lib/pupa/processor/helper.rb in pupa-0.0.10 vs lib/pupa/processor/helper.rb in pupa-0.0.11

@@ -6,10 +6,12 @@
       # strips leading and ending spaces.
       #
       # @param [String] a string
       # @return [String] a clean string
       def clean(string)
-        string.gsub(/[[:space:]]/, ' ').squeeze(' ').strip
+        if string
+          string.gsub(/[[:space:]]/, ' ').squeeze(' ').strip
+        end
       end
     end
   end
 end