The attachments in the email below were too big for the list (>100KB).  I
uploaded them here <http://mhbateni.com/context/bug-01/>.

On Thu, Apr 28, 2016 at 10:20 PM, Mohammad Hossein Bateni <bateni@gmail.com>
wrote:

> Hi,
>
> I am not sure whether I'm missing certain features in the font definition
> or whether there is actually some bug in how CONTEXT or LuaTeX for that
> matter handles this font.  It might as well be that there is something
> wrong with the font <http://fonts.qurancomplex.gov.sa/?page_id=608>,
> though I doubt that.
>
> Attached is my simple test program and the PDF output, which is annotated
> to show the problems.  You can compare with the reference PNG file I
> generated via rendering in Chrome.  I hope you can see the annotations
> where I have pointed out the incorrect typesetting, otherwise you can
> compare the two outputs to notice the difference: for the most part, some
> diacritics that are not placed in the right location (both vertically and
> horizontally).
>
> I am using Mac OS X with CONTEXT current version: 2016.04.13 16:46.
>
> Thanks,
> MHB
>