Using regex to extract URLs from plain text with Perl

Question

How can I use Perl regexps to extract all URLs of a specific domain (with possibly variable subdomains) with a specific extension from plain text? I have tried:

Answer 1

URI::Find is specifically designed to solve this problem. It will find all URIs and then you can filter them. It has a few heuristics to handle things like trailing punctuation.

UPDATE: Recently updated to handle Unicode.