Merging data based on attributes, revisited

Processing this SVG ...
======================================================================
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<?xml-stylesheet
	type="text/xsl"
	href="newtest.xsl"?>

<svg xmlns="http://www.w3.org/2000/svg"
	
	contentStyleType="text/css"
	contentScriptType="text/ecmascript"
	version="1.1" zoomAndPan="magnify"
	preserveAspectRatio="xMidYMid meet"
	width="100%" height="100%">
	
	<defs/>
	
	<desc>
		Test Page
	</desc>
	
<!-- TEXT ELEMENTS -->
	<g font-family="Arial" font-size="24">
		<!-- DOCUMENT TITLE -->
		<text><tspan x="400" y="60" text-anchor="middle">Test Page</tspan></text>
	</g>
	
	<g font-family="Arial" font-size="8" text-anchor="middle" id="k1">
		<text x="80" y="140">element phase</text>                    <!--
Here's the difference -->
	</g>
	
	<g font-family="Arial" font-size="8" text-anchor="middle" id="k2">
		<text x="80" y="220">element phase</text>
	</g>
	
	<g font-family="Arial" font-size="8" text-anchor="middle" id="k3">
		<text x="80" y="300">element phase</text>
	</g>

	<g fill="none" stroke="black" stroke-width="2">
		<rect x="40" y="120" width="80" height="50" pointer-events="all"
visibility="visible" />
	</g>

	<g fill="none" stroke="black" stroke-width="2">
		<rect x="40" y="200" width="80" height="50" pointer-events="all"
visibility="visible" />
	</g>

	<g fill="none" stroke="black" stroke-width="2">
		<rect x="40" y="280" width="80" height="50" pointer-events="all"
visibility="visible"/>
	</g>

The data I want to pull in is the same...
=========================================
<?xml version="1.0" encoding="UTF-8"?>

<test>
	<data id="k3">
		<element>Tritium</element>
		<phase>plasma</phase>
	</data>
	<data id="k2">
		<element>Deuterium</element>
		<phase>solid</phase>
	</data>
	<data id="k1">
		<element>Hydrogen</element>
		<phase>gas</phase>
	</data>
</test>

The desired result will put the data items into the SVG with a space
between, thus:
=====================================================================================
	<g font-family="Arial" font-size="8" text-anchor="middle" id="k1">
		<text x="80" y="140">Hydrogen gas</text>
	</g>
	
	<g font-family="Arial" font-size="8" text-anchor="middle" id="k2">
		<text x="80" y="220">Deuterium solid</text>
	</g>
	
	<g font-family="Arial" font-size="8" text-anchor="middle" id="k3">
		<text x="80" y="300">Tritium plasma</text>
	</g>

Here's the Carlisle-improved stylesheet, botched by me.
=======================================================================================
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0"
              xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
              xmlns="http://www.w3.org/2000/svg"
              xmlns:svg="http://www.w3.org/2000/svg"
              exclude-result-prefixes="svg"
              >

<!-- copies all nodes/attributes into result tree unchanged -->
<xsl:template match="@*|node()">
  <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
  </xsl:copy>
</xsl:template>

<xsl:template match="svg:text[.=('element phase')]">
<text>
  <xsl:copy-of select="@*"/>
  <xsl:value-of select="key(element,../@id,doc('textsrc.xml'))"/>
  <xsl:text> </xsl:text>
  <xsl:value-of select="key(phase,../@id,doc('textsrc.xml'))"/>
</text>
</xsl:template>

<xsl:key name="element" match="element" use="../@id"/>
<xsl:key name="phase" match="phase" use="../@id"/>

</xsl:stylesheet>
=====================================================================================

This declines to generate any output under Saxon, so I've
misunderstood something and thoroughly. Advice and clewbats welcome.

BobP
simply.bobp@xxxxxxxxx