Regular Expressions 101

Non-Capturing Group(?:[\r\n]+((\d{2}).(\d{2}).(\d{4}) (\d{2}):(\d{2}):(\d{2})))?

?repeats the group contents below at most once:

Character Class[\r\n]+

+matches at least one character from the set below:

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

Group 1((\d{2}).(\d{2}).(\d{4}) (\d{2}):(\d{2}):(\d{2}))

Group 2(\d{2})

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

.any character (except for line terminators)

Group 3(\d{2})

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

.any character (except for line terminators)

Group 4(\d{4})

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

the literal (32₁₀ / 40₈ / 20₁₆)

Group 5(\d{2})

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 6(\d{2})

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 7(\d{2})

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

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

Group 8([;]{1})

Character Class[;]{1}

{1}matches one character from the set below:

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

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.

Search reference

Regular Expression

(?:[\r\n]+((\d{2}).(\d{2}).(\d{4}) (\d{2}):(\d{2}):(\d{2})))?;([;]{1})

Test String
New

23.05.2022 05:59:00;1;;;;;;;;;
23.05.2022 05:59:00;;2;;;;;;;;
23.05.2022 05:59:00;;;3;;;;;;;
23.05.2022 05:59:00;;;;4;;;;;;
23.05.2022 05:59:00;;;;;5;;;;;
23.05.2022 05:59:00;;;;;;6;;;;
23.05.2022 05:59:00;;;;;;;7;;;
23.05.2022 05:59:00;;;;;;;;8;;
23.05.2022 05:59:00;;;;;;;;;9;
23.05.2022 05:59:00;;;;;;;;;;10
23.05.2022 06:59:00;1;;;;;;;;;
23.05.2022 06:59:00;;2;;;;;;;;
23.05.2022 06:59:00;;;3;;;;;;;
23.05.2022 06:59:00;;;;4;;;;;;
23.05.2022 06:59:00;;;;;5;;;;;
23.05.2022 06:59:00;;;;;;6;;;;
23.05.2022 06:59:00;;;;;;;7;;;
23.05.2022 06:59:00;;;;;;;;8;;
23.05.2022 06:59:00;;;;;;;;;9;
23.05.2022 06:59:00;;;;;;;;;;10