2011/11/15 Heiko Oberdiek :

As result of "pdftex --ini --etex" macro:->a b is printed. "luatex --ini --etex" breaks with an error:

 Runaway definition?  ->a  ! File ended while scanning definition of \x.  <inserted text>                  }  l.9 \edef\x{\scantokens{a  b\noexpand}                                       }  ?

Thanks; I've opened an bug report at http://tracker.luatex.org/view.php?id=733 Best Martin