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Re: RFC 231 (v1) Data: Multi-dimensional arrays/hashes and slices

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Ilya Zakharevich
September 26, 2000 15:04
Re: RFC 231 (v1) Data: Multi-dimensional arrays/hashes and slices
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On Mon, Sep 25, 2000 at 06:30:22PM -0400, Karl Glazebrook wrote:
> > Well, this shows that you entirely miss the problem of cryptocontexts.
> > Context is determined by the "environment" of the operation, not by
> > the operation.  Context is propagated:
> > 
> >   the-left-hand-side-of-assignment ---> the-right-hand-side-of-assignment
> so what is wrong with the statement '@y = 3*@x;' then ?

That other constructs *also* create an array context, in which the
behaviour of multiplication you propose is not appropriate.

> > Changing Perl in this respect will make one particular mode of
> > operation a tiny bit simpler, but (without major changes to
> > cryptocontexting - <PLUG> see for example my interview on
> > </PLUG>) will make life much harder in other modes of operation.

> I think major changes are what we aree talking about here.

I did not see any viable proposal on changing things in a major way.
To design such a change is a *major* work.  We need to keep a lot of
possible combinations with other features in mind, and understand all
the ramifications and desired/undesired interaction.  We need
insight.  We need to balance the tradeoffs.

I do not think we made *any* step in the correct direction yet.

> > Remember: do you do your system mainainance in Mathematica?  Why?
> > Remember that Wolfram *wanted* you to do this?  Perl5 is much better
> > balanced.  You are pulling the blanket to your side of the bed.
> I am not sure what point you are trying to make about Mathematica? I
> have read intevrviews with Woldfram ,he is clearky an egomanica and
> thinks everything should be an expression, but I am not sure he
> was arguing for system management in Mathematica.

I did not mean interviews.  10 years ago I read the manual.  It was
clearly there.


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