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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" version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<xsl:output method="xml" indent="yes" omit-xml-declaration="yes"/>
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<xsl:variable name="input">
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<doc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:hl7-org:v3">
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<doc2>
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<comp xsi:type="IVL_TS" value="2"/>
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</doc2>
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<doc2>
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<comp xsi:type="IVL_TS" value="1"/>
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</doc2>
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<doc2>
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<comp xsi:type="IVL_TS" value="3"/>
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</doc2>
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</doc>
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</xsl:variable>
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<xsl:template match="/">
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<xsl:apply-templates select="$input/*:doc"/>
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</xsl:template>
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<xsl:template match="/*:doc">
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<xsl:variable name="var" as="element()*">
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<xsl:copy-of select="*:doc2"/>
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</xsl:variable>
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<xsl:variable name="varSorted" as="element()*">
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<xsl:for-each select="*:doc2">
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<xsl:sort data-type="number" select="*:comp/@value"/>
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<!-- tested this with xsl:sequence, but it does not respect the sorted order, it takes the input order from the input xml -->
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<!-- the xslt2 perform-sort function has the same result (probably for same reason, since it uses sequence as well) -->
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<!-- so we are using copy-of here to preserve order, even though it is known to perform worse -->
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<xsl:copy-of select="."/>
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</xsl:for-each>
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</xsl:variable>
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<xsl:variable name="varSortedWithSequence" as="element()*">
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<xsl:for-each select="*:doc2">
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<xsl:sort data-type="number" select="*:comp/@value"/>
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<!-- the sorted order is not respected by the sequence select below -->
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<xsl:sequence select="."/>
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</xsl:for-each>
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</xsl:variable>
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<test>
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<select-on-original>
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<xsl:comment> content as expected </xsl:comment>
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<xsl:copy-of select=".//*:comp[namespace-uri-from-QName(resolve-QName(@xsi:type, .)) = 'urn:hl7-org:v3']"/>
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</select-on-original>
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<select-on-variable>
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<xsl:comment> empty but that is unexpected (namespace predicate problem)</xsl:comment>
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<xsl:copy-of select="$var//*:comp[namespace-uri-from-QName(resolve-QName(@xsi:type, .)) = 'urn:hl7-org:v3']"/>
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</select-on-variable>
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<select-on-sorted-variable>
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<xsl:comment> empty but that is unexpected (namespace predicate problem) </xsl:comment>
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<xsl:copy-of select="$varSorted//*:comp[namespace-uri-from-QName(resolve-QName(@xsi:type, .)) = 'urn:hl7-org:v3']"/>
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</select-on-sorted-variable>
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<select-on-sorted-variable>
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<xsl:comment> output is sorted (without namespace predicate)</xsl:comment>
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<xsl:copy-of select="$varSorted//*:comp"/>
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</select-on-sorted-variable>
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<select-on-sorted-variableWithSequence>
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<xsl:comment>output is not sorted unfortunately (namespace predicate works fine) </xsl:comment>
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<xsl:copy-of select="$varSortedWithSequence//*:comp[namespace-uri-from-QName(resolve-QName(@xsi:type, .)) = 'urn:hl7-org:v3']"/>
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</select-on-sorted-variableWithSequence>
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</test>
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</xsl:template>
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</xsl:stylesheet>
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