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<?php |
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/** |
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* This file is part of PHP-Yacc package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace PhpYacc\Console; |
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use PhpYacc\Generator; |
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use PhpYacc\Grammar\Context; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Exception\InvalidArgumentException; |
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use Symfony\Component\Console\Exception\InvalidOptionException; |
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use Symfony\Component\Console\Exception\RuntimeException; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Input\InputOption; |
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use Symfony\Component\Console\Output\OutputInterface; |
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/** |
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* Class GenerateCommand |
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*/ |
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class GenerateCommand extends Command |
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{ |
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/** |
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* @return void |
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*/ |
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public function configure(): void |
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{ |
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$this->setName('generate'); |
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$this->setDescription('The command to generate a parser.'); |
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$this->addArgument('grammar', InputArgument::REQUIRED, 'Grammar file.'); |
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$this->addOption('skeleton', 's', InputOption::VALUE_REQUIRED, 'Specify the skeleton to use.'); |
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$this->addOption('output', 'o', InputOption::VALUE_REQUIRED, 'Leave output to file.'); |
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$this->addOption('class', 'c', InputOption::VALUE_REQUIRED, 'Parser class name.', 'YaccParser'); |
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} |
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/** |
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* @param InputInterface $input |
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* @param OutputInterface $output |
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* @return void |
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*/ |
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public function execute(InputInterface $input, OutputInterface $output): void |
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{ |
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$this->validateInput($input); |
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$grammar = $input->getArgument('grammar'); |
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$skeleton = $input->getOption('skeleton'); |
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$class = $input->getOption('class'); |
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$result = $input->getOption('output') ?? \sprintf('.%s%s.php', DIRECTORY_SEPARATOR, $class); |
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$context = new Context(\basename($grammar)); |
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$context->className = $class; |
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$this->generate($context, $grammar, $skeleton, $result); |
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$output->writeln('<info>OK</info>'); |
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} |
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/** |
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* @param InputInterface $input |
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* @return void |
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*/ |
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private function validateInput(InputInterface $input): void |
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{ |
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$skeleton = $input->getOption('skeleton'); |
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if ($skeleton === null || ! \file_exists($skeleton)) { |
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throw new InvalidOptionException(\sprintf('The skeleton file "%s" is not found', $skeleton)); |
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} |
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$grammar = $input->getArgument('grammar'); |
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if (! \file_exists($grammar)) { |
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throw new InvalidArgumentException(\sprintf('The grammar file "%s" is not found', $grammar)); |
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} |
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} |
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/** |
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* @param Context $context |
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* @param string $grammar |
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* @param string $skeleton |
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* @param string $result |
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* @return void |
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*/ |
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private function generate(Context $context, string $grammar, string $skeleton, string $result): void |
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{ |
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$generator = new Generator(); |
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try { |
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$generator->generate($context, \file_get_contents($grammar), \file_get_contents($skeleton), $result); |
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} catch (\Exception $e) { |
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throw new RuntimeException($e->getMessage()); |
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} |
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} |
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} |
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stenin-nikita /
PHP-Yacc
