I'm playing around with Scripting Bridge trying to script Terminal.app. I'm running into issues with adding a new tab to a window, and was hoping someone could point me in the right direction. Consider this gist: https://gist.github.com/1005066
The only information I could find that was remotely similar was doing something similar with Safari here: http://stackoverflow.com/questions/2912161/new-tab-in-safari-window-from-coc... I tried converting that over to MacRuby, and I get the same error as when I try my gist above.
RuntimeError: NSInvalidArgumentException: *** -[SBElementArray addObject:]: can't add an object that already exists.
Hopefully I'm just doing something silly?
From what I've been able to find on the Web, the terminal app doesn't allow you to create a new tab using AppleScript (directly). Instead what you have to do is address the System Events application and use it to issue a "cmd-T" command.
I would also report a bug against Terminal.app on bugreport.apple.com. Scott