Move child nodes values to attributes

Hi experts,

I have the following xml file:
--------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<RootCircle  version="1.0">
  <Square  size = "m">
    <myExtension name = "angle" value = "4" />
    <Triangle color="red" size="big" />
    <Triangle  />
  </Square>
</RootCircle>
----------------------------------------
I want the output to be:

<?xml version="1.0" encoding="UTF-8"?>
<RootCircle  version="1.0">
  <Square  size = "m"  angle = "4">
    <Triangle color="red" size="big" />
    <Triangle  />
  </Square>
</RootCircle>

------------------------------
How do I do this? Thanks a lot!

LVL 1
meow00Asked:
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zc2Connect With a Mentor Commented:
the xsl below replaces each myExtension element to the corresponding attribute of its parent
<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
	<xsl:template match="myExtension">
		<xsl:attribute name="{@name}"><xsl:value-of select="@value"/></xsl:attribute>
	</xsl:template>
 
	<xsl:template match="*[myExtension]">
	  <xsl:copy>
	    <xsl:apply-templates select="@*"/>
		<xsl:apply-templates select="myExtension"/>
		<xsl:apply-templates select="*[name()!='myExtension']"/>
	  </xsl:copy>
	</xsl:template>
	
	<xsl:template match="*">
		<xsl:copy>
			<xsl:apply-templates select="@*|*|text()"/>
		</xsl:copy>
 	</xsl:template>
	
	<xsl:template match="@*|text()">
		<xsl:copy/>
 	</xsl:template>
	
</xsl:stylesheet>

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