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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) Rezo Zero / Ambroise Maupate |
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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\Footnote\Parser; |
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use League\CommonMark\Configuration\ConfigurationAwareInterface; |
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use League\CommonMark\Configuration\ConfigurationInterface; |
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use League\CommonMark\Extension\Footnote\Node\FootnoteRef; |
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use League\CommonMark\Normalizer\SlugNormalizer; |
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use League\CommonMark\Normalizer\TextNormalizerInterface; |
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use League\CommonMark\Parser\Inline\InlineParserInterface; |
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use League\CommonMark\Parser\Inline\InlineParserMatch; |
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use League\CommonMark\Parser\InlineParserContext; |
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use League\CommonMark\Reference\Reference; |
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final class AnonymousFootnoteRefParser implements InlineParserInterface, ConfigurationAwareInterface |
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{ |
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/** @var ConfigurationInterface */ |
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private $config; |
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/** |
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* @var TextNormalizerInterface |
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* |
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* @psalm-readonly |
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*/ |
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private $slugNormalizer; |
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public function __construct() |
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{ |
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$this->slugNormalizer = new SlugNormalizer(); |
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} |
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public function getMatchDefinition(): InlineParserMatch |
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{ |
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return InlineParserMatch::regex('\^\[([^\]]+)\]'); |
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} |
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public function parse(InlineParserContext $inlineContext): bool |
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{ |
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$inlineContext->getCursor()->advanceBy($inlineContext->getFullMatchLength()); |
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[$label] = $inlineContext->getSubMatches(); |
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$reference = $this->createReference($label); |
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$inlineContext->getContainer()->appendChild(new FootnoteRef($reference, $label)); |
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return true; |
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} |
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/** |
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* @psalm-immutable |
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*/ |
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private function createReference(string $label): Reference |
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{ |
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$refLabel = $this->slugNormalizer->normalize($label); |
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$refLabel = \mb_substr($refLabel, 0, 20); |
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return new Reference( |
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$refLabel, |
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'#' . $this->config->get('footnote/footnote_id_prefix', 'fn:') . $refLabel, |
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$label |
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); |
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} |
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public function setConfiguration(ConfigurationInterface $config): void |
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{ |
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$this->config = $config; |
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} |
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} |
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thephpleague /
commonmark
