src:the literal text src: (case sensitive) \s*a Unicode whitespace character, repeated any number of times
Group 1(\d{1,3}(?:\.\d{1,3}){3}) \d{1,3}a Unicode decimal digit, repeated between 1 and 3 times
Non-Capturing Group(?:\.\d{1,3}){3} {3}repeats the group contents below exactly 3 times:
\.the literal . (4610 / 568 / 2E16)
\d{1,3}a Unicode decimal digit, repeated between 1 and 3 times
\na line-feed (newline) character (ASCII 10)
dst:the literal text dst: (case sensitive) \s*a Unicode whitespace character, repeated any number of times
Group 2(\d{1,3}(?:\.\d{1,3}){3}) \d{1,3}a Unicode decimal digit, repeated between 1 and 3 times
Non-Capturing Group(?:\.\d{1,3}){3} {3}repeats the group contents below exactly 3 times:
\.the literal . (4610 / 568 / 2E16)
\d{1,3}a Unicode decimal digit, repeated between 1 and 3 times
Non-Capturing Group(?:\n(?!severity).+)*? *?repeats the group contents below any number of times:
\na line-feed (newline) character (ASCII 10)
Negative Lookahead(?!severity) severitythe literal text severity (case sensitive) .+any Unicode character (except for line terminators), repeated at least once
\na line-feed (newline) character (ASCII 10)
severity:the literal text severity: (case sensitive) \s*a Unicode whitespace character, repeated any number of times
.+any Unicode character (except for line terminators), repeated at least once
g modifier: global. Finds all matches instead of stopping after the first