From: "Kévin Le Gouguec" <kevin.legouguec@gmail.com>
To: Visuwesh <visuweshm@gmail.com>
Cc: Stefan Monnier <monnier@iro.umontreal.ca>,
Daniel Mendler <mail@daniel-mendler.de>,
emacs-devel@gnu.org, Ihor Radchenko <yantar92@posteo.net>
Subject: Re: [elpa] externals/org-modern 0043e584db: Use `display ""` for hiding instead of `invisible t`
Date: Thu, 01 Dec 2022 08:30:28 +0100 [thread overview]
Message-ID: <87sfhzoa23.fsf@gmail.com> (raw)
In-Reply-To: <87359zamcg.fsf@gmail.com> (Visuwesh's message of "Thu, 01 Dec 2022 07:58:47 +0530")
Visuwesh <visuweshm@gmail.com> writes:
> [புதன் நவம்பர் 30, 2022] Stefan Monnier wrote:
>
>>> Unfortunately it seems that the invisible text property has been taken by
>>> org-fold-core.
>>
>> What do you mean by that?
>
> In the latest release of Org, the outlines no longer use overlays to
> fold but text-properties. All the assorted stuff was put in a general
> purpose library called "org-fold".
Relevant bit from ORG-NEWS:
> *** Users experiencing performance issues can use new folding backend
>
> The old folding backend used in Org is poorly scalable when the file
> size increases beyond few Mbs. The symptoms usually include slow
> cursor motion, especially in long-running Emacs sessions.
>
> A new optimized folding backend is now available, and enabled by
> default. To disable it, put the following to the Emacs config *before*
> loading Org:
>
> #+begin_src emacs-lisp
> (setq org-fold-core-style 'overlays)
> #+end_src
>
> Even more performance optimization can be enabled by customizing
> =org-fold-core--optimise-for-huge-buffers=. However, this option may
> be dangerous. Please, read the variable docstring carefully to
> understand the possible consequences.
>
> When =org-fold-core-style= is set to =text-properties=, several new
> features will become available and several notable changes will happen
> to the Org behavior. The new features and changes are listed below.
>
> [ subsections elided for brevity ]
> **** Hidden parts of the links can now be searched and revealed during isearch
> **** =org-catch-invisible-edits= now works for hidden parts of the links and for emphasis markers
> **** Breaking structure of folded elements automatically reveals the folded text
> **** Folding state of the drawers is now preserved when cycling headline visibility
> **** =outline-*= functions may no longer work correctly in Org mode
My understanding (based only on skimming mailing lists, haven't tried
Org 9.6 yet):
* org-fold-core-style is 'text-properties by default,
* ISTR a bug-gnu-emacs thread where overlay performance was improved, so
I wondered if Org 9.6 might revert to overlays by default and make the
new backend opt-in,
* then again ORG-NEWS advertises "new features" with the new backend, so
it's not just a matter of performance I guess?
Paging Ihor in, to dispel any misunderstanding of mine.
next prev parent reply other threads:[~2022-12-01 7:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <166983107217.27025.10929395413721986131@vcs2.savannah.gnu.org>
[not found] ` <20221130175752.70424C00B0F@vcs2.savannah.gnu.org>
2022-11-30 19:55 ` [elpa] externals/org-modern 0043e584db: Use `display ""` for hiding instead of `invisible t` Stefan Monnier
2022-12-01 2:28 ` Visuwesh
2022-12-01 7:30 ` Kévin Le Gouguec [this message]
2022-12-05 11:35 ` Ihor Radchenko
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