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Annotation of 43BSDTahoe/usr.lib/libcurses/insch.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[] = "@(#)insch.c    5.3 (Berkeley) 6/30/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: # include      "curses.ext"
        !            23: 
        !            24: /*
        !            25:  *     This routine performs an insert-char on the line, leaving
        !            26:  * (_cury,_curx) unchanged.
        !            27:  *
        !            28:  */
        !            29: winsch(win, c)
        !            30: reg WINDOW     *win;
        !            31: char           c; {
        !            32: 
        !            33:        reg char        *temp1, *temp2;
        !            34:        reg char        *end;
        !            35: 
        !            36:        end = &win->_y[win->_cury][win->_curx];
        !            37:        temp1 = &win->_y[win->_cury][win->_maxx - 1];
        !            38:        temp2 = temp1 - 1;
        !            39:        while (temp1 > end)
        !            40:                *temp1-- = *temp2--;
        !            41:        *temp1 = c;
        !            42:        touchline(win, win->_cury, win->_curx, win->_maxx - 1);
        !            43:        if (win->_cury == LINES - 1 && win->_y[LINES-1][COLS-1] != ' ')
        !            44:                if (win->_scroll) {
        !            45:                        wrefresh(win);
        !            46:                        scroll(win);
        !            47:                        win->_cury--;
        !            48:                }
        !            49:                else
        !            50:                        return ERR;
        !            51:        return OK;
        !            52: }

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