variables.sh revision 7c2fbfb345896881c631598ee3852ce9ce33fb07
########################################################################
# #
# This software is part of the ast package #
# Copyright (c) 1982-2008 AT&T Intellectual Property #
# and is licensed under the #
# Common Public License, Version 1.0 #
# by AT&T Intellectual Property #
# #
# A copy of the License is available at #
# http://www.opensource.org/licenses/cpl1.0.txt #
# (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) #
# #
# Information and Software Systems Research #
# AT&T Research #
# Florham Park NJ #
# #
# David Korn <dgk@research.att.com> #
# #
########################################################################
function err_exit
{
print -u2 -n "\t"
print -u2 -r ${Command}[$1]: "${@:2}"
let Errors+=1
}
alias err_exit='err_exit $LINENO'
Command=${0##*/}
integer Errors=0
[[ ${.sh.version} == "$KSH_VERSION" ]] || err_exit '.sh.version != KSH_VERSION'
unset ss
[[ ${@ss} ]] && err_exit '${@ss} should be empty string when ss is unset'
[[ ${!ss} == ss ]] || err_exit '${!ss} should be ss when ss is unset'
[[ ${#ss} == 0 ]] || err_exit '${#ss} should be 0 when ss is unset'
# RANDOM
if (( RANDOM==RANDOM || $RANDOM==$RANDOM ))
then err_exit RANDOM variable not working
fi
# SECONDS
sleep 3
if (( SECONDS < 2 ))
then err_exit SECONDS variable not working
fi
# _
set abc def
if [[ $_ != def ]]
then err_exit _ variable not working
fi
# ERRNO
#set abc def
#rm -f foobar#
#ERRNO=
#2> /dev/null < foobar#
#if (( ERRNO == 0 ))
#then err_exit ERRNO variable not working
#fi
# PWD
if [[ ! $PWD -ef . ]]
then err_exit PWD variable not working
fi
# PPID
if [[ $($SHELL -c 'print $PPID') != $$ ]]
then err_exit PPID variable not working
fi
# OLDPWD
old=$PWD
cd /
if [[ $OLDPWD != $old ]]
then err_exit OLDPWD variable not working
fi
cd $old || err_exit cd failed
# REPLY
read <<-!
foobar
!
if [[ $REPLY != foobar ]]
then err_exit REPLY variable not working
fi
integer save=$LINENO
# LINENO
LINENO=10
#
# These lines intentionally left blank
#
if (( LINENO != 13))
then err_exit LINENO variable not working
fi
LINENO=save+10
IFS=:
x=a::b::c
if [[ $x != a::b::c ]]
then err_exit "Word splitting on constants"
fi
set -- $x
if [[ $# != 5 ]]
then err_exit ":: doesn't separate null arguments "
fi
set x
if x$1=0 2> /dev/null
then err_exit "x\$1=value treated as an assignment"
fi
# check for attributes across subshells
typeset -i x=3
y=1/0
if ( typeset x=y ) 2> /dev/null
then err_exit "attributes not passed to subshells"
fi
unset x
function x.set
{
nameref foo=${.sh.name}.save
foo=${.sh.value}
.sh.value=$0
}
x=bar
if [[ $x != x.set ]]
then err_exit 'x.set does not override assignment'
fi
x.get()
{
nameref foo=${.sh.name}.save
.sh.value=$foo
}
if [[ $x != bar ]]
then err_exit 'x.get does not work correctly'
fi
typeset +n foo
unset foo
foo=bar
(
unset foo
set +u
if [[ $foo != '' ]]
then err_exit '$foo not null after unset in subsehll'
fi
)
if [[ $foo != bar ]]
then err_exit 'unset foo in subshell produces side effect '
fi
unset foo
if [[ $( { : ${foo?hi there} ; } 2>&1) != *'hi there' ]]
then err_exit '${foo?hi there} with foo unset does not print hi there on 2'
fi
x=$0
set foobar
if [[ ${@:0} != "$x foobar" ]]
then err_exit '${@:0} not expanding correctly'
fi
set --
if [[ ${*:0:1} != "$0" ]]
then err_exit '${@:0} not expanding correctly'
fi
ACCESS=0
function COUNT.set
{
(( ACCESS++ ))
}
COUNT=0
(( COUNT++ ))
if (( COUNT != 1 || ACCESS!=2 ))
