anchor.diff:        "zeavim"
         "wmii-vim"
         "tpopefork"
  +      "plantuml-syntax"
  +      "plantuml-previewer-vim"
  +      "previm"
         # "ghcmod"
         # "neco-ghc"
         ];
  
positive.code:       repo = "vim-textobj-user";
        rev = "e231b65797b5765b3ee862d71077e9bd56f3ca3e";
        sha256 = "0zsgr2cn8s42d7jllnxw2cvqkl27lc921d1mkph7ny7jgnghaay9";
      };
      dependencies = [];
    };
  
negative.code:     withRuby = true;
      extraPython3Packages = ps: with ps; [ pylint neovim numpy scipy jedi ipdb unittest2 pytest ];
      withPyGUI = true;
      configure = vimconfig;
    };
  }
  