On 11/25/2013 8:18 PM, Hans Hagen wrote:
yes, but calling this a normal font is somewhat over-the-top
(1) the left/right () are not part of the lookup, and they are not even
in the font: imo they should be, and also be part of the lookup then
(2) you cannot expect other digits to work well as *all* become
ornamented, so the font is only useable for special purposes (for which
it might lack other niceties)
(3) the <arabic number> * n are mapped onto a ligature (lots of them are
available in the font, upto a certain number)
(4) so, also a single digit is a ligature and (mostly because i have all
kinds of tracing depending on cases, i never expected that one to happen
so it was not done at all)
At least I now see the odd cases and keep an eye on them. It's also
another demo that traditional font terminology - like 'ligature' - in
opentype usage / implementation is rather useless.
I uploaded a beta that fixes the
single-substitution-disguised-as-ligature but be aware of the fact that
it's a somewhat weird font so watch your input.
test code:
\starttext
\showotfcomposition{file:uthmanichafs1ver09.ttf*arabic}{r2l}{١} \page
\showotfcomposition{file:uthmanichafs1ver09.ttf*arabic}{r2l}{١ ١} \page
\showotfcomposition{file:uthmanichafs1ver09.ttf*arabic}{r2l}{١١} \page
% \usemodule[fonts-coverage]
% \showfontcomparison[list=file:uthmanichafs1ver09.ttf]
\stoptext
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Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
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