Regular Expressions 101

Pro

(?m)applies the following effective flags to the remainder of the pattern: im

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Group 1(^\^|^ERROR)

1st Alternative^\^

^start of line

\^the literal ^ (94₁₀ / 136₈ / 5E₁₆)

2nd Alternative^ERROR

^start of line

ERRORthe literal text ERROR (case insensitive)

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

Group 2((|\n|\r|\w|\W)?)+

+repeats the group contents below at least once:

Group 3(|\n|\r|\w|\W)?

?repeats the group contents below at most once:

1st Alternative — matches an empty string

2nd Alternative\n

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

3rd Alternative\r

\ra carriage return (ASCII 13)

4th Alternative\w

\wa Unicode word character

5th Alternative\W

\Wany character that is not a Unicode word character

Positive Lookahead(?=ABC>)

ABC>the literal text ABC> (case insensitive)

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Detailed match information will be displayed here automatically.

25 tokens

(?m)(^\^|^ERROR).*((|\n|\r|\w|\W)?)+(?=ABC>)

New


^Test data



This is all just test data 


testing 123
ABC>space "ABC"

ABC>


^Test data



This is all just test data 


testing 123
ABC>space "ABC"

ABC>