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From: Sven Wischnowsky <wischnow@informatik.hu-berlin.de>
Date: Tue, 29 May 2001 15:08:18 +0200 (MET DST)
Message-Id: <200105291308.PAA09291@beta.informatik.hu-berlin.de>
To: zsh-workers@sunsite.dk
Subject: Re: PATCH: Re: PATCH: update-alternatives completion
In-Reply-To: <20010529083212.A31244@dman.com>

Clint Adams wrote:

> ...
> 
> update-alternatives --quiet --install /usr/bin/awk awk /usr/bin/gawk 10 \
>   --slave /usr/share/man/man1/awk.1.gz awk.1.gz /usr/share/man/man1/gawk.1.gz \
>   --slave /usr/bin/nawk nawk /usr/bin/gawk \
>   --slave /usr/share/man/man1/nawk.1.gz nawk.1.gz /usr/share/man/man1/gawk.1.gz
> 
> For each --slave, you repeat the <path> <name> <path>.

Two possibilities, then (at least).  The large one (simplified):

  while true; do
  
    case "$state" in
  
    islave)
      state=
      _arguments '1:path:(spath)' \
                 '2:name:(sname)' \
                 '3:path:(spath2)' \
                 '--slave:*::more:= ->islave' && return 0
      [[ -z $state ]] && return 1
      ;;
  
    install)
      _arguments '1:link:(link)' \
                 '2:name:(name)' \
                 '3:path:(path)' \
                 '--slave:*::more:= ->islave' && return 0
      [[ -z $state ]] && return 1
      ;;

    other states)
      ...
      ;;
  
    esac
  done

Or just (simplified, too):

  case "$state" in
  other states)
    ...
    ;;

  install)
    _arguments '1:link:(link)' \
               '2:name:(name)' \
               '3:path:(path)' \
               '*--slave:path:(spath):name:(sname):path:(spath2)'
  esac

Without a `islave' state.  It would allow mixing the arguments of
--install with the --slave options which probably isn't allowed.


Bye
  Sven

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