pharext\Cli\Args\Help::listSpec PHP Method

    function listSpec()
    {
        $flags = [];
        $required = [];
        $optional = [];
        $positional = [];
        foreach ($this->args->getSpec() as $spec) {
            if (is_numeric($spec[0])) {
                $positional[] = $spec;
            } elseif ($spec[3] & Args::REQUIRED) {
                $required[] = $spec;
            } elseif ($spec[3] & (Args::OPTARG | Args::REQARG)) {
                $optional[] = $spec;
            } else {
                $flags[] = $spec;
            }
        }
        return [$flags, $required, $optional, $positional] + compact("flags", "required", "optional", "positional");
    }