Chris@13: <?php
Chris@13: 
Chris@13: /*
Chris@13:  * This file is part of Psy Shell.
Chris@13:  *
Chris@13:  * (c) 2012-2018 Justin Hileman
Chris@13:  *
Chris@13:  * For the full copyright and license information, please view the LICENSE
Chris@13:  * file that was distributed with this source code.
Chris@13:  */
Chris@13: 
Chris@13: namespace Psy\Command;
Chris@13: 
Chris@13: use Psy\Output\ShellOutput;
Chris@13: use Symfony\Component\Console\Input\InputInterface;
Chris@13: use Symfony\Component\Console\Input\InputOption;
Chris@13: use Symfony\Component\Console\Output\OutputInterface;
Chris@13: 
Chris@13: /**
Chris@13:  * Interact with the current code buffer.
Chris@13:  *
Chris@13:  * Shows and clears the buffer for the current multi-line expression.
Chris@13:  */
Chris@13: class BufferCommand extends Command
Chris@13: {
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     protected function configure()
Chris@13:     {
Chris@13:         $this
Chris@13:             ->setName('buffer')
Chris@13:             ->setAliases(['buf'])
Chris@13:             ->setDefinition([
Chris@13:                 new InputOption('clear', '', InputOption::VALUE_NONE, 'Clear the current buffer.'),
Chris@13:             ])
Chris@13:             ->setDescription('Show (or clear) the contents of the code input buffer.')
Chris@13:             ->setHelp(
Chris@13:                 <<<'HELP'
Chris@13: Show the contents of the code buffer for the current multi-line expression.
Chris@13: 
Chris@13: Optionally, clear the buffer by passing the <info>--clear</info> option.
Chris@13: HELP
Chris@13:             );
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * {@inheritdoc}
Chris@13:      */
Chris@13:     protected function execute(InputInterface $input, OutputInterface $output)
Chris@13:     {
Chris@13:         $buf = $this->getApplication()->getCodeBuffer();
Chris@13:         if ($input->getOption('clear')) {
Chris@13:             $this->getApplication()->resetCodeBuffer();
Chris@13:             $output->writeln($this->formatLines($buf, 'urgent'), ShellOutput::NUMBER_LINES);
Chris@13:         } else {
Chris@13:             $output->writeln($this->formatLines($buf), ShellOutput::NUMBER_LINES);
Chris@13:         }
Chris@13:     }
Chris@13: 
Chris@13:     /**
Chris@13:      * A helper method for wrapping buffer lines in `<urgent>` and `<return>` formatter strings.
Chris@13:      *
Chris@13:      * @param array  $lines
Chris@13:      * @param string $type  (default: 'return')
Chris@13:      *
Chris@13:      * @return array Formatted strings
Chris@13:      */
Chris@13:     protected function formatLines(array $lines, $type = 'return')
Chris@13:     {
Chris@17:         $template = \sprintf('<%s>%%s</%s>', $type, $type);
Chris@13: 
Chris@17:         return \array_map(function ($line) use ($template) {
Chris@17:             return \sprintf($template, $line);
Chris@13:         }, $lines);
Chris@13:     }
Chris@13: }