^start of line
Group 1(\d{4}-\d{2}-\d{2}\s*(?:\d{2}:){2}\d{2}) \d{4}a digit, repeated exactly 4 times
-the literal - (4510 / 558 / 2D16)
\d{2}a digit, repeated exactly 2 times
-the literal - (4510 / 558 / 2D16)
\d{2}a digit, repeated exactly 2 times
\s*any whitespace character, repeated any number of times
Non-Capturing Group(?:\d{2}:){2} {2}repeats the group contents below exactly 2 times:
\d{2}a digit, repeated exactly 2 times
:the literal : (5810 / 728 / 3A16)
\d{2}a digit, repeated exactly 2 times
\s+any whitespace character, repeated at least once
\|the literal | (12410 / 1748 / 7C16)
\s+any whitespace character, repeated at least once
\S+any non-whitespace character, repeated at least once
\s+any whitespace character, repeated at least once
\|the literal | (12410 / 1748 / 7C16)
\s+any whitespace character, repeated at least once
\[the literal [ (9110 / 1338 / 5B16)
Negated Character Class[^]]* *matches any number of characters outside the set below:
]the literal ] (9310 / 1358 / 5D16)
\]the literal ] (9310 / 1358 / 5D16)
.*?any character (except for line terminators), repeated any number of times
?repeats the group contents below at most once:
bodythe literal text body (case sensitive) .*any character (except for line terminators), repeated any number of times
$end of line
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