[Yaml-core] Fw: Re: Persistance of superpositions?

[Brian I. <in...@tt...>]

I think it would behoove us to make yaml the first working serialization
software in Perl6. Actually, I can't imagine people using anything else.

Cheers, Brian

----- Forwarded message from Damian Conway <da...@co...> -----

From: Damian Conway <da...@co...>
Date: Thu, 31 Oct 2002 09:57:12 +1100
To: "per...@pe..." <per...@pe...>
Subject: Re: Persistance of superpositions?
User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.1) Gecko/20020826

Brian Ingerson wrote:

>>Not quite. You also need to discriminate the *type* of the superposition:
> 
> 
> Oh right. I was thinking that C<any> and friends were operations, not types.
> Oops.
> 
> YAML type-URIs are made up of a type-family with an optional format:
> 
>     !domain.com/type#format
> 
> and:
> 
>     !int
> 
> is shorthand for:
> 
>     !yaml.org/int#dec
> 
> So I'm wondering if any|all|one|none can be formats of !super?

I guess so. But they're not really formats, so much as distinct types.


> And if so, should there be a default format?

No.


>     # !yaml.org/any
>     letters: !any [a, b, c]

Good.

>     
>     # !yaml.org/super#all
>     digits: !super#all
>       - 0
>       - 1
>       - 2

Bad.

> 
>     # !perl.yaml.org/one     (Perl specific types)
>     names: !perl/one [Brian, Ingy, Mr 
>                       Inline]         # (Yes, this dwims :)

Ugly. (And it would probably have to be !perl6/one)


>     # !perl.yaml.org/super-none  (longer type name, no format)
>     sane: !perl/super-none
>       - Larry
>       - Damian
>       - Brian
>     ...

Urk.


> It might be more forward thinking to allow any|all|one|none into the
> yaml.org type repository.

That's my view.

Danmian

----- End forwarded message -----