[ZPT] METAL: attributes as slots

[Chris Withers]

Dieter Maurer wrote:
> 
> I feel, it would be good, if the definitions of the "use-macro"
> were effectively appended to the definition list of the
> "define-macro". This way, the "use" could override and
> extend the definitions provided by the macro definition.

Ah, I see where you're coming from.

So, rather than _replace_ the whole tag, use-macro and fill-slot would, in
effect, do a set union of the attributes with the ones in the use/fill part
taking precedence over the ones in the define part?

This sounds excellent, how do we make it happen?

cheers,

Chris