/*****************************************************************************
*
* File ..................: charconv_jp.c
* Purpose ...............: Common utilities
* Last modification date : 29-Aug-2000
*
*****************************************************************************
* Copyright (C) 1997-2000
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
* 1971 BV IJmuiden
* the Netherlands
*
* This file is part of MBSE BBS.
*
* This BBS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* MBSE BBS is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MBSE BBS; see the file COPYING. If not, write to the Free
* Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*****************************************************************************/
#include "../config.h"
#include "libs.h"
#include "memwatch.h"
#include "structs.h"
#include "common.h"
/* ### Modified by P. Saratxaga on 26 Oct 95 ###
* This is the kcon.c taken from JE version (code from T. Tanaka)
* I've modified it to support 8bit -> 8bit transcoding in addition of
* japanese (16 bits) ones.
* Also the codings are not readen from a config file but taken from the
* charset values in Header lines.
*/
void OPENINOUTFILES(FILE **in, FILE **out, char *src)
{
*in=tmpfile();
*out=tmpfile();
fwrite(src, sizeof(char), strlen(src), *in);
rewind(*in);
}
void CLOSEINOUTFILES(FILE **in, FILE **out,char **dest)
{
int destlen, c;
char *p;
rewind(*out);
for(destlen = 0; (c = fgetc(*out)) != EOF; destlen++);
rewind(*out);
if(*dest)
free(*dest);
*dest = (char *)malloc((destlen + 1) * sizeof(char));
for(p = *dest; (c = fgetc(*out)) != EOF; p++)
*p = (char)(c & 0xff);
*p = '\0';
fclose(*in);
fclose(*out);
}
void sjis2jis(int *p1,int *p2)
{
register unsigned char c1 = *p1;
register unsigned char c2 = *p2;
register int adjust = c2 < 159;
register int rowOffset = c1 < 160 ? 112 : 176;
register int cellOffset = adjust ? (31 + (c2 > 127)) : 126;
*p1 = ((c1 - rowOffset) << 1) - adjust;
*p2 -= cellOffset;
}
void jis2sjis(int *p1,int *p2)
{
register unsigned char c1 = *p1;
register unsigned char c2 = *p2;
register int rowOffset = c1 < 95 ? 112 : 176;
register int cellOffset = c1 % 2 ? 31 + (c2 > 95) : 126;
*p1 = ((c1 + 1) >> 1) + rowOffset;
*p2 = c2 + cellOffset;
}
void shift2seven(char *src,char **dest,int incode,char ki[],char ko[])
{
int p1,p2,intwobyte = FALSE;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case NUL :
case FF :
break;
case CR :
case NL :
if (intwobyte) {
intwobyte = FALSE;
fprintf(out,"%c%s",ESC,ko);
}
fprintf(out,"%c",NL);
break;
default :
if SJIS1(p1) {
p2 = fgetc(in);
if SJIS2(p2) {
sjis2jis(&p1,&p2);
if (!intwobyte) {
intwobyte = TRUE;
fprintf(out,"%c%s",ESC,ki);
}
}
fprintf(out,"%c%c",p1,p2);
} else if HANKATA(p1) {
