nixos-dotfiles

/*

 * 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;\

				}\

				for (brk_ = 0, argv[0]++, argv_ = argv;\

						argv[0][0] && !brk_;\

						argv[0]++) {\

					if (argv_ != argv)\

						break;\

					argc_ = argv[0][0];\

					switch (argc_)

#define ARGEND			}\

			}

#define ARGC()		argc_

#define EARGF(x)	((argv[0][1] == '\0' && argv[1] == NULL)?\

				((x), abort(), (char *)0) :\

				(brk_ = 1, (argv[0][1] != '\0')?\

					(&argv[0][1]) :\

					(argc--, argv++, argv[0])))

#define ARGF()		((argv[0][1] == '\0' && argv[1] == NULL)?\

				(char *)0 :\

				(brk_ = 1, (argv[0][1] != '\0')?\

					(&argv[0][1]) :\

					(argc--, argv++, argv[0])))

#endif