module Roda::RodaPlugins::StaticPathInfo::RequestMethods

def run(_)

a URL mapper.
before dispatching to another rack app, so the app still works as
Update SCRIPT_NAME/PATH_INFO based on the current remaining_path 
def run(_)
  e = @env
  path = @remaining_path
  begin
    script_name = e[SCRIPT_NAME]
    path_info = e[PATH_INFO]
    e[SCRIPT_NAME] += path_info.chomp(path)
    e[PATH_INFO] = path
    super
  ensure
    e[SCRIPT_NAME] = script_name
    e[PATH_INFO] = path_info
  end
end