| 1 | n/a | """Codec for quoted-printable encoding. |
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| 2 | n/a | |
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| 3 | n/a | This codec de/encodes from bytes to bytes. |
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| 4 | n/a | """ |
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| 5 | n/a | |
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| 6 | n/a | import codecs |
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| 7 | n/a | import quopri |
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| 8 | n/a | from io import BytesIO |
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| 9 | n/a | |
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| 10 | n/a | def quopri_encode(input, errors='strict'): |
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| 11 | n/a | assert errors == 'strict' |
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| 12 | n/a | f = BytesIO(input) |
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| 13 | n/a | g = BytesIO() |
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| 14 | n/a | quopri.encode(f, g, quotetabs=True) |
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| 15 | n/a | return (g.getvalue(), len(input)) |
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| 16 | n/a | |
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| 17 | n/a | def quopri_decode(input, errors='strict'): |
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| 18 | n/a | assert errors == 'strict' |
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| 19 | n/a | f = BytesIO(input) |
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| 20 | n/a | g = BytesIO() |
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| 21 | n/a | quopri.decode(f, g) |
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| 22 | n/a | return (g.getvalue(), len(input)) |
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| 23 | n/a | |
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| 24 | n/a | class Codec(codecs.Codec): |
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| 25 | n/a | def encode(self, input, errors='strict'): |
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| 26 | n/a | return quopri_encode(input, errors) |
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| 27 | n/a | def decode(self, input, errors='strict'): |
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| 28 | n/a | return quopri_decode(input, errors) |
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| 29 | n/a | |
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| 30 | n/a | class IncrementalEncoder(codecs.IncrementalEncoder): |
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| 31 | n/a | def encode(self, input, final=False): |
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| 32 | n/a | return quopri_encode(input, self.errors)[0] |
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| 33 | n/a | |
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| 34 | n/a | class IncrementalDecoder(codecs.IncrementalDecoder): |
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| 35 | n/a | def decode(self, input, final=False): |
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| 36 | n/a | return quopri_decode(input, self.errors)[0] |
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| 37 | n/a | |
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| 38 | n/a | class StreamWriter(Codec, codecs.StreamWriter): |
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| 39 | n/a | charbuffertype = bytes |
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| 40 | n/a | |
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| 41 | n/a | class StreamReader(Codec, codecs.StreamReader): |
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| 42 | n/a | charbuffertype = bytes |
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| 43 | n/a | |
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| 44 | n/a | # encodings module API |
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| 45 | n/a | |
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| 46 | n/a | def getregentry(): |
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| 47 | n/a | return codecs.CodecInfo( |
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| 48 | n/a | name='quopri', |
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| 49 | n/a | encode=quopri_encode, |
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| 50 | n/a | decode=quopri_decode, |
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| 51 | n/a | incrementalencoder=IncrementalEncoder, |
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| 52 | n/a | incrementaldecoder=IncrementalDecoder, |
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| 53 | n/a | streamwriter=StreamWriter, |
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| 54 | n/a | streamreader=StreamReader, |
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| 55 | n/a | _is_text_encoding=False, |
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| 56 | n/a | ) |
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