Regular Expressions 101

Beginthe literal text Begin (case sensitive)

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

Group 1((Error: (?<message>.*)\n)|(.*\n))*

*repeats the group contents below any number of times:

1st Alternative(Error: (?<message>.*)\n)

Group 2(Error: (?<message>.*)\n)

Error: the literal text Error: (case sensitive)

Group message(?<message>.*)

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

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

2nd Alternative(.*\n)

Group 4(.*\n)

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

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

Endthe literal text End (case sensitive)

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

Begin\n((Error: (?<message>.*)\n)|(.*\n))*End

New

message0
Begin
message1
Error: message2
message3
Error: message4
End
Error: message5