'use strict'
var refractorRuby = require('./ruby.js')
module.exports = crystal
crystal.displayName = 'crystal'
crystal.aliases = []
function crystal(Prism) {
  Prism.register(refractorRuby)
  ;(function (Prism) {
    Prism.languages.crystal = Prism.languages.extend('ruby', {
      keyword: [
        /\b(?:__DIR__|__END_LINE__|__FILE__|__LINE__|abstract|alias|annotation|as|asm|begin|break|case|class|def|do|else|elsif|end|ensure|enum|extend|for|fun|if|ifdef|include|instance_sizeof|lib|macro|module|next|of|out|pointerof|private|protected|ptr|require|rescue|return|select|self|sizeof|struct|super|then|type|typeof|undef|uninitialized|union|unless|until|when|while|with|yield)\b/,
        {
          pattern: /(\.\s*)(?:is_a|responds_to)\?/,
          lookbehind: true
        }
      ],
      number:
        /\b(?:0b[01_]*[01]|0o[0-7_]*[0-7]|0x[\da-fA-F_]*[\da-fA-F]|(?:\d(?:[\d_]*\d)?)(?:\.[\d_]*\d)?(?:[eE][+-]?[\d_]*\d)?)(?:_(?:[uif](?:8|16|32|64))?)?\b/,
      operator: [/->/, Prism.languages.ruby.operator],
      punctuation: /[(){}[\].,;\\]/
    })
    Prism.languages.insertBefore('crystal', 'string-literal', {
      attribute: {
        pattern: /@\[.*?\]/,
        inside: {
          delimiter: {
            pattern: /^@\[|\]$/,
            alias: 'punctuation'
          },
          attribute: {
            pattern: /^(\s*)\w+/,
            lookbehind: true,
            alias: 'class-name'
          },
          args: {
            pattern: /\S(?:[\s\S]*\S)?/,
            inside: Prism.languages.crystal
          }
        }
      },
      expansion: {
        pattern: /\{(?:\{.*?\}|%.*?%)\}/,
        inside: {
          content: {
            pattern: /^(\{.)[\s\S]+(?=.\}$)/,
            lookbehind: true,
            inside: Prism.languages.crystal
          },
          delimiter: {
            pattern: /^\{[\{%]|[\}%]\}$/,
            alias: 'operator'
          }
        }
      },
      char: {
        pattern:
          /'(?:[^\\\r\n]{1,2}|\\(?:.|u(?:[A-Fa-f0-9]{1,4}|\{[A-Fa-f0-9]{1,6}\})))'/,
        greedy: true
      }
    })
  })(Prism)
}