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- From: "Betty L. Harvey" <harvey@eccnet.eccnet.com>
- To: "Schoedl, Andreas" <Andreas.Schoedl@softwareag.com>
- Date: Wed, 31 May 2000 11:21:26 -1000 (HST)
Adreas:
Yes, it is allowed. This is really the only way in a
DTD to control the exact number of subordinate elements. The
following would also be correct:
<!ELEMENT C (A, A, A+)>
This would ensure that you had to have 3 A's but you
could have more.
Hope this helps.
Betty
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Betty Harvey | Phone: 410-787-9200 FAX: 9830
Electronic Commerce Connection, Inc. |
harvey@eccnet.com | Washington,DC SGML/XML Users Grp
URL: http://www.eccnet.com | http://www.eccnet.com/xmlug/
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On Wed, 31 May 2000, Schoedl, Andreas wrote:
> Hi, all!
>
> After searching hours and days I finally give up on what appears to be a
> newbie question:
>
> <!ELEMENT C (A,A)>, is such content model allowed? I ask, because I can
> nowhere find the statement that it is forbidden. But I strongly feel that it
> should be!
>
> Whereas <!ELEMENT C (A?,A)> seems to be excluded (XML REC 3.2.1), alas not
> _very_ explicitly.
>
> Is there a document where such cases are explained?
>
> Any help appreciated.
>
> Kind regards,
>
> Andreas
>
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