arg.h (1036B) [raw]
1 /* 2 * Copy me if you can. 3 * by 20h 4 */ 5 6 #ifndef ARG_H__ 7 #define ARG_H__ 8 9 extern char *argv0; 10 11 /* use main(int argc, char *argv[]) */ 12 #define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ 13 argv[0] && argv[0][0] == '-'\ 14 && argv[0][1];\ 15 argc--, argv++) {\ 16 char argc_;\ 17 char **argv_;\ 18 int brk_;\ 19 if (argv[0][1] == '-' && argv[0][2] == '\0') {\ 20 argv++;\ 21 argc--;\ 22 break;\ 23 }\ 24 int i_;\ 25 for (i_ = 1, brk_ = 0, argv_ = argv;\ 26 argv[0][i_] && !brk_;\ 27 i_++) {\ 28 if (argv_ != argv)\ 29 break;\ 30 argc_ = argv[0][i_];\ 31 switch (argc_) 32 33 #define ARGEND }\ 34 } 35 36 #define ARGC() argc_ 37 38 #define EARGF(x) ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\ 39 ((x), abort(), (char *)0) :\ 40 (brk_ = 1, (argv[0][i_+1] != '\0')?\ 41 (&argv[0][i_+1]) :\ 42 (argc--, argv++, argv[0]))) 43 44 #define ARGF() ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\ 45 (char *)0 :\ 46 (brk_ = 1, (argv[0][i_+1] != '\0')?\ 47 (&argv[0][i_+1]) :\ 48 (argc--, argv++, argv[0]))) 49 50 #endif