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<?php |
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namespace Goetas\Twital\EventSubscriber; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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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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abstract class AbstractTwigExpressionSubscriber implements EventSubscriberInterface |
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{ |
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const REGEX_STRING = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"|\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\''; |
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protected $placeholderFormat = ''; |
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protected $regexes = array(); |
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448 |
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public function __construct(array $placeholder = array('[_TWITAL_[', ']_TWITAL_]'), array $options = array()) |
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{ |
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$this->placeholderFormat = $placeholder[0].'%s'.$placeholder[1]; |
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$options = array_merge(array( |
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'tag_block' => array('{%', '%}'), |
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'tag_variable' => array('{{', '}}'), |
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'tag_comment' => array('{#', '#}'), |
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), $options); |
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$this->regexes = array( |
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'twig_start' => '{('.preg_quote($options['tag_block'][0]).'|'.preg_quote($options['tag_variable'][0]).'|'.preg_quote($options['tag_comment'][0]).')}', |
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'placeholder' => '{('.preg_quote($placeholder[0]).'(.+)'.preg_quote($placeholder[1]).')}siuU', |
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'twig_inner_'.$options['tag_block'][0] => '{('.self::REGEX_STRING.'|'.preg_quote($options['tag_block'][1]).'|([^"\']*?'.preg_quote($options['tag_block'][1]).')|[^"\']*)}si', |
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'twig_inner_'.$options['tag_variable'][0] => '{('.self::REGEX_STRING.'|'.preg_quote($options['tag_variable'][1]).'|([^"\']*?'.preg_quote($options['tag_variable'][1]).')|[^"\']*)}si', |
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'twig_inner_'.$options['tag_comment'][0] => '{((.*?'.preg_quote($options['tag_comment'][1]).'))}si', |
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); |
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} |
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protected function processTwig($template, \CLosure $processor) |
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{ |
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$offset = 0; |
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while (preg_match($this->regexes['twig_start'], $template, $matches, PREG_OFFSET_CAPTURE, $offset)) { |
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$twig = ''; |
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$buffer = $matches[0][0]; |
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$from = $matches[0][1]; |
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$offset = $from + strlen($buffer); |
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$pattern = $this->regexes['twig_inner_'.$buffer]; |
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while (preg_match($pattern, $template, $inners, PREG_OFFSET_CAPTURE, $offset)) { |
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$buffer .= $inners[0][0]; |
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$offset += strlen($inners[0][0]); |
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if (isset($inners[2])) { |
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$twig = $buffer; |
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break; |
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} |
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}; |
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if (!$twig) { |
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continue; |
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} |
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$replacement = $processor($twig, $template, $from); |
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$template = substr_replace($template, $replacement, $from, $offset - $from); |
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$offset = $from + strlen($replacement); |
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} |
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return $template; |
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} |
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protected function processPlaceholder($template, \Closure $processor) |
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{ |
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return preg_replace_callback($this->regexes['placeholder'], $processor, $template); |
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} |
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} |
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goetas /
twital
