class ActionDispatch::Routing::RouteSet::NamedRouteCollection::UrlHelper

def handle_positional_args(controller_options, inner_options, args, result, path_params)
  if args.size > 0
    # take format into account
    if path_params.include?(:format)
      path_params_size = path_params.size - 1
    else
      path_params_size = path_params.size
    end
    if args.size < path_params_size
      path_params -= controller_options.keys
      path_params -= (result[:path_params] || {}).merge(result).keys
    else
      path_params = path_params.dup
    end
    inner_options.each_key do |key|
      path_params.delete(key)
    end
    args.each_with_index do |arg, index|
      param = path_params[index]
      result[param] = arg if param
    end
  end
  result.merge!(inner_options)
end