# File lib/xml/util/xmlcanonicalizer.rb, line 402
      def logging=(state)
                        if (state)
                         @logger = Logger.new("xmlcanonicalizer")
                         @logger.level = DEBUG
                         @logger.trace = false
                         p = PatternFormatter.new(:pattern => "[%l] %d :: %.100m %15t")
                         @logger.add(FileOutputter.new("wss4r", {:filename => "xmlcanonicalizer.log", :formatter => BasicFormatter}))
                        else
                                @logger = nil
                        end
                end