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arg.h (732B)


      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 #define ARGBEGIN	for (argv0 = *argv, argv++, argc--;\
     14 					argv[0] && argv[0][1]\
     15 					&& argv[0][0] == '-';\
     16 					argc--, argv++) {\
     17 				char _argc;\
     18 				char **_argv;\
     19 				if (argv[0][1] == '-' && argv[0][2] == '\0') {\
     20 					argv++;\
     21 					argc--;\
     22 					break;\
     23 				}\
     24 				for (argv[0]++, _argv = argv; argv[0][0];\
     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 EARGF(x)	((argv[1] == NULL)? ((x), abort(), (char *)0) :\
     38 			(argc--, argv++, argv[0]))
     39 
     40 #endif
     41