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Is it possible to define in XSD the following scenario:
Parent element has an attribute that
is optional.
If the attribute is not
present in XML, at least one child
element must exists.
If the
attribute is present, there can be
zero or more child elements.
Example:
VALID
<parent externel-source="some_name" />
<parent externel-source="some_name">
<child>some value</child>
</parent>
<parent>
<child> some value</child>
</parent>
NOT VALID
<parent />
No i think not.