Re: [xsl] XML source with DOCTYPE declaration

[David Carlisle <davidc at nag dot co dot uk>]

   Hi David,

   At 10:49 PM 4/20/01, you wrote:
   > > This suggests there's a top-level switch intended to turn namespace
   > > prefixes on the names on and off.
   >
   >the declarations allow you to set the prefix used (or not) in the
   >instance, the default for HTML (and MathML which uses the same)
   >is for no prefix, but you can specify a prefix if you wish by using a
   >parameter entity declaration.
   >
   >but non of this makes any difference to the stylesheet unless you use th
   >ename() function (which is usually inadvisable for any input files using
   >namespaces)

   Ah -- so the namespace _declaration_ is there in the DTD regardless of 
   whether you allow for prefixes?

yes.


   Still, the existance of other declarations Zeljko cited --

   ><!ENTITY % NS.prefixed "IGNORE">
   ><!ENTITY % XHTML.prefixed "%NS.prefixed;">
   ><!ENTITY % XHTML.xmlns "http://www.w3.org/1999/xhtml";>
   ><!ENTITY % XHTML.prefix "">
   ><!ENTITY % XHTML.xmlns.attrib "xmlns   %URI.datatype;  #FIXED
   >'%XHTML.xmlns;          %XLINK.xmlns.attrib;">

   suggests that a similar kind of surgery, albeit deeper, might suffice to 
   get the DTD to suppress its hard-wired namespace declarations

Unless something has gone wrong, that would require editing the DTD.
It's supposed to be the DTD for XHTML and XHTML elements are in the
XHTML namespace. You could edit the DTD to change the namespace name but
that is just the same kind of edit as changing the local name of an
element from say <h1> to <title> in either case the result is a DTD but
its no longer XHTML.

   . Admittedly, 
   it might be going a bit further than the designers intended. But the basic 
   requirement of being able to use the same XSLT on documents with or without 
   the DOCTYPE declaration, without a big song and dance in the stylesheet, 
   seems quite reasonable to me.

All that needs happen is that the source document follows th eadvice in
both the namespace and XHTML documents and have an explicit xmlns="..."
in the HTML element, then the document is XHTML whether or not the DTD
is read.

David

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