how to make custom combining diacritical marks for arabic letters?

Richard Wordingham via Unicode unicode at
Thu May 17 13:12:40 CDT 2018

On Thu, 17 May 2018 08:43:35 -0800
James Kass via Unicode <unicode at> wrote:

> This page describes the essentials of OpenType Arabic font
> development:

But isn't the problem that PUA diacritics won't reach most Arabic
shapers?  I think we're back to the vexed issue of defining Unicode
properties for PUA characters to applications.


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