commit 90539b71553039ec82f5fd1c7457214482dc6ba3
parent 04b244dd826f53a27368f50f74e982605d9c9487
Author: Hunter
Date: Mon, 7 Jul 2025 17:56:25 -0400
use <code> instead of <textarea>
Diffstat:
| M | index.html | | | 31 | ++++++++++++++++++++----------- |
| A | prism.css | | | 126 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | prism.js | | | 1723 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
3 files changed, 1869 insertions(+), 11 deletions(-)
diff --git a/index.html b/index.html
@@ -50,14 +50,19 @@
font-family: monospace;
font-size: 21px;
padding: 15px;
- resize: none;
overflow: auto;
background: var(--editor-bg);
color: var(--text-color);
spellcheck: false;
tab-size: 4;
- white-space: nowrap;
+ white-space: pre-wrap;
overflow-x: auto;
+ display: block;
+ }
+
+ #editor:empty:before {
+ content: attr(data-placeholder);
+ color: #666;
}
#preview {
@@ -97,7 +102,7 @@
</head>
<body>
<div class="editor-pane">
- <textarea id="editor" placeholder="Type your HTML, CSS, and JavaScript here..." spellcheck="false"></textarea>
+ <code id="editor" contenteditable="true" spellcheck="false" data-placeholder="Type your HTML, CSS, and JavaScript here..."></code>
</div>
<div class="preview-pane">
@@ -111,7 +116,7 @@
const storageKey = 'html-lab-content';
function updatePreview() {
- const code = editor.value;
+ const code = editor.textContent;
const blob = new Blob([code], { type: 'text/html' });
const url = URL.createObjectURL(blob);
preview.src = url;
@@ -122,7 +127,7 @@
function saveToStorage() {
try {
- localStorage.setItem(storageKey, editor.value);
+ localStorage.setItem(storageKey, editor.textContent);
} catch (e) {
// Handle localStorage errors silently
console.warn('Could not save to localStorage:', e);
@@ -133,7 +138,7 @@
try {
const saved = localStorage.getItem(storageKey);
if (saved !== null) {
- editor.value = saved;
+ editor.textContent = saved;
return true;
}
} catch (e) {
@@ -149,14 +154,18 @@
if (e.key === 'Tab') {
e.preventDefault();
- const start = this.selectionStart;
- const end = this.selectionEnd;
+ const selection = window.getSelection();
+ const range = selection.getRangeAt(0);
// Insert tab character at cursor position
- this.value = this.value.substring(0, start) + '\t' + this.value.substring(end);
+ const tabNode = document.createTextNode('\t');
+ range.insertNode(tabNode);
// Move cursor to after the inserted tab
- this.selectionStart = this.selectionEnd = start + 1;
+ range.setStartAfter(tabNode);
+ range.setEndAfter(tabNode);
+ selection.removeAllRanges();
+ selection.addRange(range);
// Trigger input event to update preview
this.dispatchEvent(new Event('input'));
@@ -181,7 +190,7 @@
});
function saveFile() {
- const code = editor.value;
+ const code = editor.textContent;
const blob = new Blob([code], { type: 'text/html' });
const url = URL.createObjectURL(blob);
diff --git a/prism.css b/prism.css
@@ -0,0 +1,126 @@
+/* PrismJS 1.30.0
+https://prismjs.com/download#themes=prism-okaidia&languages=markup+css+clike+javascript */
+/**
+ * okaidia theme for JavaScript, CSS and HTML
+ * Loosely based on Monokai textmate theme by http://www.monokai.nl/
+ * @author ocodia
+ */
+
+code[class*="language-"],
+pre[class*="language-"] {
+ color: #f8f8f2;
+ background: none;
+ text-shadow: 0 1px rgba(0, 0, 0, 0.3);
+ font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
+ font-size: 1em;
+ text-align: left;
+ white-space: pre;
+ word-spacing: normal;
