arg.h

   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