ClearCommand.php
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ClearCommand.php
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	<?php

	/*
	* This file is part of Psy Shell.
	*
	* (c) 2012-2023 Justin Hileman
	*
	* For the full copyright and license information, please view the LICENSE
	* file that was distributed with this source code.
	*/

	namespace Psy\Command;

	use Symfony\Component\Console\Input\InputInterface;
	use Symfony\Component\Console\Output\OutputInterface;

	/**
	* Clear the Psy Shell.
	*
	* Just what it says on the tin.
	*/
	class ClearCommand extends Command
	{
	/**
	* {@inheritdoc}
	*/
	protected function configure()
	{
	$this
	->setName('clear')
	->setDefinition([])
	->setDescription('Clear the Psy Shell screen.')
	->setHelp(
	<<<'HELP'
	Clear the Psy Shell screen.

	Pro Tip: If your PHP has readline support, you should be able to use ctrl+l too!
	HELP
	);
	}

	/**
	* {@inheritdoc}
	*
	* @return int 0 if everything went fine, or an exit code
	*/
	protected function execute(InputInterface $input, OutputInterface $output): int
	{
	$output->write(\sprintf('%c[2J%c[0;0f', 27, 27));

	return 0;
	}
	}