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
|
/* copyright (c) 2022 grunfink - MIT license */
#ifndef _XS_REGEX_H
#define _XS_REGEX_H
d_char *xs_regex_match(char *str, char *rx, int count);
#define xs_regex_matchall(str, rx) xs_regex_match(str, rx, 0xfffffff)
#ifdef XS_IMPLEMENTATION
#include <regex.h>
d_char *xs_regex_match(char *str, char *rx, int count)
/* returns a list with upto count matches */
{
regex_t re;
regmatch_t rm;
d_char *list = NULL;
int offset = 0;
char *p;
if (regcomp(&re, rx, REG_EXTENDED))
return NULL;
list = xs_list_new();
while (count > 0 && !regexec(&re, (p = str + offset), 1, &rm, offset > 0 ? REG_NOTBOL : 0)) {
/* add the first part */
list = xs_list_append_m(list, p + rm.rm_so, rm.rm_eo - rm.rm_so);
/* add the asciiz */
list = xs_str_cat(list, "");
offset += rm.rm_eo;
count--;
}
regfree(&re);
return list;
}
#endif /* XS_IMPLEMENTATION */
#endif /* XS_REGEX_H */
|
