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//lib/python3.6/site-packages/chardet/charsetgroupprober.py

######################## BEGIN LICENSE BLOCK ########################
# The Original Code is Mozilla Communicator client 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 .enums import ProbingState
from .charsetprober import CharSetProber


class CharSetGroupProber(CharSetProber):
    def __init__(self, lang_filter=None):
        super(CharSetGroupProber, self).__init__(lang_filter=lang_filter)
        self._active_num = 0
        self.probers = []
        self._best_guess_prober = None

    def reset(self):
        super(CharSetGroupProber, self).reset()
        self._active_num = 0
        for prober in self.probers:
            if prober:
                prober.reset()
                prober.active = True
                self._active_num += 1
        self._best_guess_prober = None

    @property
    def charset_name(self):
        if not self._best_guess_prober:
            self.get_confidence()
            if not self._best_guess_prober:
                return None
        return self._best_guess_prober.charset_name

    @property
    def language(self):
        if not self._best_guess_prober:
            self.get_confidence()
            if not self._best_guess_prober:
                return None
        return self._best_guess_prober.language

    def feed(self, byte_str):
        for prober in self.probers:
            if not prober:
                continue
            if not prober.active:
                continue
            state = prober.feed(byte_str)
            if not state:
                continue
            if state == ProbingState.FOUND_IT:
                self._best_guess_prober = prober
                return self.state
            elif state == ProbingState.NOT_ME:
                prober.active = False
                self._active_num -= 1
                if self._active_num <= 0:
                    self._state = ProbingState.NOT_ME
                    return self.state
        return self.state

    def get_confidence(self):
        state = self.state
        if state == ProbingState.FOUND_IT:
            return 0.99
        elif state == ProbingState.NOT_ME:
            return 0.01
        best_conf = 0.0
        self._best_guess_prober = None
        for prober in self.probers:
            if not prober:
                continue
            if not prober.active:
                self.logger.debug('%s not active', prober.charset_name)
                continue
            conf = prober.get_confidence()
            self.logger.debug('%s %s confidence = %s', prober.charset_name, prober.language, conf)
            if best_conf < conf:
                best_conf = conf
                self._best_guess_prober = prober
        if not self._best_guess_prober:
            return 0.0
        return best_conf

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cli DIR	-	drwxr-xr-x	2025-03-30 04:21:31	Edit Download recursive recursive
__pycache__ DIR	-	drwxr-xr-x	2025-03-30 04:21:31	Edit Download recursive recursive
big5freq.py	30.52 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
big5prober.py	1.72 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
chardistribution.py	9.19 KB	lrw-r--r--	2017-04-11 19:52:09	Edit Download recursive recursive
charsetgroupprober.py	3.70 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
charsetprober.py	4.99 KB	lrw-r--r--	2017-06-08 14:21:53	Edit Download recursive recursive
codingstatemachine.py	3.51 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
compat.py	1.11 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
cp949prober.py	1.81 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
enums.py	1.62 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
escprober.py	3.86 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
escsm.py	10.26 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
eucjpprober.py	3.66 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
euckrfreq.py	13.23 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
euckrprober.py	1.71 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
euctwfreq.py	30.88 KB	lrw-r--r--	2017-04-11 20:48:55	Edit Download recursive recursive
euctwprober.py	1.71 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
gb2312freq.py	20.23 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
gb2312prober.py	1.71 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
hebrewprober.py	13.51 KB	lrw-r--r--	2017-06-08 14:21:53	Edit Download recursive recursive
jisfreq.py	25.17 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
jpcntx.py	19.18 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
langbulgarianmodel.py	12.54 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
langcyrillicmodel.py	17.53 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
langgreekmodel.py	12.39 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
langhebrewmodel.py	11.08 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
langhungarianmodel.py	12.30 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
langthaimodel.py	11.03 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
langturkishmodel.py	10.84 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
latin1prober.py	5.24 KB	lrw-r--r--	2017-06-08 14:21:53	Edit Download recursive recursive
mbcharsetprober.py	3.33 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
mbcsgroupprober.py	1.96 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
mbcssm.py	24.88 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
sbcharsetprober.py	5.52 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
sbcsgroupprober.py	3.46 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
sjisprober.py	3.69 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
universaldetector.py	12.19 KB	lrw-r--r--	2017-06-08 14:32:38	Edit Download recursive recursive
utf8prober.py	2.70 KB	lrw-r--r--	2017-04-11 17:51:33	Edit Download recursive recursive
version.py	242 B	lrw-r--r--	2017-06-08 14:32:13	Edit Download recursive recursive
__init__.py	1.52 KB	lrw-r--r--	2017-04-12 18:41:25	Edit Download recursive recursive