What extended ASCII character set uses 0x9D?

Piet van Oostrum piet-l at vanoostrum.org
Fri Aug 18 17:04:49 EDT 2017


Marko Rauhamaa <marko at pacujo.net> writes:

> Chris Angelico <rosuav at gmail.com>:
>
>> Ohh. We have no evidence that uppercasing is going on here, and a
>> naive ASCII upper-casing wouldn't produce 0x81 either - if it did, it
>> would also convert 0x21 ("!") into 0x01 (SOH, a control character). So
>> this one's still a mystery.
>
> BTW, I was reading up on the history of ASCII control characters. Quite
> fascinating.
>
> For example, have you ever wondered why DEL is the odd control character
> out at the code point 127? The reason turns out to be paper punch tape.
> By backstepping and punching a DEL over the previous ASCII character you
> can "rub out" the character.
>
Sure, I have done that many times. Years ago.
-- 
Piet van Oostrum <piet-l at vanoostrum.org>
WWW: http://piet.vanoostrum.org/
PGP key: [8DAE142BE17999C4]



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