Yep, exactly what I did. Thank you all! On Nov 20, 4:32 pm, Sean Corfield <seancorfi...@gmail.com> wrote: > On Sat, Nov 19, 2011 at 7:28 PM, Randy Pensinger <rspensin...@gmail.com> > wrote: > > user=> (def stringComparator > > (comparator (fn [a b] > > (do > > (println (str "comparing '" a "' to '" b "'")) > > (.compareTo a b))))) > > #'user/stringComparator > > The docs indicate comparator takes a predicate, i.e., a function that > returns truthy or falsey. > > I changed your definition to this: > > (def stringComparator > (comparator (fn [a b] > (do > (println (str "comparing '" a "' to '" b "'")) > (neg? (.compareTo a b)))))) > > And that worked as expected: > > user> (.compare stringComparator "b" "a") > comparing 'b' to 'a' > comparing 'a' to 'b' > 1 > user> (.compare stringComparator "a" "a") > comparing 'a' to 'a' > comparing 'a' to 'a' > 0 > user> (.compare stringComparator "a" "b") > comparing 'a' to 'b' > -1 > -- > Sean A Corfield -- (904) 302-SEAN > An Architect's View --http://corfield.org/ > World Singles, LLC. --http://worldsingles.com/ > > "Perfection is the enemy of the good." > -- Gustave Flaubert, French realist novelist (1821-1880)
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