Regular Expressions 101

src="the literal text src=" (case insensitive)

Group 1(http:\/\/|https:\/\/)

1st Alternativehttp:\/\/

http:the literal text http: (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternativehttps:\/\/

https:the literal text https: (case insensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2(\S*\.(gif|png|jpg|jpeg))

\S*any non-whitespace character, repeated any number of times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 3(gif|png|jpg|jpeg)

1st Alternativegif

gifthe literal text gif (case insensitive)

2nd Alternativepng

pngthe literal text png (case insensitive)

3rd Alternativejpg

jpgthe literal text jpg (case insensitive)

4th Alternativejpeg

jpegthe literal text jpeg (case insensitive)

"the literal " (34₁₀ / 42₈ / 22₁₆)

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

src="(http:\/\/|https:\/\/)(\S*\.(gif|png|jpg|jpeg))"

New

<p><img src="http://cdn03.XXXXXX.de/upload2/Q/m/QmOJ0Li2UbIl143705410063P4391.png"></p>
<p><img src="http://cdn02.XXXXXX.de/upload2/i/Q/iQtReUOqw1Jf143705410914P4391.gif"></p>
<p><img src="http://cdn03.XXXXXX.de/upload2/5/D/5Dse28yAh160143705411823P4391.jpg"></p>

Regular Expression

Substitution