dynamically set options for a dropdown menu

[Thomas Friedrichsmeier]

On Thu, 11 Oct 2018 13:06:55 +0200
Thomas Friedrichsmeier <thomas.friedrichsmeier at ruhr-uni-bochum.de>
wrote:
> On Thu, 11 Oct 2018 11:39:02 +0200
> meik michalke <meik.michalke at uni-duesseldorf.de> wrote:
> > i see. but select can't be limited to single selections, right?  
> 
> True, but this will be easy to add. Hang on...

Ok, done.
 
> > as you've seen, i've added a small function called
> > rk.check_for_pandoc() to the rkward R package, which checks the
> > system for a pandoc installation and provides some information on
> > supported formats.

I suggest renaming this to rk.check.for.pandoc(), for consistency with
our (questionable) naming style, so far.

> > i think it should either added somewhere to RKWard's startup routine
> > and its findings  appended to the global .Options, and/or included
> > in rk.sessionInfo() (for debugging).

It is really _this_ important? With respect to previews, there is
already some logic to detect if pandoc is missing altogether
(https://cgit.kde.org/rkward.git/tree/rkward/windows/rkcommandeditorwindow.cpp#n917).
That could/should certainly be elaborated using your checker function.

Regards
Thomas
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