Well, I don't think it's possible, actually. There's a flattening list context at the beginning (implying a sugary drink from 7 eleven), followed by a code block. But, as we know, slurpy arrays can only come at the end of positional parameters.
Right, which is why I couldn't get my head around it. But EX6 says:
"an important goal of Perl 6 is to make the language powerful enough to natively implement all its own built-ins"
Does "built-ins" just mean "subs" like split(), or does it also include control structures like if() and for()?
But, assuming that is possible, here's C<for> in its entirety:
sub for ([EMAIL PROTECTED], &block) { while @list { block( [EMAIL PROTECTED](0, &block.arity) ); } }
Maybe for() does some magic with "is parsed" and the various Perl 6 grammar rule regexes?
-John
