On Wed, 23 Mar 2005 noreply@sarovar.org wrote:
Bugs item #292, was opened at 2005-02-14 15:22
Comment By: Martin Schröder (oneiros) Date: 2005-03-23 15:43
what's the status here? I remember you fixed this somehow at EuroTeX.
no, i tried only a kludge, requiring ledmac macro changes, and nothing after EuroTeX yet. No idea how to really solve this. Rough stuff: One could maybe say that protrusion is done exclusively by the paragraph builder, never by a hbox. Maybe clean but not backward-compatible. All margin kerns would be removed during unhboxing and unhcopying. They can be restored after these actions if done into a vbox or vtop (even one with a single line only), but this requires macro changes. If protrusion should survive unhboxing into a hbox (like in ledmac), one has also to take care of cases like several sequential unhboxings into the same hbox. Maybe also first remove the kerns and then restore them by the hbox. Then things would stick out also from hboxes. Interesting is that it worked once; how? What if two hboxes are flush together at their sides? All potentially troublesome... Needs Thanh. Regards, Hartmut