typescript.js
No OneTemporary
Actions

Size

19 KB

Subscribers

None

typescript.js
View Options

	const IDENT_RE = '[A-Za-z$_][0-9A-Za-z$_]*';
	const KEYWORDS = [
	"as", // for exports
	"in",
	"of",
	"if",
	"for",
	"while",
	"finally",
	"var",
	"new",
	"function",
	"do",
	"return",
	"void",
	"else",
	"break",
	"catch",
	"instanceof",
	"with",
	"throw",
	"case",
	"default",
	"try",
	"switch",
	"continue",
	"typeof",
	"delete",
	"let",
	"yield",
	"const",
	"class",
	// JS handles these with a special rule
	// "get",
	// "set",
	"debugger",
	"async",
	"await",
	"static",
	"import",
	"from",
	"export",
	"extends"
	];
	const LITERALS = [
	"true",
	"false",
	"null",
	"undefined",
	"NaN",
	"Infinity"
	];

	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
	const TYPES = [
	// Fundamental objects
	"Object",
	"Function",
	"Boolean",
	"Symbol",
	// numbers and dates
	"Math",
	"Date",
	"Number",
	"BigInt",
	// text
	"String",
	"RegExp",
	// Indexed collections
	"Array",
	"Float32Array",
	"Float64Array",
	"Int8Array",
	"Uint8Array",
	"Uint8ClampedArray",
	"Int16Array",
	"Int32Array",
	"Uint16Array",
	"Uint32Array",
	"BigInt64Array",
	"BigUint64Array",
	// Keyed collections
	"Set",
	"Map",
	"WeakSet",
	"WeakMap",
	// Structured data
	"ArrayBuffer",
	"SharedArrayBuffer",
	"Atomics",
	"DataView",
	"JSON",
	// Control abstraction objects
	"Promise",
	"Generator",
	"GeneratorFunction",
	"AsyncFunction",
	// Reflection
	"Reflect",
	"Proxy",
	// Internationalization
	"Intl",
	// WebAssembly
	"WebAssembly"
	];

	const ERROR_TYPES = [
	"Error",
	"EvalError",
	"InternalError",
	"RangeError",
	"ReferenceError",
	"SyntaxError",
	"TypeError",
	"URIError"
	];

	const BUILT_IN_GLOBALS = [
	"setInterval",
	"setTimeout",
	"clearInterval",
	"clearTimeout",

	"require",
	"exports",

	"eval",
	"isFinite",
	"isNaN",
	"parseFloat",
	"parseInt",
	"decodeURI",
	"decodeURIComponent",
	"encodeURI",
	"encodeURIComponent",
	"escape",
	"unescape"
	];

	const BUILT_IN_VARIABLES = [
	"arguments",
	"this",
	"super",
	"console",
	"window",
	"document",
	"localStorage",
	"module",
	"global" // Node.js
	];

	const BUILT_INS = [].concat(
	BUILT_IN_GLOBALS,
	TYPES,
	ERROR_TYPES
	);

	/*
	Language: JavaScript
	Description: JavaScript (JS) is a lightweight, interpreted, or just-in-time compiled programming language with first-class functions.
	Category: common, scripting, web
	Website: https://developer.mozilla.org/en-US/docs/Web/JavaScript
	*/

	/** @type LanguageFn */
	function javascript(hljs) {
	const regex = hljs.regex;
	/**
	* Takes a string like "<Booger" and checks to see
	* if we can find a matching "</Booger" later in the
	* content.
	* @param {RegExpMatchArray} match
	* @param {{after:number}} param1
	*/
	const hasClosingTag = (match, { after }) => {
	const tag = "</" + match[0].slice(1);
	const pos = match.input.indexOf(tag, after);
	return pos !== -1;
	};

	const IDENT_RE$1 = IDENT_RE;
	const FRAGMENT = {
	begin: '<>',
	end: '</>'
	};
	// to avoid some special cases inside isTrulyOpeningTag
	const XML_SELF_CLOSING = /<[A-Za-z0-9\\._:-]+\s*\/>/;
	const XML_TAG = {
	begin: /<[A-Za-z0-9\\._:-]+/,
	end: /\/[A-Za-z0-9\\._:-]+>\|\/>/,
	/**
	* @param {RegExpMatchArray} match
	* @param {CallbackResponse} response
	*/
	isTrulyOpeningTag: (match, response) => {
	const afterMatchIndex = match[0].length + match.index;
	const nextChar = match.input[afterMatchIndex];
	if (
	// HTML should not include another raw `<` inside a tag
	// nested type?
	// `<Array<Array<number>>`, etc.
	nextChar === "<" \|\|
	// the , gives away that this is not HTML
	// `<T, A extends keyof T, V>`
	nextChar === ",") {
	response.ignoreMatch();
	return;
	}

