^start of line
wlan the literal text wlan (case sensitive) \S+any non-whitespace character, repeated at least once
.*any character (except for line terminators), repeated any number of times
Non-Capturing Group(?:\r?\n(?!wlan|.*? dot1 authent ).*)* *repeats the group contents below any number of times:
\r?optionally matches a carriage return (ASCII 13)
\na line-feed (newline) character (ASCII 10)
Negative Lookahead(?!wlan|.*? dot1 authent ) wlanthe literal text wlan (case sensitive) 2nd Alternative.*? dot1 authent .*?any character (except for line terminators), repeated any number of times
dot1 authent the literal text dot1 authent (case sensitive) .*any character (except for line terminators), repeated any number of times
\r?optionally matches a carriage return (ASCII 13)
\na line-feed (newline) character (ASCII 10)
.*?any character (except for line terminators), repeated any number of times
dot1 authent the literal text dot1 authent (case sensitive) .+any character (except for line terminators), repeated at least once
.*any character (except for line terminators), repeated any number of times
Non-Capturing Group(?:\r?\n(?!wlan).*)* *repeats the group contents below any number of times:
\r?optionally matches a carriage return (ASCII 13)
\na line-feed (newline) character (ASCII 10)
Negative Lookahead(?!wlan) wlanthe literal text wlan (case sensitive) .*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