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* show line-break code when nkf --guess.
[nkf/nkf.git] / nkf.c
1 /** Network Kanji Filter. (PDS Version)
2 ************************************************************************
3 ** Copyright (C) 1987, Fujitsu LTD. (Itaru ICHIKAWA)
4 ** \e$BO"Mm@h!'\e(B \e$B!J3t!KIY;NDL8&5f=j!!%=%U%H#38&!!;T@n!!;j\e(B 
5 ** \e$B!J\e(BE-Mail Address: ichikawa@flab.fujitsu.co.jp\e$B!K\e(B
6 ** Copyright (C) 1996,1998
7 ** Copyright (C) 2002
8 ** \e$BO"Mm@h!'\e(B \e$BN05eBg3X>pJs9)3X2J\e(B \e$B2OLn\e(B \e$B??<#\e(B  mime/X0208 support
9 ** \e$B!J\e(BE-Mail Address: kono@ie.u-ryukyu.ac.jp\e$B!K\e(B
10 ** \e$BO"Mm@h!'\e(B COW for DOS & Win16 & Win32 & OS/2
11 ** \e$B!J\e(BE-Mail Address: GHG00637@niftyserve.or.p\e$B!K\e(B
12 **
13 **    \e$B$3$N%=!<%9$N$$$+$J$kJ#<L!$2~JQ!$=$@5$b5vBz$7$^$9!#$?$@$7!"\e(B
14 **    \e$B$=$N:]$K$O!"C/$,9W8%$7$?$r<($9$3$NItJ,$r;D$9$3$H!#\e(B
15 **    \e$B:FG[I[$d;(;o$NIUO?$J$I$NLd$$9g$o$;$bI,MW$"$j$^$;$s!#\e(B
16 **    \e$B1DMxMxMQ$b>e5-$KH?$7$J$$HO0O$G5v2D$7$^$9!#\e(B
17 **    \e$B%P%$%J%j$NG[I[$N:]$K$O\e(Bversion message\e$B$rJ]B8$9$k$3$H$r>r7o$H$7$^$9!#\e(B
18 **    \e$B$3$N%W%m%0%i%`$K$D$$$F$OFC$K2?$NJ]>Z$b$7$J$$!"0-$7$+$i$:!#\e(B
19 **
20 **    Everyone is permitted to do anything on this program 
21 **    including copying, modifying, improving,
22 **    as long as you don't try to pretend that you wrote it.
23 **    i.e., the above copyright notice has to appear in all copies.  
24 **    Binary distribution requires original version messages.
25 **    You don't have to ask before copying, redistribution or publishing.
26 **    THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.
27 ***********************************************************************/
28
29 /***********************************************************************
30 ** UTF-8 \e$B%5%]!<%H$K$D$$$F\e(B
31 **    \e$B=>Mh$N\e(B nkf \e$B$HF~$l$+$($F$=$N$^$^;H$($k$h$&$K$J$C$F$$$^$9\e(B
32 **    nkf -e \e$B$J$I$H$7$F5/F0$9$k$H!"<+F0H=JL$G\e(B UTF-8 \e$B$HH=Dj$5$l$l$P!"\e(B
33 **    \e$B$=$N$^$^\e(B euc-jp \e$B$KJQ49$5$l$^$9\e(B
34 **
35 **    \e$B$^$@%P%0$,$"$k2DG=@-$,9b$$$G$9!#\e(B
36 **    (\e$BFC$K<+F0H=JL!"%3!<%I:.:_!"%(%i!<=hM}7O\e(B)
37 **
38 **    \e$B2?$+LdBj$r8+$D$1$?$i!"\e(B
39 **        E-Mail: furukawa@tcp-ip.or.jp
40 **    \e$B$^$G8fO"Mm$r$*4j$$$7$^$9!#\e(B
41 ***********************************************************************/
42 /* $Id: nkf.c,v 1.123 2007/05/27 20:31:01 naruse Exp $ */
43 #define NKF_VERSION "2.0.8"
44 #define NKF_RELEASE_DATE "2007-05-28"
45 #include "config.h"
46 #include "utf8tbl.h"
47
48 #define COPY_RIGHT \
49     "Copyright (C) 1987, FUJITSU LTD. (I.Ichikawa),2000 S. Kono, COW\n" \
50     "Copyright (C) 2002-2006 Kono, Furukawa, Naruse, mastodon"
51
52
53 /*
54 **
55 **
56 **
57 ** USAGE:       nkf [flags] [file] 
58 **
59 ** Flags:
60 ** b    Output is buffered             (DEFAULT)
61 ** u    Output is unbuffered
62 **
63 ** t    no operation
64 **
65 ** j    Output code is JIS 7 bit        (DEFAULT SELECT) 
66 ** s    Output code is MS Kanji         (DEFAULT SELECT) 
67 ** e    Output code is AT&T JIS         (DEFAULT SELECT) 
68 ** w    Output code is AT&T JIS         (DEFAULT SELECT) 
69 ** l    Output code is JIS 7bit and ISO8859-1 Latin-1
70 **
71 ** m    MIME conversion for ISO-2022-JP
72 ** I    Convert non ISO-2022-JP charactor to GETA by Pekoe <pekoe@lair.net>
73 ** i_ Output sequence to designate JIS-kanji (DEFAULT_J)
74 ** o_ Output sequence to designate single-byte roman characters (DEFAULT_R)
75 ** M    MIME output conversion 
76 **
77 ** r  {de/en}crypt ROT13/47
78 **
79 ** v  display Version
80 **
81 ** T  Text mode output        (for MS-DOS)
82 **
83 ** x    Do not convert X0201 kana into X0208
84 ** Z    Convert X0208 alphabet to ASCII
85 **
86 ** f60  fold option
87 **
88 ** m    MIME decode
89 ** B    try to fix broken JIS, missing Escape
90 ** B[1-9]  broken level
91 **
92 ** O   Output to 'nkf.out' file or last file name
93 ** d   Delete \r in line feed 
94 ** c   Add \r in line feed 
95 ** -- other long option
96 ** -- ignore following option (don't use with -O )
97 **
98 **/
99
100 #if (defined(__TURBOC__) || defined(_MSC_VER) || defined(LSI_C) || defined(__MINGW32__) || defined(__EMX__) || defined(__MSDOS__) || defined(__WINDOWS__) || defined(__DOS__) || defined(__OS2__)) && !defined(MSDOS)
101 #define MSDOS
102 #if (defined(__Win32__) || defined(_WIN32)) && !defined(__WIN32__)
103 #define __WIN32__
104 #endif
105 #endif
106
107 #ifdef PERL_XS
108 #undef OVERWRITE
109 #endif
110
111 #ifndef PERL_XS
112 #include <stdio.h>
113 #endif
114
115 #include <stdlib.h>
116 #include <string.h>
117
118 #if defined(MSDOS) || defined(__OS2__)
119 #include <fcntl.h>
120 #include <io.h>
121 #if defined(_MSC_VER) || defined(__WATCOMC__)
122 #define mktemp _mktemp
123 #endif
124 #endif
125
126 #ifdef MSDOS
127 #ifdef LSI_C
128 #define setbinmode(fp) fsetbin(fp)
129 #elif defined(__DJGPP__)
130 #include <libc/dosio.h>
131 #define setbinmode(fp) djgpp_setbinmode(fp)
132 #else /* Microsoft C, Turbo C */
133 #define setbinmode(fp) setmode(fileno(fp), O_BINARY)
134 #endif
135 #else /* UNIX */
136 #define setbinmode(fp)
137 #endif
138
139 #if defined(__DJGPP__)
140 void  djgpp_setbinmode(FILE *fp)
141 {
142     /* we do not use libc's setmode(), which changes COOKED/RAW mode in device. */
143     int fd, m;
144     fd = fileno(fp);
145     m = (__file_handle_modes[fd] & (~O_TEXT)) | O_BINARY;
146     __file_handle_set(fd, m);
147 }
148 #endif
149
150 #ifdef _IOFBF /* SysV and MSDOS, Windows */
151 #define       setvbuffer(fp, buf, size)       setvbuf(fp, buf, _IOFBF, size)
152 #else /* BSD */
153 #define       setvbuffer(fp, buf, size)       setbuffer(fp, buf, size)
154 #endif
155
156 /*Borland C++ 4.5 EasyWin*/
157 #if defined(__TURBOC__) && defined(_Windows) && !defined(__WIN32__) /*Easy Win */
158 #define         EASYWIN
159 #ifndef __WIN16__
160 #define __WIN16__
161 #endif
162 #include <windows.h>
163 #endif
164
165 #ifdef OVERWRITE
166 /* added by satoru@isoternet.org */
167 #if defined(__EMX__)
168 #include <sys/types.h>
169 #endif
170 #include <sys/stat.h>
171 #if !defined(MSDOS) || defined(__DJGPP__) /* UNIX, djgpp */
172 #include <unistd.h>
173 #if defined(__WATCOMC__)
174 #include <sys/utime.h>
175 #else
176 #include <utime.h>
177 #endif
178 #else /* defined(MSDOS) */
179 #ifdef __WIN32__
180 #ifdef __BORLANDC__ /* BCC32 */
181 #include <utime.h>
182 #else /* !defined(__BORLANDC__) */
183 #include <sys/utime.h>
184 #endif /* (__BORLANDC__) */
185 #else /* !defined(__WIN32__) */
186 #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__WATCOMC__) || defined(__OS2__) || defined(__EMX__) || defined(__IBMC__) || defined(__IBMCPP__)  /* VC++, MinGW, Watcom, emx+gcc, IBM VAC++ */
187 #include <sys/utime.h>
188 #elif defined(__TURBOC__) /* BCC */
189 #include <utime.h>
190 #elif defined(LSI_C) /* LSI C */
191 #endif /* (__WIN32__) */
192 #endif
193 #endif
194 #endif
195
196 #define         FALSE   0
197 #define         TRUE    1
198
199 /* state of output_mode and input_mode  
200
201    c2           0 means ASCII
202                 X0201
203                 ISO8859_1
204                 X0208
205                 EOF      all termination
206    c1           32bit data
207
208  */
209
210 #define         ASCII           0
211 #define         X0208           1
212 #define         X0201           2
213 #define         ISO8859_1       8
214 #define         NO_X0201        3
215 #define         X0212      0x2844
216 #define         X0213_1    0x284F
217 #define         X0213_2    0x2850
218
219 /* Input Assumption */
220
221 #define         JIS_INPUT       4
222 #define         EUC_INPUT      16
223 #define         SJIS_INPUT      5
224 #define         LATIN1_INPUT    6
225 #define         FIXED_MIME      7
226 #define         STRICT_MIME     8
227
228 /* MIME ENCODE */
229
230 #define         ISO2022JP       9
231 #define         JAPANESE_EUC   10
232 #define         SHIFT_JIS      11
233
234 #define         UTF8           12
235 #define         UTF8_INPUT     13
236 #define         UTF16_INPUT    1015
237 #define         UTF32_INPUT    1017
238
239 /* byte order */
240
241 #define         ENDIAN_BIG      1234
242 #define         ENDIAN_LITTLE   4321
243 #define         ENDIAN_2143     2143
244 #define         ENDIAN_3412     3412
245
246 #define         WISH_TRUE      15
247
248 /* ASCII CODE */
249
250 #define         BS      0x08
251 #define         TAB     0x09
252 #define         NL      0x0a
253 #define         CR      0x0d
254 #define         ESC     0x1b
255 #define         SPACE   0x20
256 #define         AT      0x40
257 #define         SSP     0xa0
258 #define         DEL     0x7f
259 #define         SI      0x0f
260 #define         SO      0x0e
261 #define         SSO     0x8e
262 #define         SS3     0x8f
263
264 #define         is_alnum(c)  \
265             (('a'<=c && c<='z')||('A'<= c && c<='Z')||('0'<=c && c<='9'))
266
267 /* I don't trust portablity of toupper */
268 #define nkf_toupper(c)  (('a'<=c && c<='z')?(c-('a'-'A')):c)
269 #define nkf_isoctal(c)  ('0'<=c && c<='7')
270 #define nkf_isdigit(c)  ('0'<=c && c<='9')
271 #define nkf_isxdigit(c)  (nkf_isdigit(c) || ('a'<=c && c<='f') || ('A'<=c && c <= 'F'))
272 #define nkf_isblank(c) (c == SPACE || c == TAB)
273 #define nkf_isspace(c) (nkf_isblank(c) || c == CR || c == NL)
274 #define nkf_isalpha(c) (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
275 #define nkf_isalnum(c) (nkf_isdigit(c) || nkf_isalpha(c))
276 #define nkf_isprint(c) (' '<=c && c<='~')
277 #define nkf_isgraph(c) ('!'<=c && c<='~')
278 #define hex2bin(c) (('0'<=c&&c<='9') ? (c-'0') : \
279                     ('A'<=c&&c<='F') ? (c-'A'+10) : \
280                     ('a'<=c&&c<='f') ? (c-'a'+10) : 0 )
281 #define is_eucg3(c2) (((unsigned short)c2 >> 8) == SS3)
282
283 #define CP932_TABLE_BEGIN 0xFA
284 #define CP932_TABLE_END   0xFC
285 #define CP932INV_TABLE_BEGIN 0xED
286 #define CP932INV_TABLE_END   0xEE
287 #define is_ibmext_in_sjis(c2) (CP932_TABLE_BEGIN <= c2 && c2 <= CP932_TABLE_END)
288
289 #define         HOLD_SIZE       1024
290 #if defined(INT_IS_SHORT)
291 #define         IOBUF_SIZE      2048
292 #else
293 #define         IOBUF_SIZE      16384
294 #endif
295
296 #define         DEFAULT_J       'B'
297 #define         DEFAULT_R       'B'
298
299 #define         SJ0162  0x00e1          /* 01 - 62 ku offset */
300 #define         SJ6394  0x0161          /* 63 - 94 ku offset */
301
302 #define         RANGE_NUM_MAX   18
303 #define         GETA1   0x22
304 #define         GETA2   0x2e
305
306
307 #if defined(UTF8_OUTPUT_ENABLE) || defined(UTF8_INPUT_ENABLE)
308 #define sizeof_euc_to_utf8_1byte 94
309 #define sizeof_euc_to_utf8_2bytes 94
310 #define sizeof_utf8_to_euc_C2 64
311 #define sizeof_utf8_to_euc_E5B8 64
312 #define sizeof_utf8_to_euc_2bytes 112
313 #define sizeof_utf8_to_euc_3bytes 16
314 #endif
315
316 /* MIME preprocessor */
317
318 #ifdef EASYWIN /*Easy Win */
319 extern POINT _BufferSize;
320 #endif
321
322 struct input_code{
323     char *name;
324     nkf_char stat;
325     nkf_char score;
326     nkf_char index;
327     nkf_char buf[3];
328     void (*status_func)(struct input_code *, nkf_char);
329     nkf_char (*iconv_func)(nkf_char c2, nkf_char c1, nkf_char c0);
330     int _file_stat;
331 };
332
333 static char *input_codename = "";
334
335 #ifndef PERL_XS
336 static const char *CopyRight = COPY_RIGHT;
337 #endif
338 #if !defined(PERL_XS) && !defined(WIN32DLL)
339 static  nkf_char     noconvert(FILE *f);
340 #endif
341 static  void    module_connection(void);
342 static  nkf_char     kanji_convert(FILE *f);
343 static  nkf_char     h_conv(FILE *f,nkf_char c2,nkf_char c1);
344 static  nkf_char     push_hold_buf(nkf_char c2);
345 static  void    set_iconv(nkf_char f, nkf_char (*iconv_func)(nkf_char c2,nkf_char c1,nkf_char c0));
346 static  nkf_char     s_iconv(nkf_char c2,nkf_char c1,nkf_char c0);
347 static  nkf_char     s2e_conv(nkf_char c2, nkf_char c1, nkf_char *p2, nkf_char *p1);
348 static  nkf_char     e_iconv(nkf_char c2,nkf_char c1,nkf_char c0);
349 #if defined(UTF8_INPUT_ENABLE) || defined(UTF8_OUTPUT_ENABLE)
350 /* UCS Mapping
351  * 0: Shift_JIS, eucJP-ascii
352  * 1: eucJP-ms
353  * 2: CP932, CP51932
354  */
355 #define UCS_MAP_ASCII 0
356 #define UCS_MAP_MS    1
357 #define UCS_MAP_CP932 2
358 static int ms_ucs_map_f = UCS_MAP_ASCII;
359 #endif
360 #ifdef UTF8_INPUT_ENABLE
361 /* no NEC special, NEC-selected IBM extended and IBM extended characters */
362 static  int     no_cp932ext_f = FALSE;
363 /* ignore ZERO WIDTH NO-BREAK SPACE */
364 static  int     no_best_fit_chars_f = FALSE;
365 static  int     input_endian = ENDIAN_BIG;
366 static  nkf_char     unicode_subchar = '?'; /* the regular substitution character */
367 static  void    nkf_each_char_to_hex(void (*f)(nkf_char c2,nkf_char c1), nkf_char c);
368 static  void    encode_fallback_html(nkf_char c);
369 static  void    encode_fallback_xml(nkf_char c);
370 static  void    encode_fallback_java(nkf_char c);
371 static  void    encode_fallback_perl(nkf_char c);
372 static  void    encode_fallback_subchar(nkf_char c);
373 static  void    (*encode_fallback)(nkf_char c) = NULL;
374 static  nkf_char     w2e_conv(nkf_char c2,nkf_char c1,nkf_char c0,nkf_char *p2,nkf_char *p1);
375 static  nkf_char     w_iconv(nkf_char c2,nkf_char c1,nkf_char c0);
376 static  nkf_char     w_iconv16(nkf_char c2,nkf_char c1,nkf_char c0);
377 static  nkf_char     w_iconv32(nkf_char c2,nkf_char c1,nkf_char c0);
378 static  nkf_char        unicode_to_jis_common(nkf_char c2,nkf_char c1,nkf_char c0,nkf_char *p2,nkf_char *p1);
379 static  nkf_char        w_iconv_common(nkf_char c1,nkf_char c0,const unsigned short *const *pp,nkf_char psize,nkf_char *p2,nkf_char *p1);
380 static  void    w16w_conv(nkf_char val, nkf_char *p2, nkf_char *p1, nkf_char *p0);
381 static  nkf_char     ww16_conv(nkf_char c2, nkf_char c1, nkf_char c0);
382 static  nkf_char     w16e_conv(nkf_char val,nkf_char *p2,nkf_char *p1);
383 static  void    w_status(struct input_code *, nkf_char);
384 #endif
385 #ifdef UTF8_OUTPUT_ENABLE
386 static  int     output_bom_f = FALSE;
387 static  int     output_endian = ENDIAN_BIG;
388 static  nkf_char     e2w_conv(nkf_char c2,nkf_char c1);
389 static  void    w_oconv(nkf_char c2,nkf_char c1);
390 static  void    w_oconv16(nkf_char c2,nkf_char c1);
391 static  void    w_oconv32(nkf_char c2,nkf_char c1);
392 #endif
393 static  void    e_oconv(nkf_char c2,nkf_char c1);
394 static  nkf_char     e2s_conv(nkf_char c2, nkf_char c1, nkf_char *p2, nkf_char *p1);
395 static  void    s_oconv(nkf_char c2,nkf_char c1);
396 static  void    j_oconv(nkf_char c2,nkf_char c1);
397 static  void    fold_conv(nkf_char c2,nkf_char c1);
398 static  void    cr_conv(nkf_char c2,nkf_char c1);
399 static  void    z_conv(nkf_char c2,nkf_char c1);
400 static  void    rot_conv(nkf_char c2,nkf_char c1);
401 static  void    hira_conv(nkf_char c2,nkf_char c1);
402 static  void    base64_conv(nkf_char c2,nkf_char c1);
403 static  void    iso2022jp_check_conv(nkf_char c2,nkf_char c1);
404 static  void    no_connection(nkf_char c2,nkf_char c1);
405 static  nkf_char     no_connection2(nkf_char c2,nkf_char c1,nkf_char c0);
406
407 static  void    code_score(struct input_code *ptr);
408 static  void    code_status(nkf_char c);
409
410 static  void    std_putc(nkf_char c);
411 static  nkf_char     std_getc(FILE *f);
412 static  nkf_char     std_ungetc(nkf_char c,FILE *f);
413
414 static  nkf_char     broken_getc(FILE *f);
415 static  nkf_char     broken_ungetc(nkf_char c,FILE *f);
416
417 static  nkf_char     mime_begin(FILE *f);
418 static  nkf_char     mime_getc(FILE *f);
419 static  nkf_char     mime_ungetc(nkf_char c,FILE *f);
420
421 static  void    switch_mime_getc(void);
422 static  void    unswitch_mime_getc(void);
423 static  nkf_char     mime_begin_strict(FILE *f);
424 static  nkf_char     mime_getc_buf(FILE *f);
425 static  nkf_char     mime_ungetc_buf(nkf_char c,FILE *f);
426 static  nkf_char     mime_integrity(FILE *f,const unsigned char *p);
427
428 static  nkf_char     base64decode(nkf_char c);
429 static  void    mime_prechar(nkf_char c2, nkf_char c1);
430 static  void    mime_putc(nkf_char c);
431 static  void    open_mime(nkf_char c);
432 static  void    close_mime(void);
433 static  void    eof_mime(void);
434 static  void    mimeout_addchar(nkf_char c);
435 #ifndef PERL_XS
436 static  void    usage(void);
437 static  void    version(void);
438 #endif
439 static  void    options(unsigned char *c);
440 #if defined(PERL_XS) || defined(WIN32DLL)
441 static  void    reinit(void);
442 #endif
443
444 /* buffers */
445
446 #if !defined(PERL_XS) && !defined(WIN32DLL)
447 static unsigned char   stdibuf[IOBUF_SIZE];
448 static unsigned char   stdobuf[IOBUF_SIZE];
449 #endif
450 static unsigned char   hold_buf[HOLD_SIZE*2];
451 static int             hold_count = 0;
452
453 /* MIME preprocessor fifo */
454
455 #define MIME_BUF_SIZE   (1024)    /* 2^n ring buffer */
456 #define MIME_BUF_MASK   (MIME_BUF_SIZE-1)   
457 #define Fifo(n)         mime_buf[(n)&MIME_BUF_MASK]
458 static unsigned char           mime_buf[MIME_BUF_SIZE];
459 static unsigned int            mime_top = 0;
460 static unsigned int            mime_last = 0;  /* decoded */
461 static unsigned int            mime_input = 0; /* undecoded */
462 static nkf_char (*mime_iconv_back)(nkf_char c2,nkf_char c1,nkf_char c0) = NULL;
463
464 /* flags */
465 static int             unbuf_f = FALSE;
466 static int             estab_f = FALSE;
467 static int             nop_f = FALSE;
468 static int             binmode_f = TRUE;       /* binary mode */
469 static int             rot_f = FALSE;          /* rot14/43 mode */
470 static int             hira_f = FALSE;          /* hira/kata henkan */
471 static int             input_f = FALSE;        /* non fixed input code  */
472 static int             alpha_f = FALSE;        /* convert JIx0208 alphbet to ASCII */
473 static int             mime_f = STRICT_MIME;   /* convert MIME B base64 or Q */
474 static int             mime_decode_f = FALSE;  /* mime decode is explicitly on */
475 static int             mimebuf_f = FALSE;      /* MIME buffered input */
476 static int             broken_f = FALSE;       /* convert ESC-less broken JIS */
477 static int             iso8859_f = FALSE;      /* ISO8859 through */
478 static int             mimeout_f = FALSE;       /* base64 mode */
479 #if defined(MSDOS) || defined(__OS2__) 
480 static int             x0201_f = TRUE;         /* Assume JISX0201 kana */
481 #else
482 static int             x0201_f = NO_X0201;     /* Assume NO JISX0201 */
483 #endif
