From: Carsten Dominik <dominik@uva.nl>
To: Carsten Dominik <dominik@uva.nl>
Cc: emacs org-mode mailing list <emacs-orgmode@gnu.org>
Subject: Re: deleting hidden parts of sparse trees
Date: Mon, 7 Jul 2008 09:48:37 -0700 [thread overview]
Message-ID: <F11294FE-384E-4E54-AF75-0C5E6D15696F@uva.nl> (raw)
In-Reply-To: <4D539FB1-44C6-4E19-B7A4-C147ED623C0A@uva.nl>
On Jul 7, 2008, at 9:44 AM, Carsten Dominik wrote:
>
> (defun outline-delete-invisible ()
> "Delete all text covert by overlays with `invisible' property
> `outline'."
> (interactive)
> (let ((ovls (overlays-in (point-min) (point-max))) o)
> (while (setq o (pop ovls))
> (and (eq (overlay-get o 'invisible) 'outline))
> (delete-region (overlay-start o) (overlay-end o)))))
>
>
> Do I need to mention that this will be a dangerous operation, deleting
> lots of invisible text? You might find out only ater it is too late
> to recover.
Even much more dangerous then I thought, the command shown above
actually deletes anything covered by overlays, not only outline
overlays. Just one misplaced parenthesis......
Here is the corrected version.
(defun outline-delete-invisible ()
"Delete all text covered by overlays with `invisible' property
`outline'."
(interactive)
(let ((ovls (overlays-in (point-min) (point-max))) o)
(while (setq o (pop ovls))
(and (eq (overlay-get o 'invisible) 'outline)
(delete-region (overlay-start o) (overlay-end o))))))
next prev parent reply other threads:[~2008-07-07 16:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-07 8:55 deleting hidden parts of sparse trees Dan Davison
2008-07-07 16:44 ` Carsten Dominik
2008-07-07 16:48 ` Carsten Dominik [this message]
2008-07-08 17:20 ` Dan Davison
[not found] ` <2E800125-C30C-477E-AB79-01571C4C0D4D@uva.nl>
2008-07-08 19:04 ` Dan Davison
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