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Use of non-schema namespaced attributes on appinfo

From: Jeff Young <jey@adobe.com>
Date: Tue, 13 Jan 2009 14:01:33 +0000
Message-Id: <D7A2241B-5F29-4538-BA4F-F93EC18763DC@adobe.com>
To: "www-xml-schema-comments@w3.org" <www-xml-schema-comments@w3.org>
I have an application-specific attribute that I need to store on a  
schema component.  The XMLSchema spec states that non-schema  
namespaced attributes are allowed on the <appinfo> tag, but several  
books on the subject suggest that this isn’t the case.

So, for the case where I want to store foo:myAttr on a schema  
component, should I use:

       <xs:appinfo xmlns:foo=”http://whatever” foo:myAttr=”someValue”/>

or the more verbose:

          <foo:myHolder xmlns:foo=”http://whatever” myAttr=”someValue”/>

I prefer the former (which doesn’t require the somewhat artificial  
construction of a holder element), but I’d rather do the latter if it  
represents the intended (or universally practiced) usage.

-- Jeff Young
Adobe Systems, Inc
Received on Wednesday, 14 January 2009 17:47:44 UTC

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