parsing

I'm futzing about with james Clark's sp (his API) and Norm Walsh's
DocBook in xml, with the intent, sooner or later, of using XSLT to do
markup conversion.

My first step, getting sp to parse a docbook marked up document, isn't
working, because nsgmls is outputting reams of errors like:

nsgmls:/usr/share/sgml/docbook.xml/dbpoolx.mod:653:34:E:
omitted tag minimization parameter can be omitted only if
 "OMITTAG NO" is specified on the SGML declaration

[I added cariage returns to aid readability]

It's my understanding that OMITTAGS doesn't really apply to xml, because
xml's rules are set ... and there isn't any sgml declaration in an xml
document where I could place the OMITTAGS thing anyhow.  I was suprised,
in Norm's xml dtd, there isn't even an <?xml ... ?> declaration.

Am I right here?  Is this a bug in my understanding, or maybe a feature
that must be added to sp?  Please help, I'm learning here.

----------------------------+-----------------------------------------------
Chuck Robey                 | Interests include any kind of voice or data 
chuckr@xxxxxxxxxxxxxx       | communications topic, C programming, and Unix.
213 Lakeside Drive Apt T-1  |
Greenbelt, MD 20770         | I run picnic and jaunt, both FreeBSD-current.
(301) 220-2114              | 
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