ea.hpp

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/*********************************************************************/
// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2024 Denis Corbin
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// to contact the author, see the AUTHOR file
/*********************************************************************/
 
 
#ifndef EA_HPP
#define EA_HPP
 
#include "../my_config.h"
#include <map>
#include <string>
#include "infinint.hpp"
#include "mask.hpp"
 
namespace libdar
{
 
 
    class archive_version;
    class generic_file;
 
 
    class ea_attributs
    {
    public:
        ea_attributs() { alire = attr.begin(); };
        ea_attributs(generic_file & f, const archive_version & edit);
        ea_attributs(const ea_attributs & ref);
    ea_attributs(ea_attributs && ref) noexcept;
    ea_attributs & operator = (const ea_attributs & ref);
    ea_attributs & operator = (ea_attributs && ref) noexcept;
    ~ea_attributs() = default;
 
    bool operator == (const ea_attributs & ref) const { return attr == ref.attr; };
 
        void dump(generic_file & f) const;
        void add(const std::string & key, const std::string & value) { attr[key] = value; };
        void reset_read() const;
        bool read(std::string & key, std::string & value) const;
        infinint size() const { return attr.size(); };
        void clear() { attr.clear(); alire = attr.begin(); };
        bool find(const std::string &key, std::string & found_value) const;
        bool diff(const ea_attributs & other, const mask & filter) const;
    infinint space_used() const;
 
 
    ea_attributs operator + (const ea_attributs & arg) const;
 
    private:
    std::map<std::string, std::string> attr;
    mutable std::map<std::string, std::string>::const_iterator alire;
    };
 
 
} // end of namespace
 
#endif