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Old December 21st, 2011, 04:24 PM
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Question range expressions in xslt 2.0

Given the following xml:

<page pagenumber="1" />
<page pagenumber="2"/>
<page pagenumber="3"/>
<page pagenumber="4"/>
<page pagenumber="7"/>
<page pagenumber="8"/>	
<page pagenumber="9"/>
<page pagenumber="10"/>
how can I capture this as two groups of adjacent pages (i.e. 1-4 and 7-10)? Thank you!
Old December 22nd, 2011, 02:40 PM
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There' a neat trick for this invented by David Carlisle:

<xsl:for-each-group select="page" group-adjacent="@pagenumber - position()">
Michael Kay
Author, XSLT 2.0 and XPath 2.0 Programmer\'s Reference

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