+ word-break: normal;
+ word-wrap: normal;
+ line-height: 1.5;
+
+ -moz-tab-size: 4;
+ -o-tab-size: 4;
+ tab-size: 4;
+
+ -webkit-hyphens: none;
+ -moz-hyphens: none;
+ -ms-hyphens: none;
+ hyphens: none;
+}
+
+/* Code blocks */
+pre[class*="language-"] {
+ padding: 1em;
+ margin: .5em 0;
+ overflow: auto;
+ border-radius: 0.3em;
+}
+
+:not(pre) > code[class*="language-"],
+pre[class*="language-"] {
+ background: #272822;
+}
+
+/* Inline code */
+:not(pre) > code[class*="language-"] {
+ padding: .1em;
+ border-radius: .3em;
+ white-space: normal;
+}
+
+.token.comment,
+.token.prolog,
+.token.doctype,
+.token.cdata {
+ color: #8292a2;
+}
+
+.token.punctuation {
+ color: #f8f8f2;
+}
+
+.token.namespace {
+ opacity: .7;
+}
+
+.token.property,
+.token.tag,
+.token.constant,
+.token.symbol,
+.token.deleted {
+ color: #f92672;
+}
+
+.token.boolean,
+.token.number {
+ color: #ae81ff;
+}
+
+.token.selector,
+.token.attr-name,
+.token.string,
+.token.char,
+.token.builtin,
+.token.inserted {
+ color: #a6e22e;
+}
+
+.token.operator,
+.token.entity,
+.token.url,
+.language-css .token.string,
+.style .token.string,
+.token.variable {
+ color: #f8f8f2;
+}
+
+.token.atrule,
+.token.attr-value,
+.token.function,
+.token.class-name {
+ color: #e6db74;
+}
+
+.token.keyword {
+ color: #66d9ef;
+}
+
+.token.regex,
+.token.important {
+ color: #fd971f;
+}
+
+.token.important,
+.token.bold {
+ font-weight: bold;
+}
+.token.italic {
+ font-style: italic;
+}
+
+.token.entity {
+ cursor: help;
+}
+
diff --git a/prism.js b/prism.js
@@ -0,0 +1,1723 @@
+/* PrismJS 1.30.0
+https://prismjs.com/download#themes=prism-okaidia&languages=markup+css+clike+javascript */
+/// <reference lib="WebWorker"/>
+
+var _self = (typeof window !== 'undefined')
+ ? window // if in browser
+ : (
+ (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope)
+ ? self // if in worker
+ : {} // if in node js
+ );
+
+/**
+ * Prism: Lightweight, robust, elegant syntax highlighting
+ *
+ * @license MIT <https://opensource.org/licenses/MIT>
+ * @author Lea Verou <https://lea.verou.me>
+ * @namespace
+ * @public
+ */
+var Prism = (function (_self) {
+
+ // Private helper vars
+ var lang = /(?:^|\s)lang(?:uage)?-([\w-]+)(?=\s|$)/i;
+ var uniqueId = 0;
+
+ // The grammar object for plaintext
+ var plainTextGrammar = {};
+
+
+ var _ = {
+ /**
+ * By default, Prism will attempt to highlight all code elements (by calling {@link Prism.highlightAll}) on the
+ * current page after the page finished loading. This might be a problem if e.g. you wanted to asynchronously load
+ * additional languages or plugins yourself.
+ *
+ * By setting this value to `true`, Prism will not automatically highlight all code elements on the page.
+ *
+ * You obviously have to change this value before the automatic highlighting started. To do this, you can add an
+ * empty Prism object into the global scope before loading the Prism script like this:
+ *
+ * ```js
+ * window.Prism = window.Prism || {};
+ * Prism.manual = true;
+ * // add a new <script> to load Prism's script
+ * ```
+ *
+ * @default false
+ * @type {boolean}
+ * @memberof Prism
+ * @public
+ */
+ manual: _self.Prism && _self.Prism.manual,
+ /**
+ * By default, if Prism is in a web worker, it assumes that it is in a worker it created itself, so it uses
+ * `addEventListener` to communicate with its parent instance. However, if you're using Prism manually in your
+ * own worker, you don't want it to do this.
