Regular expression to validate URLs

gistfile1.txt

Regular expression to validate URLs

^https?\:\/\/[a-z0-9\-]+(\.[a-z0-9\-]+)+(\:\d{1,5})?(/|/[a-z0-9\_\-\/\?\=\.]*)?$

VALID

http://chrischerry.name
https://chrischerry.name
http://chrischerry.name/
http://chrischerry.name:1234/
http://chrischerry.name:1234/somefile.rb
http://chrischerry.name:1234/somefile.rb?things=stuff

INVALID

http://onepart
http://doubledot..com
ftp://wrongprotocol.com