normalize_options!

# File actionpack/lib/action_dispatch/routing/mapper.rb, line 97
          def normalize_options!
            @options.reverse_merge!(scope[:options]) if scope[:options]
            path_without_format = path.sub(/\(\.:format\)$/, '')

            # Add a constraint for wildcard route to make it non-greedy and match the
            # optional format part of the route by default
            if path_without_format.match(WILDCARD_PATH) && @options[:format] != false
              @options[$1.to_sym] ||= /.+?/
            end

            if path_without_format.match(':controller')
              raise ArgumentError, ":controller segment is not allowed within a namespace block" if scope[:module]

              # Add a default constraint for :controller path segments that matches namespaced
              # controllers with default routes like :controller/:action/:id(.:format), e.g:
              # GET /admin/products/show/1
              # => { controller: 'admin/products', action: 'show', id: '1' }
              @options[:controller] ||= /.+?/
            end

            @options.merge!(default_controller_and_action)
          end