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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)ul.c 8.1 (Berkeley) 6/6/93
31 * FreeBSD: head/usr.bin/ul/ul.c 245093 2013-01-06 03:08:27Z andrew $
53 #define ALTSET 001 /* Reverse */
54 #define SUPERSC 002 /* Dim */
55 #define SUBSC 004 /* Dim | Ul */
56 #define UNDERL 010 /* Ul */
57 #define BOLD 020 /* Bold */
59 static int must_use_uc, must_overstrike;
61 *CURS_UP, *CURS_RIGHT, *CURS_LEFT,
62 *ENTER_STANDOUT, *EXIT_STANDOUT, *ENTER_UNDERLINE, *EXIT_UNDERLINE,
63 *ENTER_DIM, *ENTER_BOLD, *ENTER_REVERSE, *UNDER_CHAR, *EXIT_ATTRIBUTES;
68 int c_width; /* width or -1 if multi-column char. filler */
71 static struct CHAR obuf[MAXBUF];
72 static int col, maxcol;
78 static void usage(void);
79 static void setnewmode(int);
80 static void initcap(void);
81 static void reverse(void);
82 static int outchar(int);
83 static void fwd(void);
84 static void initbuf(void);
85 static void iattr(void);
86 static void overstrike(void);
87 static void flushln(void);
88 static void filter(FILE *);
89 static void outc(wint_t, int);
91 #define PRINT(s) if (s == NULL) /* void */; else tputs(s, 1, outchar)
94 main(int argc, char **argv)
101 setlocale(LC_ALL, "");
103 termtype = getenv("TERM");
104 if (termtype == NULL || (argv[0][0] == 'c' && !isatty(1)))
106 while ((c=getopt(argc, argv, "it:T:")) != -1)
110 case 'T': /* for nroff compatibility */
120 switch(tgetent(termcap, termtype)) {
126 warnx("trouble reading termcap");
130 /* No such terminal type - assume dumb */
131 (void)strcpy(termcap, "dumb:os:col#80:cr=^M:sf=^J:am:");
135 if ( (tgetflag("os") && ENTER_BOLD==NULL ) ||
136 (tgetflag("ul") && ENTER_UNDERLINE==NULL && UNDER_CHAR==NULL))
141 else for (; optind<argc; optind++) {
142 f = fopen(argv[optind],"r");
144 err(1, "%s", argv[optind]);
154 fprintf(stderr, "usage: ul [-i] [-t terminal] [file ...]\n");
164 while ((c = getwc(f)) != WEOF && col < MAXBUF) switch(c) {
190 switch (c = getwc(f)) {
196 } else if (halfpos > 0) {
209 } else if (halfpos < 0) {
223 errx(1, "unknown escape sequence in input: %o, %o", IESC, c);
228 if (obuf[col].c_char || obuf[col].c_width < 0) {
229 while (col > 0 && obuf[col].c_width < 0)
231 w = obuf[col].c_width;
232 for (i = 0; i < w; i++)
233 obuf[col++].c_mode |= UNDERL | mode;
238 obuf[col].c_char = '_';
239 obuf[col].c_width = 1;
257 if ((w = wcwidth(c)) <= 0) /* non printing */
259 if (obuf[col].c_char == '\0') {
260 obuf[col].c_char = c;
261 for (i = 0; i < w; i++)
262 obuf[col + i].c_mode = mode;
263 obuf[col].c_width = w;
264 for (i = 1; i < w; i++)
265 obuf[col + i].c_width = -1;
266 } else if (obuf[col].c_char == '_') {
267 obuf[col].c_char = c;
268 for (i = 0; i < w; i++)
269 obuf[col + i].c_mode |= UNDERL|mode;
270 obuf[col].c_width = w;
271 for (i = 1; i < w; i++)
272 obuf[col + i].c_width = -1;
273 } else if ((wint_t)obuf[col].c_char == c) {
274 for (i = 0; i < w; i++)
275 obuf[col + i].c_mode |= BOLD|mode;
277 w = obuf[col].c_width;
278 for (i = 0; i < w; i++)
279 obuf[col + i].c_mode = mode;
300 for (i=0; i<maxcol; i++) {
301 if (obuf[i].c_mode != lastmode) {
303 setnewmode(obuf[i].c_mode);
304 lastmode = obuf[i].c_mode;
306 if (obuf[i].c_char == '\0') {
312 outc(obuf[i].c_char, obuf[i].c_width);
313 if (obuf[i].c_width > 1)
314 i += obuf[i].c_width - 1;
316 if (lastmode != NORMAL) {
319 if (must_overstrike && hadmodes)
322 if (iflag && hadmodes)
324 (void)fflush(stdout);
331 * For terminals that can overstrike, overstrike underlines and bolds.