then err_exit " set discipline failure COUNT=$COUNT ACCESS=$ACCESS"
fi
LANG=C > /dev/null 2>&1
if [[ $LANG != C ]]
then err_exit "C locale not working"
fi
unset RANDOM
unset -n foo
foo=junk
function foo.get
{
.sh.value=stuff
unset -f foo.get
}
if [[ $foo != stuff ]]
then err_exit "foo.get discipline not working"
fi
if [[ $foo != junk ]]
then err_exit "foo.get discipline not working after unset"
fi
# special variables
set -- 1 2 3 4 5 6 7 8 9 10
sleep 1000 &
if [[ $(print -r -- ${#10}) != 2 ]]
then err_exit '${#10}, where ${10}=10 not working'
fi
for i in @ '*' ! '#' - '?' '$'
do false
eval foo='$'$i bar='$'{$i}
if [[ ${foo} != "${bar}" ]]
then err_exit "\$$i not equal to \${$i}"
fi
command eval bar='$'{$i%?} 2> /dev/null || err_exit "\${$i%?} gives syntax error"
if [[ $i != [@*] && ${foo%?} != "$bar" ]]
then err_exit "\${$i%?} not correct"
fi
command eval bar='$'{$i#?} 2> /dev/null || err_exit "\${$i#?} gives syntax error"
if [[ $i != [@*] && ${foo#?} != "$bar" ]]
then err_exit "\${$i#?} not correct"
fi
command eval foo='$'{$i} bar='$'{#$i} || err_exit "\${#$i} gives synta
x error"
if [[ $i != @([@*]) && ${#foo} != "$bar" ]]
then err_exit "\${#$i} not correct"
fi
done
kill $!
unset x
CDPATH=/
x=$(cd tmp)
if [[ $x != /tmp ]]
then err_exit 'CDPATH does not display new directory'
fi
mkdir /tmp/ksh$$
CDPATH=/:
x=$(cd /tmp;cd ksh$$)
if [[ $x ]]
then err_exit 'CDPATH displays new directory when not used'
fi
x=$(cd tmp/ksh$$)
if [[ $x != /tmp/ksh$$ ]]
then err_exit "CDPATH tmp/ksh$$ does not display new directory"
fi
cd /
rm -rf /tmp/ksh$$
TMOUT=100
(TMOUT=20)
if (( TMOUT !=100 ))
then err_exit 'setting TMOUT in subshell affects parent'
fi
unset y
function setdisc # var
{
eval function $1.get'
{
.sh.value=good
}
'
}
y=bad
setdisc y
if [[ $y != good ]]
then err_exit 'setdisc function not working'
fi
integer x=$LINENO
: $'\
'
if (( LINENO != x+3 ))
then err_exit '\<newline> gets linenumber count wrong'
fi
set --
set -- "${@-}"
if (( $# !=1 ))
then err_exit '"${@-}" not expanding to null string'
fi
for i in : % + / 3b '**' '***' '@@' '{' '[' '}' !! '*a' '$foo'
do (eval : \${"$i"} 2> /dev/null) && err_exit "\${$i} not an syntax error"
done
unset IFS
( IFS=' ' ; read -r a b c <<-!
x y z
!
if [[ $b ]]
then err_exit 'IFS=" " not causing adjacent space to be null string'
fi
)
read -r a b c <<-!
x y z
!
if [[ $b != y ]]
then err_exit 'IFS not restored after subshell'
fi
# The next part generates 3428 IFS set/read tests.
unset IFS x
function split
{
i=$1 s=$2 r=$3
IFS=': '
set -- $i
IFS=' '
g="[$#]"
while :
do case $# in
0) break ;;
esac
g="$g($1)"
shift
done
case "$g" in
"$s") ;;
*) err_exit "IFS=': '; set -- '$i'; expected '$s' got '$g'" ;;
esac
print "$i" | IFS=": " read arg rem; g="($arg)($rem)"
case "$g" in
"$r") ;;
*) err_exit "IFS=': '; read '$i'; expected '$r' got '$g'" ;;
esac
}
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
unset IFS
if [[ $( (print ${12345:?}) 2>&1) != *12345* ]]
then err_exit 'Incorrect error message with ${12345?}'
fi
unset foobar
if [[ $( (print ${foobar:?}) 2>&1) != *foobar* ]]
then err_exit 'Incorrect error message with ${foobar?}'
fi
unset bar
if [[ $( (print ${bar:?bam}) 2>&1) != *bar*bam* ]]
then err_exit 'Incorrect error message with ${foobar?}'
fi
{ $SHELL -c '
function foo
{
typeset SECONDS=0
sleep 1.5
print $SECONDS
}
x=$(foo)
(( x >1 && x < 2 ))
'
} 2> /dev/null || err_exit 'SECONDS not working in function'
trap 'rm -f /tmp/script$$ /tmp/out$$' EXIT
cat > /tmp/script$$ <<-\!
