480 to_unicode(Input,Cs) when Cs=='ansi_x3.4-1968';Cs=='iso-ir-6';  function
485 to_unicode(Input,Cs) when Cs=='iso-10646-utf-1';Cs=='csiso10646utf1' ->  function
487 to_unicode(Input,Cs) when Cs=='iso_646.basic:1983';Cs=='ref';  function
490 to_unicode(Input,Cs) when Cs=='iso_8859-1:1987';Cs=='iso-ir-100';  function
495 to_unicode(Input,Cs) when Cs=='iso_8859-15';Cs=='iso-8859-15';Cs=='latin9' ->  function
500 to_unicode(Input,Cs) when Cs=='iso-10646-ucs-2';Cs=='csunicode' ->  function
502 to_unicode(Input,Cs) when Cs=='iso-10646-ucs-4';Cs=='csucs4' ->  function
504 to_unicode(Input,Cs) when Cs=='utf-16be';Cs=='utf-16' ->  function
506 to_unicode(Input,'utf-16le') ->  function
508 to_unicode(Input,'utf-8') ->  function
510 to_unicode(Input,Charset) ->  function