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svn+ssh://pythondev@svn.python.org/python/trunk ........ r72404 | walter.doerwald | 2009-05-06 16:28:24 +0200 (Mi, 06 Mai 2009) | 3 lines Issue 3739: The unicode-internal encoder now reports the number of *characters* consumed like any other encoder (instead of the number of bytes). ........ r72406 | walter.doerwald | 2009-05-06 16:32:35 +0200 (Mi, 06 Mai 2009) | 2 lines Add NEWS entry about issue #3739. ........
1148 lines
29 KiB
C
1148 lines
29 KiB
C
/* ------------------------------------------------------------------------
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_codecs -- Provides access to the codec registry and the builtin
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codecs.
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This module should never be imported directly. The standard library
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module "codecs" wraps this builtin module for use within Python.
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The codec registry is accessible via:
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register(search_function) -> None
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lookup(encoding) -> CodecInfo object
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The builtin Unicode codecs use the following interface:
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<encoding>_encode(Unicode_object[,errors='strict']) ->
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(string object, bytes consumed)
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<encoding>_decode(char_buffer_obj[,errors='strict']) ->
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(Unicode object, bytes consumed)
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<encoding>_encode() interfaces also accept non-Unicode object as
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input. The objects are then converted to Unicode using
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PyUnicode_FromObject() prior to applying the conversion.
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These <encoding>s are available: utf_8, unicode_escape,
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raw_unicode_escape, unicode_internal, latin_1, ascii (7-bit),
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mbcs (on win32).
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Written by Marc-Andre Lemburg (mal@lemburg.com).
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Copyright (c) Corporation for National Research Initiatives.
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------------------------------------------------------------------------ */
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#define PY_SSIZE_T_CLEAN
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#include "Python.h"
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/* --- Registry ----------------------------------------------------------- */
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PyDoc_STRVAR(register__doc__,
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"register(search_function)\n\
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\n\
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Register a codec search function. Search functions are expected to take\n\
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one argument, the encoding name in all lower case letters, and return\n\
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a tuple of functions (encoder, decoder, stream_reader, stream_writer)\n\
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(or a CodecInfo object).");
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static
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PyObject *codec_register(PyObject *self, PyObject *search_function)
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{
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if (PyCodec_Register(search_function))
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return NULL;
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(lookup__doc__,
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"lookup(encoding) -> CodecInfo\n\
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\n\
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Looks up a codec tuple in the Python codec registry and returns\n\
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a CodecInfo object.");
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static
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PyObject *codec_lookup(PyObject *self, PyObject *args)
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{
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char *encoding;
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if (!PyArg_ParseTuple(args, "s:lookup", &encoding))
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return NULL;
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return _PyCodec_Lookup(encoding);
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}
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PyDoc_STRVAR(encode__doc__,
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"encode(obj, [encoding[,errors]]) -> object\n\
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\n\
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Encodes obj using the codec registered for encoding. encoding defaults\n\
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to the default encoding. errors may be given to set a different error\n\
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handling scheme. Default is 'strict' meaning that encoding errors raise\n\
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a ValueError. Other possible values are 'ignore', 'replace' and\n\
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'xmlcharrefreplace' as well as any other name registered with\n\
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codecs.register_error that can handle ValueErrors.");
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static PyObject *
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codec_encode(PyObject *self, PyObject *args)
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{
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const char *encoding = NULL;
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const char *errors = NULL;
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PyObject *v;
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if (!PyArg_ParseTuple(args, "O|ss:encode", &v, &encoding, &errors))
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return NULL;
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if (encoding == NULL)
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encoding = PyUnicode_GetDefaultEncoding();
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/* Encode via the codec registry */
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return PyCodec_Encode(v, encoding, errors);
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}
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PyDoc_STRVAR(decode__doc__,
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"decode(obj, [encoding[,errors]]) -> object\n\
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\n\
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Decodes obj using the codec registered for encoding. encoding defaults\n\
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to the default encoding. errors may be given to set a different error\n\
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handling scheme. Default is 'strict' meaning that encoding errors raise\n\
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a ValueError. Other possible values are 'ignore' and 'replace'\n\
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as well as any other name registered with codecs.register_error that is\n\
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able to handle ValueErrors.");
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static PyObject *
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codec_decode(PyObject *self, PyObject *args)
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{
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const char *encoding = NULL;
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const char *errors = NULL;
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PyObject *v;
