It seems that (despite what the shaping spec implies) uniscribe does not
apply 'dlig' by default in Arabic. I think we should do the same in
harfbuzz - i.e., apply rlig and liga, but leave dlig for the user to
explicitly request.
JK
commit 85ff25c9aafdc74993a3da018ffd86d0f1f05376
Author: Jonathan Kew <[email protected]>
Date: Thu Aug 1 17:09:14 2013 +0100
[Arabic] Don't apply 'dlig' by default, despite what the Arabic shaping
spec implies.
diff --git a/src/hb-ot-shape-complex-arabic.cc
b/src/hb-ot-shape-complex-arabic.cc
index 7f8778a..a57e81a 100644
--- a/src/hb-ot-shape-complex-arabic.cc
+++ b/src/hb-ot-shape-complex-arabic.cc
@@ -193,7 +193,6 @@ collect_features_arabic (hb_ot_shape_planner_t *plan)
map->add_gsub_pause (NULL);
map->add_global_bool_feature (HB_TAG('c','s','w','h'));
- map->add_global_bool_feature (HB_TAG('d','l','i','g'));
map->add_global_bool_feature (HB_TAG('m','s','e','t'));
}
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