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97 lines
3.5 KiB
Python
97 lines
3.5 KiB
Python
######################## BEGIN LICENSE BLOCK ########################
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# The Original Code is Mozilla Communicator client code.
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#
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# The Initial Developer of the Original Code is
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# Netscape Communications Corporation.
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# Portions created by the Initial Developer are Copyright (C) 1998
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Mark Pilgrim - port to Python
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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# 02110-1301 USA
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######################### END LICENSE BLOCK #########################
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import constants, sys
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from charsetprober import CharSetProber
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class CharSetGroupProber(CharSetProber):
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def __init__(self):
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CharSetProber.__init__(self)
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self._mActiveNum = 0
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self._mProbers = []
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self._mBestGuessProber = None
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def reset(self):
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CharSetProber.reset(self)
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self._mActiveNum = 0
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for prober in self._mProbers:
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if prober:
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prober.reset()
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prober.active = constants.True
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self._mActiveNum += 1
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self._mBestGuessProber = None
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def get_charset_name(self):
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if not self._mBestGuessProber:
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self.get_confidence()
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if not self._mBestGuessProber: return None
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# self._mBestGuessProber = self._mProbers[0]
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return self._mBestGuessProber.get_charset_name()
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def feed(self, aBuf):
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for prober in self._mProbers:
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if not prober: continue
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if not prober.active: continue
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st = prober.feed(aBuf)
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if not st: continue
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if st == constants.eFoundIt:
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self._mBestGuessProber = prober
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return self.get_state()
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elif st == constants.eNotMe:
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prober.active = constants.False
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self._mActiveNum -= 1
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if self._mActiveNum <= 0:
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self._mState = constants.eNotMe
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return self.get_state()
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return self.get_state()
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def get_confidence(self):
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st = self.get_state()
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if st == constants.eFoundIt:
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return 0.99
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elif st == constants.eNotMe:
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return 0.01
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bestConf = 0.0
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self._mBestGuessProber = None
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for prober in self._mProbers:
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if not prober: continue
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if not prober.active:
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if constants._debug:
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sys.stderr.write(prober.get_charset_name() + ' not active\n')
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continue
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cf = prober.get_confidence()
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if constants._debug:
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sys.stderr.write('%s confidence = %s\n' % (prober.get_charset_name(), cf))
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if bestConf < cf:
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bestConf = cf
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self._mBestGuessProber = prober
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if not self._mBestGuessProber: return 0.0
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return bestConf
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# else:
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# self._mBestGuessProber = self._mProbers[0]
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# return self._mBestGuessProber.get_confidence()
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