forked from tmm1/matzruby
/
kconv.c
2011 lines (1870 loc) · 60 KB
/
kconv.c
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/** Network Kanji Filter. (PDS Version)
************************************************************************
** Copyright (C) 1987, Fujitsu LTD. (Itaru ICHIKAWA)
** 連絡先： （株）富士通研究所 ソフト３研 市川 至
** （E-Mail Address: ichikawa@flab.fujitsu.co.jp）
** Copyright (C) 1996
** 連絡先： 琉球大学情報工学科 河野 真治 mine/X0208 support
** （E-Mail Address: kono@ie.u-ryukyu.ac.jp）
** 連絡先： COW for DOS & Win16 & Win32 & OS/2
** （E-Mail Address: GHG00637@niftyserve.or.jp）
** 営利を目的としない限り、このソースのいかなる
** 複写，改変，修正も許諾します。その際には、この部分を残すこと。
** このプログラムについては特に何の保証もしない、悪しからず。
** Everyone is permitted to do anything on this program
** including copying, modifying, improving
** as long as you don't try to make money off it,
** or pretend that you wrote it.
** i.e., the above copyright notice has to appear in all copies.
** THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.
***********************************************************************/
/***********************************************************************
** 1996/03/10 modified for Kconv - by Ikuo Nakagawa
***********************************************************************/
/***********************************************************************
** 1996/12/18 modified for kconv(ruby) - by matz@ruby.club.or.jp
***********************************************************************/
static char *CopyRight =
"Copyright (C) 1987, FUJITSU LTD. (I.Ichikawa),1996 S. Kono, COW";
static char *Version =
"1.62";
static char *Patchlevel =
"5/9612/Shinji Kono, COW matz";
#include "ruby.h"
/*
**
**
**
** USAGE: nkf [flags] [file]
**
** Flags:
** b Output is bufferred (DEFAULT)
** u Output is unbufferred
**
** t no operation
**
** j Outout code is JIS 7 bit (DEFAULT SELECT)
** s Output code is MS Kanji (DEFAULT SELECT)
** e Output code is AT&T JIS (DEFAULT SELECT)
** l Output code is JIS 7bit and ISO8859-1 Latin-1
**
** m MIME conversion for ISO-2022-JP
** i_ Output sequence to designate JIS-kanji (DEFAULT_J)
** o_ Output sequence to designate single-byte roman characters (DEFAULT_R)
**
** r {de/en}crypt ROT13/47
**
** v display Version
**
** T Text mode output (for MS-DOS)
**
** x Do not convert X0201 kana into X0208
** Z Convert X0208 alphabet to ASCII
**
** f60 fold option
**
** m MIME decode
** B try to fix broken JIS, missing Escape
** B[1-9] broken level
**
** O Output to 'nkf.out' file
** d Delete \r in line feed
** c Add \r in line feed
**/
/******************************/
/* デフォルトの出力コード選択 */
/* Select DEFAULT_CODE */
#define DEFAULT_CODE_JIS
/* #define DEFAULT_CODE_SJIS */
/* #define DEFAULT_CODE_EUC */
/******************************/
/* for Kconv: _AUTO, _EUC, _SJIS, _JIS */
#define _AUTO 0
#define _JIS 1
#define _EUC 2
#define _SJIS 3
#define _BINARY 4
#define _NOCONV 4
#define _UNKNOWN _AUTO
#if (defined(__TURBOC__) || defined(LSI_C)) && !defined(MSDOS)
#define MSDOS
#endif
#include <stdio.h>
#if defined(MSDOS) || defined(__OS2__)
#include <stdlib.h>
#include <fcntl.h>
#include <io.h>
#endif
#ifdef MSDOS
#ifdef LSI_C
#define setbinmode(fp) fsetbin(fp)