332 * We don't do anything with halfline ups and downs, or Greek.
342 /* Set up overstrike buffer */
343 for (i=0; i<maxcol; i++)
344 switch (obuf[i].c_mode) {
353 *cp++ = obuf[i].c_char;
354 if (obuf[i].c_width > 1)
355 i += obuf[i].c_width - 1;
360 for (*cp=' '; *cp==' '; cp--)
362 for (cp=lbuf; *cp; cp++)
366 for (cp=lbuf; *cp; cp++)
367 putwchar(*cp=='_' ? ' ' : *cp);
369 for (cp=lbuf; *cp; cp++)
370 putwchar(*cp=='_' ? ' ' : *cp);
381 for (i=0; i<maxcol; i++)
382 switch (obuf[i].c_mode) {
383 case NORMAL: *cp++ = ' '; break;
384 case ALTSET: *cp++ = 'g'; break;
385 case SUPERSC: *cp++ = '^'; break;
386 case SUBSC: *cp++ = 'v'; break;
387 case UNDERL: *cp++ = '_'; break;
388 case BOLD: *cp++ = '!'; break;
389 default: *cp++ = 'X'; break;
391 for (*cp=' '; *cp==' '; cp--)
393 for (cp=lbuf; *cp; cp++)
402 bzero((char *)obuf, sizeof (obuf)); /* depends on NORMAL == 0 */
433 static char tcapbuf[512];
436 /* This nonsense attempts to work with both old and new termcap */
437 CURS_UP = tgetstr("up", &bp);
438 CURS_RIGHT = tgetstr("ri", &bp);
439 if (CURS_RIGHT == NULL)
440 CURS_RIGHT = tgetstr("nd", &bp);
441 CURS_LEFT = tgetstr("le", &bp);
442 if (CURS_LEFT == NULL)
443 CURS_LEFT = tgetstr("bc", &bp);
444 if (CURS_LEFT == NULL && tgetflag("bs"))
447 ENTER_STANDOUT = tgetstr("so", &bp);
448 EXIT_STANDOUT = tgetstr("se", &bp);
449 ENTER_UNDERLINE = tgetstr("us", &bp);
450 EXIT_UNDERLINE = tgetstr("ue", &bp);
451 ENTER_DIM = tgetstr("mh", &bp);
452 ENTER_BOLD = tgetstr("md", &bp);
453 ENTER_REVERSE = tgetstr("mr", &bp);
454 EXIT_ATTRIBUTES = tgetstr("me", &bp);
456 if (!ENTER_BOLD && ENTER_REVERSE)
457 ENTER_BOLD = ENTER_REVERSE;
458 if (!ENTER_BOLD && ENTER_STANDOUT)
459 ENTER_BOLD = ENTER_STANDOUT;
460 if (!ENTER_UNDERLINE && ENTER_STANDOUT) {
461 ENTER_UNDERLINE = ENTER_STANDOUT;
462 EXIT_UNDERLINE = EXIT_STANDOUT;
464 if (!ENTER_DIM && ENTER_STANDOUT)
465 ENTER_DIM = ENTER_STANDOUT;
466 if (!ENTER_REVERSE && ENTER_STANDOUT)
467 ENTER_REVERSE = ENTER_STANDOUT;
468 if (!EXIT_ATTRIBUTES && EXIT_STANDOUT)
469 EXIT_ATTRIBUTES = EXIT_STANDOUT;
472 * Note that we use REVERSE for the alternate character set,
473 * not the as/ae capabilities. This is because we are modelling
474 * the model 37 teletype (since that's what nroff outputs) and
475 * the typical as/ae is more of a graphics set, not the greek
476 * letters the 37 has.
479 UNDER_CHAR = tgetstr("uc", &bp);
480 must_use_uc = (UNDER_CHAR && !ENTER_UNDERLINE);
486 return (putwchar(c) != WEOF ? c : EOF);
489 static int curmode = 0;
492 outc(wint_t c, int width)
497 if (must_use_uc && (curmode&UNDERL)) {
498 for (i = 0; i < width; i++)
500 for (i = 0; i < width; i++)
506 setnewmode(int newmode)
509 if (curmode != NORMAL && newmode != NORMAL)
517 PRINT(EXIT_UNDERLINE);
520 /* This includes standout */
521 PRINT(EXIT_ATTRIBUTES);
526 PRINT(ENTER_REVERSE);
530 * This only works on a few terminals.
531 * It should be fixed.
533 PRINT(ENTER_UNDERLINE);
540 PRINT(ENTER_UNDERLINE);
547 * We should have some provision here for multiple modes
548 * on at once. This will have to come later.
550 PRINT(ENTER_STANDOUT);