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From: Ihor Radchenko <yantar92@posteo.net>
To: Rick Lupton <mail@ricklupton.name>
Cc: "Y. E." <emacs-orgmode@gnu.org>
Subject: Re: [PATCH v2] org-id: allow using parent's existing id in links to headlines
Date: Sat, 03 Feb 2024 13:10:17 +0000	[thread overview]
Message-ID: <87cytdithi.fsf@localhost> (raw)
In-Reply-To: <70c0e6fb-3e9f-4b84-8d00-1b1e62ec19d0@app.fastmail.com>

"Rick Lupton" <mail@ricklupton.name> writes:

> I see.  Updated to get the search string first, before the possible properties draw appears.
>
> To make this work I changed `org-link-precise-link-target': instead of
> accepting the RELATIVE-TO argument and rejecting unsuitable targets
> internally, it now sets a marker `org-link-precise-target-marker'
> showing where the target that was found is, so the caller can decide
> if the found target is suitable. I copied the approach from
> `org-entry-property-inherited-from', hope that doesn't cause any other
> issues.

I'd prefer to avoid using global variables here.
`org-entry-property-inherited-from' dates to pre-lexical binding times
and is a potential source of subtle bugs if several `org-entry-get'
calls happen unexpectedly to the code, changing
`org-entry-property-inherited-from' multiple times.

Instead, I suggest changing the return value of
`org-link-precise-link-target' to a list that includes marker in
addition to search string and description.

>> The fact that links stored via `org-store-link' cannot be open with
>> default settings is not good.
>> Also, your patch disregards this setting - it should not match
>> non-headline search strings with the default value of
>> `org-link-search-must-match-exact-headline'.
>
> `org-link-search-must-match-exact-headline' affects `org-link-search', which is called by `org-id-open' -- so I think the behaviour for these org-id links should be the same as for other file links? Am I missing something?

No, you don't.
In my testing, I used #+name: as link target.
However, what I missed is that #+name targets are matched even when
`org-link-search-must-match-exact-headline' is set to 'query-to-create.
The docstring is not accurate there and must be updated.

> Or, maybe you mean links that rely on `org-link-search-must-match-exact-headline' should not be stored.  That would seem reasonable, but also doesn't need to be part of these changes here?

Yes, I also meant this. Indeed, it is out of scope of your patch. It was
a comment for future reference.

>> Probably, changing the default value of
>> `org-link-search-must-match-exact-headline' to nil is due.
>
> It seems like the behaviour below would be desirable, but doesn't currently exist with any setting of `org-link-search-must-match-exact-headline'?
>
> (org-link-search "plain text")  -->  fuzzy search for all text
> (org-link-search "*heading")    -->  search only headings, optionally creating if missing

That would also make sense. I like this idea.

>>> -      (org-insert-heading nil t t)
>>> +      ;; Find appropriate level for new heading
>>> +      (let ((level (save-excursion
>>> +                     (goto-char (point-min))
>>> +                     (+ 1 (or (org-current-level) 0)))))
>>
>> This is fragile. You assume that `point-min' always contains a heading.
>> That may or may not be the case - `org-link-search' may be called by
>> third-party code that does not care about setting narrowing in certain
>> ways.
>
> I don't think it's a problem. (org-current-level) returns something suitable whether or not point-min contains a heading. Both the situations below seem reasonable choices for the level of the newly created heading at the end:

That's right.

> ---start of narrowing---
> Text
> * H1
> ** H2
> * A new level 1 heading is created at the end
> ---end of narrowing---
>
> ---start of narrowing---
> * H1
> ** H2
> ** A new level 2 heading is created at the end
> ---end of narrowing---

However, the second scenario is unexpected - consider that your
narrowing is not a narrowing but the whole contents of an Org file.

Before your patch, in both cases, a new level 1 heading is created.
With your patch, the second case will create a new level 2 heading even
for [[*Foo]] links.

It looks like we cannot simply rely on narrowing to determine the
created heading level.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>


  parent reply	other threads:[~2024-02-03 13:07 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-24 11:40 [PATCH] org-id: allow using parent's existing id in links to headlines Rick Lupton
2023-07-25  7:43 ` Ihor Radchenko
2023-07-25 15:16   ` Max Nikulin
2023-07-26  8:10     ` Ihor Radchenko
2023-07-27  0:16       ` Samuel Wales
2023-07-27  7:42         ` IDs below headline level (for paragraphs, lists, etc) (was: [PATCH] org-id: allow using parent's existing id in links to headlines) Ihor Radchenko
2023-07-28 20:00           ` Rick Lupton
2023-07-28 19:56       ` [PATCH] org-id: allow using parent's existing id in links to headlines Rick Lupton
2023-07-29  8:33         ` Ihor Radchenko
2023-11-09 20:56   ` Rick Lupton
2023-11-10 10:03     ` Ihor Radchenko
2023-11-19 15:21       ` Rick Lupton
2023-12-04 13:23         ` Rick Lupton
2023-12-10 13:35         ` Ihor Radchenko
2023-12-14 20:42           ` Rick Lupton
2023-12-15 12:55             ` Ihor Radchenko
2023-12-15 16:16               ` Rick Lupton
2023-12-16 14:20                 ` Ihor Radchenko
2023-12-17 19:07                   ` [PATCH v2] " Rick Lupton
2023-12-18 12:27                     ` Ihor Radchenko
2024-01-02 16:13                       ` Rick Lupton
2024-01-03 14:17                         ` Ihor Radchenko
2024-01-28 22:47                       ` Rick Lupton
2024-01-29  0:20                         ` Samuel Wales
2024-01-29 13:06                           ` Ihor Radchenko
2024-01-30  0:03                             ` Samuel Wales
2024-02-03 15:08                               ` Ihor Radchenko
2024-11-13  3:23                                 ` Samuel Wales
2024-01-29 13:00                         ` Ihor Radchenko
2024-01-31 18:11                           ` Rick Lupton
2024-02-01 12:13                             ` Ihor Radchenko
2024-02-01 16:37                               ` Rick Lupton
2024-02-03 13:10                             ` Ihor Radchenko [this message]
2024-02-08  8:24                               ` [PATCH] lisp/ol.el: Improve docstring Rick Lupton
2024-02-08 14:52                                 ` Ihor Radchenko
2024-02-08  8:46                               ` [PATCH v2] org-id: allow using parent's existing id in links to headlines Rick Lupton
2024-02-08 13:02                                 ` Ihor Radchenko
2024-02-08 22:30                                   ` Rick Lupton
2024-02-09 12:09                                     ` Ihor Radchenko
2024-02-09 12:47                                       ` Rick Lupton
2024-02-09 12:57                                         ` Ihor Radchenko
2024-02-24 10:48                                           ` Bastien Guerry
2024-02-24 13:02                                             ` Ihor Radchenko
2024-02-24 15:57                                               ` Rick Lupton
2024-03-05 14:05                                               ` Stefan
2024-03-05 14:51                                                 ` Ihor Radchenko
2023-11-04 23:01 ` [PATCH] " Rick Lupton
2023-11-05 12:31   ` Ihor Radchenko

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