[relaxng-user] Re: association of RELAX NG with a document

[Steinar Bang]

>>>>> Daniel Veillard <veillard at redhat.com>:

> Hum, that's a place where I would expect the XML Catalogs to take a
> role in abstracting the file paths. I would still recommend to use a
> canonical URL (is there one for relaxng.rnc one http://relaxng.org
> ?)  and have the catalogs remap to the actual file location. This
> was really important as we deployed DocBook processing tools on the
> various Linux distributions (and Solaris), I would like to be able
> to do the same as I'm starting to push Relax-NG schemas (DocBook,
> XHTML1, SVG are good candidate, as well as the RNG for RNG schema).
> It's less critical than when the reference ends up in the instance,
> but would still helps a lot for system setup, tools setup and
> documentation.

One way of doing this would be to have a similar approach to what's
done with XML Catalogs on the different linuxen.  Ie. have an
/etc/xml/locator file in addition to the /etc/xml/catalog files, and
have the RPMs, or deb packages, for different schemas, add and remove
entries from this file.

Of course, this would require a tool like your "xmlcatalog" program,
and/or a hierarchical structure like that adopted by the debian
SGML/XML policy
	http://people.debian.org/~mrj/xml-sgml-policy/debian-policy/

(...and it would also require all linux distros to adopt this format,
which sort of overlaps with XML Catalogs, just as they have all
started to use XML Catalogs...)