| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See http://swift.org/LICENSE.txt for license information |
| // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| |
| import CoreFoundation |
| |
| extension ISO8601DateFormatter { |
| |
| public struct Options : OptionSet { |
| |
| public private(set) var rawValue: UInt |
| |
| public init(rawValue: UInt) { self.rawValue = rawValue } |
| |
| public static var withYear = ISO8601DateFormatter.Options(rawValue: 1 << 0) |
| |
| public static var withMonth = ISO8601DateFormatter.Options(rawValue: 1 << 1) |
| |
| public static var withWeekOfYear = ISO8601DateFormatter.Options(rawValue: 1 << 2) |
| |
| public static var withDay = ISO8601DateFormatter.Options(rawValue: 1 << 4) |
| |
| public static var withTime = ISO8601DateFormatter.Options(rawValue: 1 << 5) |
| |
| public static var withTimeZone = ISO8601DateFormatter.Options(rawValue: 1 << 6) |
| |
| public static var withSpaceBetweenDateAndTime = ISO8601DateFormatter.Options(rawValue: 1 << 7) |
| |
| public static var withDashSeparatorInDate = ISO8601DateFormatter.Options(rawValue: 1 << 8) |
| |
| public static var withColonSeparatorInTime = ISO8601DateFormatter.Options(rawValue: 1 << 9) |
| |
| public static var withColonSeparatorInTimeZone = ISO8601DateFormatter.Options(rawValue: 1 << 10) |
| |
| public static var withFullDate = ISO8601DateFormatter.Options(rawValue: withYear.rawValue + withMonth.rawValue + withDay.rawValue + withDashSeparatorInDate.rawValue) |
| |
| public static var withFullTime = ISO8601DateFormatter.Options(rawValue: withTime.rawValue + withTimeZone.rawValue + withColonSeparatorInTime.rawValue + withColonSeparatorInTimeZone.rawValue) |
| |
| public static var withInternetDateTime = ISO8601DateFormatter.Options(rawValue: withFullDate.rawValue + withFullTime.rawValue) |
| } |
| |
| } |
| |
| open class ISO8601DateFormatter : Formatter, NSSecureCoding { |
| |
| typealias CFType = CFDateFormatter |
| private var __cfObject: CFType? |
| private var _cfObject: CFType { |
| guard let obj = __cfObject else { |
| #if os(OSX) || os(iOS) |
| let format = CFISO8601DateFormatOptions(rawValue: formatOptions.rawValue) |
| #else |
| let format = CFISO8601DateFormatOptions(self.formatOptions.rawValue) |
| #endif |
| let obj = CFDateFormatterCreateISO8601Formatter(kCFAllocatorSystemDefault, format)! |
| CFDateFormatterSetProperty(obj, kCFDateFormatterTimeZone, timeZone._cfObject) |
| __cfObject = obj |
| return obj |
| } |
| return obj |
| } |
| |
| /* Please note that there can be a significant performance cost when resetting these properties. Resetting each property can result in regenerating the entire CFDateFormatterRef, which can be very expensive. */ |
| |
| open var timeZone: TimeZone! { willSet { _reset() } } |
| |
| open var formatOptions: ISO8601DateFormatter.Options { willSet { _reset() } } |
| |
| public override init() { |
| timeZone = TimeZone(identifier: "GMT") |
| formatOptions = [.withInternetDateTime, .withDashSeparatorInDate, .withColonSeparatorInTime, .withColonSeparatorInTimeZone] |
| super.init() |
| } |
| |
| public required init?(coder aDecoder: NSCoder) { NSUnimplemented() } |
| open override func encode(with aCoder: NSCoder) { NSUnimplemented() } |
| public static var supportsSecureCoding: Bool { return true } |
| |
| open func string(from date: Date) -> String { |
| return CFDateFormatterCreateStringWithDate(kCFAllocatorSystemDefault, _cfObject, date._cfObject)._swiftObject |
| } |
| |
| open func date(from string: String) -> Date? { |
| |
| var range = CFRange(location: 0, length: string.length) |
| let date = withUnsafeMutablePointer(to: &range) { (rangep: UnsafeMutablePointer<CFRange>) -> Date? in |
| guard let res = CFDateFormatterCreateDateFromString(kCFAllocatorSystemDefault, _cfObject, string._cfObject, rangep) else { |
| return nil |
| } |
| return res._swiftObject |
| } |
| return date |
| |
| } |
| |
| open class func string(from date: Date, timeZone: TimeZone, formatOptions: ISO8601DateFormatter.Options = []) -> String { |
| |
| #if os(OSX) || os(iOS) |
| let format = CFISO8601DateFormatOptions(rawValue: formatOptions.rawValue) |
| #else |
| let format = CFISO8601DateFormatOptions(formatOptions.rawValue) |
| #endif |
| |
| let obj = CFDateFormatterCreateISO8601Formatter(kCFAllocatorSystemDefault, format) |
| CFDateFormatterSetProperty(obj, kCFDateFormatterTimeZone, timeZone._cfObject) |
| return CFDateFormatterCreateStringWithDate(kCFAllocatorSystemDefault, obj, date._cfObject)._swiftObject |
| |
| } |
| |
| private func _reset() { |
| __cfObject = nil |
| } |
| |
| } |