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if (!PyArg_ParseTuple(args, "O|ss:decode", &v, &encoding, &errors))
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return NULL;
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if (encoding == NULL)
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encoding = PyUnicode_GetDefaultEncoding();
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/* Decode via the codec registry */
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return PyCodec_Decode(v, encoding, errors);
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}
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/* --- Helpers ------------------------------------------------------------ */
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static
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PyObject *codec_tuple(PyObject *unicode,
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Py_ssize_t len)
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{
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PyObject *v;
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if (unicode == NULL)
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return NULL;
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v = Py_BuildValue("On", unicode, len);
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Py_DECREF(unicode);
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return v;
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}
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/* --- String codecs ------------------------------------------------------ */
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static PyObject *
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escape_decode(PyObject *self,
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PyObject *args)
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{
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const char *errors = NULL;
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const char *data;
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Py_ssize_t size;
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if (!PyArg_ParseTuple(args, "s#|z:escape_decode",
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&data, &size, &errors))
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return NULL;
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return codec_tuple(PyBytes_DecodeEscape(data, size, errors, 0, NULL),
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size);
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}
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static PyObject *
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escape_encode(PyObject *self,
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PyObject *args)
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{
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static const char *hexdigits = "0123456789abcdef";
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PyObject *str;
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Py_ssize_t size;
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Py_ssize_t newsize;
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const char *errors = NULL;
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PyObject *v;
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if (!PyArg_ParseTuple(args, "O!|z:escape_encode",
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&PyBytes_Type, &str, &errors))
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return NULL;
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size = PyBytes_GET_SIZE(str);
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newsize = 4*size;
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if (newsize > PY_SSIZE_T_MAX || newsize / 4 != size) {
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PyErr_SetString(PyExc_OverflowError,
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"string is too large to encode");
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return NULL;
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}
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v = PyBytes_FromStringAndSize(NULL, newsize);
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if (v == NULL) {
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return NULL;
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}
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else {
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register Py_ssize_t i;
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register char c;
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register char *p = PyBytes_AS_STRING(v);
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for (i = 0; i < size; i++) {
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/* There's at least enough room for a hex escape */
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assert(newsize - (p - PyBytes_AS_STRING(v)) >= 4);
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c = PyBytes_AS_STRING(str)[i];
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if (c == '\'' || c == '\\')
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*p++ = '\\', *p++ = c;
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else if (c == '\t')
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*p++ = '\\', *p++ = 't';
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else if (c == '\n')
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*p++ = '\\', *p++ = 'n';
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else if (c == '\r')
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*p++ = '\\', *p++ = 'r';
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else if (c < ' ' || c >= 0x7f) {
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*p++ = '\\';
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*p++ = 'x';
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*p++ = hexdigits[(c & 0xf0) >> 4];
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*p++ = hexdigits[c & 0xf];
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}
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else
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*p++ = c;
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}
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*p = '\0';
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if (_PyBytes_Resize(&v, (p - PyBytes_AS_STRING(v)))) {
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return NULL;
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}
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}
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return codec_tuple(v, PyBytes_Size(v));
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}
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/* --- Decoder ------------------------------------------------------------ */
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static PyObject *
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unicode_internal_decode(PyObject *self,
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PyObject *args)
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{
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PyObject *obj;
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const char *errors = NULL;
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const char *data;
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Py_ssize_t size;
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if (!PyArg_ParseTuple(args, "O|z:unicode_internal_decode",
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&obj, &errors))
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return NULL;
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if (PyUnicode_Check(obj)) {
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Py_INCREF(obj);
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return codec_tuple(obj, PyUnicode_GET_SIZE(obj));
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}
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else {
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if (PyObject_AsReadBuffer(obj, (const void **)&data, &size))
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return NULL;
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return codec_tuple(_PyUnicode_DecodeUnicodeInternal(data, size, errors),
