[REBOL] Re: Cunning use of [], () & {} in R# and in future? Rebol versions?
From: moliad:aei:ca at: 18-Oct-2003 11:22
> That looks like a new "range selection" dialect.
> I can imagine a range-pick function perhaps:
>
> range-pick: func [series dialect][...]
>
> blk: [a b c d e f g]
> range-pick blk [1 (3 5)]
> ;== [a c d e]
but now you can't leave the start and end infinite unless we do something like:
blk/[ 1 (3 *)]
I still prefer this type of syntax:
blk/[1 3:5]
it is clear, and uses the least typing each space defines a block to extract it
also looks most like spreadsheets syntax when specifying ranges .
we could even add the ~ or ! (not ) operator
blk/[ 5: ~10 ] ; everything starting at 5 but not the tenth element.
because the colon is already used, maybe we could simply use another character:
-MAx
