PHP Zend_Search_Lucene_Search_Highlighter_Interface::getDocument方法代码示例

 /**
  * Query specific matches highlighting
  *
  * @param Zend_Search_Lucene_Search_Highlighter_Interface $highlighter  Highlighter object (also contains doc for highlighting)
  */
 protected function _highlightMatches(Zend_Search_Lucene_Search_Highlighter_Interface $highlighter)
 {
     $words = array();
     //$1 'Zend/Search/Lucene/Index/Term.php';
     $prefix = Zend_Search_Lucene_Index_Term::getPrefix($this->_term->text, $this->_prefixLength);
     $prefixByteLength = strlen($prefix);
     $prefixUtf8Length = Zend_Search_Lucene_Index_Term::getLength($prefix);
     $termLength = Zend_Search_Lucene_Index_Term::getLength($this->_term->text);
     $termRest = substr($this->_term->text, $prefixByteLength);
     // we calculate length of the rest in bytes since levenshtein() is not UTF-8 compatible
     $termRestLength = strlen($termRest);
     $scaleFactor = 1 / (1 - $this->_minimumSimilarity);
     $docBody = $highlighter->getDocument()->getFieldUtf8Value('body');
     //$1 'Zend/Search/Lucene/Analysis/Analyzer.php';
     $tokens = Zend_Search_Lucene_Analysis_Analyzer::getDefault()->tokenize($docBody, 'UTF-8');
     foreach ($tokens as $token) {
         $termText = $token->getTermText();
         if (substr($termText, 0, $prefixByteLength) == $prefix) {
             // Calculate similarity
             $target = substr($termText, $prefixByteLength);
             $maxDistance = isset($this->_maxDistances[strlen($target)]) ? $this->_maxDistances[strlen($target)] : $this->_calculateMaxDistance($prefixUtf8Length, $termRestLength, strlen($target));
             if ($termRestLength == 0) {
                 // we don't have anything to compare.  That means if we just add
                 // the letters for current term we get the new word
                 $similarity = $prefixUtf8Length == 0 ? 0 : 1 - strlen($target) / $prefixUtf8Length;
             } else {
                 if (strlen($target) == 0) {
                     $similarity = $prefixUtf8Length == 0 ? 0 : 1 - $termRestLength / $prefixUtf8Length;
                 } else {
                     if ($maxDistance < abs($termRestLength - strlen($target))) {
                         //just adding the characters of term to target or vice-versa results in too many edits
                         //for example "pre" length is 3 and "prefixes" length is 8.  We can see that
                         //given this optimal circumstance, the edit distance cannot be less than 5.
                         //which is 8-3 or more precisesly abs(3-8).
                         //if our maximum edit distance is 4, then we can discard this word
                         //without looking at it.
                         $similarity = 0;
                     } else {
                         $similarity = 1 - levenshtein($termRest, $target) / ($prefixUtf8Length + min($termRestLength, strlen($target)));
                     }
                 }
             }
             if ($similarity > $this->_minimumSimilarity) {
                 $words[] = $termText;
             }
         }
     }
     $highlighter->highlight($words);
 }

 /**
  * Query specific matches highlighting
  *
  * @param Zend_Search_Lucene_Search_Highlighter_Interface $highlighter  Highlighter object (also contains doc for highlighting)
  */
 protected function _highlightMatches(Zend_Search_Lucene_Search_Highlighter_Interface $highlighter)
 {
     $words = array();
     $matchExpression = '/^' . str_replace(array('\\?', '\\*'), array('.', '.*'), preg_quote($this->_pattern->text, '/')) . '$/';
     if (@preg_match('/\\pL/u', 'a') == 1) {
         // PCRE unicode support is turned on
         // add Unicode modifier to the match expression
         $matchExpression .= 'u';
     }
     $docBody = $highlighter->getDocument()->getFieldUtf8Value('body');
     // require_once 'Zend/Search/Lucene/Analysis/Analyzer.php';
     $tokens = Zend_Search_Lucene_Analysis_Analyzer::getDefault()->tokenize($docBody, 'UTF-8');
     foreach ($tokens as $token) {
         if (preg_match($matchExpression, $token->getTermText()) === 1) {
             $words[] = $token->getTermText();
         }
     }
     $highlighter->highlight($words);
 }

 /**
  * Query specific matches highlighting
  *
  * @param Zend_Search_Lucene_Search_Highlighter_Interface $highlighter  Highlighter object (also contains doc for highlighting)
  */
 protected function _highlightMatches(Zend_Search_Lucene_Search_Highlighter_Interface $highlighter)
 {
     $words = array();
     $docBody = $highlighter->getDocument()->getFieldUtf8Value('body');
     // require_once 'Zend/Search/Lucene/Analysis/Analyzer.php';
     $tokens = Zend_Search_Lucene_Analysis_Analyzer::getDefault()->tokenize($docBody, 'UTF-8');
     $lowerTermText = $this->_lowerTerm !== null ? $this->_lowerTerm->text : null;
     $upperTermText = $this->_upperTerm !== null ? $this->_upperTerm->text : null;
     if ($this->_inclusive) {
         foreach ($tokens as $token) {
             $termText = $token->getTermText();
             if (($lowerTermText == null || $lowerTermText <= $termText) && ($upperTermText == null || $termText <= $upperTermText)) {
                 $words[] = $termText;
             }
         }
     } else {
         foreach ($tokens as $token) {
             $termText = $token->getTermText();
             if (($lowerTermText == null || $lowerTermText < $termText) && ($upperTermText == null || $termText < $upperTermText)) {
                 $words[] = $termText;
             }
         }
     }
     $highlighter->highlight($words);
 }