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# 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/>.
#
set -- "abc" "def ghi" "jkl"
A=("$@")
IFS=':'
echo 'IFS=: ${var-$*}'
unset var; printf '%s\n' ${var-$*}
printf '%s\n' ${var-${A[*]}}
echo "----"
echo 'IFS=: ${var=$*}'
unset var; printf '%s\n' ${var=$*}
printf 'var=%s\n' "$var"
unset var; printf '%s\n' ${var=${A[*]}}
printf 'var=%s\n' "$var"
echo "----"
echo 'IFS=: ${var+$*}'
printf '%s\n' ${var+$*}
printf '%s\n' ${var+${A[*]}}
echo "----"
echo 'IFS= ${var-$*}'
IFS=''
unset var; printf '%s\n' ${var-$*}
unset var; printf '%s\n' ${var-${A[*]}}
echo "----"
echo 'IFS= ${var=$*}'
unset var
printf '%s\n' ${var=$*}
printf 'var=%s\n' "$var"
unset var
printf '%s\n' ${var=${A[*]}}
printf 'var=%s\n' "$var"
echo "----"
echo 'IFS= ${var+$*}'
printf '%s\n' ${var+$*}
printf '%s\n' ${var+${A[*]}}
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