1  
   2  from htmlentitydefs import name2codepoint as n2cp
   3  import re
   4  
   5  def substitute_entity(match):
   6      ent = match.group(2)
   7      if match.group(1) == "#":
   8          return unichr(int(ent))
   9      else:
  10          cp = n2cp.get(ent)
  11  
  12          if cp:
  13              return unichr(cp)
  14          else:
  15              return match.group()
  16  
  17  def decode_htmlentities(string):
  18      entity_re = re.compile("&(#?)(\d{1,5}|\w{1,8});")
  19      return entity_re.subn(substitute_entity, string)[0]