webyrd/relational-parsing-with-derivatives — pull request #1 by namin (2013-01-20 18:58:54+00:00)
Title: Clojure's core.logic version

Note sure why, but the generation of positive patterns and non-empty data is relatively fast (up to a dozen or so), unlike in Scheme. The Clojure version still has the same issue with the harder literal match.