OSX/Keychain Circle Notification/NSString+compactDescription.m

   1 /*
   2  * Copyright (c) 2013-2014 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 #import "NSString+compactDescription.h"
  26
  27 @implementation NSString (compactDescription)
  28
  29 -(NSString*)compactDescription
  30 {
  31         static NSCharacterSet *forceQuotes = nil;
  32         static dispatch_once_t setup;
  33         dispatch_once(&setup, ^{
  34                 forceQuotes = [NSCharacterSet characterSetWithCharactersInString:@"\"' \t\n\r="];
  35         });
  36
  37         if ([self rangeOfCharacterFromSet:forceQuotes].location != NSNotFound) {
  38                 NSString *escaped = [self stringByReplacingOccurrencesOfString:@"\\" withString:@"\\\\"];
  39                 escaped = [escaped stringByReplacingOccurrencesOfString:@"\"" withString:@"\\\""];
  40                 return [NSString stringWithFormat:@"\"%@\"", escaped];
  41         } else {
  42                 return self;
  43         }
  44 }
  45
  46 @end