diff options
author | Olivier Hallot <olivier.hallot@libreoffice.org> | 2022-04-05 08:18:08 -0300 |
---|---|---|
committer | Olivier Hallot <olivier.hallot@libreoffice.org> | 2022-04-05 14:31:19 +0200 |
commit | 58d1badf99624f469e9b16a4b00d11ec992ecc1c (patch) | |
tree | d491dcb0c4b58b2836fff1a4ef4958e297554a1e | |
parent | 8dfebaba1d7e2874af4001ce15d807b436891925 (diff) |
Update prism.js/css to v 1.27
Upload un-minified version
Change-Id: I4a74a06f4639acfcc6b1bbf08f223f69dba1f8e8
Reviewed-on: https://gerrit.libreoffice.org/c/help/+/132570
Tested-by: Jenkins
Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
-rw-r--r-- | help3xsl/README.prism.js.txt | 2 | ||||
-rw-r--r-- | help3xsl/prism.css | 265 | ||||
-rw-r--r-- | help3xsl/prism.js | 2079 |
3 files changed, 2331 insertions, 15 deletions
diff --git a/help3xsl/README.prism.js.txt b/help3xsl/README.prism.js.txt index d23a5b6581..2f3f004b6b 100644 --- a/help3xsl/README.prism.js.txt +++ b/help3xsl/README.prism.js.txt @@ -1,6 +1,6 @@ Latest download version -PrismJS 1.20.0 +PrismJS 1.27.0 Using prism.js for Basic code highlight diff --git a/help3xsl/prism.css b/help3xsl/prism.css index e10549dfe6..f974d0c87c 100644 --- a/help3xsl/prism.css +++ b/help3xsl/prism.css @@ -1,4 +1,263 @@ /* PrismJS 1.27.0 -https://prismjs.com/download.html#themes=prism-coy&languages=markup+css+clike+javascript+basic+python+visual-basic&plugins=line-numbers+normalize-whitespace */ -code[class*=language-],pre[class*=language-]{color:#000;background:0 0;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}pre[class*=language-]{position:relative;margin:.5em 0;overflow:visible;padding:1px}pre[class*=language-]>code{position:relative;z-index:1;border-left:10px solid #358ccb;box-shadow:-1px 0 0 0 #358ccb,0 0 0 1px #dfdfdf;background-color:#fdfdfd;background-image:linear-gradient(transparent 50%,rgba(69,142,209,.04) 50%);background-size:3em 3em;background-origin:content-box;background-attachment:local}code[class*=language-]{max-height:inherit;height:inherit;padding:0 1em;display:block;overflow:auto}:not(pre)>code[class*=language-],pre[class*=language-]{background-color:#fdfdfd;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;margin-bottom:1em}:not(pre)>code[class*=language-]{position:relative;padding:.2em;border-radius:.3em;color:#c92c2c;border:1px solid rgba(0,0,0,.1);display:inline;white-space:normal}pre[class*=language-]:after,pre[class*=language-]:before{content:'';display:block;position:absolute;bottom:.75em;left:.18em;width:40%;height:20%;max-height:13em;box-shadow:0 13px 8px #979797;-webkit-transform:rotate(-2deg);-moz-transform:rotate(-2deg);-ms-transform:rotate(-2deg);-o-transform:rotate(-2deg);transform:rotate(-2deg)}pre[class*=language-]:after{right:.75em;left:auto;-webkit-transform:rotate(2deg);-moz-transform:rotate(2deg);-ms-transform:rotate(2deg);-o-transform:rotate(2deg);transform:rotate(2deg)}.token.block-comment,.token.cdata,.token.comment,.token.doctype,.token.prolog{color:#7d8b99}.token.punctuation{color:#5f6364}.token.boolean,.token.constant,.token.deleted,.token.function-name,.token.number,.token.property,.token.symbol,.token.tag{color:#c92c2c}.token.attr-name,.token.builtin,.token.char,.token.function,.token.inserted,.token.selector,.token.string{color:#2f9c0a}.token.entity,.token.operator,.token.url,.token.variable{color:#a67f59;background:rgba(255,255,255,.5)}.token.atrule,.token.attr-value,.token.class-name,.token.keyword{color:#1990b8}.token.important,.token.regex{color:#e90}.language-css .token.string,.style .token.string{color:#a67f59;background:rgba(255,255,255,.5)}.token.important{font-weight:400}.token.bold{font-weight:700}.token.italic{font-style:italic}.token.entity{cursor:help}.token.namespace{opacity:.7}@media screen and (max-width:767px){pre[class*=language-]:after,pre[class*=language-]:before{bottom:14px;box-shadow:none}}pre[class*=language-].line-numbers.line-numbers{padding-left:0}pre[class*=language-].line-numbers.line-numbers code{padding-left:3.8em}pre[class*=language-].line-numbers.line-numbers .line-numbers-rows{left:0}pre[class*=language-][data-line]{padding-top:0;padding-bottom:0;padding-left:0}pre[data-line] code{position:relative;padding-left:4em}pre .line-highlight{margin-top:0} -pre[class*=language-].line-numbers{position:relative;padding-left:3.8em;counter-reset:linenumber}pre[class*=language-].line-numbers>code{position:relative;white-space:inherit}.line-numbers .line-numbers-rows{position:absolute;pointer-events:none;top:0;font-size:100%;left:-3.8em;width:3em;letter-spacing:-1px;border-right:1px solid #999;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.line-numbers-rows>span{display:block;counter-increment:linenumber}.line-numbers-rows>span:before{content:counter(linenumber);color:#999;display:block;padding-right:.8em;text-align:right} +https://prismjs.com/download.html#themes=prism-coy&languages=markup+css+clike+javascript+python+visual-basic&plugins=line-numbers */ +/** + * prism.js Coy theme for JavaScript, CoffeeScript, CSS and HTML + * Based on https://github.com/tshedor/workshop-wp-theme (Example: http://workshop.kansan.com/category/sessions/basics or http://workshop.timshedor.com/category/sessions/basics); + * @author Tim Shedor + */ + +code[class*="language-"], +pre[class*="language-"] { + color: black; + background: none; + 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-"] { + position: relative; + margin: .5em 0; + overflow: visible; + padding: 1px; +} + +pre[class*="language-"] > code { + position: relative; + z-index: 1; + border-left: 10px solid #358ccb; + box-shadow: -1px 0px 0px 0px #358ccb, 0px 0px 0px 1px #dfdfdf; + background-color: #fdfdfd; + background-image: linear-gradient(transparent 50%, rgba(69, 142, 209, 0.04) 50%); + background-size: 3em 3em; + background-origin: content-box; + background-attachment: local; +} + +code[class*="language-"] { + max-height: inherit; + height: inherit; + padding: 0 1em; + display: block; + overflow: auto; +} + +/* Margin bottom to accommodate shadow */ +:not(pre) > code[class*="language-"], +pre[class*="language-"] { + background-color: #fdfdfd; + -webkit-box-sizing: border-box; + -moz-box-sizing: border-box; + box-sizing: border-box; + margin-bottom: 1em; +} + +/* Inline code */ +:not(pre) > code[class*="language-"] { + position: relative; + padding: .2em; + border-radius: 0.3em; + color: #c92c2c; + border: 1px solid rgba(0, 0, 0, 0.1); + display: inline; + white-space: normal; +} + +pre[class*="language-"]:before, +pre[class*="language-"]:after { + content: ''; + display: block; + position: absolute; + bottom: 0.75em; + left: 0.18em; + width: 40%; + height: 20%; + max-height: 13em; + box-shadow: 0px 13px 8px #979797; + -webkit-transform: rotate(-2deg); + -moz-transform: rotate(-2deg); + -ms-transform: rotate(-2deg); + -o-transform: rotate(-2deg); + transform: rotate(-2deg); +} + +pre[class*="language-"]:after { + right: 0.75em; + left: auto; + -webkit-transform: rotate(2deg); + -moz-transform: rotate(2deg); + -ms-transform: rotate(2deg); + -o-transform: rotate(2deg); + transform: rotate(2deg); +} + +.token.comment, +.token.block-comment, +.token.prolog, +.token.doctype, +.token.cdata { + color: #7D8B99; +} + +.token.punctuation { + color: #5F6364; +} + +.token.property, +.token.tag, +.token.boolean, +.token.number, +.token.function-name, +.token.constant, +.token.symbol, +.token.deleted { + color: #c92c2c; +} + +.token.selector, +.token.attr-name, +.token.string, +.token.char, +.token.function, +.token.builtin, +.token.inserted { + color: #2f9c0a; +} + +.token.operator, +.token.entity, +.token.url, +.token.variable { + color: #a67f59; + background: rgba(255, 255, 255, 0.5); +} + +.token.atrule, +.token.attr-value, +.token.keyword, +.token.class-name { + color: #1990b8; +} + +.token.regex, +.token.important { + color: #e90; +} + +.language-css .token.string, +.style .token.string { + color: #a67f59; + background: rgba(255, 255, 255, 0.5); +} + +.token.important { + font-weight: normal; +} + +.token.bold { + font-weight: bold; +} +.token.italic { + font-style: italic; +} + +.token.entity { + cursor: help; +} + +.token.namespace { + opacity: .7; +} + +@media screen and (max-width: 767px) { + pre[class*="language-"]:before, + pre[class*="language-"]:after { + bottom: 14px; + box-shadow: none; + } + +} + +/* Plugin styles: Line Numbers */ +pre[class*="language-"].line-numbers.line-numbers { + padding-left: 0; +} + +pre[class*="language-"].line-numbers.line-numbers code { + padding-left: 3.8em; +} + +pre[class*="language-"].line-numbers.line-numbers .line-numbers-rows { + left: 0; +} + +/* Plugin styles: Line Highlight */ +pre[class*="language-"][data-line] { + padding-top: 0; + padding-bottom: 0; + padding-left: 0; +} +pre[data-line] code { + position: relative; + padding-left: 4em; +} +pre .line-highlight { + margin-top: 0; +} + +pre[class*="language-"].line-numbers { + position: relative; + padding-left: 3.8em; + counter-reset: linenumber; +} + +pre[class*="language-"].line-numbers > code { + position: relative; + white-space: inherit; +} + +.line-numbers .line-numbers-rows { + position: absolute; + pointer-events: none; + top: 0; + font-size: 100%; + left: -3.8em; + width: 3em; /* works for line-numbers below 1000 lines */ + letter-spacing: -1px; + border-right: 1px solid #999; + + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; + +} + + .line-numbers-rows > span { + display: block; + counter-increment: linenumber; + } + + .line-numbers-rows > span:before { + content: counter(linenumber); + color: #999; + display: block; + padding-right: 0.8em; + text-align: right; + } + diff --git a/help3xsl/prism.js b/help3xsl/prism.js index 7d2faf61f1..546388f444 100644 --- a/help3xsl/prism.js +++ b/help3xsl/prism.js @@ -1,12 +1,2069 @@ /* PrismJS 1.27.0 -https://prismjs.com/download.html#themes=prism-coy&languages=markup+css+clike+javascript+basic+python+visual-basic&plugins=line-numbers+normalize-whitespace */ -var _self="undefined"!