Classes/NJInputPathElement.m

   1 //
   2 //  NJInputPathElement.m
   3 //  Enjoyable
   4 //
   5 //  Created by Joe Wreschnig on 3/13/13.
   6 //
   7 //
   8
   9 #include "NJInputPathElement.h"
  10
  11 @implementation NJInputPathElement {
  12     NSString *_eid;
  13 }
  14
  15 - (id)initWithName:(NSString *)name
  16                eid:(NSString *)eid
  17             parent:(NJInputPathElement *)parent {
  18     if ((self = [super init])) {
  19         self.name = name;
  20         self.parent = parent;
  21         _eid = eid;
  22     }
  23     return self;
  24 }
  25
  26 - (BOOL)isEqual:(id)object {
  27     return [object isKindOfClass:NJInputPathElement.class]
  28         && [[object uid] isEqualToString:self.uid];
  29 }
  30
  31 - (NSUInteger)hash {
  32     return self.uid.hash;
  33 }
  34
  35 - (NSString *)uid {
  36     return [NSString stringWithFormat:@"%@~%@", _parent.uid, _eid];
  37 }
  38
  39 - (NJInputPathElement *)elementForUID:(NSString *)uid {
  40     if ([uid isEqualToString:self.uid])
  41         return self;
  42     else if (![uid hasPrefix:self.uid])
  43         return nil;
  44     else {
  45         for (NJInputPathElement *elem in self.children) {
  46             NJInputPathElement *ret = [elem elementForUID:uid];
  47             if (ret)
  48                 return ret;
  49         }
  50     }
  51     return nil;
  52 }
  53
  54 @end