On Sun, Sep 7, 2008 at 10:32 PM, Joseph Wright <[log in to unmask]> wrote: > I was rather expecting \c_space_token to save the day, but it didn't. > Hence my confusion: \space isn't a LaTeX3 name. Correct. \c_space_token is an implicit space token (because it is assigned with \let:NN) and a explicit space char is needed. -- Morten