"Rob Dixon" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Hi Bryan
>
> "Bryan Harris" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> >
> > I need to slice an array such that it gives me the first through the 4th
> to
> > last in a variable length array. I thought I could just do:
> >
> > @comments[0..-4]
> >
> > but Perl seems to choke on this. It's perfectly okay with a slice using
> two
> > negative #s:
> >
> > @comments[-2..-4]
> >
> > Anyone know why it doesn't like 0..-4?
>
> You're using the range operator '..' to generate a list of indices for the
> slice. This operator always counts upwards, so if the first operand is
> greater than the second it will return an empty list. -2 .. -4 is the
same
> as (-2, -3, -4), but 0 .. -4 is ().
What nonsense!
-2 .. -4 is ()
-4 .. -2 is (-4, -3, -2)
/R
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