On Fri, 2006-07-14 at 00:08 +0300, Yuval Kogman wrote:
Also, sometimes i am matching on behalf of my caller, this is very
common in dispatch algorithms, or things like tree visitors:
my @list = $tree.filter_children( $match ); # very generic and useful
It's really the fact that that's
Aaron Sherman schreef:
given $_ {
when $x {...}
}
or
$_ ~~ $x
Can that be written as .~~ $x?
--
Affijn, Ruud
Gewoon is een tijger.
On Fri, Jul 14, 2006 at 04:34:26PM +0200, Dr.Ruud wrote:
: Aaron Sherman schreef:
:
: given $_ {
: when $x {...}
: }
:
: or
:
: $_ ~~ $x
:
: Can that be written as .~~ $x?
No, but you might just possibly get away with writing:
.infix:~~($x)
assuming that the $_.foo($x) SMD
Larry Wall schreef:
Dr.Ruud:
Aaron Sherman:
$_ ~~ $x
Can that be written as .~~ $x?
No, but you might just possibly get away with writing:
.infix:~~($x)
assuming that the $_.foo($x) SMD eventually fails over to foo($_,$x)
MMD. But that doesn't seem to be much of an improvement
Perl would do anything other than an only slightly smart comparison
there, since that's obviously what the programmer had in mind.
However, S03 specs that ~~ will do a run-time dispatch based on the type
of that value at the time. Matching Arrays (@~~@) is just a
hyperoperated case of the same problem
On Thu, Jul 13, 2006 at 15:44:33 -0400, Aaron Sherman wrote:
Now, let's look at some of the good that ~~ does for us:
$a ~~ Some string # sameness
$a ~~ 5 # sameness
$a ~~ -{...} # test
$a ~~ /.../ # regex matching
That's great, and
