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app51.scala
author Christian Urban <christian dot urban at kcl dot ac dot uk>
Sat, 24 Nov 2012 14:58:27 +0000
changeset 77 49c0beef79a1
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abstract class Rexp
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case object NULL extends Rexp













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case object EMPTY extends Rexp













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case class CHAR(c: Char) extends Rexp













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case class ALT(r1: Rexp, r2: Rexp) extends Rexp













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case class SEQ(r1: Rexp, r2: Rexp) extends Rexp













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case class STAR(r: Rexp) extends Rexp















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