add all api to sort by month

Sources/App/Libraries/SwiftDate/Formatters/DotNetParserFormatter.swift

@@ -0,0 +1,69 @@
+//
+//  SwiftDate
+//  Parse, validate, manipulate, and display dates, time and timezones in Swift
+//
+//  Created by Daniele Margutti
+//   - Web: https://www.danielemargutti.com
+//   - Twitter: https://twitter.com/danielemargutti
+//   - Mail: hello@danielemargutti.com
+//
+//  Copyright © 2019 Daniele Margutti. Licensed under MIT License.
+//
+
+import Foundation
+
+public class DOTNETParser: StringToDateTransformable {
+
+	internal static let pattern = "\\/Date\\((-?\\d+)((?:[\\+\\-]\\d+)?)\\)\\/"
+
+	public static func parse(_ string: String) -> (seconds: TimeInterval, tz: TimeZone)? {
+		do {
+			let parser = try NSRegularExpression(pattern: DOTNETParser.pattern, options: .caseInsensitive)
+			guard let match = parser.firstMatch(in: string, options: .reportCompletion, range: NSRange(location: 0, length: string.count)) else {
+				return nil
+			}
+
+			guard let milliseconds = TimeInterval((string as NSString).substring(with: match.range(at: 1))) else { return nil }
+
+			// Parse timezone
+			let raw_tz = ((string as NSString).substring(with: match.range(at: 2)) as NSString)
+			guard raw_tz.length > 1 else {
+				return nil
+			}
+			let tz_sign: String = raw_tz.substring(to: 1)
+			if tz_sign != "+" && tz_sign != "-" {
+				return nil
+			}
+
+			let tz_hours: String = raw_tz.substring(with: NSRange(location: 1, length: 2))
+			let tz_minutes: String = raw_tz.substring(with: NSRange(location: 3, length: 2))
+
+			let tz_offset = (Int(tz_hours)! * 60 * 60) + ( Int(tz_minutes)! * 60 )
+			guard let tz_obj = TimeZone(secondsFromGMT: tz_offset) else {
+				return nil
+			}
+			return ( (milliseconds / 1000), tz_obj )
+		} catch {
+			return nil
+		}
+	}
+
+	public static func parse(_ string: String, region: Region?, options: Any?) -> DateInRegion? {
+		guard let result = DOTNETParser.parse(string) else { return nil }
+        let regionSet = region ?? Region.ISO
+		let adaptedRegion = Region(calendar: regionSet.calendar, zone: regionSet.timeZone, locale: regionSet.locale)
+		return DateInRegion(seconds: result.seconds, region: adaptedRegion)
+	}
+
+}
+
+public class DOTNETFormatter: DateToStringTrasformable {
+
+	public static func format(_ date: DateRepresentable, options: Any?) -> String {
+		let milliseconds = (date.date.timeIntervalSince1970 * 1000.0)
+		let tzOffsets = (date.region.timeZone.secondsFromGMT(for: date.date) / 3600)
+		let formattedStr = String(format: "/Date(%.0f%+03d00)/", milliseconds, tzOffsets)
+		return formattedStr
+	}
+
+}