On Wed, May 09, 2012 at 11:42:17AM +0100, David Carlisle wrote: > On 09/05/2012 09:16, Taco Hoekwater wrote: > >So if you do not want incompatibilities with TeX82, it would help if > >you did not use extended primitives to define stuff. > > Yes but as you know, there isn't a single "you" involved here. If bm (or > amsmath) or any other ancient bit of code that's using \mathcode gets > used in lualatex, then the person who wrote the package and the person > using the package are typically not the person who set up the mathcode > of the letter a. So you are asking three people doing work decades apart > to cooperate:-)
In this case it is even not one of the three, but whoever decided to use \Umathcode in lua(la)latex.ini :) Regards, Khaled