484 static int             iso2022jp_f = FALSE;    /* convert ISO-2022-JP */
485
486 #ifdef UNICODE_NORMALIZATION
487 static int nfc_f = FALSE;
488 static nkf_char (*i_nfc_getc)(FILE *) = std_getc; /* input of ugetc */
489 static nkf_char (*i_nfc_ungetc)(nkf_char c ,FILE *f) = std_ungetc;
490 static nkf_char nfc_getc(FILE *f);
491 static nkf_char nfc_ungetc(nkf_char c,FILE *f);
492 #endif
493
494 #ifdef INPUT_OPTION
495 static int cap_f = FALSE;
496 static nkf_char (*i_cgetc)(FILE *) = std_getc; /* input of cgetc */
497 static nkf_char (*i_cungetc)(nkf_char c ,FILE *f) = std_ungetc;
498 static nkf_char cap_getc(FILE *f);
499 static nkf_char cap_ungetc(nkf_char c,FILE *f);
500
501 static int url_f = FALSE;
502 static nkf_char (*i_ugetc)(FILE *) = std_getc; /* input of ugetc */
503 static nkf_char (*i_uungetc)(nkf_char c ,FILE *f) = std_ungetc;
504 static nkf_char url_getc(FILE *f);
505 static nkf_char url_ungetc(nkf_char c,FILE *f);
506 #endif
507
508 #if defined(INT_IS_SHORT)
509 #define NKF_INT32_C(n)   (n##L)
510 #else
511 #define NKF_INT32_C(n)   (n)
512 #endif
513 #define PREFIX_EUCG3    NKF_INT32_C(0x8F00)
514 #define CLASS_MASK      NKF_INT32_C(0xFF000000)
515 #define CLASS_UNICODE   NKF_INT32_C(0x01000000)
516 #define VALUE_MASK      NKF_INT32_C(0x00FFFFFF)
517 #define UNICODE_MAX     NKF_INT32_C(0x0010FFFF)
518 #define is_unicode_capsule(c) ((c & CLASS_MASK) == CLASS_UNICODE)
519 #define is_unicode_bmp(c) ((c & VALUE_MASK) <= NKF_INT32_C(0xFFFF))
520
521 #ifdef NUMCHAR_OPTION
522 static int numchar_f = FALSE;
523 static nkf_char (*i_ngetc)(FILE *) = std_getc; /* input of ugetc */
524 static nkf_char (*i_nungetc)(nkf_char c ,FILE *f) = std_ungetc;
525 static nkf_char numchar_getc(FILE *f);
526 static nkf_char numchar_ungetc(nkf_char c,FILE *f);
527 #endif
528
529 #ifdef CHECK_OPTION
530 static int noout_f = FALSE;
531 static void no_putc(nkf_char c);
532 static nkf_char debug_f = FALSE;
533 static void debug(const char *str);
534 static nkf_char (*iconv_for_check)(nkf_char c2,nkf_char c1,nkf_char c0) = 0;
535 #endif
536
537 static int guess_f = FALSE;
538 #if !defined PERL_XS
539 static  void    print_guessed_code(char *filename);
540 #endif
541 static  void    set_input_codename(char *codename);
542 static int is_inputcode_mixed = FALSE;
543 static int is_inputcode_set   = FALSE;
544
545 #ifdef EXEC_IO
546 static int exec_f = 0;
547 #endif
548
549 #ifdef SHIFTJIS_CP932
550 /* invert IBM extended characters to others */
551 static int cp51932_f = FALSE;
552
553 /* invert NEC-selected IBM extended characters to IBM extended characters */
554 static int cp932inv_f = TRUE;
555
556 /* static nkf_char cp932_conv(nkf_char c2, nkf_char c1); */
557 #endif /* SHIFTJIS_CP932 */
558
559 #ifdef X0212_ENABLE
560 static int x0212_f = FALSE;
561 static nkf_char x0212_shift(nkf_char c);
562 static nkf_char x0212_unshift(nkf_char c);
563 #endif
564 static int x0213_f = FALSE;
565
566 static unsigned char prefix_table[256];
567
568 static void set_code_score(struct input_code *ptr, nkf_char score);
569 static void clr_code_score(struct input_code *ptr, nkf_char score);
570 static void status_disable(struct input_code *ptr);
571 static void status_push_ch(struct input_code *ptr, nkf_char c);
572 static void status_clear(struct input_code *ptr);
573 static void status_reset(struct input_code *ptr);
574 static void status_reinit(struct input_code *ptr);
575 static void status_check(struct input_code *ptr, nkf_char c);
576 static void e_status(struct input_code *, nkf_char);
577 static void s_status(struct input_code *, nkf_char);
578
579 struct input_code input_code_list[] = {
580     {"EUC-JP",    0, 0, 0, {0, 0, 0}, e_status, e_iconv, 0},
581     {"Shift_JIS", 0, 0, 0, {0, 0, 0}, s_status, s_iconv, 0},
582 #ifdef UTF8_INPUT_ENABLE
583     {"UTF-8",     0, 0, 0, {0, 0, 0}, w_status, w_iconv, 0},
584     {"UTF-16",    0, 0, 0, {0, 0, 0},     NULL, w_iconv16, 0},
585     {"UTF-32",    0, 0, 0, {0, 0, 0},     NULL, w_iconv32, 0},
586 #endif
587     {0}
588 };
589
590 static int              mimeout_mode = 0;
591 static int              base64_count = 0;
592
593 /* X0208 -> ASCII converter */
594
595 /* fold parameter */
596 static int             f_line = 0;    /* chars in line */
597 static int             f_prev = 0;
598 static int             fold_preserve_f = FALSE; /* preserve new lines */
599 static int             fold_f  = FALSE;
600 static int             fold_len  = 0;
601
602 /* options */
603 static unsigned char   kanji_intro = DEFAULT_J;
604 static unsigned char   ascii_intro = DEFAULT_R;
605
606 /* Folding */
607
608 #define FOLD_MARGIN  10
609 #define DEFAULT_FOLD 60
610
611 static int             fold_margin  = FOLD_MARGIN;
612
613 /* converters */
614
615 #ifdef DEFAULT_CODE_JIS
616 #   define  DEFAULT_CONV j_oconv
617 #endif
618 #ifdef DEFAULT_CODE_SJIS
619 #   define  DEFAULT_CONV s_oconv
620 #endif
621 #ifdef DEFAULT_CODE_EUC
622 #   define  DEFAULT_CONV e_oconv
623 #endif
624 #ifdef DEFAULT_CODE_UTF8
625 #   define  DEFAULT_CONV w_oconv
626 #endif
627
628 /* process default */
629 static void (*output_conv)(nkf_char c2,nkf_char c1) = DEFAULT_CONV;
630
631 static void (*oconv)(nkf_char c2,nkf_char c1) = no_connection;
632 /* s_iconv or oconv */
633 static nkf_char (*iconv)(nkf_char c2,nkf_char c1,nkf_char c0) = no_connection2;
634
635 static void (*o_zconv)(nkf_char c2,nkf_char c1) = no_connection;
636 static void (*o_fconv)(nkf_char c2,nkf_char c1) = no_connection;
637 static void (*o_crconv)(nkf_char c2,nkf_char c1) = no_connection;
638 static void (*o_rot_conv)(nkf_char c2,nkf_char c1) = no_connection;
639 static void (*o_hira_conv)(nkf_char c2,nkf_char c1) = no_connection;
640 static void (*o_base64conv)(nkf_char c2,nkf_char c1) = no_connection;
641 static void (*o_iso2022jp_check_conv)(nkf_char c2,nkf_char c1) = no_connection;
642
643 /* static redirections */
644
645 static  void   (*o_putc)(nkf_char c) = std_putc;
646
647 static  nkf_char    (*i_getc)(FILE *f) = std_getc; /* general input */
648 static  nkf_char    (*i_ungetc)(nkf_char c,FILE *f) =std_ungetc;
649
650 static  nkf_char    (*i_bgetc)(FILE *) = std_getc; /* input of mgetc */
651 static  nkf_char    (*i_bungetc)(nkf_char c ,FILE *f) = std_ungetc;
652
653 static  void   (*o_mputc)(nkf_char c) = std_putc ; /* output of mputc */
654
655 static  nkf_char    (*i_mgetc)(FILE *) = std_getc; /* input of mgetc */
656 static  nkf_char    (*i_mungetc)(nkf_char c ,FILE *f) = std_ungetc;
657
658 /* for strict mime */
659 static  nkf_char    (*i_mgetc_buf)(FILE *) = std_getc; /* input of mgetc_buf */
660 static  nkf_char    (*i_mungetc_buf)(nkf_char c,FILE *f) = std_ungetc;
661
662 /* Global states */
663 static int output_mode = ASCII,    /* output kanji mode */
664            input_mode =  ASCII,    /* input kanji mode */
665            shift_mode =  FALSE;    /* TRUE shift out, or X0201  */
666 static int mime_decode_mode =   FALSE;    /* MIME mode B base64, Q hex */
667
668 /* X0201 / X0208 conversion tables */
669
670 /* X0201 kana conversion table */
671 /* 90-9F A0-DF */
672 static const
673 unsigned char cv[]= {
674     0x21,0x21,0x21,0x23,0x21,0x56,0x21,0x57,
675     0x21,0x22,0x21,0x26,0x25,0x72,0x25,0x21,
676     0x25,0x23,0x25,0x25,0x25,0x27,0x25,0x29,
677     0x25,0x63,0x25,0x65,0x25,0x67,0x25,0x43,
678     0x21,0x3c,0x25,0x22,0x25,0x24,0x25,0x26,
679     0x25,0x28,0x25,0x2a,0x25,0x2b,0x25,0x2d,
680     0x25,0x2f,0x25,0x31,0x25,0x33,0x25,0x35,
681     0x25,0x37,0x25,0x39,0x25,0x3b,0x25,0x3d,
682     0x25,0x3f,0x25,0x41,0x25,0x44,0x25,0x46,
683     0x25,0x48,0x25,0x4a,0x25,0x4b,0x25,0x4c,
684     0x25,0x4d,0x25,0x4e,0x25,0x4f,0x25,0x52,
685     0x25,0x55,0x25,0x58,0x25,0x5b,0x25,0x5e,
686     0x25,0x5f,0x25,0x60,0x25,0x61,0x25,0x62,
687     0x25,0x64,0x25,0x66,0x25,0x68,0x25,0x69,
688     0x25,0x6a,0x25,0x6b,0x25,0x6c,0x25,0x6d,
689     0x25,0x6f,0x25,0x73,0x21,0x2b,0x21,0x2c,
690     0x00,0x00};
691
692
693 /* X0201 kana conversion table for daguten */
694 /* 90-9F A0-DF */
695 static const
696 unsigned char dv[]= { 
697     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
698     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
699     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
700     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
701     0x00,0x00,0x00,0x00,0x00,0x00,0x25,0x74,
702     0x00,0x00,0x00,0x00,0x25,0x2c,0x25,0x2e,
703     0x25,0x30,0x25,0x32,0x25,0x34,0x25,0x36,
704     0x25,0x38,0x25,0x3a,0x25,0x3c,0x25,0x3e,
705     0x25,0x40,0x25,0x42,0x25,0x45,0x25,0x47,
706     0x25,0x49,0x00,0x00,0x00,0x00,0x00,0x00,
707     0x00,0x00,0x00,0x00,0x25,0x50,0x25,0x53,
708     0x25,0x56,0x25,0x59,0x25,0x5c,0x00,0x00,
709     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
710     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
711     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
712     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
713     0x00,0x00};
714
715 /* X0201 kana conversion table for han-daguten */
716 /* 90-9F A0-DF */
717 static const
718 unsigned char ev[]= { 
719     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
720     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
721     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
722     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
723     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
724     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
725     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
726     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
727     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
728     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
729     0x00,0x00,0x00,0x00,0x25,0x51,0x25,0x54,
730     0x25,0x57,0x25,0x5a,0x25,0x5d,0x00,0x00,
731     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
732     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
733     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
734     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
735     0x00,0x00};
736
737
738 /* X0208 kigou conversion table */
739 /* 0x8140 - 0x819e */
740 static const
741 unsigned char fv[] = {
742
743     0x00,0x00,0x00,0x00,0x2c,0x2e,0x00,0x3a,
744     0x3b,0x3f,0x21,0x00,0x00,0x27,0x60,0x00,
745     0x5e,0x00,0x5f,0x00,0x00,0x00,0x00,0x00,
746     0x00,0x00,0x00,0x00,0x00,0x2d,0x00,0x2f,
747     0x5c,0x00,0x00,0x7c,0x00,0x00,0x60,0x27,
748     0x22,0x22,0x28,0x29,0x00,0x00,0x5b,0x5d,
749     0x7b,0x7d,0x3c,0x3e,0x00,0x00,0x00,0x00,
750     0x00,0x00,0x00,0x00,0x2b,0x2d,0x00,0x00,
751     0x00,0x3d,0x00,0x3c,0x3e,0x00,0x00,0x00,
752     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
753     0x24,0x00,0x00,0x25,0x23,0x26,0x2a,0x40,
754     0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
755 } ;
756
757
758 #define    CRLF      1
759
760 static int             file_out_f = FALSE;
761 #ifdef OVERWRITE
762 static int             overwrite_f = FALSE;
763 static int             preserve_time_f = FALSE;
764 static int             backup_f = FALSE;
765 static char            *backup_suffix = "";
766 static char *get_backup_filename(const char *suffix, const char *filename);
767 #endif
768
769 static int             crmode_f = 0;   /* CR, NL, CRLF */
770 #ifdef EASYWIN /*Easy Win */
771 static int             end_check;
772 #endif /*Easy Win */
773
774 #define STD_GC_BUFSIZE (256)
775 nkf_char std_gc_buf[STD_GC_BUFSIZE];
776 nkf_char std_gc_ndx;
777
778 #ifdef WIN32DLL
779 #include "nkf32dll.c"
780 #elif defined(PERL_XS)
781 #else /* WIN32DLL */
782 int main(int argc, char **argv)
783 {
784     FILE  *fin;
785     unsigned char  *cp;
786
787     char *outfname = NULL;
788     char *origfname;
789
790 #ifdef EASYWIN /*Easy Win */
791     _BufferSize.y = 400;/*Set Scroll Buffer Size*/
792 #endif
793
794     for (argc--,argv++; (argc > 0) && **argv == '-'; argc--, argv++) {
795         cp = (unsigned char *)*argv;
796         options(cp);
797 #ifdef EXEC_IO
798         if (exec_f){
799             int fds[2], pid;
800             if (pipe(fds) < 0 || (pid = fork()) < 0){
801                 abort();
802             }
803             if (pid == 0){
804                 if (exec_f > 0){
805                     close(fds[0]);
806                     dup2(fds[1], 1);
807                 }else{
808                     close(fds[1]);
809                     dup2(fds[0], 0);
810                 }
811                 execvp(argv[1], &argv[1]);
812             }
813             if (exec_f > 0){
814                 close(fds[1]);
815                 dup2(fds[0], 0);
816             }else{
817                 close(fds[0]);
818                 dup2(fds[1], 1);
819             }
820             argc = 0;
821             break;
822         }
823 #endif
824     }
825     if(x0201_f == WISH_TRUE)
826          x0201_f = ((!iso2022jp_f)? TRUE : NO_X0201);
827
828     if (binmode_f == TRUE)
829 #if defined(__OS2__) && (defined(__IBMC__) || defined(__IBMCPP__))
830     if (freopen("","wb",stdout) == NULL) 
831         return (-1);
832 #else
833     setbinmode(stdout);
834 #endif
835
836     if (unbuf_f)
837       setbuf(stdout, (char *) NULL);
838     else
839       setvbuffer(stdout, (char *) stdobuf, IOBUF_SIZE);
840
841     if (argc == 0) {
842       if (binmode_f == TRUE)
843 #if defined(__OS2__) && (defined(__IBMC__) || defined(__IBMCPP__))
844       if (freopen("","rb",stdin) == NULL) return (-1);
845 #else
846       setbinmode(stdin);
847 #endif
848       setvbuffer(stdin, (char *) stdibuf, IOBUF_SIZE);
849       if (nop_f)
850           noconvert(stdin);
851       else {
852           kanji_convert(stdin);
853           if (guess_f) print_guessed_code(NULL);
854       }
855     } else {
856       int nfiles = argc;
857         int is_argument_error = FALSE;
858       while (argc--) {
859             is_inputcode_mixed = FALSE;
860             is_inputcode_set   = FALSE;
861             input_codename = "";
862 #ifdef CHECK_OPTION
863             iconv_for_check = 0;
864 #endif
865           if ((fin = fopen((origfname = *argv++), "r")) == NULL) {
866               perror(*--argv);
867                 *argv++;
868                 is_argument_error = TRUE;
869                 continue;
870           } else {
871 #ifdef OVERWRITE
872               int fd = 0;
873               int fd_backup = 0;
874 #endif
875
876 /* reopen file for stdout */
877               if (file_out_f == TRUE) {
878 #ifdef OVERWRITE
879                   if (overwrite_f){
880                       outfname = malloc(strlen(origfname)
881                                         + strlen(".nkftmpXXXXXX")
882                                         + 1);
883                       if (!outfname){
884                           perror(origfname);
885                           return -1;
886                       }
887                       strcpy(outfname, origfname);
888 #ifdef MSDOS
889                       {
890                           int i;
891                           for (i = strlen(outfname); i; --i){
892                               if (outfname[i - 1] == '/'
893                                   || outfname[i - 1] == '\\'){
894                                   break;
895                               }
896                           }
897                           outfname[i] = '\0';
898                       }
899                       strcat(outfname, "ntXXXXXX");
900                       mktemp(outfname);
901                         fd = open(outfname, O_WRONLY | O_CREAT | O_TRUNC | O_EXCL,
902                                 S_IREAD | S_IWRITE);
903 #else
904                       strcat(outfname, ".nkftmpXXXXXX");
905                       fd = mkstemp(outfname);
906 #endif
907                       if (fd < 0
908                           || (fd_backup = dup(fileno(stdout))) < 0
909                           || dup2(fd, fileno(stdout)) < 0
910                           ){
911                           perror(origfname);
912                           return -1;
913                       }
914                   }else
915 #endif
916                   if(argc == 1 ) {
917                       outfname = *argv++;
918                       argc--;
919                   } else {
920                       outfname = "nkf.out";
921                   }
922
923                   if(freopen(outfname, "w", stdout) == NULL) {
924                       perror (outfname);
925                       return (-1);
926                   }
927                   if (binmode_f == TRUE) {
928 #if defined(__OS2__) && (defined(__IBMC__) || defined(__IBMCPP__))
929                       if (freopen("","wb",stdout) == NULL) 
930                            return (-1);
931 #else
932                       setbinmode(stdout);
933 #endif
934                   }
935               }
936               if (binmode_f == TRUE)
937 #if defined(__OS2__) && (defined(__IBMC__) || defined(__IBMCPP__))
938                  if (freopen("","rb",fin) == NULL) 
939                     return (-1);
940 #else
941                  setbinmode(fin);
942 #endif 
943               setvbuffer(fin, (char *) stdibuf, IOBUF_SIZE);
944               if (nop_f)
945                   noconvert(fin);
946               else {
947                   char *filename = NULL;
948                   kanji_convert(fin);
949                   if (nfiles > 1) filename = origfname;
950                   if (guess_f) print_guessed_code(filename);
951               }
952               fclose(fin);
953 #ifdef OVERWRITE
954               if (overwrite_f) {
955                   struct stat     sb;
956 #if defined(MSDOS) && !defined(__MINGW32__) && !defined(__WIN32__) && !defined(__WATCOMC__) && !defined(__EMX__) && !defined(__OS2__) && !defined(__DJGPP__)
957                   time_t tb[2];
958 #else
959                   struct utimbuf  tb;
960 #endif
961
962                   fflush(stdout);
963                   close(fd);
964                   if (dup2(fd_backup, fileno(stdout)) < 0){
965                       perror("dup2");
966                   }
967                   if (stat(origfname, &sb)) {
968                       fprintf(stderr, "Can't stat %s\n", origfname);
969                   }
970                   /* \e$B%Q!<%_%C%7%g%s$rI|85\e(B */
971                   if (chmod(outfname, sb.st_mode)) {
972                       fprintf(stderr, "Can't set permission %s\n", outfname);
973                   }
974
975                   /* \e$B%?%$%`%9%?%s%W$rI|85\e(B */
976                     if(preserve_time_f){
977 #if defined(MSDOS) && !defined(__MINGW32__) && !defined(__WIN32__) && !defined(__WATCOMC__) && !defined(__EMX__) && !defined(__OS2__) && !defined(__DJGPP__)
978                         tb[0] = tb[1] = sb.st_mtime;
