At 2008-10-17 13:47 +0100, Rowan Sylvester-Bradley wrote:
You'll find a description of an XSLT 2.0 stylesheet that does this (and some
other things besides) at
http://www.idealliance.org/proceedings/xml04/papers/111/mhk-paper.html
Michael Kay
http://www.saxonica.com/
Thanks to Michael and Ken for your replies. I've now got it more or
less working using xsl:for-each-group. However, I've got another
problem that I can't quite work out. Each of the main elements in
the result file needs to have a unique ID attribute.
An ID attribute value must be a name token, so your "1","2",... won't
be correct. But you could use something like "N1","N2",...
So if my source file is:
<mytree>
<node>
<name>Root of my tree</name>
<level>0</level>
</node>
<node>
<name>Child of root</name>
<level>1</level>
</node>
<node>
<name>Another child of root</name>
<level>1</level>
</node>
<node>
<name>Grandchild of root</name>
<level>2</level>
</node>
<node>
<name>Yet another child of root</name>
<level>1</level>
</node>
</mytree>
I want to transform this into this:
<newnode id="1">
<name>Root of my tree</name>
<newnode id="2">
<name>Child of root</name>
</newnode>
<newnode id="3">
<name>Another child of root</name>
<newnode id="4">
<name>Grandchild of root</name>
</newnode>
</newnode>
<newnode id="5">
<name>Yet another child of root</name>
</newnode>
</newnode>
I.e. the id attributes just keep incrementing regardless of the hierarchy.
How do I generate the values of these id attributes?
Assuming the current node is <node>, then <xsl:number/> can be used
without attributes to count the current node amongst its siblings in
the source tree:
<xsl:attribute name="id">N<xsl:number/></xsl:attribute>
The "video sample lesson" link in my trailer below is the YouTube
copy of my lesson on <xsl:number/> if you need to make changes.
I hope this helps.
. . . . . . . . . . . . Ken
--
Upcoming XSLT/XSL-FO hands-on courses: Wellington, NZ 2009-01
Training tools: Comprehensive interactive XSLT/XPath 1.0/2.0 video
Video sample lesson: http://www.youtube.com/watch?v=PrNjJCh7Ppg
Video course overview: http://www.youtube.com/watch?v=VTiodiij6gE
G. Ken Holman mailto:gkholman(_at_)CraneSoftwrights(_dot_)com
Crane Softwrights Ltd. http://www.CraneSoftwrights.com/s/
Male Cancer Awareness Nov'07 http://www.CraneSoftwrights.com/s/bc
Legal business disclaimers: http://www.CraneSoftwrights.com/legal
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