Regular Expressions 101

Pro

aaathe literal text aaa (case sensitive)

Positive Lookahead(?=[^<]*<\/?br\s*\/?>)

Negated Character Class[^<]*

*matches any number of characters outside the set below:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

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

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)

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.

26 tokens

aaa(?=[^<]*<\/?br\s*\/?>)

New

<FONT color='red'>aaa-1/2</br>bbb-1/3</br>aaa-1/20</FONT>

<FONT color='red'>aaa-1/2</br>bbb-1/3</br>aaa-1/20</FONT>