Command Line Arguments Parser - HOW?

[eliran]

I made few search queries here and there, found some stuff, but mainly useless stuff. Even stuff that made me have to use another person's DLL - does it sound reasonable ?? If I'd want to use external code I'd use C++ hehe  :lol
So, after I got the command line and seperated it from my module name, how do I make something to be like the nice argv & argc of C++ ?
Please don't offer any external-dependant stuff coz I'm here to try and make original code.
If you wanna see what I got so far...

Code Select Expand


; #########################################################################
.486
.model flat, stdcall
option casemap :none   ; case sensitive
; #########################################################################
include \masm32\include\windows.inc
include \masm32\include\user32.inc
include \masm32\include\kernel32.inc

includelib \masm32\lib\user32.lib
includelib \masm32\lib\kernel32.lib
; #########################################################################
Main proto
; #########################################################################
.data
CmdLine dd 0
szModuleName db 256 dup (0)
wModuleNameSize dword 0
; #########################################################################
.code
start:
call Main
invoke ExitProcess,0

Main proc
invoke GetModuleFileName,NULL,addr szModuleName,256
mov wModuleNameSize,eax
invoke GetCommandLine ;get cmd line
mov CmdLine,eax ;store it
mov eax,wModuleNameSize
add eax,2
add CmdLine,eax
mov eax,CmdLine
.if byte ptr [eax]==0 ;no cmd line?
ret ;bad
.else
.if byte ptr [eax+1]==0 ;checking for the damn SPACE :)
ret ;bad
.else
inc eax ;it seems like a real cmd line, so we cut off the SPACE
.endif
.endif
mov CmdLine,eax
;now CmdLine has the command line (without the module name and the other crap)
ret
Main endp

end start


Have a good evning everyone !  :U

[P1]

Check the M32Lib for MASM32.

There are CommandLine ( CL ) functions in there already.  Besides, the source is there for the functions, just in case you need to modify the source for your own use.

Regards,  P1  :8)

[hutch--]

eliran,

I have seen few command line procedures that use the architecture of the old C style argv-argc although I have seen it done somewhere. The author was a young guy called "f0dder". If you are not burdened by architecture of that age you have a couple of choices to use as examples from the masm32 library, the lowest level is a procedure called "ArgByNumber" which will either pick out arguments by their number or stream arguments until you get to the end of the command line.

It is actually a left to right table driven parser and while its speed is a bit overkill for something as short as a 32k command line, it is fast and flexible and you can do what you like with arguments as you stream through them.

[eliran]

I see. I just didn't like the fact that GetCL invokes GetCommandLine each time I call it. I'll see if I can modify it. Thank you all  :clap:

[Vortex]

eliran,

Here is a set of procedures to parse command line parameters both for GUI and console applications :

http://www.masmforum.com/simple/index.php?topic=166.0

[Human]

   invoke GetCommandLineW
   invoke CommandLineToArgvW,eax,o temp
   cmp temp,2
   jne initiated
   mov esi,[eax+4]
2 means exe and 1 paran
at [eax+4] is offset of second param in unicode so do
lodsw & stosb

[Ghirai]

Check the masm32lib help file in \masm32\help, there's a commandline section.

[MichaelW]

FWIW, for the February 2003 PSDK, src\crt\stdargv.c contains the source for the standard and wildcard _setargv routines.