han2zen(in,&p1,&p2,incode);
sjis2jis(&p1,&p2);
if (!intwobyte) {
intwobyte = TRUE;
fprintf(out,"%c%s",ESC,ki);
}
fprintf(out,"%c%c",p1,p2);
} else {
if (intwobyte) {
intwobyte = FALSE;
fprintf(out,"%c%s",ESC,ko);
}
fprintf(out,"%c",p1);
}
break;
}
}
if (intwobyte)
fprintf(out,"%c%s",ESC,ko);
CLOSEINOUTFILES(&in,&out,dest);
}
void shift2euc(char *src, char **dest, int incode, int tofullsize)
{
int p1,p2;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case CR :
case NL :
fprintf(out,"%c",NL);
break;
case NUL :
case FF :
break;
default :
if SJIS1(p1) {
p2 = fgetc(in);
if SJIS2(p2) {
sjis2jis(&p1,&p2);
p1 += 128;
p2 += 128;
}
fprintf(out,"%c%c",p1,p2);
} else if HANKATA(p1) {
if (tofullsize) {
han2zen(in,&p1,&p2,incode);
sjis2jis(&p1,&p2);
p1 += 128;
p2 += 128;
} else {
p2 = p1;
p1 = 142;
}
fprintf(out,"%c%c",p1,p2);
} else
fprintf(out,"%c",p1);
break;
}
}
CLOSEINOUTFILES(&in,&out,dest);
}
void euc2seven(char *src,char **dest,int incode,char ki[],char ko[])
{
int p1,p2,intwobyte = FALSE;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case NL :
if (intwobyte) {
intwobyte = FALSE;
fprintf(out,"%c%s",ESC,ko);
}
fprintf(out,"%c",p1);
break;
case FF :
break;
default :
if ISEUC(p1) {
p2 = fgetc(in);
if ISEUC(p2) {
p1 -= 128;
p2 -= 128;
if (!intwobyte) {
intwobyte = TRUE;
fprintf(out,"%c%s",ESC,ki);
}
}
fprintf(out,"%c%c",p1,p2);
}
else if (p1 == 142) {
p2 = fgetc(in);
if HANKATA(p2) {
p1 = p2;
han2zen(in,&p1,&p2,incode);
sjis2jis(&p1,&p2);
if (!intwobyte) {
intwobyte = TRUE;
fprintf(out,"%c%s",ESC,ki);
}
}
fprintf(out,"%c%c",p1,p2);
}
else {
if (intwobyte) {
intwobyte = FALSE;
fprintf(out,"%c%s",ESC,ko);
}
fprintf(out,"%c",p1);
}
break;
}
}
if (intwobyte)
fprintf(out,"%c%s",ESC,ko);
CLOSEINOUTFILES(&in,&out,dest);
}
void euc2shift(char *src,char **dest,int incode,int tofullsize)
{
int p1,p2;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case FF :
break;
default :
if ISEUC(p1) {
p2 = fgetc(in);
if ISEUC(p2) {
p1 -= 128;
p2 -= 128;
jis2sjis(&p1,&p2);
}
fprintf(out,"%c%c",p1,p2);
}
else if (p1 == 142) {
p2 = fgetc(in);
if HANKATA(p2) {
if (tofullsize) {
p1 = p2;
han2zen(in,&p1,&p2,incode);
fprintf(out,"%c%c",p1,p2);
}
else {
p1 = p2;
fprintf(out,"%c",p1);
}
}
else
fprintf(out,"%c%c",p1,p2);
}
else
fprintf(out,"%c",p1);
break;
}
}
CLOSEINOUTFILES(&in,&out,dest);
}
void euc2euc(char *src,char **dest,int incode,int tofullsize)
{
int p1,p2;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case FF :
break;
default :
if ISEUC(p1) {
p2 = fgetc(in);
if ISEUC(p2)
fprintf(out,"%c%c",p1,p2);
}
else if (p1 == 142) {
p2 = fgetc(in);
if (HANKATA(p2) && tofullsize) {
p1 = p2;
han2zen(in,&p1,&p2,incode);
sjis2jis(&p1,&p2);
p1 += 128;
p2 += 128;
}
fprintf(out,"%c%c",p1,p2);
}
else
fprintf(out,"%c",p1);
