Re: XML to XML

Jeni,

This is so nice!

=====
Cheers,

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


"Jeni Tennison" <jeni@xxxxxxxxxxxxxxxx> wrote in message
news:1111631898796.20030327093752@xxxxxxxxxxxxxxxxxxx
> Hi Jim,
>
> > I need some help in writing xsl to transform XML to XML.
> > I am getting lost in concepts of having multiple templates
>
> You've had several solutions already. This is one that, like
> Wendell's, uses keys, but this only uses one key, which makes it a bit
> simpler.
>
> First, index each <Category> element using all but the last letter of
> its <Code> element child:
>
> <xsl:key name="categories"
>          match="Category"
>          use="substring(Code, 1, string-length(Code) - 1)" />
>
> When you use the function call:
>
>   key('categories', 'A')
>
> for example, you'll get every <Category> element whose <Code> element
> has two letters and starts with an 'A'.
>
> To start off, you want a template matching the <Categories> element to
> apply templates to only those <Category> elements that have only one
> letter codes; you can use the key to find these as they'll all be
> indexed with the string '':
>
> <xsl:template match="Categories">
>   <Categories>
>     <xsl:apply-templates select="key('categories', '')" />
>   </Categories>
> </xsl:template>
>
> Then you can have a single template for all the <Category> elements.
> This is a little complicated by the fact that you want to have
> different element names for <Category> elements at different levels,
> but basically it creates the relevant element, then applies templates
> to those <Category> elements (using the key again) whose <Code> starts
> with the <Code> of the <Category> element that you're processing:
>
> <xsl:template match="Category">
>   <xsl:variable name="level">
>     <xsl:choose>
>       <xsl:when test="string-length(Code) = 1">One</xsl:when>
>       <xsl:when test="string-length(Code) = 2">Two</xsl:when>
>       <xsl:when test="string-length(Code) = 3">Three</xsl:when>
>       <xsl:otherwise>
>         <xsl:message terminate="yes">
>           I thought you said there'd only be three levels!
>         </xsl:message>
>       </xsl:otherwise>
>     </xsl:choose>
>   </xsl:variable>
>
>   <xsl:element name="Level{$level}Category">
>     <xsl:attribute name="Code">
>       <xsl:value-of select="Code" />
>     </xsl:attribute>
>     <xsl:attribute name="Description">
>       <xsl:value-of select="Description" />
>     </xsl:attribute>
>     <xsl:apply-templates select="key('categories', Code)" />
>   </xsl:element>
> </xsl:template>
>
> Cheers,
>
> Jeni
>
> ---
> Jeni Tennison
> http://www.jenitennison.com/
>
>
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>
>




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