/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License (the "License").

 * You may not use this file except in compliance with the License.

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.

 * Use is subject to license terms.

 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#include "lint.h"

#include <euc.h>

#include <ctype.h>

/*

 * euccol(s) returns the screen column width of the EUC char.

 */

int

euccol(const unsigned char *s)

{

	if (ISASCII(*s))

		return (1);

	else

		switch (*s) {

		case SS2:

			return (scrw2);

		case SS3:

			return (scrw3);

		default: /* code set 1 */

			return (scrw1);

		}

}

/*

 * euclen(s,n) returns the code width of the  EUC char.

 * May also be implemented as a macro.

 */

int

euclen(const unsigned char *s)

{

	if (ISASCII(*s))

		return (1);

	else

		switch (*s) {

		case SS2:

			return (eucw2 + 1); /* include SS2 */

		case SS3:

			return (eucw3 + 1); /* include SS3 */

		default: /* code set 1 */

			return (eucw1);

		}

}

/* this function will return the number of display column for a */

/* given euc string.						*/

int

eucscol(const unsigned char *s)

{

	int	col = 0;

	while (*s) { /* end if euc char is a NULL character */

		if (ISASCII(*s)) {

			col += 1;

			s++;

		}

		else

			switch (*s) {

			case SS2:

				col += scrw2;

				s += (eucw2 +1);

				break;

			case SS3:

				col += scrw3;

				s += (eucw3 +1);

				break;

			default:	/* code set 1 */

				col += scrw1;

				s += eucw1;

				break;

			}

	}

	return (col);

}