> I suspect this is the key--what is "mailcap"? Is it something local to your
> system? If so, then it is functionally identical to this
>
> -- SGML open mapping catalog --
> PUBLIC "+//IDN me.com//NOTATION Foo Architecture//EN"
> "/usr/bin/rasmol"
>
> And then configuring your XML processor to run the program as a result of
> resolving the mapping.
Just so. Mailcap files are stored locally, have a standard content,
and can be added to locally. They predate URLs, or the standard content
would probably be incorporated by reference instead.
-- John Cowan cowan@ccil.org e'osai ko sarji la lojban.