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<?php |
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/** |
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* (c) Steve Nebes <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace DaisyDiff\Html\Ancestor; |
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use DaisyDiff\Html\Dom\TagNode; |
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use DaisyDiff\RangeDifferencer\RangeComparatorInterface; |
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use DaisyDiff\RangeDifferencer\RangeDifference; |
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use DaisyDiff\RangeDifferencer\RangeDifferencer; |
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/** |
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* A comparator used when calculating the difference in ancestry of two Nodes. |
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*/ |
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class AncestorComparator implements RangeComparatorInterface |
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{ |
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/** @var TagNode[] */ |
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private $ancestors = []; |
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/** @var string */ |
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private $compareText = ''; |
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/** |
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* @param TagNode[] $ancestors |
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*/ |
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public function __construct(?array $ancestors) |
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{ |
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$this->ancestors = $ancestors ?? []; |
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} |
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/** |
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* @return int |
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*/ |
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public function getRangeCount(): int |
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{ |
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return \count($this->ancestors); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function rangesEqual(int $thisIndex, RangeComparatorInterface $other, int $otherIndex): bool |
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{ |
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if ($other instanceof AncestorComparator) { |
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return $other->getAncestor($otherIndex)->isSameTag($this->getAncestor($thisIndex)); |
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} |
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return false; // @codeCoverageIgnore |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function skipRangeComparison(int $length, int $maxLength, RangeComparatorInterface $other): bool |
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{ |
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return false; |
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} |
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/** |
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* @param int $index |
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* @return TagNode|null |
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* |
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* @throws \OutOfBoundsException |
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*/ |
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public function getAncestor(int $index): ?TagNode |
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{ |
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if (!isset($this->ancestors[$index])) { |
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throw new \OutOfBoundsException(\sprintf('Index: %d, Size: %d', $index, \count($this->ancestors))); |
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} |
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return $this->ancestors[$index]; |
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} |
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/** |
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* @return string |
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*/ |
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public function getCompareTxt(): string |
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{ |
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return $this->compareText; |
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} |
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/** |
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* @param AncestorComparator $other |
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* @return AncestorComparatorResult |
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*/ |
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public function getResult(AncestorComparator $other): AncestorComparatorResult |
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{ |
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$result = new AncestorComparatorResult(); |
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/** @var RangeDifference[] */ |
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$differences = RangeDifferencer::findDifferences($other, $this); |
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if (empty($differences)) { |
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return $result; |
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} |
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// $changeText = new ChangeTextGenerator($this, $other); |
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$result->setChanged(true); |
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// $result->setChanges($changeText->getChanged($differences)->__toString()); |
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// $result->setHtmlLayoutChanges($changeText->getHtmlLayoutChanges()); |
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return $result; |
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} |
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} |
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snebes /
php-daisydiff
