Subject: Re: [xsl] Displaying Unique attribute value From: David Carlisle <davidc@xxxxxxxxx> Date: Fri, 3 Oct 2008 14:26:06 +0100 |
muenchian grouping is your friend. add <xsl:key name="page" match="*[@page-num]" use="@page-num"/> then to test if the current node is the first node with a given page-num you just need <xsl:if test="generate-id(.)=generate-id(key('page',@page-num)[1])"> ... as the key will return all the nodes with the current page-num, and the generate-id test tests that the current node is the first of those in document order. To comment on your posted code <xsl:template match="/"> <xsl:for-each select="@page-num"> / is the document root so has no attributes so this is iterating over the empty node set and will therefore do nothing. You could change it to <xsl:for-each select="//*@page-num"> but the above key is likely to be a lot more efficient than building a list of unique pages before starting. David ________________________________________________________________________ The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is: Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. ________________________________________________________________________
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