Re: Re: what does xsl:sort do if "select" doesn't eval

"Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx> wrote in message
news:Pine.LNX.4.44.0303182306400.26300-100000@xxxxxxx

 what is the defined behavior for <xsl:sort> if the "select="
expression is not satisfied by anything?

 eg., i want to process a bunch of <car> elements, sorted by their
engine <displacement> values, but some of the <car> elements have no
such element?

If the "data-type" attribute of xsl:sort is "number" then the value of the
sort key "displacement" will be NaN -- and they will be sorted again as a
group -- first or last depending on the implementation.

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Jeff Kenton
DataPower Technology, Inc.