Re: [xsl] checking sequential element

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Hi,

Personally, I'd put the test on the citau element itself:

<xsl:template match="citau">
  <xsl:if test="not(following-sibling::*[1]/self::delim)">
    <xsl:message>citau does not followed by delim</xsl:message>
  </xsl:if>
</xsl:template>

This has the following advantages:

* It expresses the requirement directly (a 'citau' must be followed 
by a 'delim')
    and therefore more legibly
* It is more robust (it doesn't matter where the citau is; it doesn't
    report a false positive if a 'citau' is not found; it doesn't fail
    to report if two are found and one has a 'delim')

As so often, the theoretical and the practical advantages reflect one another.

Cheers,
Wendell

At 02:29 AM 12/31/2008, it was written:
> I think, you should do
>
> <xsl:template match="citref">
>   <xsl:if test="not(citaug/citau/following-sibling::*[1]/self::delim)">
>     <xsl:message>citau does not followed by delim</xsl:message>
>   </xsl:if>
> </xsl:template>
>
> you were missing a 'not' and one missing level.
>
> On Wed, Dec 31, 2008 at 12:00 PM, Ganesh Babu N <nbabuganesh@xxxxxxxxx> wrote:
> > Dear All,
> >
> > I want to test the presence of <delim/> tag after </citau> in the
> > below example. If it is missing the XSL should raise an error.
> >
> > <citref id="bib12">
> >  <citaug>
> >  <citau>
> >   <citsname>Ferri</citsname>
> >   <delim/>
> >   <citfnames>E</citfnames>
> >  </citau>
> >  <delim/>
> >  <cittext>(ed.).</cittext>
> > </citaug>
> >
> > I have tried the following code but i am not getting the required result.
> >
> > <xsl:template match="citref">
> >  <xsl:if test="citau/following-sibling::*[1]/self::delim">
> >  <xsl:message>citau does not followed by delim</xsl:message>
> >  </xsl:if>
> > </xsl:template>
> >
> > Please help me in getting the desired result.


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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
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