{2}matches exactly 2 characters from the set below:
A-Zone character from A (6510) to Z (9010) (case sensitive)
;the literal ; (5910 / 738 / 3B16)
\da Unicode decimal digit
;the literal ; (5910 / 738 / 3B16)
\d{5}a Unicode decimal digit, repeated exactly 5 times
;the literal ; (5910 / 738 / 3B16)
\d{3}a Unicode decimal digit, repeated exactly 3 times
;the literal ; (5910 / 738 / 3B16)
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string