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######################## BEGIN LICENSE BLOCK ######################## # The Original Code is mozilla.org 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 from .escsm import (HZSMModel, ISO2022CNSMModel, ISO2022JPSMModel, ISO2022KRSMModel) from .charsetprober import CharSetProber from .codingstatemachine import CodingStateMachine from .compat import wrap_ord class EscCharSetProber(CharSetProber): def __init__(self): CharSetProber.__init__(self) self._mCodingSM = [ CodingStateMachine(HZSMModel), CodingStateMachine(ISO2022CNSMModel), CodingStateMachine(ISO2022JPSMModel), CodingStateMachine(ISO2022KRSMModel) ] self.reset() def reset(self): CharSetProber.reset(self) for codingSM in self._mCodingSM: if not codingSM: continue codingSM.active = True codingSM.reset() self._mActiveSM = len(self._mCodingSM) self._mDetectedCharset = None def get_charset_name(self): return self._mDetectedCharset def get_confidence(self): if self._mDetectedCharset: return 0.99 else: return 0.00 def feed(self, aBuf): for c in aBuf: # PY3K: aBuf is a byte array, so c is an int, not a byte for codingSM in self._mCodingSM: if not codingSM: continue if not codingSM.active: continue codingState = codingSM.next_state(wrap_ord(c)) if codingState == constants.eError: codingSM.active = False self._mActiveSM -= 1 if self._mActiveSM <= 0: self._mState = constants.eNotMe return self.get_state() elif codingState == constants.eItsMe: self._mState = constants.eFoundIt self._mDetectedCharset = codingSM.get_coding_state_machine() # nopep8 return self.get_state() return self.get_state()