diff options
Diffstat (limited to 'pip/_vendor/requests/packages/charade/latin1prober.py')
| -rw-r--r-- | pip/_vendor/requests/packages/charade/latin1prober.py | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/pip/_vendor/requests/packages/charade/latin1prober.py b/pip/_vendor/requests/packages/charade/latin1prober.py deleted file mode 100644 index 5e2c9f906..000000000 --- a/pip/_vendor/requests/packages/charade/latin1prober.py +++ /dev/null @@ -1,139 +0,0 @@ -######################## 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 .constants import eNotMe -from .compat import wrap_ord - -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[wrap_ord(c)] - freq = Latin1ClassModel[(self._mLastCharClass * CLASS_NUM) - + charClass] - if freq == 0: - self._mState = eNotMe - break - self._mFreqCounter[freq] += 1 - self._mLastCharClass = charClass - - return self.get_state() - - def get_confidence(self): - if self.get_state() == eNotMe: - return 0.01 - - total = sum(self._mFreqCounter) - if total < 0.01: - confidence = 0.0 - else: - confidence = ((float(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 |