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
|
#pragma once
#include <al/str.h>
#include "list.h"
AL_IGNORE_WARNING("-Wunused-function")
static void camu_db_num_from_path(str *path, s64 *id, s64 *index)
{
u32 last_slash = al_str_rfind(path, '/');
if (last_slash == AL_WSTR_NO_POS) {
return;
}
str sub = al_str_substr(path, last_slash + 1, path->length);
// Skip 2 '_' characters.
if (!(al_str_tok(&sub, '_') && al_str_tok(&sub, '_'))) {
return;
}
u32 target = al_str_find(&sub, '_');
if (target == AL_WSTR_NO_POS) {
return;
}
sub = al_str_substr(&sub, 0, target);
bool error;
s64 num = al_str_to_long(&sub, 10, &error);
if (error) return;
*id = num;
u32 ext_dot = al_str_rfind(path, '.');
u32 a_of_media = al_str_rfind(path, 'a');
if (ext_dot == AL_WSTR_NO_POS || a_of_media == AL_WSTR_NO_POS) {
return;
}
sub = al_str_substr(path, a_of_media + 1, ext_dot);
num = al_str_to_long(&sub, 10, &error);
if (error) return;
*index = num;
}
static s32 camu_db_compare(const void *a, const void *b)
{
struct lia_list_entry *aa = *((struct lia_list_entry **)a);
struct lia_list_entry *bb = *((struct lia_list_entry **)b);
s64 a_id = -1, a_index = -1;
s64 b_id = -1, b_index = -1;
// Assuming brief is the file path.
camu_db_num_from_path(&aa->brief, &a_id, &a_index);
camu_db_num_from_path(&bb->brief, &b_id, &b_index);
if (a_id == b_id) {
if (a_index > b_index) return 1;
else if (a_index < b_index) return -1;
} else {
if (a_id > b_id) return 1;
else if (a_id < b_id) return -1;
}
return 0;
}
AL_IGNORE_WARNING_END
|