Arno Trautmann wrote:

> why is \if:w, but \if_meaning:NN, \if_cs_meaning:NN and \if_token_eq:NN?
> The syntax is the same in all cases – I would have expected :w after all.

I suspect that this is on the clean-up list one way or another.  Having
four functions for one primitive is clearly excessive.  I wonder if this
one falls into the same category as \exp_after:NN, where :w is more
accurate but :NN is true enough of the time to be more helpful.
Joseph Wright