xref: /netbsd-src/lib/libcurses/scanw.c (revision d9158b13b5dfe46201430699a3f7a235ecf28df3)
1 /*
2  * Copyright (c) 1981, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef lint
35 /* from: static char sccsid[] = "@(#)scanw.c	8.2 (Berkeley) 10/5/93"; */
36 static char *rcsid = "$Id: scanw.c,v 1.6 1994/01/24 08:36:55 cgd Exp $";
37 #endif	/* not lint */
38 
39 /*
40  * scanw and friends.
41  */
42 
43 #include <curses.h>
44 
45 #ifdef __STDC__
46 #include <stdarg.h>
47 #else
48 #include <varargs.h>
49 #endif
50 
51 /*
52  * scanw --
53  *	Implement a scanf on the standard screen.
54  */
55 int
56 #ifdef __STDC__
57 scanw(const char *fmt, ...)
58 #else
59 scanw(fmt, va_alist)
60 	char *fmt;
61 	va_dcl
62 #endif
63 {
64 	va_list ap;
65 	int ret;
66 
67 #ifdef __STDC__
68 	va_start(ap, fmt);
69 #else
70 	va_start(ap);
71 #endif
72 	ret = vwscanw(stdscr, fmt, ap);
73 	va_end(ap);
74 	return (ret);
75 }
76 
77 /*
78  * wscanw --
79  *	Implements a scanf on the given window.
80  */
81 int
82 #ifdef __STDC__
83 wscanw(WINDOW *win, const char *fmt, ...)
84 #else
85 wscanw(win, fmt, va_alist)
86 	WINDOW *win;
87 	char *fmt;
88 	va_dcl
89 #endif
90 {
91 	va_list ap;
92 	int ret;
93 
94 #ifdef __STDC__
95 	va_start(ap, fmt);
96 #else
97 	va_start(ap);
98 #endif
99 	ret = vwscanw(win, fmt, ap);
100 	va_end(ap);
101 	return (ret);
102 }
103 
104 /*
105  * mvscanw, mvwscanw --
106  *	Implement the mvscanw commands.  Due to the variable number of
107  *	arguments, they cannot be macros.  Another sigh....
108  */
109 int
110 #ifdef __STDC__
111 mvscanw(register int y, register int x, const char *fmt,...)
112 #else
113 mvscanw(y, x, fmt, va_alist)
114 	register int y, x;
115 	char *fmt;
116 	va_dcl
117 #endif
118 {
119 	va_list ap;
120 	int ret;
121 
122 	if (move(y, x) != OK)
123 		return (ERR);
124 #ifdef __STDC__
125 	va_start(ap, fmt);
126 #else
127 	va_start(ap);
128 #endif
129 	ret = vwscanw(stdscr, fmt, ap);
130 	va_end(ap);
131 	return (ret);
132 }
133 
134 int
135 #ifdef __STDC__
136 mvwscanw(register WINDOW * win, register int y, register int x,
137     const char *fmt, ...)
138 #else
139 mvwscanw(win, y, x, fmt, va_alist)
140 	register WINDOW *win;
141 	register int y, x;
142 	char *fmt;
143 	va_dcl
144 #endif
145 {
146 	va_list ap;
147 	int ret;
148 
149 	if (move(y, x) != OK)
150 		return (ERR);
151 #ifdef __STDC__
152 	va_start(ap, fmt);
153 #else
154 	va_start(ap);
155 #endif
156 	ret = vwscanw(win, fmt, ap);
157 	va_end(ap);
158 	return (ret);
159 }
160 
161 /*
162  * vwscanw --
163  *	This routine actually executes the scanf from the window.
164  */
165 int
166 vwscanw(win, fmt, ap)
167 	WINDOW *win;
168 	const char *fmt;
169 	va_list ap;
170 {
171 
172 	char buf[1024];
173 
174 	return (wgetstr(win, buf) == OK ?
175 	    vsscanf(buf, fmt, ap) : ERR);
176 }
177