- updated to current Scala compiler

- added main() for testing

1 files changed, 21 insertions, 10 deletions

diff --git a/sources/examples/sort2.scala b/sources/examples/sort2.scala
index a4e32a9cd4..f143958471 100644
--- a/sources/examples/sort2.scala
+++ b/sources/examples/sort2.scala
@@ -1,12 +1,23 @@
-module sorter {
+object sorter {
+
+  def sort(a: List[Int]): List[Int] = {
+    if (a.length < 2)
+      a
+    else {
+      val pivot = a(a.length / 2);
+      def lePivot(x: Int) = x < pivot;
+      def gtPivot(x: Int) = x > pivot;
+      def eqPivot(x: Int) = x == pivot;
+      sort(a filter lePivot)
+        ::: sort(a filter eqPivot)
+        ::: sort(a filter gtPivot)
+    }
+  }
+
+  def main(args: Array[String]) = {
+    val xs = List(6, 2, 8, 5, 1);
+    Console.println(xs);
+    Console.println(sort(xs));
+  }
 
-def sort (a: List[Int]): List[Int] = {
-  val pivot = a at (a.length / 2);
-  def leqPivot(x: Int) = x <= pivot;
-  def gtPivot(x: Int) = x > pivot;
-  def eqPivot(x: Int) = x == pivot;
-  sort(a filter leqPivot)
-    ::: sort(a filter eqPivot)
-    ::: sort(a filter gtPivot)
-}
 }
\ No newline at end of file