8the literal 8 (5610 / 708 / 3816)
\.the literal . (4610 / 568 / 2E16)
0-9one character from 0 (4810) to 9 (5710)
\.the literal . (4610 / 568 / 2E16)
0the literal 0 (4810 / 608 / 3016)
1the literal 1 (4910 / 618 / 3116)
-the literal - (4510 / 558 / 2D16)
\d{8}a Unicode decimal digit, repeated exactly 8 times