+ *
+ * By setting this value to `true`, Prism will not add its own listeners to the worker.
+ *
+ * You obviously have to change this value before Prism executes. To do this, you can add an
+ * empty Prism object into the global scope before loading the Prism script like this:
+ *
+ * ```js
+ * window.Prism = window.Prism || {};
+ * Prism.disableWorkerMessageHandler = true;
+ * // Load Prism's script
+ * ```
+ *
+ * @default false
+ * @type {boolean}
+ * @memberof Prism
+ * @public
+ */
+ disableWorkerMessageHandler: _self.Prism && _self.Prism.disableWorkerMessageHandler,
+
+ /**
+ * A namespace for utility methods.
+ *
+ * All function in this namespace that are not explicitly marked as _public_ are for __internal use only__ and may
+ * change or disappear at any time.
+ *
+ * @namespace
+ * @memberof Prism
+ */
+ util: {
+ encode: function encode(tokens) {
+ if (tokens instanceof Token) {
+ return new Token(tokens.type, encode(tokens.content), tokens.alias);
+ } else if (Array.isArray(tokens)) {
+ return tokens.map(encode);
+ } else {
+ return tokens.replace(/&/g, '&').replace(/</g, '<').replace(/\u00a0/g, ' ');
+ }
+ },
+
+ /**
+ * Returns the name of the type of the given value.
+ *
+ * @param {any} o
+ * @returns {string}
+ * @example
+ * type(null) === 'Null'
+ * type(undefined) === 'Undefined'
+ * type(123) === 'Number'
+ * type('foo') === 'String'
+ * type(true) === 'Boolean'
+ * type([1, 2]) === 'Array'
+ * type({}) === 'Object'
+ * type(String) === 'Function'
+ * type(/abc+/) === 'RegExp'
+ */
+ type: function (o) {
+ return Object.prototype.toString.call(o).slice(8, -1);
+ },
+
+ /**
+ * Returns a unique number for the given object. Later calls will still return the same number.
+ *
+ * @param {Object} obj
+ * @returns {number}
+ */
+ objId: function (obj) {
+ if (!obj['__id']) {
+ Object.defineProperty(obj, '__id', { value: ++uniqueId });
+ }
+ return obj['__id'];
+ },
+
+ /**
+ * Creates a deep clone of the given object.
+ *
+ * The main intended use of this function is to clone language definitions.
+ *
+ * @param {T} o
+ * @param {Record<number, any>} [visited]
+ * @returns {T}
+ * @template T
+ */
+ clone: function deepClone(o, visited) {
+ visited = visited || {};
+
+ var clone; var id;
+ switch (_.util.type(o)) {
+ case 'Object':
+ id = _.util.objId(o);
+ if (visited[id]) {
+ return visited[id];
+ }
+ clone = /** @type {Record<string, any>} */ ({});
+ visited[id] = clone;
+
+ for (var key in o) {
+ if (o.hasOwnProperty(key)) {
+ clone[key] = deepClone(o[key], visited);
+ }
+ }
+
+ return /** @type {any} */ (clone);
+
+ case 'Array':
+ id = _.util.objId(o);
+ if (visited[id]) {
+ return visited[id];
+ }
+ clone = [];
+ visited[id] = clone;
+
+ (/** @type {Array} */(/** @type {any} */(o))).forEach(function (v, i) {
+ clone[i] = deepClone(v, visited);
+ });
+
+ return /** @type {any} */ (clone);
+
+ default:
+ return o;
+ }
+ },
+
+ /**
+ * Returns the Prism language of the given element set by a `language-xxxx` or `lang-xxxx` class.
+ *
+ * If no language is set for the element or the element is `null` or `undefined`, `none` will be returned.
+ *
+ * @param {Element} element
+ * @returns {string}
+ */
+ getLanguage: function (element) {
+ while (element) {
+ var m = lang.exec(element.className);
+ if (m) {
+ return m[1].toLowerCase();
+ }
+ element = element.parentElement;
+ }
+ return 'none';
+ },
+
+ /**
+ * Sets the Prism `language-xxxx` class of the given element.
