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Commit | Line | Data |
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6dbe3af9 KZ |
1 | /* |
2 | * Copyright (c) 1980, 1993 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
fd6b7a7f | 34 | /* |
eb63b9b8 KZ |
35 | * modified by Kars de Jong <jongk@cs.utwente.nl> |
36 | * to use terminfo instead of termcap. | |
b50945d4 | 37 | * 1999-02-22 Arkadiusz MiĆkiewicz <misiek@pld.ORG.PL> |
eb63b9b8 KZ |
38 | * added Native Language Support |
39 | * 1999-09-19 Bruno Haible <haible@clisp.cons.org> | |
40 | * modified to work correctly in multi-byte locales | |
41 | */ | |
fd6b7a7f | 42 | |
6dbe3af9 | 43 | #include <stdio.h> |
fd6b7a7f | 44 | #include <unistd.h> /* for getopt(), isatty() */ |
c0f19ccf | 45 | #include <string.h> /* for memset(), strcpy() */ |
2b6fc908 | 46 | #include <stdlib.h> /* for getenv() */ |
5c36a0eb | 47 | #include <limits.h> /* for INT_MAX */ |
4727b169 | 48 | #include <signal.h> /* for signal() */ |
59f8c787 | 49 | #include <errno.h> |
a3b76180 | 50 | #include <getopt.h> |
fd6b7a7f | 51 | |
3947ca4c KZ |
52 | #if defined(HAVE_NCURSESW_TERM_H) |
53 | # include <ncursesw/term.h> | |
2ac1bc84 KZ |
54 | #elif defined(HAVE_NCURSES_TERM_H) |
55 | # include <ncurses/term.h> | |
3947ca4c KZ |
56 | #elif defined(HAVE_TERM_H) |
57 | # include <term.h> | |
2ac1bc84 KZ |
58 | #endif |
59 | ||
f0961db2 DB |
60 | #include "nls.h" |
61 | #include "xalloc.h" | |
eb63b9b8 | 62 | #include "widechar.h" |
eb76ca98 | 63 | #include "c.h" |
b87cbe84 | 64 | #include "closestream.h" |
eb63b9b8 | 65 | |
06b04b23 | 66 | #ifdef HAVE_WIDECHAR |
565239b0 SK |
67 | /* Output an ASCII character as a wide character */ |
68 | static int put1wc(int c) | |
eb63b9b8 | 69 | { |
565239b0 SK |
70 | if (putwchar(c) == WEOF) |
71 | return EOF; | |
72 | else | |
73 | return c; | |
eb63b9b8 | 74 | } |
cc319747 | 75 | #define putwp(s) tputs(s, STDOUT_FILENO, put1wc) |
eb63b9b8 KZ |
76 | #else |
77 | #define putwp(s) putp(s) | |
78 | #endif | |
79 | ||
a4949aaa | 80 | static int handle_escape(FILE * f); |
565239b0 SK |
81 | static void filter(FILE *f); |
82 | static void flushln(void); | |
83 | static void overstrike(void); | |
84 | static void iattr(void); | |
85 | static void initbuf(void); | |
86 | static void fwd(void); | |
87 | static void reverse(void); | |
88 | static void initinfo(void); | |
89 | static void outc(wint_t c, int width); | |
b0b24b11 | 90 | static void xsetmode(int newmode); |
66ee8158 KZ |
91 | static void setcol(int newcol); |
92 | static void needcol(int col); | |
4727b169 | 93 | static void sig_handler(int signo); |
cdbe31fc | 94 | static void print_out(char *line); |
6dbe3af9 KZ |
95 | |
96 | #define IESC '\033' | |
97 | #define SO '\016' | |
98 | #define SI '\017' | |
99 | #define HFWD '9' | |
100 | #define HREV '8' | |
101 | #define FREV '7' | |
6dbe3af9 KZ |
102 | |
103 | #define NORMAL 000 | |
104 | #define ALTSET 001 /* Reverse */ | |
