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 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_)
32
33#define ARGEND }\
34 }
35
36#define ARGC() argc_
37
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])))
43
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])))
49
50#endif