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[xsl] Using outer context node inside for-each

2009-07-08 13:32:06
Hi there,

Here is an abstraction of my problem template:

 <xsl:template match="record">
   <xsl:param name="show-fields" />
   <xsl:variable name="this" select="." />

   <xsl:for-each select="str:tokenize($show-fields)">
     <xsl:message><xsl:value-of select="$this/field[(_at_)name=(_dot_)]" 
/></xsl:message>
   </xsl:for-each>
 </xsl:template>

So <record> elements have child elements called <field> which each
have a @name attribute.

The given template should accept a parameter which is a list of field
names, and emit an <xsl:message> of each <field> element whose @name
is in that list.

I'm pretty sure that using the $this variable as a node set isn't the
problem, because the following works fine:

<xsl:message><xsl:value-of select="$this/field[(_at_)name='some-field']" 
/></xsl:message>

I'm also pretty sure that the current node (.) inside the for-each is
the field name from the list. But I'm pretty certain that the problem
is something to do with testing @name against . in that XPath
predicate.

I'm using libxslt 1.1.24 (and its str:tokenize implementation).

Any ideas?
-- 
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Richard Lewis
ISMS, Computing
Goldsmiths, University of London
Tel: +44 (0)20 7078 5134
Skype: richardjlewis
JID: ironchicken(_at_)jabber(_dot_)earth(_dot_)li
http://www.richard-lewis.me.uk/
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