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File: Data.xml
<?xml version="1.0"?>
<SCENE>
<TITLE>title 1</TITLE>
<STAGEDIR>A</STAGEDIR>
<SPEECH>
<SPEAKER>B</SPEAKER>
<LINE>line 1</LINE>
<LINE>line 2</LINE>
<LINE>line 3</LINE>
<LINE>line 4</LINE>
<LINE>line 5</LINE>
<LINE>line 6</LINE>
</SPEECH>
</SCENE>
File: Transform.xsl
<?xml version="1.0"?>
<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="2.0">
<xsl:template match="SCENE">
<html>
<body>
<xsl:apply-templates select="TITLE" />
<xsl:variable name="speakers" as="element()*">
<xsl:for-each-group select="//SPEAKER"
group-by=".">
<xsl:sequence select="current-group()[1]" />
</xsl:for-each-group>
</xsl:variable>
<h2>
Cast:
<xsl:apply-templates select="$speakers"
mode="cast-list" />
</h2>
<xsl:apply-templates select="* except TITLE" />
</body>
</html>
</xsl:template>
<xsl:template match="SPEAKER" mode="cast-list">
<xsl:value-of select="." />
<xsl:if test="not(position()=last())">,</xsl:if>
</xsl:template>
<xsl:template match="TITLE">
<h1>
<xsl:apply-templates />
</h1>
</xsl:template>
<xsl:template match="STAGEDIR">
<i>
<xsl:apply-templates />
</i>
</xsl:template>
<xsl:template match="SPEECH">
<p>
<xsl:apply-templates />
</p>
</xsl:template>
<xsl:template match="SPEAKER">
<b>
<xsl:apply-templates />
</b>
<br />
</xsl:template>
<xsl:template match="LINE">
<xsl:apply-templates />
<br />
</xsl:template>
</xsl:transform>
Output:
<html>
<body>
<h1>title 1</h1>
<h2>
Cast:
B
</h2><i>A</i><p>
<b>B</b><br>
line 1<br>
line 2<br>
line 3<br>
line 4<br>
line 5<br>
line 6<br>
</p>
</body>
</html>
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