break;
}
}
CLOSEINOUTFILES(&in,&out,dest);
}
void shift2shift(char *src,char **dest,int incode,int tofullsize)
{
int p1,p2;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case CR :
case NL :
fprintf(out,"%c",NL);
break;
case NUL :
case FF :
break;
default :
if SJIS1(p1) {
p2 = fgetc(in);
if SJIS2(p2)
fprintf(out,"%c%c",p1,p2);
}
else if (HANKATA(p1) && tofullsize) {
han2zen(in,&p1,&p2,incode);
fprintf(out,"%c%c",p1,p2);
}
else
fprintf(out,"%c",p1);
break;
}
}
CLOSEINOUTFILES(&in,&out,dest);
}
void seven2shift(char *src,char **dest)
{
int temp,p1,p2,intwobyte = FALSE;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case ESC :
temp = fgetc(in);
SkipESCSeq(in,temp,&intwobyte);
break;
case NL :
if (intwobyte)
intwobyte = FALSE;
fprintf(out,"%c",p1);
break;
case FF :
break;
default :
if (intwobyte) {
p2 = fgetc(in);
jis2sjis(&p1,&p2);
fprintf(out,"%c%c",p1,p2);
}
else
fprintf(out,"%c",p1);
break;
}
}
CLOSEINOUTFILES(&in,&out,dest);
}
void seven2euc(char *src, char **dest)
{
int temp,p1,p2,intwobyte = FALSE;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case ESC :
temp = fgetc(in);
SkipESCSeq(in,temp,&intwobyte);
break;
case NL :
if (intwobyte)
intwobyte = FALSE;
fprintf(out,"%c",p1);
break;
case FF :
break;
default :
if (intwobyte) {
p2 = fgetc(in);
p1 += 128;
p2 += 128;
fprintf(out,"%c%c",p1,p2);
}
else
fprintf(out,"%c",p1);
break;
}
}
CLOSEINOUTFILES(&in,&out,dest);
}
void seven2seven(char *src,char **dest,char ki[],char ko[])
{
int temp,p1,p2,change,intwobyte = FALSE;
FILE *in, *out;
OPENINOUTFILES(&in,&out,src);
while ((p1 = fgetc(in)) != EOF) {
switch (p1) {
case ESC :
temp = fgetc(in);
change = SkipESCSeq(in,temp,&intwobyte);
if ((intwobyte) && (change))
fprintf(out,"%c%s",ESC,ki);
else if (change)
fprintf(out,"%c%s",ESC,ko);
break;
case NL :
if (intwobyte) {
intwobyte = FALSE;
fprintf(out,"%c%s",ESC,ko);
}
fprintf(out,"%c",p1);
break;
case FF :
break;
default :
if (intwobyte) {
p2 = fgetc(in);
fprintf(out,"%c%c",p1,p2);
}
else
fprintf(out,"%c",p1);
break;
}
}
if (intwobyte)
fprintf(out,"%c%s",ESC,ko);
CLOSEINOUTFILES(&in,&out,dest);
}
void han2zen(FILE *in,int *p1,int *p2,int incode)
{
int junk,maru,nigori;
maru = nigori = FALSE;
if (incode == CHRS_SJIS) {
*p2 = fgetc(in);
if (*p2 == 222) {
if (ISNIGORI(*p1) || *p1 == 179)
nigori = TRUE;
else
ungetc(*p2,in);
}
else if (*p2 == 223) {
if ISMARU(*p1)
maru = TRUE;
else
ungetc(*p2,in);
}
else
ungetc(*p2,in);
}
else if (incode == CHRS_EUC_JP) {
junk = fgetc(in);
if (junk == 142) {
*p2 = fgetc(in);
if (*p2 == 222) {
if (ISNIGORI(*p1) || *p1 == 179)
nigori = TRUE;
else {
ungetc(*p2,in);
ungetc(junk,in);
}
}
else if (*p2 == 223) {
if ISMARU(*p1)
maru = TRUE;
else {
ungetc(*p2,in);
ungetc(junk,in);
}
}
else {
ungetc(*p2,in);
