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<?php |
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/* |
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* This file is part of the league/commonmark package. |
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* |
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* (c) Colin O'Dell <[email protected]> |
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* (c) 2015 Martin Hasoň <[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 League\CommonMark\Extension\Attributes\Parser; |
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use League\CommonMark\Extension\Attributes\Node\Attributes; |
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use League\CommonMark\Extension\Attributes\Util\AttributesHelper; |
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use League\CommonMark\Node\Block\AbstractBlock; |
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use League\CommonMark\Parser\Block\AbstractBlockContinueParser; |
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use League\CommonMark\Parser\Block\BlockContinue; |
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use League\CommonMark\Parser\Block\BlockContinueParserInterface; |
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use League\CommonMark\Parser\Cursor; |
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final class AttributesBlockContinueParser extends AbstractBlockContinueParser |
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{ |
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private Attributes $block; |
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private AbstractBlock $container; |
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private bool $hasSubsequentLine = false; |
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/** |
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* @param array<string, mixed> $attributes The attributes identified by the block start parser |
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* @param AbstractBlock $container The node we were in when these attributes were discovered |
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*/ |
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public function __construct(array $attributes, AbstractBlock $container) |
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{ |
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$this->block = new Attributes($attributes); |
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$this->container = $container; |
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} |
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public function getBlock(): AbstractBlock |
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{ |
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return $this->block; |
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} |
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public function tryContinue(Cursor $cursor, BlockContinueParserInterface $activeBlockParser): ?BlockContinue |
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{ |
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$this->hasSubsequentLine = true; |
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$cursor->advanceToNextNonSpaceOrTab(); |
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// Does this next line also have attributes? |
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$attributes = AttributesHelper::parseAttributes($cursor); |
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$cursor->advanceToNextNonSpaceOrTab(); |
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if ($cursor->isAtEnd() && $attributes !== []) { |
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// It does! Merge them into what we parsed previously |
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$this->block->setAttributes(AttributesHelper::mergeAttributes( |
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$this->block->getAttributes(), |
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$attributes |
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)); |
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// Tell the core parser we've consumed everything |
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return BlockContinue::at($cursor); |
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} |
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// Okay, so there are no attributes on the next line |
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// If this next line is blank we know we can't target the next node, it must be a previous one |
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if ($cursor->isBlank()) { |
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$this->block->setTarget(Attributes::TARGET_PREVIOUS); |
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} |
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return BlockContinue::none(); |
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} |
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public function closeBlock(): void |
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{ |
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// Attributes appearing at the very end of the document won't have any last lines to check |
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// so we can make that determination here |
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if (! $this->hasSubsequentLine) { |
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$this->block->setTarget(Attributes::TARGET_PREVIOUS); |
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} |
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// We know this block must apply to the "previous" block, but that could be a sibling or parent, |
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// so we check the containing block to see which one it might be. |
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if ($this->block->getTarget() === Attributes::TARGET_PREVIOUS && $this->block->parent() === $this->container) { |
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$this->block->setTarget(Attributes::TARGET_PARENT); |
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} |
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} |
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} |
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thephpleague /
commonmark
