with builtins; [ (replaceStrings ["o"] ["a"] "foobar") (replaceStrings ["o"] [""] "foobar") (replaceStrings ["oo"] ["u"] "foobar") (replaceStrings ["oo" "a"] ["a" "oo"] "foobar") (replaceStrings ["oo" "oo"] ["u" "i"] "foobar") (replaceStrings [""] ["X"] "abc") (replaceStrings [""] ["X"] "") (replaceStrings ["-"] ["_"] "a-b") ]