Thomas Dumm wrote: > - If you say, that XXE does an *acceptable job* when all namepaces and their > prefixes are declared in the DTD > as attributes with a fixed default value for all the possible root elements > of a document, do you mean by that: > With the next release of XXE our documents will (should) be saved as valid > xml documents?
I don't know. It depends on your specific DTD. Current release uses method #1 to deal with DTDs making use of namespaces. Next release will use method #2, which is as flawed as method #1. Both methods work only for the simplest cases. Maybe method #2 works with *more* simple cases than method #1. That's why we'll make the change. Method #2 at work: --> The following document: --- <!DOCTYPE doc SYSTEM "dtd1.dtd"> <doc> <p>...<p> <mml:math>...</mml:math> <foreign> <svg:svg xmlns:svg="http://www.w3.org/2000/svg";>...</svg:svg> </foreign> </doc> --- where dtd1.dtd is: --- <!ELEMENT doc (p|mml:math|foreign)+> <!ATTLIST doc xmlns CDATA #FIXED "http://www.acme.com/ns"; xmlns:mml CDATA #FIXED "http://www.w3.org/1998/Math/MathML"; > <!ELEMENT p (#PCDATA)*> <!ELEMENT mml:math ...> <!ELEMENT foreign ANY> --- will be saved as: --- <!DOCTYPE doc SYSTEM "dtd1.dtd"> <doc xmlns="http://www.acme.com/ns"; xmlns:mml="http://www.w3.org/1998/Math/MathML";> <p>...<p> <mml:math>...</mml:math> <foreign> <ns:svg xmlns:ns="http://www.w3.org/2000/svg";>...</ns:svg> </foreign> </doc> --- Notice: [1] All the namespace prefix declarations found in the DTD are repeated on the doc root element. [2] mml:math has no namespace prefix declarations. [3] The prefix of the svg element is "ns" and not "svg". According to dtd1.dtd (except for the foreign element: ANY mean any *declared* element), the save file is valid. --> The following document: --- <!DOCTYPE doc SYSTEM "dtd2.dtd"> <doc> <p>...<p> <mml:math>...</mml:math> <foreign> <svg:svg xmlns:svg="http://www.w3.org/2000/svg";>...</svg:svg> </foreign> </doc> --- where dtd2.dtd is: --- <!ELEMENT doc (p|mml:math|foreign)+> <!ATTLIST doc xmlns CDATA #FIXED "http://www.acme.com/ns"; > <!ELEMENT p (#PCDATA)*> <!ELEMENT mml:math ...> <!ATTLIST xmlns:mml CDATA #FIXED "http://www.w3.org/1998/Math/MathML"; > <!ELEMENT foreign ANY> --- will also be saved as: --- <!DOCTYPE doc SYSTEM "dtd2.dtd"> <doc xmlns="http://www.acme.com/ns"; xmlns:mml="http://www.w3.org/1998/Math/MathML";> <p>...<p> <mml:math>...</mml:math> <foreign> <ns:svg xmlns:ns="http://www.w3.org/2000/svg";>...</ns:svg> </foreign> </doc> --- The above document is well-formed, 100% interchangeable with non-validating XML applications, but is not conforming to dtd2.dtd: according to the DTD which treats xmlns attributes as if they were normal attributes, doc cannot have a xmlns:mml attribute. > - Is it an easy "operation" to switch from a dtd to a W3C Schema for > instance using Altova XMLSpy dtd-schema-conversion. > If this is the case, we could *maintain* our dtd but convert the dtd for > *use with XMLmind* to a Schema. > If the conversion is more than just "blindly pressing one button", a schema > is (presently) not an option for us, as we have no W3C-schema-knowledge at > all. > We do not request you to do anything like this. Simply understand that we don't try to make work at all costs features which are fundamentally inconsistent. And validation by a DTD of xmlns attributes is a fundamentally inconsistent.
