def path_mapped(script_name, *args)
    return cleanup_paths("/#{script_name}/#{@locations[:root]}") if args.empty?
    a = replace_symbols(script_name, *args)
    cleanup_paths("/#{script_name}/#{@locations[:root]}/#{a.join('/')}")
  end
def path_mapped(script_name, *args)
    return cleanup_paths("/#{script_name}/#{@locations[:root]}") if args.empty?
    a = replace_symbols(script_name, *args)
    cleanup_paths("/#{script_name}/#{@locations[:root]}/#{a.join('/')}")
  end
Returns all paths mapped by root path in prefix.