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/* ISC license. */
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/avltree.h>
#include <skalibs/bigkv.h>
static void *bigkv_dtok (uint32_t d, void *p)
{
bigkv_t *b = p ;
return b->storage.s + genalloc_s(bigkv_node_t, &b->nodes)[d].k ;
}
static int bigkv_cmp (void const *a, void const *b, void *p)
{
(void)p ;
return strcmp((char const *)a, (char const *)b) ;
}
int bigkv_init (bigkv_t *b, char const *const *argv, char delim, char const *prefix, char const *stop, uint32_t options)
{
size_t prefixlen = prefix ? strlen(prefix) : 0 ;
avltree_init(&b->map, 3, 3, 8, &bigkv_dtok, &bigkv_cmp, b) ;
for (; *argv && !(stop && !strcmp(*argv, stop)) ; argv++)
{
bigkv_node_t node = { .k = b->storage.len } ;
uint32_t d ;
char const *s = *argv ;
char *p ;
if (prefixlen)
{
if (!strncmp(s, prefix, prefixlen)) break ;
s += prefixlen ;
}
if (avltree_search(&b->map, s, &d))
{
if (options & BIGKV_OPTIONS_NODUP) goto invalid ;
else avltree_delete(&b->map, s) ;
}
if (!stralloc_cats(&b->storage, s) || !stralloc_0(&b->storage)) goto err ;
p = strchr(s, delim) ;
if (p)
{
node.v = node.k + (p - s) + 1 ;
b->storage.s[node.k + (p - s)] = 0 ;
}
else node.v = b->storage.len - 1 ;
d = genalloc_len(bigkv_node_t, &b->nodes) ;
if (!genalloc_append(bigkv_node_t, &b->nodes, &node)) goto err ;
if (!avltree_insert(&b->map, d)) goto err ;
}
return 1 ;
invalid:
errno = EINVAL ;
err:
bigkv_free(b) ;
return 0 ;
}
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