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Change venv

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Ambulance Clerc
2023-05-31 08:31:22 +02:00
parent fb6f579089
commit fdbb52c96f
466 changed files with 25899 additions and 64721 deletions
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144
venv/Lib/site-packages/pip/_vendor/chardet/chardistribution.py
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@@ -25,40 +25,58 @@
# 02110-1301 USA
######################### END LICENSE BLOCK #########################
from .euctwfreq import (EUCTW_CHAR_TO_FREQ_ORDER, EUCTW_TABLE_SIZE,
EUCTW_TYPICAL_DISTRIBUTION_RATIO)
from .euckrfreq import (EUCKR_CHAR_TO_FREQ_ORDER, EUCKR_TABLE_SIZE,
EUCKR_TYPICAL_DISTRIBUTION_RATIO)
from .gb2312freq import (GB2312_CHAR_TO_FREQ_ORDER, GB2312_TABLE_SIZE,
GB2312_TYPICAL_DISTRIBUTION_RATIO)
from .big5freq import (BIG5_CHAR_TO_FREQ_ORDER, BIG5_TABLE_SIZE,
BIG5_TYPICAL_DISTRIBUTION_RATIO)
from .jisfreq import (JIS_CHAR_TO_FREQ_ORDER, JIS_TABLE_SIZE,
JIS_TYPICAL_DISTRIBUTION_RATIO)
from typing import Tuple, Union
from .big5freq import (
BIG5_CHAR_TO_FREQ_ORDER,
BIG5_TABLE_SIZE,
BIG5_TYPICAL_DISTRIBUTION_RATIO,
)
from .euckrfreq import (
EUCKR_CHAR_TO_FREQ_ORDER,
EUCKR_TABLE_SIZE,
EUCKR_TYPICAL_DISTRIBUTION_RATIO,
)
from .euctwfreq import (
EUCTW_CHAR_TO_FREQ_ORDER,
EUCTW_TABLE_SIZE,
EUCTW_TYPICAL_DISTRIBUTION_RATIO,
)
from .gb2312freq import (
GB2312_CHAR_TO_FREQ_ORDER,
GB2312_TABLE_SIZE,
GB2312_TYPICAL_DISTRIBUTION_RATIO,
)
from .jisfreq import (
JIS_CHAR_TO_FREQ_ORDER,
JIS_TABLE_SIZE,
JIS_TYPICAL_DISTRIBUTION_RATIO,
)
from .johabfreq import JOHAB_TO_EUCKR_ORDER_TABLE
class CharDistributionAnalysis(object):
class CharDistributionAnalysis:
ENOUGH_DATA_THRESHOLD = 1024
SURE_YES = 0.99
SURE_NO = 0.01
MINIMUM_DATA_THRESHOLD = 3
def __init__(self):
def __init__(self) -> None:
# Mapping table to get frequency order from char order (get from
# GetOrder())
self._char_to_freq_order = None
self._table_size = None # Size of above table
self._char_to_freq_order: Tuple[int, ...] = tuple()
self._table_size = 0 # Size of above table
# This is a constant value which varies from language to language,
# used in calculating confidence. See
# http://www.mozilla.org/projects/intl/UniversalCharsetDetection.html
# for further detail.
self.typical_distribution_ratio = None
self._done = None
self._total_chars = None
self._freq_chars = None
self.typical_distribution_ratio = 0.0
self._done = False
self._total_chars = 0
self._freq_chars = 0
self.reset()
def reset(self):
def reset(self) -> None:
"""reset analyser, clear any state"""
# If this flag is set to True, detection is done and conclusion has
# been made
@@ -67,7 +85,7 @@ class CharDistributionAnalysis(object):
# The number of characters whose frequency order is less than 512
self._freq_chars = 0
def feed(self, char, char_len):
def feed(self, char: Union[bytes, bytearray], char_len: int) -> None:
"""feed a character with known length"""
if char_len == 2:
# we only care about 2-bytes character in our distribution analysis
@@ -81,7 +99,7 @@ class CharDistributionAnalysis(object):
if 512 > self._char_to_freq_order[order]:
self._freq_chars += 1
def get_confidence(self):
def get_confidence(self) -> float:
"""return confidence based on existing data"""
# if we didn't receive any character in our consideration range,
# return negative answer
@@ -89,20 +107,21 @@ class CharDistributionAnalysis(object):
return self.SURE_NO
if self._total_chars != self._freq_chars:
r = (self._freq_chars / ((self._total_chars - self._freq_chars)
* self.typical_distribution_ratio))
r = self._freq_chars / (
(self._total_chars - self._freq_chars) * self.typical_distribution_ratio
)
if r < self.SURE_YES:
return r
# normalize confidence (we don't want to be 100% sure)
return self.SURE_YES
def got_enough_data(self):
def got_enough_data(self) -> bool:
