Re: Classification syntax [Was: Renaming grep]

[Flavio S. Glock]

2005/11/18, Brent 'Dax' Royal-Gordon <[EMAIL PROTECTED]>:
> Larry Wall <[EMAIL PROTECTED]> wrote:
> > The name is relatively unimportant in the overall scheme of things.
> > I'm more worried about the fact that it's difficult to partition a
> > list into multiple lists in one pass without declaring temp arrays.
>
> Didn't the list agree long ago on a `part` builtin?  I certainly wrote
> List::Part based on that discussion...

In E06:

   ($cats, $chattels) = part &is_feline, @animals;

How about a "switch" syntax instead?

    part @animals {
        when .is_feline() { @cats }
        default { @chattels }
    }

In the more general case:

    part @a {
        when $_ < 10 { @a }
        when $_ < 20 { @b }
        when $_ < 30 { @c }
        @d
    };

and:

    @a.part:{
        when $_ < 10 { @a }
        when $_ < 20 { @b }
        when $_ < 30 { @c }
        @d
    };

- Flavio S. Glock