Re: [xsl] Testing for presence of node, etc.

Subject: Re: [xsl] Testing for presence of node, etc.
From: Joerg Heinicke <joerg.heinicke@xxxxxx>
Date: Tue, 21 May 2002 22:08:50 +0200
Hello Joel,

you can easily describe it as "grouping problem" ;-) And there is a easy method to solve such problems: Muenchian Method (

<xsl:key name="links" match="link" use="@type"/>

<xsl:template match="root">
<xsl:apply-templates select="link[count(. | key('links', @type)[1]) = 1]" mode="unique"/>

<!-- first occurence of a link with a specific type" -->
<xsl:template match="link" mode="unique">
  type: <xsl:value-of select="@type"/>
  <xsl:apply-templates select="key('links', @type)"/>

<xsl:template match="link">
  <xsl:value-of select="@url"/>



Joel Konkle-Parker schrieb:
Hash: SHA1

In my xml document, I have several nodes of type <link type=""
url=""></link>, where type may one of several different things, and
more than one node may have the same @type. I want to be able to test
whether any nodes exist that have a specific @type and if so, output
a certain heading. I then need to output a string of text for each
occurrance of a specific @type. Obviously I don't want the heading to
output for each occurance.

If I haven't confused everyone already, what suggestions do you have
about the best way to do this?

- -joeljkp

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