ungetc(junk,in);
}
}
else
ungetc(junk,in);
}
switch (*p1) {
case 161 :
*p1 = 129;
*p2 = 66;
break;
case 162 :
*p1 = 129;
*p2 = 117;
break;
case 163 :
*p1 = 129;
*p2 = 118;
break;
case 164 :
*p1 = 129;
*p2 = 65;
break;
case 165 :
*p1 = 129;
*p2 = 69;
break;
case 166 :
*p1 = 131;
*p2 = 146;
break;
case 167 :
*p1 = 131;
*p2 = 64;
break;
case 168 :
*p1 = 131;
*p2 = 66;
break;
case 169 :
*p1 = 131;
*p2 = 68;
break;
case 170 :
*p1 = 131;
*p2 = 70;
break;
case 171 :
*p1 = 131;
*p2 = 72;
break;
case 172 :
*p1 = 131;
*p2 = 131;
break;
case 173 :
*p1 = 131;
*p2 = 133;
break;
case 174 :
*p1 = 131;
*p2 = 135;
break;
case 175 :
*p1 = 131;
*p2 = 98;
break;
case 176 :
*p1 = 129;
*p2 = 91;
break;
case 177 :
*p1 = 131;
*p2 = 65;
break;
case 178 :
*p1 = 131;
*p2 = 67;
break;
case 179 :
*p1 = 131;
*p2 = 69;
break;
case 180 :
*p1 = 131;
*p2 = 71;
break;
case 181 :
*p1 = 131;
*p2 = 73;
break;
case 182 :
*p1 = 131;
*p2 = 74;
break;
case 183 :
*p1 = 131;
*p2 = 76;
break;
case 184 :
*p1 = 131;
*p2 = 78;
break;
case 185 :
*p1 = 131;
*p2 = 80;
break;
case 186 :
*p1 = 131;
*p2 = 82;
break;
case 187 :
*p1 = 131;
*p2 = 84;
break;
case 188 :
*p1 = 131;
*p2 = 86;
break;
case 189 :
*p1 = 131;
*p2 = 88;
break;
case 190 :
*p1 = 131;
*p2 = 90;
break;
case 191 :
*p1 = 131;
*p2 = 92;
break;
case 192 :
*p1 = 131;
*p2 = 94;
break;
case 193 :
*p1 = 131;
*p2 = 96;
break;
case 194 :
*p1 = 131;
*p2 = 99;
break;
case 195 :
*p1 = 131;
*p2 = 101;
break;
case 196 :
*p1 = 131;
*p2 = 103;
break;
case 197 :
*p1 = 131;
*p2 = 105;
break;
case 198 :
*p1 = 131;
*p2 = 106;
break;
case 199 :
*p1 = 131;
*p2 = 107;
break;
case 200 :
*p1 = 131;
*p2 = 108;
break;
case 201 :
*p1 = 131;
*p2 = 109;
break;
case 202 :
*p1 = 131;
*p2 = 110;
break;
case 203 :
*p1 = 131;
*p2 = 113;
break;
case 204 :
*p1 = 131;
*p2 = 116;
break;
case 205 :
*p1 = 131;
*p2 = 119;
break;
case 206 :
*p1 = 131;
*p2 = 122;
break;
case 207 :
*p1 = 131;
*p2 = 125;
break;
case 208 :
*p1 = 131;
*p2 = 126;
break;
case 209 :
*p1 = 131;
*p2 = 128;
break;
case 210 :
*p1 = 131;
*p2 = 129;
break;
case 211 :
*p1 = 131;
*p2 = 130;
break;
case 212 :
*p1 = 131;
*p2 = 132;
break;
case 213 :
*p1 = 131;
*p2 = 134;
break;
case 214 :
*p1 = 131;
*p2 = 136;
break;
case 215 :
*p1 = 131;
*p2 = 137;
break;
case 216 :
*p1 = 131;
*p2 = 138;
break;
case 217 :
*p1 = 131;
*p2 = 139;
break;
case 218 :
*p1 = 131;
*p2 = 140;
break;
case 219 :
*p1 = 131;
*p2 = 141;
break;
case 220 :
*p1 = 131;
*p2 = 143;
break;
case 221 :
*p1 = 131;
*p2 = 147;
break;
case 222 :
*p1 = 129;
*p2 = 74;
break;
case 223 :
*p1 = 129;
*p2 = 75;
break;
}
if (nigori) {
if ((*p2 >= 74 && *p2 <= 103) || (*p2 >= 110 && *p2 <= 122))
(*p2)++;
else if (*p1 == 131 && *p2 == 69)
*p2 = 148;
}
else if (maru && *p2 >= 110 && *p2 <= 122)
*p2 += 2;
}