arg.h - gramscii - A simple editor for ASCII box-and-arrow charts
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       ---
       arg.h (685B)
       ---
            1 #ifndef ARG_H
            2 #define ARG_H
            3 
            4 #define USED(x) ((void)(x))
            5 
            6 extern char *argv0;
            7 
            8 #define ARGBEGIN        for(argv0 = *argv, argv++, argc--;\
            9                                         argv[0] && argv[0][0] == '-'\
           10                                         && argv[0][1];\
           11                                         argc--, argv++) {\
           12                                 char _argc;\
           13                                 char **_argv;\
           14                                 int i_;\
           15                                 if(argv[0][1] == '-' && argv[0][2] == '\0') {\
           16                                         argv++;\
           17                                         argc--;\
           18                                         break;\
           19                                 }\
           20                                 for(i_ = 1, _argv = argv; argv[0][i_];\
           21                                                 i_++) {\
           22                                         if(_argv != argv)\
           23                                                 break;\
           24                                         _argc = argv[0][i_];\
           25                                         switch(_argc)
           26 
           27 #define ARGEND                        }\
           28                                 USED(_argc);\
           29                         }\
           30                         USED(argv);\
           31                         USED(argc);
           32 
           33 #define        EARGF(x)        ((argv[1] == NULL)? ((x), abort(), (char *)0) :\
           34                         (argc--, argv++, argv[0]))
           35 
           36 #endif
           37