Re: [BUG] Exporting italic link with bang inside to html fails to parse the link [9.5.2 (N/A @ /gnu/store/89yvbijwnvsbpa5h33mvbgh1gy9w30n2-emacs-org-9.5.2/share/emacs/site-lisp/org-9.5.2/)]

[Max Nikulin <manikulin@gmail.com>]

On 01/05/2022 10:27, Ihor Radchenko wrote:
> Max Nikulin writes:
> 
>>>> 2021-09-03  5:17 Dr. Arne Babenhauserheide Bug: PDF Export of Link fails
>>>> https://list.orgmode.org/87pmtqp79s.fsf@web.de/T/#u
>>
>> Then the older bug may be cancelled as a duplicate.
> 
> Not sure. Even a fix to org-insert-link would not solve the problem with
> unexpected export if the link is typed in manually. So, I'd rather keep
> both the reports for the time being.

I would not insist any more. My point was: the same reporter, the same 
case of punctuation after slash in link target, the same idea to make 
`org-insert-link' more smart.

> Or someone may go through all the related bugs and create a single giant
> discussion to avoid scattering things around. In my notes, I have at
> least 6 discussions related to edge cases of Org markup.

I have some notes as well. Though I think it should be either FAQ entry 
or a separate document describing limitations of the parser (and test 
data set for the parser).

> I think it is already kind of official. At least, we directly suggest
> using zero width spaces in
> https://orgmode.org/manual/Escape-Character.html#Escape-Character

Things are more complicated. Without a filter (that it is not mentioned) 
it may cause undesired line breaks (the primary purpose of zero width 
space). Fortunately PdfLaTeX ignores them.

Tom Gillespie. On zero width spaces and Org syntax. Fri, 3 Dec 2021 
20:04:28 -0800. 
https://list.orgmode.org/CA+G3_PM4cxHa8bU+3QG541UiOauLNAQFZQu-+UKczx3itOeTHg@mail.gmail.com

suggested word joiner U+2060, but this character is not a space for 
regular expressions. I experimented a bit, but I can not provide a 
summary yet, my notes are in early draft stage. the "Escape Character" 
section should be expanded to discuss more use cases.

>> In the case of links I still prefer breaking emphasis at the link
>> borders. `org-insert-link' may check after inserting the markup if it
>> is parsed as a link and add more markers if necessary.
>> ...
>>       /inter/[[https://orgmode.org/?oops=1][/word/]]/link/
> 
> I do not like this idea. It is fine when inserting a link into existing
> emphasis, but what if an emphasis is applied around link later? We would
> also need to update org-emphasize and still have an issue because many
> users simply type the emphasis markers manually.

Emphasis around other inline objects anyway can be easily broken. Try to 
make the whole string bold:

     begin =middle* verbatim= end

It may be useful to add a checker to `org-lint' that issues warnings for 
confusing link targets.

I believe that zero width space does not belong to "plain text markup" 
since it is invisible (at least by default). I see that printable ASCII 
characters are already in use, but I still think that U+200B should be 
used as rare as possible.

You are aware of my opinion now and I do not need more. You are free to 
ignore it since I can not offer anything better.