given
<root>
<chapter><title>C1</title>
<wrapper>
<wrapper>
<section><title>S1</title></section>
</wrapper>
<section><title>S2</title>
<section><title>S3</title>
</section>
</section>
</wrapper>
</chapter>
</root>
(I moved /chapter to the end?)
and
<xsl:stylesheet version="3.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="chapter">
<xsl:message select="
let $here:=. return
.//section[empty(ancestor::*[title] except
$here/ancestor-or-self::*[title])]/title
"/>
</xsl:template>
</xsl:stylesheet>
the xpath in the message produces
<title>S1</title><title>S2</title>
David
On Mon, 24 Dec 2018 at 21:13, Graydon graydon(_at_)marost(_dot_)ca
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
On Mon, Dec 24, 2018 at 08:57:40PM -0000, Eliot Kimber
ekimber(_at_)contrext(_dot_)com scripsit:
Using XPath 3:
[snip]
Given a starting node, e.g., the root node (but could be any node in the
hierarchy) I need to find the first titled "child" nodes, so given the
chapter node I need to find S1 and S2 but not S3.
If you meant:
<root>
<chapter><title>C1</title>
<wrapper>
<wrapper>
<section><title>S1</title>
</section>
</wrapper>
<section><title>S2</title>
<section><title>S3</title>
</section>
</section>
</wrapper>
</chapter>
</root>
then
//descendant::*[self::section][title][not(ancestor::*[self::section][title])]
will give you the first titled element of the type you're looking for.
You'll need to put the actual values for "foo" and "bar" in where there's a
predicate for [self::section]; [self:foo or self::bar]
-- Graydon
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