Regular Expressions 101

Pro

^start of line

Group 1(\*\s+\w+:\s)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\s+a Unicode whitespace character, repeated at least once

\w+a Unicode word character, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\sa Unicode whitespace character

Group 2(.*(?:\n(?!\*\s+\w+:\s).*)*)

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

Non-Capturing Group(?:\n(?!\*\s+\w+:\s).*)*

*repeats the group contents below any number of times:

\na line-feed (newline) character (ASCII 10)

Negative Lookahead(?!\*\s+\w+:\s)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\s+a Unicode whitespace character, repeated at least once

\w+a Unicode word character, repeated at least once

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\sa Unicode whitespace character

.*any Unicode 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

^(\*\s+\w+:\s)(.*(?:\n(?!\*\s+\w+:\s).*)*)

New

* Major: This is a **Major** change
* Minnor: This is is a minor change with a typo
* Patch: This
is a multiline
  patch

* Major: This is a **Major** change
* Minnor: This is is a minor change with a typo
* Patch: This
is a multiline
  patch