105 | #define SUPERSC 002 /* Dim */ | |
106 | #define SUBSC 004 /* Dim | Ul */ | |
107 | #define UNDERL 010 /* Ul */ | |
108 | #define BOLD 020 /* Bold */ | |
109 | ||
2ba641e5 SK |
110 | static int must_use_uc, must_overstrike; |
111 | static char *CURS_UP, | |
112 | *CURS_RIGHT, | |
113 | *CURS_LEFT, | |
114 | *ENTER_STANDOUT, | |
115 | *EXIT_STANDOUT, | |
116 | *ENTER_UNDERLINE, | |
117 | *EXIT_UNDERLINE, | |
118 | *ENTER_DIM, | |
119 | *ENTER_BOLD, | |
120 | *ENTER_REVERSE, | |
121 | *UNDER_CHAR, | |
122 | *EXIT_ATTRIBUTES; | |
6dbe3af9 | 123 | |
2ba641e5 | 124 | struct CHAR { |
6dbe3af9 | 125 | char c_mode; |
eb63b9b8 | 126 | wchar_t c_char; |
66ee8158 | 127 | int c_width; |
565239b0 | 128 | }; |
6dbe3af9 | 129 | |
2ba641e5 SK |
130 | static struct CHAR *obuf; |
131 | static int obuflen; | |
132 | static int col, maxcol; | |
133 | static int mode; | |
134 | static int halfpos; | |
135 | static int upln; | |
136 | static int iflag; | |
6dbe3af9 | 137 | |
86be6a32 | 138 | static void __attribute__((__noreturn__)) usage(void) |
a3b76180 | 139 | { |
86be6a32 | 140 | FILE *out = stdout; |
a2343e03 KZ |
141 | fputs(USAGE_HEADER, out); |
142 | fprintf(out, _(" %s [options] [<file> ...]\n"), program_invocation_short_name); | |
a3b76180 | 143 | |
451dbcfa BS |
144 | fputs(USAGE_SEPARATOR, out); |
145 | fputs(_("Do underlining.\n"), out); | |
146 | ||
147 | fputs(USAGE_OPTIONS, out); | |
a2343e03 KZ |
148 | fputs(_(" -t, -T, --terminal TERMINAL override the TERM environment variable\n"), out); |
149 | fputs(_(" -i, --indicated underlining is indicated via a separate line\n"), out); | |
150 | fputs(USAGE_SEPARATOR, out); | |
f45f3ec3 | 151 | printf(USAGE_HELP_OPTIONS(30)); |
a2343e03 | 152 | |
f45f3ec3 | 153 | printf(USAGE_MAN_TAIL("ul(1)")); |
a3b76180 | 154 | |
86be6a32 | 155 | exit(EXIT_SUCCESS); |
a3b76180 SK |
156 | } |
157 | ||
fd6b7a7f | 158 | int main(int argc, char **argv) |
6dbe3af9 | 159 | { |
0200c801 | 160 | int c, ret, tflag = 0; |
6dbe3af9 KZ |
161 | char *termtype; |
162 | FILE *f; | |
6dbe3af9 | 163 | |
a3b76180 | 164 | static const struct option longopts[] = { |
87918040 SK |
165 | { "terminal", required_argument, NULL, 't' }, |
166 | { "indicated", no_argument, NULL, 'i' }, | |
167 | { "version", no_argument, NULL, 'V' }, | |
168 | { "help", no_argument, NULL, 'h' }, | |
169 | { NULL, 0, NULL, 0 } | |
a3b76180 SK |
170 | }; |
171 | ||
7eda085c KZ |
172 | setlocale(LC_ALL, ""); |
173 | bindtextdomain(PACKAGE, LOCALEDIR); | |
174 | textdomain(PACKAGE); | |
2c308875 | 175 | close_stdout_atexit(); |
7eda085c | 176 | |
4727b169 DB |
177 | signal(SIGINT, sig_handler); |
178 | signal(SIGTERM, sig_handler); | |
179 | ||
6dbe3af9 | 180 | termtype = getenv("TERM"); |
565239b0 | 181 | |
a3b76180 | 182 | while ((c = getopt_long(argc, argv, "it:T:Vh", longopts, NULL)) != -1) |
565239b0 | 183 | switch (c) { |
6dbe3af9 KZ |
184 | |
185 | case 't': | |
565239b0 SK |
186 | case 'T': |
