/*
   core/cvar.h
   This file is part of the Osirion project and is distributed under 
   the terms of the GNU General Public License version 2 
*/

#ifndef __INCLUDED_CORE_CVAR_H__
#define __INCLUDED_CORE_CVAR_H__

#include <sstream>

namespace core {

/** new cvars have to be added through the cvar::set functions
 *  and not created directly.
 */
class Cvar_t {
public:
	Cvar_t(const char *cvarname, unsigned int cvarflags = 0);
	Cvar_t(const std::string &cvarname, unsigned int cvarflags = 0);

	inline const std::string &name() const { return cvar_name; }
	inline const std::string &value() const {return cvar_value; }

	Cvar_t &operator=(const char *cvarvalue);
	Cvar_t &operator=(const std::string &cvarvalue);
	Cvar_t &operator=(int cvarvalue);

private:
	std::string cvar_name;
	std::string cvar_value;
	unsigned int cvar_flags;
};

typedef Cvar_t *Cvar;

/// the cvar registry
namespace cvar 
{

/// create a new cvar containing a string value
Cvar set(const char *cvarname, const char *value);

/// create a new cvar containing an integer value
Cvar set(const char *cvarname, int value);

/// delete a cvar
void unset(const char *cvarname);

// delete a cvar
void unset(const std::string &cvarname);

/// search for a named cvar, returns 0 if not found
Cvar find(const std::string &cvarname);
/// search for a named cvar, returns 0 if not found
Cvar find(const char *cvarname);

} // namespace cvar

} // namespace core

#endif // __INCLUDED_CORE_CVAR_H__