Regular Expressions 101

httpthe literal text http (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

://the literal text ://

Negative Lookahead(?![^" <>]*(?:jpg|png|gif))

Negated Character Class[^" <>]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Non-Capturing Group(?:jpg|png|gif)

1st Alternativejpg

jpgthe literal text jpg (case sensitive)

2nd Alternativepng

pngthe literal text png (case sensitive)

3rd Alternativegif

gifthe literal text gif (case sensitive)

Negated Character Class[^" <>]+

+matches at least one character outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

the literal (32₁₀ / 40₈ / 20₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

https?://(?![^" <>]*(?:jpg|png|gif))[^" <>]+

New

http://www.ex1.ir/new-img/im.png
http://www.ex2.ir/d1/d2 
http://www.ex3.ir/1.gif