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<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:output method="xml"/>
<xsl:template match='/'>
<refcheck>
<xsl:apply-templates select='//xref' mode='missing'/>
<xsl:apply-templates select='//reference' mode='orphans'/>
<xsl:apply-templates select='//references[@dwdrfc-type = "norm"]' mode='normcheck'/>
<xsl:apply-templates select='//xref[@dwdrfc-type = "norm"]' mode='normrefs'/>
</refcheck>
</xsl:template>
<xsl:template match='xref' mode='missing'>
<xsl:param name='refname'>
<xsl:value-of select='@target'/>
</xsl:param>
<xsl:param name='reftgt'>
<xsl:value-of select='//*[@anchor = $refname]/@anchor'/>
</xsl:param>
<xsl:choose>
<xsl:when test='$reftgt = $refname'/>
<xsl:otherwise>
<missing><xsl:value-of select='$refname'/></missing><xsl:text>
</xsl:text>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match='xref' mode='normrefs'>
<xsl:param name='refname'>
<xsl:value-of select='@target'/>
</xsl:param>
<xsl:param name='reftgt'>
<xsl:value-of select='//references[@dwdrfc-type = "norm"]/*[@anchor = $refname]/@anchor'/>
</xsl:param>
<xsl:choose>
<xsl:when test='$reftgt = $refname'/>
<xsl:otherwise>
<missing-norm><xsl:value-of select='$refname'/></missing-norm><xsl:text>
</xsl:text>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match='reference' mode='orphans'>
<xsl:param name='refname'>
<xsl:value-of select='@anchor'/>
</xsl:param>
<xsl:param name='reftgt'>
<xsl:value-of select='//xref[@target = $refname]/@target'/>
</xsl:param>
<xsl:if test='$reftgt != $refname'>
<orphan><xsl:value-of select='$refname'/></orphan><xsl:text>
</xsl:text>
</xsl:if>
</xsl:template>
<xsl:template match='references' mode='normcheck'>
<xsl:apply-templates mode='normcheck'/>
</xsl:template>
<xsl:template match='*' mode='normcheck'>
<!-- Need to find at least one normative reference -->
<xsl:param name='refname'>
<xsl:value-of select='@anchor'/>
</xsl:param>
<xsl:param name='reftgt'>
<xsl:value-of select='//xref[@dwdrfc-type = "norm" and @target = $refname]/@target'/>
</xsl:param>
<xsl:if test='$refname != $reftgt'>
<normchk><xsl:value-of select='$refname'/></normchk><xsl:text>
</xsl:text>
</xsl:if>
</xsl:template>
<xsl:template match='text()' mode='normcheck'/>
</xsl:stylesheet>
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