Added first example.

examples/true/main.cpp

@@ -0,0 +1,28 @@
+#include "trueArgGrammarDriver.hpp"
+#include <sstream>
+
+using Result = trueArgGrammar::Driver::Result;
+
+int main(int argc, char* argv[]) {
+	trueArgGrammar::Driver driver{ argc, argv };
+	auto res = driver.parse();
+
+	if (res != Result::success) {
+		if (res == Result::completedAction)
+			return 0;
+
+		return -1;
+	}
+
+	std::cout << "true";
+
+	if (auto hasHelp = driver.getArg(trueArgGrammar::SingleArg::help)) {
+		std::cout << " --help";
+	} else if (auto hasVersion = driver.getArg(trueArgGrammar::SingleArg::version)) {
+		std::cout << " --version";
+	}
+
+	std::cout << std::endl;
+
+	return 0;
+}