o.simple = true
	return o
}

// HandleFinalSigma specifies whether the special handling of Greek final sigma
// should be enabled. Unicode prescribes handling the Greek final sigma for all
// locales, but standards like IDNA and PRECIS override this default.
func HandleFinalSigma(enable bool) Option {
	if enable {
		return handleFinalSigma
	}
	return ignoreFinalSigma
}