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* Support input NTT DoCoMo's emoji in Shift_JIS
[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 1.116 2006/11/03 20:14:43 naruse Exp $ */
43 #define NKF_VERSION "2.0.8"
44 #define NKF_RELEASE_DATE "2006-11-04"
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 = TRUE;
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                         cp932inv_f = FALSE;
1273 #endif
1274                     }else if(strcmp(codeset, "EUC-JISX0213") == 0 ||
1275                              strcmp(codeset, "EUC-JIS-2004") == 0){
1276                         input_f = EUC_INPUT;
1277                         x0213_f = TRUE;
1278 #ifdef SHIFTJIS_CP932
1279                         cp51932_f = FALSE;
1280                         cp932inv_f = FALSE;
1281 #endif
1282 #ifdef UTF8_INPUT_ENABLE
1283                     }else if(strcmp(codeset, "UTF-8") == 0 ||
1284                              strcmp(codeset, "UTF-8N") == 0 ||
1285                              strcmp(codeset, "UTF-8-BOM") == 0){
1286                         input_f = UTF8_INPUT;
1287 #ifdef UNICODE_NORMALIZATION
1288                     }else if(strcmp(codeset, "UTF8-MAC") == 0 ||
1289                              strcmp(codeset, "UTF-8-MAC") == 0){
1290                         input_f = UTF8_INPUT;
1291                         nfc_f = TRUE;
1292 #endif
1293                     }else if(strcmp(codeset, "UTF-16") == 0 ||
1294                              strcmp(codeset, "UTF-16BE") == 0 ||
1295                              strcmp(codeset, "UTF-16BE-BOM") == 0){
1296                         input_f = UTF16_INPUT;
1297                         input_endian = ENDIAN_BIG;
1298                     }else if(strcmp(codeset, "UTF-16LE") == 0 ||
1299                              strcmp(codeset, "UTF-16LE-BOM") == 0){
1300                         input_f = UTF16_INPUT;
1301                         input_endian = ENDIAN_LITTLE;
1302                     }else if(strcmp(codeset, "UTF-32") == 0 ||
1303                              strcmp(codeset, "UTF-32BE") == 0 ||
1304                              strcmp(codeset, "UTF-32BE-BOM") == 0){
1305                         input_f = UTF32_INPUT;
1306                         input_endian = ENDIAN_BIG;
1307                     }else if(strcmp(codeset, "UTF-32LE") == 0 ||
1308                              strcmp(codeset, "UTF-32LE-BOM") == 0){
1309                         input_f = UTF32_INPUT;
1310                         input_endian = ENDIAN_LITTLE;
1311 #endif
1312                     }
1313                     continue;
1314                 }
1315                 if (strcmp(long_option[i].name, "oc=") == 0){
1316                     for (i=0; i < 16 && SPACE < p[i] && p[i] < DEL; i++){
1317                         codeset[i] = nkf_toupper(p[i]);
1318                     }
1319                     codeset[i] = 0;
1320                     if(strcmp(codeset, "ISO-2022-JP") == 0){
1321                         output_conv = j_oconv;
1322                     }else if(strcmp(codeset, "X-ISO2022JP-CP932") == 0){
1323                         output_conv = j_oconv;
1324                         x0201_f = FALSE;
1325                         no_cp932ext_f = TRUE;
1326 #ifdef SHIFTJIS_CP932
1327                         cp51932_f = TRUE;
1328 #endif
1329 #ifdef UTF8_OUTPUT_ENABLE
1330                         ms_ucs_map_f = UCS_MAP_CP932;
1331 #endif
1332                     }else if(strcmp(codeset, "CP50220") == 0){
1333                         output_conv = j_oconv;
1334 #ifdef SHIFTJIS_CP932
1335                         cp51932_f = TRUE;
1336 #endif
1337 #ifdef UTF8_OUTPUT_ENABLE
1338                         ms_ucs_map_f = UCS_MAP_CP932;
1339 #endif
1340                     }else if(strcmp(codeset, "CP50221") == 0){
1341                         output_conv = j_oconv;
1342                         x0201_f = FALSE;
1343 #ifdef SHIFTJIS_CP932
1344                         cp51932_f = TRUE;
1345 #endif
1346 #ifdef UTF8_OUTPUT_ENABLE
1347                         ms_ucs_map_f = UCS_MAP_CP932;
1348 #endif
1349                     }else if(strcmp(codeset, "ISO-2022-JP-1") == 0){
1350                         output_conv = j_oconv;
1351 #ifdef X0212_ENABLE
1352                         x0212_f = TRUE;
1353 #endif
1354 #ifdef SHIFTJIS_CP932
1355                         cp51932_f = FALSE;
1356 #endif
1357                     }else if(strcmp(codeset, "ISO-2022-JP-3") == 0){
1358                         output_conv = j_oconv;
1359 #ifdef X0212_ENABLE
1360                         x0212_f = TRUE;
1361 #endif
1362                         x0213_f = TRUE;
1363 #ifdef SHIFTJIS_CP932
1364                         cp51932_f = FALSE;
1365 #endif
1366                     }else if(strcmp(codeset, "ISO-2022-JP-MS") == 0){
1367                         output_conv = j_oconv;
1368                         x0201_f = FALSE;
1369 #ifdef X0212_ENABLE
1370                         x0212_f = TRUE;
1371 #endif
1372 #ifdef SHIFTJIS_CP932
1373                         cp51932_f = FALSE;
1374 #endif
1375                     }else if(strcmp(codeset, "SHIFT_JIS") == 0){
1376                         output_conv = s_oconv;
1377                     }else if(strcmp(codeset, "WINDOWS-31J") == 0 ||
1378                              strcmp(codeset, "CSWINDOWS31J") == 0 ||
1379                              strcmp(codeset, "CP932") == 0 ||
1380                              strcmp(codeset, "MS932") == 0){
1381                         output_conv = s_oconv;
1382                         x0201_f = FALSE;
1383 #ifdef SHIFTJIS_CP932
1384                         cp51932_f = TRUE;
1385                         cp932inv_f = TRUE;
1386 #endif
1387 #ifdef UTF8_OUTPUT_ENABLE
1388                         ms_ucs_map_f = UCS_MAP_CP932;
1389 #endif
1390                     }else if(strcmp(codeset, "EUCJP") == 0 ||
1391                              strcmp(codeset, "EUC-JP") == 0){
1392                         output_conv = e_oconv;
1393                     }else if(strcmp(codeset, "CP51932") == 0){
1394                         output_conv = e_oconv;
1395                         x0201_f = FALSE;
1396 #ifdef SHIFTJIS_CP932
1397                         cp51932_f = TRUE;
1398 #endif
1399 #ifdef UTF8_OUTPUT_ENABLE
1400                         ms_ucs_map_f = UCS_MAP_CP932;
1401 #endif
1402                     }else if(strcmp(codeset, "EUC-JP-MS") == 0 ||
1403                              strcmp(codeset, "EUCJP-MS") == 0 ||
1404                              strcmp(codeset, "EUCJPMS") == 0){
1405                         output_conv = e_oconv;
1406                         x0201_f = FALSE;
1407 #ifdef X0212_ENABLE
1408                         x0212_f = TRUE;
1409 #endif
1410 #ifdef SHIFTJIS_CP932
1411                         cp51932_f = FALSE;
1412 #endif
1413 #ifdef UTF8_OUTPUT_ENABLE
1414                         ms_ucs_map_f = UCS_MAP_MS;
1415 #endif
1416                     }else if(strcmp(codeset, "EUC-JP-ASCII") == 0 ||
1417                              strcmp(codeset, "EUCJP-ASCII") == 0){
1418                         output_conv = e_oconv;
1419                         x0201_f = FALSE;
1420 #ifdef X0212_ENABLE
1421                         x0212_f = TRUE;
1422 #endif
1423 #ifdef SHIFTJIS_CP932
1424                         cp51932_f = FALSE;
1425 #endif
1426 #ifdef UTF8_OUTPUT_ENABLE
1427                         ms_ucs_map_f = UCS_MAP_ASCII;
1428 #endif
1429                     }else if(strcmp(codeset, "SHIFT_JISX0213") == 0 ||
1430                              strcmp(codeset, "SHIFT_JIS-2004") == 0){
1431                         output_conv = s_oconv;
1432                         x0213_f = TRUE;
1433 #ifdef SHIFTJIS_CP932
1434                         cp932inv_f = FALSE;
1435 #endif
1436                     }else if(strcmp(codeset, "EUC-JISX0213") == 0 ||
1437                              strcmp(codeset, "EUC-JIS-2004") == 0){
1438                         output_conv = e_oconv;
1439 #ifdef X0212_ENABLE
1440                         x0212_f = TRUE;
1441 #endif
1442                         x0213_f = TRUE;
1443 #ifdef SHIFTJIS_CP932
1444                         cp51932_f = FALSE;
1445 #endif
1446 #ifdef UTF8_OUTPUT_ENABLE
1447                     }else if(strcmp(codeset, "UTF-8") == 0){
1448                         output_conv = w_oconv;
1449                     }else if(strcmp(codeset, "UTF-8N") == 0){
1450                         output_conv = w_oconv;
1451                     }else if(strcmp(codeset, "UTF-8-BOM") == 0){
1452                         output_conv = w_oconv;
1453                         output_bom_f = TRUE;
1454                     }else if(strcmp(codeset, "UTF-16BE") == 0){
1455                         output_conv = w_oconv16;
1456                     }else if(strcmp(codeset, "UTF-16") == 0 ||
1457                              strcmp(codeset, "UTF-16BE-BOM") == 0){
1458                         output_conv = w_oconv16;
1459                         output_bom_f = TRUE;
1460                     }else if(strcmp(codeset, "UTF-16LE") == 0){
1461                         output_conv = w_oconv16;
1462                         output_endian = ENDIAN_LITTLE;
1463                     }else if(strcmp(codeset, "UTF-16LE-BOM") == 0){
1464                         output_conv = w_oconv16;
1465                         output_endian = ENDIAN_LITTLE;
1466                         output_bom_f = TRUE;
1467                     }else if(strcmp(codeset, "UTF-32") == 0 ||
1468                              strcmp(codeset, "UTF-32BE") == 0){
1469                         output_conv = w_oconv32;
1470                     }else if(strcmp(codeset, "UTF-32BE-BOM") == 0){
1471                         output_conv = w_oconv32;
1472                         output_bom_f = TRUE;
1473                     }else if(strcmp(codeset, "UTF-32LE") == 0){
1474                         output_conv = w_oconv32;
1475                         output_endian = ENDIAN_LITTLE;
1476                     }else if(strcmp(codeset, "UTF-32LE-BOM") == 0){
1477                         output_conv = w_oconv32;
1478                         output_endian = ENDIAN_LITTLE;
1479                         output_bom_f = TRUE;
1480 #endif
1481                     }
1482                     continue;
1483                 }
1484 #ifdef OVERWRITE
1485                 if (strcmp(long_option[i].name, "overwrite") == 0){
1486                     file_out_f = TRUE;
1487                     overwrite_f = TRUE;
1488                     preserve_time_f = TRUE;
1489                     continue;
1490                 }
1491                 if (strcmp(long_option[i].name, "overwrite=") == 0){
1492                     file_out_f = TRUE;
1493                     overwrite_f = TRUE;
1494                     preserve_time_f = TRUE;
1495                     backup_f = TRUE;
1496                     backup_suffix = malloc(strlen((char *) p) + 1);
1497                     strcpy(backup_suffix, (char *) p);
1498                     continue;
1499                 }
1500                 if (strcmp(long_option[i].name, "in-place") == 0){
1501                     file_out_f = TRUE;
1502                     overwrite_f = TRUE;
1503                     preserve_time_f = FALSE;
1504                     continue;
1505                 }
1506                 if (strcmp(long_option[i].name, "in-place=") == 0){
1507                     file_out_f = TRUE;
1508                     overwrite_f = TRUE;
1509                     preserve_time_f = FALSE;
1510                     backup_f = TRUE;
1511                     backup_suffix = malloc(strlen((char *) p) + 1);
1512                     strcpy(backup_suffix, (char *) p);
1513                     continue;
1514                 }
1515 #endif
1516 #ifdef INPUT_OPTION
1517                 if (strcmp(long_option[i].name, "cap-input") == 0){
1518                     cap_f = TRUE;
1519                     continue;
1520                 }
1521                 if (strcmp(long_option[i].name, "url-input") == 0){
1522                     url_f = TRUE;
1523                     continue;
1524                 }
1525 #endif
1526 #ifdef NUMCHAR_OPTION
1527                 if (strcmp(long_option[i].name, "numchar-input") == 0){
1528                     numchar_f = TRUE;
1529                     continue;
1530                 }
1531 #endif
1532 #ifdef CHECK_OPTION
1533                 if (strcmp(long_option[i].name, "no-output") == 0){
1534                     noout_f = TRUE;
1535                     continue;
1536                 }
1537                 if (strcmp(long_option[i].name, "debug") == 0){
1538                     debug_f = TRUE;
1539                     continue;
1540                 }
1541 #endif
1542                 if (strcmp(long_option[i].name, "cp932") == 0){
1543 #ifdef SHIFTJIS_CP932
1544                     cp51932_f = TRUE;
1545                     cp932inv_f = TRUE;
1546 #endif
1547 #ifdef UTF8_OUTPUT_ENABLE
1548                     ms_ucs_map_f = UCS_MAP_CP932;
1549 #endif
1550                     continue;
1551                 }
1552                 if (strcmp(long_option[i].name, "no-cp932") == 0){
1553 #ifdef SHIFTJIS_CP932
1554                     cp51932_f = FALSE;
1555                     cp932inv_f = FALSE;
1556 #endif
1557 #ifdef UTF8_OUTPUT_ENABLE
1558                     ms_ucs_map_f = UCS_MAP_ASCII;
1559 #endif
1560                     continue;
1561                 }
1562 #ifdef SHIFTJIS_CP932
1563                 if (strcmp(long_option[i].name, "cp932inv") == 0){
1564                     cp932inv_f = TRUE;
1565                     continue;
1566                 }
1567 #endif
1568
1569 #ifdef X0212_ENABLE
1570                 if (strcmp(long_option[i].name, "x0212") == 0){
1571                     x0212_f = TRUE;
