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POMap XSLT input document prefixes to preferred values
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  1. POMap XSLT input document prefixes to preferred values
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    copied!<p>Using XSLT, I'm wondering how to get the output to use my stylesheet's namespace prefixes rather than the input document's prefixes. By way of example, given this very simplified document: </p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;a:node xmlns:a="urn:schemas:blah:"/&gt; </code></pre> <p>And the following XSL transform:</p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:blah="urn:schemas:blah:" version="2.0"&gt; &lt;xsl:output indent="yes"&gt; &lt;xsl:template match="/blah:node"&gt; &lt;xsl:copy/&gt;&lt;!-- marked --&gt; &lt;/xsl:template&gt; &lt;/xsl:transform&gt; </code></pre> <p>I can tell that the processor (Saxon8 if it matters) recognizes the equivalence of the prefixes 'blah:' and 'a:', but <a href="http://www.w3.org/TR/xpath-functions/#func-in-scope-prefixes" rel="nofollow noreferrer">fn:in-scope-prefixes()</a> for example doesn't show 'blah', only 'a'. Changing the <code>&lt;!-- marked --&gt;</code> line above to:</p> <pre><code>&lt;node&gt;&lt;xsl:value-of select="in-scope-prefixes(.)"/&gt;&lt;/node&gt; </code></pre> <p>Outputs:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;node xmlns:blah="urn:schemas:blah:"&gt;xml a&lt;/node&gt; </code></pre> <p>How can I map the input prefix 'a' to 'blah' without knowing in advance that the input file calls that prefix 'a'? (So <a href="http://www.w3.org/TR/xslt20/#namespace-aliasing" rel="nofollow noreferrer"><code>&lt;xsl:namespace-alias/&gt;</code></a> won't work for me.)</p> <p>As further context, if it points toward a better solution, this is for viewing XML documents that are generated externally. The external process creates the input document using automatically-generated prefixes 'a:', 'b:', 'c:', etc. I want to be able to display those prefixes using 'friendlier' namespace prefixes.</p> <p><em>Update</em>: The in-scope-prefixes() behavior is explained by <a href="http://www.w3.org/TR/xpath20/#dt-static-namespaces" rel="nofollow noreferrer">the definition of Statically known namespaces</a></p>
 

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