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Re: String encoding question

From: Fred Kiefer
Subject: Re: String encoding question
Date: Tue, 25 Nov 2003 01:42:18 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030821

Björn Giesler wrote:
I'm trying to read vcard files (example attached) exported from Apple's Address 
Book application. I have to use [NSString initWithData:encoding:] on the file 
contents, because that's what Apple's interface specifies.

I've got no idea which encoding these things are in... they look like unicode, because 
there are two bytes for each character, but when I use NSUnicodeStringEncoding, the 
result is garbage (when dumped with NSLog()). When I use NSAsciiStringEncoding, NSLog() 
prints the contents just fine, but the resulting string keeps the extra bytes ([str 
length] returns 22 for "BEGIN:VCARD"), so I can't parse the file properly.

Any ideas? I'm thoroughly lost with this encoding stuff.

Not sure what you did try, but the following code works for me:

#include <Foundation/NSAutoreleasePool.h>
#include <Foundation/NSData.h>
#include <Foundation/NSString.h>

int main (int argc, const char *argv[])
  NSData *data;
  NSString *string;

  data = [NSData dataWithContentsOfFile:
  string = [[NSString alloc] initWithData: data
                             encoding: NSUnicodeStringEncoding];
  NSLog(@"Did read: %@", string);
  return 0;

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