##IF with regexp for notification template

We need to customize the notification template according to the "ticket.category" value that will be something like "IT>Support", "IT>Maintenance", "General>Other", "HR>Something", etc. So, we need to check if "ticket.category" contains "IT" word (something like ##IFticket.category CONTAINS "IT"##), maybe a function with some kind of regexp can do the job.