[REBOL] Re: Reverse select?
From: tim-johnsons:web at: 7-Aug-2007 15:18
On Tuesday 07 August 2007, Kai Peters wrote:
> Given
>
> states: [ "AZ" "Arizona" "WY" "Wyoming" "FL" "Florida" ]
>
> How can I 'reverse select', i.e. find "WY" given "Wyoming" ?
>
> TIA,
> Kai
Hi Kai:
I use this:
before: func[ "Returns item *before* 'key in 'data, if found."
data[series!] key[any-type!] /local found][
either found: find data key[pick data (index? found) - 1][none]
]
NOTE: this code was slight altered from my own library, since I use
'def instead of 'fun (local variables generated automatically)
