mirror of
https://github.com/qgis/QGIS.git
synced 2025-10-31 00:06:02 -04:00
101 lines
3.0 KiB
Python
101 lines
3.0 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
pygments.lexers.special
|
|
~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Special lexers.
|
|
|
|
:copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
|
|
:license: BSD, see LICENSE for details.
|
|
"""
|
|
|
|
import re
|
|
|
|
from pygments.lexer import Lexer
|
|
from pygments.token import Token, Error, Text
|
|
from pygments.util import get_choice_opt, text_type, BytesIO
|
|
|
|
|
|
__all__ = ['TextLexer', 'RawTokenLexer']
|
|
|
|
|
|
class TextLexer(Lexer):
|
|
"""
|
|
"Null" lexer, doesn't highlight anything.
|
|
"""
|
|
name = 'Text only'
|
|
aliases = ['text']
|
|
filenames = ['*.txt']
|
|
mimetypes = ['text/plain']
|
|
|
|
def get_tokens_unprocessed(self, text):
|
|
yield 0, Text, text
|
|
|
|
|
|
_ttype_cache = {}
|
|
|
|
line_re = re.compile(b'.*?\n')
|
|
|
|
|
|
class RawTokenLexer(Lexer):
|
|
"""
|
|
Recreate a token stream formatted with the `RawTokenFormatter`. This
|
|
lexer raises exceptions during parsing if the token stream in the
|
|
file is malformed.
|
|
|
|
Additional options accepted:
|
|
|
|
`compress`
|
|
If set to ``"gz"`` or ``"bz2"``, decompress the token stream with
|
|
the given compression algorithm before lexing (default: ``""``).
|
|
"""
|
|
name = 'Raw token data'
|
|
aliases = ['raw']
|
|
filenames = []
|
|
mimetypes = ['application/x-pygments-tokens']
|
|
|
|
def __init__(self, **options):
|
|
self.compress = get_choice_opt(options, 'compress',
|
|
['', 'none', 'gz', 'bz2'], '')
|
|
Lexer.__init__(self, **options)
|
|
|
|
def get_tokens(self, text):
|
|
if isinstance(text, text_type):
|
|
# raw token stream never has any non-ASCII characters
|
|
text = text.encode('ascii')
|
|
if self.compress == 'gz':
|
|
import gzip
|
|
gzipfile = gzip.GzipFile('', 'rb', 9, BytesIO(text))
|
|
text = gzipfile.read()
|
|
elif self.compress == 'bz2':
|
|
import bz2
|
|
text = bz2.decompress(text)
|
|
|
|
# do not call Lexer.get_tokens() because we do not want Unicode
|
|
# decoding to occur, and stripping is not optional.
|
|
text = text.strip(b'\n') + b'\n'
|
|
for i, t, v in self.get_tokens_unprocessed(text):
|
|
yield t, v
|
|
|
|
def get_tokens_unprocessed(self, text):
|
|
length = 0
|
|
for match in line_re.finditer(text):
|
|
try:
|
|
ttypestr, val = match.group().split(b'\t', 1)
|
|
except ValueError:
|
|
val = match.group().decode('ascii', 'replace')
|
|
ttype = Error
|
|
else:
|
|
ttype = _ttype_cache.get(ttypestr)
|
|
if not ttype:
|
|
ttype = Token
|
|
ttypes = ttypestr.split('.')[1:]
|
|
for ttype_ in ttypes:
|
|
if not ttype_ or not ttype_[0].isupper():
|
|
raise ValueError('malformed token name')
|
|
ttype = getattr(ttype, ttype_)
|
|
_ttype_cache[ttypestr] = ttype
|
|
val = val[2:-2].decode('unicode-escape')
|
|
yield length, ttype, val
|
|
length += len(val)
|