xref: /onnv-gate/usr/src/lib/libcurses/screen/winnwstr.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  * Copy n chars(wchar_t) in window win from current cursor position to end
40*0Sstevel@tonic-gate  * of window into char buffer str.  Return the number of chars copied.
41*0Sstevel@tonic-gate  */
42*0Sstevel@tonic-gate 
43*0Sstevel@tonic-gate int
winnwstr(WINDOW * win,wchar_t * wstr,int ncols)44*0Sstevel@tonic-gate winnwstr(WINDOW *win, wchar_t *wstr, int ncols)
45*0Sstevel@tonic-gate {
46*0Sstevel@tonic-gate 	int	counter = 0;
47*0Sstevel@tonic-gate 	int	cy = win->_cury;
48*0Sstevel@tonic-gate 	chtype	*ptr = &(win->_y[cy][win->_curx]),
49*0Sstevel@tonic-gate 		*pmax = &(win->_y[cy][win->_maxx]);
50*0Sstevel@tonic-gate 	wchar_t	wc, *cp;
51*0Sstevel@tonic-gate 	int	scrw, s;
52*0Sstevel@tonic-gate 	char	cbuf[CSMAX+1];
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 
55*0Sstevel@tonic-gate 	while (ISCBIT(*ptr))
56*0Sstevel@tonic-gate 		ptr--;
57*0Sstevel@tonic-gate 
58*0Sstevel@tonic-gate 	if (ncols < -1)
59*0Sstevel@tonic-gate 		ncols = MAXINT;
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate 	while (counter < ncols) {
62*0Sstevel@tonic-gate 		wc = RBYTE(*ptr);
63*0Sstevel@tonic-gate 		scrw = mbscrw((int) wc);
64*0Sstevel@tonic-gate 		(void) mbeucw((int) wc);
65*0Sstevel@tonic-gate 		/* LINTED */
66*0Sstevel@tonic-gate 		cp = (wchar_t *)cbuf;
67*0Sstevel@tonic-gate 		for (s = 0; s < scrw; s++, ptr++) {
68*0Sstevel@tonic-gate 			if ((wc = RBYTE(*ptr)) == MBIT)
69*0Sstevel@tonic-gate 				continue;
70*0Sstevel@tonic-gate 			*cp++ = wc;
71*0Sstevel@tonic-gate 			if ((wc = LBYTE(*ptr) | MBIT) == MBIT)
72*0Sstevel@tonic-gate 				continue;
73*0Sstevel@tonic-gate 			*cp++ = wc;
74*0Sstevel@tonic-gate 		}
75*0Sstevel@tonic-gate 		*cp = (char)0;
76*0Sstevel@tonic-gate 
77*0Sstevel@tonic-gate 		if (_curs_mbtowc(&wc, cbuf, CSMAX) <= 0)
78*0Sstevel@tonic-gate 			break;
79*0Sstevel@tonic-gate 
80*0Sstevel@tonic-gate 		*wstr++ = wc;
81*0Sstevel@tonic-gate 		counter++;
82*0Sstevel@tonic-gate 
83*0Sstevel@tonic-gate 		if (ptr >= pmax) {
84*0Sstevel@tonic-gate 			if (++cy == win->_maxy)
85*0Sstevel@tonic-gate 				break;
86*0Sstevel@tonic-gate 
87*0Sstevel@tonic-gate 			ptr = &(win->_y[cy][0]);
88*0Sstevel@tonic-gate 			pmax = ptr + win->_maxx;
89*0Sstevel@tonic-gate 		}
90*0Sstevel@tonic-gate 	}
91*0Sstevel@tonic-gate 	if (counter < ncols)
92*0Sstevel@tonic-gate 		*wstr = (wchar_t)0;
93*0Sstevel@tonic-gate 
94*0Sstevel@tonic-gate 	return (counter);
95*0Sstevel@tonic-gate }
96