quickerNES/extern/hqn/options.h

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#ifndef __OPTIONS_H__
#define __OPTIONS_H__
#include <string>
#include <map>
/**
* Compare two strings case-insensitively.
*/
int string_icompare(const std::string& a, const std::string &b);
/**
* Holds options provides an interface to load them
* and save them.
*/
class Options
{
public:
Options();
~Options();
/**
* Tries to load options from the filename.
* If the file cannot be opened returns -1,
* if there is an error returns the line the error was on (starting at 1).
* Otherwise returns 0.
*/
int load(const std::string &filename);
/**
* Save the options to the named file.
* If all goes well returns 0 otherwise returns an error code.
*
* Errors:
* -1 = failed to open file
*/
int save(const std::string &filename);
/**
* Get a named integer or return the default value.
*/
int getInt(const std::string &name, int def=0);
/**
* Get the option as a double.
*/
double getNum(const std::string &name, double def=0.0);
/**
* Get the named option as a boolean or use the default value.
*/
bool getBool(const std::string &name, bool def=false);
/**
* Get the given option as a string, or return the default value.
* @param name the name of the option to get
* @param def default value if name is not found
*/
const std::string &getString(const std::string &name, const std::string &def="");
/**
* Check if the option set has the given option.
*/
bool has(const std::string &name);
/**
* Set a value in the options.
*/
void set(const std::string &name, const std::string &value);
void set(const std::string &name, double value);
void set(const std::string &name, bool value);
private:
std::map<std::string, std::string> m_data;
};
#endif // __OPTIONS_H__