RE: Sorting unsorted elements based on their attribute

Hi.

	<comments>
	<comment page="20030101">blah</comment>
	<comment page="20030207">blah</comment>
	<comment page="20011127">blah</comment>
	...etc
	</comments>

	Each <comment> element has a page attribute, which contains a date
in
	format CCYYMMDD as shown above.

	I'm trying to use a XSL stylesheet to display these, or sort them if
you prefer that wording, into a year/month/day type format.

I think you can use the substring() function in a match attribute as part of
a valid XPath expression.

substring(string, start_position, length)

<xsl:key match="comment" use="comment/substring(@page, 1, 4)" /> 

That would select the unique years.  If all of your dates are the same you
can supply start points for the parts you need.

Hope that helps.
Erika

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