mirror of
https://github.com/janeczku/calibre-web
synced 2024-12-29 11:30:31 +00:00
63 lines
1.9 KiB
Python
63 lines
1.9 KiB
Python
|
######################## BEGIN LICENSE BLOCK ########################
|
||
|
|
# The Original Code is Mozilla Universal charset detector code.
|
||
|
|
#
|
||
|
|
# The Initial Developer of the Original Code is
|
||
|
|
# Netscape Communications Corporation.
|
||
|
|
# Portions created by the Initial Developer are Copyright (C) 2001
|
||
|
|
# the Initial Developer. All Rights Reserved.
|
||
|
|
#
|
||
|
|
# Contributor(s):
|
||
|
|
# Mark Pilgrim - port to Python
|
||
|
|
# Shy Shalom - original C code
|
||
|
|
#
|
||
|
|
# This library is free software; you can redistribute it and/or
|
||
|
|
# modify it under the terms of the GNU Lesser General Public
|
||
|
|
# License as published by the Free Software Foundation; either
|
||
|
|
# version 2.1 of the License, or (at your option) any later version.
|
||
|
|
#
|
||
|
|
# This library is distributed in the hope that it will be useful,
|
||
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
# Lesser General Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU Lesser General Public
|
||
|
|
# License along with this library; if not, write to the Free Software
|
||
|
|
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
|
||
|
|
# 02110-1301 USA
|
||
|
|
######################### END LICENSE BLOCK #########################
|
||
|
|
|
||
|
|
from . import constants
|
||
|
|
import re
|
||
|
|
|
||
|
|
|
||
|
|
class CharSetProber:
|
||
|
|
def __init__(self):
|
||
|
|
pass
|
||
|
|
|
||
|
|
def reset(self):
|
||
|
|
self._mState = constants.eDetecting
|
||
|
|
|
||
|
|
def get_charset_name(self):
|
||
|
|
return None
|
||
|
|
|
||
|
|
def feed(self, aBuf):
|
||
|
|
pass
|
||
|
|
|
||
|
|
def get_state(self):
|
||
|
|
return self._mState
|
||
|
|
|
||
|
|
def get_confidence(self):
|
||
|
|
return 0.0
|
||
|
|
|
||
|
|
def filter_high_bit_only(self, aBuf):
|
||
|
|
aBuf = re.sub(b'([\x00-\x7F])+', b' ', aBuf)
|
||
|
|
return aBuf
|
||
|
|
|
||
|
|
def filter_without_english_letters(self, aBuf):
|
||
|
|
aBuf = re.sub(b'([A-Za-z])+', b' ', aBuf)
|
||
|
|
return aBuf
|
||
|
|
|
||
|
|
def filter_with_english_letters(self, aBuf):
|
||
|
|
# TODO
|
||
|
|
return aBuf
|