HaloO Larry,
you wrote:
: >we need only provide an alternate comparison to
: >the constructor, and the set itself needn't remember it. On the
: >other hand, hashes behaving like mutable sets need to remember their
: >comparison operator if it is not the default.
:
: The slot accessor paradigma
On Fri, Aug 12, 2005 at 04:30:09PM +0200, TSa wrote:
: HaloO,
:
: Larry Wall wrote:
: >[..] but since sets are
: >immutable values,
:
: Does that imply they travel in $vars and are a subtype
: of Value?
I believe so.
: Is Undef of Set the Set::Empty?
I don't think so. The empty set should pro
HaloO,
Larry Wall wrote:
[..] but since sets are
immutable values,
Does that imply they travel in $vars and are a subtype
of Value? Is Undef of Set the Set::Empty? Is Set::Empty false?
we need only provide an alternate comparison to
the constructor, and the set itself needn't remember it. O
On Thu, Aug 11, 2005 at 08:25:23PM -0700, Mark A. Biggar wrote:
: Mark A. Biggar wrote:
: >Small issue, what comparison operator do you use to determine
: >duplicates? For example (possibly pathological case):
: >
: >(undef but true) (+) (undef but false)
:
: Actually, I'm going to make a stab a
Mark A. Biggar wrote:
Luke Palmer wrote:
On 8/10/05, Dave Rolsky <[EMAIL PROTECTED]> wrote:
[changing the subject line for the benefit of the summarizer ...]
On Wed, 10 Aug 2005, Larry Wall wrote:
And now some people will begin to wonder how ugly set values will look.
We should also tell
Luke Palmer wrote:
On 8/10/05, Dave Rolsky <[EMAIL PROTECTED]> wrote:
[changing the subject line for the benefit of the summarizer ...]
On Wed, 10 Aug 2005, Larry Wall wrote:
And now some people will begin to wonder how ugly set values will look.
We should also tell them that lists (and pos
On 8/10/05, Dave Rolsky <[EMAIL PROTECTED]> wrote:
> [changing the subject line for the benefit of the summarizer ...]
>
> On Wed, 10 Aug 2005, Larry Wall wrote:
>
> > And now some people will begin to wonder how ugly set values will look.
> > We should also tell them that lists (and possibly any
On 8/10/05, Flavio S. Glock <[EMAIL PROTECTED]> wrote:
> I wonder if infinite sets (recurrences) will be supported - then I'll
> move all(ext/Recurrence, ext/Span, ext/Set-Infinite) to
> Perl6::Container::Set::Ordered - cool.
Note "there is now a Set role". Emphasis on role. There will be a
fin
On 8/10/05, Sam Vilain <[EMAIL PROTECTED]> wrote:
> On Wed, 2005-08-10 at 21:00 -0400, Joe Gottman wrote:
> >Will there be an operator for symmetric difference? I nominate (^).
>
> That makes sense, although bear in mind that the existing Set module for
> Perl 6, and the Set::Scalar and Set::
On Wed, 2005-08-10 at 21:00 -0400, Joe Gottman wrote:
>Will there be an operator for symmetric difference? I nominate (^).
That makes sense, although bear in mind that the existing Set module for
Perl 6, and the Set::Scalar and Set::Object modules for Perl 5 use % for
this (largely due to ove
> -Original Message-
> From: Luke Palmer [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, August 10, 2005 11:53 AM
> To: TSa
> Cc: Perl6 Language List
> Subject: Re: $object.meta.isa(?) redux
>
>
> A new development in perl 6 land that will make some folks very h
I wonder if infinite sets (recurrences) will be supported - then I'll
move all(ext/Recurrence, ext/Span, ext/Set-Infinite) to
Perl6::Container::Set::Ordered - cool.
- Flavio S. Glock
2005/8/10, Dave Whipp <[EMAIL PROTECTED]>:
> Luke Palmer wrote:
>
> > A new development in perl 6 land that will
[changing the subject line for the benefit of the summarizer ...]
On Wed, 10 Aug 2005, Larry Wall wrote:
And now some people will begin to wonder how ugly set values will look.
We should also tell them that lists (and possibly any-junctions)
promote to sets in set context, so that the usual way
On Wed, 10 Aug 2005, Luke Palmer wrote:
A new development in perl 6 land that will make some folks very happy.
There is now a Set role. Among its operations are (including
parentheses):
(+) Union
(*) Intersection
(-) Difference
(<=) Subset
(<) Proper subset
(>=) Sup
On Tue, Aug 09, 2005 at 10:55:05PM -0400, Stevan Little wrote:
: >So why not just use "describes"? Then maybe Object.isa(Foo) delegates
: >to $obj.meta.describes(Foo).
:
: I like that, but is it appropriate for subclasses as well?
Well, I suppose we could hedge it as part of a collaboration:
On Wed, Aug 10, 2005 at 11:24:02AM -0700, Dave Whipp wrote:
: Do Sets get a sigil?
Probably not. unicode
: I'd guess that % would be appropriate, because a
: hash is simply "Set of Pair" where the membership equivalence class is
: simply $^member.key. What syntax is used to associate the equiv
Luke Palmer wrote:
A new development in perl 6 land that will make some folks very happy.
There is now a Set role. Among its operations are (including
parentheses):
(+) Union
(*) Intersection
(-) Difference
(<=) Subset
(<) Proper subset
(>=) Superset
(>)
On Wed, Aug 10, 2005 at 03:53:00PM +, Luke Palmer wrote:
: A new development in perl 6 land that will make some folks very happy.
: There is now a Set role. Among its operations are (including
: parentheses):
:
: (+) Union
: (*) Intersection
: (-) Difference
: (<=) Sub
On 8/10/05, TSa <[EMAIL PROTECTED]> wrote:
> HaloO,
>
> Luke Palmer wrote:
> > On 8/9/05, Larry Wall <[EMAIL PROTECTED]> wrote:
> >
> >>So why not just use "describes"? Then maybe Object.isa(Foo) delegates
> >>to $obj.meta.describes(Foo).
> >
> >
> > Hmm. We have a similar problem with the new c
HaloO,
Luke Palmer wrote:
On 8/9/05, Larry Wall <[EMAIL PROTECTED]> wrote:
So why not just use "describes"? Then maybe Object.isa(Foo) delegates
to $obj.meta.describes(Foo).
Hmm. We have a similar problem with the new class-set notation.
These two things:
Did I miss something? What is
On 8/9/05, Larry Wall <[EMAIL PROTECTED]> wrote:
> So why not just use "describes"? Then maybe Object.isa(Foo) delegates
> to $obj.meta.describes(Foo).
Hmm. We have a similar problem with the new class-set notation.
These two things:
$a.does(Foo);
Bar.does(Foo);
Mean two different thi
Larry,
On Aug 9, 2005, at 6:18 PM, Larry Wall wrote:
: Personally I am not a fan of the 'is_a' name, I just did it one day,
: and it sort of stuck.
Well, hey, I'm not a fan of the "isa" name, so I guess we're even.
fair enough :)
: But I do think we need to find a way to
: differentiate bet
On Tue, Aug 09, 2005 at 05:08:43PM -0400, Stevan Little wrote:
: Howdy,
:
: I wanted to make sure this question had a chance to get addressed, so I
: am seperating it from the other thread which has digressed into the
: depths of the metamodel (much to my delight too).
:
: So..., as described i
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