kmx.io/prism.js

diff --git a/components.js b/components.js
index bd47e0d..f11d68a 100644
--- a/components.js
+++ b/components.js
@@ -1,2 +1,2 @@
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templating","require":"markup","owner":"Golmote"},"matlab":{"title":"MATLAB","owner":"Golmote"},"mel":{"title":"MEL","owner":"Golmote"},"mizar":{"title":"Mizar","owner":"Golmote"},"monkey":{"title":"Monkey","owner":"Golmote"},"moonscript":{"title":"MoonScript","alias":"moon","owner":"RunDevelopment"},"n1ql":{"title":"N1QL","owner":"TMWilds"},"n4js":{"title":"N4JS","require":"javascript","peerDependencies":["jsdoc"],"alias":"n4jsd","owner":"bsmith-n4"},"nand2tetris-hdl":{"title":"Nand To Tetris HDL","owner":"stephanmax"},"nasm":{"title":"NASM","owner":"rbmj"},"nginx":{"title":"nginx","owner":"westonganger","require":"clike"},"nim":{"title":"Nim","owner":"Golmote"},"nix":{"title":"Nix","owner":"Golmote"},"nsis":{"title":"NSIS","owner":"idleberg"},"objectivec":{"title":"Objective-C","require":"c","owner":"uranusjr"},"ocaml":{"title":"OCaml","owner":"Golmote"},"opencl":{"title":"OpenCL","require":"cpp","peerDependencies":["c","cpp"],"overrideExampleHeader":true,"owner":"Milania1"},"oz":{"title":"Oz","owner":"Golmote"},"parigp":{"title":"PARI/GP","owner":"Golmote"},"parser":{"title":"Parser","require":"markup","owner":"Golmote"},"pascal":{"title":"Pascal","alias":"objectpascal","aliasTitles":{"objectpascal":"Object Pascal"},"owner":"Golmote"},"pascaligo":{"title":"Pascaligo","owner":"DefinitelyNotAGoat"},"pcaxis":{"title":"PC-Axis","alias":"px","owner":"RunDevelopment"},"perl":{"title":"Perl","owner":"Golmote"},"php":{"title":"PHP","require":["clike","markup-templating"],"owner":"milesj"},"phpdoc":{"title":"PHPDoc","require":["php","javadoclike"],"owner":"RunDevelopment"},"php-extras":{"title":"PHP Extras","require":"php","owner":"milesj"},"plsql":{"title":"PL/SQL","require":"sql","owner":"Golmote"},"powershell":{"title":"PowerShell","owner":"nauzilus"},"processing":{"title":"Processing","require":"clike","owner":"Golmote"},"prolog":{"title":"Prolog","owner":"Golmote"},"properties":{"title":".properties","owner":"Golmote"},"protobuf":{"title":"Protocol Buffers","require":"clike","owner":"just-boris"},"pug":{"title":"Pug","require":["markup","javascript"],"peerDependencies":["coffeescript","ejs","handlebars","less","livescript","markdown","scss","stylus","twig"],"owner":"Golmote"},"puppet":{"title":"Puppet","owner":"Golmote"},"pure":{"title":"Pure","peerDependencies":["c","cpp","fortran"],"owner":"Golmote"},"python":{"title":"Python","alias":"py","owner":"multipetros"},"q":{"title":"Q (kdb+ database)","owner":"Golmote"},"qore":{"title":"Qore","require":"clike","owner":"temnroegg"},"r":{"title":"R","owner":"Golmote"},"jsx":{"title":"React JSX","require":["markup","javascript"],"peerDependencies":["jsdoc","js-extras","js-templates"],"owner":"vkbansal"},"tsx":{"title":"React TSX","require":["jsx","typescript"]},"renpy":{"title":"Ren'py","owner":"HyuchiaDiego"},"reason":{"title":"Reason","require":"clike","owner":"Golmote"},"regex":{"title":"Regex","peerDependencies":["actionscript","coffeescript","flow","javascript","typescript","vala"],"owner":"RunDevelopment"},"rest":{"title":"reST (reStructuredText)","owner":"Golmote"},"rip":{"title":"Rip","owner":"ravinggenius"},"roboconf":{"title":"Roboconf","owner":"Golmote"},"robotframework":{"title":"Robot Framework","alias":"robot","owner":"RunDevelopment"},"ruby":{"title":"Ruby","require":"clike","alias":"rb","owner":"samflores"},"rust":{"title":"Rust","owner":"Golmote"},"sas":{"title":"SAS","peerDependencies":["groovy","lua","sql"],"owner":"Golmote"},"sass":{"title":"Sass (Sass)","require":"css","owner":"Golmote"},"scss":{"title":"Sass (Scss)","require":"css","peerDependencies":"css-extras","owner":"MoOx"},"scala":{"title":"Scala","require":"java","owner":"jozic"},"scheme":{"title":"Scheme","owner":"bacchus123"},"shell-session":{"title":"Shell