--- a/progs/re1.scala Mon Aug 22 23:05:43 2016 +0200
+++ b/progs/re1.scala Tue Aug 23 12:26:13 2016 +0200
@@ -55,7 +55,8 @@
}
// the evil regular expression a?{n} a{n}
-def EVIL(n: Int) = SEQ(NTIMES(OPT(CHAR('a')), n), NTIMES(CHAR('a'), n))
+def EVIL1(n: Int) = SEQ(NTIMES(OPT(CHAR('a')), n), NTIMES(CHAR('a'), n))
+val EVIL2 = SEQ(STAR(CHAR('a')), CHAR('b'))
//for measuring time
def time_needed[T](i: Int, code: => T) = {
@@ -66,8 +67,11 @@
}
-for (i <- 1 to 29) {
- println(i + ": " + "%.5f".format(time_needed(1, matches(EVIL(i), "a" * i))))
+for (i <- 1 to 20) {
+ println(i + ": " + "%.5f".format(time_needed(2, matches(EVIL1(i), "a" * i))))
}
+for (i <- 1 to 6502 by 500) {
+ println(i + " " + "%.5f".format(time_needed(2, matches(EVIL2, "a" * i))))
+}