[xsl] Re: XML to XML

["Dimitre Novatchev" <dnovatchev@xxxxxxxxx>]

Hi Jim,

Try something like this:

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
 xmlns:vendor="http://icl.com/saxon";
 xmlns:nums="f:nums" exclude-result-prefixes="nums vendor">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>
 <xsl:strip-space elements="*"/>

 <nums:nums>
   <One/>
   <Two/>
   <Three/>
 </nums:nums>

   <xsl:template match="/">
     <xsl:variable name="vPass1">
       <xsl:apply-templates/>
     </xsl:variable>

     <Categories>
       <xsl:apply-templates mode="pass2"
       select="vendor:node-set($vPass1)/*
                            [string-length(@Code) = 1]"/>
     </Categories>
   </xsl:template>

   <xsl:template match="Categories">
    <xsl:apply-templates select="Category">
      <xsl:sort select="Code"/>
    </xsl:apply-templates>
  </xsl:template>

  <xsl:template match="Category">
    <xsl:variable name="vNums" select="document('')/*/nums:*"/>

    <xsl:element
name="Level{name($vNums/*[string-length(current()/Code)])}Category">
      <xsl:attribute name="Code">
        <xsl:value-of select="Code"/>
      </xsl:attribute>
      <xsl:attribute name="Description">
        <xsl:value-of select="Description"/>
      </xsl:attribute>
    </xsl:element>
  </xsl:template>

  <xsl:template match="*" mode="pass2">
    <xsl:variable name="vcurLevel" select="string-length(@Code)"/>

    <xsl:copy>
      <xsl:copy-of select="@*"/>
      <xsl:apply-templates mode="pass2"
       select="following-sibling::*[string-length(@Code)
                                   =
                                    $vcurLevel + 1
                                  and
                                    generate-id(current())
                                   =
                                    generate-id(preceding-sibling::*
                                                  [string-length(@Code)
                                                  =
                                                   $vcurLevel
                                                   ][1]
                                                )
                                    ]"/>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>

When applied to your source.xml:

<Categories>
  <Category>
    <Code>A</Code>
    <Description>Airplanes</Description>
  </Category>
  <Category>
    <Code>AA</Code>
    <Description>Airplanes (ARF)</Description>
  </Category>
  <Category>
    <Code>AAE</Code>
    <Description>Airplanes (ARF), Electric</Description>
  </Category>
  <Category>
    <Code>AAG</Code>
    <Description>Airplanes (ARF), Giant</Description>
  </Category>
  <Category>
    <Code>AAP</Code>
    <Description>Airplanes (ARF), Sailplane</Description>
  </Category>
  <Category>
    <Code>B</Code>
    <Description>Boats</Description>
  </Category>
  <Category>
    <Code>BA</Code>
    <Description>Boats (ARF)</Description>
  </Category>
  <Category>
    <Code>BAE</Code>
    <Description>Boats (ARF), Electric</Description>
  </Category>
</Categories>

the above transformation produces the wanted result:

<Categories>
   <LevelOneCategory Code="A" Description="Airplanes">
      <LevelTwoCategory Code="AA" Description="Airplanes (ARF)">
         <LevelThreeCategory Code="AAE" Description="Airplanes (ARF),
Electric"/>
         <LevelThreeCategory Code="AAG" Description="Airplanes (ARF),
Giant"/>
         <LevelThreeCategory Code="AAP" Description="Airplanes (ARF),
Sailplane"/>
      </LevelTwoCategory>
   </LevelOneCategory>
   <LevelOneCategory Code="B" Description="Boats">
      <LevelTwoCategory Code="BA" Description="Boats (ARF)">
         <LevelThreeCategory Code="BAE" Description="Boats (ARF),
Electric"/>
      </LevelTwoCategory>
   </LevelOneCategory>
</Categories>


=====
Cheers,

Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL

"Jim Han" <jhan@xxxxxxxxxxxxxxxx> wrote in message
news:DFA25A23407A8143B9070FD0F3AFF51C0291DCCB@xxxxxxxxxxxxxxxxxxxxxxxxx
> I need some help in writing xsl to transform XML to XML.
> I am getting lost in concepts of having multiple templates
>
> Original:
> <Categories>
> <Category>
> <Code>A</Code>
> <Description>Airplanes</Description>
> </Category>
> <Category>
> <Code>AA</Code>
> <Description>Airplanes (ARF)</Description>
> </Category>
> <Category>
> <Code>AAE</Code>
> <Description>Airplanes (ARF), Electric</Description>
> </Category>
> <Category>
> <Code>AAG</Code>
> <Description>Airplanes (ARF), Giant</Description>
> </Category>
> <Category>
> <Code>AAP</Code>
> <Description>Airplanes (ARF), Sailplane</Description>
> </Category>
> <Category>
> <Code>B</Code>
> <Description>Boats</Description>
> </Category>
> <Category>
> <Code>BA</Code>
> <Description>Boats (ARF)</Description>
> </Category>
> <Category>
> <Code>BAE</Code>
> <Description>Boats (ARF), Electric</Description>
> </Category>
> <Categories>
>
>
> Final Result - where one letter, two letter, and three letter categories
are
> nested.
>
>
> <Categories>
> <LevelOneCategory Code="A" Description="Airplanes">
> <LevelTwoCategory Code="AA" Description="Airplanes (ARF)">
> <LevelThreeCategory  Code="AAE"
> Description="Airplanes (ARF), Electric"/>
> <LevelThreeCategory  Code="AAG"
> Description="Airplanes (ARF), Giant"/>
> <LevelThreeCategory  Code="AAP"
> Description="Airplanes (ARF), Sailplane"/>
> </LevelTwoCategory>
>       </LevelOneCategory>
> <LevelOneCategory Code="B" Description="Boats">
> <LevelTwoCategory Code="BA" Description="Boats (ARF)">
> <LevelThreeCategory  Code="BAE" Description="Boats
> (ARF), Electric"/>
> </LevelTwoCategory>
>       </LevelOneCategory>
> <Categories>
>
> Thank you!
>
>
> Jim Han
>
>
>
>
>
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>
>




 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list