Re: most efficient flat file listing to hierarchical

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Subject: Re: most efficient flat file listing to hierarchical
From: George Cristian Bina <george@xxxxxxxxxxxxx>
Date: Thu, 11 Jan 2007 12:34:36 +0200

Hi James,

I assume the files are those items that do not have further content. My take will be something like below. I believe there is still some room for optimizing the identification of a file.

<?xml version="1.0" encoding="US-ASCII"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"> <xsl:output indent="yes"/> <xsl:template match="listing"> <dir> <xsl:call-template name="group"> <xsl:with-param name="items" select="./item"/> </xsl:call-template> </dir> </xsl:template>

<xsl:template name="group"> <xsl:param name="items" select="/.."/> <xsl:param name="base" select="''"/> <xsl:for-each select="$items[not(contains(substring-after(., $base), '/'))]"> <xsl:if test="not($items[current()!=. and contains(., current())])"> <file name="{substring-after(., $base)}"/> </xsl:if> </xsl:for-each> <xsl:for-each-group select="$items[contains(substring-after(., $base), '/')]" group-adjacent="substring-before(substring-after(., $base), '/')" > <xsl:sort select="."/> <xsl:variable name="folder" select="substring-before(substring-after(current-group()[1], $base), '/')"/> <dir name="{$folder}"> <xsl:call-template name="group"> <xsl:with-param name="items" select="current-group()"/> <xsl:with-param name="base" select="concat($base, $folder, '/')"/> </xsl:call-template> </dir> </xsl:for-each-group> </xsl:template> </xsl:stylesheet>

Best Regards,
George
---------------------------------------------------------------------
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com

James Fuller wrote:

Hello All,

Can anyone propose a pure xslt (1 or 2) solution to transforming the following flat xml structure of directory paths into a hierarchical (nested) xml.

<?xml version='1.0'?> <listing> <item>cn/test.xml</item> <item>en</item> <item>en/test.html</item> <item>en/test1.html</item> <item>en/resource</item> <item>en/resource/style</item> <item>en/resource/style/test.css</item> <item>favicon.ico</item> <item>cn</item> </listing>

to
<dir>
<file name="favicon.ico"/>
<dir name="cn">
   <file name="test.xml"/>
</dir>
<dir name="en">
   <file name="test.html"/>
   <file name="test1.html"/>
   <dir name="resource">
       <dir name="style">
             <file name="test.css"/>
       </dir>
   </dir>
</dir>
</dir>
thx in advance.

cheers, Jim Fuller

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