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
|
// SPDX-License-Identifier: GPL-3.0-or-later
#include "log2journal.h"
void search_pattern_cleanup(SEARCH_PATTERN *sp) {
if(sp->pattern) {
freez((void *)sp->pattern);
sp->pattern = NULL;
}
if(sp->re) {
pcre2_code_free(sp->re);
sp->re = NULL;
}
if(sp->match_data) {
pcre2_match_data_free(sp->match_data);
sp->match_data = NULL;
}
txt_cleanup(&sp->error);
}
static void pcre2_error_message(SEARCH_PATTERN *sp, int rc, int pos) {
char msg[1024];
pcre2_get_error_in_buffer(msg, sizeof(msg), rc, pos);
txt_replace(&sp->error, msg, strlen(msg));
}
static inline bool compile_pcre2(SEARCH_PATTERN *sp) {
int error_number;
PCRE2_SIZE error_offset;
PCRE2_SPTR pattern_ptr = (PCRE2_SPTR)sp->pattern;
sp->re = pcre2_compile(pattern_ptr, PCRE2_ZERO_TERMINATED, 0, &error_number, &error_offset, NULL);
if (!sp->re) {
pcre2_error_message(sp, error_number, (int) error_offset);
return false;
}
return true;
}
bool search_pattern_set(SEARCH_PATTERN *sp, const char *search_pattern, size_t search_pattern_len) {
search_pattern_cleanup(sp);
sp->pattern = strndupz(search_pattern, search_pattern_len);
if (!compile_pcre2(sp))
return false;
sp->match_data = pcre2_match_data_create_from_pattern(sp->re, NULL);
return true;
}
|
