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File: [cvs.NetBSD.org] / src / lib / libcurses / underscore.c (download)

Revision 1.1, Tue Apr 13 14:08:19 1999 UTC (24 years, 11 months ago) by mrg
Branch: MAIN
CVS Tags: wrstuden-devbsize-base, wrstuden-devbsize-19991221, wrstuden-devbsize, curses-v3-base, comdex-fall-1999-base, comdex-fall-1999
Branch point for: curses-v3

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!

/*	$NetBSD: underscore.c,v 1.1 1999/04/13 14:08:19 mrg Exp $	*/

/*
 * Copyright (c) 1999 Julian. D. Coleman
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "curses.h"

/*
 * wunderscore
 *	Enter underscore mode.
 */
int
wunderscore(win)
	WINDOW *win;
{
	/*
	 * If can underscore, set the screen underscore bit.
	 */
	if ((US != NULL && UE != NULL) || UC != NULL) {
#ifdef DEBUG
		__CTRACE("wunderscore\n");
#endif
		win->flags |= __WUNDERSCORE;
	}
	return (1);
}

/*
 * wunderend --
 *	Exit underscore mode.
 */
int
wunderend(win)
	WINDOW *win;
{
	if (UE != NULL) {
#ifdef DEBUG
		__CTRACE("wunderuend\n");
#endif
		win->flags &= ~__WUNDERSCORE;
	}
        return 1;
}