Select the first descendant that meets a condition

bonekrusher · June 24th, 2010, 08:48 AM

Hi,

I am trying to select the first descendant that meets a condition.

For example:

Code:

<data>
    <dmodule>
        <content>
            <descript/>
        </content>
    </dmodule>
    <dmodule>
        <content>
            <proced>
                <prelreqs/>
            </proced>
        </content>
    </dmodule>
    <dmodule>
        <content>
            <proced>
                <prelreqs/>
            </proced>
        </content>
    </dmodule>
</data>

if my context node is <data> and I want to process only the first <prelreqs> that is a descendant of data.

I have tried:

Code:

<xsl:apply-templates select="dmodule[descendant::prelreqs[1]]/content/proced/prelreqs"/>

but this processes all the first prelreqs that are descendants of dmodule.

Thanks for the help.

Martin Honnen · June 24th, 2010, 08:53 AM

Why not simply

Code:

<xsl:apply-templates select="descendant::prelreqs[1]"/>

? That seems to be the direct "translatation" of your English description into an XPath.

bonekrusher · June 24th, 2010, 09:54 AM

Thank you the help. I was over thinking it.