+ *
+ * @param {Element} element
+ * @param {string} language
+ * @returns {void}
+ */
+ setLanguage: function (element, language) {
+ // remove all `language-xxxx` classes
+ // (this might leave behind a leading space)
+ element.className = element.className.replace(RegExp(lang, 'gi'), '');
+
+ // add the new `language-xxxx` class
+ // (using `classList` will automatically clean up spaces for us)
+ element.classList.add('language-' + language);
+ },
+
+ /**
+ * 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 (document.currentScript && document.currentScript.tagName === 'SCRIPT' && 1 < 2 /* hack to trip TS' flow analysis */) {
+ return /** @type {any} */ (document.currentScript);
+ }
+
+ // IE11 workaround
+ // we'll get the src of the current script by parsing IE11's error stack trace
+ // this will not work for inline scripts
+
+ try {
+ throw new Error();
+ } catch (err) {
+ // Get file src url from stack. Specifically works with the format of stack traces in IE.
+ // A stack will look like this:
+ //
+ // Error
+ // at _.util.currentScript (http://localhost/components/prism-core.js:119:5)
+ // at Global code (http://localhost/components/prism-core.js:606:1)
+
+ var src = (/at [^(\r\n]*\((.*):[^:]+:[^:]+\)$/i.exec(err.stack) || [])[1];
+ if (src) {
+ var scripts = document.getElementsByTagName('script');
+ for (var i in scripts) {
+ if (scripts[i].src == src) {
+ return scripts[i];
+ }
+ }
+ }
+ return null;
+ }
+ },
+
+ /**
+ * Returns whether a given class is active for `element`.
+ *
+ * The class can be activated if `element` or one of its ancestors has the given class and it can be deactivated
+ * if `element` or one of its ancestors has the negated version of the given class. The _negated version_ of the
+ * given class is just the given class with a `no-` prefix.
+ *
+ * Whether the class is active is determined by the closest ancestor of `element` (where `element` itself is
+ * closest ancestor) that has the given class or the negated version of it. If neither `element` nor any of its
+ * ancestors have the given class or the negated version of it, then the default activation will be returned.
+ *
+ * In the paradoxical situation where the closest ancestor contains __both__ the given class and the negated
+ * version of it, the class is considered active.
+ *
+ * @param {Element} element
+ * @param {string} className
+ * @param {boolean} [defaultActivation=false]
+ * @returns {boolean}
+ */
+ isActive: function (element, className, defaultActivation) {
+ var no = 'no-' + className;
+
+ while (element) {
+ var classList = element.classList;
+ if (classList.contains(className)) {
+ return true;
+ }
+ if (classList.contains(no)) {
+ return false;
+ }
+ element = element.parentElement;
+ }
+ return !!defaultActivation;
+ }
+ },
+
+ /**
+ * This namespace contains all currently loaded languages and the some helper functions to create and modify languages.
+ *
+ * @namespace
+ * @memberof Prism
+ * @public
+ */
+ languages: {
+ /**
+ * The grammar for plain, unformatted text.
+ */
+ plain: plainTextGrammar,
+ plaintext: plainTextGrammar,
+ text: plainTextGrammar,
+ txt: plainTextGrammar,
+
+ /**
+ * Creates a deep copy of the language with the given id and appends the given tokens.
+ *
+ * If a token in `redef` also appears in the copied language, then the existing token in the copied language
+ * will be overwritten at its original position.
+ *
+ * ## Best practices
+ *
+ * Since the position of overwriting tokens (token in `redef` that overwrite tokens in the copied language)
+ * doesn't matter, they can technically be in any order. However, this can be confusing to others that trying to
+ * understand the language definition because, normally, the order of tokens matters in Prism grammars.
+ *
+ * Therefore, it is encouraged to order overwriting tokens according to the positions of the overwritten tokens.
+ * Furthermore, all non-overwriting tokens should be placed after the overwriting ones.
+ *
+ * @param {string} id The id of the language to extend. This has to be a key in `Prism.languages`.
