xref: /onnv-gate/usr/src/lib/libcurses/screen/mbinch.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*  Copyright (c) 1988 AT&T */
23*0Sstevel@tonic-gate /*    All Rights Reserved   */
24*0Sstevel@tonic-gate 
25*0Sstevel@tonic-gate 
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate  *      Copyright (c) 1997, by Sun Microsystems, Inc.
28*0Sstevel@tonic-gate  *      All rights reserved.
29*0Sstevel@tonic-gate  */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate /*LINTLIBRARY*/
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #include	<sys/types.h>
36*0Sstevel@tonic-gate #include	"curses_inc.h"
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate /*
39*0Sstevel@tonic-gate  *	Get the(y, x) character of a window and
40*0Sstevel@tonic-gate  *	return it in a 0-terminated string.
41*0Sstevel@tonic-gate  */
42*0Sstevel@tonic-gate char
wmbinch(WINDOW * win,int y,int x)43*0Sstevel@tonic-gate *wmbinch(WINDOW *win, int y, int x)
44*0Sstevel@tonic-gate {
45*0Sstevel@tonic-gate 	short		savx, savy;
46*0Sstevel@tonic-gate 	int		k;
47*0Sstevel@tonic-gate 	chtype		*wp, *ep, wc;
48*0Sstevel@tonic-gate 	static char	rs[CSMAX + 1];
49*0Sstevel@tonic-gate 
50*0Sstevel@tonic-gate 	k = 0;
51*0Sstevel@tonic-gate 	savx = win->_curx;
52*0Sstevel@tonic-gate 	savy = win->_cury;
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 	if (wmbmove(win, y, x) == ERR)
55*0Sstevel@tonic-gate 		goto done;
56*0Sstevel@tonic-gate 	wp = win->_y[win->_cury] + win->_curx;
57*0Sstevel@tonic-gate 	wc = RBYTE(*wp);
58*0Sstevel@tonic-gate 	ep = wp + _curs_scrwidth[TYPE(wc & 0377)];
59*0Sstevel@tonic-gate 
60*0Sstevel@tonic-gate 	for (; wp < ep; ++wp) {
61*0Sstevel@tonic-gate 		if ((wc = RBYTE(*wp)) == MBIT)
62*0Sstevel@tonic-gate 			break;
63*0Sstevel@tonic-gate 		/*LINTED*/
64*0Sstevel@tonic-gate 		rs[k++] = (char)wc;
65*0Sstevel@tonic-gate 		if ((wc = LBYTE(*wp)|MBIT) == MBIT)
66*0Sstevel@tonic-gate 			break;
67*0Sstevel@tonic-gate 		/*LINTED*/
68*0Sstevel@tonic-gate 		rs[k++] = (char)wc;
69*0Sstevel@tonic-gate 	}
70*0Sstevel@tonic-gate done :
71*0Sstevel@tonic-gate 	win->_curx = savx;
72*0Sstevel@tonic-gate 	win->_cury = savy;
73*0Sstevel@tonic-gate 	rs[k] = '\0';
74*0Sstevel@tonic-gate 	return (rs);
75*0Sstevel@tonic-gate }
76