session","require":"bash","owner":"RunDevelopment"},"smalltalk":{"title":"Smalltalk","owner":"Golmote"},"smarty":{"title":"Smarty","require":"markup-templating","owner":"Golmote"},"solidity":{"title":"Solidity (Ethereum)","require":"clike","owner":"glachaud"},"soy":{"title":"Soy (Closure Template)","require":"markup-templating","owner":"Golmote"},"sparql":{"title":"SPARQL","require":"turtle","owner":"Triply-Dev","alias":"rq"},"splunk-spl":{"title":"Splunk SPL","owner":"RunDevelopment"},"sqf":{"title":"SQF: Status Quo Function (Arma 3)","require":"clike","owner":"RunDevelopment"},"sql":{"title":"SQL","owner":"multipetros"},"stylus":{"title":"Stylus","owner":"vkbansal"},"swift":{"title":"Swift","require":"clike","owner":"chrischares"},"tap":{"title":"TAP","owner":"isaacs","require":"yaml"},"tcl":{"title":"Tcl","owner":"PeterChaplin"},"textile":{"title":"Textile","require":"markup","peerDependencies":"css","owner":"Golmote"},"toml":{"title":"TOML","owner":"RunDevelopment"},"tt2":{"title":"Template Toolkit 2","require":["clike","markup-templating"],"owner":"gflohr"},"turtle":{"title":"Turtle","alias":["trig"],"aliasTitles":{"trig":"TriG"},"owner":"jakubklimek"},"twig":{"title":"Twig","require":"markup","owner":"brandonkelly"},"typescript":{"title":"TypeScript","require":"javascript","peerDependencies":"js-templates","alias":"ts","owner":"vkbansal"},"t4-cs":{"title":"T4 Text Templates (C#)","require":["t4-templating","csharp"],"alias":"t4","owner":"RunDevelopment"},"t4-vb":{"title":"T4 Text Templates (VB)","require":["t4-templating","visual-basic"],"owner":"RunDevelopment"},"t4-templating":{"title":"T4 templating","owner":"RunDevelopment"},"vala":{"title":"Vala","require":"clike","owner":"TemplarVolk"},"vbnet":{"title":"VB.Net","require":"basic","owner":"Bigsby"},"velocity":{"title":"Velocity","require":"markup","owner":"Golmote"},"verilog":{"title":"Verilog","owner":"a-rey"},"vhdl":{"title":"VHDL","owner":"a-rey"},"vim":{"title":"vim","owner":"westonganger"},"visual-basic":{"title":"Visual Basic","alias":"vb","owner":"Golmote"},"wasm":{"title":"WebAssembly","owner":"Golmote"},"wiki":{"title":"Wiki markup","require":"markup","owner":"Golmote"},"xeora":{"title":"Xeora","require":"markup","alias":"xeoracube","aliasTitles":{"xeoracube":"XeoraCube"},"owner":"freakmaxi"},"xojo":{"title":"Xojo (REALbasic)","owner":"Golmote"},"xquery":{"title":"XQuery","require":"markup","owner":"Golmote"},"yaml":{"title":"YAML","alias":"yml","owner":"hason"},"zig":{"title":"Zig","owner":"RunDevelopment"}},"plugins":{"meta":{"path":"plugins/{id}/prism-{id}","link":"plugins/{id}/"},"line-highlight":{"title":"Line Highlight","description":"Highlights specific lines and/or line ranges."},"line-numbers":{"title":"Line Numbers","description":"Line number at the beginning of code lines.","owner":"kuba-kubula"},"show-invisibles":{"title":"Show Invisibles","description":"Show hidden characters such as tabs and line breaks.","after":["autolinker","data-uri-highlight"]},"autolinker":{"title":"Autolinker","description":"Converts URLs and emails in code to clickable links. Parses Markdown links in comments."},"wpd":{"title":"WebPlatform Docs","description":"Makes tokens link to <a href=\"https://webplatform.github.io/docs/\">WebPlatform.org documentation</a>. The links open in a new tab."},"custom-class":{"title":"Custom Class","description":"This plugin allows you to prefix Prism's default classes (<code>.comment</code> can become <code>.namespace--comment</code>) or replace them with your defined ones (like <code>.editor__comment</code>). You can even add new classes.","owner":"dvkndn","noCSS":true},"file-highlight":{"title":"File Highlight","description":"Fetch external files and highlight them with Prism. Used on the Prism website itself.","noCSS":true},"show-language":{"title":"Show Language","description":"Display the highlighted language in code blocks (inline code