#else /* Microsoft C, Turbo C */
#define setbinmode(fp) setmode(fileno(fp), O_BINARY)
#endif
#else /* UNIX,OS/2 */
#define setbinmode(fp)
#endif
#ifdef _IOFBF /* SysV and MSDOS */
#define setvbuffer(fp, buf, size) setvbuf(fp, buf, _IOFBF, size)
#else /* BSD */
#define setvbuffer(fp, buf, size) setbuffer(fp, buf, size)
#endif
/*Borland C++ 4.5 EasyWin*/
#if defined(__TURBOC__) && defined(_Windows) && !defined(__WIN32__) /*Easy Win */
#define EASYWIN
#include <windows.h>
#endif
#ifndef FALSE
#define FALSE 0
#define TRUE 1
#endif
/* state of output_mode and input_mode */
#define ASCII 0
#define X0208 1
#define X0201 2
#define NO_X0201 3
#define JIS_INPUT 4
#define SJIS_INPUT 5
#define LATIN1_INPUT 6
#define FIXED_MIME 7
#define DOUBLE_SPACE -2
#define NL 0x0a
#define ESC 0x1b
#define SP 0x20
#define AT 0x40
#define SSP 0xa0
#define DEL 0x7f
#define SI 0x0f
#define SO 0x0e
#define SSO 0x8e
#define HOLD_SIZE 32
#define IOBUF_SIZE 16384
#define DEFAULT_J 'B'
#define DEFAULT_R 'B'
#define SJ0162 0x00e1 /* 01 - 62 ku offset */
#define SJ6394 0x0161 /* 63 - 94 ku offset */
/* MIME preprocessor */
#define _GETC() (*inptr ? (int)(*inptr++) : EOF)
#define _UNGETC(c) (*--inptr = (c))
#define PUTCHAR(c) (outlen + 1 < outsiz ? \
((outptr[outlen++] = (c)), (outptr[outlen] = '\0')) : EOF)
#define GETC() ((!mime_mode)?_GETC():mime_getc())
#define UNGETC(c) ((!mime_mode)?_UNGETC(c):mime_ungetc(c))
#ifdef EASYWIN /*Easy Win */
extern POINT _BufferSize;
#endif
/* buffers */
static unsigned char hold_buf[HOLD_SIZE*2];
static int hold_count;
static unsigned char *inptr;
static char *outptr;
static int outsiz;
static int outlen;
/* MIME preprocessor fifo */
#define MIME_BUF_SIZE (1024) /* 2^n ring buffer */
#define MIME_BUF_MASK (MIME_BUF_SIZE-1)
#define Fifo(n) mime_buf[(n)&MIME_BUF_MASK]
static unsigned char mime_buf[MIME_BUF_SIZE];
static unsigned int mime_top = 0;
static unsigned int mime_last = 0; /* decoded */
static unsigned int mime_input = 0; /* undecoded */
/* flags */
static int unbuf_f = FALSE;
static int estab_f = FALSE;
static int rot_f = FALSE; /* rot14/43 mode */
static int input_f = FALSE; /* non fixed input code */
static int alpha_f = FALSE; /* convert JIx0208 alphbet to ASCII */
static int mime_f = FALSE; /* convert MIME B base64 or Q */
static int mimebuf_f = FALSE; /* MIME buffered input */
static int broken_f = FALSE; /* convert ESC-less broken JIS */
static int iso8859_f = FALSE; /* ISO8859 through */
#if defined(MSDOS) || defined(__OS2__)
static int x0201_f = TRUE; /* Assume JISX0201 kana */
#else
static int x0201_f = NO_X0201; /* Assume NO JISX0201 */
#endif
/* X0208 -> ASCII converter */
static int c1_return;
/* fold parameter */
static int line = 0; /* chars in line */
static int prev = 0;
static int fold_f = FALSE;
static int fold_len = 0;
/* options */
static char kanji_intro = DEFAULT_J,
ascii_intro = DEFAULT_R;
/* Folding */
#define FOLD_MARGIN 10
#define DEFAULT_FOLD 60
/* Global states */
static int output_mode = ASCII, /* output kanji mode */
input_mode = ASCII, /* input kanji mode */
shift_mode = FALSE; /* TRUE shift out, or X0201 */
static int mime_mode = FALSE; /* MIME mode B base64, Q hex */
