# bash completion for info

have info || have pinfo || return

_info()
{
    local cur prev words cword split
    _init_completion -s || return

    _expand || return 0

    # default completion if parameter looks like a path
    if [[ "$cur" == @(*/|[.~])* ]]; then
        _filedir
        return 0
    fi

    case $prev in
        -k|--apropos|--index-search|-n|--node|-h|--help|-v|--version)
            return
            ;;
        -d)
            if [[ ${1##*/} == info ]]; then
                _filedir -d
                return
            fi
            ;;
        --directory)
            _filedir -d
            return
            ;;
        --dribble|-f|--file|-o|--output|--restore|-r|--raw-filename|--rcfile)
            _filedir
            return
            ;;
    esac

    $split && return

    if [[ $cur == -* ]]; then
        COMPREPLY=( $( compgen -W '$( _parse_help "$1" )' -- "$cur" ) )
        [[ $COMPREPLY == *= ]] && compopt -o nospace
        return
    fi

    local i infopath=/usr/share/info

    if [ "${INFOPATH: -1:1}" == ':' ]; then
        infopath=${INFOPATH}${infopath}
    elif [ ${INFOPATH:+set} ]; then
        infopath=$INFOPATH
    fi

    infopath=$infopath:
    if [ -n "$cur" ]; then
        infopath="${infopath//://$cur* }"
    else
        infopath="${infopath//:// }"
    fi

    # redirect stderr for when path doesn't exist
    COMPREPLY=( $( eval command ls "$infopath" 2>/dev/null ) )
    # weed out directory path names and paths to info pages
    COMPREPLY=( ${COMPREPLY[@]##*/?(:)} )
    # weed out info dir file
    for (( i=0 ; i < ${#COMPREPLY[@]} ; ++i )); do
        if [ "${COMPREPLY[$i]}" == 'dir' ]; then
            unset COMPREPLY[$i]
        fi
    done
    # strip suffix from info pages
    COMPREPLY=( ${COMPREPLY[@]%.@(gz|bz2|xz|lzma)} )
    COMPREPLY=( $( compgen -W '${COMPREPLY[@]%.*}' -- "${cur//\\\\/}" ) )

    return 0
} &&
complete -F _info info pinfo

# Local variables:
# mode: shell-script
# sh-basic-offset: 4
# sh-indent-comment: t
# indent-tabs-mode: nil
# End:
# ex: ts=4 sw=4 et filetype=sh