Subject: RE: [xsl] Outputing a node whose value appears only once From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Tue, 19 Jul 2005 03:26:21 +0100 |
Read about Muenchian grouping at http://www.jenitennison.com/xslt/grouping. You can use the same idea to test whether a value is unique within the file (a member of a group of one) by defining the grouping key <xsl:key name="gk" match="b|bb|bbb" use="."/> and testing a node <xsl:template match="b|bb|bbb"> <xsl:if test="not(key('gk', .)[2])"> The value is unique </xsl:if> </xsl:template> Michael Kay http://www.saxonica.com/ > -----Original Message----- > From: Jonathan Marenus [mailto:jonathanmarenus@xxxxxxxxx] > Sent: 18 July 2005 23:35 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: [xsl] Outputing a node whose value appears only once > > > What I would like to do now is output a value that > appears only once throughout the XML file. For > example, if I have: > > <a> > <b>value1</b> > <bb>value2</bb> > <bbb>value3</bbb> > </a> > <c> > <b>value1</b> > <bb>value2</bb> > <bbb>value4</bbb> > </c> > > From the point of view of 'a', I would want to output > "value3" because 'a' contains it but 'c' does not. > This is assuming that the above is the entire file. I > also need to output a sibling of the node which does > not appear more than once (like the value of a/b or > a/bbb). It is also assumed that multiple instances of > the same value will have different parents. This is > shown in the example above. > > Thanks for the help. > > Jonathan > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com
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