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scanw.c revision 1.2 
      1 /*
      2  * Copyright (c) 1981 Regents of the University of California.
      3  * 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[] = "from: @(#)scanw.c	5.7 (Berkeley) 4/15/91";*/
     36 static char rcsid[] = "$Id: scanw.c,v 1.2 1993/08/01 18:35:25 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 /*
     40  * scanw and friends
     41  *
     42  */
     43 
     44 #if __STDC__
     45 #include <stdarg.h>
     46 #else
     47 #include <varargs.h>
     48 #endif
     49 #include "curses.ext"
     50 
     51 /*
     52  *	This routine implements a scanf on the standard screen.
     53  */
     54 #if __STDC__
     55 scanw(const char *fmt, ...)
     56 #else
     57 scanw(fmt, va_alist)
     58 	char *fmt;
     59 	va_dcl
     60 #endif
     61 {
     62 	va_list ap;
     63 	int ret;
     64 
     65 #if __STDC__
     66 	va_start(ap, fmt);
     67 #else
     68 	va_start(ap);
     69 #endif
     70 	ret = _sscans(stdscr, fmt, ap);
     71 	va_end(ap);
     72 	return ret;
     73 }
     74 
     75 /*
     76  *	This routine implements a scanf on the given window.
     77  */
     78 #if __STDC__
     79 wscanw(WINDOW *win, const char *fmt, ...)
     80 #else
     81 wscanw(win, fmt, va_alist)
     82 	WINDOW *win;
     83 	char *fmt;
     84 	va_dcl
     85 #endif
     86 {
     87 	va_list ap;
     88 	int ret;
     89 
     90 #if __STDC__
     91 	va_start(ap, fmt);
     92 #else
     93 	va_start(ap);
     94 #endif
     95 	ret = _sscans(win, fmt, ap);
     96 	va_end(ap);
     97 	return ret;
     98 }
     99 
    100 /*
    101  *	This routine actually executes the scanf from the window.
    102  *	THIS SHOULD BE RENAMED vwscanw AND EXPORTED
    103  */
    104 _sscans(win, fmt, ap)
    105 	WINDOW *win;
    106 #if __STDC__
    107 	const char *fmt;
    108 #else
    109 	char *fmt;
    110 #endif
    111 	va_list ap;
    112 {
    113 	char buf[100];
    114 
    115 	return wgetstr(win, buf) == OK ? vsscanf(buf, fmt, ap) : ERR;
    116 }
    117