/* X0208 -> ASCII translation table */
/* X0201 / X0208 conversion tables */
/* X0201 kana conversion table */
/* 90-9F A0-DF */
static unsigned char cv[]= {
0x21,0x21,0x21,0x23,0x21,0x56,0x21,0x57,
0x21,0x22,0x21,0x26,0x25,0x72,0x25,0x21,
0x25,0x23,0x25,0x25,0x25,0x27,0x25,0x29,
0x25,0x63,0x25,0x65,0x25,0x67,0x25,0x43,
0x21,0x3c,0x25,0x22,0x25,0x24,0x25,0x26,
0x25,0x28,0x25,0x2a,0x25,0x2b,0x25,0x2d,
0x25,0x2f,0x25,0x31,0x25,0x33,0x25,0x35,
0x25,0x37,0x25,0x39,0x25,0x3b,0x25,0x3d,
0x25,0x3f,0x25,0x41,0x25,0x44,0x25,0x46,
0x25,0x48,0x25,0x4a,0x25,0x4b,0x25,0x4c,
0x25,0x4d,0x25,0x4e,0x25,0x4f,0x25,0x52,
0x25,0x55,0x25,0x58,0x25,0x5b,0x25,0x5e,
0x25,0x5f,0x25,0x60,0x25,0x61,0x25,0x62,
0x25,0x64,0x25,0x66,0x25,0x68,0x25,0x69,
0x25,0x6a,0x25,0x6b,0x25,0x6c,0x25,0x6d,
0x25,0x6f,0x25,0x73,0x21,0x2b,0x21,0x2c,
0x00,0x00};
/* X0201 kana conversion table for daguten */
/* 90-9F A0-DF */
static unsigned char dv[]= {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x25,0x2c,0x25,0x2e,
0x25,0x30,0x25,0x32,0x25,0x34,0x25,0x36,
0x25,0x38,0x25,0x3a,0x25,0x3c,0x25,0x3e,
0x25,0x40,0x25,0x42,0x25,0x45,0x25,0x47,
0x25,0x49,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x25,0x50,0x25,0x53,
0x25,0x56,0x25,0x59,0x25,0x5c,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00};
/* X0201 kana conversion table for han-daguten */
/* 90-9F A0-DF */
static unsigned char ev[]= {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x25,0x51,0x25,0x54,
0x25,0x57,0x25,0x5a,0x25,0x5d,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00};
/* X0208 kigou conversion table */
/* 0x8140 - 0x819e */
static unsigned char fv[] = {
0x00,0x00,0x00,0x00,0x2c,0x2e,0x00,0x3a,
0x3b,0x3f,0x21,0x00,0x00,0x27,0x60,0x00,
0x5e,0x00,0x5f,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x2d,0x00,0x2f,
0x5c,0x00,0x00,0x7c,0x00,0x00,0x60,0x27,
0x22,0x22,0x28,0x29,0x00,0x00,0x5b,0x5d,
0x7b,0x7d,0x3c,0x3e,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x2b,0x2d,0x00,0x00,
0x00,0x3d,0x00,0x3c,0x3e,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x24,0x00,0x00,0x25,0x23,0x26,0x2a,0x40,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
} ;
/* This converts =?ISO-2022-JP?B?HOGE HOGE?= */
static unsigned char *mime_pattern[] = {
(unsigned char *)"\075?ISO-8859-1?Q?",
(unsigned char *)"\075?ISO-2022-JP?B?",
(unsigned char *)"\075?ISO-2022-JP?Q?",
NULL
};
static int mime_encode[] = {
'Q', 'B', 'Q',
0
};
static int add_cr = FALSE;
static int del_cr = FALSE;
static void (*iconv) _((register int c2,register int c1)); /* s_iconv or oconv */
static void (*oconv) _((register int c2,register int c1)); /* [ejs]_oconv */
static int do_kconv _((char *i, char *o, int siz, int out_code, int in_code));
static void h_conv _((register int c2,register int c1));
static int push_hold_buf _((int c2,int c1));
static void s_iconv _((register int c2,register int c1));
static void e_oconv _((register int c2,register int c1));
static void s_oconv _((register int c2,register int c1));
static void j_oconv _((register int c2,register int c1));
static int fold _((register int c2,register int c1));
static int pre_convert _((register int c1,register int c2));
