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Merge pull request #409 from thephpleague/gfm-extensions
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,25 @@ | ||
<?php | ||
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/* | ||
* 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. | ||
*/ | ||
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namespace League\CommonMark\Extension\Autolink; | ||
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use League\CommonMark\ConfigurableEnvironmentInterface; | ||
use League\CommonMark\Event\DocumentParsedEvent; | ||
use League\CommonMark\Extension\ExtensionInterface; | ||
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final class AutolinkExtension implements ExtensionInterface | ||
{ | ||
public function register(ConfigurableEnvironmentInterface $environment) | ||
{ | ||
$environment->addEventListener(DocumentParsedEvent::class, new EmailAutolinkProcessor()); | ||
$environment->addEventListener(DocumentParsedEvent::class, new UrlAutolinkProcessor()); | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,78 @@ | ||
<?php | ||
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||
/* | ||
* 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. | ||
*/ | ||
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||
namespace League\CommonMark\Extension\Autolink; | ||
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use League\CommonMark\Event\DocumentParsedEvent; | ||
use League\CommonMark\Inline\Element\Link; | ||
use League\CommonMark\Inline\Element\Text; | ||
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final class EmailAutolinkProcessor | ||
{ | ||
const REGEX = '/([A-Za-z0-9.\-_+]+@[A-Za-z0-9\-_]+\.[A-Za-z0-9\-_.]+)/'; | ||
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/** | ||
* @param DocumentParsedEvent $e | ||
* | ||
* @return void | ||
*/ | ||
public function __invoke(DocumentParsedEvent $e) | ||
{ | ||
$walker = $e->getDocument()->walker(); | ||
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while ($event = $walker->next()) { | ||
$node = $event->getNode(); | ||
if ($node instanceof Text && !($node->parent() instanceof Link)) { | ||
self::processAutolinks($node); | ||
} | ||
} | ||
} | ||
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private static function processAutolinks(Text $node) | ||
{ | ||
$contents = \preg_split(self::REGEX, $node->getContent(), -1, PREG_SPLIT_DELIM_CAPTURE); | ||
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if ($contents === false || \count($contents) === 1) { | ||
return; | ||
} | ||
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$leftovers = ''; | ||
foreach ($contents as $i => $content) { | ||
if ($i % 2 === 0) { | ||
$text = $leftovers . $content; | ||
if ($text !== '') { | ||
$node->insertBefore(new Text($leftovers . $content)); | ||
} | ||
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$leftovers = ''; | ||
continue; | ||
} | ||
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// Does the URL end with punctuation that should be stripped? | ||
if (\substr($content, -1) === '.') { | ||
// Add the punctuation later | ||
$content = \substr($content, 0, -1); | ||
$leftovers = '.'; | ||
} | ||
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// The last character cannot be - or _ | ||
if (\in_array(\substr($content, -1), ['-', '_'])) { | ||
$node->insertBefore(new Text($content . $leftovers)); | ||
$leftovers = ''; | ||
continue; | ||
} | ||
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$node->insertBefore(new Link('mailto:' . $content, $content)); | ||
} | ||
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$node->detach(); | ||
} | ||
} |
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