does not show the label).","owner":"nauzilus","noCSS":true,"require":"toolbar"},"jsonp-highlight":{"title":"JSONP Highlight","description":"Fetch content with JSONP and highlight some interesting content (e.g. GitHub/Gists or Bitbucket API).","noCSS":true,"owner":"nauzilus"},"highlight-keywords":{"title":"Highlight Keywords","description":"Adds special CSS classes for each keyword matched in the code. For example, the keyword <code>if</code> will have the class <code>keyword-if</code> as well. You can have fine grained control over the appearance of each keyword by providing your own CSS rules.","owner":"vkbansal","noCSS":true},"remove-initial-line-feed":{"title":"Remove initial line feed","description":"Removes the initial line feed in code blocks.","owner":"Golmote","noCSS":true},"inline-color":{"title":"Inline color","description":"Adds a small inline preview for colors in style sheets.","require":"css-extras","owner":"RunDevelopment"},"previewers":{"title":"Previewers","description":"Previewers for angles, colors, gradients, easing and time.","require":"css-extras","owner":"Golmote"},"autoloader":{"title":"Autoloader","description":"Automatically loads the needed languages to highlight the code blocks.","owner":"Golmote","noCSS":true},"keep-markup":{"title":"Keep Markup","description":"Prevents custom markup from being dropped out during highlighting.","owner":"Golmote","after":"normalize-whitespace","noCSS":true},"command-line":{"title":"Command Line","description":"Display a command line with a prompt and, optionally, the output/response from the commands.","owner":"chriswells0"},"unescaped-markup":{"title":"Unescaped Markup","description":"Write markup without having to escape anything."},"normalize-whitespace":{"title":"Normalize Whitespace","description":"Supports multiple operations to normalize whitespace in code blocks.","owner":"zeitgeist87","after":"unescaped-markup","noCSS":true},"data-uri-highlight":{"title":"Data-URI Highlight","description":"Highlights data-URI contents.","owner":"Golmote","noCSS":true},"toolbar":{"title":"Toolbar","description":"Attach a toolbar for plugins to easily register buttons on the top of a code block.","owner":"mAAdhaTTah"},"copy-to-clipboard":{"title":"Copy to Clipboard Button","description":"Add a button that copies the code block to the clipboard when clicked.","owner":"mAAdhaTTah","require":"toolbar","noCSS":true},"download-button":{"title":"Download Button","description":"A button in the toolbar of a code block adding a convenient way to download a code file.","owner":"Golmote","require":"toolbar","noCSS":true},"match-braces":{"title":"Match braces","description":"Highlights matching braces.","owner":"RunDevelopment"},"diff-highlight":{"title":"Diff Highlight","description":"Highlights the code inside diff blocks.","owner":"RunDevelopment","require":"diff"}}};
 if (typeof module !== 'undefined' && module.exports) { module.exports = components; }
\ No newline at end of file
diff --git a/components.json b/components.json
index 15668b5..ea7897f 100644
--- a/components.json
+++ b/components.json
@@ -1099,7 +1099,7 @@
 		},
 		"custom-class": {
 			"title": "Custom Class",
-			"description": "Allows you to prefix Prism default classes (e.g. <code>.comment</code> will become <code>.namespace--comment</code>) or replace them with your defined ones (like <code>.editor__comment</code> or <code>.comment_7sh3a</code>).",
+			"description": "This plugin allows you to prefix Prism's default classes (<code>.comment</code> can become <code>.namespace--comment</code>) or replace them with your defined ones (like <code>.editor__comment</code>). You can even add new classes.",
 			"owner": "dvkndn",
 			"noCSS": true
 		},
diff --git a/plugins/custom-class/index.html b/plugins/custom-class/index.html
index 0546430..ee9d8f6 100644
--- a/plugins/custom-class/index.html
+++ b/plugins/custom-class/index.html
@@ -23,7 +23,7 @@
 
