Ctrl-Space kills zsh

Ctrl-Space kills zsh

[Aki Vehtari]

Pressing Ctrl-Space which sends '^@', kills zsh.

This problem has been in versions 2.6* and is still in 3.01
The problem appears only in terminals that processes the
Ctrl-Space and send '^@' to shell. For example some xterm
implementations don't send anything to shell when Ctrl-Space
is pressed and this problem is not appearing there (but there you
have problem of not being able to use Ctrl-Space for anything).

Is there something wrong with handling 'null'-character ('^@')
in zsh?  (Or is there some setting that I haven't noticed?)


	Aki

Re: Ctrl-Space kills zsh

[Vincent Lefevre]

Aki Vehtari writes:
> Pressing Ctrl-Space which sends '^@', kills zsh.

I've never had any problem with '^@' (but I've rebinded it to
list-choices).

-- 
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Re: Ctrl-Space kills zsh

[Philip Kizer]

Vincent.Lefevre@ens-lyon.fr (Vincent Lefevre) wrote:
>Aki Vehtari writes:
>> Pressing Ctrl-Space which sends '^@', kills zsh.
>
>I've never had any problem with '^@' (but I've rebinded it to
>list-choices).

Likewise, no problems on any OS I use...plus I have it rebound too:
  bindkey -s '\000' '\\ '
so I don't have to go edit a whole line to surround it with quotes if I
want a space without separating to a new argument.


____________________________________________________________ Philip Kizer ___
Texas A&M CIS Operating Systems Group, Unix ( 409.862.4120 ) pckizer@tamu.edu

Re: Ctrl-Space bindings (was: kills zsh)

[Bart Schaefer]

On Nov 21, 10:29am, Philip Kizer wrote:
} Subject: Re: Ctrl-Space kills zsh
}
}   bindkey -s '\000' '\\ '
} so I don't have to go edit a whole line to surround it with quotes if I
} want a space without separating to a new argument.

Although the above binding is useful, don't forget that there are default
bindings for quote-line (ESC ') and quote-region (ESC ").

Other useful bindings, which work only if ctrl-space is still bound to
set-mark-command:

# Quote-arguments -- wraps everything from the cursor back to the start
# of the first argument in quotes, then inserts a space and sets mark
# so that a subsequent call to quote-region quotes the next part.
bindkey -s '^X"' '^@^A\ef\e" ^@'

# Quote-region-and-mark -- quote region, then insert space and mark for
# subsequent calls to quote-region-and-mark.
bindkey -s "^X'" '\e" ^@'

-- 
Bart Schaefer                             Brass Lantern Enterprises
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Re: Ctrl-Space bindings (was: kills zsh)

[Philip Kizer]

"Bart Schaefer" <schaefer@candle.brasslantern.com> wrote:
># Quote-arguments -- wraps everything from the cursor back to the start
># of the first argument in quotes, then inserts a space and sets mark
># so that a subsequent call to quote-region quotes the next part.
>bindkey -s '^X"' '^@^A\ef\e" ^@'

That could be pretty useful...I don't see that in the examples...let's add
that, commented like the others, to the StartupFiles/zshrc...


-p

____________________________________________________________ Philip Kizer ___
Texas A&M CIS Operating Systems Group, Unix ( 409.862.4120 ) pckizer@tamu.edu

Re: Ctrl-Space kills zsh

[Aki Vehtari]

Thanks for all the answers.

Problem wasn't in zsh, but in color_xterm and when I knew what to
search, I could fix it by using combination of the
XTerm*VT100.Translations and the bindkey:

 I added to .Xdefaults:
  XTerm*VT100.Translations: #override Ctrl<KeyPress>space: string(^x^m)
 and to .zshrc:
  bindkey '^x^m' set-mark-command


	Aki

Re: Ctrl-Space kills zsh

[Geoff Wing]

Aki Vehtari wrote:
:Pressing Ctrl-Space which sends '^@', kills zsh.

Wow, this is a bug I told pf about in the first zsh version 2 about 4 or 5
years ago, which he then fixed.
Isn't it good to see all the old bugs reoccuring :-)

:This problem has been in versions 2.6* and is still in 3.01
:The problem appears only in terminals that processes the
:Ctrl-Space and send '^@' to shell. For example some xterm
:implementations don't send anything to shell when Ctrl-Space
:is pressed and this problem is not appearing there (but there you
:have problem of not being able to use Ctrl-Space for anything).

My xterm requires CTRL-SPACE pressed twice to send it once.

:Is there something wrong with handling 'null'-character ('^@')
:in zsh?  (Or is there some setting that I haven't noticed?)

I can't make this happen.  Can someone who can please send a backtrace.
-- 
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