Added first example.

examples/true/trueArgGrammarScanner.cpp

@@ -0,0 +1,30 @@
+#include "trueArgGrammarScanner.hpp"
+#include "trueArgGrammarDriver.hpp"
+
+namespace trueArgGrammar {
+	Scanner::Scanner(int argc, char* argv[], Driver& driver)
+	    : yyFlexLexer{}, argc{ argc }, argv{ argv }, argi{ 1 }, streamInput{}, resetVal{}, driver{
+		      driver
+	      } {
+		if (argi < argc)
+			streamInput << argv[argi];
+
+		switch_streams(&streamInput);
+	}
+
+	int Scanner::yywrap() {
+		++argi;
+		bool more = (argi < argc);
+
+		if (more) {
+			streamInput << argv[argi];
+			resetOnWrap();
+		}
+
+		return more ? 0 : 1;
+	}
+
+	void Scanner::setResult(Scanner::Result result) {
+		driver.setResult(result);
+	}
+} // namespace trueArgGrammar