Exporting Org Mode citations to LaTeX
reddit / emacs

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danderzei · 2022-12-28 03:37

Hi, I am migration from org-ref to using the built-in citations in Org
Mode. I am having some trouble properly exporting to LaTeX / PDF.

This is my MWE:

    #+title: Testing org-cite \LaTeX export
    #+latex_header: \usepackage{natbib}
    #+bibliography: r4h2o.bib
    #+options: toc:nil
    #+cite_export: natbib

    Hello World! This is a citation: [cite:@alghamdi_2022_clas]

    #+print_bibliography:
    +end_export

I get an error message: "Unknown processor natbib"

Exporting with the basic exporter works fine. CSL is also problematic.

The Org Mode manual is a bit cryptic on this functionality.

Anyone can help fixing this issue?

P.S: I used a clean Emacs instance (emacs -q), no config.

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danderzei · 2022-12-28 05:56

I solved my own problem - it seems to work when using this config:

    (require 'oc-natbib)

Plus usual setup for LaTeX export ...

Doh!

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yantar92 · 2022-12-28 08:06

oc-natbib should be automatically loaded in such scenarios starting
from Org 9.6

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danderzei · 2022-12-28 08:16

That's what I thought ... go figure. The [Org
manual](https://orgmode.org/manual/Citation-handling.html) actually
states that this needs to be done.

Lesson: read the manual before digging in the source code ;)

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yantar92 · 2022-12-28 08:27

We just forgot to remove this clause in Org 9.6 :)

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danderzei · 2022-12-28 09:25

I am still a bit confused. I can get it to work fine with the
`#+cite_export: natbib apalike aythoryear` token for each file.

Setting the `org-cite-export-processors` is still a bit elusive. This
is what I constructed:

    (setq org-cite-export-processors
      '((latex . '(natbib "apalike" "authoryear"))
        (t     . basic)))

I get an error. Do you know how to properly set this variable?

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yantar92 · 2022-12-28 09:28

There is no such variable. You need to set org-cite-export-processors.
Also, you don't need all that "." and extra quotes inside.

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danderzei · 2022-12-28 09:34

P.S. I am on 9.5.2.

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yantar92 · 2022-12-28 09:48

The online manual is for the last release. Keep it in mind.

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danderzei · 2022-12-28 09:57

New version:

    (setq org-cite-export-processors
          '((latex  (natbib apalike authoryear))
            (t      basic)))

Error: "Invalid cite export processor definition: ((natbib apalike
authoryear))"

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yantar92 · 2022-12-28 10:33

I suggest you to read the docstring: F1 v org-cite-export-processors
<RET>

    (setq org-cite-export-processors
      '((latex natbib "apalike" "authoryear")
        (t basic)))

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danderzei · 2022-12-28 10:39

I figured it out (updated to 9.6).

      (setq org-cite-csl-styles-dir "~/Documents/library/"
        org-cite-export-processors
        '((latex natbib "apalike" "authoryear")
          (t     csl "apa6.csl")))

I got confused by the reference to "triplet" in the docstring. Works a
treat now. Thanks for the tips!

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danderzei · 2022-12-28 11:06

I read it closely, but it is confusing.

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yantar92 · 2022-12-28 11:29

Are you confused because `(a b c)` list is the same with `(a . (b c))`
in Elisp?

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danderzei · 2022-12-28 11:49

I must found that out, thanks.

Documentation in Emacs can be cryptic. The docstring could easily be
improved for clarity.

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yantar92 · 2022-12-28 11:52

Feel free to suggest an improvement by dropping an email to Org
mailing list. See https://orgmode.org/manual/Feedback.html#Feedback