posixfun()
{
unset x
nameref x=$1
print -r -- "$x"
}
function fun
{
nameref x=$1
print -r -- "$x"
}
if [[ $1 ]]
then file=${.sh.file}
else print -r -- "${.sh.file}"
fi
!
chmod +x /tmp/script$$
. /tmp/script$$ 1
[[ $file == /tmp/script$$ ]] || err_exit ".sh.file not working for dot scripts"
[[ $($SHELL /tmp/script$$) == /tmp/script$$ ]] || err_exit ".sh.file not working for scripts"
[[ $(posixfun .sh.file) == /tmp/script$$ ]] || err_exit ".sh.file not working for posix functions"
[[ $(fun .sh.file) == /tmp/script$$ ]] || err_exit ".sh.file not working for functions"
[[ $(posixfun .sh.fun) == posixfun ]] || err_exit ".sh.fun not working for posix functions"
[[ $(fun .sh.fun) == fun ]] || err_exit ".sh.fun not working for functions"
[[ $(posixfun .sh.subshell) == 1 ]] || err_exit ".sh.subshell not working for posix functions"
[[ $(fun .sh.subshell) == 1 ]] || err_exit ".sh.subshell not working for functions"
(
[[ $(posixfun .sh.subshell) == 2 ]] || err_exit ".sh.subshell not working for posix functions in subshells"
[[ $(fun .sh.subshell) == 2 ]] || err_exit ".sh.subshell not working for functions in subshells"
(( .sh.subshell == 1 )) || err_exit ".sh.subshell not working in a subshell"
)
TIMEFORMAT='this is a test'
[[ $({ { time :;} 2>&1;}) == "$TIMEFORMAT" ]] || err_exit 'TIMEFORMAT not working'
: ${.sh.version}
[[ $(alias integer) == *.sh.* ]] && err_exit '.sh. prefixed to alias name'
: ${.sh.version}
[[ $(whence rm) == *.sh.* ]] && err_exit '.sh. prefixed to tracked alias name'
: ${.sh.version}
[[ $(cd /bin;env | grep PWD=) == *.sh.* ]] && err_exit '.sh. prefixed to PWD'
# unset discipline bug fix
dave=dave
function dave.unset
{
unset dave
}
unset dave
[[ $(typeset +f) == *dave.* ]] && err_exit 'unset discipline not removed'
print 'print ${VAR}' > /tmp/script$$
unset VAR
VAR=new /tmp/script$$ > /tmp/out$$
got=$(</tmp/out$$)
[[ $got == new ]] || err_exit "previously unset environment variable not passed to script, expected 'new', got '$got'"
[[ ! $VAR ]] || err_exit "previously unset environment variable set after script, expected '', got '$VAR'"
unset VAR
VAR=old
VAR=new /tmp/script$$ > /tmp/out$$
got=$(</tmp/out$$)
[[ $got == new ]] || err_exit "environment variable covering local variable not passed to script, expected 'new', got '$got'"
[[ $VAR == old ]] || err_exit "previously set local variable changed after script, expected 'old', got '$VAR'"
unset VAR
export VAR=old
VAR=new /tmp/script$$ > /tmp/out$$
got=$(</tmp/out$$)
[[ $got == new ]] || err_exit "environment variable covering environment variable not passed to script, expected 'new', got '$got'"
[[ $VAR == old ]] || err_exit "previously set environment variable changed after script, expected 'old', got '$VAR'"
(
unset dave
function dave.append
{
.sh.value+=$dave
dave=
}
dave=foo; dave+=bar
[[ $dave == barfoo ]] || exit 2
) 2> /dev/null
case $? in
0) ;;
1) err_exit 'append discipline not implemented';;
*) err_exit 'append discipline not working';;
esac
.sh.foobar=hello
{
function .sh.foobar.get
{
.sh.value=world
}
} 2> /dev/null || err_exit "Can't add get discipline to .sh.foobar"
[[ ${.sh.foobar} == world ]] || err_exit 'get discipline for .sh.foobar not working'
x='a|b'
IFS='|'
set -- $x
[[ $2 == b ]] || err_exit '$2 should be b after set'
exec 3>&2 2> /dev/null
set -x
( IFS= ) 2> /dev/null
set +x
exec 2>&3-
set -- $x
[[ $2 == b ]] || err_exit '$2 should be b after subshell'
: & pid=$!
