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setName('buffer')
->setAliases(['buf'])
->setDefinition([
new InputOption('clear', '', InputOption::VALUE_NONE, 'Clear the current buffer.'),
])
->setDescription('Show (or clear) the contents of the code input buffer.')
->setHelp(
<<<'HELP'
Show the contents of the code buffer for the current multi-line expression.
Optionally, clear the buffer by passing the --clear option.
HELP
);
}
/**
* {@inheritdoc}
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$buf = $this->getApplication()->getCodeBuffer();
if ($input->getOption('clear')) {
$this->getApplication()->resetCodeBuffer();
$output->writeln($this->formatLines($buf, 'urgent'), ShellOutput::NUMBER_LINES);
} else {
$output->writeln($this->formatLines($buf), ShellOutput::NUMBER_LINES);
}
return 0;
}
/**
* A helper method for wrapping buffer lines in `` and `` formatter strings.
*
* @param array $lines
* @param string $type (default: 'return')
*
* @return array Formatted strings
*/
protected function formatLines(array $lines, string $type = 'return'): array
{
$template = \sprintf('<%s>%%s', $type, $type);
return \array_map(function ($line) use ($template) {
return \sprintf($template, $line);
}, $lines);
}
}