/**
  * Transform entry to a subquery
  *
  * @param string $encoding
  * @return Zend_Search_Lucene_Search_Query
  * @throws Zend_Search_Lucene_Search_QueryParserException
  */
 public function getQuery($encoding)
 {
     if ($this->_fuzzyQuery) {
         /** Zend_Search_Lucene_Search_Query_Preprocessing_Fuzzy */
         require_once 'Zend/Search/Lucene/Search/Query/Preprocessing/Fuzzy.php';
         $query = new Zend_Search_Lucene_Search_Query_Preprocessing_Fuzzy($this->_term, $encoding, $this->_field !== null ? iconv($encoding, 'UTF-8', $this->_field) : null, $this->_similarity);
         $query->setBoost($this->_boost);
         return $query;
     }
     /** Zend_Search_Lucene_Search_Query_Preprocessing_Term */
     require_once 'Zend/Search/Lucene/Search/Query/Preprocessing/Term.php';
     $query = new Zend_Search_Lucene_Search_Query_Preprocessing_Term($this->_term, $encoding, $this->_field !== null ? iconv($encoding, 'UTF-8', $this->_field) : null);
     $query->setBoost($this->_boost);
     return $query;
 }

 /**
  * Re-write query into primitive queries in the context of specified index
  *
  * @param Zend_Search_Lucene_Interface $index
  * @return Zend_Search_Lucene_Search_Query
  */
 public function rewrite(Zend_Search_Lucene_Interface $index)
 {
     if ($this->_field === null) {
         require_once 'Zend/Search/Lucene/Search/Query/MultiTerm.php';
         $query = new Zend_Search_Lucene_Search_Query_MultiTerm();
         $query->setBoost($this->getBoost());
         $hasInsignificantSubqueries = false;
         require_once 'Zend/Search/Lucene.php';
         if (Zend_Search_Lucene::getDefaultSearchField() === null) {
             $searchFields = $index->getFieldNames(true);
         } else {
             $searchFields = array(Zend_Search_Lucene::getDefaultSearchField());
         }
         require_once 'Zend/Search/Lucene/Search/Query/Preprocessing/Term.php';
         foreach ($searchFields as $fieldName) {
             $subquery = new Zend_Search_Lucene_Search_Query_Preprocessing_Term($this->_word, $this->_encoding, $fieldName);
             $rewrittenSubquery = $subquery->rewrite($index);
             foreach ($rewrittenSubquery->getQueryTerms() as $term) {
                 $query->addTerm($term);
             }
             if ($rewrittenSubquery instanceof Zend_Search_Lucene_Search_Query_Insignificant) {
                 $hasInsignificantSubqueries = true;
             }
         }
         if (count($query->getTerms()) == 0) {
             $this->_matches = array();
             if ($hasInsignificantSubqueries) {
                 require_once 'Zend/Search/Lucene/Search/Query/Insignificant.php';
                 return new Zend_Search_Lucene_Search_Query_Insignificant();
             } else {
                 require_once 'Zend/Search/Lucene/Search/Query/Empty.php';
                 return new Zend_Search_Lucene_Search_Query_Empty();
             }
         }
         $this->_matches = $query->getQueryTerms();
         return $query;
     }
     // -------------------------------------
     // Recognize exact term matching (it corresponds to Keyword fields stored in the index)
     // encoding is not used since we expect binary matching
     require_once 'Zend/Search/Lucene/Index/Term.php';
     $term = new Zend_Search_Lucene_Index_Term($this->_word, $this->_field);
     if ($index->hasTerm($term)) {
         require_once 'Zend/Search/Lucene/Search/Query/Term.php';
         $query = new Zend_Search_Lucene_Search_Query_Term($term);
         $query->setBoost($this->getBoost());
         $this->_matches = $query->getQueryTerms();
         return $query;
     }
     // -------------------------------------
     // Recognize wildcard queries
     /** @todo check for PCRE unicode support may be performed through Zend_Environment in some future */
     if (@preg_match('/\\pL/u', 'a') == 1) {
         $word = iconv($this->_encoding, 'UTF-8', $this->_word);
         $wildcardsPattern = '/[*?]/u';
         $subPatternsEncoding = 'UTF-8';
     } else {
         $word = $this->_word;
         $wildcardsPattern = '/[*?]/';
         $subPatternsEncoding = $this->_encoding;
     }
     $subPatterns = preg_split($wildcardsPattern, $word, -1, PREG_SPLIT_OFFSET_CAPTURE);
     if (count($subPatterns) > 1) {
         // Wildcard query is recognized
         $pattern = '';
         require_once 'Zend/Search/Lucene/Analysis/Analyzer.php';
         foreach ($subPatterns as $id => $subPattern) {
             // Append corresponding wildcard character to the pattern before each sub-pattern (except first)
             if ($id != 0) {
                 $pattern .= $word[$subPattern[1] - 1];
             }
             // Check if each subputtern is a single word in terms of current analyzer
             $tokens = Zend_Search_Lucene_Analysis_Analyzer::getDefault()->tokenize($subPattern[0], $subPatternsEncoding);
             if (count($tokens) > 1) {
                 require_once 'Zend/Search/Lucene/Search/QueryParserException.php';
                 throw new Zend_Search_Lucene_Search_QueryParserException('Wildcard search is supported only for non-multiple word terms');
             }
             foreach ($tokens as $token) {
                 $pattern .= $token->getTermText();
             }
         }
         require_once 'Zend/Search/Lucene/Index/Term.php';
         $term = new Zend_Search_Lucene_Index_Term($pattern, $this->_field);
         require_once 'Zend/Search/Lucene/Search/Query/Wildcard.php';
         $query = new Zend_Search_Lucene_Search_Query_Wildcard($term);
         $query->setBoost($this->getBoost());
         // Get rewritten query. Important! It also fills terms matching container.
         $rewrittenQuery = $query->rewrite($index);
         $this->_matches = $query->getQueryTerms();
         return $rewrittenQuery;
     }
     // -------------------------------------
     // Recognize one-term multi-term and "insignificant" queries
     require_once 'Zend/Search/Lucene/Analysis/Analyzer.php';
//.........这里部分代码省略.........

 /**
  * Transform entry to a subquery
  *
  * @param string $encoding
  * @return Zend_Search_Lucene_Search_Query
  * @throws Zend_Search_Lucene_Search_QueryParserException
  */
 public function getQuery($encoding)
 {
     if ($this->_fuzzyQuery) {
         $query = new Zend_Search_Lucene_Search_Query_Preprocessing_Fuzzy($this->_term, $encoding, $this->_field !== null ? iconv($encoding, 'UTF-8', $this->_field) : null, $this->_similarity);
         $query->setBoost($this->_boost);
         return $query;
     }
     $query = new Zend_Search_Lucene_Search_Query_Preprocessing_Term($this->_term, $encoding, $this->_field !== null ? iconv($encoding, 'UTF-8', $this->_field) : null);
     $query->setBoost($this->_boost);
     return $query;
 }