anchor.diff:  
   expr_600 -> prefix_op expr_700 :
   	?mkop1('$1', '$2').
  +expr_600 -> map_expr : '$1'.
   expr_600 -> expr_700 : '$1'.
   
   expr_700 -> function_call : '$1'.
  
positive.code: 
  %%struct -> atom tuple :
  %%	{struct,?line('$1'),element(3, '$1'),element(3, '$2')}.
  
  
  %% N.B. This is called from expr_700.
  
negative.code: 
  get_attributes(L) ->
      erl_scan:attributes_info(L).
  
  %% vim: ft=erlang
  