Most of the control characters for ASCII have been ignored<p><a href="https://en.wikipedia.org/wiki/C0_and_C1_control_codes" rel="nofollow">https://en.wikipedia.org/wiki/C0_and_C1_control_codes</a><p>Just as the ANSI terminal codes other than the ones supported by the VT100 are mainly unimplemented<p><a href="https://en.wikipedia.org/wiki/ANSI_escape_code" rel="nofollow">https://en.wikipedia.org/wiki/ANSI_escape_code</a>
Stumbled across this today, here's a previous discussion from several years ago <a href="https://news.ycombinator.com/item?id=7474600" rel="nofollow">https://news.ycombinator.com/item?id=7474600</a>.