Re: [xsl] How Do I Exclude Portions Of XML When XForming XML To XML

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

At 2004-02-24 15:16 -0800, Gary Fix wrote:
> > I have a sample XML file and I want to transform this to a different 
> XML file while omitting part of the original xml.

I see this as a mapping issue where omission is the mapping of something to 
nothing.  Using keys to store the mappings from an external file would 
allow you to have multiple mappings for multiple files with the same 
stylesheet.

> > Any help would be appreciated.

I hope the example below helps.

.................... Ken

T:\ftemp>type gary.xml
<Auto>
        <CustId>
                <SPName>com.anysystem</SPName>
                <CustPermId/>
                <CustLoginId>fred</CustLoginId>
        </CustId>
        <BasicVehInfo>
                <ModelYear>1994</ModelYear>
                <VehIdentificationNumber>1ABCD123456</VehIdentificationNumber>
        </BasicVehInfo>
</Auto>
T:\ftemp>type mappings.xml
<?xml version="1.0" encoding="iso-8859-1"?>
<mappings>
   <mapping old="Auto" new="Vehicle"/>
   <mapping old="BasicVehInfo" new="VehicleData"/>
   <mapping old="ModelYear" new="VehicleYear"/>
   <mapping old="VehIdentificationNumber" new="VIN"/>
</mappings>

T:\ftemp>type gary.xsl
<?xml version="1.0" encoding="iso-8859-1"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                 version="1.0">

<xsl:output indent="yes"/>

<xsl:key name="names" match="mapping/@new" use="../@old"/>

<xsl:template match="*">
   <xsl:variable name="oldname" select="name(.)"/>
   <xsl:variable name="newname">
     <xsl:for-each select="document('mappings.xml')">
       <xsl:value-of select="key('names',$oldname)"/>
     </xsl:for-each>
   </xsl:variable>
   <xsl:if test="string($newname)">
     <xsl:element name="{$newname}">
       <xsl:apply-templates select="@*|node()"/>
     </xsl:element>
   </xsl:if>
</xsl:template>

<xsl:template match="@*|text()"><!--identity for all other nodes-->
   <xsl:copy>
     <xsl:apply-templates select="@*|node()"/>
   </xsl:copy>
</xsl:template>
                                          <!--this cleans up the output-->
<xsl:template match="text()[not(normalize-space())]"/>

</xsl:stylesheet>

T:\ftemp>saxon gary.xml gary.xsl
<?xml version="1.0" encoding="utf-8"?>
<Vehicle>
   <VehicleData>
      <VehicleYear>1994</VehicleYear>
      <VIN>1ABCD123456</VIN>
   </VehicleData>
</Vehicle>
T:\ftemp>


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