Re: [Vala] Suggestion: first {} and last {} operators in iteration-loops

["Daniel Borgmann" <daniel borgmann gmail com>]

On 9/10/07, Nigel Tao <nigel tao gnome gmail com> wrote:
> > /* With first{} and last{} */
> > static int main (string[] args) {
> >
> >         foreach (string arg in args) {
> >                     stdout.printf("%s is a string", arg);
> >                     first {
> >                          stdout.printf("%s is the first string", arg);
> >                     }
> >                     last {
> >                          stdout.printf("%s is the last string", arg);
> >                     }
> >            }
> >            return 0;
> > }
>
> With this syntax, is stdout.printf("%s is a string", arg); also run on
> the first and last elements?  What happens if args is 1 element long,
> so the first element is the last element - do all three printfs get
> called?

For this and other reasons a syntax like "iffirst" resp. "iflast"
which you can use anywhere in a loop would make more sense to me. That
should make the meaning obvious and be easy to read for everyone, so I
think it's not a bad idea if it could be implemented without too much
trouble.