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    copied!<p><strong>This transformation</strong>:</p> <pre><code>&lt;xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"&gt; &lt;xsl:output omit-xml-declaration="yes" indent="yes"/&gt; &lt;xsl:strip-space elements="*"/&gt; &lt;xsl:key name="kContentByElName" match="Localization/Content/*" use="name()"/&gt; &lt;xsl:key name="kNestedById" match="Localization/Content/Nested/NestedItem" use="Id"/&gt; &lt;xsl:template match="node()|@*"&gt; &lt;xsl:copy&gt; &lt;xsl:apply-templates select="node()|@*"/&gt; &lt;/xsl:copy&gt; &lt;/xsl:template&gt; &lt;xsl:template match="/*/Content/*[not(self::Nested)]/text()"&gt; &lt;xsl:variable name="vTranslation" select="key('kContentByElName', name(..))"/&gt; &lt;xsl:value-of select="$vTranslation | self::node()[not($vTranslation)]"/&gt; &lt;/xsl:template&gt; &lt;xsl:template match= "NestedItem[not(ancestor::Localization)]/Content/text()"&gt; &lt;xsl:variable name="vTranslation" select="key('kNestedById', ../../Id)/Content"/&gt; &lt;xsl:value-of select="$vTranslation | self::node()[not($vTranslation)]"/&gt; &lt;/xsl:template&gt; &lt;xsl:template match="Localizations"/&gt; &lt;/xsl:stylesheet&gt; </code></pre> <p><strong>when applied on the provided XML document</strong>:</p> <pre><code>&lt;Page&gt; &lt;Id&gt;Page1&lt;/Id&gt; &lt;Content&gt; &lt;Header&gt;This is the Header&lt;/Header&gt; &lt;Body&gt;This is the body&lt;/Body&gt; &lt;Nested&gt; &lt;NestedItem&gt; &lt;Id&gt;N1&lt;/Id&gt; &lt;Content&gt;This is a nested element&lt;/Content&gt; &lt;/NestedItem&gt; &lt;NestedItem&gt; &lt;Id&gt;N2&lt;/Id&gt; &lt;Content&gt;This too is a nested element&lt;/Content&gt; &lt;/NestedItem&gt; &lt;/Nested&gt; &lt;/Content&gt; &lt;Localizations&gt; &lt;Localization&gt; &lt;Locale&gt;ES&lt;/Locale&gt; &lt;Content&gt; &lt;Header&gt;Esta un caballo&lt;/Header&gt; &lt;Body&gt;Esta body&lt;/Body&gt; &lt;Nested&gt; &lt;NestedItem&gt; &lt;Id&gt;N2&lt;/Id&gt; &lt;Content&gt;Esta una element nestado&lt;/Content&gt; &lt;/NestedItem&gt; &lt;/Nested&gt; &lt;/Content&gt; &lt;/Localization&gt; &lt;/Localizations&gt; &lt;/Page&gt; </code></pre> <p><strong>produces the wanted, correct result</strong>:</p> <pre><code>&lt;Page&gt; &lt;Id&gt;Page1&lt;/Id&gt; &lt;Content&gt; &lt;Header&gt;Esta un caballo&lt;/Header&gt; &lt;Body&gt;Esta body&lt;/Body&gt; &lt;Nested&gt; &lt;NestedItem&gt; &lt;Id&gt;N1&lt;/Id&gt; &lt;Content&gt;This is a nested element&lt;/Content&gt; &lt;/NestedItem&gt; &lt;NestedItem&gt; &lt;Id&gt;N2&lt;/Id&gt; &lt;Content&gt;Esta una element nestado&lt;/Content&gt; &lt;/NestedItem&gt; &lt;/Nested&gt; &lt;/Content&gt; &lt;/Page&gt; </code></pre> <p><strong>Do note</strong>:</p> <ol> <li><p>This is a pure XSLT 1.0 solution.</p></li> <li><p>Keys are used for fast searching.</p></li> <li><p>All nodes are copied "as-is" by using the <em>identity rule</em>.</p></li> <li><p>Templates matching the nodes that need processing override the identity rule.</p></li> <li><p>Whenever there is no translation found the original text is preserved.</p></li> </ol>
 

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