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📁 ..
📄 __init__.py(1.26 KB)
📄 __init__.pyc(797 B)
📄 __init__.pyo(797 B)
📄 big5freq.py(80.66 KB)
📄 big5freq.pyc(111.11 KB)
📄 big5freq.pyo(111.11 KB)
📄 big5prober.py(1.64 KB)
📄 big5prober.pyc(1.07 KB)
📄 big5prober.pyo(1.07 KB)
📄 chardetect.py(1.09 KB)
📄 chardetect.pyc(1.46 KB)
📄 chardetect.pyo(1.46 KB)
📄 chardistribution.py(9.01 KB)
📄 chardistribution.pyc(7.35 KB)
📄 chardistribution.pyo(7.35 KB)
📄 charsetgroupprober.py(3.7 KB)
📄 charsetgroupprober.pyc(2.48 KB)
📄 charsetgroupprober.pyo(2.48 KB)
📄 charsetprober.py(1.86 KB)
📄 charsetprober.pyc(2.08 KB)
📄 charsetprober.pyo(2.08 KB)
📄 codingstatemachine.py(2.26 KB)
📄 codingstatemachine.pyc(1.74 KB)
📄 codingstatemachine.pyo(1.74 KB)
📄 compat.py(1.13 KB)
📄 compat.pyc(559 B)
📄 compat.pyo(559 B)
📄 constants.py(1.3 KB)
📄 constants.pyc(332 B)
📄 constants.pyo(332 B)
📄 cp949prober.py(1.74 KB)
📄 cp949prober.pyc(1.07 KB)
📄 cp949prober.pyo(1.07 KB)
📄 escprober.py(3.11 KB)
📄 escprober.pyc(2.31 KB)
📄 escprober.pyo(2.31 KB)
📄 escsm.py(7.66 KB)
📄 escsm.pyc(7.13 KB)
📄 escsm.pyo(7.13 KB)
📄 eucjpprober.py(3.59 KB)
📄 eucjpprober.pyc(2.71 KB)
📄 eucjpprober.pyo(2.71 KB)
📄 euckrfreq.py(44.9 KB)
📄 euckrfreq.pyc(86.69 KB)
📄 euckrfreq.pyo(86.69 KB)
📄 euckrprober.py(1.64 KB)
📄 euckrprober.pyc(1.08 KB)
📄 euckrprober.pyo(1.08 KB)
📄 euctwfreq.py(34.05 KB)
📄 euctwfreq.pyc(59.74 KB)
📄 euctwfreq.pyo(59.74 KB)
📄 euctwprober.py(1.64 KB)
📄 euctwprober.pyc(1.08 KB)
📄 euctwprober.pyo(1.08 KB)
📄 gb2312freq.py(35.17 KB)
📄 gb2312freq.pyc(67.17 KB)
📄 gb2312freq.pyo(67.17 KB)
📄 gb2312prober.py(1.64 KB)
📄 gb2312prober.pyc(1.08 KB)
📄 gb2312prober.pyo(1.08 KB)
📄 hebrewprober.py(13.05 KB)
📄 hebrewprober.pyc(3.32 KB)
📄 hebrewprober.pyo(3.32 KB)
📄 jisfreq.py(46.21 KB)
📄 jisfreq.pyc(82.03 KB)
📄 jisfreq.pyo(82.03 KB)
📄 jpcntx.py(18.66 KB)
📄 jpcntx.pyc(24.04 KB)
📄 jpcntx.pyo(24.04 KB)
📄 langbulgarianmodel.py(12.48 KB)
📄 langbulgarianmodel.pyc(24.3 KB)
📄 langbulgarianmodel.pyo(24.3 KB)
📄 langcyrillicmodel.py(17.31 KB)
📄 langcyrillicmodel.pyc(29.85 KB)
📄 langcyrillicmodel.pyo(29.85 KB)
📄 langgreekmodel.py(12.33 KB)
📄 langgreekmodel.pyc(24 KB)
📄 langgreekmodel.pyo(24 KB)
📄 langhebrewmodel.py(11.05 KB)
📄 langhebrewmodel.pyc(22.84 KB)
📄 langhebrewmodel.pyo(22.84 KB)
📄 langhungarianmodel.py(12.24 KB)
📄 langhungarianmodel.pyc(24.29 KB)
📄 langhungarianmodel.pyo(24.29 KB)
📄 langthaimodel.py(11.01 KB)
📄 langthaimodel.pyc(22.83 KB)
📄 langthaimodel.pyo(22.83 KB)
📄 latin1prober.py(5.12 KB)
📄 latin1prober.pyc(3.37 KB)
📄 latin1prober.pyo(3.37 KB)
📄 mbcharsetprober.py(3.19 KB)
📄 mbcharsetprober.pyc(2.36 KB)
📄 mbcharsetprober.pyo(2.36 KB)
📄 mbcsgroupprober.py(1.92 KB)
📄 mbcsgroupprober.pyc(1.22 KB)
📄 mbcsgroupprober.pyo(1.22 KB)
📄 mbcssm.py(19.15 KB)
📄 mbcssm.pyc(17.25 KB)
📄 mbcssm.pyo(17.25 KB)
📄 sbcharsetprober.py(4.68 KB)
📄 sbcharsetprober.pyc(3.22 KB)
📄 sbcharsetprober.pyo(3.22 KB)
📄 sbcsgroupprober.py(3.21 KB)
📄 sbcsgroupprober.pyc(1.89 KB)
📄 sbcsgroupprober.pyo(1.89 KB)
📄 sjisprober.py(3.65 KB)
📄 sjisprober.pyc(2.73 KB)
📄 sjisprober.pyo(2.73 KB)
📄 universaldetector.py(6.67 KB)
📄 universaldetector.pyc(4.02 KB)
📄 universaldetector.pyo(4.02 KB)
📄 utf8prober.py(2.59 KB)
📄 utf8prober.pyc(2.14 KB)
📄 utf8prober.pyo(2.14 KB)