static int mime_begin _((void));
static int mime_getc _((void));
static int mime_ungetc _((unsigned int c));
static int mime_integrity _((unsigned char *p));
static int base64decode _((int c));
#ifdef notdef
main (argc, argv)
int argc;
char **argv;
{
register FILE *fin;
register char *cp;
#ifdef EASYWIN /*Easy Win */
_BufferSize.y = 400;/*Set Scroll Buffer Size*/
#endif
#ifdef DEFAULT_CODE_JIS
oconv = j_oconv; /* DEFAULT Code is JIS */
#endif
#ifdef DEFAULT_CODE_SJIS
oconv = s_oconv; /* DEFAULT Code is S-JIS */
#endif
#ifdef DEFAULT_CODE_EUC
oconv = e_oconv; /* DEFAULT Code is EUC */
#endif
for (argc--,argv++; (argc > 0) && **argv == '-'; argc--, argv++) {
cp = *argv;
while (*cp) {
switch (*cp++) {
case 'b': /* buffered mode */
unbuf_f = FALSE;
continue;
case 'u': /* non bufferd mode */
unbuf_f = TRUE;
continue;
case 'j': /* JIS output */
case 'n':
oconv = j_oconv;
continue;
case 'e': /* AT&T EUC output */
oconv = e_oconv;
continue;
case 's': /* SJIS output */
oconv = s_oconv;
continue;
case 'l': /* ISO8859 Latin-1 support, no conversion */
iso8859_f = TRUE; /* Only compatible with ISO-2022-JP */
input_f = LATIN1_INPUT;
continue;
case 'i': /* Kanji IN ESC-$-@/B */
if(*cp=='@'||*cp=='B')
kanji_intro = *cp++;
continue;
case 'o': /* ASCII IN ESC-(-J/B */
if(*cp=='J'||*cp=='B'||*cp=='H')
ascii_intro = *cp++;
continue;
case 'r':
rot_f = TRUE;
continue;
#if defined(MSDOS) || defined(__OS2__)
case 'T':
binmode_f = FALSE;
continue;
#endif
case 'v':
usage();
exit(1);
break;
/* Input code assumption */
case 'J': /* JIS input */
case 'E': /* AT&T EUC input */
input_f = JIS_INPUT;
continue;
case 'S': /* MS Kanji input */
input_f = SJIS_INPUT;
if(x0201_f==NO_X0201) x0201_f=TRUE;
continue;
case 'Z': /* Convert X0208 alphabet to asii */
/* bit:0 Convert X0208
bit:1 Convert Kankaku to one space
bit:2 Convert Kankaku to two spaces
*/
if('9'>= *cp && *cp>='0')
alpha_f |= 1<<(*cp++ -'0');
else
alpha_f |= TRUE;
continue;
case 'x': /* Convert X0201 kana to X0208 or X0201 Conversion */
x0201_f = FALSE; /* No X0201->X0208 conversion */
/* accept X0201
ESC-(-I in JIS, EUC, MS Kanji
SI/SO in JIS, EUC, MS Kanji
SSO in EUC, JIS, not in MS Kanji
MS Kanji (0xa0-0xdf)
output X0201
ESC-(-I in JIS (0x20-0x5f)
SSO in EUC (0xa0-0xdf)
0xa0-0xd in MS Kanji (0xa0-0xdf)
*/
continue;
case 'X': /* Assume X0201 kana */
/* Default value is NO_X0201 for EUC/MS-Kanji mix */
x0201_f = TRUE;
continue;
case 'f': /* folding -f60 or -f */
fold_f = TRUE;
fold_len = atoi(cp);
if(!(0<fold_len && fold_len<BUFSIZ))
fold_len = DEFAULT_FOLD;
while('0'<= *cp && *cp <='9') cp++;
continue;
case 'm': /* MIME support */
mime_f = TRUE;
if(*cp=='B'||*cp=='Q') {
mime_mode = *cp++;
mimebuf_f = FIXED_MIME;
}
continue;
case 'B': /* Broken JIS support */
/* bit:0 no ESC JIS
bit:1 allow any x on ESC-(-x or ESC-$-x
bit:2 reset to ascii on NL
*/
if('9'>= *cp && *cp>='0')
broken_f |= 1<<(*cp++ -'0');
else
broken_f |= TRUE;
continue;
case 'O':/* for Output file */
file_out = TRUE;
continue;
case 'c':/* add cr code */
add_cr = TRUE;
continue;
case 'd':/* delete cr code */
del_cr = TRUE;
continue;
default:
/* bogus option but ignored */
