args.h

extern char *argv0;
#define USED(x) ((void)x)
#define SET(x) ((x)=0)

#define ARGBEGIN        for((argv0||(argv0=*argv)),argv++,argc--;\
                            argv[0] && argv[0][0]=='-' && argv[0][1];\
                            argc--, argv++) {\
                                char *_args, *_argt;\
                                char _argc;\
                                _args = &argv[0][1];\
                                if(_args[0]=='-' && _args[1]==0){\
                                        argc--; argv++; break;\
                                }\
                                _argc = 0;\
                                while(*_args && (_argc = *_args++))\
                                switch(_argc)
#define ARGEND          SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc);
#define ARGF()          (_argt=_args, _args=(char*)"",\
                                (*_argt? _argt: argv[1]? (argc--, *++argv): 0))
#define EARGF(x)        (_argt=_args, _args=(char*)"",\
                                (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))

#define ARGC()          _argc