bindctl command history

[Jeremy C. Reed]

On Thu, 17 May 2012, Spain, Dr. Jeffry A. wrote:

> >>From yesterday's conference call I understand that bindctl is supposed to support command history using the arrow keys. Here's what I see instead:
> 
> root at ns0:~# bindctl
> ["login success "] login as root
> > config show Boss
> Boss/components/                named_set       (default)
> > ^[[A
> Error!  Module name format error: the character of name can only be '0-9a-zA-Z_'
> > ^[[B
> Error!  Module name format error: the character of name can only be '0-9a-zA-Z_'
> > 
> 
> Using the up arrow key generates "^[[A" and the down arrow "^[[B" instead of doing command history. There is another tedious problem with correcting typos: pressing the Backspace key generates "^H" instead of deleting the character to the left. The right and left arrows generate "^[[C" and "^[[D", and the Delete key generates "^[[3~". The only way I can delete the character to the left is <Ctrl>-<Backspace>. These keys all work as expected with the bash shell outside of bindctl.
> 
> Thanks for your advice about this. Jeff.


This is provided my the python readline module.  Some installations of 
python do not include it. It is included by python3.1 by default; a 
package maintainer may choose to provide a separate package for it. You 
may need to install the readline line editing support for your python3 
package.

The related ticket is
http://bind10.isc.org/ticket/677

Yes we need to clearly document this.