+ * @param {Grammar} redef The new tokens to append.
+ * @returns {Grammar} The new language created.
+ * @public
+ * @example
+ * Prism.languages['css-with-colors'] = Prism.languages.extend('css', {
+ * // Prism.languages.css already has a 'comment' token, so this token will overwrite CSS' 'comment' token
+ * // at its original position
+ * 'comment': { ... },
+ * // CSS doesn't have a 'color' token, so this token will be appended
+ * 'color': /\b(?:red|green|blue)\b/
+ * });
+ */
+ extend: function (id, redef) {
+ var lang = _.util.clone(_.languages[id]);
+
+ for (var key in redef) {
+ lang[key] = redef[key];
+ }
+
+ return lang;
+ },
+
+ /**
+ * Inserts tokens _before_ another token in a language definition or any other grammar.
+ *
+ * ## Usage
+ *
+ * This helper method makes it easy to modify existing languages. For example, the CSS language definition
+ * not only defines CSS highlighting for CSS documents, but also needs to define highlighting for CSS embedded
+ * in HTML through `<style>` elements. To do this, it needs to modify `Prism.languages.markup` and add the
+ * appropriate tokens. However, `Prism.languages.markup` is a regular JavaScript object literal, so if you do
+ * this:
+ *
+ * ```js
+ * Prism.languages.markup.style = {
+ * // token
+ * };
+ * ```
+ *
+ * then the `style` token will be added (and processed) at the end. `insertBefore` allows you to insert tokens
+ * before existing tokens. For the CSS example above, you would use it like this:
+ *
+ * ```js
+ * Prism.languages.insertBefore('markup', 'cdata', {
+ * 'style': {
+ * // token
+ * }
+ * });
+ * ```
+ *
+ * ## Special cases
+ *
+ * If the grammars of `inside` and `insert` have tokens with the same name, the tokens in `inside`'s grammar
+ * will be ignored.
+ *
+ * This behavior can be used to insert tokens after `before`:
+ *
+ * ```js
+ * Prism.languages.insertBefore('markup', 'comment', {
+ * 'comment': Prism.languages.markup.comment,
+ * // tokens after 'comment'
+ * });
+ * ```
+ *
+ * ## Limitations
+ *
+ * The main problem `insertBefore` has to solve is iteration order. Since ES2015, the iteration order for object
+ * properties is guaranteed to be the insertion order (except for integer keys) but some browsers behave
+ * differently when keys are deleted and re-inserted. So `insertBefore` can't be implemented by temporarily
+ * deleting properties which is necessary to insert at arbitrary positions.
+ *
+ * To solve this problem, `insertBefore` doesn't actually insert the given tokens into the target object.
+ * Instead, it will create a new object and replace all references to the target object with the new one. This
+ * can be done without temporarily deleting properties, so the iteration order is well-defined.
+ *
+ * However, only references that can be reached from `Prism.languages` or `insert` will be replaced. I.e. if
+ * you hold the target object in a variable, then the value of the variable will not change.
+ *
+ * ```js
+ * var oldMarkup = Prism.languages.markup;
+ * var newMarkup = Prism.languages.insertBefore('markup', 'comment', { ... });
+ *
+ * assert(oldMarkup !== Prism.languages.markup);
+ * assert(newMarkup === Prism.languages.markup);
+ * ```
+ *
+ * @param {string} inside The property of `root` (e.g. a language id in `Prism.languages`) that contains the
+ * object to be modified.
+ * @param {string} before The key to insert before.
+ * @param {Grammar} insert An object containing the key-value pairs to be inserted.
+ * @param {Object<string, any>} [root] The object containing `inside`, i.e. the object that contains the
+ * object to be modified.
+ *
+ * Defaults to `Prism.languages`.
+ * @returns {Grammar} The new grammar object.
