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comparison src/ploki/opt.c @ 4223:ac0403686959

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<oerjan> rm -rf src/ploki; mv ploki src
author HackBot
date Fri, 20 Dec 2013 22:18:50 +0000
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4222:b0f3e267bb1e 4223:ac0403686959
1 #include "opt.h"
2
3 #include <string.h>
4
5 int opt_ind;
6 int opt_err;
7 const char *opt_arg;
8 static const char *nextchar;
9
10 int opt_get(int argc, char *const *argv, const char *opts) {
11 const char *p;
12
13 if (!nextchar || !*nextchar) {
14 if (opt_ind < argc)
15 ++opt_ind;
16 if (opt_ind >= argc || argv[opt_ind][0] != '-' || !argv[opt_ind][1]) {
17 return -1;
18 }
19 if (argv[opt_ind][1] == '-' && argv[opt_ind][2] == '\0') {
20 ++opt_ind;
21 return -1;
22 }
23 nextchar = argv[opt_ind] + 1;
24 }
25
26 if ((p = strchr(opts, *nextchar)) && (*p != ':' || p == opts)) {
27 if (p[1] == ':') {
28 if (nextchar[1]) {
29 opt_arg = nextchar + 1;
30 } else if (opt_ind + 1 >= argc) {
31 opt_arg = NULL;
32 } else {
33 opt_arg = argv[++opt_ind];
34 }
35 nextchar = NULL;
36 } else {
37 ++nextchar;
38 }
39 return p[0];
40 }
41
42 opt_err = *nextchar++;
43 return '\0';
44 }
45
46 #if 0
47 void opt_reset(void) {
48 opt_ind = 0;
49 nextchar = NULL;
50 }
51 #endif