Regular Expressions 101

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case insensitive)

Negative Lookahead(?![^<>]*(([\/\"']|]]|\b)>))

Negated Character Class[^<>]*

*matches any number of characters outside the set below:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Group 1(([\/\"']|]]|\b)>)

Group 2([\/\"']|]]|\b)

1st Alternative[\/\"']

Character Class[\/\"']

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

2nd Alternative]]

]]the literal text ]]

3rd Alternative\b

\ban ASCII word boundary

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Global pattern flags

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

b(?![^<>]*(([\/\"']|]]|\b)>))

New

<span>This is some text where the b can match</span>
<div>Here the &nbsp; can not match a b inside &nbsp;</div>

<div id="bg">Here no match</div>