n_str = term_utf8_decode(&t->utf8, &str, buf[i]);
for (j = 0; j < n_str; ++j) {
type = term_parser_feed(t->parser, &seq, str[j]);
n_str = term_utf8_decode(&t->utf8, &str, buf[i]);
for (j = 0; j < n_str; ++j) {
type = term_parser_feed(t->parser, &seq, str[j]);