# File lib/ruby-vpi/xx.rb, line 521
521:       def xx_config_for key, xx_which = nil
522: #--{{{
523:         key = key.to_s
524:         xx_which ||= self
525:         xx_ancestors(xx_which).each do |a|
526:           if xx_config[a].has_key? key
527:             return xx_config[a][key]
528:           end
529:         end
530:         nil
531: #--}}}
532:       end