=typeof 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i=Object.assign||function(e,n){for(var t in n)n.hasOwnProperty(t)&&(e[t]=n[t]);return e};e.prototype={setDefaults:function(e){this.defaults=i(this.defaults,e)},normalize:function(e,n){for(var t in n=i(this.defaults,n)){var r=t.replace(/-(\w)/g,function(e,n){return n.toUpperCase()});"normalize"!==t&&"setDefaults"!==r&&n[t]&&this[r]&&(e=this[r].call(this,e,n[t]))}return e},leftTrim:function(e){return e.replace(/^\s+/,"")},rightTrim:function(e){return e.replace(/\s+$/,"")},tabsToSpaces:function(e,n){return n=0|n||4,e.replace(/\t/g,new Array(++n).join(" "))},spacesToTabs:function(e,n){return n=0|n||4,e.replace(RegExp(" {"+n+"}","g"),"\t")},removeTrailing:function(e){return e.replace(/\s*?$/gm,"")},removeInitialLineFeed:function(e){return e.replace(/^(?:\r?\n|\r)/,"")},removeIndent:function(e){var n=e.match(/^[^\S\n\r]*(?=\S)/gm);return n&&n[0].length?(n.sort(function(e,n){return e.length-n.length}),n[0].length?e.replace(RegExp("^"+n[0],"gm"),""):e):e},indent:function(e,n){return e.replace(/^[^\S\n\r]*(?=\S)/gm,new Array(++n).join("\t")+"$&")},breakLines:function(e,n){n=!0===n?80:0|n||80;for(var t=e.split("\n"),r=0;r<t.length;++r)if(!(s(t[r])<=n)){for(var i=t[r].split(/(\s+)/g),o=0,a=0;a<i.length;++a){var l=s(i[a]);n<(o+=l)&&(i[a]="\n"+i[a],o=l)}t[r]=i.join("")}return t.join("\n")}},"undefined"!=typeof module&&module.exports&&(module.exports=e),Prism.plugins.NormalizeWhitespace=new e({"remove-trailing":!0,"remove-indent":!0,"left-trim":!0,"right-trim":!0}),Prism.hooks.add("before-sanity-check",function(e){var n=Prism.plugins.NormalizeWhitespace;if((!e.settings||!1!==e.settings["whitespace-normalization"])&&Prism.util.isActive(e.element,"whitespace-normalization",!0))if(e.element&&e.element.parentNode||!e.code){var t=e.element.parentNode;if(e.code&&t&&"pre"===t.nodeName.toLowerCase()){for(var r=t.childNodes,i="",o="",a=!1,l=0;l<r.length;++l){var s=r[l];s==e.element?a=!0:"#text"===s.nodeName&&(a?o+=s.nodeValue:i+=s.nodeValue,t.removeChild(s),--l)}if(e.element.children.length&&Prism.plugins.KeepMarkup){var c=i+e.element.innerHTML+o;e.element.innerHTML=n.normalize(c,e.settings),e.code=e.element.textContent}else e.code=i+e.code+o,e.code=n.normalize(e.code,e.settings)}}else e.code=n.normalize(e.code,e.settings)})}function e(e){this.defaults=i({},e)}function s(e){for(var n=0,t=0;t<e.length;++t)e.charCodeAt(t)=="\t".charCodeAt(0)&&(n+=3);return e.length+n}}(); +https://prismjs.com/download.html#themes=prism-coy&languages=markup+css+clike+javascript+python+visual-basic&plugins=line-numbers */ +/// <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 ('currentScript' in document && 1 < 2 /* hack to trip TS' flow analysis */) { + return /** @type {any} */ (document.currentScript); + } + + // IE11 workaround + // we'll get the src of the current script by parsing IE11's error stack trace + // this will not work for inline scripts + + try { + throw new Error(); + } catch (err) { + // Get file src url from stack. Specifically works with the format of stack traces in IE. + // A stack will look like this: + // + // Error + // at _.util.currentScript (http://localhost/components/prism-core.js:119:5) + // at Global code (http://localhost/components/prism-core.js:606:1) + + var src = (/at [^(\r\n]*\((.*):[^:]+:[^:]+\)$/i.exec(err.stack) || [])[1]; + if (src) { + var scripts = document.getElementsByTagName('script'); + for (var i in scripts) { + if (scripts[i].src == src) { + return scripts[i]; + } + } + } + return null; + } + }, + + /** + * Returns whether a given class is active for `element`. + * + * The class can be activated if `element` or one of its ancestors has the given class and it can be deactivated + * if `element` or one of its ancestors has the negated version of the given class. The _negated version_ of the + * given class is just the given class with a `no-` prefix. + * + * Whether the class is active is determined by the closest ancestor of `element` (where `element` itself is + * closest ancestor) that has the given class or the negated version of it. If neither `element` nor any of