arg.h

/*
 * Copy me if you can.
 * by 20h
 */

#ifndef ARG_H__
#define ARG_H__

extern char *argv0;

/* use main(int argc, char *argv[]) */
#define ARGBEGIN                                     \
	for (argv0 = *argv, argv++, argc--;              \
		 argv[0] && argv[0][0] == '-' && argv[0][1]; \
		 argc--, argv++)                             \
	{                                                \
		char argc_;                                  \
		char **argv_;                                \
		int brk_;                                    \
		if (argv[0][1] == '-' && argv[0][2] == '\0') \
		{                                            \
			argv++;                                  \
			argc--;                                  \
			break;                                   \
		}                                            \
		int i_;                                      \
		for (i_ = 1, brk_ = 0, argv_ = argv;         \
			 argv[0][i_] && !brk_;                   \
			 i_++)                                   \
		{                                            \
			if (argv_ != argv)                       \
				break;                               \
			argc_ = argv[0][i_];                     \
			switch (argc_)

#define ARGEND \
	}          \
	}

#define ARGC() argc_

#define EARGF(x) ((argv[0][i_ + 1] == '\0' && argv[1] == NULL) ? ((x), abort(), (char *)0) : (brk_ = 1, (argv[0][i_ + 1] != '\0') ? (&argv[0][i_ + 1]) : (argc--, argv++, argv[0])))

#define ARGF() ((argv[0][i_ + 1] == '\0' && argv[1] == NULL) ? (char *)0 : (brk_ = 1, (argv[0][i_ + 1] != '\0') ? (&argv[0][i_ + 1]) : (argc--, argv++, argv[0])))

#endif