> How will all this fit into the > programming environment of Latex3? Will xparse and friends be rewritten > with \type_name:args. In fact what is the status of this aspect of > Latex3? Open question. We were not exactly swamped with responses to that \type_name:args code. We found it useful (most of the time:-) but if it looking so strange is going to hurt acceptance of any new system it may not be worth it, or it may (don't know:-). On the other hand the template interface is also aimed making things look different, but to a different target audience, someone who isn't a tex programmer (necessarily) and they probably don't like the existing interface, so in that case there are only advantages in having a `new look'. > One feature which I think would be nice is a \newargumenttype macro, > analogous to \newcolumntype of the array package. What new sorts of argument would you want. (this is a real question so I understand the functionality you are asking for) > I wait with anticipation the template packages &c. soon, although I have to write a talk on MathML before the UKTEX meeting on Sunday/Monday:-) David