Subversion Repositories planix.SVN

Rev

Rev 2 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
#include <u.h>
2 
#include <libc.h>
3 
 
4 
void
5 
usage(void)
6 
{
7 
	print("status=usage\n");
8 
	exits(0);
9 
}
10 
 
11 
char*
12 
findarg(char *flags, Rune r)
13 
{
14 
	char *p;
15 
	Rune rr;
16 
 
17 
	for(p=flags; p!=(char*)1; p=strchr(p, ',')+1){
18 
		chartorune(&rr, p);
19 
		if(rr == r)
20 
			return p;
21 
	}
22 
	return nil;
23 
}
24 
 
25 
int
26 
countargs(char *p)
27 
{
28 
	int n;
29 
 
30 
	n = 1;
31 
	while(*p == ' ')
32 
		p++;
33 
	for(; *p && *p != ','; p++)
34 
		if(*p == ' ' && *(p-1) != ' ')
35 
			n++;
36 
	return n;
37 
}
38 
 
39 
void
40 
main(int argc, char *argv[])
41 
{
42 
	char *flags, *p, buf[512];
43 
	int i, n;
44 
	Fmt fmt;
45 
 
46 
	doquote = needsrcquote;
47 
	quotefmtinstall();
48 
	argv0 = argv[0];	/* for sysfatal */
49 
 
50 
	flags = getenv("flagfmt");
51 
	if(flags == nil){
52 
		fprint(2, "$flagfmt not set\n");
53 
		print("exit 'missing flagfmt'");
54 
		exits(0);
55 
	}
56 
 
57 
	fmtfdinit(&fmt, 1, buf, sizeof buf);
58 
	for(p=flags; p!=(char*)1; p=strchr(p, ',')+1)
59 
		fmtprint(&fmt, "flag%.1s=()\n", p);
60 
	ARGBEGIN{
61 
	default:
62 
		if((p = findarg(flags, ARGC())) == nil)
63 
			usage();
64 
		p += runelen(ARGC());
65 
		if(*p == ',' || *p == 0){
66 
			fmtprint(&fmt, "flag%C=1\n", ARGC());
67 
			break;
68 
		}
69 
		n = countargs(p);
70 
		fmtprint(&fmt, "flag%C=(", ARGC());
71 
		for(i=0; i<n; i++)
72 
			fmtprint(&fmt, "%s%q", i ? " " : "", EARGF(usage()));
73 
		fmtprint(&fmt, ")\n");
74 
	}ARGEND
75 
 
76 
	fmtprint(&fmt, "*=(");
77 
	for(i=0; i<argc; i++)
78 
		fmtprint(&fmt, "%s%q", i ? " " : "", argv[i]);
79 
	fmtprint(&fmt, ")\n");
80 
	fmtprint(&fmt, "status=''\n");
81 
	fmtfdflush(&fmt);
82 
	exits(0);
83 
}