Determining whether a node is contained within another node in XSLT

Question

Is it possible to tell whether a node is contained within (or equal to) another node in XSLT? For example, consider this code snippet:

<xsl:variable name="itemSection" select=".."/>
<xsl:for-each select="key('enemyItems', @key)">
    <xsl:variable name="enemyList" select="./attributes/@value"/>
    <xsl:variable name="enemyListSection" select="../../.."/>
                      .
                      .
                      .
</xsl:for-each>

Is it possible to tell whether itemSection is contained within (or equal to) enemyListSection?

check for Dimitre correct answer. I've missed the "(or equal to)" part. — , Jul 30 '10 at 17:56

score 2 · Accepted Answer · answered Jul 30 '10 at 16:14

2

In XPath 1.0

$itemSection[ancestor::*[generate-id()=generate-id($enemyListSection)]]

In XPath 2.0

$itemSection[ancestor::*[. is $enemyListSection]]

answered Jul 30 '10 at 16:14

See my minor contribution to the correctness of your answer. :) – Dimitre Novatchev Jul 30 '10 at 17:44

score 1 · Answer 2 · answered Jul 30 '10 at 17:41

1

Just a small adjustment to Alejandro's answer:

In XPath 1.0

$itemSection[ancestor-or-self::*[generate-id()=generate-id($enemyListSection)]]

In XPath 2.0

$itemSection[ancestor-or-self::*[. is $enemyListSection]]

Because the original question asked:

Is it possible to tell whether itemSection is contained within (or equal to) enemyListSection?

answered Jul 30 '10 at 17:41

Dimitre Novatchev

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I've missed the important "(or equal to)". Yours is the correct answer. – Jul 30 '10 at 17:55

Determining whether a node is contained within another node in XSLT

2 Answers2