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From: Rasmus <rasmus@gmx.us>
To: emacs-orgmode@gnu.org
Subject: Re: Bug: When exporting to PDF an Org file where multiple footnotes share the same definition, only the first footnote is clickable [8.3.4 (8.3.4-39-ge0acd8-elpaplus @ /home/jorge/.emacs.d/elpa/org-plus-contrib-20160418/)]
Date: Mon, 25 Apr 2016 15:36:07 +0200	[thread overview]
Message-ID: <874mapstdk.fsf@gmx.us> (raw)
In-Reply-To: 87h9ep6hkx.fsf@saiph.selenimh

Hi,

Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:

> Rasmus <rasmus@gmx.us> writes:
>
>> The transcoded version of the second "[fn:1]", say S2, will be passed to
>> our filter FUN, if FUN is added to
>> org-export-filter-footnote-reference-functions.  But S2 will only contain
>> the estimated number of the footnote¹, e.g. "\footnotemark[1]{}".
>
> Indeed. I don't know any other way to handle repeated footnote markers
> in LaTeX.

Could we inject labels in all footnotes?  If so we could simply use

   \textsuperscript{\ref{FN-LABEL}}

In place of

   \footnotemark[FN-GUESS]{}

It seems \footref of scrextend.sty has some extra robustness built into it
but until someone complains I think the \textsuperscript hack should be
enough and better then what we’ve got.

Example:

     \documentclass[11pt]{article}
     \usepackage[hidelinks]{hyperref}
     \usepackage{parskip}   % to avoid \noindent 
     \usepackage{scrextend} % to get \footref 
     \begin{document}
     \addtocounter{footnote}{1}
     Text\footnote{\label{org925ce52} Footnote.}\\
     Text\footref{org925ce52}\\
     Text\textsuperscript{\ref{org925ce52}}\\
     Text\footnotemark[2]{}\\
     \end{document}


>> We could capture the transcoded version of the link "[[f1]]" in FUN, if
>> FUN is added to org-export-filter-link-functions (I think).  But by then
>> we’d only be served a generic reference, e.g. "\ref{org925ce52}".  I don’t
>> know how we’d then differentiate between a link to a footnote and to some
>> other type of element, e.g. a source block.  Hence, it becomes hard to
>> guess when to use e.g. \footref{.} instead of \ref{.}.
>
> You can retrieve element referenced as "org925ce52" with
>
>   (cdr (assoc "org925ce52" (plist-get info :internal-references)))

Cool!  I hadn’t noticed that these are part of info.

> It's a bit low-level, but it is useful, it could be factored out as
> a function in "ox.el".

It should be enough to allow Jorge to write a simple filter to address
original issue.

Rasmus

-- 
To err is human. To screw up 10⁶ times per second, you need a computer

  reply	other threads:[~2016-04-25 13:36 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-23 20:54 Bug: When exporting to PDF an Org file where multiple footnotes share the same definition, only the first footnote is clickable [8.3.4 (8.3.4-39-ge0acd8-elpaplus @ /home/jorge/.emacs.d/elpa/org-plus-contrib-20160418/)] Jorge Peixoto de Morais Neto
2016-04-25  8:38 ` Rasmus
2016-04-25  8:58   ` Nicolas Goaziou
2016-04-25 10:53     ` Rasmus
2016-04-25 11:41       ` Nicolas Goaziou
2016-04-25 13:36         ` Rasmus [this message]
2016-04-25 13:57           ` Nicolas Goaziou
2016-04-25 14:04             ` Rasmus
2016-04-25 14:07               ` Rasmus
2016-05-22 20:16             ` Rasmus
2016-05-23 21:41               ` Nicolas Goaziou
2016-05-24 20:59                 ` [patch] more robust footnotes (was: Bug: When exporting to PDF an Org file where multiple footnotes share the same definition, only the first footnote is clickable [8.3.4 (8.3.4-39-ge0acd8-elpaplus @ /home/jorge/.emacs.d/elpa/org-plus-contrib-20160418/)]) Rasmus
2016-05-24 21:31                   ` [patch] more robust footnotes Nicolas Goaziou
2016-05-24 21:38                     ` Rasmus
2016-05-24 21:54                       ` Nicolas Goaziou
2016-05-25  7:16                         ` Rasmus
2016-05-25 16:50                           ` Nicolas Goaziou
2016-05-25 17:51                             ` Rasmus
2016-08-10 21:09                 ` Bug: When exporting to PDF an Org file where multiple footnotes share the same definition, only the first footnote is clickable [8.3.4 (8.3.4-39-ge0acd8-elpaplus @ /home/jorge/.emacs.d/elpa/org-plus-contrib-20160418/)] Kaushal Modi

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