+
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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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+
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//lazy val f = Future {+
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  import CW8a._+
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+
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  val EVIL_urban = SEQ(STAR(STAR(CHAR('a'))), CHAR('b'))+
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+
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  assert(size(der('a', der('a', EVIL_urban))) == 28)+
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  assert(size(der('a', der('a', der('a', EVIL_urban)))) == 58)+
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+
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  assert(size(ders("aaaaaa".toList, EVIL_urban)) == 8)+
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//}+
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+
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//Await.result(f, 120 second)+
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