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Re: [xsl] automatic creation of nested elements

2008-12-04 01:15:46
Dear all,

I am facing two problems in the given stylesheet.

1. <xsl:apply-templates/> is coming in both the elements resulting
duplication of the content.
2. multiple attributes are not getting created. Only single
attributing is getting created.

Please guide me how to achieve the above two points.

Regards,
Ganesh


On Mon, Dec 1, 2008 at 8:22 PM, Vasu Chakkera <vasucv(_at_)gmail(_dot_)com> 
wrote:
Try the below. ( i just carried it along the way of creating the
children recursively from your target. add your attributes etc as
necessary ). just changed from where you had a for-each. Dint check
the other parts of your code. The below produces the result you
wanted.

<xsl:template match="map">
               <xsl:if test="count(child::*) &gt; 3 and 
not(starts-with(source,'@'))">
                       <mac:template match="{source[1]}">
                               <xsl:variable name="nestedele"
select="tokenize(target[1],'/')"/>
                               <xsl:call-template name="buildtree">
                                       <xsl:with-param name="position" 
select="1"/>
                               </xsl:call-template>
                       </mac:template>
               </xsl:if>
       </xsl:template>
       <xsl:template name="buildtree">
               <xsl:param name="position"/>
               <xsl:variable name = "element" 
select="tokenize(target[1],'/')[$position]"/>
               <xsl:if test = "string($element)">
                       <mac:element name="{$element}">
                               <xsl:if test="not($position = 1) and 
exists(source[2])">
                                       <mac:attribute 
name="{substring-after(target[$position],'@')}">
                                               <mac:value-of 
select="{source[$position]}"/>
                                       </mac:attribute>
                               </xsl:if>
                               <xsl:call-template name="buildtree">
                                       <xsl:with-param name="position" 
select="$position +1"/>
                               </xsl:call-template>
                                <mac:apply-templates/>
                       </mac:element>
               </xsl:if>
       </xsl:template>

hth
Vasu C

2008/12/1 Ganesh Babu N <nbabuganesh(_at_)gmail(_dot_)com>:
Input XML:

  <map>
     <source>bib-reference</source>
     <source>@id</source>
     <target>reference/citation</target>
     <target>@id</target>
  </map>

Required output:
<xsl:template match="bib-reference">
     <xsl:element name="reference">
       <xsl:element name="citation">
        <xsl:attribute name="id">
           <xsl:value-of select="@id"/>
        </xsl:attribute>
        <xsl:apply-templates/>
     </xsl:element>
  <xsl:element>
 </xsl:template>

My XSLT:
<xsl:template match="map">
<xsl:when test="count(child::*) &gt; 3 and not(starts-with(source,'@'))">
                               <mac:template match="{source[1]}">
                                  <xsl:variable name="nestedele"
select="tokenize(target[1],'/')"/>
                                     <xsl:for-each select="$nestedele">
                                         <xsl:variable name="tem" 
select="."/>
                                               <mac:element name="{$tem}">
                                               <xsl:for-each select="target">
                                                       <xsl:variable 
name="pos" select="position()"/>
                                                       <xsl:if 
test="not(position()=1) and exists(../source[2])">
                                                               
<mac:attribute name="{substring-after(.,'@')}">
                                                                       
<mac:value-of select="{../source[$pos]}"/>
                                                               
</mac:attribute>
                                                       </xsl:if>
                                               </xsl:for-each>
                                               <mac:apply-templates/>
                                       </mac:element>
                                  </xsl:for-each>
                               </mac:template>
                       </xsl:when>
</xsl:template>

This will create one element after the other but it won't create the
nested one. In a result for bib-reference, two elements will be
created with same content. Which is a wrong one. Please guide me how
to generate the nested element structure.

Regards,
Ganesh

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--
Vasu Chakkera
Numerical Algorithms Group Ltd.
Oxford
www.vasucv.com

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