func newEncoding(encoder string) *encoding {
	e := new(encoding)
	e.encode = encoder
	for i := 0; i < len(e.decode); i++ {
		e.decode[i] = 0xff
	}
	for i := 0; i < len(encoder); i++ {
		e.decode[encoder[i]] = byte(i)
	}
	return e
}
func newEncoding(encoder string) *encoding {
	e := new(encoding)
	e.encode = encoder
	for i := 0; i < len(e.decode); i++ {
		e.decode[i] = 0xff
	}
	for i := 0; i < len(encoder); i++ {
		e.decode[encoder[i]] = byte(i)
	}
	return e
}
func newEncoding ( encoder string ) * encoding { e := new ( encoding ) e . encode = encoder for i := 0 ; i < len ( e . decode ) ; i ++ { e . decode [ i ] = 0xff } for i := 0 ; i < len ( encoder ) ; i ++ { e . decode [ encoder [ i ] ] = byte ( i ) } return e }
// newEncoding constructs a new encoding defined by the given alphabet,
// which must be a 32-byte string.
newEncoding constructs a new encoding defined by the given alphabet which must be a 32 - byte string .