[xsl] Matching processing-instructions

[Karl Stubsjoen <kstubs@xxxxxxxxx>]

Is an <xsl:apply-templates/> going to hit on child processing
instructions matches, or do I need to specifically select them like:
<xsl:apply-templates select="processing-instructions()"/>

<xsl:template match="processing-instrunction()">
.. do something ..
</xsl:template>

Karl..