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Editing File: /usr/share/bash-completion/completions/systemd-cat

# systemd-cat(1) completion                  -*- shell-script -*-
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# This file is part of systemd.
#
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# systemd is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with systemd; If not, see <http://www.gnu.org/licenses/>.

__contains_word() {
    local w word=$1; shift
    for w in "$@"; do
        [[ $w = "$word" ]] && return
    done
}

_systemd_cat() {
    local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
    local i verb comps

local -A OPTS=(
        [STANDALONE]='-h --help --version'
        [ARG]='-t --identifier -p --priority --level-prefix'
    )

_init_completion || return

if __contains_word "$prev" ${OPTS[ARG]}; then
        case $prev in
            --identifier|-t)
                comps=''
                ;;
            --priority|-p)
                comps='emerg alert crit err warning notice info debug'
                ;;
            --level-prefix)
                comps='yes no'
                ;;
        esac
        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
        return 0
    fi

COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
}

complete -F _systemd_cat systemd-cat

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