text: /*
  Minetest
  Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
  
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  
  You should have received a copy of the GNU Lesser 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.
  */
  
  #ifndef METADATA_HEADER
  #define METADATA_HEADER
  
  #include "irr_v3d.h"
  #include <iostream>
  #include <vector>
  #include "util/string.h"
  
  class Metadata
  {
  public:
  	virtual ~Metadata() {}
  
  	virtual void clear();
  	virtual bool empty() const;
  
  	bool operator==(const Metadata &other) const;
  	inline bool operator!=(const Metadata &other) const
  	{
  		return !(*this == other);
  	}
  
  	//
  	// Key-value related
  	//
  
  	size_t size() const;
  	bool contains(const std::string &name) const;
  	const std::string &getString(const std::string &name, u16 recursion = 0) const;
  	virtual bool setString(const std::string &name, const std::string &var);
  	const StringMap &getStrings() const
  	{
  		return m_stringvars;
  	}
  	// Add support for variable names in values
  	const std::string &resolveString(const std::string &str, u16 recursion = 0) const;
  protected:
  	StringMap m_stringvars;
  
  };
  
  #endif
  