CLI Tricks

CLI Tricks

[zzapper]

Hi Ya

A) I use
bindkey -v (vi emulation)

is there any where to get it start in on-insert mode (ie command mode)

B)

I've read somewhere that I can repeat the previous keyword when typing
a command

eg

> cp verylongfilename (control metachar)

and you get

> cp verylongfilename  verylongfilename

But I couldn't get it to work.


zzapper
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Re: CLI Tricks

[zzapper]

>
>is there any where to get it start in non-insert mode (ie command mode)
>
I meant NON-INSERT

zzapper
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Re: CLI Tricks

[Bart Schaefer]

[zzapper seems to be unusually good at running afoul of verizon's mail
filtering.  I've failed to receive the _first_ message in nearly every
thread he's started.  The Sunsite staff tells me they think it's because
their servers get temporarily listed by SpamCop, but why would zzapper
in particular be the one to always hit them during SpamCop blackouts?]

On Dec 12, 11:38am, zzapper wrote:
} 
} I meant NON-INSERT

[With regard to starting in vi command mode]

The short answer is, no, you can't, not without a bit of programming.

Vi mode works by changing zsh's "main" keymap to be the "viinsert" map
(normally it's the "emacs" map).  Command mode switches temporarily to
the "vicmd" keymap, but the keys in that map that would return you to
insert mode are all programmed to return you to the "main" map, not to
the "viinsert" map.  This is to allow invoking vicmd from a bindkey in
the emacs map without becoming trapped in vi mode.

So you could force zsh to start in vi command mode by making vicmd be
the main map, but then you can never get back to insert mode.

The way to program around this is to first copy the vicmd keymap:

    bindey -N vistartup vicmd

Next, create a widget function that restores "viinsert" as the main
keymap, and then calls through to a builtin widget.  You're going to
have to bind this to every key that might change to insert mode, so it
helps if it's generic:

    reset-vi-and-call () {
	local widget="${WIDGET#reset-}"
	bindkey -v
	zle $widget
    }

Now bind it to ALL the insert widgets in the vistartup keymap.  I'm
only going to show how you do this for "i" and "a", because it's very
monotonous:

    zle -N reset-vi-insert reset-vi-and-call
    bindkey -M vistartup i reset-vi-insert

    zle -N reset-vi-add-next reset-vi-and-call
    bindkey -M vistartup a reset-vi-add-next

Finally, set up your precmd function to force the main keymap to be
the vistartup keymap, because you have to reinitialize this every time
zsh re-enters ZLE:

    precmd () {
	# Any other stuff you already have in precmd stays here
	bindkey -A vistartup main
    }

That's all.  If you (or anyone) actually codes the rest of this up and
tests it, send the result to zsh-workers so we can consider including
it in the zsh distribution.

Re: CLI Tricks

[zzapper]

On Fri, 12 Dec 2003 16:42:46 +0000, Bart Schaefer
<schaefer@brasslantern.com> wrote:

>[zzapper seems to be unusually good at running afoul of verizon's mail
>filtering.  I've failed to receive the _first_ message in nearly every
>thread he's started.  The Sunsite staff tells me they think it's because
>their servers get temporarily listed by SpamCop, but why would zzapper
>in particular be the one to always hit them during SpamCop blackouts?]
>
>On Dec 12, 11:38am, zzapper wrote:
>} 
>} I meant NON-INSERT
>
>[With regard to starting in vi command mode]
>
>The short answer is, no, you can't, not without a bit of programming.
>
>Vi mode works by changing zsh's "main" keymap to be the "viinsert" map
>(normally it's the "emacs" map).  Command mode switches temporarily to
>the "vicmd" keymap, but the keys in that map that would return you to
>insert mode are all programmed to return you to the "main" map, not to
>the "viinsert" map.  This is to allow invoking vicmd from a bindkey in
>the emacs map without becoming trapped in vi mode.
>
>So you could force zsh to start in vi command mode by making vicmd be
>the main map, but then you can never get back to insert mode.
>
>The way to program around this is to first copy the vicmd keymap:
>
>    bindey -N vistartup vicmd
>
>Next, create a widget function that restores "viinsert" as the main
>keymap, and then calls through to a builtin widget.  You're going to
>have to bind this to every key that might change to insert mode, so it
>helps if it's generic:
>
>    reset-vi-and-call () {
>	local widget="${WIDGET#reset-}"
>	bindkey -v
>	zle $widget
>    }
>
>Now bind it to ALL the insert widgets in the vistartup keymap.  I'm
>only going to show how you do this for "i" and "a", because it's very
>monotonous:
>
>    zle -N reset-vi-insert reset-vi-and-call
>    bindkey -M vistartup i reset-vi-insert
>
>    zle -N reset-vi-add-next reset-vi-and-call
>    bindkey -M vistartup a reset-vi-add-next
>
>Finally, set up your precmd function to force the main keymap to be
>the vistartup keymap, because you have to reinitialize this every time
>zsh re-enters ZLE:
>
>    precmd () {
>	# Any other stuff you already have in precmd stays here
>	bindkey -A vistartup main
>    }
>
>That's all.  If you (or anyone) actually codes the rest of this up and
>tests it, send the result to zsh-workers so we can consider including
>it in the zsh distribution.
Thankx but ARGGH!!

Maybe this is for somebody a lot higher up the learning curve.

BTW I expect vi to start in command mode because that's how real vi(m)
starts.

zzapper
--

vim -c ":%s/^/WhfgTNabgureRIvzSUnpxre/|:%s/[R-T]/ /Ig|:normal ggVGg?"

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Re: CLI Tricks

[Peter Stephenson]

Bart Schaefer wrote:
> Now bind it to ALL the insert widgets in the vistartup keymap.
>...
> That's all.  If you (or anyone) actually codes the rest of this up and
> tests it, send the result to zsh-workers so we can consider including
> it in the zsh distribution.

Hmm... I'm not sure about this.

We discussed simply being able to bind `main' to vicmd and tweaking the
way viins and vicmd were hooked together.  It was easy to implement but
it wasn't popular for some technical reason I've forgotten.

The other way of doing it is to add a hook widget to zle to run every
time it starts.  That's not too hard, either, but nobody's got around to
doing it.

pws


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Re: CLI Tricks

[Pavol Juhas]

On Fri, Dec 12, 2003 at 11:38:34AM +0000, zzapper wrote:
> >
> >is there any where to get it start in non-insert mode (ie command mode)
> >
> I meant NON-INSERT

You can do

# my-cr() pushes \r\e to zle buffer as if typed
my-cr() { zle -U $'\r\e' }
# define my-cr as widget function
zle -N my-cr my-cr
# insert mode maps
bindkey '^m' my-cr
bindkey '^j' my-cr
# command mode maps
bindeky -a '^m' my-cr
bindeky -a '^j' my-cr

which remaps <cr> to <cr><esc>.  The very first input would be
in insert mode, but maybe you can live with that.  ;-)

Pavol

Re: CLI Tricks

[Dominik Vogt]

On Fri, Dec 12, 2003 at 11:32:39AM +0000, zzapper wrote:
> B)
> 
> I've read somewhere that I can repeat the previous keyword when typing
> a command
> 
> eg
> 
> > cp verylongfilename (control metachar)
> 
> and you get
> 
> > cp verylongfilename  verylongfilename

You want the copy-prev-word function which is by default bound to
Esc Ctrl-_

Ciao

Dominik ^_^  ^_^

Re: CLI Tricks

[zzapper]

On Fri, 12 Dec 2003 12:48:09 +0100, Dominik Vogt <dominik.vogt@gmx.de>
wrote:


