Mercurial > repos > yating-l > jbrowsearchivecreator
comparison test/lib/python2.7/encodings/hex_codec.py @ 3:7d1a9a91b989 draft
planemo upload for repository https://github.com/Yating-L/jbrowse-archive-creator.git commit d583ac16a6c6942730ea536eb59cc37941816030-dirty
| author | yating-l |
|---|---|
| date | Thu, 18 May 2017 18:37:28 -0400 |
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| children |
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| 2:3e2160197902 | 3:7d1a9a91b989 |
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| 1 """ Python 'hex_codec' Codec - 2-digit hex content transfer encoding | |
| 2 | |
| 3 Unlike most of the other codecs which target Unicode, this codec | |
| 4 will return Python string objects for both encode and decode. | |
| 5 | |
| 6 Written by Marc-Andre Lemburg (mal@lemburg.com). | |
| 7 | |
| 8 """ | |
| 9 import codecs, binascii | |
| 10 | |
| 11 ### Codec APIs | |
| 12 | |
| 13 def hex_encode(input,errors='strict'): | |
| 14 | |
| 15 """ Encodes the object input and returns a tuple (output | |
| 16 object, length consumed). | |
| 17 | |
| 18 errors defines the error handling to apply. It defaults to | |
| 19 'strict' handling which is the only currently supported | |
| 20 error handling for this codec. | |
| 21 | |
| 22 """ | |
| 23 assert errors == 'strict' | |
| 24 output = binascii.b2a_hex(input) | |
| 25 return (output, len(input)) | |
| 26 | |
| 27 def hex_decode(input,errors='strict'): | |
| 28 | |
| 29 """ Decodes the object input and returns a tuple (output | |
| 30 object, length consumed). | |
| 31 | |
| 32 input must be an object which provides the bf_getreadbuf | |
| 33 buffer slot. Python strings, buffer objects and memory | |
| 34 mapped files are examples of objects providing this slot. | |
| 35 | |
| 36 errors defines the error handling to apply. It defaults to | |
| 37 'strict' handling which is the only currently supported | |
| 38 error handling for this codec. | |
| 39 | |
| 40 """ | |
| 41 assert errors == 'strict' | |
| 42 output = binascii.a2b_hex(input) | |
| 43 return (output, len(input)) | |
| 44 | |
| 45 class Codec(codecs.Codec): | |
| 46 | |
| 47 def encode(self, input,errors='strict'): | |
| 48 return hex_encode(input,errors) | |
| 49 def decode(self, input,errors='strict'): | |
| 50 return hex_decode(input,errors) | |
| 51 | |
| 52 class IncrementalEncoder(codecs.IncrementalEncoder): | |
| 53 def encode(self, input, final=False): | |
| 54 assert self.errors == 'strict' | |
| 55 return binascii.b2a_hex(input) | |
| 56 | |
| 57 class IncrementalDecoder(codecs.IncrementalDecoder): | |
| 58 def decode(self, input, final=False): | |
| 59 assert self.errors == 'strict' | |
| 60 return binascii.a2b_hex(input) | |
| 61 | |
| 62 class StreamWriter(Codec,codecs.StreamWriter): | |
| 63 pass | |
| 64 | |
| 65 class StreamReader(Codec,codecs.StreamReader): | |
| 66 pass | |
| 67 | |
| 68 ### encodings module API | |
| 69 | |
| 70 def getregentry(): | |
| 71 return codecs.CodecInfo( | |
| 72 name='hex', | |
| 73 encode=hex_encode, | |
| 74 decode=hex_decode, | |
| 75 incrementalencoder=IncrementalEncoder, | |
| 76 incrementaldecoder=IncrementalDecoder, | |
| 77 streamwriter=StreamWriter, | |
| 78 streamreader=StreamReader, | |
| 79 _is_text_encoding=False, | |
| 80 ) |
