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From: "Simon St.Laurent" <simonstl@s...>
> No, the problem is that you don't know what the element names are in
> advance. Any elements are permitted, but there can be no duplication of
> names. I don't think the solution you proposed deals with that, unless
> I've missed something significant in XML Schema.
Oh, I get it. OK, then what about a variant of Ken's expression?
<pattern>
<rule context="properties/*">
<report test="previous-sibling::*[name(.)=name(current())]"
>There should not be duplicate properties</report>
</rule>
</pattern>
I made it previous-sibling because then the error is reported at the
subsequent
occurrence rather than at the first one. A different way to do it might be
<pattern>
<rule context="properties/*">
<assert test="count(../*[name(.)=name(current())])=1"
>There should not be duplicate properties</report>
</rule>
</pattern>
but you would get a repeated message for the original and the
duplicate and involve twice the comparisons as the former.
Cheers
Rick Jelliffe
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