use of variables in xsl:value-of

[in...@gmx.de]

Hello,

I have problems with the use of variables in FOP.

my xml-file looks like this:

<allgemein>
  <verteiler>
    <summary>
       <name>User1</name>
       <name>User2</name>
    </summary>
    <detail>
       <name>User3</name>
       <name>User4</name>
    </detail>
  </verteiler>
</allgemein>

and here's my xsl-file:

<xsl:for-each select="//verteiler/detail/name">
  <xsl:variable name="anzahl"><xsl:number value="position()"
format="1"/></xsl:variable>
  <fo:table-row line-height="1cm" border="solid 1px black">
    <fo:table-cell>
       <fo:block text-align="start" font-weight="bold">
         <!-- <xsl:value-of select="$anzahl"/>  with this i get number 1 and
2 in cell1-->
         <!-- here i want to get User1 and User2 -->
         <xsl:value-of select="//verteiler/summary/name[$anzahl]"/>
       </fo:block>
    </fo:table-cell>
    <fo:table-cell>
      <fo:block text-align="start" font-weight="bold">
        <xsl:value-of select="."/>          <!-- here i get User3 and User4
-->
      </fo:block>
     </fo:table-cell>
  </fo:table-row>
</xsl:for-each>

I want to get User1 and User2 in the first cell, User3 and User4 in the
second cell. It can also be that there are more users in <detail> than in
<summary>.
I always get User1 in cell1 row1 and 2 - never User2!  In the second I see
User3 and User4. When I use instead "//verteiler/summary/name[2]" I get User2.
I don't understand why the value of the variable is not used here. I've seen
the use of variables in this way in many tutorials but for me it doesn't
work. I now it's an XSL problem, but maybe it is because of FOP.

Thanks for your help,
Markus

-- 
GMX - Die Kommunikationsplattform im Internet.
http://www.gmx.net

Re: use of variables in xsl:value-of

[Oleg Tkachenko <ol...@multiconn.com>]

inchi2000@gmx.de wrote:

> I have problems with the use of variables in FOP.
Actually the problem has nothing to do with fop, instead it's fully xslt/xpath 
     stuff, you'd better ask in xsl-list.


>   <xsl:variable name="anzahl"><xsl:number value="position()"
> format="1"/></xsl:variable>
Do you realize $anzahl this way is type of result tree fragment (rtf) and not 
number?

>   <fo:table-row line-height="1cm" border="solid 1px black">
>     <fo:table-cell>
>        <fo:block text-align="start" font-weight="bold">
>          <!-- <xsl:value-of select="$anzahl"/>  with this i get number 1 and
> 2 in cell1-->
>          <!-- here i want to get User1 and User2 -->
>          <xsl:value-of select="//verteiler/summary/name[$anzahl]"/>
As $anzahl is not number type, it evaluates to boolean type and as rtf is 
never empty it's always true, so the line is equivalent to
<xsl:value-of select="//verteiler/summary/name"/>
which always outputs string value of the first name element in document order.
You can either change variable definition to
<xsl:variable name="anzahl" select="position()"/>
or explicitly compare position() and $anzahl:
<xsl:value-of select="//verteiler/summary/name[position() = $anzahl]"/>

-- 
Oleg Tkachenko
Multiconn International, Israel