The general solution to this kind of problem is to use
<xsl:apply-templates> on each node, in the normal, way, except that
instead of selecting the physical children of a node, you select the
logical children. In your case the logical children are obtained by
<xsl:variable name="this" select="."/>
<xsl:apply-templates
select="following-sibling::node[(_at_)level=$this/@level+1 and
generate-id($this) =
generate-id(preceding-sibling::node[(_at_)level=$this/@level]]"/>
Michael Kay
-----Original Message-----
From: owner-xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
[mailto:owner-xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com] On Behalf Of
Marcus Zelezny
Sent: 02 December 2003 10:41
To: XSL-List(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] HOWTO: convert flat list w/ level information
to a hierarchial one?
Dear XSLT Community!
I couldn't solve a problem of class "flat file transform".
From (@name, just for illustration) flat file with @level
information: <node> <node level="0" type="c"
name="toplevel"/> <node level="1" type="i" name="1. item"/>
<node level="1" type="c" name="2. container"/> <node
level="2" type="i" name="2.1 item"/> <node level="2"
type="i" name="2.2 item"/> <node level="1" type="i" name="3.
item"/><!-- implicit close of previous container --> <node
level="1" type="c" name="4. container"/> <node level="2"
type="i" name="4.1 item"/> <node level="2" type="c"
name="4.2 container"/> <node level="3" type="i" name="4.2.1
item"/> </node>
<!--
@type = 'c' ... container
@type = 'i' ... Item
-->
transform to:
<node>
<node type="c" name="toplevel">
<node type="i" name="1. item"/>
<node type="c" name="2. container"/>
<node type="i" name="2.1 item"/>
<node type="i" name="2.2 item"/>
</node>
<node type="i" name="3. item"/>
<node type="c" name="4. container">
<node type="i" name="4.1 item"/>
<node type="c" name="4.2 container"/>
<node type="i" name="4.2.1 item"/>
</node>
</node>
</node>
</node>
What I tried:
Calling recursively a template with passing parameters $node,
$last-level, but I failed to leave recursion in a proper way;-(
Any pointer|hint|solution for a (ideally) XSLT1.0 approach is
highly appreciated!
Thanks in advance
Marcus
P.S. I read http://www.dpawson.co.uk/xsl/sect2/flatfile.html
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