A question on the interpretation of the XML specification and the correctness of
Xerces C++ 1.6.0.
Consider the following XML document:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mydoc SYSTEM "mydoc.dtd">
<mydoc myattr="cheese"/>
and the associated mydoc.dtd DTD:
<!ELEMENT mydoc EMPTY>
<!ATTLIST mydoc myattr ( CDATA ) #REQUIRED>
Is the XML document valid? Xerces C++ 1.6.0 says no. Some other XML parsers
(e.g. xmlspy) say yes.
Xerces appears to consider the "CDATA" in the DTD to be an uninterpreted
literal. Some other parsers interpret it to mean "any valid name token", thus
considering myattr to be an enumeration of anything at all, including nothing?!
My gut feeling, based on a shallow reading of the XML spec, is that Xerces is
right. Can anyone with a deeper understanding of the XML standard confirm?
I'm interested in this oddity because the FIX 4.3v1.0 DTD
(http://www.fixprotocol.org/cgi-bin/Spec.cgi?menu=4), an open standard, has some
definitions that effectively reduce to the simplified examples above.
Regards,
--MikeL
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