Mercurial > repos > bcclaywell > argo_navis

annotate venv/lib/python2.7/site-packages/requests/packages/chardet/charsetgroupprober.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 ######################## BEGIN LICENSE BLOCK ########################
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2 # The Original Code is Mozilla Communicator client code.
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3 #
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4 # The Initial Developer of the Original Code is
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5 # Netscape Communications Corporation.
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6 # Portions created by the Initial Developer are Copyright (C) 1998
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7 # the Initial Developer. All Rights Reserved.
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8 #
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9 # Contributor(s):
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10 # Mark Pilgrim - port to Python
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11 #
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12 # This library is free software; you can redistribute it and/or
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13 # modify it under the terms of the GNU Lesser General Public
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14 # License as published by the Free Software Foundation; either
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15 # version 2.1 of the License, or (at your option) any later version.
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16 #
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17 # This library is distributed in the hope that it will be useful,
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18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 # Lesser General Public License for more details.
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21 #
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22 # You should have received a copy of the GNU Lesser General Public
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23 # License along with this library; if not, write to the Free Software
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24 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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25 # 02110-1301 USA
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26 ######################### END LICENSE BLOCK #########################
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27
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28 from . import constants
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29 import sys
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30 from .charsetprober import CharSetProber
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31
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32
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33 class CharSetGroupProber(CharSetProber):
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34 def __init__(self):
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35 CharSetProber.__init__(self)
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36 self._mActiveNum = 0
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37 self._mProbers = []
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38 self._mBestGuessProber = None
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39
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40 def reset(self):
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41 CharSetProber.reset(self)
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42 self._mActiveNum = 0
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43 for prober in self._mProbers:
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44 if prober:
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45 prober.reset()
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46 prober.active = True
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47 self._mActiveNum += 1
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48 self._mBestGuessProber = None
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49
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50 def get_charset_name(self):
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51 if not self._mBestGuessProber:
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52 self.get_confidence()
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53 if not self._mBestGuessProber:
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54 return None
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55 # self._mBestGuessProber = self._mProbers[0]
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56 return self._mBestGuessProber.get_charset_name()
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57
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58 def feed(self, aBuf):
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59 for prober in self._mProbers:
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60 if not prober:
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61 continue
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62 if not prober.active:
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63 continue
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64 st = prober.feed(aBuf)
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65 if not st:
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66 continue
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67 if st == constants.eFoundIt:
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68 self._mBestGuessProber = prober
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69 return self.get_state()
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70 elif st == constants.eNotMe:
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71 prober.active = False
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72 self._mActiveNum -= 1
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73 if self._mActiveNum <= 0:
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74 self._mState = constants.eNotMe
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75 return self.get_state()
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76 return self.get_state()
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77
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78 def get_confidence(self):
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79 st = self.get_state()
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80 if st == constants.eFoundIt:
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81 return 0.99
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82 elif st == constants.eNotMe:
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83 return 0.01
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84 bestConf = 0.0
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85 self._mBestGuessProber = None
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86 for prober in self._mProbers:
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87 if not prober:
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88 continue
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89 if not prober.active:
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90 if constants._debug:
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91 sys.stderr.write(prober.get_charset_name()
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92 + ' not active\n')
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93 continue
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94 cf = prober.get_confidence()
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95 if constants._debug:
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96 sys.stderr.write('%s confidence = %s\n' %
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97 (prober.get_charset_name(), cf))
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98 if bestConf < cf:
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99 bestConf = cf
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100 self._mBestGuessProber = prober
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101 if not self._mBestGuessProber:
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102 return 0.0
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103 return bestConf
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104 # else:
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105 # self._mBestGuessProber = self._mProbers[0]
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106 # return self._mBestGuessProber.get_confidence()