thunderer / Shortcode

    private function applyReplaces($text, array $replaces)

    {

        return array_reduce(array_reverse($replaces), function($state, ReplacedShortcode $s) {

            $offset = $s->getOffset();

            $length = mb_strlen($s->getText());

            return mb_substr($state, 0, $offset).$s->getReplacement().mb_substr($state, $offset + $length);

        }, $text);

    }

    private function prepareHandlerContext(ParsedShortcodeInterface $shortcode, ProcessorContext $context)

        $events = new EventContainer();

        $events->addListener(Events::REPLACE_SHORTCODES, function(ReplaceShortcodesEvent $event) {

            $event->setResult(array_reduce(array_reverse($event->getReplacements()), function($state, ReplacedShortcode $r) {

                $offset = $r->getOffset();

                $length = mb_strlen($r->getText());

                return mb_substr($state, 0, $offset).$r->getReplacement().mb_substr($state, $offset + $length);

            }, $event->getText()));

        });

        $processor = new Processor(new RegularParser(), $handlers);