1572                     continue;
1573                 }
1574 #endif
1575
1576 #ifdef EXEC_IO
1577                   if (strcmp(long_option[i].name, "exec-in") == 0){
1578                       exec_f = 1;
1579                       return;
1580                   }
1581                   if (strcmp(long_option[i].name, "exec-out") == 0){
1582                       exec_f = -1;
1583                       return;
1584                   }
1585 #endif
1586 #if defined(UTF8_OUTPUT_ENABLE) && defined(UTF8_INPUT_ENABLE)
1587                 if (strcmp(long_option[i].name, "no-cp932ext") == 0){
1588                     no_cp932ext_f = TRUE;
1589                     continue;
1590                 }
1591                 if (strcmp(long_option[i].name, "no-best-fit-chars") == 0){
1592                     no_best_fit_chars_f = TRUE;
1593                     continue;
1594                 }
1595                 if (strcmp(long_option[i].name, "fb-skip") == 0){
1596                     encode_fallback = NULL;
1597                     continue;
1598                 }
1599                 if (strcmp(long_option[i].name, "fb-html") == 0){
1600                     encode_fallback = encode_fallback_html;
1601                     continue;
1602                 }
1603                 if (strcmp(long_option[i].name, "fb-xml" ) == 0){
1604                     encode_fallback = encode_fallback_xml;
1605                     continue;
1606                 }
1607                 if (strcmp(long_option[i].name, "fb-java") == 0){
1608                     encode_fallback = encode_fallback_java;
1609                     continue;
1610                 }
1611                 if (strcmp(long_option[i].name, "fb-perl") == 0){
1612                     encode_fallback = encode_fallback_perl;
1613                     continue;
1614                 }
1615                 if (strcmp(long_option[i].name, "fb-subchar") == 0){
1616                     encode_fallback = encode_fallback_subchar;
1617                     continue;
1618                 }
1619                 if (strcmp(long_option[i].name, "fb-subchar=") == 0){
1620                     encode_fallback = encode_fallback_subchar;
1621                     unicode_subchar = 0;
1622                     if (p[0] != '0'){
1623                         /* decimal number */
1624                         for (i = 0; i < 7 && nkf_isdigit(p[i]); i++){
1625                             unicode_subchar *= 10;
1626                             unicode_subchar += hex2bin(p[i]);
1627                         }
1628                     }else if(p[1] == 'x' || p[1] == 'X'){
1629                         /* hexadecimal number */
1630                         for (i = 2; i < 8 && nkf_isxdigit(p[i]); i++){
1631                             unicode_subchar <<= 4;
1632                             unicode_subchar |= hex2bin(p[i]);
1633                         }
1634                     }else{
1635                         /* octal number */
1636                         for (i = 1; i < 8 && nkf_isoctal(p[i]); i++){
1637                             unicode_subchar *= 8;
1638                             unicode_subchar += hex2bin(p[i]);
1639                         }
1640                     }
1641                     w16e_conv(unicode_subchar, &i, &j);
1642                     unicode_subchar = i<<8 | j;
1643                     continue;
1644                 }
1645 #endif
1646 #ifdef UTF8_OUTPUT_ENABLE
1647                 if (strcmp(long_option[i].name, "ms-ucs-map") == 0){
1648                     ms_ucs_map_f = UCS_MAP_MS;
1649                     continue;
1650                 }
1651 #endif
1652 #ifdef UNICODE_NORMALIZATION
1653                 if (strcmp(long_option[i].name, "utf8mac-input") == 0){
1654                     input_f = UTF8_INPUT;
1655                     nfc_f = TRUE;
1656                     continue;
1657                 }
1658 #endif
1659                 if (strcmp(long_option[i].name, "prefix=") == 0){
1660                     if (nkf_isgraph(p[0])){
1661                         for (i = 1; nkf_isgraph(p[i]); i++){
1662                             prefix_table[p[i]] = p[0];
1663                         }
1664                     }
1665                     continue;
1666                 }
1667             }
1668             continue;
1669         case 'b':           /* buffered mode */
1670             unbuf_f = FALSE;
1671             continue;
1672         case 'u':           /* non bufferd mode */
1673             unbuf_f = TRUE;
1674             continue;
1675         case 't':           /* transparent mode */
1676             if (*cp=='1') {
1677                 /* alias of -t */
1678                 nop_f = TRUE;
1679                 *cp++;
1680             } else if (*cp=='2') {
1681                 /*
1682                  * -t with put/get
1683                  *
1684                  * nkf -t2MB hoge.bin | nkf -t2mB | diff -s - hoge.bin
1685                  *
1686                  */
1687                 nop_f = 2;
1688                 *cp++;
1689             } else
1690                 nop_f = TRUE;
1691             continue;
1692         case 'j':           /* JIS output */
1693         case 'n':
1694             output_conv = j_oconv;
1695             continue;
1696         case 'e':           /* AT&T EUC output */
1697             output_conv = e_oconv;
1698             continue;
1699         case 's':           /* SJIS output */
1700             output_conv = s_oconv;
1701             continue;
1702         case 'l':           /* ISO8859 Latin-1 support, no conversion */
1703             iso8859_f = TRUE;  /* Only compatible with ISO-2022-JP */
1704             input_f = LATIN1_INPUT;
1705             continue;
1706         case 'i':           /* Kanji IN ESC-$-@/B */
1707             if (*cp=='@'||*cp=='B') 
1708                 kanji_intro = *cp++;
1709             continue;
1710         case 'o':           /* ASCII IN ESC-(-J/B */
1711             if (*cp=='J'||*cp=='B'||*cp=='H') 
1712                 ascii_intro = *cp++;
1713             continue;
1714         case 'h':
1715             /*  
1716                 bit:1   katakana->hiragana
1717                 bit:2   hiragana->katakana
1718             */
1719             if ('9'>= *cp && *cp>='0') 
1720                 hira_f |= (*cp++ -'0');
1721             else 
1722                 hira_f |= 1;
1723             continue;
1724         case 'r':
1725             rot_f = TRUE;
1726             continue;
1727 #if defined(MSDOS) || defined(__OS2__) 
1728         case 'T':
1729             binmode_f = FALSE;
1730             continue;
1731 #endif
1732 #ifndef PERL_XS
1733         case 'V':
1734             version();
1735             exit(1);
1736             break;
1737         case 'v':
1738             usage();
1739             exit(1);
1740             break;
1741 #endif
1742 #ifdef UTF8_OUTPUT_ENABLE
1743         case 'w':           /* UTF-8 output */
1744             if (cp[0] == '8') {
1745                 output_conv = w_oconv; cp++;
1746                 if (cp[0] == '0'){
1747                     cp++;
1748                 } else {
1749                     output_bom_f = TRUE;
1750                 }
1751             } else {
1752                 if ('1'== cp[0] && '6'==cp[1]) {
1753                     output_conv = w_oconv16; cp+=2;
1754                 } else if ('3'== cp[0] && '2'==cp[1]) {
1755                     output_conv = w_oconv32; cp+=2;
1756                 } else {
1757                     output_conv = w_oconv;
1758                     continue;
1759                 }
1760                 if (cp[0]=='L') {
1761                     cp++;
1762                     output_endian = ENDIAN_LITTLE;
1763                 } else if (cp[0] == 'B') {
1764                     cp++;
1765                 } else {
1766                     continue;
1767                 }
1768                 if (cp[0] == '0'){
1769                     cp++;
1770                 } else {
1771                     output_bom_f = TRUE;
1772                 }
1773             }
1774             continue;
1775 #endif
1776 #ifdef UTF8_INPUT_ENABLE
1777         case 'W':           /* UTF input */
1778             if (cp[0] == '8') {
1779                 cp++;
1780                 input_f = UTF8_INPUT;
1781             }else{
1782                 if ('1'== cp[0] && '6'==cp[1]) {
1783                     cp += 2;
1784                     input_f = UTF16_INPUT;
1785                     input_endian = ENDIAN_BIG;
1786                 } else if ('3'== cp[0] && '2'==cp[1]) {
1787                     cp += 2;
1788                     input_f = UTF32_INPUT;
1789                     input_endian = ENDIAN_BIG;
1790                 } else {
1791                     input_f = UTF8_INPUT;
1792                     continue;
1793                 }
1794                 if (cp[0]=='L') {
1795                     cp++;
1796                     input_endian = ENDIAN_LITTLE;
1797                 } else if (cp[0] == 'B') {
1798                     cp++;
1799                 }
1800             }
1801             continue;
1802 #endif
1803         /* Input code assumption */
1804         case 'J':   /* JIS input */
1805             input_f = JIS_INPUT;
1806             continue;
1807         case 'E':   /* AT&T EUC input */
1808             input_f = EUC_INPUT;
1809             continue;
1810         case 'S':   /* MS Kanji input */
1811             input_f = SJIS_INPUT;
1812             if (x0201_f==NO_X0201) x0201_f=TRUE;
1813             continue;
1814         case 'Z':   /* Convert X0208 alphabet to asii */
1815             /*  bit:0   Convert X0208
1816                 bit:1   Convert Kankaku to one space
1817                 bit:2   Convert Kankaku to two spaces
1818                 bit:3   Convert HTML Entity
1819             */
1820             if ('9'>= *cp && *cp>='0') 
1821                 alpha_f |= 1<<(*cp++ -'0');
1822             else 
1823                 alpha_f |= TRUE;
1824             continue;
1825         case 'x':   /* Convert X0201 kana to X0208 or X0201 Conversion */
1826             x0201_f = FALSE;    /* No X0201->X0208 conversion */
1827             /* accept  X0201
1828                     ESC-(-I     in JIS, EUC, MS Kanji
1829                     SI/SO       in JIS, EUC, MS Kanji
1830                     SSO         in EUC, JIS, not in MS Kanji
1831                     MS Kanji (0xa0-0xdf) 
1832                output  X0201
1833                     ESC-(-I     in JIS (0x20-0x5f)
1834                     SSO         in EUC (0xa0-0xdf)
1835                     0xa0-0xd    in MS Kanji (0xa0-0xdf) 
1836             */
1837             continue;
1838         case 'X':   /* Assume X0201 kana */
1839             /* Default value is NO_X0201 for EUC/MS-Kanji mix */
1840             x0201_f = TRUE;
1841             continue;
1842         case 'F':   /* prserve new lines */
1843             fold_preserve_f = TRUE;
1844         case 'f':   /* folding -f60 or -f */
1845             fold_f = TRUE;
1846             fold_len = 0;
1847             while('0'<= *cp && *cp <='9') { /* we don't use atoi here */
1848                 fold_len *= 10;
1849                 fold_len += *cp++ - '0';
1850             }
1851             if (!(0<fold_len && fold_len<BUFSIZ)) 
1852                 fold_len = DEFAULT_FOLD;
1853             if (*cp=='-') {
1854                 fold_margin = 0;
1855                 cp++;
1856                 while('0'<= *cp && *cp <='9') { /* we don't use atoi here */
1857                     fold_margin *= 10;
1858                     fold_margin += *cp++ - '0';
1859                 }
1860             }
1861             continue;
1862         case 'm':   /* MIME support */
1863             /* mime_decode_f = TRUE; */ /* this has too large side effects... */
1864             if (*cp=='B'||*cp=='Q') {
1865                 mime_decode_mode = *cp++;
1866                 mimebuf_f = FIXED_MIME;
1867             } else if (*cp=='N') {
1868                 mime_f = TRUE; cp++;
1869             } else if (*cp=='S') {
1870                 mime_f = STRICT_MIME; cp++;
1871             } else if (*cp=='0') {
1872                 mime_decode_f = FALSE;
1873                 mime_f = FALSE; cp++;
1874             }
1875             continue;
1876         case 'M':   /* MIME output */
1877             if (*cp=='B') {
1878                 mimeout_mode = 'B';
1879                 mimeout_f = FIXED_MIME; cp++;
1880             } else if (*cp=='Q') {
1881                 mimeout_mode = 'Q';
1882                 mimeout_f = FIXED_MIME; cp++;
1883             } else {
1884                 mimeout_f = TRUE;
1885             }
1886             continue;
1887         case 'B':   /* Broken JIS support */
1888             /*  bit:0   no ESC JIS
1889                 bit:1   allow any x on ESC-(-x or ESC-$-x
1890                 bit:2   reset to ascii on NL
1891             */
1892             if ('9'>= *cp && *cp>='0') 
1893                 broken_f |= 1<<(*cp++ -'0');
1894             else 
1895                 broken_f |= TRUE;
1896             continue;
1897 #ifndef PERL_XS
1898         case 'O':/* for Output file */
1899             file_out_f = TRUE;
1900             continue;
1901 #endif
1902         case 'c':/* add cr code */
1903             crmode_f = CRLF;
1904             continue;
1905         case 'd':/* delete cr code */
1906             crmode_f = NL;
1907             continue;
1908         case 'I':   /* ISO-2022-JP output */
1909             iso2022jp_f = TRUE;
1910             continue;
1911         case 'L':  /* line mode */
1912             if (*cp=='u') {         /* unix */
1913                 crmode_f = NL; cp++;
1914             } else if (*cp=='m') { /* mac */
1915                 crmode_f = CR; cp++;
