commit bash-20161216 snapshot

tests/assoc.right

@@ -195,3 +195,23 @@ declare -A assoc=([0]="assoc" )
 assoc
 declare -A assoc=([two]="twoless" [three]="three" [one]="onemore" )
 declare -Ar assoc=([two]="twoless" [three]="three" [one]="onemore" )
+declare -A b=(["\""]="" [")"]="" ["\\"]="" ["]"]="" ["\`"]="" )
+declare -A b=(["]"]="" ["\`"]="" )
+declare -A dict=(["\""]="1" ["'"]="3" ["\\"]="4" ["\`"]="2" )
+./assoc9.sub: line 23: unset: `dict["]': not a valid identifier
+./assoc9.sub: line 23: unset: `dict[']': not a valid identifier
+./assoc9.sub: line 23: unset: `dict[\]': not a valid identifier
+./assoc9.sub: line 23: unset: `dict[`]': not a valid identifier
+declare -A dict=(["\""]="1" ["'"]="3" ["\\"]="4" ["\`"]="2" )
+declare -A dict=(["\""]="1" ["'"]="3" ["\\"]="4" ["\`"]="2" )
+declare -A dict=()
+4
+4
+a[$b]= 5
+declare -A a=(["80's"]="Depeche Mode" )
+./assoc9.sub: line 71: read: `a[80's]': not a valid identifier
+declare -A a
+declare -A a=(["80's"]="Depeche Mode" )
+./assoc9.sub: line 83: printf: `a[80's]': not a valid identifier
+declare -A a
+declare -A a=(["80's"]="Depeche Mode" )

tests/assoc.tests

@@ -207,3 +207,6 @@ readonly -A assoc
 declare -p assoc
 
 ${THIS_SH} ./assoc8.sub
+
+# new shopt option to prevent multiple expansion of assoc array subscripts
+${THIS_SH} ./assoc9.sub

tests/assoc9.sub

@@ -0,0 +1,89 @@
+typeset -A a=( [\\]= [\"]= [\)]= ) b
+for x in "${!a[@]}"; do b[$x]=; done
+b+=([\`]= [\]]=)
+typeset -p b
+for x in "${!a[@]}"; do
+  unset -v 'b[$x]'
+done
+typeset -p b
+
+unset -v a b
+
+loaddict()
+{
+    dict['"']=1
+    dict['`']=2
+    dict["'"]=3
+    dict['\']=4
+    declare -p dict
+}
+
+del()
+{
+	unset -v dict["$1"];
+}
+
+declare -A dict
+loaddict
+for k in "${!dict[@]}"; do del "$k"; done 
+declare -p dict
+
+unset 'dict[@]'
+
+shopt -s assoc_expand_once
+declare -A dict
+loaddict
+for k in "${!dict[@]}"; do del "$k"; done 
+declare -p dict
+
+unset a b dict
+
+typeset -A a
+b="80's"
+
+((++a[$b]))
+
+((++a["$b"]))
+[[ $((++a[$b])) ]]
+[[ $((++a["$b"])) ]]
+echo ${a["$b"]}
+echo ${a[$b]}
+
+let "++a[$b]"
+
+echo 'a[$b]=' "${a[$b]}"
+
+unset a b
+
+declare -A a
+b="80's"
+
+: ${a[$b]:='Depeche Mode'}
+
+declare -p a
+
+unset a b
+shopt -u assoc_expand_once
+
+typeset -A a
+b="80's"
+
+read a[$b] <<<"Depeche Mode"
+typeset -p a
+
+shopt -s assoc_expand_once
+read a[$b] <<<"Depeche Mode"
+typeset -p a
+
+unset a
+shopt -u assoc_expand_once
+
+typeset -A a
+
+printf -v a[$b] "%s" "Depeche Mode"
+typeset -p a
+
+shopt -s assoc_expand_once
+
+printf -v a[$b] "%s" "Depeche Mode"
+typeset -p a