schema-aware.com - the hello world schema aware transform

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" version="2.0">

    <xsl:import-schema schema-location="the-schema.xsd" />

    <xsl:template match="document-node(schema-element(the-root-element))">
        normal case
    </xsl:template>

    <xsl:template match="/">
        error case
    </xsl:template>

</xsl:stylesheet>

Both templates match the document node - the first will be matched when the input has been validated and the root element is correctly typed, the second will match non-validated input.

Handling basic and validated input in the same stylesheet