Regular Expressions 101

Pro

^start of line

Group Id(?<Id>\d+)

\d+a Unicode decimal digit, repeated at least once

- the literal text -

Group Agent(?<Agent>.*?)

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

Non-Capturing Group(?:$(?<Registry>[^()]*)$)?

?repeats the group contents below at most once:

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group Registry(?<Registry>[^()]*)

Negated Character Class[^()]*

*matches any number of characters outside the set below:

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\W*any character that is not a Unicode word character, repeated any number of times

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group Date(?<Date>\d{2}/\d{2}/\d{4})

\d{2}a Unicode decimal digit, repeated exactly 2 times

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d{2}a Unicode decimal digit, repeated exactly 2 times

/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

$end of line

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

^(?<Id>\d+) - (?<Agent>.*?)(?:\((?<Registry>[^()]*)\))?\W*\((?<Date>\d{2}/\d{2}/\d{4})\)$

New

121971 - my text(S 8, H M 42670). (27/06/1974)
2 - Lorem Ipsum. (19/12/2022)

121971 - my text(S 8, H M 42670). (27/06/1974)
2 - Lorem Ipsum. (19/12/2022)