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# -*- coding: utf-8 -*-
"""
pygments.lexers.special
~~~~~~~~~~~~~~~~~~~~~~~
Special lexers.
:copyright: 2006 by Georg Brandl.
:license: GNU LGPL, see LICENSE for more details.
"""
import re
import cStringIO
from pygments.lexer import Lexer, RegexLexer
from pygments.token import Token, \
Text, Comment, Operator, Keyword, Name, String, Number
__all__ = ['TextLexer', 'RawTokenLexer']
class TextLexer(Lexer):
name = 'Text only'
aliases = ['text']
filenames = ['*.txt']
def get_tokens_unprocessed(self, text):
yield 0, Text, text
_ttype_cache = {}
line_re = re.compile('.*?\n')
class RawTokenLexer(Lexer):
"""
Recreate a token stream formatted with the RawTokenFormatter.
Additional options accepted:
``compress``
If set to "gz" or "bz2", decompress the token stream with
the given compression algorithm (default: '').
"""
name = 'Raw token data'
aliases = ['raw']
filenames = ['*.raw']
def __init__(self, **options):
self.compress = options.get('compress', '')
Lexer.__init__(self, **options)
def get_tokens(self, text):
if self.compress == 'gz':
import gzip
gzipfile = gzip.GzipFile('', 'rb', 9, cStringIO.StringIO(text))
text = gzipfile.read()
elif self.compress == 'bz2':
import bz2
text = bz2.decompress(text)
return Lexer.get_tokens(self, text)
def get_tokens_unprocessed(self, text):
length = 0
for match in line_re.finditer(text):
ttypestr, val = match.group().split('\t', 1)
ttype = _ttype_cache.get(ttypestr)
if not ttype:
ttype = Token
ttypes = ttypestr.split('.')[1:]
for ttype_ in ttypes:
ttype = getattr(ttype, ttype_)
_ttype_cache[ttypestr] = ttype
val = val[1:-2].decode('string-escape')
yield length, ttype, val
length += len(val)
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