\d+a digit, repeated at least once
?matches at most one character from the set below:
\.the literal . (4610 / 568 / 2E16)
,the literal , (4410 / 548 / 2C16)
\d*a digit, repeated any number of times
?matches at most one character from the set below:
\.the literal . (4610 / 568 / 2E16)
,the literal , (4410 / 548 / 2C16)
\d*a digit, repeated any number of times