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size);
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}
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}
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static PyObject *
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utf_7_decode(PyObject *self,
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PyObject *args)
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{
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Py_buffer pbuf;
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const char *errors = NULL;
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int final = 0;
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Py_ssize_t consumed;
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PyObject *decoded = NULL;
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if (!PyArg_ParseTuple(args, "y*|zi:utf_7_decode",
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&pbuf, &errors, &final))
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return NULL;
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consumed = pbuf.len;
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decoded = PyUnicode_DecodeUTF7Stateful(pbuf.buf, pbuf.len, errors,
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final ? NULL : &consumed);
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PyBuffer_Release(&pbuf);
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if (decoded == NULL)
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return NULL;
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return codec_tuple(decoded, consumed);
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}
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static PyObject *
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utf_8_decode(PyObject *self,
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PyObject *args)
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{
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Py_buffer pbuf;
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const char *errors = NULL;
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int final = 0;
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Py_ssize_t consumed;
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PyObject *decoded = NULL;
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if (!PyArg_ParseTuple(args, "y*|zi:utf_8_decode",
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&pbuf, &errors, &final))
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return NULL;
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consumed = pbuf.len;
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decoded = PyUnicode_DecodeUTF8Stateful(pbuf.buf, pbuf.len, errors,
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final ? NULL : &consumed);
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PyBuffer_Release(&pbuf);
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if (decoded == NULL)
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return NULL;
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return codec_tuple(decoded, consumed);
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}
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static PyObject *
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utf_16_decode(PyObject *self,
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PyObject *args)
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{
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Py_buffer pbuf;
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const char *errors = NULL;
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int byteorder = 0;
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int final = 0;
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Py_ssize_t consumed;
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PyObject *decoded;
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if (!PyArg_ParseTuple(args, "y*|zi:utf_16_decode",
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&pbuf, &errors, &final))
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return NULL;
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consumed = pbuf.len; /* This is overwritten unless final is true. */
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decoded = PyUnicode_DecodeUTF16Stateful(pbuf.buf, pbuf.len, errors,
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&byteorder, final ? NULL : &consumed);
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PyBuffer_Release(&pbuf);
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if (decoded == NULL)
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return NULL;
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return codec_tuple(decoded, consumed);
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}
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static PyObject *
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utf_16_le_decode(PyObject *self,
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PyObject *args)
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{
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Py_buffer pbuf;
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const char *errors = NULL;
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int byteorder = -1;
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int final = 0;
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Py_ssize_t consumed;
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PyObject *decoded = NULL;
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if (!PyArg_ParseTuple(args, "y*|zi:utf_16_le_decode",
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&pbuf, &errors, &final))
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return NULL;
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consumed = pbuf.len; /* This is overwritten unless final is true. */
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decoded = PyUnicode_DecodeUTF16Stateful(pbuf.buf, pbuf.len, errors,
|
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&byteorder, final ? NULL : &consumed);
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PyBuffer_Release(&pbuf);
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if (decoded == NULL)
|
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return NULL;
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return codec_tuple(decoded, consumed);
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}
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static PyObject *
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utf_16_be_decode(PyObject *self,
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PyObject *args)
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{
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Py_buffer pbuf;
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const char *errors = NULL;
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int byteorder = 1;
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int final = 0;
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Py_ssize_t consumed;
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PyObject *decoded = NULL;
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if (!PyArg_ParseTuple(args, "y*|zi:utf_16_be_decode",
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&pbuf, &errors, &final))
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return NULL;
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consumed = pbuf.len; /* This is overwritten unless final is true. */
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decoded = PyUnicode_DecodeUTF16Stateful(pbuf.buf, pbuf.len, errors,
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&byteorder, final ? NULL : &consumed);
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PyBuffer_Release(&pbuf);
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if (decoded == NULL)
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return NULL;
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return codec_tuple(decoded, consumed);
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}
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|
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/* This non-standard version also provides access to the byteorder
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parameter of the builtin UTF-16 codec.
