private function getType($str)
{
$type = 'O';
if (Analyzer::hasJapaneseNumerals($str)) {
$type = 'M';
} elseif (Analyzer::hasKanji($str, true)) {
$type = 'H';
} elseif (Analyzer::hasHiragana($str)) {
$type = 'I';
} elseif (Analyzer::hasKatakana($str)) {
$type = 'K';
} elseif (Analyzer::hasLatinLetters($str)) {
$type = 'A';
} elseif (Analyzer::hasWesternNumerals($str)) {
$type = 'N';
}
return $type;
}