no message

src/Common/CommonConstants.java

@@ -0,0 +1,7 @@
+package Common;
+public class CommonConstants {
+    public static final int Nan = -1;
+    public static char[] regular_metasymbols = new char[]{
+            '<', '>', '(', ')', '[', ']', '{', '}', '^', '-', '=', '$', '!', '|', '?', '*', '+', '.'
+    };
+}