Jan> "Stephen J. Turnbull" <turnbull(a)sk.tsukuba.ac.jp&gt; writes: Jan> I think one of the problems is that the current specifier Jan> implementation is slow. And probably can be greatly improved. But the functionality implemented there is enormous and inherently complex. And at least it's already implemented in C. I don't think implementing a central part of the user interface, namely Custom, in a way intended to shortcut that functionality is a good idea. If Custom is made to deal with specifiers directly, the current interface can be maintained, mostly intact. If Custom continues to avoid using specifiers' built-in functionality, that functionality will have to be implemented in Lisp, possibly requiring huge changes in the API and slower to boot. -- University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Institute of Policy and Planning Sciences Telfax: +81 (298) 53-5091 __________________________________________________________________________ __________________________________________________________________________ What are those two straight lines for? "Free software rules."