its + * ancestors have the given class or the negated version of it, then the default activation will be returned. + * + * In the paradoxical situation where the closest ancestor contains __both__ the given class and the negated + * version of it, the class is considered active. + * + * @param {Element} element + * @param {string} className + * @param {boolean} [defaultActivation=false] + * @returns {boolean} + */ + isActive: function (element, className, defaultActivation) { + var no = 'no-' + className; + + while (element) { + var classList = element.classList; + if (classList.contains(className)) { + return true; + } + if (classList.contains(no)) { + return false; + } + element = element.parentElement; + } + return !!defaultActivation; + } + }, + + /** + * This namespace contains all currently loaded languages and the some helper functions to create and modify languages. + * + * @namespace + * @memberof Prism + * @public + */ + languages: { + /** + * The grammar for plain, unformatted text. + */ + plain: plainTextGrammar, + plaintext: plainTextGrammar, + text: plainTextGrammar, + txt: plainTextGrammar, + + /** + * Creates a deep copy of the language with the given id and appends the given tokens. + * + * If a token in `redef` also appears in the copied language, then the existing token in the copied language + * will be overwritten at its original position. + * + * ## Best practices + * + * Since the position of overwriting tokens (token in `redef` that overwrite tokens in the copied language) + * doesn't matter, they can technically be in any order. However, this can be confusing to others that trying to + * understand the language definition because, normally, the order of tokens matters in Prism grammars. + * + * Therefore, it is encouraged to order overwriting tokens according to the positions of the overwritten tokens. + * Furthermore, all non-overwriting tokens should be placed after the overwriting ones. + * + * @param {string} id The id of the language to extend. This has to be a key in `Prism.languages`. + * @param {Grammar} redef The new tokens to append. + * @returns {Grammar} The new language created. + * @public + * @example + * Prism.languages['css-with-colors'] = Prism.languages.extend('css', { + * // Prism.languages.css already has a 'comment' token, so this token will overwrite CSS' 'comment' token + * // at its original position + * 'comment': { ... }, + * // CSS doesn't have a 'color' token, so this token will be appended + * 'color': /\b(?:red|green|blue)\b/ + * }); + */ + extend: function (id, redef) { + var lang = _.util.clone(_.languages[id]); + + for (var key in redef) { + lang[key] = redef[key]; + } + + return lang; + }, + + /** + * Inserts tokens _before_ another token in a language definition or any other grammar. + * + * ## Usage + * + * This helper method makes it easy to modify existing languages. For example, the CSS language definition + * not only defines CSS highlighting for CSS documents, but also needs to define highlighting for CSS embedded + * in HTML through `<style>` elements. To do this, it needs to modify `Prism.languages.markup` and add the + * appropriate tokens. However, `Prism.languages.markup` is a regular JavaScript object literal, so if you do + * this: + * + * ```js + * Prism.languages.markup.style = { + * // token + * }; + * ``` + * + * then the `style` token will be added (and processed) at the end. `insertBefore` allows you to insert tokens + * before existing tokens. For the CSS example above, you would use it like this: + * + * ```js + * Prism.languages.insertBefore('markup', 'cdata', { + * 'style': { + * // token + * } + * }); + * ``` + * + * ## Special cases + * + * If the grammars of `inside` and `insert` have tokens with the same name, the tokens in `inside`'s grammar + * will be ignored. + * + * This behavior can be used to insert tokens after `before`: + * + * ```js + * Prism.languages.insertBefore('markup', 'comment', { + * 'comment': Prism.languages.markup.comment, + * // tokens after 'comment' + * }); + * ``` + * + * ## Limitations + * + * The main problem `insertBefore` has to solve is iteration order. Since ES2015, the iteration order for object + * properties is guaranteed to be the insertion order (except for integer keys) but some browsers behave + * differently when keys are deleted and re-inserted. So `insertBefore` can't be implemented by temporarily + * deleting properties which is necessary to insert at arbitrary positions. + * + * To solve this problem, `insertBefore` doesn't actually insert the given tokens into the target object. + * Instead, it will create a new object and replace all references to the target object with the new one. This + * can be done without temporarily deleting properties, so the iteration order is well-defined. + * + * However, only references that can be reached from `Prism.languages` or `insert` will be replaced. I.e. if + * you hold the target object in a variable, then the value of the variable will not change. + * + * ```js + * var oldMarkup = Prism.languages.markup; + * var newMarkup = Prism.languages.insertBefore('markup', 'comment', { ... }); + * + * assert(oldMarkup !