equal
deleted
inserted
replaced
1 abstract class Rexp |
1 abstract class Rexp |
2 case object NULL extends Rexp |
2 case object ZERO extends Rexp |
3 case object EMPTY extends Rexp |
3 case object ONE extends Rexp |
4 case class CHAR(c: Char) extends Rexp |
4 case class CHAR(c: Char) extends Rexp |
5 case class ALT(r1: Rexp, r2: Rexp) extends Rexp |
5 case class ALT(r1: Rexp, r2: Rexp) extends Rexp |
6 case class SEQ(r1: Rexp, r2: Rexp) extends Rexp |
6 case class SEQ(r1: Rexp, r2: Rexp) extends Rexp |
7 case class STAR(r: Rexp) extends Rexp |
7 case class STAR(r: Rexp) extends Rexp |
8 case class REC(x: String, r: Rexp) extends Rexp |
8 case class REC(x: String, r: Rexp) extends Rexp |