+ * @public
+ */
+ insertBefore: function (inside, before, insert, root) {
+ root = root || /** @type {any} */ (_.languages);
+ var grammar = root[inside];
+ /** @type {Grammar} */
+ var ret = {};
+
+ for (var token in grammar) {
+ if (grammar.hasOwnProperty(token)) {
+
+ if (token == before) {
+ for (var newToken in insert) {
+ if (insert.hasOwnProperty(newToken)) {
+ ret[newToken] = insert[newToken];
+ }
+ }
+ }
+
+ // Do not insert token which also occur in insert. See #1525
+ if (!insert.hasOwnProperty(token)) {
+ ret[token] = grammar[token];
+ }
+ }
+ }
+
+ var old = root[inside];
+ root[inside] = ret;
+
+ // Update references in other language definitions
+ _.languages.DFS(_.languages, function (key, value) {
+ if (value === old && key != inside) {
+ this[key] = ret;
+ }
+ });
+
+ return ret;
+ },
+
+ // Traverse a language definition with Depth First Search
+ DFS: function DFS(o, callback, type, visited) {
+ visited = visited || {};
+
+ var objId = _.util.objId;
+
+ for (var i in o) {
+ if (o.hasOwnProperty(i)) {
+ callback.call(o, i, o[i], type || i);
+
+ var property = o[i];
+ var propertyType = _.util.type(property);
+
+ if (propertyType === 'Object' && !visited[objId(property)]) {
+ visited[objId(property)] = true;
+ DFS(property, callback, null, visited);
+ } else if (propertyType === 'Array' && !visited[objId(property)]) {
+ visited[objId(property)] = true;
+ DFS(property, callback, i, visited);
+ }
+ }
+ }
+ }
+ },
+
+ plugins: {},
+
+ /**
+ * This is the most high-level function in Prism’s API.
+ * It fetches all the elements that have a `.language-xxxx` class and then calls {@link Prism.highlightElement} on
+ * each one of them.
+ *
+ * This is equivalent to `Prism.highlightAllUnder(document, async, callback)`.
+ *
+ * @param {boolean} [async=false] Same as in {@link Prism.highlightAllUnder}.
+ * @param {HighlightCallback} [callback] Same as in {@link Prism.highlightAllUnder}.
+ * @memberof Prism
+ * @public
+ */
+ highlightAll: function (async, callback) {
+ _.highlightAllUnder(document, async, callback);
+ },
+
+ /**
+ * Fetches all the descendants of `container` that have a `.language-xxxx` class and then calls
+ * {@link Prism.highlightElement} on each one of them.
+ *
+ * The following hooks will be run:
+ * 1. `before-highlightall`
+ * 2. `before-all-elements-highlight`
+ * 3. All hooks of {@link Prism.highlightElement} for each element.
+ *
+ * @param {ParentNode} container The root element, whose descendants that have a `.language-xxxx` class will be highlighted.
+ * @param {boolean} [async=false] Whether each element is to be highlighted asynchronously using Web Workers.
+ * @param {HighlightCallback} [callback] An optional callback to be invoked on each element after its highlighting is done.
+ * @memberof Prism
+ * @public
+ */
+ highlightAllUnder: function (container, async, callback) {
+ var env = {
+ callback: callback,
+ container: container,
+ selector: 'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'
+ };
+
+ _.hooks.run('before-highlightall', env);
+
+ env.elements = Array.prototype.slice.apply(env.container.querySelectorAll(env.selector));
+
+ _.hooks.run('before-all-elements-highlight', env);
+
+ for (var i = 0, element; (element = env.elements[i++]);) {
+ _.highlightElement(element, async === true, env.callback);
+ }
+ },
+
+ /**
+ * Highlights the code inside a single element.
+ *
+ * The following hooks will be run:
+ * 1. `before-sanity-check`
+ * 2. `before-highlight`
+ * 3. All hooks of {@link Prism.highlight}. These hooks will be run by an asynchronous worker if `async` is `true`.
+ * 4. `before-insert`
+ * 5. `after-highlight`
+ * 6. `complete`
+ *
+ * Some the above hooks will be skipped if the element doesn't contain any text or there is no grammar loaded for
+ * the element's language.
+ *
+ * @param {Element} element The element containing the code.
