jpayne@69: """ Python 'undefined' Codec
jpayne@69: 
jpayne@69:     This codec will always raise a ValueError exception when being
jpayne@69:     used. It is intended for use by the site.py file to switch off
jpayne@69:     automatic string to Unicode coercion.
jpayne@69: 
jpayne@69: Written by Marc-Andre Lemburg (mal@lemburg.com).
jpayne@69: 
jpayne@69: (c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
jpayne@69: 
jpayne@69: """
jpayne@69: import codecs
jpayne@69: 
jpayne@69: ### Codec APIs
jpayne@69: 
jpayne@69: class Codec(codecs.Codec):
jpayne@69: 
jpayne@69:     def encode(self,input,errors='strict'):
jpayne@69:         raise UnicodeError("undefined encoding")
jpayne@69: 
jpayne@69:     def decode(self,input,errors='strict'):
jpayne@69:         raise UnicodeError("undefined encoding")
jpayne@69: 
jpayne@69: class IncrementalEncoder(codecs.IncrementalEncoder):
jpayne@69:     def encode(self, input, final=False):
jpayne@69:         raise UnicodeError("undefined encoding")
jpayne@69: 
jpayne@69: class IncrementalDecoder(codecs.IncrementalDecoder):
jpayne@69:     def decode(self, input, final=False):
jpayne@69:         raise UnicodeError("undefined encoding")
jpayne@69: 
jpayne@69: class StreamWriter(Codec,codecs.StreamWriter):
jpayne@69:     pass
jpayne@69: 
jpayne@69: class StreamReader(Codec,codecs.StreamReader):
jpayne@69:     pass
jpayne@69: 
jpayne@69: ### encodings module API
jpayne@69: 
jpayne@69: def getregentry():
jpayne@69:     return codecs.CodecInfo(
jpayne@69:         name='undefined',
jpayne@69:         encode=Codec().encode,
jpayne@69:         decode=Codec().decode,
jpayne@69:         incrementalencoder=IncrementalEncoder,
jpayne@69:         incrementaldecoder=IncrementalDecoder,
jpayne@69:         streamwriter=StreamWriter,
jpayne@69:         streamreader=StreamReader,
jpayne@69:     )