	// `<something>`
	// Quite possibly a tag, lets look for a matching closing tag...
	if (nextChar === ">") {
	// if we cannot find a matching closing tag, then we
	// will ignore it
	if (!hasClosingTag(match, { after: afterMatchIndex })) {
	response.ignoreMatch();
	}
	}

	// `<blah />` (self-closing)
	// handled by simpleSelfClosing rule

	// `<From extends string>`
	// technically this could be HTML, but it smells like a type
	let m;
	const afterMatch = match.input.substring(afterMatchIndex);
	// NOTE: This is ugh, but added specifically for https://github.com/highlightjs/highlight.js/issues/3276
	if ((m = afterMatch.match(/^\s+extends\s+/))) {
	if (m.index === 0) {
	response.ignoreMatch();
	// eslint-disable-next-line no-useless-return
	return;
	}
	}
	}
	};
	const KEYWORDS$1 = {
	$pattern: IDENT_RE,
	keyword: KEYWORDS,
	literal: LITERALS,
	built_in: BUILT_INS,
	"variable.language": BUILT_IN_VARIABLES
	};

	// https://tc39.es/ecma262/#sec-literals-numeric-literals
	const decimalDigits = '[0-9](_?[0-9])*';
	const frac = `\\.(${decimalDigits})`;
	// DecimalIntegerLiteral, including Annex B NonOctalDecimalIntegerLiteral
	// https://tc39.es/ecma262/#sec-additional-syntax-numeric-literals
	const decimalInteger = `0\|[1-9](_?[0-9])\|0[0-7][89][0-9]*`;
	const NUMBER = {
	className: 'number',
	variants: [
	// DecimalLiteral
	{ begin: `(\\b(${decimalInteger})((${frac})\|\\.)?\|(${frac}))` +
	`[eE][+-]?(${decimalDigits})\\b` },
	{ begin: `\\b(${decimalInteger})\\b((${frac})\\b\|\\.)?\|(${frac})\\b` },

	// DecimalBigIntegerLiteral
	{ begin: `\\b(0\|[1-9](_?[0-9])*)n\\b` },

	// NonDecimalIntegerLiteral
	{ begin: "\\b0[xX][0-9a-fA-F](_?[0-9a-fA-F])*n?\\b" },
	{ begin: "\\b0[bB][0-1](_?[0-1])*n?\\b" },
	{ begin: "\\b0[oO][0-7](_?[0-7])*n?\\b" },

	// LegacyOctalIntegerLiteral (does not include underscore separators)
	// https://tc39.es/ecma262/#sec-additional-syntax-numeric-literals
	{ begin: "\\b0[0-7]+n?\\b" },
	],
	relevance: 0
	};

	const SUBST = {
	className: 'subst',
	begin: '\\$\\{',
	end: '\\}',
	keywords: KEYWORDS$1,
	contains: [] // defined later
	};
	const HTML_TEMPLATE = {
	begin: 'html`',
	end: '',
	starts: {
	end: '`',
	returnEnd: false,
	contains: [
	hljs.BACKSLASH_ESCAPE,
	SUBST
	],
	subLanguage: 'xml'
	}
	};
	const CSS_TEMPLATE = {
	begin: 'css`',
	end: '',
	starts: {
	end: '`',
	returnEnd: false,
	contains: [
	hljs.BACKSLASH_ESCAPE,
	SUBST
	],
	subLanguage: 'css'
	}
	};
	const TEMPLATE_STRING = {
	className: 'string',
	begin: '`',
	end: '`',
	contains: [
	hljs.BACKSLASH_ESCAPE,
	SUBST
	]
	};
	const JSDOC_COMMENT = hljs.COMMENT(
	/\/\\(?!\/)/,
	'\\*/',
	{
	relevance: 0,
	contains: [
	{
	begin: '(?=@[A-Za-z]+)',
	relevance: 0,
	contains: [
	{
	className: 'doctag',
	begin: '@[A-Za-z]+'
	},
	{
	className: 'type',
	begin: '\\{',
	end: '\\}',
	excludeEnd: true,
	excludeBegin: true,
	relevance: 0
	},
	{
	className: 'variable',
	begin: IDENT_RE$1 + '(?=\\s*(-)\|$)',
	endsParent: true,
	relevance: 0
	},
	// eat spaces (not newlines) so we can find
	// types or variables
	{
	begin: /(?=[^\n])\s/,
	relevance: 0
	}
	]
	}
	]
	}
	);
	const COMMENT = {
	className: "comment",
	variants: [
	JSDOC_COMMENT,
	hljs.C_BLOCK_COMMENT_MODE,
	hljs.C_LINE_COMMENT_MODE
	]
	};
	const SUBST_INTERNALS = [
	hljs.APOS_STRING_MODE,
	hljs.QUOTE_STRING_MODE,
	HTML_TEMPLATE,
	CSS_TEMPLATE,
	TEMPLATE_STRING,
	NUMBER,
	// This is intentional:
	// See https://github.com/highlightjs/highlight.js/issues/3288
	// hljs.REGEXP_MODE
	];
	SUBST.contains = SUBST_INTERNALS
	.concat({
	// we need to pair up {} inside our subst to prevent
	// it from ending too early by matching another }
	begin: /\{/,
	end: /\}/,
	keywords: KEYWORDS$1,
	contains: [
	"self"
	].concat(SUBST_INTERNALS)
	});
	const SUBST_AND_COMMENTS = [].concat(COMMENT, SUBST.contains);
	const PARAMS_CONTAINS = SUBST_AND_COMMENTS.concat([
	// eat recursive parens in sub expressions
	{
	begin: /\(/,
	end: /\)/,
	keywords: KEYWORDS$1,
	contains: ["self"].concat(SUBST_AND_COMMENTS)
	}
	]);
	const PARAMS = {
	className: 'params',
	begin: /\(/,
	end: /\)/,
	excludeBegin: true,
	excludeEnd: true,
	keywords: KEYWORDS$1,
	contains: PARAMS_CONTAINS
	};