# It is not necessary to receive all data to draw conclusion.
# For charset detection, certain amount of data is enough
return self._total_chars > self.ENOUGH_DATA_THRESHOLD
def get_order(self, byte_str):
def get_order(self, _: Union[bytes, bytearray]) -> int:
# We do not handle characters based on the original encoding string,
# but convert this encoding string to a number, here called order.
# This allows multiple encodings of a language to share one frequency
@@ -111,13 +130,13 @@ class CharDistributionAnalysis(object):
class EUCTWDistributionAnalysis(CharDistributionAnalysis):
def __init__(self):
super(EUCTWDistributionAnalysis, self).__init__()
def __init__(self) -> None:
super().__init__()
self._char_to_freq_order = EUCTW_CHAR_TO_FREQ_ORDER
self._table_size = EUCTW_TABLE_SIZE
self.typical_distribution_ratio = EUCTW_TYPICAL_DISTRIBUTION_RATIO
def get_order(self, byte_str):
def get_order(self, byte_str: Union[bytes, bytearray]) -> int:
# for euc-TW encoding, we are interested
# first byte range: 0xc4 -- 0xfe
# second byte range: 0xa1 -- 0xfe
@@ -125,18 +144,17 @@ class EUCTWDistributionAnalysis(CharDistributionAnalysis):
first_char = byte_str[0]
if first_char >= 0xC4:
return 94 * (first_char - 0xC4) + byte_str[1] - 0xA1
else:
return -1
return -1
class EUCKRDistributionAnalysis(CharDistributionAnalysis):
def __init__(self):
super(EUCKRDistributionAnalysis, self).__init__()
def __init__(self) -> None:
super().__init__()
self._char_to_freq_order = EUCKR_CHAR_TO_FREQ_ORDER
self._table_size = EUCKR_TABLE_SIZE
self.typical_distribution_ratio = EUCKR_TYPICAL_DISTRIBUTION_RATIO
def get_order(self, byte_str):
def get_order(self, byte_str: Union[bytes, bytearray]) -> int:
# for euc-KR encoding, we are interested
# first byte range: 0xb0 -- 0xfe
# second byte range: 0xa1 -- 0xfe
@@ -144,18 +162,32 @@ class EUCKRDistributionAnalysis(CharDistributionAnalysis):
first_char = byte_str[0]
if first_char >= 0xB0:
return 94 * (first_char - 0xB0) + byte_str[1] - 0xA1
else:
return -1
return -1
class JOHABDistributionAnalysis(CharDistributionAnalysis):
def __init__(self) -> None:
super().__init__()
self._char_to_freq_order = EUCKR_CHAR_TO_FREQ_ORDER
self._table_size = EUCKR_TABLE_SIZE
self.typical_distribution_ratio = EUCKR_TYPICAL_DISTRIBUTION_RATIO
def get_order(self, byte_str: Union[bytes, bytearray]) -> int:
first_char = byte_str[0]
if 0x88 <= first_char < 0xD4:
code = first_char * 256 + byte_str[1]
return JOHAB_TO_EUCKR_ORDER_TABLE.get(code, -1)
return -1
class GB2312DistributionAnalysis(CharDistributionAnalysis):
def __init__(self):
super(GB2312DistributionAnalysis, self).__init__()
def __init__(self) -> None:
super().__init__()
self._char_to_freq_order = GB2312_CHAR_TO_FREQ_ORDER
self._table_size = GB2312_TABLE_SIZE
self.typical_distribution_ratio = GB2312_TYPICAL_DISTRIBUTION_RATIO
def get_order(self, byte_str):
def get_order(self, byte_str: Union[bytes, bytearray]) -> int:
