Re: [BUG] Fill-paragraph issue with hidden emphasis markers and composed characters

[Rudolf Adamkovič]

On a related note, I recently disabled 
“org-hide-emphasis-markers,” only to discover that the columns 
in all my tables that use =mono= text do not line up. Ouch!

R+

Lucas Viana <lucasvianareis@gmail.com> writes:

> Dear list, 
>
> I'm not sure if this is a general issue with fill-paragraph or 
> with the way org hides emphasis markers, but I'm facing a 
> problem with bare emacs + org. 
>
> Steps to reproduce: 1. Start emacs -Q (no configuration) 2. Set 
> some variables: 
>
> (setq org-pretty-entities t 
>       org-hide-emphasis-markers t fill-column 80) 
>
> 3. Create an empty org-mode buffer with the following paragraph: 
> "" This is a /italic sentence for a buggy/ 
> \alpha\beta\gamma\delta\nu\epsilon paragraph in terms of 
> filling, see, it's not filled yet and still the line above ends 
> early.  "" 
>
> So far so good, and with the previous config the emphasis 
> markers are now hidden and the greek letters appear as unicode 
> characters. 
>
> 4. Hit M-q (either fill-paragraph or org-fill-paragraph, both 
> have the same issue) The first line wrongly wraps after "buggy" 
> and leaves a big empty space after that, as if the greek letters 
> were not composed. 
>
> 5. In the same buffer, compare the behaviour with this paragraph 
> (very similar, but note the ! character after "buggy"): "" This 
> is a /italic sentence for a buggy/ ! 
> \alpha\beta\gamma\delta\nu\epsilon paragraph in terms of 
> filling, see, it's not filled yet and still the line above ends 
> early.  "" 
>
> When I fill this slightly different paragraph with M-q, it wraps 
> the text in the right way and the first line is completely 
> filled. 
>
> So the issue happens when a hidden emphasis marker is 
> immediately followed (maybe after a space) by a composed 
> character like \alpha. I am also facing the same issue when the 
> characters are composed by prettify-symbols-mode instead of 
> org-pretty-entities, and also with other types of hidden 
> emphasis markers. If org-hide-emphasis-markers is disabled then 
> the issue doesn't happen. 
>
> Thanks in advance! 
>
> Emacs  : GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ 
> Version 3.24.29, cairo version 1.17.4) 
>  of 2021-07-09 
> Package: Org mode version 9.5 (9.5-b83ae59 @ 
> /home/lucas/.emacs.d/.local/straight/build-28.0.50/org/) 

--
"Contrariwise," continued Tweedledee, "if it was so, it might be; 
and if it were so, it would be; but as it isn't, it ain't. That's 
logic." -- Lewis Carroll, Through the Looking Glass  Rudolf 
Adamkovič <salutis@me.com> Studenohorská 25 84103 Bratislava 
Slovakia  [he/him]