Re: Trailing whitespace after export snippets without a transcoder

[Max Nikulin]

On 21/04/2024 20:00, Ihor Radchenko wrote:
> Max Nikulin writes:
> >       A space@@ascii:*@@ character.
>
> Hmm. We actually have a similar scenario in `org-export--prune-tree'
> with a slightly different logic - only keep spaces when previous object
> does not have any.

I like this idea. At first I even believed that backend-specific code 
would not be necessary.

> I do not think that we need to handle this Org mode-wide (it will be
> difficult and will likely cause breaking changes).

I have not figured out why it may become a breaking changes and what 
backends need blank lines inside paragraph. I would make stripping empty 
lines default behavior with some option to disable this feature.

> See the attached tentative fix.

Since zero width spaces are part of Org syntax, they need special treatment.

---- 8< ----
#+macro: empty (eval "")

Some *bold*​@@comment: *@@ text.
@@comment: line@@
More /italic/​{{{empty}}} text.
{{{empty}}}
Last line.
---- >8 ----

LaTeX export:
---- 8< ----
Some \textbf{bold}​text.
More \emph{italic}​ text.

Last line.
---- >8 ----

Notice visible space character disappeared after "bold". I am leaving up 
to you to decide if empty line appeared due to a macro is a bug or a 
feature. If I remember it correctly, your opinion is that a macro 
expanding to multiple paragraphs is a valid one.