Re: [xsl] duplicate problem..

["J.Pietschmann" <j3322ptm@xxxxxxxx>]

Paul Tomsic wrote:

> I'm looping across:
>   <Chapter_group>
>     <Chapter id="7" isbn="0-324-12175" name="Data And
> Statistics" original_number="0" page_count="25" />
>     <Chapter id="8" isbn="0-324-12175" name="Data And
> Statistics" original_number="1" page_count="25" />
>     <Chapter id="9" isbn="0-324-12175"
> name="Descriptive Statistics: Tabular And Graphical
> Methods" original_number="2" page_count="53" />
>  </Chapter_group>
>
> with this:
> 	<xsl:variable name="unique-chapter-name-list"
> select="//Chapter_group/Chapter[not(./@name =
> following::./@name)]"/>
            ^^
This is not legal XPath syntax, you should have gotten an
error message. The ./ is redundant too. Try
  <xsl:variable name="unique-chapter-name-list"
    select="//Chapter_group/Chapter[not(@name =
     following::Chapter/@name)]"/>

Depending on your source and context, the following might
perform better (no // in front of the Cahpter_Group, and
using following-sibling):
  <xsl:variable name="unique-chapter-name-list"
    select="Chapter_group/Chapter[not(@name =
     following-sibling::Chapter/@name)]"/>

J.Pietschmann


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