187 | /* for nroff compatibility */ | |
188 | termtype = optarg; | |
0200c801 | 189 | tflag = 1; |
6dbe3af9 KZ |
190 | break; |
191 | case 'i': | |
192 | iflag = 1; | |
193 | break; | |
2c308875 | 194 | |
a3b76180 | 195 | case 'V': |
2c308875 | 196 | print_version(EXIT_SUCCESS); |
a3b76180 | 197 | case 'h': |
86be6a32 | 198 | usage(); |
6dbe3af9 | 199 | default: |
677ec86c | 200 | errtryhelp(EXIT_FAILURE); |
6dbe3af9 | 201 | } |
cc319747 | 202 | setupterm(termtype, STDOUT_FILENO, &ret); |
565239b0 | 203 | switch (ret) { |
6dbe3af9 KZ |
204 | |
205 | case 1: | |
206 | break; | |
207 | ||
208 | default: | |
59f8c787 | 209 | warnx(_("trouble reading terminfo")); |
b1557fe9 | 210 | /* fallthrough */ |
6dbe3af9 KZ |
211 | |
212 | case 0: | |
0200c801 SK |
213 | if (tflag) |
214 | warnx(_("terminal `%s' is not known, defaulting to `dumb'"), | |
215 | termtype); | |
565239b0 | 216 | setupterm("dumb", STDOUT_FILENO, (int *)0); |
6dbe3af9 KZ |
217 | break; |
218 | } | |
fd6b7a7f | 219 | initinfo(); |
565239b0 SK |
220 | if ((tigetflag("os") && ENTER_BOLD==NULL ) || |
221 | (tigetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL)) | |
222 | must_overstrike = 1; | |
6dbe3af9 KZ |
223 | initbuf(); |
224 | if (optind == argc) | |
225 | filter(stdin); | |
565239b0 SK |
226 | else |
227 | for (; optind < argc; optind++) { | |
228 | f = fopen(argv[optind],"r"); | |
229 | if (!f) | |
289dcc90 | 230 | err(EXIT_FAILURE, _("cannot open %s"), |
565239b0 SK |
231 | argv[optind]); |
232 | filter(f); | |
78b0fdd3 | 233 | fclose(f); |
565239b0 | 234 | } |
78b0fdd3 | 235 | free(obuf); |
59f8c787 | 236 | return EXIT_SUCCESS; |
6dbe3af9 KZ |
237 | } |
238 | ||
a4949aaa SK |
239 | static int handle_escape(FILE * f) |
240 | { | |
241 | wint_t c; | |
242 | ||
243 | switch (c = getwc(f)) { | |
244 | case HREV: | |
245 | if (halfpos == 0) { | |
246 | mode |= SUPERSC; | |
247 | halfpos--; | |
248 | } else if (halfpos > 0) { | |
249 | mode &= ~SUBSC; | |
250 | halfpos--; | |
251 | } else { | |
252 | halfpos = 0; | |
253 | reverse(); | |
254 | } | |
255 | return 0; | |
256 | case HFWD: | |
257 | if (halfpos == 0) { | |
258 | mode |= SUBSC; | |
259 | halfpos++; | |
260 | } else if (halfpos < 0) { | |
261 | mode &= ~SUPERSC; | |
262 | halfpos++; | |
263 | } else { | |
264 | halfpos = 0; | |
265 | fwd(); | |
266 | } | |
267 | return 0; | |
268 | case FREV: | |
269 | reverse(); | |
270 | return 0; | |
271 | default: | |
272 | /* unknown escape */ | |
273 | ungetwc(c, f); | |
274 | return 1; | |
275 | } | |
276 | } | |
277 | ||
565239b0 | 278 | static void filter(FILE *f) |
6dbe3af9 | 279 | { |
eb63b9b8 | 280 | wint_t c; |
66ee8158 | 281 | int i, w; |
6dbe3af9 | 282 | |
d07b2237 SK |
283 | while ((c = getwc(f)) != WEOF) { |
284 | switch (c) { | |
285 | case '\b': | |
286 | setcol(col - 1); | |
66ee8158 | 287 | continue; |
d07b2237 SK |
288 | case '\t': |
289 | setcol((col + 8) & ~07); | |
290 | continue; | |
291 | case '\r': | |
292 | setcol(0); | |
