XSQL to XSL params passing problem

Question

I'm trying to pass some parameters from XSQL to processing XSL, but I am unable to pass string constants. To make it clear:
XSQL:
<?xml version="1.0" ?>
<?xml-stylesheet type="text/xsl" href="some.xsl" ?>
<qry xmlns:xsql="urn:oracle-xsql" connection="orcl8">
<xsql:set-stylesheet-param name="from" value="{@f}" />
<xsql:set-stylesheet-param name="where" value="{@w}" />
<xsql:set-stylesheet-param name="orderby" value="{@o}" />
<xsql:query max-rows="{@mr}" skip-rows="{@sr}" null-indicator="yes">
<![CDATA[
select * from {@f} where {@w} order by {@o}
]]>
</xsql:query>
</qry>
XSL (most of code omitted to save space):
SELECT * FROM <xsl:value-of select="$from"/>
WHERE <xsl:value-of select="$where"/>
ORDER BY <xsl:value-of select="$orderby"/>
If I pass w=FIELD='some string' (and even when I use &apos; ) all parameters passed to the XSL come empty. Everything without apostrophes comes in just fine, but appearance of apostrophes or their escaped equivalents causes all parameters to get in empty. Query is executed correctly though.
Am I doing something wrong or there's a bug in XSQL processor (or maybe what I'm trying to do is simply impossible - I just started to learn XML/XSLT and not sure I'm getting everything right...)?
regards,
Bob.
null

Answer 1

In my xsql I run various SQL statements. Some of these select configuration type details for that user/session. So the returned XML includes business data and some configuration data.
My main XSL uses these values to determine which templates to process. I use xsl:choose.
It does mean a big choose statement but it works fine.
Matt