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Re: Key/Keyref for Element names

From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
Date: 28 Feb 2003 12:31:31 +0000
To: Graham Mann <gmann@adobe.com>
Cc: xmlschema-dev@w3.org
Message-ID: <f5b8yw0wpr0.fsf@erasmus.inf.ed.ac.uk>

Graham Mann <gmann@adobe.com> writes:

> Hi,
> 
> I'm trying to make a Key that is the combination of an Elements Children's name and ID attribute.
> These will then be used by a Keyref that has two attributes to do the match.
> 
> The ID is no problem - but I can't seem to get a permitted XPath expression to return a childs' name as a string.
> 
> <xs:keyref name="Element_rRef" refer="Element_ID">
>         <xs:selector xpath=".//Pool/*"/>
>                 <xs:field xpath="@rRef"/>
>                 <xs:field xpath="@Name"/>
> </xs:keyref>
> This is OK 
> 
> <xs:key name="Element_ID">
>         <xs:selector xpath="./*"/>
>                 <xs:field xpath="@ID"/>
>                 <xs:field xpath="{name()}"/>
> </xs:key>

Sorry, the current version of XML Schema doesn't support that kind of
dependence.  It is somewhat unusual -- what does your data look like?

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                      Half-time member of W3C Team
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	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
		     URL: http://www.ltg.ed.ac.uk/~ht/
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Received on Friday, 28 February 2003 07:31:34 GMT

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