/*
* Compares the given strings. Returns a positive number if
* the first precedes the second, a negative number if the second is
* the preceding one, and zero if they are equal. This function calls
* the underlying collate functions, which done the actual comparison.
*/
int
key_coll(struct keys_array *ps1, struct keys_array *ps2, size_t offset)
{
struct key_value *kv1, *kv2;
struct sort_mods *sm;
int res = 0;
for (size_t i = 0; i < keys_num; ++i) {
kv1 = get_key_from_keys_array(ps1, i);
kv2 = get_key_from_keys_array(ps2, i);
sm = &(keys[i].sm);
if (sm->rflag)
res = sm->func(kv2, kv1, offset);
else
res = sm->func(kv1, kv2, offset);
if (res)
break;
/* offset applies to only the first key */
offset = 0;
}
return (res);
}
static inline int
get_wc_index(struct sort_list_item *sli, size_t level)
{
const struct key_value *kv;
const struct bwstring *bws;
kv = get_key_from_keys_array(&sli->ka, 0);
bws = kv->k;
if ((BWSLEN(bws) > level))
return (unsigned char) BWS_GET(bws,level);
return (-1);
}
/*
* Set value of a key in the keys set
*/
void
set_key_on_keys_array(struct keys_array *ka, struct bwstring *s, size_t ind)
{
if (ka && keys_num > ind) {
struct key_value *kv;
kv = get_key_from_keys_array(ka, ind);
if (kv->k && kv->k != s)
bwsfree(kv->k);
kv->k = s;
}
}
/*
* Clean data of keys array
*/
void
clean_keys_array(const struct bwstring *s, struct keys_array *ka)
{
if (ka) {
for (size_t i = 0; i < keys_num; ++i) {
const struct key_value *kv;
kv = get_key_from_keys_array(ka, i);
if (kv->k && kv->k != s)
bwsfree(kv->k);
}
memset(ka, 0, keys_array_size());
}
}
size_t
sort_list_item_size(struct sort_list_item *si)
{
size_t ret = 0;
if (si) {
ret = sizeof(struct sort_list_item) + keys_array_size();
if (si->str)
ret += bws_memsize(si->str);
for (size_t i = 0; i < keys_num; ++i) {
const struct key_value *kv;
kv = get_key_from_keys_array(&si->ka, i);
if (kv->k != si->str)
ret += bws_memsize(kv->k);
}
}
return (ret);
}
