upgrade to charade v1.0.3

This commit is contained in:
Kenneth Reitz
2013-03-22 15:20:49 -04:00
parent 0d07d1afb3
commit 80a861cb84
10 changed files with 68 additions and 19 deletions
+6 -1
View File
@@ -15,10 +15,15 @@
# 02110-1301 USA
######################### END LICENSE BLOCK #########################
__version__ = "1.0.1"
__version__ = "1.0.3"
from sys import version_info
def detect(aBuf):
if ((version_info < (3, 0) and isinstance(aBuf, unicode)) or
(version_info >= (3, 0) and not isinstance(aBuf, bytes))):
raise ValueError('Expected a bytes object, not a unicode object')
from . import universaldetector
u = universaldetector.UniversalDetector()
u.reset()
@@ -40,6 +40,7 @@ from .compat import wrap_ord
ENOUGH_DATA_THRESHOLD = 1024
SURE_YES = 0.99
SURE_NO = 0.01
MINIMUM_DATA_THRESHOLD = 3
class CharDistributionAnalysis:
@@ -82,7 +83,7 @@ class CharDistributionAnalysis:
"""return confidence based on existing data"""
# if we didn't receive any character in our consideration range,
# return negative answer
if self._mTotalChars <= 0:
if self._mTotalChars <= 0 or self._mFreqChars <= MINIMUM_DATA_THRESHOLD:
return SURE_NO
if self._mTotalChars != self._mFreqChars:
+10 -2
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@@ -18,9 +18,17 @@
# 02110-1301 USA
######################### END LICENSE BLOCK #########################
import sys
if sys.version_info < (3, 0):
base_str = (str, unicode)
else:
base_str = (bytes, str)
def wrap_ord(a):
if isinstance(a, str):
if sys.version_info < (3, 0) and isinstance(a, base_str):
return ord(a)
elif isinstance(a, int):
else:
return a
@@ -25,8 +25,6 @@
# 02110-1301 USA
######################### END LICENSE BLOCK #########################
from . import constants
# KOI8-R language model
# Character Mapping Table:
KOI8R_CharToOrderMap = (
@@ -25,8 +25,6 @@
# 02110-1301 USA
######################### END LICENSE BLOCK #########################
from . import constants
# 255: Control characters that usually does not exist in any text
# 254: Carriage/Return
# 253: symbol (punctuation) that does not belong to word
@@ -27,8 +27,6 @@
# 02110-1301 USA
######################### END LICENSE BLOCK #########################
from . import constants
# 255: Control characters that usually does not exist in any text
# 254: Carriage/Return
# 253: symbol (punctuation) that does not belong to word
@@ -25,8 +25,6 @@
# 02110-1301 USA
######################### END LICENSE BLOCK #########################
from . import constants
# 255: Control characters that usually does not exist in any text
# 254: Carriage/Return
# 253: symbol (punctuation) that does not belong to word
@@ -33,6 +33,7 @@ from .sjisprober import SJISProber
from .eucjpprober import EUCJPProber
from .gb2312prober import GB2312Prober
from .euckrprober import EUCKRProber
from .cp949prober import CP949Prober
from .big5prober import Big5Prober
from .euctwprober import EUCTWProber
@@ -46,6 +47,7 @@ class MBCSGroupProber(CharSetGroupProber):
EUCJPProber(),
GB2312Prober(),
EUCKRProber(),
CP949Prober(),
Big5Prober(),
EUCTWProber()
]
+40
View File
@@ -78,6 +78,46 @@ Big5SMModel = {'classTable': BIG5_cls,
'charLenTable': Big5CharLenTable,
'name': 'Big5'}
# CP949
CP949_cls = (
1,1,1,1,1,1,1,1, 1,1,1,1,1,1,0,0, # 00 - 0f
1,1,1,1,1,1,1,1, 1,1,1,0,1,1,1,1, # 10 - 1f
1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, # 20 - 2f
1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, # 30 - 3f
1,4,4,4,4,4,4,4, 4,4,4,4,4,4,4,4, # 40 - 4f
4,4,5,5,5,5,5,5, 5,5,5,1,1,1,1,1, # 50 - 5f
1,5,5,5,5,5,5,5, 5,5,5,5,5,5,5,5, # 60 - 6f
5,5,5,5,5,5,5,5, 5,5,5,1,1,1,1,1, # 70 - 7f
0,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6, # 80 - 8f
6,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6, # 90 - 9f
6,7,7,7,7,7,7,7, 7,7,7,7,7,8,8,8, # a0 - af
7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7, # b0 - bf
7,7,7,7,7,7,9,2, 2,3,2,2,2,2,2,2, # c0 - cf
2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, # d0 - df
2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, # e0 - ef
2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,0, # f0 - ff
)
CP949_st = (
#cls= 0 1 2 3 4 5 6 7 8 9 # previous state =
eError,eStart, 3,eError,eStart,eStart, 4, 5,eError, 6, # eStart
eError,eError,eError,eError,eError,eError,eError,eError,eError,eError, # eError
eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe, # eItsMe
eError,eError,eStart,eStart,eError,eError,eError,eStart,eStart,eStart, # 3
eError,eError,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart, # 4
eError,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart, # 5
eError,eStart,eStart,eStart,eStart,eError,eError,eStart,eStart,eStart, # 6
)
CP949CharLenTable = (0, 1, 2, 0, 1, 1, 2, 2, 0, 2)
CP949SMModel = {'classTable': CP949_cls,
'classFactor': 10,
'stateTable': CP949_st,
'charLenTable': CP949CharLenTable,
'name': 'CP949'}
# EUC-JP
EUCJP_cls = (
@@ -28,6 +28,7 @@
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
@@ -70,31 +71,31 @@ class UniversalDetector:
if not self._mGotData:
# If the data starts with BOM, we know it is UTF
if aBuf[:3] == '\xEF\xBB\xBF':
if aBuf[:3] == codecs.BOM:
# EF BB BF UTF-8 with BOM
self.result = {'encoding': "UTF-8", 'confidence': 1.0}
elif aBuf[:4] == '\xFF\xFE\x00\x00':
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] == '\x00\x00\xFE\xFF':
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] == '\xFE\xFF\x00\x00':
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] == '\x00\x00\xFF\xFE':
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] == '\xFF\xFE':
elif aBuf[:2] == codecs.BOM_LE:
# FF FE UTF-16, little endian BOM
self.result = {'encoding': "UTF-16LE", 'confidence': 1.0}
elif aBuf[:2] == '\xFE\xFF':
elif aBuf[:2] == codecs.BOM_BE:
# FE FF UTF-16, big endian BOM
self.result = {'encoding': "UTF-16BE", 'confidence': 1.0}