/*
 * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
/*        All Rights Reserved   */

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

/*LINTLIBRARY*/

#ifndef lint
static char
sccsid[] = "@(#)insch.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
#endif /* not lint */

#include        "curses.ext"

/*
 *      This routine performs an insert-char on the line, leaving
 * (_cury,_curx) unchanged.
 */

int
winsch(WINDOW *win, char c)
{
        char    *temp1, *temp2;
        char    *end;

        end = &win->_y[win->_cury][win->_curx];
        temp1 = &win->_y[win->_cury][win->_maxx - 1];
        temp2 = temp1 - 1;
        while (temp1 > end)
                *temp1-- = *temp2--;
        *temp1 = c;
        (void) touchline(win, win->_cury, win->_curx, win->_maxx - 1);
        if (win->_cury == LINES - 1 && win->_y[LINES-1][COLS-1] != ' ')
                if (win->_scroll) {
                        (void) wrefresh(win);
                        (void) scroll(win);
                        win->_cury--;
                }
                else
                        return (ERR);
        return (OK);
}