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Re: grouping data of an xml file


> Hi i was wondering is it possible to group the data from the xml file?

Of course, have a look at Jeni's page. There you will find a site according
grouping via Muenchian Method
(http://www.jenitennison.com/xslt/grouping/muenchian.xml). You also can
search the archives.

In your case build a key on all books with it's authors:

<xsl:key name="books" match="book" use="head/author"/>

Then apply templates on the first book of every author:

<xsl:template match="Start">
    <xsl:apply-templates select="book[ count( . | key( 'books' ,
head/author )[1] ) = 1]" mode="first"/>
</xsl:template>

In this template you can select all books of the author:

<xsl:template match="book" mode="first">
    <author><xsl:value-of select="head/author"/></author>
    <xsl:apply-templates select="key('books', head/author)"/>
</xsl.template>

<xsl:template match="book">
    <title><xsl:value-of select="head/title"/></title>
</xsl:tempate>

Regards,

Joerg


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