1916             } else if (*cp=='w') { /* windows */
1917                 crmode_f = CRLF; cp++;
1918             } else if (*cp=='0') { /* no conversion  */
1919                 crmode_f = 0; cp++;
1920             }
1921             continue;
1922         case 'g':
1923 #ifndef PERL_XS
1924             guess_f = TRUE;
1925 #endif
1926             continue;
1927         case ' ':    
1928         /* module muliple options in a string are allowed for Perl moudle  */
1929             while(*cp && *cp++!='-');
1930             continue;
1931         default:
1932             /* bogus option but ignored */
1933             continue;
1934         }
1935     }
1936 }
1937
1938 struct input_code * find_inputcode_byfunc(nkf_char (*iconv_func)(nkf_char c2,nkf_char c1,nkf_char c0))
1939 {
1940     if (iconv_func){
1941         struct input_code *p = input_code_list;
1942         while (p->name){
1943             if (iconv_func == p->iconv_func){
1944                 return p;
1945             }
1946             p++;
1947         }
1948     }
1949     return 0;
1950 }
1951
1952 void set_iconv(nkf_char f, nkf_char (*iconv_func)(nkf_char c2,nkf_char c1,nkf_char c0))
1953 {
1954 #ifdef INPUT_CODE_FIX
1955     if (f || !input_f)
1956 #endif
1957         if (estab_f != f){
1958             estab_f = f;
1959         }
1960
1961     if (iconv_func
1962 #ifdef INPUT_CODE_FIX
1963         && (f == -TRUE || !input_f) /* -TRUE means "FORCE" */
1964 #endif
1965         ){
1966         iconv = iconv_func;
1967     }
1968 #ifdef CHECK_OPTION
1969     if (estab_f && iconv_for_check != iconv){
1970         struct input_code *p = find_inputcode_byfunc(iconv);
1971         if (p){
1972             set_input_codename(p->name);
1973             debug(input_codename);
1974         }
1975         iconv_for_check = iconv;
1976     }
1977 #endif
1978 }
1979
1980 #define SCORE_L2       (1)                   /* \e$BBh\e(B2\e$B?e=`4A;z\e(B */
1981 #define SCORE_KANA     (SCORE_L2 << 1)       /* \e$B$$$o$f$kH>3Q%+%J\e(B */
1982 #define SCORE_DEPEND   (SCORE_KANA << 1)     /* \e$B5!<o0MB8J8;z\e(B */
1983 #ifdef SHIFTJIS_CP932
1984 #define SCORE_CP932    (SCORE_DEPEND << 1)   /* CP932 \e$B$K$h$kFI$_49$(\e(B */
1985 #define SCORE_NO_EXIST (SCORE_CP932 << 1)    /* \e$BB8:_$7$J$$J8;z\e(B */
1986 #else
1987 #define SCORE_NO_EXIST (SCORE_DEPEND << 1)   /* \e$BB8:_$7$J$$J8;z\e(B */
1988 #endif
1989 #define SCORE_iMIME    (SCORE_NO_EXIST << 1) /* MIME \e$B$K$h$k;XDj\e(B */
1990 #define SCORE_ERROR    (SCORE_iMIME << 1) /* \e$B%(%i!<\e(B */
1991
1992 #define SCORE_INIT (SCORE_iMIME)
1993
1994 const nkf_char score_table_A0[] = {
1995     0, 0, 0, 0,
1996     0, 0, 0, 0,
1997     0, SCORE_DEPEND, SCORE_DEPEND, SCORE_DEPEND,
1998     SCORE_DEPEND, SCORE_DEPEND, SCORE_DEPEND, SCORE_NO_EXIST,
1999 };
2000
2001 const nkf_char score_table_F0[] = {
2002     SCORE_L2, SCORE_L2, SCORE_L2, SCORE_L2,
2003     SCORE_L2, SCORE_DEPEND, SCORE_NO_EXIST, SCORE_NO_EXIST,
2004     SCORE_DEPEND, SCORE_DEPEND, SCORE_DEPEND, SCORE_DEPEND,
2005     SCORE_DEPEND, SCORE_NO_EXIST, SCORE_NO_EXIST, SCORE_ERROR,
2006 };
2007
2008 void set_code_score(struct input_code *ptr, nkf_char score)
2009 {
2010     if (ptr){
2011         ptr->score |= score;
2012     }
2013 }
2014
2015 void clr_code_score(struct input_code *ptr, nkf_char score)
2016 {
2017     if (ptr){
2018         ptr->score &= ~score;
2019     }
2020 }
2021
2022 void code_score(struct input_code *ptr)
2023 {
2024     nkf_char c2 = ptr->buf[0];
2025 #ifdef UTF8_OUTPUT_ENABLE
2026     nkf_char c1 = ptr->buf[1];
2027 #endif
2028     if (c2 < 0){
2029         set_code_score(ptr, SCORE_ERROR);
2030     }else if (c2 == SSO){
2031         set_code_score(ptr, SCORE_KANA);
2032 #ifdef UTF8_OUTPUT_ENABLE
2033     }else if (!e2w_conv(c2, c1)){
2034         set_code_score(ptr, SCORE_NO_EXIST);
2035 #endif
2036     }else if ((c2 & 0x70) == 0x20){
2037         set_code_score(ptr, score_table_A0[c2 & 0x0f]);
2038     }else if ((c2 & 0x70) == 0x70){
2039         set_code_score(ptr, score_table_F0[c2 & 0x0f]);
2040     }else if ((c2 & 0x70) >= 0x50){
2041         set_code_score(ptr, SCORE_L2);
2042     }
2043 }
2044
2045 void status_disable(struct input_code *ptr)
2046 {
2047     ptr->stat = -1;
2048     ptr->buf[0] = -1;
2049     code_score(ptr);
2050     if (iconv == ptr->iconv_func) set_iconv(FALSE, 0);
2051 }
2052
2053 void status_push_ch(struct input_code *ptr, nkf_char c)
2054 {
2055     ptr->buf[ptr->index++] = c;
2056 }
2057
2058 void status_clear(struct input_code *ptr)
2059 {
2060     ptr->stat = 0;
2061     ptr->index = 0;
2062 }
2063
2064 void status_reset(struct input_code *ptr)
2065 {
2066     status_clear(ptr);
2067     ptr->score = SCORE_INIT;
2068 }
2069
2070 void status_reinit(struct input_code *ptr)
2071 {
2072     status_reset(ptr);
2073     ptr->_file_stat = 0;
2074 }
2075
2076 void status_check(struct input_code *ptr, nkf_char c)
2077 {
2078     if (c <= DEL && estab_f){
2079         status_reset(ptr);
2080     }
2081 }
2082
2083 void s_status(struct input_code *ptr, nkf_char c)
2084 {
2085     switch(ptr->stat){
2086       case -1:
2087           status_check(ptr, c);
2088           break;
2089       case 0:
2090           if (c <= DEL){
2091               break;
2092 #ifdef NUMCHAR_OPTION
2093           }else if (is_unicode_capsule(c)){
2094               break;
2095 #endif
2096           }else if (0xa1 <= c && c <= 0xdf){
2097               status_push_ch(ptr, SSO);
2098               status_push_ch(ptr, c);
2099               code_score(ptr);
2100               status_clear(ptr);
2101           }else if ((0x81 <= c && c < 0xa0) || (0xe0 <= c && c <= 0xef)){
2102               ptr->stat = 1;
2103               status_push_ch(ptr, c);
2104 #ifdef SHIFTJIS_CP932
2105           }else if (cp51932_f
2106                     && is_ibmext_in_sjis(c)){
2107               ptr->stat = 2;
2108               status_push_ch(ptr, c);
2109 #endif /* SHIFTJIS_CP932 */
2110 #ifdef X0212_ENABLE
2111           }else if (x0212_f && 0xf0 <= c && c <= 0xfc){
2112               ptr->stat = 1;
2113               status_push_ch(ptr, c);
2114 #endif /* X0212_ENABLE */
2115           }else{
2116               status_disable(ptr);
2117           }
2118           break;
2119       case 1:
2120           if ((0x40 <= c && c <= 0x7e) || (0x80 <= c && c <= 0xfc)){
2121               status_push_ch(ptr, c);
2122               s2e_conv(ptr->buf[0], ptr->buf[1], &ptr->buf[0], &ptr->buf[1]);
2123               code_score(ptr);
2124               status_clear(ptr);
2125           }else{
2126               status_disable(ptr);
2127           }
2128           break;
2129       case 2:
2130 #ifdef SHIFTJIS_CP932
2131           if ((0x40 <= c && c <= 0x7e) || (0x80 <= c && c <= 0xfc)){
2132               status_push_ch(ptr, c);
2133               if (s2e_conv(ptr->buf[0], ptr->buf[1], &ptr->buf[0], &ptr->buf[1]) == 0){
2134                   set_code_score(ptr, SCORE_CP932);
2135                   status_clear(ptr);
2136                   break;
2137               }
2138           }
2139 #endif /* SHIFTJIS_CP932 */
2140 #ifndef X0212_ENABLE
2141           status_disable(ptr);
2142 #endif
2143           break;
2144     }
2145 }
2146
2147 void e_status(struct input_code *ptr, nkf_char c)
2148 {
2149     switch (ptr->stat){
2150       case -1:
2151           status_check(ptr, c);
2152           break;
2153       case 0:
2154           if (c <= DEL){
2155               break;
2156 #ifdef NUMCHAR_OPTION
2157           }else if (is_unicode_capsule(c)){
2158               break;
2159 #endif
2160           }else if (SSO == c || (0xa1 <= c && c <= 0xfe)){
2161               ptr->stat = 1;
2162               status_push_ch(ptr, c);
2163 #ifdef X0212_ENABLE
2164           }else if (0x8f == c){
2165               ptr->stat = 2;
2166               status_push_ch(ptr, c);
2167 #endif /* X0212_ENABLE */
2168           }else{
2169               status_disable(ptr);
2170           }
2171           break;
2172       case 1:
2173           if (0xa1 <= c && c <= 0xfe){
2174               status_push_ch(ptr, c);
2175               code_score(ptr);
2176               status_clear(ptr);
2177           }else{
2178               status_disable(ptr);
2179           }
2180           break;
2181 #ifdef X0212_ENABLE
2182       case 2:
2183           if (0xa1 <= c && c <= 0xfe){
2184               ptr->stat = 1;
2185               status_push_ch(ptr, c);
2186           }else{
2187               status_disable(ptr);
2188           }
2189 #endif /* X0212_ENABLE */
2190     }
2191 }
2192
2193 #ifdef UTF8_INPUT_ENABLE
2194 void w_status(struct input_code *ptr, nkf_char c)
2195 {
2196     switch (ptr->stat){
2197       case -1:
2198           status_check(ptr, c);
2199           break;
2200       case 0:
2201           if (c <= DEL){
2202               break;
2203 #ifdef NUMCHAR_OPTION
2204           }else if (is_unicode_capsule(c)){
2205               break;
2206 #endif
2207           }else if (0xc0 <= c && c <= 0xdf){
2208               ptr->stat = 1;
2209               status_push_ch(ptr, c);
2210           }else if (0xe0 <= c && c <= 0xef){
2211               ptr->stat = 2;
2212               status_push_ch(ptr, c);
2213           }else if (0xf0 <= c && c <= 0xf4){
2214               ptr->stat = 3;
2215               status_push_ch(ptr, c);
2216           }else{
2217               status_disable(ptr);
2218           }
2219           break;
2220       case 1:
2221       case 2:
2222           if (0x80 <= c && c <= 0xbf){
2223               status_push_ch(ptr, c);
2224               if (ptr->index > ptr->stat){
2225                   int bom = (ptr->buf[0] == 0xef && ptr->buf[1] == 0xbb
2226                              && ptr->buf[2] == 0xbf);
2227                   w2e_conv(ptr->buf[0], ptr->buf[1], ptr->buf[2],
2228                            &ptr->buf[0], &ptr->buf[1]);
2229                   if (!bom){
2230                       code_score(ptr);
2231                   }
2232                   status_clear(ptr);
2233               }
2234           }else{
2235               status_disable(ptr);
2236           }
2237           break;
2238       case 3:
2239         if (0x80 <= c && c <= 0xbf){
2240             if (ptr->index < ptr->stat){
2241                 status_push_ch(ptr, c);
2242             } else {
2243                 status_clear(ptr);
2244             }
2245           }else{
2246               status_disable(ptr);
2247           }
2248           break;
2249     }
2250 }
2251 #endif
2252
2253 void code_status(nkf_char c)
2254 {
2255     int action_flag = 1;
2256     struct input_code *result = 0;
2257     struct input_code *p = input_code_list;
2258     while (p->name){
2259         if (!p->status_func) {
2260             ++p;
2261             continue;
2262         }
2263         if (!p->status_func)
2264             continue;
2265         (p->status_func)(p, c);
2266         if (p->stat > 0){
2267             action_flag = 0;
2268         }else if(p->stat == 0){
2269             if (result){
2270                 action_flag = 0;
2271             }else{
2272                 result = p;
2273             }
2274         }
2275         ++p;
2276     }
2277
2278     if (action_flag){
2279         if (result && !estab_f){
2280             set_iconv(TRUE, result->iconv_func);
2281         }else if (c <= DEL){
2282             struct input_code *ptr = input_code_list;
2283             while (ptr->name){
2284                 status_reset(ptr);
2285                 ++ptr;
2286             }
2287         }
2288     }
2289 }
2290
2291 #ifndef WIN32DLL
2292 nkf_char std_getc(FILE *f)
2293 {
2294     if (std_gc_ndx){
2295         return std_gc_buf[--std_gc_ndx];
2296     }
2297     return getc(f);
2298 }
2299 #endif /*WIN32DLL*/
2300
2301 nkf_char std_ungetc(nkf_char c, FILE *f)
2302 {
2303     if (std_gc_ndx == STD_GC_BUFSIZE){
2304         return EOF;
2305     }
2306     std_gc_buf[std_gc_ndx++] = c;
2307     return c;
2308 }
2309
2310 #ifndef WIN32DLL
2311 void std_putc(nkf_char c)
2312 {
2313     if(c!=EOF)
2314       putchar(c);
2315 }
2316 #endif /*WIN32DLL*/
2317
2318 #if !defined(PERL_XS) && !defined(WIN32DLL)
2319 nkf_char noconvert(FILE *f)
2320 {
2321     nkf_char    c;
2322
2323     if (nop_f == 2)
2324         module_connection();
2325     while ((c = (*i_getc)(f)) != EOF)
2326       (*o_putc)(c);
2327     (*o_putc)(EOF);
2328     return 1;
2329 }
2330 #endif
2331
2332 void module_connection(void)
2333 {
2334     oconv = output_conv; 
2335     o_putc = std_putc;
2336
2337     /* replace continucation module, from output side */
2338
2339     /* output redicrection */
2340 #ifdef CHECK_OPTION
2341     if (noout_f || guess_f){
2342         o_putc = no_putc;
2343     }
2344 #endif
2345     if (mimeout_f) {
2346         o_mputc = o_putc;
2347         o_putc = mime_putc;
2348         if (mimeout_f == TRUE) {
2349             o_base64conv = oconv; oconv = base64_conv;
2350         }
2351         /* base64_count = 0; */
2352     }
2353
2354     if (crmode_f) {
2355         o_crconv = oconv; oconv = cr_conv;
2356     }
2357     if (rot_f) {
2358         o_rot_conv = oconv; oconv = rot_conv;
2359     }
2360     if (iso2022jp_f) {
2361         o_iso2022jp_check_conv = oconv; oconv = iso2022jp_check_conv;
2362     }
2363     if (hira_f) {
2364         o_hira_conv = oconv; oconv = hira_conv;
2365     }
2366     if (fold_f) {
2367         o_fconv = oconv; oconv = fold_conv;
2368         f_line = 0;
2369     }
2370     if (alpha_f || x0201_f) {
2371         o_zconv = oconv; oconv = z_conv;
2372     }
2373
2374     i_getc = std_getc;
2375     i_ungetc = std_ungetc;
2376     /* input redicrection */
2377 #ifdef INPUT_OPTION
2378     if (cap_f){
2379         i_cgetc = i_getc; i_getc = cap_getc;
2380         i_cungetc = i_ungetc; i_ungetc= cap_ungetc;
