arg.h (1113B)
1 /* See the LICENSE file for copyright and license details. */ 2 3 #ifndef __ARG_H__ 4 #define __ARG_H__ 5 6 extern char *argv0; 7 8 #define USED(x) ((void)(x)) 9 10 /* use main(int argc, char *argv[]) */ 11 #define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ 12 argv[0] && argv[0][1]\ 13 && argv[0][0] == '-';\ 14 argc--, argv++) {\ 15 char _argc;\ 16 char **_argv;\ 17 int brk;\ 18 if (argv[0][1] == '-' && argv[0][2] == '\0') {\ 19 argv++;\ 20 argc--;\ 21 break;\ 22 }\ 23 for (brk = 0, argv[0]++, _argv = argv;\ 24 argv[0][0] && !brk;\ 25 argv[0]++) {\ 26 if (_argv != argv)\ 27 break;\ 28 _argc = argv[0][0];\ 29 switch (_argc) 30 31 #define ARGEND }\ 32 USED(_argc);\ 33 }\ 34 USED(argv);\ 35 USED(argc); 36 37 #define ARGC() _argc 38 39 #define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\ 40 ((x), abort(), (char *)0) :\ 41 (brk = 1, (argv[0][1] != '\0')?\ 42 (&argv[0][1]) :\ 43 (argc--, argv++, argv[0]))) 44 45 #define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\ 46 (char *)0 :\ 47 (brk = 1, (argv[0][1] != '\0')?\ 48 (&argv[0][1]) :\ 49 (argc--, argv++, argv[0]))) 50 51 #endif 52