Re^2: chained hash slices?

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Re^3: chained hash slices? by moritz (Cardinal) on Jun 03, 2008 at 06:52 UTC
So it seems the OP wants chained slice-dereferencing braces to calculate a cross product. That would be very unlike anything perl does at the moment. I don't see how `@hash{@list}{@list}` could work without being horribly magical, inconsistent and counter-intuitive. `@hash{@list}` returns a list of hash references, not a hash. If you want to change that, you'd have to invent a syntax like `%hash{@list}`, which merges all the hash refs into a single hash, which can be sliced in turn. And then you'd have to find a good way to deal with duplicates in the new hash.	[reply] [d/l] [select]

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Re^3: chained hash slices?
by moritz (Cardinal) on Jun 03, 2008 at 06:52 UTC

I don't see how @hash{@list}{@list} could work without being horribly magical, inconsistent and counter-intuitive. @hash{@list} returns a list of hash references, not a hash.

If you want to change that, you'd have to invent a syntax like %hash{@list}, which merges all the hash refs into a single hash, which can be sliced in turn.

And then you'd have to find a good way to deal with duplicates in the new hash.

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