Initial Commit

options.h

@@ -0,0 +1,63 @@
+#ifndef OPTIONS_H 
+#define OPTIONS_H
+
+#include <vector>
+#include <sstream>
+#include <fstream>
+#include <ostream>
+#include <unordered_map>
+
+namespace OptionLib {
+	class __OptionBase {
+	public:
+		const std::string key;
+
+		__OptionBase(const std::string &key);
+		virtual ~__OptionBase() = default;
+
+		virtual void setFromString(const std::string& value) = 0;
+
+		virtual void store(std::ostream& stream) = 0;
+	};
+
+
+	class OptionsBase {
+	private:
+		std::vector<__OptionBase*> options;
+		std::string comment = "";
+
+	public:
+		void registerOption(__OptionBase* opt);
+		const std::vector<__OptionBase*>& getOptions() const;
+		void store(const std::string& filename, std::string comment="");
+		void read(const std::string& filename);
+	};
+
+	template<typename T>
+	class Option : public __OptionBase{
+		private:
+			T value;
+		public:
+			Option(OptionsBase * parent, std::string name) : __OptionBase(name) {
+				parent->registerOption(this);
+			}
+			Option(OptionsBase * parent, std::string name, T defaultValue) : __OptionBase(name) {
+				parent->registerOption(this);
+				set(defaultValue);
+			}
+
+			const T& get() const {return value;}
+			void set(const T& v) {value = v;}
+
+			void setFromString(const std::string& str) override {
+				std::istringstream iss(str);
+				iss >> value;
+			}
+
+			void store(std::ostream& stream) {
+				stream << value;
+			};
+	};
+}
+
+#endif