[gentoo-commits] proj/libbash:master commit in: bashast/, bashast/gunit/

["Petteri Räty" <betelgeuse@gentoo.org>]

commit:     2dc5af830837a30b83a74c8ed4e918a3d7c5f3c3
Author:     Mu Qiao <qiaomuf <AT> gentoo <DOT> org>
AuthorDate: Thu Jul 21 09:20:13 2011 +0000
Commit:     Petteri Räty <betelgeuse <AT> gentoo <DOT> org>
CommitDate: Tue Aug  2 07:46:29 2011 +0000
URL:        http://git.overlays.gentoo.org/gitweb/?p=proj/libbash.git;a=commit;h=2dc5af83

Parser: support == in arithmetic comparison

---
 bashast/bashast.g              |   14 +++++++++++++-
 bashast/gunit/arith_main.gunit |    1 +
 2 files changed, 14 insertions(+), 1 deletions(-)

diff --git a/bashast/bashast.g b/bashast/bashast.g
index 7bb8a8b..fee25b6 100644
--- a/bashast/bashast.g
+++ b/bashast/bashast.g
@@ -113,6 +113,7 @@ tokens{
 	MINUS_SIGN;
 
 	NOT_EQUALS;
+	EQUALS_TO;
 	BUILTIN_LOGIC;
 }
 
@@ -864,7 +865,17 @@ arithmetic
 		);
 
 arithmetic_assignment_operator
-	:	EQUALS|MUL_ASSIGN|DIVIDE_ASSIGN|MOD_ASSIGN|PLUS_ASSIGN|MINUS_ASSIGN|LSHIFT_ASSIGN|RSHIFT_ASSIGN|AND_ASSIGN|XOR_ASSIGN|OR_ASSIGN;
+	:	{LA(1) == EQUALS && LA(2) != EQUALS}? => EQUALS
+	|	MUL_ASSIGN
+	|	DIVIDE_ASSIGN
+	|	MOD_ASSIGN
+	|	PLUS_ASSIGN
+	|	MINUS_ASSIGN
+	|	LSHIFT_ASSIGN
+	|	RSHIFT_ASSIGN
+	|	AND_ASSIGN
+	|	XOR_ASSIGN
+	|	OR_ASSIGN;
 
 arithmetic_variable_reference
 	:	variable_reference -> ^(VAR_REF variable_reference);
@@ -910,6 +921,7 @@ compare_operator
 	|	GEQ
 	|	LESS_THAN
 	|	GREATER_THAN
+	|	EQUALS EQUALS -> EQUALS_TO
 	|	BANG EQUALS -> NOT_EQUALS;
 bitwiseand
 	:	compare (AMP^ BLANK!? compare)*;

diff --git a/bashast/gunit/arith_main.gunit b/bashast/gunit/arith_main.gunit
index 1f1a089..5249b5a 100644
--- a/bashast/gunit/arith_main.gunit
+++ b/bashast/gunit/arith_main.gunit
@@ -80,6 +80,7 @@ arithmetics_test:
 "17" ->"17"
 "19<20" -> (< 19 20)
 "19!=20" -> (NOT_EQUALS 19 20)
+"19==20" -> (EQUALS_TO 19 20)
 
 //bitwiseand:
 "17" -> "17"