 	<ul>
 		<li>
-			 You want to add namespace for all of them (like <code>.prism--comment</code>) to avoid conflict with your existing classes.
+			You want to add namespace for all of them (like <code>.prism--comment</code>) to avoid conflict with your existing classes.
 		</li>
 		<li>
 			You use a naming convention (like <a href="https://en.bem.info/method">BEM</a>). You want to write classes like <code>.editor__comment</code>.
@@ -31,17 +31,20 @@
 		<li>You use
 			<a href="https://github.com/css-modules/css-modules">CSS Modules</a>. You want to use your hashed classes, like <code>.comment_7sh3a</code>.
 		</li>
+		<li>You need more granular control about the classes of certain tokens.
+			You can define functions which will add new classes to tokens, so selectively change the highlighting of certain parts of your code.
+		</li>
 	</ul>
+</section>
 
-	<h1>Features</h1>
-
-	<p>This plugin currently provides 2 features:</p>
+<section>
+	<h1>How to use</h1>
 
-	<h2>1. Prefix all Prism classes with a string</h2>
+	<h2>Prefix all Prism classes</h2>
 
-	<code>Prism.plugins.customClass.prefix('prism--')</code>
+	<pre><code>Prism.plugins.customClass.prefix('prism--')</code></pre>
 
-	<h2>2. Replace some Prism classes with your defined ones via an object</h2>
+	<h2>Replace some Prism classes with ones you defined</h2>
 
 	<pre class="language-js"><code>Prism.plugins.customClass.map({
 	keyword: 'special-keyword',
@@ -49,11 +52,11 @@
 	comment: 'comment_93jsa'
 });</code></pre>
 
-	<p>Object's keys are the tokens you want to replace (eg: <code>comment</code>), with their values being the classes you want to use (eg: <code>my-comment</code>). Tokens which are not specified will stay the same.</p>
+	<p>Object's keys are the classes you want to replace (eg: <code>comment</code>), with their values being the classes you want to use (eg: <code>my-comment</code>). Classes which are not specified will stay as they are.</p>
 
 	<p>Alternatively you can also pass a function that takes the original class and returns the mapped class. This function can also be used implement language specific mapped classes.<br>Example:</p>
 
-	<pre class="language-js"><code>Prism.plugins.customClass.map(function (className, language) {
+	<pre class="language-js"><code>Prism.plugins.customClass.map((className, language) => {
 	if (language === 'css') {
 		return cssSpecificMap[className] || className;
 	} else {
@@ -61,6 +64,21 @@
 	}
 });</code></pre>
 
+	<h2>Add new classes</h2>
+
+	<p>You can add new classes with per-token and per-language precision.</p>
+
+	<pre class="language-js"><code>Prism.plugins.customClass.add(({content, type, language}) => {
+	if (content === 'content' && type === 'property' && language === 'css') {
+		return 'content-property';
+	}
+});</code></pre>
+
+	<p><b>Note:</b> The given <code>content</code> is the inner HTML of the current token. All <code>&lt;</code> and <code>&amp;</code> characters are escaped and it might contain the HTML code of nested tokens.</p>
+
+</section>
+
+<section>
 	<h1>Notes</h1>
 
 	<ul>
@@ -96,19 +114,21 @@ Prism.plugins.customClass.map(classMap)</code></pre>
 <section>
 	<h1>Example</h1>
 
