+repeats the group contents below at least once:
+?matches at least one character from the set below:
-the literal - (4510 / 558 / 2D16)
\wany word character
@the literal @ (6410 / 1008 / 4016)
\w+any word character, repeated at least once
\.the literal . (4610 / 568 / 2E16)
\w+any word character, repeated at least once
Non-Capturing Group(?:\s*;\s*)? ?repeats the group contents below at most once:
\s*any whitespace character, repeated any number of times
;the literal ; (5910 / 738 / 3B16)
\s*any whitespace character, repeated any number of times