kmx.io/prism.js/components/prism-js-extras.js

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• Hash : e2630d89
  Author :
  Date : 2021-09-26T11:52:18
  

  ESLint: Added `regexp/sort-alternatives` rule (#3093)

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• components/prism-js-extras.js

• (function (Prism) {
  
  	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']
  		}
  	});
  
  	Prism.languages.insertBefore('javascript', 'function', {
  		'method': {
  			pattern: RegExp('(\\.\\s*)' + Prism.languages.javascript['function'].source),
  			lookbehind: true,
  			alias: ['function', 'property-access']
  		}
  	});
  
  	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(?:(?: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/,
  				alias: 'class-name'
  			},
  			{
  				// errors
  				pattern: /\b(?:[A-Z]\w*)Error\b/,
  				alias: 'class-name'
  			}
  		]
  	});
  
  	/**
  	 * Replaces the `<ID>` placeholder in the given pattern with a pattern for general JS identifiers.
  	 *
  	 * @param {string} source
  	 * @param {string} [flags]
  	 * @returns {RegExp}
  	 */
  	function withId(source, flags) {
  		return RegExp(
  			source.replace(/<ID>/g, function () { return /(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*/.source; }),
  			flags);
  	}
  	Prism.languages.insertBefore('javascript', 'keyword', {
  		'imports': {
  			// https://tc39.es/ecma262/#sec-imports
  			pattern: withId(/(\bimport\b\s*)(?:<ID>(?:\s*,\s*(?:\*\s*as\s+<ID>|\{[^{}]*\}))?|\*\s*as\s+<ID>|\{[^{}]*\})(?=\s*\bfrom\b)/.source),
  			lookbehind: true,
  			inside: Prism.languages.javascript
  		},
  		'exports': {
  			// https://tc39.es/ecma262/#sec-exports
  			pattern: withId(/(\bexport\b\s*)(?:\*(?:\s*as\s+<ID>)?(?=\s*\bfrom\b)|\{[^{}]*\})/.source),
  			lookbehind: true,
  			inside: Prism.languages.javascript
  		}
  	});
  
  	Prism.languages.javascript['keyword'].unshift(
  		{
  			pattern: /\b(?:as|default|export|from|import)\b/,
  			alias: 'module'
  		},
  		{
  			pattern: /\b(?:await|break|catch|continue|do|else|finally|for|if|return|switch|throw|try|while|yield)\b/,
  			alias: 'control-flow'
  		},
  		{
  			pattern: /\bnull\b/,
  			alias: ['null', 'nil']
  		},
  		{
  			pattern: /\bundefined\b/,
  			alias: 'nil'
  		}
  	);
  
  	Prism.languages.insertBefore('javascript', 'operator', {
  		'spread': {
  			pattern: /\.{3}/,
  			alias: 'operator'
  		},
  		'arrow': {
  			pattern: /=>/,
  			alias: 'operator'
  		}
  	});
  
  	Prism.languages.insertBefore('javascript', 'punctuation', {
  		'property-access': {
  			pattern: withId(/(\.\s*)#?<ID>/.source),
  			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|(?:local|session)Storage|location|navigator|performance|window)\b/,
  			alias: 'variable'
  		},
  		'console': {
  			pattern: /\bconsole(?=\s*\.)/,
  			alias: 'class-name'
  		}
  	});
  
  
  	// add 'maybe-class-name' to tokens which might be a class name
  	var maybeClassNameTokens = ['function', 'function-variable', 'method', 'method-variable', 'property-access'];
  
  	for (var i = 0; i < maybeClassNameTokens.length; i++) {
  		var token = maybeClassNameTokens[i];
  		var value = Prism.languages.javascript[token];
  
  		// convert regex to object
  		if (Prism.util.type(value) === 'RegExp') {
  			value = Prism.languages.javascript[token] = {
  				pattern: value
  			};
  		}
  
  		// keep in mind that we don't support arrays
  
  		var inside = value.inside || {};
  		value.inside = inside;
  
  		inside['maybe-class-name'] = /^[A-Z][\s\S]*/;
  	}
  
  }(Prism));
  

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