[Lazarus] How to determine the file extension to use

[waldo kitty]

Vincent Snijders wrote:
> waldo kitty schreef:
>>
>> doesn't the above do the "IFDEF" thing that you said you didn't want 
>> to do? ;) :lol:
> 
> That is correct, let the library do the IFDEF, so you don't have to do it.

:) but i thought the idea was for IFDEF to not be used at all... maybe i misread 
or simply misunderstood...

>> one must also remember that .exe is not the only executable extension 
>> on windows, OS/2 and DOS platforms... there is also .com... i must 
>> also ask, are not shell scripts "executable" or are we looking solely 
>> at binary executables?
> 
> That depends on the purpose. FPC cannot create .com files, so for 
> example the file name of a fpc executable is 
> ExtractFileNameWithoutExt('projectfilename.lpi')+GetExeExt;

sure, fpc cannot create .com files but i still can and do for small quick items 
;)  the point being that .exe is not the only executables on these platforms...

>> seems to me that a more generic GetFileExt type function would be 
>> better... one that might also check the linux file permissions to 
>> determine if the file is executable or not... i have numerous *nix 
>> executable files with and without extensions on them... checking the 
>> perms is the only way to know if they can will start straight up or if 
>> they must be given a kickstart (ie: sh foo.sh or php foo.php or even 
>> perl foo.pl) ;)
> 
> And that is why there is 
> http://lazarus-ccr.sourceforge.net/docs/lcl/fileutil/fileisexecutable.html

hummm... and that works on all platforms? not just *nix? i wonder if it, too, 
looks at the file's extension on non-*nix platforms? ;)