ctlIME // Use Shift to toggle ASCII Input Mode.

Source/Modules/ControllerModules/ctlInputMethod_Core.swift

@@ -36,6 +36,15 @@ class ctlInputMethod: IMKInputController {
   var keyHandler: KeyHandler = .init()
   /// 用以記錄當前輸入法狀態的變數。
   var state: InputStateProtocol = InputState.Empty()
+  /// 當前這個 ctlInputMethod 副本是否處於英數輸入模式。
+  var isASCIIMode: Bool = false
+
+  /// 切換當前 ctlInputMethod 副本的英數輸入模式開關。
+  func toggleASCIIMode() -> Bool {
+    resetKeyHandler()
+    isASCIIMode = !isASCIIMode
+    return isASCIIMode
+  }
 
   // MARK: - 工具函式
 
@@ -87,6 +96,16 @@ class ctlInputMethod: IMKInputController {
     keyHandler.clear()
     keyHandler.ensureParser()
 
+    if isASCIIMode {
+      NotifierController.notify(
+        message: String(
+          format: "%@%@%@", NSLocalizedString("Alphanumerical Mode", comment: ""), "\n",
+          isASCIIMode
+            ? NSLocalizedString("NotificationSwitchON", comment: "")
+            : NSLocalizedString("NotificationSwitchOFF", comment: "")
+        ))
+    }
+
     /// 必須加上下述條件，否則會在每次切換至輸入法本體的視窗（比如偏好設定視窗）時會卡死。
     /// 這是很多 macOS 副廠輸入法的常見失誤之處。
     if client().bundleIdentifier() != Bundle.main.bundleIdentifier {
@@ -166,13 +185,24 @@ class ctlInputMethod: IMKInputController {
   /// - Returns: 回「`true`」以將該案件已攔截處理的訊息傳遞給 IMK；回「`false`」則放行、不作處理。
   @objc(handleEvent:client:) override func handle(_ event: NSEvent!, client sender: Any!) -> Bool {
     _ = sender  // 防止格式整理工具毀掉與此對應的參數。
+
+    // 用 Shift 開關半形英數模式。
+    if ShiftKeyUpChecker.check(event) {
+      NotifierController.notify(
+        message: String(
+          format: "%@%@%@", NSLocalizedString("Alphanumerical Mode", comment: ""), "\n",
+          toggleASCIIMode()
+            ? NSLocalizedString("NotificationSwitchON", comment: "")
+            : NSLocalizedString("NotificationSwitchOFF", comment: "")
+        ))
+      return false
+    }
+
     /// 這裡仍舊需要判斷 flags。之前使輸入法狀態卡住無法敲漢字的問題已在 KeyHandler 內修復。
     /// 這裡不判斷 flags 的話，用方向鍵前後定位光標之後，再次試圖觸發組字區時、反而會在首次按鍵時失敗。
     /// 同時注意：必須在 event.type == .flagsChanged 結尾插入 return false，
     /// 否則，每次處理這種判斷時都會觸發 NSInternalInconsistencyException。
-    if event.type == .flagsChanged {
+    if event.type == .flagsChanged { return false }
-      return false
-    }
 
     // 準備修飾鍵，用來判定是否需要利用就地新增語彙時的 Enter 鍵來砍詞。
     ctlInputMethod.areWeDeleting = event.modifierFlags.contains([.shift, .command])
@@ -194,7 +224,8 @@ class ctlInputMethod: IMKInputController {
       IME.areWeUsingOurOwnPhraseEditor = false
     }
 
-    let input = InputSignal(event: event, isVerticalTyping: isTypingVertical)
+    var input = InputSignal(event: event, isVerticalTyping: isTypingVertical)
+    input.isASCIIModeInput = isASCIIMode
 
     // 無法列印的訊號輸入，一概不作處理。
     // 這個過程不能放在 KeyHandler 內，否則不會起作用。

Source/Resources/Base.lproj/Localizable.strings

@@ -67,6 +67,7 @@
 "Optimize Memorized Phrases" = "Optimize Memorized Phrases";
 "Clear Memorized Phrases" = "Clear Memorized Phrases";
 "Currency Numeral Output" = "Currency Numeral Output";
+"Alphanumerical Mode" = "Alphanumerical Mode";
 
 // The followings are the category names used in the Symbol menu.
 "catCommonSymbols" = "CommonSymbols";

Source/Resources/en.lproj/Localizable.strings

@@ -67,6 +67,7 @@
 "Optimize Memorized Phrases" = "Optimize Memorized Phrases";
 "Clear Memorized Phrases" = "Clear Memorized Phrases";
 "Currency Numeral Output" = "Currency Numeral Output";
+"Alphanumerical Mode" = "Alphanumerical Mode";
 
 // The followings are the category names used in the Symbol menu.
 "catCommonSymbols" = "CommonSymbols";

Source/Resources/ja.lproj/Localizable.strings

@@ -67,6 +67,7 @@
 "Optimize Memorized Phrases" = "臨時記憶資料を整う";
 "Clear Memorized Phrases" = "臨時記憶資料を削除";
 "Currency Numeral Output" = "数字大字変換";
+"Alphanumerical Mode" = "英数入力モード";
 
 // The followings are the category names used in the Symbol menu.
 "catCommonSymbols" = "常用";

Source/Resources/zh-Hans.lproj/Localizable.strings

@@ -67,6 +67,7 @@
 "Optimize Memorized Phrases" = "精简临时记忆语汇资料";
 "Clear Memorized Phrases" = "清除临时记忆语汇资料";
 "Currency Numeral Output" = "大写汉字数字输出";
+"Alphanumerical Mode" = "英数输入模式";
 
 // The followings are the category names used in the Symbol menu.
 "catCommonSymbols" = "常用";

Source/Resources/zh-Hant.lproj/Localizable.strings

@@ -67,6 +67,7 @@
 "Optimize Memorized Phrases" = "精簡臨時記憶語彙資料";
 "Clear Memorized Phrases" = "清除臨時記憶語彙資料";
 "Currency Numeral Output" = "大寫漢字數字輸出";
+"Alphanumerical Mode" = "英數輸入模式";
 
 // The followings are the category names used in the Symbol menu.
 "catCommonSymbols" = "常用";