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[xsl] listing unique attributes

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Hi folks,

I'm having a problem creating a list of items from a set of items within a
given tag. I have a file that looks like this:

--------------------------------------------------------------------
<?xml version="1.0" ?>
<kc>
<section>

<p>some text <quote who="person A">more text</quote> more text <quote
who="person B">more text</quote> and more.</p>

<quote who="person A">
<p>text</p>
</quote>

<p>text <quote who="person B">more text</quote></p>

<p>

<ul>

<li>text <quote who="person C">text</quote></li>

</ul>

</p>

</section>

<section>
<quote who="person C"></quote>
</section>

</kc>
--------------------------------------------------------------------

in other words, within a <section> tag, there may be <quote> tags by
themselves, or <quote> tags nested within other tags. The "who" attribute of
a quote tag is a person's name. "who" attributes may repeat in a given section.

I have an xslt recipe that looks like this:

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<xsl:template match="kc/section" mode="full">
<xsl:if test=".//quote">
Quoted:
    <xsl:for-each select=".//@who[not(following-sibling::quote/@who=.)]">
<a href="quotes/{.}.html"><xsl:value-of select="."/></a>
        <xsl:if test="not(position() = last())">,&#160;</xsl:if>
    </xsl:for-each>
</xsl:if>
</xsl:template>
--------------------------------------------------------------------

What I would like is for this recipe to produce the following output
when applied to the first <section> in the file above:

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<a href="quotes/person A.html">person A</a>,&#160;<a href="quotes/person
B.html">person B</a>,&#160;<a href="quotes/person C.html">person C</a>
--------------------------------------------------------------------

and when applied to the second <section> in the file above:

--------------------------------------------------------------------
<a href="quotes/person C.html">person C</a>
--------------------------------------------------------------------

In other words, each person should only be listed once for a given
section, no matter how many times they appear in that section.

But I can't seem to make it go somehow. Could someone please give me a
hand?

Many thanks,
Zack

-- 
Zack Brown

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list

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