Regular Expressions 101

Pro

Group 1(<img\b|(?!^)\G)

1st Alternative<img\b

<imgthe literal text <img (case sensitive)

\ban ASCII word boundary

2nd Alternative(?!^)\G

Negative Lookahead(?!^)

^start of string

\Gstart of current search

Negated Character Class[^>]*?

*?matches any number of characters outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\ban ASCII word boundary

Group 2(src|width|height)

1st Alternativesrc

srcthe literal text src (case sensitive)

2nd Alternativewidth

widththe literal text width (case sensitive)

3rd Alternativeheight

heightthe literal text height (case sensitive)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Group 3(["']?)

Character Class["']?

?matches at most one character from the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Group 4([^>]*?)

Negated Character Class[^>]*?

*?matches any number of characters outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\3the text saved by group 3

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

Regular Expression

(<img\b|(?!^)\G)[^>]*?\b(src|width|height)=(["']?)([^>]*?)\3

New

<img src="myurl.jpg" width="12" height="32">
<img src="myurl.jpg" height="32" width="12">
<img src='myurl.jpg' height='32' width='12'>
<link src="ttt"/>