<xsl:for-each
select = "nodeset-expression"
>
<!-- content:xsl:sort -->
<!-- content:template -->
</xsl:for-each>
<xsl:sort
select = "string-expression"
data-type = "text" | "number" | "qname-but-not-ncname"
order = "ascending" | "descending"
case-order = "upper-first" | "lower-first"
lang = "nmtoken"
/>