[Bash-completion-devel] completion for ipv6calc

[Adrian Friedli]

Hallo

On Sunday 03 January 2010 21:23:11 gibboris at gmail.com wrote:
> I was not thinking about that (sorry if I confused you)
> _split_longopt aims to ease the use of $prev and AFAIK especially in the
>  case where --in=blah has to be used.
> But I don't know enough about the use of this function to push any advise
>  here.

Ok, --in=blah is usable in ipv6calc too.

> but in the previous email I was thinking about replacing the following :
> >     COMPREPLY=( $( compgen -W '--help --quiet --in --out --action \
> >         --examples --showinfo --lowercase --uppercase \
> >         --printprefix --printsuffix --maskprefix --masksuffix \
> >         --printcompressed --printuncompressed \
> >         --printfulluncompressed' -- "$cur" ) )
> 
> by :
> [[ "$cur" == -* ]] && _longopt ipv6calc
> 
> BUT after a quick look at the ipv6calc --help 2>&1 output it
> seems it's not well enough formatted to permit this kind of
> automation. (some options are not documented in --help, or several
> different are on the same line what's not currently handled by _longopt)
> so ... forget all about what I said :)

Yes, _longopt gives for ipv6calc only 11 options. But I found a way to get a 
list of options for --in, --out and --action automatically.

> Exception that :
> 1) some options are missing anyway (I repeat I don't know the program nor I
>  use ipv6 ;)  : --machine_readable, --show_types, --db-geoip, --printstart,
>  --printend, --db-ip2location-ipv4 --db-ip2location-ipv6,
>  --db-geoip-default
> (http://cvs.deepspace6.net/view/ipv6calc/lib/ipv6calchelp.c?rev=1.17&conten
> t-type=text/vnd.viewcvs-markup) [ here (programs with compile-time
>  features/help-output) is the power of _longopt ]

I included all the options I could find, altough not all of them are enabled 
in the Debian package of ipv6calc.

> 2) IMHO the long-options COMPREPLY should happen if [[ "$cur" == -* ]]
> 3) so no completion happens otherwise (return 0) (as it seems like input
>  files aren't accepted arguments)

OK.

Cheers, Adi
-------------- next part --------------
have ipv6calc &&
_ipv6calc()
{
    local cur prev split=false

    COMPREPLY=()
    cur=`_get_cword =`
    prev=`_get_pword`

    _split_longopt && split=true

    case "$prev" in
        -d|--debug)
            return 0
            ;;
        -I|--in|-O|--out|-A|--action)
            COMPREPLY=( $( compgen -W "$( ipv6calc -m "$prev" -h \
                2>&1 )" -- "$cur" ) )
            return 0
            ;;
        --db-geoip|--db-ip2location-ipv4|--db-ip2location-ipv6)
            _filedir
            return 0
            ;;
        --printstart|--printend)
            return 0
            ;;
    esac

    $split && return 0

    if [[ "$cur" == -* ]]; then
        COMPREPLY=( $( compgen -W '--help --debug --quiet --in \
            --out --action --examples --showinfo --show_types \
            --machine_readable --db-geoip --db-geoip-default \
            --db-ip2location-ipv4 --db-ip2location-ipv6 \
            --lowercase --uppercase --printprefix --printsuffix \
            --maskprefix --masksuffix --printstart --printend \
            --printcompressed --printuncompressed \
            --printfulluncompressed --printmirrored' -- "$cur" ) )
        return 0
    fi

    return 0
} &&
complete -F _ipv6calc ipv6calc

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