Will Robertson writes:
> On 07/09/2008, at 5:50 PM, Joseph Wright wrote:
>
> > Only the last one works as intended (by me). Is there a LaTeX3 way to
> > do this?
>
> Interesting.
> This is weird:
>
> \err_warn:nn{\temp~stuff~stuff}{}
>
> Only the second tilde causes a space.
why would that be weird?
in plain TeX
\errwarn{\temp stuff stuff}
and only
\errwarn{\temp\space stuff stuff}
in expl3 ~ is a space token and not an active char expanding to \space.
It is a bitof a pity that space tokens are so deep down within the TeX engine
behavior and that sometimes they get gobbled if explicit.
Interesting question if it would be possible to do ~ -> \space instead but my
guess is that this would break a lot of the current code