[XeTeX] XeTeX documentation? (from "Checking if a font exists")

[Khaled Hosny]

On Mon, Aug 30, 2010 at 04:14:46AM -0700, Michiel Kamermans wrote:
> Jonathan,
> 
> >I'm surprised no-one has suggested the straightforward, pure-xetex
> >approach: something along these lines (untested).....
> >[snip]
> 
> Nice... I didn't know there was a \nullfont command for checking against.
> 
> That does bring up a question though: is there a comprehensive pdf
> document or web page that describes the various commands available
> in XeTeX to make life easier? TeX has the TeX book and TeX by Topic,
> LaTeX has fairly large number of publications dedicated to it, where
> might one find something similar for XeTeX? (and if possible, can it
> be linked to from the SIL XeTeX page so it's easy to find?)

Here, texlive2010, `texdoc xetex` gives me such a document, but I don't
think it would be very useful for this particular case since the
solution Jonathan posted is not xetex-specific.

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer