dl, new_range_start, old_segment_start, new_range_end,
old_segment_end)
if new_range_end <= old_segment_start:
# range ends before this segment starts, so don't look at any more locators
break
dl, new_range_start, old_segment_start, new_range_end,
old_segment_end)
if new_range_end <= old_segment_start:
# range ends before this segment starts, so don't look at any more locators
break