HTML5 and MathML and namespaces, oh my
| Newsgroups | gmane.text.xml.xsl.general.mulberrytech |
|---|---|
| Message-ID | <[email protected]> |
Hi all,
I have an HTML5-namespaced document containing MathML-namespaced <math> content:
<!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>
<mspace/>
</mrow>
</math>
</body>
</html>
I am trying to create an XSLT transformation that modifies these islands of MathML while leaving the surrounding content untouched. As a test, I try wrapping <mspace> elements in <mrow>:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
xpath-default-namespace="http://www.w3.org/1998/Math/MathML"
exclude-result-prefixes="xs"
version="2.0">
<!-- baseline identity transform -->
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<!-- xpath-default-namespace is the MathML namespace -->
<xsl:template match="mspace">
<mrow>
<xsl:copy-of select="."/>
</mrow>
</xsl:template>
</xsl:stylesheet>
However, the output has namespace references that are redundant with their enclosing context:
<!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 xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns="">
<mspace xmlns="http://www.w3.org/1998/Math/MathML"/>
</mrow>
</mrow>
</math>
</body>
</html>
I've been reading about XSLT and namespaces for hours. This is the best resource I've found:
http://www.lenzconsulting.com/namespaces-in-xslt/
and it got me to this point. My questions are:
1. Why would the XSLT serializer write explicit namespace references that aren't needed by context?
1. Isn't the point of namespaces that everything is fully qualified internally, then the output can adjust accordingly?
1. How do I get a clean <math> island of MathML content without namespace stuff cluttering up its contents?
Thanks in advance!
-----
Chris Papademetrious
Tech Writer, Implementation Group
(610) 628-9718 home office
(570) 460-6078 cell
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