[PATCH] org.el: Adapt org-cycle to work with headlines with hidden stars

[PATCH] org.el: Adapt org-cycle to work with headlines with hidden stars

[Marlin Strub]

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Hello everyone,

I looked into using text properties to hide all the stars in org headings
(with org-starless-mode [1]),
and noticed that `org-cycle' didn't reliably cycle the visibility of
headings anymore.

Trying to find the reason for this, I found that `org-cycle' uses
`move-beginning-of-line' in combination
with a regexp to detect headings. The problem is that
`move-beginning-of-line' ignores invisible text
such that the regexp fails to match. The attached patch changes
`move-beginning-of-line' to
`beginning-of-line', which does not ignore invisible text.

This solves the issue with hidden stars, but I have a feeling that I'm
missing something. Is there a
problem with using `beginning-of-line' instead of `move-beginning-of-line'
or could this patch be
applied?

Thanks a lot for looking into this,
Marlin

[1] https://github.com/TonCherAmi/org-starless

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From 4ba5026a96c6cee4f0320f70f46245b551af2647 Mon Sep 17 00:00:00 2001
From: Marlin Strub <marlin@Marlins-MacBook-Pro.local>
Date: Fri, 11 Sep 2020 13:50:06 +0200
Subject: [PATCH] org.el: Adapt org-cycle to work with headlines with hidden
 stars

* lisp/org.el (org-cycle): Use `beginning-of-line' instead of
`move-beginning-of-line' to move point to the beginning of
line (including any invisible characters) such that org-outline-regexp
matches headlines with hidden stars (such as those produced by
[[https://github.com/TonCherAmi/org-starless][org-starless-mode]]).

TINYCHANGE
---
 lisp/org.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/org.el b/lisp/org.el
index 71dbc611e..722338ff0 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -6346,7 +6346,7 @@ Use `\\[org-edit-special]' to edit table.el tables"))
 				 (= (line-beginning-position)
 				    (org-element-property :post-affiliated
 							  item)))))
-		     (save-excursion (move-beginning-of-line 1)
+		     (save-excursion (beginning-of-line 1)
 				     (looking-at org-outline-regexp)))
 		 (or (bolp) (not (eq org-cycle-emulate-tab 'exc-hl-bol))))
 	    (org-cycle-internal-local))
-- 
2.28.0

Re: [PATCH] org.el: Adapt org-cycle to work with headlines with hidden stars

[Bastien]

Hi Marlin,

Marlin Strub <marlin.strub@gmail.com> writes:

> I looked into using text properties to hide all the stars in org
> headings (with org-starless-mode [1]),
> and noticed that `org-cycle' didn't reliably cycle the visibility of
> headings anymore.

there was a recent fix for this in the master branch: can you test
latest Org (from master) and see if your fix is still needed?

Thanks a lot,

-- 
 Bastien

Re: [PATCH] org.el: Adapt org-cycle to work with headlines with hidden stars

[Marlin Strub]

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Hi Bastien,

Thanks for looking into this. I just tested with 9c31cba00 and
org-cycle does not work reliably when org-starless-mode is
enabled unless the patch is applied.

Best,
Marlin

On Sun, 13 Sep 2020 at 19:18, Bastien <bzg@gnu.org> wrote:

> Hi Marlin,
>
> Marlin Strub <marlin.strub@gmail.com> writes:
>
> > I looked into using text properties to hide all the stars in org
> > headings (with org-starless-mode [1]),
> > and noticed that `org-cycle' didn't reliably cycle the visibility of
> > headings anymore.
>
> there was a recent fix for this in the master branch: can you test
> latest Org (from master) and see if your fix is still needed?
>
> Thanks a lot,
>
> --
>  Bastien
>

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Re: [PATCH] org.el: Adapt org-cycle to work with headlines with hidden stars

[Bastien]

Hi Marlin,

Marlin Strub <marlin.strub@gmail.com> writes:

> Thanks for looking into this. I just tested with 9c31cba00 and
> org-cycle does not work reliably when org-starless-mode is
> enabled unless the patch is applied.

Applied now, thanks for checking.

-- 
 Bastien

Re: [PATCH] org.el: Adapt org-cycle to work with headlines with hidden stars

[Marlin Strub]

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Awesome, thanks!

On Mon, 14 Sep 2020 at 15:37, Bastien <bzg@gnu.org> wrote:

> Hi Marlin,
>
> Marlin Strub <marlin.strub@gmail.com> writes:
>
> > Thanks for looking into this. I just tested with 9c31cba00 and
> > org-cycle does not work reliably when org-starless-mode is
> > enabled unless the patch is applied.
>
> Applied now, thanks for checking.
>
> --
>  Bastien
>

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