The XSLT 1.0 specification does not define the precise rules for
collating strings, in fact it makes it quite clear that the rules are
implementation-defined. In real life, there are many different ways
people handle spaces and punctuation when compiling lists in
alphabetical order, and there is no right answer.
Michael Kay
Software AG
home: Michael(_dot_)H(_dot_)Kay(_at_)ntlworld(_dot_)com
work: Michael(_dot_)Kay(_at_)softwareag(_dot_)com
-----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
Stan Dyck
Sent: 06 February 2003 17:01
To: XSL-List(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Is this a sorting bug in xalan 6.4.0?
Can anyone explain this apparent bug in xalan 2.4.0? Given...
<NameList>
<Record><Name>A</Name></Record>
<Record><Name>AAL</Name></Record>
<Record><Name>Amanda</Name></Record>
<Record><Name>Amy</Name></Record>
<Record><Name>A Maureen</Name></Record>
</NameList>
...and applying the following stylesheet...
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" indent="yes"/>
<xsl:variable name="lower" select="'abcdefghijklmnopqrstuvwxyz'"/>
<xsl:variable name="upper" select="'ABCDEFGHIJKLMNOPQRSTUVWXYZ'"/>
<xsl:template match="NameList">
<xsl:comment><xsl:value-of
select="system-property('xsl:vendor')"/>
</xsl:comment>
<table>
<xsl:apply-templates select="Record">
<xsl:sort select="translate(Name,
$lower, $upper)"/>
</xsl:apply-templates>
</table>
</xsl:template>
<xsl:template match="Record">
<tr><td><xsl:value-of select="Name"/></td></tr>
</xsl:template> </xsl:stylesheet>
I get...
<!--Apache Software Foundation--><table>
<tr>
<td>A</td>
</tr>
<tr>
<td>AAL</td>
</tr>
<tr>
<td>Amanda</td>
</tr>
<tr>
<td>A Maureen</td>
</tr>
<tr>
<td>Amy</td>
</tr>
</table>
...using xalan, and (for example)...
<!--SAXON 6.4.1 from Michael Kay--><table>
<tr>
<td>A</td>
</tr>
<tr>
<td>A Maureen</td>
</tr>
<tr>
<td>AAL</td>
</tr>
<tr>
<td>Amanda</td>
</tr>
<tr>
<td>Amy</td>
</tr>
</table>
...using saxon. It looks like xalan is removing the space between "A"
and "Maureen", causing it to sort below Amanda. It looks like
a bug to
me, agreed? I couldn't find similar examples on either this list's
archives or on xalan's bug list.
Stan Dyck
sgd(_at_)standyck(_dot_)com
p.s. Note, I can work around the bug by replacing my upper and lower
variables with...
<xsl:variable name="lower" select="'
abcdefghijklmnopqrstuvwxyz'"/> <xsl:variable name="upper"
select="'_ABCDEFGHIJKLMNOPQRSTUVWXYZ'"/>
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