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<?php |
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/** |
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* Highlighter |
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* |
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* Copyright (C) 2016, Some right reserved. |
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* |
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* @author Kacper "Kadet" Donat <[email protected]> |
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* |
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* Contact with author: |
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* Xmpp: [email protected] |
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* E-mail: [email protected] |
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* |
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* From Kadet with love. |
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*/ |
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namespace Kadet\Highlighter\Parser\Token; |
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use Kadet\Highlighter\Language\Language; |
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use Kadet\Highlighter\Parser\Result; |
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use Kadet\Highlighter\Parser\Rule; |
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use Kadet\Highlighter\Parser\TokenIterator; |
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use Kadet\Highlighter\Parser\Validator\Validator; |
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use Kadet\Highlighter\Utils\ArrayHelper; |
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use Kadet\Highlighter\Utils\Helper; |
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class Token |
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{ |
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const NAME = null; |
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const START = 0x1; |
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const END = 0x2; |
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protected static $_id = 0; |
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public $pos; |
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public $name; |
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public $closedBy; |
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public $index = 1; |
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public $id; |
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public $rule; |
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# region >>> cache |
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/** |
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* @var static|null|false |
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*/ |
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protected $_end; |
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/** |
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* @var static|null|false |
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*/ |
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protected $_start; |
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protected $_valid; |
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protected $_length; |
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# endregion |
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/** |
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* Token constructor. |
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* |
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* @param array $options |
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*/ |
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public function __construct(array $options) |
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{ |
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if (isset($options[0])) { |
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$this->name = $options[0]; |
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$this->closedBy = $this->name; |
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} |
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if (isset($options['pos'])) { |
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$this->pos = $options['pos']; |
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} |
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if (isset($options['index'])) { |
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$this->index = $options['index']; |
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} |
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if (isset($options['start'])) { |
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$this->setStart($options['start']); |
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} |
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$this->rule = isset($options['rule']) ? $options['rule'] : new Rule(); |
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if (isset($options['end'])) { |
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$this->setEnd($options['end']); |
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} |
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if (isset($options['closed-by'])) { |
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$this->closedBy = $options['closed-by']; |
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} |
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$this->id = ++self::$_id; |
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} |
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public function isStart() |
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{ |
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return $this->_start === null; |
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} |
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public function isEnd() |
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{ |
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return $this->_end === null; |
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} |
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public function isValid(Language $language, $context = null) |
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{ |
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if ($this->_valid === null) { |
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$this->validate($language, $context); |
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} |
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return $this->_valid; |
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} |
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protected function validate(Language $language, $context) |
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{ |
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$this->setValid( |
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$language === $this->rule->language && |
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$this->rule->validator->validate($context, $this->isEnd() ? [$this->name => Validator::CONTEXT_IN] : []) |
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); |
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} |
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public function setValid($valid = true) |
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{ |
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$this->_valid = $valid; |
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if ($this->_end) { |
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$this->_end->_valid = $this->_valid; |
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} elseif ($this->_start) { |
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$this->_start->_valid = $this->_valid; |
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} |
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} |
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/** |
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* @return Token|null|false |
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*/ |
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public function getStart() |
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{ |
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return $this->_start; |
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} |
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/** |
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* @param Token|null|false $start |
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*/ |
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View Code Duplication |
public function setStart($start = null) |
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{ |
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$this->_end = null; |
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$this->_start = $start; |
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if ($start instanceof Token) { |
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$this->_start->_length = null; |
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$start->_end = $this; |
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} |
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} |
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/** |
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* @return Token|null|false |
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*/ |
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public function getEnd() |
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{ |
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return $this->_end; |
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} |
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/** |
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* @param Token|null|false $end |
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*/ |
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View Code Duplication |
public function setEnd($end = null) |
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{ |
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$this->_start = null; |
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$this->_end = $end; |
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$this->_length = null; |
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if ($end instanceof Token) { |
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$end->_start = $this; |
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} |
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} |
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public function getLength() |
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{ |
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if ($this->_length === null) { |
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$this->_length = !$this->_end ? 0 : $this->_end->pos - $this->pos; |
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} |
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return $this->_length; |
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} |
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public function __get($name) |
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{ |
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return $this->rule->$name; |
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} |
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/** |
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* @param array $context |
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* @param Language $language |
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* @param Result $result |
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* @param TokenIterator $tokens |
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* |
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* todo: Documentation |
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* |
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* @return bool Continue? |
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*/ |
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public function process(array &$context, Language $language, Result $result, TokenIterator $tokens) { |
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if(!$this->isValid($language, $context)) { |
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return true; |
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} |
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if($this->isStart()) { |
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$result->append($this); |
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$context[$tokens->key()] = $this->name; |
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} else { |
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if($this->_start) { |
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unset($context[spl_object_hash($this->_start)]); |
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} else { |
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$start = ArrayHelper::find(array_reverse($context), function ($k, $v) { |
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return $v === $this->closedBy; |
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}); |
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if ($start !== false) { |
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$this->setStart($tokens[$start]); |
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unset($context[$start]); |
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} |
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} |
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if (!$this->_start instanceof MetaToken) { |
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$result->append($this); |
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} |
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} |
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return true; |
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} |
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public static function compare(Token $a, Token $b) |
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{ |
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$multiplier = $a->isEnd() ? -1 : 1; |
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if (($a->isStart() && $b->isEnd()) || ($a->isEnd() && $b->isStart())) { |
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if ($a->getStart() == $b) { |
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return 1; |
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1 |
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} elseif ($a->getEnd() == $b) { |
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return -1; |
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} else { |
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return $multiplier; |
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} |
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} elseif (($rule = Helper::cmp($b->rule->priority, $a->rule->priority)) !== 0) { |
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return $multiplier*$rule; |
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} elseif (($rule = Helper::cmp($b->index, $a->index)) !== 0) { |
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return $multiplier*$rule; |
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} else { |
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return $multiplier*($a->id < $b->id ? -1 : 1); |
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} |
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} |
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} |
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kadet1090 /
KeyLighter