-	<h2>Input</h2>
+	<h2>Prefix and map classes</h2>
+
+	<p>Input</p>
 	<pre class="language-markup"><code>&lt;pre class=&quot;language-javascript&quot;&gt;&lt;code&gt;
 	var foo = 'bar';
 &lt;/code&gt;&lt;/pre&gt;</code></pre>
 
-	<h2>Options</h2>
+	<p>Options</p>
 	<pre class="language-js"><code>Prism.plugins.customClass.map({
 	keyword: 'special-keyword',
 	string: 'my-string'
 });
 Prism.plugins.customClass.prefix('pr-');</code></pre>
 
-	<h2>Output</h2>
+	<p>Output</p>
 	<pre class="language-markup"><code>&lt;pre class=&quot;language-javascript&quot;&gt;&lt;code&gt;
 	&lt;span class=&quot;pr-token pr-special-keyword&quot;&gt;var&lt;/span&gt;
 	foo
@@ -116,6 +136,39 @@ Prism.plugins.customClass.prefix('pr-');</code></pre>
 	&lt;span class=&quot;pr-my-string&quot;&gt;'bar'&lt;/span&gt;
 	&lt;span class=&quot;pr-token pr-punctuation&quot;&gt;;&lt;/span&gt;
 &lt;/code&gt;&lt;/pre&gt;</code></pre>
+
+	<h2>Add new classes</h2>
+
+	<p>Input</p>
+	<pre class="language-markup"><code>&lt;pre class=&quot;language-css&quot;&gt;&lt;code&gt;
+a::after {
+	content: '\2b00 ';
+	opacity: .7;
+}
+&lt;/code&gt;&lt;/pre&gt;</code></pre>
+
+	<p>Options</p>
+	<pre class="language-js"><code>Prism.plugins.customClass.add(({language, type, content}) => {
+	if (content === 'content' && type === 'property' && language === 'css') {
+		return 'content-property';
+	}
+});</code></pre>
+
+	<p>Output</p>
+	<pre class="language-markup"><code>&lt;pre class=" language-css">&lt;code class=" language-css">
+&lt;span class="token selector">a::after&lt;/span>
+&lt;span class="token punctuation">{&lt;/span>
+	&lt;span class="token property content-property">content&lt;/span>
+	&lt;span class="token punctuation">:&lt;/span>
+	&lt;span class="token string">'\2b00 '&lt;/span>
+	&lt;span class="token punctuation">;&lt;/span>
+	&lt;span class="token property">opacity&lt;/span>
+	&lt;span class="token punctuation">:&lt;/span>
+	 .7
+	&lt;span class="token punctuation">;&lt;/span>
+&lt;span class="token punctuation">}&lt;/span>
+&lt;/code>&lt;/pre></code></pre>
+
 </section>
 
 <footer data-src="templates/footer.html" data-type="text/html"></footer>
diff --git a/plugins/custom-class/prism-custom-class.js b/plugins/custom-class/prism-custom-class.js
index 3b5e6c1..24f5654 100644
--- a/plugins/custom-class/prism-custom-class.js
+++ b/plugins/custom-class/prism-custom-class.js
@@ -1,68 +1,95 @@
-(function(){
+(function () {
 
-if (
-	(typeof self === 'undefined' || !self.Prism) &&
-	(typeof global === 'undefined' || !global.Prism)
-) {
-	return;
-}
-
-/**
- * @callback ClassMapper
- * @param {string} className
- * @param {string} language
- * @returns {string}
- */
-/**
- * @typedef CustomClassOptions
- * @property {ClassMapper} classMap
- * @property {string} prefixString
- */
-
-/** @type {ClassMapper} */
-var defaultClassMap = function (className) { return className; };
-
-/** @type {CustomClassOptions} */
-var options = {
-	classMap: defaultClassMap,
-	prefixString: ''
-};
+	if (
+		(typeof self === 'undefined' || !self.Prism) &&
+		(typeof global === 'undefined' || !global.Prism)
+	) {
+		return;
+	}
 
