Re: Does XSL support an eval?

Hi folks,

this one was pretty good, but what if the path is more sophisticated, such
as compossition of variables and strings, for example:

Your XML:
<root>
 <A>aaa</A>
 <A-list>alist</A-list>
</root>

Your XSL:
<xsl:variable name="path">/root/</xsl:variable>
<xsl:variable name="element">A</xsl:variable>

And you want to reference element: "/root/A-list" but using your variables,
something like:
<xsl:for-each select="$path+$element+'-list'" />
 ....
??

I've got also one perhaps stupid question. If I have a variable, say:

<xsl:variable name="foo">foobar</xsl:variable>

and I want to render the actual VALUE on the resulting tree rather then
value of the NODE referenced by the variable?

For example:

<xsl:value-of select="$foo" />

is looking node "foobar" but I want to copy the text "foobar" on the
resulting tree.

I must be missing sg really basic here.


Thank you,
--Josef



"G. Ken Holman" wrote:

> At 00/05/02 02:23 +1000, JamesW@xxxxxxxxxxxxxxx wrote:
> >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="{$myPath}">
> >         ...
> ></xsl:for-each>
> >
> >We were under the impression that using the curly braces might achieve
> >this, but haven't had any luck so far.
>
> You are *so* close that I hope you don't get hurt kicking yourself.
>
> Using standard XSLT 1.0 (no extensions) you can assign a node set to a
> variable using an XPath expression ... unfortunately, you quoted your
> expression which is assigning a string value to the variable, not a node
> set.  When you assign a node set and you remove the brace brackets you
> have, it works just fine (see example below).
>
> I hope this helps.
>
> ................ Ken
>
> T:\ftemp>type test.xml
> <?xml version="1.0"?>
> <my>
>   <XPath query="first">
>   </XPath>
>   <XPath query="third">
>   </XPath>
>   <XPath query="second">
>   </XPath>
> </my>
>
> T:\ftemp>type test.xsl
> <?xml version="1.0"?>
>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>                  version="1.0">
>
> <xsl:output method="text"/>
>
> <xsl:template match="/">                         <!--root rule-->
>    <xsl:variable name="myPath" select="/my/XPath/@query"/>
>    <xsl:for-each select="$myPath">
>      <xsl:text>Value: </xsl:text>
>      <xsl:value-of select="."/>
>      <xsl:text>&#xd;&#xa;</xsl:text>
>    </xsl:for-each>
> </xsl:template>
>
> </xsl:stylesheet>
>
> T:\ftemp>xt test.xml test.xsl
> Value: first
> Value: third
> Value: second
>
> T:\ftemp>
>
> --
> 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.
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>
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