// TortoiseMerge - a Diff/Patch program

// Copyright (C) 2014, 2021 - TortoiseSVN

// 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; either version 2
// of the License, or (at your option) any later version.

// 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, write to the Free Software Foundation,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

#pragma once
#include "FileTextLines.h"

class CEditorConfigWrapper
{
public:
    bool Load(CString filename);

    template <typename T>
    class Nullable
    {
        T    m_value;
        bool m_bNull;

    public:
        Nullable()
            : m_value()
            , m_bNull(true)
        {
        }

        Nullable(T value)
            : m_value(value)
            , m_bNull(false)
        {
        }

        operator T()
        {
            return m_value;
        }

        void operator=(T value)
        {
            m_bNull = false;
            m_value = value;
        }

        void operator=(void* ptrNull)
        {
            if (ptrNull == nullptr)
                m_bNull = true;
        }

        bool operator==(void* ptrnull) const
        {
            return ptrnull == nullptr ? m_bNull : false;
        }

        bool operator!=(void* ptrnull) const
        {
            return ptrnull == nullptr ? !m_bNull : false;
        }
    };

    Nullable<bool>                        m_bIndentStyle;
    Nullable<int>                         m_nIndentSize;
    Nullable<int>                         m_nTabWidth;
    Nullable<EOL>                         m_endOfLine;
    Nullable<CFileTextLines::UnicodeType> m_charset;
    Nullable<bool>                        m_bTrimTrailingWhitespace;
    Nullable<bool>                        m_bInsertFinalNewline;
};