RE: [xsl] URGENT : Algorithm for exclusion elements

[Jarno.Elovirta@xxxxxxxxx]

Hi,

> I need to show in HTLM the <description> elements of all 
> groups but only if
> between an item/type="T" element and another item/type="T" element are
> existing item/type="P" elements. In this way, only the SECOND GROUP
> <description> elements should be processed. The problem is 
> that I can know
> that nobody <type>P</type> elements are present only after 
> process the group
> (between <type>T</type> elements) and it's too late.
> 
> Who can help me for this URGENT problem?

  <xsl:key name="x" match="item[not(type = 'T')]" use="generate-id(preceding-sibling::item[type = 'T'][1])"/>
  <xsl:template match="root">
    <xsl:copy>
      <xsl:for-each select="item[type = 'T']">
        <xsl:if test="key('x', generate-id(.))[type = 'P']">
          <xsl:apply-templates select=". | key('x', generate-id(.))"/>
        </xsl:if>
      </xsl:for-each>
    </xsl:copy>
  </xsl:template>
  <xsl:template match="@* | node()">
    <xsl:copy>
      <xsl:apply-templates select="@* | node()"/>
    </xsl:copy>
  </xsl:template>

Cheers,

Jarno

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