Re: Re: Re: Adjusting sorted list

Andrew Timberlake <andrew dot lists at ddd dot co dot za> wrote:

> 
> I've been playing with this idea and have created an interesting side
> effect.
> 
> Using source:
> <root>
> 	<a>
> 	    <b val="4">four</b>
> 	    <b val="9">nine</b>
> 	    <b val="6">six</b>
> 	    <b val="1">one</b>
> 	    <b val="8">eight</b>
> 	    <b val="6">six</b>
> 	    <b val="4">four</b>
> 	    <b val="7">seven</b>
> 	</a>
> 	<a>
> 	    <b val="9">nine</b>
> 	    <b val="5">five</b>
> 	    <b val="5">five</b>
> 	</a>
> </root>
> 
> And style sheet:
> <xsl:stylesheet version="1.0" 
>  xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
>  
>  <xsl:output omit-xml-declaration="yes" indent="yes"/>
>  
>  <xsl:key name="kRanking" match="b" use="@val"/>
>  
>   <xsl:template match="/root/a">
>     <a>
>      <xsl:for-each select="b[generate-id() 
>                               = 
>                                generate-id(key('kRanking',@val)[1])
>                                ]">
>        <xsl:sort select="@val" data-type="number"/>
>        
>        <xsl:variable name="vPos" select="position()"/>
>        
>        <xsl:for-each select="key('kRanking',@val)">
>          <b rank="{$vPos}">
>            <xsl:value-of select="."/>
>          </b>
>        
>        </xsl:for-each>
>      </xsl:for-each>
>     </a>
>   </xsl:template>
> </xsl:stylesheet>
> 
> I now get:
> <a>
> 	<b rank="1">one</b>
> 	<b rank="2">four</b>
> 	<b rank="2">four</b>
> 	<b rank="3">six</b>
> 	<b rank="3">six</b>
> 	<b rank="4">seven</b>
> 	<b rank="5">eight</b>
> 	<b rank="6">nine</b>
> 	<b rank="6">nine</b>
> </a>
> <a>
> 	<b rank="1">five</b>
> 	<b rank="1">five</b>
> </a>
> 
> What have I done???
> 
> Andrew

Just try this one:

<xsl:stylesheet version="1.0" 
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 
 <xsl:output omit-xml-declaration="yes" indent="yes"/>
 
 <xsl:key name="kRanking" match="b" use="@val"/>
 
  <xsl:template match="/root/a">
    <xsl:variable name="theParentId" select="generate-id()"/>
    <a>
     <xsl:for-each select="//b[generate-id() 
                              = 
                               generate-id(key('kRanking',@val)[1])
                               ]">
       <xsl:sort select="@val" data-type="number"/>
       
       <xsl:variable name="vPos" select="position()"/>
       
       <xsl:for-each select="key('kRanking',@val)">
       <xsl:if test="generate-id(ancestor::*[1]) = $theParentId">
         <b rank="{$vPos}">
           <xsl:value-of select="."/>
         </b>
       </xsl:if>
       </xsl:for-each>
     </xsl:for-each>
    </a>
  </xsl:template>
</xsl:stylesheet>

With your new sorce xml it produces the correct result:


	<a>
   <b rank="1">one</b>
   <b rank="2">four</b>
   <b rank="2">four</b>
   <b rank="4">six</b>
   <b rank="4">six</b>
   <b rank="5">seven</b>
   <b rank="6">eight</b>
   <b rank="7">nine</b>
</a>
	
<a>
   <b rank="3">five</b>
   <b rank="3">five</b>
   <b rank="7">nine</b>
</a>



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