--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testing4/re_test6.scala	Thu Oct 31 12:01:56 2019 +0000
@@ -0,0 +1,9 @@
+import CW9c._
+
+val EVIL_urban = SEQ(STAR(STAR(CHAR('a'))), CHAR('b'))
+
+
+assert(simp(Iterator.iterate(ONE:Rexp)(r => SEQ(r, ONE | ONE)).drop(50).next) == ONE)
+assert(simp(Iterator.iterate(ONE:Rexp)(r => ALT(r, r)).drop(20).next) == ONE)
+assert(matcher(EVIL_urban, "a" * 1000000) == false)
+assert(matcher(EVIL_urban, "a" * 1000000 ++ "b") == true)