1*c7ef0cfcSnicm /****************************************************************************
2*c7ef0cfcSnicm * Copyright 2018,2020 Thomas E. Dickey *
3*c7ef0cfcSnicm * Copyright 2016,2017 Free Software Foundation, Inc. *
4*c7ef0cfcSnicm * *
5*c7ef0cfcSnicm * Permission is hereby granted, free of charge, to any person obtaining a *
6*c7ef0cfcSnicm * copy of this software and associated documentation files (the *
7*c7ef0cfcSnicm * "Software"), to deal in the Software without restriction, including *
8*c7ef0cfcSnicm * without limitation the rights to use, copy, modify, merge, publish, *
9*c7ef0cfcSnicm * distribute, distribute with modifications, sublicense, and/or sell *
10*c7ef0cfcSnicm * copies of the Software, and to permit persons to whom the Software is *
11*c7ef0cfcSnicm * furnished to do so, subject to the following conditions: *
12*c7ef0cfcSnicm * *
13*c7ef0cfcSnicm * The above copyright notice and this permission notice shall be included *
14*c7ef0cfcSnicm * in all copies or substantial portions of the Software. *
15*c7ef0cfcSnicm * *
16*c7ef0cfcSnicm * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17*c7ef0cfcSnicm * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18*c7ef0cfcSnicm * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19*c7ef0cfcSnicm * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20*c7ef0cfcSnicm * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21*c7ef0cfcSnicm * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22*c7ef0cfcSnicm * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23*c7ef0cfcSnicm * *
24*c7ef0cfcSnicm * Except as contained in this notice, the name(s) of the above copyright *
25*c7ef0cfcSnicm * holders shall not be used in advertising or otherwise to promote the *
26*c7ef0cfcSnicm * sale, use or other dealings in this Software without prior written *
27*c7ef0cfcSnicm * authorization. *
28*c7ef0cfcSnicm ****************************************************************************/
29*c7ef0cfcSnicm
30*c7ef0cfcSnicm /****************************************************************************
31*c7ef0cfcSnicm * Author: Thomas E. Dickey *
32*c7ef0cfcSnicm ****************************************************************************/
33*c7ef0cfcSnicm
34*c7ef0cfcSnicm /*
35*c7ef0cfcSnicm * clear.c -- clears the terminal's screen
36*c7ef0cfcSnicm */
37*c7ef0cfcSnicm
38*c7ef0cfcSnicm #define USE_LIBTINFO
39*c7ef0cfcSnicm #include <clear_cmd.h>
40*c7ef0cfcSnicm
41*c7ef0cfcSnicm MODULE_ID("$Id: clear_cmd.c,v 1.1 2023/10/17 09:52:10 nicm Exp $")
42*c7ef0cfcSnicm
43*c7ef0cfcSnicm static int
putch(int c)44*c7ef0cfcSnicm putch(int c)
45*c7ef0cfcSnicm {
46*c7ef0cfcSnicm return putchar(c);
47*c7ef0cfcSnicm }
48*c7ef0cfcSnicm
49*c7ef0cfcSnicm int
clear_cmd(bool legacy)50*c7ef0cfcSnicm clear_cmd(bool legacy)
51*c7ef0cfcSnicm {
52*c7ef0cfcSnicm int retval = tputs(clear_screen, lines > 0 ? lines : 1, putch);
53*c7ef0cfcSnicm if (!legacy) {
54*c7ef0cfcSnicm /* Clear the scrollback buffer if possible. */
55*c7ef0cfcSnicm char *E3 = tigetstr("E3");
56*c7ef0cfcSnicm if (E3)
57*c7ef0cfcSnicm (void) tputs(E3, lines > 0 ? lines : 1, putch);
58*c7ef0cfcSnicm }
59*c7ef0cfcSnicm return retval;
60*c7ef0cfcSnicm }
61