#   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/>.
#
foo='1 2'
bar='3 4 5'
xtra='20 40 80'

declare -A v1=( $foo 3 )
declare -p v1

declare -A v2=( [$foo]=3 )
declare -p v2

declare -A  v3
v3=( $foo 3 )
declare -p v3

unset v1 v2 v3

declare -A v1=( $foo $bar )
declare -p v1

declare -A v2=( [$foo]=$bar )
declare -p v2

declare -A  v3
v3=( $foo $bar )
declare -p v3

unset v1 v2 v3

declare -A v1=( "$foo" $bar )
declare -p v1

declare -A v2=( ["$foo"]=$bar )
declare -p v2

declare -A  v3
v3=( "$foo" $bar )
declare -p v3

unset v1 v2 v3

declare -A v1=( "$foo" "$bar" )
declare -p v1

declare -A v2=( ["$foo"]="$bar" )
declare -p v2

declare -A  v3
v3=( "$foo" "$bar" )
declare -p v3

v1+=( $xtra xtra )
v2+=( "$xtra" xtra )
v3+=( '$xtra' xtra )

declare -p v1 v2 v3

v1+=( [$xtra]='new xtra' )
v2+=( ["$xtra"]='new xtra' )
v3+=( ['$xtra']='new xtra' )

declare -p v1 v2 v3