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/* $Id: RTUtf16NCmpUtf8.cpp $ */
/** @file
* IPRT - RTUtf16NCmpUtf8.
*/
/*
* Copyright (C) 2010-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/utf16.h>
#include "internal/iprt.h"
RTDECL(int) RTUtf16NCmpUtf8(PCRTUTF16 pwsz1, const char *psz2, size_t cwcMax1, size_t cchMax2)
{
if (!pwsz1 || !cwcMax1)
return -1;
if (!psz2 || !cchMax2)
return 1;
while (cwcMax1 > 0 && cchMax2 > 0)
{
RTUNICP uc1;
int rc = RTUtf16GetCpNEx(&pwsz1, &cwcMax1, &uc1);
if (RT_SUCCESS(rc))
{
RTUNICP uc2;
rc = RTStrGetCpNEx(&psz2, &cchMax2, &uc2);
if (RT_SUCCESS(rc))
{
if (uc1 != uc2)
return uc1 < uc2 ? -1 : 1;
if (!uc1)
return 0;
}
else
return 1;
}
}
return 0;
}
RT_EXPORT_SYMBOL(RTUtf16NCmpUtf8);
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