Regular Expressions 101

Group 1(.+$)

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

$end of line

\Ra newline sequence

Anzahl:the literal text Anzahl: (case sensitive)

\hany horizontal whitespace character

Group 2(\d+)

\d+a digit, repeated at least once

\R?optionally matches a newline sequence

Non-Capturing Group(?:\h+davon\R(?:\h+(\d+)\h(.+$)\R?))?

?repeats the group contents below at most once:

\h+any horizontal whitespace character, repeated at least once

davonthe literal text davon (case sensitive)

\Ra newline sequence

Non-Capturing Group(?:\h+(\d+)\h(.+$)\R?)

\h+any horizontal whitespace character, repeated at least once

Group 3(\d+)

\d+a digit, repeated at least once

\hany horizontal whitespace character

Group 4(.+$)

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

$end of line

\R?optionally matches a newline sequence

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

(.+$)\RAnzahl:\h(\d+)\R?(?:\h+davon\R(?:\h+(\d+)\h(.+$)\R?))?

Test String
New

Installierte Busteilnehmer
Anzahl: 1723
automatische Melder
Anzahl: 1490  davon
                    43 Thermodiff. Melder
                    1447 O2T-Melder
nicht automatische Melder
Anzahl: 144
Koppler
Anzahl: 45  davon
                    15 Funkkoppler (81 Funksockel)
Signalgeber
Anzahl: 857  davon
                    8 Sprachalarmierung
                    793 Sprachalarmierung integriert im Melder
                    36 optisch/Sprache
                    20 optisch/Sprache integriert im Melder

Regular Expression

Test StringNew

Test String
New