Regular Expressions 101

Pro

Group 1(^((feature|bugfix)\/[A-Z]+-\d+)|^(release\/(R2\d)(-)\d{2}.\d.\d))

1st Alternative^((feature|bugfix)\/[A-Z]+-\d+)

^start of line

Group 2((feature|bugfix)\/[A-Z]+-\d+)

Group 3(feature|bugfix)

1st Alternativefeature

featurethe literal text feature (case sensitive)

2nd Alternativebugfix

bugfixthe literal text bugfix (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[A-Z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

2nd Alternative^(release\/(R2\d)(-)\d{2}.\d.\d)

^start of line

Group 4(release\/(R2\d)(-)\d{2}.\d.\d)

releasethe literal text release (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 5(R2\d)

R2the literal text R2 (case sensitive)

\da digit

Group 6(-)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d{2}a digit, repeated exactly 2 times

.any character (except for line terminators)

\da digit

.any character (except for line terminators)

\da digit

Group 7([a-z-]+)?

?repeats the group contents below at most once:

Character Class[a-z-]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

(^((feature|bugfix)\/[A-Z]+-\d+)|^(release\/(R2\d)(-)\d{2}.\d.\d))([a-z-]+)?

New

feature/JIRA-123
bugfix/JIRA-123-fix

release/R21-07.3.0
release/R21-07.3.0-fix