--- a/ThirdParty/CharDet/chardet/latin1prober.py Fri Jan 01 16:11:36 2010 +0000
+++ b/ThirdParty/CharDet/chardet/latin1prober.py Sat Jan 02 15:11:35 2010 +0000
@@ -1,136 +1,135 @@
-######################## 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 charsetprober import CharSetProber
-import constants
-import operator
-
-FREQ_CAT_NUM = 4
-
-UDF = 0 # undefined
-OTH = 1 # other
-ASC = 2 # ascii capital letter
-ASS = 3 # ascii small letter
-ACV = 4 # accent capital vowel
-ACO = 5 # accent capital other
-ASV = 6 # accent small vowel
-ASO = 7 # accent small other
-CLASS_NUM = 8 # total classes
-
-Latin1_CharToClass = ( \
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 00 - 07
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 08 - 0F
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 10 - 17
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 18 - 1F
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 20 - 27
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 28 - 2F
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 30 - 37
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 38 - 3F
- OTH, ASC, ASC, ASC, ASC, ASC, ASC, ASC, # 40 - 47
- ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC, # 48 - 4F
- ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC, # 50 - 57
- ASC, ASC, ASC, OTH, OTH, OTH, OTH, OTH, # 58 - 5F
- OTH, ASS, ASS, ASS, ASS, ASS, ASS, ASS, # 60 - 67
- ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS, # 68 - 6F
- ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS, # 70 - 77
- ASS, ASS, ASS, OTH, OTH, OTH, OTH, OTH, # 78 - 7F
- OTH, UDF, OTH, ASO, OTH, OTH, OTH, OTH, # 80 - 87
- OTH, OTH, ACO, OTH, ACO, UDF, ACO, UDF, # 88 - 8F
- UDF, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 90 - 97
- OTH, OTH, ASO, OTH, ASO, UDF, ASO, ACO, # 98 - 9F
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # A0 - A7
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # A8 - AF
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # B0 - B7
- OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # B8 - BF
- ACV, ACV, ACV, ACV, ACV, ACV, ACO, ACO, # C0 - C7
- ACV, ACV, ACV, ACV, ACV, ACV, ACV, ACV, # C8 - CF
- ACO, ACO, ACV, ACV, ACV, ACV, ACV, OTH, # D0 - D7
- ACV, ACV, ACV, ACV, ACV, ACO, ACO, ACO, # D8 - DF
- ASV, ASV, ASV, ASV, ASV, ASV, ASO, ASO, # E0 - E7
- ASV, ASV, ASV, ASV, ASV, ASV, ASV, ASV, # E8 - EF
- ASO, ASO, ASV, ASV, ASV, ASV, ASV, OTH, # F0 - F7
- ASV, ASV, ASV, ASV, ASV, ASO, ASO, ASO, # F8 - FF
-)
-
-# 0 : illegal
-# 1 : very unlikely
-# 2 : normal
-# 3 : very likely
-Latin1ClassModel = ( \
-# UDF OTH ASC ASS ACV ACO ASV ASO
- 0, 0, 0, 0, 0, 0, 0, 0, # UDF
- 0, 3, 3, 3, 3, 3, 3, 3, # OTH
- 0, 3, 3, 3, 3, 3, 3, 3, # ASC
- 0, 3, 3, 3, 1, 1, 3, 3, # ASS
- 0, 3, 3, 3, 1, 2, 1, 2, # ACV
- 0, 3, 3, 3, 3, 3, 3, 3, # ACO
- 0, 3, 1, 3, 1, 1, 1, 3, # ASV
- 0, 3, 1, 3, 1, 1, 3, 3, # ASO
-)
-
-class Latin1Prober(CharSetProber):
- def __init__(self):
- CharSetProber.__init__(self)
- self.reset()
-
- def reset(self):
- self._mLastCharClass = OTH
- self._mFreqCounter = [0] * FREQ_CAT_NUM
- CharSetProber.reset(self)
-
- def get_charset_name(self):
- return "windows-1252"
-
- def feed(self, aBuf):
- aBuf = self.filter_with_english_letters(aBuf)
- for c in aBuf:
- charClass = Latin1_CharToClass[ord(c)]
- freq = Latin1ClassModel[(self._mLastCharClass * CLASS_NUM) + charClass]
- if freq == 0:
- self._mState = constants.eNotMe
- break
- self._mFreqCounter[freq] += 1
- self._mLastCharClass = charClass
-
- return self.get_state()
-
- def get_confidence(self):
- if self.get_state() == constants.eNotMe:
- return 0.01
-
- total = reduce(operator.add, self._mFreqCounter)
- if total < 0.01:
- confidence = 0.0
- else:
- confidence = (self._mFreqCounter[3] / total) - (self._mFreqCounter[1] * 20.0 / total)
- if confidence < 0.0:
- confidence = 0.0
- # lower the confidence of latin1 so that other more accurate detector
- # can take priority.
