commit bash-20141031 snapshot

tests/array.right

@@ -411,3 +411,24 @@ one
 two
 two
 ./array17.sub: line 76: ~ : syntax error: operand expected (error token is "~ ")
+1
+argv[1] = <>
+argv[2] = <>
+argv[3] = <>
+argv[1] = <bar>
+argv[1] = <-->
+argv[1] = <>
+argv[1] = <qux>
+argv[1] = <->
+argv[2] = <->
+argv[1] = <  >
+argv[1] = <>
+argv[2] = <>
+argv[3] = <>
+argv[1] = <bar>
+argv[1] = <-->
+argv[1] = <>
+argv[1] = <qux>
+argv[1] = <->
+argv[2] = <->
+argv[1] = <  >

tests/array.tests

@@ -402,3 +402,5 @@ ${THIS_SH} ./array15.sub
 ${THIS_SH} ./array16.sub
 
 ${THIS_SH} ./array17.sub
+
+${THIS_SH} ./array18.sub

tests/array18.sub

@@ -0,0 +1,34 @@
+# arrays referenced using @ subscript and positional parameters should behave
+# the same way
+
+foo=(0 0 0); [[ -z ${foo[@]#0} ]]; echo $?
+
+recho "${foo[@]#0}"
+bar=${foo[@]#0}
+recho bar
+recho $bar
+recho -$bar-
+recho "$bar"
+
+qux="${foo[@]#0}"
+recho qux
+recho $qux
+recho -$qux-
+recho "$qux"
+
+unset foo qux bar
+
+set -- 0 0 0
+
+recho "${@#0}"
+bar=${@#0}
+recho bar
+recho $bar
+recho -$bar-
+recho "$bar"
+
+qux="${@#0}"
+recho qux
+recho $qux
+recho -$qux-
+recho "$qux"

tests/dollar-at-star

@@ -216,6 +216,7 @@ ${THIS_SH} ./dollar-at-star1.sub
 ${THIS_SH} ./dollar-at-star2.sub
 ${THIS_SH} ./dollar-at-star3.sub
 ${THIS_SH} ./dollar-at-star4.sub
+${THIS_SH} ./dollar-at-star5.sub
 
 # tests for special expansion of "$*" and "${array[*]}" when used with other
 # expansions -- bugs through bash-2.05b

tests/dollar-at-star3.sub

@@ -3,9 +3,35 @@ unset f ; f=abcd
 first_char=${f[@]:0:1}
 recho $first_char
 
+first_char=${f[0]:0:1}
+recho $first_char
+
+first_char=${f:0:1}
+recho $first_char
+
 first_char="${f[@]:0:1}"
 recho $first_char
 
+first_char="${f[@]:0:1}"
+recho $first_char
+
+first_char="${f[0]:0:1}"
+recho $first_char
+
+first_char="${f:0:1}"
+recho $first_char
+
+unset f;
+f=( one two three )
+first_word=${f[@]:0:1}
+recho $first_word
+
+first_word=${f[0]:0:1}
+recho $first_word
+
+first_word=${f:0:1}
+recho $first_word
+
 unset f;
 f=( one two three )
 first_word=${f[@]:0:1}
@@ -15,3 +41,4 @@ set -- abc def ghi
 
 printf '<%s> ' "123 $@ 456"; echo
 printf '<%s> ' "123 $@\ 456"; echo
+

tests/dollar-at-star4.sub

@@ -81,4 +81,17 @@ recho ${foo=$@}
 recho "$foo"
 
 shift $#
-unset foo
+unset foo x
+
+set -- a b
+x=abc
+
+IFS=
+printf "<%s>\n" ${x#$*}
+printf "<%s>\n" "${x#$*}"
+
+x=abcd
+set a c
+IFS='?'
+printf "<%s>\n" ${x#$*}
+printf "<%s>\n" "${x#$*}"

tests/dollar-at-star5.sub

@@ -0,0 +1,53 @@
+# testing various combinations of quoted and unquoted expansions of $@, and
+# whether they generate empty words after expansion
+
+n() { echo "$#"; }
+
+n "$@"
+n ${foo-"$@"}
+n "${foo-$@}"
+
+n ""$@
+n """$@"
+
+n $(true)$@
+n "$(true)$@"
+n "$(true)$@"
+n "$(true)""$@"
+
+n $xxx$@
+n "$xxx$@"
+n $xxx"$@"
+n "$xxx""$@"
+
+recho $xxx"$@"
+echo after 1
+
+recho "$xxx$@"
+echo after 2
+
+recho ${foo:-$xxx"$@"}
+echo after 3
+
+# this is where these things start to differ
+echo same as 1
+recho "${foo:-$xxx"$@"}"
+echo same as 2
+recho "${foo:-$xxx$@}"
+
+echo null fields
+recho ""$@
+recho """$@"
+
+echo null fields in rhs
+echo null string with unquoted '$@'
+recho ${foo:-""$@}
+echo null string with quoted '$@'
+recho ${foo:-"""$@"}
+
+echo assignment
+recho "${foo=$@}"
+echo variable
+recho "$foo"
+echo dollar-at
+recho "${@}"

tests/dollar.right

@@ -158,6 +158,14 @@ ok at 8
 ok at 9
 argv[1] = <a>
 argv[1] = <a>
+argv[1] = <a>
+argv[1] = <a>
+argv[1] = <a>
+argv[1] = <a>
+argv[1] = <a>
+argv[1] = <one>
+argv[1] = <o>
+argv[1] = <o>
 argv[1] = <one>
 <123 abc> <def> <ghi 456> 
 <123 abc> <def> <ghi\ 456> 
@@ -185,6 +193,42 @@ argv[1] = <abcd>
 argv[1] = <a>
 argv[2] = <b>
 argv[1] = <a b>
+<c>
+<c>
+<d>
+<d>
+0
+0
+1
+1
+1
+0
+0
+0
+1
+0
+0
+0
+1
+after 1
+after 2
+after 3
+same as 1
+argv[1] = <>
+same as 2
+argv[1] = <>
+null fields
+argv[1] = <>
+argv[1] = <>
+null fields in rhs
+null string with unquoted $@
+argv[1] = <>
+null string with quoted $@
+assignment
+argv[1] = <>
+variable
+argv[1] = <>
+dollar-at
 xa|xb|xc
 xa|xb|xc
 a|b|c