RE: Help! Using variables in for-each

[Scott Moore]

Thanks for the help.  <xsl:value-of select="*[name() = $col1-select]"/>
works without having to use any extension functions (like "nodeset($root)").

Scott

BTW - "xalan:nodeset($root)" and "xalan:evaluate($col1-select)" does NOT
work.  Although I didn't mention it in my original email, I have tried that
route.  nodeset() doesn't cause a problem, but evaluate() gives this error
in Xalan 2 R11:

(Location of error unknown)XSLT Error
javax.xml.transform.TransformerException): null


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Friday, November 02, 2001 12:53 PM
To: Scott Moore
Cc: Xalan-J-Users (E-mail)
Subject: Re: Help! Using variables in for-each



Hi Scott.  Your <xsl:value-of select="$col1-select"/> is simply selecting
the string value of the variable reference, as it is supposed to do.

> I've tried lots of different expressions
>
> "{$col1-select}"

Only attributes specified in the XSLT specification as attribute value
templates will accept {xxx}.  select and test attributes are not among
them.  The bottom line is that XPath expressions can not be dynamically
evaluated.

Probably your best bet is:

<xsl:value-of select="*[name() = $col1-select"/>

-scott




 

                    Scott Moore

                    <[EMAIL PROTECTED]       To:     "Xalan-J-Users (E-mail)"
<[EMAIL PROTECTED]>           
                    ecide.com>              cc:     (bcc: Scott
Boag/CAM/Lotus)                                       
                                            Subject:     Help!  Using
variables in for-each                           
                    11/02/2001 12:35

                    PM

 

 





I'm trying to write a template in xalan that takes a result tree fragment
($root) along with the names of child elements ($col1-select and
$col2-select).  This template would then dynamically create a XSL-FO table
based on the variables passed in.  The template looks something like this:

  <xsl:template name="table-body">
    <xsl:param name="root"/>
    <xsl:param name="col1-select"/>
    <xsl:param name="col2-select"/>

    <fo:table-body>
      <xsl:for-each select="$root">
        <fo:table-row>
          <fo:table-cell>
            <fo:block><xsl:value-of select="$col1-select"/></fo:block>
          </fo:table-cell>
          <xsl:if test="string-length($col2-select) > 0">
            <fo:table-cell>
              <fo:block><xsl:value-of select="$col2-select"/></fo:block>
            </fo:table-cell>
          </xsl:if>
        </fo:table-row>
      </xsl:for-each>
    </fo:table-body>
  </xsl:template>

<xsl:call-template name="table-body">
  <xsl:with-param name="root" select="/Session/Values"></xsl:with-param>
  <xsl:with-param name="col1-select">node1</xsl:with-param>
  <xsl:with-param name="col2-select">node2</xsl:with-param>
</xsl:call-template>


It doesn't work.  Instead of treating $col1-select as a XPath expression,
it
just adds the literal string.  I've tried lots of different expressions

"{$col1-select}"
"./$col1-select"
"self:node()/[name()=$col1-select]"
blah blah

Is this possible?  I think it's probably something simple, but I just can't
figure it out.

Thanks for any help,
Scott