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<?php |
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namespace Goetas\Twital\EventSubscriber; |
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use Goetas\Twital\EventDispatcher\CompilerEvents; |
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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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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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} |
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public static function getSubscribedEvents() |
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{ |
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return array( |
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CompilerEvents::PRE_LOAD => array('addPlaceholder', 128), |
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CompilerEvents::POST_DUMP => array('removePlaceholder', -128), |
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); |
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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 = $this->processTwig($source, function ($twig, $source, $offset) use ($format, &$placeholders) { |
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$before = $offset > 0 ? $source[$offset - 1] : ''; |
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$id = ('<' === $before || '/' === $before) ? $twig : mt_rand(); |
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$placeholder = sprintf($format, md5($id)); |
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if (!in_array($before, array(' ', '<', '>', '/'), true)) { |
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$placeholder = ' ' . $placeholder; |
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} |
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$placeholders[$placeholder] = $twig; |
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return $placeholder; |
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}); |
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$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 = $this->processPlaceholder($source, 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 $matches[0]; |
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} |
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}); |
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$event->setTemplate($source); |
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} |
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} |
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