Re: [xsl] Conditionally compare dates from two XML docs?

[Jeni Tennison <jeni@xxxxxxxxxxxxxxxx>]

Hi Damian,

> How do I access the 'date1' from the original source tree, now that
> I'm processing the external document 'AddNews.xml'? i.e, change
> context from one document to another?

Store it in a variable before you change the context:

  <xsl:variable name="date1" select="date1" />
  <xsl:for-each select="document('AddNews.xml')/newsindex/entry">
    <xsl:if test="number($date1) = number(date2)">
      <xsl:value-of select="headline"/>
    </xsl:if>
  </xsl:for-each>

Or, if that's the totality of your <xsl:for-each>, you could use a
predicate and the current() function instead, and do:

  <xsl:for-each select="document('AddNews.xml')/newsindex/entry
                          [date2 = current()/date1]">
    <xsl:value-of select="headline" />
  </xsl:for-each>

In an XPath predicate, the current() function gets you the current
node -- the node that you're processing outside the XPath.
  
Cheers,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/


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