/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_SAL_RTL_SURROGATES_HXX
#define INCLUDED_SAL_RTL_SURROGATES_HXX

#include "sal/config.h"

#define SAL_RTL_FIRST_HIGH_SURROGATE 0xD800
#define SAL_RTL_LAST_HIGH_SURROGATE 0xDBFF
#define SAL_RTL_FIRST_LOW_SURROGATE 0xDC00
#define SAL_RTL_LAST_LOW_SURROGATE 0xDFFF

#define SAL_RTL_IS_HIGH_SURROGATE(utf16) \
    ((utf16) >= SAL_RTL_FIRST_HIGH_SURROGATE && \
     (utf16) <= SAL_RTL_LAST_HIGH_SURROGATE)

#define SAL_RTL_IS_LOW_SURROGATE(utf16) \
    ((utf16) >= SAL_RTL_FIRST_LOW_SURROGATE && \
     (utf16) <= SAL_RTL_LAST_LOW_SURROGATE)

#define SAL_RTL_COMBINE_SURROGATES(high, low) \
    ((((high) - SAL_RTL_FIRST_HIGH_SURROGATE) << 10) + \
     ((low) - SAL_RTL_FIRST_LOW_SURROGATE) + 0x10000)

#endif

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