On Sat, 26 Oct 2002, Damian Conway wrote: : I suspect disjunctive superpositions will get a great deal : of use as sets, and so the ability to add an element to an : existing set: : : $set |= $new_element; : : might be appreciated. But it's no big thing.
Or maybe it is a big thing. People keep asking why they can't say $a[1][2] = 2; $a[1]{a} = "A"; # type error? Well, maybe they can now: $union = [1,2,4,8]; $union |= {a => "A", b => "B", c => "C"}; $union[2] # 4 $union{a} # "A" It's not just a union, of course. You can go on to say: $union |= {a => "ant", b => "bug", c => "catepilllar"}; $union{a} # "A" | "ant" That's all assuming that [] and {} (and (), for that matter) actually select only appropriate refs from the superposition of refs. Larry