xref: /titanic_50/usr/src/ucblib/libcurses/insch.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
3*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
4*7c478bd9Sstevel@tonic-gate  */
5*7c478bd9Sstevel@tonic-gate 
6*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
7*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
8*7c478bd9Sstevel@tonic-gate 
9*7c478bd9Sstevel@tonic-gate /*
10*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1980 Regents of the University of California.
11*7c478bd9Sstevel@tonic-gate  * All rights reserved.  The Berkeley software License Agreement
12*7c478bd9Sstevel@tonic-gate  * specifies the terms and conditions for redistribution.
13*7c478bd9Sstevel@tonic-gate  */
14*7c478bd9Sstevel@tonic-gate 
15*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
16*7c478bd9Sstevel@tonic-gate 
17*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/
18*7c478bd9Sstevel@tonic-gate 
19*7c478bd9Sstevel@tonic-gate #ifndef lint
20*7c478bd9Sstevel@tonic-gate static char
21*7c478bd9Sstevel@tonic-gate sccsid[] = "@(#)insch.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
22*7c478bd9Sstevel@tonic-gate #endif /* not lint */
23*7c478bd9Sstevel@tonic-gate 
24*7c478bd9Sstevel@tonic-gate #include	"curses.ext"
25*7c478bd9Sstevel@tonic-gate 
26*7c478bd9Sstevel@tonic-gate /*
27*7c478bd9Sstevel@tonic-gate  *	This routine performs an insert-char on the line, leaving
28*7c478bd9Sstevel@tonic-gate  * (_cury,_curx) unchanged.
29*7c478bd9Sstevel@tonic-gate  */
30*7c478bd9Sstevel@tonic-gate 
31*7c478bd9Sstevel@tonic-gate int
winsch(WINDOW * win,char c)32*7c478bd9Sstevel@tonic-gate winsch(WINDOW *win, char c)
33*7c478bd9Sstevel@tonic-gate {
34*7c478bd9Sstevel@tonic-gate 	char	*temp1, *temp2;
35*7c478bd9Sstevel@tonic-gate 	char	*end;
36*7c478bd9Sstevel@tonic-gate 
37*7c478bd9Sstevel@tonic-gate 	end = &win->_y[win->_cury][win->_curx];
38*7c478bd9Sstevel@tonic-gate 	temp1 = &win->_y[win->_cury][win->_maxx - 1];
39*7c478bd9Sstevel@tonic-gate 	temp2 = temp1 - 1;
40*7c478bd9Sstevel@tonic-gate 	while (temp1 > end)
41*7c478bd9Sstevel@tonic-gate 		*temp1-- = *temp2--;
42*7c478bd9Sstevel@tonic-gate 	*temp1 = c;
43*7c478bd9Sstevel@tonic-gate 	(void) touchline(win, win->_cury, win->_curx, win->_maxx - 1);
44*7c478bd9Sstevel@tonic-gate 	if (win->_cury == LINES - 1 && win->_y[LINES-1][COLS-1] != ' ')
45*7c478bd9Sstevel@tonic-gate 		if (win->_scroll) {
46*7c478bd9Sstevel@tonic-gate 			(void) wrefresh(win);
47*7c478bd9Sstevel@tonic-gate 			(void) scroll(win);
48*7c478bd9Sstevel@tonic-gate 			win->_cury--;
49*7c478bd9Sstevel@tonic-gate 		}
50*7c478bd9Sstevel@tonic-gate 		else
51*7c478bd9Sstevel@tonic-gate 			return (ERR);
52*7c478bd9Sstevel@tonic-gate 	return (OK);
53*7c478bd9Sstevel@tonic-gate }
54