http://foo.com/blah_blah
http://foo.com/blah_blah/
http://foo.com/blah_blah_(wikipedia)
http://foo.com/blah_blah_(wikipedia)_(again)
http://www.example.com/wpstyle/?p=364
https://www.example.com/foo/?bar=baz&inga=42&quux
http://userid:password@example.com:8080
http://userid:password@example.com:8080/
http://userid@example.com
http://userid@example.com/
http://userid@example.com:8080
http://userid@example.com:8080/
http://userid:password@example.com
http://userid:password@example.com/
http://foo.com/blah_(wikipedia)#cite-1
http://foo.com/blah_(wikipedia)_blah#cite-1
http://foo.com/(something)?after=parens
http://code.google.com/events/#&product=browser
http://foo.bar/?q=Test%20URL-encoded%20stuff
http://1337.net
http://a.b-c.de