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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/>.
#
n() { echo $#; }
set --
n "$@"
# should be 1
n "$@"''
n ''"$@"
n ''"$@"''
set -- ''
n "$@"
# should be 1
n "$@"''
n ''"$@"
n ''"$@"''
set -- '' ''
n "$@"
# should be 2
n ''"$@"
# should be 2
n "$@"''
# should be 2
n ''"$@"''
x=x
set --
n ${x+"$@"}
# should be 1
n ${x+"$@"''}
n ${x+''"$@"}
n ${x+''"$@"''}
set -- ''
n ${x+"$@"}
# should be 1
n ${x+"$@"''}
n ${x+''"$@"}
n ${x+''"$@"''}
set -- '' ''
n ${x+"$@"}
# should be 2
n ${x+''"$@"}
# should be 2
n ${x+"$@"''}
# should be 2
n ${x+''"$@"''}
set --
n "$@" "$@"
n "$@""$@"
n ${x+"$@" "$@"}
set -- ''
n ${x+"$@" "$@"}
n "$@" "$@"
set -- '' ''
n ${x+"$@" "$@"}
n "$@" "$@"
n "$@""$@"
# new tests
unset -v x
v=$'\177'
recho ''$'\177'''
recho $'\177'''
recho ''$'\177'
recho ''$v''
recho ''$v
recho $v''
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