xref: /original-bsd/lib/libcurses/clrtoeol.c (revision 7a8f01dc)
1 /*
2  * Copyright (c) 1981 Regents of the University of California.
3  * All rights reserved.
4  *
5  * %sccs.include.redist.c%
6  */
7 
8 #ifndef lint
9 static char sccsid[] = "@(#)clrtoeol.c	5.4 (Berkeley) 06/01/90";
10 #endif /* not lint */
11 
12 # include	"curses.ext"
13 
14 /*
15  *	This routine clears up to the end of line
16  *
17  */
18 wclrtoeol(win)
19 reg WINDOW	*win; {
20 
21 	reg char	*sp, *end;
22 	reg int		y, x;
23 	reg char	*maxx;
24 	reg int		minx;
25 
26 	y = win->_cury;
27 	x = win->_curx;
28 	end = &win->_y[y][win->_maxx];
29 	minx = _NOCHANGE;
30 	maxx = &win->_y[y][x];
31 	for (sp = maxx; sp < end; sp++)
32 		if (*sp != ' ') {
33 			maxx = sp;
34 			if (minx == _NOCHANGE)
35 				minx = sp - win->_y[y];
36 			*sp = ' ';
37 		}
38 	/*
39 	 * update firstch and lastch for the line
40 	 */
41 	touchline(win, y, win->_curx, win->_maxx - 1);
42 # ifdef DEBUG
43 	fprintf(outf, "CLRTOEOL: minx = %d, maxx = %d, firstch = %d, lastch = %d\n", minx, maxx - win->_y[y], win->_firstch[y], win->_lastch[y]);
44 # endif
45 }
46