Question

Why does the following not work as I’d expect it to?

<root xmlns:ns0="xmlns" 
      ns0:xsi="http://www.w3.org/2001/XMLSchema-instance" 
      xmlns:ns1="xsi" 
      ns1:schemaLocation="[some schema location]" />

Basically, I’m trying to add schemaLocation to an xml file that doesn’t have this by doing :-

<xsl:template match="/s:*">
  <xsl:element name="{local-name()}" namespace="some other namespace">
    <xsl:attribute namespace="xmlns" name="xsi">http://www.w3.org/2001/XMLSchema-instance</xsl:attribute>
    <xsl:attribute namespace="xsi" name="schemaLocation">[some-loc]</xsl-attribute>
    <xsl:apply-templates select="@*|node()"/>
  </xsl:element>
</xsl:template>

and Xalan-C gives the xml shown above.

What I’m trying to get is something like :-

<root xmlns:ns0="http://www.w3.org/2001/XMLSchema-instance"
      ns0:schemaLocation="[some schema location]" />

Answer 1

You need <xsl:attribute name="xsi:schemaLocation">[some-loc]</xsl:attribute>.

Edit (adding complete example):

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:fn="http://www.w3.org/2005/xpath-functions" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
   <xsl:template match="root">
      <xsl:element name="{local-name()}" namespace="some other namespace">
         <!--<xsl:attribute namespace="xmlns" name="xsi">http://www.w3.org/2001/XMLSchema-instance</xsl:attribute>-->
         <xsl:attribute name="xsi:schemaLocation">[some-loc]</xsl:attribute>
         <xsl:apply-templates select="@*|node()"/>
      </xsl:element>
   </xsl:template>
</xsl:stylesheet>

Depending on what exactly you’re doing you can possibly use <xsl:copy> to copy the element instead of <xsl:element name="{local-name()}"/>; it’s somewhat simpler.