anchor.diff:      none.
   
   
  -%% @doc Return a set of topmost pure functions containined in
  +%% @doc Return a set of topmost pure functions contained in
   %% a string of Erlang code.
   
   -spec top_funs_from_code(string(), purity_utils:options()) ->
  
positive.code:     end.
  
  
  %%% Various helpers. %%%
  
  update(Table, KeyVals) ->
  
negative.code:          propagate_both/2, find_missing/1]).
  -export([analyse_changed/3]).
  -export([top_funs/3, top_funs_from_code/2]).
  -export([pure_funs/3, pure_funs_from_code/2]).
  -export([score/2]).
  
  -import(purity_utils, [fmt_mfa/1, str/2]).
  