You can do something like this:
: stats>item-info ( stats -- item-info)
{ 0 1 3 } swap nths \ item-info slots>tuple ;
Doug
On Tue, Aug 16, 2011 at 4:57 PM, Larry Coleman
<all.are.wond...@gmail.com> wrote:
> This works, but I'm pretty sure it's not idiomatic factor, and I'll
> need to do something similar at least twice more, so there must be a
> better way:
>
> TUPLE: item-info longitude latitude speed ;
>
> C: <item-info> item-info
>
> : stats>item-info ( stats -- item-info )
> {
> [ 0 swap nth ]
> [ 1 swap nth ]
> [ 3 swap nth ]
> } cleave <item-info> ;
>
> So what is the idiomatic way to get a items out of an array based on a
> sequence of indexes?
>
> Thanks in advance,
>
> Larry Coleman
>
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