Regular Expressions 101

Pro

Non-Capturing Group(?:(?:Mike: )((?!.*_keyword).*))

Non-Capturing Group(?:Mike: )

Mike: the literal text Mike: (case sensitive)

Group 1((?!.*_keyword).*)

Negative Lookahead(?!.*_keyword)

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

_keywordthe literal text _keyword (case sensitive)

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

Character Class[\s\S]*

*matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

Non-Capturing Group(?:(?:Sonya: )((?!.*_keyword).*))

Non-Capturing Group(?:Sonya: )

Sonya: the literal text Sonya: (case sensitive)

Group 2((?!.*_keyword).*)

Negative Lookahead(?!.*_keyword)

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

_keywordthe literal text _keyword (case sensitive)

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

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

(?:(?:Mike: )((?!.*_keyword).*))[\s\S]*(?:(?:Sonya: )((?!.*_keyword).*))

New

..some_text_and_linebreaks..
    Mike: Using some_1eyword
..some_text_and_linebreaks..
    Sonya: Using another_1eyword
..some_text_and_linebreaks..