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<?php |
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namespace Goetas\Twital\EventSubscriber; |
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use Goetas\Twital\EventDispatcher\SourceEvent; |
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/** |
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* |
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* @author Martin Hasoň <[email protected]> |
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* |
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*/ |
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class FixTwigExpressionSubscriber extends AbstractTwigExpressionSubscriber |
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{ |
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public static function getSubscribedEvents() |
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{ |
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return array( |
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'compiler.pre_load' => array('addPlaceholder', 128), |
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'compiler.post_dump' => array('removePlaceholder', -128), |
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); |
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} |
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protected $placeholders = array(); |
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public function __construct($placeholder = array('twital', 'twital'), array $options = array()) |
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{ |
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parent::__construct($placeholder, $options); |
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$this->regexes = array_merge($this->regexes, array( |
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'placeholder' => '{( ?)('.preg_quote($placeholder[0]).'[a-z0-9]+?'.preg_quote($placeholder[1]).')}iu', |
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)); |
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$this->regexes['twig'] = '{(.?)('.substr($this->regexes['twig'], 1, -5).')}siuU'; |
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} |
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/** |
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* |
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* @param SourceEvent $event |
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*/ |
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public function addPlaceholder(SourceEvent $event) |
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{ |
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$source = $event->getTemplate(); |
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$format = $this->placeholderFormat; |
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$placeholders = array(); |
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$source = preg_replace_callback($this->regexes['twig'], function ($matches) use ($format, &$placeholders) { |
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$startChar = $matches[1]; |
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$placeholder = sprintf($format, md5(mt_rand())); |
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if (!in_array($startChar, array(' ', '<', '>', '/'), true)) { |
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$placeholder = ' '.$placeholder; |
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} |
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$placeholders[$placeholder] = $matches[2]; |
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return $startChar.$placeholder; |
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}, $source); |
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$this->placeholders = $placeholders; |
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$event->setTemplate($source); |
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} |
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/** |
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* |
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* @param SourceEvent $event |
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*/ |
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public function removePlaceholder(SourceEvent $event) |
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{ |
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$source = $event->getTemplate(); |
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$placeholders = $this->placeholders; |
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$source = preg_replace_callback($this->regexes['placeholder'], function($matches) use ($placeholders) { |
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if (isset($placeholders[$matches[0]])) { |
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return $placeholders[$matches[0]]; |
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} elseif (isset($placeholders[$matches[2]])) { |
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return $matches[1].$placeholders[$matches[2]]; |
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} else { |
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return $matches[0]; |
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} |
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}, $source); |
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$event->setTemplate($source); |
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} |
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} |
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goetas /
twital
