Socat issues for XML

[John Cowan]

David Brownell wrote:

> As a networking guy I've got to wonder what the right number
> of caching mechanisms for URLs should be.  My gut reaction is
> that SYSTEM identifiers should be managed like any other part of
> the web, and proxy caches should be configured to know that
> some entries change virtually never.  That's in line with what
> John proposed (don't map URIs to URIs).

I think that the main benefit of URI->URI mappings (SYSTEM entries)
is for local (meta)stable caches informally created by users.  There is
no support for this in the HTTP world now, and if there were,
people often want to keep local copies of things accessible by
FTP (like RFCs).

> "Use the Web, Luke!"

Mostly yes. But most of us don't run proxy servers on our own
workstations.

> p.s. You'll notice that the com.sun.xml.parser.Resolver class in
>     http://developer.java.sun.com/developer/earlyAccess/xml/
> doesn't support any particular catalog syntax, and offers only a
> flat namespace for XML public IDs rather than expecting SGML's FPIs
> to apply.

Boo, hiss!

-- 
John Cowan	http://www.ccil.org/~cowan		cowan at ccil.org
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)

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