	// ES6 classes
	const CLASS_OR_EXTENDS = {
	variants: [
	// class Car extends vehicle
	{
	match: [
	/class/,
	/\s+/,
	IDENT_RE$1,
	/\s+/,
	/extends/,
	/\s+/,
	regex.concat(IDENT_RE$1, "(", regex.concat(/\./, IDENT_RE$1), ")*")
	],
	scope: {
	1: "keyword",
	3: "title.class",
	5: "keyword",
	7: "title.class.inherited"
	}
	},
	// class Car
	{
	match: [
	/class/,
	/\s+/,
	IDENT_RE$1
	],
	scope: {
	1: "keyword",
	3: "title.class"
	}
	},

	]
	};

	const CLASS_REFERENCE = {
	relevance: 0,
	match:
	regex.either(
	// Hard coded exceptions
	/\bJSON/,
	// Float32Array, OutT
	/\b[A-Z][a-z]+([A-Z][a-z]\|\d)/,
	// CSSFactory, CSSFactoryT
	/\b[A-Z]{2,}([A-Z][a-z]+\|\d)+([A-Z][a-z])/,
	// FPs, FPsT
	/\b[A-Z]{2,}[a-z]+([A-Z][a-z]+\|\d)([A-Z][a-z])*/,
	// P
	// single letters are not highlighted
	// BLAH
	// this will be flagged as a UPPER_CASE_CONSTANT instead
	),
	className: "title.class",
	keywords: {
	_: [
	// se we still get relevance credit for JS library classes
	...TYPES,
	...ERROR_TYPES
	]
	}
	};

	const USE_STRICT = {
	label: "use_strict",
	className: 'meta',
	relevance: 10,
	begin: /^\s*['"]use (strict\|asm)['"]/
	};

	const FUNCTION_DEFINITION = {
	variants: [
	{
	match: [
	/function/,
	/\s+/,
	IDENT_RE$1,
	/(?=\s*\()/
	]
	},
	// anonymous function
	{
	match: [
	/function/,
	/\s*(?=\()/
	]
	}
	],
	className: {
	1: "keyword",
	3: "title.function"
	},
	label: "func.def",
	contains: [ PARAMS ],
	illegal: /%/
	};

	const UPPER_CASE_CONSTANT = {
	relevance: 0,
	match: /\b[A-Z][A-Z_0-9]+\b/,
	className: "variable.constant"
	};

	function noneOf(list) {
	return regex.concat("(?!", list.join("\|"), ")");
	}

	const FUNCTION_CALL = {
	match: regex.concat(
	/\b/,
	noneOf([
	...BUILT_IN_GLOBALS,
	"super"
	]),
	IDENT_RE$1, regex.lookahead(/\(/)),
	className: "title.function",
	relevance: 0
	};

