2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
35 static const char copyright[] =
36 "@(#) Copyright (c) 1980, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)ul.c 8.1 (Berkeley) 6/6/93";
44 static const char rcsid[] =
67 #define ALTSET 001 /* Reverse */
68 #define SUPERSC 002 /* Dim */
69 #define SUBSC 004 /* Dim | Ul */
70 #define UNDERL 010 /* Ul */
71 #define BOLD 020 /* Bold */
73 int must_use_uc, must_overstrike;
75 *CURS_UP, *CURS_RIGHT, *CURS_LEFT,
76 *ENTER_STANDOUT, *EXIT_STANDOUT, *ENTER_UNDERLINE, *EXIT_UNDERLINE,
77 *ENTER_DIM, *ENTER_BOLD, *ENTER_REVERSE, *UNDER_CHAR, *EXIT_ATTRIBUTES;
82 int c_width; /* width or -1 if multi-column char. filler */
85 struct CHAR obuf[MAXBUF];
92 static void usage(void);
100 void overstrike(void);
103 void outc(wint_t, int);
105 #define PRINT(s) if (s == NULL) /* void */; else tputs(s, 1, outchar)
108 main(int argc, char **argv)
111 const char *termtype;
115 setlocale(LC_ALL, "");
117 termtype = getenv("TERM");
118 if (termtype == NULL || (argv[0][0] == 'c' && !isatty(1)))
120 while ((c=getopt(argc, argv, "it:T:")) != -1)
124 case 'T': /* for nroff compatibility */
134 switch(tgetent(termcap, termtype)) {
140 warnx("trouble reading termcap");
144 /* No such terminal type - assume dumb */
145 (void)strcpy(termcap, "dumb:os:col#80:cr=^M:sf=^J:am:");
149 if ( (tgetflag("os") && ENTER_BOLD==NULL ) ||
150 (tgetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL))
155 else for (; optind<argc; optind++) {
156 f = fopen(argv[optind],"r");
158 err(1, "%s", argv[optind]);
168 fprintf(stderr, "usage: ul [-i] [-t terminal] [file ...]\n");
178 while ((c = getwc(f)) != WEOF && col < MAXBUF) switch(c) {
204 switch (c = getwc(f)) {
210 } else if (halfpos > 0) {
223 } else if (halfpos < 0) {
237 errx(1, "unknown escape sequence in input: %o, %o", IESC, c);
242 if (obuf[col].c_char || obuf[col].c_width < 0) {
243 while (col > 0 && obuf[col].c_width < 0)
245 w = obuf[col].c_width;
246 for (i = 0; i < w; i++)
247 obuf[col++].c_mode |= UNDERL | mode;
252 obuf[col].c_char = '_';
253 obuf[col].c_width = 1;
271 if ((w = wcwidth(c)) <= 0) /* non printing */
273 if (obuf[col].c_char == '\0') {
274 obuf[col].c_char = c;
275 for (i = 0; i < w; i++)
276 obuf[col + i].c_mode = mode;
277 obuf[col].c_width = w;
278 for (i = 1; i < w; i++)
279 obuf[col + i].c_width = -1;
280 } else if (obuf[col].c_char == '_') {
281 obuf[col].c_char = c;
282 for (i = 0; i < w; i++)
283 obuf[col + i].c_mode |= UNDERL|mode;
284 obuf[col].c_width = w;
285 for (i = 1; i < w; i++)
286 obuf[col + i].c_width = -1;
287 } else if (obuf[col].c_char == c) {
288 for (i = 0; i < w; i++)
289 obuf[col + i].c_mode |= BOLD|mode;
291 w = obuf[col].c_width;
292 for (i = 0; i < w; i++)
293 obuf[col + i].c_mode = mode;
314 for (i=0; i<maxcol; i++) {
315 if (obuf[i].c_mode != lastmode) {
317 setnewmode(obuf[i].c_mode);
318 lastmode = obuf[i].c_mode;
320 if (obuf[i].c_char == '\0') {
326 outc(obuf[i].c_char, obuf[i].c_width);
327 if (obuf[i].c_width > 1)
328 i += obuf[i].c_width - 1;
330 if (lastmode != NORMAL) {
333 if (must_overstrike && hadmodes)
336 if (iflag && hadmodes)
338 (void)fflush(stdout);
345 * For terminals that can overstrike, overstrike underlines and bolds.
346 * We don't do anything with halfline ups and downs, or Greek.
