
greedy: true |
|
}, |
|
'tag': { |
|
pattern: /<\/?(?!\d)[^\s>\/=$<%]+(?:\s(?:\s*[^\s>\/=]+(?:\s*=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+(?=[\s>]))|(?=[\s/>])))+)?\s*\/?>/, |
|
greedy: true, |
|
inside: { |
|
'tag': { |
|
pattern: /^<\/?[^\s>\/]+/, |
|
inside: { |
|
'punctuation': /^<\/?/, |
|
'namespace': /^[^\s>\/:]+:/ |
|
} |
|
}, |
|
'special-attr': [], |
|
'attr-value': { |
|
pattern: /=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+)/, |
|
inside: { |
|
'punctuation': [ |
|
{ |
|
pattern: /^=/, |
|
alias: 'attr-equals' |
|
}, |
|
{ |
|
pattern: /^(\s*)["']|["']$/, |
|
lookbehind: true |
|
} |
|
] |
|
} |
|
}, |
|
'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 Komarov |
|
Prism.hooks.add('wrap', function (env) { |
|
|
|
if (env.type === 'entity') { |
|
env.attributes['title'] = env.content.replace(/&/, '&'); |
|
} |
|
}); |
|
|
|
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: RegExp('@[\\w-](?:' + /[^;{\s"']|\s+(?!\s)/.source + '|' + string.source + ')*?' + /(?:;|(?=\s*\{))/.source), |
|
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|extends|implements|instanceof|interface|new|trait)\s+|\bcatch\s+\()[\w.\\]+/i, |
|
lookbehind: true, |
|
inside: { |
|
'punctuation': /[.\\]/ |
|
} |
|
}, |
|
'keyword': /\b(?:break|catch|continue|do|else|finally|for|function|if|in|instanceof|new|null|return|throw|try|while)\b/, |
|
'boolean': /\b(?:false|true)\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])*(?=\.(?:constructor|prototype))/, |
|
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': { |
|
pattern: RegExp( |
|
/(^|[^\w$])/.source + |
|
'(?:' + |
|
( |
|
// constant |
|
/NaN|Infinity/.source + |
|
'|' + |
|
// binary integer |
|
/0[bB][01]+(?:_[01]+)*n?/.source + |
|
'|' + |
|
// octal integer |
|
/0[oO][0-7]+(?:_[0-7]+)*n?/.source + |
|
'|' + |
|
// hexadecimal integer |
|
/0[xX][\dA-Fa-f]+(?:_[\dA-Fa-f]+)*n?/.source + |
|
'|' + |
|
// decimal bigint |
|
/\d+(?:_\d+)*n/.source + |
|
'|' + |
|
// decimal number (integer or float) but no bigint |
|
/(?:\d+(?:_\d+)*(?:\.(?:\d+(?:_\d+)*)?)?|\.\d+(?:_\d+)*)(?:[Ee][+-]?\d+(?:_\d+)*)?/.source |
|
) + |
|
')' + |
|
/(?![\w$])/.source |
|
), |
|
lookbehind: true |
|
}, |
|
'operator': /--|\+\+|\*\*=?|=>|&&=?|\|\|=?|[!=]==|<<=?|>>>?=?|[-+*/%&|^!=<>]=?|\.{3}|\?\?=?|\?\.?|[~:]/ |
|
}); |
|
|
|
Prism.languages.javascript['class-name'][0].pattern = /(\b(?:class|extends|implements|instanceof|interface|new)\s+)[\w.\\]+/; |
|
|
|
Prism.languages.insertBefore('javascript', 'keyword', { |
|
'regex': { |
|
pattern: RegExp( |
|
// lookbehind |
|
// eslint-disable-next-line regexp/no-dupe-characters-character-class |
|
/((?:^|[^$\w\xA0-\uFFFF."'\])\s]|\b(?:return|yield))\s*)/.source + |
|
// Regex pattern: |
|
// There are 2 regex patterns here. The RegExp set notation proposal added support for nested character |
|
// classes if the `v` flag is present. Unfortunately, nested CCs are both context-free and incompatible |
|
// with the only syntax, so we have to define 2 different regex patterns. |
|
/\//.source + |
|
'(?:' + |
|
/(?:\[(?:[^\]\\\r\n]|\\.)*\]|\\.|[^/\\\[\r\n])+\/[dgimyus]{0,7}/.source + |
|
'|' + |
|
// `v` flag syntax. This supports 3 levels of nested character classes. |
|
/(?:\[(?:[^[\]\\\r\n]|\\.|\[(?:[^[\]\\\r\n]|\\.|\[(?:[^[\]\\\r\n]|\\.)*\])*\])*\]|\\.|[^/\\\[\r\n])+\/[dgimyus]{0,7}v[dgimyus]{0,7}/.source + |
|
')' + |
|
// lookahead |
|
/(?=(?:\s|\/\*(?:[^*]|\*(?!\/))*\*\/)*(?:$|[\r\n,.;:})\]]|\/\/))/.source |
|
), |
|
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]+/ |
|
} |
|
}, |
|
'string-property': { |
|
pattern: /((?:^|[,{])[ \t]*)(["'])(?:\\(?:\r\n|[\s\S])|(?!\2)[^\\\r\n])*\2(?=\s*:)/m, |
|
lookbehind: true, |
|
greedy: true, |
|
alias: 'property' |
|
} |
|
}); |
|
|
|
Prism.languages.insertBefore('javascript', 'operator', { |
|
'literal-property': { |
|
