Re: make emacs ask to save modified non-file buffers

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

Xah wrote:
> when i create a new buffer, how can i make emacs ask to save if it is
> modified?
> 
> for example, i have this function:
> 
> (defun new-empty-buffer ()
>   "Opens a new empty buffer."
>   (interactive)
>   (let ((buf (generate-new-buffer "untitled")))
>     (switch-to-buffer buf)
>     (funcall (and initial-major-mode))
>     (setq buffer-offer-save t)
> ))
> 
> after calling, it'll create a new buffer. Then, if user edit the
> buffer, then close it (using either kill-buffer or kill-this-buffer),
> then i want emacs to ask whether to save it if the buffer has been
> modified.
> 
> according to the manual, the var buffer-offer-save will do it only if
> the buffer is a visiting buffer. Then the manual talks about save-some-
> buffers second argument but i don't see how this fits together, since
> i don't actually want to call save-some-buffers.


(info "(elisp) Killing Buffers")