On 21/03/2011, at 12:01 PM, Bruno Le Floch wrote: > I quickly grepped through xor, and it seems easy to change since the > most complicated thing that is done with \seq_elt:w and \seq_elt_end: > is > > \cs_set_nopar:Npn \seq_elt:w ##1\seq_elt_end: {##1,} > > which can be replaced by > > \cs_set_nopar:Npn \seq_elt:n ##1 {##1,} Or, much preferred from my point of view, to add some seq-transformation functions such as \seq_to_clist:N or \clist_set_from_seq:NN which seems to be what's happening above. In fact, this latter function is already present in l3candidates awaiting possible inclusion into l3seq. W