Regular Expressions 101

^start of line

Numer właściciela:the literal text Numer właściciela: (case sensitive)

\h*any horizontal whitespace character, repeated any number of times

Group owner_id(?<owner_id>\S+(?:\h\S+)*)

\S+any non-whitespace character, repeated at least once

Non-Capturing Group(?:\h\S+)*

*repeats the group contents below any number of times:

\hany horizontal whitespace character

\S+any non-whitespace character, repeated at least once

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

^Numer właściciela:\h*(?<owner_id>\S+(?:\h\S+)*)

New

Numer właściciela: NOWAKOWSKA                                              01-234 Warsaw
Numer właściciela: NOWAK_S6_2
Numer właściciela: KOWALSKA_S6_                                            01-234 Warsaw
Numer właściciela: NOWACKI S6_                                             01-234 Warsaw

Regular Expression

Substitution