1 /* $NetBSD: addwstr.c,v 1.9 2024/12/23 02:58:03 blymn 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 1.9 2024/12/23 02:58:03 blymn 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 */
51 int
addwstr(const wchar_t * s)52 addwstr(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 */
61 int
waddwstr(WINDOW * win,const wchar_t * s)62 waddwstr(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 */
72 int
addnwstr(const wchar_t * str,int n)73 addnwstr(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 */
82 int
mvaddwstr(int y,int x,const wchar_t * str)83 mvaddwstr(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 */
92 int
mvwaddwstr(WINDOW * win,int y,int x,const wchar_t * str)93 mvwaddwstr(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 */
103 int
mvaddnwstr(int y,int x,const wchar_t * str,int count)104 mvaddnwstr(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 */
114 int
mvwaddnwstr(WINDOW * win,int y,int x,const wchar_t * str,int count)115 mvwaddnwstr(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 */
129 int
waddnwstr(WINDOW * win,const wchar_t * s,int n)130 waddnwstr(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 if (__predict_false(win == NULL))
138 return ERR;
139
140 /*
141 * BSD curses: if (n > 0) then "at most n", else "len = strlen(s)"
142 * ncurses: if (n >= 0) then "at most n", else "len = strlen(s)"
143 * XCURSES: if (n != -1) then "at most n", else "len = strlen(s)"
144 */
145 /* compute the length and column width of string */
146 if (n < -1)
147 return ERR;
148 if (n >= 0)
149 for (p = s, len = 0; n-- && *p++; ++len);
150 else
151 len = wcslen(s);
152 __CTRACE(__CTRACE_INPUT, "waddnwstr: string len=%zu\n", len);
153
154 p = s;
155 while (len) {
156 wc[0] = *p;
157 wc[1] = L'\0';
158 if (setcchar( &cc, wc, win->wattr, 0, NULL ) == ERR)
159 return ERR;
160 if (wadd_wch( win, &cc ) == ERR)
161 return ERR;
162 __CTRACE(__CTRACE_INPUT, "waddnwstr: (%x,%x,%d) added\n",
163 cc.vals[0], cc.attributes, cc.elements);
164 p++, len--;
165 }
166
167 return OK;
168 }
169