Re: [xsl] generating xml from xml

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Murali,

Keys were invented for just this kind of application.

Declare a key that lets you retrieve your field mapping elements by their 
id values:

<xsl:key name="field-by-id" match="_" use="@id"/>

Then, for example,

<xsl:template match="Trade/*">
  <xsl:element name="key('field-by-id',local-name())/fn">
    <xsl:apply-templates/>
  </xsl:element>
</xsl:template>

would match a child of Trade and create an element with the appropriate 
name (if I have it right).

Really, I'm helping you less by writing the code than I would by explaining 
it better -- but you can (and should) find a good explanation of keys in a 
published resource.

Whether MSXML3.0 supports keys, I can't say for sure (though I think it 
does). If not, this can still be done with brute force (albeit expensively) 
using an XPath location path.

Cheers,
Wendell

At 10:31 AM 11/10/2003, you wrote:
> Hi,
>  I have a situation where I have to apply xsl on some xml and generate 
> slightly different xml. I hope you people can help me.
>
> this is my xml :
>
> <Data Timestamp="2003-11-05 21:00:07">
>         <Fields>
>                 <_ fn="Level1" id="F0"/>
>                 <_ fn="Level2" id="F1"/>
>                 <_ fn="Level3" id="F2"/>
>                 <_ fn="TradeDate" id="F3"/>
>                 <_ fn="TradeId" id="F4"/>
>                 <_ fn="User" id="F5"/>
>         </Fields>
>         <Trades>
>                 <Trade>
>                         <F0/>
>                         <F1/>
>                 </Trade>
>                 <Trade>
>                         <F0/>
>                         <F1>Entry</F1>
>                         <F2/>
>                 </Trade>
>                 <Trade>
>                         <F0>Mid</F0>
>                         <F1/>
>                         <F2/>
>                         <F3/>
>                         <F4>126</F4>
>                 </Trade>
>         </Trades>
> </Data>
>
> and I am trying to generate :
>
>
> <Data Timestamp="2003-11-05 21:00:07">
>         <Trades>
>                 <Trade>
>                         <Level1/>
>                         <Level2/>
>                 </Trade>
>                 <Trade>
>                         <Level1/>
>                         <Level2>Entry</Level2>
>                         <Level3/>
>                 </Trade>
>                 <Trade>
>                         <Level1>Mid</Level1>
>                         <Level2/>
>                         <Level3/>
>                         <TradeDate/>
>                         <TradeId>126</TradeId>
>                 </Trade>
>         </Trades>
> </Data>
>
> and my limitation is, the parser I can use should be MSXML3.0 or less.


======================================================================
Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc.                http://www.mulberrytech.com
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Suite 207                                          Phone: 301/315-9631
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