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RE: Subtree transformation

• From: "Michael Kay" <mike@s...>
• To: "'Garvin Riensche'" <g.riensche@g...>,<xml-dev@l...>
• Date: Thu, 15 Mar 2007 11:22:42 -0000

XSLT questions are best asked on the xsl-list at mulberrytech.com

XSLT's template rule mechanism is explicitly designed to enable you to
handle variability in the input document. Don't use copy-of; use
apply-templates to walk down the tree recursively and make whatever changes
are needed at each level.

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

 

> -----Original Message-----
> From: Garvin Riensche [mailto:g.riensche@g...] 
> Sent: 15 March 2007 11:16
> To: xml-dev@l...
> Subject:  Subtree transformation
> 
> Hello,
> 
> I am wondering if it is possible to change a subtree of an 
> XML tree whose structure is not always the same. For example, 
> the input XML can look like
> 
> <a>
>    <b>
>      <c id="1"/>
>    </b>
> </a>
> 
> I want to add some more "<c>" tags as children of the "<b>" 
> tag to get something like this:
> 
> <a>
>    <b>
>      <c id="1"/>
>      <c id="2"/>
>      ...
>    </b>
> </a>
> 
> If the input would always look like this I would write a 
> stylesheet that looks like the following:
> 
> <xsl:stylesheet match="/">
> <a>
>    <b>
>      <xsl:copy-of="/a/b/c"/>
>      <c id="2"/>
>      <c id="3"/>
>    </b>
> </a>
> 
> But how can I add further siblings to "<c>" if the preceding 
> nodes differ and if there are more tags below the closing 
> "</b>" like in this
> example:
> 
> <a>
>    <b>
>      <bb>
>        <bbb/>
>      </bb>
>      <c id="1"/>
>    </b>
>    <d>
>       <e/>
>       ...
>    </d>
> </a>
> 
> 
> I need to copy everything and add some additional "<c>" tags. 
> I dont't know how to do that becase with xsl:copy-of I can 
> copy the whole tree but it can not be changed and if I 
> iterate trough the tree with xsl:copy every tag is 
> immideately closed. It would be nice if someone could help.
> 
> Regards,
> Garvin
> 
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• References:
  • Subtree transformation
    • From: Garvin Riensche <g.riensche@g...>