elementdescriptor.h

/***************************************************************************
*   Copyright (C) 2014 by Okkel Klaver   *
*   info@vanhetland.nl   *
*                                                                         *
*   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, Inc.,                                       *
*   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
***************************************************************************/

#ifndef SEPARATISTA_ELEMENTDESCRIPTOR_H
#define SEPARATISTA_ELEMENTDESCRIPTOR_H

#include <Windows.h>

#include "separatista/separatista.h"

#define SEPARATISTA_ELEMENTS(name) sizeof(name) / sizeof(ElementDescriptor), name
#define SEPARATISTA_TAG(tag) TEXT(tag), Separatista::HashTag(TEXT(tag))

namespace Separatista
{
    template<size_t L>
    constexpr unsigned int HashTag(const wchar_t (&str)[L], size_t n = L - 1)
    {
        return n == 0 ? str[n] : HashTag(str, n - 1) + (str[n] << n);
    }

    // Forward decl
    class Element;
    class Validator;
    struct ChildElementDescriptor;

    struct ElementDescriptor
    {
        const ElementDescriptor *m_pTypeParent;
        Element* (*m_pfCreateElement)(const ChildElementDescriptor*);
        void (*m_pfnValidate)(const wchar_t *pValue, Element *pElement);
        size_t m_nElementCount;
        const ChildElementDescriptor *m_pChildren;
    };

    struct ChildElementDescriptor
    {
        const wchar_t *m_pTag;
        unsigned int m_nHash;
        size_t m_nMin;
        size_t m_nMax;
        const ElementDescriptor *m_pElementDescriptor;
    };

}

#endif // !defined SEPARATISTA_ELEMENTDESCRIPTOR_H