java - 如何在 getopt 类中将连字符作为选项参数

Question

我必须在

中给出“-”作为选项参数

Getopt class

下面是我的代码

Getopt g = new Getopt("cm_log_parser", args, "i:s"); //-D to enable debug log


while((opt = g.getopt()) != -1)
{
    switch (opt)
    {
        case 'f'://To set file name(if above is not specified)
            fileNameWithPath = getAndCheckOptArg(fFlag, opt, g);
            fFlag = true;
            break;

        case 's'://To set the header
            String separator = getAndCheckOptArg(hFlag, opt, g);
            hFlag = true;
            breakk;
        case '?':
            usage("Invalid option" + opt + " option");
            break;
    }
}

我想在参数中给出 -s "-"但它显示一些错误，例如无效选项，有什么办法可以做到吗？

Answer 1

-- 在 Getopt有特殊意义

The user can force getopt() to stop scanning the command line with the special argument "--" by itself. Any elements occuring before the "--" are scanned and permuted as normal. Any elements after the "--" are returned as is as non-option argv elements. For example, "foo -a -- bar -d" would return option 'a' then -1. optind would point to "foo", "bar" and "-d" as the non-option argv elements. The "--" is discarded by getopt().

所以恐怕你无法完成。