| // |
| // NSString+RACKeyPathUtilities.m |
| // ReactiveCocoa |
| // |
| // Created by Uri Baghin on 05/05/2013. |
| // Copyright (c) 2013 GitHub, Inc. All rights reserved. |
| // |
| |
| #import "NSString+RACKeyPathUtilities.h" |
| |
| @implementation NSString (RACKeyPathUtilities) |
| |
| - (NSArray *)rac_keyPathComponents { |
| if (self.length == 0) { |
| return nil; |
| } |
| return [self componentsSeparatedByString:@"."]; |
| } |
| |
| - (NSString *)rac_keyPathByDeletingLastKeyPathComponent { |
| NSUInteger lastDotIndex = [self rangeOfString:@"." options:NSBackwardsSearch].location; |
| if (lastDotIndex == NSNotFound) { |
| return nil; |
| } |
| return [self substringToIndex:lastDotIndex]; |
| } |
| |
| - (NSString *)rac_keyPathByDeletingFirstKeyPathComponent { |
| NSUInteger firstDotIndex = [self rangeOfString:@"."].location; |
| if (firstDotIndex == NSNotFound) { |
| return nil; |
| } |
| return [self substringFromIndex:firstDotIndex + 1]; |
| } |
| |
| @end |
