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This adds JS Extras, a few additional features for the JS language.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| (function (Prism) { | ||
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| Prism.languages.insertBefore('javascript', 'function-variable', { | ||
| 'method-variable': { | ||
| pattern: RegExp('(\\.\\s*)' + Prism.languages.javascript['function-variable'].pattern.source), | ||
| lookbehind: true, | ||
| alias: ['function-variable', 'method', 'function', 'property-access'] | ||
| } | ||
| }); | ||
|
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| Prism.languages.insertBefore('javascript', 'function', { | ||
| 'method': { | ||
| pattern: RegExp('(\\.\\s*)' + Prism.languages.javascript['function'].source), | ||
| lookbehind: true, | ||
| alias: ['function', 'property-access'] | ||
| } | ||
| }); | ||
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| Prism.languages.insertBefore('javascript', 'constant', { | ||
| 'known-class-name': [ | ||
| { | ||
| // standard built-ins | ||
| // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects | ||
| pattern: /\b(?:(?:(?:Uint|Int)(?:8|16|32)|Uint8Clamped|Float(?:32|64))?Array|ArrayBuffer|BigInt|Boolean|DataView|Date|Error|Function|Intl|JSON|Math|Number|Object|Promise|Proxy|Reflect|RegExp|String|Symbol|(?:Weak)?(?:Set|Map)|WebAssembly)\b/, | ||
| alias: 'class-name' | ||
| }, | ||
| { | ||
| // errors | ||
| pattern: /\b(?:[A-Z]\w*)Error\b/, | ||
| alias: 'class-name' | ||
| } | ||
| ] | ||
| }); | ||
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| Prism.languages.javascript['keyword'].unshift( | ||
| { | ||
| pattern: /\b(?:as|default|export|from|import)\b/, | ||
| alias: 'module' | ||
| }, | ||
| { | ||
| pattern: /\bnull\b/, | ||
| alias: ['null', 'nil'] | ||
| }, | ||
| { | ||
| pattern: /\bundefined\b/, | ||
| alias: 'nil' | ||
| } | ||
| ); | ||
|
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| Prism.languages.insertBefore('javascript', 'operator', { | ||
| 'spread': { | ||
| pattern: /\.{3}/, | ||
| alias: 'operator' | ||
| }, | ||
| 'arrow': { | ||
| pattern: /=>/, | ||
| alias: 'operator' | ||
| } | ||
| }); | ||
|
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| Prism.languages.insertBefore('javascript', 'punctuation', { | ||
| 'property-access': { | ||
| pattern: /(\.\s*)[_$a-zA-Z\xA0-\uFFFF][$\w\xA0-\uFFFF]*/, | ||
| lookbehind: true | ||
| }, | ||
| 'maybe-class-name': { | ||
| pattern: /(^|[^$\w\xA0-\uFFFF])[A-Z][$\w\xA0-\uFFFF]+/, | ||
| lookbehind: true | ||
| }, | ||
| 'dom': { | ||
| // this contains only a few commonly used DOM variables | ||
| pattern: /\b(?:document|location|navigator|performance|(?:local|session)Storage|window)\b/, | ||
| alias: 'variable' | ||
| }, | ||
| 'console': { | ||
| pattern: /\bconsole(?=\s*\.)/, | ||
| alias: 'class-name' | ||
| } | ||
| }); | ||
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| // add 'maybe-class-name' to tokens which might be a class name | ||
| var maybeClassNameTokens = ['function', 'function-variable', 'method', 'method-variable', 'property-access']; | ||
|
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| for (var i = 0; i < maybeClassNameTokens.length; i++) { | ||
| var token = maybeClassNameTokens[i]; | ||
| var value = Prism.languages.javascript[token]; | ||
|
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| // convert regex to object | ||
| if (Prism.util.type(value) === 'RegExp') { | ||
| value = Prism.languages.javascript[token] = { | ||
| pattern: value | ||
| }; | ||
| } | ||
|
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| // keep in mind that we don't support arrays | ||
|
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| var inside = value.inside || {}; | ||
| value.inside = inside; | ||
|
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| inside['maybe-class-name'] = /^[A-Z][\s\S]*/; | ||
| } | ||
|
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| }(Prism)); |
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