-----------------------------------------------------------------------------------------------------------
[BUG/PRB.] VFP 9.0 FIX - THE DEFAULT DELIMITERS FOR THE GETWORDNUM() AND GETWORDCOUNT() FUNCTIONS
January 2024
-----------------------------------------------------------------------------------------------------------
CCB
1. BUG:
In vfp9 (and vfp7, vfp8), the default delimiters are space, tab, and line feed for the GETWORDNUM() and GETWORDCOUNT() functions,
now the default delimiters are space, tab, carriage return, and line feed for the GETWORDNUM() and GETWORDCOUNT() functions.
There is the bug for the WORDNUM() and WORDS() functions in the library file foxtools.fll.
The bug was reported by Tony Vignone.
2. CAUSE:
There are some BUGs in the following code.
3. RESOLUTION:
We can write some code to fix the BUG.
Fun759f9d :: ; proc near
push ecx ;0x00759f9d : 51
push esi ;0x00759f9e : 56
push edi ;0x00759f9f : 57
mov esi , ecx ;0x00759fa0 : 8bf1
mov ecx , dword ptr [ esi + 8 ] ;0x00759fa2 : 8b4e08
mov edi , eax ;0x00759fa5 : 8bf8
mov eax , dword ptr [ esi + 32 ] ;0x00759fa7 : 8b4620
pushd 00h ;0x00759faa : 6a00
inc ecx ;0x00759fac : 41
push eax ;0x00759fad : 50
call Fun42c2c4 ;0x00759fae : e81123cdff
test edi , edi ;0x00759fb3 : 85ff
mov ecx , dword ptr [ esi + 32 ] ;0x00759fb5 : 8b4e20
mov edx , dword ptr [ecx] ;0x00759fb8 : 8b11
mov eax , dword ptr [ esi + 8 ] ;0x00759fba : 8b4608
mov byte ptr [ eax + edx ] , 00h ;0x00759fbd : c6041000
je Label759ffd ;0x00759fc1 : 743a
imul edi , edi , 02Ch ;0x00759fc3 : 6bff2c
add esi , edi ;0x00759fc6 : 03f7
mov eax , esi ;0x00759fc8 : 8bc6
call Fun42371d ;0x00759fca : e84e97ccff
cmp byte ptr [esi] , 048h ;0x00759fcf : 803e48
je Label759fde ;0x00759fd2 : 740a
mov ecx , 0385h ;0x00759fd4 : b985030000
call Fun544742 ;0x00759fd9 : e864a7deff
Label759fde ::
mov ecx , dword ptr [ esi + 8 ] ;0x00759fde : 8b4e08
mov edx , dword ptr [ esi + 32 ] ;0x00759fe1 : 8b5620
pushd 00h ;0x00759fe4 : 6a00
inc ecx ;0x00759fe6 : 41
push edx ;0x00759fe7 : 52
call Fun42c2c4 ;0x00759fe8 : e8d722cdff
mov eax , dword ptr [ esi + 32 ] ;0x00759fed : 8b4620
mov eax , dword ptr [eax] ;0x00759ff0 : 8b00
mov ecx , dword ptr [ esi + 8 ] ;0x00759ff2 : 8b4e08
mov byte ptr [ eax + ecx ] , 00h ;0x00759ff5 : c6040800
pop edi ;0x00759ff9 : 5f
pop esi ;0x00759ffa : 5e
pop ecx ;0x00759ffb : 59
ret ;0x00759ffc : c3
Label759ffd ::
pop edi ;0x00759ffd : 5f
mov eax , offset Data928eac ;0x00759ffe : b8ac8e9200
;
; ------------------------------------------------------------------------------------------------
; VFP 9.0 FIX - THE DEFAULT DELIMITERS FOR THE GETWORDNUM() AND GETWORDCOUNT() FUNCTIONS
; May 2021
; ------------------------------------------------------------------------------------------------
; CCB
;
; In vfp9, the default delimiters are space, tab, and line feed for the GETWORDNUM() and GETWORDCOUNT() functions,
; now the default delimiters are space, tab, carriage return, and line feed for the GETWORDNUM() and GETWORDCOUNT() functions.
;
; 2021/5/18, by ccb
;
; mov dword ptr [eax] , 0A0D0920h
pop esi ;0x0075a003 : 5e
pop ecx ;0x0075a004 : 59
ret ;0x0075a005 : c3
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, foxite.com:
https://www.foxite.com/archives/getwordnum-bug-0000482701.htm
6. OTHER:
For reference only, there is no guarantees.
Any questions or suggestions, please send me an email at ccb2000@163.com.
|