DOCBOOK-APPS: Jade/DSSSL vs. DocBook XML V4.1.2

[Lane Stevens <lane at cycletime dot com>]

I seem to be caught between two errors.  Solving one causes the other.

I have installed the nwalsh modular stylesheets v 1.54. and performed all of
the tests in the installation instructions successfully.  Next I created a
simple DocBook XML v4.1.2 document that validates with nsgmls.

If the following command is executed with SGMLDECL=xml.dcl, it fails on the
lower-case "element" and "attlist" declaration types in style-sheet.dtd (By
the way, changing the case in that file eliminates those errors but leads to
others. Even so, that feels like the wrong approach to solving this problem.).

jade -t sgml -d /my/path/html/docbook.dsl myfile.xml

If I remove SGMLDECL=xml.dcl from the catalog, then I get a series of errors
related to the fact that X20AC (etc.) is not a function (it appears to
follow my instructions and not load xml.dcl).

The environment is RedHat Linux 6.2.

Any/All help regarding this problem will be greatly appreciated.  Also, 
recommendations on a set of tools/configuration for creation of DocBook 
XML (I'll do SGML if that makes more sense) that can be rendered as HTML, 
PDF or other reasonable printed representation would be helpful.  I 
thought I was further down the DSSSL road, so that is why I haven't 
pursued the XSL route.

Thanks,
Lane.
-- 
Lane Stevens
Terrapin Technologies, Inc.
http://www.cycletime.com