Correct way to test for no match

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Subject: Correct way to test for no match
From: Dan Vint <dvint@xxxxxxxxx>
Date: Thu, 1 Oct 2009 13:04:58 -0700 (PDT)

I have a structure where I need to match values between w element attributes. These elements are in different parst of the document. Problem I'm trying to solve is when there is a typo in one of the attributes and there is no match. I thought this would do it, but it's not <xsl:when test="ancestor::ipb/figure/subfig/graphic[@boardno=$sht_num]/@boardno">

same with this

<xsl:when test="ancestor::ipb/figure/subfig/graphic[@boardno=$sht_num]/@boardno = ''">

Any suggestions?

Here is the doc structure:

<ipb>
  <figure>
    <subfig>
      <graphic boardno='a'/>
    </subfig>
  </figure>
  <table>
    <row>
      <entry><ipbilus><xref shtref='b'/></ipbilus>
      </entry>
    </row>
  </table>
</ipb>

$sht_num is set to xref/@shtref so b never finds a on graphic

..dan

---------------------------------------------------------------------------
Danny Vint

Specializing in Panoramic Images of California and the West
http://www.dvint.com


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Current Thread

Re: Create a web interface to query a XML database
- Vyacheslav Sedov - 1 Oct 2009 05:15:53 -0000
  - Manuel Souto Pico - 1 Oct 2009 11:30:24 -0000
    - Andrew Welch - 1 Oct 2009 11:45:37 -0000
      - Vyacheslav Sedov - 1 Oct 2009 16:13:41 -0000
  - Dan Vint - 1 Oct 2009 20:06:04 -0000 <=
    - Wendell Piez - 1 Oct 2009 21:45:23 -0000
    - Dan Vint - 2 Oct 2009 22:58:48 -0000
  - <Possible follow-ups>
  - Michael Schäfer - 1 Oct 2009 05:46:38 -0000
    - Vyacheslav Sedov - 1 Oct 2009 06:25:36 -0000

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