tests/ifs.tests

#   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/>.
#
OIFS="$IFS"
IFS=":$IFS"
eval foo="a:b:c"
IFS="$OIFS"
echo $foo

OIFS=$IFS
IFS=":$IFS"
foo=$(echo a:b:c)
IFS=$OIFS

for i in $foo
do
	echo $i
done

OIFS=$IFS
IFS=":$IFS"
foo=`echo a:b:c`
IFS=$OIFS

for i in $foo
do
	echo $i
done

DEFIFS=$' \t\n'

# local copy of IFS that shadows global version
function f
{
	typeset IFS=:

	echo $1
}

function ff
{
	echo $1
}

f a:b:c:d:e
x=a:b:c:d:e
echo $x

IFS=: ff a:b:c:d:e
echo $x

# doesn't get word split
IFS=$DEFIFS
# variable assignment doesn't use new value for word splitting
IFS=: echo $x
# but does this time because of the eval
IFS=: eval echo \$x

# in posix mode, assignments preceding special builtins and functions are global
set -o posix
IFS=: export x
echo $x

IFS="$DEFIFS"

${THIS_SH} ./ifs1.sub