Re: Joining Arabic Letters

From: Christopher Fynn <>
Date: Sun, 1 Apr 2012 23:24:03 +0600

On 31/03/2012, Philippe Verdy <> wrote:

> This means that even if there's a font change between two letters (for
> example due to a fallback for some letters or diacritics), each letter
> should contonue to adopt its normative joining behavior (i.e.
> displaying their correct joining form).

Using OpenType or something similar there are several; ways you can
implement an Arabic script font including several different ways you
can write the lookup tables - all of which are valid. The same goes
for any other complex script.

Unless you are going to define some rigid way Arabic fonts are
implemented - and a fixed glyph set - there is just no practical way
to get font lookups to work across font change boundaries. Even then
it would require some protocol allowing the lookups in each font to
Received on Sun Apr 01 2012 - 12:32:45 CDT

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