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Re: [xsl] Pipe Question

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So,
If match is "A" and "B" like this:
<match>A</match>
<match>B</match>

Then the following will match X who's component attributes is either
an "A" or "B" value:

<xsl:template select="X[@component=$match]"/>

And if the parameter match is not supplied, then the following will
match all X who either have or do not have a component attribute that
matches match:

<xsl:template select="X[@component=$match] | X[not(@component='$match')]"/>


I don't understand:
>  <xsl:apply-templates select=
>    "$yourNodeSet[$match][@sComponentObjectName=$match]
Specifically the first predicate $match, followed the the next
predicate.  I don't understand the how/why of that.

Also, I question the param *default* select.  I don't understand how
(and using the match param as an example) to write the select in such
a way that I would not be selecting the doc source.  So:

<xsl:template match="X">
<xsl:param name="match" select="/"/>

If this above template rule aplies, but no match param has been
passed, the match becomes the document source?  This does not work for
me... I need this select to either evaluate to the "root" of the RTF
passed into match or nothing.  For 2 reasons (1) XSLT1.0 requires that
you supply a "select" if you plan on treating the param as a node-set
later and (2) I may not know or care of the actual structure of the
node-set passed.  There was one more point, but it slipped my mind.
If I recall, I will follow up.

Thanks,
Karl..


On 6/7/05, Dimitre Novatchev <dnovatchev@xxxxxxxxx> wrote:
> On 6/8/05, Karl Stubsjoen <kstubs@xxxxxxxxx> wrote:
> > How could I use a pipe for this predicate to specifiy the inclusion of
> > ALL where $match does not exist (is empty)?
>
> What is "a pipe for a predicate"?
>
> XPath certainly does not define such thing.
>
> >
> > [@sComponentObjectName=$match]
> >
> > This written out verbose would be:
> >
> > <xsl:choose>
> >  <xsl:when test="$match">
> >     ... apply-templates with above predicate ...
> >  </xsl:when>
> >  <xsl:otherwise>
> >    ... apply-templates without above predicate ...
> >  </xsl:otherwise>
> > </xsl:choose>
>
>
> The abbreviated form of the above (if I understand it well) is:
>
>  <xsl:apply-templates select=
>    "$yourNodeSet[$match][@sComponentObjectName=$match]
>   |
>     $yourNodeSet[not($match)]
>   "/>
>
>
> Cheers,
> Dimitre Novatchev

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