Regular Expressions 101

Explanation

Pro

^start of line

Group branchType(?<branchType>hotfix|feature|maint)

1st Alternativehotfix

hotfixthe literal text hotfix (case sensitive)

2nd Alternativefeature

featurethe literal text feature (case sensitive)

3rd Alternativemaint

maintthe literal text maint (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group tasMaMi(?<tasMaMi>(?:0|[1-9]\d*)\.(?:0|[1-9]\d*)(?<isTest>-test)?)

Non-Capturing Group(?:0|[1-9]\d*)

1st Alternative0

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

2nd Alternative[1-9]\d*

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\d*a digit, repeated any number of times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:0|[1-9]\d*)

1st Alternative0

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

2nd Alternative[1-9]\d*

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

\d*a digit, repeated any number of times

Group isTest(?<isTest>-test)?

?repeats the group contents below at most once:

-testthe literal text -test (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group branchName(?<branchName>[\w\-\.\d]{1,30})

Character Class[\w\-\.\d]{1,30}

{1,30}matches between 1 and 30 characters from the set below:

\wany word character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\da digit

$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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

27 tokens

Regular Expression

^(?<branchType>hotfix|feature|maint)\/(?<tasMaMi>(?:0|[1-9]\d*)\.(?:0|[1-9]\d*)(?<isTest>-test)?)\/(?<branchName>[\w\-\.\d]{1,30})$

hotfix/8.9/newhotfix
hotfix/maintfix1
feature/newfeture
feature/new-feture_1
hotfix/8.9
hotfix/0.6/preProdFix
PR-12
hotfix/8.9/this_branch_name-is_way_To_long
hotfix/8.11/test-8.12-KB-flow
hotfix/8.12-test/test-8.12-KB-flow

Extraction

hotfix/8.9/newhotfix
hotfix/maintfix1
feature/newfeture
feature/new-feture_1
hotfix/8.9
hotfix/0.6/preProdFix
PR-12
hotfix/8.9/this_branch_name-is_way_To_long
hotfix/8.11/test-8.12-KB-flow
hotfix/8.12-test/test-8.12-KB-flow