testing4/re_test1.scala
author Christian Urban <urbanc@in.tum.de>
Mon, 11 Nov 2019 13:24:12 +0000
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import CW9c._
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assert(nullable(ZERO) == false)
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assert(nullable(ONE) == true)
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assert(nullable(CHAR('a')) == false)
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assert(nullable(ZERO | ONE) == true)
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assert(nullable(ZERO | CHAR('a')) == false)
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assert(nullable(ONE ~  ONE) == true)
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assert(nullable(ONE ~ CHAR('a')) == false)
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assert(nullable(STAR(ZERO)) == true)
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