Re: Narrowing to non-adjacent regions

[Andreas Röhler]

Am Mittwoch, 30. Januar 2008 20:42 schrieb davidjneu@gmail.com:
> Hi,
>
> Hi, I'm wondering if it's possible to narrow a buffer so that multiple
> non-adjacent
> regions are displayed.
>
> The code snippet below doesn't work, but conveys what I'm looking for.
>
> Many thanks!
>
> Cheers,
> David
>
> (defun narrow-two ()
>   (interactive "*")
>   (widen)
>   (goto-char (point-min))
>   (let ((start-1 (point))
>       (end-1 (progn (next-line 5) (point)))
>       (start-2 (progn (next-line 7) (point)))
>       (end-2 (progn (end-of-buffer) (point))))
>   (narrow-to-region start-1 end-1)
>   (narrow-to-region start-2 end-2)))
> _______________________________________________

As GNU Emacs enables only a single region at time
AFAIK, you'll need another tool to do this.

Already exists block.el, look, if it is suitable.

Once several blocks are known, set the remaining chars
to invisible. Maybe block.el delivers that already.

HTH

Andreas Röhler