arg.h (1091B)
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 #define USED(x) ((void)(x)) 12 13 /* use main(int argc, char *argv[]) */ 14 #define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ 15 argv[0] && argv[0][1]\ 16 && argv[0][0] == '-';\ 17 argc--, argv++) {\ 18 char _argc;\ 19 char **_argv;\ 20 int brk;\ 21 if (argv[0][1] == '-' && argv[0][2] == '\0') {\ 22 argv++;\ 23 argc--;\ 24 break;\ 25 }\ 26 for (brk = 0, argv[0]++, _argv = argv;\ 27 argv[0][0] && !brk;\ 28 argv[0]++) {\ 29 if (_argv != argv)\ 30 break;\ 31 _argc = argv[0][0];\ 32 switch (_argc) 33 34 #define ARGEND }\ 35 USED(_argc);\ 36 }\ 37 USED(argv);\ 38 USED(argc); 39 40 #define ARGC() _argc 41 42 #define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\ 43 ((x), abort(), (char *)0) :\ 44 (brk = 1, (argv[0][1] != '\0')?\ 45 (&argv[0][1]) :\ 46 (argc--, argv++, argv[0]))) 47 48 #define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\ 49 (char *)0 :\ 50 (brk = 1, (argv[0][1] != '\0')?\ 51 (&argv[0][1]) :\ 52 (argc--, argv++, argv[0]))) 53 54 #endif 55