Regular Expressions 101

Explanation
Pro

testthe literal text test (case sensitive)

Negative Lookahead(?!(?:(?!<_strong>).)*<_/strong>)

Non-Capturing Group(?:(?!<_strong>).)*

*repeats the group contents below any number of times:

Negative Lookahead(?!<_strong>)

<_strong>the literal text <_strong> (case sensitive)

.any character (except for line terminators)

<_/strong>the literal text <_/strong> (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.

25 tokens

test(?!(?:(?!<_strong>).)*<_/strong>)

New

This is a test, and test word appears two times

This is a test, and <_strong>test word<_/strong> appears two times

<_strong>$0<_/strong>

This is a test, and test word appears two times

This is a test, and <_strong>test word<_/strong> appears two times