293 | continue; | |
294 | case SO: | |
295 | mode |= ALTSET; | |
296 | continue; | |
297 | case SI: | |
298 | mode &= ~ALTSET; | |
299 | continue; | |
300 | case IESC: | |
301 | if (handle_escape(f)) { | |
302 | c = getwc(f); | |
303 | errx(EXIT_FAILURE, | |
304 | _("unknown escape sequence in input: %o, %o"), IESC, c); | |
305 | } | |
306 | continue; | |
307 | case '_': | |
308 | if (obuf[col].c_char || obuf[col].c_width < 0) { | |
309 | while (col > 0 && obuf[col].c_width < 0) | |
310 | col--; | |
311 | w = obuf[col].c_width; | |
312 | for (i = 0; i < w; i++) | |
313 | obuf[col++].c_mode |= UNDERL | mode; | |
314 | setcol(col); | |
315 | continue; | |
316 | } | |
317 | obuf[col].c_char = '_'; | |
318 | obuf[col].c_width = 1; | |
b1557fe9 | 319 | /* fallthrough */ |
d07b2237 SK |
320 | case ' ': |
321 | setcol(col + 1); | |
322 | continue; | |
323 | case '\n': | |
324 | flushln(); | |
325 | continue; | |
326 | case '\f': | |
327 | flushln(); | |
328 | putwchar('\f'); | |
329 | continue; | |
330 | default: | |
331 | if (!iswprint(c)) | |
332 | /* non printable */ | |
333 | continue; | |
334 | w = wcwidth(c); | |
335 | needcol(col + w); | |
336 | if (obuf[col].c_char == '\0') { | |
337 | obuf[col].c_char = c; | |
338 | for (i = 0; i < w; i++) | |
339 | obuf[col + i].c_mode = mode; | |
340 | obuf[col].c_width = w; | |
341 | for (i = 1; i < w; i++) | |
342 | obuf[col + i].c_width = -1; | |
343 | } else if (obuf[col].c_char == '_') { | |
344 | obuf[col].c_char = c; | |
345 | for (i = 0; i < w; i++) | |
346 | obuf[col + i].c_mode |= UNDERL | mode; | |
347 | obuf[col].c_width = w; | |
348 | for (i = 1; i < w; i++) | |
349 | obuf[col + i].c_width = -1; | |
350 | } else if ((wint_t) obuf[col].c_char == c) { | |
351 | for (i = 0; i < w; i++) | |
352 | obuf[col + i].c_mode |= BOLD | mode; | |
353 | } else { | |
354 | w = obuf[col].c_width; | |
355 | for (i = 0; i < w; i++) | |
356 | obuf[col + i].c_mode = mode; | |
357 | } | |
358 | setcol(col + w); | |
6dbe3af9 | 359 | continue; |
66ee8158 | 360 | } |
6dbe3af9 KZ |
361 | } |
362 | if (maxcol) | |
363 | flushln(); | |
364 | } | |
365 | ||
565239b0 | 366 | static void flushln(void) |
6dbe3af9 | 367 | { |
5c36a0eb KZ |
368 | int lastmode; |
369 | int i; | |
6dbe3af9 KZ |
370 | int hadmodes = 0; |
371 | ||
372 | lastmode = NORMAL; | |
565239b0 | 373 | for (i = 0; i < maxcol; i++) { |
6dbe3af9 KZ |
374 | if (obuf[i].c_mode != lastmode) { |
375 | hadmodes++; | |
b0b24b11 | 376 | xsetmode(obuf[i].c_mode); |
6dbe3af9 KZ |
377 | lastmode = obuf[i].c_mode; |
378 | } | |
379 | if (obuf[i].c_char == '\0') { | |
5c36a0eb | 380 | if (upln) { |
cdbe31fc | 381 | print_out(CURS_RIGHT); |
5c36a0eb | 382 | } else |
66ee8158 | 383 | outc(' ', 1); |
6dbe3af9 | 384 | } else |
66ee8158 KZ |
385 | outc(obuf[i].c_char, obuf[i].c_width); |
386 | if (obuf[i].c_width > 1) | |
565239b0 | 387 | i += obuf[i].c_width - 1; |
6dbe3af9 KZ |
388 | } |
389 | if (lastmode != NORMAL) { | |