979                         if (utime(outfname, tb)) {
980                             fprintf(stderr, "Can't set timestamp %s\n", outfname);
981                         }
982 #else
983                         tb.actime  = sb.st_atime;
984                         tb.modtime = sb.st_mtime;
985                         if (utime(outfname, &tb)) {
986                             fprintf(stderr, "Can't set timestamp %s\n", outfname);
987                         }
988 #endif
989                     }
990                     if(backup_f){
991                         char *backup_filename = get_backup_filename(backup_suffix, origfname);
992 #ifdef MSDOS
993                         unlink(backup_filename);
994 #endif
995                         if (rename(origfname, backup_filename)) {
996                             perror(backup_filename);
997                             fprintf(stderr, "Can't rename %s to %s\n",
998                                     origfname, backup_filename);
999                         }
1000                     }else{
1001 #ifdef MSDOS
1002                         if (unlink(origfname)){
1003                             perror(origfname);
1004                         }
1005 #endif
1006                     }
1007                   if (rename(outfname, origfname)) {
1008                       perror(origfname);
1009                       fprintf(stderr, "Can't rename %s to %s\n",
1010                               outfname, origfname);
1011                   }
1012                   free(outfname);
1013               }
1014 #endif
1015           }
1016       }
1017         if (is_argument_error)
1018             return(-1);
1019     }
1020 #ifdef EASYWIN /*Easy Win */
1021     if (file_out_f == FALSE) 
1022         scanf("%d",&end_check);
1023     else 
1024         fclose(stdout);
1025 #else /* for Other OS */
1026     if (file_out_f == TRUE) 
1027         fclose(stdout);
1028 #endif /*Easy Win */
1029     return (0);
1030 }
1031 #endif /* WIN32DLL */
1032
1033 #ifdef OVERWRITE
1034 char *get_backup_filename(const char *suffix, const char *filename)
1035 {
1036     char *backup_filename;
1037     int asterisk_count = 0;
1038     int i, j;
1039     int filename_length = strlen(filename);
1040
1041     for(i = 0; suffix[i]; i++){
1042         if(suffix[i] == '*') asterisk_count++;
1043     }
1044
1045     if(asterisk_count){
1046         backup_filename = malloc(strlen(suffix) + (asterisk_count * (filename_length - 1)) + 1);
1047         if (!backup_filename){
1048             perror("Can't malloc backup filename.");
1049             return NULL;
1050         }
1051
1052         for(i = 0, j = 0; suffix[i];){
1053             if(suffix[i] == '*'){
1054                 backup_filename[j] = '\0';
1055                 strncat(backup_filename, filename, filename_length);
1056                 i++;
1057                 j += filename_length;
1058             }else{
1059                 backup_filename[j++] = suffix[i++];
1060             }
1061         }
1062         backup_filename[j] = '\0';
1063     }else{
1064         j = strlen(suffix) + filename_length;
1065         backup_filename = malloc( + 1);
1066         strcpy(backup_filename, filename);
1067         strcat(backup_filename, suffix);
1068         backup_filename[j] = '\0';
1069     }
1070     return backup_filename;
1071 }
1072 #endif
1073
1074 static const
1075 struct {
1076     const char *name;
1077     const char *alias;
1078 } long_option[] = {
1079     {"ic=", ""},
1080     {"oc=", ""},
1081     {"base64","jMB"},
1082     {"euc","e"},
1083     {"euc-input","E"},
1084     {"fj","jm"},
1085     {"help","v"},
1086     {"jis","j"},
1087     {"jis-input","J"},
1088     {"mac","sLm"},
1089     {"mime","jM"},
1090     {"mime-input","m"},
1091     {"msdos","sLw"},
1092     {"sjis","s"},
1093     {"sjis-input","S"},
1094     {"unix","eLu"},
1095     {"version","V"},
1096     {"windows","sLw"},
1097     {"hiragana","h1"},
1098     {"katakana","h2"},
1099     {"katakana-hiragana","h3"},
1100     {"guess", "g"},
1101     {"cp932", ""},
1102     {"no-cp932", ""},
1103 #ifdef X0212_ENABLE
1104     {"x0212", ""},
1105 #endif
1106 #ifdef UTF8_OUTPUT_ENABLE
1107     {"utf8", "w"},
1108     {"utf16", "w16"},
1109     {"ms-ucs-map", ""},
1110     {"fb-skip", ""},
1111     {"fb-html", ""},
1112     {"fb-xml", ""},
1113     {"fb-perl", ""},
1114     {"fb-java", ""},
1115     {"fb-subchar", ""},
1116     {"fb-subchar=", ""},
1117 #endif
1118 #ifdef UTF8_INPUT_ENABLE
1119     {"utf8-input", "W"},
1120     {"utf16-input", "W16"},
1121     {"no-cp932ext", ""},
1122     {"no-best-fit-chars",""},
1123 #endif
1124 #ifdef UNICODE_NORMALIZATION
1125     {"utf8mac-input", ""},
1126 #endif
1127 #ifdef OVERWRITE
1128     {"overwrite", ""},
1129     {"overwrite=", ""},
1130     {"in-place", ""},
1131     {"in-place=", ""},
1132 #endif
1133 #ifdef INPUT_OPTION
1134     {"cap-input", ""},
1135     {"url-input", ""},
1136 #endif
1137 #ifdef NUMCHAR_OPTION
1138     {"numchar-input", ""},
1139 #endif
1140 #ifdef CHECK_OPTION
1141     {"no-output", ""},
1142     {"debug", ""},
1143 #endif
1144 #ifdef SHIFTJIS_CP932
1145     {"cp932inv", ""},
1146 #endif
1147 #ifdef EXEC_IO
1148     {"exec-in", ""},
1149     {"exec-out", ""},
1150 #endif
1151     {"prefix=", ""},
1152 };
1153
1154 static int option_mode = 0;
1155
1156 void options(unsigned char *cp)
1157 {
1158     nkf_char i, j;
1159     unsigned char *p;
1160     unsigned char *cp_back = NULL;
1161     char codeset[32];
1162
1163     if (option_mode==1)
1164         return;
1165     while(*cp && *cp++!='-');
1166     while (*cp || cp_back) {
1167         if(!*cp){
1168             cp = cp_back;
1169             cp_back = NULL;
1170             continue;
1171         }
1172         p = 0;
1173         switch (*cp++) {
1174         case '-':  /* literal options */
1175             if (!*cp || *cp == SPACE) {        /* ignore the rest of arguments */
1176                 option_mode = 1;
1177                 return;
1178             }
1179             for (i=0;i<sizeof(long_option)/sizeof(long_option[0]);i++) {
1180                 p = (unsigned char *)long_option[i].name;
1181                 for (j=0;*p && *p != '=' && *p == cp[j];p++, j++);
1182                 if (*p == cp[j] || cp[j] == ' '){
1183                     p = &cp[j] + 1;
1184                     break;
1185                 }
1186                 p = 0;
1187             }
1188             if (p == 0) return;
1189             while(*cp && *cp != SPACE && cp++);
1190             if (long_option[i].alias[0]){
1191                 cp_back = cp;
1192                 cp = (unsigned char *)long_option[i].alias;
1193             }else{
1194                 if (strcmp(long_option[i].name, "ic=") == 0){
1195                     for (i=0; i < 16 && SPACE < p[i] && p[i] < DEL; i++){
1196                         codeset[i] = nkf_toupper(p[i]);
1197                     }
1198                     codeset[i] = 0;
1199                     if(strcmp(codeset, "ISO-2022-JP") == 0){
1200                         input_f = JIS_INPUT;
1201                     }else if(strcmp(codeset, "X-ISO2022JP-CP932") == 0 ||
1202                       strcmp(codeset, "CP50220") == 0 ||
1203                       strcmp(codeset, "CP50221") == 0 ||
1204                       strcmp(codeset, "CP50222") == 0){
1205                         input_f = JIS_INPUT;
1206 #ifdef SHIFTJIS_CP932
1207                         cp51932_f = TRUE;
1208 #endif
1209 #ifdef UTF8_OUTPUT_ENABLE
1210                         ms_ucs_map_f = UCS_MAP_CP932;
1211 #endif
1212                     }else if(strcmp(codeset, "ISO-2022-JP-1") == 0){
1213                         input_f = JIS_INPUT;
1214 #ifdef X0212_ENABLE
1215                         x0212_f = TRUE;
1216 #endif
1217                     }else if(strcmp(codeset, "ISO-2022-JP-3") == 0){
1218                         input_f = JIS_INPUT;
1219 #ifdef X0212_ENABLE
1220                         x0212_f = TRUE;
1221 #endif
1222                         x0213_f = TRUE;
1223                     }else if(strcmp(codeset, "SHIFT_JIS") == 0){
1224                         input_f = SJIS_INPUT;
1225                     }else if(strcmp(codeset, "WINDOWS-31J") == 0 ||
1226                              strcmp(codeset, "CSWINDOWS31J") == 0 ||
1227                              strcmp(codeset, "CP932") == 0 ||
1228                              strcmp(codeset, "MS932") == 0){
1229                         input_f = SJIS_INPUT;
1230 #ifdef SHIFTJIS_CP932
1231                         cp51932_f = TRUE;
1232 #endif
1233 #ifdef UTF8_OUTPUT_ENABLE
1234                         ms_ucs_map_f = UCS_MAP_CP932;
1235 #endif
1236                     }else if(strcmp(codeset, "EUCJP") == 0 ||
1237                              strcmp(codeset, "EUC-JP") == 0){
1238                         input_f = EUC_INPUT;
1239                     }else if(strcmp(codeset, "CP51932") == 0){
1240                         input_f = EUC_INPUT;
1241 #ifdef SHIFTJIS_CP932
1242                         cp51932_f = TRUE;
1243 #endif
1244 #ifdef UTF8_OUTPUT_ENABLE
1245                         ms_ucs_map_f = UCS_MAP_CP932;
1246 #endif
1247                     }else if(strcmp(codeset, "EUC-JP-MS") == 0 ||
1248                              strcmp(codeset, "EUCJP-MS") == 0 ||
1249                              strcmp(codeset, "EUCJPMS") == 0){
1250                         input_f = EUC_INPUT;
1251 #ifdef SHIFTJIS_CP932
1252                         cp51932_f = FALSE;
1253 #endif
1254 #ifdef UTF8_OUTPUT_ENABLE
1255                         ms_ucs_map_f = UCS_MAP_MS;
1256 #endif
1257                     }else if(strcmp(codeset, "EUC-JP-ASCII") == 0 ||
1258                              strcmp(codeset, "EUCJP-ASCII") == 0){
1259                         input_f = EUC_INPUT;
1260 #ifdef SHIFTJIS_CP932
1261                         cp51932_f = FALSE;
1262 #endif
1263 #ifdef UTF8_OUTPUT_ENABLE
1264                         ms_ucs_map_f = UCS_MAP_ASCII;
1265 #endif
1266                     }else if(strcmp(codeset, "SHIFT_JISX0213") == 0 ||
1267                              strcmp(codeset, "SHIFT_JIS-2004") == 0){
1268                         input_f = SJIS_INPUT;
1269                         x0213_f = TRUE;
1270 #ifdef SHIFTJIS_CP932
1271                         cp51932_f = FALSE;
1272 #endif
1273                     }else if(strcmp(codeset, "EUC-JISX0213") == 0 ||
1274                              strcmp(codeset, "EUC-JIS-2004") == 0){
1275                         input_f = EUC_INPUT;
1276                         x0213_f = TRUE;
1277 #ifdef SHIFTJIS_CP932
1278                         cp51932_f = FALSE;
1279 #endif
1280 #ifdef UTF8_INPUT_ENABLE
1281                     }else if(strcmp(codeset, "UTF-8") == 0 ||
1282                              strcmp(codeset, "UTF-8N") == 0 ||
1283                              strcmp(codeset, "UTF-8-BOM") == 0){
1284                         input_f = UTF8_INPUT;
1285 #ifdef UNICODE_NORMALIZATION
1286                     }else if(strcmp(codeset, "UTF8-MAC") == 0 ||
1287                              strcmp(codeset, "UTF-8-MAC") == 0){
1288                         input_f = UTF8_INPUT;
1289                         nfc_f = TRUE;
1290 #endif
1291                     }else if(strcmp(codeset, "UTF-16") == 0 ||
1292                              strcmp(codeset, "UTF-16BE") == 0 ||
1293                              strcmp(codeset, "UTF-16BE-BOM") == 0){
1294                         input_f = UTF16_INPUT;
1295                         input_endian = ENDIAN_BIG;
1296                     }else if(strcmp(codeset, "UTF-16LE") == 0 ||
1297                              strcmp(codeset, "UTF-16LE-BOM") == 0){
1298                         input_f = UTF16_INPUT;
1299                         input_endian = ENDIAN_LITTLE;
1300                     }else if(strcmp(codeset, "UTF-32") == 0 ||
1301                              strcmp(codeset, "UTF-32BE") == 0 ||
1302                              strcmp(codeset, "UTF-32BE-BOM") == 0){
1303                         input_f = UTF32_INPUT;
1304                         input_endian = ENDIAN_BIG;
1305                     }else if(strcmp(codeset, "UTF-32LE") == 0 ||
1306                              strcmp(codeset, "UTF-32LE-BOM") == 0){
1307                         input_f = UTF32_INPUT;
1308                         input_endian = ENDIAN_LITTLE;
1309 #endif
1310                     }
1311                     continue;
1312                 }
1313                 if (strcmp(long_option[i].name, "oc=") == 0){
1314                     x0201_f = FALSE;
1315                     for (i=0; i < 16 && SPACE < p[i] && p[i] < DEL; i++){
1316                         codeset[i] = nkf_toupper(p[i]);
1317                     }
1318                     codeset[i] = 0;
1319                     if(strcmp(codeset, "ISO-2022-JP") == 0){
1320                         output_conv = j_oconv;
1321                     }else if(strcmp(codeset, "X-ISO2022JP-CP932") == 0){
1322                         output_conv = j_oconv;
1323                         no_cp932ext_f = TRUE;
1324 #ifdef SHIFTJIS_CP932
1325                         cp932inv_f = FALSE;
1326 #endif
1327 #ifdef UTF8_OUTPUT_ENABLE
1328                         ms_ucs_map_f = UCS_MAP_CP932;
1329 #endif
1330                     }else if(strcmp(codeset, "CP50220") == 0){
1331                         output_conv = j_oconv;
1332                         x0201_f = TRUE;
1333 #ifdef SHIFTJIS_CP932
1334                         cp932inv_f = FALSE;
1335 #endif
1336 #ifdef UTF8_OUTPUT_ENABLE
1337                         ms_ucs_map_f = UCS_MAP_CP932;
1338 #endif
1339                     }else if(strcmp(codeset, "CP50221") == 0){
1340                         output_conv = j_oconv;
1341 #ifdef SHIFTJIS_CP932
1342                         cp932inv_f = FALSE;
1343 #endif
1344 #ifdef UTF8_OUTPUT_ENABLE
1345                         ms_ucs_map_f = UCS_MAP_CP932;
1346 #endif
1347                     }else if(strcmp(codeset, "ISO-2022-JP-1") == 0){
1348                         output_conv = j_oconv;
1349 #ifdef X0212_ENABLE
1350                         x0212_f = TRUE;
1351 #endif
1352 #ifdef SHIFTJIS_CP932
1353                         cp932inv_f = FALSE;
1354 #endif
1355                     }else if(strcmp(codeset, "ISO-2022-JP-3") == 0){
1356                         output_conv = j_oconv;
1357 #ifdef X0212_ENABLE
1358                         x0212_f = TRUE;
1359 #endif
1360                         x0213_f = TRUE;
1361 #ifdef SHIFTJIS_CP932
1362                         cp932inv_f = FALSE;
1363 #endif
1364                     }else if(strcmp(codeset, "SHIFT_JIS") == 0){
1365                         output_conv = s_oconv;
1366                     }else if(strcmp(codeset, "WINDOWS-31J") == 0 ||
1367                              strcmp(codeset, "CSWINDOWS31J") == 0 ||
1368                              strcmp(codeset, "CP932") == 0 ||
1369                              strcmp(codeset, "MS932") == 0){
1370                         output_conv = s_oconv;
1371 #ifdef UTF8_OUTPUT_ENABLE
1372                         ms_ucs_map_f = UCS_MAP_CP932;
1373 #endif
1374                     }else if(strcmp(codeset, "EUCJP") == 0 ||
1375                              strcmp(codeset, "EUC-JP") == 0){
1376                         output_conv = e_oconv;
1377                     }else if(strcmp(codeset, "CP51932") == 0){
1378                         output_conv = e_oconv;
1379 #ifdef SHIFTJIS_CP932
1380                         cp932inv_f = FALSE;
1381 #endif
1382 #ifdef UTF8_OUTPUT_ENABLE
1383                         ms_ucs_map_f = UCS_MAP_CP932;
1384 #endif
1385                     }else if(strcmp(codeset, "EUC-JP-MS") == 0 ||
1386                              strcmp(codeset, "EUCJP-MS") == 0 ||
1387                              strcmp(codeset, "EUCJPMS") == 0){
1388                         output_conv = e_oconv;
1389 #ifdef X0212_ENABLE
1390                         x0212_f = TRUE;
1391 #endif
1392 #ifdef UTF8_OUTPUT_ENABLE
1393                         ms_ucs_map_f = UCS_MAP_MS;
1394 #endif
1395                     }else if(strcmp(codeset, "EUC-JP-ASCII") == 0 ||
1396                              strcmp(codeset, "EUCJP-ASCII") == 0){
1397                         output_conv = e_oconv;
1398 #ifdef X0212_ENABLE
1399                         x0212_f = TRUE;
1400 #endif
1401 #ifdef UTF8_OUTPUT_ENABLE
1402                         ms_ucs_map_f = UCS_MAP_ASCII;
1403 #endif
1404                     }else if(strcmp(codeset, "SHIFT_JISX0213") == 0 ||
1405                              strcmp(codeset, "SHIFT_JIS-2004") == 0){
1406                         output_conv = s_oconv;
1407                         x0213_f = TRUE;
1408 #ifdef SHIFTJIS_CP932
1409                         cp932inv_f = FALSE;
1410 #endif
1411                     }else if(strcmp(codeset, "EUC-JISX0213") == 0 ||
1412                              strcmp(codeset, "EUC-JIS-2004") == 0){
1413                         output_conv = e_oconv;
1414 #ifdef X0212_ENABLE
1415                         x0212_f = TRUE;
1416 #endif
1417                         x0213_f = TRUE;
1418 #ifdef SHIFTJIS_CP932
1419                         cp932inv_f = FALSE;
1420 #endif
1421 #ifdef UTF8_OUTPUT_ENABLE
1422                     }else if(strcmp(codeset, "UTF-8") == 0){
1423                         output_conv = w_oconv;
1424                     }else if(strcmp(codeset, "UTF-8N") == 0){
1425                         output_conv = w_oconv;
1426                     }else if(strcmp(codeset, "UTF-8-BOM") == 0){
1427                         output_conv = w_oconv;
1428                         output_bom_f = TRUE;
1429                     }else if(strcmp(codeset, "UTF-16BE") == 0){
1430                         output_conv = w_oconv16;
1431                     }else if(strcmp(codeset, "UTF-16") == 0 ||
1432                              strcmp(codeset, "UTF-16BE-BOM") == 0){
1433                         output_conv = w_oconv16;
1434                         output_bom_f = TRUE;
1435                     }else if(strcmp(codeset, "UTF-16LE") == 0){
1436                         output_conv = w_oconv16;
1437                         output_endian = ENDIAN_LITTLE;
1438                     }else if(strcmp(codeset, "UTF-16LE-BOM") == 0){
1439                         output_conv = w_oconv16;
1440                         output_endian = ENDIAN_LITTLE;
1441                         output_bom_f = TRUE;
1442                     }else if(strcmp(codeset, "UTF-32") == 0 ||
1443                              strcmp(codeset, "UTF-32BE") == 0){
1444                         output_conv = w_oconv32;
1445                     }else if(strcmp(codeset, "UTF-32BE-BOM") == 0){
1446                         output_conv = w_oconv32;
