Erlang: convert any string to binary utf8

I took half a day, until I found a wonderful module xmerl_ucs. It is available in Erlangen R14B

uniconvert(String) ->
  try xmerl_ucs:from_utf8(String) of
    _ ->             
      list_to_binary(String)
  catch
    exit:{ucs,{bad_utf8_character_code}} -> 
      list_to_binary(xmerl_ucs:to_utf8(String))
  end.

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