Am 02.12.2021 um 14:14 schrieb Juan Manuel Macías:
Ihor Radchenko writes:
Denis Maier<denisma...@mailbox.org> writes:
Can you create an example of such scenario and post it as a bug?
Probably, we just need to strip all zero-width spaces at the basic ox.el
level.
To be clear: That's not an org bug. It's just that latex won't be able
such a word. If | is a zero width space, the word "hyphen|ation" is not
the same as "hyphenation".
1. hyphenation
2. hyphen|ation
You are right for your example, but if we force the user to put
*hyphen*|ation to create bold emphasis, it should not be any different
compared to @@latex:\textbf{hyphen}ation@@. Meanwhile the*hyphen*|ation
gets exported as \textbf{hyphen}|ation keeping the zero width space.
-- I would say that they are very random cases, and therefore
difficult to reproduce. In the 'hyphenation' example, if we load the
package showhypehns, you see that: /hyphen/ation (with zero width sp)
and \emph{hyphen}ation they are cut in the same way. But differently
from hyphenation (without emphasis) (compiled with LuaTeX). Anyway, I
have come across some curious cases. For example, a long time ago I
had defined a macro for text in other languages: #+MACRO: lg (eval (if
(org-export-derived-backend-p org-export-current-backend 'latex)
(concat "@@latex:\\foreignlanguage{@@" $1 "@@latex:}{@@" "\u200B" $2
"\u200B" "@@latex:}@@") $2)) I needed to add before and after a zero
width space, but doing so, the shape of the text was altered. That can
be reproduced with this example: #+LaTeX_Header:
\usepackage{showhyphens} #+LaTeX_Header:\usepackage{lipsum,multicol}
#+LaTeX_Header:\usepackage[spanish]{babel} #+LaTeX_Header:
\def\example{\lipsum[1]} #+LaTeX_Header: \def\zwsp{\char"200B{}}
#+OPTIONS: toc:nil @@latex:\begin{multicols}{2}@@
@@latex:\foreignlanguage{italian}{\zwsp\example\zwsp}@@
@@latex:\foreignlanguage{italian}{\example}@@
@@latex:\end{multicols}@@ Best regards, Juan Manuel
Thanks Juan Manuel. I should have tried that first. Hyphenation is the
same for both /hyphen/ation (with zero width sp) and
\emph{hyphen}ation. (Maybe I can nudge Hans Hagen to add some low level
trickery in context that removes the groups before doing the
hyphenation... but that's a different story.) Anyway, as Juan Manuel
shows there can be cases where zero width spaces cause problems.
Denis