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<?php |
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/* |
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* This file is part of the league/commonmark-ext-autolink package. |
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* |
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* (c) Colin O'Dell <[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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namespace League\CommonMark\Ext\Autolink; |
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use League\CommonMark\Block\Element\Document; |
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use League\CommonMark\DocumentProcessorInterface; |
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use League\CommonMark\Inline\Element\Link; |
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use League\CommonMark\Inline\Element\Text; |
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final class EmailAutolinkProcessor implements DocumentProcessorInterface |
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{ |
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const REGEX = '/([A-Za-z0-9.\-_+]+@[A-Za-z0-9\-_]+\.[A-Za-z0-9\-_.]+)/'; |
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/** |
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* @param Document $document |
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* |
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* @return void |
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*/ |
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public function processDocument(Document $document) |
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{ |
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$walker = $document->walker(); |
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while ($event = $walker->next()) { |
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if ($event->getNode() instanceof Text) { |
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self::processAutolinks($event->getNode()); |
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} |
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} |
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} |
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private static function processAutolinks(Text $node) |
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{ |
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$contents = \preg_split(self::REGEX, $node->getContent(), -1, PREG_SPLIT_DELIM_CAPTURE); |
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if (\count($contents) === 1) { |
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return; |
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} |
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$leftovers = ''; |
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foreach ($contents as $i => $content) { |
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if ($i % 2 === 0) { |
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$text = $leftovers.$content; |
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if ($text !== '') { |
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$node->insertBefore(new Text($leftovers . $content)); |
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} |
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$leftovers = ''; |
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continue; |
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} |
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// Does the URL end with punctuation that should be stripped? |
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if (\substr($content, -1) === '.') { |
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// Add the punctuation later |
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$content = \substr($content, 0, -1); |
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$leftovers = '.'; |
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} |
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// The last character cannot be - or _ |
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if (\in_array(\substr($content, -1), ['-', '_'])) { |
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$node->insertBefore(new Text($content . $leftovers)); |
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$leftovers = ''; |
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continue; |
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} |
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$node->insertBefore(new Link('mailto:' . $content, $content)); |
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} |
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$node->detach(); |
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} |
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} |
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thephpleague /
commonmark-ext-autolink
