Deployment\CommandLine::parse PHP Метод

    public function parse(array $args = NULL)
    {
        if ($args === NULL) {
            $args = isset($_SERVER['argv']) ? array_slice($_SERVER['argv'], 1) : [];
        }
        $params = [];
        reset($this->positional);
        $i = 0;
        while ($i < count($args)) {
            $arg = $args[$i++];
            if ($arg[0] !== '-') {
                if (!current($this->positional)) {
                    throw new \Exception("Unexpected parameter {$arg}.");
                }
                $name = current($this->positional);
                $this->checkArg($this->options[$name], $arg);
                if (empty($this->options[$name][self::REPEATABLE])) {
                    $params[$name] = $arg;
                    next($this->positional);
                } else {
                    $params[$name][] = $arg;
                }
                continue;
            }
            list($name, $arg) = strpos($arg, '=') ? explode('=', $arg, 2) : [$arg, TRUE];
            if (isset($this->aliases[$name])) {
                $name = $this->aliases[$name];
            } elseif (!isset($this->options[$name])) {
                throw new \Exception("Unknown option {$name}.");
            }
            $opt = $this->options[$name];
            if ($arg !== TRUE && empty($opt[self::ARGUMENT])) {
                throw new \Exception("Option {$name} has not argument.");
            } elseif ($arg === TRUE && !empty($opt[self::ARGUMENT])) {
                if (isset($args[$i]) && $args[$i][0] !== '-') {
                    $arg = $args[$i++];
                } elseif (empty($opt[self::OPTIONAL])) {
                    throw new \Exception("Option {$name} requires argument.");
                }
            }
            $this->checkArg($opt, $arg);
            if (empty($opt[self::REPEATABLE])) {
                $params[$name] = $arg;
            } else {
                $params[$name][] = $arg;
            }
        }
        foreach ($this->options as $name => $opt) {
            if (isset($params[$name])) {
                continue;
            } elseif (isset($opt[self::VALUE])) {
                $params[$name] = $opt[self::VALUE];
            } elseif ($name[0] !== '-' && empty($opt[self::OPTIONAL])) {
                throw new \Exception("Missing required argument <{$name}>.");
            } else {
                $params[$name] = NULL;
            }
            if (!empty($opt[self::REPEATABLE])) {
                $params[$name] = (array) $params[$name];
            }
        }
        return $params;
    }