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//import scala.concurrent._
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//import scala.concurrent.duration._
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//import ExecutionContext.Implicits.global
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//import scala.language.postfixOps
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//import scala.language.reflectiveCalls
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160
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//lazy val f = Future {
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import CW8a._
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assert(simp(ZERO | ONE) == ONE)
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assert(simp(STAR(ZERO | ONE)) == STAR(ZERO | ONE))
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assert(simp(ONE ~ (ONE ~ (ONE ~ CHAR('a')))) == CHAR('a'))
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assert(simp(ONE ~ (ONE ~ (ONE ~ ZERO))) == ZERO)
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assert(simp(ALT(ONE ~ (ONE ~ (ONE ~ ZERO)), CHAR('a'))) == CHAR('a'))
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assert(simp(CHAR('a') | CHAR('a')) == CHAR('a'))
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assert(simp(ONE | CHAR('a')) == (ONE | CHAR('a')))
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assert(simp(ALT((CHAR('a') | ZERO) ~ ONE,
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((ONE | CHAR('b')) | CHAR('c')) ~ (CHAR('d') ~ ZERO))) == CHAR('a'))
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//}
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//Await.result(f, 30 second)
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