Re: Sorting network addresses

> Is there a way to extend the sort function provided by XSLT? 

the xslt spec allows you to use any name (in a namespace of your choice)
in addition to the two predefined names of number and text as sorting
datatypes.

How you associate the name with the java that specifies the sorting, and
what java would be needed would be processor specific but I'd be
surprised if xalan doesn't offer a hook to this (saxon does)

That said, you could do this just in xslt as

<xsl:sort data-type="number" select="substring-before(address,'.')"/>
<xsl:sort data-type="number" select="substring-before(substring-after(address,'.'),'.')"/>
<xsl:sort data-type="number" select="substring-before(substring-after(substring-after(address,'.'),'.'),'.')"/>
<xsl:sort data-type="number" select="substring-after(substring-after(substring-after(address,'.'),'.'),'.')"/>


(modulo typing errors:-)

david

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