	const PROPERTY_ACCESS = {
	begin: regex.concat(/\./, regex.lookahead(
	regex.concat(IDENT_RE$1, /(?![0-9A-Za-z$_(])/)
	)),
	end: IDENT_RE$1,
	excludeBegin: true,
	keywords: "prototype",
	className: "property",
	relevance: 0
	};

	const GETTER_OR_SETTER = {
	match: [
	/get\|set/,
	/\s+/,
	IDENT_RE$1,
	/(?=\()/
	],
	className: {
	1: "keyword",
	3: "title.function"
	},
	contains: [
	{ // eat to avoid empty params
	begin: //
	},
	PARAMS
	]
	};

	const FUNC_LEAD_IN_RE = '(\\(' +
	'[^()]*(\\(' +
	'[^()]*(\\(' +
	'[^()]*' +
	'\\)[^()])' +
	'\\)[^()])' +
	'\\)\|' + hljs.UNDERSCORE_IDENT_RE + ')\\s*=>';

	const FUNCTION_VARIABLE = {
	match: [
	/const\|var\|let/, /\s+/,
	IDENT_RE$1, /\s*/,
	/=\s*/,
	/(async\s*)?/, // async is optional
	regex.lookahead(FUNC_LEAD_IN_RE)
	],
	keywords: "async",
	className: {
	1: "keyword",
	3: "title.function"
	},
	contains: [
	PARAMS
	]
	};

	return {
	name: 'Javascript',
	aliases: ['js', 'jsx', 'mjs', 'cjs'],
	keywords: KEYWORDS$1,
	// this will be extended by TypeScript
	exports: { PARAMS_CONTAINS, CLASS_REFERENCE },
	illegal: /#(?![$_A-z])/,
	contains: [
	hljs.SHEBANG({
	label: "shebang",
	binary: "node",
	relevance: 5
	}),
	USE_STRICT,
	hljs.APOS_STRING_MODE,
	hljs.QUOTE_STRING_MODE,
	HTML_TEMPLATE,
	CSS_TEMPLATE,
	TEMPLATE_STRING,
	COMMENT,
	NUMBER,
	CLASS_REFERENCE,
	{
	className: 'attr',
	begin: IDENT_RE$1 + regex.lookahead(':'),
	relevance: 0
	},
	FUNCTION_VARIABLE,
	{ // "value" container
	begin: '(' + hljs.RE_STARTERS_RE + '\|\\b(case\|return\|throw)\\b)\\s*',
	keywords: 'return throw case',
	relevance: 0,
	contains: [
	COMMENT,
	hljs.REGEXP_MODE,
	{
	className: 'function',
	// we have to count the parens to make sure we actually have the
	// correct bounding ( ) before the =>. There could be any number of
	// sub-expressions inside also surrounded by parens.
	begin: FUNC_LEAD_IN_RE,
	returnBegin: true,
	end: '\\s*=>',
	contains: [
	{
	className: 'params',
	variants: [
	{
	begin: hljs.UNDERSCORE_IDENT_RE,
	relevance: 0
	},
	{
	className: null,
	begin: /$\s*$/,
	skip: true
	},
	{
	begin: /\(/,
	end: /\)/,
	excludeBegin: true,
	excludeEnd: true,
	keywords: KEYWORDS$1,
	contains: PARAMS_CONTAINS
	}
	]
	}
	]
	},
	{ // could be a comma delimited list of params to a function call
	begin: /,/,
	relevance: 0
	},
	{
	match: /\s+/,
	relevance: 0
	},
	{ // JSX
	variants: [
	{ begin: FRAGMENT.begin, end: FRAGMENT.end },
	{ match: XML_SELF_CLOSING },
	{
	begin: XML_TAG.begin,
	// we carefully check the opening tag to see if it truly
	// is a tag and not a false positive
	'on:begin': XML_TAG.isTrulyOpeningTag,
	end: XML_TAG.end
	}
	],
	subLanguage: 'xml',
	contains: [
	{
	begin: XML_TAG.begin,
	end: XML_TAG.end,
	skip: true,
	contains: ['self']
	}
	]
	}
	],
	},
	FUNCTION_DEFINITION,
	{
	// prevent this from getting swallowed up by function
	// since they appear "function like"
	beginKeywords: "while if switch catch for"
	},
	{
	// we have to count the parens to make sure we actually have the correct
	// bounding ( ). There could be any number of sub-expressions inside
	// also surrounded by parens.
	begin: '\\b(?!function)' + hljs.UNDERSCORE_IDENT_RE +
	'\\(' + // first parens
	'[^()]*(\\(' +
	'[^()]*(\\(' +
	'[^()]*' +
	'\\)[^()])' +
	'\\)[^()])' +
	'\\)\\s*\\{', // end parens
	returnBegin:true,
	label: "func.def",
	contains: [
	PARAMS,
	hljs.inherit(hljs.TITLE_MODE, { begin: IDENT_RE$1, className: "title.function" })
	]
	},
	// catch ... so it won't trigger the property rule below
	{
	match: /\.\.\./,
	relevance: 0
	},
	PROPERTY_ACCESS,
	// hack: prevents detection of keywords in some circumstances
	// .keyword()
	// $keyword = x
	{
	match: '\\$' + IDENT_RE$1,
	relevance: 0
	},
	{
	match: [ /\bconstructor(?=\s*\()/ ],
	className: { 1: "title.function" },
	contains: [ PARAMS ]
	},
	FUNCTION_CALL,
	UPPER_CASE_CONSTANT,
	CLASS_OR_EXTENDS,
	GETTER_OR_SETTER,
	{
	match: /\$[(.]/ // relevance booster for a pattern common to JS libs: `$(something)` and `$.something`
	}
	]
	};
	}

