At the moment, TerminalRegexPattern is hardcoded into gnome-terminal. This makes it impossible to extend gnome-terminal to understand new types of hyperlink-like patterns. At the moment, popular link types like callto (exists, but is broken), and spotify does not work, and there is no way to fix them without patching gnome-terminal.

Changing TerminalRegexPattern to be a user configurable is one way to fix this.

Practical use: For us irssi-in-a-screen users (and hey, we are a large mass of users), it would be practical to be able to pick up stuff like this by scripts or apps. (And btw, (u)rxvt does this quite simply)

Media links
spotify:track:3AhXZa8sUQht0UEdBJgpGc
wiki:SomePage
google:lmgtf

Bug and request trackers
rt #1234
bz #1234
#1234

Phone numbers variants
555123456
555-123456
(555)123456
(555) 123456
+47 22225555
(+47) 22225555
+4722225555
All the above, prefixed with callto:, skype:, sip:, etc

The list is of course endless, but you've got the idea now, I guess.

br,
Ingvar