On Monday, February 10, 2003, at 06:26 PM, Joseph F. Ryan wrote:
What is the utility of the perl5 behavior:Deborah Ariel Pickett wrote:(Just going off on a tangent: Is it true that an array slice such as @array[4..8] is syntactically equivalent to this list (@array[4], @array[5], @array[6], @array[7], @array[8]) ? Are array slices always lists in Perl6?)I think so, unless its possible to do crazy things like reference part of an array. Maybe @array[4..8] is a list, and \@array[4..8] acts like an array. Or maybe \@array[4..8] is actually ( \@array[4], \@array[5], \@array[6], \@array[7], \@array[8]), like it is in perl 5. If it keeps that behaivor, then @array[4..8] is always a list.
\($a,$b,$c)
meaning
(\$a, \$b, \$c)
Do people really do that? I must say, given that it looks *so obviously* like it instead means [$a,$b,$c], I wonder if attempting to take a reference to a list should be a compile-time error.
Note that this is still OK:
\($a) # same as \$a
because as previously discussed, it's the commas making the list, not the parens. But \($a,$b,$c) seems like a bug waiting to happen. I don't use it. Can someone give an example of an actual, proper, use?
What joy I'll have explaining that one to my students . . .
Groan. Yeah. I feel your pain. :-|
MikeL
