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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/>.
#
# if IFS side effects in ${IFS=} assignments take place, how do you cope with
# later changes to IFS in the same set of expansions? You've already
# committed to using the first character of the (old) IFS to expand $* in
# the previous expansions, and changing it to not include ' ', for instance,
# results in the first couple of ${*} below not being split at all
set -f -- a b c
unset -v IFS
printf '<%s> ' ${*}${IFS=}${*}${IFS:=-}"${*}"
echo
printf "after 1: IFS "
echo "${IFS-unset}"
recho "$*"
set -f -- a 'b c' d
unset -v IFS
printf '<%s> ' ${*}${IFS=}${*}${IFS:=-}"${*}"
echo
printf "after 2: IFS "
echo "${IFS-unset}"
recho "$*"
unset -v IFS
recho $*
recho "$*"
IFS=' '
recho $*
recho "$*"
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