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1 """ Generic Python Character Mapping Codec.
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2
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3 Use this codec directly rather than through the automatic
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4 conversion mechanisms supplied by unicode() and .encode().
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5
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6
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7 Written by Marc-Andre Lemburg (mal@lemburg.com).
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8
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9 (c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
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10
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11 """#"
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12
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13 import codecs
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14
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15 ### Codec APIs
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16
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17 class Codec(codecs.Codec):
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18
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19 # Note: Binding these as C functions will result in the class not
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20 # converting them to methods. This is intended.
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21 encode = codecs.charmap_encode
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22 decode = codecs.charmap_decode
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23
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24 class IncrementalEncoder(codecs.IncrementalEncoder):
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25 def __init__(self, errors='strict', mapping=None):
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26 codecs.IncrementalEncoder.__init__(self, errors)
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27 self.mapping = mapping
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28
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29 def encode(self, input, final=False):
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30 return codecs.charmap_encode(input, self.errors, self.mapping)[0]
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31
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32 class IncrementalDecoder(codecs.IncrementalDecoder):
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33 def __init__(self, errors='strict', mapping=None):
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34 codecs.IncrementalDecoder.__init__(self, errors)
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35 self.mapping = mapping
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36
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37 def decode(self, input, final=False):
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38 return codecs.charmap_decode(input, self.errors, self.mapping)[0]
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39
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40 class StreamWriter(Codec,codecs.StreamWriter):
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41
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42 def __init__(self,stream,errors='strict',mapping=None):
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43 codecs.StreamWriter.__init__(self,stream,errors)
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44 self.mapping = mapping
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45
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46 def encode(self,input,errors='strict'):
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47 return Codec.encode(input,errors,self.mapping)
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48
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49 class StreamReader(Codec,codecs.StreamReader):
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50
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51 def __init__(self,stream,errors='strict',mapping=None):
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52 codecs.StreamReader.__init__(self,stream,errors)
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53 self.mapping = mapping
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54
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55 def decode(self,input,errors='strict'):
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56 return Codec.decode(input,errors,self.mapping)
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57
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58 ### encodings module API
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59
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60 def getregentry():
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61 return codecs.CodecInfo(
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62 name='charmap',
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63 encode=Codec.encode,
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64 decode=Codec.decode,
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65 incrementalencoder=IncrementalEncoder,
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66 incrementaldecoder=IncrementalDecoder,
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67 streamwriter=StreamWriter,
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68 streamreader=StreamReader,
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69 )
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