/*
 * Copy me if you can.
 * by 20h
 */
#ifndef ARG_H__
#define ARG_H__

extern char *argv0;

#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