NetBSD/lib/libcurses/scanw.c
mrg 586d4ce109 Upgrades the standard NetBSD curses library to provide some
of the SYSV curses facilities.  The added features are the collapsing
of arrow and function keysequences (as defined by termcap for the
terminal) into symbolic code returns thus relieving the application of
recognising multi-character key sequences.  Other features are the
capability to perform a timed wait for a key (good for when you are
not sure if there is a keypress ready or not) and the capability for
turning off the inter-key timeout when assembling multi-character
function keys.

this work was done by Julian Coleman <J.D.Coleman@newcastle.ac.uk>
and blymn@baea.com.au (Brett Lymn).  i'm just integrating it.  thanks
HEAPS guys!
1999-04-13 14:08:17 +00:00

180 lines
3.9 KiB
C

/* $NetBSD: scanw.c,v 1.10 1999/04/13 14:08:19 mrg Exp $ */
/*
* Copyright (c) 1981, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)scanw.c 8.3 (Berkeley) 5/4/94";
#else
__RCSID("$NetBSD: scanw.c,v 1.10 1999/04/13 14:08:19 mrg Exp $");
#endif
#endif /* not lint */
/*
* scanw and friends.
*/
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include "curses.h"
/*
* scanw --
* Implement a scanf on the standard screen.
*/
int
#ifdef __STDC__
scanw(const char *fmt,...)
#else
scanw(fmt, va_alist)
char *fmt;
va_dcl
#endif
{
va_list ap;
int ret;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
ret = vwscanw(stdscr, fmt, ap);
va_end(ap);
return (ret);
}
/*
* wscanw --
* Implements a scanf on the given window.
*/
int
#ifdef __STDC__
wscanw(WINDOW * win, const char *fmt,...)
#else
wscanw(win, fmt, va_alist)
WINDOW *win;
char *fmt;
va_dcl
#endif
{
va_list ap;
int ret;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
ret = vwscanw(win, fmt, ap);
va_end(ap);
return (ret);
}
/*
* mvscanw, mvwscanw --
* Implement the mvscanw commands. Due to the variable number of
* arguments, they cannot be macros. Another sigh....
*/
int
#ifdef __STDC__
mvscanw(int y, int x, const char *fmt,...)
#else
mvscanw(y, x, fmt, va_alist)
int y, x;
char *fmt;
va_dcl
#endif
{
va_list ap;
int ret;
if (move(y, x) != OK)
return (ERR);
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
ret = vwscanw(stdscr, fmt, ap);
va_end(ap);
return (ret);
}
int
#ifdef __STDC__
mvwscanw(WINDOW * win, int y, int x,
const char *fmt,...)
#else
mvwscanw(win, y, x, fmt, va_alist)
WINDOW *win;
int y, x;
char *fmt;
va_dcl
#endif
{
va_list ap;
int ret;
if (move(y, x) != OK)
return (ERR);
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
ret = vwscanw(win, fmt, ap);
va_end(ap);
return (ret);
}
/*
* vwscanw --
* This routine actually executes the scanf from the window.
*/
int
vwscanw(win, fmt, ap)
WINDOW *win;
const char *fmt;
va_list ap;
{
char buf[1024];
return (wgetstr(win, buf) == OK ?
vsscanf(buf, fmt, ap) : ERR);
}