Re: Confusion about Undo keybinding

[Barry Margolin <barmar@alum.mit.edu>]

In article <mailman.4403.1455218497.843.help-gnu-emacs@gnu.org>,
 Kevin Havener <havenerk@gmail.com> wrote:

> According to the tutorial and other places, undo is bound by default to 
> C-/, C-_, and C-x u.  However in my newly installed emacs 24.5, C-/ is 
> bound to DEL (backspace).  I don't think I have any .emacs type file 
> overriding the defaults, so is this wrong or is the documentation wrong?
> 
> Wait just a minute.  C-/ is bound to undo in graphical mode and in xterm 
> (-nw) mode.  C-/ is bound to DEL in my linux virtual consoles.  How is 
> this possible?

In terminal mode, only ASCII characters can be used, and there is no 
ASCII C-/ character. When you type C-/ it sends the DEL character, I 
think because this is what Teletype terminals in the 70's did (or maybe 
it's what DEC VTxxx terminals did).

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***