Essence\Cli::_parse PHP Method

    public function _parse(array $arguments)
    {
        // strips away the program name
        array_shift($arguments);
        if (count($arguments) < 2) {
            $arguments = ['help'];
        }
        switch ($arguments[0]) {
            case 'crawl':
                $this->_crawl($arguments[1]);
                break;
            case 'extract':
                $this->_extract($arguments[1]);
                break;
            case 'help':
            default:
                $this->_help();
                break;
        }
    }