198 lines
4.9 KiB
C
198 lines
4.9 KiB
C
/* $NetBSD: in_wchstr.c,v 1.3 2009/07/22 16:57:14 roy Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2005 The NetBSD Foundation Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from code donated to the NetBSD Foundation
|
|
* by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>.
|
|
*
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
|
|
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
__RCSID("$NetBSD: in_wchstr.c,v 1.3 2009/07/22 16:57:14 roy Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include "curses.h"
|
|
#include "curses_private.h"
|
|
|
|
/*
|
|
* in_wchstr, in_wchnstr --
|
|
* Return an array of wide characters at cursor position from stdscr.
|
|
*/
|
|
__warn_references(in_wchstr,
|
|
"warning: this program uses in_wchstr(), which is unsafe.")
|
|
int
|
|
in_wchstr(cchar_t *wchstr)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
return win_wchstr(stdscr, wchstr);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
int
|
|
in_wchnstr(cchar_t *wchstr, int n)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
return win_wchnstr(stdscr, wchstr, n);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
/*
|
|
* mvin_wchstr, mv_winchnstr --
|
|
* Return an array of wide characters at position (y, x) from stdscr.
|
|
*/
|
|
__warn_references(mvin_wchstr,
|
|
"warning: this program uses mvin_wchstr(), which is unsafe.")
|
|
int
|
|
mvin_wchstr(int y, int x, cchar_t *wchstr)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
return mvwin_wchstr(stdscr, y, x, wchstr);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
int
|
|
mvin_wchnstr(int y, int x, cchar_t *wchstr, int n)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
return mvwin_wchnstr(stdscr, y, x, wchstr, n);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
/*
|
|
* mvwin_wchstr, mvwin_wchnstr --
|
|
* Return an array wide characters at position (y, x) from the given window.
|
|
*/
|
|
__warn_references(mvwin_wchstr,
|
|
"warning: this program uses mvwin_wchstr(), which is unsafe.")
|
|
int
|
|
mvwin_wchstr(WINDOW *win, int y, int x, cchar_t *wchstr)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return win_wchstr(win, wchstr);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
int
|
|
mvwin_wchnstr(WINDOW *win, int y, int x, cchar_t *wchstr, int n)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return win_wchnstr(win, wchstr, n);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
/*
|
|
* win_wchstr, win_wchnstr --
|
|
* Return an array of characters at cursor position.
|
|
*/
|
|
__warn_references(win_wchstr,
|
|
"warning: this program uses win_wchstr(), which is unsafe.")
|
|
int
|
|
win_wchstr(WINDOW *win, cchar_t *wchstr)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
|
|
return win_wchnstr(win, wchstr, -1);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
/*
|
|
* - SUSv2/xcurses doesn't document whether the trailing 0 is included
|
|
* in the length count or not. For safety's sake it _is_ included.
|
|
*/
|
|
int
|
|
win_wchnstr(WINDOW *win, cchar_t *wchstr, int n)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
__LDATA *start;
|
|
int x = 0, cw = 0, cnt = 0;
|
|
cchar_t *wcp;
|
|
nschar_t *np;
|
|
|
|
if (wchstr == NULL)
|
|
return ERR;
|
|
|
|
start = &win->alines[win->cury]->line[win->curx];
|
|
x = win->curx;
|
|
cw = WCOL(*start);
|
|
if (cw < 0) {
|
|
start += cw;
|
|
x += cw;
|
|
}
|
|
wcp = wchstr;
|
|
/* (n - 1) to leave room for the trailing 0 element */
|
|
while ((x < win->maxx) && ((n < 0) || ((n > 1) && (cnt < n - 1)))) {
|
|
cw = WCOL( *start );
|
|
wcp->vals[ 0 ] = start->ch;
|
|
wcp->attributes = start->attr;
|
|
wcp->elements = 1;
|
|
np = start->nsp;
|
|
if (np) {
|
|
do {
|
|
wcp->vals[ wcp->elements++ ] = np->ch;
|
|
np = np->next;
|
|
} while ( np );
|
|
}
|
|
wcp++;
|
|
cnt++;
|
|
x += cw;
|
|
if ( x < win->maxx )
|
|
start += cw;
|
|
}
|
|
wcp->vals[ 0 ] = L'\0';
|
|
wcp->elements = 1;
|
|
wcp->attributes = win->wattr;
|
|
|
|
return OK;
|
|
#endif /* HAVE_WCHAR */
|
|
}
|