[xsl] More about keeping track of the visited path in a directed graph

I wrote about this subject years ago....
IBM Research Technical Report 2004-03 (RC23144 in worldwide catalog)
David Marston
Using XSLT to Detect Cycles in a Directed Graph
http://domino.watson.ibm.com/cambridge/research.nsf/0/bcd0d9d5357d374f85256e6000536931?OpenDocument

This is pure XSLT 1.0, no extensions.
.................David Marston

(Going back to lurking)

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