I was looking over this part in the config and wondered if there is a way to use a wildcard such as banner* so it works for banners also or other plurals.
Code:
// regular expression to ban useless external links in index
define('BANNED','^ad\.|banner|banners|doubleclick|links|forum|affiliates');
Not sure I understand how ^ad\. is being used either in this.
The ^ represents what?
The \. represents what?