Dialog prompts

[Yil]

3/4 of the way there. I tried 1502 out and \] doesn't close the dialog prompt field text but it does show up as \] instead of just ]... I suppose that means \] would actually be hard to enter without using \ as a proper escape and processing \\ as \ but I wouldn't worry too much about it. It's far more useful to have the ability to use ]'s than to worry about the rare, if ever, used \] case.