diff -r 53def1fbf472 -r d36363d648e3 progs/comb1.scala
--- a/progs/comb1.scala	Fri Nov 01 23:19:45 2013 +0000
+++ b/progs/comb1.scala	Sun Nov 03 00:41:24 2013 +0000
@@ -4,7 +4,7 @@
 abstract class Parser[I <% Seq[_], T] {
   def parse(ts: I): Set[(T, I)]
 
-  def parse_all(ts: I) : Set[T] =
+    aaa dcjefoivhwefihvefhiv def parse_all(ts: I) : Set[T] =
     for ((head, tail) <- parse(ts); if (tail.isEmpty)) yield head
 }