regex101: Python Match Workspace

Pro

^start of line

\*{4,}the literal * (42₁₀ / 52₈ / 2A₁₆) , repeated at least 4 times

Group 1((?:\r?\n(?!\s*$|\*{4}).+)*)

Non-Capturing Group(?:\r?\n(?!\s*$|\*{4}).+)*

*repeats the group contents below any number of times:

\r?optionally matches a carriage return (ASCII 13)

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

Negative Lookahead(?!\s*$|\*{4})

1st Alternative\s*$

\s*a Unicode whitespace character, repeated any number of times

$end of line

2nd Alternative\*{4}

\*{4}the literal * (42₁₀ / 52₈ / 2A₁₆) , repeated exactly 4 times

.+any Unicode character (except for line terminators), repeated at least once

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

25 tokens

Regular Expression

^\*{4,}((?:\r?\n(?!\s*$|\*{4}).+)*)

New

Lorem ipsum dolor sit amet, consectetur adipiscing elit.

****
Sed id placerat magna.

*******
Pellentesque in ex ac urna tincidunt tristique. 
*******
Pellentesque in ex ac urna tincidunt tristique. 
Etiam dapibus faucibus gravida.


*******
Pellentesque in ex ac urna tincidunt tristique. 
test

Substitution

Lorem ipsum dolor sit amet, consectetur adipiscing elit.

****
Sed id placerat magna.

*******
Pellentesque in ex ac urna tincidunt tristique. 
*******
Pellentesque in ex ac urna tincidunt tristique. 
Etiam dapibus faucibus gravida.


*******
Pellentesque in ex ac urna tincidunt tristique. 
test