\d+a digit, repeated at least once
Non-Capturing Group(?:[.,]\d+)? ?repeats the group contents below at most once:
.the literal . (4610 / 568 / 2E16)
,the literal , (4410 / 548 / 2C16)
\d+a digit, repeated at least once
\h*any horizontal whitespace character, repeated any number of times
xthe literal x (12010 / 1708 / 7816) (case sensitive)
\h*any horizontal whitespace character, repeated any number of times
\d+a digit, repeated at least once
Non-Capturing Group(?:[.,]\d+)? ?repeats the group contents below at most once:
.the literal . (4610 / 568 / 2E16)
,the literal , (4410 / 548 / 2C16)
\d+a digit, repeated at least once
g modifier: global. Finds all matches instead of stopping after the first