Lib/encodings/ascii.py

   1 """ Python 'ascii' Codec
   2
   3
   4 Written by Marc-Andre Lemburg (mal@lemburg.com).
   5
   6 (c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
   7
   8 """
   9 import codecs
  10
  11 ### Codec APIs
  12
  13 class Codec(codecs.Codec):
  14
  15     # Note: Binding these as C functions will result in the class not
  16     # converting them to methods. This is intended.
  17     encode = codecs.ascii_encode
  18     decode = codecs.ascii_decode
  19
  20 class IncrementalEncoder(codecs.IncrementalEncoder):
  21     def encode(self, input, final=False):
  22         return codecs.ascii_encode(input, self.errors)[0]
  23
  24 class IncrementalDecoder(codecs.IncrementalDecoder):
  25     def decode(self, input, final=False):
  26         return codecs.ascii_decode(input, self.errors)[0]
  27
  28 class StreamWriter(Codec,codecs.StreamWriter):
  29     pass
  30
  31 class StreamReader(Codec,codecs.StreamReader):
  32     pass
  33
  34 class StreamConverter(StreamWriter,StreamReader):
  35
  36     encode = codecs.ascii_decode
  37     decode = codecs.ascii_encode
  38
  39 ### encodings module API
  40
  41 def getregentry():
  42     return codecs.CodecInfo(
  43         name='ascii',
  44         encode=Codec.encode,
  45         decode=Codec.decode,
  46         incrementalencoder=IncrementalEncoder,
  47         incrementaldecoder=IncrementalDecoder,
  48         streamwriter=StreamWriter,
  49         streamreader=StreamReader,
  50     )