--- a/progs/re3.scala	Wed Oct 19 08:46:50 2016 +0100
+++ b/progs/re3.scala	Sat Oct 22 13:11:33 2016 +0100
@@ -63,6 +63,9 @@
 def matcher(r: Rexp, s: String) : Boolean = nullable(ders(s.toList, r))
 
 
+var regex = NTIMES(CHAR('a'),5)
+println(matcher(regex,"aaaaa"))
+
 //one or zero
 def OPT(r: Rexp) = ALT(r, ONE)