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      1 /*
      2  * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
      3  * Use is subject to license terms.
      4  */
      5 
      6 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
      7 /*	  All Rights Reserved  	*/
      8 
      9 /*
     10  * Copyright (c) 1980 Regents of the University of California.
     11  * All rights reserved.  The Berkeley software License Agreement
     12  * specifies the terms and conditions for redistribution.
     13  */
     14 
     15 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     16 
     17 /*LINTLIBRARY*/
     18 
     19 #ifndef lint
     20 static char
     21 sccsid[] = "@(#)clrtoeol.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
     22 #endif /* not lint */
     23 
     24 #include	<stddef.h>
     25 #include	"curses.ext"
     26 
     27 /*
     28  *	This routine clears up to the end of line
     29  */
     30 
     31 int
     32 wclrtoeol(WINDOW *win)
     33 {
     34 	char	*sp, *end;
     35 	int	y, x;
     36 	char	*maxx;
     37 	ptrdiff_t	minx;
     38 
     39 	y = win->_cury;
     40 	x = win->_curx;
     41 	end = &win->_y[y][win->_maxx];
     42 	minx = _NOCHANGE;
     43 	maxx = &win->_y[y][x];
     44 	for (sp = maxx; sp < end; sp++)
     45 		if (*sp != ' ') {
     46 			maxx = sp;
     47 			if (minx == _NOCHANGE)
     48 				minx = sp - win->_y[y];
     49 			*sp = ' ';
     50 		}
     51 	/*
     52 	 * update firstch and lastch for the line
     53 	 */
     54 	(void) touchline(win, y, win->_curx, win->_maxx - 1);
     55 
     56 #ifdef DEBUG
     57 	fprintf(outf, "CLRTOEOL: minx = %d, maxx = %d, firstch = %d,"
     58 	    " lastch = %d\n", minx, maxx - win->_y[y], win->_firstch[y],
     59 	    win->_lastch[y]);
     60 #endif
     61 	return (OK);
     62 }
     63