Re: Using variables in xpath attribute matches

If you are using Saxon, I believe a solution exists by using the
extension functions saxon:expression() and saxon:eval().

See:
http://www.saxonica.com/documentation/extensions/functions/expression.html
http://www.saxonica.com/documentation/extensions/functions/eval.html

Darcy
On Thu, Aug 21, 2008 at 1:07 PM, Matt Lee <reachmatt.lee@xxxxxxxxx> wrote:
>
> Hi,
>
> I have the following template:
>
> <xsl:template name="get_attribute">
> <xsl:param name="attribute"/>
> <xsl:value-of select="@<<FIXME>>"/>
> </xsl:template>
>
>
> I would like to use the value of the attribute parameter passed into
> this template as the attribute match expression in the inner most
> select. But I am quite confused as to what the syntax is for doing
> this. For instance, given this XML,
>
> <foo>
> <node attrib1="1" attrib2="2"/>
> </foo>
>
> I would like to invoke the get_attribute template as follows:
>
> <xsl:call-template name="get_attribute"> <xsl:with-param
> name="attribute>attrib1</xsl:with-param>
> <xsl:call-template name="get_attribute"> <xsl:with-param
> name="attribute>attrib2</xsl:with-param>
>
> I have tried the following syntaxes, with no success. The parser gives
> syntax errors.
>
> <xsl:value-of select="@$attribute"/>
> <xsl:value-of select="@{$attribute}"/>
> <xsl:value-of select="@'$attribute'"/>
> <xsl:value-of select="@string($attribute)"/>
>
> Everything works fine, if I directly key in the attribute name:
>
> <xsl:value-of select="@attrib1"/> and so on.
>
> Am I trying to do something really stupid? Please advise. It sounds
> like it would be useful to construct the xpath expression via
> variables.
>
> matt