Regular Expressions 101

Pro

^start of line

Group 1((?:(?!-my-word).|-my-word(?=.*-my-word))+)

Non-Capturing Group(?:(?!-my-word).|-my-word(?=.*-my-word))+

+repeats the group contents below at least once:

1st Alternative(?!-my-word).

Negative Lookahead(?!-my-word)

-my-wordthe literal text -my-word (case sensitive)

.any Unicode character (except for line terminators)

2nd Alternative-my-word(?=.*-my-word)

-my-wordthe literal text -my-word (case sensitive)

Positive Lookahead(?=.*-my-word)

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

-my-wordthe literal text -my-word (case sensitive)

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

^((?:(?!-my-word).|-my-word(?=.*-my-word))+)

New

mylaptop-my-word
mylaptop
mylaptop-my-word-hello-my-word

mylaptop-my-word
mylaptop
mylaptop-my-word-hello-my-word