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Re: [xsl] HTML5 and MathML and namespaces, oh my

Subject: Re: [xsl] HTML5 and MathML and namespaces, oh my
From: "Chris Papademetrious christopher.papademetrious@xxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 4 Nov 2020 13:04:14 -0000
Hi Martin,

Thanks for taking the time to reply!

The :mml namespace was a vestigial declaration from earlier experiments. I
didn't realize its presence would cause problems. After deleting it, I get


    ...
    <math xmlns="http://www.w3.org/1998/Math/MathML";>
      <mrow>
        <mrow xmlns="">
          <mspace xmlns="http://www.w3.org/1998/Math/MathML"/>
        </mrow>
      </mrow>
    </math>
    ...


which makes me now realize that my newly-added <mrow> was *not* in the MathML
namespace as I expected. So then I added

    xmlns="http://www.w3.org/1998/Math/MathML";

to my <xsl:stylesheet> opening tag so that the unqualified <mspace> in my
template was created in the MathML namespace, and now I get the expected
results:


<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml";>
  <head>
    <title>Equations</title>
  </head>
  <body>
    <math xmlns="http://www.w3.org/1998/Math/MathML";>
      <mrow>
        <mrow>
          <mspace/>
        </mrow>
      </mrow>
    </math>
  </body>
</html>


In retrospect, my mistakes were:

1. Thinking that "xpath-default-namespace" affected new element creation too.
2. Not realizing that the <mspace> created by my template was *not* in the
MathML namespace.

Many thanks!!

 - Chris
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