== Prism.languages.markup); + * assert(newMarkup === Prism.languages.markup); + * ``` + * + * @param {string} inside The property of `root` (e.g. a language id in `Prism.languages`) that contains the + * object to be modified. + * @param {string} before The key to insert before. + * @param {Grammar} insert An object containing the key-value pairs to be inserted. + * @param {Object<string, any>} [root] The object containing `inside`, i.e. the object that contains the + * object to be modified. + * + * Defaults to `Prism.languages`. + * @returns {Grammar} The new grammar object. + * @public + */ + insertBefore: function (inside, before, insert, root) { + root = root || /** @type {any} */ (_.languages); + var grammar = root[inside]; + /** @type {Grammar} */ + var ret = {}; + + for (var token in grammar) { + if (grammar.hasOwnProperty(token)) { + + if (token == before) { + for (var newToken in insert) { + if (insert.hasOwnProperty(newToken)) { + ret[newToken] = insert[newToken]; + } + } + } + + // Do not insert token which also occur in insert. See #1525 + if (!insert.hasOwnProperty(token)) { + ret[token] = grammar[token]; + } + } + } + + var old = root[inside]; + root[inside] = ret; + + // Update references in other language definitions + _.languages.DFS(_.languages, function (key, value) { + if (value === old && key != inside) { + this[key] = ret; + } + }); + + return ret; + }, + + // Traverse a language definition with Depth First Search + DFS: function DFS(o, callback, type, visited) { + visited = visited || {}; + + var objId = _.util.objId; + + for (var i in o) { + if (o.hasOwnProperty(i)) { + callback.call(o, i, o[i], type || i); + + var property = o[i]; + var propertyType = _.util.type(property); + + if (propertyType === 'Object' && !visited[objId(property)]) { + visited[objId(property)] = true; + DFS(property, callback, null, visited); + } else if (propertyType === 'Array' && !visited[objId(property)]) { + visited[objId(property)] = true; + DFS(property, callback, i, visited); + } + } + } + } + }, + + plugins: {}, + + /** + * This is the most high-level function in Prism’s API. + * It fetches all the elements that have a `.language-xxxx` class and then calls {@link Prism.highlightElement} on + * each one of them. + * + * This is equivalent to `Prism.highlightAllUnder(document, async, callback)`. + * + * @param {boolean} [async=false] Same as in {@link Prism.highlightAllUnder}. + * @param {HighlightCallback} [callback] Same as in {@link Prism.highlightAllUnder}. + * @memberof Prism + * @public + */ + highlightAll: function (async, callback) { + _.highlightAllUnder(document, async, callback); + }, + + /** + * Fetches all the descendants of `container` that have a `.language-xxxx` class and then calls + * {@link Prism.highlightElement} on each one of them. + * + * The following hooks will be run: + * 1. `before-highlightall` + * 2. `before-all-elements-highlight` + * 3. All hooks of {@link Prism.highlightElement} for each element. + * + * @param {ParentNode} container The root element, whose descendants that have a `.language-xxxx` class will be highlighted. + * @param {boolean} [async=false] Whether each element is to be highlighted asynchronously using Web Workers. + * @param {HighlightCallback} [callback] An optional callback to be invoked on each element after its highlighting is done. + * @memberof Prism + * @public + */ + highlightAllUnder: function (container, async, callback) { + var env = { + callback: callback, + container: container, + selector: 'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code' + }; + + _.hooks.run('before-highlightall', env); + + env.elements = Array.prototype.slice.apply(env.container.querySelectorAll(env.selector)); + + _.hooks.run('before-all-elements-highlight', env); + + for (var i = 0, element; (element = env.elements[i++]);) { + _.highlightElement(element, async === true, env.callback); + } + }, + + /** + * Highlights the code inside a single element. + * + * The following hooks will be run: + * 1. `before-sanity-check` + * 2. `before-highlight` + * 3. All hooks of {@link Prism.highlight}. These hooks will be run by an asynchronous worker if `async` is `true`. + * 4. `before-insert` + * 