Why won't PSGML use http system identifiers?

[D. D. Brierton]

Is there some reason why PSGML has to have all the various DTDs, mod and ent
files on the local system, as opposed to downloading them via http when the
system identifier is a URL?

Basically, I'm trying to set up PSGML mode for XHTML 1.1 and frankly getting
hold of all the various modules is a complete nightmare, and I'm especially
concerned that it will prove hard to keep up-to-date. (BTW, does anyone know
if the W3C make available all their DTDs, etc. together with a suitable
catalog file available for downloadin a tarball or zip archive?

Best, Darren

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D. D. Brierton            darren@dzr-web.com           www.dzr-web.com
       Trying is the first step towards failure (Homer Simpson)
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