OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help



   Re: Linking DTD's

[ Lists Home | Date Index | Thread Index ]
  • From: Marcus Carr <mrc@allette.com.au>
  • To: "'xml-dev@ic.ac.uk'" <xml-dev@ic.ac.uk>
  • Date: Wed, 21 Apr 1999 08:33:52 +1000

"Campana, Sal" wrote:

> Is it possible to nest DTD's?  I would like to build a DTD from smaller
> DTD's...Is this possible?

Yes, though you might have an easier time getting your head around it if you
look at it from the other direction. Rather than building a DTD out of
blocks, you might think of it as replacing blocks in an existing structure,
which has the effect of enabling or disabling other blocks. We used this
approach when we did the Australian CALS suite of 27 DTDs - start with what
is essentially a library of declarations and relationships and then use the
DTDs to specify variations from that structure. As David M indicated, this is
a bear to manage and requires parameter entities to be used throughout,
though we overcame this by writing an application that generated normalised
DTDs for applications and humans.


Marcus Carr                      email:  mrc@allette.com.au
Allette Systems (Australia)      www:    http://www.allette.com.au
"Everything should be made as simple as possible, but not simpler."
       - Einstein

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To (un)subscribe, mailto:majordomo@ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo@ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@ic.ac.uk)

  • References:


News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 2001 XML.org. This site is hosted by OASIS