Re: How to do completion with read?

Re: How to do completion with read?

[Sven Wischnowsky]

Paul Lew wrote:

> >>>>> "Bart" == Bart Schaefer <schaefer@candle.brasslantern.com> writes:
> 
>     Bart> Here's my "zleread" function again.  Insert some commands to
>     Bart> fiddle with the completion context just before the call to
>     Bart> "vared" and you can get it to complete any way you like.
> 
> Thanks for the script.  I'm guessing what you mean by fiddle with the
> completion context is to create a temporary directory and create dummy
> files for completion purpose?  So there is no mechanism to pass
> zcompctl arguments to vared?  Seems vared only complete filename?

Actually, `vared' completes its line in the same way a command line is 
completed. I.e. it uses all the `compctl' definitions you have
(including the one for `-C' for the first word on the line).

What Bart probably meant was that with the new completion system in
version 3.1.6 you can set the parameter `compcontext' in such a
function to specify how words in the line read should be completed.

Since you seem to use an older version: if your version already
supports the `-T' flag to `compctl' (which is quite old), you can use
that to say what should be completed in such a function, e.g.:

  compctl -Tk '(foo bar baz)'
  vared line
  compctl -T ...  # reset to standard value

Resetting it should be possible by first storing the output of
`compctl -LT' and later `eval'ing it (be careful if that contains
quotes).

If you are using a 3.1.6, you'll have to add a `-tn' to the first
`compctl -T'. But then... if you are using 3.1.6, you probably should
think about moving to the function based completion system anyway.

Bye
 Sven


--
Sven Wischnowsky                         wischnow@informatik.hu-berlin.de

How to do completion with read?

[Paul Lew]

Is there a way to use completion mechanism when prompt user for input
in zsh function/scripts?  For example,

echo -n "Enter choice: "
read -C '-k "(orange apple banana)"' choice

The example about use imaginary option '-C' which tell zsh to pass the
next argument as compctl argument.

Any help will be appreciated...

Re: How to do completion with read?

[Francis GALIEGUE]

Paul Lew <paullew@cisco.com> writes:

> Is there a way to use completion mechanism when prompt user for input
> in zsh function/scripts?  For example,
> 
> echo -n "Enter choice: "
> read -C '-k "(orange apple banana)"' choice
> 
> The example about use imaginary option '-C' which tell zsh to pass the
> next argument as compctl argument.
> 
> Any help will be appreciated...
> 

You can use select for this, although it does not do completion.

-- 
fg

# rm *;o
o: command not found

Re: How to do completion with read?

[Bart Schaefer]

On Nov 3,  8:52am, Paul Lew wrote:
} Subject: How to do completion with read?
}
} Is there a way to use completion mechanism when prompt user for input
} in zsh function/scripts?

Here's my "zleread" function again.  Insert some commands to fiddle with
the completion context just before the call to "vared" and you can get it
to complete any way you like.

--- 8< --- cut here --- 8< ---
emulate -L zsh
local input opt ropt n=0
ropt=()
while getopts :AEe opt
do
    case $opt in
    [?]) read $*; return $?;;
    +*) break;;
    *) ropt=($ropt -$opt); ((++n));
    esac
done
if [[ -t 0 ]]
then
    shift $n
    vared -hp "${${(M)1%%\?*}#\?}" input
    print -r $input | read $ropt ${1%%\?*} $*[2,-1]
    return $?
fi
read $*
--- 8< --- cut here --- 8< ---

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Re: How to do completion with read?

[Paul Lew]

>>>>> "Bart" == Bart Schaefer <schaefer@candle.brasslantern.com> writes:

    Bart> Here's my "zleread" function again.  Insert some commands to
    Bart> fiddle with the completion context just before the call to
    Bart> "vared" and you can get it to complete any way you like.

Thanks for the script.  I'm guessing what you mean by fiddle with the
completion context is to create a temporary directory and create dummy
files for completion purpose?  So there is no mechanism to pass
zcompctl arguments to vared?  Seems vared only complete filename?

					-- Paul  11/03/99  10:18 AM --