Hi Allan,
I have 2 XML elements each containing comma separated values. I need to
take each individual value from <elem2> and see if it exists in <elem1>. If
true is returned, go off and do something..... otherwise get the next value
from <elem2> and compare it to all the values in <elem1> etc etc.
<data>
<elem1>bloggs,smith,jones,bush,howard,bennis</elem1>
<elem2>skeen,seinfield,longshaw,bloggs,keitel</elem2>
</data>
Of course, you could simplify the problem by first converting your input
to something more XMLish:
<data>
<elem1>
<e>bloggs</e>
<e>smith</e>
<e>jones</e>
<e>bush</e>
<e>howard</e>
<e>bennis</e>
</elem1>
<elem2>
<e>skeen</e>
<e>seinfield</e>
<e>longshaw</e>
<e>bloggs</e>
<e>keitel</e>
</elem2>
</data>
With Jarno's tokenizer template you could generate such an intermediate
file and then take that as input for a second transform:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>
<xsl:key name="e1" match="elem1/e" use="."/>
<xsl:template match="/*">
<result>
<xsl:apply-templates select="elem2/e"/>
<xsl:if test="not(elem1/e = elem2/e)"><not-found/></xsl:if>
</result>
</xsl:template>
<xsl:template match="elem2/e">
<xsl:apply-templates select="key('e1',.)"/>
</xsl:template>
<xsl:template match="elem1/e">
<found><xsl:value-of select="."/></found>
</xsl:template>
</xsl:stylesheet>
that would give <found>bloggs</found> (or <not-found/> if nothing is found).
Note: test="not(elem1/e = elem2/e)" does not mean "the node-sets elem1/e
and elem2/e are different", but "there is no elem1/e element that has
the same string value as any elem2/e element".
HTH,
Anton
So the approach would be:
Take 'skeen' and compare it to all the comma separated values in <elem1>.
If FALSE is returned, take 'seinfield' and compare to all values in <elem1>
and so on...If TRUE is returned at any stage DO SOMETHING. If at the end
nothing is found, DO SOMETHING DIFFERENT......
Any suggestions on how to do this?
Thanks!