test="count(preceding-sibling::chapter[@value=current()/@value])=1"

Michael Kay

> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Jim_Albright@xxxxxxxxxxxx
> Sent: 10 October 2003 13:59
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  keep 2nd chapter element
> 
> 
> reducing the problem to bare bones I want to keep only some of the 
> "chapter" elements and toss the rest:
>          <chapter id="BCV-MRK-0"  value="0" keep="no"/>
>          <chapter id="BCV-MRK-0"  value="0" keep="no"/>
>          <chapter id="BCV-MRK-1"  value="1" keep="yes"/>
>          <chapter id="BCV-MRK-1"  value="1" keep="no"/>
>          <chapter id="BCV-MRK-1"  value="1" keep="no"/>
>          <chapter id="BCV-MRK-2"  value="2" keep="no"/>
>          <chapter id="BCV-MRK-2"  value="2" keep="yes"/>
>          <chapter id="BCV-MRK-2"  value="2" keep="no"/>
>          <chapter id="BCV-MRK-2"  value="2" keep="no"/>
>          <chapter id="BCV-MRK-3"  value="3" keep="no"/>
>          <chapter id="BCV-MRK-3"  value="3" keep="yes"/>
>          <chapter id="BCV-MRK-3"  value="3" keep="no"/>
>          <chapter id="BCV-MRK-3"  value="3" keep="no"/>
> 
> I have added the keep attribute by hand to show which 
> "chapter"s to keep so I should end with
>          <chapter id="BCV-MRK-1"  value="1" keep="yes"/>
>          <chapter id="BCV-MRK-2"  value="2" keep="yes"/>
>          <chapter id="BCV-MRK-3"  value="3" keep="yes"/>
> 
> 
> <xsl:template match="chapter"  >
>         <xsl:choose>
>         <!--...... if  chapter is zero then toss   .....-->
>                 <xsl:when test="@value='0'">
>                         <!--...... remove chapter 0 .....-->
>                 </xsl:when>
>         <!--...... if very first chapter 1 in book then keep  
>  .....-->
>                 <xsl:when test="@value='1' and 
> preceding::chapter[not(@value='1')]">
>                         <xsl:call-template name="copy-current-node"/>
>                 </xsl:when>
>         <!--...... if second occurrence of same value and 
> value is not 1 
> then keep it  .....-->
>                 <xsl:when test=""><!-- not working yet-->
>                         <xsl:call-template name="copy-current-node"/>
>                 </xsl:when>
>                 <xsl:otherwise>
>                         <!--...... remove duplicate chapter  .....-->
>                 </xsl:otherwise>
>         </xsl:choose>
> </xsl:template>
> 
> 
> Jim Albright
> 704 843-0582
> Wycliffe Bible Translators
> 
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 


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