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/*
Changes.
2009.6.2 Remove WISH_TRUE, use get_guessed_code() for nkf-2.0.9
by SATOH Fumiyasu (fumiyas @ osstech co jp)
2008.7.17 Change the type of strlen from long to int, by SATOH Fumiyasu.
2007.2.1 Add guess() function.
2007.1.13 Remove pynkf_parseopts(), by SATOH Fumiyasu.
*/
/** Python Interface to NKF
***************************************************************************
** Copyright (c) 2005 Matsumoto, Tadashi <ma2@city.plala.jp>
** All Rights Reserved.
**
** Everyone is permitted to do anything on this program
** including copying, modifying, improving,
** as long as you don't try to pretend that you wrote it.
** i.e., the above copyright notice has to appear in all copies.
** Binary distribution requires original version messages.
** You don't have to ask before copying, redistribution or publishing.
** THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.
***************************************************************************/
#include "Python.h"
#include <setjmp.h>
#undef getc
#undef ungetc
#define getc(f) pynkf_getc(f)
#define ungetc(c,f) pynkf_ungetc(c,f)
#undef putchar
#undef TRUE
#undef FALSE
#define putchar(c) pynkf_putchar(c)
static int pynkf_ibufsize, pynkf_obufsize;
static unsigned char *pynkf_inbuf, *pynkf_outbuf;
static int pynkf_icount,pynkf_ocount;
static unsigned char *pynkf_iptr, *pynkf_optr;
static jmp_buf env;
static int pynkf_guess_flag;
static int
pynkf_getc(FILE *f)
{
unsigned char c;
if (pynkf_icount >= pynkf_ibufsize) return EOF;
c = *pynkf_iptr++;
pynkf_icount++;
return (int)c;
}
static int
pynkf_ungetc(int c, FILE *f)
{
if (pynkf_icount--){
*(--pynkf_iptr) = c;
return c;
}else{ return EOF; }
}
static void
pynkf_putchar(int c)
{
size_t size;
unsigned char *p;
if (pynkf_guess_flag) {
return;
}
if (pynkf_ocount--){
*pynkf_optr++ = c;
}else{
size = pynkf_obufsize + pynkf_obufsize;
p = (unsigned char *)PyMem_Realloc(pynkf_outbuf, size + 1);
if (pynkf_outbuf == NULL){ longjmp(env, 1); }
pynkf_outbuf = p;
pynkf_optr = pynkf_outbuf + pynkf_obufsize;
pynkf_ocount = pynkf_obufsize;
pynkf_obufsize = size;
*pynkf_optr++ = c;
pynkf_ocount--;
}
}
#define PERL_XS 1
#include "../utf8tbl.c"
#include "../nkf.c"
static PyObject *
pynkf_convert(unsigned char* str, int strlen, char* opts, int optslen)
{
PyObject * res;
pynkf_ibufsize = strlen + 1;
pynkf_obufsize = pynkf_ibufsize * 1.5 + 256;
pynkf_outbuf = (unsigned char *)PyMem_Malloc(pynkf_obufsize);
if (pynkf_outbuf == NULL){
PyErr_NoMemory();
return NULL;
}
pynkf_outbuf[0] = '\0';
pynkf_ocount = pynkf_obufsize;
pynkf_optr = pynkf_outbuf;
pynkf_icount = 0;
pynkf_inbuf = str;
pynkf_iptr = pynkf_inbuf;
pynkf_guess_flag = 0;
if (setjmp(env) == 0){
reinit();
options(opts);
kanji_convert(NULL);
}else{
PyMem_Free(pynkf_outbuf);
PyErr_NoMemory();
return NULL;
}
*pynkf_optr = 0;
res = PyString_FromString(pynkf_outbuf);
PyMem_Free(pynkf_outbuf);
return res;
}
static PyObject *
pynkf_convert_guess(unsigned char* str, int strlen)
{
PyObject * res;
const char *codename;
pynkf_ibufsize = strlen + 1;
pynkf_icount = 0;
pynkf_inbuf = str;
pynkf_iptr = pynkf_inbuf;
pynkf_guess_flag = 1;
reinit();
guess_f = 1;
kanji_convert(NULL);
codename = get_guessed_code();
res = PyString_FromString(codename);
return res;
}
#ifndef EXTERN_NKF
static
#endif
PyObject *pynkf_nkf(PyObject *self, PyObject *args)
{
unsigned char *str;
int strlen;
char *opts;
int optslen;
PyObject* res;
if (!PyArg_ParseTuple(args, "s#s#", &opts, &optslen, &str, &strlen)) {
return NULL;
}
res = pynkf_convert(str, strlen, opts, optslen);
return res;
}
#ifndef EXTERN_NKF
static
#endif
PyObject *pynkf_guess(PyObject *self, PyObject *args)
{
unsigned char *str;
int strlen;
PyObject* res;
if (!PyArg_ParseTuple(args, "s#", &str, &strlen)) {
return NULL;
}
res = pynkf_convert_guess(str, strlen);
return res;
}
#ifndef EXTERN_NKF
static PyMethodDef
nkfmethods[] = {
{"nkf", pynkf_nkf, METH_VARARGS},
{"guess", pynkf_guess, METH_VARARGS},
{NULL, NULL}
};
/* Module initialization function */
void
initnkf(void)
{
Py_InitModule("nkf", nkfmethods);
}
#endif
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