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/* $NetBSD: addchnstr.c,v 1.6 2013/11/09 11:16:59 blymn Exp $ */
/*
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Douwe Kiela (virtus@wanadoo.nl).
*
* 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.
*
* 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 FOUNDATION 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: addchnstr.c,v 1.6 2013/11/09 11:16:59 blymn Exp $");
#endif /* not lint */
#include <stdlib.h>
#include "curses.h"
#include "curses_private.h"
#ifndef _CURSES_USE_MACROS
/*
* addchstr --
* Add a string to stdscr starting at (_cury, _curx).
*/
int
addchstr(const chtype *chstr)
{
return waddchnstr(stdscr, chstr, -1);
}
/*
* waddchstr --
* Add a string to the given window starting at (_cury, _curx).
*/
int
waddchstr(WINDOW *win, const chtype *chstr)
{
return waddchnstr(win, chstr, -1);
}
/*
* addchnstr --
* Add a string (at most n characters) to stdscr starting
* at (_cury, _curx). If n is negative, add the entire string.
*/
int
addchnstr(const chtype *chstr, int n)
{
return waddchnstr(stdscr, chstr, n);
}
/*
* mvaddchstr --
* Add a string to stdscr starting at (y, x)
*/
int
mvaddchstr(int y, int x, const chtype *chstr)
{
return mvwaddchnstr(stdscr, y, x, chstr, -1);
}
/*
* mvwaddchstr --
* Add a string to the given window starting at (y, x)
*/
int
mvwaddchstr(WINDOW *win, int y, int x, const chtype *chstr)
{
return mvwaddchnstr(win, y, x, chstr, -1);
}
/*
* mvaddchnstr --
* Add a string of at most n characters to stdscr
* starting at (y, x).
*/
int
mvaddchnstr(int y, int x, const chtype *chstr, int n)
{
return mvwaddchnstr(stdscr, y, x, chstr, n);
}
/*
* mvwaddchnstr --
* Add a string of at most n characters to the given window
* starting at (y, x).
*/
int
mvwaddchnstr(WINDOW *win, int y, int x, const chtype *chstr, int n)
{
if (wmove(win, y, x) == ERR)
return ERR;
return waddchnstr(win, chstr, n);
}
#endif
/*
* waddchnstr --
* Add a string (at most n characters) to the given window
* starting at (_cury, _curx) until the end of line is reached or
* n characters have been added. If n is negative, add as much
* of the string that will fit on the current line. SUSv2 says
* that the addchnstr family does not wrap and strings are truncated
* to the RHS of the window.
*/
int
waddchnstr(WINDOW *win, const chtype *chstr, int n)
{
size_t len;
const chtype *chp;
attr_t attr;
char *ocp, *cp, *start;
int i, ret, ox, oy;
#ifdef DEBUG
__CTRACE(__CTRACE_INPUT, "waddchnstr: win = %p, chstr = %p, n = %d\n",
win, chstr, n);
#endif
if (n >= 0)
for (chp = chstr, len = 0; n-- && *chp++; ++len);
else
for (chp = chstr, len = 0; *chp++; ++len);
/* check if string is too long for current location */
if (len > (win->maxx - win->curx))
len = win->maxx - win->curx;
if ((ocp = malloc(len + 1)) == NULL)
return ERR;
chp = chstr;
cp = ocp;
start = ocp;
i = 0;
attr = (*chp) & __ATTRIBUTES;
ox = win->curx;
oy = win->cury;
while (len) {
*cp = (*chp) & __CHARTEXT;
cp++;
chp++;
i++;
len--;
if (((*chp) & __ATTRIBUTES) != attr) {
*cp = '\0';
if (_cursesi_waddbytes(win, start, i, attr, 0) == ERR) {
free(ocp);
return ERR;
}
attr = (*chp) & __ATTRIBUTES;
start = cp;
i = 0;
}
}
*cp = '\0';
ret = _cursesi_waddbytes(win, start, i, attr, 0);
free(ocp);
wmove(win, oy, ox);
return ret;
}
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