+ * It must have a class of `language-xxxx` to be processed, where `xxxx` is a valid language identifier.
+ * @param {boolean} [async=false] Whether the element is to be highlighted asynchronously using Web Workers
+ * to improve performance and avoid blocking the UI when highlighting very large chunks of code. This option is
+ * [disabled by default](https://prismjs.com/faq.html#why-is-asynchronous-highlighting-disabled-by-default).
+ *
+ * Note: All language definitions required to highlight the code must be included in the main `prism.js` file for
+ * asynchronous highlighting to work. You can build your own bundle on the
+ * [Download page](https://prismjs.com/download.html).
+ * @param {HighlightCallback} [callback] An optional callback to be invoked after the highlighting is done.
+ * Mostly useful when `async` is `true`, since in that case, the highlighting is done asynchronously.
+ * @memberof Prism
+ * @public
+ */
+ highlightElement: function (element, async, callback) {
+ // Find language
+ var language = _.util.getLanguage(element);
+ var grammar = _.languages[language];
+
+ // Set language on the element, if not present
+ _.util.setLanguage(element, language);
+
+ // Set language on the parent, for styling
+ var parent = element.parentElement;
+ if (parent && parent.nodeName.toLowerCase() === 'pre') {
+ _.util.setLanguage(parent, language);
+ }
+
+ var code = element.textContent;
+
+ var env = {
+ element: element,
+ language: language,
+ grammar: grammar,
+ code: code
+ };
+
+ function insertHighlightedCode(highlightedCode) {
+ env.highlightedCode = highlightedCode;
+
+ _.hooks.run('before-insert', env);
+
+ env.element.innerHTML = env.highlightedCode;
+
+ _.hooks.run('after-highlight', env);
+ _.hooks.run('complete', env);
+ callback && callback.call(env.element);
+ }
+
+ _.hooks.run('before-sanity-check', env);
+
+ // plugins may change/add the parent/element
+ parent = env.element.parentElement;
+ if (parent && parent.nodeName.toLowerCase() === 'pre' && !parent.hasAttribute('tabindex')) {
+ parent.setAttribute('tabindex', '0');
+ }
+
+ if (!env.code) {
+ _.hooks.run('complete', env);
+ callback && callback.call(env.element);
+ return;
+ }
+
+ _.hooks.run('before-highlight', env);
+
+ if (!env.grammar) {
+ insertHighlightedCode(_.util.encode(env.code));
+ return;
+ }
+
+ if (async && _self.Worker) {
+ var worker = new Worker(_.filename);
+
+ worker.onmessage = function (evt) {
+ insertHighlightedCode(evt.data);
+ };
+
+ worker.postMessage(JSON.stringify({
+ language: env.language,
+ code: env.code,
+ immediateClose: true
+ }));
+ } else {
+ insertHighlightedCode(_.highlight(env.code, env.grammar, env.language));
+ }
+ },
+
+ /**
+ * Low-level function, only use if you know what you’re doing. It accepts a string of text as input
+ * and the language definitions to use, and returns a string with the HTML produced.
+ *
+ * The following hooks will be run:
+ * 1. `before-tokenize`
+ * 2. `after-tokenize`
+ * 3. `wrap`: On each {@link Token}.
+ *
+ * @param {string} text A string with the code to be highlighted.
+ * @param {Grammar} grammar An object containing the tokens to use.
+ *
+ * Usually a language definition like `Prism.languages.markup`.
+ * @param {string} language The name of the language definition passed to `grammar`.
+ * @returns {string} The highlighted HTML.
+ * @memberof Prism
+ * @public
+ * @example
+ * Prism.highlight('var foo = true;', Prism.languages.javascript, 'javascript');
+ */
+ highlight: function (text, grammar, language) {
+ var env = {
+ code: text,
+ grammar: grammar,
+ language: language
+ };
+ _.hooks.run('before-tokenize', env);
+ 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
+ */
+;
+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;
+
+(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));
+
+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': /[{}[\];(),.:]/
+};
+
+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;
+