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

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• Hash : e644178b
  Author :
  Date : 2020-12-28T18:19:11
  

  Added test for polynomial backtracking (#2597)

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• components/prism-zig.js

• (function (Prism) {
  
  	function literal(str) {
  		return function () { return str; };
  	}
  
  	var keyword = /\b(?:align|allowzero|and|asm|async|await|break|cancel|catch|comptime|const|continue|defer|else|enum|errdefer|error|export|extern|fn|for|if|inline|linksection|nakedcc|noalias|null|or|orelse|packed|promise|pub|resume|return|stdcallcc|struct|suspend|switch|test|threadlocal|try|undefined|union|unreachable|usingnamespace|var|volatile|while)\b/;
  
  	var IDENTIFIER = '\\b(?!' + keyword.source + ')(?!\\d)\\w+\\b';
  	var ALIGN = /align\s*\((?:[^()]|\([^()]*\))*\)/.source;
  	var PREFIX_TYPE_OP = /(?:\?|\bpromise->|(?:\[[^[\]]*\]|\*(?!\*)|\*\*)(?:\s*<ALIGN>|\s*const\b|\s*volatile\b|\s*allowzero\b)*)/.source.replace(/<ALIGN>/g, literal(ALIGN));
  	var SUFFIX_EXPR = /(?:\bpromise\b|(?:\berror\.)?<ID>(?:\.<ID>)*(?!\s+<ID>))/.source.replace(/<ID>/g, literal(IDENTIFIER));
  	var TYPE = '(?!\\s)(?:!?\\s*(?:' + PREFIX_TYPE_OP + '\\s*)*' + SUFFIX_EXPR + ')+';
  
  	/*
  	 * A simplified grammar for Zig compile time type literals:
  	 *
  	 * TypeExpr = ( "!"? PREFIX_TYPE_OP* SUFFIX_EXPR )+
  	 *
  	 * SUFFIX_EXPR = ( \b "promise" \b | ( \b "error" "." )? IDENTIFIER ( "." IDENTIFIER )* (?! \s+ IDENTIFIER ) )
  	 *
  	 * PREFIX_TYPE_OP = "?"
  	 *                | \b "promise" "->"
  	 *                | ( "[" [^\[\]]* "]" | "*" | "**" ) ( ALIGN | "const" \b | "volatile" \b | "allowzero" \b )*
  	 *
  	 * ALIGN = "align" "(" ( [^()] | "(" [^()]* ")" )* ")"
  	 *
  	 * IDENTIFIER = \b (?! KEYWORD ) [a-zA-Z_] \w* \b
  	 *
  	*/
  
  	Prism.languages.zig = {
  		'comment': [
  			{
  				pattern: /\/{3}.*/,
  				alias: 'doc-comment'
  			},
  			/\/{2}.*/
  		],
  		'string': [
  			{
  				// "string" and c"string"
  				pattern: /(^|[^\\@])c?"(?:[^"\\\r\n]|\\.)*"/,
  				lookbehind: true,
  				greedy: true
  			},
  			{
  				// multiline strings and c-strings
  				pattern: /([\r\n])([ \t]+c?\\{2}).*(?:(?:\r\n?|\n)\2.*)*/,
  				lookbehind: true,
  				greedy: true
  			},
  			{
  				// characters 'a', '\n', '\xFF', '\u{10FFFF}'
  				pattern: /(^|[^\\])'(?:[^'\\\r\n]|\\(?:.|x[a-fA-F\d]{2}|u\{[a-fA-F\d]{1,6}\}))'/,
  				lookbehind: true,
  				greedy: true
  			}
  		],
  		'builtin': /\B@(?!\d)\w+(?=\s*\()/,
  		'label': {
  			pattern: /(\b(?:break|continue)\s*:\s*)\w+\b|\b(?!\d)\w+\b(?=\s*:\s*(?:\{|while\b))/,
  			lookbehind: true
  		},
  		'class-name': [
  			// const Foo = struct {};
  			/\b(?!\d)\w+(?=\s*=\s*(?:(?:extern|packed)\s+)?(?:enum|struct|union)\s*[({])/,
  			{
  				// const x: i32 = 9;
  				// var x: Bar;
  				// fn foo(x: bool, y: f32) void {}
  				pattern: RegExp(/(:\s*)<TYPE>(?=\s*(?:<ALIGN>\s*)?[=;,)])|<TYPE>(?=\s*(?:<ALIGN>\s*)?\{)/.source.replace(/<TYPE>/g, literal(TYPE)).replace(/<ALIGN>/g, literal(ALIGN))),
  				lookbehind: true,
  				inside: null // see below
  			},
  			{
  				// extern fn foo(x: f64) f64; (optional alignment)
  				pattern: RegExp(/(\)\s*)<TYPE>(?=\s*(?:<ALIGN>\s*)?;)/.source.replace(/<TYPE>/g, literal(TYPE)).replace(/<ALIGN>/g, literal(ALIGN))),
  				lookbehind: true,
  				inside: null // see below
  			}
  		],
  		'builtin-types': {
  			pattern: /\b(?:anyerror|bool|c_u?(?:short|int|long|longlong)|c_longdouble|c_void|comptime_(?:float|int)|[iu](?:8|16|32|64|128|size)|f(?:16|32|64|128)|noreturn|type|void)\b/,
  			alias: 'keyword'
  		},
  		'keyword': keyword,
  		'function': /\b(?!\d)\w+(?=\s*\()/,
  		'number': /\b(?:0b[01]+|0o[0-7]+|0x[a-fA-F\d]+(?:\.[a-fA-F\d]*)?(?:[pP][+-]?[a-fA-F\d]+)?|\d+(?:\.\d*)?(?:[eE][+-]?\d+)?)\b/,
  		'boolean': /\b(?:false|true)\b/,
  		'operator': /\.[*?]|\.{2,3}|[-=]>|\*\*|\+\+|\|\||(?:<<|>>|[-+*]%|[-+*/%^&|<>!=])=?|[?~]/,
  		'punctuation': /[.:,;(){}[\]]/
  	};
  
  	Prism.languages.zig['class-name'].forEach(function (obj) {
  		if (obj.inside === null) {
  			obj.inside = Prism.languages.zig;
  		}
  	});
  
  }(Prism));
  

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