Added EOF symbol, making the getTable() saner for ACCEPT and lookahead support in ParseRule

include/Lexer.h

@@ -0,0 +1,20 @@
+#ifndef LEXER_H
+#define LEXER_H
+
+#include "util.h"
+#include "StringReader.h"
+#include "Symbol.h"
+
+#include <string>
+
+class Lexer {
+	public:
+		Lexer();
+		Lexer(std::string inputString);
+		~Lexer();
+		void setInput(std::string inputString);
+		Symbol* next();
+	private:
+		StringReader reader;
+};
+#endif