mirror of
https://codeberg.org/grunfink/snac2.git
synced 2024-11-10 03:50:38 +03:00
48 lines
970 B
C
48 lines
970 B
C
/* 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 */
|