}

// isOWS reports whether b is an optional whitespace byte, as defined
// by RFC 7230 section 3.2.3.
func isOWS(b byte) bool { return b == ' ' || b == '\t' }

// trimOWS returns x with all optional whitespace removes from the
// beginning and end.
func trimOWS(x string) string {
	// TODO: consider using strings.Trim(x, " \t") instead,
	// if and when it's fast enough. See issue 10292.