Are string operators supported?

[gid]

Is it possible for me to access the Nth character of a macro?

e.g. an operator called "foobar" such that foobar(TRIGGER.NAME,7) would return the 7th character of the TRIGGER.NAME

Thanks!

[gid]

Well, apparently such operators are not supported.

What I need is to identify the trigger from within the action. The ID is not suitable, it's db-generated. The Name and Description are only helpful if I can stick the id I want into one of them and then extract it from them with that operator I was asking about, but that seems unlikely. Using the Name as a whole is not good because it contains non-latin text and I want to send this parameter back to the host and into a shell script that will take some action.

Can you think of another way??? Can I define my own parameter inside the trigger? I really doubt it.