Citations: Locale specific adaptions?

[M . ‘quintus’ Gülker]

Dear list,

CSL has a concept of locales, where things like specific terms or the
date format are drawn from locale files (see
https://docs.citationstyles.org/en/1.0.1/specification.html#locale). I
am not entirely sure if this is supported yet by the new citations
functionality. Take this test document test.org:

    #+TITLE: Test
    #+LANGUAGE: de
    #+AUTHOR: Testauthor
    #+bibliography: /tmp/test/test.bib
    #+cite_export: csl /tmp/test/juristische-zitierweise.csl

    Das ist ein Test. [cite: @boehme-neßler2017unscharfes-recht-digital p. 
3033] Zweiter Satz.
    Noch ein Test. [cite: @akbarian2020oeffentliche-raeume]

    #+print_bibliography:

Where /tmp/test/test.bib looks like this:

    @Article{boehme-neßler2017unscharfes-recht-digital,
        author = {Volker Boehme-Neßler},
        title = {Die Macht der Algorithmen und die Ohnmacht des Rechts},
        shortjournal = {NJW},
        journaltitle = {Neue Juristische Wochenschrift},
        year = {2017},
        pages = {3031-3037},
        langid = {ngerman}
    }

    @online{akbarian2020oeffentliche-raeume,
        author = "Samira Akbarian",
        title = "An einen, der vorüberfuhr",
        language = "de",
        date = "2020-12-14",
        url = "https://verfassungsblog.de/an-einen-der-voruberfuhr/";,
        urldate = "2021-01-02"
    }

juristische-zitierweise.csl is a style for longer judicial works and
available from the CSL repository at 
https://github.com/citation-style-language/styles/blob/e22b8a566bad9b4c7f52720f60dd875057a5d210/juristische-zitierweise.csl.

Given that test.org spefies “#+LANGUAGE: de”, I would expect that
exporting uses the German terms and date format. However, exporting e.g.
to HTML gives this in the bibliography:

    Akbarian, Samira, An einen, der vorüberfuhr, Stand: December 14,
    2020, https://verfassungsblog.de/an-einen-der-voruberfuhr/
    (accessed 01/02/2021).

The correctly German word “Stand” is hardcoded in
juristische-zitierweise.el, so ignore that one for a moment. Other than
that, you will notice that the date format is US English. This should
not be the case. For comparison, here is the same document in Pandoc
Markdown:

    ---
    title: Test
    author: Testauthor
    lang: de
    ---

    Das ist ein Test. [@boehme-neßler2017unscharfes-recht-digital, p. 3033] 
Zweiter Satz.
    Noch ein Test. [@akbarian2020oeffentliche-raeume]

If this is exported with

    pandoc -o test-pandoc.html -s --toc -C --csl=juristische-zitierweise.csl 
--bibliography=test.bib test.md

then the cited entry in the bibliography correctly reads

  Akbarian, Samira, An einen, der vorüberfuhr, Stand: 14.
  Dezember 2020, https://verfassungsblog.de/an-einen-der-voruberfuhr/
  (besucht am 02.01.2021).

You see how the date format changed for both the long and the numeric
format and how the translated string "besucht am" is used.

I am not entirely sure if this is a bug, a missing feature (if so, I
would like to request it), or a user error on my side. Please enlighten
me.

I used org 9.5 from MELPA with citeproc.el from the Git repository at
34e66583d95a8d80fb5b9f2960f3382ca0e6d3ab.

  -quintus

-- 
Dipl.-Jur. M. Gülker | https://mg.guelker.eu | PGP: Siehe Webseite
Passau, Deutschland  | kontakt@guelker.eu    | O<