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<?xml version="1.0" encoding="UTF-8"?>
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<xsl:stylesheet
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:xd="http://www.oxygenxml.com/ns/doc/xsl"
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xmlns:xs="http://www.w3.org/2001/XMLSchema"
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xmlns:els="http://www.lefebvre-sarrut.eu/ns/els"
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exclude-result-prefixes="#all"
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version="3.0"
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>
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<xd:doc>
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<xd:desc>
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<xd:p>Wrap elements starting with specific names into a new element "wrapper" </xd:p>
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</xd:desc>
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<xd:param name="context">Parent of the elements to wrap</xd:param>
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<xd:param name="starts.names">sequence of names to set starting elements</xd:param>
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<xd:param name="wrapper">element wrapper</xd:param>
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<xd:param name="keep-context">Say if the context should be kept or not in the result</xd:param>
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<xd:return>context (or its content) with wrapped element</xd:return>
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</xd:doc>
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<xsl:function name="els:wrap-elements-starting-with-names" as="node()*">
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<xsl:param name="context" as="element()"/>
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<xsl:param name="starts.names" as="xs:string+"/>
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<xsl:param name="wrapper" as="element()"/>
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<xsl:param name="keep-context" as="xs:boolean"/>
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<xsl:sequence select="els:wrap-elements-starting-with(
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$context,
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function($e as element()) as xs:boolean {name($e) = $starts.names},
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$wrapper,
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$keep-context)"/>
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</xsl:function>
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<xd:doc>
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<xd:desc>
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<xd:p>Wrap elements starting with specific names into a new element "wrapper" </xd:p>
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</xd:desc>
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<xd:param name="context">Parent of the elements to wrap</xd:param>
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<xd:param name="starts.function">xpath function to set the starting group condition</xd:param>
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<xd:param name="wrapper">element wrapper</xd:param>
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<xd:param name="keep-context">Say if the context should be kept or not in the result</xd:param>
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<xd:return>context (or its content) with wrapped element</xd:return>
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</xd:doc>
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<xsl:function name="els:wrap-elements-starting-with" as="element()*">
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<xsl:param name="context" as="element()"/>
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<xsl:param name="starts.function"/> <!--as="xs:string"-->
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<xsl:param name="wrapper" as="element()"/>
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<xsl:param name="keep-context" as="xs:boolean"/>
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<xsl:variable name="content" as="item()*">
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<xsl:for-each-group select="$context/node()" group-starting-with="*[$starts.function(.)]">
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<xsl:variable name="cg" select="current-group()" as="node()*"/>
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<xsl:for-each select="$wrapper">
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:copy-of select="$cg"/>
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</xsl:copy>
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</xsl:for-each>
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</xsl:for-each-group>
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</xsl:variable>
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<xsl:choose>
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<xsl:when test="$keep-context">
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<xsl:for-each select="$context">
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:sequence select="$content"/>
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</xsl:copy>
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</xsl:for-each>
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</xsl:when>
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<xsl:otherwise>
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<xsl:sequence select="$content"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:function>
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</xsl:stylesheet>
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