Non-Capturing Group(?:<a\s+(?:[^>]*)?href="|(?!^)\G) 1st Alternative<a\s+(?:[^>]*)?href=" <athe literal text <a (case insensitive) \s+any whitespace character, repeated at least once
Non-Capturing Group(?:[^>]*)? ?repeats the group contents below at most once:
Negated Character Class[^>]* *matches any number of characters outside the set below:
>the literal > (6210 / 768 / 3E16)
href="the literal text href=" (case insensitive) \Gstart of current search
\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match
.*?any character (except for line terminators), repeated any number of times
?matches at most one character from the set below:
A-Zone character from A (6510) to Z (9010) (case insensitive)
\d{5}a digit, repeated exactly 5 times
.*?any character (except for line terminators), repeated any number of times
"the literal " (3410 / 428 / 2216)
g modifier: global. Finds all matches instead of stopping after the first
i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters