cpython/Modules/cjkcodecs/multibytecodec.h

139 lines
3.5 KiB
C
Raw Normal View History

/*
* multibytecodec.h: Common Multibyte Codec Implementation
*
* Written by Hye-Shik Chang <perky@FreeBSD.org>
*/
#ifndef _PYTHON_MULTIBYTECODEC_H_
#define _PYTHON_MULTIBYTECODEC_H_
#ifdef __cplusplus
extern "C" {
#endif
#ifdef uint32_t
typedef uint32_t ucs4_t;
#else
typedef unsigned int ucs4_t;
#endif
#ifdef uint16_t
typedef uint16_t ucs2_t, DBCHAR;
#else
typedef unsigned short ucs2_t, DBCHAR;
#endif
typedef union {
void *p;
int i;
unsigned char c[8];
ucs2_t u2[4];
ucs4_t u4[2];
} MultibyteCodec_State;
typedef int (*mbcodec_init)(const void *config);
typedef Py_ssize_t (*mbencode_func)(MultibyteCodec_State *state,
const void *config,
const Py_UNICODE **inbuf, Py_ssize_t inleft,
unsigned char **outbuf, Py_ssize_t outleft,
int flags);
typedef int (*mbencodeinit_func)(MultibyteCodec_State *state,
const void *config);
typedef Py_ssize_t (*mbencodereset_func)(MultibyteCodec_State *state,
const void *config,
unsigned char **outbuf, Py_ssize_t outleft);
typedef Py_ssize_t (*mbdecode_func)(MultibyteCodec_State *state,
const void *config,
const unsigned char **inbuf, Py_ssize_t inleft,
Py_UNICODE **outbuf, Py_ssize_t outleft);
typedef int (*mbdecodeinit_func)(MultibyteCodec_State *state,
const void *config);
typedef Py_ssize_t (*mbdecodereset_func)(MultibyteCodec_State *state,
const void *config);
typedef struct {
const char *encoding;
const void *config;
mbcodec_init codecinit;
mbencode_func encode;
mbencodeinit_func encinit;
mbencodereset_func encreset;
mbdecode_func decode;
mbdecodeinit_func decinit;
mbdecodereset_func decreset;
} MultibyteCodec;
typedef struct {
PyObject_HEAD
MultibyteCodec *codec;
} MultibyteCodecObject;
#define MultibyteCodec_Check(op) ((op)->ob_type == &MultibyteCodec_Type)
#define _MultibyteStatefulCodec_HEAD \
PyObject_HEAD \
MultibyteCodec *codec; \
MultibyteCodec_State state; \
PyObject *errors;
typedef struct {
_MultibyteStatefulCodec_HEAD
} MultibyteStatefulCodecContext;
#define MAXENCPENDING 2
#define _MultibyteStatefulEncoder_HEAD \
_MultibyteStatefulCodec_HEAD \
Py_UNICODE pending[MAXENCPENDING]; \
Py_ssize_t pendingsize;
typedef struct {
_MultibyteStatefulEncoder_HEAD
} MultibyteStatefulEncoderContext;
#define MAXDECPENDING 8
#define _MultibyteStatefulDecoder_HEAD \
_MultibyteStatefulCodec_HEAD \
unsigned char pending[MAXDECPENDING]; \
Py_ssize_t pendingsize;
typedef struct {
_MultibyteStatefulDecoder_HEAD
} MultibyteStatefulDecoderContext;
typedef struct {
_MultibyteStatefulEncoder_HEAD
} MultibyteIncrementalEncoderObject;
typedef struct {
_MultibyteStatefulDecoder_HEAD
} MultibyteIncrementalDecoderObject;
typedef struct {
_MultibyteStatefulDecoder_HEAD
PyObject *stream;
} MultibyteStreamReaderObject;
typedef struct {
_MultibyteStatefulEncoder_HEAD
PyObject *stream;
} MultibyteStreamWriterObject;
/* positive values for illegal sequences */
#define MBERR_TOOSMALL (-1) /* insufficient output buffer space */
#define MBERR_TOOFEW (-2) /* incomplete input buffer */
#define MBERR_INTERNAL (-3) /* internal runtime error */
#define ERROR_STRICT (PyObject *)(1)
#define ERROR_IGNORE (PyObject *)(2)
#define ERROR_REPLACE (PyObject *)(3)
#define ERROR_ISCUSTOM(p) ((p) < ERROR_STRICT || ERROR_REPLACE < (p))
#define ERROR_DECREF(p) do { \
if (p != NULL && ERROR_ISCUSTOM(p)) { \
Py_DECREF(p); \
} \
} while (0);
#define MBENC_FLUSH 0x0001 /* encode all characters encodable */
#define MBENC_MAX MBENC_FLUSH
#ifdef __cplusplus
}
#endif
#endif