Re: [xsl] Adding elements to unknown tree structure

["Joris Gillis" <roac@xxxxxxxxxx>]

Hi,

Tempore 17:41:53, die 09/21/2005 AD, hinc in xsl-list@xxxxxxxxxxxxxxxxxxxxxx scripsit Gustave Stresen-Reuter <tedmasterweb@xxxxxxx>:

> Given:
>
> <myxmlfile>
>      <folder name="root">
>          <folder name="documents">
>              <document name="passwords">
>                  123456
>              </document>
>          </folder>
>          <folder name="pictures">
>              <folder name="family" />
>          </folder>
>      </folder>
> </myxmlfile>
>
> parameter: folder_name = "friends"
> parameter: path2folder = root/pictures
>
> How can I create a new folder element named "friends" in the pictures
> element?
>
> Keep in mind that I need to make sure that both "root" and "pictures"
> exist and if they don't, create them first.

See if you can get this stylesheet working:
<xsl:stylesheet version="1.0"
	xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
	<xsl:output method="xml" indent="yes"/>
	
<xsl:template match="/">
<xsl:apply-templates>
<xsl:with-param name="path2folder">/root/pictures/friends</xsl:with-param>
</xsl:apply-templates>
</xsl:template>

<xsl:template match="node()">
<xsl:param name="path2folder"/>
<xsl:param name="good" select="true()"/>
<xsl:variable name="path" select="substring-before($path2folder,'/')"/>
<xsl:variable name="verygood"
	select="($good and @name=$path) or self::myxmlfile"/>
<xsl:variable name="pathafter" select="substring-after($path2folder,'/')"/>
<xsl:variable name="nextpath" select="substring-before($pathafter,'/')"/>
<xsl:variable name="folder" select="folder[@name=$nextpath][$good]"/>
<xsl:copy>
	<xsl:copy-of select="@*"/>
	<xsl:apply-templates select="node()">
		<xsl:with-param name="path2folder" select="$pathafter"/>
		<xsl:with-param name="good" select="$verygood"/>
	</xsl:apply-templates>
	<xsl:if test="$verygood and not($folder) and not($path2folder='')">
		<xsl:call-template name="createFolder">
			<xsl:with-param name="path2folder" select="$pathafter"/>
		</xsl:call-template>
	</xsl:if>
</xsl:copy>
</xsl:template>

<xsl:template name="createFolder">
<xsl:param name="path2folder"/>
<folder name="{substring-before(concat($path2folder,'/'),'/')}">
	<xsl:if test="contains($path2folder,'/')">
		<xsl:call-template name="createFolder">
			<xsl:with-param name="path2folder"
				select="substring-after($path2folder,'/')"/>
		</xsl:call-template>
	</xsl:if>
	<xsl:if test="not(contains($path2folder,'/'))">
		<xsl:comment>folder inserted</xsl:comment>
	</xsl:if>
</folder>
</xsl:template>

</xsl:stylesheet>



regards,
--
Joris Gillis (http://users.telenet.be/root-jg/me.html)
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