Epub阅读器0.0.1
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shen
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//
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// WRBookmark.m
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// WeRead (微信读书)
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// Reverse-engineered implementation reconstruction
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//
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// Detailed pseudo-code based on binary analysis (many NSString ivars,
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// WRBook, WRMPReview, NSArray, NSDictionary, NSMutableSet) and
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// contextual knowledge of WeRead's bookmark/annotation system.
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//
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#import "WRBookmark.h"
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// ---------------------------------------------------------------------------
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// Color mapping
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// ---------------------------------------------------------------------------
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static NSDictionary<NSString *, UIColor *> *sColorMap = nil;
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@implementation WRBookmark
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#pragma mark - Class Initialization
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+ (void)initialize
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{
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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sColorMap = @{
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@"yellow" : [UIColor colorWithRed:1.0 green:0.9 blue:0.3 alpha:0.4],
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@"blue" : [UIColor colorWithRed:0.3 green:0.6 blue:1.0 alpha:0.4],
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@"red" : [UIColor colorWithRed:1.0 green:0.3 blue:0.3 alpha:0.4],
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@"green" : [UIColor colorWithRed:0.3 green:0.9 blue:0.4 alpha:0.4],
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@"purple" : [UIColor colorWithRed:0.7 green:0.3 blue:0.9 alpha:0.4],
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};
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});
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}
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#pragma mark - Factory Methods
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+ (instancetype)bookmarkWithBookId:(NSString *)bookId
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chapterUid:(NSString *)chapterUid
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offset:(NSInteger)offset
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text:(NSString *)text
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type:(WRBookmarkType)type
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{
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WRBookmark *bm = [[WRBookmark alloc] init];
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bm.bookId = bookId;
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bm.chapterUid = chapterUid;
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bm.chapterOffset = offset;
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bm.markText = text;
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bm.type = type;
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bm.createTime = [[NSDate date] timeIntervalSince1970];
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bm.updateTime = bm.createTime;
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bm.isSynced = NO;
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// Generate a unique bookmark ID
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bm.bookmarkId = [[NSUUID UUID] UUIDString];
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return bm;
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}
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+ (instancetype)highlightWithBookId:(NSString *)bookId
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chapterUid:(NSString *)chapterUid
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startPos:(NSInteger)startPos
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endPos:(NSInteger)endPos
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text:(NSString *)text
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colorStyle:(NSString *)colorStyle
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{
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WRBookmark *bm = [self bookmarkWithBookId:bookId
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chapterUid:chapterUid
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offset:startPos
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text:text
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type:WRBookmarkTypeHighlight];
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bm.startPos = startPos;
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bm.endPos = endPos;
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bm.rangeLength = endPos - startPos;
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bm.colorStyle = colorStyle ?: @"yellow";
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return bm;
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}
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#pragma mark - Serialization
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- (NSDictionary *)toDictionary
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{
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NSMutableDictionary *dict = [NSMutableDictionary dictionary];
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if (_bookmarkId) dict[@"bookmarkId"] = _bookmarkId;
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if (_bookId) dict[@"bookId"] = _bookId;
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if (_chapterUid) dict[@"chapterUid"] = _chapterUid;
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dict[@"chapterOffset"] = @(_chapterOffset);
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dict[@"chapterIndex"] = @(_chapterIndex);
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if (_markText) dict[@"markText"] = _markText;
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if (_noteContent) dict[@"noteContent"] = _noteContent;
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dict[@"type"] = @(_type);
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if (_colorStyle) dict[@"colorStyle"] = _colorStyle;
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dict[@"startPos"] = @(_startPos);
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dict[@"endPos"] = @(_endPos);
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dict[@"rangeLength"] = @(_rangeLength);
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if (_anchorId) dict[@"anchorId"] = _anchorId;
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if (_rangeKey) dict[@"rangeKey"] = _rangeKey;
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dict[@"createTime"] = @(_createTime);
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dict[@"updateTime"] = @(_updateTime);
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dict[@"isSynced"] = @(_isSynced);
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if (_syncKey) dict[@"syncKey"] = _syncKey;
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if (_rangeInfo) dict[@"rangeInfo"] = _rangeInfo;
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if (_extraMetadata) dict[@"extraMetadata"] = _extraMetadata;
