Re: DOCBOOK: Re: Advantages of XInclude?

[Bob Stayton <bobs at caldera dot com>]

On Wed, Nov 13, 2002 at 04:53:14AM -0500, Daniel Veillard wrote:
> On Wed, Nov 13, 2002 at 10:29:04AM +0100, Janning Vygen wrote:
> > Am Dienstag, 12. November 2002 21:39 schrieb Daniel Veillard:
> > >
> > >   For xmllint, libxml2 command line tool, use:
> > >
> > >     xmllint --xinclude --postvalid document.xml
> > 
> > It doesnt work because of xml:base attributes, or am i wrong? It 
> > complains:
> > 
> > "No declaration for attribute base of element sidebar"
> > 
> > you have to extend the docbook dtd as far as i know.
> 
>   Right, XInclude requires the addition of xml:base at the inclusion
> point (unless the document included and the main one share a base
> which makes it unecessary, like if they are in the same directory).
> I see no other way than adding xml:base  to the DocBook DTD (which would
> make sense to me but it's not my call.)

I was going to suggest using an XML catalog to locate XIncludes,
so that any xml:base could appear in the catalog file rather
than the document.  That works to resolve XIncludes with xsltproc.  

However, I can't seem to get xmllint to use XML catalogs.
The following xsltproc command works and reports all
the steps toward catalog resolution of the xinclude hrefs:

        XML_CATALOG_FILES=catalog.xml \
        XML_DEBUG_CATALOG=1 \
        xsltproc --catalogs --xinclude \
        docbook.xsl \
        includetest.xml

but this similar xmllint command does not:

        XMLCATALOG_FILES=catalog.xml \
        XML_DEBUG_CATALOG=1 \
        xmllint --catalogs --xinclude --noout --postvalid \
        includetest.xml

It just reports that the xinclude hrefs can't be found,
and does not indicate it is using the catalog.
My xmllint -version reports:

  xmllint: using libxml version 20425
   compiled with: FTP HTTP HTML C14N Catalog DocBook XPath XPointer XInclude Iconv Unicode Regexps Automata

Does xmllint only support SGML catalogs, or am
I missing something?

-- 

Bob Stayton                                 400 Encinal Street
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