[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

RE: Merging multiple documents and combining their nod

Subject: RE: Merging multiple documents and combining their nodes
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Wed, 13 Jun 2007 14:26:51 +0100
RE:  Merging multiple documents and combining their nod
Are you constrained to XSLT 1.0? If you can use 2.0, it's simple:

<xsl:variable name="docs" select="document(('file1.xml', 'file2.xml',
'file3.xml'))"/>
<xsl:variable name="comps" select="$docs/components/component"/>

<components>
 <xsl:for-each-group select="$comps" group-by="@name">
   <component name="{current-grouping-key()}"
              description="{@description}">\\\
     <xsl:copy-of select="current-group()/*"/>
   </component>
 </xsl:for-each-group>
</components>

Michael Kay
http://www.saxonica.com/ 

> -----Original Message-----
> From: Mark Peters [mailto:flickrmeister@xxxxxxxxx] 
> Sent: 13 June 2007 14:09
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  Merging multiple documents and combining their nodes
> 
> Hi Everyone,
> 
> I'm starting with half a dozen files with identical top-level 
> structures, but with different child nodes.
> 
> For example:
> 
> file1.xml
> 
> <components>
>      <component name="a" description="1">
>           <childA>Value</childA>
>           <childB>Value</childB>
>      </component>
> </components>
> 
> file2.xml
> 
> <components>
>      <component name="b" description="2">
>           <childC>Value</childC>
>           <childD>Value</childD>
>      </component>
> </components>
> 
> 
> file3.xml
> 
> <components>
>      <component name="a" description="1">
>           <childE>Value</childE>
>           <childF>Value</childF>
>      </component>
> </components>
> 
> I'm trying to merge all of these files into a single file and 
> combine all of the child nodes for <component> elements with 
> identical name attributes.
> 
> 
> So far, I've been able to merge the documents:
> 
> <xsl:stylesheet version="1.0" 
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> 	<xsl:output indent="yes"/>
> 	<xsl:param 
> name="sources">file1.xml|file2.xml|file3.xml</xsl:param>
> 	<xsl:template match="/">
> 		<components>
> 			<xsl:call-template name="loaddocuments"/>
> 		</components>
> 	</xsl:template>
> 	<xsl:template name="loaddocuments">
> 		<xsl:param name="string" select="concat($sources,'|')"/>
> 		<xsl:if test="substring-before($string,'|') != ''">
> 			<xsl:apply-templates
> select="document(substring-before($string,'|'))" mode="merge"/>
> 		</xsl:if>
> 		<xsl:if test="contains($string,'|')">
> 			<xsl:call-template name="loaddocuments">
> 				<xsl:with-param name="string" 
> select="substring-after($string,'|')"/>
> 			</xsl:call-template>
> 		</xsl:if>
> 	</xsl:template>
> 	<xsl:template match="/" mode="merge">
> 		<xsl:copy-of select="//component"/>
> 	</xsl:template>
> </xsl:stylesheet>
> 
> 
> But the output does not combine the <component> elements::
> 
> <components>
>      <component name="a" description="1">
>           ..
>      </component>
>      <component name="a" description="1">
>           ..
>      </component>
>      <component name="b" description="1">
>           ..
>      </component>
> </components>
> 
> 
> So, then I tried following a few sets of instructions based 
> on the information on the "Document" page of Dave Pawson's site
> (http://www.dpawson.co.uk/xsl/sect2/N2602.html) and elsewhere.
> Specifically, I tried creating a master file to list each of 
> my XML files and then references this file in my stylesheet.
> 
> For example:
> 
> filenames_file.xml
> 
> <files>
> 	<file>file1.xml</file>
> 	<file>file2.xml</file>
> 	<file>file3.xml</file>
> </files>
> 
> 
> Stylesheet:
> 
> <xsl:stylesheet version="1.0" 
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> 	<xsl:output indent="yes"/>
> 	<xsl:variable name="mergedset"
> select="document('filenames_file.xml')/components/component"/>
> 	<xsl:template match="/">
> 		<components>
> 			<xsl:apply-templates 
> select="$mergedset" mode="process"/>
> 		</components>
> 	</xsl:template>
> 	<xsl:template match="/" mode="process">
> 		<xsl:apply-templates select="//component/@name">
> 			<xsl:sort select="@name"/>
> 		</xsl:apply-templates>
> 	</xsl:template>
> </xsl:stylesheet>
> 
> 
> My output only contained an empty <components/> element.
> 
> I've tried applying various combinations of instructions on 
> the "Document" page, and have referenced the W3.org page on 
> the document() function (http://www.w3.org/TR/xslt#document), 
> but have been unsuccessful in achieving the desired output.
> 
> I'd appreciate any suggestions.
> 
> Thanks,
> Mark
> 
> -- 
> 
> Mark Peters
> Senior Technical Writer
> Saba Software

Current Thread

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.