arg.h (1218B)
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][1]\ 14 && argv[0][0] == '-';\ 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 for (brk_ = 0, argv[0]++, argv_ = argv;\ 25 argv[0][0] && !brk_;\ 26 argv[0]++) {\ 27 if (argv_ != argv)\ 28 break;\ 29 argc_ = argv[0][0];\ 30 switch (argc_) 31 32 /* Handles obsolete -NUM syntax */ 33 #define ARGNUM case '0':\ 34 case '1':\ 35 case '2':\ 36 case '3':\ 37 case '4':\ 38 case '5':\ 39 case '6':\ 40 case '7':\ 41 case '8':\ 42 case '9' 43 44 #define ARGEND }\ 45 } 46 47 #define ARGC() argc_ 48 49 #define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\ 50 ((x), abort(), (char *)0) :\ 51 (brk_ = 1, (argv[0][1] != '\0')?\ 52 (&argv[0][1]) :\ 53 (argc--, argv++, argv[0]))) 54 55 #define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\ 56 (char *)0 :\ 57 (brk_ = 1, (argv[0][1] != '\0')?\ 58 (&argv[0][1]) :\ 59 (argc--, argv++, argv[0]))) 60 61 #endif