Wiki style link short code

Hi all,

I’m working on a wp website for someone else. She would like to be able to add links wiki style. That is [[http://www.example.com]] and then the link just works. I’ve been searching for a plug-in that can do that but I can’t find anything.

I’m open to all suggestions for this or similar functionality where one doesn’t have to use the link button in the editor.

Thanks very much in advance for your help, best, Danielle.