Regular Expressions 101

Pro

Branch Reset Group(?|(?P<ALL>.*(?P<ID>\bH-\d{4}\b).*)|(?P<ALL>.+))

1st Alternative(?P<ALL>.*(?P<ID>\bH-\d{4}\b).*)

Group ALL(?P<ALL>.*(?P<ID>\bH-\d{4}\b).*)

.*any character (except for line terminators), repeated any number of times

Group ID(?P<ID>\bH-\d{4}\b)

\ban ASCII word boundary

H-the literal text H- (case sensitive)

\d{4}a digit, repeated exactly 4 times

\ban ASCII word boundary

.*any character (except for line terminators), repeated any number of times

2nd Alternative(?P<ALL>.+)

Group ALL(?P<ALL>.+)

.+any character (except for line terminators), repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

25 tokens

(?|(?P<ALL>.*(?P<ID>\bH-\d{4}\b).*)|(?P<ALL>.+))

New

Sample line with H-5722 id
Sample line without id