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Direktori : /proc/thread-self/root/lib/python2.7/site-packages/chardet/ |
Current File : //proc/thread-self/root/lib/python2.7/site-packages/chardet/charsetgroupprober.py |
######################## BEGIN LICENSE BLOCK ######################## # The Original Code is Mozilla Communicator client code. # # The Initial Developer of the Original Code is # Netscape Communications Corporation. # Portions created by the Initial Developer are Copyright (C) 1998 # the Initial Developer. All Rights Reserved. # # Contributor(s): # Mark Pilgrim - port to Python # # 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 sys from .charsetprober import CharSetProber class CharSetGroupProber(CharSetProber): def __init__(self): CharSetProber.__init__(self) self._mActiveNum = 0 self._mProbers = [] self._mBestGuessProber = None def reset(self): CharSetProber.reset(self) self._mActiveNum = 0 for prober in self._mProbers: if prober: prober.reset() prober.active = True self._mActiveNum += 1 self._mBestGuessProber = None def get_charset_name(self): if not self._mBestGuessProber: self.get_confidence() if not self._mBestGuessProber: return None # self._mBestGuessProber = self._mProbers[0] return self._mBestGuessProber.get_charset_name() def feed(self, aBuf): for prober in self._mProbers: if not prober: continue if not prober.active: continue st = prober.feed(aBuf) if not st: continue if st == constants.eFoundIt: self._mBestGuessProber = prober return self.get_state() elif st == constants.eNotMe: prober.active = False self._mActiveNum -= 1 if self._mActiveNum <= 0: self._mState = constants.eNotMe return self.get_state() return self.get_state() def get_confidence(self): st = self.get_state() if st == constants.eFoundIt: return 0.99 elif st == constants.eNotMe: return 0.01 bestConf = 0.0 self._mBestGuessProber = None for prober in self._mProbers: if not prober: continue if not prober.active: if constants._debug: sys.stderr.write(prober.get_charset_name() + ' not active\n') continue cf = prober.get_confidence() if constants._debug: sys.stderr.write('%s confidence = %s\n' % (prober.get_charset_name(), cf)) if bestConf < cf: bestConf = cf self._mBestGuessProber = prober if not self._mBestGuessProber: return 0.0 return bestConf # else: # self._mBestGuessProber = self._mProbers[0] # return self._mBestGuessProber.get_confidence()