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arg.h (1036B)

    

  1. /*
  2.  * Copy me if you can.
  3.  * by 20h
  4.  */
  6. #ifndef ARG_H__
  7. #define ARG_H__
  9. extern char *argv0;
  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. 				int i_;\
  25. 				for (i_ = 1, brk_ = 0, argv_ = argv;\
  26. 						argv[0][i_] && !brk_;\
  27. 						i_++) {\
  28. 					if (argv_ != argv)\
  29. 						break;\
  30. 					argc_ = argv[0][i_];\
  31. 					switch (argc_)
  33. #define ARGEND			}\
  34. 			}
  36. #define ARGC()		argc_
  38. #define EARGF(x)	((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
  39. 				((x), abort(), (char *)0) :\
  40. 				(brk_ = 1, (argv[0][i_+1] != '\0')?\
  41. 					(&argv[0][i_+1]) :\
  42. 					(argc--, argv++, argv[0])))
  44. #define ARGF()		((argv[0][i_+1] == '\0' && argv[1] == NULL)?\
  45. 				(char *)0 :\
  46. 				(brk_ = 1, (argv[0][i_+1] != '\0')?\
  47. 					(&argv[0][i_+1]) :\
  48. 					(argc--, argv++, argv[0])))
  50. #endif