//
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// NSDate+Extension.h
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// SmartLock
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//
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// Created by 江欣华 on 2016/10/25.
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// Copyright © 2016年 工程锁. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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#define D_MINUTE 60
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#define D_HOUR 3600
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#define D_DAY 86400
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#define D_WEEK 604800
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#define D_YEAR 31556926
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@interface NSDate (Extension)
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+ (NSCalendar *) currentCalendar; // avoid bottlenecks
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// Relative dates from the current date
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+ (NSDate *) dateTomorrow;
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+ (NSDate *) dateYesterday;
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+ (NSDate *) dateWithDaysFromNow: (NSInteger) days;
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+ (NSDate *) dateWithDaysBeforeNow: (NSInteger) days;
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+ (NSDate *) dateWithHoursFromNow: (NSInteger) dHours;
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+ (NSDate *) dateWithHoursBeforeNow: (NSInteger) dHours;
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+ (NSDate *) dateWithMinutesFromNow: (NSInteger) dMinutes;
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+ (NSDate *) dateWithMinutesBeforeNow: (NSInteger) dMinutes;
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+ (NSDate *)date:(NSString *)datestr WithFormat:(NSString *)format;
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// Short string utilities
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- (NSString *) stringWithDateStyle: (NSDateFormatterStyle) dateStyle timeStyle: (NSDateFormatterStyle) timeStyle;
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- (NSString *) stringWithFormat: (NSString *) format;
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@property (nonatomic, readonly) NSString *shortString;
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@property (nonatomic, readonly) NSString *shortDateString;
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@property (nonatomic, readonly) NSString *shortTimeString;
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@property (nonatomic, readonly) NSString *mediumString;
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@property (nonatomic, readonly) NSString *mediumDateString;
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@property (nonatomic, readonly) NSString *mediumTimeString;
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@property (nonatomic, readonly) NSString *longString;
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@property (nonatomic, readonly) NSString *longDateString;
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@property (nonatomic, readonly) NSString *longTimeString;
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// Comparing dates
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- (BOOL) isEqualToDateIgnoringTime: (NSDate *) aDate;
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- (BOOL) isToday;
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- (BOOL) isTomorrow;
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- (BOOL) isYesterday;
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- (BOOL) isSameWeekAsDate: (NSDate *) aDate;
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- (BOOL) isThisWeek;
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- (BOOL) isNextWeek;
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- (BOOL) isLastWeek;
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- (BOOL) isSameMonthAsDate: (NSDate *) aDate;
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- (BOOL) isThisMonth;
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- (BOOL) isNextMonth;
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- (BOOL) isLastMonth;
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- (BOOL) isSameYearAsDate: (NSDate *) aDate;
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- (BOOL) isThisYear;
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- (BOOL) isNextYear;
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- (BOOL) isLastYear;
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- (BOOL) isEarlierThanDate: (NSDate *) aDate;
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- (BOOL) isLaterThanDate: (NSDate *) aDate;
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- (BOOL) isInFuture;
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- (BOOL) isInPast;
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// Date roles
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- (BOOL) isTypicallyWorkday;
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- (BOOL) isTypicallyWeekend;
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// Adjusting dates
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- (NSDate *) dateByAddingYears: (NSInteger) dYears;
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- (NSDate *) dateBySubtractingYears: (NSInteger) dYears;
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- (NSDate *) dateByAddingMonths: (NSInteger) dMonths;
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- (NSDate *) dateBySubtractingMonths: (NSInteger) dMonths;
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- (NSDate *) dateByAddingDays: (NSInteger) dDays;
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- (NSDate *) dateBySubtractingDays: (NSInteger) dDays;
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- (NSDate *) dateByAddingHours: (NSInteger) dHours;
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- (NSDate *) dateBySubtractingHours: (NSInteger) dHours;
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- (NSDate *) dateByAddingMinutes: (NSInteger) dMinutes;
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- (NSDate *) dateBySubtractingMinutes: (NSInteger) dMinutes;
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// Date extremes
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- (NSDate *) dateAtStartOfDay;
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- (NSDate *) dateAtEndOfDay;
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// Retrieving intervals
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- (NSInteger) minutesAfterDate: (NSDate *) aDate;
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- (NSInteger) minutesBeforeDate: (NSDate *) aDate;
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- (NSInteger) hoursAfterDate: (NSDate *) aDate;
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- (NSInteger) hoursBeforeDate: (NSDate *) aDate;
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- (NSInteger) daysAfterDate: (NSDate *) aDate;
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- (NSInteger) daysBeforeDate: (NSDate *) aDate;
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- (NSInteger)distanceInDaysToDate:(NSDate *)anotherDate;
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// Decomposing dates
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@property (readonly) NSInteger nearestHour;
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@property (readonly) NSInteger hour;
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@property (readonly) NSInteger minute;
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@property (readonly) NSInteger seconds;
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@property (readonly) NSInteger day;
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@property (readonly) NSInteger month;
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@property (readonly) NSInteger week;
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@property (readonly) NSInteger weekday;
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@property (readonly) NSInteger nthWeekday; // e.g. 2nd Tuesday of the month == 2
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@property (readonly) NSInteger year;
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- (NSDate *)dateWithYMD;
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- (NSDate *)dateWithFormatter:(NSString *)formatter;
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@end
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