Backspace does not erase in stdout

[Nobody]

On Mon, 05 Dec 2011 16:23:55 +0000, Grant Edwards wrote:

>> Emitting "\b \b" is one very common way to do a destructive backspace.
>> Inelegant? Perhaps, but a common inelegance.
> 
> That's pretty much the only way I've seen it done for the past 25
> years.

... before which, it was BS-DEL-BS.

DEL being 127 means that it punches through all of the holes on the paper
tape, causing whatever was there previously to be replaced with a DEL
character. BS-SPC-BS would only punch through one of the holes.