-Prism.plugins.customClass = {
 	/**
-	 * Maps all class names using the given object or map function.
+	 * @callback ClassMapper
+	 * @param {string} className
+	 * @param {string} language
+	 * @returns {string}
 	 *
-	 * This does not affect the prefix.
+	 * @callback ClassAdder
+	 * @param {ClassAdderEnvironment} env
+	 * @returns {undefined | string | string[]}
 	 *
-	 * @param {Object<string, string> | ClassMapper} classMap
+	 * @typedef ClassAdderEnvironment
+	 * @property {string} language
+	 * @property {string} type
+	 * @property {string} content
 	 */
-	map: function map(classMap) {
-		if (typeof classMap === 'function') {
-			options.classMap = classMap;
-		} else {
-			options.classMap = function (className) {
-				return classMap[className] || className;
-			};
+
+	// options
+
+	/** @type {ClassAdder | undefined} */
+	var adder;
+	/** @type {ClassMapper | undefined} */
+	var mapper;
+	/** @type {string} */
+	var prefixString = '';
+
+
+	Prism.plugins.customClass = {
+		/**
+		 * Sets the function which can be used to add custom aliases to any token.
+		 *
+		 * @param {ClassAdder} classAdder
+		 */
+		add: function (classAdder) {
+			adder = classAdder;
+		},
+		/**
+		 * Maps all class names using the given object or map function.
+		 *
+		 * This does not affect the prefix.
+		 *
+		 * @param {Object<string, string> | ClassMapper} classMapper
+		 */
+		map: function map(classMapper) {
+			if (typeof classMapper === 'function') {
+				mapper = classMapper;
+			} else {
+				mapper = function (className) {
+					return classMapper[className] || className;
+				};
+			}
+		},
+		/**
+		 * Adds the given prefix to all class names.
+		 *
+		 * @param {string} string
+		 */
+		prefix: function prefix(string) {
+			prefixString = string || '';
 		}
-	},
-	/**
-	 * Adds the given prefix to all class names.
-	 *
-	 * @param {string} string
-	 */
-	prefix: function prefix(string) {
-		options.prefixString = string;
 	}
-}
 
-Prism.hooks.add('wrap', function (env) {
-	if (options.classMap === defaultClassMap && !options.prefixString) {
-		return;
-	}
+	Prism.hooks.add('wrap', function (env) {
+		if (adder) {
+			var result = adder({
+				content: env.content,
+				type: env.type,
+				language: env.language
+			});
+
+			if (Array.isArray(result)) {
+				env.classes.push.apply(env.classes, result);
+			} else if (result) {
+				env.classes.push(result);
+			}
+		}
+
+		if (!mapper && !prefixString) {
+			return;
+		}
 
-	env.classes = env.classes.map(function (c) {
-		return options.prefixString + options.classMap(c, env.language);
+		env.classes = env.classes.map(function (c) {
+			return prefixString + mapper ? mapper(c, env.language) : c;
+		});
 	});
-});
 
 })();
diff --git a/plugins/custom-class/prism-custom-class.min.js b/plugins/custom-class/prism-custom-class.min.js
index a087f0e..da639b6 100644
--- a/plugins/custom-class/prism-custom-class.min.js
+++ b/plugins/custom-class/prism-custom-class.min.js
@@ -1 +1 @@
-!function(){if("undefined"!=typeof self&&self.Prism||"undefined"!=typeof global&&global.Prism){var n=function(n){return n},s={classMap:n,prefixString:""};Prism.plugins.customClass={map:function(i){s.classMap="function"==typeof i?i:function(n){return i[n]||n}},prefix:function(n){s.prefixString=n}},Prism.hooks.add("wrap",function(i){(s.classMap!==n||s.prefixString)&&(i.classes=i.classes.map(function(n){return s.prefixString+s.classMap(n,i.language)}))})}}();
\ No newline at end of file
+!function(){if("undefined"!=typeof self&&self.Prism||"undefined"!=typeof global&&global.Prism){var a,e,t="";Prism.plugins.customClass={add:function(n){a=n},map:function(s){e="function"==typeof s?s:function(n){return s[n]||n}},prefix:function(n){t=n||""}},Prism.hooks.add("wrap",function(s){if(a){var n=a({content:s.content,type:s.type,language:s.language});Array.isArray(n)?s.classes.push.apply(s.classes,n):n&&s.classes.push(n)}(e||t)&&(s.classes=s.classes.map(function(n){return t+e?e(n,s.language):n}))})}}();
\ No newline at end of file