arg.h (1310B) - 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 				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 ARGNUMF()	(brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
     50 
     51 #define EARGF(x)	((argv[0][1] == '\0' && argv[1] == NULL)?\
     52 				((x), abort(), (char *)0) :\
     53 				(brk_ = 1, (argv[0][1] != '\0')?\
     54 					(&argv[0][1]) :\
     55 					(argc--, argv++, argv[0])))
     56 
     57 #define ARGF()		((argv[0][1] == '\0' && argv[1] == NULL)?\
     58 				(char *)0 :\
     59 				(brk_ = 1, (argv[0][1] != '\0')?\
     60 					(&argv[0][1]) :\
     61 					(argc--, argv++, argv[0])))
     62 
     63 #define LNGARG()	&argv[0][0]
     64 
     65 #endif