	/*
	Language: TypeScript
	Author: Panu Horsmalahti <panu.horsmalahti@iki.fi>
	Contributors: Ike Ku <dempfi@yahoo.com>
	Description: TypeScript is a strict superset of JavaScript
	Website: https://www.typescriptlang.org
	Category: common, scripting
	*/

	/** @type LanguageFn */
	function typescript(hljs) {
	const tsLanguage = javascript(hljs);

	const IDENT_RE$1 = IDENT_RE;
	const TYPES = [
	"any",
	"void",
	"number",
	"boolean",
	"string",
	"object",
	"never",
	"symbol",
	"bigint",
	"unknown"
	];
	const NAMESPACE = {
	beginKeywords: 'namespace',
	end: /\{/,
	excludeEnd: true,
	contains: [ tsLanguage.exports.CLASS_REFERENCE ]
	};
	const INTERFACE = {
	beginKeywords: 'interface',
	end: /\{/,
	excludeEnd: true,
	keywords: {
	keyword: 'interface extends',
	built_in: TYPES
	},
	contains: [ tsLanguage.exports.CLASS_REFERENCE ]
	};
	const USE_STRICT = {
	className: 'meta',
	relevance: 10,
	begin: /^\s*['"]use strict['"]/
	};
	const TS_SPECIFIC_KEYWORDS = [
	"type",
	"namespace",
	"interface",
	"public",
	"private",
	"protected",
	"implements",
	"declare",
	"abstract",
	"readonly",
	"enum",
	"override"
	];
	const KEYWORDS$1 = {
	$pattern: IDENT_RE,
	keyword: KEYWORDS.concat(TS_SPECIFIC_KEYWORDS),
	literal: LITERALS,
	built_in: BUILT_INS.concat(TYPES),
	"variable.language": BUILT_IN_VARIABLES
	};
	const DECORATOR = {
	className: 'meta',
	begin: '@' + IDENT_RE$1,
	};

	const swapMode = (mode, label, replacement) => {
	const indx = mode.contains.findIndex(m => m.label === label);
	if (indx === -1) { throw new Error("can not find mode to replace"); }

	mode.contains.splice(indx, 1, replacement);
	};


	// this should update anywhere keywords is used since
	// it will be the same actual JS object
	Object.assign(tsLanguage.keywords, KEYWORDS$1);

	tsLanguage.exports.PARAMS_CONTAINS.push(DECORATOR);
	tsLanguage.contains = tsLanguage.contains.concat([
	DECORATOR,
	NAMESPACE,
	INTERFACE,
	]);

	// TS gets a simpler shebang rule than JS
	swapMode(tsLanguage, "shebang", hljs.SHEBANG());
	// JS use strict rule purposely excludes `asm` which makes no sense
	swapMode(tsLanguage, "use_strict", USE_STRICT);

	const functionDeclaration = tsLanguage.contains.find(m => m.label === "func.def");
	functionDeclaration.relevance = 0; // () => {} is more typical in TypeScript

	Object.assign(tsLanguage, {
	name: 'TypeScript',
	aliases: [
	'ts',
	'tsx'
	]
	});

	return tsLanguage;
	}

	module.exports = typescript;

File Metadata

Mime Type: text/plain
Expires: Fri, Jul 4, 2:56 PM (3 d, 23 h ago)
Storage Engine: blob
Storage Format: Raw Data
Storage Handle: 3369313

typescript.jsNo OneTemporaryActions

typescript.jsView Options

File Metadata

Event Timeline

typescript.js
No OneTemporary
Actions

typescript.js
View Options