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   RE: Why doesn't XML have Bag?

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  • From: Shekhar Kshirsagar <skshirsa@nortelnetworks.com>
  • To: Leigh Dodds <ldodds@ingenta.com>, xml-dev@ic.ac.uk
  • Date: Fri, 26 Mar 1999 08:24:27 -0500

Well, what about <!ELEMENT BAG ANY>. That gives a bag of anything.

Or am I misinterpreting the spec?


Thanks,
Shekhar Kshirsagar


At 12:40 PM 3/26/99 -0000, Leigh Dodds wrote:
>> 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.
>
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