Re: SAX: New Idea for Entity Resolution

David Megginson (ak117@freenet.carleton.ca)
Wed, 15 Apr 1998 20:59:03 -0400


Alex Milowski writes:

> In effect, although the above interface is useful, it reduces
> interchange in that I can make a document with broken system
> identifiers work on my system. Essentially, I can make an
> *invalid* document valid!

You can do this in any case, though -- you can intercept URIs in the
system libraries (Java, for example, lets you register your own
schemes), or you can redirect them with a proxy server.

With URLs, file:// will almost always break on exchange, as will http:
system identifiers that refer to hostnames visible only within a
private network.

Your other points (which I omitted above) are well taken -- public
identifiers are a bit of a muddle right now, but since they're in XML
1.0, it makes sense to support them. The interface is not only for
public identifiers, however -- users can also remote URIs to
local/secure equivalents, and they can even screen out certain URIs if
necessary. I'd better copyright "XML-Nanny" before someone else
thinks of it.

All the best,

David

-- 
David Megginson                 ak117@freenet.carleton.ca
Microstar Software Ltd.         dmeggins@microstar.com
      http://home.sprynet.com/sprynet/dmeggins/

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