code: def get_column_cursor_position(self, column):
          
          line_length = len(self.current_line)
          current_column = self.cursor_position_col
          column = max(0, min(line_length, column))
  
          return column - current_column
docs: Return the relative cursor position for this column at the current
          line. (It will stay between the boundaries of the line in case of a
          larger number.)