Guido van Rossum | acfdf15 | 2001-05-15 15:34:07 +0000 | [diff] [blame] | 1 | """Codec for quoted-printable encoding. |
| 2 | |
| 3 | Like base64 and rot13, this returns Python strings, not Unicode. |
| 4 | """ |
| 5 | |
| 6 | import codecs, quopri |
| 7 | try: |
| 8 | from cStringIO import StringIO |
| 9 | except ImportError: |
| 10 | from StringIO import StringIO |
| 11 | |
| 12 | def quopri_encode(input, errors='strict'): |
| 13 | """Encode the input, returning a tuple (output object, length consumed). |
| 14 | |
| 15 | errors defines the error handling to apply. It defaults to |
| 16 | 'strict' handling which is the only currently supported |
| 17 | error handling for this codec. |
| 18 | |
| 19 | """ |
| 20 | assert errors == 'strict' |
| 21 | f = StringIO(input) |
| 22 | g = StringIO() |
| 23 | quopri.encode(f, g, 1) |
| 24 | output = g.getvalue() |
| 25 | return (output, len(input)) |
| 26 | |
| 27 | def quopri_decode(input, errors='strict'): |
| 28 | """Decode the input, returning a tuple (output object, length consumed). |
| 29 | |
| 30 | errors defines the error handling to apply. It defaults to |
| 31 | 'strict' handling which is the only currently supported |
| 32 | error handling for this codec. |
| 33 | |
| 34 | """ |
| 35 | assert errors == 'strict' |
| 36 | f = StringIO(input) |
| 37 | g = StringIO() |
| 38 | quopri.decode(f, g) |
| 39 | output = g.getvalue() |
| 40 | return (output, len(input)) |
| 41 | |
| 42 | class Codec(codecs.Codec): |
| 43 | |
Marc-André Lemburg | 26e3b68 | 2001-09-20 10:33:38 +0000 | [diff] [blame^] | 44 | def encode(self, input,errors='strict'): |
| 45 | return quopri_encode(input,errors) |
| 46 | def decode(self, input,errors='strict'): |
| 47 | return quopri_decode(input,errors) |
Guido van Rossum | acfdf15 | 2001-05-15 15:34:07 +0000 | [diff] [blame] | 48 | |
| 49 | class StreamWriter(Codec, codecs.StreamWriter): |
| 50 | pass |
| 51 | |
| 52 | class StreamReader(Codec,codecs.StreamReader): |
| 53 | pass |
| 54 | |
| 55 | # encodings module API |
| 56 | |
| 57 | def getregentry(): |
| 58 | return (quopri_encode, quopri_decode, StreamReader, StreamWriter) |