1 /*
2 * Copyright (c) 1981, 1993
3 * The Regents of the University of California. 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
35 static char sccsid[] = "@(#)clrtoeol.c 8.1 (Berkeley) 6/4/93";
36 #endif /* not lint */
37
38 #include <curses.h>
39
40 /*
41 * wclrtoeol --
42 * Clear up to the end of line.
43 */
44 int
wclrtoeol(win)45 wclrtoeol(win)
46 register WINDOW *win;
47 {
48 register int minx, x, y;
49 register __LDATA *end, *maxx, *sp;
50
51 y = win->cury;
52 x = win->curx;
53 if (win->lines[y]->flags & __ISPASTEOL) {
54 if (y < win->maxy - 1) {
55 y++;
56 x = 0;
57 } else
58 return (OK);
59 }
60 end = &win->lines[y]->line[win->maxx];
61 minx = -1;
62 maxx = &win->lines[y]->line[x];
63 for (sp = maxx; sp < end; sp++)
64 if (sp->ch != ' ' || sp->attr != 0) {
65 maxx = sp;
66 if (minx == -1)
67 minx = sp - win->lines[y]->line;
68 sp->ch = ' ';
69 sp->attr = 0;
70 }
71 #ifdef DEBUG
72 __CTRACE("CLRTOEOL: minx = %d, maxx = %d, firstch = %d, lastch = %d\n",
73 minx, maxx - win->lines[y]->line, *win->lines[y]->firstchp,
74 *win->lines[y]->lastchp);
75 #endif
76 /* Update firstch and lastch for the line. */
77 return (__touchline(win, y, x, win->maxx - 1, 0));
78 }
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