continue;
}
}
}
if(iso8859_f && (oconv != j_oconv || !x0201_f )) {
fprintf(stderr,"Mixed ISO8859/JISX0201/SJIS/EUC output is not allowed.\n");
exit(1);
}
if(binmode_f == TRUE)
#ifdef __OS2__
if(freopen("","wb",stdout) == NULL)
return (-1);
#else
setbinmode(stdout);
#endif
if(unbuf_f)
setbuf (stdout, (char *) NULL);
else
setvbuffer (stdout, stdobuf, IOBUF_SIZE);
if(argc == 0) {
if(binmode_f == TRUE)
#ifdef __OS2__
if(freopen("","rb",stdin) == NULL) return (-1);
#else
setbinmode(stdin);
#endif
setvbuffer (stdin, stdibuf, IOBUF_SIZE);
convert (stdin);
} else {
while (argc--) {
if((fin = fopen (*argv++, "r")) == NULL) {
perror (*--argv);
return (-1);
} else {
/* reopen file for stdout */
if(file_out == TRUE){
if(argc == 1 ) {
if(freopen(*argv++, "w", stdout) == NULL) {
perror (*--argv);
return (-1);
}
argc--;
} else {
if(freopen("nkf.out", "w", stdout) == NULL) {
perror (*--argv);
return (-1);
}
}
if(binmode_f == TRUE) {
#ifdef __OS2__
if(freopen("","wb",stdout) == NULL)
return (-1);
#else
setbinmode(stdout);
#endif
}
}
if(binmode_f == TRUE)
#ifdef __OS2__
if(freopen("","rb",fin) == NULL)
return (-1);
#else
setbinmode(fin);
#endif
setvbuffer (fin, stdibuf, IOBUF_SIZE);
convert (fin);
fclose (fin);
}
}
}
#ifdef EASYWIN /*Easy Win */
if(file_out == FALSE)
scanf("%d",&end_check);
else
fclose(stdout);
#else /* for Other OS */
if(file_out == TRUE)
fclose(stdout);
#endif
return (0);
}
#endif /* notdef */
static int
do_kconv(i, o, siz, out_code, in_code)
char *i;
char *o;
int siz, out_code, in_code;
{
register int c1,
c2;
c2 = 0;
if (siz <= 0) {
return 0;
}
*o = '\0';
inptr = (unsigned char *)i; /* input buffer */
outptr = o; /* output buffer */
outsiz = siz; /* output buffer size */
outlen = 0; /* current length of output string */
x0201_f = TRUE; /* don't assume JISX0201 kana */
rot_f = FALSE; /* rot14/43 mode */
input_f = FALSE; /* non fixed input code */
alpha_f = FALSE; /* convert JISX0208 alphbet to ASCII */
mime_f = TRUE; /* convert MIME base64 */
broken_f = FALSE; /* convert ESC-less broken JIS */
switch (out_code) {
case _SJIS:
oconv = s_oconv;
break;
case _EUC:
oconv = e_oconv;
break;
default:
oconv = j_oconv;
break;
}
switch (in_code) {
case _SJIS:
input_f = SJIS_INPUT;
x0201_f = TRUE;
break;
case _EUC:
case _JIS:
input_f = JIS_INPUT;
break;
default:
input_f = FALSE;
break;
}
if(input_f == JIS_INPUT || input_f == LATIN1_INPUT) {
estab_f = TRUE; iconv = oconv;
} else if(input_f == SJIS_INPUT) {
estab_f = TRUE; iconv = s_iconv;
} else {
estab_f = FALSE; iconv = oconv;
}
input_mode = ASCII;
output_mode = ASCII;
shift_mode = FALSE;
mime_mode = FALSE;
#define NEXT continue /* no output, get next */
#define SEND ; /* output c1 and c2, get next */
#define LAST break /* end of loop, go closing */
while ((c1 = GETC()) != EOF) {
if(!c2 && !input_mode && c1<DEL && !mime_mode && !output_mode
&& !shift_mode && !fold_f && !rot_f) {
/* plain ASCII tight loop, no conversion and no fold */
while(c1!='=' && c1!=SO && c1!=EOF &&
c1!=ESC && c1!='$' && c1<DEL && c1!='\r' && c1!='\n') {
PUTCHAR(c1);
c1 = _GETC();
}
if(c1==EOF) LAST;
}
if(c2) {
/* second byte */
if(c2 > DEL) {
/* in case of 8th bit is on */
