arg.h
1/*
2 * Copy me if you can.
3 * by 20h
4 */
5
6#ifndef ARG_H__
7#define ARG_H__
8
9extern char *argv0;
10
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 for (brk_ = 0, argv[0]++, argv_ = argv;\
25 argv[0][0] && !brk_;\
26 argv[0]++) {\
27 if (argv_ != argv)\
28 break;\
29 argc_ = argv[0][0];\
30 switch (argc_)
31#define ARGEND }\
32 }
33
34#define ARGC() argc_
35
36#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
37 ((x), abort(), (char *)0) :\
38 (brk_ = 1, (argv[0][1] != '\0')?\
39 (&argv[0][1]) :\
40 (argc--, argv++, argv[0])))
41
42#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
43 (char *)0 :\
44 (brk_ = 1, (argv[0][1] != '\0')?\
45 (&argv[0][1]) :\
46 (argc--, argv++, argv[0])))
47
48#endif