356 /* Set up overstrike buffer */
357 for (i=0; i<maxcol; i++)
358 switch (obuf[i].c_mode) {
367 *cp++ = obuf[i].c_char;
368 if (obuf[i].c_width > 1)
369 i += obuf[i].c_width - 1;
374 for (*cp=' '; *cp==' '; cp--)
376 for (cp=lbuf; *cp; cp++)
380 for (cp=lbuf; *cp; cp++)
381 putwchar(*cp=='_' ? ' ' : *cp);
383 for (cp=lbuf; *cp; cp++)
384 putwchar(*cp=='_' ? ' ' : *cp);
395 for (i=0; i<maxcol; i++)
396 switch (obuf[i].c_mode) {
397 case NORMAL: *cp++ = ' '; break;
398 case ALTSET: *cp++ = 'g'; break;
399 case SUPERSC: *cp++ = '^'; break;
400 case SUBSC: *cp++ = 'v'; break;
401 case UNDERL: *cp++ = '_'; break;
402 case BOLD: *cp++ = '!'; break;
403 default: *cp++ = 'X'; break;
405 for (*cp=' '; *cp==' '; cp--)
407 for (cp=lbuf; *cp; cp++)
416 bzero((char *)obuf, sizeof (obuf)); /* depends on NORMAL == 0 */
447 static char tcapbuf[512];
450 /* This nonsense attempts to work with both old and new termcap */
451 CURS_UP = tgetstr("up", &bp);
452 CURS_RIGHT = tgetstr("ri", &bp);
453 if (CURS_RIGHT == NULL)
454 CURS_RIGHT = tgetstr("nd", &bp);
455 CURS_LEFT = tgetstr("le", &bp);
456 if (CURS_LEFT == NULL)
457 CURS_LEFT = tgetstr("bc", &bp);
458 if (CURS_LEFT == NULL && tgetflag("bs"))
461 ENTER_STANDOUT = tgetstr("so", &bp);
462 EXIT_STANDOUT = tgetstr("se", &bp);
463 ENTER_UNDERLINE = tgetstr("us", &bp);
464 EXIT_UNDERLINE = tgetstr("ue", &bp);
465 ENTER_DIM = tgetstr("mh", &bp);
466 ENTER_BOLD = tgetstr("md", &bp);
467 ENTER_REVERSE = tgetstr("mr", &bp);
468 EXIT_ATTRIBUTES = tgetstr("me", &bp);
470 if (!ENTER_BOLD && ENTER_REVERSE)
471 ENTER_BOLD = ENTER_REVERSE;
472 if (!ENTER_BOLD && ENTER_STANDOUT)
473 ENTER_BOLD = ENTER_STANDOUT;
474 if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
475 ENTER_UNDERLINE = ENTER_STANDOUT;
476 EXIT_UNDERLINE = EXIT_STANDOUT;
478 if (!ENTER_DIM && ENTER_STANDOUT)
479 ENTER_DIM = ENTER_STANDOUT;
480 if (!ENTER_REVERSE && ENTER_STANDOUT)
481 ENTER_REVERSE = ENTER_STANDOUT;
482 if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
483 EXIT_ATTRIBUTES = EXIT_STANDOUT;
486 * Note that we use REVERSE for the alternate character set,
487 * not the as/ae capabilities. This is because we are modelling
488 * the model 37 teletype (since that's what nroff outputs) and
489 * the typical as/ae is more of a graphics set, not the greek
490 * letters the 37 has.
493 UNDER_CHAR = tgetstr("uc", &bp);
494 must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
500 return (putwchar(c) != WEOF ? c : EOF);
503 static int curmode = 0;
506 outc(wint_t c, int width)
511 if (must_use_uc && (curmode&UNDERL)) {
512 for (i = 0; i < width; i++)
514 for (i = 0; i < width; i++)
520 setnewmode(int newmode)
523 if (curmode != NORMAL && newmode != NORMAL)
531 PRINT(EXIT_UNDERLINE);
534 /* This includes standout */
535 PRINT(EXIT_ATTRIBUTES);
540 PRINT(ENTER_REVERSE);
544 * This only works on a few terminals.
545 * It should be fixed.
547 PRINT(ENTER_UNDERLINE);
554 PRINT(ENTER_UNDERLINE);
561 * We should have some provision here for multiple modes
562 * on at once. This will have to come later.
564 PRINT(ENTER_STANDOUT);