Editing: universaldetector.py

######################## 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 . import constants
import sys
import codecs
from .latin1prober import Latin1Prober  # windows-1252
from .mbcsgroupprober import MBCSGroupProber  # multi-byte character sets
from .sbcsgroupprober import SBCSGroupProber  # single-byte character sets
from .escprober import EscCharSetProber  # ISO-2122, etc.
import re

MINIMUM_THRESHOLD = 0.20
ePureAscii = 0
eEscAscii = 1
eHighbyte = 2

class UniversalDetector:
    def __init__(self):
        self._highBitDetector = re.compile(b'[\x80-\xFF]')
        self._escDetector = re.compile(b'(\033|~{)')
        self._mEscCharSetProber = None
        self._mCharSetProbers = []
        self.reset()

def reset(self):
        self.result = {'encoding': None, 'confidence': 0.0}
        self.done = False
        self._mStart = True
        self._mGotData = False
        self._mInputState = ePureAscii
        self._mLastChar = b''
        if self._mEscCharSetProber:
            self._mEscCharSetProber.reset()
        for prober in self._mCharSetProbers:
            prober.reset()

def feed(self, aBuf):
        if self.done:
            return

aLen = len(aBuf)
        if not aLen:
            return

if not self._mGotData:
            # If the data starts with BOM, we know it is UTF
            if aBuf[:3] == codecs.BOM:
                # EF BB BF  UTF-8 with BOM
                self.result = {'encoding': "UTF-8", 'confidence': 1.0}
            elif aBuf[:4] == codecs.BOM_UTF32_LE:
                # FF FE 00 00  UTF-32, little-endian BOM
                self.result = {'encoding': "UTF-32LE", 'confidence': 1.0}
            elif aBuf[:4] == codecs.BOM_UTF32_BE:
                # 00 00 FE FF  UTF-32, big-endian BOM
                self.result = {'encoding': "UTF-32BE", 'confidence': 1.0}
            elif aBuf[:4] == b'\xFE\xFF\x00\x00':
                # FE FF 00 00  UCS-4, unusual octet order BOM (3412)
                self.result = {
                    'encoding': "X-ISO-10646-UCS-4-3412",
                    'confidence': 1.0
                }
            elif aBuf[:4] == b'\x00\x00\xFF\xFE':
                # 00 00 FF FE  UCS-4, unusual octet order BOM (2143)
                self.result = {
                    'encoding': "X-ISO-10646-UCS-4-2143",
                    'confidence': 1.0
                }
            elif aBuf[:2] == codecs.BOM_LE:
                # FF FE  UTF-16, little endian BOM
                self.result = {'encoding': "UTF-16LE", 'confidence': 1.0}
            elif aBuf[:2] == codecs.BOM_BE:
                # FE FF  UTF-16, big endian BOM
                self.result = {'encoding': "UTF-16BE", 'confidence': 1.0}

self._mGotData = True
        if self.result['encoding'] and (self.result['confidence'] > 0.0):
            self.done = True
            return

if self._mInputState == ePureAscii:
            if self._highBitDetector.search(aBuf):
                self._mInputState = eHighbyte
            elif ((self._mInputState == ePureAscii) and
                    self._escDetector.search(self._mLastChar + aBuf)):
                self._mInputState = eEscAscii

self._mLastChar = aBuf[-1:]

if self._mInputState == eEscAscii:
            if not self._mEscCharSetProber:
                self._mEscCharSetProber = EscCharSetProber()
            if self._mEscCharSetProber.feed(aBuf) == constants.eFoundIt:
                self.result = {'encoding': self._mEscCharSetProber.get_charset_name(),
                               'confidence': self._mEscCharSetProber.get_confidence()}
                self.done = True
        elif self._mInputState == eHighbyte:
            if not self._mCharSetProbers:
                self._mCharSetProbers = [MBCSGroupProber(), SBCSGroupProber(),
                                         Latin1Prober()]
            for prober in self._mCharSetProbers:
                if prober.feed(aBuf) == constants.eFoundIt:
                    self.result = {'encoding': prober.get_charset_name(),
                                   'confidence': prober.get_confidence()}
                    self.done = True
                    break

def close(self):
        if self.done:
            return
        if not self._mGotData:
            if constants._debug:
                sys.stderr.write('no data received!\n')
            return
        self.done = True

if self._mInputState == ePureAscii:
            self.result = {'encoding': 'ascii', 'confidence': 1.0}
            return self.result

if self._mInputState == eHighbyte:
            proberConfidence = None
            maxProberConfidence = 0.0
            maxProber = None
            for prober in self._mCharSetProbers:
                if not prober:
                    continue
                proberConfidence = prober.get_confidence()
                if proberConfidence > maxProberConfidence:
                    maxProberConfidence = proberConfidence
                    maxProber = prober
            if maxProber and (maxProberConfidence > MINIMUM_THRESHOLD):
                self.result = {'encoding': maxProber.get_charset_name(),
                               'confidence': maxProber.get_confidence()}
                return self.result

if constants._debug:
            sys.stderr.write('no probers hit minimum threshhold\n')
            for prober in self._mCharSetProbers[0].mProbers:
                if not prober:
                    continue
                sys.stderr.write('%s confidence = %s\n' %
                                 (prober.get_charset_name(),
                                  prober.get_confidence()))

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