Re: Does XSL support an eval?

Is there a way in XSL to take an XPath query described in a parameter or variable, and reference this parameter in the select attribute of say, xsl:for-each to iterate through the node set described by the query.

ie.

<xsl:variable name="myPath" select="'/my/XPath/@query'"/>
<xsl:for-each select="{$myPath}">
        ...
</xsl:for-each>

We were under the impression that using the curly braces might achieve this, but haven't had any luck so far.

T:\ftemp>type test.xml
<?xml version="1.0"?>
<my>
 <XPath query="first">
 </XPath>
 <XPath query="third">
 </XPath>
 <XPath query="second">
 </XPath>
</my>

T:\ftemp>type test.xsl
<?xml version="1.0"?>

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                version="1.0">

<xsl:template match="/">                         <!--root rule-->
  <xsl:variable name="myPath" select="/my/XPath/@query"/>
  <xsl:for-each select="$myPath">
    <xsl:text>Value: </xsl:text>
    <xsl:value-of select="."/>
    <xsl:text>&#xd;&#xa;</xsl:text>
  </xsl:for-each>
</xsl:template>

T:\ftemp>xt test.xml test.xsl
Value: first
Value: third
Value: second

--
G. Ken Holman                    mailto:gkholman@xxxxxxxxxxxxxxxxxxxx
Crane Softwrights Ltd.             http://www.CraneSoftwrights.com/s/
Box 266, Kars, Ontario CANADA K0A-2E0   +1(613)489-0999   (Fax:-0995)
Web site: XSL/XML/DSSSL/SGML services, training, libraries, products.
Practical Transformation Using XSLT and XPath      ISBN 1-894049-04-7
Next instructor-led training:               2000-05-11/12,2000-05-15,
-                                    2000-06-12,2000-06-13,2001-01-27