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

 


Help: OASIS Mailing Lists Help | MarkMail Help

 


 

   RE: Why doesn't XML have Bag?

[ Lists Home | Date Index | Thread Index ]
  • From: Leigh Dodds <ldodds@ingenta.com>
  • To: xml-dev@ic.ac.uk
  • Date: Fri, 26 Mar 1999 12:40:56 -0000

> Why doesn't XML support the notion of an unordered list of elements,
> i.e., a Bag?  Perhaps this is a limitation of DTD, not XML?  That is,
> DTDs do not support Bags, but XML has no such inherent limitation?  Does
> DCD support Bags?  /Roger

An XML newbie writes....

Isn't this an unordered list of elements?

<!ELEMENT BAG	(A?,B?,C?,D?)+>

Which appears to have order, but as elements are optional 
and the group is repeatable the ordering isn't enforced. Although 
the bag can't be empty. So, you could have...


<!ELEMENT BAG	(A?,B?,C?,D?)*>

Which allows an empty BAG

Or am I completely wrong?

Cheers,

L.

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)





 

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

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