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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Parser\AST; |
| 4 | |
| 5 | use CirrusSearch\Parser\AST\Visitor\Visitor; |
| 6 | |
| 7 | /** |
| 8 | * A phrase |
| 9 | */ |
| 10 | class PhraseQueryNode extends ParsedNode { |
| 11 | /** |
| 12 | * @var string |
| 13 | */ |
| 14 | private $phrase; |
| 15 | |
| 16 | /** |
| 17 | * @var int |
| 18 | */ |
| 19 | private $slop; |
| 20 | |
| 21 | /** |
| 22 | * @var bool |
| 23 | */ |
| 24 | private $stem; |
| 25 | |
| 26 | /** |
| 27 | * @var bool |
| 28 | */ |
| 29 | private $unbalanced = false; |
| 30 | |
| 31 | /** |
| 32 | * @param int $start |
| 33 | * @param int $end |
| 34 | * @param string $phrase |
| 35 | * @param int $slop the edit distance (in words) allowed between words defined in this query, set to -1 |
| 36 | * if a specific slop is not specified in the syntax. |
| 37 | * @param bool $stem true if the syntax specifies that this phrase should be applied to stem fields |
| 38 | */ |
| 39 | public function __construct( $start, $end, $phrase, $slop, $stem ) { |
| 40 | parent::__construct( $start, $end ); |
| 41 | $this->phrase = $phrase; |
| 42 | $this->slop = $slop; |
| 43 | $this->stem = $stem; |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * @param int $start |
| 48 | * @param int $end |
| 49 | * @param string $phrase |
| 50 | * @return PhraseQueryNode |
| 51 | */ |
| 52 | public static function unbalanced( $start, $end, $phrase ) { |
| 53 | $node = new self( $start, $end, $phrase, -1, false ); |
| 54 | $node->unbalanced = true; |
| 55 | return $node; |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * @return array |
| 60 | */ |
| 61 | public function toArray() { |
| 62 | return [ |
| 63 | 'phrase' => array_merge( parent::baseParams(), [ |
| 64 | 'phrase' => $this->phrase, |
| 65 | 'slop' => $this->slop, |
| 66 | 'stem' => $this->stem, |
| 67 | 'unbalanced' => $this->unbalanced, |
| 68 | ] ) |
| 69 | ]; |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * The phrase |
| 74 | * @return string |
| 75 | */ |
| 76 | public function getPhrase() { |
| 77 | return $this->phrase; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * number of words allowed between phrase words |
| 82 | * (-1 to use wiki defaults) |
| 83 | * @return int |
| 84 | */ |
| 85 | public function getSlop() { |
| 86 | return $this->slop; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Should this phrase be applied on stem fields |
| 91 | * @return bool |
| 92 | */ |
| 93 | public function isStem() { |
| 94 | return $this->stem; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * True if this phrase was created by detecting unbalanced quotes in the query |
| 99 | * @return bool |
| 100 | */ |
| 101 | public function isUnbalanced() { |
| 102 | return $this->unbalanced; |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * @param Visitor $visitor |
| 107 | */ |
| 108 | public function accept( Visitor $visitor ) { |
| 109 | $visitor->visitPhraseQueryNode( $this ); |
| 110 | } |
| 111 | } |