Re: [xsl] xpath question

[xslt.new <xslt.new@xxxxxxxxx>]

Hello David;

Thank you for your reply. I am using xslt1.0

> However are you sure you need to process all scene elements out of
> sequence like this?

The reason for me to figure out if <scene> is located under <list1> or
<list2> is because I would like to filter out data based on certain
conditions on the <scene> tag.

So, if I have parameters set1 and set 2 on the style sheet set to
Yahoo and google, I want all elements which have Yahoo and google. If
at the <list1> level itself, this condition fails, then I do not want
to even check if this condition satisfies under <list2>. this is where
I was having difficulty with the xpath, because when I said .//scene,
it matches all <scene> elements under <list1> which includes <list2>
also. I do not want that to happen. How do I achieve this? I am
testing for these conditions under templates <list1> and  <list2>.


<list1>
<text>
<para>
 <scene>
      <set1></set1>
      <set2></set2>
</scene>
</para>
</text>
 <list2>
<text>
<para>
 <scene>
      <set1></set1>
      <set2></set2>

 </scene>
</para>
</text>

<list2>
</list1>

<list1>
<text>
<para>
 <scene>
      <set1></set1>
      <set2></set2>
</scene>
</para>
</text>
 <list2>
<text>
<para>
 <scene>
      <set1></set1>
      <set2></set2>

 </scene>
</para>
</text>

<list2>
</list1>


On 1/24/07, David Carlisle <davidc@xxxxxxxxx> wrote:
> I can't remember if you are using xslt2 or xslt1, a direct encoding of
>
> > if I want to locate only the <scene>
> > element under ALL<list1> elements in the whole XML input inside the
> > <list1> template, and NOT the <scene> element under <list2>,
>
> in xpath2 would be
>
> .//scene except .//list2//scene
>
> in xpath1 you could use
>
> .//scene[not(ancestor::list2)]
>
> (which doesn't mean quite the same thing in general but will select the
> same things so long as list1 is never a descendent of list2.
>
> However are you sure you need to process all scene elements out of
> sequence like this?
>
> more commonly in xslt you woul djust have a tempolate for scene elements
>
> <xsl:tempate match="scene">...
>
> and a higher priority template for scenes under list2
>
>
> <xsl:tempate match="list2//scene">...
>
> and so don't need to explictly select those scenes which are under list1
> but not under list2, they automatically are matced by the first
> template.
>
> David
>
> Please read the posting guidelines for this list which advise you not to
> use subject lines such as  "xpath question" which could apply to most of
> teh postings on this list.