Ticket/InsdepUI/plugin/highlight-9.9.0/src/languages/crystal.js

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/*
Language: Crystal
Author: TSUYUSATO Kitsune <make.just.on@gmail.com>
*/

function(hljs) {
  var NUM_SUFFIX = '(_[uif](8|16|32|64))?';
  var CRYSTAL_IDENT_RE = '[a-zA-Z_]\\w*[!?=]?';
  var RE_STARTER = '!=|!==|%|%=|&|&&|&=|\\*|\\*=|\\+|\\+=|,|-|-=|/=|/|:|;|<<|<<=|<=|<|===|==|=|>>>=|>>=|>=|>>>|' +
    '>>|>|\\[|\\{|\\(|\\^|\\^=|\\||\\|=|\\|\\||~';
  var CRYSTAL_METHOD_RE = '[a-zA-Z_]\\w*[!?=]?|[-+~]\\@|<<|>>|=~|===?|<=>|[<>]=?|\\*\\*|[-/+%^&*~`|]|\\[\\][=?]?';
  var CRYSTAL_KEYWORDS = {
    keyword:
      'abstract alias as asm begin break case class def do else elsif end ensure enum extend for fun if ifdef ' +
      'include instance_sizeof is_a? lib macro module next of out pointerof private protected rescue responds_to? ' +
      'return require self sizeof struct super then type typeof union unless until when while with yield ' +
      '__DIR__ __FILE__ __LINE__',
    literal: 'false nil true'
  };
  var SUBST = {
    className: 'subst',
    begin: '#{', end: '}',
    keywords: CRYSTAL_KEYWORDS
  };
  var EXPANSION = {
    className: 'template-variable',
    variants: [
      {begin: '\\{\\{', end: '\\}\\}'},
      {begin: '\\{%', end: '%\\}'}
    ],
    keywords: CRYSTAL_KEYWORDS
  };

  function recursiveParen(begin, end) {
    var
    contains = [{begin: begin, end: end}];
    contains[0].contains = contains;
    return contains;
  }
  var STRING = {
    className: 'string',
    contains: [hljs.BACKSLASH_ESCAPE, SUBST],
    variants: [
      {begin: /'/, end: /'/},
      {begin: /"/, end: /"/},
      {begin: /`/, end: /`/},
      {begin: '%w?\\(', end: '\\)', contains: recursiveParen('\\(', '\\)')},
      {begin: '%w?\\[', end: '\\]', contains: recursiveParen('\\[', '\\]')},
      {begin: '%w?{', end: '}', contains: recursiveParen('{', '}')},
      {begin: '%w?<', end: '>', contains: recursiveParen('<', '>')},
      {begin: '%w?/', end: '/'},
      {begin: '%w?%', end: '%'},
      {begin: '%w?-', end: '-'},
      {begin: '%w?\\|', end: '\\|'},
    ],
    relevance: 0,
  };
  var REGEXP = {
    begin: '(' + RE_STARTER + ')\\s*',
    contains: [