ColdForged,
I had assumed it was using ereg, so I did my patterns according to that. I also wanted to tailor it so that the regex would only work on strings with http:// and the keyword in it, thus restricting it to URI instances. That seems to be the most reliable way to avoid false-positives that I’ve found.
I’ll try to re-work it using preg_match syntax instead.
davidchait,
I’m constantly talking to my hosting to be sure that the regex’s I’m using aren’t causing any load issues and I’m told they don’t notice anything. I also want to avoid using 3rd party plugins if the buil-in functionality of WordPress will work just fine.
Thanks for the input so far guys.