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

Revision 1.4, Fri Jan 6 13:53:18 2017 UTC (7 years, 2 months ago) by roy
Branch: MAIN
CVS Tags: prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-compat-base, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, matt-nb8-mediatek-base, matt-nb8-mediatek, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan
Branch point for: phil-wifi, pgoyette-compat
Changes since 1.3: +8 -8 lines

KNF.
Normalise coding style.
White space police.
Sprinkle some extra braces to make the flow more clear.

No functional changes.

/*   $NetBSD: in_wch.c,v 1.4 2017/01/06 13:53:18 roy Exp $ */

/*
 * Copyright (c) 2005 The NetBSD Foundation Inc.
 * All rights reserved.
 *
 * This code is derived from code donated to the NetBSD Foundation
 * by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>.
 *
 *
 * 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. Neither the name of the NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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
__RCSID("$NetBSD: in_wch.c,v 1.4 2017/01/06 13:53:18 roy Exp $");
#endif						  /* not lint */

#include "curses.h"
#include "curses_private.h"

/*
 * in_wch --
 *	Return wide character at cursor position from stdscr.
 */
int
in_wch(cchar_t *wcval)
{
#ifndef HAVE_WCHAR
	return ERR;
#else
	return win_wch(stdscr, wcval);
#endif /* HAVE_WCHAR */
}

/*
 * mvin_wch --
 *  Return wide character at position (y, x) from stdscr.
 */
int
mvin_wch(int y, int x, cchar_t *wcval)
{
#ifndef HAVE_WCHAR
	return ERR;
#else
	return mvwin_wch(stdscr, y, x, wcval);
#endif /* HAVE_WCHAR */
}

/*
 * mvwin_wch --
 *  Return wide character at position (y, x) from the given window.
 */
int
mvwin_wch(WINDOW *win, int y, int x, cchar_t *wcval)
{
#ifndef HAVE_WCHAR
	return ERR;
#else
	if (wmove(win, y, x) == ERR)
		return ERR;

	return win_wch(win, wcval);
#endif /* HAVE_WCHAR */
}

/*
 * win_wch --
 *	Return wide character at cursor position.
 */
int
win_wch(WINDOW *win, cchar_t *wcval)
{
#ifndef HAVE_WCHAR
	return ERR;
#else
	nschar_t *np;
	__LDATA *lp = &win->alines[win->cury]->line[win->curx];
	int cw = WCOL(*lp);

	if (cw < 0)
		lp += cw;
	wcval->vals[0] = lp->ch;
	wcval->attributes = lp->attr;
	wcval->elements = 1;
	np = lp->nsp;
	if (np) {
		do {
			wcval->vals[wcval->elements++] = np->ch;
			np = np-> next;
		} while (np);
	}

	return OK;
#endif /* HAVE_WCHAR */
}