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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
- static char sccsid[] = "@(#)erase.c 5.5 (Berkeley) 8/23/92";
- #endif /* not lint */
-
- #include <curses.h>
-
- /*
- * werase --
- * Erases everything on the window.
- */
- int
- werase(win)
- register WINDOW *win;
- {
-
- register int minx, y;
- register char *sp, *end, *start, *maxx;
-
- #ifdef DEBUG
- __TRACE("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;
- return (OK);
- }
-