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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/>.
#
# Usage: $SHELL ifs.sh
#
# This script generates 6856 tests for the set(1) and read(1)
# builtins w.r.t. IFS whitespace and non-whitespace characters.
# Each failed test produces one line on the standard output that
# contains the test along with the expected and actual results.
# The last output line contains the test result counts. ordered>0
# are the number of tests where IFS=": " produced different results
# than IFS=" :". If a test fails the same way for IFS=": " and
# IFS=" :" then the second output line is suppressed.
TESTS=6856
ksh_read=0
echo 1 | read ksh_read
ksh_arith=0
eval '((ksh_arith+=1))' 2>/dev/null
failed=0
ordered=0
passed=0
split()
{
i=$1 s=$2 r=$3 S='' R=''
for ifs in ': ' ' :'
do IFS=$ifs
set x $i
shift
IFS=' '
g="[$#]"
while :
do case $# in
0) break ;;
esac
g="$g($1)"
shift
done
case $g in
"$s") case $ksh_arith in
1) ((passed+=1)) ;;
*) passed=`expr $passed + 1` ;;
esac
case $S in
'') S=$g
;;
"$g") ;;
*) case $ksh_arith in
1) ((ordered+=1)) ;;
*) ordered=`expr $ordered + 1` ;;
esac
;;
esac
;;
"$S") case $ksh_arith in
1) ((failed+=1)) ;;
*) failed=`expr $failed + 1` ;;
esac
;;
*) case $ksh_arith in
1) ((failed+=1)) ;;
*) failed=`expr $failed + 1` ;;
esac
case $s in
"$S") ;;
?0*) echo "IFS=\"$ifs\"; x=\"$i\"; set x \$x; shift; echo \"[\$#]\" # expected \"$s\" got \"$g\"" ;;
?1*) echo "IFS=\"$ifs\"; x=\"$i\"; set x \$x; shift; echo \"[\$#](\$1)\" # expected \"$s\" got \"$g\"" ;;
?2*) echo "IFS=\"$ifs\"; x=\"$i\"; set x \$x; shift; echo \"[\$#](\$1)(\$2)\" # expected \"$s\" got \"$g\"" ;;
?3*) echo "IFS=\"$ifs\"; x=\"$i\"; set x \$x; shift; echo \"[\$#](\$1)(\$2)(\$3)\" # expected \"$s\" got \"$g\"" ;;
*) echo TEST ERROR i="'$i'" s="'$s'" ;;
esac
case $S in
'') S=$g
;;
"$g") ;;
*) case $ksh_arith in
1) ((ordered+=1)) ;;
*) ordered=`expr $ordered + 1` ;;
esac
;;
esac
esac
case $ksh_read in
1) echo "$i" | IFS=$ifs read x y; g="($x)($y)" ;;
*) g=`export ifs; echo "$i" | ( IFS=$ifs; read x y; echo "($x)($y)" )` ;;
esac
case $g in
"$r") case $ksh_arith in
1) ((passed+=1)) ;;
*) passed=`expr $passed + 1` ;;
esac
case $R in
'') R=$g
;;
"$g") ;;
*) case $ksh_arith in
1) ((ordered+=1)) ;;
*) ordered=`expr $ordered + 1` ;;
esac
;;
esac
;;
"$R") case $ksh_arith in
1) ((failed+=1)) ;;
*) failed=`expr $failed + 1` ;;
esac
;;
*) case $ksh_arith in
1) ((failed+=1)) ;;
*) failed=`expr $failed + 1` ;;
esac
case $r in
"$R") ;;
*) echo "echo \"$i\" | ( IFS=\"$ifs\" read x y; echo \"(\$x)(\$y)\" ) # expected \"$r\" got \"$g\"" ;;
esac
case $R in
'') R=$g
;;
"$g") ;;
*) case $ksh_arith in
1) ((ordered+=1)) ;;
*) ordered=`expr $ordered + 1` ;;
esac
;;
esac
;;
esac
done
}
for str in \
'-' \
'a' \
'- -' \
'- a' \
'a -' \
'a b' \
'- - -' \
'- - a' \
'- a -' \
'- a b' \
'a - -' \
'a - b' \
'a b -' \
'a b c' \
do
IFS=' '
set x $str
shift
case $# in
0) continue ;;
esac
f1=$1
case $f1 in
'-') f1='' ;;
esac
shift
case $# in
0) for d0 in '' ' '
do
for d1 in '' ' ' ':' ' :' ': ' ' : '
do
case $f1$d1 in
'') split "$d0$f1$d1" "[0]" "()()" ;;
' ') ;;
*) split "$d0$f1$d1" "[1]($f1)" "($f1)()" ;;
esac
done
done
continue
;;
esac
f2=$1
case $f2 in
'-') f2='' ;;
esac
shift
case $# in
0) for d0 in '' ' '
do
for d1 in ' ' ':' ' :' ': ' ' : '
do
case ' ' in
$f1$d1|$d1$f2) continue ;;
esac
for d2 in '' ' ' ':' ' :' ': ' ' : '
do
case $f2$d2 in
'') split "$d0$f1$d1$f2$d2" "[1]($f1)" "($f1)()" ;;
' ') ;;
*) split "$d0$f1$d1$f2$d2" "[2]($f1)($f2)" "($f1)($f2)" ;;
esac
done
done
done
continue
;;
esac
f3=$1
case $f3 in
'-') f3='' ;;
esac
shift
case $# in
0) for d0 in '' ' '
do
for d1 in ':' ' :' ': ' ' : '
do
case ' ' in
$f1$d1|$d1$f2) continue ;;
esac
for d2 in ' ' ':' ' :' ': ' ' : '
do
case $f2$d2 in
' ') continue ;;
esac
case ' ' in
$f2$d2|$d2$f3) continue ;;
esac
for d3 in '' ' ' ':' ' :' ': ' ' : '
do
case $f3$d3 in
'') split "$d0$f1$d1$f2$d2$f3$d3" "[2]($f1)($f2)" "($f1)($f2)" ;;
' ') ;;
*) x=$f2$d2$f3$d3
x=${x#' '}
x=${x%' '}
split "$d0$f1$d1$f2$d2$f3$d3" "[3]($f1)($f2)($f3)" "($f1)($x)"
;;
esac
done
done
done
done
continue
;;
esac
done
case $ksh_arith in
1) ((tests=passed+failed)) ;;
*) tests=`expr $passed + $failed` ;;
esac
case $ordered in
0) ordered="" ;;
*) ordered=" ordered $ordered" ;;
esac
case $tests in
$TESTS) fatal="" ;;
*) fatal=" -- fundamental IFS error -- $TESTS tests expected"
esac
echo "# tests $tests passed $passed failed $failed$ordered$fatal"
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