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Annotation of 43BSDTahoe/usr.lib/libcurses/clrtobot.c, revision 1.1

1.1     ! root        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 are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: static char sccsid[] = "@(#)clrtobot.c 5.4 (Berkeley) 6/30/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: # include      "curses.ext"
        !            23: 
        !            24: /*
        !            25:  *     This routine erases everything on the window.
        !            26:  *
        !            27:  */
        !            28: wclrtobot(win)
        !            29: reg WINDOW     *win; {
        !            30: 
        !            31:        reg int         y;
        !            32:        reg char        *sp, *end, *maxx;
        !            33:        reg int         startx, minx;
        !            34: 
        !            35:        startx = win->_curx;
        !            36:        for (y = win->_cury; y < win->_maxy; y++) {
        !            37:                minx = _NOCHANGE;
        !            38:                end = &win->_y[y][win->_maxx];
        !            39:                for (sp = &win->_y[y][startx]; sp < end; sp++)
        !            40:                        if (*sp != ' ') {
        !            41:                                maxx = sp;
        !            42:                                if (minx == _NOCHANGE)
        !            43:                                        minx = sp - win->_y[y];
        !            44:                                *sp = ' ';
        !            45:                        }
        !            46:                if (minx != _NOCHANGE)
        !            47:                        touchline(win, y, minx, maxx - &win->_y[y][0]);
        !            48:                startx = 0;
        !            49:        }
        !            50: }

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