--- backtrace

    Хåȥ졼֤ޤ

    * "#{sourcefile}:#{sourceline}:in `#{method}'"

      (᥽åξ)

    * "#{sourcefile}:#{sourceline}"

      (ȥåץ٥ξ)

    Ȥ(ǥեȤǤ) String Ǥ

