RE: An elisp question

[Drew Adams]

> > (defun my-test ()
> >   (interactive)
> >   (if (equal (y-or-n-p "Yes or no? ") t)
> 
> (if (y-or-n-p "Yes or no? ")
> 
> will do just fine.
> 
> >       (foo)
> >     (message "hallo")))

Duh. (I didn't try to do more than answer his question.)

Really, the right answer to the OP is to take a look at the manual "Emacs Lisp
Introduction" (aka "An Introduction to Programming in Emacs Lisp") in Info (`C-h
i').