386BSD 0.1 development
[unix-history] / usr / src / lib / libcurses / clrtoeol.c
CommitLineData
7c671adf
WJ
1/*
2 * Copyright (c) 1981 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static char sccsid[] = "@(#)clrtoeol.c 5.4 (Berkeley) 6/1/90";
36#endif /* not lint */
37
38# include "curses.ext"
39
40/*
41 * This routine clears up to the end of line
42 *
43 */
44wclrtoeol(win)
45reg WINDOW *win; {
46
47 reg char *sp, *end;
48 reg int y, x;
49 reg char *maxx;
50 reg int minx;
51
52 y = win->_cury;
53 x = win->_curx;
54 end = &win->_y[y][win->_maxx];
55 minx = _NOCHANGE;
56 maxx = &win->_y[y][x];
57 for (sp = maxx; sp < end; sp++)
58 if (*sp != ' ') {
59 maxx = sp;
60 if (minx == _NOCHANGE)
61 minx = sp - win->_y[y];
62 *sp = ' ';
63 }
64 /*
65 * update firstch and lastch for the line
66 */
67 touchline(win, y, win->_curx, win->_maxx - 1);
68# ifdef DEBUG
69 fprintf(outf, "CLRTOEOL: minx = %d, maxx = %d, firstch = %d, lastch = %d\n", minx, maxx - win->_y[y], win->_firstch[y], win->_lastch[y]);
70# endif
71}