Regular Expressions 101

Explanation

Pro

^start of line

Non-Capturing Group(?:(?!timeScale).)*

*repeats the group contents below any number of times:

Negative Lookahead(?!timeScale)

timeScalethe literal text timeScale (case sensitive)

.any character (except for line terminators)

Group 1(duration: \d+)

duration: the literal text duration: (case sensitive)

\d+a digit, repeated at least once

$end of line

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

^(?:(?!timeScale).)*(duration: \d+)$

New

duration: 2000

duration: timeScale * 3000

duration: 4000 * timeScale

$1 * timeScale

duration: 2000

duration: timeScale * 3000

duration: 4000 * timeScale