lib/dokkit/resource/document.rb in dokkit-0.4.3 vs lib/dokkit/resource/document.rb in dokkit-0.4.4

@@ -119,10 +119,14 @@
           @logger.warn("Layout file '#{get_layout_filename(name, format)}' does not exists for '#{source_fn}'!")
         end
       end
 
       def default_filter_chain_for(formatter, format)
-        @configuration[:default_filter_chain][formatter][format]
+        if @configuration[:default_filter_chain][formatter].has_key?(format)
+          @configuration[:default_filter_chain][formatter][format]
+        else
+          @logger.error("Output format '#{format}' is not available for '#{formatter}' formatter.")
+        end
       end
 
       def default_postfilter_chain_for(format)
         @configuration[:default_postfilter_chain][format]
       end