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[Bug 30128] New: POLYGLOT namespace declarations

From: <bugzilla@jessica.w3.org>
Date: Thu, 15 Jun 2017 15:23:31 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-30128-523@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=30128

            Bug ID: 30128
           Summary: POLYGLOT namespace declarations
           Product: XPath / XQuery / XSLT
           Version: Recommendation
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Serialization 3.1
          Assignee: cmsmcq@blackmesatech.com
          Reporter: alejandro.r.rojas@oracle.com
        QA Contact: public-qt-comments@w3.org
  Target Milestone: ---

Test with this problem:
Serialization-xhtml-2
Serialization-xhtml-21
Serialization-xhtml-22
Serialization-xhtml-38
Serialization-xhtml-40

In the tests from the above list, the expected ouput match for the first
element <html> is &lt;html&gt; but I think
it should also allow to match a namespace declaration for XHTML namespace like
this: &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
This to allow implementations to create quirk-compatible documents.

This because the spec says:

... If the value of the html-version serialization parameter is 5.0, the
serializer SHOULD output namespace 
declarations in a way that is consistent with the requirements of [POLYGLOT].
...

>From POLYGLOT[https://www.w3.org/TR/html-polyglot/] :

4.4.1 Element-level namespaces

[HTML5] introduces undeclared (native) default namespaces for the root HTML
element, html, the root SVG element, svg, 
and the root MathML element, math. Polyglot markup declares the following
default namespaces, when the markup languages 
are included in the document, to maintain XML compatibility [XML10]:

    <html xmlns="http://www.w3.org/1999/xhtml"> <math
xmlns="http://www.w3.org/1998/Math/MathML"> <svg
xmlns="http://www.w3.org/2000/svg"> 

Polyglot markup declares the default namespaces on the root HTML element, html,
the root SVG element, svg, and the root
 MathML element math, and on any HTML elements used as children of SVG or
MathML elements. Polyglot markup does not 
declare any other default or prefixed element namespace, because [HTML5] does
not natively support the declaring of 
any other default or prefixed element namespace.

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Received on Thursday, 15 June 2017 15:23:39 UTC

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