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From: Nicolas Richard <theonewiththeevillook@yahoo.fr>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Arbitrary folding in emacs
Date: Sun, 30 Mar 2014 12:19:38 +0200	[thread overview]
Message-ID: <8738i09ef9.fsf@yahoo.fr> (raw)
In-Reply-To: <jwvtxaix8o1.fsf-monnier+gmane.emacs.help@gnu.org> (Stefan Monnier's message of "Fri, 28 Mar 2014 18:32:47 -0400")

Stefan Monnier <monnier@iro.umontreal.ca> writes:
> But obviously, it'll be a bit crude (e.g. no commands to unhide, tho you
> might be able to use reveal-mode for that).

Here's a "toggling" version :
(defun my-toggle-hide-region (beg end)
  "Hide region. Unless it contains already hidden text, then show it."
  (interactive "r")
  (let ((has-invisible-p
         (catch 'invisible
           (dolist (ov (overlays-in beg end))
             (when (eq 'outline (overlay-get ov 'invisible))
               (throw 'invisible t))))))
    (outline-flag-region beg end (not has-invisible-p))))

-- 
Nico.



  reply	other threads:[~2014-03-30 10:19 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-28  9:06 Arbitrary folding in emacs C K Kashyap
2014-03-28  9:12 ` Eli Zaretskii
2014-03-28  9:25   ` C K Kashyap
2014-03-28  9:37     ` Eli Zaretskii
2014-03-28  9:50       ` C K Kashyap
2014-03-28 11:45         ` Tim Visher
2014-03-28 12:26           ` Nicolas Richard
2014-03-28 22:32             ` Stefan Monnier
2014-03-30 10:19               ` Nicolas Richard [this message]
2014-03-28 14:17           ` Tassilo Horn
2014-03-28 14:28             ` Jai Dayal
2014-03-29 20:29               ` Jarek Czekalski
2014-03-29  6:42           ` Marcin Borkowski
2014-03-31 15:15             ` Tim Visher
2014-03-28 20:00 ` Thien-Thi Nguyen
2014-03-28 19:58   ` Jai Dayal
2014-03-31  8:02 ` Andreas Röhler

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