Ignore case while grouping

Hi All,

Just to add one more issue in my previous problem. Is it possible to
ignore case while grouping using for-each-group.

For example by using below XSLT-
<School>
<xsl:for-each-group select=" School/student group-by="name/tokenize(.,
';\s*')">
<xsl:sort data-type="number" select="count(current-group())"
order="descending" />
<xsl:sort select="current-grouping-key()"/>
<xsl:if test="position()<=3">
<name count="{count(current-group())}">
<xsl:value-of select="current-grouping-key()"/>
</name>
</xsl:if>
</xsl:for-each-group>
</School>

Where input xml is-
input XML

<?xml version="1.0" encoding="ISO-8859-1"?>
<School>
<student rec='1'>
<name>Robart J</name>
</student>
<student rec='2'>
<name>Robart J</name>
</student>
<student rec='3'>
<name> ROBART J </name>
</student>
<student rec='4'>
<name>ROBART J</name>
</student>
</School>


The output I m getting is :
<School>
<name count='2'>Robart J</name>
<name count='2'>ROBART J</name>
</School>

Please have a look into the  value of nodes <name>.It is very clear
value of both name nodes are same but different in case(one is Robart J
and other is ROBART J) .

But I want the output to come like this-
<School>
<name count='4'>Robart J</name>
</School>

Is there any way to ignore case while grouping the nodes?


Thanks in advance.

Manish



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