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Patch #1436130: codecs.lookup() now returns a CodecInfo object (a subclass

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of tuple) that provides incremental decoders and encoders (a way to use
stateful codecs without the stream API). Functions
codecs.getincrementaldecoder() and codecs.getincrementalencoder() have
been added.
This commit is contained in:
Walter Dörwald 2006-03-15 11:35:15 +00:00
parent e2ebb2d7f7
commit abb02e5994
98 changed files with 2212 additions and 420 deletions
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50
Python/codecs.c
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@ -260,6 +260,56 @@ PyObject *PyCodec_Decoder(const char *encoding)
return NULL;
}
PyObject *PyCodec_IncrementalEncoder(const char *encoding,
const char *errors)
{
PyObject *codecs, *ret, *encoder;
codecs = _PyCodec_Lookup(encoding);
if (codecs == NULL)
goto onError;
encoder = PyObject_GetAttrString(codecs, "incrementalencoder");
if (encoder == NULL) {
Py_DECREF(codecs);
return NULL;
}
if (errors)
ret = PyObject_CallFunction(encoder, "O", errors);
else
ret = PyObject_CallFunction(encoder, NULL);
Py_DECREF(encoder);
Py_DECREF(codecs);
return ret;
onError:
return NULL;
}
PyObject *PyCodec_IncrementalDecoder(const char *encoding,
const char *errors)
{
PyObject *codecs, *ret, *decoder;
codecs = _PyCodec_Lookup(encoding);
if (codecs == NULL)
goto onError;
decoder = PyObject_GetAttrString(codecs, "incrementaldecoder");
if (decoder == NULL) {
Py_DECREF(codecs);
return NULL;
}
if (errors)
ret = PyObject_CallFunction(decoder, "O", errors);
else
ret = PyObject_CallFunction(decoder, NULL);
Py_DECREF(decoder);
Py_DECREF(codecs);
return ret;
onError:
return NULL;
}
PyObject *PyCodec_StreamReader(const char *encoding,
PyObject *stream,
const char *errors)