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scanw.c revision 1.6 
      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