The expression fails if the argument has duplicate items. e.g.
((+.|.)@={"0 1 ' '&,.)'aabbb'
|length error
| ((+.|.)@={"0 1' '&,.)'aabbb'
On Mon, Dec 10, 2012 at 10:18 AM, bob therriault <bobtherria...@mac.com>wrote:
> That is lovely Arie,
>
> It is that kind of elegance that I was chasing with my rougher attempts.
>
> Using the (+.|.) hook simplifies (|.+.]) precisely and the {" 0 1
> combined with ' '&,. means that the selection of the string becomes a
> choice in each row of displaying either the corresponding element of the
> string or a blank.
>
> Cheers, bob
>
> On 2012-12-10, at 1:11 AM, Aai wrote:
>
> > ((+.|.)@={"0 1 ' '&,.)'abcde'
>
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