anchor.diff:  %% 
   %% Evaluate user input
   %%
  -eval_cli(Line) ->
  +eval_input(Line) ->
     case string:tokens(Line, " \n") of
   	  [] -> [];
   	  [Command | Params] ->
  
positive.code:    io:format("Exit the UI~n").
  
  ui_help_help() ->
    io:format("Display the contents of the help screen").
    
    
  %%
  
negative.code: shell_loop() ->
    % use the current node for the UI prompt
    Prompt = atom_to_list(get(curr_node)) ++ "> ",
    % read user input
    Line = get_input(Prompt),
  
    Result = eval_input(Line),
    case Result of
  	  done -> 
  	    exit(normal);
  