Re: [O] Possible bug in org-mode (MELPA version as of 1018-11-25) : #+language: is not (fully) honored.

[Emmanuel Charpentier]

Le mercredi 28 novembre 2018 à 00:40 +0100, Nicolas Goaziou a écrit :

> address@hidden writes:

>

> > Le mardi 27 novembre 2018 à 21:26 +0100, Nicolas Goaziou a écrit :

> >

> > [ Snip... ]

> >

> > > What happens if you remove "org-ref.el" reference?

> >

> > Same thing.

> >

> > Even after uninstalling org-ref and its dependencies.

> >

> > Sorry...

>

> OK. I got it. This has nothing to do with LANGUAGE keyword.

>

> Babel is not a default package, per `org-latex-default-packages-

> alist.

> You need to add it to `org-latex-packages-alist'.

Close, but no cigar :

I used the `customize' interface to add it to `org-latex-default-

packages-alist' (because the package to load is compiler-dependent),

which becomes:

(("AUTO" "inputenc" t

  ("pdflatex"))

 ("T1" "fontenc" t

  ("pdflatex"))

 (#1="" "graphicx" t nil)

 (#1# "grffile" t nil)

 (#1# "longtable" nil nil)

 (#1# "wrapfig" nil nil)

 (#1# "rotating" nil nil)

 ("normalem" "ulem" t nil)

 (#1# "amsmath" t nil)

 (#1# "textcomp" t nil)

 (#1# "amssymb" t nil)

 (#1# "capt-of" nil nil)

 (#1# "hyperref" nil nil)

 (#1# "babel" t

      ("pdflatex"))

 (#1# "polyglossia" t

      ("xelatex" "lualatex")))

I then retried an example (similar to the first one, but another

machine...) (see enclosed files). 

  * The latex file does indeed contain "\usepackage{babel}" at the end

    of preamble

  * But the language is never set.

  * Therefore, no "frenchizing" happens...

This is due to the fact that, in order to get what I mean, the babel

loading should be "\usepackage[frenchb]{babel}", i. e. take the value

corresponding to whatever #+language: implies ("frenchb" for "fr",

etc...). I do not know how to do that.

Is there a documented way to do that, or should I dive in ox-latex

source ?

A couple of remarks :

  * If this setup is necessary to get #+langiage: honored fot LaTeX 

    export, this should be done by default (i. e. in org's source 

    code).

  * One might wish to allow to fully use babel's (and polyglossia's) 

    abilities by specifying a set of possible #+language:s (first 

    call) or switch to another language (further calls down the 

    file...).

  * concerning french: I understand that "frenchb" is obsolete and 

    that one should use "french" instead (better compatibility with

    ispell and flyspell-babel, among others)...

  * I suggest a '(#1# "fontspec" t '(xelatex lualatex)), and possibly

    an '(#1# "mathspec" t '(xetex luatex)) or '(#1# "unicode-math" t

                                                '(xetex luatex))

    entry(ies) to be added to the default : xetex is more and more 

    used, and luatex is officially the successor to pdftex...

HTH,

--

Emmanuel Charpentier

Le mer. 28 nov. 2018 à 00:40, Nicolas Goaziou <address@hidden> a écrit :

address@hidden writes:

> Le mardi 27 novembre 2018 à 21:26 +0100, Nicolas Goaziou a écrit :
>
> [ Snip... ]
>
>> What happens if you remove "org-ref.el" reference?
>
> Same thing.
>
> Even after uninstalling org-ref and its dependencies.
>
> Sorry...

OK. I got it. This has nothing to do with LANGUAGE keyword.

Babel is not a default package, per `org-latex-default-packages-alist.
You need to add it to `org-latex-packages-alist'.

TstFrench.org
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TstFrench.tex
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