From: David Kahurani <k.kahurani@gmail.com>
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52476
Signed-off-by: Francois Gouget <fgouget@codeweavers.com>
---
I hope the way I sent this modified patch is ok.

I added some more tests to David's patch to make sure we handle cases
where the dot is immediately followed by a 0 as well as those where it's
only the next character which is 0 (such as in the original .308).

I also tweaked the VarParseNumFromStr() patch to use *lpszStr for
consistency with other parts of that function though that's really just
cosmetic.
---
 dlls/oleaut32/tests/vartest.c | 31 +++++++++++++++++++++++++++++++
 dlls/oleaut32/variant.c       |  2 +-
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/dlls/oleaut32/tests/vartest.c b/dlls/oleaut32/tests/vartest.c
index 0a8b56bb2ee..9887fcb3100 100644
--- a/dlls/oleaut32/tests/vartest.c
+++ b/dlls/oleaut32/tests/vartest.c
@@ -1775,6 +1775,29 @@ 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);
+
+  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);
+  EXPECT2(3,FAILDIG);
+
   /* Consumes only one decimal point */
   CONVERT("1.1.", NUMPRS_DECIMAL);
   EXPECT(2,NUMPRS_DECIMAL,NUMPRS_DECIMAL,3,0,-1);
@@ -2131,6 +2154,14 @@ 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)
diff --git a/dlls/oleaut32/variant.c b/dlls/oleaut32/variant.c
index bf8f041b9c6..885082cc659 100644
--- a/dlls/oleaut32/variant.c
+++ b/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++;
--
2.30.2