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if (_tags.count > 0) {
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dict[@"tags"] = [_tags allObjects];
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}
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return [dict copy];
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}
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+ (nullable instancetype)fromDictionary:(NSDictionary *)dict
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{
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if (!dict) return nil;
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WRBookmark *bm = [[WRBookmark alloc] init];
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bm.bookmarkId = dict[@"bookmarkId"];
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bm.bookId = dict[@"bookId"];
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bm.chapterUid = dict[@"chapterUid"];
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bm.chapterOffset = [dict[@"chapterOffset"] integerValue];
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bm.chapterIndex = [dict[@"chapterIndex"] integerValue];
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bm.markText = dict[@"markText"];
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bm.noteContent = dict[@"noteContent"];
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bm.type = [dict[@"type"] integerValue];
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bm.colorStyle = dict[@"colorStyle"];
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bm.startPos = [dict[@"startPos"] integerValue];
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bm.endPos = [dict[@"endPos"] integerValue];
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bm.rangeLength = [dict[@"rangeLength"] integerValue];
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bm.anchorId = dict[@"anchorId"];
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bm.rangeKey = dict[@"rangeKey"];
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bm.createTime = [dict[@"createTime"] doubleValue];
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bm.updateTime = [dict[@"updateTime"] doubleValue];
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bm.isSynced = [dict[@"isSynced"] boolValue];
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bm.syncKey = dict[@"syncKey"];
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bm.rangeInfo = dict[@"rangeInfo"];
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bm.extraMetadata = dict[@"extraMetadata"];
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NSArray *tags = dict[@"tags"];
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if (tags) {
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bm.tags = [NSMutableSet setWithArray:tags];
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}
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return bm;
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}
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- (nullable NSData *)toJSONData
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{
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NSDictionary *dict = [self toDictionary];
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return [NSJSONSerialization dataWithJSONObject:dict options:0 error:nil];
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}
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+ (nullable instancetype)fromJSONData:(NSData *)data
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{
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if (!data) return nil;
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NSError *error = nil;
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NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data
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options:0
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error:&error];
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if (!dict || ![dict isKindOfClass:[NSDictionary class]]) return nil;
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return [self fromDictionary:dict];
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}
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#pragma mark - Display
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- (NSString *)displaySummary
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{
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switch (_type) {
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case WRBookmarkTypeHighlight:
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return [NSString stringWithFormat:@"[Highlight] %@", _markText ?: @""];
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case WRBookmarkTypeUnderline:
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return [NSString stringWithFormat:@"[Underline] %@", _markText ?: @""];
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case WRBookmarkTypeMark:
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return [NSString stringWithFormat:@"[Bookmark] Chapter %@", _chapterUid ?: @""];
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case WRBookmarkTypeNote:
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return [NSString stringWithFormat:@"[Note] %@", _noteContent ?: _markText ?: @""];
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case WRBookmarkTypePencil:
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return @"[Pencil Note]";
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default:
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return _markText ?: @"";
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}
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}
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- (UIColor *)highlightUIColor
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{
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if (!_colorStyle) {
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return sColorMap[@"yellow"] ?: [UIColor yellowColor];
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}
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return sColorMap[_colorStyle] ?: [UIColor yellowColor];
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}
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#pragma mark - NSObject
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- (NSString *)description
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{
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return [NSString stringWithFormat:@"<WRBookmark: %@ type=%ld book=%@ ch=%@ '%@'>",
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_bookmarkId, (long)_type, _bookId, _chapterUid,
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[_markText substringToIndex:MIN(30, _markText.length)]];
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}
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- (BOOL)isEqual:(id)object
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{
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if (self == object) return YES;
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if (![object isKindOfClass:[WRBookmark class]]) return NO;
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WRBookmark *other = (WRBookmark *)object;
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return [self.bookmarkId isEqualToString:other.bookmarkId];
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}
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- (NSUInteger)hash
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{
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return self.bookmarkId.hash;
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}
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@end
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