It looks like XML tags in my posts have been filtered by hotmail, so
I'm reposting.
2008/4/5, Dolmen ! <dolmen(_at_)hotmail(_dot_)com>:
Hi,
Short:
How can i sort a nodeset returned by key(), store it in a variable,
and still be able to compare its nodes with nodes of the original
document ?
Long:
This is a transformation of my data set to an HTML table using rowspans.
I'm sorting my data, then I'm using a Muenchian grouping to group rows.
My problem is that the order of my sorted node set is not the same as
the order of the nodeset returned by key(). I have not found how to
reliably distinguish the first node of the group to output the
grouping cells in the right place.
I'm using xsltproc (from libxslt)
Here is an example using Steve Muench's data from
http://www.dpawson.co.uk/xsl/sect2/N7450.html#d11343e31
If I remove this sort, the XHTML, is clean, but the table is not sorted.
<demo>
<salesman id="0001" name="Rick Peterson">
<account id="act001" region="Midwest">Johnosn's Laundry</account>
<account id="act002" region="Canada">Franks's Laundry</account>
<account id="act003" region="Alaska">Mary's Laundry</account>
<account id="act004" region="New Jersey">Bill's Laundry</account>
<account id="act005" region="Midwest">Hammond's Laundry</account>
</salesman>
<salesman id="0003" name="Ty Coon">
<account id="act006" region="Canada">Franks's Diner</account>
<account id="act007" region="Midwest">Johnosn's Diner</account>
<account id="act008" region="Canada">Hammond's Diner</account>
<account id="act009" region="Alaska">Mary's Diner</account>
<account id="act010" region="Alaska">Bill's Diner</account>
</salesman>
</demo>
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="xml" indent="yes" encoding="UTF-8"
doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";
omit-xml-declaration="yes" />
<xsl:strip-space elements="*"/>
<!--
The output is completely broken as the result of key() is not in
the same order as the for-each node set.
-->
<xsl:key name="accounts-by-region" match="/demo/salesman/account"
use="@region"/>
<xsl:template match="/demo">
<html>
<head><title>Accounts ordered by region</title></head>
<body>
<table border="1" valign="top">
<tr><th>Region</th><th>Account</th></tr>
<xsl:for-each select="salesman/account">
<xsl:sort select="@region"/>
<xsl:sort select="."/>
<xsl:variable name="brand-model" select="concat(brand, '
', model)"/>
<tr>
<xsl:if test="count(. | key('accounts-by-region',
@region)[1]) = 1">
<td><xsl:attribute name="rowspan"><xsl:value-of
select="count(key('accounts-by-region',
@region))"/></xsl:attribute><xsl:value-of select="@region"/></td>
</xsl:if>
<td><xsl:value-of select="."/></td>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
Olivier Mengué.
http://o.mengue.free.fr/
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