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Revision 148 Revision 991
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use League\CommonMark\Node\NodeIterator;
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use League\CommonMark\Node\NodeIterator;
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use League\CommonMark\Node\RawMarkupContainerInterface;
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use League\CommonMark\Node\RawMarkupContainerInterface;
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use League\CommonMark\Node\StringContainerHelper;
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use League\CommonMark\Node\StringContainerHelper;
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use League\CommonMark\Normalizer\TextNormalizerInterface;
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use League\CommonMark\Normalizer\TextNormalizerInterface;
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use League\Config\ConfigurationInterface;
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use League\Config\ConfigurationInterface;
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use League\Config\Exception\InvalidConfigurationException;
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/**
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/**
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 * Searches the Document for Heading elements and adds HeadingPermalinks to each one
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 * Searches the Document for Heading elements and adds HeadingPermalinks to each one
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 */
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 */
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final class HeadingPermalinkProcessor implements EnvironmentAwareInterface
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final class HeadingPermalinkProcessor implements EnvironmentAwareInterface
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{
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{
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    public const INSERT_BEFORE = 'before';
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    public const INSERT_BEFORE = 'before';
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    public const INSERT_AFTER  = 'after';
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    public const INSERT_AFTER  = 'after';
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    public const INSERT_NONE   = 'none';
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    /** @psalm-readonly-allow-private-mutation */
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    /** @psalm-readonly-allow-private-mutation */
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        $this->slugNormalizer = $environment->getSlugNormalizer();
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        $this->slugNormalizer = $environment->getSlugNormalizer();
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    }
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    }
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    public function __invoke(DocumentParsedEvent $e): void
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    public function __invoke(DocumentParsedEvent $e): void
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    {
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    {
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        $min = (int) $this->config->get('heading_permalink/min_heading_level');
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        $min            = (int) $this->config->get('heading_permalink/min_heading_level');
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        $max            = (int) $this->config->get('heading_permalink/max_heading_level');
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        $applyToHeading = (bool) $this->config->get('heading_permalink/apply_id_to_heading');
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        $idPrefix       = (string) $this->config->get('heading_permalink/id_prefix');
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        $slugLength     = (int) $this->config->get('slug_normalizer/max_length');
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        $headingClass   = (string) $this->config->get('heading_permalink/heading_class');
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        $max = (int) $this->config->get('heading_permalink/max_heading_level');
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        if ($idPrefix !== '') {
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            $idPrefix .= '-';
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        $slugLength = (int) $this->config->get('slug_normalizer/max_length');
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        }
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        foreach ($e->getDocument()->iterator(NodeIterator::FLAG_BLOCKS_ONLY) as $node) {
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        foreach ($e->getDocument()->iterator(NodeIterator::FLAG_BLOCKS_ONLY) as $node) {
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            if ($node instanceof Heading && $node->getLevel() >= $min && $node->getLevel() <= $max) {
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            if ($node instanceof Heading && $node->getLevel() >= $min && $node->getLevel() <= $max) {
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                $this->addHeadingLink($node, $slugLength);
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                $this->addHeadingLink($node, $slugLength, $idPrefix, $applyToHeading, $headingClass);
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            }
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            }
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        }
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        }
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    }
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    }
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    private function addHeadingLink(Heading $heading, int $slugLength): void
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    private function addHeadingLink(Heading $heading, int $slugLength, string $idPrefix, bool $applyToHeading, string $headingClass): void
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    {
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    {
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        $text = StringContainerHelper::getChildText($heading, [RawMarkupContainerInterface::class]);
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        $text = StringContainerHelper::getChildText($heading, [RawMarkupContainerInterface::class]);
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        $slug = $this->slugNormalizer->normalize($text, [
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            'node' => $heading,
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            'length' => $slugLength,
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        ]);
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        if ($applyToHeading) {
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            $heading->data->set('attributes/id', $idPrefix . $slug);
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        }
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        $slug = $this->slugNormalizer->normalize($text, [
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            'node' => $heading,
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        if ($headingClass !== '') {
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            'length' => $slugLength,
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            $heading->data->append('attributes/class', $headingClass);
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        ]);
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        }
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                return;
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                return;
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            case self::INSERT_AFTER:
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            case self::INSERT_AFTER:
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                $heading->appendChild($headingLinkAnchor);
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                $heading->appendChild($headingLinkAnchor);
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                return;
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            case self::INSERT_NONE:
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                return;
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                return;
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            default:
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            default:
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                throw new \RuntimeException("Invalid configuration value for heading_permalink/insert; expected 'before' or 'after'");
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                throw new InvalidConfigurationException("Invalid configuration value for heading_permalink/insert; expected 'before', 'after', or 'none'");
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        }
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        }
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    }
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    }