* Jiri Netolicky wrote in comp.text.xml:
>When I manualy replace "&data;" with the content of "log.xml"
>the validation "xmllint -valid -noout" is OK. But when I try
>to include "log.xml" as external entitity, validator reports
>error:
>
>log.xml:1: namespace error : Namespace prefix log4j on event is not defined

This seems a bug, Namespaces in XML 1.0 does not define well-formedness
for external parsed entities, and a namespace-unaware processor would,
when transforming the document to a standalone one as defined in XML
1.0, generate a namespace-well-formed document, so I don't really see a
reason for generating a namespace error here. I'd file a libxml2 bug.

>What is the right syntax to namespace defined in master document
>will be known during parsing external entity?

Well, declaring the prefix in the external entity would work and is
certainly a better practise, but I don't think it's clearly required.
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