mirror of
https://github.com/Aigor44/ncursesw-morphos.git
synced 2024-11-27 06:49:54 +08:00
c2650100f8
+ improve parameter-checking in tput by forcing it to analyze any extended string capability, e.g., as used in the Cs and Ms capabilities of the tmux description (report by Brad Town, cf: 20200531). + remove an incorrect free in the fallback (non-checking) version of _nc_free_and_exit (report by Miroslav Lichvar). + correct use-ordering in some xterm-direct flavors -TD + add hterm, hterm-256color (Mike Frysinger) + if the build-time compiler accepts c11's _Noreturn keyword, use that rather than gcc's attribute. + change configure-check for gcc's noreturn attribute to assume it is a prefix rather than suffix, matching c11's _Noreturn convention. + add "lint" rule to c++/Makefile, e.g., with cppcheck.
109 lines
3.9 KiB
C
109 lines
3.9 KiB
C
/****************************************************************************
|
|
* Copyright 2020,2021 Thomas E. Dickey *
|
|
* Copyright 1998-2016,2017 Free Software Foundation, Inc. *
|
|
* *
|
|
* Permission is hereby granted, free of charge, to any person obtaining a *
|
|
* copy of this software and associated documentation files (the *
|
|
* "Software"), to deal in the Software without restriction, including *
|
|
* without limitation the rights to use, copy, modify, merge, publish, *
|
|
* distribute, distribute with modifications, sublicense, and/or sell *
|
|
* copies of the Software, and to permit persons to whom the Software is *
|
|
* furnished to do so, subject to the following conditions: *
|
|
* *
|
|
* The above copyright notice and this permission notice shall be included *
|
|
* in all copies or substantial portions of the Software. *
|
|
* *
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
|
|
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
|
|
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
|
|
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
|
|
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
|
* *
|
|
* Except as contained in this notice, the name(s) of the above copyright *
|
|
* holders shall not be used in advertising or otherwise to promote the *
|
|
* sale, use or other dealings in this Software without prior written *
|
|
* authorization. *
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
|
|
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
|
|
* and: Thomas E. Dickey 1996-on *
|
|
****************************************************************************/
|
|
|
|
/*
|
|
* clear.c -- clears the terminal's screen
|
|
*/
|
|
|
|
#define USE_LIBTINFO
|
|
#include <clear_cmd.h>
|
|
#include <tty_settings.h>
|
|
|
|
MODULE_ID("$Id: clear.c,v 1.24 2021/03/20 18:23:14 tom Exp $")
|
|
|
|
const char *_nc_progname = "clear";
|
|
|
|
static GCC_NORETURN void
|
|
usage(void)
|
|
{
|
|
#define KEEP(s) s "\n"
|
|
static const char msg[] =
|
|
{
|
|
KEEP("")
|
|
KEEP("Options:")
|
|
KEEP(" -T TERM use this instead of $TERM")
|
|
KEEP(" -V print curses-version")
|
|
KEEP(" -x do not try to clear scrollback")
|
|
};
|
|
#undef KEEP
|
|
(void) fprintf(stderr, "Usage: %s [options]\n", _nc_progname);
|
|
fputs(msg, stderr);
|
|
ExitProgram(EXIT_FAILURE);
|
|
}
|
|
|
|
int
|
|
main(
|
|
int argc GCC_UNUSED,
|
|
char *argv[]GCC_UNUSED)
|
|
{
|
|
TTY tty_settings;
|
|
int fd;
|
|
int c;
|
|
char *term;
|
|
bool opt_x = FALSE; /* clear scrollback if possible */
|
|
|
|
_nc_progname = _nc_rootname(argv[0]);
|
|
term = getenv("TERM");
|
|
|
|
while ((c = getopt(argc, argv, "T:Vx")) != -1) {
|
|
switch (c) {
|
|
case 'T':
|
|
use_env(FALSE);
|
|
use_tioctl(TRUE);
|
|
term = optarg;
|
|
break;
|
|
case 'V':
|
|
puts(curses_version());
|
|
ExitProgram(EXIT_SUCCESS);
|
|
case 'x': /* do not try to clear scrollback */
|
|
opt_x = TRUE;
|
|
break;
|
|
default:
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
if (optind < argc)
|
|
usage();
|
|
|
|
fd = save_tty_settings(&tty_settings, FALSE);
|
|
|
|
setupterm(term, fd, (int *) 0);
|
|
|
|
ExitProgram((clear_cmd(opt_x) == ERR)
|
|
? EXIT_FAILURE
|
|
: EXIT_SUCCESS);
|
|
}
|