Added structure for Regular Expressions, saving work as a backup because of software upgrade.

include/RegExState.h

@@ -0,0 +1,27 @@
+#ifndef REGEXSTATE_H
+#define REGEXSTATE_H
+
+#include "util.h"
+#include "Symbol.h"
+
+#include <string>
+#include <vector>
+
+class RegExState {
+	public:
+		RegExState(RegExState* inInnerState);
+		RegExState(char inCharacter);
+
+		~RegExState();
+
+		void addNext(RegExState* nextState);
+		bool characterIs(char inCharacter);
+		std::vector<RegExState*>* advance(char advanceCharacter);
+		bool isGoal();
+
+	private:
+		std::vector<RegExState*> nextStates;
+		RegExState* inner;
+		char character;
+};
+#endif