Re: [xsl] question on preceding nodes

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Hi John,

The XPath Location Path in the test

<xsl:when test="preceding::/*/*/C[@name=current()/@name]">

isn't correct. It shouldn't parse at all (you should get a compile-time error).

Try, simply,

preceding::C[@name=current()/@name]

Since any location path step must be constructed as

axisname::nodetest[optionalpredicate]

and yours has no node test, but rather '/*/*/C' which looks like a location 
path on its own (composed of three steps, child:: axis implicit in each 
step, node tests '*', '*' and 'C'). If this use of jargon suggests to you 
that studying the anatomy of XPath may be worth the time spent -- you're right.

And in general you need to clean up, as in something like

<xsl:template match="C">
  <xsl:value-of select="@name"/>
  <xsl:if test="preceding::C[@name=current()/@name]">
   <xsl:text>_</xsl:text>
    <xsl:value-of select="../@number"/>
  </xsl:if>
</xsl:template>

I hope that helps--

Cheers,
Wendell

At 06:07 PM 3/31/2003, you wrote:
> <xsl:template match="C">
>     <xsl:for-each select="C">
>         <xsl:choose>
>         <xsl:when test="preceding::/*/*/C[@name=current()/@name]">
>             <xsl:value-of select="current()/@name"/>_<xsl:value-of
> select="../BOX/@number"/>
>         </xsl:when>
>         <xsl:otherwise>
>             <xsl:value-of select="current()/@name"/>
>         </xsl:otherwise>
>     </xsl:for-each>
> </xsl:template>
>
> but this never produces the "_2" in "pen_2".
>
> Any tip?


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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
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