NetBSD/lib/libcurses/clrtoeol.c

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/*
* Copyright (c) 1981 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
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/*static char sccsid[] = "from: @(#)clrtoeol.c 5.5 (Berkeley) 8/23/92";*/
static char rcsid[] = "$Id: clrtoeol.c,v 1.4 1993/08/07 05:48:43 mycroft Exp $";
#endif /* not lint */
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#include <curses.h>
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/*
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* wclrtoeol --
* Clear up to the end of line.
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*/
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int
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wclrtoeol(win)
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register WINDOW *win;
{
register int minx, x, y;
register char *end, *maxx, *sp;
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y = win->_cury;
x = win->_curx;
end = &win->_y[y][win->_maxx];
minx = _NOCHANGE;
maxx = &win->_y[y][x];
for (sp = maxx; sp < end; sp++)
if (*sp != ' ') {
maxx = sp;
if (minx == _NOCHANGE)
minx = sp - win->_y[y];
*sp = ' ';
}
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#ifdef DEBUG
__TRACE("CLRTOEOL: minx = %d, maxx = %d, firstch = %d, lastch = %d\n",
minx, maxx - win->_y[y], win->_firstch[y], win->_lastch[y]);
#endif
/* Update firstch and lastch for the line. */
return (touchline(win, y, win->_curx, win->_maxx - 1));
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}