Sorry, but you haven't provided a well-formed xml document.

<drs58@m...> wrote in message 
news:1117749138.925631.253620@g......
> I'll give it another try....thanks for hanging in there with me:
>
> ****** Sample XML *******
> <source id="VWX" description="This is VWX"/>
> <source id="WXY" description="This is WXY"/>
> <source id="XYZ" description="This is XYZ"/>
> <reqt id="VWX-01" description="This is a requirement identified within
> source VWX"/>
> <reqt id="XYZ-01" description="This is a requirement identified within
> source XYZ"/>
> <reqt id="XYZ-02" description="This is another requirement identified
> within source XYZ"/>
> <package name = "pkg01">
>  <class name="ABC">
>    <source-assoc source="XYZ"/>
>  </class>
>  <class name="BCD">
>    <reqt-assoc reqt="XYZ-01"/>
>  </class>
>  <class name="CDE">
>    <source-assoc source="XYZ"/>
>    <reqt-assoc reqt="XYZ-01"/>
>    <reqt-assoc reqt="XYZ-02"/>
>  </class>
>  <class name="DEF">
>    <reqt-assoc reqt="VWX-01"/>
>  </class>
>  <class name="EFG">
>    <reqt-assoc reqt="XYZ-02"/>
>  </class>
>  <class name="FGH">
>    <source-assoc source="WXY"/>
>  </class>
> </package>
> *****************************
>
>
> I want to count the number of classes that reference a set of sources,
> e.g., "XYZ and VWX", via <source-assoc/> or <reqt-assoc/> tags
> ****** Desired output for XYZ and VWX *******
> 5
> *****************************
>
> My approach is to:
> 1) construct a variable with all source document id's concatenated and
> delimited by '*', e.g.,
>  <xsl:variable name="source-ids">*VWX*WXY*XYZ*</xsl:variable>
>
> 2) for each class, construct a variable by iterating through the
> classes and adding a character, e.g., 'X',
>   every time I find a one with an appropriate <source-assoc> or
> <reqt-assoc/> tag, e.g.,
>  <xsl:variable name="related-classes">
>     <xsl:for-each select="package/class">
>         <xsl:if test=".//source-assoc[contains($source-ids, '*' +
> @source + '*')] | .//reqt-assoc[contains($source-ids, '*' +
> substring-before(@reqt, '-') + '*')]">X</xsl:if>
>     </xsl:for-each>
>  </xsl:variable>
>  NOTE: I want to include the delimiter in the contains function
> parameter to ensure that the match is not based on a substring within a
> source id
>  NOTE: The <source-assoc/> and <reqt-assoc/> tags might actually also
> be included within elements contained within classes.
>
> 3) display string-length($related-classes)
>
> Problem: I don't believe "'*' + @source + '*'" is being processed
> correctly within the contains function.
>
> Any help would be appreciated!
>
> Thanks in advance,
> David
>