Another problem with visibility of params in templates

[Wolfgang May <may@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

Hi,

I have also a problem with passing a non-constant parameter to
xsl:apply-templates (using xt):

When apply-templates is applied to more than one elements, the passed
parameter binding holds only for the first application. For the
second, it is empty.  When the parameter is a constant (e.g.,
select="2") instead, it is passed correctly to all applications.

The effect is illustrated in the below example (the same happens also
when select="current()" is used).

============== mondial-test.xsl ===================================
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                xmlns:xt="http://www.jclark.com/xt";
		version="1.0"
                extension-element-prefixes="xt">

<xsl:output indent="yes"/>

<xsl:template match="mondial">
  <xt:document href="mondial-test.htm">
  <xsl:apply-templates select="country"/>
  </xt:document>
</xsl:template>

<xsl:template match="country">
    <country> 
      <xsl:copy-of select="name|capital|population"/>
      with computed parameter: 
      <xsl:apply-templates select="adm_div">
           <xsl:with-param name="countrycap" select="./capital/@ref"/>
      </xsl:apply-templates>
      with fixed parameter:
      <xsl:apply-templates select="adm_div">
           <xsl:with-param name="countrycap" select="2"/>
      </xsl:apply-templates>
</country> 
</xsl:template>

<xsl:template match="adm_div">
    <xsl:param name="countrycap" 
       ></xsl:param>
    country's capital should go here: <xsl:value-of
select="$countrycap"/>
</xsl:template>

</xsl:stylesheet>
============== mondial-test.xml ===================================
<mondial>
<country id="cid-cia-Greece">
   <name>Greece</name>
   <car_code>GR</car_code>
   <total_area>131940</total_area>
   <population>10538594</population>
   <capital ref="cty-Greece-Athens"/>
    <adm_div ref="prov-cid-cia-Greece-2"/>
    <adm_div ref="prov-cid-cia-Greece-3"/>
    <adm_div ref="prov-cid-cia-Greece-4"/>
</country>

<city id="cty-Greece-Athens">
   <name>Athens</name>
   <country>cid-cia-Greece</country>
   <theProvince>prov-cid-cia-Greece-3</theProvince>
   <longitude>23.7167</longitude>
   <latitude>37.9667</latitude>
   <population year="81">885737</population>
    <located at="sea" ref="sea-Mittelmeer"/>
</city>

<prov id="prov-cid-cia-Greece-2">
   <name>Anatoliki Makedhonia kai Thraki</name>
   <country>cid-cia-Greece</country>
   <population>574308</population>
   <area>14157</area>
</prov>

<prov id="prov-cid-cia-Greece-3">
   <name>Attiki</name>
   <country>cid-cia-Greece</country>
   <population>3522769</population>
   <area>3808</area>
</prov>

<!-- and so on ... -->

</mondial>
========= Output: mondial-test.htm ===================================
<country>
<name>Greece</name>
<population>10538594</population>
<capital ref="cty-Greece-Athens"/>
      with computed parameter: 
      
    country's capital should go here: cty-Greece-Athens
    country's capital should go here: 
    country's capital should go here: 
      with fixed parameter:
      
    country's capital should go here: 2
    country's capital should go here: 2
    country's capital should go here: 2</country>
=========

so "cty-Greece-Athens" is only passed to the first application,
whereas the constant "2" is passes to all applications :(

Wolfgang

-- -----------------------------------------------------------------
Dr. Wolfgang May         E-mail: may@xxxxxxxxxxxxxxxxxxxxxxxxxx   
Universitaet Freiburg    http://www.informatik.uni-freiburg.de/~may/
Institut fuer Informatik D-79110 Freiburg / Germany
Lehrstuhl fuer Datenbanken und Informationssysteme
Tel ++49 761 203-8131    Fax ++49 761 203-8122 


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