static/highlight/languages/json.js

   1 /*! `json` grammar compiled for Highlight.js 11.11.1 */
   2   (function(){
   3     var hljsGrammar = (function () {
   4   'use strict';
   5
   6   /*
   7   Language: JSON
   8   Description: JSON (JavaScript Object Notation) is a lightweight data-interchange format.
   9   Author: Ivan Sagalaev <maniac@softwaremaniacs.org>
  10   Website: http://www.json.org
  11   Category: common, protocols, web
  12   */
  13
  14   function json(hljs) {
  15     const ATTRIBUTE = {
  16       className: 'attr',
  17       begin: /"(\\.|[^\\"\r\n])*"(?=\s*:)/,
  18       relevance: 1.01
  19     };
  20     const PUNCTUATION = {
  21       match: /[{}[\],:]/,
  22       className: "punctuation",
  23       relevance: 0
  24     };
  25     const LITERALS = [
  26       "true",
  27       "false",
  28       "null"
  29     ];
  30     // NOTE: normally we would rely on `keywords` for this but using a mode here allows us
  31     // - to use the very tight `illegal: \S` rule later to flag any other character
  32     // - as illegal indicating that despite looking like JSON we do not truly have
  33     // - JSON and thus improve false-positively greatly since JSON will try and claim
  34     // - all sorts of JSON looking stuff
  35     const LITERALS_MODE = {
  36       scope: "literal",
  37       beginKeywords: LITERALS.join(" "),
  38     };
  39
  40     return {
  41       name: 'JSON',
  42       aliases: ['jsonc'],
  43       keywords:{
  44         literal: LITERALS,
  45       },
  46       contains: [
  47         ATTRIBUTE,
  48         PUNCTUATION,
  49         hljs.QUOTE_STRING_MODE,
  50         LITERALS_MODE,
  51         hljs.C_NUMBER_MODE,
  52         hljs.C_LINE_COMMENT_MODE,
  53         hljs.C_BLOCK_COMMENT_MODE
  54       ],
  55       illegal: '\\S'
  56     };
  57   }
  58
  59   return json;
  60
  61 })();
  62
  63     hljs.registerLanguage('json', hljsGrammar);
  64   })();