Regular Expressions 101

Explanation
Pro

Negative Lookahead(?!&amp|&lt)

1st Alternative&amp

&ampthe literal text &amp (case sensitive)

2nd Alternative&lt

&ltthe literal text &lt (case sensitive)

&the literal & (38₁₀ / 46₈ / 26₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

(?!&amp|&lt)&

New

<a href="http://www.testassociation.com/test.html?ab=5&cd=5&ab=c" target="_blank">Customer Association</a>&amp;

<a href="http://www.testassociation.com/test.html?ab=5&cd=5&ab=c" target="_blank">Customer Association</a>&amp;