Re: AW: [xsl] Merging common XML tree

[Michael Kay <mike@xxxxxxxxxxxx>]

You haven't specified the problem very completely. For example, are 
there always exactly two branches to be merged, or can it be any number? 
Can you get duplicates only at the top level, or at any level? What 
should happen if the dir elements have any attributes other than @name, etc?

I would do it in XSLT 2.0 using a recursive application of 
xsl:for-each-group. I wouldn't attempt it in XSLT 1.0 (but then, I 
wouldn't attempt anything in XSLT 1.0 unless my life depended on it).

<xsl:template name="g">
<xsl:param name="in" as="element(dir)*"/>
<xsl:for-each-group select="$in" group-by="name()">
<dir name="{@name}>
<xsl:call-template name="g">
<xsl:with-param name="in" select="current-group()/dir"/>
</
</
</
</

Not tested.

Michael Kay
Saxonica

On 08/07/2010 10:39, Szabo, Patrick (LNG-VIE) wrote:
> Hi,
>
> You could try this:
>
> <xsl:template match="dir">
> 	<copy>
> 		<copy-of select="@*">
> 	</copy>
> 	<xsl:if test="following::dir[@name = current()/@name]">
> 		<xsl:apply-templates select="following::dir[@name = current()/@name]/*"/>
> 	</xsl:if>
> </xsl:template>
>
> Haven't tested this but the solution should be something like this.
>
> cheers
>
>
> Patrick Szabo
>   XSLT-Entwickler
>
> Tel.: +43 (1) 534 52 - 1573
> Fax: +43 (1) 534 52 - 146
>
> Patrick.Szabo@xxxxxxxxxxxxx
>
> LexisNexis Verlag ARD Orac GmbH&  Co KG
> Marxergasse 25, 1030 Wien
> FN 8333f, Handelsgericht Wien
> http://www.lexisnexis.at/
>
> -----UrsprC<ngliche Nachricht-----
>
> Von: Mathieu Malaterre [mailto:mathieu.malaterre@xxxxxxxxx]
> Gesendet: Donnerstag, 08. Juli 2010 11:30
> An: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Betreff: [xsl] Merging common XML tree
>
> Hi there,
>
>    I am trying to find a solution for the following problem. Let's
> assume that my input XML tree looks like:
>
> <dirs>
>    <dir name="A">
>      <dir name="B">
>        <file name="C">
>      </dir>
>    </dir>
>    <dir name="A">
>      <dir name="B">
>        <file name="D">
>      </dir>
>    </dir>
> </dirs>
>
> and my target output tree should looks like:
>
> <dirs>
>    <dir name="A">
>      <dir name="B">
>        <file name="C">
>        <file name="D">
>      </dir>
>    </dir>
> </dirs>
>
> Basically I am trying to represent a dir/file structure in XML, where
> I am not allowed to repeat common subdirectory. What XSL function
> could I use to do that (XSTL 1.0 if possible).
>
> Thanks !