commit bash-20130125 snapshot

tests/dollar-at-star

@@ -245,4 +245,8 @@ ${THIS_SH} ./dollar-at5.sub
 # tests for expansions of $* when $1 == ""; problem through bash-4.2
 ${THIS_SH} ./dollar-star6.sub
 
+# tests for expansions of $* (unquoted) when IFS changes (e.g., ${IFS:=-})
+# problem through bash-4.2
+${THIS_SH} ./dollar-star7.sub
+
 exit 0

tests/dollar-star7.sub

@@ -0,0 +1,30 @@
+# if IFS side effects in ${IFS=} assignments take place, how do you cope with
+# later changes to IFS in the same set of expansions?  You've already
+# committed to using the first character of the (old) IFS to expand $* in
+# the previous expansions, and changing it to not include ' ', for instance,
+# results in the first couple of ${*} below not being split at all
+
+set -f -- a b c
+
+unset -v IFS
+printf '<%s> ' ${*}${IFS=}${*}${IFS:=-}"${*}"
+echo
+printf "after 1: IFS "
+echo "${IFS-unset}"
+recho "$*"
+
+set -f -- a 'b c' d
+unset -v IFS
+printf '<%s> ' ${*}${IFS=}${*}${IFS:=-}"${*}"
+echo
+printf "after 2: IFS "
+echo "${IFS-unset}"
+recho "$*"
+
+unset -v IFS
+recho $*
+recho "$*"
+
+IFS=' '
+recho $*
+recho "$*"

tests/dollar.right

@@ -237,3 +237,19 @@ argv[1] = <A^?R>
 argv[1] = <AwR>
 argv[1] = <AwR>
 argv[1] = <A^?R>
+<a> <b> <ca> <b> <c-a-b-c> 
+after 1: IFS -
+argv[1] = <a-b-c>
+<a> <b> <c> <da> <b c> <d-a-b c-d> 
+after 2: IFS -
+argv[1] = <a-b c-d>
+argv[1] = <a>
+argv[2] = <b>
+argv[3] = <c>
+argv[4] = <d>
+argv[1] = <a b c d>
+argv[1] = <a>
+argv[2] = <b>
+argv[3] = <c>
+argv[4] = <d>
+argv[1] = <a b c d>

tests/exp.right

@@ -189,3 +189,19 @@ argv[1] = <c>
 argv[1] = <c>
 argv[1] = <c>
 argv[1] = <c>
+argv[1] = <correct>
+argv[2] = <>
+argv[1] = <correct>
+argv[2] = <>
+argv[1] = <correct>
+argv[2] = <>
+argv[1] = <XwrongX>
+argv[2] = <>
+argv[1] = <correct>
+argv[2] = <a>
+argv[1] = <XwrongX>
+argv[2] = <a>
+argv[1] = <correct>
+argv[2] = <a>
+argv[1] = <correct>
+argv[2] = <a>

tests/exp6.sub

@@ -14,3 +14,17 @@ recho """"c""""""
 
 recho """"""""c
 recho c""""""""
+
+# BASH BUG: spurious DEL characters appear on empty variable interpolation.
+# BASH 4.2.8(1)-release
+
+a=''
+
+recho correct "$a" # correct empty output line
+recho correct "$a""$a" # correct empty output line
+recho correct "$a""$a""$a" # correct empty output line
+recho XwrongX "$a""$a""$a""$a" # spurious two DEL chars appear at line end
+recho correct a"$a" # correct single "a" on line
+recho XwrongX a"$a""$a" # spurious DEL char appears at line end
+recho correct a"$a$a" # correct single "a" on line
+recho correct a"$a$a$a$a" # correct single "a" on line

tests/trap.right

@@ -75,6 +75,16 @@ command substitution
 trap: 8
 +[9] echo 4
 4
+exit subshell 1
+current shell
+exit subshell 2
+current shell
+current shell
+current shell
+outside 1
+outside 2
+outside 3
+outside 4
 caught a child death
 caught a child death
 caught a child death

tests/trap.tests

@@ -68,6 +68,8 @@ trap '' USR2
 
 ${THIS_SH} ./trap3.sub
 
+${THIS_SH} ./trap4.sub
+
 #
 # show that setting a trap on SIGCHLD is not disastrous.
 #

tests/trap4.sub

@@ -0,0 +1,17 @@
+# make sure subshells at the end of pipelines run any exit traps they set
+
+: | { trap 'echo exit subshell 1' EXIT; exit; }; echo current shell
+
+: | { trap 'echo exit subshell 2' EXIT; exit; }; echo current shell
+
+: | { trap 'echo exit subshell 3' EXIT; exit; } | : ; echo current shell
+
+: | { trap 'echo exit subshell 4' EXIT; exit; } | : ; echo current shell
+
+trap 'echo inherited exit trap' EXIT
+: | { exit; } ; echo outside 1
+: | ( exit; ) ; echo outside 2
+: | { exit; } | : ; echo outside 3
+: | ( exit; ) | : ; echo outside 4
+
+trap - EXIT

tests/varenv.right

@@ -60,6 +60,10 @@ FIN: asdf fdsa, asdf fdsa
 g: v = , w =
 f: v = , w =
 FIN: v = two, w = one
+declare -Ar FOOBAR='([foo]="bar" )'
+declare -Ar FOOBAR='([foo]="bar" )'
+declare -ar FOOBAR2='([0]="bar")'
+declare -ar FOOBAR2='([0]="bar")'
 a=z
 a=b
 a=z

tests/varenv.sh

@@ -208,5 +208,8 @@ $THIS_SH ./varenv3.sub
 # scoping problems with declare -g through bash-4.2
 ${THIS_SH} ./varenv4.sub
 
+# more scoping and declaration problems with -g and arrays through bash-4.2
+${THIS_SH} ./varenv5.sub
+
 # make sure variable scoping is done right
 tt() { typeset a=b;echo a=$a; };a=z;echo a=$a;tt;echo a=$a

tests/varenv5.sub

@@ -0,0 +1,16 @@
+function foobar {
+   declare -rgA FOOBAR=([foo]=bar)
+   declare -p FOOBAR
+}
+foobar
+declare -p FOOBAR
+
+unset -f foobar
+
+foobar() {
+   declare -rga FOOBAR2=([foo]=bar)
+   declare -p FOOBAR2
+}
+
+foobar
+declare -p FOOBAR2