5. `after-highlight` + * 6. `complete` + * + * Some the above hooks will be skipped if the element doesn't contain any text or there is no grammar loaded for + * the element's language. + * + * @param {Element} element The element containing the code. + * It must have a class of `language-xxxx` to be processed, where `xxxx` is a valid language identifier. + * @param {boolean} [async=false] Whether the element is to be highlighted asynchronously using Web Workers + * to improve performance and avoid blocking the UI when highlighting very large chunks of code. This option is + * [disabled by default](https://prismjs.com/faq.html#why-is-asynchronous-highlighting-disabled-by-default). + * + * Note: All language definitions required to highlight the code must be included in the main `prism.js` file for + * asynchronous highlighting to work. You can build your own bundle on the + * [Download page](https://prismjs.com/download.html). + * @param {HighlightCallback} [callback] An optional callback to be invoked after the highlighting is done. + * Mostly useful when `async` is `true`, since in that case, the highlighting is done asynchronously. + * @memberof Prism + * @public + */ + highlightElement: function (element, async, callback) { + // Find language + var language = _.util.getLanguage(element); + var grammar = _.languages[language]; + + // Set language on the element, if not present + _.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' + }, + /"|'/ + ] + } + }, + '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: /@[\w-](?:[^;{\s]|\s+(?![\s{]))*(?:;|(?=\s*\{))/, + inside: { + 'rule': /^@[\w-]+/, + 'selector-function-argument': { + pattern: /(\bselector\s*\(\s*(?![\s)]))(?:[^()\s]|\s+(?![\s)])|\((?:[^()]|\([^()]*\))*\))+(?=\s*\))/, + lookbehind: true, + alias: 'selector' + }, + 'keyword': { + pattern: /(^|[^\w-])(?:and|not|only|or)(?![\w-])/, + lookbehind: true + } + // See rest below + } + }, + 'url': { + // https://drafts.csswg.org/css-values-3/#urls + pattern: RegExp('\\burl\\((?:' + string.source + '|' + /(?:[^\\\r\n()"']|\\[\s\S])*/.source + ')\\)', 'i'), + greedy: true, + inside: { + 'function': /^url/i, + 'punctuation': /^\(|\)$/, + 'string': { + pattern: RegExp('^' + string.source + '$'), + alias: 'url' + } + } + }, + 'selector': { + pattern: RegExp('(^|[{}\\s])[^{}\\s](?:[^{};"\'\\s]|\\s+(?![\\s{])|' + string.source + ')*(?=\\s*\\{)'), + lookbehind: true + }, + 'string': { + pattern: string, + greedy: true + }, + 'property': { + pattern: /(^|[^-\w\xA0-\uFFFF])(?!\s)[-_a-z\xA0-\uFFFF](?:(?!\s)[-\w\xA0-\uFFFF])*(?=\s*:)/i, + lookbehind: true + }, + 'important': /!important\b/i, + 'function': { + pattern: /(^|[^-a-z0-9])[-a-z0-9]+(?=\()/i, + lookbehind: true + }, + 'punctuation': /[(){};:,]/ + }; + + Prism.languages.css['atrule'].inside.rest = Prism.languages.css; + + var markup = Prism.languages.markup; + if (markup) { + markup.tag.addInlined('style', 'css'); + markup.tag.addAttribute('style', 'css'); + } + +}(Prism)); + +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; + +Prism.languages.python = { + 'comment': { + pattern: /(^|[^\\])#.*/, + lookbehind: true, + greedy: true + }, + 'string-interpolation': { + pattern: /(?:f|fr|rf)(?:("""|''')[\s\S]*?\1|("|')(?:\\.|(?!\2)[^\\\r\n])*\2)/i, + greedy: true, + inside: { + 'interpolation': { + // "{" <expression> <optional "!s", "!r", or "!a"> <optional ":" format specifier> "}" + pattern: /((?:^|[^{])(?:\{\{)*)\{(?!\{)(?:[^{}]|\{(?!\{)(?:[^{}]|\{(?!\{)(?:[^{}])+\})+\})+\}/, + lookbehind: true, + inside: { + 'format-spec': { + pattern: /(:)[^:(){}]+(?=\}$)/, + lookbehind: true + }, + 'conversion-option': { + pattern: /![sra](?=[:}]$)/, + alias: 'punctuation' + }, + rest: null + } + }, + 'string': /[\s\S]+/ + } + }, + 'triple-quoted-string': { + pattern: /(?:[rub]|br|rb)?("""|''')[\s\S]*?\1/i, + greedy: true, + alias: 'string' + }, + 'string': { + pattern: /(?:[rub]|br|rb)?("|')(?:\\.|(?!\1)[^\\\r\n])*\1/i, + greedy: true + }, + 'function': { + pattern: /((?:^|\s)def[ \t]+)[a-zA-Z_]\w*(?=\s*\()/g, + lookbehind: true + }, + 'class-name': { + pattern: /(\bclass\s+)\w+/i, + lookbehind: true + }, + 'decorator': { + pattern: /(^[\t ]*)@\w+(?:\.\w+)*/m, + lookbehind: true, + alias: ['annotation', 'punctuation'], + inside: { + 'punctuation': /\./ + } + }, + 'keyword': /\b(?:_(?