# for GB2312 encoding, we are interested
# first byte range: 0xb0 -- 0xfe
# second byte range: 0xa1 -- 0xfe
@@ -163,18 +195,17 @@ class GB2312DistributionAnalysis(CharDistributionAnalysis):
first_char, second_char = byte_str[0], byte_str[1]
if (first_char >= 0xB0) and (second_char >= 0xA1):
return 94 * (first_char - 0xB0) + second_char - 0xA1
else:
return -1
return -1
class Big5DistributionAnalysis(CharDistributionAnalysis):
def __init__(self):
super(Big5DistributionAnalysis, self).__init__()
def __init__(self) -> None:
super().__init__()
self._char_to_freq_order = BIG5_CHAR_TO_FREQ_ORDER
self._table_size = BIG5_TABLE_SIZE
self.typical_distribution_ratio = BIG5_TYPICAL_DISTRIBUTION_RATIO
def get_order(self, byte_str):
def get_order(self, byte_str: Union[bytes, bytearray]) -> int:
# for big5 encoding, we are interested
# first byte range: 0xa4 -- 0xfe
# second byte range: 0x40 -- 0x7e , 0xa1 -- 0xfe
@@ -183,28 +214,26 @@ class Big5DistributionAnalysis(CharDistributionAnalysis):
if first_char >= 0xA4:
if second_char >= 0xA1:
return 157 * (first_char - 0xA4) + second_char - 0xA1 + 63
else:
return 157 * (first_char - 0xA4) + second_char - 0x40
else:
return -1
return 157 * (first_char - 0xA4) + second_char - 0x40
return -1
class SJISDistributionAnalysis(CharDistributionAnalysis):
def __init__(self):
super(SJISDistributionAnalysis, self).__init__()
def __init__(self) -> None:
super().__init__()
self._char_to_freq_order = JIS_CHAR_TO_FREQ_ORDER
self._table_size = JIS_TABLE_SIZE
self.typical_distribution_ratio = JIS_TYPICAL_DISTRIBUTION_RATIO
def get_order(self, byte_str):
def get_order(self, byte_str: Union[bytes, bytearray]) -> int:
# for sjis encoding, we are interested
# first byte range: 0x81 -- 0x9f , 0xe0 -- 0xfe
# second byte range: 0x40 -- 0x7e, 0x81 -- oxfe
# no validation needed here. State machine has done that
first_char, second_char = byte_str[0], byte_str[1]
if (first_char >= 0x81) and (first_char <= 0x9F):
if 0x81 <= first_char <= 0x9F:
order = 188 * (first_char - 0x81)
elif (first_char >= 0xE0) and (first_char <= 0xEF):
elif 0xE0 <= first_char <= 0xEF:
order = 188 * (first_char - 0xE0 + 31)
else:
return -1
@@ -215,19 +244,18 @@ class SJISDistributionAnalysis(CharDistributionAnalysis):
class EUCJPDistributionAnalysis(CharDistributionAnalysis):
def __init__(self):
super(EUCJPDistributionAnalysis, self).__init__()
def __init__(self) -> None:
super().__init__()
self._char_to_freq_order = JIS_CHAR_TO_FREQ_ORDER
self._table_size = JIS_TABLE_SIZE
self.typical_distribution_ratio = JIS_TYPICAL_DISTRIBUTION_RATIO
def get_order(self, byte_str):
def get_order(self, byte_str: Union[bytes, bytearray]) -> int:
# for euc-JP encoding, we are interested
# first byte range: 0xa0 -- 0xfe
# second byte range: 0xa1 -- 0xfe
# no validation needed here. State machine has done that
char = byte_str[0]
if char >= 0xA0:
return 94 * (char - 0xA1) + byte_str[1] - 0xa1
else:
return -1
return 94 * (char - 0xA1) + byte_str[1] - 0xA1
return -1