1447                         output_bom_f = TRUE;
1448                     }else if(strcmp(codeset, "UTF-32LE") == 0){
1449                         output_conv = w_oconv32;
1450                         output_endian = ENDIAN_LITTLE;
1451                     }else if(strcmp(codeset, "UTF-32LE-BOM") == 0){
1452                         output_conv = w_oconv32;
1453                         output_endian = ENDIAN_LITTLE;
1454                         output_bom_f = TRUE;
1455 #endif
1456                     }
1457                     continue;
1458                 }
1459 #ifdef OVERWRITE
1460                 if (strcmp(long_option[i].name, "overwrite") == 0){
1461                     file_out_f = TRUE;
1462                     overwrite_f = TRUE;
1463                     preserve_time_f = TRUE;
1464                     continue;
1465                 }
1466                 if (strcmp(long_option[i].name, "overwrite=") == 0){
1467                     file_out_f = TRUE;
1468                     overwrite_f = TRUE;
1469                     preserve_time_f = TRUE;
1470                     backup_f = TRUE;
1471                     backup_suffix = malloc(strlen((char *) p) + 1);
1472                     strcpy(backup_suffix, (char *) p);
1473                     continue;
1474                 }
1475                 if (strcmp(long_option[i].name, "in-place") == 0){
1476                     file_out_f = TRUE;
1477                     overwrite_f = TRUE;
1478                     preserve_time_f = FALSE;
1479                     continue;
1480                 }
1481                 if (strcmp(long_option[i].name, "in-place=") == 0){
1482                     file_out_f = TRUE;
1483                     overwrite_f = TRUE;
1484                     preserve_time_f = FALSE;
1485                     backup_f = TRUE;
1486                     backup_suffix = malloc(strlen((char *) p) + 1);
1487                     strcpy(backup_suffix, (char *) p);
1488                     continue;
1489                 }
1490 #endif
1491 #ifdef INPUT_OPTION
1492                 if (strcmp(long_option[i].name, "cap-input") == 0){
1493                     cap_f = TRUE;
1494                     continue;
1495                 }
1496                 if (strcmp(long_option[i].name, "url-input") == 0){
1497                     url_f = TRUE;
1498                     continue;
1499                 }
1500 #endif
1501 #ifdef NUMCHAR_OPTION
1502                 if (strcmp(long_option[i].name, "numchar-input") == 0){
1503                     numchar_f = TRUE;
1504                     continue;
1505                 }
1506 #endif
1507 #ifdef CHECK_OPTION
1508                 if (strcmp(long_option[i].name, "no-output") == 0){
1509                     noout_f = TRUE;
1510                     continue;
1511                 }
1512                 if (strcmp(long_option[i].name, "debug") == 0){
1513                     debug_f = TRUE;
1514                     continue;
1515                 }
1516 #endif
1517                 if (strcmp(long_option[i].name, "cp932") == 0){
1518 #ifdef SHIFTJIS_CP932
1519                     cp51932_f = TRUE;
1520                     cp932inv_f = TRUE;
1521 #endif
1522 #ifdef UTF8_OUTPUT_ENABLE
1523                     ms_ucs_map_f = UCS_MAP_CP932;
1524 #endif
1525                     continue;
1526                 }
1527                 if (strcmp(long_option[i].name, "no-cp932") == 0){
1528 #ifdef SHIFTJIS_CP932
1529                     cp51932_f = FALSE;
1530                     cp932inv_f = FALSE;
1531 #endif
1532 #ifdef UTF8_OUTPUT_ENABLE
1533                     ms_ucs_map_f = UCS_MAP_ASCII;
1534 #endif
1535                     continue;
1536                 }
1537 #ifdef SHIFTJIS_CP932
1538                 if (strcmp(long_option[i].name, "cp932inv") == 0){
1539                     cp932inv_f = TRUE;
1540                     continue;
1541                 }
1542 #endif
1543
1544 #ifdef X0212_ENABLE
1545                 if (strcmp(long_option[i].name, "x0212") == 0){
1546                     x0212_f = TRUE;
1547                     continue;
1548                 }
1549 #endif
1550
1551 #ifdef EXEC_IO
1552                   if (strcmp(long_option[i].name, "exec-in") == 0){
1553                       exec_f = 1;
1554                       return;
1555                   }
1556                   if (strcmp(long_option[i].name, "exec-out") == 0){
1557                       exec_f = -1;
1558                       return;
1559                   }
1560 #endif
1561 #if defined(UTF8_OUTPUT_ENABLE) && defined(UTF8_INPUT_ENABLE)
1562                 if (strcmp(long_option[i].name, "no-cp932ext") == 0){
1563                     no_cp932ext_f = TRUE;
1564                     continue;
1565                 }
1566                 if (strcmp(long_option[i].name, "no-best-fit-chars") == 0){
1567                     no_best_fit_chars_f = TRUE;
1568                     continue;
1569                 }
1570                 if (strcmp(long_option[i].name, "fb-skip") == 0){
1571                     encode_fallback = NULL;
1572                     continue;
1573                 }
1574                 if (strcmp(long_option[i].name, "fb-html") == 0){
1575                     encode_fallback = encode_fallback_html;
1576                     continue;
1577                 }
1578                 if (strcmp(long_option[i].name, "fb-xml" ) == 0){
1579                     encode_fallback = encode_fallback_xml;
1580                     continue;
1581                 }
1582                 if (strcmp(long_option[i].name, "fb-java") == 0){
1583                     encode_fallback = encode_fallback_java;
1584                     continue;
1585                 }
1586                 if (strcmp(long_option[i].name, "fb-perl") == 0){
1587                     encode_fallback = encode_fallback_perl;
1588                     continue;
1589                 }
1590                 if (strcmp(long_option[i].name, "fb-subchar") == 0){
1591                     encode_fallback = encode_fallback_subchar;
1592                     continue;
1593                 }
1594                 if (strcmp(long_option[i].name, "fb-subchar=") == 0){
1595                     encode_fallback = encode_fallback_subchar;
1596                     unicode_subchar = 0;
1597                     if (p[0] != '0'){
1598                         /* decimal number */
1599                         for (i = 0; i < 7 && nkf_isdigit(p[i]); i++){
1600                             unicode_subchar *= 10;
1601                             unicode_subchar += hex2bin(p[i]);
1602                         }
1603                     }else if(p[1] == 'x' || p[1] == 'X'){
1604                         /* hexadecimal number */
1605                         for (i = 2; i < 8 && nkf_isxdigit(p[i]); i++){
1606                             unicode_subchar <<= 4;
1607                             unicode_subchar |= hex2bin(p[i]);
1608                         }
1609                     }else{
1610                         /* octal number */
1611                         for (i = 1; i < 8 && nkf_isoctal(p[i]); i++){
1612                             unicode_subchar *= 8;
1613                             unicode_subchar += hex2bin(p[i]);
1614                         }
1615                     }
1616                     w16e_conv(unicode_subchar, &i, &j);
1617                     unicode_subchar = i<<8 | j;
1618                     continue;
1619                 }
1620 #endif
1621 #ifdef UTF8_OUTPUT_ENABLE
1622                 if (strcmp(long_option[i].name, "ms-ucs-map") == 0){
1623                     ms_ucs_map_f = UCS_MAP_MS;
1624                     continue;
1625                 }
1626 #endif
1627 #ifdef UNICODE_NORMALIZATION
1628                 if (strcmp(long_option[i].name, "utf8mac-input") == 0){
1629                     input_f = UTF8_INPUT;
1630                     nfc_f = TRUE;
1631                     continue;
1632                 }
1633 #endif
1634                 if (strcmp(long_option[i].name, "prefix=") == 0){
1635                     if (nkf_isgraph(p[0])){
1636                         for (i = 1; nkf_isgraph(p[i]); i++){
1637                             prefix_table[p[i]] = p[0];
1638                         }
1639                     }
1640                     continue;
1641                 }
1642             }
1643             continue;
1644         case 'b':           /* buffered mode */
1645             unbuf_f = FALSE;
1646             continue;
1647         case 'u':           /* non bufferd mode */
1648             unbuf_f = TRUE;
1649             continue;
1650         case 't':           /* transparent mode */
1651             if (*cp=='1') {
1652                 /* alias of -t */
1653                 nop_f = TRUE;
1654                 *cp++;
1655             } else if (*cp=='2') {
1656                 /*
1657                  * -t with put/get
1658                  *
1659                  * nkf -t2MB hoge.bin | nkf -t2mB | diff -s - hoge.bin
1660                  *
1661                  */
1662                 nop_f = 2;
1663                 *cp++;
1664             } else
1665                 nop_f = TRUE;
1666             continue;
1667         case 'j':           /* JIS output */
1668         case 'n':
1669             output_conv = j_oconv;
1670             continue;
1671         case 'e':           /* AT&T EUC output */
1672             output_conv = e_oconv;
1673             cp932inv_f = FALSE;
1674             continue;
1675         case 's':           /* SJIS output */
1676             output_conv = s_oconv;
1677             continue;
1678         case 'l':           /* ISO8859 Latin-1 support, no conversion */
1679             iso8859_f = TRUE;  /* Only compatible with ISO-2022-JP */
1680             input_f = LATIN1_INPUT;
1681             continue;
1682         case 'i':           /* Kanji IN ESC-$-@/B */
1683             if (*cp=='@'||*cp=='B') 
1684                 kanji_intro = *cp++;
1685             continue;
1686         case 'o':           /* ASCII IN ESC-(-J/B */
1687             if (*cp=='J'||*cp=='B'||*cp=='H') 
1688                 ascii_intro = *cp++;
1689             continue;
1690         case 'h':
1691             /*  
1692                 bit:1   katakana->hiragana
1693                 bit:2   hiragana->katakana
1694             */
1695             if ('9'>= *cp && *cp>='0') 
1696                 hira_f |= (*cp++ -'0');
1697             else 
1698                 hira_f |= 1;
1699             continue;
1700         case 'r':
1701             rot_f = TRUE;
1702             continue;
1703 #if defined(MSDOS) || defined(__OS2__) 
1704         case 'T':
1705             binmode_f = FALSE;
1706             continue;
1707 #endif
1708 #ifndef PERL_XS
1709         case 'V':
1710             version();
1711             exit(1);
1712             break;
1713         case 'v':
1714             usage();
1715             exit(1);
1716             break;
1717 #endif
1718 #ifdef UTF8_OUTPUT_ENABLE
1719         case 'w':           /* UTF-8 output */
1720             if (cp[0] == '8') {
1721                 output_conv = w_oconv; cp++;
1722                 if (cp[0] == '0'){
1723                     cp++;
1724                 } else {
1725                     output_bom_f = TRUE;
1726                 }
1727             } else {
1728                 if ('1'== cp[0] && '6'==cp[1]) {
1729                     output_conv = w_oconv16; cp+=2;
1730                 } else if ('3'== cp[0] && '2'==cp[1]) {
1731                     output_conv = w_oconv32; cp+=2;
1732                 } else {
1733                     output_conv = w_oconv;
1734                     continue;
1735                 }
1736                 if (cp[0]=='L') {
1737                     cp++;
1738                     output_endian = ENDIAN_LITTLE;
1739                 } else if (cp[0] == 'B') {
1740                     cp++;
1741                 } else {
1742                     continue;
1743                 }
1744                 if (cp[0] == '0'){
1745                     cp++;
1746                 } else {
1747                     output_bom_f = TRUE;
1748                 }
1749             }
1750             continue;
1751 #endif
1752 #ifdef UTF8_INPUT_ENABLE
1753         case 'W':           /* UTF input */
1754             if (cp[0] == '8') {
1755                 cp++;
1756                 input_f = UTF8_INPUT;
1757             }else{
1758                 if ('1'== cp[0] && '6'==cp[1]) {
1759                     cp += 2;
1760                     input_f = UTF16_INPUT;
1761                     input_endian = ENDIAN_BIG;
1762                 } else if ('3'== cp[0] && '2'==cp[1]) {
1763                     cp += 2;
1764                     input_f = UTF32_INPUT;
1765                     input_endian = ENDIAN_BIG;
1766                 } else {
1767                     input_f = UTF8_INPUT;
1768                     continue;
1769                 }
1770                 if (cp[0]=='L') {
1771                     cp++;
1772                     input_endian = ENDIAN_LITTLE;
1773                 } else if (cp[0] == 'B') {
1774                     cp++;
1775                 }
1776             }
1777             continue;
1778 #endif
1779         /* Input code assumption */
1780         case 'J':   /* JIS input */
1781             input_f = JIS_INPUT;
1782             continue;
1783         case 'E':   /* AT&T EUC input */
1784             input_f = EUC_INPUT;
1785             continue;
1786         case 'S':   /* MS Kanji input */
1787             input_f = SJIS_INPUT;
1788             if (x0201_f==NO_X0201) x0201_f=TRUE;
1789             continue;
1790         case 'Z':   /* Convert X0208 alphabet to asii */
1791             /*  bit:0   Convert X0208
1792                 bit:1   Convert Kankaku to one space
1793                 bit:2   Convert Kankaku to two spaces
1794                 bit:3   Convert HTML Entity
1795             */
1796             if ('9'>= *cp && *cp>='0') 
1797                 alpha_f |= 1<<(*cp++ -'0');
1798             else 
1799                 alpha_f |= TRUE;
1800             continue;
1801         case 'x':   /* Convert X0201 kana to X0208 or X0201 Conversion */
1802             x0201_f = FALSE;    /* No X0201->X0208 conversion */
1803             /* accept  X0201
1804                     ESC-(-I     in JIS, EUC, MS Kanji
1805                     SI/SO       in JIS, EUC, MS Kanji
1806                     SSO         in EUC, JIS, not in MS Kanji
1807                     MS Kanji (0xa0-0xdf) 
1808                output  X0201
1809                     ESC-(-I     in JIS (0x20-0x5f)
1810                     SSO         in EUC (0xa0-0xdf)
1811                     0xa0-0xd    in MS Kanji (0xa0-0xdf) 
1812             */
1813             continue;
1814         case 'X':   /* Assume X0201 kana */
1815             /* Default value is NO_X0201 for EUC/MS-Kanji mix */
1816             x0201_f = TRUE;
1817             continue;
1818         case 'F':   /* prserve new lines */
1819             fold_preserve_f = TRUE;
1820         case 'f':   /* folding -f60 or -f */
1821             fold_f = TRUE;
1822             fold_len = 0;
1823             while('0'<= *cp && *cp <='9') { /* we don't use atoi here */
1824                 fold_len *= 10;
1825                 fold_len += *cp++ - '0';
1826             }
1827             if (!(0<fold_len && fold_len<BUFSIZ)) 
1828                 fold_len = DEFAULT_FOLD;
1829             if (*cp=='-') {
1830                 fold_margin = 0;
1831                 cp++;
1832                 while('0'<= *cp && *cp <='9') { /* we don't use atoi here */
1833                     fold_margin *= 10;
1834                     fold_margin += *cp++ - '0';
1835                 }
1836             }
1837             continue;
1838         case 'm':   /* MIME support */
1839             /* mime_decode_f = TRUE; */ /* this has too large side effects... */
1840             if (*cp=='B'||*cp=='Q') {
1841                 mime_decode_mode = *cp++;
1842                 mimebuf_f = FIXED_MIME;
1843             } else if (*cp=='N') {
1844                 mime_f = TRUE; cp++;
1845             } else if (*cp=='S') {
1846                 mime_f = STRICT_MIME; cp++;
1847             } else if (*cp=='0') {
1848                 mime_decode_f = FALSE;
1849                 mime_f = FALSE; cp++;
1850             }
1851             continue;
1852         case 'M':   /* MIME output */
1853             if (*cp=='B') {
1854                 mimeout_mode = 'B';
1855                 mimeout_f = FIXED_MIME; cp++;
1856             } else if (*cp=='Q') {
1857                 mimeout_mode = 'Q';
1858                 mimeout_f = FIXED_MIME; cp++;
1859             } else {
1860                 mimeout_f = TRUE;
1861             }
1862             continue;
1863         case 'B':   /* Broken JIS support */
1864             /*  bit:0   no ESC JIS
1865                 bit:1   allow any x on ESC-(-x or ESC-$-x
1866                 bit:2   reset to ascii on NL
1867             */
1868             if ('9'>= *cp && *cp>='0') 
1869                 broken_f |= 1<<(*cp++ -'0');
1870             else 
1871                 broken_f |= TRUE;
1872             continue;
1873 #ifndef PERL_XS
1874         case 'O':/* for Output file */
1875             file_out_f = TRUE;
1876             continue;
1877 #endif
1878         case 'c':/* add cr code */
1879             crmode_f = CRLF;
1880             continue;
1881         case 'd':/* delete cr code */
1882             crmode_f = NL;
1883             continue;
1884         case 'I':   /* ISO-2022-JP output */
1885             iso2022jp_f = TRUE;
1886             continue;
1887         case 'L':  /* line mode */
1888             if (*cp=='u') {         /* unix */
1889                 crmode_f = NL; cp++;
1890             } else if (*cp=='m') { /* mac */
1891                 crmode_f = CR; cp++;
1892             } else if (*cp=='w') { /* windows */
1893                 crmode_f = CRLF; cp++;
1894             } else if (*cp=='0') { /* no conversion  */
1895                 crmode_f = 0; cp++;
1896             }
1897             continue;
1898         case 'g':
1899 #ifndef PERL_XS
1900             guess_f = TRUE;
1901 #endif
1902             continue;
1903         case ' ':    
1904         /* module muliple options in a string are allowed for Perl moudle  */
1905             while(*cp && *cp++!='-');
1906             continue;
1907         default:
1908             /* bogus option but ignored */
1909             continue;
1910         }
1911     }
1912 }
1913
1914 struct input_code * find_inputcode_byfunc(nkf_char (*iconv_func)(nkf_char c2,nkf_char c1,nkf_char c0))
1915 {
