Re: [BUG] Org export to latex/pdf with longtabu adds extra line (\\) when #+NAME is present but no #+CAPTION [9.8-pre (release_9.7.11-145-g28b631 @ /home/aurel/admin/org-bugreport/org/lisp/)]

[Ihor Radchenko <yantar92@posteo.net>]

> when exporting org table to latex/pdf with longtabu environment the
> generated latex includes extra \\ if the #+NAME tag is present,
> inserting an needed row, the resulting table look ugly in some cases.

Thanks for reporting!
Confirmed.

> The extra \\ seem to be added at ox-latex.el line 3937 (current git head):
> 
> 	(concat (and fontsize (concat "{" fontsize))
> 		(format "\\begin{%s}%s{%s}\n" table-env width alignment)
> 		(and above?
> 		     (org-string-nw-p caption)
> 		     (concat caption "\\\\\n")) ; <= HERE 
> 		contents
> 		(and (not above?)
> 		     (org-string-nw-p caption)
> 		     (concat caption "\\\\\n"))
> 		(format "\\end{%s}" table-env)
> 		(and fontsize "}"))))
> 
> When I remove the "\\\\" the generated code is correct, but I suspect
> this is may be useful in some other cases and this may not be a suitable
> fix?

Yes, the problem occurs where you pointed.
The "\\\\" part is present there from the very first commit in ox-latex.
I am not sure why it is there.

What happens if you remove "\\\\" part from the code and play around
with tables with/without #+caption/#+name?

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
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