John Jason Jordan wrote:

> I'm also curious why this works only with the LinuxLibertineG
> fonts. Adobe InDesign had these features 14 years ago, and
> they have always worked with any OTF font installed on the
> computer . . .

The reason is that Graphite and Opentype (OTF) are rival formats for providing 
advanced typographic features. Graphite (in my opinion) is a dead end. It was 
created by and is promoted by the Summer Institute of Linguistics, which offers 
four or five fonts in this format. Philipp Poll has created two Graphite fonts 
(Linux Libertine and Biolinum). That is the total stock of Graphite fonts on 
the planet. It seems exceedingly unlikely that there will ever be any more, 
mainly because it is so difficult to create them.

Opentype was promoted by Adobe and Microsoft but is now the subject of a formal 
international standard (under a slightly different name, Open Font Format). 
There are thousands of Opentype fonts, and the number is being constantly added 
to, not only because Opentype features are implemented in Adobe Indesign and 
Quark Xpress but also because it is relatively easy to create Opentype fonts, 
or to add Opentype features to existing fonts.

Of course the immediate problem for users of Libre Office is that it does not 
implement Opentype layout features––one of the biggest shortcomings of the 
program. When it will do so is anyone’s guess.


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