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It returns a tuple (unicode, bytesread, byteorder) with byteorder
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being the value in effect at the end of data.
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*/
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static PyObject *
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utf_16_ex_decode(PyObject *self,
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PyObject *args)
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{
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Py_buffer pbuf;
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const char *errors = NULL;
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int byteorder = 0;
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PyObject *unicode, *tuple;
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int final = 0;
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Py_ssize_t consumed;
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if (!PyArg_ParseTuple(args, "y*|zii:utf_16_ex_decode",
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&pbuf, &errors, &byteorder, &final))
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return NULL;
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consumed = pbuf.len; /* This is overwritten unless final is true. */
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unicode = PyUnicode_DecodeUTF16Stateful(pbuf.buf, pbuf.len, errors,
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&byteorder, final ? NULL : &consumed);
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PyBuffer_Release(&pbuf);
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if (unicode == NULL)
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return NULL;
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tuple = Py_BuildValue("Oni", unicode, consumed, byteorder);
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Py_DECREF(unicode);
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return tuple;
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}
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|
static PyObject *
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utf_32_decode(PyObject *self,
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PyObject *args)
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{
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Py_buffer pbuf;
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const char *errors = NULL;
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int byteorder = 0;
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int final = 0;
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Py_ssize_t consumed;
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PyObject *decoded;
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|
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if (!PyArg_ParseTuple(args, "y*|zi:utf_32_decode",
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&pbuf, &errors, &final))
|
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return NULL;
|
|
consumed = pbuf.len; /* This is overwritten unless final is true. */
|
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decoded = PyUnicode_DecodeUTF32Stateful(pbuf.buf, pbuf.len, errors,
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&byteorder, final ? NULL : &consumed);
|
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PyBuffer_Release(&pbuf);
|
|
if (decoded == NULL)
|
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return NULL;
|
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return codec_tuple(decoded, consumed);
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|
}
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|
|
static PyObject *
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utf_32_le_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
const char *errors = NULL;
|
|
int byteorder = -1;
|
|
int final = 0;
|
|
Py_ssize_t consumed;
|
|
PyObject *decoded;
|
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|
|
if (!PyArg_ParseTuple(args, "y*|zi:utf_32_le_decode",
|
|
&pbuf, &errors, &final))
|
|
return NULL;
|
|
consumed = pbuf.len; /* This is overwritten unless final is true. */
|
|
decoded = PyUnicode_DecodeUTF32Stateful(pbuf.buf, pbuf.len, errors,
|
|
&byteorder, final ? NULL : &consumed);
|
|
PyBuffer_Release(&pbuf);
|
|
if (decoded == NULL)
|
|
return NULL;
|
|
return codec_tuple(decoded, consumed);
|
|
}
|
|
|
|
static PyObject *
|
|
utf_32_be_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
const char *errors = NULL;
|
|
int byteorder = 1;
|
|
int final = 0;
|
|
Py_ssize_t consumed;
|
|
PyObject *decoded;
|
|
|
|
if (!PyArg_ParseTuple(args, "y*|zi:utf_32_be_decode",
|
|
&pbuf, &errors, &final))
|
|
return NULL;
|
|
consumed = pbuf.len; /* This is overwritten unless final is true. */
|
|
decoded = PyUnicode_DecodeUTF32Stateful(pbuf.buf, pbuf.len, errors,
|
|
&byteorder, final ? NULL : &consumed);
|
|
PyBuffer_Release(&pbuf);
|
|
if (decoded == NULL)
|
|
return NULL;
|
|
return codec_tuple(decoded, consumed);
|
|
}
|
|
|
|
/* This non-standard version also provides access to the byteorder
|
|
parameter of the builtin UTF-32 codec.