1916     if (iconv_func){
1917         struct input_code *p = input_code_list;
1918         while (p->name){
1919             if (iconv_func == p->iconv_func){
1920                 return p;
1921             }
1922             p++;
1923         }
1924     }
1925     return 0;
1926 }
1927
1928 void set_iconv(nkf_char f, nkf_char (*iconv_func)(nkf_char c2,nkf_char c1,nkf_char c0))
1929 {
1930 #ifdef INPUT_CODE_FIX
1931     if (f || !input_f)
1932 #endif
1933         if (estab_f != f){
1934             estab_f = f;
1935         }
1936
1937     if (iconv_func
1938 #ifdef INPUT_CODE_FIX
1939         && (f == -TRUE || !input_f) /* -TRUE means "FORCE" */
1940 #endif
1941         ){
1942         iconv = iconv_func;
1943     }
1944 #ifdef CHECK_OPTION
1945     if (estab_f && iconv_for_check != iconv){
1946         struct input_code *p = find_inputcode_byfunc(iconv);
1947         if (p){
1948             set_input_codename(p->name);
1949             debug(input_codename);
1950         }
1951         iconv_for_check = iconv;
1952     }
1953 #endif
1954 }
1955
1956 #define SCORE_L2       (1)                   /* \e$BBh\e(B2\e$B?e=`4A;z\e(B */
1957 #define SCORE_KANA     (SCORE_L2 << 1)       /* \e$B$$$o$f$kH>3Q%+%J\e(B */
1958 #define SCORE_DEPEND   (SCORE_KANA << 1)     /* \e$B5!<o0MB8J8;z\e(B */
1959 #ifdef SHIFTJIS_CP932
1960 #define SCORE_CP932    (SCORE_DEPEND << 1)   /* CP932 \e$B$K$h$kFI$_49$(\e(B */
1961 #define SCORE_NO_EXIST (SCORE_CP932 << 1)    /* \e$BB8:_$7$J$$J8;z\e(B */
1962 #else
1963 #define SCORE_NO_EXIST (SCORE_DEPEND << 1)   /* \e$BB8:_$7$J$$J8;z\e(B */
1964 #endif
1965 #define SCORE_iMIME    (SCORE_NO_EXIST << 1) /* MIME \e$B$K$h$k;XDj\e(B */
1966 #define SCORE_ERROR    (SCORE_iMIME << 1) /* \e$B%(%i!<\e(B */
1967
1968 #define SCORE_INIT (SCORE_iMIME)
1969
1970 const nkf_char score_table_A0[] = {
1971     0, 0, 0, 0,
1972     0, 0, 0, 0,
1973     0, SCORE_DEPEND, SCORE_DEPEND, SCORE_DEPEND,
1974     SCORE_DEPEND, SCORE_DEPEND, SCORE_DEPEND, SCORE_NO_EXIST,
1975 };
1976
1977 const nkf_char score_table_F0[] = {
1978     SCORE_L2, SCORE_L2, SCORE_L2, SCORE_L2,
1979     SCORE_L2, SCORE_DEPEND, SCORE_NO_EXIST, SCORE_NO_EXIST,
1980     SCORE_DEPEND, SCORE_DEPEND, SCORE_DEPEND, SCORE_DEPEND,
1981     SCORE_DEPEND, SCORE_NO_EXIST, SCORE_NO_EXIST, SCORE_ERROR,
1982 };
1983
1984 void set_code_score(struct input_code *ptr, nkf_char score)
1985 {
1986     if (ptr){
1987         ptr->score |= score;
1988     }
1989 }
1990
1991 void clr_code_score(struct input_code *ptr, nkf_char score)
1992 {
1993     if (ptr){
1994         ptr->score &= ~score;
1995     }
1996 }
1997
1998 void code_score(struct input_code *ptr)
1999 {
2000     nkf_char c2 = ptr->buf[0];
2001 #ifdef UTF8_OUTPUT_ENABLE
2002     nkf_char c1 = ptr->buf[1];
2003 #endif
2004     if (c2 < 0){
2005         set_code_score(ptr, SCORE_ERROR);
2006     }else if (c2 == SSO){
2007         set_code_score(ptr, SCORE_KANA);
2008 #ifdef UTF8_OUTPUT_ENABLE
2009     }else if (!e2w_conv(c2, c1)){
2010         set_code_score(ptr, SCORE_NO_EXIST);
2011 #endif
2012     }else if ((c2 & 0x70) == 0x20){
2013         set_code_score(ptr, score_table_A0[c2 & 0x0f]);
2014     }else if ((c2 & 0x70) == 0x70){
2015         set_code_score(ptr, score_table_F0[c2 & 0x0f]);
2016     }else if ((c2 & 0x70) >= 0x50){
2017         set_code_score(ptr, SCORE_L2);
2018     }
2019 }
2020
2021 void status_disable(struct input_code *ptr)
2022 {
2023     ptr->stat = -1;
2024     ptr->buf[0] = -1;
2025     code_score(ptr);
2026     if (iconv == ptr->iconv_func) set_iconv(FALSE, 0);
2027 }
2028
2029 void status_push_ch(struct input_code *ptr, nkf_char c)
2030 {
2031     ptr->buf[ptr->index++] = c;
2032 }
2033
2034 void status_clear(struct input_code *ptr)
2035 {
2036     ptr->stat = 0;
2037     ptr->index = 0;
2038 }
2039
2040 void status_reset(struct input_code *ptr)
2041 {
2042     status_clear(ptr);
2043     ptr->score = SCORE_INIT;
2044 }
2045
2046 void status_reinit(struct input_code *ptr)
2047 {
2048     status_reset(ptr);
2049     ptr->_file_stat = 0;
2050 }
2051
2052 void status_check(struct input_code *ptr, nkf_char c)
2053 {
2054     if (c <= DEL && estab_f){
2055         status_reset(ptr);
2056     }
2057 }
2058
2059 void s_status(struct input_code *ptr, nkf_char c)
2060 {
2061     switch(ptr->stat){
2062       case -1:
2063           status_check(ptr, c);
2064           break;
2065       case 0:
2066           if (c <= DEL){
2067               break;
2068 #ifdef NUMCHAR_OPTION
2069           }else if (is_unicode_capsule(c)){
2070               break;
2071 #endif
2072           }else if (0xa1 <= c && c <= 0xdf){
2073               status_push_ch(ptr, SSO);
2074               status_push_ch(ptr, c);
2075               code_score(ptr);
2076               status_clear(ptr);
2077           }else if ((0x81 <= c && c < 0xa0) || (0xe0 <= c && c <= 0xef)){
2078               ptr->stat = 1;
2079               status_push_ch(ptr, c);
2080 #ifdef SHIFTJIS_CP932
2081           }else if (cp51932_f
2082                     && is_ibmext_in_sjis(c)){
2083               ptr->stat = 2;
2084               status_push_ch(ptr, c);
2085 #endif /* SHIFTJIS_CP932 */
2086 #ifdef X0212_ENABLE
2087           }else if (x0212_f && 0xf0 <= c && c <= 0xfc){
2088               ptr->stat = 1;
2089               status_push_ch(ptr, c);
2090 #endif /* X0212_ENABLE */
2091           }else{
2092               status_disable(ptr);
2093           }
2094           break;
2095       case 1:
2096           if ((0x40 <= c && c <= 0x7e) || (0x80 <= c && c <= 0xfc)){
2097               status_push_ch(ptr, c);
2098               s2e_conv(ptr->buf[0], ptr->buf[1], &ptr->buf[0], &ptr->buf[1]);
2099               code_score(ptr);
2100               status_clear(ptr);
2101           }else{
2102               status_disable(ptr);
2103           }
2104           break;
2105       case 2:
2106 #ifdef SHIFTJIS_CP932
2107           if ((0x40 <= c && c <= 0x7e) || (0x80 <= c && c <= 0xfc)){
2108               status_push_ch(ptr, c);
2109               if (s2e_conv(ptr->buf[0], ptr->buf[1], &ptr->buf[0], &ptr->buf[1]) == 0){
2110                   set_code_score(ptr, SCORE_CP932);
2111                   status_clear(ptr);
2112                   break;
2113               }
2114           }
2115 #endif /* SHIFTJIS_CP932 */
2116 #ifndef X0212_ENABLE
2117           status_disable(ptr);
2118 #endif
2119           break;
2120     }
2121 }
2122
2123 void e_status(struct input_code *ptr, nkf_char c)
2124 {
2125     switch (ptr->stat){
2126       case -1:
2127           status_check(ptr, c);
2128           break;
2129       case 0:
2130           if (c <= DEL){
2131               break;
2132 #ifdef NUMCHAR_OPTION
2133           }else if (is_unicode_capsule(c)){
2134               break;
2135 #endif
2136           }else if (SSO == c || (0xa1 <= c && c <= 0xfe)){
2137               ptr->stat = 1;
2138               status_push_ch(ptr, c);
2139 #ifdef X0212_ENABLE
2140           }else if (0x8f == c){
2141               ptr->stat = 2;
2142               status_push_ch(ptr, c);
2143 #endif /* X0212_ENABLE */
2144           }else{
2145               status_disable(ptr);
2146           }
2147           break;
2148       case 1:
2149           if (0xa1 <= c && c <= 0xfe){
2150               status_push_ch(ptr, c);
2151               code_score(ptr);
2152               status_clear(ptr);
2153           }else{
2154               status_disable(ptr);
2155           }
2156           break;
2157 #ifdef X0212_ENABLE
2158       case 2:
2159           if (0xa1 <= c && c <= 0xfe){
2160               ptr->stat = 1;
2161               status_push_ch(ptr, c);
2162           }else{
2163               status_disable(ptr);
2164           }
2165 #endif /* X0212_ENABLE */
2166     }
2167 }
2168
2169 #ifdef UTF8_INPUT_ENABLE
2170 void w_status(struct input_code *ptr, nkf_char c)
2171 {
2172     switch (ptr->stat){
2173       case -1:
2174           status_check(ptr, c);
2175           break;
2176       case 0:
2177           if (c <= DEL){
2178               break;
2179 #ifdef NUMCHAR_OPTION
2180           }else if (is_unicode_capsule(c)){
2181               break;
2182 #endif
2183           }else if (0xc0 <= c && c <= 0xdf){
2184               ptr->stat = 1;
2185               status_push_ch(ptr, c);
2186           }else if (0xe0 <= c && c <= 0xef){
2187               ptr->stat = 2;
2188               status_push_ch(ptr, c);
2189           }else if (0xf0 <= c && c <= 0xf4){
2190               ptr->stat = 3;
2191               status_push_ch(ptr, c);
2192           }else{
2193               status_disable(ptr);
2194           }
2195           break;
2196       case 1:
2197       case 2:
2198           if (0x80 <= c && c <= 0xbf){
2199               status_push_ch(ptr, c);
2200               if (ptr->index > ptr->stat){
2201                   int bom = (ptr->buf[0] == 0xef && ptr->buf[1] == 0xbb
2202                              && ptr->buf[2] == 0xbf);
2203                   w2e_conv(ptr->buf[0], ptr->buf[1], ptr->buf[2],
2204                            &ptr->buf[0], &ptr->buf[1]);
2205                   if (!bom){
2206                       code_score(ptr);
2207                   }
2208                   status_clear(ptr);
2209               }
2210           }else{
2211               status_disable(ptr);
2212           }
2213           break;
2214       case 3:
2215         if (0x80 <= c && c <= 0xbf){
2216             if (ptr->index < ptr->stat){
2217                 status_push_ch(ptr, c);
2218             } else {
2219                 status_clear(ptr);
2220             }
2221           }else{
2222               status_disable(ptr);
2223           }
2224           break;
2225     }
2226 }
2227 #endif
2228
2229 void code_status(nkf_char c)
2230 {
2231     int action_flag = 1;
2232     struct input_code *result = 0;
2233     struct input_code *p = input_code_list;
2234     while (p->name){
2235         if (!p->status_func) {
2236             ++p;
2237             continue;
2238         }
2239         if (!p->status_func)
2240             continue;
2241         (p->status_func)(p, c);
2242         if (p->stat > 0){
2243             action_flag = 0;
2244         }else if(p->stat == 0){
2245             if (result){
2246                 action_flag = 0;
2247             }else{
2248                 result = p;
2249             }
2250         }
2251         ++p;
2252     }
2253
2254     if (action_flag){
2255         if (result && !estab_f){
2256             set_iconv(TRUE, result->iconv_func);
2257         }else if (c <= DEL){
2258             struct input_code *ptr = input_code_list;
2259             while (ptr->name){
2260                 status_reset(ptr);
2261                 ++ptr;
2262             }
2263         }
2264     }
2265 }
2266
2267 #ifndef WIN32DLL
2268 nkf_char std_getc(FILE *f)
2269 {
2270     if (std_gc_ndx){
2271         return std_gc_buf[--std_gc_ndx];
2272     }
2273     return getc(f);
2274 }
2275 #endif /*WIN32DLL*/
2276
2277 nkf_char std_ungetc(nkf_char c, FILE *f)
2278 {
2279     if (std_gc_ndx == STD_GC_BUFSIZE){
2280         return EOF;
2281     }
2282     std_gc_buf[std_gc_ndx++] = c;
2283     return c;
2284 }
2285
2286 #ifndef WIN32DLL
2287 void std_putc(nkf_char c)
2288 {
2289     if(c!=EOF)
2290       putchar(c);
2291 }
2292 #endif /*WIN32DLL*/
2293
2294 #if !defined(PERL_XS) && !defined(WIN32DLL)
2295 nkf_char noconvert(FILE *f)
2296 {
2297     nkf_char    c;
2298
2299     if (nop_f == 2)
2300         module_connection();
2301     while ((c = (*i_getc)(f)) != EOF)
2302       (*o_putc)(c);
2303     (*o_putc)(EOF);
2304     return 1;
2305 }
2306 #endif
2307
2308 void module_connection(void)
2309 {
2310     oconv = output_conv; 
2311     o_putc = std_putc;
2312
2313     /* replace continucation module, from output side */
2314
2315     /* output redicrection */
2316 #ifdef CHECK_OPTION
2317     if (noout_f || guess_f){
2318         o_putc = no_putc;
2319     }
2320 #endif
2321     if (mimeout_f) {
2322         o_mputc = o_putc;
2323         o_putc = mime_putc;
2324         if (mimeout_f == TRUE) {
2325             o_base64conv = oconv; oconv = base64_conv;
2326         }
2327         /* base64_count = 0; */
2328     }
2329
2330     if (crmode_f) {
2331         o_crconv = oconv; oconv = cr_conv;
2332     }
2333     if (rot_f) {
2334         o_rot_conv = oconv; oconv = rot_conv;
2335     }
2336     if (iso2022jp_f) {
2337         o_iso2022jp_check_conv = oconv; oconv = iso2022jp_check_conv;
2338     }
2339     if (hira_f) {
2340         o_hira_conv = oconv; oconv = hira_conv;
2341     }
2342     if (fold_f) {
2343         o_fconv = oconv; oconv = fold_conv;
2344         f_line = 0;
2345     }
2346     if (alpha_f || x0201_f) {
2347         o_zconv = oconv; oconv = z_conv;
2348     }
2349
2350     i_getc = std_getc;
2351     i_ungetc = std_ungetc;
2352     /* input redicrection */
2353 #ifdef INPUT_OPTION
2354     if (cap_f){
2355         i_cgetc = i_getc; i_getc = cap_getc;
2356         i_cungetc = i_ungetc; i_ungetc= cap_ungetc;
2357     }
2358     if (url_f){
2359         i_ugetc = i_getc; i_getc = url_getc;
2360         i_uungetc = i_ungetc; i_ungetc= url_ungetc;
2361     }
2362 #endif
2363 #ifdef NUMCHAR_OPTION
2364     if (numchar_f){
2365         i_ngetc = i_getc; i_getc = numchar_getc;
2366         i_nungetc = i_ungetc; i_ungetc= numchar_ungetc;
2367     }
2368 #endif
2369 #ifdef UNICODE_NORMALIZATION
2370     if (nfc_f && input_f == UTF8_INPUT){
2371         i_nfc_getc = i_getc; i_getc = nfc_getc;
2372         i_nfc_ungetc = i_ungetc; i_ungetc= nfc_ungetc;
2373     }
2374 #endif
2375     if (mime_f && mimebuf_f==FIXED_MIME) {
2376         i_mgetc = i_getc; i_getc = mime_getc;
2377         i_mungetc = i_ungetc; i_ungetc = mime_ungetc;
2378     }
2379     if (broken_f & 1) {
2380         i_bgetc = i_getc; i_getc = broken_getc;
2381         i_bungetc = i_ungetc; i_ungetc = broken_ungetc;
2382     }
2383     if (input_f == JIS_INPUT || input_f == EUC_INPUT || input_f == LATIN1_INPUT) {
2384         set_iconv(-TRUE, e_iconv);
2385     } else if (input_f == SJIS_INPUT) {
2386         set_iconv(-TRUE, s_iconv);
2387 #ifdef UTF8_INPUT_ENABLE
2388     } else if (input_f == UTF8_INPUT) {
2389         set_iconv(-TRUE, w_iconv);
2390     } else if (input_f == UTF16_INPUT) {
2391         set_iconv(-TRUE, w_iconv16);
2392     } else if (input_f == UTF32_INPUT) {
2393         set_iconv(-TRUE, w_iconv32);
2394 #endif
2395     } else {
2396         set_iconv(FALSE, e_iconv);
2397     }
2398
2399     {
2400         struct input_code *p = input_code_list;
2401         while (p->name){
2402             status_reinit(p++);
2403         }
2404     }
2405 }
2406
2407 /*
2408  * Check and Ignore BOM
2409  */
2410 void check_bom(FILE *f)
2411 {
2412     int c2;
2413     switch(c2 = (*i_getc)(f)){
2414     case 0x00:
2415         if((c2 = (*i_getc)(f)) == 0x00){
2416             if((c2 = (*i_getc)(f)) == 0xFE){
2417                 if((c2 = (*i_getc)(f)) == 0xFF){
2418                     if(!input_f){
2419                         set_iconv(TRUE, w_iconv32);
2420                     }
2421                     if (iconv == w_iconv32) {
2422                         input_endian = ENDIAN_BIG;
2423                         return;
2424                     }
2425                     (*i_ungetc)(0xFF,f);
2426                 }else (*i_ungetc)(c2,f);
2427                 (*i_ungetc)(0xFE,f);
2428             }else if(c2 == 0xFF){
2429                 if((c2 = (*i_getc)(f)) == 0xFE){
2430                     if(!input_f){
2431                         set_iconv(TRUE, w_iconv32);
2432                     }
2433                     if (iconv == w_iconv32) {
2434                         input_endian = ENDIAN_2143;
2435                         return;
2436                     }
2437                     (*i_ungetc)(0xFF,f);
2438                 }else (*i_ungetc)(c2,f);
2439                 (*i_ungetc)(0xFF,f);
2440             }else (*i_ungetc)(c2,f);
2441             (*i_ungetc)(0x00,f);
2442         }else (*i_ungetc)(c2,f);
2443         (*i_ungetc)(0x00,f);
2444         break;
2445     case 0xEF:
2446         if((c2 = (*i_getc)(f)) == 0xBB){
2447             if((c2 = (*i_getc)(f)) == 0xBF){
2448                 if(!input_f){
2449                     set_iconv(TRUE, w_iconv);
2450                 }
2451                 if (iconv == w_iconv) {
2452                     return;
2453                 }
2454                 (*i_ungetc)(0xBF,f);
2455             }else (*i_ungetc)(c2,f);
2456             (*i_ungetc)(0xBB,f);
2457         }else (*i_ungetc)(c2,f);
2458         (*i_ungetc)(0xEF,f);
2459         break;
2460     case 0xFE:
2461         if((c2 = (*i_getc)(f)) == 0xFF){
2462             if((c2 = (*i_getc)(f)) == 0x00){
2463                 if((c2 = (*i_getc)(f)) == 0x00){
2464                     if(!input_f){
2465                         set_iconv(TRUE, w_iconv32);
2466                     }
2467                     if (iconv == w_iconv32) {
2468                         input_endian = ENDIAN_3412;
2469                         return;
2470                     }
2471                     (*i_ungetc)(0x00,f);
2472                 }else (*i_ungetc)(c2,f);
2473                 (*i_ungetc)(0x00,f);
2474             }else (*i_ungetc)(c2,f);
2475             if(!input_f){
2476                 set_iconv(TRUE, w_iconv16);
2477             }
2478             if (iconv == w_iconv16) {
2479                 input_endian = ENDIAN_BIG;
2480                 return;
2481             }
2482             (*i_ungetc)(0xFF,f);
2483         }else (*i_ungetc)(c2,f);
2484         (*i_ungetc)(0xFE,f);
2485         break;
2486     case 0xFF:
2487         if((c2 = (*i_getc)(f)) == 0xFE){
2488             if((c2 = (*i_getc)(f)) == 0x00){
2489                 if((c2 = (*i_getc)(f)) == 0x00){
2490                     if(!input_f){
2491                         set_iconv(TRUE, w_iconv32);
2492                     }
2493                     if (iconv == w_iconv32) {
2494                         input_endian = ENDIAN_LITTLE;
2495                         return;
2496                     }
2497                     (*i_ungetc)(0x00,f);
2498                 }else (*i_ungetc)(c2,f);
2499                 (*i_ungetc)(0x00,f);
2500             }else (*i_ungetc)(c2,f);
2501             if(!input_f){
2502                 set_iconv(TRUE, w_iconv16);
2503             }
2504             if (iconv == w_iconv16) {
2505                 input_endian = ENDIAN_LITTLE;
2506                 return;
2507             }
2508             (*i_ungetc)(0xFE,f);
2509         }else (*i_ungetc)(c2,f);
2510         (*i_ungetc)(0xFF,f);
2511         break;
2512     default:
2513         (*i_ungetc)(c2,f);
2514         break;
