Regular Expressions 101

Explanation

Pro

Positive Lookahead(?=.*\.)

.*any character (except for line terminators), repeated any number of times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 1([^/]+$)

Negated Character Class[^/]+

+matches at least one character outside the set below:

/the literal / (47₁₀ / 57₈ / 2F₁₆)

$end of line

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

Detailed match information will be displayed here automatically.

26 tokens

(?=.*\.)([^/]+$)

New

http://www.example.es/cat1/cat2/some-example_DH148439#.Rh1-js_4
http://www.example.es/cat1/cat2/cat3

$1

http://www.example.es/cat1/cat2/some-example_DH148439#.Rh1-js_4
http://www.example.es/cat1/cat2/cat3