[XeTeX] Nastaliq [was: The future of XeTeX]

Keith J. Schultz keithjschultz at web.de
Thu Aug 2 09:26:24 CEST 2012

Hi Again,

I am now trying to grock LuaTeX otfload, that is ContTexts font loading system.
>From what I have understood so far in order get things started is a GDEF-feature
and GPOS Lookup support in the font.loader and font-otf.lua.

Do you know off hand, if these features are already implemented in Contexts
or just not available in LuaTeX?

Sorry, to everybody else I will this is getting OT(this is a XeTeX-List) and I will take this off list,
if Arthur does not mind.


Am 02.08.2012 um 04:40 schrieb Adam Twardoch (List) <list.adam at twardoch.com>:

> Nastaliq OpenType fonts typically use the GPOS LookupType 3 (cursive attachment), which is not supported by some of the more simple-minded OpenType Layout engines.
> A.
> Sent from my mobile phone.
> On 02.08.2012, at 04:28, Mike Maxwell <maxwell at umiacs.umd.edu> wrote:
>> On 8/1/2012 6:48 PM, Khaled Hosny wrote:
>>> I remember specifically testing some Nastaliq fonts and Hans fixing some
>>> small issues I found, I just tested again now and IranNastaliq seems to
>>> work (my fork of Nafees Nastaleeq is broken though, but it uses an
>>> OpenType GDEF feature not supported by LuaTeX's font loader, so this is
>>> expected and not even Arabic specific).
>> I'm interested in this.  We have used Nafees Nastaleeq v1.2 (IIRC), and plan to use it for Punjabi written in Shahmukhi.  While this font works reasonably well in XeTeX, there were a couple things we were bothered by.  But it's been awhile since we last used it, and we're not experts in this style of Arabic script, so I can't remember the problems, nor would I be confident enough to say much about them anyway.
>> Have you written up your work on Nastaliq?
>> -- 
>>   Mike Maxwell
>>   maxwell at umiacs.umd.edu
>>   "My definition of an interesting universe is
>>   one that has the capacity to study itself."
>>       --Stephen Eastmond
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