Sorting Upper-Case first. Microsoft bug?

Hi!

   I'm not quite sure whether this is a bug in the Microsoft Parser
(Microsoft XML 4.0)
or it's me doing something wrong...

According to the W3C Recommendation:

----------------------->8---------------------->8--------------------------
case-order has the value upper-first or lower-first; this applies when
data-type="text", and specifies that upper-case letters should sort before
lower-case letters or vice-versa respectively. For example, if lang="en",
then A a B b are sorted with case-order="upper-first" and a A b B are sorted
with case-order="lower-first". The default value is language dependent.
----------------------->8---------------------->8--------------------------


I'm trying to sort some xml and I want to show first the elements in upper
case 
and then the ones in lower case. See xml/xsl below:


XML
---

<?xml version="1.0" encoding="iso-8859-1" ?>
<recordset name="">
    <row ReturnValue="0" Store_ID="7" Location="WA4135"  />
    <row ReturnValue="0" Store_ID="5" Location="wA4131"  />
    <row ReturnValue="0" Store_ID="6" Location="WA4133"  />
    <row ReturnValue="0" Store_ID="8" Location="wA4136"  />
    <row ReturnValue="0" Store_ID="9" Location="WA4136"  />
    <row ReturnValue="0" Store_ID="10" Location="WA4138" />
    <row ReturnValue="0" Store_ID="11" Location="WA4139" />
</recordset>


Please note I've changed some of the Location items to 'w' rather than 'W'
(Store_IDs 5 and 8)



XSL:
----

<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>


<xsl:template match="/">
	<recordset>
		<xsl:apply-templates select="recordset/row">
			<xsl:sort select="@Location" data-type="text"
order="ascending" case-order="upper-first"/>
		</xsl:apply-templates>
	</recordset>
</xsl:template>

<xsl:template match="row">
	<row>
		<xsl:for-each select="@*">
			<xsl:attribute name="{name()}">
				<xsl:value-of select="."/>
			</xsl:attribute>
		</xsl:for-each>
	</row>
</xsl:template>


</xsl:stylesheet>


Now... I would expect to see the following result:

<?xml version="1.0" encoding="UTF-16"?>
<recordset>
   <row ReturnValue="0" Store_ID="6" Location="WA4133" />
   <row ReturnValue="0" Store_ID="7" Location="WA4135" />
   <row ReturnValue="0" Store_ID="9" Location="WA4136" />
   <row ReturnValue="0" Store_ID="10" Location="WA4138" />
   <row ReturnValue="0" Store_ID="11" Location="WA4139" />
   <row ReturnValue="0" Store_ID="5" Location="wA4131" />
   <row ReturnValue="0" Store_ID="8" Location="wA4136" />
</recordset>


Lower case 'w' items at the end.



However, what I am getting is:



<?xml version="1.0" encoding="UTF-16"?>
<recordset>
   <row ReturnValue="0" Store_ID="5" Location="wA4131" />
   <row ReturnValue="0" Store_ID="6" Location="WA4133" />
   <row ReturnValue="0" Store_ID="7" Location="WA4135" />
   <row ReturnValue="0" Store_ID="9" Location="WA4136" />
   <row ReturnValue="0" Store_ID="8" Location="wA4136" />
   <row ReturnValue="0" Store_ID="10" Location="WA4138" />
   <row ReturnValue="0" Store_ID="11" Location="WA4139" />
</recordset>


So it seems to be doing the sorting independently of the case and
then when it finds items with the same caracters, it sorts them
according to the case i.e. first upper-case then lower-case.



Is this the expected behaviour?
Is it me missing something here?



Thanks,
Yago

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