[XeTeX] Certain ligatures in Adobe Garamond Premier Pro

[Peter Baker]

I just used FontForge to peek into that font, and David's quite right. 
You could use FontForge (if you have that estimable program) to add 
latn{dflt} to that particular lookup. (My understanding is that Adobe 
doesn't mind people altering their own copies of Adobe fonts.) Then 
those ligatures will be used whenever you turn on dlig. Another possible 
course, if you want to use those ligatures all the time, is to add them 
to the liga lookup.

Peter

David Perry wrote:
> A bit of experimentation with Garamond Premier Pro in InDesign reveals 
> the following. (I can't try TeX right now at work).
>  
> The ch and ck ligatures are not applied unless discretionary 
> ligatures are turned on AND the language is set to German.  So it 
> appears that Adobe did not include ch and ck in the default 
> discretionary ligatures, but only under the localized German 
> features.  Try setting the language to German and see what happens.  
> The Th ligature works in English and German with the standard ligature 
> feature, not discretionary, so I'm not sure why that one won't work 
> for you.  All these work both with roman and italic.
> Also, Adobe fonts use OpenType, not AAT, features.  fontspec can 
> handle both, but it's possible that there is an issue with calling the 
> right feature names.  As I recall "rare" is the AAT term while OT 
> calls them "discretionary" ligatures.  Maybe changing the name would 
> help (the fontspec docs say that either can be used, and either 
> theoretically should work).  I can check some other things tonight if 
> none of this helps.
>  
> Regards,
> David
>
> May 1, 2009 04:12:44 PM, wolpert at uark.edu <mailto:wolpert at uark.edu> wrote:
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