Re: [xsl] Extract values from first occurrence of a node

[Rick Taylor <taylor@xxxxxxxx>]

You could sort using the first five (presuming they will always be numbers) 
and then output only the first B

        <xsl:template match="A">

        <xsl:for-each select="B">
          <xsl:sort select="substring(.,1,5)" data-type="number"/>
              <xsl:if test="position() = 1">
                <xsl:value-of select="substring(.,7,4)"/>
              </xsl:if>
          </xsl:for-each>
         </xsl:template>

rick


At 12:09 PM 7/16/03 -0400, you wrote:
> I am trying to translate XML via XSL/XSLT need to specifically extract the 
> values from the first occurrence of a particular node and ignore the rest 
> of that same node.
>
> I was attempting to use preceding-sibling::nodeset/node to verify if the 
> match has already been made, but having little luck because I not only 
> need to match the node but match substrings of the node's value.
>
> Example XML:
>
> <A>
> <B>12345 ABCD</B>
> <B>12344 ABCD</B>
> <B>12333 EFGH</B>
> <B>12344 WXYZ</B>
> </A>
>
> What I need to do:
>
> Recognize the first <B> with 12344 (substring from 1 with length 5) and 
> extract ABCD (substring from 7 with length 4), but ignore all other <B>
>
> This is a very basic example, the XML I am working with is a bit more 
> complicated and it is being translated via XSL-FO for PDF generation.
>
> The biggest problem I am having with XSL/XSLT is detaching from my 
> procedural language experience!  From my experience, I am having success 
> in mapping singlular nodes but more difficulty when trying to accomplish 
> "decision logic" in a non-procedural manner.
>
> Any suggestions or recommended reads would be great.
>
> Thanks,
> Matt
>
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Rick Taylor
XML Developer
PPDM Association


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