add_route

# File actionpack/lib/action_dispatch/routing/mapper.rb, line 1477
        def add_route(action, options) # :nodoc:
          path = path_for_action(action, options.delete(:path))
          action = action.to_s.dup

          if action =~ /^[\w\-\/]+$/
            options[:action] ||= action.tr('-', '_') unless action.include?("/")
          else
            action = nil
          end

          if !options.fetch(:as, true)
            options.delete(:as)
          else
            options[:as] = name_for_action(options[:as], action)
          end

          mapping = Mapping.new(@set, @scope, URI.parser.escape(path), options)
          app, conditions, requirements, defaults, as, anchor = mapping.to_route
          @set.add_route(app, conditions, requirements, defaults, as, anchor)
        end