Why doesn't XML have Bag?

Paul Prescod paul at prescod.net
Fri Mar 26 18:25:52 GMT 1999

"Richard L. Goerwitz" wrote:
> Leigh Dodds wrote:
> > Isn't this an unordered list of elements?
> >
> > <!ELEMENT BAG   (A?,B?,C?,D?)*>
> > <!ELEMENT BAG   (A?,B?,C?,D?)+>
> These are equivalent (although the bottom one might be considered
> 'ambiguous' in SGML terms).  

Actually, it would not. Any particular content node list can only present
a single path through the content model.

 Paul Prescod  - ISOGEN Consulting Engineer speaking for only himself

"Perpetually obsolescing and thus losing all data and programs every 10
years (the current pattern) is no way to run an information economy or
a civilization." - Stewart Brand, founder of the Whole Earth Catalog

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at 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 at ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo at ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at ic.ac.uk)

More information about the Xml-dev mailing list