freebsd-dev/usr.bin/tput/tput.c
2006-10-12 21:10:55 +00:00

217 lines
5.3 KiB
C

/*-
* Copyright (c) 1980, 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1980, 1988, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif
#ifndef lint
static const char sccsid[] = "@(#)tput.c 8.2 (Berkeley) 3/19/94";
#endif
#include <termios.h>
#include <err.h>
#include <termcap.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#undef putchar
#define outc putchar
static void prlongname(char *);
static void usage(void);
static char **process(const char *, char *, char **);
int
main(int argc, char **argv)
{
int ch, exitval, n;
char *cptr, *term, buf[1024], tbuf[1024];
const char *p;
term = NULL;
while ((ch = getopt(argc, argv, "T:")) != -1)
switch(ch) {
case 'T':
term = optarg;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc < 1)
usage();
if (!term && !(term = getenv("TERM")))
errx(2, "no terminal type specified and no TERM environmental variable.");
if (tgetent(tbuf, term) != 1)
err(3, "tgetent failure");
for (exitval = 0; (p = *argv) != NULL; ++argv) {
switch (*p) {
case 'c':
if (!strcmp(p, "clear"))
p = "cl";
break;
case 'i':
if (!strcmp(p, "init"))
p = "is";
break;
case 'l':
if (!strcmp(p, "longname")) {
prlongname(tbuf);
continue;
}
break;
case 'r':
if (!strcmp(p, "reset"))
p = "rs";
break;
}
cptr = buf;
if (tgetstr(p, &cptr))
argv = process(p, buf, argv);
else if ((n = tgetnum(p)) != -1)
(void)printf("%d\n", n);
else
exitval = !tgetflag(p);
}
exit(exitval);
}
static void
prlongname(char *buf)
{
int savech;
char *p, *savep;
for (p = buf; *p && *p != ':'; ++p);
savech = *(savep = p);
for (*p = '\0'; p >= buf && *p != '|'; --p);
(void)printf("%s\n", p + 1);
*savep = savech;
}
static char **
process(const char *cap, char *str, char **argv)
{
static const char errfew[] =
"not enough arguments (%d) for capability `%s'";
static const char errmany[] =
"too many arguments (%d) for capability `%s'";
static const char erresc[] =
"unknown %% escape `%c' for capability `%s'";
char *cp;
int arg_need, arg_rows, arg_cols;
/* Count how many values we need for this capability. */
for (cp = str, arg_need = 0; *cp != '\0'; cp++)
if (*cp == '%')
switch (*++cp) {
case 'd':
case '2':
case '3':
case '.':
case '+':
arg_need++;
break;
case '%':
case '>':
case 'i':
case 'r':
case 'n':
case 'B':
case 'D':
break;
case 'p':
if (cp[1]) {
cp++;
break;
}
default:
/*
* hpux has lot's of them, but we complain
*/
warnx(erresc, *cp, cap);
}
/* And print them. */
switch (arg_need) {
case 0:
(void)tputs(str, 1, outc);
break;
case 1:
arg_cols = 0;
if (*++argv == NULL || *argv[0] == '\0')
errx(2, errfew, 1, cap);
arg_rows = atoi(*argv);
(void)tputs(tgoto(str, arg_cols, arg_rows), 1, outc);
break;
case 2:
if (*++argv == NULL || *argv[0] == '\0')
errx(2, errfew, 2, cap);
arg_cols = atoi(*argv);
if (*++argv == NULL || *argv[0] == '\0')
errx(2, errfew, 2, cap);
arg_rows = atoi(*argv);
(void) tputs(tgoto(str, arg_cols, arg_rows), arg_rows, outc);
break;
default:
errx(2, errmany, arg_need, cap);
}
return (argv);
}
static void
usage(void)
{
(void)fprintf(stderr, "usage: tput [-T term] attribute ...\n");
exit(2);
}