(function(Prism) {
  Prism.languages.pure = {
    comment: [
      {
        pattern: /(^|[^\\])\/\*[\s\S]*?\*\//,
        lookbehind: true,
      },
      {
        pattern: /(^|[^\\:])\/\/.*/,
        lookbehind: true,
      },
      /#!.+/,
    ],
    'inline-lang': {
      pattern: /%<[\s\S]+?%>/,
      greedy: true,
      inside: {
        lang: {
          pattern: /(^%< *)-\*-.+?-\*-/,
          lookbehind: true,
          alias: 'comment',
        },
        delimiter: {
          pattern: /^%<.*|%>$/,
          alias: 'punctuation',
        },
      },
    },
    string: {
      pattern: /"(?:\\.|[^"\\\r\n])*"/,
      greedy: true,
    },
    number: {
      // The look-behind prevents wrong highlighting of the .. operator
      pattern: /((?:\.\.)?)(?:\b(?:inf|nan)\b|\b0x[\da-f]+|(?:\b(?:0b)?\d+(?:\.\d)?|\B\.\d)\d*(?:e[+-]?\d+)?L?)/i,
      lookbehind: true,
    },
    keyword: /\b(?:ans|break|bt|case|catch|cd|clear|const|def|del|dump|else|end|exit|extern|false|force|help|if|infix[lr]?|interface|let|ls|mem|namespace|nonfix|NULL|of|otherwise|outfix|override|postfix|prefix|private|public|pwd|quit|run|save|show|stats|then|throw|trace|true|type|underride|using|when|with)\b/,
    function: /\b(?:abs|add_(?:(?:fundef|interface|macdef|typedef)(?:_at)?|addr|constdef|vardef)|all|any|applp?|arity|bigintp?|blob(?:_crc|_size|p)?|boolp?|byte_(?:matrix|pointer)|byte_c?string(?:_pointer)?|calloc|cat|catmap|ceil|char[ps]?|check_ptrtag|chr|clear_sentry|clearsym|closurep?|cmatrixp?|cols?|colcat(?:map)?|colmap|colrev|colvector(?:p|seq)?|complex(?:_float_(?:matrix|pointer)|_matrix(?:_view)?|_pointer|p)?|conj|cookedp?|cst|cstring(?:_(?:dup|list|vector))?|curry3?|cyclen?|del_(?:constdef|fundef|interface|macdef|typedef|vardef)|delete|diag(?:mat)?|dim|dmatrixp?|do|double(?:_matrix(?:_view)?|_pointer|p)?|dowith3?|drop|dropwhile|eval(?:cmd)?|exactp|filter|fix|fixity|flip|float(?:_matrix|_pointer)|floor|fold[lr]1?|frac|free|funp?|functionp?|gcd|get(?:_(?:byte|constdef|double|float|fundef|int(?:64)?|interface(?:_typedef)?|long|macdef|pointer|ptrtag|short|sentry|string|typedef|vardef))?|globsym|hash|head|id|im|imatrixp?|index|inexactp|infp|init|insert|int(?:_matrix(?:_view)?|_pointer|p)?|int64_(?:matrix|pointer)|integerp?|iteraten?|iterwhile|join|keys?|lambdap?|last(?:err(?:pos)?)?|lcd|list[2p]?|listmap|make_ptrtag|malloc|map|matcat|matrixp?|max|member|min|nanp|nargs|nmatrixp?|null|numberp?|ord|pack(?:ed)?|pointer(?:_cast|_tag|_type|p)?|pow|pred|ptrtag|put(?:_(?:byte|double|float|int(?:64)?|long|pointer|short|string))?|rationalp?|re|realp?|realloc|recordp?|redim|reduce(?:_with)?|refp?|repeatn?|reverse|rlistp?|round|rows?|rowcat(?:map)?|rowmap|rowrev|rowvector(?:p|seq)?|same|scan[lr]1?|sentry|sgn|short_(?:matrix|pointer)|slice|smatrixp?|sort|split|str|strcat|stream|stride|string(?:_(?:dup|list|vector)|p)?|subdiag(?:mat)?|submat|subseq2?|substr|succ|supdiag(?:mat)?|symbolp?|tail|take|takewhile|thunkp?|transpose|trunc|tuplep?|typep|ubyte|uint(?:64)?|ulong|uncurry3?|unref|unzip3?|update|ushort|vals?|varp?|vector(?:p|seq)?|void|zip3?|zipwith3?)\b/,
    special: {
      pattern: /\b__[a-z]+__\b/i,
      alias: 'builtin',
    },
    // Any combination of operator chars can be an operator
    operator: /(?=\b_|[^_])[!"#$%&'*+,\-.\/:<=>?@\\^_`|~\u00a1-\u00bf\u00d7-\u00f7\u20d0-\u2bff]+|\b(?:and|div|mod|not|or)\b/,
    // FIXME: How can we prevent | and , to be highlighted as operator when they are used alone?
    punctuation: /[(){}\[\];,|]/,
  };

  var inlineLanguages = [
    'c',
    { lang: 'c++', alias: 'cpp' },
    'fortran',
    'ats',
    'dsp',
  ];
  var inlineLanguageRe = '%< *-\\*- *{lang}\\d* *-\\*-[\\s\\S]+?%>';

  inlineLanguages.forEach(function(lang) {
    var alias = lang;
    if (typeof lang !== 'string') {
      alias = lang.alias;
      lang = lang.lang;
    }
    if (Prism.languages[alias]) {
      var o = {};
      o['inline-lang-' + alias] = {
        pattern: RegExp(
          inlineLanguageRe.replace(
            '{lang}',
            lang.replace(/([.+*?\/\\(){}\[\]])/g, '\\$1')
          ),
          'i'
        ),
        inside: Prism.util.clone(Prism.languages.pure['inline-lang'].inside),
      };
      o['inline-lang-' + alias].inside.rest = Prism.util.clone(
        Prism.languages[alias]
      );
      Prism.languages.insertBefore('pure', 'inline-lang', o);
    }
  });

  // C is the default inline language
  if (Prism.languages.c) {
    Prism.languages.pure['inline-lang'].inside.rest = Prism.util.clone(
      Prism.languages.c
    );
  }
})(Prism);
