1 files changed, 80 insertions, 0 deletions
diff --git a/lib/python2.7/encodings/hex_codec.py b/lib/python2.7/encodings/hex_codec.py
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+++ b/lib/python2.7/encodings/hex_codec.py
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+""" Python 'hex_codec' Codec - 2-digit hex content transfer 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, binascii
+
+### Codec APIs
+
+def hex_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 = binascii.b2a_hex(input)
+    return (output, len(input))
+
+def hex_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 = binascii.a2b_hex(input)
+    return (output, len(input))
+
+class Codec(codecs.Codec):
+
+    def encode(self, input,errors='strict'):
+        return hex_encode(input,errors)
+    def decode(self, input,errors='strict'):
+        return hex_decode(input,errors)
+
+class IncrementalEncoder(codecs.IncrementalEncoder):
+    def encode(self, input, final=False):
+        assert self.errors == 'strict'
+        return binascii.b2a_hex(input)
+
+class IncrementalDecoder(codecs.IncrementalDecoder):
+    def decode(self, input, final=False):
+        assert self.errors == 'strict'
+        return binascii.a2b_hex(input)
+
+class StreamWriter(Codec,codecs.StreamWriter):
+    pass
+
+class StreamReader(Codec,codecs.StreamReader):
+    pass
+
+### encodings module API
+
+def getregentry():
+    return codecs.CodecInfo(
+        name='hex',
+        encode=hex_encode,
+        decode=hex_decode,
+        incrementalencoder=IncrementalEncoder,
+        incrementaldecoder=IncrementalDecoder,
+        streamwriter=StreamWriter,
+        streamreader=StreamReader,
+        _is_text_encoding=False,
+    )