2381     }
2382     if (url_f){
2383         i_ugetc = i_getc; i_getc = url_getc;
2384         i_uungetc = i_ungetc; i_ungetc= url_ungetc;
2385     }
2386 #endif
2387 #ifdef NUMCHAR_OPTION
2388     if (numchar_f){
2389         i_ngetc = i_getc; i_getc = numchar_getc;
2390         i_nungetc = i_ungetc; i_ungetc= numchar_ungetc;
2391     }
2392 #endif
2393 #ifdef UNICODE_NORMALIZATION
2394     if (nfc_f && input_f == UTF8_INPUT){
2395         i_nfc_getc = i_getc; i_getc = nfc_getc;
2396         i_nfc_ungetc = i_ungetc; i_ungetc= nfc_ungetc;
2397     }
2398 #endif
2399     if (mime_f && mimebuf_f==FIXED_MIME) {
2400         i_mgetc = i_getc; i_getc = mime_getc;
2401         i_mungetc = i_ungetc; i_ungetc = mime_ungetc;
2402     }
2403     if (broken_f & 1) {
2404         i_bgetc = i_getc; i_getc = broken_getc;
2405         i_bungetc = i_ungetc; i_ungetc = broken_ungetc;
2406     }
2407     if (input_f == JIS_INPUT || input_f == EUC_INPUT || input_f == LATIN1_INPUT) {
2408         set_iconv(-TRUE, e_iconv);
2409     } else if (input_f == SJIS_INPUT) {
2410         set_iconv(-TRUE, s_iconv);
2411 #ifdef UTF8_INPUT_ENABLE
2412     } else if (input_f == UTF8_INPUT) {
2413         set_iconv(-TRUE, w_iconv);
2414     } else if (input_f == UTF16_INPUT) {
2415         set_iconv(-TRUE, w_iconv16);
2416     } else if (input_f == UTF32_INPUT) {
2417         set_iconv(-TRUE, w_iconv32);
2418 #endif
2419     } else {
2420         set_iconv(FALSE, e_iconv);
2421     }
2422
2423     {
2424         struct input_code *p = input_code_list;
2425         while (p->name){
2426             status_reinit(p++);
2427         }
2428     }
2429 }
2430
2431 /*
2432  * Check and Ignore BOM
2433  */
2434 void check_bom(FILE *f)
2435 {
2436     int c2;
2437     switch(c2 = (*i_getc)(f)){
2438     case 0x00:
2439         if((c2 = (*i_getc)(f)) == 0x00){
2440             if((c2 = (*i_getc)(f)) == 0xFE){
2441                 if((c2 = (*i_getc)(f)) == 0xFF){
2442                     if(!input_f){
2443                         set_iconv(TRUE, w_iconv32);
2444                     }
2445                     if (iconv == w_iconv32) {
2446                         input_endian = ENDIAN_BIG;
2447                         return;
2448                     }
2449                     (*i_ungetc)(0xFF,f);
2450                 }else (*i_ungetc)(c2,f);
2451                 (*i_ungetc)(0xFE,f);
2452             }else if(c2 == 0xFF){
2453                 if((c2 = (*i_getc)(f)) == 0xFE){
2454                     if(!input_f){
2455                         set_iconv(TRUE, w_iconv32);
2456                     }
2457                     if (iconv == w_iconv32) {
2458                         input_endian = ENDIAN_2143;
2459                         return;
2460                     }
2461                     (*i_ungetc)(0xFF,f);
2462                 }else (*i_ungetc)(c2,f);
2463                 (*i_ungetc)(0xFF,f);
2464             }else (*i_ungetc)(c2,f);
2465             (*i_ungetc)(0x00,f);
2466         }else (*i_ungetc)(c2,f);
2467         (*i_ungetc)(0x00,f);
2468         break;
2469     case 0xEF:
2470         if((c2 = (*i_getc)(f)) == 0xBB){
2471             if((c2 = (*i_getc)(f)) == 0xBF){
2472                 if(!input_f){
2473                     set_iconv(TRUE, w_iconv);
2474                 }
2475                 if (iconv == w_iconv) {
2476                     return;
2477                 }
2478                 (*i_ungetc)(0xBF,f);
2479             }else (*i_ungetc)(c2,f);
2480             (*i_ungetc)(0xBB,f);
2481         }else (*i_ungetc)(c2,f);
2482         (*i_ungetc)(0xEF,f);
2483         break;
2484     case 0xFE:
2485         if((c2 = (*i_getc)(f)) == 0xFF){
2486             if((c2 = (*i_getc)(f)) == 0x00){
2487                 if((c2 = (*i_getc)(f)) == 0x00){
2488                     if(!input_f){
2489                         set_iconv(TRUE, w_iconv32);
2490                     }
2491                     if (iconv == w_iconv32) {
2492                         input_endian = ENDIAN_3412;
2493                         return;
2494                     }
2495                     (*i_ungetc)(0x00,f);
2496                 }else (*i_ungetc)(c2,f);
2497                 (*i_ungetc)(0x00,f);
2498             }else (*i_ungetc)(c2,f);
2499             if(!input_f){
2500                 set_iconv(TRUE, w_iconv16);
2501             }
2502             if (iconv == w_iconv16) {
2503                 input_endian = ENDIAN_BIG;
2504                 return;
2505             }
2506             (*i_ungetc)(0xFF,f);
2507         }else (*i_ungetc)(c2,f);
2508         (*i_ungetc)(0xFE,f);
2509         break;
2510     case 0xFF:
2511         if((c2 = (*i_getc)(f)) == 0xFE){
2512             if((c2 = (*i_getc)(f)) == 0x00){
2513                 if((c2 = (*i_getc)(f)) == 0x00){
2514                     if(!input_f){
2515                         set_iconv(TRUE, w_iconv32);
2516                     }
2517                     if (iconv == w_iconv32) {
2518                         input_endian = ENDIAN_LITTLE;
2519                         return;
2520                     }
2521                     (*i_ungetc)(0x00,f);
2522                 }else (*i_ungetc)(c2,f);
2523                 (*i_ungetc)(0x00,f);
2524             }else (*i_ungetc)(c2,f);
2525             if(!input_f){
2526                 set_iconv(TRUE, w_iconv16);
2527             }
2528             if (iconv == w_iconv16) {
2529                 input_endian = ENDIAN_LITTLE;
2530                 return;
2531             }
2532             (*i_ungetc)(0xFE,f);
2533         }else (*i_ungetc)(c2,f);
2534         (*i_ungetc)(0xFF,f);
2535         break;
2536     default:
2537         (*i_ungetc)(c2,f);
2538         break;
2539     }
2540 }
2541
2542 /*
2543    Conversion main loop. Code detection only. 
2544  */
2545
2546 nkf_char kanji_convert(FILE *f)
2547 {
2548     nkf_char    c3, c2=0, c1, c0=0;
2549     int is_8bit = FALSE;
2550
2551     if(input_f == SJIS_INPUT || input_f == EUC_INPUT
2552 #ifdef UTF8_INPUT_ENABLE
2553        || input_f == UTF8_INPUT || input_f == UTF16_INPUT
2554 #endif
2555       ){
2556         is_8bit = TRUE;
2557     }
2558
2559     input_mode = ASCII;
2560     output_mode = ASCII;
2561     shift_mode = FALSE;
2562
2563 #define NEXT continue      /* no output, get next */
2564 #define SEND ;             /* output c1 and c2, get next */
2565 #define LAST break         /* end of loop, go closing  */
2566
2567     module_connection();
2568     check_bom(f);
2569
2570     while ((c1 = (*i_getc)(f)) != EOF) {
2571 #ifdef INPUT_CODE_FIX
2572         if (!input_f)
2573 #endif
2574             code_status(c1);
2575         if (c2) {
2576             /* second byte */
2577             if (c2 > DEL) {
2578                 /* in case of 8th bit is on */
2579                 if (!estab_f&&!mime_decode_mode) {
2580                     /* in case of not established yet */
2581                     /* It is still ambiguious */
2582                     if (h_conv(f, c2, c1)==EOF) 
2583                         LAST;
2584                     else 
2585                         c2 = 0;
2586                     NEXT;
2587                 } else {
2588                     /* in case of already established */
2589                     if (c1 < AT && !(X0208 && 0x80 <= c2 && c2 <= 0x92)) {
2590                         /* ignore bogus code and not CP5022x UCD */
2591                         c2 = 0;
2592                         NEXT;
2593                     } else {
2594                         SEND;
2595                     }
2596                 }
2597             } else
2598                 /* second byte, 7 bit code */
2599                 /* it might be kanji shitfted */
2600                 if ((c1 == DEL) || (c1 <= SPACE)) {
2601                     /* ignore bogus first code */
2602                     c2 = 0;
2603                     NEXT;
2604                 } else
2605                     SEND;
2606         } else {
2607             /* first byte */
2608 #ifdef UTF8_INPUT_ENABLE
2609             if (iconv == w_iconv16) {
2610                 if (input_endian == ENDIAN_BIG) {
2611                     c2 = c1;
2612                     if ((c1 = (*i_getc)(f)) != EOF) {
2613                         if (0xD8 <= c2 && c2 <= 0xDB) {
2614                             if ((c0 = (*i_getc)(f)) != EOF) {
2615                                 c0 <<= 8;
2616                                 if ((c3 = (*i_getc)(f)) != EOF) {
2617                                     c0 |= c3;
2618                                 } else c2 = EOF;
2619                             } else c2 = EOF;
2620                         }
2621                     } else c2 = EOF;
2622                 } else {
2623                     if ((c2 = (*i_getc)(f)) != EOF) {
2624                         if (0xD8 <= c2 && c2 <= 0xDB) {
2625                             if ((c3 = (*i_getc)(f)) != EOF) {
2626                                 if ((c0 = (*i_getc)(f)) != EOF) {
2627                                     c0 <<= 8;
2628                                     c0 |= c3;
2629                                 } else c2 = EOF;
2630                             } else c2 = EOF;
2631                         }
2632                     } else c2 = EOF;
2633                 }
2634                 SEND;
2635             } else if(iconv == w_iconv32){
2636                 int c3 = c1;
2637                 if((c2 = (*i_getc)(f)) != EOF &&
2638                    (c1 = (*i_getc)(f)) != EOF &&
2639                    (c0 = (*i_getc)(f)) != EOF){
2640                     switch(input_endian){
2641                     case ENDIAN_BIG:
2642                         c1 = (c2&0xFF)<<16 | (c1&0xFF)<<8 | (c0&0xFF);
2643                         break;
2644                     case ENDIAN_LITTLE:
2645                         c1 = (c3&0xFF) | (c2&0xFF)<<8 | (c1&0xFF)<<16;
2646                         break;
2647                     case ENDIAN_2143:
2648                         c1 = (c3&0xFF)<<16 | (c1&0xFF) | (c0&0xFF)<<8;
2649                         break;
2650                     case ENDIAN_3412:
2651                         c1 = (c3&0xFF)<<8 | (c2&0xFF) | (c0&0xFF)<<16;
2652                         break;
2653                     }
2654                     c2 = 0;
2655                 }else{
2656                     c2 = EOF;
2657                 }
2658                 SEND;
2659             } else
2660 #endif
2661 #ifdef NUMCHAR_OPTION
2662             if (is_unicode_capsule(c1)){
2663                 SEND;
2664             } else
2665 #endif
2666             if (c1 > DEL) {
2667                 /* 8 bit code */
2668                 if (!estab_f && !iso8859_f) {
2669                     /* not established yet */
2670                     c2 = c1;
2671                     NEXT;
2672                 } else { /* estab_f==TRUE */
2673                     if (iso8859_f) {
2674                         c2 = ISO8859_1;
2675                         c1 &= 0x7f;
2676                         SEND;
2677                     } else if (SSP<=c1 && c1<0xe0 && iconv == s_iconv) {
2678                         /* SJIS X0201 Case... */
2679                         if(iso2022jp_f && x0201_f==NO_X0201) {
2680                             (*oconv)(GETA1, GETA2);
2681                             NEXT;
2682                         } else {
2683                             c2 = X0201;
2684                             c1 &= 0x7f;
2685                             SEND;
2686                         }
2687                     } else if (c1==SSO && iconv != s_iconv) {
2688                         /* EUC X0201 Case */
2689                         c1 = (*i_getc)(f);  /* skip SSO */
2690                         code_status(c1);
2691                         if (SSP<=c1 && c1<0xe0) {
2692                             if(iso2022jp_f &&  x0201_f==NO_X0201) {
2693                                 (*oconv)(GETA1, GETA2);
2694                                 NEXT;
2695                             } else {
2696                                 c2 = X0201;
2697                                 c1 &= 0x7f;
2698                                 SEND;
2699                             }
2700                         } else  { /* bogus code, skip SSO and one byte */
2701                             NEXT;
2702                         }
2703                     } else {
2704                        /* already established */
2705                        c2 = c1;
2706                        NEXT;
2707                     }
2708                 }
2709             } else if ((c1 > SPACE) && (c1 != DEL)) {
2710                 /* in case of Roman characters */
2711                 if (shift_mode) { 
2712                     /* output 1 shifted byte */
2713                     if (iso8859_f) {
2714                         c2 = ISO8859_1;
2715                         SEND;
2716                     } else if (SPACE<=c1 && c1<(0xe0&0x7f) ){
2717                       /* output 1 shifted byte */
2718                         if(iso2022jp_f && x0201_f==NO_X0201) {
2719                             (*oconv)(GETA1, GETA2);
2720                             NEXT;
2721                         } else {
2722                             c2 = X0201;
2723                             SEND;
2724                         }
2725                     } else {
2726                         /* look like bogus code */
2727                         NEXT;
2728                     }
2729                 } else if (input_mode == X0208 || input_mode == X0212 ||
2730                            input_mode == X0213_1 || input_mode == X0213_2) {
2731                     /* in case of Kanji shifted */
2732                     c2 = c1;
2733                     NEXT;
2734                 } else if (c1 == '=' && mime_f && !mime_decode_mode ) {
