arg.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
/* * Copy me if you can. * by 20h */ #ifndef ARG_H__ #define ARG_H__ extern char *argv0; /* use main(int argc, char *argv[]) */ #define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ argv[0] && argv[0][0] == '-'\ && argv[0][1];\ argc--, argv++) {\ char argc_;\ char **argv_;\ int brk_;\ if (argv[0][1] == '-' && argv[0][2] == '\0') {\ argv++;\ argc--;\ break;\ }\ int i_;\ for (i_ = 1, brk_ = 0, argv_ = argv;\ argv[0][i_] && !brk_;\ i_++) {\ if (argv_ != argv)\ break;\ argc_ = argv[0][i_];\ switch (argc_) #define ARGEND }\ } #define ARGC() argc_ #define EARGF(x) ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\ ((x), abort(), (char *)0) :\ (brk_ = 1, (argv[0][i_+1] != '\0')?\ (&argv[0][i_+1]) :\ (argc--, argv++, argv[0]))) #define ARGF() ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\ (char *)0 :\ (brk_ = 1, (argv[0][i_+1] != '\0')?\ (&argv[0][i_+1]) :\ (argc--, argv++, argv[0]))) #endif