fix code duplication

lib/parfait/layout.rb

@@ -71,16 +71,7 @@ module Parfait
     end
 
     def inspect
-      ret = "Layout["
-      index = 3
-      while index <= self.get_length
-        item = get(index)
-        ret += item.inspect
-        ret += "," unless index == self.get_length
-        index = index + 1
-      end
-      ret += "]"
-      ret
+      "Layout[#{inspect_from(3)}]"
     end
 
     def sof_reference_name

lib/parfait/list.rb

@@ -73,7 +73,7 @@ module Parfait
       return nil if empty?
       get(get_length())
     end
-    
+
     # set the value at index.
     # Lists start from index 1
     def set( index , value)
@@ -164,8 +164,11 @@ module Parfait
     end
 
     def inspect
+      inspect_from 1
+    end
+
+    def inspect_from index
       ret = ""
-      index = 1
       while index <= self.get_length
         item = get(index)
         ret += item.inspect