directory stack expansion

directory stack expansion

[N.J. Thomas]

Given the following directory stack:

    $ dirs -v
    0       /etc
    1       /tmp
    3       /home/foo

I often do things like "cd ~+3", "mkdir ~+1/foo", etc.

Often times, I want to be able to expand the directory. The reason for
this is that the directory stack changes often, and "mkdir ~+1/foo"
makes sense when "~+1" has the value of /tmp, but not much sense when it
is /etc or whatever. If I recall a command from the history, "cd ~+3"
might have an entirely different meaning depending on the value of the
stack.

Right now, the only way I can do this is by typing this at the prompt:

    $ cd `echo ~+1`

and then hitting tab after the second backtick. Is there a way to get
Zsh to get to expand without the backticks?

thanks,
Thomas

-- 
N.J. Thomas
njt@ayvali.org
Etiamsi occiderit me, in ipso sperabo

Re: directory stack expansion

[Chris Johnson]

N.J. Thomas sent me the following 0.8K:

> Right now, the only way I can do this is by typing this at the prompt:
> 
>     $ cd `echo ~+1`
> 
> and then hitting tab after the second backtick. Is there a way to get
> Zsh to get to expand without the backticks?

The zshzle man page lists all the builtin widgets that zsh provides, and
the one that seems to do the trick for me is:

    expand-word (^X*) (unbound) (unbound)
        Attempt shell expansion on the current word.

Control-X followed by * (Shift-8) is bound in the emacs keymap.  That's
not exactly easy to type, but you should be able to map it to something
easier:

   bindkey '^X^D' expand-word

-- 
Chris Johnson
cjohnson@cs.utk.edu
http://www.cs.utk.edu/~cjohnson

Re: directory stack expansion

[N.J. Thomas]

* Chris Johnson <cjohnson@cs.utk.edu> [2007-01-18 18:15:06 -0500]:
> > $ cd `echo ~+1`
> > Is there a way to get Zsh to get to expand without the backticks?
> 
>     expand-word (^X*) (unbound) (unbound)
>         Attempt shell expansion on the current word.

Excellent, that's exactly what I was looking for. Much thanks.

Thomas

-- 
N.J. Thomas
njt@ayvali.org
Etiamsi occiderit me, in ipso sperabo