|
|
|
|
It returns a tuple (unicode, bytesread, byteorder) with byteorder
|
|
being the value in effect at the end of data.
|
|
|
|
*/
|
|
|
|
static PyObject *
|
|
utf_32_ex_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
const char *errors = NULL;
|
|
int byteorder = 0;
|
|
PyObject *unicode, *tuple;
|
|
int final = 0;
|
|
Py_ssize_t consumed;
|
|
|
|
if (!PyArg_ParseTuple(args, "y*|zii:utf_32_ex_decode",
|
|
&pbuf, &errors, &byteorder, &final))
|
|
return NULL;
|
|
consumed = pbuf.len; /* This is overwritten unless final is true. */
|
|
unicode = PyUnicode_DecodeUTF32Stateful(pbuf.buf, pbuf.len, errors,
|
|
&byteorder, final ? NULL : &consumed);
|
|
PyBuffer_Release(&pbuf);
|
|
if (unicode == NULL)
|
|
return NULL;
|
|
tuple = Py_BuildValue("Oni", unicode, consumed, byteorder);
|
|
Py_DECREF(unicode);
|
|
return tuple;
|
|
}
|
|
|
|
static PyObject *
|
|
unicode_escape_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
const char *errors = NULL;
|
|
PyObject *unicode;
|
|
|
|
if (!PyArg_ParseTuple(args, "s*|z:unicode_escape_decode",
|
|
&pbuf, &errors))
|
|
return NULL;
|
|
|
|
unicode = PyUnicode_DecodeUnicodeEscape(pbuf.buf, pbuf.len, errors);
|
|
PyBuffer_Release(&pbuf);
|
|
return codec_tuple(unicode, pbuf.len);
|
|
}
|
|
|
|
static PyObject *
|
|
raw_unicode_escape_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
const char *errors = NULL;
|
|
PyObject *unicode;
|
|
|
|
if (!PyArg_ParseTuple(args, "s*|z:raw_unicode_escape_decode",
|
|
&pbuf, &errors))
|
|
return NULL;
|
|
|
|
unicode = PyUnicode_DecodeRawUnicodeEscape(pbuf.buf, pbuf.len, errors);
|
|
PyBuffer_Release(&pbuf);
|
|
return codec_tuple(unicode, pbuf.len);
|
|
}
|
|
|
|
static PyObject *
|
|
latin_1_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
PyObject *unicode;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "y*|z:latin_1_decode",
|
|
&pbuf, &errors))
|
|
return NULL;
|
|
|
|
unicode = PyUnicode_DecodeLatin1(pbuf.buf, pbuf.len, errors);
|
|
PyBuffer_Release(&pbuf);
|
|
return codec_tuple(unicode, pbuf.len);
|
|
}
|
|
|
|
static PyObject *
|
|
ascii_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
PyObject *unicode;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "y*|z:ascii_decode",
|
|
&pbuf, &errors))
|
|
return NULL;
|
|
|
|
unicode = PyUnicode_DecodeASCII(pbuf.buf, pbuf.len, errors);
|
|
PyBuffer_Release(&pbuf);
|
|
return codec_tuple(unicode, pbuf.len);
|
|
}
|
|
|
|
static PyObject *
|
|
charmap_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
PyObject *unicode;
|
|
const char *errors = NULL;
|
|
PyObject *mapping = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "y*|zO:charmap_decode",
|
|
&pbuf, &errors, &mapping))
|
|
return NULL;
|
|
if (mapping == Py_None)
|
|
mapping = NULL;
|
|
|
|
unicode = PyUnicode_DecodeCharmap(pbuf.buf, pbuf.len, mapping, errors);
|
|
PyBuffer_Release(&pbuf);
|
|
return codec_tuple(unicode, pbuf.len);
|
|
}
|
|
|
|
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
|
|
|
|
static PyObject *
|
|
mbcs_decode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pbuf;
|
|
const char *errors = NULL;
|
|
int final = 0;
|
|
Py_ssize_t consumed;
|
|
PyObject *decoded = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "y*|zi:mbcs_decode",
|
|
&pbuf, &errors, &final))
|
|
return NULL;
|
|
consumed = pbuf.len;
|
|
|
|
decoded = PyUnicode_DecodeMBCSStateful(pbuf.buf, pbuf.len, errors,
|
|
final ? NULL : &consumed);
|
|
PyBuffer_Release(&pbuf);
|
|
if (decoded == NULL)
|
|
return NULL;
