From 66ba778cadcc092b390cd867ac05c7b55c1f7968 Mon Sep 17 00:00:00 2001
From: Qian Hong <qhong@codeweavers.com>
Date: Thu, 2 Oct 2014 14:09:10 +0800
Subject: [PATCH] jscript: Ignore BOM mark in next_token.

---
 dlls/jscript/lex.c       |  2 +-
 dlls/jscript/tests/run.c | 53 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+), 1 deletion(-)

diff --git a/dlls/jscript/lex.c b/dlls/jscript/lex.c
index b4a37005764..af4b24b2b90 100644
--- a/dlls/jscript/lex.c
+++ b/dlls/jscript/lex.c
@@ -241,7 +241,7 @@ static BOOL skip_comment(parser_ctx_t *ctx)
 
 static BOOL skip_spaces(parser_ctx_t *ctx)
 {
-    while(ctx->ptr < ctx->end && isspaceW(*ctx->ptr)) {
+    while(ctx->ptr < ctx->end && (isspaceW(*ctx->ptr) || *ctx->ptr == 0xFEFF /* UTF16 BOM */)) {
         if(is_endline(*ctx->ptr++))
             ctx->nl = TRUE;
     }
diff --git a/dlls/jscript/tests/run.c b/dlls/jscript/tests/run.c
index aa1783e0599..452f8109154 100644
--- a/dlls/jscript/tests/run.c
+++ b/dlls/jscript/tests/run.c
@@ -144,6 +144,7 @@ DEFINE_EXPECT(DeleteMemberByDispID_false);
 #define DISPID_TESTOBJ_ONLYDISPID   0x2001
 #define DISPID_TESTOBJ_WITHPROP     0x2002
 
+#define JS_E_OUT_OF_MEMORY 0x800a03ec
 #define JS_E_INVALID_CHAR 0x800a03f6
 
 static const WCHAR testW[] = {'t','e','s','t',0};
@@ -1966,6 +1967,56 @@ static void test_script_exprs(void)
     testing_expr = FALSE;
 }
 
+struct bom_test
+{
+    WCHAR str[1024];
+    HRESULT hres;
+};
+
+static void run_bom_tests(void)
+{
+    BSTR src;
+    int i;
+    HRESULT hres;
+    struct bom_test bom_tests[] = {
+        {{'v','a','r',' ','a',' ','=',' ','1',';',' ','r','e','p','o','r','t','S','u','c','c','e','s','s','(',')',';','\0'}, S_OK},
+        {{0xFEFF,'v','a','r',' ','a',' ','=',' ','1',';',' ','r','e','p','o','r','t','S','u','c','c','e','s','s','(',')',';','\0'}, S_OK},
+        {{'v',0xFEFF,'a','r',' ','a',' ','=',' ','1',';',' ','r','e','p','o','r','t','S','u','c','c','e','s','s','(',')',';','\0'}, JS_E_OUT_OF_MEMORY},
+        {{'v','a','r',0xFEFF,' ','a',' ','=',' ','1',';',' ','r','e','p','o','r','t','S','u','c','c','e','s','s','(',')',';','\0'}, S_OK},
+        {{'v','a','r',' ','a',' ','=',' ','1',';',' ',0xFEFF,'r','e','p','o','r','t','S','u','c','c','e','s','s','(',')',';','\0'}, S_OK},
+        {{'v','a','r',' ','a',' ','=',' ','1',';',' ','r','e','p','o','r','t',0xFEFF,'S','u','c','c','e','s','s','(',')',';','\0'}, JS_E_OUT_OF_MEMORY},
+        {{'v','a','r',' ','a',' ','=',' ','1',';',' ','r','e','p','o','r','t','S','u','c','c','e','s','s',0xFEFF,'(',')',';','\0'}, S_OK},
+        {{'v','a','r',' ','a',' ','=',' ','1',';',' ','r','e','p','o','r','t','S','u','c','c','e','s','s','(',0xFEFF,')',';','\0'}, S_OK},
+        {{'v','a','r',' ','a',' ','=',0xFEFF,' ','1',';',' ','r','e','p','o','r','t','S','u','c','c','e','s','s','(',0xFEFF,')',';','\0'}, S_OK},
+        {{0xFEFF,'v','a','r',' ','a',' ','=',0xFEFF,0xFEFF,' ','1',';',' ','r','e','p','o','r','t','S','u','c','c','e','s','s','(',0xFEFF,')',';','\0'}, S_OK},
+        {{0}}
+    };
+
+    engine_clsid = &CLSID_JScript;
+
+    for (i = 0; bom_tests[i].str[0]; i++)
+    {
+        if(bom_tests[i].hres == S_OK)
+        {
+             SET_EXPECT(global_success_d);
+             SET_EXPECT(global_success_i);
+             src = SysAllocString(bom_tests[i].str);
+             hres = parse_script(SCRIPTITEM_GLOBALMEMBERS, src);
+             ok(hres == S_OK, "test %s failed with %08x\n", wine_dbgstr_w(src), hres);
+             SysFreeString(src);
+             CHECK_CALLED(global_success_d);
+             CHECK_CALLED(global_success_i);
+        }
+        else
+        {
+             src = SysAllocString(bom_tests[i].str);
+             hres = parse_script(SCRIPTITEM_GLOBALMEMBERS, src);
+             todo_wine ok(hres == bom_tests[i].hres, "test %s returned with %08x\n", wine_dbgstr_w(src), hres);
+             SysFreeString(src);
+        }
+    }
+}
+
 static BOOL run_tests(void)
 {
     HRESULT hres;
@@ -2259,6 +2310,8 @@ static BOOL run_tests(void)
         "Object expected",
         NULL);
 
+    run_bom_tests();
+
     return TRUE;
 }