}

	e := new(Encoding)
	e.padChar = StdPadding
	copy(e.encode[:], encoder)
	copy(e.decodeMap[:], decodeMapInitialize)

	for i := 0; i < len(encoder); i++ {
		// Note: While we document that the alphabet cannot contain
		// the padding character, we do not enforce it since we do not know
		// if the caller intends to switch the padding from StdPadding later.
		switch {
		case encoder[i] == '\n' || encoder[i] == '\r':