diff -r 3020f8c76baa -r 9e7897f25e13 testing4/re_test1.scala
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testing4/re_test1.scala	Thu Nov 29 17:15:11 2018 +0000
@@ -0,0 +1,24 @@
+
+
+ 
+assert(nullable(ZERO) == false)
+assert(nullable(ONE) == true)
+assert(nullable(CHAR('a')) == false)
+assert(nullable(ZERO | ONE) == true)
+assert(nullable(ZERO | CHAR('a')) == false)
+assert(nullable(ONE ~  ONE) == true)
+assert(nullable(ONE ~ CHAR('a')) == false)
+assert(nullable(STAR(ZERO)) == true)
+
+
+
+//import scala.concurrent._
+//import scala.concurrent.duration._
+//import ExecutionContext.Implicits.global
+//import scala.language.postfixOps 
+//import scala.language.reflectiveCalls
+
+//lazy val f = Future {
+
+//}
+//Await.result(f,30 second)