Regular Expressions 101

Explanation

Pro

Non-Capturing Group(?:http:\/\/domain.com)

http:the literal text http: (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

domainthe literal text domain (case sensitive)

.any character (except for line terminators)

comthe literal text com (case sensitive)

Group 1(\S*\.(?:png|jpg|gif|js|css))

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

1st Alternativepng

pngthe literal text png (case sensitive)

2nd Alternativejpg

jpgthe literal text jpg (case sensitive)

3rd Alternativegif

gifthe literal text gif (case sensitive)

4th Alternativejs

jsthe literal text js (case sensitive)

5th Alternativecss

cssthe literal text css (case sensitive)

\ban ASCII word boundary

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?:http:\/\/domain.com)(\S*\.(?:png|jpg|gif|js|css))\b

New

Some content including image tags <img src="http://domain.com/image.png" /> and image urls http://domain.com/image.png and javascript links <script src="http://domain.com/funtimes.js"></script> and js urls http://domain.com/funtimes.js but not this image http://notthisdomain.com/nope.png

Substitution

http://cdndomain.com\1

Some content including image tags <img src="http://domain.com/image.png" /> and image urls http://domain.com/image.png and javascript links <script src="http://domain.com/funtimes.js"></script> and js urls http://domain.com/funtimes.js but not this image http://notthisdomain.com/nope.png