1 files changed, 24 insertions, 0 deletions
diff --git a/lib/puppet/util/external_iterator.rb b/lib/puppet/util/external_iterator.rb
new file mode 100644
index 0000000..67b3375
--- /dev/null
+++ b/lib/puppet/util/external_iterator.rb
@@ -0,0 +1,24 @@
+module Puppet
+module Util
+  class ExternalIterator
+    def initialize(coll)
+      @coll = coll
+      @cur_index = 0
+    end
+
+    def next
+      @cur_index = @cur_index + 1
+      item_at(@cur_index)
+    end
+
+    def peek
+      item_at(@cur_index + 1)
+    end
+
+    private
+    def item_at(index)
+      [@coll[index], index]
+    end
+  end
+end
+end