GoatError goat_message_get_tag_value(
const GoatMessage *message, const char *key, char *value, size_t *size
) {
if (NULL == message) return EINVAL;
if (NULL == key) return EINVAL;
if (NULL == value) return EINVAL;
if (NULL == size) return EINVAL;
const MessageTags *tags = message->m_tags;
if (NULL == tags || 0 == strlen(tags->m_bytes)) return GOAT_E_NOTAG;
const char *p, *v, *end;
p = _find_tag(tags->m_bytes, key);
if (NULL == p) return GOAT_E_NOTAG;
v = _find_value(p);
if (NULL == v) return GOAT_E_NOTAGVAL;
end = _next_tag(v);
if ('\0' != *end) end--; // account for separator
char unescaped[GOAT_MESSAGE_MAX_TAGS];
size_t unescaped_len = sizeof(unescaped);
_unescape_value(v, unescaped, &unescaped_len);
if (*size <= unescaped_len) return EOVERFLOW;
memset(value, 0, *size);
strncpy(value, unescaped, unescaped_len);
*size = unescaped_len;
return 0;
}
int trie_has_node (trie_node_t *trie, const char* word)
{
while (*word) {
trie_node_t *found = _find_value (trie->children, *(word));
if (found) {
trie = found;
} else {
return 0;
}
*(word++);
}
return 1;
}
int trie_add_word (trie_node_t *trie, const char* word)
{
while (*word) {
trie_node_t *found = _find_value (trie->children, *(word));
if (found) {
trie = found;
} else {
trie->children[NORMALIZE_(*(word))] = trie_node_init ();
trie->children[NORMALIZE_(*(word))]->value = *(word);
trie = trie->children[NORMALIZE_(*word)];
}
*(word++);
}
return 1;
}