algo for stripping the file name from a full path - Forums

...improbable string "\filename.exe",0.

Actually that isn't a very improbably string. I use paths like "\filename.txt" all the time when saving stuff in my editor. If you make a routine for getting at the filename of a path, you might as well make it work with "realistic input" instead of just claiming "this was made for full paths".

Posted on 2003-04-08 02:05:00 by f0dder

algo for stripping the file name from a full path

I don't see what the big deal is, John suggested a simple solution if you want it for both full paths and file names without paths. Just put a condition on the trailing INC EAX.

The untested INC EAX is only a problem with a bare file name as it increments past the last "\" location for the return address so it will handle \partial\file\names\fine.

Regards,

hutch@movsd.com

Posted on 2003-04-08 03:30:52 by hutch--

algo for stripping the file name from a full path

Here is the tweaked version that will handle bare file names as well.



FileFromPath2 proc lppath:DWORD



    mov ecx, lppath

  strt:

    mov eax, ecx                ; reset EAX to ECX

  @@:

    inc ecx

    cmp BYTE PTR [ecx], "\"     ; test if "\"

    je strt                     ; jump to reset of EAX

    cmp BYTE PTR [ecx], 0

    jne @B                      ; exit on zero



    cmp eax, lppath

    je @F

    inc eax                     ; inc EAX if "\" in string

  @@:



    ret



FileFromPath2 endp

Regards,

hutch@movsd.com

Posted on 2003-04-09 05:12:51 by hutch--

algo for stripping the file name from a full path

thumbs up, hutch!
(havent tested it, assume it works ^_^)

Posted on 2003-04-09 05:29:56 by f0dder

algo for stripping the file name from a full path

thumbs down, hutch!
The last three lines aren't needed
Just take a look of my code

Posted on 2003-04-09 07:21:18 by lingo12

algo for stripping the file name from a full path

How about creating a LONG directory ?
Here is how to do it in C:



char *p;

p = directory;

while (*p)

{

	while (*p != '\\' && *p) p++;

	if (!*p)

	{

		CreateDirectory(directory,NULL);

	}

	else

	{

		*p=0;

		CreateDirectory(directory,NULL);

		*p++ = '\\';

	}

}

How much bytes in ASM ?

Posted on 2003-04-09 13:05:22 by MCoder

algo for stripping the file name from a full path

Lingo,

interesting idea, when I have a bit more brain I will try and digest it.

Regards,

hutch@movsd.com

Posted on 2003-04-09 20:33:17 by hutch--

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