From: John Dlugosz (JDlugosz@tradestation.com)
Date: Wed Jul 07 2010 - 11:25:54 CDT
In addition to what's been said (I don't know what context you are coming from), it might be for some extra chars that are not part of ASCII. See for example <http://en.wikipedia.org/wiki/CP437>, where they are (were) used for ←, ∟, and ↔. On character-based displays, it was handy to have special chars for box drawing borders and such.
> -----Original Message-----
> From: unicode-bounce@unicode.org [mailto:unicode-bounce@unicode.org] On
> Behalf Of abysta@yandex.ru
> Sent: Wednesday, July 07, 2010 9:08 AM
> To: unicode@unicode.org
> Subject: 001B, 001D, 001C
>
> Hello!
>
> 001B, 001D, 001C are present in some keyboard layouts. What are these
> characters used for?
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