>> 
>> > cp verylongfilename  verylongfilename
>
>You want the copy-prev-word function which is by default bound to
>Esc Ctrl-_

Is it disabled if you use bindkey -v

Cos I cant get it to work

EscControl_

It works with bindkey -e

But then on my keyboard me its EscCTRLShift_ which rather negates its
usefulness!!!

zzapper
--

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Re: CLI Tricks

[Thomas Köhler]

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Hi,

zzapper wrote:
> On Fri, 12 Dec 2003 12:48:09 +0100, Dominik Vogt <dominik.vogt@gmx.de>
> wrote:
> 
> >> > cp verylongfilename  verylongfilename
> >
> >You want the copy-prev-word function which is by default bound to
> >Esc Ctrl-_
> 
> Is it disabled if you use bindkey -v
> 
> Cos I cant get it to work

Sure. man zshzle and search for copy-prev-word - it says it's
unbound for vi insert or command modes :)

> EscControl_
> 
> It works with bindkey -e
> 
> But then on my keyboard me its EscCTRLShift_ which rather negates its
> usefulness!!!

bindkey -M viins '^O' copy-prev-word
And use ctrl-o afterwards. Or use another key which suits you
better.

Ciao,
Thomas

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Re: CLI Tricks

[zzapper]

On Fri, 12 Dec 2003 13:39:28 +0100, Thomas Köhler
<jean-luc@picard.franken.de> wrote:

Jean Luc

>bindkey -M viins '^O' copy-prev-word
> And use ctrl-o afterwards.
Thanx, just what the doctor ordered!

Is it possible to configure
>bindkey -v

to start up in command mode rather than insert mode?
zzapper
--

vim -c ":%s/^/WhfgTNabgureRIvzSUnpxre/|:%s/[R-T]/ /Ig|:normal ggVGg?"

http://www.vim.org/tips/tip.php?tip_id=305  Best of Vim Tips

Re: CLI Tricks

[Hisham Muhammad]

On Friday 12 December 2003 09:48, you wrote:
> On Fri, Dec 12, 2003 at 11:32:39AM +0000, zzapper wrote:
> > B)
> >
> > I've read somewhere that I can repeat the previous keyword when typing
> > a command
> >
> > eg
> >
> > > cp verylongfilename (control metachar)
> >
> > and you get
> >
> > > cp verylongfilename  verylongfilename
>
> You want the copy-prev-word function which is by default bound to
> Esc Ctrl-_

How interesting! Didn't know about that. I played a bit with it and was 
intrigued by its behavior with filenames with spaces, but then 'man zshzle' 
told me there's a copy-prev-shell-word which does the same but works with 
spaces. The manpage, however, says both are bound to the same key by default 
(a documentation bug?).

-- 
Hisham Muhammad
"...and this is the first step."

Re: CLI Tricks

[Bart Schaefer]

On Dec 12,  1:11pm, Hisham Muhammad wrote:
}
} > You want the copy-prev-word function
} 
} 'man zshzle' told me there's a copy-prev-shell-word which does the
} same but works with spaces. The manpage, however, says both are bound
} to the same key by default (a documentation bug?).

Yes, it's a doc bug; copy-prev-shell-word is a recent addition, and the
entry for it was created by cut+paste+edit of the copy-prev-word entry.

Index: Doc/Zsh/zle.yo
===================================================================
--- zle.yo	23 Sep 2003 15:27:14 -0000	1.9
+++ zle.yo	12 Dec 2003 17:07:53 -0000
@@ -1184,7 +1184,7 @@
 Duplicate the word to the left of the cursor.
 )
 tindex(copy-prev-shell-word)
-item(tt(copy-prev-shell-word) (ESC-^_) (unbound) (unbound))(
+item(tt(copy-prev-shell-word))(
 Like tt(copy-prev-word), but the word is found by using shell parsing, 
 whereas tt(copy-prev-word) looks for blanks. This makes a difference
 when the word is quoted and contains spaces.