2515     }
2516 }
2517
2518 /*
2519    Conversion main loop. Code detection only. 
2520  */
2521
2522 nkf_char kanji_convert(FILE *f)
2523 {
2524     nkf_char    c3, c2=0, c1, c0=0;
2525     int is_8bit = FALSE;
2526
2527     if(input_f == SJIS_INPUT || input_f == EUC_INPUT
2528 #ifdef UTF8_INPUT_ENABLE
2529        || input_f == UTF8_INPUT || input_f == UTF16_INPUT
2530 #endif
2531       ){
2532         is_8bit = TRUE;
2533     }
2534
2535     input_mode = ASCII;
2536     output_mode = ASCII;
2537     shift_mode = FALSE;
2538
2539 #define NEXT continue      /* no output, get next */
2540 #define SEND ;             /* output c1 and c2, get next */
2541 #define LAST break         /* end of loop, go closing  */
2542
2543     module_connection();
2544     check_bom(f);
2545
2546     while ((c1 = (*i_getc)(f)) != EOF) {
2547 #ifdef INPUT_CODE_FIX
2548         if (!input_f)
2549 #endif
2550             code_status(c1);
2551         if (c2) {
2552             /* second byte */
2553             if (c2 > ((input_f == JIS_INPUT && ms_ucs_map_f) ? 0x92 : DEL)) {
2554                 /* in case of 8th bit is on */
2555                 if (!estab_f&&!mime_decode_mode) {
2556                     /* in case of not established yet */
2557                     /* It is still ambiguious */
2558                     if (h_conv(f, c2, c1)==EOF) 
2559                         LAST;
2560                     else 
2561                         c2 = 0;
2562                     NEXT;
2563                 } else {
2564                     /* in case of already established */
2565                     if (c1 < AT) {
2566                         /* ignore bogus code and not CP5022x UCD */
2567                         c2 = 0;
2568                         NEXT;
2569                     } else {
2570                         SEND;
2571                     }
2572                 }
2573             } else
2574                 /* second byte, 7 bit code */
2575                 /* it might be kanji shitfted */
2576                 if ((c1 == DEL) || (c1 <= SPACE)) {
2577                     /* ignore bogus first code */
2578                     c2 = 0;
2579                     NEXT;
2580                 } else
2581                     SEND;
2582         } else {
2583             /* first byte */
2584 #ifdef UTF8_INPUT_ENABLE
2585             if (iconv == w_iconv16) {
2586                 if (input_endian == ENDIAN_BIG) {
2587                     c2 = c1;
2588                     if ((c1 = (*i_getc)(f)) != EOF) {
2589                         if (0xD8 <= c2 && c2 <= 0xDB) {
2590                             if ((c0 = (*i_getc)(f)) != EOF) {
2591                                 c0 <<= 8;
2592                                 if ((c3 = (*i_getc)(f)) != EOF) {
2593                                     c0 |= c3;
2594                                 } else c2 = EOF;
2595                             } else c2 = EOF;
2596                         }
2597                     } else c2 = EOF;
2598                 } else {
2599                     if ((c2 = (*i_getc)(f)) != EOF) {
2600                         if (0xD8 <= c2 && c2 <= 0xDB) {
2601                             if ((c3 = (*i_getc)(f)) != EOF) {
2602                                 if ((c0 = (*i_getc)(f)) != EOF) {
2603                                     c0 <<= 8;
2604                                     c0 |= c3;
2605                                 } else c2 = EOF;
2606                             } else c2 = EOF;
2607                         }
2608                     } else c2 = EOF;
2609                 }
2610                 SEND;
2611             } else if(iconv == w_iconv32){
2612                 int c3 = c1;
2613                 if((c2 = (*i_getc)(f)) != EOF &&
2614                    (c1 = (*i_getc)(f)) != EOF &&
2615                    (c0 = (*i_getc)(f)) != EOF){
2616                     switch(input_endian){
2617                     case ENDIAN_BIG:
2618                         c1 = (c2&0xFF)<<16 | (c1&0xFF)<<8 | (c0&0xFF);
2619                         break;
2620                     case ENDIAN_LITTLE:
2621                         c1 = (c3&0xFF) | (c2&0xFF)<<8 | (c1&0xFF)<<16;
2622                         break;
2623                     case ENDIAN_2143:
2624                         c1 = (c3&0xFF)<<16 | (c1&0xFF) | (c0&0xFF)<<8;
2625                         break;
2626                     case ENDIAN_3412:
2627                         c1 = (c3&0xFF)<<8 | (c2&0xFF) | (c0&0xFF)<<16;
2628                         break;
2629                     }
2630                     c2 = 0;
2631                 }else{
2632                     c2 = EOF;
2633                 }
2634                 SEND;
2635             } else
2636 #endif
2637 #ifdef NUMCHAR_OPTION
2638             if (is_unicode_capsule(c1)){
2639                 SEND;
2640             } else
2641 #endif
2642             if (c1 > ((input_f == JIS_INPUT && ms_ucs_map_f) ? 0x92 : DEL)) {
2643                 /* 8 bit code */
2644                 if (!estab_f && !iso8859_f) {
2645                     /* not established yet */
2646                     c2 = c1;
2647                     NEXT;
2648                 } else { /* estab_f==TRUE */
2649                     if (iso8859_f) {
2650                         c2 = ISO8859_1;
2651                         c1 &= 0x7f;
2652                         SEND;
2653                     } else if (SSP<=c1 && c1<0xe0 && iconv == s_iconv) {
2654                         /* SJIS X0201 Case... */
2655                         if(iso2022jp_f && x0201_f==NO_X0201) {
2656                             (*oconv)(GETA1, GETA2);
2657                             NEXT;
2658                         } else {
2659                             c2 = X0201;
2660                             c1 &= 0x7f;
2661                             SEND;
2662                         }
2663                     } else if (c1==SSO && iconv != s_iconv) {
2664                         /* EUC X0201 Case */
2665                         c1 = (*i_getc)(f);  /* skip SSO */
2666                         code_status(c1);
2667                         if (SSP<=c1 && c1<0xe0) {
2668                             if(iso2022jp_f &&  x0201_f==NO_X0201) {
2669                                 (*oconv)(GETA1, GETA2);
2670                                 NEXT;
2671                             } else {
2672                                 c2 = X0201;
2673                                 c1 &= 0x7f;
2674                                 SEND;
2675                             }
2676                         } else  { /* bogus code, skip SSO and one byte */
2677                             NEXT;
2678                         }
2679                     } else {
2680                        /* already established */
2681                        c2 = c1;
2682                        NEXT;
2683                     }
2684                 }
2685             } else if ((c1 > SPACE) && (c1 != DEL)) {
2686                 /* in case of Roman characters */
2687                 if (shift_mode) { 
2688                     /* output 1 shifted byte */
2689                     if (iso8859_f) {
2690                         c2 = ISO8859_1;
2691                         SEND;
2692                     } else if (SPACE<=c1 && c1<(0xe0&0x7f) ){
2693                       /* output 1 shifted byte */
2694                         if(iso2022jp_f && x0201_f==NO_X0201) {
2695                             (*oconv)(GETA1, GETA2);
2696                             NEXT;
2697                         } else {
2698                             c2 = X0201;
2699                             SEND;
2700                         }
2701                     } else {
2702                         /* look like bogus code */
2703                         NEXT;
2704                     }
2705                 } else if (input_mode == X0208 || input_mode == X0212 ||
2706                            input_mode == X0213_1 || input_mode == X0213_2) {
2707                     /* in case of Kanji shifted */
2708                     c2 = c1;
2709                     NEXT;
2710                 } else if (c1 == '=' && mime_f && !mime_decode_mode ) {
2711                     /* Check MIME code */
2712                     if ((c1 = (*i_getc)(f)) == EOF) {
2713                         (*oconv)(0, '=');
2714                         LAST;
2715                     } else if (c1 == '?') {
2716                         /* =? is mime conversion start sequence */
2717                         if(mime_f == STRICT_MIME) {
2718                             /* check in real detail */
2719                             if (mime_begin_strict(f) == EOF) 
2720                                 LAST;
2721                             else
2722                                 NEXT;
2723                         } else if (mime_begin(f) == EOF) 
2724                             LAST;
2725                         else
2726                             NEXT;
2727                     } else {
2728                         (*oconv)(0, '=');
2729                         (*i_ungetc)(c1,f);
2730                         NEXT;
2731                     }
2732                 } else {
2733                     /* normal ASCII code */ 
2734                     SEND;
2735                 }
2736             } else if (c1 == SI && (!is_8bit || mime_decode_mode)) {\r
2737                 shift_mode = FALSE; 
2738                 NEXT;
2739             } else if (c1 == SO && (!is_8bit || mime_decode_mode)) {\r
2740                 shift_mode = TRUE; 
2741                 NEXT;
2742             } else if (c1 == ESC && (!is_8bit || mime_decode_mode)) {\r
2743                 if ((c1 = (*i_getc)(f)) == EOF) {
2744                     /*  (*oconv)(0, ESC); don't send bogus code */
2745                     LAST;
2746                 } else if (c1 == '$') {
2747                     if ((c1 = (*i_getc)(f)) == EOF) {
2748                         /*
2749                         (*oconv)(0, ESC); don't send bogus code 
2750                         (*oconv)(0, '$'); */
2751                         LAST;
2752                     } else if (c1 == '@'|| c1 == 'B') {
2753                         /* This is kanji introduction */
2754                         input_mode = X0208;
2755                         shift_mode = FALSE;
2756                         set_input_codename("ISO-2022-JP");
2757 #ifdef CHECK_OPTION
2758                         debug(input_codename);
2759 #endif
2760                         NEXT;
2761                     } else if (c1 == '(') {
2762                         if ((c1 = (*i_getc)(f)) == EOF) {
2763                             /* don't send bogus code 
2764                             (*oconv)(0, ESC);
2765                             (*oconv)(0, '$');
2766                             (*oconv)(0, '(');
2767                                 */
2768                             LAST;
2769                         } else if (c1 == '@'|| c1 == 'B') {
2770                             /* This is kanji introduction */
2771                             input_mode = X0208;
2772                             shift_mode = FALSE;
2773                             NEXT;
2774 #ifdef X0212_ENABLE
2775                         } else if (c1 == 'D'){
2776                             input_mode = X0212;
2777                             shift_mode = FALSE;
2778                             NEXT;
2779 #endif /* X0212_ENABLE */
2780                         } else if (c1 == (X0213_1&0x7F)){
2781                             input_mode = X0213_1;
2782                             shift_mode = FALSE;
2783                             NEXT;
2784                         } else if (c1 == (X0213_2&0x7F)){
2785                             input_mode = X0213_2;
2786                             shift_mode = FALSE;
2787                             NEXT;
2788                         } else {
2789                             /* could be some special code */
2790                             (*oconv)(0, ESC);
2791                             (*oconv)(0, '$');
2792                             (*oconv)(0, '(');
2793                             (*oconv)(0, c1);
2794                             NEXT;
2795                         }
2796                     } else if (broken_f&0x2) {
2797                         /* accept any ESC-(-x as broken code ... */
2798                         input_mode = X0208;
2799                         shift_mode = FALSE;
2800                         NEXT;
2801                     } else {
2802                         (*oconv)(0, ESC);
2803                         (*oconv)(0, '$');
2804                         (*oconv)(0, c1);
2805                         NEXT;
2806                     }
2807                 } else if (c1 == '(') {
2808                     if ((c1 = (*i_getc)(f)) == EOF) {
2809                         /* don't send bogus code 
2810                         (*oconv)(0, ESC);
2811                         (*oconv)(0, '('); */
2812                         LAST;
2813                     } else {
2814                         if (c1 == 'I') {
2815                             /* This is X0201 kana introduction */
2816                             input_mode = X0201; shift_mode = X0201;
2817                             NEXT;
2818                         } else if (c1 == 'B' || c1 == 'J' || c1 == 'H') {
2819                             /* This is X0208 kanji introduction */
2820                             input_mode = ASCII; shift_mode = FALSE;
2821                             NEXT;
2822                         } else if (broken_f&0x2) {
2823                             input_mode = ASCII; shift_mode = FALSE;
2824                             NEXT;
2825                         } else {
2826                             (*oconv)(0, ESC);
2827                             (*oconv)(0, '(');
2828                             /* maintain various input_mode here */
2829                             SEND;
2830                         }
2831                     }
2832                } else if ( c1 == 'N' || c1 == 'n' ){
2833                    /* SS2 */
2834                    c3 = (*i_getc)(f);  /* skip SS2 */
2835                    if ( (SPACE<=c3 && c3 < 0x60) || (0xa0<=c3 && c3 < 0xe0)){
2836                        c1 = c3;
2837                        c2 = X0201;
2838                        SEND;
2839                    }else{
2840                        (*i_ungetc)(c3, f);
2841                        /* lonely ESC  */
2842                        (*oconv)(0, ESC);
2843                        SEND;
2844                    }
2845                 } else {
2846                     /* lonely ESC  */
2847                     (*oconv)(0, ESC);
2848                     SEND;
2849                 }
2850             } else if (c1 == ESC && iconv == s_iconv) {
2851                 /* ESC in Shift_JIS */
2852                 if ((c1 = (*i_getc)(f)) == EOF) {
2853                     /*  (*oconv)(0, ESC); don't send bogus code */
2854                     LAST;
2855                 } else if (c1 == '$') {
2856                     /* J-PHONE emoji */
2857                     if ((c1 = (*i_getc)(f)) == EOF) {
2858                         /*
2859                            (*oconv)(0, ESC); don't send bogus code 
2860                            (*oconv)(0, '$'); */
2861                         LAST;
2862                     } else {
2863                         if (('E' <= c1 && c1 <= 'G') ||
2864                             ('O' <= c1 && c1 <= 'Q')) {
2865                             /*
2866                                NUM : 0 1 2 3 4 5
2867                                BYTE: G E F O P Q
2868                                C%7 : 1 6 0 2 3 4
2869                                C%7 : 0 1 2 3 4 5 6
2870                                NUM : 2 0 3 4 5 X 1
2871                              */
2872                             static const int jphone_emoji_first_table[7] = {2, 0, 3, 4, 5, 0, 1};
2873                             c0 = (jphone_emoji_first_table[c1 % 7] << 8) - SPACE + 0xE000 + CLASS_UNICODE;
2874                             while ((c1 = (*i_getc)(f)) != EOF) {
2875                                 if (SPACE <= c1 && c1 <= 'z') {
2876                                     (*oconv)(0, c1 + c0);
2877                                 } else break; /* c1 == SO */
2878                             }
2879                         }
2880                     }
2881                     if (c1 == EOF) LAST;
2882                     NEXT;
2883                 } else {
2884                     /* lonely ESC  */
2885                     (*oconv)(0, ESC);
2886                     SEND;
2887                 }
2888             } else if (c1 == NL || c1 == CR) {
2889                 if (broken_f&4) {
2890                     input_mode = ASCII; set_iconv(FALSE, 0);
2891                     SEND;
2892                 } else if (mime_decode_f && !mime_decode_mode){
2893                     if (c1 == NL) {
2894                         if ((c1=(*i_getc)(f))!=EOF && c1 == SPACE) {
2895                             i_ungetc(SPACE,f);
2896                             continue;
2897                         } else {
2898                             i_ungetc(c1,f);
2899                         }
2900                         c1 = NL;
2901                         SEND;
2902                     } else  { /* if (c1 == CR)*/
2903                         if ((c1=(*i_getc)(f))!=EOF) {
2904                             if (c1==SPACE) {
2905                                 i_ungetc(SPACE,f);
2906                                 continue;
2907                             } else if (c1 == NL && (c1=(*i_getc)(f))!=EOF && c1 == SPACE) {
2908                                 i_ungetc(SPACE,f);
2909                                 continue;
2910                             } else {
2911                                 i_ungetc(c1,f);
2912                             }
2913                             i_ungetc(NL,f);
2914                         } else {
2915                             i_ungetc(c1,f);
2916                         }
2917                         c1 = CR;
2918                         SEND;
2919                     }
2920                 }
2921                 if (crmode_f == CR && c1 == NL) crmode_f = CRLF;
2922                 else crmode_f = c1;
2923             } else if (c1 == DEL && input_mode == X0208 ) {
2924                 /* CP5022x */
2925                 c2 = c1;
2926                 NEXT;
2927             } else 
2928                 SEND;
2929         }
2930         /* send: */
2931         switch(input_mode){
2932         case ASCII:
2933             switch ((*iconv)(c2, c1, c0)) {  /* can be EUC / SJIS / UTF-8 / UTF-16 */
2934             case -2:
2935                 /* 4 bytes UTF-8 */
2936                 if ((c0 = (*i_getc)(f)) != EOF) {
2937                     code_status(c0);
2938                     c0 <<= 8;
2939                     if ((c3 = (*i_getc)(f)) != EOF) {
2940                         code_status(c3);
2941                         (*iconv)(c2, c1, c0|c3);
2942                     }
2943                 }
2944                 break;
2945             case -1:
2946                 /* 3 bytes EUC or UTF-8 */
2947                 if ((c0 = (*i_getc)(f)) != EOF) {
2948                     code_status(c0);
2949                     (*iconv)(c2, c1, c0);
2950                 }
2951                 break;
2952             }
2953             break;
2954         case X0208:
2955         case X0213_1:
2956             if (ms_ucs_map_f &&
2957                 0x7F <= c2 && c2 <= 0x92 &&
2958                 0x21 <= c1 && c1 <= 0x7E) {
2959                 /* CP932 UDC */
2960                 if(c1 == 0x7F) return 0;
2961                 c1 = (c2 - 0x7F) * 94 + c1 - 0x21 + 0xE000 + CLASS_UNICODE;
2962                 c2 = 0;
2963             }
2964             (*oconv)(c2, c1); /* this is JIS, not SJIS/EUC case */
2965             break;
2966 #ifdef X0212_ENABLE
2967         case X0212:
2968             (*oconv)(PREFIX_EUCG3 | c2, c1);
2969             break;
2970 #endif /* X0212_ENABLE */
2971         case X0213_2:
2972             (*oconv)(PREFIX_EUCG3 | c2, c1);
2973             break;
2974         default:
2975             (*oconv)(input_mode, c1);  /* other special case */
2976         }
2977
2978         c2 = 0;
2979         c0 = 0;
2980         continue;
2981         /* goto next_word */
2982     }
2983
2984     /* epilogue */
2985     (*iconv)(EOF, 0, 0);
2986     if (!is_inputcode_set)
2987     {
2988         if (is_8bit) {
2989             struct input_code *p = input_code_list;
2990             struct input_code *result = p;
2991             while (p->name){
2992                 if (p->score < result->score) result = p;
2993                 ++p;
2994             }
2995             set_input_codename(result->name);
2996         }
2997     }
2998     return 1;
2999 }
3000
3001 nkf_char
3002 h_conv(FILE *f, nkf_char c2, nkf_char c1)
3003 {
3004     nkf_char ret, c3, c0;
3005     int hold_index;
3006
3007
3008     /** it must NOT be in the kanji shifte sequence      */
3009     /** it must NOT be written in JIS7                   */
3010     /** and it must be after 2 byte 8bit code            */
3011
3012     hold_count = 0;
3013     push_hold_buf(c2);
3014     push_hold_buf(c1);
3015
3016     while ((c1 = (*i_getc)(f)) != EOF) {
3017         if (c1 == ESC){
3018             (*i_ungetc)(c1,f);
3019             break;
3020         }
3021         code_status(c1);
3022         if (push_hold_buf(c1) == EOF || estab_f){
3023             break;
3024         }
3025     }
3026
3027     if (!estab_f){
3028         struct input_code *p = input_code_list;
3029         struct input_code *result = p;
3030         if (c1 == EOF){
3031             code_status(c1);
3032         }
3033         while (p->name){
3034             if (p->score < result->score){
3035                 result = p;
3036             }
3037             ++p;
3038         }
3039         set_iconv(FALSE, result->iconv_func);
3040     }
3041
3042
3043     /** now,
3044      ** 1) EOF is detected, or
3045      ** 2) Code is established, or
3046      ** 3) Buffer is FULL (but last word is pushed)
3047      **
3048      ** in 1) and 3) cases, we continue to use
3049      ** Kanji codes by oconv and leave estab_f unchanged.
