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Re: Add ^C'd commands to history?
- X-seq: zsh-users 5587
 
- From: "Bart Schaefer" <schaefer@xxxxxxxxxxxxxxxx>
 
- To: zsh-users@xxxxxxxxxx
 
- Subject: Re: Add ^C'd commands to history?
 
- Date: Tue, 17 Dec 2002 03:21:03 +0000
 
- In-reply-to: <20021217022008.GA10031@xxxxxxxxxxxxxxxx>
 
- Mailing-list: contact zsh-users-help@xxxxxxxxxx; run by ezmlm
 
- References: <20021217022008.GA10031@xxxxxxxxxxxxxxxx>
 
On Dec 16,  8:20pm, Jeremy M. Dolan wrote:
} 
} Many times I type out a long command, maybe iptables or something,
} then realize I need to do $X first, so I have to ^C the command.
As Stephen Rueger has already pointed out, this is exactly what push-line
is for.  (Actually I prefer push-line-or-edit for the case of multi-line
buffers.)
The difficulty with binding anything like this to ^C is that (normally)
the tty driver interprets ^C before zsh ever sees it, and sends an INT
signal.  Zsh doesn't know where the INT signal came from, and the ZLE
module can't presume to handle non-keyboard interrupts, so in order to
have the line editor do something on ^C you have to use the stty command
to disable the driver interpretation of that keystroke.  That can be a
problem if you also want to use it to send an actual interrupt.
So my recommendation is to get used to typing something else when you
want a line stored in the history, and use ^C for what it was meant for.
However, if you really want to hang yourself, here is the rope:
    function push-to-history {
	print -s "$BUFFER"
	zle send-break
    }
    zle -N push-to-history
    bindkey '^C' push-to-history
    export STTY='intr ^C'
    ttyctl -u
    stty intr ''
    ttyctl -f
-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com
Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net   
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