    # File lib/merb-core/dispatch/router/resources.rb, line 275
          def register_resource(*key)
            options     = extract_options_from_args!(key) || {}
            key         = [ @options[:resource_prefix], key ].flatten.compact
            identifiers = [ @options[:parent_keys], options[:identifiers] ]
            @route.resource = key
            @route.resource_identifiers = identifiers.flatten.compact.map { |id| id.to_sym }
            self
          end