On Sep 22, 2005, at 3:08 AM, Luke Palmer wrote:
On 9/22/05, Carl Mäsak <[EMAIL PROTECTED]> wrote:
FWIW, to me it looks fairly intuitive. undef here means "don't alias
the element, just throw it away"... gaal joked about using _ instead
of undef. :)
Joked? Every other language that has pattern matching signatures that
I know of (that is, ML family and Prolog) uses _. Why should we break
that?
Because the way Carl has it is more consistent with Perl 5, from
whence most of our users will be coming? Because 'undef' has a nice
visual weight, while '_' can all too easily disappear? Because
throwing away values is something that we probably shouldn't make too
easy?
IMO, it's immediately obvious what it means.
Not IMO. _ in this context is content-free for me.
But, whatever. I'm sure it will end up being _ if this feature is
added.
--Dks
