code: def adjust(self, ln):
          
          adj_ln = ln
          need_unskipped = 0
          for i in self.skips:
              if i <= ln:
                  need_unskipped += 1
              elif adj_ln + need_unskipped < i:
                  break
              else:
                  need_unskipped -= i - adj_ln - 1
                  adj_ln = i
          return adj_ln + need_unskipped
docs: Converts a parsing line number into an original line number.