( : & )
[[ $pid == $! ]] || err_exit '$! value not preserved across subshells'
unset foo
typeset -A foo
function foo.set
{
case ${.sh.subscript} in
bar) if ((.sh.value > 1 ))
then .sh.value=5
foo[barrier_hit]=yes
fi
;;
barrier_hit)
if [[ ${.sh.value} = yes ]]
then foo[barrier_not_hit]=no
else foo[barrier_not_hit]=yes
fi
;;
esac
}
foo[barrier_hit]=no
foo[bar]=1
(( foo[bar] == 1 )) || err_exit 'foo[bar] should be 1'
[[ ${foo[barrier_hit]} == no ]] || err_exit 'foo[barrier_hit] should be no'
[[ ${foo[barrier_not_hit]} == yes ]] || err_exit 'foo[barrier_not_hit] should be yes'
foo[barrier_hit]=no
foo[bar]=2
(( foo[bar] == 5 )) || err_exit 'foo[bar] should be 5'
[[ ${foo[barrier_hit]} == yes ]] || err_exit 'foo[barrier_hit] should be yes'
[[ ${foo[barrier_not_hit]} == no ]] || err_exit 'foo[barrier_not_hit] should be no'
unset x
typeset -i x
function x.set
{
typeset sub=${.sh.subscript}
(( sub > 0 )) && (( x[sub-1]= x[sub-1] + .sh.value ))
}
x[0]=0 x[1]=1 x[2]=2 x[3]=3
[[ ${x[@]} == '12 8 5 3' ]] || err_exit 'set discipline for indexed array not working correctly'
((SECONDS=3*4))
(( SECONDS < 12 || SECONDS > 12.1 )) && err_exit "SECONDS is $SECONDS and should be close to 12"
unset a
function a.set
{
print -r -- "${.sh.name}=${.sh.value}"
}
[[ $(a=1) == a=1 ]] || err_exit 'set discipline not working in subshell assignment'
[[ $(a=1 :) == a=1 ]] || err_exit 'set discipline not working in subshell command'
[[ ${.sh.subshell} == 0 ]] || err_exit '${.sh.subshell} should be 0'
(
[[ ${.sh.subshell} == 1 ]] || err_exit '${.sh.subshell} should be 1'
(
[[ ${.sh.subshell} == 2 ]] || err_exit '${.sh.subshell} should be 2'
)
)
set -- {1..32768}
(( $# == 32768 )) || err_exit "\$# failed -- expected 32768, got $#"
set --
unset r v x
path=$PATH
x=foo
for v in EDITOR VISUAL OPTIND CDPATH FPATH PATH ENV LINENO RANDOM SECONDS _
do nameref r=$v
unset $v
if ( $SHELL -c "unset $v; : \$$v" ) 2>/dev/null
then [[ $r ]] && err_exit "unset $v failed -- expected '', got '$r'"
r=$x
[[ $r == $x ]] || err_exit "$v=$x failed -- expected '$x', got '$r'"
else err_exit "unset $v; : \$$v failed"
fi
done
for v in LC_ALL LC_CTYPE LC_MESSAGES LC_COLLATE LC_NUMERIC
do nameref r=$v
unset $v
[[ $r ]] && err_exit "unset $v failed -- expected '', got '$r'"
d=$($SHELL -c "$v=$x" 2>&1)
[[ $d ]] || err_exit "$v=$x failed -- expected locale diagnostic"
( r=$x; [[ ! $r ]] ) 2>/dev/null || err_exit "$v=$x failed -- expected ''"
( r=C; r=$x; [[ $r == C ]] ) 2>/dev/null || err_exit "$v=C; $v=$x failed -- expected 'C'"
done
PATH=$path
exit $((Errors))