[XeTeX] Ligature unavailable in Estrangelo Antioch

[Gareth Hughes]

Estrangelo Antioch is one of the freely available Meltho fonts for
Syriac. I can see that the font has three ligature glyphs, but XeTeX is
only forming one of them, to access the others I need to make a special
glyph call. The minimal input and output are attached. When I use
Fontforge to read the lookups, the two ligatures are mentioned in
ligature substitution subtable 9 in joining and isolated forms. However,
I don't know how to get this table to be used.

Gareth.

-- 
Gareth Hughes

Department of Eastern Christianity
Oriental Institute
Pusey Lane
Oxford
OX1 2LE

+44 (0)1865 610227
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