pygments lexer for fish scripts

fish_lexer.py

import sys
from pygments import highlight
from pygments.lexer import RegexLexer, bygroups, include
from pygments.token import *
from pygments.formatters import *

class FishLexer(RegexLexer):
  name = 'Fish'
  aliases = 'fish'
  filenames = ['*.fish']
  mimetypes = ['application/x-fish', 'application/x-shellscript']

  tokens = {
    'root': [
      include('basic'),
      (r'\(', Keyword, 'paren'),
      include('data'),

    ],
    'basic': [
      (r'\b(if|else|while|end|return|function|switch|case|continue|not|and|or|break|for)\s*\b',
       Keyword),
      (r'\b(alias|begin|bg|bind|block|breakpoint|break|builtin|cd|commandline|'
       r'command|complete|contains|count|dirh|dirs|echo|emit|eval|exec|exit|fg|'
       r'fishd|fish_indent|fish_pager|fish_prompt|fish|funced|funcsave|'
       r'functions|help|isatty|jobs|math|mimedb|nextd|not|open|popd|prevd|'
       r'psub|pushd|random|read|set_color|set|.|status|trap|type|ulimit|umask|'
       r'vared)\s*\b',
       Name.Builtin),
      (r'#.*\n', Comment),
      (r'\\[\w\W]', String.Escape),
      (r'[\[\]{}=]+', Operator),
      (r'<<\s*(\'?)\\?(\w+)[\w\W]+?\2', String),
    ],
    'data': [
      (r'"(\\\\|\\[0-7]+|\\.|[^"])*"', String.Double),
      (r"'(\\\\|\\[0-7]+|\\.|[^'])*'", String.Single),
      (r'\s+', Text),
      (r'[^=\s\n\[\]{}()$"\'`\\]+', Text),
      (r'\d+(?= |\Z)', Number),
      (r'\$#?(\w+|.)', Name.Variable),
    ],
    'paren': [
      (r'\)', Keyword, '#pop'),
      include('root'),
    ],
  }

code = sys.stdin.read()

# for token in FishLexer().get_tokens(code):
#   print token

print highlight(code, FishLexer(), TerminalFormatter())