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decode html entities

/ Published in: Python
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ex : decode_htmlentities("l'eau")

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

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