Re: [PATCH] env completion: add missing explanation of --unset option, fixes alignment of completed arguments

[Ingmar Vanhassel <ingmar@exherbo.org>]

Excerpts from Benjamin R. Haskell's message of Thu Nov 12 21:52:50 +0100 2009:
> On Thu, 12 Nov 2009, Ingmar Vanhassel wrote:
> 
> > ---
> >  Completion/Unix/Command/_env |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > I was getting a few patch series ready to send, but I guess I can fire this one
> > off already, it probably fixes your issue.
> > 
> > What I've not figured out, is how to make 'env FOO=bar quux <TAB>' complete
> > options to 'quux'. I guess that'll take someone with more experience than me.
> 
> Took a hint from _xargs...  Attached patch incorporates:

Thanks :)

> 1. my fix to allow multiple '-u/--unset=' args
> 2. Ingmar's documentation fix
> 3. the fix to complete arguments to the command passed to 'env'

This doesn't fix 'env FOO=bar quux <TAB>' here.

> Does not include the '(--unset= -u)' Ingmar had prepended to the '-u' 
> line.  (I think that would explicitly prevent multiple -u/--unset args.)
> 
> Best,
> Ben
> Index: Completion/Unix/Command/_env
> ===================================================================
> RCS file: /cvsroot/zsh/zsh/Completion/Unix/Command/_env,v
> retrieving revision 1.1
> diff -u -r1.1 _env
> --- Completion/Unix/Command/_env        13 Apr 2006 02:46:50 -0000        1.1
> +++ Completion/Unix/Command/_env        12 Nov 2009 20:47:25 -0000
> @@ -3,9 +3,10 @@
>  if _pick_variant gnu=Free\ Soft unix --version; then
>    _arguments \
>      '(--ignore-environment -i)'{-i,--ignore-environment}'[start with empty
> environment]' \
> -    {-u,--unset=}':env var to remove:compadd ${(k)parameters[(R)*export*]}' \
> +    '*'{-u,--unset=}'[remove variable from the environment]:env var to
> remove:compadd ${(k)parameters[(R)*export*]}' \
>      '--help[help]' \
>      '--version[version]' \
> +    '(-):command: _command_names -e' \
>      '*::arguments: _normal'
>  else
>    _precommand
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