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- From: Pavel Velikhov <pvelikho@cs.ucsd.edu>
- To: Sebastien Sahuc <ssahuc@imediation.com>
- Date: Tue, 21 Sep 1999 22:58:16 -0700
Sebastien Sahuc wrote:
>
> Hello,
>
> I have an element (<operations>) than can have different set of sub
> element. How can I describe it in DTD ?
>
> For example :
> <affiliate>
> <operations>
> <get/>
> <set/>
> </operations>
> </affiliate>
>
> and :
>
> <merchant>
> <operations>
> <signup/>
> </operations>
> </merchant>
>
> How can I express in DTD that affiliate operations in 'set' and 'get',
> and that merchant has only the 'signup' ?
>
You cannot. This is a fundamental problem with DTDs, you will have to
declare
operations as (get|set|signup). XSchema can get around this problem.
It is interesting to find out whether this is a serious problem for you,
or
something that you can get around/tolerate.
Pavel Velikhov
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