I'm attempting to construct a query string ("?param1=blah&param2=blah2",
for example) using the values of a series of tags in an XML document. My
first intuition was to create an XSL variable, and then send the
transformer into a loop which concats each param tag onto that variable.
However, after reading the W3C doc, it doesn't seem like that's feasible
because you can't "shadow" a XSLT variable in the same template context,
and you can't reference the variable you're trying to declare in the
variable definition.  TIA.

  You can create "?a=text&b=&c=&d=more_text" using the stylesheet
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:template match="/">
    <xsl:text>query-string = "</xsl:text>
    <xsl:apply-templates select="foo/*" mode="query"/>
    <xsl:text>"</xsl:text>
  </xsl:template>

  <xsl:template match="*" mode="query">
    <xsl:if test="position() = 1">
      <xsl:text>?</xsl:text>
    </xsl:if>
    <xsl:value-of select="local-name(.)"/>
    <xsl:text>=</xsl:text>
    <xsl:value-of select="string(.)"/>
    <xsl:if test="last() != position()">
      <xsl:text disable-output-escaping="yes"><![CDATA[&]]></xsl:text>
    </xsl:if>
  </xsl:template>
</xsl:stylesheet>

Greg Faron
Integre Technical Publishing Co.