pattern: /((?:^|[,{])[ \t]*)(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*:)/m, |
|
lookbehind: true, |
|
alias: 'property' |
|
}, |
|
}); |
|
|
|
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 + '"])'; |
|
|
|
/** |
|
* Loads the given file. |
|
* |
|
* @param {string} src The URL or path of the source file to load. |
|
* @param {(result: string) => void} success |
|
* @param {(reason: string) => void} error |
|
*/ |
|
function loadFile(src, success, error) { |
|
var xhr = new XMLHttpRequest(); |
|
xhr.open('GET', src, true); |
|
xhr.onreadystatechange = function () { |
|
if (xhr.readyState == 4) { |
|
if (xhr.status < 400 && xhr.responseText) { |
|
success(xhr.responseText); |
|
} else { |
|
if (xhr.status >= 400) { |
|
error(FAILURE_MESSAGE(xhr.status, xhr.statusText)); |
|
} else { |
|
error(FAILURE_EMPTY_MESSAGE); |
|
} |
|
} |
|
} |
|
}; |
|
xhr.send(null); |
|
} |
|
|
|
/** |
|
* Parses the given range. |
|
* |
|
* This returns a range with inclusive ends. |
|
* |
|
* @param {string | null | undefined} range |
|
* @returns {[number, number | undefined] | undefined} |
|
*/ |
|
function parseRange(range) { |
|
var m = /^\s*(\d+)\s*(?:(,)\s*(?:(\d+)\s*)?)?$/.exec(range || ''); |
|
if (m) { |
|
var start = Number(m[1]); |
|
var comma = m[2]; |
|
var end = m[3]; |
|
|
|
if (!comma) { |
|
return [start, start]; |
|
} |
|
if (!end) { |
|
return [start, undefined]; |
|
} |
|
return [start, Number(end)]; |
|
} |
|
return undefined; |
|
} |
|
|
|
Prism.hooks.add('before-highlightall', function (env) { |
|
env.selector += ', ' + SELECTOR; |
|
}); |
|
|
|
Prism.hooks.add('before-sanity-check', function (env) { |
|
var pre = /** @type {HTMLPreElement} */ (env.element); |
|
if (pre.matches(SELECTOR)) { |
|
env.code = ''; // fast-path the whole thing and go to complete |
|
|
|
pre.setAttribute(STATUS_ATTR, STATUS_LOADING); // mark as loading |
|
|
|
// add code element with loading message |
|
var code = pre.appendChild(document.createElement('CODE')); |
|
code.textContent = LOADING_MESSAGE; |
|
|
|
var src = pre.getAttribute('data-src'); |
|
|
|
var language = env.language; |
|
if (language === 'none') { |
|
// the language might be 'none' because there is no language set; |
|
// in this case, we want to use the extension as the language |
|
var extension = (/\.(\w+)$/.exec(src) || [, 'none'])[1]; |
|
language = EXTENSIONS[extension] || extension; |
|
} |
|
|
|
// set language classes |
|
Prism.util.setLanguage(code, language); |
|
Prism.util.setLanguage(pre, language); |
|
|
|
// preload the language |
|
var autoloader = Prism.plugins.autoloader; |
|
if (autoloader) { |
|
autoloader.loadLanguages(language); |
|
} |
|
|
|
// load file |
|
loadFile( |
|
src, |
|
function (text) { |
|
// mark as loaded |
|
pre.setAttribute(STATUS_ATTR, STATUS_LOADED); |
|
|
|
// handle data-range |
|
var range = parseRange(pre.getAttribute('data-range')); |
|
if (range) { |
|
var lines = text.split(/\r\n?|\n/g); |
|
|
|
// the range is one-based and inclusive on both ends |
|
var start = range[0]; |
|
var end = range[1] == null ? lines.length : range[1]; |
|
|
|
if (start < 0) { start += lines.length; } |
|
start = Math.max(0, Math.min(start - 1, lines.length)); |
|
if (end < 0) { end += lines.length; } |
|
end = Math.max(0, Math.min(end, lines.length)); |
|
|
|
text = lines.slice(start, end).join('\n'); |
|
|
|
// add data-start for line numbers |
|
if (!pre.hasAttribute('data-start')) { |
|
pre.setAttribute('data-start', String(start + 1)); |
|
} |
|
} |
|
|
|
// highlight code |
|
code.textContent = text; |
|
Prism.highlightElement(code); |
|
}, |
|
function (error) { |
|
// mark as failed |
|
pre.setAttribute(STATUS_ATTR, STATUS_FAILED); |
|
|
|
code.textContent = error; |
|
} |
|
); |
|
} |
|
}); |
|
|
|
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); |
|
}; |
|
|
|
}());
|
|
|