Reply To: Shortest GREP Pattern to address URLs and e-mail addresses?

If you end all with (?=\.?), it won't pick up a sentence ending period after the URL. With your expression such a period is used as part of the URLs. And I'm surprised the dash works in your expressions (or .. does it?). I think that in “[\w%-/]” it'll match anything from '%' to '/' — adding, for example, the plus sign and the comma. Well, perhaps you wanted it to.

(My personal variant is way, way longer — but it includes php's characters ?, =, & and then some more!)