136 lines
3.7 KiB
JavaScript
136 lines
3.7 KiB
JavaScript
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(function (Prism) {
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Prism.languages.insertBefore('javascript', 'function-variable', {
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'method-variable': {
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pattern: RegExp('(\\.\\s*)' + Prism.languages.javascript['function-variable'].pattern.source),
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lookbehind: true,
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alias: ['function-variable', 'method', 'function', 'property-access']
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}
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});
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Prism.languages.insertBefore('javascript', 'function', {
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'method': {
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pattern: RegExp('(\\.\\s*)' + Prism.languages.javascript['function'].source),
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lookbehind: true,
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alias: ['function', 'property-access']
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}
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});
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Prism.languages.insertBefore('javascript', 'constant', {
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'known-class-name': [
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{
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// standard built-ins
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
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pattern: /\b(?:(?:Float(?:32|64)|(?:Int|Uint)(?:8|16|32)|Uint8Clamped)?Array|ArrayBuffer|BigInt|Boolean|DataView|Date|Error|Function|Intl|JSON|(?:Weak)?(?:Map|Set)|Math|Number|Object|Promise|Proxy|Reflect|RegExp|String|Symbol|WebAssembly)\b/,
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alias: 'class-name'
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},
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{
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// errors
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pattern: /\b(?:[A-Z]\w*)Error\b/,
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alias: 'class-name'
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}
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]
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});
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/**
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* Replaces the `<ID>` placeholder in the given pattern with a pattern for general JS identifiers.
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*
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* @param {string} source
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* @param {string} [flags]
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* @returns {RegExp}
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*/
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function withId(source, flags) {
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return RegExp(
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source.replace(/<ID>/g, function () { return /(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*/.source; }),
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flags);
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}
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Prism.languages.insertBefore('javascript', 'keyword', {
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'imports': {
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// https://tc39.es/ecma262/#sec-imports
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pattern: withId(/(\bimport\b\s*)(?:<ID>(?:\s*,\s*(?:\*\s*as\s+<ID>|\{[^{}]*\}))?|\*\s*as\s+<ID>|\{[^{}]*\})(?=\s*\bfrom\b)/.source),
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lookbehind: true,
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inside: Prism.languages.javascript
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},
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'exports': {
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// https://tc39.es/ecma262/#sec-exports
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pattern: withId(/(\bexport\b\s*)(?:\*(?:\s*as\s+<ID>)?(?=\s*\bfrom\b)|\{[^{}]*\})/.source),
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lookbehind: true,
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inside: Prism.languages.javascript
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}
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});
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Prism.languages.javascript['keyword'].unshift(
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{
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pattern: /\b(?:as|default|export|from|import)\b/,
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alias: 'module'
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},
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{
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pattern: /\b(?:await|break|catch|continue|do|else|finally|for|if|return|switch|throw|try|while|yield)\b/,
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alias: 'control-flow'
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},
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{
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pattern: /\bnull\b/,
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alias: ['null', 'nil']
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},
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{
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pattern: /\bundefined\b/,
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alias: 'nil'
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}
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);
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Prism.languages.insertBefore('javascript', 'operator', {
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'spread': {
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pattern: /\.{3}/,
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alias: 'operator'
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},
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'arrow': {
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pattern: /=>/,
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alias: 'operator'
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}
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});
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Prism.languages.insertBefore('javascript', 'punctuation', {
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'property-access': {
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pattern: withId(/(\.\s*)#?<ID>/.source),
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lookbehind: true
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},
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'maybe-class-name': {
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pattern: /(^|[^$\w\xA0-\uFFFF])[A-Z][$\w\xA0-\uFFFF]+/,
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lookbehind: true
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},
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'dom': {
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// this contains only a few commonly used DOM variables
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pattern: /\b(?:document|(?:local|session)Storage|location|navigator|performance|window)\b/,
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alias: 'variable'
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},
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'console': {
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pattern: /\bconsole(?=\s*\.)/,
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alias: 'class-name'
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}
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});
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// add 'maybe-class-name' to tokens which might be a class name
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var maybeClassNameTokens = ['function', 'function-variable', 'method', 'method-variable', 'property-access'];
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for (var i = 0; i < maybeClassNameTokens.length; i++) {
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var token = maybeClassNameTokens[i];
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var value = Prism.languages.javascript[token];
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// convert regex to object
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if (Prism.util.type(value) === 'RegExp') {
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value = Prism.languages.javascript[token] = {
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pattern: value
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};
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}
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// keep in mind that we don't support arrays
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var inside = value.inside || {};
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value.inside = inside;
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inside['maybe-class-name'] = /^[A-Z][\s\S]*/;
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}
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}(Prism));
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