70 lines
2 KiB
Python
70 lines
2 KiB
Python
|
""" Generic Python Character Mapping Codec.
|
||
|
|
|
||
|
|
Use this codec directly rather than through the automatic
|
||
|
|
conversion mechanisms supplied by unicode() and .encode().
|
||
|
|
|
||
|
|
|
||
|
|
Written by Marc-Andre Lemburg (mal@lemburg.com).
|
||
|
|
|
||
|
|
(c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
|
||
|
|
|
||
|
|
"""#"
|
||
|
|
|
||
|
|
import codecs
|
||
|
|
|
||
|
|
### Codec APIs
|
||
|
|
|
||
|
|
class Codec(codecs.Codec):
|
||
|
|
|
||
|
|
# Note: Binding these as C functions will result in the class not
|
||
|
|
# converting them to methods. This is intended.
|
||
|
|
encode = codecs.charmap_encode
|
||
|
|
decode = codecs.charmap_decode
|
||
|
|
|
||
|
|
class IncrementalEncoder(codecs.IncrementalEncoder):
|
||
|
|
def __init__(self, errors='strict', mapping=None):
|
||
|
|
codecs.IncrementalEncoder.__init__(self, errors)
|
||
|
|
self.mapping = mapping
|
||
|
|
|
||
|
|
def encode(self, input, final=False):
|
||
|
|
return codecs.charmap_encode(input, self.errors, self.mapping)[0]
|
||
|
|
|
||
|
|
class IncrementalDecoder(codecs.IncrementalDecoder):
|
||
|
|
def __init__(self, errors='strict', mapping=None):
|
||
|
|
codecs.IncrementalDecoder.__init__(self, errors)
|
||
|
|
self.mapping = mapping
|
||
|
|
|
||
|
|
def decode(self, input, final=False):
|
||
|
|
return codecs.charmap_decode(input, self.errors, self.mapping)[0]
|
||
|
|
|
||
|
|
class StreamWriter(Codec,codecs.StreamWriter):
|
||
|
|
|
||
|
|
def __init__(self,stream,errors='strict',mapping=None):
|
||
|
|
codecs.StreamWriter.__init__(self,stream,errors)
|
||
|
|
self.mapping = mapping
|
||
|
|
|
||
|
|
def encode(self,input,errors='strict'):
|
||
|
|
return Codec.encode(input,errors,self.mapping)
|
||
|
|
|
||
|
|
class StreamReader(Codec,codecs.StreamReader):
|
||
|
|
|
||
|
|
def __init__(self,stream,errors='strict',mapping=None):
|
||
|
|
codecs.StreamReader.__init__(self,stream,errors)
|
||
|
|
self.mapping = mapping
|
||
|
|
|
||
|
|
def decode(self,input,errors='strict'):
|
||
|
|
return Codec.decode(input,errors,self.mapping)
|
||
|
|
|
||
|
|
### encodings module API
|
||
|
|
|
||
|
|
def getregentry():
|
||
|
|
return codecs.CodecInfo(
|
||
|
|
name='charmap',
|
||
|
|
encode=Codec.encode,
|
||
|
|
decode=Codec.decode,
|
||
|
|
incrementalencoder=IncrementalEncoder,
|
||
|
|
incrementaldecoder=IncrementalDecoder,
|
||
|
|
streamwriter=StreamWriter,
|
||
|
|
streamreader=StreamReader,
|
||
|
|
)
|