my %table = ( 'À' => 'A', 'Á' => 'A', 'Â' => 'A', 'Ã' => 'A', 'Ä' => 'A', 'Å' => 'A',
              'Ç' => 'C',
              'È' => 'E', 'É' => 'E', 'Ê' => 'E', 'Ë' => 'E',
              'Ì' => 'I', 'Í' => 'I', 'Î' => 'I', 'Ï' => 'I',
              'Ñ' => 'N',
              'Ò' => 'O', 'Ó' => 'O', 'Ô' => 'O', 'Õ' => 'O', 'Ö' => 'O',
              'Ù' => 'U', 'Ú' => 'U', 'Û' => 'U', 'Ü' => 'U',
              'à' => 'a', 'á' => 'a', 'â' => 'a', 'ã' => 'a', 'ä' => 'a', 'å' => 'a',
              'ç' => 'c',
              'è' => 'e', 'é' => 'e', 'ê' => 'e', 'ë' => 'e',
              'ì' => 'i', 'í' => 'i', 'î' => 'i', 'ï' => 'i',
              'ñ' => 'n',
              'ò' => 'o', 'ó' => 'o', 'ô' => 'o', 'õ' => 'o', 'ö' => 'o',
              'ß' => 'ss',
              'ù' => 'u', 'ú' => 'u', 'û' => 'u', 'ü' => 'u',
              'ý' => 'y' );

$str = "Les Misérables";
$str =~ s/([^\x00-\x7F])/$table{'$1'} || '?'/ge;
print "str:$str<br>";

##</code><code>##

str:Les Mis?rables