Category : UNIX Files
Archive : UUPC11YS.ZIP
Filename : KANJICNV.C
Output of file : KANJICNV.C contained in archive : UUPC11YS.ZIP
* kanjicnv.c
* Japanese conversion routines for UUPC/Extended
*
* Based on Oimo source file stdfunc.c
* Programmed by Shigeki Matsushima and Dai Yokota 4-MAY-1989
* Modified by Kenji Rikitake 13-AUG-1991
* Copyright (c) 1988, 1991 by Shigeki Matsushima, Dai Yokota, and
* Kenji Rikitake. All rights reserved.
*
*/
/*--------------------------------------------------------------------*/
/* System include files */
/*--------------------------------------------------------------------*/
#include
#include
/*--------------------------------------------------------------------*/
/* UUPC/extended include files */
/*--------------------------------------------------------------------*/
#include "lib.h"
#include "kanjicnv.h"
/*
* On Japanese support:
*
* Japanese MS-DOS uses a 2byte Kanji (Japanese ideogram) code called
* "Shift-JIS". This cannot be delivered via SMTP since Shift-JIS maps
* its first byte from 0x80-0x9f and 0xe0-0xfc.
* JUNET requests all hosts to send Kanji in a 7bit subset of ISO2022.
* This is commonly called "JIS 7bit".
*
* To provide Japanese functionality, you need to convert
* all remote delivery messages to JIS 7bit, and
* all local delivery messages to Shift-JIS.
*/
/*--------------------------------------------------------------------*/
/* Global defines */
/*--------------------------------------------------------------------*/
#define SEQ_TO_JIS90 "\033$B"
#define SEQ_TO_ASCII "\033(B"
/*--------------------------------------------------------------------*/
/* Macros */
/*--------------------------------------------------------------------*/
/* check if c is the first byte of Shift-JIS Kanji */
#define iskanji(c) ((unsigned char)(c) >= 0x81 && \
(unsigned char)(c) <= 0x9f || \
(unsigned char)(c) >= 0xe0 && \
(unsigned char)(c) <= 0xfc)
/* check if c is the second byte of Shift-JIS Kanji */
#define iskanji2(c) ((unsigned char)(c) >= 0x40 && \
(unsigned char)(c) <= 0x7e || \
(unsigned char)(c) >= 0x80 && \
(unsigned char)(c) <= 0xfc)
/*--------------------------------------------------------------------*/
/* f p u t s _ s h i f t j i s */
/* */
/* fputs() with conversion from JIS 7bit to Shift-JIS */
/*--------------------------------------------------------------------*/
int fputs_shiftjis(unsigned char *buf, FILE *fp)
{
int shiftin = FALSE;
unsigned char hi, lo;
while (*buf) {
if ((*buf == '\033') && (*(buf+1) == '$') &&
((*(buf+2) == 'B') || (*(buf+2) == '@'))) {
shiftin = TRUE;
buf += 3;
}
else if ((*buf == '\033') && (*(buf+1) == '(')
&& ((*(buf+2) == 'J') || (*(buf+2) == 'B') ||
(*(buf+2) == 'H'))) {
shiftin = FALSE;
buf += 3;
}
else if (shiftin) {
hi = *buf++;
if ((lo = *buf++) == '\0')
break;
if (hi & 1) lo += 0x1f;
else lo += 0x7d;
if (lo >= 0x7f) lo++;
hi = (hi - 0x21 >> 1) + 0x81;
if (hi > 0x9f) hi += 0x40;
if (EOF == fputc(hi, fp)) {
return EOF;
}
if (EOF == fputc(lo, fp)) {
return EOF;
}
}
else {
if (EOF == fputc(*buf, fp)) {
return EOF;
}
buf++;
}
}
return 0;
} /* fputs_shiftjis */
/*--------------------------------------------------------------------*/
/* fputs_jis7bit */
/* */
/* fputs() with conversion from Shift-JIS to JIS 7bit */
/*--------------------------------------------------------------------*/
int fputs_jis7bit(unsigned char *buf, FILE *fp)
{
int kanjiflag = FALSE;
unsigned char hi, lo;
int i;
while (*buf) {
if (iskanji(*buf) && iskanji2(*(buf+1))) {
if (kanjiflag == FALSE) {
kanjiflag = TRUE;
if (0 != (i = fputs(SEQ_TO_JIS90, fp))) {
return i;
}
}
hi = *buf++;
if ((lo = *buf++) == '\0')
break;
hi -= (hi <= 0x9f) ? 0x71 : 0xb1;
hi = hi * 2 + 1;
if (lo > 0x7f) lo -= 1;
if (lo >= 0x9e) {
lo -= 0x7d;
hi += 1;
}
else {
lo -= 0x1f;
}
if (EOF == fputc(hi, fp)) {
return EOF;
}
if (EOF == fputc(lo, fp)) {
return EOF;
}
}
else {
if (kanjiflag == TRUE) {
kanjiflag = FALSE;
if (0 != (i = fputs(SEQ_TO_ASCII, fp))) {
return i;
}
}
if (EOF == fputc(*buf, fp)) {
return EOF;
}
buf++;
}
}
if (kanjiflag) {
if (0 != (i = fputs(SEQ_TO_ASCII, fp))) {
return i;
}
}
return 0;
} /* fputs_jis7bit */
Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!
This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.
But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/