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From giacomo <giac...@apache.org>
Subject Re: Resolution/validation woes
Date Thu, 03 Jan 2002 09:01:45 GMT
On Thu, 3 Jan 2002, David Crossley wrote:

> Hi Gianugo, i had the beginnings of a new Cocoon Sample
> to show how to use the Simplified DocBook DTD. So i have
> now committed that to CVS to give you a kick-start.

BTW: Why should we stick with the Simplified DocBook DTD? I'd rather
recommend using the full DocBook DTD (as Avalon is already doing)

Giacomo

>
> You will need to add a "local-catalog" parameter to your
> webapp/cocoon.xconf (see attached diff).
>
> You will also need a corresponding "OASIS catalog" file to
> define the location of the sdocbook.dtd ... see the doco at
> http://xml.apache.org/cocoon/userdocs/concepts/catalog.html#config
>
> I have not yet hooked up the new Sample because it still
> needs some more work to explain this local configuration.
> However, it should be enough to get you going at
> http://localhost:8080/cocoon/sdocbook-demo
> --David
>
> David Crossley wrote:
> > Excuse me, but RTFM must apply here :-)
> > This is the prime example of why we need the
> > Catalog Entity Resolver for Cocoon, and why we
> > have been working hard to get it implemented.
> > Please see the Cocoon docs at
> > http://xml.apache.org/cocoon/userdocs/concepts/catalog.html
> >
> > It even provides an example of how to configure it
> > for the Simplified DocBook DTD.
> >
> > As Berin says, the parser needs to find the DTD whether
> > it it set to do validation or not. Hacking the XML source
> > to remove the DTD declaration is NOT the way to go.
> > We have the perfect solution already available in Cocoon.
> > enjoy, David Crossley
> >
> > Gianugo Rabellino wrote:
> > > Berin Loritsch wrote:
> > >  Gianugo Rabellino wrote:
> > > >> I always try to avoid validation, but this time I have to: while
> > > >> playing with a pretty cool DocBook add-on for M$ Word (you might want
> > > >> to check it out at http://www.yawcpro.com: it's closed-source yet
it
> > > >> has a free that does all that is needed to me) I'm facing the fact
> > > >> that the software saves its documents with a
> > > >>
> > > >> <!DOCTYPE article SYSTEM "sdocbook.dtd">
> > > >>
> > > >> directive. This caused my Cocoon to fail with a
> > > >> ResourceNotFoundException on the missing DTD file.
> > >
> > > > This has nothing to do with Validation, or a Cocoon setting.  This has
> > > > everything to do with Xerces, or whatever your parser is.  The fact is
> > > > that Xerces will read the DTD if the DocType header is placed in the
> > > > document everytime.  It does this for entity resolution in your documents.
> > >
> > > OK, that's exactly what I knew. But I also thought that the parser was
> > > not meant to choke and give up parsing if (in non-validating mode) the
> > > DTD could not be found. This is the behaviour I expect and that I
> > > strongly recall I encountered before, am I that wrong?
> > >
> > > > If you choose not to perform validation (the default), the DTD is still
> > > > read, although only the entity declarations are used.  Now, there *might*
> > > > be something in the way we create Parser objects that we need to change
> > > > so that they use the EntityResolver (i.e. catalog) for us.
> > >
> > > That might help.
> > >
> > > > If you want to completely ignore all DTD/Schema directives, do not supply
> > > > a DocType header!
> > >
> > > OK, now we have a chicken and egg problem. I would gladly use a
> > > stylesheet to strip the DTD part using the xsl:copy-of trick, but
> > > actually I can't because my document isn't parsed so it cannot be
> > > transformed :) This sounds pretty weird to me, I'm not going to resort
> > > to String.replace() for this. I have to find a way out, and I strongly
> > > suspect that I'm not the only one...
> > >
> > > I'll check out the docs (actually I already had a look at the Xerces
> > > FAQs, and it seems that the only occasion when an error is thrown is
> > > with a DTD declared but not found in validating mode). Thanks for now.
> > >
> > > Ciao,
> > >
> > > --
> > > Gianugo
>
>


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