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Stanislav PejE!a wrote:
my input xml file looks like this:[snip] desired output: Here is a sample stylesheet that uses xsl:for-each-group starting-with inside a function that takes the b_part elements, a list of patterns and a list of element names as it arguments: <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:mf="http://example.com/2009/mf" exclude-result-prefixes="xs mf" version="2.0"> <xsl:output indent="yes"/> <xsl:strip-space elements="*"/> <xsl:function name="mf:group" as="element()*"> <xsl:param name="parts" as="element()*"/> <xsl:param name="patterns" as="xs:string*"/> <xsl:param name="names" as="xs:string*"/> <xsl:for-each-group select="$parts" group-starting-with="b_part[matches(level_name, $patterns[1])]"> <xsl:element name="{$names[1]}"> <title><xsl:value-of select="level_name"/></title> <xsl:choose> <xsl:when test="$patterns[2]"> <xsl:sequence select="mf:group(current-group() except ., $patterns[position() gt 1], $names[position() gt 1])"/> </xsl:when> <xsl:otherwise> <xsl:apply-templates select="current-group() except ."/> </xsl:otherwise> </xsl:choose> </xsl:element> </xsl:for-each-group> </xsl:function> <xsl:template match="book"> <xsl:copy> <xsl:copy-of select="title"/> <toc> <p>Table of contents</p> <xsl:sequence select="mf:group(b_part, ('^Chapter', '^(Section|[A-Z]\))'), ('chapter', 'section'))"/> </toc> </xsl:copy> </xsl:template> <xsl:template match="b_part">
<part>
<title><xsl:value-of select="level_name"/></title>
</part>
</xsl:template></xsl:stylesheet> When run with Saxon 9.1 the output is <book>
<title>SomeTitle</title>
<toc>
<p>Table of contents</p>
<chapter>
<title>Chapter I: Title of Chapter I</title>
<section>
<title>Section 1: Title of section 1</title>
<part>
<title>Part 1: Title of Part 1</title>
</part>
<part>
<title>Part 2: Title of Part 2</title>
</part>
<part>
<title>Part n: Title of Part n </title>
</part>
</section>
<section>
<title>Section 2: Title of Part 2</title>
<part>
<title>Part 1: Title of Part 1</title>
</part>
<part>
<title>Part n: Title of Part n</title>
</part>
</section>
</chapter>
<chapter>
<title>Chapter II: Title of Chapter II</title>
<section>
<title>A) Title of Section A</title>
<part>
<title>A/1 Title of Part 1</title>
</part>
<part>
<title>A/n Title of Part n</title>
</part>
</section>
<section>
<title>B) Title of Section A</title>
<part>
<title>B/1 Title of Part 1</title>
</part>
<part>
<title>B/n Title of Part n</title>
</part>
</section>
</chapter>
</toc>
</book>which I think is the structure you want, only indented. -- Martin Honnen http://msmvps.com/blogs/martin_honnen/
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