mbcharlen.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1997, by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include "curses_inc.h"
/*
* Get the # of valid characters
*/
int
mbcharlen(char *sp)
{
int n, m, k, ty;
chtype c;
n = 0;
for (; *sp != '\0'; ++sp, ++n)
if (ISMBIT(*sp)) {
c = RBYTE(*sp);
ty = TYPE(c & 0377);
m = cswidth[ty] - (ty == 0 ? 1 : 0);
for (sp += 1, k = 1; *sp != '\0' && k <= m; ++k,
++sp) {
c = RBYTE(*sp);
if (TYPE(c) != 0)
break;
}
if (k <= m)
break;
}
return (n);
}