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/*
* termcap.c - termcap manipulation through curses
*
* This file is part of zsh, the Z shell.
*
* Copyright (c) 1992-1997 Paul Falstad
* All rights reserved.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and to distribute modified versions of this software for any
* purpose, provided that the above copyright notice and the following
* two paragraphs appear in all copies of this software.
*
* In no event shall Paul Falstad or the Zsh Development Group be liable
* to any party for direct, indirect, special, incidental, or consequential
* damages arising out of the use of this software and its documentation,
* even if Paul Falstad and the Zsh Development Group have been advised of
* the possibility of such damage.
*
* Paul Falstad and the Zsh Development Group specifically disclaim any
* warranties, including, but not limited to, the implied warranties of
* merchantability and fitness for a particular purpose. The software
* provided hereunder is on an "as is" basis, and Paul Falstad and the
* Zsh Development Group have no obligation to provide maintenance,
* support, updates, enhancements, or modifications.
*
*/
#include "termcap.mdh"
#include "termcap.pro"
/* echotc: output a termcap */
#ifdef HAVE_TGETENT
/**/
static int
bin_echotc(char *name, char **argv, char *ops, int func)
{
char *s, buf[2048], *t, *u;
int num, argct;
s = *argv++;
if (termflags & TERM_BAD)
return 1;
if ((termflags & TERM_UNKNOWN) && (isset(INTERACTIVE) || !init_term()))
return 1;
/* if the specified termcap has a numeric value, display it */
if ((num = tgetnum(s)) != -1) {
printf("%d\n", num);
return 0;
}
/* if the specified termcap is boolean, and set, say so *
* ncurses can tell if an existing boolean capability is *
* off so in this case we print "no". */
#if !defined(NCURSES_VERSION) || !defined(COLOR_PAIR)
if (tgetflag(s) > 0) {
puts("yes");
return (0);
}
#else /* NCURSES_VERSION && COLOR_PAIR */
switch (tgetflag(s)) {
case -1:
break;
case 0:
puts("no");
return 0;
default:
puts("yes");
return 0;
}
#endif /* NCURSES_VERSION && COLOR_PAIR */
/* get a string-type capability */
u = buf;
t = tgetstr(s, &u);
if (!t || !*t) {
/* capability doesn't exist, or (if boolean) is off */
zwarnnam(name, "no such capability: %s", s, 0);
return 1;
}
/* count the number of arguments required */
for (argct = 0, u = t; *u; u++)
if (*u == '%') {
if (u++, (*u == 'd' || *u == '2' || *u == '3' || *u == '.' ||
*u == '+'))
argct++;
}
/* check that the number of arguments provided is correct */
if (arrlen(argv) != argct) {
zwarnnam(name, (arrlen(argv) < argct) ? "not enough arguments" :
"too many arguments", NULL, 0);
return 1;
}
/* output string, through the proper termcap functions */
if (!argct)
tputs(t, 1, putraw);
else {
num = (argv[1]) ? atoi(argv[1]) : atoi(*argv);
tputs(tgoto(t, atoi(*argv), num), num, putraw);
}
return 0;
}
#else /* ! HAVE_TGETENT */
#define bin_echotc bin_notavail
#endif /* HAVE_TGETENT */
static struct builtin bintab[] = {
BUILTIN("echotc", 0, bin_echotc, 1, -1, 0, NULL, NULL),
};
/**/
int
setup_(Module m)
{
return 0;
}
/**/
int
boot_(Module m)
{
return !addbuiltins(m->nam, bintab, sizeof(bintab)/sizeof(*bintab));
}
/**/
int
cleanup_(Module m)
{
deletebuiltins(m->nam, bintab, sizeof(bintab)/sizeof(*bintab));
return 0;
}
/**/
int
finish_(Module m)
{
return 0;
}
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