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RE: container list display problem
- From: Wendell Piez <wapiez at mulberrytech dot com>
- To: xsl-list at lists dot mulberrytech dot com
- Cc: "Loren Scherbak" <ScherbakL at aaa dot si dot edu>
- Date: Tue, 07 May 2002 10:40:00 -0400
- Subject: RE: [xsl] container list display problem
- Reply-to: xsl-list at lists dot mulberrytech dot com
Loren,
You could also try a more general approach, using the preceding:: axis --
<xsl:variable name="reelnumber">
<xsl:value-of select="container[@type='reel']"/>
</xsl:variable>
<xsl:variable name="prevreelnumber">
<xsl:value-of select="preceding::container[@type='reel'][1]"/>
</xsl:variable>
<xsl:choose>
<xsl:when test="$reelnumber = $prevreelnumber">
...
Ordinarily, you may want to avoid the preceding axis on the grounds that
it's expensive (it traverses the document back to the beginning); but it's
designed for exactly the kind of application you have. Since you're going
back just to the immediately preceding container[@type='reel'] (as
indicated by the [1] predicate, which means the first in reverse document
order, preceding being a "reverse" axis), however, a smart processor can
optimize the node selection so the traversal isn't so bad.
I think I suggested preceding:: earlier; I don't know why I didn't think of
it last night.
Cheers,
Wendell
At 03:21 PM 5/6/2002, you wrote:
> <xsl:variable name="reelnumber">
> <xsl:value-of select="container[@type='reel']"/>
> </xsl:variable>
><xsl:choose>
> <xsl:when
> test="(../preceding-sibling::c03[1]/did/container[@type='reel']=$reelnumber)
> or
> (../parent::c02/did/container[@type='reel']=$reelnumber)">
>
> <!--Selects cases where the value of the reel
> container is the same as that of a previous
> component. In that case, no column labels are
> added and only the frame number appears
> along with the other component data.-->
======================================================================
Wendell Piez mailto:wapiez@mulberrytech.com
Mulberry Technologies, Inc. http://www.mulberrytech.com
17 West Jefferson Street Direct Phone: 301/315-9635
Suite 207 Phone: 301/315-9631
Rockville, MD 20850 Fax: 301/315-8285
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