On Fri, Apr 24, 2009 at 7:33 AM, Will Robertson <[log in to unmask]> wrote:

> The tendency seems to be not to change the internals of LaTeX2e, but I'd be
> happy to replace the current implementation of \in@ with a more correct
> version. What do others think? If others are amenable to the change, would
> you be willing to write the new version?

Unless I am completely mistaken, writing a new version is a simple
task: just make the second argument start with something that should
not appear in input, such as a the nil marker.

-- 
Morten