projects / OpenSPARC-T2-SAM / blame
| Commit | Line | Data |
|---|---|---|
| 920dae64 AT |
1 | """ Python 'utf-16' Codec |
| 2 | ||
| 3 | ||
| 4 | Written by Marc-Andre Lemburg (mal@lemburg.com). | |
| 5 | ||
| 6 | (c) Copyright CNRI, All Rights Reserved. NO WARRANTY. | |
| 7 | ||
| 8 | """ | |
| 9 | import codecs, sys | |
| 10 | ||
| 11 | ### Codec APIs | |
| 12 | ||
| 13 | encode = codecs.utf_16_encode | |
| 14 | ||
| 15 | def decode(input, errors='strict'): | |
| 16 | return codecs.utf_16_decode(input, errors, True) | |
| 17 | ||
| 18 | class StreamWriter(codecs.StreamWriter): | |
| 19 | def __init__(self, stream, errors='strict'): | |
| 20 | self.bom_written = False | |
| 21 | codecs.StreamWriter.__init__(self, stream, errors) | |
| 22 | ||
| 23 | def encode(self, input, errors='strict'): | |
| 24 | self.bom_written = True | |
| 25 | result = codecs.utf_16_encode(input, errors) | |
| 26 | if sys.byteorder == 'little': | |
| 27 | self.encode = codecs.utf_16_le_encode | |
| 28 | else: | |
| 29 | self.encode = codecs.utf_16_be_encode | |
| 30 | return result | |
| 31 | ||
| 32 | class StreamReader(codecs.StreamReader): | |
| 33 | ||
| 34 | def reset(self): | |
| 35 | codecs.StreamReader.reset(self) | |
| 36 | try: | |
| 37 | del self.decode | |
| 38 | except AttributeError: | |
| 39 | pass | |
| 40 | ||
| 41 | def decode(self, input, errors='strict'): | |
| 42 | (object, consumed, byteorder) = \ | |
| 43 | codecs.utf_16_ex_decode(input, errors, 0, False) | |
| 44 | if byteorder == -1: | |
| 45 | self.decode = codecs.utf_16_le_decode | |
| 46 | elif byteorder == 1: | |
| 47 | self.decode = codecs.utf_16_be_decode | |
| 48 | elif consumed>=2: | |
| 49 | raise UnicodeError,"UTF-16 stream does not start with BOM" | |
| 50 | return (object, consumed) | |
| 51 | ||
| 52 | ### encodings module API | |
| 53 | ||
| 54 | def getregentry(): | |
| 55 | ||
| 56 | return (encode,decode,StreamReader,StreamWriter) |