[xsl] How do match/compare nodes?

[vbarnard@xxxxxxxxxxxxx]

Hi

I am a bit confused how to tackle my problem and hope someone will be able
to give me a few pointers how to get started at least.

I want to read in the xml file which contains two maps and if a particular
node matches then I want to print out both maps in one line with elements
separated by a pipe (|) symbol, if they don't match then I will ignore the
result.

The node I want to match is "map/assignment/marker/name" 


The is the relevant part of my xml code:

	<map id="0">
		<name>Setaria-Wild-I</name>
		<species>Setaria italica</species>
		<lower_extent>21.7</lower_extent>
		<upper_extent>151.5</upper_extent>
		<assignment>
			<marker>
				<name>Xrgc285</name>
				<homology_group>C285</homology_group>
			</marker>
			<position>38</position>
		</assignment>
	</map>
	<map id="1">
		<name>Pennisetum-Lx1-7</name>
		<species>Pennisetum glaucum</species>
		<lower_extent>50</lower_extent>
		<upper_extent>151.5</upper_extent>
		<assignment>
			<marker>
				<name>Xrgc285</name>
				<homology_group>C285</homology_group>
			</marker>
			<position>24</position>
		</assignment>
	</map>




Many thanks in advance,
Virginia



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