for (i = 0; i < vln; i++) {
            /* Get line */
            ptr = ref_array_get(vo->raw_lines, i, NULL);
            if (ptr) {
                /* Get its length */
                ref_array_get(vo->raw_lengths, i, (void *)&len);
                if (error) {
                    TRACE_ERROR_NUMBER("Failed to add string", error);
                    return error;
                }
                part = *((char **)(ptr));