1/*   $NetBSD: addwstr.c,v 1.8 2021/09/06 07:45:48 rin Exp $ */
2
3/*
4 * Copyright (c) 2005 The NetBSD Foundation Inc.
5 * All rights reserved.
6 *
7 * This code is derived from code donated to the NetBSD Foundation
8 * by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>.
9 *
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *	notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *	notice, this list of conditions and the following disclaimer in the
18 *	documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the NetBSD Foundation nor the names of its
20 *	contributors may be used to endorse or promote products derived
21 *	from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
24 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
25 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#include <sys/cdefs.h>
38#ifndef lint
39__RCSID("$NetBSD: addwstr.c,v 1.8 2021/09/06 07:45:48 rin Exp $");
40#endif						  /* not lint */
41
42#include <string.h>
43
44#include "curses.h"
45#include "curses_private.h"
46
47/*
48 * addwstr --
49 *	  Add a string to stdscr starting at (_cury, _curx).
50 */
51int
52addwstr(const wchar_t *s)
53{
54	return waddnwstr(stdscr, s, -1);
55}
56
57/*
58 * waddwstr --
59 *	  Add a string to the given window starting at (_cury, _curx).
60 */
61int
62waddwstr(WINDOW *win, const wchar_t *s)
63{
64	return waddnwstr(win, s, -1);
65}
66
67/*
68 * addnwstr --
69 *	  Add a string (at most n characters) to stdscr starting
70 *	at (_cury, _curx).  If n is negative, add the entire string.
71 */
72int
73addnwstr(const wchar_t *str, int n)
74{
75	return waddnwstr(stdscr, str, n);
76}
77
78/*
79 * mvaddwstr --
80 *	  Add a string to stdscr starting at (y, x)
81 */
82int
83mvaddwstr(int y, int x, const wchar_t *str)
84{
85	return mvwaddnwstr(stdscr, y, x, str, -1);
86}
87
88/*
89 * mvwaddwstr --
90 *	  Add a string to the given window starting at (y, x)
91 */
92int
93mvwaddwstr(WINDOW *win, int y, int x, const wchar_t *str)
94{
95	return mvwaddnwstr(win, y, x, str, -1);
96}
97
98/*
99 * mvaddnwstr --
100 *	  Add a string of at most n characters to stdscr
101 *	  starting at (y, x).
102 */
103int
104mvaddnwstr(int y, int x, const wchar_t *str, int count)
105{
106	return mvwaddnwstr(stdscr, y, x, str, count);
107}
108
109/*
110 * mvwaddnwstr --
111 *	  Add a string of at most n characters to the given window
112 *	  starting at (y, x).
113 */
114int
115mvwaddnwstr(WINDOW *win, int y, int x, const wchar_t *str, int count)
116{
117	if (wmove(win, y, x) == ERR)
118		return ERR;
119
120	return waddnwstr(win, str, count);
121}
122
123/*
124 * waddnwstr --
125 *	Add a string (at most n characters) to the given window
126 *	starting at (_cury, _curx).  If n is negative, add the
127 *	entire string.
128 */
129int
130waddnwstr(WINDOW *win, const wchar_t *s, int n)
131{
132	size_t  len;
133	const wchar_t *p;
134	cchar_t cc;
135	wchar_t wc[2];
136
137	/*
138	 * BSD curses: if (n > 0) then "at most n", else "len = strlen(s)"
139	 * ncurses: if (n >= 0) then "at most n", else "len = strlen(s)"
140	 * XCURSES: if (n != -1) then "at most n", else "len = strlen(s)"
141	 */
142	/* compute the length and column width of string */
143	if (n < -1)
144		return ERR;
145	if (n >= 0)
146		for (p = s, len = 0; n-- && *p++; ++len);
147	else
148		len = wcslen(s);
149	__CTRACE(__CTRACE_INPUT, "waddnwstr: string len=%zu\n", len);
150
151	p = s;
152	while (len) {
153		wc[0] = *p;
154		wc[1] = L'\0';
155		if (setcchar( &cc, wc, win->wattr, 0, NULL ) == ERR)
156			return ERR;
157		if (wadd_wch( win, &cc ) == ERR)
158			return ERR;
159		__CTRACE(__CTRACE_INPUT, "waddnwstr: (%x,%x,%d) added\n",
160		    cc.vals[0], cc.attributes, cc.elements);
161		p++, len--;
162	}
163
164	return OK;
165}
166