[xsl] Removing duplicates

[Clay Leeds <cleeds@xxxxxxxxxx>]

Howdy,

I need to make certain that I don't print the same value twice on a detail 
line. I have up to 6 values, and I've been trying to brute force it, by 
making certain it's not equal to a previous item (see below). I display the 
RC, unless a corresponding TRC exists. BTW, the code below doesn't work 
(still trying to iron out the kinks). Is there a shorter way to do this? 
(i.e., one that actually uses XPath :-)

XML INPUT:
<RCDATA>
  <RCDATALINE>
    <RC>66</RC>
    <TRC>02</TRC>
  </RCDATALINE>
  <RCDATALINE>
    <RC>01</RC>
    <TRC>02</TRC>
  </RCDATALINE>
  <RCDATALINE>
    <RC></RC>
    <TRC></TRC>
  </RCDATALINE>
  <RCDATALINE>
    <RC></RC>
    <TRC></TRC>
  </RCDATALINE>
  <RCDATALINE>
    <RC></RC>
    <TRC></TRC>
  </RCDATALINE>
  <RCDATALINE>
    <RC></RC>
    <TRC></TRC>
  </RCDATALINE>
</RCDATA>


XSL INPUT:
(BTW, I have a similar/identical template for TRC)

<xsl:for-each select="RCDATALINE">
  <xsl:choose>
    <xsl:when test="RCDATALINE[1]">
    <xsl:apply-templates select="RC"/>
    </xsl:when>
    <xsl:when test="RCDATALINE[2] and RC[.!=RC[1]]">
    <xsl:apply-templates select="RC"/>
    </xsl:when>
    <xsl:when test="RCDATALINE[3] and RC[.!=RC[1]] and RC[.!=RC[2]]">
    <xsl:apply-templates select="RC"/>
    </xsl:when>
    <xsl:when test="RCDATALINE[4] and RC[.!=RC[1]] and RC[.!=RC[2]] and 
RC[.!=RC[3]]">
    <xsl:apply-templates select="RC"/>
    </xsl:when>
    <xsl:when test="RCDATALINE[5] and RC[.!=RC[1]] and RC[.!=RC[2]] and 
RC[.!=RC[3]] and RC[.!=RC[4]]">
    <xsl:apply-templates select="RC"/>
    </xsl:when>
    <xsl:when test="RCDATALINE[6] and RC[.!=RC[1]] and RC[.!=RC[2]] and 
RC[.!=RC[3]] and RC[.!=RC[4]] and RC[.!=RC[5]]">
    <xsl:apply-templates select="RC"/>
    </xsl:when>
  </xsl:choose>
</xsl:for-each>


- Clay Leeds
- Web Developer/Programmer
- cleeds@xxxxxxxxxx


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