XXMessengerClient - logging

XXMessengerClient

• Add MessengerSetLogLevel function.
• Add MessengerStartLogging function.
• Implement logging with swift-log package.

xx-messenger example

• Log using swift-log package.
• Bootstrap logging system with Pulse library.
• Start logging when creating AppEnvironment.

Sources/XXMessengerClient/Utils/LogMessage.swift

@@ -15,7 +15,7 @@ extension LogMessage {
   public static func parse(_ string: String) -> LogMessage {
     let level: Logger.Level
     let text: String
-    let pattern = #"([A-Z]+) (.*)"#
+    let pattern = #"^([A-Z]+)( \d{4}/\d{2}/\d{2})?( \d{1,2}:\d{2}:\d{2}\.\d+)? (.*)$"#
     let regex = try! NSRegularExpression(pattern: pattern)
     let stringRange = NSRange(location: 0, length: string.utf16.count)
     if let match = regex.firstMatch(in: string, range: stringRange) {
@@ -28,7 +28,7 @@ extension LogMessage {
         }
       }
       level = .fromString(groups[1])
-      text = groups[2] ?? string
+      text = groups[4] ?? string
     } else {
       level = .notice
       text = string