Anyone know how I can do this? I'm using XSL/XPath 1.0.
This is one problem where XPath2 makes it 10000 times easier:-)
It's possible in xslt1 you just need to write (or use, from a library
such as, probably, fxsl) a recursive template that splits the strings up
using substring-before() on the comma and builds up the unique keyword
lists.
If you allow yourself some extension functions in 1.0 then the code
would be easier. especially if you have xx:node-set() to hand which
would allow you to do it in two phases, first splitting up the commans
then doing a standard xslt1 grouping idionm to find unique values.
If you also have an extension such as saxon:tokenize() you acan save
yourself a recursive tokenising template as well. If you have neither
eg you want it to run in mozilla, it's still possible, just a little
more involved.
David
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