RE: [xml-dev] XML schema: how to define choice between value as an attribute and value as element text

From
Michael Kay <>
To
'Patrik Beno' <>, 'XML Developers List' <>
Date
2004-06-12T22:54:31Z
ID
<20040612225406.ECYS19746.mta01-svc.ntlworld.com@Turtle>
Thread
RE: [xml-dev] XML schema: how to define choice between value as an attribute and value as element text
Unless there's some trick I'm not aware of, you can't define such a
constraint in XML Schema.

Michael Kay 

> -----Original Message-----
> From: Patrik Beno [mailto:] 
> Sent: 12 June 2004 20:49
> To: XML Developers List
> Subject: [xml-dev] XML schema: how to define choice between 
> value as an attribute and value as element text
> 
> 
> Hey there :-)
> 
> 
> Suppose I have simple element <PersonName>.
> 
> I want to define restriction that data (person name itself) may be
> defined either in "value" attribute or as element text.
> 
> Meaning - either this way:
> 
>   <PersonName value="John Doe"/>
> 
> or this way:
> 
>   <PersonName> John Doe </PersonName>
> 
> But this is forbidden:
> 
>   <PersonName value="John Doe"> Jane Smith <PersonName>
> 
> I have been reading spec, tutorials, references, I have
> been gooooooooogling for hours but I can't find out how to do this or
> even if it is feasible at all.
> 
> Please - can this restriction be defined using XML schema?
> If so, how? Can anyone provide an example?
> 
> thnx
> 
> -- 
> Patrik Beno
> mailto:
> 
> 
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