At 12:50 PM 8/24/00 -0500, Jonathan Scott Duff wrote:
> > How should the parser disambiguate
> >
> > my ($hash,%hash);
> > try { ... } catch $hash { ... }
> >
> > ? But if we require the comma, we know it's parseable, because map can
> do it.
>
>map is a slightly different animal because the block comes first.
No, I'm talking about the other form of map: "map EXPR, LIST" which
requires a comma.
> > But I initially wanted to do without the => ... unfortunately that would
> > require another keyword to handle the EXPR case and it didn't seem
> worth it.
>
>Not necessarily.
>
> catch { EXPR } { ... } # probably not going to work though
> catch (EXPR) { ... } # this will work
> catch do { EXPR } { ... } # this will work
Um, granted, but if you're going to need additional syntax around your EXPR
to disambiguate it then => seems as good as any and it has that neat "this
thing causes this thing" interpretation.
--
Peter Scott
Pacific Systems Design Technologies