3050      **/
3051
3052     ret = c1;
3053     hold_index = 0;
3054     while (hold_index < hold_count){
3055         c2 = hold_buf[hold_index++];
3056         if (c2 <= DEL
3057 #ifdef NUMCHAR_OPTION
3058             || is_unicode_capsule(c2)
3059 #endif
3060             ){
3061             (*iconv)(0, c2, 0);
3062             continue;
3063         }else if (iconv == s_iconv && 0xa1 <= c2 && c2 <= 0xdf){
3064             (*iconv)(X0201, c2, 0);
3065             continue;
3066         }
3067         if (hold_index < hold_count){
3068             c1 = hold_buf[hold_index++];
3069         }else{
3070             c1 = (*i_getc)(f);
3071             if (c1 == EOF){
3072                 c3 = EOF;
3073                 break;
3074             }
3075             code_status(c1);
3076         }
3077         c0 = 0;
3078         switch ((*iconv)(c2, c1, 0)) {  /* can be EUC/SJIS/UTF-8 */
3079         case -2:
3080             /* 4 bytes UTF-8 */
3081             if (hold_index < hold_count){
3082                 c0 = hold_buf[hold_index++];
3083             } else if ((c0 = (*i_getc)(f)) == EOF) {
3084                 ret = EOF;
3085                 break;
3086             } else {
3087                 code_status(c0);
3088                 c0 <<= 8;
3089                 if (hold_index < hold_count){
3090                     c3 = hold_buf[hold_index++];
3091                 } else if ((c3 = (*i_getc)(f)) == EOF) {
3092                     c0 = ret = EOF;
3093                     break;
3094                 } else {
3095                     code_status(c3);
3096                     (*iconv)(c2, c1, c0|c3);
3097                 }
3098             }
3099             break;
3100         case -1:
3101             /* 3 bytes EUC or UTF-8 */
3102             if (hold_index < hold_count){
3103                 c0 = hold_buf[hold_index++];
3104             } else if ((c0 = (*i_getc)(f)) == EOF) {
3105                 ret = EOF;
3106                 break;
3107             } else {
3108                 code_status(c0);
3109             }
3110             (*iconv)(c2, c1, c0);
3111             break;
3112         }
3113         if (c0 == EOF) break;
3114     }
3115     return ret;
3116 }
3117
3118 nkf_char push_hold_buf(nkf_char c2)
3119 {
3120     if (hold_count >= HOLD_SIZE*2)
3121         return (EOF);
3122     hold_buf[hold_count++] = (unsigned char)c2;
3123     return ((hold_count >= HOLD_SIZE*2) ? EOF : hold_count);
3124 }
3125
3126 nkf_char s2e_conv(nkf_char c2, nkf_char c1, nkf_char *p2, nkf_char *p1)
3127 {
3128 #if defined(SHIFTJIS_CP932) || defined(X0212_ENABLE)
3129     nkf_char val;
3130 #endif
3131     static const nkf_char shift_jisx0213_s1a3_table[5][2] ={ { 1, 8}, { 3, 4}, { 5,12}, {13,14}, {15, 0} };
3132 #ifdef SHIFTJIS_CP932
3133     if (!cp932inv_f && is_ibmext_in_sjis(c2)){
3134 #if 0
3135         extern const unsigned short shiftjis_cp932[3][189];
3136 #endif
3137         val = shiftjis_cp932[c2 - CP932_TABLE_BEGIN][c1 - 0x40];
3138         if (val){
3139             c2 = val >> 8;
3140             c1 = val & 0xff;
3141         }
3142     }
3143     if (cp932inv_f
3144         && CP932INV_TABLE_BEGIN <= c2 && c2 <= CP932INV_TABLE_END){
3145 #if 0
3146         extern const unsigned short cp932inv[2][189];
3147 #endif
3148         nkf_char c = cp932inv[c2 - CP932INV_TABLE_BEGIN][c1 - 0x40];
3149         if (c){
3150             c2 = c >> 8;
3151             c1 = c & 0xff;
3152         }
3153     }
3154 #endif /* SHIFTJIS_CP932 */
3155 #ifdef X0212_ENABLE
3156     if (!x0213_f && is_ibmext_in_sjis(c2)){
3157 #if 0
3158         extern const unsigned short shiftjis_x0212[3][189];
3159 #endif
3160         val = shiftjis_x0212[c2 - 0xfa][c1 - 0x40];
3161         if (val){
3162             if (val > 0x7FFF){
3163                 c2 = PREFIX_EUCG3 | ((val >> 8) & 0x7f);
3164                 c1 = val & 0xff;
3165             }else{
3166                 c2 = val >> 8;
3167                 c1 = val & 0xff;
3168             }
3169             if (p2) *p2 = c2;
3170             if (p1) *p1 = c1;
3171             return 0;
3172         }
3173     }
3174 #endif
3175     if(c2 >= 0x80){
3176         if(x0213_f && c2 >= 0xF0){
3177             if(c2 <= 0xF3 || (c2 == 0xF4 && c1 < 0x9F)){ /* k=1, 3<=k<=5, k=8, 12<=k<=15 */
3178                 c2 = PREFIX_EUCG3 | 0x20 | shift_jisx0213_s1a3_table[c2 - 0xF0][0x9E < c1];
3179             }else{ /* 78<=k<=94 */
3180                 c2 = PREFIX_EUCG3 | (c2 * 2 - 0x17B);
3181                 if (0x9E < c1) c2++;
3182             }
3183         }else{
3184             c2 = c2 + c2 - ((c2 <= 0x9F) ? SJ0162 : SJ6394);
3185             if (0x9E < c1) c2++;
3186         }
3187         if (c1 < 0x9F)
3188             c1 = c1 - ((c1 > DEL) ? SPACE : 0x1F);
3189         else {
3190             c1 = c1 - 0x7E;
3191         }
3192     }
3193
3194 #ifdef X0212_ENABLE
3195     c2 = x0212_unshift(c2);
3196 #endif
3197     if (p2) *p2 = c2;
3198     if (p1) *p1 = c1;
3199     return 0;
3200 }
3201
3202 nkf_char s_iconv(nkf_char c2, nkf_char c1, nkf_char c0)
3203 {
3204     if (c2 == X0201) {
3205         c1 &= 0x7f;
3206     } else if ((c2 == EOF) || (c2 == 0) || c2 < SPACE) {
3207         /* NOP */
3208     } else if (!x0213_f && 0xF0 <= c2 && c2 <= 0xF9 && 0x40 <= c1 && c1 <= 0xFC) {
3209         /* CP932 UDC */
3210         if(c1 == 0x7F) return 0;
3211         c1 = (c2 - 0xF0) * 188 + (c1 - 0x40 - (0x7E < c1)) + 0xE000 + CLASS_UNICODE;
3212         c2 = 0;
3213     } else {
3214         nkf_char ret = s2e_conv(c2, c1, &c2, &c1);
3215         if (ret) return ret;
3216     }
3217     (*oconv)(c2, c1);
3218     return 0;
3219 }
3220
3221 nkf_char e_iconv(nkf_char c2, nkf_char c1, nkf_char c0)
3222 {
3223     if (c2 == X0201) {
3224         c1 &= 0x7f;
3225 #ifdef X0212_ENABLE
3226     }else if (c2 == 0x8f){
3227         if (c0 == 0){
3228             return -1;
3229         }
3230         if (!cp51932_f && !x0213_f && 0xF5 <= c1 && c1 <= 0xFE && 0xA1 <= c0 && c0 <= 0xFE) {
3231             /* encoding is eucJP-ms, so invert to Unicode Private User Area */
3232             c1 = (c1 - 0xF5) * 94 + c0 - 0xA1 + 0xE3AC + CLASS_UNICODE;
3233             c2 = 0;
3234         } else {
3235             c2 = (c2 << 8) | (c1 & 0x7f);
3236             c1 = c0 & 0x7f;
3237 #ifdef SHIFTJIS_CP932
3238             if (cp51932_f){
3239                 nkf_char s2, s1;
3240                 if (e2s_conv(c2, c1, &s2, &s1) == 0){
3241                     s2e_conv(s2, s1, &c2, &c1);
3242                     if (c2 < 0x100){
3243                         c1 &= 0x7f;
3244                         c2 &= 0x7f;
3245                     }
3246                 }
3247             }
3248 #endif /* SHIFTJIS_CP932 */
3249         }
3250 #endif /* X0212_ENABLE */
3251     } else if (c2 == SSO){
3252         c2 = X0201;
3253         c1 &= 0x7f;
3254     } else if ((c2 == EOF) || (c2 == 0) || c2 < SPACE) {
3255         /* NOP */
3256     } else {
3257         if (!cp51932_f && ms_ucs_map_f && 0xF5 <= c2 && c2 <= 0xFE && 0xA1 <= c1 && c1 <= 0xFE) {
3258             /* encoding is eucJP-ms, so invert to Unicode Private User Area */
3259             c1 = (c2 - 0xF5) * 94 + c1 - 0xA1 + 0xE000 + CLASS_UNICODE;
3260             c2 = 0;
3261         } else {
3262             c1 &= 0x7f;
3263             c2 &= 0x7f;
3264 #ifdef SHIFTJIS_CP932
3265             if (cp51932_f && 0x79 <= c2 && c2 <= 0x7c){
3266                 nkf_char s2, s1;
3267                 if (e2s_conv(c2, c1, &s2, &s1) == 0){
3268                     s2e_conv(s2, s1, &c2, &c1);
3269                     if (c2 < 0x100){
3270                         c1 &= 0x7f;
3271                         c2 &= 0x7f;
3272                     }
3273                 }
3274             }
3275 #endif /* SHIFTJIS_CP932 */
3276         }
3277     }
3278     (*oconv)(c2, c1);
3279     return 0;
3280 }
3281
3282 #ifdef UTF8_INPUT_ENABLE
3283 nkf_char w2e_conv(nkf_char c2, nkf_char c1, nkf_char c0, nkf_char *p2, nkf_char *p1)
3284 {
3285     nkf_char ret = 0;
3286
3287     if (!c1){
3288         *p2 = 0;
3289         *p1 = c2;
3290     }else if (0xc0 <= c2 && c2 <= 0xef) {
3291         ret =  unicode_to_jis_common(c2, c1, c0, p2, p1);
3292 #ifdef NUMCHAR_OPTION
3293         if (ret > 0){
3294             if (p2) *p2 = 0;
3295             if (p1) *p1 = CLASS_UNICODE | ww16_conv(c2, c1, c0);
3296             ret = 0;
3297         }
3298 #endif
3299     }
3300     return ret;
3301 }
3302
3303 nkf_char w_iconv(nkf_char c2, nkf_char c1, nkf_char c0)
3304 {
3305     nkf_char ret = 0;
3306     static const int w_iconv_utf8_1st_byte[] =
3307     { /* 0xC0 - 0xFF */
3308         20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
3309         21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
3310         30, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 32, 33, 33,
3311         40, 41, 41, 41, 42, 43, 43, 43, 50, 50, 50, 50, 60, 60, 70, 70};
3312     
3313     if (c2 < 0 || 0xff < c2) {
3314     }else if (c2 == 0) { /* 0 : 1 byte*/
3315         c0 = 0;
3316     } else if ((c2 & 0xc0) == 0x80) { /* 0x80-0xbf : trail byte */
3317         return 0;
3318     } else{
3319         switch (w_iconv_utf8_1st_byte[c2 - 0xC0]) {
3320         case 21:
3321             if (c1 < 0x80 || 0xBF < c1) return 0;
3322             break;
3323         case 30:
3324             if (c0 == 0) return -1;
3325             if (c1 < 0xA0 || 0xBF < c1 || (c0 & 0xc0) != 0x80)
3326                 return 0;
3327             break;
3328         case 31:
3329         case 33:
3330             if (c0 == 0) return -1;
3331             if ((c1 & 0xc0) != 0x80 || (c0 & 0xc0) != 0x80)
3332                 return 0;
3333             break;
3334         case 32:
3335             if (c0 == 0) return -1;
3336             if (c1 < 0x80 || 0x9F < c1 || (c0 & 0xc0) != 0x80)
3337                 return 0;
3338             break;
3339         case 40:
3340             if (c0 == 0) return -2;
3341             if (c1 < 0x90 || 0xBF < c1 || (c0 & 0xc0c0) != 0x8080)
3342                 return 0;
3343             break;
3344         case 41:
3345             if (c0 == 0) return -2;
3346             if (c1 < 0x80 || 0xBF < c1 || (c0 & 0xc0c0) != 0x8080)
3347                 return 0;
3348             break;
3349         case 42:
3350             if (c0 == 0) return -2;
3351             if (c1 < 0x80 || 0x8F < c1 || (c0 & 0xc0c0) != 0x8080)
3352                 return 0;
3353             break;
3354         default:
3355             return 0;
3356             break;
3357         }
3358     }
3359     if (c2 == 0 || c2 == EOF){
3360     } else if ((c2 & 0xf8) == 0xf0) { /* 4 bytes */
3361         c1 = CLASS_UNICODE | ww16_conv(c2, c1, c0);
3362         c2 = 0;
3363     } else {
3364         ret = w2e_conv(c2, c1, c0, &c2, &c1);
3365     }
3366     if (ret == 0){
3367         (*oconv)(c2, c1);
3368     }
3369     return ret;
3370 }
3371 #endif
3372
3373 #if defined(UTF8_INPUT_ENABLE) || defined(UTF8_OUTPUT_ENABLE)
3374 void w16w_conv(nkf_char val, nkf_char *p2, nkf_char *p1, nkf_char *p0)
3375 {
3376     val &= VALUE_MASK;
3377     if (val < 0x80){
3378         *p2 = val;
3379         *p1 = 0;
3380         *p0 = 0;
3381     }else if (val < 0x800){
3382         *p2 = 0xc0 | (val >> 6);
3383         *p1 = 0x80 | (val & 0x3f);
3384         *p0 = 0;
3385     } else if (val <= NKF_INT32_C(0xFFFF)) {
3386         *p2 = 0xe0 | (val >> 12);
3387         *p1 = 0x80 | ((val >> 6) & 0x3f);
3388         *p0 = 0x80 | (val        & 0x3f);
3389     } else if (val <= NKF_INT32_C(0x10FFFF)) {
3390         *p2 = 0xe0 |  (val >> 16);
3391         *p1 = 0x80 | ((val >> 12) & 0x3f);
3392         *p0 = 0x8080 | ((val << 2) & 0x3f00)| (val & 0x3f);
3393     } else {
3394         *p2 = 0;
3395         *p1 = 0;
3396         *p0 = 0;
3397     }
3398 }
3399 #endif
3400
3401 #ifdef UTF8_INPUT_ENABLE
3402 nkf_char ww16_conv(nkf_char c2, nkf_char c1, nkf_char c0)
3403 {
3404     nkf_char val;
3405     if (c2 >= 0xf8) {
3406         val = -1;
3407     } else if (c2 >= 0xf0){
3408         /* c2: 1st, c1: 2nd, c0: 3rd/4th */
3409         val = (c2 & 0x0f) << 18;
3410         val |= (c1 & 0x3f) << 12;
3411         val |= (c0 & 0x3f00) >> 2;
3412         val |= (c0 & 0x3f);
3413     }else if (c2 >= 0xe0){
3414         val = (c2 & 0x0f) << 12;
3415         val |= (c1 & 0x3f) << 6;
3416         val |= (c0 & 0x3f);
3417     }else if (c2 >= 0xc0){
3418         val = (c2 & 0x1f) << 6;
3419         val |= (c1 & 0x3f);
3420     }else{
3421         val = c2;
3422     }
3423     return val;
3424 }
3425
3426 nkf_char w16e_conv(nkf_char val, nkf_char *p2, nkf_char *p1)
3427 {
3428     nkf_char c2, c1, c0;
3429     nkf_char ret = 0;
3430     val &= VALUE_MASK;
3431     if (val < 0x80){
3432         *p2 = 0;
3433         *p1 = val;
3434     }else{
3435         w16w_conv(val, &c2, &c1, &c0);
3436         ret =  unicode_to_jis_common(c2, c1, c0, p2, p1);
3437 #ifdef NUMCHAR_OPTION
3438         if (ret > 0){
3439             *p2 = 0;
3440             *p1 = CLASS_UNICODE | val;
3441             ret = 0;
3442         }
3443 #endif
3444     }
3445     return ret;
3446 }
3447 #endif
3448
3449 #ifdef UTF8_INPUT_ENABLE
3450 nkf_char w_iconv16(nkf_char c2, nkf_char c1, nkf_char c0)
3451 {
3452     nkf_char ret = 0;
3453     if ((c2==0 && c1 < 0x80) || c2==EOF) {
3454         (*oconv)(c2, c1);
3455         return 0;
3456     }else if (0xD8 <= c2 && c2 <= 0xDB) {
3457         if (c0 < NKF_INT32_C(0xDC00) || NKF_INT32_C(0xDFFF) < c0)
3458             return -2;
3459         c1 =  CLASS_UNICODE | ((c2 << 18) + (c1 << 10) + c0 - NKF_INT32_C(0x35FDC00));
3460         c2 = 0;
3461     }else if ((c2>>3) == 27) { /* unpaired surrogate */
3462         /*
3463            return 2;
3464         */
3465         return 1;
3466     }else ret = w16e_conv(((c2 & 0xff)<<8) + c1, &c2, &c1);
3467     if (ret) return ret;
3468     (*oconv)(c2, c1);
3469     return 0;
3470 }
3471
3472 nkf_char w_iconv32(nkf_char c2, nkf_char c1, nkf_char c0)
3473 {
3474     int ret = 0;
3475
3476     if ((c2 == 0 && c1 < 0x80) || c2==EOF) {
3477     } else if (is_unicode_bmp(c1)) {
3478         ret = w16e_conv(c1, &c2, &c1);
3479     } else {
3480         c2 = 0;
3481         c1 =  CLASS_UNICODE | c1;
3482     }
3483     if (ret) return ret;
3484     (*oconv)(c2, c1);
3485     return 0;
3486 }
3487
3488 nkf_char unicode_to_jis_common(nkf_char c2, nkf_char c1, nkf_char c0, nkf_char *p2, nkf_char *p1)
3489 {
3490 #if 0
3491     extern const unsigned short *const utf8_to_euc_2bytes[];
3492     extern const unsigned short *const utf8_to_euc_2bytes_ms[];
3493     extern const unsigned short *const utf8_to_euc_2bytes_932[];
3494     extern const unsigned short *const *const utf8_to_euc_3bytes[];
3495     extern const unsigned short *const *const utf8_to_euc_3bytes_ms[];
3496     extern const unsigned short *const *const utf8_to_euc_3bytes_932[];
3497 #endif
3498     const unsigned short *const *pp;
3499     const unsigned short *const *const *ppp;
3500     static const int no_best_fit_chars_table_C2[] =
3501     {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3502         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3503         1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 2, 1, 1, 2,
3504         0, 0, 1, 1, 0, 1, 0, 1, 2, 1, 1, 1, 1, 1, 1, 1};
3505     static const int no_best_fit_chars_table_C2_ms[] =
3506     {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3507         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3508         1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0,
3509         0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0};
3510     static const int no_best_fit_chars_table_932_C2[] =
3511     {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3512         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3513         1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1,
3514         0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0};
3515     static const int no_best_fit_chars_table_932_C3[] =
3516     {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3517         1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1,
3518         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3519         1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1};
3520     nkf_char ret = 0;
3521
3522     if(c2 < 0x80){
3523         *p2 = 0;
3524         *p1 = c2;
3525     }else if(c2 < 0xe0){
3526         if(no_best_fit_chars_f){
3527             if(ms_ucs_map_f == UCS_MAP_CP932){
3528                 switch(c2){
3529                 case 0xC2:
3530                     if(no_best_fit_chars_table_932_C2[c1&0x3F]) return 1;
3531                     break;
3532                 case 0xC3:
3533                     if(no_best_fit_chars_table_932_C3[c1&0x3F]) return 1;
3534                     break;
3535                 }
3536             }else if(!cp932inv_f){
3537                 switch(c2){
3538                 case 0xC2:
3539                     if(no_best_fit_chars_table_C2[c1&0x3F]) return 1;
3540                     break;
3541                 case 0xC3:
3542                     if(no_best_fit_chars_table_932_C3[c1&0x3F]) return 1;
3543                     break;
3544                 }
3545             }else if(ms_ucs_map_f == UCS_MAP_MS){
3546                 if(c2 == 0xC2 && no_best_fit_chars_table_C2_ms[c1&0x3F]) return 1;
3547             }
3548         }
3549         pp =
3550             ms_ucs_map_f == UCS_MAP_CP932 ? utf8_to_euc_2bytes_932 :
3551             ms_ucs_map_f == UCS_MAP_MS ? utf8_to_euc_2bytes_ms :
3552             utf8_to_euc_2bytes;
3553         ret =  w_iconv_common(c2, c1, pp, sizeof_utf8_to_euc_2bytes, p2, p1);
3554     }else if(c0 < 0xF0){
3555         if(no_best_fit_chars_f){
3556             if(ms_ucs_map_f == UCS_MAP_CP932){
3557                 if(c2 == 0xE3 && c1 == 0x82 && c0 == 0x94) return 1;
3558             }else if(ms_ucs_map_f == UCS_MAP_MS){
3559                 switch(c2){
3560                 case 0xE2:
3561                     switch(c1){
3562                     case 0x80:
3563                         if(c0 == 0x94 || c0 == 0x96 || c0 == 0xBE) return 1;
3564                         break;
3565                     case 0x88:
3566                         if(c0 == 0x92) return 1;
3567                         break;
3568                     }
3569                     break;
3570                 case 0xE3:
3571                     if(c1 == 0x80 || c0 == 0x9C) return 1;
3572                     break;
3573                 }
3574             }else{
3575                 switch(c2){
3576                 case 0xE2:
3577                     switch(c1){
3578                     case 0x80:
3579                         if(c0 == 0x95) return 1;
3580                         break;
3581                     case 0x88:
3582                         if(c0 == 0xA5) return 1;
3583                         break;
3584                     }
3585                     break;
3586                 case 0xEF:
3587                     switch(c1){
3588                     case 0xBC:
3589                         if(c0 == 0x8D) return 1;
3590                         break;
3591                     case 0xBD:
3592                         if(c0 == 0x9E && !cp932inv_f) return 1;
3593                         break;
3594                     case 0xBF:
3595                         if(0xA0 <= c0 && c0 <= 0xA5) return 1;
3596                         break;
3597                     }
3598                     break;
3599                 }
3600             }
3601         }
