--- esl.py-	2016-09-16 00:00:00.000000000 +0900
+++ esl.py	2016-09-17 00:00:00.000000000 +0900
@@ -292,7 +292,7 @@ def es_split(s):
 		[ 2, '>', [ '&&' ] ],
 		[ 2, '>', [ '||' ] ],
 		[ 3, '<', [ '?', ':' ] ],
-		[ 2, '<', [ '=', '+=', '-=', '*=', '/=', '%=', '&=', '|=', '^=', '~=', '>>=', '<<=' ] ],
+		[ 2, '<', [ '=', '+=', '-=', '*=', '/=', '%=', '&=', '|=', '^=', '>>=', '<<=' ] ],
 		[ 2, '>', [ ',' ] ], # ...
 	]
 
@@ -416,6 +416,10 @@ def do_op1(v, a, info):
 	a = do_expr(a, info)
 	if v == '-':
 		return -a
+	if v == '!':
+		return not a
+	if v == '~':
+		return ~a
 	if v == '++':
 		return do_set(oa, a+1, info)
 	if v == '--':
@@ -441,6 +445,30 @@ def do_op2(v, a, b, info):
 	if v == '-=':
 		a -= b
 		return do_set(oa, a, info)
+	if v == '*=':
+		a *= b
+		return do_set(oa, a, info)
+	if v == '/=':
+		a /= b
+		return do_set(oa, a, info)
+	if v == '%=':
+		a %= b
+		return do_set(oa, a, info)
+	if v == '&=':
+		a &= b
+		return do_set(oa, a, info)
+	if v == '|=':
+		a |= b
+		return do_set(oa, a, info)
+	if v == '^=':
+		a ^= b
+		return do_set(oa, a, info)
+	if v == '>>=':
+		a >>= b
+		return do_set(oa, a, info)
+	if v == '<<=':
+		a <<= b
+		return do_set(oa, a, info)
 
 	if v == '+':
 		return a + b
@@ -450,6 +478,12 @@ def do_op2(v, a, b, info):
 		return a * b
 	if v == '/':
 		return a / b
+	if v == '%':
+		return a % b
+	if v == '<<':
+		return a << b
+	if v == '>>':
+		return a >> b
 	if v == '==':
 		return a == b
 	if v == '!=':
@@ -462,6 +496,16 @@ def do_op2(v, a, b, info):
 		return a >= b
 	if v == '>':
 		return a > b
+	if v == '&':
+		return a & b
+	if v == '^':
+		return a ^ b
+	if v == '|':
+		return a | b
+	if v == '&&':
+		return a and b
+	if v == '||':
+		return a or b
 	if v == ',':
 		return b
 
@@ -501,6 +545,8 @@ def do_kwd(v, expr, info):
 	if v == 'while':
 		while do_expr( expr[2], info ):
 			do_expr( expr[3], info )
+			if 'ret' in info:
+				break
 			if was_flags(info, 'break'):
 				break
 			was_flags(info, 'continue')
@@ -514,6 +560,8 @@ def do_kwd(v, expr, info):
 		do_expr( args[0], info )
 		while do_expr( args[1], info ):
 			do_expr( expr[3], info )
+			if 'ret' in info:
+				break
 			if was_flags(info, 'break'):
 				break
 			was_flags(info, 'continue')