From 9b41bb0345a98d23778c91da692a5a0e97cecfc4 Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Wed, 1 Oct 2014 10:45:44 +0200
Subject: [PATCH] jscript: Added support for '-' CC expression.

---
 dlls/jscript/cc_parser.y | 3 +++
 dlls/jscript/tests/cc.js | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/dlls/jscript/cc_parser.y b/dlls/jscript/cc_parser.y
index 83d8b4e87ec..d25022b8060 100644
--- a/dlls/jscript/cc_parser.y
+++ b/dlls/jscript/cc_parser.y
@@ -66,6 +66,7 @@ static int cc_parser_lex(void *lval, parser_ctx_t *ctx)
     case '(':
     case ')':
     case '+':
+    case '-':
     case '*':
     case '/':
         return *ctx->ptr++;
@@ -105,6 +106,8 @@ CCAdditiveExpression
     : CCMultiplicativeExpression    { $$ = $1; }
     | CCAdditiveExpression '+' CCMultiplicativeExpression
                                     { $$ = ccval_num(get_ccnum($1) + get_ccnum($3)); }
+    | CCAdditiveExpression '-' CCMultiplicativeExpression
+                                    { $$ = ccval_num(get_ccnum($1) - get_ccnum($3)); }
 
 CCMultiplicativeExpression
     : CCUnaryExpression             { $$ = $1; }
diff --git a/dlls/jscript/tests/cc.js b/dlls/jscript/tests/cc.js
index 32f827e63ea..7ce3682575f 100644
--- a/dlls/jscript/tests/cc.js
+++ b/dlls/jscript/tests/cc.js
@@ -140,6 +140,12 @@ ok(@test === false, "@test = " + @test);
 @set @test = (0 != true)
 ok(@test === true, "@test = " + @test);
 
+@set @test = (true-2)
+ok(@test === -1, "@test = " + @test);
+
+@set @test = (true-@_jscript)
+ok(@test === 0, "@test = " + @test);
+
 @if (false)
     this wouldn not parse
 "@end