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<?php |
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namespace Onoi\Tesa\Tokenizer; |
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use Onoi\Tesa\CharacterExaminer; |
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/** |
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* @license GNU GPL v2+ |
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* @since 0.1 |
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* |
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* @author mwjames |
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*/ |
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class JaCompoundGroupTokenizer implements Tokenizer { |
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/** |
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* @var array |
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*/ |
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private $compound = array( |
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"あっ", |
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"あり", |
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"ある", |
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"い", |
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"いう", |
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"いる", |
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"う", |
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"うち", |
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"お", |
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"および", |
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"おり", |
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"か", |
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"かつて", |
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"から", |
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"が", |
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"き", |
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"ここ", |
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"こと", |
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"この", |
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"これ", |
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"これら", |
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"さ", |
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"さらに", |
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"し", |
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"しかし", |
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"する", |
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"ず", |
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"せ", |
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"せる", |
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"そして", |
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"その", |
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"その他", |
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"その後", |
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"それ", |
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"それぞれ", |
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"た", |
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"ただし", |
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"たち", |
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"ため", |
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"たり", |
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"だ", |
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"だっ", |
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"つ", |
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"て", |
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"で", |
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"でき", |
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"できる", |
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"です", |
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"では", |
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"でも", |
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"と", |
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"という", |
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"といった", |
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"とき", |
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"ところ", |
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"として", |
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"とともに", |
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"とも", |
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"と共に", |
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"な", |
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"ない", |
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"なお", |
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"なかっ", |
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"ながら", |
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"なく", |
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"なっ", |
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"など", |
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"なら", |
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"なり", |
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"なる", |
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"に", |
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"において", |
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"における", |
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"について", |
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"にて", |
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"によって", |
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"により", |
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"による", |
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"に対して", |
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"に対する", |
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"に関する", |
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"の", |
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"ので", |
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"のみ", |
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"は", |
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"ば", |
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"へ", |
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"ほか", |
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"ほとんど", |
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"ほど", |
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"ます", |
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"また", |
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"または", |
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"まで", |
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"も", |
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"もの", |
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"ものの", |
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"や", |
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"よう", |
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"より", |
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"ら", |
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"られ", |
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"られる", |
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"れ", |
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"れる", |
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"を", |
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"ん", |
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"及び", |
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"特に", |
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"、", |
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"。", |
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"「", |
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"」" |
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); |
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/** |
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* @var Tokenizer |
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*/ |
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private $tokenizer; |
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/** |
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* @since 0.1 |
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* |
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* @param Tokenizer $tokenizer |
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*/ |
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public function __construct( Tokenizer $tokenizer = null ) { |
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$this->tokenizer = $tokenizer; |
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} |
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/** |
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* @since 0.1 |
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* |
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* {@inheritDoc} |
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*/ |
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public function setOption( $name, $value ) { |
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if ( $this->tokenizer !== null ) { |
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$this->tokenizer->setOption( $name, $value ); |
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} |
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} |
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/** |
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* @since 0.1 |
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* |
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* {@inheritDoc} |
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*/ |
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public function isWordTokenizer() { |
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return false; |
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} |
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/** |
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* @since 0.1 |
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* |
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* {@inheritDoc} |
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*/ |
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2 |
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public function tokenize( $string ) { |
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if ( $this->tokenizer !== null ) { |
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$string = implode( " ", $this->tokenizer->tokenize( $string ) ); |
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} |
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$result = explode( " " , $this->splitByCharacterGroup( |
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str_replace( $this->compound, ' ', $string ) ) |
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); |
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foreach ( $result as $key => $value ) { |
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if ( $value === '' ) { |
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unset( $result[$key] ); |
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} |
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// Single katakana/hiragana are exempted |
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if ( mb_strlen( $value ) === 1 && CharacterExaminer::contains( CharacterExaminer::HIRAGANA_KATAKANA, $value ) ) { |
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unset( $result[$key] ); |
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} |
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} |
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if ( $result !== false ) { |
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return array_values( $result ); |
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} |
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return array(); |
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} |
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/** |
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* @see MediaWiki LanguageJa::segmentByWord |
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* |
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* @since 0.1 |
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* |
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* {@inheritDoc} |
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*/ |
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public function splitByCharacterGroup( $string ) { |
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// Space strings of like hiragana/katakana/kanji |
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$hiragana = '(?:\xe3(?:\x81[\x80-\xbf]|\x82[\x80-\x9f]))'; # U3040-309f |
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$katakana = '(?:\xe3(?:\x82[\xa0-\xbf]|\x83[\x80-\xbf]))'; # U30a0-30ff |
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$kanji = '(?:\xe3[\x88-\xbf][\x80-\xbf]' |
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. '|[\xe4-\xe8][\x80-\xbf]{2}' |
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. '|\xe9[\x80-\xa5][\x80-\xbf]' |
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. '|\xe9\xa6[\x80-\x99])'; |
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# U3200-9999 = \xe3\x88\x80-\xe9\xa6\x99 |
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$reg = "/({$hiragana}+|{$katakana}+|{$kanji}+)/"; |
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return $this->insertSpace( $string, $reg ); |
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} |
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private function insertSpace( $string, $pattern ) { |
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return preg_replace( '/ +/', ' ', preg_replace( $pattern, " $1 ", $string ) ); |
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} |
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} |
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onoi /
tesa
