how to check if a string variable is comma delimited in XSL? - html

Question

I need to test if a xsl variable contains just one word or multiple comma separated words in xslt.
since the variable is dynamic, its a parameter that maps to url querystring which can either be sth like this:
index.aspx?role=manager
or
index.aspx?role=manager,director
in XSLT, i need to find out if the $role parameter is just one word or multiple comma separated words. If multiple words, then i need to extract each word and do xslt filtering based on those words like
/rows/row[role=extractedWord[1] or role = extractedWord[2]
so that only those rows matching for manager or director roles are returned.
Is this possible?
UPDATE:
I have a filter like this:
<xsl:variable name="AllPerRole" select="/dsQueryResponse/Rows/Row[contains(#EmployeeRoles,$Role)]" />
If role has just one value like index.aspx?role=manager then above works fine.
But if role is multiple words like these,
index.aspx?role=manager,director
then i need to some extract that string 'manager,CEO' and be able to do the following:
<xsl:variable name="AllPerRole" select="/dsQueryResponse/Rows/Row[contains(#EmployeeRoles,$Role{firstRole}) or contains(#EmployeeRoles,$Role{2ndRole})]" />

Answer 1

You can set up a variable for the first role in $Role as follows:
<xsl:variable name="Role1">
<xsl:choose>
<xsl:when test="contains($Role, ',')">
<xsl:value-of select="substring-before($Role, ',')"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$Role" />
</xsl:otherwise>
<xsl:choose>
</xsl:variable>
And then set up a variable Role2 for the second role (if any), using substring-after() instead of substring-before().
Then:
<xsl:variable name="AllPerRole"
select="/dsQueryResponse/Rows/Row[
contains(#EmployeeRoles,$Role1) or contains(#EmployeeRoles,$Role2)]" />