--- a/parser3.scala	Wed Nov 28 08:28:26 2012 +0000
+++ b/parser3.scala	Mon Dec 03 15:35:27 2012 +0000
@@ -1,5 +1,9 @@
+package object parser {
 
-// parser combinators with input type I and return type T
+// parser combinators 
+// with input type I and return type T
+//
+// needs to be compiled with scalac parser3.scala
 
 abstract class Parser[I <% Seq[_], T] {
   def parse(ts: I): Set[(T, I)]
@@ -34,4 +38,4 @@
     for ((head, tail) <- p.parse(sb)) yield (f(head), tail)
 }
 
-
+}