[xsl] Mods and Looping

["gary cor" <stuff4gary at hotmail dot com>]

Dear all,

I have been writing a template which allows me to process columns of content 
blocks in HTML across the page at different modulus.  It works fine but I 
would very much like to use a loop to optimise the code and apply a blocks 
at any modulus, can anyone give me any pointers on how I go about doing 
this? The template that I think needs a loop is the following code (I also 
wonder at what point it would be more efficient to write a loop, how many 
mod!)...


<xsl:template name="mod">
   <xsl:param name="padding">3</xsl:param>
   <xsl:param name="number">1</xsl:param>
   <xsl:param name="node" select="image"/>
   <xsl:choose>
       <xsl:when test="$number='2'">
           <table xsl:use-attribute-sets="table.0">
               <tr>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 1]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 0]"/>
                   </td>
               </tr>
           </table>
       </xsl:when>
       <xsl:when test="$number='3'">
           <table xsl:use-attribute-sets="table.0">
               <tr>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 1]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 2]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 0]"/>
                   </td>
               </tr>
           </table>
       </xsl:when>
       <xsl:when test="$number='4'">
           <table xsl:use-attribute-sets="table.0">
               <tr>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 1]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 2]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 3]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 0]"/>
                   </td>
               </tr>
           </table>
       </xsl:when>
       <xsl:when test="$number='5'">
           <table xsl:use-attribute-sets="table.0">
               <tr>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 1]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 2]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 3]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 4]"/>
                   </td>
                   <td>
                       <xsl:call-template name="spacer">
                           <xsl:with-param name="width">
                               <xsl:value-of select="$padding + 2"/>
                           </xsl:with-param>
                       </xsl:call-template>
                   </td>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 
$number = 0]"/>
                   </td>
               </tr>
           </table>
       </xsl:when>
       <xsl:otherwise>
           <table xsl:use-attribute-sets="table.0">
               <tr>
                   <td valign="top">
                       <xsl:apply-templates select="$node[position() mod 1 
= 0]"/>
                   </td>
               </tr>
           </table>
       </xsl:otherwise>
   </xsl:choose>
</xsl:template>

Many thanks for any help in advance

G.



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