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progs/app01.scala
author Christian Urban <urbanc@in.tum.de>
Thu, 21 Nov 2019 00:49:21 +0000
changeset 696 3a5a7908517f
parent 400 e4afe3f46c29
permissions -rw-r--r--
added krakatau version and made the mandel program work

abstract class Rexp
case object ZERO extends Rexp
case object ONE 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
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