FGL/Haskell - A Functional Graph Library for Haskell Version 5.4.2.2, November 2008 Kown bug: The Patricia tree implementation does not support multiple edges between two nodes. New since the last version (June 2008): Bug fix in Graphvis.sq (see also the file CHANGES) The functional graph library for Haskell provides several modules that define inductive graphs and graph algorithms. An older versi