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| author | Daryl McDaniel <edk2-lists@mc2research.org> | 2015-11-07 19:33:58 +0000 |
|---|---|---|
| committer | darylm503 <darylm503@Edk2> | 2015-11-07 19:33:58 +0000 |
| commit | 3257aa99321d745773a6bd1bd4ce7f6fafe74411 (patch) | |
| tree | cd2d916737c121190e0b56eae820e02ed0832ab6 /AppPkg/Applications/Python/Python-2.7.10/Lib/encodings/zlib_codec.py | |
| parent | 53b2ba5790b57b3dcdfbb9fa5835a979d94908fa (diff) | |
| download | edk2-platforms-3257aa99321d745773a6bd1bd4ce7f6fafe74411.tar.xz | |
AppPkg/Applications/Python/Python-2.7.10: Initial Checkin part 4/5.
The Lib directory from the cPython 2.7.10 distribution.
These files are unchanged and set the baseline for subsequent commits.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Daryl McDaniel <edk2-lists@mc2research.org>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18740 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'AppPkg/Applications/Python/Python-2.7.10/Lib/encodings/zlib_codec.py')
| -rw-r--r-- | AppPkg/Applications/Python/Python-2.7.10/Lib/encodings/zlib_codec.py | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/AppPkg/Applications/Python/Python-2.7.10/Lib/encodings/zlib_codec.py b/AppPkg/Applications/Python/Python-2.7.10/Lib/encodings/zlib_codec.py new file mode 100644 index 0000000000..82557d047a --- /dev/null +++ b/AppPkg/Applications/Python/Python-2.7.10/Lib/encodings/zlib_codec.py @@ -0,0 +1,102 @@ +""" Python 'zlib_codec' Codec - zlib compression encoding
+
+ Unlike most of the other codecs which target Unicode, this codec
+ will return Python string objects for both encode and decode.
+
+ Written by Marc-Andre Lemburg (mal@lemburg.com).
+
+"""
+import codecs
+import zlib # this codec needs the optional zlib module !
+
+### Codec APIs
+
+def zlib_encode(input,errors='strict'):
+
+ """ Encodes the object input and returns a tuple (output
+ object, length consumed).
+
+ errors defines the error handling to apply. It defaults to
+ 'strict' handling which is the only currently supported
+ error handling for this codec.
+
+ """
+ assert errors == 'strict'
+ output = zlib.compress(input)
+ return (output, len(input))
+
+def zlib_decode(input,errors='strict'):
+
+ """ Decodes the object input and returns a tuple (output
+ object, length consumed).
+
+ input must be an object which provides the bf_getreadbuf
+ buffer slot. Python strings, buffer objects and memory
+ mapped files are examples of objects providing this slot.
+
+ errors defines the error handling to apply. It defaults to
+ 'strict' handling which is the only currently supported
+ error handling for this codec.
+
+ """
+ assert errors == 'strict'
+ output = zlib.decompress(input)
+ return (output, len(input))
+
+class Codec(codecs.Codec):
+
+ def encode(self, input, errors='strict'):
+ return zlib_encode(input, errors)
+ def decode(self, input, errors='strict'):
+ return zlib_decode(input, errors)
+
+class IncrementalEncoder(codecs.IncrementalEncoder):
+ def __init__(self, errors='strict'):
+ assert errors == 'strict'
+ self.errors = errors
+ self.compressobj = zlib.compressobj()
+
+ def encode(self, input, final=False):
+ if final:
+ c = self.compressobj.compress(input)
+ return c + self.compressobj.flush()
+ else:
+ return self.compressobj.compress(input)
+
+ def reset(self):
+ self.compressobj = zlib.compressobj()
+
+class IncrementalDecoder(codecs.IncrementalDecoder):
+ def __init__(self, errors='strict'):
+ assert errors == 'strict'
+ self.errors = errors
+ self.decompressobj = zlib.decompressobj()
+
+ def decode(self, input, final=False):
+ if final:
+ c = self.decompressobj.decompress(input)
+ return c + self.decompressobj.flush()
+ else:
+ return self.decompressobj.decompress(input)
+
+ def reset(self):
+ self.decompressobj = zlib.decompressobj()
+
+class StreamWriter(Codec,codecs.StreamWriter):
+ pass
+
+class StreamReader(Codec,codecs.StreamReader):
+ pass
+
+### encodings module API
+
+def getregentry():
+ return codecs.CodecInfo(
+ name='zlib',
+ encode=zlib_encode,
+ decode=zlib_decode,
+ incrementalencoder=IncrementalEncoder,
+ incrementaldecoder=IncrementalDecoder,
+ streamreader=StreamReader,
+ streamwriter=StreamWriter,
+ )
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