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Re: [O] ox-bibtex.el -- how to join sequential citations
From: |
Eric Schulte |
Subject: |
Re: [O] ox-bibtex.el -- how to join sequential citations |
Date: |
Tue, 26 Nov 2013 06:16:08 -0700 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Nicolas Goaziou <address@hidden> writes:
> Hello,
>
> Feng Shu <address@hidden> writes:
>
>> Eric Schulte <address@hidden> writes:
>>
>>> When exporting multiple sequential citations e.g., cite:foo cite:bar
>>> etc... I would like to see something like the following (latex used for
>>> this example) "\cite{foo, bar}", but instead I'm getting "\cite{foo}
>>> \cite{bar}", which leads to poorly formed PDFs (a similar thing happens
>>> for HTML export).
>>
>> May be you should use \cite{foo, bar} directly in org file.
>
> That was, indeed, the original way to handle citations in the former
> org-export-bibtex.el. It is still supported in both LaTeX, obviously,
> and HTML (which will split the above among two anchors).
>
> "cite" link support was added later, and is lacking in this area.
>
>>> My question is how best to fix this, should I write a filter function,
>>> or does the export engine already have processes in place to handle
>>> these sorts of export context issues?
>
> At the user level, a filter is definitely the way to go.
>
Thanks, the following seems to be working. Perhaps the filter function
should be added to ox-bibtex.el?
(defun org-bibtex-group-citations (text backend info)
"Convert begin/end{verbatim} to begin/end{Verbatim}.
Allows use of the fancyvrb latex package."
(with-temp-buffer
(insert text) (goto-char (point-min))
(cond
((org-export-derived-backend-p backend 'latex)
(while (re-search-forward
"\\\\cite{\\([^[:space:]\n\r]+\\)}[[:space:]\n\r]*\\\\cite{"
nil t)
(replace-match "\\\\cite{\\1,")
(goto-char (point-min))))
((org-export-derived-backend-p backend 'html)
(while (re-search-forward
"\\(#[[:alnum:]]+\">[0-9]+<\/a>\\)\\][[:space:]\n\r]*\\[\\(<a
href=\"#[[:alnum:]]+\">[0-9]+<\/a>\\)"
nil t)
(replace-match "\\1,\\2")
(goto-char (point-min)))))
(buffer-string)))
(add-to-list 'org-export-filter-final-output-functions
'org-bibtex-group-citations)
Cheers,
>
> Though, it is an interesting feature to implement in ox-bibtex.el. One
> idea would be to write another parse-tree filter function which would
> change cite links into \cite{...} commands and consecutive cite links
> into \cite{..., ...} commands.
>
> This would also allow us to get rid of both `org-html-link' and
> `org-latex-link' advices, as no more cite link would be left in the
> parse tree anyway.
>
> What do you think?
>
>
> Regards,
--
Eric Schulte
https://cs.unm.edu/~eschulte
PGP: 0x614CA05D