[XeTeX] Reducing ligatures in arabxetex

[maxwell]

On Wed, 15 Feb 2012 18:53:56 +0100, Peter Dyballa <Peter_Dyballa at Web.DE>
wrote:
> Am 15.2.2012 um 18:29 schrieb maxwell:
> 
>> (fc-list doesn't seem to provide that info)
> 
> It does:
> 
> 	fc-list : file family fullname lang | grep -i schehera
> 	/Library/Fonts/Extrafonts/ScheherazadeRegOT.ttf:
>
	Scheherazade:fullname=Scheherazade:lang=aa|ar|ast|ay|az-ir|bi|br|ch|co|da|de|en|es|et|eu|fa|fi|fj|fo|fr|fur|fy|gd|gl|gv|ho|ia|id|ie|io|is|it|ks|ku-ir|lb|mg|nb|nds|nl|nn|no|nr|nso|oc|om|ps-af|ps-pk|pt|rm|sma|smj|so|sq|ss|st|sv|sw|tl|tn|ts|ug|ur|uz|vo|vot|wa|xh|yap|zu|an|fil|ht|jv|kj|ku-iq|kwm|li|ms|ng|ota|pa-pk|pap-an|pap-aw|rn|rw|sc|sd|sg|sn|su|za|lah

Thanks--there's another program that gives this kind of info, and more,
but I can't remember its name.

Back on this one: most of those codes appear to be ISO 639-1 codes
(including a large number of Latin script languages).  And I can figure out
what the hyphenated codes are, e.g. ku-ir is Iranian Kurdish (with the
second code being an ISO 3166-1 country code).  But what are the
three-letter codes in there?  ast, fur, nds, sma, smj, vot and yap?  639-2
codes?  

I wish fc-list were better documented...

   Mike Maxwell