2735                     /* Check MIME code */
2736                     if ((c1 = (*i_getc)(f)) == EOF) {
2737                         (*oconv)(0, '=');
2738                         LAST;
2739                     } else if (c1 == '?') {
2740                         /* =? is mime conversion start sequence */
2741                         if(mime_f == STRICT_MIME) {
2742                             /* check in real detail */
2743                             if (mime_begin_strict(f) == EOF) 
2744                                 LAST;
2745                             else
2746                                 NEXT;
2747                         } else if (mime_begin(f) == EOF) 
2748                             LAST;
2749                         else
2750                             NEXT;
2751                     } else {
2752                         (*oconv)(0, '=');
2753                         (*i_ungetc)(c1,f);
2754                         NEXT;
2755                     }
2756                 } else {
2757                     /* normal ASCII code */ 
2758                     SEND;
2759                 }
2760             } else if (!is_8bit && c1 == SI) {
2761                 shift_mode = FALSE; 
2762                 NEXT;
2763             } else if (!is_8bit && c1 == SO) {
2764                 shift_mode = TRUE; 
2765                 NEXT;
2766             } else if (!is_8bit && c1 == ESC ) {
2767                 if ((c1 = (*i_getc)(f)) == EOF) {
2768                     /*  (*oconv)(0, ESC); don't send bogus code */
2769                     LAST;
2770                 } else if (c1 == '$') {
2771                     if ((c1 = (*i_getc)(f)) == EOF) {
2772                         /*
2773                         (*oconv)(0, ESC); don't send bogus code 
2774                         (*oconv)(0, '$'); */
2775                         LAST;
2776                     } else if (c1 == '@'|| c1 == 'B') {
2777                         /* This is kanji introduction */
2778                         input_mode = X0208;
2779                         shift_mode = FALSE;
2780                         set_input_codename("ISO-2022-JP");
2781 #ifdef CHECK_OPTION
2782                         debug(input_codename);
2783 #endif
2784                         NEXT;
2785                     } else if (c1 == '(') {
2786                         if ((c1 = (*i_getc)(f)) == EOF) {
2787                             /* don't send bogus code 
2788                             (*oconv)(0, ESC);
2789                             (*oconv)(0, '$');
2790                             (*oconv)(0, '(');
2791                                 */
2792                             LAST;
2793                         } else if (c1 == '@'|| c1 == 'B') {
2794                             /* This is kanji introduction */
2795                             input_mode = X0208;
2796                             shift_mode = FALSE;
2797                             NEXT;
2798 #ifdef X0212_ENABLE
2799                         } else if (c1 == 'D'){
2800                             input_mode = X0212;
2801                             shift_mode = FALSE;
2802                             NEXT;
2803 #endif /* X0212_ENABLE */
2804                         } else if (c1 == (X0213_1&0x7F)){
2805                             input_mode = X0213_1;
2806                             shift_mode = FALSE;
2807                             NEXT;
2808                         } else if (c1 == (X0213_2&0x7F)){
2809                             input_mode = X0213_2;
2810                             shift_mode = FALSE;
2811                             NEXT;
2812                         } else {
2813                             /* could be some special code */
2814                             (*oconv)(0, ESC);
2815                             (*oconv)(0, '$');
2816                             (*oconv)(0, '(');
2817                             (*oconv)(0, c1);
2818                             NEXT;
2819                         }
2820                     } else if (broken_f&0x2) {
2821                         /* accept any ESC-(-x as broken code ... */
2822                         input_mode = X0208;
2823                         shift_mode = FALSE;
2824                         NEXT;
2825                     } else {
2826                         (*oconv)(0, ESC);
2827                         (*oconv)(0, '$');
2828                         (*oconv)(0, c1);
2829                         NEXT;
2830                     }
2831                 } else if (c1 == '(') {
2832                     if ((c1 = (*i_getc)(f)) == EOF) {
2833                         /* don't send bogus code 
2834                         (*oconv)(0, ESC);
2835                         (*oconv)(0, '('); */
2836                         LAST;
2837                     } else {
2838                         if (c1 == 'I') {
2839                             /* This is X0201 kana introduction */
2840                             input_mode = X0201; shift_mode = X0201;
2841                             NEXT;
2842                         } else if (c1 == 'B' || c1 == 'J' || c1 == 'H') {
2843                             /* This is X0208 kanji introduction */
2844                             input_mode = ASCII; shift_mode = FALSE;
2845                             NEXT;
2846                         } else if (broken_f&0x2) {
2847                             input_mode = ASCII; shift_mode = FALSE;
2848                             NEXT;
2849                         } else {
2850                             (*oconv)(0, ESC);
2851                             (*oconv)(0, '(');
2852                             /* maintain various input_mode here */
2853                             SEND;
2854                         }
2855                     }
2856                } else if ( c1 == 'N' || c1 == 'n' ){
2857                    /* SS2 */
2858                    c3 = (*i_getc)(f);  /* skip SS2 */
2859                    if ( (SPACE<=c3 && c3 < 0x60) || (0xa0<=c3 && c3 < 0xe0)){
2860                        c1 = c3;
2861                        c2 = X0201;
2862                        SEND;
2863                    }else{
2864                        (*i_ungetc)(c3, f);
2865                        /* lonely ESC  */
2866                        (*oconv)(0, ESC);
2867                        SEND;
2868                    }
2869                 } else {
2870                     /* lonely ESC  */
2871                     (*oconv)(0, ESC);
2872                     SEND;
2873                 }
2874             } else if (c1 == ESC && iconv == s_iconv) {
2875                 /* ESC in Shift_JIS */
2876                 if ((c1 = (*i_getc)(f)) == EOF) {
2877                     /*  (*oconv)(0, ESC); don't send bogus code */
2878                     LAST;
2879                 } else if (c1 == '$') {
2880                     /* J-PHONE emoji */
2881                     if ((c1 = (*i_getc)(f)) == EOF) {
2882                         /*
2883                            (*oconv)(0, ESC); don't send bogus code 
2884                            (*oconv)(0, '$'); */
2885                         LAST;
2886                     } else {
2887                         if (('E' <= c1 && c1 <= 'G') ||
2888                             ('O' <= c1 && c1 <= 'Q')) {
2889                             /*
2890                                NUM : 0 1 2 3 4 5
2891                                BYTE: G E F O P Q
2892                                C%7 : 1 6 0 2 3 4
2893                                C%7 : 0 1 2 3 4 5 6
2894                                NUM : 2 0 3 4 5 X 1
2895                              */
2896                             static const int jphone_emoji_first_table[7] = {2, 0, 3, 4, 5, 0, 1};
2897                             c0 = (jphone_emoji_first_table[c1 % 7] << 8) - SPACE + 0xE000 + CLASS_UNICODE;
2898                             while ((c1 = (*i_getc)(f)) != EOF) {
2899                                 if (SPACE <= c1 && c1 <= 'z') {
2900                                     (*oconv)(0, c1 + c0);
2901                                 } else break; /* c1 == SO */
2902                             }
2903                         }
2904                     }
2905                     if (c1 == EOF) LAST;
2906                     NEXT;
2907                 } else {
2908                     /* lonely ESC  */
2909                     (*oconv)(0, ESC);
2910                     SEND;
2911                 }
2912             } else if ((c1 == NL || c1 == CR) && broken_f&4) {
2913                 input_mode = ASCII; set_iconv(FALSE, 0);
2914                 SEND;
2915             } else if (c1 == NL && mime_decode_f && !mime_decode_mode ) {
2916                 if ((c1=(*i_getc)(f))!=EOF && c1 == SPACE) {
2917                     i_ungetc(SPACE,f);
2918                     continue;
2919                 } else {
2920                     i_ungetc(c1,f);
2921                 }
2922                 c1 = NL;
2923                 SEND;
2924             } else if (c1 == CR && mime_decode_f && !mime_decode_mode ) {
2925                 if ((c1=(*i_getc)(f))!=EOF) {
2926                     if (c1==SPACE) {
2927                         i_ungetc(SPACE,f);
2928                         continue;
2929                     } else if (c1 == NL && (c1=(*i_getc)(f))!=EOF && c1 == SPACE) {
2930                         i_ungetc(SPACE,f);
2931                         continue;
2932                     } else {
2933                         i_ungetc(c1,f);
2934                     }
2935                     i_ungetc(NL,f);
2936                 } else {
2937                     i_ungetc(c1,f);
2938                 }
2939                 c1 = CR;
2940                 SEND;
2941             } else if (c1 == DEL && input_mode == X0208 ) {
2942                 /* CP5022x */
2943                 c2 = c1;
2944                 NEXT;
2945             } else 
2946                 SEND;
2947         }
2948         /* send: */
2949         switch(input_mode){
2950         case ASCII:
2951             switch ((*iconv)(c2, c1, c0)) {  /* can be EUC / SJIS / UTF-8 / UTF-16 */
2952             case -2:
2953                 /* 4 bytes UTF-8 */
2954                 if ((c0 = (*i_getc)(f)) != EOF) {
2955                     code_status(c0);
2956                     c0 <<= 8;
2957                     if ((c3 = (*i_getc)(f)) != EOF) {
2958                         code_status(c3);
2959                         (*iconv)(c2, c1, c0|c3);
2960                     }
2961                 }
2962                 break;
2963             case -1:
2964                 /* 3 bytes EUC or UTF-8 */
2965                 if ((c0 = (*i_getc)(f)) != EOF) {
2966                     code_status(c0);
2967                     (*iconv)(c2, c1, c0);
2968                 }
2969                 break;
2970             }
2971             break;
2972         case X0208:
2973         case X0213_1:
2974             if (ms_ucs_map_f == UCS_MAP_CP932 &&
2975                 0x7F <= c2 && c2 <= 0x92 &&
2976                 0x21 <= c1 && c1 <= 0x7E) {
2977                 /* CP932 UDC */
2978                 if(c1 == 0x7F) return 0;
2979                 c1 = (c2 - 0x7F) * 94 + c1 - 0x21 + 0xE000 + CLASS_UNICODE;
2980                 c2 = 0;
2981             }
2982             (*oconv)(c2, c1); /* this is JIS, not SJIS/EUC case */
2983             break;
2984 #ifdef X0212_ENABLE
2985         case X0212:
2986             (*oconv)(PREFIX_EUCG3 | c2, c1);
2987             break;
2988 #endif /* X0212_ENABLE */
2989         case X0213_2:
2990             (*oconv)(PREFIX_EUCG3 | c2, c1);
2991             break;
2992         default:
2993             (*oconv)(input_mode, c1);  /* other special case */
2994         }
2995
2996         c2 = 0;
2997         c0 = 0;
2998         continue;
2999         /* goto next_word */
3000     }
3001
3002     /* epilogue */
3003     (*iconv)(EOF, 0, 0);
3004     if (!is_inputcode_set)
3005     {
3006         if (is_8bit) {
3007             struct input_code *p = input_code_list;
3008             struct input_code *result = p;
3009             while (p->name){
3010                 if (p->score < result->score) result = p;
3011                 ++p;
3012             }
3013             set_input_codename(result->name);
3014         }
3015     }
3016     return 1;
3017 }
3018
3019 nkf_char
3020 h_conv(FILE *f, nkf_char c2, nkf_char c1)
3021 {
3022     nkf_char ret, c3, c0;
3023     int hold_index;
3024
3025
3026     /** it must NOT be in the kanji shifte sequence      */
3027     /** it must NOT be written in JIS7                   */
3028     /** and it must be after 2 byte 8bit code            */
3029
3030     hold_count = 0;
3031     push_hold_buf(c2);
3032     push_hold_buf(c1);
3033
3034     while ((c1 = (*i_getc)(f)) != EOF) {
3035         if (c1 == ESC){
3036             (*i_ungetc)(c1,f);
3037             break;
3038         }
3039         code_status(c1);
3040         if (push_hold_buf(c1) == EOF || estab_f){
3041             break;
3042         }
3043     }
3044
3045     if (!estab_f){
3046         struct input_code *p = input_code_list;
3047         struct input_code *result = p;
3048         if (c1 == EOF){
3049             code_status(c1);
3050         }
3051         while (p->name){
3052             if (p->score < result->score){
3053                 result = p;
3054             }
3055             ++p;
3056         }
3057         set_iconv(FALSE, result->iconv_func);
3058     }
3059
3060
3061     /** now,
3062      ** 1) EOF is detected, or
3063      ** 2) Code is established, or
3064      ** 3) Buffer is FULL (but last word is pushed)
3065      **
3066      ** in 1) and 3) cases, we continue to use
3067      ** Kanji codes by oconv and leave estab_f unchanged.