b0b24b11 | 390 | xsetmode(0); |
6dbe3af9 KZ |
391 | } |
392 | if (must_overstrike && hadmodes) | |
393 | overstrike(); | |
eb63b9b8 | 394 | putwchar('\n'); |
6dbe3af9 KZ |
395 | if (iflag && hadmodes) |
396 | iattr(); | |
565239b0 | 397 | fflush(stdout); |
6dbe3af9 KZ |
398 | if (upln) |
399 | upln--; | |
400 | initbuf(); | |
401 | } | |
402 | ||
403 | /* | |
404 | * For terminals that can overstrike, overstrike underlines and bolds. | |
405 | * We don't do anything with halfline ups and downs, or Greek. | |
406 | */ | |
565239b0 | 407 | static void overstrike(void) |
6dbe3af9 KZ |
408 | { |
409 | register int i; | |
b8b7f474 | 410 | register wchar_t *lbuf = xcalloc(maxcol + 1, sizeof(wchar_t)); |
eb63b9b8 | 411 | register wchar_t *cp = lbuf; |
6dbe3af9 KZ |
412 | int hadbold=0; |
413 | ||
414 | /* Set up overstrike buffer */ | |
565239b0 | 415 | for (i = 0; i < maxcol; i++) |
6dbe3af9 KZ |
416 | switch (obuf[i].c_mode) { |
417 | case NORMAL: | |
418 | default: | |
419 | *cp++ = ' '; | |
420 | break; | |
421 | case UNDERL: | |
422 | *cp++ = '_'; | |
423 | break; | |
424 | case BOLD: | |
425 | *cp++ = obuf[i].c_char; | |
66ee8158 KZ |
426 | if (obuf[i].c_width > 1) |
427 | i += obuf[i].c_width - 1; | |
6dbe3af9 KZ |
428 | hadbold=1; |
429 | break; | |
430 | } | |
eb63b9b8 | 431 | putwchar('\r'); |
565239b0 | 432 | for (*cp = ' '; *cp == ' '; cp--) |
6dbe3af9 | 433 | *cp = 0; |
67519cdd | 434 | fputws(lbuf, stdout); |
6dbe3af9 | 435 | if (hadbold) { |
eb63b9b8 | 436 | putwchar('\r'); |
565239b0 SK |
437 | for (cp = lbuf; *cp; cp++) |
438 | putwchar(*cp == '_' ? ' ' : *cp); | |
eb63b9b8 | 439 | putwchar('\r'); |
565239b0 SK |
440 | for (cp = lbuf; *cp; cp++) |
441 | putwchar(*cp == '_' ? ' ' : *cp); | |
6dbe3af9 | 442 | } |
f20b214e | 443 | free(lbuf); |
6dbe3af9 KZ |
444 | } |
445 | ||
565239b0 | 446 | static void iattr(void) |
6dbe3af9 KZ |
447 | { |
448 | register int i; | |
b8b7f474 | 449 | register wchar_t *lbuf = xcalloc(maxcol + 1, sizeof(wchar_t)); |
aa971f7d | 450 | register wchar_t *cp = lbuf; |
6dbe3af9 | 451 | |
565239b0 | 452 | for (i = 0; i < maxcol; i++) |
6dbe3af9 KZ |
453 | switch (obuf[i].c_mode) { |
454 | case NORMAL: *cp++ = ' '; break; | |
455 | case ALTSET: *cp++ = 'g'; break; | |
456 | case SUPERSC: *cp++ = '^'; break; | |
457 | case SUBSC: *cp++ = 'v'; break; | |
458 | case UNDERL: *cp++ = '_'; break; | |
459 | case BOLD: *cp++ = '!'; break; | |
460 | default: *cp++ = 'X'; break; | |
461 | } | |
565239b0 | 462 | for (*cp = ' '; *cp == ' '; cp--) |
6dbe3af9 | 463 | *cp = 0; |
67519cdd | 464 | fputws(lbuf, stdout); |
eb63b9b8 | 465 | putwchar('\n'); |
f20b214e | 466 | free(lbuf); |
6dbe3af9 KZ |
467 | } |
468 | ||
565239b0 | 469 | static void initbuf(void) |
6dbe3af9 | 470 | { |
565239b0 SK |
471 | if (obuf == NULL) { |
472 | /* First time. */ | |
cc319747 | 473 | obuflen = BUFSIZ; |
99361a9c SK |
474 | obuf = xcalloc(obuflen, sizeof(struct CHAR)); |
475 | } else | |
