Hi all!

I was writing a CLI-Tool for Mac OS X (10.5+) that has to deal with command-line arguments which are very likely to contain non-ASCII characters.

For further processing, I convert these arguments using +[NSString stringWithCString:encoding:].

My problem is, that I couldn't find good information on how to determine the character-encoding used by the shell in which said cli-tool is running in.
What I came up with as a solution is the following:

NSDictionary *environment = [[NSProcessInfo processInfo] environment];
NSString *ianaName = [[environment objectForKey:@"LANG"] pathExtension];
NSStringEncoding encoding = CFStringConvertEncodingToNSStringEncoding(
  CFStringConvertIANACharSetNameToEncoding( (CFStringRef)ianaName ) );

NSString *someArgument = [NSString stringWithCString:argv[someIndex] encoding:encoding];

I find that a little crude, however -- which makes me think that I missed out something obvious...but what?

Is there a saner/cleaner way of achieving essentially the same?

Thanks in advance

D