ustrfroma(s, buf, len, charset);
len = (3 * len) / 2 + 1; /* this guarantees a strict increase */
} while (ustrlen(buf) >= len-1);
ustrfroma(s, buf, len, charset);
len = (3 * len) / 2 + 1; /* this guarantees a strict increase */
} while (ustrlen(buf) >= len-1);