Re: [O] [export] Should sidewaystable option automatically add rotating package?

[Rasmus]

Hi Carsten,

Carsten Dominik <address@hidden> writes:

> On 19.9.2013, at 00:21, Rasmus <address@hidden> wrote:
>
>> Carsten Dominik <address@hidden> writes:
>> 
>>>> [...]
>>>> The output tex file looks something like this:
>>>> 
>>>> \ifPDFTeX\usepackage[utf8]{inputenc}\else\fi
>>>> \ifPDFTeX\usepackage[T1]{fontenc}\else\fi
>>> 
>>> this looks excellent.  I think we will implement this as the default
>>> behavior, but only after 8.2.
>>> Does this capture all the possible cases, or are there more cases to 
>>> consider?
>> 
>> I'm not sure what you mean by all cases.  It depends on the the iftex
>> package, so everything will break down if it ain't loaded or if it
>> ain't loaded before it's used.
>> 
>> So what would the goal be?  To make it compatible with XeLaTeX and
>> LuaLaTeX out of the box?
>
> Yes, this is what I mean.  I would be happy to have some clever line
> in there that would do the right thing for variants of LaTeX.  THis is
> also what I mean by "all cases".

OK now I appreciate the idea.  It should be doable at the expend of
depending on some magic such as iftex.  A clever scheme would have to
be made up so that you wouldn't end up in cases where \ifPDFTeX is
used, but iftex isn't loaded.

It could be a fourth *optional* argument to Org LaTeX package alists.
E.g. '("T1" "fontenc" t 'pdf) could produce
\ifPDFTeX\usepackage[T1]{fontenc}\else\fi.  Depending on the level of
support of iftex one would have to recognize the keywords
(lua -lua xe -xe pdf -pdf) where '-' is the negation (e.g. not pdf).

Anyway, after 8.2 is still a bit away.

–Rasmus

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