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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| // | ||
| // ExclusionDate.swift | ||
| // RRuleSwift | ||
| // | ||
| // Created by Xin Hong on 16/3/28. | ||
| // Copyright © 2016年 Teambition. All rights reserved. | ||
| // | ||
|
|
||
| import Foundation | ||
|
|
||
| public struct ExclusionDate { | ||
| /// All exclusion dates. | ||
| public private(set) var dates = [NSDate]() | ||
| /// The unit of ExclusionDate, used to decide which exdate will be excluded. | ||
| public private(set) var unit: NSCalendarUnit! | ||
|
|
||
| public init(dates: [NSDate], unitGranularity unit: NSCalendarUnit) { | ||
| self.dates = dates | ||
| self.unit = unit | ||
| } | ||
|
|
||
| public init?(exdateString string: String, unitGranularity unit: NSCalendarUnit) { | ||
| let string = string.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet()) | ||
| guard let range = string.rangeOfString("EXDATE:") where range.startIndex == string.startIndex else { | ||
| print("error: invalid exdate string, must be started with 'EXDATE:'") | ||
| return nil | ||
| } | ||
| let exdateString = string.substringFromIndex(range.endIndex) | ||
| let exdates = exdateString.componentsSeparatedByString(",").flatMap { (dateString) -> String? in | ||
| if (dateString.isEmpty || dateString.characters.count == 0) { | ||
| return nil | ||
| } | ||
| return dateString | ||
| } | ||
|
|
||
| self.dates = exdates.flatMap({ (dateString) -> NSDate? in | ||
| return RRule.dateFormatter.dateFromString(dateString) | ||
| }) | ||
| self.unit = unit | ||
| } | ||
|
|
||
| public func toExDateString() -> String { | ||
| var exdateString = "EXDATE:" | ||
| let dateStrings = dates.map { (date) -> String in | ||
| return RRule.dateFormatter.stringFromDate(date) | ||
| } | ||
| if dateStrings.count > 0 { | ||
| exdateString += dateStrings.joinWithSeparator(",") | ||
| } | ||
|
|
||
| if exdateString.substringFromIndex(exdateString.endIndex.advancedBy(-1)) == "," { | ||
| exdateString.removeAtIndex(exdateString.endIndex.advancedBy(-1)) | ||
| } | ||
|
|
||
| return exdateString | ||
| } | ||
| } |
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