xref: /netbsd-src/lib/libcurses/scanw.c (revision 1f2744e6e4915c9da2a3f980279398c4cf7d5e6d)
1 /*
2  * Copyright (c) 1981, 1993, 1994
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 static char sccsid[] = "@(#)scanw.c	8.3 (Berkeley) 5/4/94";
36 #endif	/* not lint */
37 
38 /*
39  * scanw and friends.
40  */
41 
42 #ifdef __STDC__
43 #include <stdarg.h>
44 #else
45 #include <varargs.h>
46 #endif
47 
48 #include "curses.h"
49 
50 /*
51  * scanw --
52  *	Implement a scanf on the standard screen.
53  */
54 int
55 #ifdef __STDC__
56 scanw(const char *fmt, ...)
57 #else
58 scanw(fmt, va_alist)
59 	char *fmt;
60 	va_dcl
61 #endif
62 {
63 	va_list ap;
64 	int ret;
65 
66 #ifdef __STDC__
67 	va_start(ap, fmt);
68 #else
69 	va_start(ap);
70 #endif
71 	ret = vwscanw(stdscr, fmt, ap);
72 	va_end(ap);
73 	return (ret);
74 }
75 
76 /*
77  * wscanw --
78  *	Implements a scanf on the given window.
79  */
80 int
81 #ifdef __STDC__
82 wscanw(WINDOW *win, const char *fmt, ...)
83 #else
84 wscanw(win, fmt, va_alist)
85 	WINDOW *win;
86 	char *fmt;
87 	va_dcl
88 #endif
89 {
90 	va_list ap;
91 	int ret;
92 
93 #ifdef __STDC__
94 	va_start(ap, fmt);
95 #else
96 	va_start(ap);
97 #endif
98 	ret = vwscanw(win, fmt, ap);
99 	va_end(ap);
100 	return (ret);
101 }
102 
103 /*
104  * mvscanw, mvwscanw --
105  *	Implement the mvscanw commands.  Due to the variable number of
106  *	arguments, they cannot be macros.  Another sigh....
107  */
108 int
109 #ifdef __STDC__
110 mvscanw(register int y, register int x, const char *fmt,...)
111 #else
112 mvscanw(y, x, fmt, va_alist)
113 	register int y, x;
114 	char *fmt;
115 	va_dcl
116 #endif
117 {
118 	va_list ap;
119 	int ret;
120 
121 	if (move(y, x) != OK)
122 		return (ERR);
123 #ifdef __STDC__
124 	va_start(ap, fmt);
125 #else
126 	va_start(ap);
127 #endif
128 	ret = vwscanw(stdscr, fmt, ap);
129 	va_end(ap);
130 	return (ret);
131 }
132 
133 int
134 #ifdef __STDC__
135 mvwscanw(register WINDOW * win, register int y, register int x,
136     const char *fmt, ...)
137 #else
138 mvwscanw(win, y, x, fmt, va_alist)
139 	register WINDOW *win;
140 	register int y, x;
141 	char *fmt;
142 	va_dcl
143 #endif
144 {
145 	va_list ap;
146 	int ret;
147 
148 	if (move(y, x) != OK)
149 		return (ERR);
150 #ifdef __STDC__
151 	va_start(ap, fmt);
152 #else
153 	va_start(ap);
154 #endif
155 	ret = vwscanw(win, fmt, ap);
156 	va_end(ap);
157 	return (ret);
158 }
159 
160 /*
161  * vwscanw --
162  *	This routine actually executes the scanf from the window.
163  */
164 int
165 vwscanw(win, fmt, ap)
166 	WINDOW *win;
167 	const char *fmt;
168 	va_list ap;
169 {
170 
171 	char buf[1024];
172 
173 	return (wgetstr(win, buf) == OK ?
174 	    vsscanf(buf, fmt, ap) : ERR);
175 }
176