if (! this.sh_languages) {
  this.sh_languages = {};
}
sh_languages['tcl'] = [
  [
    [
      /#/g,
      'sh_comment',
      1
    ],
    [
      /\b[+-]?(?:(?:0x[A-Fa-f0-9]+)|(?:(?:[\d]*\.)?[\d]+(?:[eE][+-]?[\d]+)?))u?(?:(?:int(?:8|16|32|64))|L)?\b/g,
      'sh_number',
      -1
    ],
    [
      /"/g,
      'sh_string',
      2
    ],
    [
      /'/g,
      'sh_string',
      3
    ],
    [
      /~|!|%|\^|\*|\(|\)|-|\+|=|\[|\]|\\|:|;|,|\.|\/|\?|&|<|>|\|/g,
      'sh_symbol',
      -1
    ],
    [
      /\{|\}/g,
      'sh_cbracket',
      -1
    ],
    [
      /\b(?:proc|global|upvar|if|then|else|elseif|for|foreach|break|continue|while|set|eval|case|in|switch|default|exit|error|proc|return|uplevel|loop|for_array_keys|for_recursive_glob|for_file|unwind_protect|expr|catch|namespace|rename|variable|method|itcl_class|public|protected|append|binary|format|re_syntax|regexp|regsub|scan|string|subst|concat|join|lappend|lindex|list|llength|lrange|lreplace|lsearch|lset|lsort|split|expr|incr|close|eof|fblocked|fconfigure|fcopy|file|fileevent|flush|gets|open|puts|read|seek|socket|tell|load|loadTk|package|pgk::create|pgk_mkIndex|source|bgerror|history|info|interp|memory|unknown|enconding|http|msgcat|cd|clock|exec|exit|glob|pid|pwd|time|dde|registry|resource)\b/g,
      'sh_keyword',
      -1
    ],
    [
      /\$[A-Za-z0-9_]+/g,
      'sh_variable',
      -1
    ]
  ],
  [
    [
      /$/g,
      null,
      -2
    ]
  ],
  [
    [
      /"/g,
      'sh_string',
      -2
    ],
    [
      /\\./g,
      'sh_specialchar',
      -1
    ]
  ],
  [
    [
      /'/g,
      'sh_string',
      -2
    ],
    [
      /\\./g,
      'sh_specialchar',
      -1
    ]
  ]
];