.*any character (except for line terminators), repeated any number of times
\Bnot an ASCII word boundary
@the literal @ (6410 / 1008 / 4016)
Positive Lookahead(?=\w{5,32}\b) \w{5,32}any word character, repeated between 5 and 32 times
\ban ASCII word boundary
Character Class[a-zA-Z0-9]+ +matches at least one character from the set below:
a-zone character from a (9710) to z (12210) (case sensitive)
A-Zone character from A (6510) to Z (9010) (case sensitive)
0-9one character from 0 (4810) to 9 (5710)
Non-Capturing Group(?:_[a-zA-Z0-9]+)* *repeats the group contents below any number of times:
_the literal _ (9510 / 1378 / 5F16)
Character Class[a-zA-Z0-9]+ +matches at least one character from the set below:
a-zone character from a (9710) to z (12210) (case sensitive)
A-Zone character from A (6510) to Z (9010) (case sensitive)
0-9one character from 0 (4810) to 9 (5710)
.*any character (except for line terminators), repeated any number of times
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