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XML-L  October 2000

XML-L October 2000

Subject:

Re: Unique tags

From:

"Healy, Jonathan" <[log in to unmask]>

Reply-To:

General discussion of Extensible Markup Language <[log in to unmask]>

Date:

Tue, 24 Oct 2000 10:16:51 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (75 lines)

Hi,

Here's a snippet from a XSL stylesheet that I believe does what you want. We
use it to generate an index from <indexitem> elements embedded in specific
topics (records). The index entries may or may not be unique, but we want to
list each only once, regardless. The stylesheet is specific to our DTD, of
course, but you should be able to glean the general structure.

        <xsl:for-each select="//indexitem">
           <xsl:sort select="@text"/>
                <xsl:variable name="text" select="@text"/>
                        <!--the following test is only true once for each
primary
             key, even though all elements are visited by the for-each-->
                        <xsl:if test="not( preceding::indexitem[@text=$text]
)">
                                        <div class="link">
                                <xsl:text>&nl;</xsl:text>
                                        <![CDATA[<A
HREF="JavaScript:smartLink([]]>
                    <!--reselect only nodes with current primary key-->
                                        <xsl:for-each
select="//indexitem[@text=$text]">
                                  <xsl:sort
select="ancestor::topic/heading"/>
                                                <![CDATA[']]>
                                                  <xsl:value-of
select="ancestor::topic/@id"/>
                                                <![CDATA[.htm',']]>
                                                  <xsl:value-of
select="ancestor::topic/heading"/>
                                                        <![CDATA[',]]>
                                </xsl:for-each>
                                        <![CDATA[])">]]>
                                        <xsl:value-of select="$text"/>
                                        <![CDATA[</A><BR>]]>
                                        </div>


                        </xsl:if>
           </xsl:for-each>

-----Original Message-----
From: Wim Van hoorde [mailto:[log in to unmask]]
Sent: Tuesday, October 24, 2000 5:05 AM
To: [log in to unmask]
Subject: Unique tags


Hi all,


Is it possible in XSL or XML to specify that each tag in the search result
has te be unique.

For example : you have a file where the same cars appear several times. Can
you get each car once from the datafile ?

cfr. the select distinct in SQL

Wim Van hoorde

MediaGeniX nv
Access 40 - Gossetlaan 54
1702 Groot-Bijgaarden - BELGIUM

Tel.: +32 2 467 34 30
Fax: +32 2 467 34 39

Visit our website at www.mediagenix.com

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