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
/*
* Copy me if you can.
* by 20h
*/
#ifndef ARG_H__
#define ARG_H__
extern char *argv0;
#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; \
} \
for (brk_ = 0, argv[0]++, argv_ = argv; \
argv[0][0] && !brk_; \
argv[0]++) { \
if (argv_ != argv) \
break; \
argc_ = argv[0][0]; \
switch (argc_)
#define ARGEND } \
}
#define ARGC() argc_
#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL) ? \
((x), abort(), (char *)0) : \
(brk_ = 1, (argv[0][1] != '\0') ? \
(&argv[0][1]) : \
(argc--, argv++, argv[0])))
#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL) ? \
(char *)0 : \
(brk_ = 1, (argv[0][1] != '\0') ? \
(&argv[0][1]) : \
(argc--, argv++, argv[0])))
#endif