|
|
return codec_tuple(decoded, consumed);
|
|
}
|
|
|
|
#endif /* MS_WINDOWS */
|
|
|
|
/* --- Encoder ------------------------------------------------------------ */
|
|
|
|
static PyObject *
|
|
readbuffer_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
Py_buffer pdata;
|
|
const char *data;
|
|
Py_ssize_t size;
|
|
const char *errors = NULL;
|
|
PyObject *result;
|
|
|
|
if (!PyArg_ParseTuple(args, "s*|z:readbuffer_encode",
|
|
&pdata, &errors))
|
|
return NULL;
|
|
data = pdata.buf;
|
|
size = pdata.len;
|
|
|
|
result = PyBytes_FromStringAndSize(data, size);
|
|
PyBuffer_Release(&pdata);
|
|
return codec_tuple(result, size);
|
|
}
|
|
|
|
static PyObject *
|
|
charbuffer_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
const char *data;
|
|
Py_ssize_t size;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "t#|z:charbuffer_encode",
|
|
&data, &size, &errors))
|
|
return NULL;
|
|
|
|
return codec_tuple(PyBytes_FromStringAndSize(data, size), size);
|
|
}
|
|
|
|
static PyObject *
|
|
unicode_internal_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *obj;
|
|
const char *errors = NULL;
|
|
const char *data;
|
|
Py_ssize_t size;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:unicode_internal_encode",
|
|
&obj, &errors))
|
|
return NULL;
|
|
|
|
if (PyUnicode_Check(obj)) {
|
|
data = PyUnicode_AS_DATA(obj);
|
|
size = PyUnicode_GET_DATA_SIZE(obj);
|
|
return codec_tuple(PyBytes_FromStringAndSize(data, size),
|
|
PyUnicode_GET_SIZE(obj));
|
|
}
|
|
else {
|
|
if (PyObject_AsReadBuffer(obj, (const void **)&data, &size))
|
|
return NULL;
|
|
return codec_tuple(PyBytes_FromStringAndSize(data, size), size);
|
|
}
|
|
}
|
|
|
|
static PyObject *
|
|
utf_7_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:utf_7_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUTF7(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
0,
|
|
0,
|
|
errors),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
utf_8_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:utf_8_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUTF8(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
/* This version provides access to the byteorder parameter of the
|
|
builtin UTF-16 codecs as optional third argument. It defaults to 0
|
|
which means: use the native byte order and prepend the data with a
|
|
BOM mark.
|
|
|
|
*/
|
|
|
|
static PyObject *
|
|
utf_16_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
int byteorder = 0;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|zi:utf_16_encode",
|
|
&str, &errors, &byteorder))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUTF16(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors,
|
|
byteorder),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
utf_16_le_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:utf_16_le_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUTF16(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors,
|
|
-1),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
utf_16_be_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:utf_16_be_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUTF16(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors,
|
|
+1),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
/* This version provides access to the byteorder parameter of the
|
|
builtin UTF-32 codecs as optional third argument. It defaults to 0
|
|
which means: use the native byte order and prepend the data with a
|
|
BOM mark.