3068      **/
3069
3070     ret = c1;
3071     hold_index = 0;
3072     while (hold_index < hold_count){
3073         c2 = hold_buf[hold_index++];
3074         if (c2 <= DEL
3075 #ifdef NUMCHAR_OPTION
3076             || is_unicode_capsule(c2)
3077 #endif
3078             ){
3079             (*iconv)(0, c2, 0);
3080             continue;
3081         }else if (iconv == s_iconv && 0xa1 <= c2 && c2 <= 0xdf){
3082             (*iconv)(X0201, c2, 0);
3083             continue;
3084         }
3085         if (hold_index < hold_count){
3086             c1 = hold_buf[hold_index++];
3087         }else{
3088             c1 = (*i_getc)(f);
3089             if (c1 == EOF){
3090                 c3 = EOF;
3091                 break;
3092             }
3093             code_status(c1);
3094         }
3095         c0 = 0;
3096         switch ((*iconv)(c2, c1, 0)) {  /* can be EUC/SJIS/UTF-8 */
3097         case -2:
3098             /* 4 bytes UTF-8 */
3099             if (hold_index < hold_count){
3100                 c0 = hold_buf[hold_index++];
3101             } else if ((c0 = (*i_getc)(f)) == EOF) {
3102                 ret = EOF;
3103                 break;
3104             } else {
3105                 code_status(c0);
3106                 c0 <<= 8;
3107                 if (hold_index < hold_count){
3108                     c3 = hold_buf[hold_index++];
3109                 } else if ((c3 = (*i_getc)(f)) == EOF) {
3110                     c0 = ret = EOF;
3111                     break;
3112                 } else {
3113                     code_status(c3);
3114                     (*iconv)(c2, c1, c0|c3);
3115                 }
3116             }
3117             break;
3118         case -1:
3119             /* 3 bytes EUC or UTF-8 */
3120             if (hold_index < hold_count){
3121                 c0 = hold_buf[hold_index++];
3122             } else if ((c0 = (*i_getc)(f)) == EOF) {
3123                 ret = EOF;
3124                 break;
3125             } else {
3126                 code_status(c0);
3127             }
3128             (*iconv)(c2, c1, c0);
3129             break;
3130         }
3131         if (c0 == EOF) break;
3132     }
3133     return ret;
3134 }
3135
3136 nkf_char push_hold_buf(nkf_char c2)
3137 {
3138     if (hold_count >= HOLD_SIZE*2)
3139         return (EOF);
3140     hold_buf[hold_count++] = (unsigned char)c2;
3141     return ((hold_count >= HOLD_SIZE*2) ? EOF : hold_count);
3142 }
3143
3144 nkf_char s2e_conv(nkf_char c2, nkf_char c1, nkf_char *p2, nkf_char *p1)
3145 {
3146 #if defined(SHIFTJIS_CP932) || defined(X0212_ENABLE)
3147     nkf_char val;
3148 #endif
3149     static const nkf_char shift_jisx0213_s1a3_table[5][2] ={ { 1, 8}, { 3, 4}, { 5,12}, {13,14}, {15, 0} };
3150 #ifdef SHIFTJIS_CP932
3151     if (cp51932_f && is_ibmext_in_sjis(c2)){
3152 #if 0
3153         extern const unsigned short shiftjis_cp932[3][189];
3154 #endif
3155         val = shiftjis_cp932[c2 - CP932_TABLE_BEGIN][c1 - 0x40];
3156         if (val){
3157             c2 = val >> 8;
3158             c1 = val & 0xff;
3159         }
3160     }
3161 #endif /* SHIFTJIS_CP932 */
3162 #ifdef X0212_ENABLE
3163     if (!x0213_f && is_ibmext_in_sjis(c2)){
3164 #if 0
3165         extern const unsigned short shiftjis_x0212[3][189];
3166 #endif
3167         val = shiftjis_x0212[c2 - 0xfa][c1 - 0x40];
3168         if (val){
3169             if (val > 0x7FFF){
3170                 c2 = PREFIX_EUCG3 | (val >> 8);
3171                 c1 = val & 0xff;
3172             }else{
3173                 c2 = val >> 8;
3174                 c1 = val & 0xff;
3175             }
3176             if (p2) *p2 = c2;
3177             if (p1) *p1 = c1;
3178             return 0;
3179         }
3180     }
3181 #endif
3182     if(c2 >= 0x80){
3183         if(x0213_f && c2 >= 0xF0){
3184             if(c2 <= 0xF3 || (c2 == 0xF4 && c1 < 0x9F)){ /* k=1, 3<=k<=5, k=8, 12<=k<=15 */
3185                 c2 = PREFIX_EUCG3 | 0x20 | shift_jisx0213_s1a3_table[c2 - 0xF0][0x9E < c1];
3186             }else{ /* 78<=k<=94 */
3187                 c2 = PREFIX_EUCG3 | (c2 * 2 - 0x17B);
3188                 if (0x9E < c1) c2++;
3189             }
3190         }else{
3191             c2 = c2 + c2 - ((c2 <= 0x9F) ? SJ0162 : SJ6394);
3192             if (0x9E < c1) c2++;
3193         }
3194         if (c1 < 0x9F)
3195             c1 = c1 - ((c1 > DEL) ? SPACE : 0x1F);
3196         else {
3197             c1 = c1 - 0x7E;
3198         }
3199     }
3200
3201 #ifdef X0212_ENABLE
3202     c2 = x0212_unshift(c2);
3203 #endif
3204     if (p2) *p2 = c2;
3205     if (p1) *p1 = c1;
3206     return 0;
3207 }
3208
3209 nkf_char s_iconv(nkf_char c2, nkf_char c1, nkf_char c0)
3210 {
3211     if (c2 == X0201) {
3212         c1 &= 0x7f;
3213     } else if ((c2 == EOF) || (c2 == 0) || c2 < SPACE) {
3214         /* NOP */
3215     } else if (ms_ucs_map_f == UCS_MAP_CP932 &&
3216                0xF0 <= c2 && c2 <= 0xF9 &&
3217                0x40 <= c1 && c1 <= 0xFC) {
3218         /* CP932 UDC */
3219         if(c1 == 0x7F) return 0;
3220         c1 = (c2 - 0xF0) * 188 + (c1 - 0x40 - (0x7E < c1)) + 0xE000 + CLASS_UNICODE;
3221         c2 = 0;
3222     } else {
3223         nkf_char ret = s2e_conv(c2, c1, &c2, &c1);
3224         if (ret) return ret;
3225     }
3226     (*oconv)(c2, c1);
3227     return 0;
3228 }
3229
3230 nkf_char e_iconv(nkf_char c2, nkf_char c1, nkf_char c0)
3231 {
3232     if (c2 == X0201) {
3233         c1 &= 0x7f;
3234 #ifdef X0212_ENABLE
3235     }else if (c2 == 0x8f){
3236         if (c0 == 0){
3237             return -1;
3238         }
3239         if (ms_ucs_map_f == UCS_MAP_MS && 0xF5 <= c1 && c1 <= 0xFE && 0xA1 <= c0 && c0 <= 0xFE) {
3240             /* encoding is eucJP-ms, so invert to Unicode Private User Area */
3241             c1 = (c1 - 0xF5) * 94 + c0 - 0xA1 + 0xE3AC + CLASS_UNICODE;
3242             c2 = 0;
3243         } else {
3244             c2 = (c2 << 8) | (c1 & 0x7f);
3245             c1 = c0 & 0x7f;
3246 #ifdef SHIFTJIS_CP932
3247             if (cp51932_f){
3248                 nkf_char s2, s1;
3249                 if (e2s_conv(c2, c1, &s2, &s1) == 0){
3250                     s2e_conv(s2, s1, &c2, &c1);
3251                     if (c2 < 0x100){
3252                         c1 &= 0x7f;
3253                         c2 &= 0x7f;
3254                     }
3255                 }
3256             }
3257 #endif /* SHIFTJIS_CP932 */
3258         }
3259 #endif /* X0212_ENABLE */
3260     } else if (c2 == SSO){
3261         c2 = X0201;
3262         c1 &= 0x7f;
3263     } else if ((c2 == EOF) || (c2 == 0) || c2 < SPACE) {
3264         /* NOP */
3265     } else {
3266         if (ms_ucs_map_f == UCS_MAP_MS && 0xF5 <= c2 && c2 <= 0xFE && 0xA1 <= c1 && c1 <= 0xFE) {
3267             /* encoding is eucJP-ms, so invert to Unicode Private User Area */
3268             c1 = (c2 - 0xF5) * 94 + c1 - 0xA1 + 0xE000 + CLASS_UNICODE;
3269             c2 = 0;
3270         } else {
3271             c1 &= 0x7f;
3272             c2 &= 0x7f;
3273         }
3274     }
3275     (*oconv)(c2, c1);
3276     return 0;
3277 }
3278
3279 #ifdef UTF8_INPUT_ENABLE
3280 nkf_char w2e_conv(nkf_char c2, nkf_char c1, nkf_char c0, nkf_char *p2, nkf_char *p1)
3281 {
3282     nkf_char ret = 0;
3283
3284     if (!c1){
3285         *p2 = 0;
3286         *p1 = c2;
3287     }else if (0xc0 <= c2 && c2 <= 0xef) {
3288         ret =  unicode_to_jis_common(c2, c1, c0, p2, p1);
3289 #ifdef NUMCHAR_OPTION
3290         if (ret > 0){
3291             if (p2) *p2 = 0;
3292             if (p1) *p1 = CLASS_UNICODE | ww16_conv(c2, c1, c0);
3293             ret = 0;
3294         }
3295 #endif
3296     }
3297     return ret;
3298 }
3299
3300 nkf_char w_iconv(nkf_char c2, nkf_char c1, nkf_char c0)
3301 {
3302     nkf_char ret = 0;
3303     static const int w_iconv_utf8_1st_byte[] =
3304     { /* 0xC0 - 0xFF */
3305         20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
3306         21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
3307         30, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 32, 33, 33,
3308         40, 41, 41, 41, 42, 43, 43, 43, 50, 50, 50, 50, 60, 60, 70, 70};
3309     
3310     if (c2 < 0 || 0xff < c2) {
3311     }else if (c2 == 0) { /* 0 : 1 byte*/
3312         c0 = 0;
3313     } else if ((c2 & 0xc0) == 0x80) { /* 0x80-0xbf : trail byte */
3314         return 0;
3315     } else{
3316         switch (w_iconv_utf8_1st_byte[c2 - 0xC0]) {
3317         case 21:
3318             if (c1 < 0x80 || 0xBF < c1) return 0;
3319             break;
3320         case 30:
3321             if (c0 == 0) return -1;
3322             if (c1 < 0xA0 || 0xBF < c1 || (c0 & 0xc0) != 0x80)
3323                 return 0;
3324             break;
3325         case 31:
3326         case 33:
3327             if (c0 == 0) return -1;
3328             if ((c1 & 0xc0) != 0x80 || (c0 & 0xc0) != 0x80)
3329                 return 0;
3330             break;
3331         case 32:
3332             if (c0 == 0) return -1;
3333             if (c1 < 0x80 || 0x9F < c1 || (c0 & 0xc0) != 0x80)
3334                 return 0;
3335             break;
3336         case 40:
3337             if (c0 == 0) return -2;
3338             if (c1 < 0x90 || 0xBF < c1 || (c0 & 0xc0c0) != 0x8080)
3339                 return 0;
3340             break;
3341         case 41:
3342             if (c0 == 0) return -2;
3343             if (c1 < 0x80 || 0xBF < c1 || (c0 & 0xc0c0) != 0x8080)
3344                 return 0;
3345             break;
3346         case 42:
3347             if (c0 == 0) return -2;
3348             if (c1 < 0x80 || 0x8F < c1 || (c0 & 0xc0c0) != 0x8080)
3349                 return 0;
3350             break;
3351         default:
3352             return 0;
3353             break;
3354         }
3355     }
3356     if (c2 == 0 || c2 == EOF){
3357     } else if ((c2 & 0xf8) == 0xf0) { /* 4 bytes */
3358         c1 = CLASS_UNICODE | ww16_conv(c2, c1, c0);
3359         c2 = 0;
3360     } else {
3361         ret = w2e_conv(c2, c1, c0, &c2, &c1);
3362     }
3363     if (ret == 0){
3364         (*oconv)(c2, c1);
3365     }
3366     return ret;
3367 }
3368 #endif
3369
3370 #if defined(UTF8_INPUT_ENABLE) || defined(UTF8_OUTPUT_ENABLE)
3371 void w16w_conv(nkf_char val, nkf_char *p2, nkf_char *p1, nkf_char *p0)
3372 {
3373     val &= VALUE_MASK;
3374     if (val < 0x80){
3375         *p2 = val;
3376         *p1 = 0;
3377         *p0 = 0;
3378     }else if (val < 0x800){
3379         *p2 = 0xc0 | (val >> 6);
3380         *p1 = 0x80 | (val & 0x3f);
3381         *p0 = 0;
3382     } else if (val <= NKF_INT32_C(0xFFFF)) {
3383         *p2 = 0xe0 | (val >> 12);
3384         *p1 = 0x80 | ((val >> 6) & 0x3f);
3385         *p0 = 0x80 | (val        & 0x3f);
3386     } else if (val <= NKF_INT32_C(0x10FFFF)) {
3387         *p2 = 0xe0 |  (val >> 16);
3388         *p1 = 0x80 | ((val >> 12) & 0x3f);
3389         *p0 = 0x8080 | ((val << 2) & 0x3f00)| (val & 0x3f);
3390     } else {
3391         *p2 = 0;
3392         *p1 = 0;
3393         *p0 = 0;
3394     }
3395 }
3396 #endif
3397
3398 #ifdef UTF8_INPUT_ENABLE
3399 nkf_char ww16_conv(nkf_char c2, nkf_char c1, nkf_char c0)
3400 {
3401     nkf_char val;
3402     if (c2 >= 0xf8) {
3403         val = -1;
3404     } else if (c2 >= 0xf0){
3405         /* c2: 1st, c1: 2nd, c0: 3rd/4th */
3406         val = (c2 & 0x0f) << 18;
3407         val |= (c1 & 0x3f) << 12;
3408         val |= (c0 & 0x3f00) >> 2;
3409         val |= (c0 & 0x3f);
3410     }else if (c2 >= 0xe0){
3411         val = (c2 & 0x0f) << 12;
3412         val |= (c1 & 0x3f) << 6;
3413         val |= (c0 & 0x3f);
3414     }else if (c2 >= 0xc0){
3415         val = (c2 & 0x1f) << 6;
3416         val |= (c1 & 0x3f);
3417     }else{
3418         val = c2;
3419     }
3420     return val;
3421 }
3422
3423 nkf_char w16e_conv(nkf_char val, nkf_char *p2, nkf_char *p1)
3424 {
3425     nkf_char c2, c1, c0;
3426     nkf_char ret = 0;
3427     val &= VALUE_MASK;
3428     if (val < 0x80){
3429         *p2 = 0;
3430         *p1 = val;
3431     }else{
3432         w16w_conv(val, &c2, &c1, &c0);
3433         ret =  unicode_to_jis_common(c2, c1, c0, p2, p1);
3434 #ifdef NUMCHAR_OPTION
3435         if (ret > 0){
3436             *p2 = 0;
3437             *p1 = CLASS_UNICODE | val;
3438             ret = 0;
3439         }
3440 #endif
3441     }
3442     return ret;
3443 }
3444 #endif
3445
3446 #ifdef UTF8_INPUT_ENABLE
3447 nkf_char w_iconv16(nkf_char c2, nkf_char c1, nkf_char c0)
3448 {
3449     nkf_char ret = 0;
3450     if ((c2==0 && c1 < 0x80) || c2==EOF) {
3451         (*oconv)(c2, c1);
3452         return 0;
3453     }else if (0xD8 <= c2 && c2 <= 0xDB) {
3454         if (c0 < NKF_INT32_C(0xDC00) || NKF_INT32_C(0xDFFF) < c0)
3455             return -2;
3456         c1 =  CLASS_UNICODE | ((c2 << 18) + (c1 << 10) + c0 - NKF_INT32_C(0x35FDC00));
3457         c2 = 0;
