arg.h (1011B) - 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 #define ARGEND			}\
     33 			}
     34 
     35 #define ARGC()		argc_
     36 
     37 #define EARGF(x)	((argv[0][1] == '\0' && argv[1] == NULL)?\
     38 				((x), abort(), (char *)0) :\
     39 				(brk_ = 1, (argv[0][1] != '\0')?\
     40 					(&argv[0][1]) :\
     41 					(argc--, argv++, argv[0])))
     42 
     43 #define ARGF()		((argv[0][1] == '\0' && argv[1] == NULL)?\
     44 				(char *)0 :\
     45 				(brk_ = 1, (argv[0][1] != '\0')?\
     46 					(&argv[0][1]) :\
     47 					(argc--, argv++, argv[0])))
     48 
     49 #endif