#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program 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 General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

declare -lr VAR1
declare -lr VAR2=zzz
declare -alr VAR3

var=VAR2

echo ${!var@Q}
echo ${VAR2@Q}

echo ${VAR1@A}
echo ${VAR1[@]@A}
echo "${VAR1@A}"
echo "${VAR1[@]@A}"

echo "${VAR1[@]@a}"
echo ${VAR1[@]@a}
echo "${VAR1@a}"
echo ${VAR1@a}

echo ${VAR3@A}
echo ${VAR3[@]@A}
echo "${VAR3@A}"
echo "${VAR3[@]@A}"

echo "${VAR3[@]@a}"
echo ${VAR3[@]@a}
echo "${VAR3@a}"
echo ${VAR3@a}

var=one

echo ${var}
echo ${var[@]}

VAR4=(aaa bbb)

varname=VAR4

echo ${!varname[@]@Q}

echo ${VAR4[@]@Q}
echo ${!VAR4[@]@Q}

echo ${VAR4[@]}
echo ${!VAR4[@]}

VAR5=(aaa bbb)
varname="VAR5[@]"

echo "${VAR5@Q}"
echo "${VAR5[@]@Q}"

echo "${!varname@Q}"
echo "${!varname[@]@Q}"

# caused core dumps through bash-5.0
echo "${!varname##aa}"
echo "${!varname[@]%b}"