Added first example.

examples/true/trueArgGrammarDriver.hpp

@@ -0,0 +1,50 @@
+#pragma once
+
+#include "trueArgGrammarParser.tab.hh"
+#include <iostream>
+#include <map>
+#include <optional>
+#include <string>
+
+namespace trueArgGrammar {
+	enum class SingleArg { help, version };
+
+	class Scanner;
+
+	class Driver {
+	public:
+		enum class Result { success, completedAction, wrongArgument };
+
+		Driver(int argc, char* argv[]);
+		virtual ~Driver();
+
+		Result parse();
+
+		void addArg(const SingleArg flag, const std::string value);
+		std::optional<std::string> getArg(const SingleArg flag) const;
+		void setResult(Result result);
+
+		const std::map<SingleArg, std::string>& getSingleArgs() const;
+
+		std::ostream& print(std::ostream& oss);
+
+		char** getArgv();
+
+	private:
+		int argc;
+		char** argv;
+
+		Result result = Result::success;
+
+		void parseHelper(std::istream& iss);
+
+		trueArgGrammar::Parser* parser = nullptr;
+		trueArgGrammar::Scanner* scanner = nullptr;
+
+		/*
+		 * specialised data store
+		 */
+
+		std::map<SingleArg, std::string> singleArguments;
+	};
+} // namespace trueArgGrammar