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Annotation of 43BSDReno/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: (1) source distributions retain this entire copyright
        !             7:  * notice and comment, and (2) distributions including binaries display
        !             8:  * the following acknowledgement:  ``This product includes software
        !             9:  * developed by the University of California, Berkeley and its contributors''
        !            10:  * in the documentation or other materials provided with the distribution
        !            11:  * and in all advertising materials mentioning features or use of this
        !            12:  * software. Neither the name of the University nor the names of its
        !            13:  * contributors may be used to endorse or promote products derived
        !            14:  * from this software without specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: static char sccsid[] = "@(#)clrtobot.c 5.5 (Berkeley) 6/1/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: # include      "curses.ext"
        !            25: 
        !            26: /*
        !            27:  *     This routine erases everything on the window.
        !            28:  *
        !            29:  */
        !            30: wclrtobot(win)
        !            31: reg WINDOW     *win; {
        !            32: 
        !            33:        reg int         y;
        !            34:        reg char        *sp, *end, *maxx;
        !            35:        reg int         startx, minx;
        !            36: 
        !            37:        startx = win->_curx;
        !            38:        for (y = win->_cury; y < win->_maxy; y++) {
        !            39:                minx = _NOCHANGE;
        !            40:                end = &win->_y[y][win->_maxx];
        !            41:                for (sp = &win->_y[y][startx]; sp < end; sp++)
        !            42:                        if (*sp != ' ') {
        !            43:                                maxx = sp;
        !            44:                                if (minx == _NOCHANGE)
        !            45:                                        minx = sp - win->_y[y];
        !            46:                                *sp = ' ';
        !            47:                        }
        !            48:                if (minx != _NOCHANGE)
        !            49:                        touchline(win, y, minx, maxx - &win->_y[y][0]);
        !            50:                startx = 0;
        !            51:        }
        !            52: }

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