>>>>> "rl" == rob levy <[email protected]> writes:
rl> For reasons I think MJD explains the best ( rl> http://lists.warhead.org.uk/ pipermail/iwe/2005-July/000130.html ) rl> Perl's macros will never be quite nearly as good as CL's defmacro rl> or even Scheme's hygenic macros. So obviously Perl's syntax is rl> way too complex for Lisp-quality metaprogramming, but I have heard rl> that somehow Perl 6 macros avoid the syntax level and operate rl> directly on the underlying representation. I still haven't seen rl> any examples of what this actually looks like, but I'm looking rl> forward to it. At the MIT talk I almost asked a question "can you rl> talk a little about the macro system" but it seemed like kind of rl> an unrealistic request for the QA section so I chickened out. perl6 will have two macro styles, text and code. text macros will be replaced and then fully parsed as source code. code macros will instead insert the precompiled macro code (interal representation) into the parse tree. so you can get plenty of power in either and pretty much do what you want. of course i can be wrong in my description or in the ability of these macros to do what lisp's (and its ilk) can do. uri -- Uri Guttman ------ [email protected] -------- http://www.sysarch.com -- ----- Perl Code Review , Architecture, Development, Training, Support ------ --------- Free Perl Training --- http://perlhunter.com/college.html --------- --------- Gourmet Hot Cocoa Mix ---- http://bestfriendscocoa.com --------- _______________________________________________ Boston-pm mailing list [email protected] http://mail.pm.org/mailman/listinfo/boston-pm