if(!estab_f) {
/* in case of not established yet */
if(c1 > SSP) {
/* It is still ambiguious */
h_conv (c2, c1);
c2 = 0;
NEXT;
} else if(c1 < AT) {
/* ignore bogus code */
c2 = 0;
NEXT;
} else {
/* established */
/* it seems to be MS Kanji */
estab_f = TRUE;
iconv = s_iconv;
SEND;
}
} else
/* in case of already established */
if(c1 < AT) {
/* ignore bogus code */
c2 = 0;
NEXT;
} else
SEND;
} else
/* 7 bit code */
/* it might be kanji shitfted */
if((c1 == DEL) || (c1 <= SP)) {
/* ignore bogus first code */
c2 = 0;
NEXT;
} else
SEND;
} else {
/* first byte */
if(c1 > DEL) {
/* 8 bit code */
if(!estab_f && !iso8859_f) {
/* not established yet */
if(c1 < SSP) {
/* it seems to be MS Kanji */
estab_f = TRUE;
iconv = s_iconv;
} else if(c1 < 0xe0) {
/* it seems to be EUC */
estab_f = TRUE;
iconv = oconv;
} else {
/* still ambiguious */
}
c2 = c1;
NEXT;
} else { /* estab_f==TRUE */
if(iso8859_f) {
SEND;
} else if(SSP<=c1 && c1<0xe0 && iconv == s_iconv) {
/* SJIS X0201 Case... */
/* This is too arrogant, but ... */
if(x0201_f==NO_X0201) {
iconv = oconv;
c2 = c1;
NEXT;
} else
if(x0201_f) {
if(dv[(c1-SSP)*2]||ev[(c1-SSP)*2]) {
/* look ahead for X0201/X0208conversion */
if((c2 = GETC()) == EOF) {
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
LAST;
} else if(c2==(0xde)) { /* 濁点 */
(*oconv)(dv[(c1-SSP)*2],dv[(c1-SSP)*2+1]);
c2=0;
NEXT;
} else if(c2==(0xdf)&&ev[(c1-SSP)*2]) {
/* 半濁点 */
(*oconv)(ev[(c1-SSP)*2],ev[(c1-SSP)*2+1]);
c2=0;
NEXT;
}
UNGETC(c2); c2 = 0;
}
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
NEXT;
} else
SEND;
} else if(c1==SSO && iconv != s_iconv) {
/* EUC X0201 Case */
/* This is too arrogant
if(x0201_f == NO_X0201) {
estab_f = FALSE;
c2 = 0;
NEXT;
} */
c1 = GETC(); /* skip SSO */
euc_1byte_check:
if(x0201_f && SSP<=c1 && c1<0xe0) {
if(dv[(c1-SSP)*2]||ev[(c1-SSP)*2]) {
if((c2 = GETC()) == EOF) {
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
LAST;
}
/* forward lookup 濁点/半濁点 */
if(c2 != SSO) {
UNGETC(c2); c2 = 0;
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
NEXT;
} else if((c2 = GETC()) == EOF) {
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
(*oconv)(0,SSO);
LAST;
} else if(c2==(0xde)) { /* 濁点 */
(*oconv)(dv[(c1-SSP)*2],dv[(c1-SSP)*2+1]);
c2=0;
NEXT;
} else if(c2==(0xdf)&&ev[(c1-SSP)*2]) {
/* 半濁点 */
(*oconv)(ev[(c1-SSP)*2],ev[(c1-SSP)*2+1]);
c2=0;
NEXT;
} else {
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
/* we have to check this c2 */
/* and no way to push back SSO */
c1 = c2; c2 = 0;
goto euc_1byte_check;
}
}
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
NEXT;
} else
SEND;
} else if(c1 < SSP && iconv != s_iconv) {
/* strange code in EUC */
iconv = s_iconv; /* try SJIS */
c2 = c1;
NEXT;
} else {
/* already established */
c2 = c1;
NEXT;
}
}
} else if((c1 > SP) && (c1 != DEL)) {
/* in case of Roman characters */
if(shift_mode) {
c1 |= 0x80;
/* output 1 shifted byte */
if(x0201_f && (!iso8859_f||input_mode==X0201) &&
SSP<=c1 && c1<0xe0 ) {
if(dv[(c1-SSP)*2]||ev[(c1-SSP)*2]) {
if((c2 = GETC()) == EOF) {
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
LAST;
} else if(c2==(0xde&0x7f)) { /* 濁点 */
(*oconv)(dv[(c1-SSP)*2],dv[(c1-SSP)*2+1]);
