70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*
|
|
* 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
|
|
static char sccsid[] = "@(#)erase.c 5.4 (Berkeley) 6/1/90";
|
|
#endif /* not lint */
|
|
|
|
# include "curses.ext"
|
|
|
|
/*
|
|
* This routine erases everything on the window.
|
|
*
|
|
*/
|
|
werase(win)
|
|
reg WINDOW *win; {
|
|
|
|
reg int y;
|
|
reg char *sp, *end, *start, *maxx;
|
|
reg int minx;
|
|
|
|
# ifdef DEBUG
|
|
fprintf(outf, "WERASE(%0.2o)\n", win);
|
|
# endif
|
|
for (y = 0; y < win->_maxy; y++) {
|
|
minx = _NOCHANGE;
|
|
start = win->_y[y];
|
|
end = &start[win->_maxx];
|
|
for (sp = start; sp < end; sp++)
|
|
if (*sp != ' ') {
|
|
maxx = sp;
|
|
if (minx == _NOCHANGE)
|
|
minx = sp - start;
|
|
*sp = ' ';
|
|
}
|
|
if (minx != _NOCHANGE)
|
|
touchline(win, y, minx, maxx - win->_y[y]);
|
|
}
|
|
win->_curx = win->_cury = 0;
|
|
}
|