Viewing file:  EmailAutolinkProcessor.php (2.18 KB) -rw-r--r--
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<?php
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Extension\Autolink;
use League\CommonMark\Event\DocumentParsedEvent;
use League\CommonMark\Inline\Element\Link;
use League\CommonMark\Inline\Element\Text;
final class EmailAutolinkProcessor
{
const REGEX = '/([A-Za-z0-9.\-_+]+@[A-Za-z0-9\-_]+\.[A-Za-z0-9\-_.]+)/';
/**
* @param DocumentParsedEvent $e
*
* @return void
*/
public function __invoke(DocumentParsedEvent $e)
{
$walker = $e->getDocument()->walker();
while ($event = $walker->next()) {
$node = $event->getNode();
if ($node instanceof Text && !($node->parent() instanceof Link)) {
self::processAutolinks($node);
}
}
}
private static function processAutolinks(Text $node): void
{
$contents = \preg_split(self::REGEX, $node->getContent(), -1, PREG_SPLIT_DELIM_CAPTURE);
if ($contents === false || \count($contents) === 1) {
return;
}
$leftovers = '';
foreach ($contents as $i => $content) {
if ($i % 2 === 0) {
$text = $leftovers . $content;
if ($text !== '') {
$node->insertBefore(new Text($leftovers . $content));
}
$leftovers = '';
continue;
}
// Does the URL end with punctuation that should be stripped?
if (\substr($content, -1) === '.') {
// Add the punctuation later
$content = \substr($content, 0, -1);
$leftovers = '.';
}
// The last character cannot be - or _
if (\in_array(\substr($content, -1), ['-', '_'])) {
$node->insertBefore(new Text($content . $leftovers));
$leftovers = '';
continue;
}
$node->insertBefore(new Link('mailto:' . $content, $content));
}
$node->detach();
}
}
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