Subject: RE: Select nodes with equal position
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Sat, 2 Apr 2005 20:22:32 +0100
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> depending on the postion() of a certain node I would like to select
> another node with the same position.
> It works if I invent a variable.
> But I wonder if there is a way to do it without the use of a variable?
Not if you're using a predicate, because position() inside a predicate is
different from position() outside the predicate.
As DC said, it's much better to make your variable hold the position as a
number rather than as a text node in a result tree fragment: that is, to use
the select attribute.
In fact there's an XSLT 2.0 solution that doesn't require a predicate and
therefore doesn't require a variable:
<xsl:value-of select="../../subsequence(colspec, position(), 1)/@colname"/>
Michael Kay
http://www.saxonica.com/
>
>
> XML:
>
> <table>
> <colspec colname="c1"/>
> <colspec colname="c2"/>
> <colspec colname="c3"/>
> <row>
> <entry colname="c1">r1_1</entry>
> <entry colname="c2">r1_2</entry>
> <entry colname="c3">r1_2</entry>
> </row>
> </table>
>
>
> XSL:
> <xsl:template match="entry">
> <xsl:variable name="mypos">
> <xsl:value-of select="position()"/>
> </xsl:variable>
> <xsl:value-of select="../../colspec[position() = $mypos]/@colname"/>
> </xsl:template>
>
>
> Best regards and thanks for your comments,
> Norbert Heidbrink
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