3458     }else if ((c2>>3) == 27) { /* unpaired surrogate */
3459         /*
3460            return 2;
3461         */
3462         return 1;
3463     }else ret = w16e_conv(((c2 & 0xff)<<8) + c1, &c2, &c1);
3464     if (ret) return ret;
3465     (*oconv)(c2, c1);
3466     return 0;
3467 }
3468
3469 nkf_char w_iconv32(nkf_char c2, nkf_char c1, nkf_char c0)
3470 {
3471     int ret = 0;
3472
3473     if ((c2 == 0 && c1 < 0x80) || c2==EOF) {
3474     } else if (is_unicode_bmp(c1)) {
3475         ret = w16e_conv(c1, &c2, &c1);
3476     } else {
3477         c2 = 0;
3478         c1 =  CLASS_UNICODE | c1;
3479     }
3480     if (ret) return ret;
3481     (*oconv)(c2, c1);
3482     return 0;
3483 }
3484
3485 nkf_char unicode_to_jis_common(nkf_char c2, nkf_char c1, nkf_char c0, nkf_char *p2, nkf_char *p1)
3486 {
3487 #if 0
3488     extern const unsigned short *const utf8_to_euc_2bytes[];
3489     extern const unsigned short *const utf8_to_euc_2bytes_ms[];
3490     extern const unsigned short *const utf8_to_euc_2bytes_932[];
3491     extern const unsigned short *const *const utf8_to_euc_3bytes[];
3492     extern const unsigned short *const *const utf8_to_euc_3bytes_ms[];
3493     extern const unsigned short *const *const utf8_to_euc_3bytes_932[];
3494 #endif
3495     const unsigned short *const *pp;
3496     const unsigned short *const *const *ppp;
3497     static const int no_best_fit_chars_table_C2[] =
3498     {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3499         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3500         1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 2, 1, 1, 2,
3501         0, 0, 1, 1, 0, 1, 0, 1, 2, 1, 1, 1, 1, 1, 1, 1};
3502     static const int no_best_fit_chars_table_C2_ms[] =
3503     {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3504         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3505         1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0,
3506         0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0};
3507     static const int no_best_fit_chars_table_932_C2[] =
3508     {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3509         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3510         1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1,
3511         0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0};
3512     static const int no_best_fit_chars_table_932_C3[] =
3513     {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3514         1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1,
3515         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
3516         1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1};
3517     nkf_char ret = 0;
3518
3519     if(c2 < 0x80){
3520         *p2 = 0;
3521         *p1 = c2;
3522     }else if(c2 < 0xe0){
3523         if(no_best_fit_chars_f){
3524             if(ms_ucs_map_f == UCS_MAP_CP932){
3525                 switch(c2){
3526                 case 0xC2:
3527                     if(no_best_fit_chars_table_932_C2[c1&0x3F]) return 1;
3528                     break;
3529                 case 0xC3:
3530                     if(no_best_fit_chars_table_932_C3[c1&0x3F]) return 1;
3531                     break;
3532                 }
3533             }else if(cp51932_f){
3534                 switch(c2){
3535                 case 0xC2:
3536                     if(no_best_fit_chars_table_C2[c1&0x3F]) return 1;
3537                     break;
3538                 case 0xC3:
3539                     if(no_best_fit_chars_table_932_C3[c1&0x3F]) return 1;
3540                     break;
3541                 }
3542             }else if(ms_ucs_map_f == UCS_MAP_MS){
3543                 if(c2 == 0xC2 && no_best_fit_chars_table_C2_ms[c1&0x3F]) return 1;
3544             }
3545         }
3546         pp =
3547             ms_ucs_map_f == UCS_MAP_CP932 ? utf8_to_euc_2bytes_932 :
3548             ms_ucs_map_f == UCS_MAP_MS ? utf8_to_euc_2bytes_ms :
3549             utf8_to_euc_2bytes;
3550         ret =  w_iconv_common(c2, c1, pp, sizeof_utf8_to_euc_2bytes, p2, p1);
3551     }else if(c0 < 0xF0){
3552         if(no_best_fit_chars_f){
3553             if(ms_ucs_map_f == UCS_MAP_CP932){
3554                 if(c2 == 0xE3 && c1 == 0x82 && c0 == 0x94) return 1;
3555             }else if(ms_ucs_map_f == UCS_MAP_MS){
3556                 switch(c2){
3557                 case 0xE2:
3558                     switch(c1){
3559                     case 0x80:
3560                         if(c0 == 0x94 || c0 == 0x96 || c0 == 0xBE) return 1;
3561                         break;
3562                     case 0x88:
3563                         if(c0 == 0x92) return 1;
3564                         break;
3565                     }
3566                     break;
3567                 case 0xE3:
3568                     if(c1 == 0x80 || c0 == 0x9C) return 1;
3569                     break;
3570                 }
3571             }else{
3572                 switch(c2){
3573                 case 0xE2:
3574                     switch(c1){
3575                     case 0x80:
3576                         if(c0 == 0x95) return 1;
3577                         break;
3578                     case 0x88:
3579                         if(c0 == 0xA5) return 1;
3580                         break;
3581                     }
3582                     break;
3583                 case 0xEF:
3584                     switch(c1){
3585                     case 0xBC:
3586                         if(c0 == 0x8D) return 1;
3587                         break;
3588                     case 0xBD:
3589                         if(c0 == 0x9E && cp51932_f) return 1;
3590                         break;
3591                     case 0xBF:
3592                         if(0xA0 <= c0 && c0 <= 0xA5) return 1;
3593                         break;
3594                     }
3595                     break;
3596                 }
3597             }
3598         }
3599         ppp =
3600             ms_ucs_map_f == UCS_MAP_CP932 ? utf8_to_euc_3bytes_932 :
3601             ms_ucs_map_f == UCS_MAP_MS ? utf8_to_euc_3bytes_ms :
3602             utf8_to_euc_3bytes;
3603         ret = w_iconv_common(c1, c0, ppp[c2 - 0xE0], sizeof_utf8_to_euc_C2, p2, p1);
3604     }else return -1;
3605 #ifdef SHIFTJIS_CP932
3606     if (!ret && cp51932_f && is_eucg3(*p2)) {
3607         nkf_char s2, s1;
3608         if (e2s_conv(*p2, *p1, &s2, &s1) == 0) {
3609             s2e_conv(s2, s1, p2, p1);
3610         }else{
3611             ret = 1;
3612         }
3613     }
3614 #endif
3615     return ret;
3616 }
3617
3618 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)
3619 {
3620     nkf_char c2;
3621     const unsigned short *p;
3622     unsigned short val;
3623
3624     if (pp == 0) return 1;
3625
3626     c1 -= 0x80;
3627     if (c1 < 0 || psize <= c1) return 1;
3628     p = pp[c1];
3629     if (p == 0)  return 1;
3630
3631     c0 -= 0x80;
3632     if (c0 < 0 || sizeof_utf8_to_euc_C2 <= c0) return 1;
3633     val = p[c0];
3634     if (val == 0) return 1;
3635     if (no_cp932ext_f && (
3636         (val>>8) == 0x2D || /* NEC special characters */
3637         val > NKF_INT32_C(0xF300) /* IBM extended characters */
3638         )) return 1;
3639
3640     c2 = val >> 8;
3641    if (val > 0x7FFF){
3642         c2 &= 0x7f;
3643         c2 |= PREFIX_EUCG3;
3644     }
3645     if (c2 == SO) c2 = X0201;
3646     c1 = val & 0x7f;
3647     if (p2) *p2 = c2;
3648     if (p1) *p1 = c1;
3649     return 0;
3650 }
3651
3652 void nkf_each_char_to_hex(void (*f)(nkf_char c2,nkf_char c1), nkf_char c)
3653 {
3654     const char *hex = "0123456789ABCDEF";
3655     int shift = 20;
3656     c &= VALUE_MASK;
3657     while(shift >= 0){
3658         if(c >= 1<<shift){
3659             while(shift >= 0){
3660                 (*f)(0, hex[(c>>shift)&0xF]);
3661                 shift -= 4;
3662             }
3663         }else{
3664             shift -= 4;
3665         }
3666     }
3667     return;
3668 }
3669
3670 void encode_fallback_html(nkf_char c)
3671 {
3672     (*oconv)(0, '&');
3673     (*oconv)(0, '#');
3674     c &= VALUE_MASK;
3675     if(c >= NKF_INT32_C(1000000))
3676         (*oconv)(0, 0x30+(c/NKF_INT32_C(1000000))%10);
3677     if(c >= NKF_INT32_C(100000))
3678         (*oconv)(0, 0x30+(c/NKF_INT32_C(100000) )%10);
3679     if(c >= 10000)
3680         (*oconv)(0, 0x30+(c/10000  )%10);
3681     if(c >= 1000)
3682         (*oconv)(0, 0x30+(c/1000   )%10);
3683     if(c >= 100)
3684         (*oconv)(0, 0x30+(c/100    )%10);
3685     if(c >= 10)
3686         (*oconv)(0, 0x30+(c/10     )%10);
3687     if(c >= 0)
3688         (*oconv)(0, 0x30+ c         %10);
3689     (*oconv)(0, ';');
3690     return;
3691 }
3692
3693 void encode_fallback_xml(nkf_char c)
3694 {
3695     (*oconv)(0, '&');
3696     (*oconv)(0, '#');
3697     (*oconv)(0, 'x');
3698     nkf_each_char_to_hex(oconv, c);
3699     (*oconv)(0, ';');
3700     return;
3701 }
3702
3703 void encode_fallback_java(nkf_char c)
3704 {
3705     const char *hex = "0123456789ABCDEF";
3706     (*oconv)(0, '\\');
3707     c &= VALUE_MASK;
3708     if(!is_unicode_bmp(c)){
3709         (*oconv)(0, 'U');
3710         (*oconv)(0, '0');
3711         (*oconv)(0, '0');
3712         (*oconv)(0, hex[(c>>20)&0xF]);
3713         (*oconv)(0, hex[(c>>16)&0xF]);
3714     }else{
3715         (*oconv)(0, 'u');
3716     }
3717     (*oconv)(0, hex[(c>>12)&0xF]);
3718     (*oconv)(0, hex[(c>> 8)&0xF]);
3719     (*oconv)(0, hex[(c>> 4)&0xF]);
3720     (*oconv)(0, hex[ c     &0xF]);
3721     return;
3722 }
3723
3724 void encode_fallback_perl(nkf_char c)
3725 {
3726     (*oconv)(0, '\\');
3727     (*oconv)(0, 'x');
3728     (*oconv)(0, '{');
3729     nkf_each_char_to_hex(oconv, c);
3730     (*oconv)(0, '}');
3731     return;
3732 }
3733
3734 void encode_fallback_subchar(nkf_char c)
3735 {
3736     c = unicode_subchar;
3737     (*oconv)((c>>8)&0xFF, c&0xFF);
3738     return;
3739 }
3740 #endif
3741
3742 #ifdef UTF8_OUTPUT_ENABLE
3743 nkf_char e2w_conv(nkf_char c2, nkf_char c1)
3744 {
3745 #if 0
3746     extern const unsigned short euc_to_utf8_1byte[];
3747     extern const unsigned short *const euc_to_utf8_2bytes[];
3748     extern const unsigned short *const euc_to_utf8_2bytes_ms[];
3749     extern const unsigned short *const x0212_to_utf8_2bytes[];
3750 #endif
3751     const unsigned short *p;
3752
3753     if (c2 == X0201) {
3754         p = euc_to_utf8_1byte;
3755 #ifdef X0212_ENABLE
3756     } else if (is_eucg3(c2)){
3757         if(ms_ucs_map_f == UCS_MAP_ASCII&& c2 == NKF_INT32_C(0x8F22) && c1 == 0x43){
3758             return 0xA6;
3759         }
3760         c2 = (c2&0x7f) - 0x21;
3761         if (0<=c2 && c2<sizeof_euc_to_utf8_2bytes)
3762             p = x0212_to_utf8_2bytes[c2];
3763         else
3764             return 0;
3765 #endif
3766     } else {
3767         c2 &= 0x7f;
3768         c2 = (c2&0x7f) - 0x21;
3769         if (0<=c2 && c2<sizeof_euc_to_utf8_2bytes)
3770             p = ms_ucs_map_f != UCS_MAP_ASCII ? euc_to_utf8_2bytes_ms[c2] : euc_to_utf8_2bytes[c2];
3771         else
3772             return 0;
3773     }
3774     if (!p) return 0;
3775     c1 = (c1 & 0x7f) - 0x21;
3776     if (0<=c1 && c1<sizeof_euc_to_utf8_1byte)
3777         return p[c1];
3778     return 0;
3779 }
3780
3781 void w_oconv(nkf_char c2, nkf_char c1)
3782 {
3783     nkf_char c0;
3784     nkf_char val;
3785
3786     if (output_bom_f) {
3787         output_bom_f = FALSE;
3788         (*o_putc)('\357');
3789         (*o_putc)('\273');
3790         (*o_putc)('\277');
3791     }
3792
3793     if (c2 == EOF) {
3794         (*o_putc)(EOF);
3795         return;
3796     }
3797
3798 #ifdef NUMCHAR_OPTION
3799     if (c2 == 0 && is_unicode_capsule(c1)){
3800         val = c1 & VALUE_MASK;
3801         if (val < 0x80){
3802             (*o_putc)(val);
3803         }else if (val < 0x800){
3804             (*o_putc)(0xC0 | (val >> 6));
3805             (*o_putc)(0x80 | (val & 0x3f));
3806         } else if (val <= NKF_INT32_C(0xFFFF)) {
3807             (*o_putc)(0xE0 | (val >> 12));
3808             (*o_putc)(0x80 | ((val >> 6) & 0x3f));
3809             (*o_putc)(0x80 | (val        & 0x3f));
3810         } else if (val <= NKF_INT32_C(0x10FFFF)) {
3811             (*o_putc)(0xF0 | ( val>>18));
3812             (*o_putc)(0x80 | ((val>>12) & 0x3f));
3813             (*o_putc)(0x80 | ((val>> 6) & 0x3f));
3814             (*o_putc)(0x80 | ( val      & 0x3f));
3815         }
3816         return;
3817     }
3818 #endif
3819
3820     if (c2 == 0) { 
3821         output_mode = ASCII;
3822         (*o_putc)(c1);
3823     } else if (c2 == ISO8859_1) {
3824         output_mode = ISO8859_1;
3825         (*o_putc)(c1 | 0x080);
3826     } else {
3827         output_mode = UTF8;
3828         val = e2w_conv(c2, c1);
3829         if (val){
3830             w16w_conv(val, &c2, &c1, &c0);
3831             (*o_putc)(c2);
3832             if (c1){
