oleaut32: Do not skip the first decimal digit in VarParseNumFromStr().

dlls/oleaut32/tests/vartest.c

@@ -1775,6 +1775,45 @@ static void test_VarParseNumFromStrEn(void)
   EXPECT(1,NUMPRS_DECIMAL,NUMPRS_DECIMAL,2,0,0);
   EXPECT2(1,FAILDIG);
 
+  /* Skipping the integer part is not an error */
+  CONVERT(".2", NUMPRS_DECIMAL);
+  EXPECT(1,NUMPRS_DECIMAL,NUMPRS_DECIMAL,2,0,-1);
+  EXPECT2(2,FAILDIG);
+
+  /* Even zero gets an exponent (it sort of indicates 'precision') */
+  CONVERT(".0", NUMPRS_DECIMAL);
+  EXPECT(1,NUMPRS_DECIMAL,NUMPRS_DECIMAL,2,0,-1);
+  EXPECT2(0,FAILDIG);
+
+  CONVERT(".000", NUMPRS_DECIMAL);
+  EXPECT(1,NUMPRS_DECIMAL,NUMPRS_DECIMAL,4,0,-3);
+  EXPECTRGB(0,0);
+  EXPECTRGB(3,FAILDIG);
+
+  CONVERT("$.02", NUMPRS_CURRENCY|NUMPRS_DECIMAL);
+  EXPECT(1,NUMPRS_CURRENCY|NUMPRS_DECIMAL,NUMPRS_CURRENCY|NUMPRS_DECIMAL,4,0,-2);
+  EXPECT2(2,FAILDIG);
+
+  CONVERT(".001", NUMPRS_DECIMAL);
+  EXPECT(1,NUMPRS_DECIMAL,NUMPRS_DECIMAL,4,0,-3);
+  EXPECT2(1,FAILDIG);
+
+  CONVERT(".101", NUMPRS_DECIMAL);
+  EXPECT(3,NUMPRS_DECIMAL,NUMPRS_DECIMAL,4,0,-3);
+  EXPECT2(1,0);
+  EXPECTRGB(2,1);
+  EXPECTRGB(3,FAILDIG);
+
+  CONVERT(".30", NUMPRS_DECIMAL);
+  EXPECT(1,NUMPRS_DECIMAL,NUMPRS_DECIMAL,3,0,-1);
+  /* See the NUMPRS_THOUSANDS comment about trailing zeroes */
+  EXPECTRGB(0,3);
+  EXPECTRGB(2,FAILDIG);
+
+  /* But skipping both the integer and decimal part is not allowed */
+  CONVERT(".", NUMPRS_DECIMAL);
+  EXPECTFAIL;
+
   /* Consumes only one decimal point */
   CONVERT("1.1.", NUMPRS_DECIMAL);
   EXPECT(2,NUMPRS_DECIMAL,NUMPRS_DECIMAL,3,0,-1);
@@ -2131,6 +2170,14 @@ static void test_VarParseNumFromStrFr(void)
   CONVERT("1.2", NUMPRS_DECIMAL);
   EXPECT(1,NUMPRS_DECIMAL,0,1,0,0);
   EXPECT2(1,FAILDIG);
+
+  /* The integer part can still be omitted */
+  CONVERT(",2", NUMPRS_DECIMAL);
+  EXPECT(1,NUMPRS_DECIMAL,NUMPRS_DECIMAL,2,0,-1);
+  EXPECT2(2,FAILDIG);
+
+  CONVERT(".2", NUMPRS_DECIMAL);
+  EXPECTFAIL;
 }
 
 static void test_VarParseNumFromStrMisc(void)

dlls/oleaut32/variant.c

@@ -1633,7 +1633,7 @@ HRESULT WINAPI VarParseNumFromStr(const OLECHAR *lpszStr, LCID lcid, ULONG dwFla
       /* If we have no digits so far, skip leading zeros */
       if (!pNumprs->cDig)
       {
-        while (lpszStr[1] == '0')
+        while (*lpszStr == '0')
         {
           dwState |= B_LEADING_ZERO;
           cchUsed++;