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utf_8_sig.pyc
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Python Compiled Bytecode
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2014-12-31
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5KB
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128 lines
# Source Generated with Decompyle++
# File: in.pyc (Python 2.7)
""" Python 'utf-8-sig' Codec
This work similar to UTF-8 with the following changes:
* On encoding/writing a UTF-8 encoded BOM will be prepended/written as the
first three bytes.
* On decoding/reading if the first three bytes are a UTF-8 encoded BOM, these
bytes will be skipped.
"""
import codecs
def encode(input, errors = 'strict'):
return (codecs.BOM_UTF8 + codecs.utf_8_encode(input, errors)[0], len(input))
def decode(input, errors = 'strict'):
prefix = 0
if input[:3] == codecs.BOM_UTF8:
input = input[3:]
prefix = 3
(output, consumed) = codecs.utf_8_decode(input, errors, True)
return (output, consumed + prefix)
class IncrementalEncoder(codecs.IncrementalEncoder):
def __init__(self, errors = 'strict'):
codecs.IncrementalEncoder.__init__(self, errors)
self.first = 1
def encode(self, input, final = False):
if self.first:
self.first = 0
return codecs.BOM_UTF8 + codecs.utf_8_encode(input, self.errors)[0]
return None.utf_8_encode(input, self.errors)[0]
def reset(self):
codecs.IncrementalEncoder.reset(self)
self.first = 1
def getstate(self):
return self.first
def setstate(self, state):
self.first = state
class IncrementalDecoder(codecs.BufferedIncrementalDecoder):
def __init__(self, errors = 'strict'):
codecs.BufferedIncrementalDecoder.__init__(self, errors)
self.first = True
def _buffer_decode(self, input, errors, final):
if self.first:
if len(input) < 3:
if codecs.BOM_UTF8.startswith(input):
return (u'', 0)
self.first = None
else:
self.first = None
if input[:3] == codecs.BOM_UTF8:
(output, consumed) = codecs.utf_8_decode(input[3:], errors, final)
return (output, consumed + 3)
return codecs.utf_8_decode(input, errors, final)
def reset(self):
codecs.BufferedIncrementalDecoder.reset(self)
self.first = True
class StreamWriter(codecs.StreamWriter):
def reset(self):
codecs.StreamWriter.reset(self)
try:
del self.encode
except AttributeError:
pass
def encode(self, input, errors = 'strict'):
self.encode = codecs.utf_8_encode
return encode(input, errors)
class StreamReader(codecs.StreamReader):
def reset(self):
codecs.StreamReader.reset(self)
try:
del self.decode
except AttributeError:
pass
def decode(self, input, errors = 'strict'):
if len(input) < 3 or codecs.BOM_UTF8.startswith(input):
return (u'', 0)
if input[:3] == codecs.BOM_UTF8:
self.decode = codecs.utf_8_decode
(output, consumed) = codecs.utf_8_decode(input[3:], errors)
return (output, consumed + 3)
self.decode = None.utf_8_decode
return codecs.utf_8_decode(input, errors)
def getregentry():
return codecs.CodecInfo(name = 'utf-8-sig', encode = encode, decode = decode, incrementalencoder = IncrementalEncoder, incrementaldecoder = IncrementalDecoder, streamreader = StreamReader, streamwriter = StreamWriter)