3833                 (*o_putc)(c1);
3834                 if (c0) (*o_putc)(c0);
3835             }
3836         }
3837     }
3838 }
3839
3840 void w_oconv16(nkf_char c2, nkf_char c1)
3841 {
3842     if (output_bom_f) {
3843         output_bom_f = FALSE;
3844         if (output_endian == ENDIAN_LITTLE){
3845             (*o_putc)((unsigned char)'\377');
3846             (*o_putc)('\376');
3847         }else{
3848             (*o_putc)('\376');
3849             (*o_putc)((unsigned char)'\377');
3850         }
3851     }
3852
3853     if (c2 == EOF) {
3854         (*o_putc)(EOF);
3855         return;
3856     }
3857
3858     if (c2 == ISO8859_1) {
3859         c2 = 0;
3860         c1 |= 0x80;
3861 #ifdef NUMCHAR_OPTION
3862     } else if (c2 == 0 && is_unicode_capsule(c1)) {
3863         if (is_unicode_bmp(c1)) {
3864             c2 = (c1 >> 8) & 0xff;
3865             c1 &= 0xff;
3866         } else {
3867             c1 &= VALUE_MASK;
3868             if (c1 <= UNICODE_MAX) {
3869                 c2 = (c1 >> 10) + NKF_INT32_C(0xD7C0);   /* high surrogate */
3870                 c1 = (c1 & 0x3FF) + NKF_INT32_C(0xDC00); /* low surrogate */
3871                 if (output_endian == ENDIAN_LITTLE){
3872                     (*o_putc)(c2 & 0xff);
3873                     (*o_putc)((c2 >> 8) & 0xff);
3874                     (*o_putc)(c1 & 0xff);
3875                     (*o_putc)((c1 >> 8) & 0xff);
3876                 }else{
3877                     (*o_putc)((c2 >> 8) & 0xff);
3878                     (*o_putc)(c2 & 0xff);
3879                     (*o_putc)((c1 >> 8) & 0xff);
3880                     (*o_putc)(c1 & 0xff);
3881                 }
3882             }
3883             return;
3884         }
3885 #endif
3886     } else if (c2) {
3887         nkf_char val = e2w_conv(c2, c1);
3888         c2 = (val >> 8) & 0xff;
3889         c1 = val & 0xff;
3890         if (!val) return;
3891     }
3892     if (output_endian == ENDIAN_LITTLE){
3893         (*o_putc)(c1);
3894         (*o_putc)(c2);
3895     }else{
3896         (*o_putc)(c2);
3897         (*o_putc)(c1);
3898     }
3899 }
3900
3901 void w_oconv32(nkf_char c2, nkf_char c1)
3902 {
3903     if (output_bom_f) {
3904         output_bom_f = FALSE;
3905         if (output_endian == ENDIAN_LITTLE){
3906             (*o_putc)((unsigned char)'\377');
3907             (*o_putc)('\376');
3908             (*o_putc)('\000');
3909             (*o_putc)('\000');
3910         }else{
3911             (*o_putc)('\000');
3912             (*o_putc)('\000');
3913             (*o_putc)('\376');
3914             (*o_putc)((unsigned char)'\377');
3915         }
3916     }
3917
3918     if (c2 == EOF) {
3919         (*o_putc)(EOF);
3920         return;
3921     }
3922
3923     if (c2 == ISO8859_1) {
3924         c1 |= 0x80;
3925 #ifdef NUMCHAR_OPTION
3926     } else if (c2 == 0 && is_unicode_capsule(c1)) {
3927         c1 &= VALUE_MASK;
3928 #endif
3929     } else if (c2) {
3930         c1 = e2w_conv(c2, c1);
3931         if (!c1) return;
3932     }
3933     if (output_endian == ENDIAN_LITTLE){
3934         (*o_putc)( c1 & NKF_INT32_C(0x000000FF));
3935         (*o_putc)((c1 & NKF_INT32_C(0x0000FF00)) >>  8);
3936         (*o_putc)((c1 & NKF_INT32_C(0x00FF0000)) >> 16);
3937         (*o_putc)('\000');
3938     }else{
3939         (*o_putc)('\000');
3940         (*o_putc)((c1 & NKF_INT32_C(0x00FF0000)) >> 16);
3941         (*o_putc)((c1 & NKF_INT32_C(0x0000FF00)) >>  8);
3942         (*o_putc)( c1 & NKF_INT32_C(0x000000FF));
3943     }
3944 }
3945 #endif
3946
3947 void e_oconv(nkf_char c2, nkf_char c1)
3948 {
3949 #ifdef NUMCHAR_OPTION
3950     if (c2 == 0 && is_unicode_capsule(c1)){
3951         w16e_conv(c1, &c2, &c1);
3952         if (c2 == 0 && is_unicode_capsule(c1)){
3953             c2 = c1 & VALUE_MASK;
3954             if (ms_ucs_map_f == UCS_MAP_MS &&
3955                 0xE000 <= c2 && c2 <= 0xE757) {
3956                 /* eucJP-ms UDC */
3957                 c1 &= 0xFFF;
3958                 c2 = c1 / 94;
3959                 c2 += c2 < 10 ? 0x75 : 0x8FEB;
3960                 c1 = 0x21 + c1 % 94;
3961             } else {
3962                 if (encode_fallback) (*encode_fallback)(c1);
3963                 return;
3964             }
3965         }
3966     }
3967 #endif
3968     if (c2 == EOF) {
3969         (*o_putc)(EOF);
3970         return;
3971     } else if (c2 == 0) { 
3972         output_mode = ASCII;
3973         (*o_putc)(c1);
3974     } else if (c2 == X0201) {
3975         output_mode = JAPANESE_EUC;
3976         (*o_putc)(SSO); (*o_putc)(c1|0x80);
3977     } else if (c2 == ISO8859_1) {
3978         output_mode = ISO8859_1;
3979         (*o_putc)(c1 | 0x080);
3980 #ifdef X0212_ENABLE
3981     } else if (is_eucg3(c2)){
3982         output_mode = JAPANESE_EUC;
3983 #ifdef SHIFTJIS_CP932
3984         if (cp51932_f){
3985             nkf_char s2, s1;
3986             if (e2s_conv(c2, c1, &s2, &s1) == 0){
3987                 s2e_conv(s2, s1, &c2, &c1);
3988             }
3989         }
3990 #endif
3991         if (c2 == 0) {
3992             output_mode = ASCII;
3993             (*o_putc)(c1);
3994         }else if (is_eucg3(c2)){
3995             if (x0212_f){
3996                 (*o_putc)(0x8f);
3997                 (*o_putc)((c2 & 0x7f) | 0x080);
3998                 (*o_putc)(c1 | 0x080);
3999             }
4000         }else{
4001             (*o_putc)((c2 & 0x7f) | 0x080);
4002             (*o_putc)(c1 | 0x080);
4003         }
4004 #endif
4005     } else {
4006         if (!nkf_isgraph(c1) || !nkf_isgraph(c2)) {
4007             set_iconv(FALSE, 0);
4008             return; /* too late to rescue this char */
4009         }
4010         output_mode = JAPANESE_EUC;
4011         (*o_putc)(c2 | 0x080);
4012         (*o_putc)(c1 | 0x080);
4013     }
4014 }
4015
4016 #ifdef X0212_ENABLE
4017 nkf_char x0212_shift(nkf_char c)
4018 {
4019     nkf_char ret = c;
4020     c &= 0x7f;
4021     if (is_eucg3(ret)){
4022         if (0x75 <= c && c <= 0x7f){
4023             ret = c + (0x109 - 0x75);
4024         }
4025     }else{
4026         if (0x75 <= c && c <= 0x7f){
4027             ret = c + (0x113 - 0x75);
4028         }
4029     }
4030     return ret;
4031 }
4032
4033
4034 nkf_char x0212_unshift(nkf_char c)
4035 {
4036     nkf_char ret = c;
4037     if (0x7f <= c && c <= 0x88){
4038         ret = c + (0x75 - 0x7f);
4039     }else if (0x89 <= c && c <= 0x92){
4040         ret = PREFIX_EUCG3 | 0x80 | (c + (0x75 - 0x89));
4041     }
4042     return ret;
4043 }
4044 #endif /* X0212_ENABLE */
4045
4046 nkf_char e2s_conv(nkf_char c2, nkf_char c1, nkf_char *p2, nkf_char *p1)
4047 {
4048     nkf_char ndx;
4049     if (is_eucg3(c2)){
4050         ndx = c2 & 0xff;
4051         if (x0213_f){
4052             if((0x21 <= ndx && ndx <= 0x2F)){
4053                 if (p2) *p2 = ((ndx - 1) >> 1) + 0xec - ndx / 8 * 3;
4054                 if (p1) *p1 = c1 + ((ndx & 1) ? ((c1 < 0x60) ? 0x1f : 0x20) : 0x7e);
4055                 return 0;
4056             }else if(0x6E <= ndx && ndx <= 0x7E){
4057                 if (p2) *p2 = ((ndx - 1) >> 1) + 0xbe;
4058                 if (p1) *p1 = c1 + ((ndx & 1) ? ((c1 < 0x60) ? 0x1f : 0x20) : 0x7e);
4059                 return 0;
4060             }
4061             return 1;
4062         }
4063 #ifdef X0212_ENABLE
4064         else if(nkf_isgraph(ndx)){
4065             nkf_char val = 0;
4066             const unsigned short *ptr;
4067 #if 0
4068             extern const unsigned short *const x0212_shiftjis[];
4069 #endif
4070             ptr = x0212_shiftjis[ndx - 0x21];
4071             if (ptr){
4072                 val = ptr[(c1 & 0x7f) - 0x21];
4073             }
4074             if (val){
4075                 c2 = val >> 8;
4076                 c1 = val & 0xff;
4077                 if (p2) *p2 = c2;
4078                 if (p1) *p1 = c1;
4079                 return 0;
4080             }
4081             c2 = x0212_shift(c2);
4082         }
4083 #endif /* X0212_ENABLE */
4084     }
4085     if(0x7F < c2) return 1;
4086     if (p2) *p2 = ((c2 - 1) >> 1) + ((c2 <= 0x5e) ? 0x71 : 0xb1);
4087     if (p1) *p1 = c1 + ((c2 & 1) ? ((c1 < 0x60) ? 0x1f : 0x20) : 0x7e);
4088     return 0;
4089 }
4090
4091 void s_oconv(nkf_char c2, nkf_char c1)
4092 {
4093 #ifdef NUMCHAR_OPTION
4094     if (c2 == 0 && is_unicode_capsule(c1)){
4095         w16e_conv(c1, &c2, &c1);
4096         if (c2 == 0 && is_unicode_capsule(c1)){
4097             c2 = c1 & VALUE_MASK;
4098             if (ms_ucs_map_f == UCS_MAP_CP932 &&
4099                 0xE000 <= c2 && c2 <= 0xE757) {
4100                 /* CP932 UDC */
4101                 c1 &= 0xFFF;
4102                 c2 = c1 / 188 + 0xF0;
4103                 c1 = c1 % 188;
4104                 c1 += 0x40 + (c1 > 0x3e);
4105             } else {
4106                 if(encode_fallback)(*encode_fallback)(c1);
4107                 return;
4108             }
4109         }
4110     }
4111 #endif
4112     if (c2 == EOF) {
4113         (*o_putc)(EOF);
4114         return;
4115     } else if (c2 == 0) {
4116         output_mode = ASCII;
4117         (*o_putc)(c1);
4118     } else if (c2 == X0201) {
4119         output_mode = SHIFT_JIS;
4120         (*o_putc)(c1|0x80);
4121     } else if (c2 == ISO8859_1) {
4122         output_mode = ISO8859_1;
4123         (*o_putc)(c1 | 0x080);
4124 #ifdef X0212_ENABLE
4125     } else if (is_eucg3(c2)){
4126         output_mode = SHIFT_JIS;
4127         if (e2s_conv(c2, c1, &c2, &c1) == 0){
4128             (*o_putc)(c2);
4129             (*o_putc)(c1);
4130         }
4131 #endif
4132     } else {
4133         if (!nkf_isprint(c1) || !nkf_isprint(c2)) {
4134             set_iconv(FALSE, 0);
4135             return; /* too late to rescue this char */
4136         }
4137         output_mode = SHIFT_JIS;
4138         e2s_conv(c2, c1, &c2, &c1);
4139
4140 #ifdef SHIFTJIS_CP932
4141         if (cp932inv_f
4142             && CP932INV_TABLE_BEGIN <= c2 && c2 <= CP932INV_TABLE_END){
4143 #if 0
4144             extern const unsigned short cp932inv[2][189];
4145 #endif
4146             nkf_char c = cp932inv[c2 - CP932INV_TABLE_BEGIN][c1 - 0x40];
4147             if (c){
4148                 c2 = c >> 8;
4149                 c1 = c & 0xff;
4150             }
4151         }
4152 #endif /* SHIFTJIS_CP932 */
4153
4154         (*o_putc)(c2);
4155         if (prefix_table[(unsigned char)c1]){
4156             (*o_putc)(prefix_table[(unsigned char)c1]);
4157         }
4158         (*o_putc)(c1);
4159     }
4160 }
4161
4162 void j_oconv(nkf_char c2, nkf_char c1)
4163 {
4164 #ifdef NUMCHAR_OPTION
4165     if (c2 == 0 && is_unicode_capsule(c1)){
4166         w16e_conv(c1, &c2, &c1);
4167         if (c2 == 0 && is_unicode_capsule(c1)){
4168             c2 = c1 & VALUE_MASK;
4169             if (ms_ucs_map_f == UCS_MAP_CP932 &&
4170                 0xE000 <= c2 && c2 <= 0xE757) {
4171                 /* CP5022x UDC */
4172                 c1 &= 0xFFF;
4173                 c2 = 0x7F + c1 / 94;
4174                 c1 = 0x21 + c1 % 94;
4175             } else {
4176                 if (encode_fallback) (*encode_fallback)(c1);
4177                 return;
4178             }
4179         }
4180     }
4181 #endif
4182     if (c2 == EOF) {
4183         if (output_mode !=ASCII && output_mode!=ISO8859_1) {
4184             (*o_putc)(ESC);
4185             (*o_putc)('(');
4186             (*o_putc)(ascii_intro);
4187             output_mode = ASCII;
4188         }
4189         (*o_putc)(EOF);
4190 #ifdef X0212_ENABLE
4191     } else if (is_eucg3(c2)){
4192         if(x0213_f){
4193             if(output_mode!=X0213_2){
4194                 output_mode = X0213_2;
4195                 (*o_putc)(ESC);
4196                 (*o_putc)('$');
4197                 (*o_putc)('(');
4198                 (*o_putc)(X0213_2&0x7F);
4199             }
4200         }else{
4201             if(output_mode!=X0212){
4202                 output_mode = X0212;
4203                 (*o_putc)(ESC);
4204                 (*o_putc)('$');
4205                 (*o_putc)('(');
4206                 (*o_putc)(X0212&0x7F);
4207             }
4208         }
4209         (*o_putc)(c2 & 0x7f);
4210         (*o_putc)(c1);
4211 #endif
4212     } else if (c2==X0201) {
4213         if (output_mode!=X0201) {
4214             output_mode = X0201;
4215             (*o_putc)(ESC);
4216             (*o_putc)('(');
4217             (*o_putc)('I');
4218         }
4219         (*o_putc)(c1);
4220     } else if (c2==ISO8859_1) {
4221             /* iso8859 introduction, or 8th bit on */
4222             /* Can we convert in 7bit form using ESC-'-'-A ? 
4223                Is this popular? */
4224         output_mode = ISO8859_1;
4225         (*o_putc)(c1|0x80);
4226     } else if (c2 == 0) {
4227         if (output_mode !=ASCII && output_mode!=ISO8859_1) {
4228             (*o_putc)(ESC);