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[BUG/PRB.] VFP 9.0 FIX - FIND OR REPLACE DIALOG BOX
January 2024
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CCB
1. BUG:
In the Find or Replace Dialog Box, if we select "Match whole word", sometimes vfp will crash.
The bug occurs in vfp7, vfp8 and vfp9, it does not occur in vfp6.
The bug only occurs in DBCS (Double-Byte Character Sets) environments.
Please refer to the picture find.jpg:
2. CAUSE:
There are some BUGs in the following code.
3. RESOLUTION:
We can write some code to fix the BUG.
Label7319bc ::
cmp byte ptr [ Data947519 ] , 00h ;0x007319bc : 803d1975940000
mov dword ptr [ ebp + 0FFFFFE20h ] , 01h ;0x007319c3 : c78520feffff01000000
je Label731a9e ;0x007319cd : 0f84cb000000
mov edi , dword ptr [ ebp + 0FFFFFE48h ] ;0x007319d3 : 8bbd48feffff
test edi , edi ;0x007319d9 : 85ff
jle Label731a1a ;0x007319db : 7e3d
sub edi , dword ptr [ ebp + 0FFFFFE2Ch ] ;0x007319dd : 2bbd2cfeffff
lea eax , dword ptr [ ebp + 0FFFFFE58h ] ;0x007319e3 : 8d8558feffff
dec edi ;0x007319e9 : 4f
;
; -------------------------------------------------
; VFP 9.0 FIX - FIND OR REPLACE DIALOG BOX
; July 2014
; -------------------------------------------------
; CCB
;
; In the Find or Replace Dialog Box, if we select "Match whole word", sometimes vfp will crash.
;
; 2014/7/19, by ccb
;
test edi , edi ;0x00731a29 : 85d2
jl Label7319f3 ;0x00731a2b : 7c1c
cmp edi , dword ptr [ ebp + 108 ] ;0x00731a2d : 3b556c
jnl Label7319f3 ;0x00731a30 : 7d17
cmp edi , 0200h ;0x00731a32 : 81fa00020000
jnb Label7319f3 ;0x00731a38 : 730f
call Fun4b3f3f ;0x007319ea : e85025d8ff
test eax , eax ;0x007319ef : 85c0
jne Label731a72 ;0x007319f1 : 757f
Label7319f3 ::
mov edi , dword ptr [ ebp + 0FFFFFE48h ] ;0x007319f3 : 8bbd48feffff
push dword ptr [ ebp + 0FFFFFE44h ] ;0x007319f9 : ffb544feffff
dec edi ;0x007319ff : 4f
lea esi , dword ptr [ ebp + 0FFFFFE50h ] ;0x00731a00 : 8db550feffff
call Fun72f8cc ;0x00731a06 : e8c1deffff
movzx eax , al ;0x00731a0b : 0fb6c0
test word ptr [ 2 * eax + offset Data937360 ] , 0107h ;0x00731a0e : 66f70445607393000701
jne Label731a72 ;0x00731a18 : 7558
4. APPLIES TO:
VFP 7.0.0.9262
VFP 7.0.0.9465 (SP1)
VFP 8.0.0.2521
VFP 8.0.0.3117 (SP1)
VFP 9.0.0.2412
VFP 9.0.0.3504 (SP1)
VFP 9.0.0.4611 (SP2)
VFP 9.0.0.5015 (SP2)
VFP 9.0.0.5411 (SP2)
VFP 9.0.0.5721 (SP2)
VFP 9.0.0.5815 (SP2)
VFP 9.0.0.6303 (SP2)
VFP 9.0.0.6602 (SP2)
VFP 9.0.0.7423 (SP2)
The bug has been fixed in VFP Advanced.
5. REFERENCE WEBSITES:
1, baiyujia.com:
http://www.baiyujia.com
2, mzvfp.com:
http://www.mzvfp.com/read.php?tid=86253
http://www.mzvfp.com/read.php?tid=42354
http://www.mzvfp.com/read.php?tid=79444
6. OTHER:
For reference only, there is no guarantees.
Any questions or suggestions, please send me an email at ccb2000@163.com.
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