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progs/app03.scala
author Christian Urban <christian dot urban at kcl dot ac dot uk>
Sat, 18 Oct 2014 02:08:17 +0100
changeset 288 39aeca14af8c
child 400 e4afe3f46c29
permissions -rw-r--r--
updated
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
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abstract class Rexp
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Christian Urban <christian dot urban at kcl dot ac dot uk>
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case object NULL extends Rexp
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Christian Urban <christian dot urban at kcl dot ac dot uk>
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case object EMPTY extends Rexp
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Christian Urban <christian dot urban at kcl dot ac dot uk>
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case class CHAR(c: Char) extends Rexp
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Christian Urban <christian dot urban at kcl dot ac dot uk>
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case class ALT(r1: Rexp, r2: Rexp) extends Rexp
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Christian Urban <christian dot urban at kcl dot ac dot uk>
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case class SEQ(r1: Rexp, r2: Rexp) extends Rexp
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Christian Urban <christian dot urban at kcl dot ac dot uk>
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case class STAR(r: Rexp) extends Rexp
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Christian Urban <christian dot urban at kcl dot ac dot uk>
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case class REC(x: String, r: Rexp) extends Rexp
afl-material