d

src/MeetupId.swift

@@ -0,0 +1,54 @@
+import Foundation
+
+enum MeetupId {
+  enum Keys: String, RawRepresentable {
+    case meetupIdTextApp
+    case meetupIdTextUI
+  }
+
+  static func shouldFormat(_ s: String) -> String? {
+    s.components(separatedBy: NSCharacterSet.decimalDigits.inverted).reduce("") { $0 + $1 }
+  }
+    
+    /*
+  final class MeetupIdFormatter {
+      var subscriptions = [AnyCancellable]()
+
+      deinit {
+          /**/dbg("ИГР MeetupIF.DEinit")
+      }
+
+      init() {
+          Bus.receive(
+              &subscriptions,
+              [Keys.meetupIdTextUI.rawValue],
+              { [weak self] k, v in self?.handleFormatting(k, v) }
+          )
+          /**/dbg("ИГР MeetupIF.init")
+      }
+      
+      func handleFormatting(_: String, _ value: String) {
+          let out = MeetupId.shouldFormat(value)
+          /**/dbg("ИГР MeetupIF.handleF out/dt: '\(out)'/'\(Date())'")
+          Bus.Service.singleton?.send(Keys.meetupIdTextApp.rawValue, out)
+      }
+  }
+
+  struct V: View {
+      /*@StateObject*/ var fmt = MeetupIdFormatter()
+      @StateObject var txt = Bus.BindingPipe("", Keys.meetupIdTextApp.rawValue, Keys.meetupIdTextUI.rawValue)
+      
+      var body: some View {
+          VStack {
+              Text("Hi, the text is: '\(txt.value)'")
+                  .fontWeight(.bold)
+              TextField("Placeholder", text: $txt.value)
+                  .padding(8)
+                  .border(Color.blue, width: 2)
+          }
+          .frame(width: 320)
+          .padding()
+      }
+  }
+  */
+}