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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Which elements can be root elements? (corrected)
(Cut and paste answer, corrected for prefixes)
You can use the Schematron open source schema language, which is
specifically aimed for the 1001 non-regular constraints that real data
requires.
Off the top of my head, the appropriate schema would look something
like
this:
<sch:schema xmlns:sch="http://www.ascc.net/xml/schematron">
<sch:pattern>
<sch:rule context="/*">
<sch:assert test="/X">The document should start with an X
element.</sch:assert>
</sch:rule>
</sch:pattern>
</sch:schema>
Schematron home page at
http://www.ascc.net/xml/resource/schematron/schematron.html
Rick Jelliffe
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