• From: Pavel Velikhov <pvelikho@c...>
• To: Sebastien Sahuc <ssahuc@i...>
• 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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