Regular Expressions 101

1st Alternative((?:<br\s*\/?>)+)

Group 1((?:<br\s*\/?>)+)

Non-Capturing Group(?:<br\s*\/?>)+

+repeats the group contents below at least once:

<brthe literal text <br (case sensitive)

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

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

2nd Alternative(?<!<br)\s+(?!\/?>)

Negative Lookbehind(?<!<br)

<brthe literal text <br (case sensitive)

\s+any whitespace character, repeated at least once

Negative Lookahead(?!\/?>)

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

((?:<br\s*\/?>)+)|(?<!<br)\s+(?!\/?>)

New

<strong>Blabla1</strong> Blaabla2<br /> Blaabla3 <strong>Blaabla4</strong> Blaabla5 Blaabla6<br /><br /> Blaabla7 <span style='color:#B22222;'>Blaabla8</span> Blaabla9

Regular Expression

Extraction