CODEWITHSUNDEEP
xsltxpathxslt-1.0
sgc
sgc

Reputation: 45

XSLT 1.0: selecting based on attribute of preceding siblings of current() node

I have a base xml file like:

<base>
     ...
     <s l="something" />
     <s l="somethingelse" />
     <s>
     ...
</base>

In my xslt, I use the document() function on each <s> to pull in another file structured like:

<otherbase>
     ...
     <r l="something" />
     <r l="somethingelse" />
     <r l="evenmore" />
     ...
</otherbase>

At <s> in the base file, I am trying to select all <r>s whose @l does not match any preceding-sibling::*/@l of the current <s>. Thus for the third <s> with no attribute, it would match <r l="evenmore" /> etc.

Something like:

<xsl:for-each select="document('mydoc.xml')//r[@l != preceding-sibling::*/@l]"> 
     ...
</xsl:for-each>

would work if I were matching within the <r> attributes I believe, but I need preceding-siblings of current() ... I haven't been able to figure out the syntax.

Unfortunately there are no 2.0 processors in my environment, stuck in xslt 1.0.

Upvotes: 1

Views: 544

Answers (1)

michael.hor257k
michael.hor257k

Reputation: 116992

You need to use the current() function when you want to refer to the current s node within a predicate. Try:

select="document('mydoc.xml')//r[not(@l = current()/preceding-sibling::s/@l)]"

Note also the difference between $a != $b and not($a = $b).

Upvotes: 1

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