c2=0;
NEXT;
} else if(c2==(0xdf&0x7f)&&ev[(c1-SSP)*2]) {
/* 半濁点 */
(*oconv)(ev[(c1-SSP)*2],ev[(c1-SSP)*2+1]);
c2=0;
NEXT;
}
UNGETC(c2); c2 = 0;
}
(*oconv)(cv[(c1-SSP)*2],cv[(c1-SSP)*2+1]);
NEXT;
} else
SEND;
} else if(c1 == '(' && broken_f && input_mode == X0208
&& !mime_mode ) {
/* Try to recover missing escape */
if((c1 = GETC()) == EOF) {
(*oconv) (0, '(');
LAST;
} else {
if(c1 == 'B' || c1 == 'J' || c1 == 'H') {
input_mode = ASCII; shift_mode = FALSE;
NEXT;
} else {
(*oconv) (0, '(');
/* do not modify various input_mode */
/* It can be vt100 sequence */
SEND;
}
}
} else if(input_mode == X0208) {
/* in case of Kanji shifted */
c2 = c1;
NEXT;
/* goto next_byte */
} else if(c1 == '=' && mime_f && !mime_mode ) {
if((c1 = _GETC()) == EOF) {
(*oconv) (0, '=');
LAST;
} else if(c1 == '?') {
/* =? is mime conversion start sequence */
if(mime_begin() == EOF) /* check in detail */
LAST;
else
NEXT;
} else {
(*oconv) (0, '=');
_UNGETC(c1);
NEXT;
}
} else if(c1 == '$' && broken_f && !mime_mode) {
/* try to recover missing escape */
if((c1 = GETC()) == EOF) {
(*oconv) (0, '$');
LAST;
} else if(c1 == '@'|| c1 == 'B') {
/* in case of Kanji in ESC sequence */
input_mode = X0208;
shift_mode = FALSE;
NEXT;
} else {
/* sorry */
(*oconv) (0, '$');
(*oconv) (0, c1);
NEXT;
}
} else
SEND;
} else if(c1 == SI) {
shift_mode = FALSE;
NEXT;
} else if(c1 == SO) {
shift_mode = TRUE;
NEXT;
} else if(c1 == ESC ) {
if((c1 = GETC()) == EOF) {
(*oconv) (0, ESC);
LAST;
} else if(c1 == '$') {
if((c1 = GETC()) == EOF) {
(*oconv) (0, ESC);
(*oconv) (0, '$');
LAST;
} else if(c1 == '@'|| c1 == 'B') {
/* This is kanji introduction */
input_mode = X0208;
shift_mode = FALSE;
NEXT;
} else if(broken_f&0x2) {
input_mode = X0208;
shift_mode = FALSE;
NEXT;
} else {
(*oconv) (0, ESC);
(*oconv) (0, '$');
(*oconv) (0, c1);
NEXT;
}
} else if(c1 == '(') {
if((c1 = GETC()) == EOF) {
(*oconv) (0, ESC);
(*oconv) (0, '(');
LAST;
} else {
if(c1 == 'I') {
/* This is X0201 kana introduction */
input_mode = X0201; shift_mode = X0201;
NEXT;
} else if(c1 == 'B' || c1 == 'J' || c1 == 'H') {
/* This is X0208 kanji introduction */
input_mode = ASCII; shift_mode = FALSE;
NEXT;
} else if(broken_f&0x2) {
input_mode = ASCII; shift_mode = FALSE;
NEXT;
} else {
(*oconv) (0, ESC);
(*oconv) (0, '(');
/* maintain various input_mode here */
SEND;
}
}
} else {
/* lonely ESC */
(*oconv) (0, ESC);
SEND;
}
} else if(c1 == NL && broken_f&4) {
input_mode = ASCII;
SEND;
} else
SEND;
}
/* send: */
if(input_mode == X0208)
(*oconv) (c2, c1); /* this is JIS, not SJIS/EUC case */
else
(*iconv) (c2, c1); /* can be EUC/SJIS */
c2 = 0;
continue;
/* goto next_word */
}
/* epilogue */
(*iconv) (EOF, 0);
return outlen;
}
static void
h_conv (c2, c1)
register int c1,
c2;
{
register int wc;
/** it must NOT be in the kanji shifte sequence */
/** it must NOT be written in JIS7 */
/** and it must be after 2 byte 8bit code */
hold_count = 0;
push_hold_buf (c2, c1);
c2 = 0;
while ((c1 = GETC()) != EOF) {
if(c2) {
/* second byte */
if(!estab_f) {
/* not established */
if(c1 > SSP) {
/* it is still ambiguious yet */
SEND;
} else if(c1 < AT) {
/* ignore bogus first byte */
c2 = 0;
SEND;