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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2016 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
//
extension Formatter {
public enum Context : Int, Sendable {
// The capitalization context to be used is unknown (this is the default value).
case unknown
// The capitalization context is determined dynamically from the set {NSFormattingContextStandalone, NSFormattingContextBeginningOfSentence, NSFormattingContextMiddleOfSentence}. For example, if a date is placed at the beginning of a sentence, NSFormattingContextBeginningOfSentence is used to format the string automatically. When this context is used, the formatter will return a string proxy that works like a normal string in most cases. After returning from the formatter, the string in the string proxy is formatted by using NSFormattingContextUnknown. When the string proxy is used in stringWithFormat:, we can determine where the %@ is and then set the context accordingly. With the new context, the string in the string proxy will be formatted again and be put into the final string returned from stringWithFormat:.
case dynamic
// The capitalization context if a date or date symbol is to be formatted with capitalization appropriate for stand-alone usage such as an isolated name on a calendar page.
case standalone
// The capitalization context if a date or date symbol is to be formatted with capitalization appropriate for a list or menu item.
case listItem
// The capitalization context if a date or date symbol is to be formatted with capitalization appropriate for the beginning of a sentence.
case beginningOfSentence
// The capitalization context if a date or date symbol is to be formatted with capitalization appropriate for the middle of a sentence.
case middleOfSentence
}
/*
* There are 3 widths: long, medium, and short.
* For example, for English, when formatting "3 pounds"
* Long is "3 pounds"; medium is "3 lb"; short is "3#";
*/
public enum UnitStyle : Int, Sendable {
case short
case medium
case long
}
}
//@_nonSendable - TODO: Mark with attribute to indicate this pure abstract class defers Sendable annotation to its subclasses.
open class Formatter : NSObject, NSCopying, NSCoding {
public override init() {
}
public required init?(coder: NSCoder) {
}
open func encode(with aCoder: NSCoder) {
}
open override func copy() -> Any {
return copy(with: nil)
}
open func copy(with zone: NSZone? = nil) -> Any {
return self
}
open func string(for obj: Any) -> String? {
NSRequiresConcreteImplementation()
}
open func editingString(for obj: Any) -> String? {
return string(for: obj)
}
@available(*, unavailable, message: "Use each formatter's class and instance methods instead.")
open func objectValue(_ string: String) throws -> Any? {
NSUnsupported()
}
@available(*, unavailable, message: "Use each formatter's class and instance methods instead.")
func getObjectValue(_ obj: UnsafeMutablePointer<AnyObject?>?,
for string: String,
errorDescription error: UnsafeMutablePointer<NSString?>?) -> Bool {
NSUnsupported()
}
}
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