code: def parse_bookmark_data (data):
      
      name = None
      lineno = 0
      for line in data.splitlines():
          lineno += 1
          line = line.strip()
          if line.startswith("NAME="):
              name = line[5:]
          elif line.startswith("URL="):
              url = line[4:]
              if url and name is not None:
                  yield (url, name, lineno)
          else:
              name = None
docs: Return iterator for bookmarks of the form (url, name, line number).
      Bookmarks are not sorted.