Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of Psy Shell.
Chris@0:  *
Chris@0:  * (c) 2012-2018 Justin Hileman
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Psy\Command;
Chris@0: 
Chris@0: use Symfony\Component\Console\Input\InputInterface;
Chris@0: use Symfony\Component\Console\Output\OutputInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Clear the Psy Shell.
Chris@0:  *
Chris@0:  * Just what it says on the tin.
Chris@0:  */
Chris@0: class ClearCommand extends Command
Chris@0: {
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     protected function configure()
Chris@0:     {
Chris@0:         $this
Chris@0:             ->setName('clear')
Chris@0:             ->setDefinition([])
Chris@0:             ->setDescription('Clear the Psy Shell screen.')
Chris@0:             ->setHelp(
Chris@0:                 <<<'HELP'
Chris@0: Clear the Psy Shell screen.
Chris@0: 
Chris@0: Pro Tip: If your PHP has readline support, you should be able to use ctrl+l too!
Chris@0: HELP
Chris@0:             );
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     protected function execute(InputInterface $input, OutputInterface $output)
Chris@0:     {
Chris@4:         $output->write(\sprintf('%c[2J%c[0;0f', 27, 27));
Chris@0:     }
Chris@0: }