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Re: Extract values from first occurrence of a node

Subject: Re: Extract values from first occurrence of a node
From: Rick Taylor <taylor@xxxxxxxx>
Date: Wed, 16 Jul 2003 10:59:31 -0600
xsl select first occurrence
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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XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list

Rick Taylor XML Developer PPDM Association


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



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