Re: [Yaml-core] yar

[Brian I. <briani@ActiveState.com>]

"Clark C . Evans" wrote:
> 
> On Sun, Jun 03, 2001 at 05:15:56PM +0200, Oren Ben-Kiki wrote:
> | I had this notion about the syntactical form of class-as-color (or any
> | color). What if one allows the first key pair to appear immediately after
> | the '%':
> |
> |     delivery: % : 10-JAN-2001
> |         # : date
> |
> | OK, the class has to appear on a separate line, but that's not *too* bad,
> | textually. Especially after removing some whitespace:
> |
> |     delivery:%: 10-JAN-2001
> |         #: date
> 
> If we want to "abbreviate", why not just allow
> the single line form...
> 
>   delivery: !date 10-JAN-2001
> 
> to be an abbreviation for ...
> 
>   delivery: %
>      !  : date
>      "" : 10-JAN-2001
> 

I wrote my last email suggesting "inline classes" without even seeing
this. We must be on a similar wave length. :)

However, be aware that we are suggesting two different things. 

You are suggessting an abbreviation of coloring.

I am suggesting a "lightweight" semantic for Inline classes. One that
would not round trip between Perl and Java, but would round trip between
Perl and Perl. It's a disposable class I guess, at least from the YAML
side. Something like this will be vital to allow scripting languages (or
at least Perl) to use objects in their normal, lightweight way.

FYI, In Perl an object is just any old data structure with a name
attached by the bless() function. It can access it's data in through
predefined methods or not. It actually turns out to be a very compelling
OO model. But that's a different discussion.

Now Perl can also benefit from a heavyweight colored YAML object. For
instance, to redefine the emitter sort order, or to ensure that the
emmitter uses the correct encoding. Or for round tripping data to Java.

But the bottom line is that if you want to keep Perl interested (and me
too) you *need* a lightweight semantic option. 

BTW, If the Perl implementation is done right, it will make YAML so much
more appealling tham XML.

Cheers, Brian

-- 
perl -le 'use Inline C=>q{SV*JAxH(char*x){return newSVpvf
("Just Another %s Hacker",x);}};print JAxH+Perl'