/*
 * $Id$
 *
 * Copyright (C) 2003  Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Original Author: Adrian Havill <havill@redhat.com>
 *
 * Contributors:
 */

#include "wlite_config.h"   // wchar_t, NULL, size_t

#include "wlite_wchar.h"    // prototypes
#include "wlite_wctype.h"
#include "wlite_stdlib.h"

int
wlite_wcscoll(const wchar_t *s1, const wchar_t *s2) {
    wchar_t src1[2] = { L'\0', L'\0' }, src2[2] = { L'\0', L'\0' };
    int result;

    do {
        wchar_t dst1[2], dst2[2];
        size_t n;

        do {
            src1[0] = *s1++;
            n = wlite_wcsxfrm(dst1, src1, 2);
        } while (n != 1 && src1[0] != L'\0');
        do {
            src2[0] = *s2++;
            n = wlite_wcsxfrm(dst2, src2, 2);
        } while (n != 1 && src2[0] != L'\0');
        result = wlite_wcscmp(dst1, dst2);
    } while (result == 0 && src1[0] != L'\0' && src2[0] != L'\0');
    return result;
}