- confidence = confidence * 0.5
- return confidence
+######################## 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 .charsetprober import CharSetProber
+from . import constants
+
+FREQ_CAT_NUM = 4
+
+UDF = 0 # undefined
+OTH = 1 # other
+ASC = 2 # ascii capital letter
+ASS = 3 # ascii small letter
+ACV = 4 # accent capital vowel
+ACO = 5 # accent capital other
+ASV = 6 # accent small vowel
+ASO = 7 # accent small other
+CLASS_NUM = 8 # total classes
+
+Latin1_CharToClass = ( \
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 00 - 07
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 08 - 0F
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 10 - 17
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 18 - 1F
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 20 - 27
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 28 - 2F
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 30 - 37
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 38 - 3F
+ OTH, ASC, ASC, ASC, ASC, ASC, ASC, ASC, # 40 - 47
+ ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC, # 48 - 4F
+ ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC, # 50 - 57
+ ASC, ASC, ASC, OTH, OTH, OTH, OTH, OTH, # 58 - 5F
+ OTH, ASS, ASS, ASS, ASS, ASS, ASS, ASS, # 60 - 67
+ ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS, # 68 - 6F
+ ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS, # 70 - 77
+ ASS, ASS, ASS, OTH, OTH, OTH, OTH, OTH, # 78 - 7F
+ OTH, UDF, OTH, ASO, OTH, OTH, OTH, OTH, # 80 - 87
+ OTH, OTH, ACO, OTH, ACO, UDF, ACO, UDF, # 88 - 8F
+ UDF, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # 90 - 97
+ OTH, OTH, ASO, OTH, ASO, UDF, ASO, ACO, # 98 - 9F
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # A0 - A7
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # A8 - AF
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # B0 - B7
+ OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH, # B8 - BF
+ ACV, ACV, ACV, ACV, ACV, ACV, ACO, ACO, # C0 - C7
+ ACV, ACV, ACV, ACV, ACV, ACV, ACV, ACV, # C8 - CF
+ ACO, ACO, ACV, ACV, ACV, ACV, ACV, OTH, # D0 - D7
+ ACV, ACV, ACV, ACV, ACV, ACO, ACO, ACO, # D8 - DF
+ ASV, ASV, ASV, ASV, ASV, ASV, ASO, ASO, # E0 - E7
+ ASV, ASV, ASV, ASV, ASV, ASV, ASV, ASV, # E8 - EF
+ ASO, ASO, ASV, ASV, ASV, ASV, ASV, OTH, # F0 - F7
+ ASV, ASV, ASV, ASV, ASV, ASO, ASO, ASO, # F8 - FF
+)
+
+# 0 : illegal
+# 1 : very unlikely
+# 2 : normal
+# 3 : very likely
+Latin1ClassModel = ( \
+# UDF OTH ASC ASS ACV ACO ASV ASO
+ 0, 0, 0, 0, 0, 0, 0, 0, # UDF
+ 0, 3, 3, 3, 3, 3, 3, 3, # OTH
+ 0, 3, 3, 3, 3, 3, 3, 3, # ASC
+ 0, 3, 3, 3, 1, 1, 3, 3, # ASS
+ 0, 3, 3, 3, 1, 2, 1, 2, # ACV
+ 0, 3, 3, 3, 3, 3, 3, 3, # ACO
+ 0, 3, 1, 3, 1, 1, 1, 3, # ASV
+ 0, 3, 1, 3, 1, 1, 3, 3, # ASO
+)
+
+class Latin1Prober(CharSetProber):
+ def __init__(self):
+ CharSetProber.__init__(self)
+ self.reset()
+
+ def reset(self):
+ self._mLastCharClass = OTH
+ self._mFreqCounter = [0] * FREQ_CAT_NUM
+ CharSetProber.reset(self)
+
+ def get_charset_name(self):
+ return "windows-1252"
+
+ def feed(self, aBuf):
+ aBuf = self.filter_with_english_letters(aBuf)
+ for c in aBuf:
+ charClass = Latin1_CharToClass[c]
+ freq = Latin1ClassModel[(self._mLastCharClass * CLASS_NUM) + charClass]
+ if freq == 0:
+ self._mState = constants.eNotMe
+ break
+ self._mFreqCounter[freq] += 1
+ self._mLastCharClass = charClass
+
+ return self.get_state()
+
+ def get_confidence(self):
+ if self.get_state() == constants.eNotMe:
+ return 0.01
+
+ total = sum(self._mFreqCounter)
+ if total < 0.01:
+ confidence = 0.0
+ else:
+ confidence = (self._mFreqCounter[3] / total) - (self._mFreqCounter[1] * 20.0 / total)
+ if confidence < 0.0:
+ confidence = 0.0
+ # lower the confidence of latin1 so that other more accurate detector
+ # can take priority.
+ confidence = confidence * 0.5
+ return confidence