3602         ppp =
3603             ms_ucs_map_f == UCS_MAP_CP932 ? utf8_to_euc_3bytes_932 :
3604             ms_ucs_map_f == UCS_MAP_MS ? utf8_to_euc_3bytes_ms :
3605             utf8_to_euc_3bytes;
3606         ret = w_iconv_common(c1, c0, ppp[c2 - 0xE0], sizeof_utf8_to_euc_C2, p2, p1);
3607     }else return -1;
3608 #ifdef SHIFTJIS_CP932
3609     if (!ret && !cp932inv_f && is_eucg3(*p2)) {
3610         nkf_char s2, s1;
3611         if (e2s_conv(*p2, *p1, &s2, &s1) == 0) {
3612             s2e_conv(s2, s1, p2, p1);
3613         }else{
3614             ret = 1;
3615         }
3616     }
3617 #endif
3618     return ret;
3619 }
3620
3621 nkf_char w_iconv_common(nkf_char c1, nkf_char c0, const unsigned short *const *pp, nkf_char psize, nkf_char *p2, nkf_char *p1)
3622 {
3623     nkf_char c2;
3624     const unsigned short *p;
3625     unsigned short val;
3626
3627     if (pp == 0) return 1;
3628
3629     c1 -= 0x80;
3630     if (c1 < 0 || psize <= c1) return 1;
3631     p = pp[c1];
3632     if (p == 0)  return 1;
3633
3634     c0 -= 0x80;
3635     if (c0 < 0 || sizeof_utf8_to_euc_C2 <= c0) return 1;
3636     val = p[c0];
3637     if (val == 0) return 1;
3638     if (no_cp932ext_f && (
3639         (val>>8) == 0x2D || /* NEC special characters */
3640         val > NKF_INT32_C(0xF300) /* IBM extended characters */
3641         )) return 1;
3642
3643     c2 = val >> 8;
3644    if (val > 0x7FFF){
3645         c2 &= 0x7f;
3646         c2 |= PREFIX_EUCG3;
3647     }
3648     if (c2 == SO) c2 = X0201;
3649     c1 = val & 0x7f;
3650     if (p2) *p2 = c2;
3651     if (p1) *p1 = c1;
3652     return 0;
3653 }
3654
3655 void nkf_each_char_to_hex(void (*f)(nkf_char c2,nkf_char c1), nkf_char c)
3656 {
3657     const char *hex = "0123456789ABCDEF";
3658     int shift = 20;
3659     c &= VALUE_MASK;
3660     while(shift >= 0){
3661         if(c >= 1<<shift){
3662             while(shift >= 0){
3663                 (*f)(0, hex[(c>>shift)&0xF]);
3664                 shift -= 4;
3665             }
3666         }else{
3667             shift -= 4;
3668         }
3669     }
3670     return;
3671 }
3672
3673 void encode_fallback_html(nkf_char c)
3674 {
3675     (*oconv)(0, '&');
3676     (*oconv)(0, '#');
3677     c &= VALUE_MASK;
3678     if(c >= NKF_INT32_C(1000000))
3679         (*oconv)(0, 0x30+(c/NKF_INT32_C(1000000))%10);
3680     if(c >= NKF_INT32_C(100000))
3681         (*oconv)(0, 0x30+(c/NKF_INT32_C(100000) )%10);
3682     if(c >= 10000)
3683         (*oconv)(0, 0x30+(c/10000  )%10);
3684     if(c >= 1000)
3685         (*oconv)(0, 0x30+(c/1000   )%10);
3686     if(c >= 100)
3687         (*oconv)(0, 0x30+(c/100    )%10);
3688     if(c >= 10)
3689         (*oconv)(0, 0x30+(c/10     )%10);
3690     if(c >= 0)
3691         (*oconv)(0, 0x30+ c         %10);
3692     (*oconv)(0, ';');
3693     return;
3694 }
3695
3696 void encode_fallback_xml(nkf_char c)
3697 {
3698     (*oconv)(0, '&');
3699     (*oconv)(0, '#');
3700     (*oconv)(0, 'x');
3701     nkf_each_char_to_hex(oconv, c);
3702     (*oconv)(0, ';');
3703     return;
3704 }
3705
3706 void encode_fallback_java(nkf_char c)
3707 {
3708     const char *hex = "0123456789ABCDEF";
3709     (*oconv)(0, '\\');
3710     c &= VALUE_MASK;
3711     if(!is_unicode_bmp(c)){
3712         (*oconv)(0, 'U');
3713         (*oconv)(0, '0');
3714         (*oconv)(0, '0');
3715         (*oconv)(0, hex[(c>>20)&0xF]);
3716         (*oconv)(0, hex[(c>>16)&0xF]);
3717     }else{
3718         (*oconv)(0, 'u');
3719     }
3720     (*oconv)(0, hex[(c>>12)&0xF]);
3721     (*oconv)(0, hex[(c>> 8)&0xF]);
3722     (*oconv)(0, hex[(c>> 4)&0xF]);
3723     (*oconv)(0, hex[ c     &0xF]);
3724     return;
3725 }
3726
3727 void encode_fallback_perl(nkf_char c)
3728 {
3729     (*oconv)(0, '\\');
3730     (*oconv)(0, 'x');
3731     (*oconv)(0, '{');
3732     nkf_each_char_to_hex(oconv, c);
3733     (*oconv)(0, '}');
3734     return;
3735 }
3736
3737 void encode_fallback_subchar(nkf_char c)
3738 {
3739     c = unicode_subchar;
3740     (*oconv)((c>>8)&0xFF, c&0xFF);
3741     return;
3742 }
3743 #endif
3744
3745 #ifdef UTF8_OUTPUT_ENABLE
3746 nkf_char e2w_conv(nkf_char c2, nkf_char c1)
3747 {
3748 #if 0
3749     extern const unsigned short euc_to_utf8_1byte[];
3750     extern const unsigned short *const euc_to_utf8_2bytes[];
3751     extern const unsigned short *const euc_to_utf8_2bytes_ms[];
3752     extern const unsigned short *const x0212_to_utf8_2bytes[];
3753 #endif
3754     const unsigned short *p;
3755
3756     if (c2 == X0201) {
3757         p = euc_to_utf8_1byte;
3758 #ifdef X0212_ENABLE
3759     } else if (is_eucg3(c2)){
3760         if(ms_ucs_map_f == UCS_MAP_ASCII&& c2 == NKF_INT32_C(0x8F22) && c1 == 0x43){
3761             return 0xA6;
3762         }
3763         c2 = (c2&0x7f) - 0x21;
3764         if (0<=c2 && c2<sizeof_euc_to_utf8_2bytes)
3765             p = x0212_to_utf8_2bytes[c2];
3766         else
3767             return 0;
3768 #endif
3769     } else {
3770         c2 &= 0x7f;
3771         c2 = (c2&0x7f) - 0x21;
3772         if (0<=c2 && c2<sizeof_euc_to_utf8_2bytes)
3773             p = ms_ucs_map_f != UCS_MAP_ASCII ? euc_to_utf8_2bytes_ms[c2] : euc_to_utf8_2bytes[c2];
3774         else
3775             return 0;
3776     }
3777     if (!p) return 0;
3778     c1 = (c1 & 0x7f) - 0x21;
3779     if (0<=c1 && c1<sizeof_euc_to_utf8_1byte)
3780         return p[c1];
3781     return 0;
3782 }
3783
3784 void w_oconv(nkf_char c2, nkf_char c1)
3785 {
3786     nkf_char c0;
3787     nkf_char val;
3788
3789     if (output_bom_f) {
3790         output_bom_f = FALSE;
3791         (*o_putc)('\357');
3792         (*o_putc)('\273');
3793         (*o_putc)('\277');
3794     }
3795
3796     if (c2 == EOF) {
3797         (*o_putc)(EOF);
3798         return;
3799     }
3800
3801 #ifdef NUMCHAR_OPTION
3802     if (c2 == 0 && is_unicode_capsule(c1)){
3803         val = c1 & VALUE_MASK;
3804         if (val < 0x80){
3805             (*o_putc)(val);
3806         }else if (val < 0x800){
3807             (*o_putc)(0xC0 | (val >> 6));
3808             (*o_putc)(0x80 | (val & 0x3f));
3809         } else if (val <= NKF_INT32_C(0xFFFF)) {
3810             (*o_putc)(0xE0 | (val >> 12));
3811             (*o_putc)(0x80 | ((val >> 6) & 0x3f));
3812             (*o_putc)(0x80 | (val        & 0x3f));
3813         } else if (val <= NKF_INT32_C(0x10FFFF)) {
3814             (*o_putc)(0xF0 | ( val>>18));
3815             (*o_putc)(0x80 | ((val>>12) & 0x3f));
3816             (*o_putc)(0x80 | ((val>> 6) & 0x3f));
3817             (*o_putc)(0x80 | ( val      & 0x3f));
3818         }
3819         return;
3820     }
3821 #endif
3822
3823     if (c2 == 0) { 
3824         output_mode = ASCII;
3825         (*o_putc)(c1);
3826     } else if (c2 == ISO8859_1) {
3827         output_mode = ISO8859_1;
3828         (*o_putc)(c1 | 0x080);
3829     } else {
3830         output_mode = UTF8;
3831         val = e2w_conv(c2, c1);
3832         if (val){
3833             w16w_conv(val, &c2, &c1, &c0);
3834             (*o_putc)(c2);
3835             if (c1){
3836                 (*o_putc)(c1);
3837                 if (c0) (*o_putc)(c0);
3838             }
3839         }
3840     }
3841 }
3842
3843 void w_oconv16(nkf_char c2, nkf_char c1)
3844 {
3845     if (output_bom_f) {
3846         output_bom_f = FALSE;
3847         if (output_endian == ENDIAN_LITTLE){
3848             (*o_putc)((unsigned char)'\377');
3849             (*o_putc)('\376');
3850         }else{
3851             (*o_putc)('\376');
3852             (*o_putc)((unsigned char)'\377');
3853         }
3854     }
3855
3856     if (c2 == EOF) {
3857         (*o_putc)(EOF);
3858         return;
3859     }
3860
3861     if (c2 == ISO8859_1) {
3862         c2 = 0;
3863         c1 |= 0x80;
3864 #ifdef NUMCHAR_OPTION
3865     } else if (c2 == 0 && is_unicode_capsule(c1)) {
3866         if (is_unicode_bmp(c1)) {
3867             c2 = (c1 >> 8) & 0xff;
3868             c1 &= 0xff;
3869         } else {
3870             c1 &= VALUE_MASK;
3871             if (c1 <= UNICODE_MAX) {
3872                 c2 = (c1 >> 10) + NKF_INT32_C(0xD7C0);   /* high surrogate */
3873                 c1 = (c1 & 0x3FF) + NKF_INT32_C(0xDC00); /* low surrogate */
3874                 if (output_endian == ENDIAN_LITTLE){
3875                     (*o_putc)(c2 & 0xff);
3876                     (*o_putc)((c2 >> 8) & 0xff);
3877                     (*o_putc)(c1 & 0xff);
3878                     (*o_putc)((c1 >> 8) & 0xff);
3879                 }else{
3880                     (*o_putc)((c2 >> 8) & 0xff);
3881                     (*o_putc)(c2 & 0xff);
3882                     (*o_putc)((c1 >> 8) & 0xff);
3883                     (*o_putc)(c1 & 0xff);
3884                 }
3885             }
3886             return;
3887         }
3888 #endif
3889     } else if (c2) {
3890         nkf_char val = e2w_conv(c2, c1);
3891         c2 = (val >> 8) & 0xff;
3892         c1 = val & 0xff;
3893         if (!val) return;
3894     }
3895     if (output_endian == ENDIAN_LITTLE){
3896         (*o_putc)(c1);
3897         (*o_putc)(c2);
3898     }else{
3899         (*o_putc)(c2);
3900         (*o_putc)(c1);
3901     }
3902 }
3903
3904 void w_oconv32(nkf_char c2, nkf_char c1)
3905 {
3906     if (output_bom_f) {
3907         output_bom_f = FALSE;
3908         if (output_endian == ENDIAN_LITTLE){
3909             (*o_putc)((unsigned char)'\377');
3910             (*o_putc)('\376');
3911             (*o_putc)('\000');
3912             (*o_putc)('\000');
3913         }else{
3914             (*o_putc)('\000');
3915             (*o_putc)('\000');
3916             (*o_putc)('\376');
3917             (*o_putc)((unsigned char)'\377');
3918         }
3919     }
3920
3921     if (c2 == EOF) {
3922         (*o_putc)(EOF);
3923         return;
3924     }
3925
3926     if (c2 == ISO8859_1) {
3927         c1 |= 0x80;
3928 #ifdef NUMCHAR_OPTION
3929     } else if (c2 == 0 && is_unicode_capsule(c1)) {
3930         c1 &= VALUE_MASK;
3931 #endif
3932     } else if (c2) {
3933         c1 = e2w_conv(c2, c1);
3934         if (!c1) return;
3935     }
3936     if (output_endian == ENDIAN_LITTLE){
3937         (*o_putc)( c1 & NKF_INT32_C(0x000000FF));
3938         (*o_putc)((c1 & NKF_INT32_C(0x0000FF00)) >>  8);
3939         (*o_putc)((c1 & NKF_INT32_C(0x00FF0000)) >> 16);
3940         (*o_putc)('\000');
3941     }else{
3942         (*o_putc)('\000');
3943         (*o_putc)((c1 & NKF_INT32_C(0x00FF0000)) >> 16);
3944         (*o_putc)((c1 & NKF_INT32_C(0x0000FF00)) >>  8);
3945         (*o_putc)( c1 & NKF_INT32_C(0x000000FF));
3946     }
3947 }
3948 #endif
3949
3950 void e_oconv(nkf_char c2, nkf_char c1)
3951 {
3952 #ifdef NUMCHAR_OPTION
3953     if (c2 == 0 && is_unicode_capsule(c1)){
3954         w16e_conv(c1, &c2, &c1);
3955         if (c2 == 0 && is_unicode_capsule(c1)){
3956             c2 = c1 & VALUE_MASK;
3957             if (x0212_f && 0xE000 <= c2 && c2 <= 0xE757) {
3958                 /* eucJP-ms UDC */
3959                 c1 &= 0xFFF;
3960                 c2 = c1 / 94;
3961                 c2 += c2 < 10 ? 0x75 : 0x8FEB;
3962                 c1 = 0x21 + c1 % 94;
3963                 if (is_eucg3(c2)){
3964                     (*o_putc)(0x8f);
3965                     (*o_putc)((c2 & 0x7f) | 0x080);
3966                     (*o_putc)(c1 | 0x080);
3967                 }else{
3968                     (*o_putc)((c2 & 0x7f) | 0x080);
3969                     (*o_putc)(c1 | 0x080);
3970                 }
3971                 return;
3972             } else {
3973                 if (encode_fallback) (*encode_fallback)(c1);
3974                 return;
3975             }
3976         }
3977     }
3978 #endif
3979     if (c2 == EOF) {
3980         (*o_putc)(EOF);
3981         return;
3982     } else if (c2 == 0) { 
3983         output_mode = ASCII;
3984         (*o_putc)(c1);
3985     } else if (c2 == X0201) {
3986         output_mode = JAPANESE_EUC;
3987         (*o_putc)(SSO); (*o_putc)(c1|0x80);
3988     } else if (c2 == ISO8859_1) {
3989         output_mode = ISO8859_1;
3990         (*o_putc)(c1 | 0x080);
3991 #ifdef X0212_ENABLE
3992     } else if (is_eucg3(c2)){
3993         output_mode = JAPANESE_EUC;
3994 #ifdef SHIFTJIS_CP932
3995         if (!cp932inv_f){
3996             nkf_char s2, s1;
3997             if (e2s_conv(c2, c1, &s2, &s1) == 0){
3998                 s2e_conv(s2, s1, &c2, &c1);
3999             }
4000         }
4001 #endif
4002         if (c2 == 0) {
4003             output_mode = ASCII;
4004             (*o_putc)(c1);
4005         }else if (is_eucg3(c2)){
4006             if (x0212_f){
4007                 (*o_putc)(0x8f);
4008                 (*o_putc)((c2 & 0x7f) | 0x080);
4009                 (*o_putc)(c1 | 0x080);
4010             }
4011         }else{
4012             (*o_putc)((c2 & 0x7f) | 0x080);
4013             (*o_putc)(c1 | 0x080);
4014         }
4015 #endif
4016     } else {
4017         if (!nkf_isgraph(c1) || !nkf_isgraph(c2)) {
4018             set_iconv(FALSE, 0);
4019             return; /* too late to rescue this char */
4020         }
4021         output_mode = JAPANESE_EUC;
4022         (*o_putc)(c2 | 0x080);
4023         (*o_putc)(c1 | 0x080);
4024     }
4025 }
4026
4027 #ifdef X0212_ENABLE
4028 nkf_char x0212_shift(nkf_char c)
4029 {
4030     nkf_char ret = c;
4031     c &= 0x7f;
4032     if (is_eucg3(ret)){
4033         if (0x75 <= c && c <= 0x7f){
4034             ret = c + (0x109 - 0x75);
4035         }
4036     }else{
4037         if (0x75 <= c && c <= 0x7f){
4038             ret = c + (0x113 - 0x75);
4039         }
4040     }
4041     return ret;
4042 }
4043
4044
4045 nkf_char x0212_unshift(nkf_char c)
4046 {
4047     nkf_char ret = c;
4048     if (0x7f <= c && c <= 0x88){
4049         ret = c + (0x75 - 0x7f);
4050     }else if (0x89 <= c && c <= 0x92){
4051         ret = PREFIX_EUCG3 | 0x80 | (c + (0x75 - 0x89));
4052     }
4053     return ret;
4054 }
4055 #endif /* X0212_ENABLE */
4056
4057 nkf_char e2s_conv(nkf_char c2, nkf_char c1, nkf_char *p2, nkf_char *p1)
4058 {
4059     nkf_char ndx;
4060     if (is_eucg3(c2)){
4061         ndx = c2 & 0x7f;
4062         if (x0213_f){
4063             if((0x21 <= ndx && ndx <= 0x2F)){
4064                 if (p2) *p2 = ((ndx - 1) >> 1) + 0xec - ndx / 8 * 3;
4065                 if (p1) *p1 = c1 + ((ndx & 1) ? ((c1 < 0x60) ? 0x1f : 0x20) : 0x7e);
4066                 return 0;
4067             }else if(0x6E <= ndx && ndx <= 0x7E){
4068                 if (p2) *p2 = ((ndx - 1) >> 1) + 0xbe;
4069                 if (p1) *p1 = c1 + ((ndx & 1) ? ((c1 < 0x60) ? 0x1f : 0x20) : 0x7e);
4070                 return 0;
4071             }
4072             return 1;
4073         }
4074 #ifdef X0212_ENABLE
4075         else if(nkf_isgraph(ndx)){
4076             nkf_char val = 0;
4077             const unsigned short *ptr;
4078 #if 0
4079             extern const unsigned short *const x0212_shiftjis[];
4080 #endif
4081             ptr = x0212_shiftjis[ndx - 0x21];
4082             if (ptr){
4083                 val = ptr[(c1 & 0x7f) - 0x21];
4084             }
4085             if (val){
4086                 c2 = val >> 8;
4087                 c1 = val & 0xff;
4088                 if (p2) *p2 = c2;
4089                 if (p1) *p1 = c1;
4090                 return 0;
4091             }
4092             c2 = x0212_shift(c2);
4093         }
4094 #endif /* X0212_ENABLE */
4095     }
4096     if(0x7F < c2) return 1;
4097     if (p2) *p2 = ((c2 - 1) >> 1) + ((c2 <= 0x5e) ? 0x71 : 0xb1);
4098     if (p1) *p1 = c1 + ((c2 & 1) ? ((c1 < 0x60) ? 0x1f : 0x20) : 0x7e);
4099     return 0;
4100 }
4101
4102 void s_oconv(nkf_char c2, nkf_char c1)
4103 {
4104 #ifdef NUMCHAR_OPTION
4105     if (c2 == 0 && is_unicode_capsule(c1)){
4106         w16e_conv(c1, &c2, &c1);
4107         if (c2 == 0 && is_unicode_capsule(c1)){
4108             c2 = c1 & VALUE_MASK;
4109             if (!x0213_f && 0xE000 <= c2 && c2 <= 0xE757) {
4110                 /* CP932 UDC */
4111                 c1 &= 0xFFF;
4112                 c2 = c1 / 188 + 0xF0;
4113                 c1 = c1 % 188;
4114                 c1 += 0x40 + (c1 > 0x3e);
4115                 (*o_putc)(c2);
4116                 (*o_putc)(c1);
4117                 return;
4118             } else {
4119                 if(encode_fallback)(*encode_fallback)(c1);
4120                 return;
4121             }
4122         }
4123     }
4124 #endif
4125     if (c2 == EOF) {
4126         (*o_putc)(EOF);
4127         return;
4128     } else if (c2 == 0) {
4129         output_mode = ASCII;
4130         (*o_putc)(c1);
4131     } else if (c2 == X0201) {
4132         output_mode = SHIFT_JIS;
4133         (*o_putc)(c1|0x80);
4134     } else if (c2 == ISO8859_1) {
4135         output_mode = ISO8859_1;
4136         (*o_putc)(c1 | 0x080);
4137 #ifdef X0212_ENABLE
4138     } else if (is_eucg3(c2)){
4139         output_mode = SHIFT_JIS;
4140         if (e2s_conv(c2, c1, &c2, &c1) == 0){
4141             (*o_putc)(c2);
4142             (*o_putc)(c1);
4143         }
4144 #endif
4145     } else {
4146         if (!nkf_isprint(c1) || !nkf_isprint(c2)) {
4147             set_iconv(FALSE, 0);
4148             return; /* too late to rescue this char */
4149         }
4150         output_mode = SHIFT_JIS;
4151         e2s_conv(c2, c1, &c2, &c1);
4152
4153 #ifdef SHIFTJIS_CP932
4154         if (cp932inv_f
4155             && CP932INV_TABLE_BEGIN <= c2 && c2 <= CP932INV_TABLE_END){
4156 #if 0
4157             extern const unsigned short cp932inv[2][189];
4158 #endif
4159             nkf_char c = cp932inv[c2 - CP932INV_TABLE_BEGIN][c1 - 0x40];
4160             if (c){
4161                 c2 = c >> 8;
4162                 c1 = c & 0xff;
4163             }
4164         }
4165 #endif /* SHIFTJIS_CP932 */
4166
4167         (*o_putc)(c2);
4168         if (prefix_table[(unsigned char)c1]){
4169             (*o_putc)(prefix_table[(unsigned char)c1]);
4170         }
4171         (*o_putc)(c1);
4172     }
4173 }
4174
4175 void j_oconv(nkf_char c2, nkf_char c1)
4176 {
4177 #ifdef NUMCHAR_OPTION
4178     if (c2 == 0 && is_unicode_capsule(c1)){
4179         w16e_conv(c1, &c2, &c1);
4180         if (c2 == 0 && is_unicode_capsule(c1)){
4181             c2 = c1 & VALUE_MASK;
4182             if (ms_ucs_map_f && 0xE000 <= c2 && c2 <= 0xE757) {
4183                 /* CP5022x UDC */
4184                 c1 &= 0xFFF;
4185                 c2 = 0x7F + c1 / 94;
4186                 c1 = 0x21 + c1 % 94;
4187             } else {
4188                 if (encode_fallback) (*encode_fallback)(c1);
4189                 return;
4190             }
4191         }
4192     }
4193 #endif
4194     if (c2 == EOF) {
4195         if (output_mode !=ASCII && output_mode!=ISO8859_1) {
4196             (*o_putc)(ESC);
4197             (*o_putc)('(');
4198             (*o_putc)(ascii_intro);
4199             output_mode = ASCII;
4200         }
4201         (*o_putc)(EOF);
4202 #ifdef X0212_ENABLE
4203     } else if (is_eucg3(c2)){
4204         if(x0213_f){
4205             if(output_mode!=X0213_2){
4206                 output_mode = X0213_2;
4207                 (*o_putc)(ESC);
4208                 (*o_putc)('$');
4209                 (*o_putc)('(');
4210                 (*o_putc)(X0213_2&0x7F);
4211             }
4212         }else{
4213             if(output_mode!=X0212){
4214                 output_mode = X0212;
4215                 (*o_putc)(ESC);
4216                 (*o_putc)('$');
4217                 (*o_putc)('(');
4218                 (*o_putc)(X0212&0x7F);
4219             }
4220         }
4221         (*o_putc)(c2 & 0x7f);