On 9/10/2013 6:43 AM, Peter Graif wrote:
Can you make a as-small-as-possible test file?
Preferable with proper utf-8 sequences (+ comment mentioning numbers/classes),
good and wrong.
I can probably figure it out but I cannot read or input easily this kind of
scripts.
Hans
Sure thing. I don't understand how opentype features are represented nor how
the ligature logic is dividd up between the font and the engine, so I'm not
quite sure what information is helpful or relevant. But, here's a minimal
document that contains all the problem sequences I've identified.
As a rough guide, here's another image with the current ConTeXt rendering in
black and the desired rendering in red:
http://i.imgur.com/MyvMneg.png
Is that the information you need? Or is there something else I can do?
it's ok
it took me quite a while to notice that it's a side effect of two
features that are turned on
you can play with
\definefontfeature
[devanagari-one]
[devanagari-one]
[rphf=no]
and
\definefontfeature
[devanagari-one]
[devanagari-one]
[half=no]
maybe Kai can have a look at it: as these are dealt with in a different
we probably don't need to enable them in the feature processor (even
block them)
btw, you can play with
\showotfcomposition{file:chandas.ttf*devanagari-one}{l2r}{\char"0915
\char"094D \char"0930}
to see what happens
(i also noticed a few possible further optimizations but that's for later)
Hans
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