On Fri, Apr 26, 2013 at 04:37:17PM +0200, Élie Roux wrote: > If there is no simple solution, I'll try something with the nodes, I > think it will be more appropriate... I’d just go with that from start, no need to replicate XeTeX’s implementation. I believe Arthur was doing some work in this area, so you may want to check with him. Regards, Khaled