···

       
85
       
85
       
 
       
          Gt, Gt, Gt, Gt | Lt, Lt, Lt, Lt -> #(range, seen_ranges)

     

       
86
       
86
       
 
       
          // if it's inside of the other one

     

       
87
       
87
       
 
       
          Gt, Lt, _, _ | Eq, Lt, _, _ | Gt, Eq, _, _ | Eq, Eq, _, _ -> #(

     

       
88
       
88
       
-
       
            #(0, 0),

     

       
88
       
88
       
+
       
            #(-1, -1),

     

       
89
       
89
       
 
       
            seen_ranges,

     

       
90
       
90
       
 
       
          )

     

       
91
       
91
       
 
       
          // if the other one is inside it

     
···

       
106
       
106
       
 
       
        }

     

       
107
       
107
       
 
       
      })

     

       
108
       
108
       
 
       


     

       
109
       
109
       
-
       
    case range == #(0, 0) {

     

       
109
       
109
       
+
       
    case range == #(-1, -1) {

     

       
110
       
110
       
 
       
      False -> seen_ranges |> set.insert(range)

     

       
111
       
111
       
 
       
      True -> seen_ranges

     

       
112
       
112
       
 
       
    }