I want to know what to do if i have some content in a text file, i wish to preprocess it by removing certain things. from the file
the text file has content as shown below
sub_401000 proc near ; CODE XREF: sub_4021FD+7Fp
; sub_403366+40Dp ...
loc_401019: ; CODE XREF: sub_401000+20j
I want to remove the content from all those lines that appear after the semicolon. There are multiple statements of different type appearin before the semicolon.
Use the split method with second argument 1 or the partition method.
how to use it can u please explain ??
Well, with split, just as the name implies you could split the string,into a list, in this case at the semicolon
>>>a='some;data'
>>>a
'some;data'
>>>a=a.split(';')
>>>a
['some','data']See string method documentation.
following is the content of a binary file
sub_401000 proc near ; CODE XREF: sub_4021FD+7Fp
; sub_403366+40Dp ...
mov eax, [esp+arg_8]
mov ecx, [esp+arg_4]
mov edx, eax
dec eax
test edx, edx
jz short loc_401023
mov edx, [esp+arg_0]
push esi
sub edx, ecx
lea esi, [eax+1]
loc_401019: ; CODE XREF: sub_401000+20j
mov al, [ecx]
mov [ecx+edx], al
inc ecx
dec esi
jnz short loc_401019
pop esi
loc_401023: ; CODE XREF: sub_401000+Dj
mov eax, [esp+arg_0]
retn
sub_401000 endp
sub_401028 proc near ; CODE XREF: sub_4014C5+3Ap
; sub_402F40+190p ...
mov eax, [esp+arg_4]
push esi
mov esi, [esp+4+arg_8]
mov ecx, esi
dec esi
test ecx, ecx
jz short loc_40104D
mov ecx, [esp+4+arg_0]
sub ecx, eax
loc_40103E: ; CODE XREF: sub_401028+23j
mov dl, [eax]
now i need t preserve everything into the new file except what appears after the semicolon, including it .IT must look as given below
sub_401000 proc near
mov eax, [esp+arg_8]
mov ecx, [esp+arg_4]
mov edx, eax
dec eax
test edx, edx
jz short loc_401023
mov edx, [esp+arg_0]
push esi
sub edx, ecx
lea esi, [eax+1]
loc_401019:
mov al, [ecx]
mov [ecx+edx], al
inc ecx
dec esi
I tried what u said but it doesnt work
It does not work is not enough info to do anything about it. Put first it to print out the lines to check you got the splitting right, then take care of saving it to file, one step at the time. When you are stuck post your efforts, remember to put code tags by pushing the CODE before pasting.
Python Syntax (Toggle Plain Text)
>>>a='some;data'
>>>a
'some;data'
>>>a=a.split(';')>>>a
I can not apply it
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