static void add_fulltext(DB_txn *const txn, uint64_t const metaFileID, strarg_t const str, size_t const len) {
if(0 == len) return;
assert(str);
int rc;
sqlite3_tokenizer_module const *fts = NULL;
sqlite3_tokenizer *tokenizer = NULL;
fts_get(&fts, &tokenizer);
sqlite3_tokenizer_cursor *tcur = NULL;
rc = fts->xOpen(tokenizer, str, len, &tcur);
assert(SQLITE_OK == rc);
DB_cursor *cursor = NULL;
rc = db_cursor_open(txn, &cursor);
assert(rc >= 0);
for(;;) {
strarg_t token;
int tlen;
int tpos; // TODO
int ignored1, ignored2;
rc = fts->xNext(tcur, &token, &tlen, &ignored1, &ignored2, &tpos);
if(SQLITE_OK != rc) break;
assert('\0' == token[tlen]); // Assumption
DB_val token_val[1];
SLNTermMetaFileIDAndPositionKeyPack(token_val, txn, token, metaFileID, 0);
// TODO: Record tpos. Requires changes to SLNFulltextFilter so that each document only gets returned once, no matter how many times the token appears within it.
DB_val null = { 0, NULL };
rc = db_cursor_put(cursor, token_val, &null, DB_NOOVERWRITE_FAST);
assert(rc >= 0 || DB_KEYEXIST == rc);
}
db_cursor_close(cursor); cursor = NULL;
fts->xClose(tcur); tcur = NULL;
}
int db_put(DB_txn *const txn, DB_val *const key, DB_val *const data, unsigned const flags) {
DB_cursor *cursor;
int rc = db_txn_cursor(txn, &cursor);
if(rc < 0) return rc;
return db_cursor_put(cursor, key, data, flags);
}