//TODO: FIDIV (R11)                     // 41de33
	//TODO: FIDIVL (BX)                     // da33
	//TODO: FIDIVL (R11)                    // 41da33
	//TODO: FIDIVR (BX)                     // de3b
	//TODO: FIDIVR (R11)                    // 41de3b
	//TODO: FIDIVRL (BX)                    // da3b
	//TODO: FIDIVRL (R11)                   // 41da3b
	//TODO: FILD (BX)                       // df03

	if name == "." {
		return dotFile
	}

	dir, elem, _ := split(name)
	files := r.fileList
	i := sort.Search(len(files), func(i int) bool {
		idir, ielem, _ := split(files[i].name)
		return idir > dir || idir == dir && ielem >= elem
	})
	if i < len(files) {
		fname := files[i].name
		if fname == name || len(fname) == len(name)+1 && fname[len(name)] == '/' && fname[:len(name)] == name {

// deliver a final empty token (which is different from a nil token).
// One could achieve the same behavior with a custom error value but
// providing one here is tidier.
// See the emptyFinalToken example for a use of this value.
var ErrFinalToken = errors.New("final token")

// Scan advances the [Scanner] to the next token, which will then be