476 | /* assumes NORMAL == 0 */ | |
477 | memset(obuf, 0, sizeof(struct CHAR) * maxcol); | |
6dbe3af9 | 478 | |
5c36a0eb | 479 | setcol(0); |
6dbe3af9 KZ |
480 | maxcol = 0; |
481 | mode &= ALTSET; | |
482 | } | |
483 | ||
565239b0 | 484 | static void fwd(void) |
6dbe3af9 | 485 | { |
5c36a0eb | 486 | int oldcol, oldmax; |
6dbe3af9 KZ |
487 | |
488 | oldcol = col; | |
489 | oldmax = maxcol; | |
490 | flushln(); | |
5c36a0eb | 491 | setcol(oldcol); |
6dbe3af9 KZ |
492 | maxcol = oldmax; |
493 | } | |
494 | ||
565239b0 | 495 | static void reverse(void) |
6dbe3af9 KZ |
496 | { |
497 | upln++; | |
498 | fwd(); | |
cdbe31fc SK |
499 | print_out(CURS_UP); |
500 | print_out(CURS_UP); | |
6dbe3af9 KZ |
501 | upln++; |
502 | } | |
503 | ||
565239b0 | 504 | static void initinfo(void) |
6dbe3af9 | 505 | { |
fd6b7a7f KZ |
506 | CURS_UP = tigetstr("cuu1"); |
507 | CURS_RIGHT = tigetstr("cuf1"); | |
508 | CURS_LEFT = tigetstr("cub1"); | |
6dbe3af9 | 509 | if (CURS_LEFT == NULL) |
6dbe3af9 KZ |
510 | CURS_LEFT = "\b"; |
511 | ||
fd6b7a7f KZ |
512 | ENTER_STANDOUT = tigetstr("smso"); |
513 | EXIT_STANDOUT = tigetstr("rmso"); | |
514 | ENTER_UNDERLINE = tigetstr("smul"); | |
515 | EXIT_UNDERLINE = tigetstr("rmul"); | |
516 | ENTER_DIM = tigetstr("dim"); | |
517 | ENTER_BOLD = tigetstr("bold"); | |
518 | ENTER_REVERSE = tigetstr("rev"); | |
519 | EXIT_ATTRIBUTES = tigetstr("sgr0"); | |
6dbe3af9 KZ |
520 | |
521 | if (!ENTER_BOLD && ENTER_REVERSE) | |
522 | ENTER_BOLD = ENTER_REVERSE; | |
523 | if (!ENTER_BOLD && ENTER_STANDOUT) | |
524 | ENTER_BOLD = ENTER_STANDOUT; | |
525 | if (!ENTER_UNDERLINE && ENTER_STANDOUT) { | |
526 | ENTER_UNDERLINE = ENTER_STANDOUT; | |
527 | EXIT_UNDERLINE = EXIT_STANDOUT; | |
528 | } | |
529 | if (!ENTER_DIM && ENTER_STANDOUT) | |
530 | ENTER_DIM = ENTER_STANDOUT; | |
531 | if (!ENTER_REVERSE && ENTER_STANDOUT) | |
532 | ENTER_REVERSE = ENTER_STANDOUT; | |
533 | if (!EXIT_ATTRIBUTES && EXIT_STANDOUT) | |
534 | EXIT_ATTRIBUTES = EXIT_STANDOUT; | |
59f8c787 | 535 | |
6dbe3af9 KZ |
536 | /* |
537 | * Note that we use REVERSE for the alternate character set, | |
9e930041 | 538 | * not the as/ae capabilities. This is because we are modeling |
6dbe3af9 KZ |
539 | * the model 37 teletype (since that's what nroff outputs) and |
540 | * the typical as/ae is more of a graphics set, not the greek | |
541 | * letters the 37 has. | |
542 | */ | |
543 | ||
fd6b7a7f | 544 | UNDER_CHAR = tigetstr("uc"); |
6dbe3af9 KZ |
545 | must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE); |
546 | } | |
547 | ||
6dbe3af9 KZ |
548 | static int curmode = 0; |
549 | ||
565239b0 | 550 | static void outc(wint_t c, int width) { |
66ee8158 KZ |
551 | int i; |
552 | ||
eb63b9b8 | 553 | putwchar(c); |
6dbe3af9 | 554 | if (must_use_uc && (curmode&UNDERL)) { |
565239b0 | 555 | for (i = 0; i < width; i++) |
cdbe31fc | 556 | print_out(CURS_LEFT); |
565239b0 | 557 | for (i = 0; i < width; i++) |
cdbe31fc | 558 | print_out(UNDER_CHAR); |
