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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