=\s*:)|and|as|assert|async|await|break|case|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|match|nonlocal|not|or|pass|print|raise|return|try|while|with|yield)\b/, + 'builtin': /\b(?:__import__|abs|all|any|apply|ascii|basestring|bin|bool|buffer|bytearray|bytes|callable|chr|classmethod|cmp|coerce|compile|complex|delattr|dict|dir|divmod|enumerate|eval|execfile|file|filter|float|format|frozenset|getattr|globals|hasattr|hash|help|hex|id|input|int|intern|isinstance|issubclass|iter|len|list|locals|long|map|max|memoryview|min|next|object|oct|open|ord|pow|property|range|raw_input|reduce|reload|repr|reversed|round|set|setattr|slice|sorted|staticmethod|str|sum|super|tuple|type|unichr|unicode|vars|xrange|zip)\b/, + 'boolean': /\b(?:False|None|True)\b/, + 'number': /\b0(?:b(?:_?[01])+|o(?:_?[0-7])+|x(?:_?[a-f0-9])+)\b|(?:\b\d+(?:_\d+)*(?:\.(?:\d+(?:_\d+)*)?)?|\B\.\d+(?:_\d+)*)(?:e[+-]?\d+(?:_\d+)*)?j?(?!\w)/i, + 'operator': /[-+%=]=?|!=|:=|\*\*?=?|\/\/?=?|<[<=>]?|>[=>]?|[&|^~]/, + 'punctuation': /[{}[\];(),.:]/ +}; + +Prism.languages.python['string-interpolation'].inside['interpolation'].inside.rest = Prism.languages.python; + +Prism.languages.py = Prism.languages.python; + +Prism.languages['visual-basic'] = { + 'comment': { + pattern: /(?:['‘’]|REM\b)(?:[^\r\n_]|_(?:\r\n?|\n)?)*/i, + inside: { + 'keyword': /^REM/i + } + }, + 'directive': { + pattern: /#(?:Const|Else|ElseIf|End|ExternalChecksum|ExternalSource|If|Region)(?:\b_[ \t]*(?:\r\n?|\n)|.)+/i, + alias: 'property', + greedy: true + }, + 'string': { + pattern: /\$?["“”](?:["“”]{2}|[^"“”])*["“”]C?/i, + greedy: true + }, + 'date': { + pattern: /#[ \t]*(?:\d+([/-])\d+\1\d+(?:[ \t]+(?:\d+[ \t]*(?:AM|PM)|\d+:\d+(?::\d+)?(?:[ \t]*(?:AM|PM))?))?|\d+[ \t]*(?:AM|PM)|\d+:\d+(?::\d+)?(?:[ \t]*(?:AM|PM))?)[ \t]*#/i, + alias: 'number' + }, + 'number': /(?:(?:\b\d+(?:\.\d+)?|\.\d+)(?:E[+-]?\d+)?|&[HO][\dA-F]+)(?:[FRD]|U?[ILS])?/i, + 'boolean': /\b(?:False|Nothing|True)\b/i, + 'keyword': /\b(?:AddHandler|AddressOf|Alias|And(?:Also)?|As|Boolean|ByRef|Byte|ByVal|Call|Case|Catch|C(?:Bool|Byte|Char|Date|Dbl|Dec|Int|Lng|Obj|SByte|Short|Sng|Str|Type|UInt|ULng|UShort)|Char|Class|Const|Continue|Currency|Date|Decimal|Declare|Default|Delegate|Dim|DirectCast|Do|Double|Each|Else(?:If)?|End(?:If)?|Enum|Erase|Error|Event|Exit|Finally|For|Friend|Function|Get(?:Type|XMLNamespace)?|Global|GoSub|GoTo|Handles|If|Implements|Imports|In|Inherits|Integer|Interface|Is|IsNot|Let|Lib|Like|Long|Loop|Me|Mod|Module|Must(?:Inherit|Override)|My(?:Base|Class)|Namespace|Narrowing|New|Next|Not(?:Inheritable|Overridable)?|Object|Of|On|Operator|Option(?:al)?|Or(?:Else)?|Out|Overloads|Overridable|Overrides|ParamArray|Partial|Private|Property|Protected|Public|RaiseEvent|ReadOnly|ReDim|RemoveHandler|Resume|Return|SByte|Select|Set|Shadows|Shared|short|Single|Static|Step|Stop|String|Structure|Sub|SyncLock|Then|Throw|To|Try|TryCast|Type|TypeOf|U(?:Integer|Long|Short)|Until|Using|Variant|Wend|When|While|Widening|With(?:Events)?|WriteOnly|Xor)\b/i, + 'operator': /[+\-*/\\^<=>&#@$%!]|\b_(?=[ \t]*[\r\n])/, + 'punctuation': /[{}().,:?]/ +}; + +Prism.languages.vb = Prism.languages['visual-basic']; +Prism.languages.vba = Prism.languages['visual-basic']; + +(function () { + + if (typeof Prism === 'undefined' || typeof document === 'undefined') { + return; + } + + /** + * Plugin name which is used as a class name for <pre> which is activating the plugin + * + * @type {string} + */ + var PLUGIN_NAME = 'line-numbers'; + + /** + * Regular expression used for determining line breaks + * + * @type {RegExp} + */ + var NEW_LINE_EXP = /\n(?!$)/g; + + + /** + * Global exports + */ + var config = Prism.plugins.lineNumbers = { + /** + * Get node for provided line number + * + * @param {Element} element pre element + * @param {number} number line number + * @returns {Element|undefined} + */ + getLine: function (element, number) { + if (element.tagName !== 'PRE' || !element.classList.contains(PLUGIN_NAME)) { + return; + } + + var lineNumberRows = element.querySelector('.line-numbers-rows'); + if (!lineNumberRows) { + return; + } + var lineNumberStart = parseInt(element.getAttribute('data-start'), 10) || 1; + var lineNumberEnd = lineNumberStart + (lineNumberRows.children.length - 1); + + if (number < lineNumberStart) { + number = lineNumberStart; + } + if (number > lineNumberEnd) { + number = lineNumberEnd; + } + + var lineIndex = number - lineNumberStart; + + return lineNumberRows.children[lineIndex]; + }, + + /** + * Resizes the line numbers of the given element. + * + * This function will not add line numbers. It will only resize existing ones. + * + * @param {HTMLElement} element A `<pre>` element with line numbers. + * @returns {void} + */ + resize: function (element) { + resizeElements([element]); + }, + + /** + * Whether the plugin can assume that the units font sizes and margins are not depended on the size of + * the current viewport. + * + * Setting this to `true` will allow the plugin to do certain optimizations for better performance. + * + * Set this to `false` if you use any of the following