I still have a problem with the use of a xslt stylesheet and a
xml document that include other xml subdocuments declared as
unparsed entity.
In the book "Structuring XML Documents" is recommended that
when you want to include a subdocuments in a xml document you
should the following scheme
- First, declare a notantio for the XML documents
<!NOTATION XML SYSTEM "http://www.w3.org/XML/";>
- Second, declare an NDATA entity for each subdocuments
<!ENTITY chap01 SYSTEM "chap01.xml" NDATA XML>
<!ENTITY chap02 SYSTEM "chap02.xml" NDATA XML>
- Third, declare an element type (usually empty) with an
ENTITY attribute to act as a placeholder for the subdocuments
<!ELEMENT chapter-ptr EMPTY>
<!ATTLIST chapter-ptr source ENTITY #REQUIRED>
Well, there are certainly people who like to do things this way,
especially people who have long years experience of SGML. For my part, I
*never* use entities of any kind to link together the parts of a
composite document. I simply use a URI in one document to point to the
other related documents, and use the XSLT stylesheet to assemble the
information I need using the document() function. I do it this way
because it gives me far more control over how the information is
assembled and how the relationships are managed.
Michael Kay
Software AG
home: Michael(_dot_)H(_dot_)Kay(_at_)ntlworld(_dot_)com
work: Michael(_dot_)Kay(_at_)softwareag(_dot_)com
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