static/highlight/es/languages/ebnf.js

   1 /*! `ebnf` grammar compiled for Highlight.js 11.11.1 */
   2 var hljsGrammar = (function () {
   3   'use strict';
   4
   5   /*
   6   Language: Extended Backus-Naur Form
   7   Author: Alex McKibben <alex@nullscope.net>
   8   Website: https://en.wikipedia.org/wiki/Extended_Backus–Naur_form
   9   Category: syntax
  10   */
  11
  12   /** @type LanguageFn */
  13   function ebnf(hljs) {
  14     const commentMode = hljs.COMMENT(/\(\*/, /\*\)/);
  15
  16     const nonTerminalMode = {
  17       className: "attribute",
  18       begin: /^[ ]*[a-zA-Z]+([\s_-]+[a-zA-Z]+)*/
  19     };
  20
  21     const specialSequenceMode = {
  22       className: "meta",
  23       begin: /\?.*\?/
  24     };
  25
  26     const ruleBodyMode = {
  27       begin: /=/,
  28       end: /[.;]/,
  29       contains: [
  30         commentMode,
  31         specialSequenceMode,
  32         {
  33           // terminals
  34           className: 'string',
  35           variants: [
  36             hljs.APOS_STRING_MODE,
  37             hljs.QUOTE_STRING_MODE,
  38             {
  39               begin: '`',
  40               end: '`'
  41             }
  42           ]
  43         }
  44       ]
  45     };
  46
  47     return {
  48       name: 'Extended Backus-Naur Form',
  49       illegal: /\S/,
  50       contains: [
  51         commentMode,
  52         nonTerminalMode,
  53         ruleBodyMode
  54       ]
  55     };
  56   }
  57
  58   return ebnf;
  59
  60 })();
  61 ;
  62 export default hljsGrammar;