|
|
|
|
*/
|
|
|
|
static PyObject *
|
|
utf_32_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
int byteorder = 0;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|zi:utf_32_encode",
|
|
&str, &errors, &byteorder))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUTF32(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors,
|
|
byteorder),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
utf_32_le_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:utf_32_le_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUTF32(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors,
|
|
-1),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
utf_32_be_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:utf_32_be_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUTF32(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors,
|
|
+1),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
unicode_escape_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:unicode_escape_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeUnicodeEscape(PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str)),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
raw_unicode_escape_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:raw_unicode_escape_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeRawUnicodeEscape(
|
|
PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str)),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
latin_1_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:latin_1_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeLatin1(
|
|
PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
ascii_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:ascii_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeASCII(
|
|
PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject *
|
|
charmap_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
PyObject *mapping = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|zO:charmap_encode",
|
|
&str, &errors, &mapping))
|
|
return NULL;
|
|
if (mapping == Py_None)
|
|
mapping = NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeCharmap(
|
|
PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
mapping,
|
|
errors),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
static PyObject*
|
|
charmap_build(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *map;
|
|
if (!PyArg_ParseTuple(args, "U:charmap_build", &map))
|
|
return NULL;
|
|
return PyUnicode_BuildEncodingMap(map);
|
|
}
|
|
|
|
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
|
|
|
|
static PyObject *
|
|
mbcs_encode(PyObject *self,
|
|
PyObject *args)
|
|
{
|
|
PyObject *str, *v;
|
|
const char *errors = NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "O|z:mbcs_encode",
|
|
&str, &errors))
|
|
return NULL;
|
|
|
|
str = PyUnicode_FromObject(str);
|
|
if (str == NULL)
|
|
return NULL;
|
|
v = codec_tuple(PyUnicode_EncodeMBCS(
|
|
PyUnicode_AS_UNICODE(str),
|
|
PyUnicode_GET_SIZE(str),
|
|
errors),
|
|
PyUnicode_GET_SIZE(str));
|
|
Py_DECREF(str);
|
|
return v;
|
|
}
|
|
|
|
#endif /* MS_WINDOWS */
|
|
|
|
/* --- Error handler registry --------------------------------------------- */
|
|
|
|
PyDoc_STRVAR(register_error__doc__,
|
|
"register_error(errors, handler)\n\
|
|
\n\
|
|
Register the specified error handler under the name\n\
|
|
errors. handler must be a callable object, that\n\
|
|
will be called with an exception instance containing\n\
|
|
information about the location of the encoding/decoding\n\
|
|
error and must return a (replacement, new position) tuple.");
|
|
|
|
static PyObject *register_error(PyObject *self, PyObject *args)
|
|
{
|
|
const char *name;
|
|
PyObject *handler;
