--- a/progs/scala/re.scala	Sun Feb 17 22:15:06 2019 +0000
+++ b/progs/scala/re.scala	Wed Feb 20 00:00:30 2019 +0000
@@ -19,6 +19,7 @@
 case class Right(v: Val) extends Val
 case class Stars(vs: List[Val]) extends Val
 case class Rec(x: String, v: Val) extends Val
+
    
 // some convenience for typing in regular expressions
 def charlist2rexp(s : List[Char]): Rexp = s match {