Regular Expressions 101

^start of line

Negative Lookahead(?!.*?foo)

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

foothe literal text foo (case sensitive)

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

barthe literal text bar (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

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.

25 tokens

Regular Expression

^(?!.*?foo).*bar.*

New

"this is foo baz bar" - should not match
"this is foo baz" - should not match
"this is baz bar" - should match