(function (Prism) {
  var key = /(?:[\w-]+|'[^'\n\r]*'|"(?:\\.|[^\\"\r\n])*")/.source;

  /**
   * @param {string} pattern
   */
  function insertKey(pattern) {
    return pattern.replace(/__/g, function () {
      return key;
    });
  }

  Prism.languages.toml = {
    comment: {
      pattern: /#.*/,
      greedy: true,
    },
    table: {
      pattern: RegExp(
        insertKey(/(^[\t ]*\[\s*(?:\[\s*)?)__(?:\s*\.\s*__)*(?=\s*\])/.source),
        'm'
      ),
      lookbehind: true,
      greedy: true,
      alias: 'class-name',
    },
    key: {
      pattern: RegExp(
        insertKey(/(^[\t ]*|[{,]\s*)__(?:\s*\.\s*__)*(?=\s*=)/.source),
        'm'
      ),
      lookbehind: true,
      greedy: true,
      alias: 'property',
    },
    string: {
      pattern:
        /"""(?:\\[\s\S]|[^\\])*?"""|'''[\s\S]*?'''|'[^'\n\r]*'|"(?:\\.|[^\\"\r\n])*"/,
      greedy: true,
    },
    date: [
      {
        // Offset Date-Time, Local Date-Time, Local Date
        pattern:
          /\b\d{4}-\d{2}-\d{2}(?:[T\s]\d{2}:\d{2}:\d{2}(?:\.\d+)?(?:Z|[+-]\d{2}:\d{2})?)?\b/i,
        alias: 'number',
      },
      {
        // Local Time
        pattern: /\b\d{2}:\d{2}:\d{2}(?:\.\d+)?\b/,
        alias: 'number',
      },
    ],
    number:
      /(?:\b0(?:x[\da-zA-Z]+(?:_[\da-zA-Z]+)*|o[0-7]+(?:_[0-7]+)*|b[10]+(?:_[10]+)*))\b|[-+]?\b\d+(?:_\d+)*(?:\.\d+(?:_\d+)*)?(?:[eE][+-]?\d+(?:_\d+)*)?\b|[-+]?\b(?:inf|nan)\b/,
    boolean: /\b(?:false|true)\b/,
    punctuation: /[.,=[\]{}]/,
  };
})(Prism);