<?xml version=“1.0” encoding=“UTF-8”?> <!–

Stylesheet for extracting Schematron information from a RELAX-NG schema.
Based on the stylesheet for extracting Schematron information from W3C XML Schema.
Created by Eddie Robertsson 2002/06/01
Update for ISO Schematron using XSLT2 Rick Jelliffe 2010/04/14

–> <xsl:transform version=“1.0” xmlns:xsl=“www.w3.org/1999/XSL/Transform” xmlns:sch=“purl.oclc.org/dsdl/schematron” xmlns:rng=“relaxng.org/ns/structure/1.0”>

<!-- Set the output to be XML with an XML declaration and use indentation -->
<xsl:output method="xml" omit-xml-declaration="no" indent="yes" standalone="yes"/>
<!-- -->
<!-- match schema and call recursive template to extract included schemas -->
<!-- -->
<xsl:template match="/rng:grammar | /rng:element">
        <!-- call the schema definition template ... -->
        <xsl:call-template name="gatherSchema">
                <!-- ... with current node as the $schemas parameter ... -->
                <xsl:with-param name="schemas" select="."/>
                <!-- ... and any includes in the $include parameter -->
                <xsl:with-param name="includes" select="document(/rng:grammar/rng:include/@href

| //rng:externalRef/@href)“/>

        </xsl:call-template>
</xsl:template>
<!-- -->
<!-- gather all included schemas into a single parameter variable -->
<!-- -->
<xsl:template name="gatherSchema">
        <xsl:param name="schemas"/>
        <xsl:param name="includes"/>
        <xsl:choose>
                <xsl:when test="count($schemas) &lt; count($schemas | $includes)">
                        <!-- when $includes includes something new, recurse ... -->
                        <xsl:call-template name="gatherSchema">
                                <!-- ... with current $includes added to the $schemas parameter ... -->
                                <xsl:with-param name="schemas" select="$schemas | $includes"/>
                                <!-- ... and any *new* includes in the $include parameter -->
                                <xsl:with-param name="includes" select="document($includes/rng:grammar/rng:include/@href

| $includes//rng:externalRef/@href)“/>

                        </xsl:call-template>
                </xsl:when>
                <xsl:otherwise>
                        <!-- we have the complete set of included schemas, so now let's output the embedded schematron -->
                        <xsl:call-template name="output">
                                <xsl:with-param name="schemas" select="$schemas"/>
                        </xsl:call-template>
                </xsl:otherwise>
        </xsl:choose>
</xsl:template>
<!-- -->
<!-- output the schematron information -->
<!-- -->
<xsl:template name="output">
        <xsl:param name="schemas"/>
        <!-- -->
        <sch:schema  queryBinding="xslt2" >
                <!-- get header-type elements - eg title and especially ns -->
                <!-- title (just one) -->
                <xsl:copy-of select="$schemas//sch:title[1]"/>
                <!-- get remaining schematron schema children -->
                <!-- get non-blank namespace elements, dropping duplicates -->
                <xsl:for-each select="$schemas//sch:ns">
                        <xsl:if test="generate-id(.) = generate-id($schemas//sch:ns[@prefix = current()/@prefix][1])">
                                <xsl:copy-of select="."/>
                        </xsl:if>
                </xsl:for-each>
                <xsl:copy-of select="$schemas//sch:phase"/>
                <xsl:copy-of select="$schemas//sch:pattern"/>
                <sch:diagnostics>
                        <xsl:copy-of select="$schemas//sch:diagnostics/*"/>
                </sch:diagnostics>
        </sch:schema>
</xsl:template>
<!-- -->

</xsl:transform>