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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* names.c -- example of group name callback.
*/
#include<stdio.h>
#include "oniguruma.h"
static int
name_callback(UChar* name, int ngroup_num, int* group_nums, void* arg)
{
int i, gn;
RegRegion *region = (RegRegion* )arg;
for (i = 0; i < ngroup_num; i++) {
gn = group_nums[i];
fprintf(stderr, "%s (%d): ", name, gn);
fprintf(stderr, "(%d-%d)\n", region->beg[gn], region->end[gn]);
}
return 0; /* 0: continue */
}
extern int main(int argc, char* argv[])
{
int r;
unsigned char *start, *range, *end;
regex_t* reg;
RegErrorInfo einfo;
RegRegion *region;
static unsigned char* pattern = "(?<foo>a*)(?<bar>b*)(?<foo>c*)";
static unsigned char* str = "aaabbbbcc";
r = regex_new(®, pattern, pattern + strlen(pattern),
REG_OPTION_DEFAULT, REGCODE_ASCII, REG_SYNTAX_DEFAULT, &einfo);
if (r != REG_NORMAL) {
char s[REG_MAX_ERROR_MESSAGE_LEN];
regex_error_code_to_str(s, r, &einfo);
fprintf(stderr, "ERROR: %s\n", s);
exit(-1);
}
region = regex_region_new();
end = str + strlen(str);
start = str;
range = end;
r = regex_search(reg, str, end, start, range, region, REG_OPTION_NONE);
if (r >= 0) {
fprintf(stderr, "match at %d\n\n", r);
r = regex_foreach_name(reg, name_callback, (void* )region);
}
else if (r == REG_MISMATCH) {
fprintf(stderr, "search fail\n");
}
else { /* error */
char s[REG_MAX_ERROR_MESSAGE_LEN];
regex_error_code_to_str(s, r);
exit(-1);
}
regex_region_free(region, 1 /* 1:free self, 0:free contents only */);
regex_free(reg);
regex_end();
return 0;
}
|
