Bash-5.3-alpha release

tests/array.tests

@@ -11,13 +11,19 @@
 #   You should have received a copy of the GNU General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
+
+# Filter stdin to remove builtin array variables that are
+# automatically set and possibly contain values that vary.
+ignore_builtin_arrays()
+{
+	grep -v -e BASH_VERSINFO= -e PIPESTATUS= -e GROUPS=
+}
+
 # this is needed so that the bad assignments (b[]=bcde, for example) do not
 # cause fatal shell errors when in posix mode
 set +o posix
 
 set +a
-# The calls to egrep -v are to filter out builtin array variables that are
-# automatically set and possibly contain values that vary.
 
 # first make sure we handle the basics
 x=()
@@ -61,7 +67,7 @@ echo ${a[@]}
 echo ${a[*]}
 
 # this should print out values, too
-declare -a | egrep -v '(BASH_VERSINFO|PIPESTATUS|GROUPS)'
+declare -a | ignore_builtin_arrays
 
 unset a[7]
 echo ${a[*]}
@@ -92,11 +98,11 @@ echo ${a[@]}
 readonly a[5]
 readonly a
 # these two lines should output `declare' commands
-readonly -a | egrep -v '(BASH_VERSINFO|PIPESTATUS|GROUPS)'
-declare -ar | egrep -v '(BASH_VERSINFO|PIPESTATUS|GROUPS)'
+readonly -a | ignore_builtin_arrays
+declare -ar | ignore_builtin_arrays
 # this line should output `readonly' commands, even for arrays
 set -o posix
-readonly -a | egrep -v '(BASH_VERSINFO|PIPESTATUS|GROUPS)'
+readonly -a | ignore_builtin_arrays
 set +o posix
 
 declare -a d='([1]="" [2]="bdef" [5]="hello world" "test")'
@@ -111,7 +117,7 @@ b=([0]=this [1]=is [2]=a [3]=test [4]="$PS1" [5]=$pass)
 
 echo ${b[@]:2:3}
 
-declare -pa | egrep -v '(BASH_VERSINFO|PIPESTATUS|GROUPS)'
+declare -pa | ignore_builtin_arrays
 
 a[3]="this is a test"
 
@@ -125,11 +131,13 @@ echo ${c[-4]}
 d[7]=(abdedfegeee)
 
 d=([]=abcde [1]="test test" [*]=last [-65]=negative )
+d=([0]=abcde [1]="test test" [*]=last )
+d=([1]="test test" [-65]=negative )
 
 unset d[12]
 unset e[*]
 
-declare -a | egrep -v '(BASH_VERSINFO|PIPESTATUS|GROUPS)'
+declare -a | ignore_builtin_arrays
 
 ps1='hello'
 unset ps1[2]
@@ -155,7 +163,7 @@ echo ${vv[0]} ${vv[3]}
 echo ${vv[@]}
 unset vv
 
-declare -a | egrep -v '(BASH_VERSINFO|PIPESTATUS|GROUPS)'
+declare -a | ignore_builtin_arrays
 
 export rv
 #set
@@ -226,6 +234,11 @@ unset xpath[nelem-1]
 nelem=${#xpath[@]}
 echo ${#xpath[@]} -- $nelem
 
+# error
+echo ${#xpath[-10]}
+# zero length for unset elements
+echo ${#xpath[42]}
+
 # arrays and things that look like index assignments
 array=(42 [1]=14 [2]=44)
 
@@ -250,6 +263,9 @@ barray=(new1 new2 new3)
 echo "length = ${#barray[@]}"
 echo "value = ${barray[*]}"
 
+# the compound assignment syntax inherited from ksh93 has some quirks
+badarray=( metacharacters like & need to be quoted in compound assignments)
+
 # make sure the array code behaves correctly with respect to unset variables
 set -u
 ( echo ${#narray[4]} )
@@ -397,6 +413,18 @@ Z='a b'
 A=( X=$Z )
 declare -p A
 
+# combine with brace expansion
+letters=( {0..9} )
+echo "${letters["{2..6}"]}"
+
+# tests for assigning to noassign array variables
+BASH_ARGC=(xxx) ; echo FIN1:$?
+BASH_ARGC=foio ; echo FIN2:$?
+declare BASH_ARGC=(xxx) ; echo FIN3:$?
+declare BASH_ARGC=foio ; echo FIN4:$?
+BASH_ARGV[1]=foo ; echo FIN5:$?
+declare BASH_ARGV[1]=foo ; echo FIN6:$?
+
 # tests for bash-3.1 problems
 ${THIS_SH} ./array5.sub
 
@@ -427,3 +455,6 @@ ${THIS_SH} ./array27.sub
 ${THIS_SH} ./array28.sub
 ${THIS_SH} ./array29.sub
 ${THIS_SH} ./array30.sub
+${THIS_SH} ./array31.sub
+${THIS_SH} ./array32.sub
+${THIS_SH} ./array33.sub