CSS units: `vh`, `vw`, `vmin`, `vmax`. + * + * @type {boolean} + */ + assumeViewportIndependence: true + }; + + /** + * Resizes the given elements. + * + * @param {HTMLElement[]} elements + */ + function resizeElements(elements) { + elements = elements.filter(function (e) { + var codeStyles = getStyles(e); + var whiteSpace = codeStyles['white-space']; + return whiteSpace === 'pre-wrap' || whiteSpace === 'pre-line'; + }); + + if (elements.length == 0) { + return; + } + + var infos = elements.map(function (element) { + var codeElement = element.querySelector('code'); + var lineNumbersWrapper = element.querySelector('.line-numbers-rows'); + if (!codeElement || !lineNumbersWrapper) { + return undefined; + } + + /** @type {HTMLElement} */ + var lineNumberSizer = element.querySelector('.line-numbers-sizer'); + var codeLines = codeElement.textContent.split(NEW_LINE_EXP); + + if (!lineNumberSizer) { + lineNumberSizer = document.createElement('span'); + lineNumberSizer.className = 'line-numbers-sizer'; + + codeElement.appendChild(lineNumberSizer); + } + + lineNumberSizer.innerHTML = '0'; + lineNumberSizer.style.display = 'block'; + + var oneLinerHeight = lineNumberSizer.getBoundingClientRect().height; + lineNumberSizer.innerHTML = ''; + + return { + element: element, + lines: codeLines, + lineHeights: [], + oneLinerHeight: oneLinerHeight, + sizer: lineNumberSizer, + }; + }).filter(Boolean); + + infos.forEach(function (info) { + var lineNumberSizer = info.sizer; + var lines = info.lines; + var lineHeights = info.lineHeights; + var oneLinerHeight = info.oneLinerHeight; + + lineHeights[lines.length - 1] = undefined; + lines.forEach(function (line, index) { + if (line && line.length > 1) { + var e = lineNumberSizer.appendChild(document.createElement('span')); + e.style.display = 'block'; + e.textContent = line; + } else { + lineHeights[index] = oneLinerHeight; + } + }); + }); + + infos.forEach(function (info) { + var lineNumberSizer = info.sizer; + var lineHeights = info.lineHeights; + + var childIndex = 0; + for (var i = 0; i < lineHeights.length; i++) { + if (lineHeights[i] === undefined) { + lineHeights[i] = lineNumberSizer.children[childIndex++].getBoundingClientRect().height; + } + } + }); + + infos.forEach(function (info) { + var lineNumberSizer = info.sizer; + var wrapper = info.element.querySelector('.line-numbers-rows'); + + lineNumberSizer.style.display = 'none'; + lineNumberSizer.innerHTML = ''; + + info.lineHeights.forEach(function (height, lineNumber) { + wrapper.children[lineNumber].style.height = height + 'px'; + }); + }); + } + + /** + * Returns style declarations for the element + * + * @param {Element} element + */ + function getStyles(element) { + if (!element) { + return null; + } + + return window.getComputedStyle ? getComputedStyle(element) : (element.currentStyle || null); + } + + var lastWidth = undefined; + window.addEventListener('resize', function () { + if (config.assumeViewportIndependence && lastWidth === window.innerWidth) { + return; + } + lastWidth = window.innerWidth; + + resizeElements(Array.prototype.slice.call(document.querySelectorAll('pre.' + PLUGIN_NAME))); + }); + + Prism.hooks.add('complete', function (env) { + if (!env.code) { + return; + } + + var code = /** @type {Element} */ (env.element); + var pre = /** @type {HTMLElement} */ (code.parentNode); + + // works only for <code> wrapped inside <pre> (not inline) + if (!pre || !/pre/i.test(pre.nodeName)) { + return; + } + + // Abort if line numbers already exists + if (code.querySelector('.line-numbers-rows')) { + return; + } + + // only add line numbers if <code> or one of its ancestors has the `line-numbers` class + if (!Prism.util.isActive(code, PLUGIN_NAME)) { + return; + } + + // Remove the class 'line-numbers' from the <code> + code.classList.remove(PLUGIN_NAME); + // Add the class 'line-numbers' to the <pre> + pre.classList.add(PLUGIN_NAME); + + var match = env.code.match(NEW_LINE_EXP); + var linesNum = match ? match.length + 1 : 1; + var lineNumbersWrapper; + + var lines = new Array(linesNum + 1).join('<span></span>'); + + lineNumbersWrapper = document.createElement('span'); + lineNumbersWrapper.setAttribute('aria-hidden', 'true'); + lineNumbersWrapper.className = 'line-numbers-rows'; + lineNumbersWrapper.innerHTML = lines; + + if (pre.hasAttribute('data-start')) { + pre.style.counterReset = 'linenumber ' + (parseInt(pre.getAttribute('data-start'), 10) - 1); + } + + env.element.appendChild(lineNumbersWrapper); + + resizeElements([pre]); + + Prism.hooks.run('line-numbers', env); + }); + + Prism.hooks.add('line-numbers', function (env) { + env.plugins = env.plugins || {}; + env.plugins.lineNumbers = true; + }); + +}()); + |