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Re: Patch: operate-and-get-next
- To: Keith Seitz <keiths at cygnus dot com>
- Subject: Re: Patch: operate-and-get-next
- From: "John R. Moore" <jmoore at redhat dot com>
- Date: Fri, 28 Sep 2001 09:54:51 -0700 (PDT)
- cc: Tom Tromey <tromey at redhat dot com>, Insight List <insight at sourceware dot cygnus dot com>
Keith, Tom,
I've used this feature in tcsh (using emacs syntax) and one
uses ESC-p and ESC-n to get at the historical command. I've
wondered how to do it in bash, but never bothered to look.
Now that I'm enlighten'd, I might use bash more often. :-)
BTW, there is C-n to go up the history (if you go too many C-p's)
Don't forget to implement the C-n as well!!
Cheers,
John Moore
-------------------------------
On Fri, 28 Sep 2001, Keith Seitz wrote:
> On 28 Sep 2001, Tom Tromey wrote:
>
> > One of my favorite features in Bash is called operate-and-get-next.
> > This is a readline function bound to Control-o. It lets you easily
> > repeat a sequence of commands from history.
>
> Nope, sorry. I cannot accept this. This would be a new feature, and we
> cannot implement new features until the sun goes super-nova. Sorry.
>
> > What you do is use C-p to find the first command in a sequence. You
> > use C-o to execute it (like pressing Enter), and when the next prompt
> > comes up, the next command from history is already inserted for you.
>
> This is too cool. I never even knew this existed! :-)
>
> > I still use the Insight console quite a bit, and I really miss this
> > feature. So today I implemented it. The patch is appended. Is this
> > ok to commit?
>
> I use the console quite a bit, too, but I do it 75% of the time because it
> helps elide problems with gdb and insight getting out of sync.(Try up/down
> in the console window. It doesn't work properly.)
>
> I have one very little nit...
>
> > #-------------------------------------------------------------------
> > +# METHOD: _operate_and_get_next - Invoke the current command and,
> > +# if this command came from the history, arrange for the
> > +# next history command to be inserted once this command
> > +# is finished.
> > +# ------------------------------------------------------------------
>
> Could you change this to the "new" comment format? I know, this isn't
> documented anywhere... I started doing this in regwin.it[hb] when I
> tweaked the register window. I'm gonna try to stay consistent in its use
> for new work. This'll help me track what has been touched recently and
> what is still "legacy" code.
>
> Something like:
>
> # ------------------------------------------------------------------
> # NAME: ConsoleWin::_operate_and_get_next
> # DESCRIPTION: Invokes the current command and, if this
> # command came from the history, arrange for
> # the next history command to be inserted once this
> # command is finished.
> #
> # ARGUMENTS: None
> # RETURNS: Nothing
> # ------------------------------------------------------------------
>
> Otherwise, APPROVED! :-) (Wow, a new feature. Where's my champagne?)
>
> Now all we need to do is get ^R working...
> Keith
>
>
>
>