changeset 93 | 4794759139ea |
parent 92 | e85600529ca5 |
child 94 | 9ea667baf097 |
--- a/scala/app51.scala Sat Jun 15 09:11:11 2013 -0400 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,8 +0,0 @@ -abstract class Rexp - -case object NULL extends Rexp -case object EMPTY extends Rexp -case class CHAR(c: Char) extends Rexp -case class ALT(r1: Rexp, r2: Rexp) extends Rexp -case class SEQ(r1: Rexp, r2: Rexp) extends Rexp -case class STAR(r: Rexp) extends Rexp