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# -*- mode: sh; indent-tabs-mode: nil; -*-  vim: set ft=sh tw=80 sw=4 et :
# Copyright 2005-2012 Gentoo Foundation
# Distributed under the terms of the GNU GPL version 2 or later
# $Id$

# bash command-line completion for eselect
# Author: Aaron Walker <ka0ttic@gentoo.org>

_eselect() {
    local cur sedcmd2 sedcmd3 possibles
    local options="--brief --color --colour"
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    sedcmd2='s/^  \([[:alnum:]-][[:alnum:]_-]*\)[[:space:],].*$/\1/p'
    sedcmd3='s/^  \[[[:digit:]][[:digit:]]*\] *\([[:graph:]]*\).*$/\1/p'

    set - "${COMP_WORDS[@]:1}"
    # skip global options
    while [[ $# -gt 1 && $1 == -* ]]; do
        shift
    done
    # skip any subaction options
    while [[ $# -gt 3 && $3 == -* ]]; do
        set - "${@:1:2}" "${@:4}"
    done

    case $# in
        1) possibles="${options} $(eselect --brief modules list 2>/dev/null)"
            ;;
        2) possibles=$(eselect --brief "$1" usage 2>/dev/null \
            | sed -n -e "${sedcmd2}") ;;
        3)
            case $2 in
                set|enable|disable)
                    possibles=$(eselect "$1" list 2>/dev/null \
                        | sed -n -e "${sedcmd3}") ;;
            esac
            ;;
    esac

    [[ -n "${possibles}" ]] && \
        COMPREPLY=( $(compgen -W "${possibles}" -- ${cur}) )

    return 0
}

complete -F _eselect eselect