Re: [docbook-apps] local xref.role.attrib customization question?

["Bob Stayton" <bobs at sagehill dot net>]

I couldn't quite tell what you had tried, but something like this in your
DTD customization should work:

<!ENTITY % xref.role.attrib
     "role  (one|two|three)   #IMPLIED">

It will take precedence over the default declaration of xref.role.attrib,
which is only used in the ATTLIST for the xref element.

Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@sagehill.net


----- Original Message ----- 
From: "Carl E. Anderson" <cea@ncipher.com>
To: "MailingList Docbook-Apps" <docbook-apps@lists.oasis-open.org>
Sent: Friday, March 26, 2004 4:17 AM
Subject: [docbook-apps] local xref.role.attrib customization question?


>
> Hi all,
>
> I'd like to tack on a local customization of the role attributes for the
> xref element to my local copy of the docbook DTD.  Where I work, we have
> a few other local customizations that are defined in a "main.dtd" file
> (which is loaded before anything else) that then references the standard
> DocBook DTD for everything else (so that, of course, we can update
> DocBook as standard without losing our local tweaks).  I'm very
> inexperienced in these sort of things, so I thought I would solicit
> advice here :)
>
> Basically what I want to do is predefine the available values for the
> xref's role attribute without actually mucking up dbpoolx.mod.  I see
> from looking at that file that the xref attlist looks like:
>
> <!ENTITY % xref.attlist "INCLUDE">
> <![%xref.attlist;[
> <!ATTLIST xref
> endterm IDREF #IMPLIED
> %linkendreq.attrib; %common.attrib;
> %xref.role.attrib;
> %local.xref.attrib;
>  >
> <!--end of xref.attlist-->]]>
>
> ... and that xref.role.attribute looks (very dull) like:
>
> <!ENTITY % xref.role.attrib "%role.attrib;">
>
> and that role.attrib looks (also very dull) like:
>
> <!ENTITY % role.attrib
> "role CDATA #IMPLIED">
>
> So, I guess what I'm trying to figure out is whether I add something to
> prescribe values for xref.role.attrib to my local "main.dtd" file
> customizations that will override the lack of prescribed values in
> dbpoolx.mod but that doesn't actually require modifying dbpoolx.mod
> itself?  I've poked around with trying to define some entity that with
> my prescribed values for xref.role.attrib in my local "main.dtd" file,
> hoping they would override dbpoolx.mod, but though I don't seem to have
> broken anything, I also haven't achieved what I wanted ;)
>
> I suppose I should just go ahead and modify dbpoolx.mod and make a note
> so that I can reproduce the changes after future updates from standard
> DocBook -- but that seems inelegant!  Any thoughts?
>
> Cheers,
> Carl
>
> -- 
> Carl E. Anderson  mailto:cea@ncipher.com  http://www.ncipher.com/
> nCipher Corporation Ltd.   +44 1223 723690   Fax: +44 1223 723601
>
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>
>



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