[XeTeX] MinionPro-Regular and Ornaments

Jonathan Kew jonathan_kew at sil.org
Sat May 6 11:19:17 CEST 2006

On 6 May 2006, at 2:15 am, Will Robertson wrote:

> On 06/05/2006, at 10:37 , Adam Twardoch wrote:
>> Unfortunately, XeTeX currently only supports the first variant
>> returned by [GSUB lookup type 3] rather than allowing the user to
>> select which variants to use. Therefore, at this moment, the ornm
>> feature as implemented by Adobe is not very useful.
> I was asked parenthetically about this, Jonathan. Is there any hope
> for ICU being able to support these types of things?

Well, anything's possible.... just a Small Matter Of Programming. :)

As of ICU 3.4 (the release XeTeX is currently using), there's not  
even a general API to activate/deactivate features, only a couple of  
flags that can be set for the layout engine -- one for kerning, one  
for ligatures. So I've extended this already, to support activation  
of arbitrary features. But supporting one-of-many features would  
require a further extension to pass the selected value down into the  
lower levels of the engine.

If ICU itself is extended in this way, obviously I'd expect to  
support it in XeTeX. Otherwise, it's on my mental "to-do" list, but  
other things are currently more urgent -- like the crashes some Linux  
users have reported with certain fonts, and some of the unfinished  
aspects of xdvipdfmx.


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