6dbe3af9 KZ |
559 | } |
560 | } | |
561 | ||
b0b24b11 | 562 | static void xsetmode(int newmode) |
6dbe3af9 KZ |
563 | { |
564 | if (!iflag) { | |
565 | if (curmode != NORMAL && newmode != NORMAL) | |
b0b24b11 | 566 | xsetmode(NORMAL); |
6dbe3af9 KZ |
567 | switch (newmode) { |
568 | case NORMAL: | |
565239b0 | 569 | switch (curmode) { |
6dbe3af9 KZ |
570 | case NORMAL: |
571 | break; | |
572 | case UNDERL: | |
cdbe31fc | 573 | print_out(EXIT_UNDERLINE); |
6dbe3af9 KZ |
574 | break; |
575 | default: | |
576 | /* This includes standout */ | |
cdbe31fc | 577 | print_out(EXIT_ATTRIBUTES); |
6dbe3af9 KZ |
578 | break; |
579 | } | |
580 | break; | |
581 | case ALTSET: | |
cdbe31fc | 582 | print_out(ENTER_REVERSE); |
6dbe3af9 KZ |
583 | break; |
584 | case SUPERSC: | |
585 | /* | |
586 | * This only works on a few terminals. | |
587 | * It should be fixed. | |
588 | */ | |
cdbe31fc SK |
589 | print_out(ENTER_UNDERLINE); |
590 | print_out(ENTER_DIM); | |
6dbe3af9 KZ |
591 | break; |
592 | case SUBSC: | |
cdbe31fc | 593 | print_out(ENTER_DIM); |
6dbe3af9 KZ |
594 | break; |
595 | case UNDERL: | |
cdbe31fc | 596 | print_out(ENTER_UNDERLINE); |
6dbe3af9 KZ |
597 | break; |
598 | case BOLD: | |
cdbe31fc | 599 | print_out(ENTER_BOLD); |
6dbe3af9 KZ |
600 | break; |
601 | default: | |
602 | /* | |
603 | * We should have some provision here for multiple modes | |
604 | * on at once. This will have to come later. | |
605 | */ | |
cdbe31fc | 606 | print_out(ENTER_STANDOUT); |
6dbe3af9 KZ |
607 | break; |
608 | } | |
609 | } | |
610 | curmode = newmode; | |
611 | } | |
5c36a0eb | 612 | |
565239b0 | 613 | static void setcol(int newcol) { |
5c36a0eb KZ |
614 | col = newcol; |
615 | ||
616 | if (col < 0) | |
617 | col = 0; | |
66ee8158 KZ |
618 | else if (col > maxcol) |
619 | needcol(col); | |
620 | } | |
5c36a0eb | 621 | |
72851044 SK |
622 | static void needcol(int acol) { |
623 | maxcol = acol; | |
66ee8158 KZ |
624 | |
625 | /* If col >= obuflen, expand obuf until obuflen > col. */ | |
72851044 | 626 | while (acol >= obuflen) { |
66ee8158 | 627 | /* Paranoid check for obuflen == INT_MAX. */ |
59f8c787 KZ |
628 | if (obuflen == INT_MAX) |
629 | errx(EXIT_FAILURE, _("Input line too long.")); | |
66ee8158 KZ |
630 | |
631 | /* Similar paranoia: double only up to INT_MAX. */ | |
565239b0 SK |
632 | if (obuflen < (INT_MAX / 2)) |
633 | obuflen *= 2; | |
634 | else | |
635 | obuflen = INT_MAX; | |
66ee8158 KZ |
636 | |
637 | /* Now we can try to expand obuf. */ | |
f0961db2 | 638 | obuf = xrealloc(obuf, sizeof(struct CHAR) * obuflen); |
5c36a0eb KZ |
639 | } |
640 | } | |
4727b169 | 641 | |
2afa872f | 642 | static void sig_handler(int signo __attribute__ ((__unused__))) |
4727b169 | 643 | { |
50644ff4 | 644 | _exit(EXIT_SUCCESS); |
4727b169 DB |
645 | } |
646 | ||
cdbe31fc SK |
647 | static void print_out(char *line) |
648 | { | |
649 | if (line == NULL) | |
650 | return; | |
651 | ||
652 | putwp(line); | |
653 | } |