Group 1(warning|error|note|help) warningthe literal text warning (case sensitive) errorthe literal text error (case sensitive) notethe literal text note (case sensitive) helpthe literal text help (case sensitive) Non-Capturing Group(?:\[(.*)\])? ?repeats the group contents below at most once:
\[the literal [ (9110 / 1338 / 5B16)
.*any character (except for line terminators), repeated any number of times
\]the literal ] (9310 / 1358 / 5D16)
\:the literal : (5810 / 728 / 3A16)
the literal (3210 / 408 / 2016)
.*any character (except for line terminators), repeated any number of times
\s+any whitespace character, repeated at least once
.*any character (except for line terminators), repeated any number of times
:the literal : (5810 / 728 / 3A16)
\d+a digit, repeated at least once
:the literal : (5810 / 728 / 3A16)
\d+a digit, repeated at least once
\na line-feed (newline) character (ASCII 10)
Non-Capturing Group(?:((?:.+\n)+)\.+)? ?repeats the group contents below at most once:
Non-Capturing Group(?:.+\n)+ +repeats the group contents below at least once:
.+any character (except for line terminators), repeated at least once
\na line-feed (newline) character (ASCII 10)
\.+the literal . (4610 / 568 / 2E16) , repeated at least once
Non-Capturing Group(?:[\d\s]+\|.*)* *repeats the group contents below any number of times:
+matches at least one character from the set below:
\da digit
\sany whitespace character
\|the literal | (12410 / 1748 / 7C16)
.*any character (except for line terminators), repeated any number of times
?repeats the group contents below at most once:
Non-Capturing Group(?:\s+=.*)+ +repeats the group contents below at least once:
\s+any whitespace character, repeated at least once
=the literal = (6110 / 758 / 3D16)
.*any character (except for line terminators), repeated any number of times
g modifier: global. Finds all matches instead of stopping after the first