/* -*- 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_I18NUTIL_ONETOONEMAPPING_HXX

#define INCLUDED_I18NUTIL_ONETOONEMAPPING_HXX

#include <i18nutil/i18nutildllapi.h>

#include <memory>

#include <config_options.h>

namespace i18nutil {

struct OneToOneMappingTable_t

{

    sal_Unicode first;

    sal_Unicode second;

};

typedef sal_Int8 UnicodePairFlag;

struct UnicodePairWithFlag

{

    sal_Unicode first;

    sal_Unicode second;

    UnicodePairFlag flag;

};

class UNLESS_MERGELIBS(I18NUTIL_DLLPUBLIC) oneToOneMapping

{

private:

    oneToOneMapping(const oneToOneMapping&) = delete;

    oneToOneMapping& operator=(const oneToOneMapping&) = delete;

public:

    oneToOneMapping( OneToOneMappingTable_t const *rpTable, const size_t rnSize, const size_t rnUnitSize = sizeof(OneToOneMappingTable_t) );

    virtual ~oneToOneMapping();

    // binary search

    virtual sal_Unicode find( const sal_Unicode nKey ) const;

    // translator

    sal_Unicode operator[] ( const sal_Unicode nKey ) const { return find( nKey ); };

protected:

    OneToOneMappingTable_t const *mpTable;

    size_t                  mnSize;

};

class oneToOneMappingWithFlag final : public oneToOneMapping

{

private:

    oneToOneMappingWithFlag(const oneToOneMappingWithFlag&) = delete;

    oneToOneMappingWithFlag& operator=(const oneToOneMappingWithFlag&) = delete;

    friend class widthfolding;

public:

    oneToOneMappingWithFlag( UnicodePairWithFlag const *rpTableWF, const size_t rnSize, const UnicodePairFlag rnFlag );

    virtual ~oneToOneMappingWithFlag() override;

    // make index for fast search

    void makeIndex();

    // index search

    virtual sal_Unicode find( const sal_Unicode nKey ) const override;

private:

    UnicodePairWithFlag const *mpTableWF;

    UnicodePairFlag       mnFlag;

    std::unique_ptr<UnicodePairWithFlag const *[]> mpIndex[256];

    bool                  mbHasIndex;

};

}

#endif // _I18N_TRANSLITERATION_ONETOONEMAPPING_HXX_

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