|
|
|
|
if (!PyArg_ParseTuple(args, "sO:register_error",
|
|
&name, &handler))
|
|
return NULL;
|
|
if (PyCodec_RegisterError(name, handler))
|
|
return NULL;
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
PyDoc_STRVAR(lookup_error__doc__,
|
|
"lookup_error(errors) -> handler\n\
|
|
\n\
|
|
Return the error handler for the specified error handling name\n\
|
|
or raise a LookupError, if no handler exists under this name.");
|
|
|
|
static PyObject *lookup_error(PyObject *self, PyObject *args)
|
|
{
|
|
const char *name;
|
|
|
|
if (!PyArg_ParseTuple(args, "s:lookup_error",
|
|
&name))
|
|
return NULL;
|
|
return PyCodec_LookupError(name);
|
|
}
|
|
|
|
/* --- Module API --------------------------------------------------------- */
|
|
|
|
static PyMethodDef _codecs_functions[] = {
|
|
{"register", codec_register, METH_O,
|
|
register__doc__},
|
|
{"lookup", codec_lookup, METH_VARARGS,
|
|
lookup__doc__},
|
|
{"encode", codec_encode, METH_VARARGS,
|
|
encode__doc__},
|
|
{"decode", codec_decode, METH_VARARGS,
|
|
decode__doc__},
|
|
{"escape_encode", escape_encode, METH_VARARGS},
|
|
{"escape_decode", escape_decode, METH_VARARGS},
|
|
{"utf_8_encode", utf_8_encode, METH_VARARGS},
|
|
{"utf_8_decode", utf_8_decode, METH_VARARGS},
|
|
{"utf_7_encode", utf_7_encode, METH_VARARGS},
|
|
{"utf_7_decode", utf_7_decode, METH_VARARGS},
|
|
{"utf_16_encode", utf_16_encode, METH_VARARGS},
|
|
{"utf_16_le_encode", utf_16_le_encode, METH_VARARGS},
|
|
{"utf_16_be_encode", utf_16_be_encode, METH_VARARGS},
|
|
{"utf_16_decode", utf_16_decode, METH_VARARGS},
|
|
{"utf_16_le_decode", utf_16_le_decode, METH_VARARGS},
|
|
{"utf_16_be_decode", utf_16_be_decode, METH_VARARGS},
|
|
{"utf_16_ex_decode", utf_16_ex_decode, METH_VARARGS},
|
|
{"utf_32_encode", utf_32_encode, METH_VARARGS},
|
|
{"utf_32_le_encode", utf_32_le_encode, METH_VARARGS},
|
|
{"utf_32_be_encode", utf_32_be_encode, METH_VARARGS},
|
|
{"utf_32_decode", utf_32_decode, METH_VARARGS},
|
|
{"utf_32_le_decode", utf_32_le_decode, METH_VARARGS},
|
|
{"utf_32_be_decode", utf_32_be_decode, METH_VARARGS},
|
|
{"utf_32_ex_decode", utf_32_ex_decode, METH_VARARGS},
|
|
{"unicode_escape_encode", unicode_escape_encode, METH_VARARGS},
|
|
{"unicode_escape_decode", unicode_escape_decode, METH_VARARGS},
|
|
{"unicode_internal_encode", unicode_internal_encode, METH_VARARGS},
|
|
{"unicode_internal_decode", unicode_internal_decode, METH_VARARGS},
|
|
{"raw_unicode_escape_encode", raw_unicode_escape_encode, METH_VARARGS},
|
|
{"raw_unicode_escape_decode", raw_unicode_escape_decode, METH_VARARGS},
|
|
{"latin_1_encode", latin_1_encode, METH_VARARGS},
|
|
{"latin_1_decode", latin_1_decode, METH_VARARGS},
|
|
{"ascii_encode", ascii_encode, METH_VARARGS},
|
|
{"ascii_decode", ascii_decode, METH_VARARGS},
|
|
{"charmap_encode", charmap_encode, METH_VARARGS},
|
|
{"charmap_decode", charmap_decode, METH_VARARGS},
|
|
{"charmap_build", charmap_build, METH_VARARGS},
|
|
{"readbuffer_encode", readbuffer_encode, METH_VARARGS},
|
|
{"charbuffer_encode", charbuffer_encode, METH_VARARGS},
|
|
#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
|
|
{"mbcs_encode", mbcs_encode, METH_VARARGS},
|
|
{"mbcs_decode", mbcs_decode, METH_VARARGS},
|
|
#endif
|
|
{"register_error", register_error, METH_VARARGS,
|
|
register_error__doc__},
|
|
{"lookup_error", lookup_error, METH_VARARGS,
|
|
lookup_error__doc__},
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
static struct PyModuleDef codecsmodule = {
|
|
PyModuleDef_HEAD_INIT,
|
|
"_codecs",
|
|
NULL,
|
|
-1,
|
|
_codecs_functions,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
PyMODINIT_FUNC
|
|
PyInit__codecs(void)
|
|
{
|
|
return PyModule_Create(&codecsmodule);
|
|
}
|