From: Berthold Hoellmann <berthold.hoellmann@dnvgl.com>
To: emacs-orgmode@gnu.org
Subject: Re: Bug: Problem with LaTeX export, footnotes in table headers, and longtabu [8.3.4 (8.3.4-31-gcb683e-elpa @ /home/berhol/.emacs.d/elpa/org-20160404/)]
Date: Thu, 14 Apr 2016 16:02:38 +0200 [thread overview]
Message-ID: <se4mb4z3sx.fsf@pc130799.gl.ad.germanlloyd.org> (raw)
In-Reply-To: <87inzkzkey.fsf@nicolasgoaziou.fr> (Nicolas Goaziou's message of "Thu, 14 Apr 2016 10:03:49 +0200")
Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:
> Hello,
>
> Berthold Höllmann <berthold.hoellmann@dnvgl.com> writes:
>
>> I am exporting a large table from org to pdf via LaTeX. The meaning of
>> some of the column headers are to be explained in footnotes. The table
>> spans more than one page, so continuation headers are generated using
>> longtabu. These continuation headers mangle with the footnote numbering
>> as can be seen in this example:
>>
>> # -*- mode: org -*-
>> #+STARTUP: showall
>> #+LaTeX_CLASS_OPTIONS: [a5paper]
>> #+LATEX_HEADER: \usepackage[T1]{fontenc}
>> #+LATEX_HEADER: \usepackage[utf8x]{inputenc}
>> #+LATEX_HEADER: \usepackage{tabu}
>> #+TITLE: Multi page table test
>>
>> * Multi page table
>>
>> #+ATTR_LATEX: :environment longtabu
>> | *Typ[fn:test]* |
>> |----------------|
>> | 1 |
>> | 2 |
>> | 3 |
>> | 4 |
>> | 5 |
>> | 6 |
>> | 7[fn:test2] |
>> | 8 |
>> | 9 |
>> | 10 |
>> |----------------|
>>
>> * Footnotes
>>
>> [fn:test]
>> Testing footnotes with multi page latex tables.
>>
>> [fn:test2]
>> Another Test
>
> [...]
>
>> \section{Multi page table}
>> \label{sec:orgheadline1}
>>
>> \begin{longtabu}{r}
>> \textbf{Typ\footnotemark}\\
>> \hline
>> \endfirsthead
>> \multicolumn{1}{l}{Continued from previous page} \\
>> \hline
>>
>> \textbf{Typ\footnotemark} \\
>>
>> \hline
>> \endhead
>> \hline\multicolumn{1}{r}{Continued on next page} \\
>> \endfoot
>> \endlastfoot
>> \hline
>> 1\\
>> 2\\
>> 3\\
>> 4\\
>> 5\\
>> 6\\
>> 7\footnotemark\\
>> 8\\
>> 9\\
>> 10\\
>> \hline
>> \end{longtabu}
>> \footnotetext[1]{Testing footnotes with multi page latex tables.}\footnotetext[2]{Another Test}
>> \end{document}
>>
>>
>>
>> [fn:test] becomes [1] in the first, and [2] in the continuation headers,
>> but [2] links to the content of [fn:test2], which becomes a reference
>> without target.
>
> Isn't it a LaTeX limitation? IIRC, footnotes support in tables is
> somewhat flaky. Anyway, if you think it is Org's fault, do you know the
> LaTeX code that should be produced in this case?
>
Actually I was able to patch `org-latex-footnote-reference' to get the
results I line. The trick is to add the counter number given at the
\footnotetext command to the \footnotemark command also:
(defun org-latex-footnote-reference (footnote-reference contents info)
"Transcode a FOOTNOTE-REFERENCE element from Org to LaTeX.
CONTENTS is nil. INFO is a plist holding contextual information."
(concat
;; Insert separator between two footnotes in a row.
(let ((prev (org-export-get-previous-element footnote-reference info)))
(when (eq (org-element-type prev) 'footnote-reference)
(plist-get info :latex-footnote-separator)))
(cond
;; Use \footnotemark if the footnote has already been defined.
((not (org-export-footnote-first-reference-p footnote-reference info))
(format "\\footnotemark[%s]{}"
(org-export-get-footnote-number footnote-reference info)))
;; Use \footnotemark if reference is within another footnote
;; reference, footnote definition or table cell.
((org-element-lineage footnote-reference
'(footnote-reference footnote-definition table-cell))
(format "\\footnotemark[%s]{}"
(org-export-get-footnote-number footnote-reference info)))
;; Otherwise, define it with \footnote command.
(t
(let ((def (org-export-get-footnote-definition footnote-reference info)))
(concat
(format "\\footnote{%s}" (org-trim (org-export-data def info)))
;; Retrieve all footnote references within the footnote and
;; add their definition after it, since LaTeX doesn't support
;; them inside.
(org-latex--delayed-footnotes-definitions def info)))))))
Best regards
Berthold Höllmann
--
Development Eng. - Structural Methods, Information Management Research & Development, Hamburg
E-mail berthold.hoellmann@dnvgl.com
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next prev parent reply other threads:[~2016-04-14 15:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-12 8:54 Bug: Problem with LaTeX export, footnotes in table headers, and longtabu [8.3.4 (8.3.4-31-gcb683e-elpa @ /home/berhol/.emacs.d/elpa/org-20160404/)] Berthold Höllmann
2016-04-14 8:03 ` Nicolas Goaziou
2016-04-14 14:02 ` Berthold Hoellmann [this message]
2016-04-16 10:11 ` Nicolas Goaziou
2016-04-17 15:42 ` Berthold Höllmann
2016-04-19 19:26 ` Nicolas Goaziou
2016-04-19 22:11 ` Berthold Höllmann
2016-04-20 21:40 ` Nicolas Goaziou
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