From d418891be2a8428a4b1edc82a7b964b0c6b34d6e Mon Sep 17 00:00:00 2001
From: Mu Qiao <qiaomuf@gentoo.org>
Date: Wed, 29 Feb 2012 16:08:04 +0800
Subject: Parser: allow double quotes in arithmetic expression

---
 bashast/bashast.g              | 2 +-
 scripts/binary_arithmetic.bash | 6 ++++++
 scripts/compound_command.bash  | 5 +++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/bashast/bashast.g b/bashast/bashast.g
index ded2fab..0be9b46 100644
--- a/bashast/bashast.g
+++ b/bashast/bashast.g
@@ -1005,7 +1005,7 @@ primary
 	|	arithmetic_expansion
 	|	LPAREN! (arithmetics) RPAREN!;
 pre_post_primary
-	:	primary;
+	:	DQUOTE!? primary DQUOTE!?;
 post_inc_dec
 	:	pre_post_primary ((BLANK) => BLANK)?
 		(
diff --git a/scripts/binary_arithmetic.bash b/scripts/binary_arithmetic.bash
index c5f018c..db7dcb7 100644
--- a/scripts/binary_arithmetic.bash
+++ b/scripts/binary_arithmetic.bash
@@ -70,3 +70,9 @@ echo "$((0&&FOO059++))"
 echo "$(( 1 == 2))"
 echo "$(( 1 == 1))"
 echo $(($((1))))
+(( a= "1+ 1"*2))
+echo $a
+FOO="3 * 2"
+echo $(( $FOO + 1 ))
+FOO="3, b = 2"
+echo $(( $FOO + 1 ))
diff --git a/scripts/compound_command.bash b/scripts/compound_command.bash
index 0db8ff8..0d3321e 100644
--- a/scripts/compound_command.bash
+++ b/scripts/compound_command.bash
@@ -356,3 +356,8 @@ for((i=1,j=2;i!=2&&j!=4;++i))
 do
     echo $i $j
 done
+python_versions=(2.6 2.7 3.0 3.1)
+for ((i = "${#python_versions[@]}"; i >= 0; i--))
+do
+    echo $i
+done
-- 
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