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<?xml version="1.0" encoding="utf-8"?>
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<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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version="3.0"
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xmlns:xs="http://www.w3.org/2001/XMLSchema"
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xmlns:d="http://example.com/dc"
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exclude-result-prefixes="#all"
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expand-text="yes">
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<xsl:param name="entity-name" as="xs:string">aacute</xsl:param>
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<xsl:param name="entity-reference" as="xs:string"><![CDATA[á]]></xsl:param>
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<xsl:output method="html"/>
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<xsl:template match="/" name="xsl:initial-template">
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<html>
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<head>
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<title>Test</title>
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</head>
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<body>
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<section>
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<h1>key test</h1>
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<p><code><xsl:value-of select="$entity-name || ': ' || $d:ents/key('d:ents', $entity-name)"/></code></p>
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</section>
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<section>
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<h1>function test</h1>
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<p><code><xsl:value-of select="$entity-reference || ': ' || d:chars($entity-reference)"/></code></p>
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</section>
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</body>
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</html>
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</xsl:template>
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<xsl:variable name="d:ents">
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<entity name="Aacute">Á</entity>
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<entity name="aacute">á</entity>
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<entity name="Acirc">Â</entity>
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</xsl:variable>
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<xsl:key name="d:ents" match="entity" use="@name"/>
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<xsl:function name="d:chars">
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<xsl:param name="s" as="xs:string"/>
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<xsl:value-of>
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<xsl:analyze-string select="$s" regex="&(#?)(x?)([0-9a-fA-F]+|[a-zA-Z][a-zA-Z0-9]*);">
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<xsl:matching-substring>
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<xsl:choose>
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<xsl:when test="$d:ents/key('d:ents',regex-group(3))">
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<xsl:value-of select="$d:ents/key('d:ents',regex-group(3))"/>
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</xsl:when>
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<xsl:otherwise>
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<xsl:message>htmlparse: Unknown entity: <xsl:value-of select="regex-group(3)"/></xsl:message>
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<xsl:text>&</xsl:text>
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<xsl:value-of select="regex-group(3)"/>
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<xsl:text>;</xsl:text>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:matching-substring>
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<xsl:non-matching-substring>
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<xsl:value-of select="."/>
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</xsl:non-matching-substring>
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</xsl:analyze-string>
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</xsl:value-of>
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</xsl:function>
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</xsl:stylesheet>
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