allwpilib/networktables/cpp/include/networktables2/util/StringCache.h

#ifndef _STRINGCACHE_H_
#define _STRINGCACHE_H_

#include <map>
#include <string>

/**
 * A simple cache that allows for caching the mapping of one string to another calculated one
 *
 * @author Mitchell
 *
 */
class StringCache {
private:
	std::map<std::string, std::string> cache;


	/**
	 * @param input
	 * @return the value for a given input
	 */
public:
	StringCache();
	virtual ~StringCache();


	std::string& Get(const std::string& input);

	/**
	 * Will only be called if a value has not already been calculated
	 * @param input
	 * @return the calculated value for a given input
	 */
	virtual std::string Calc(const std::string& input) = 0;
};

#endif