Dear all,
It seems that \hyphenpenalty is not working at all in LuaTeX. See the
difference between the outputs of LuaTeX and pdfTeX on the following
example:
\hyphenpenalty=-10000
ab\discretionary{-}{-}{-}cd
\bye
P.S.: I have reporter the issue on http://tracker.luatex.org/view.php?id=842
Thank you!
--
Elie