test(terminal): expect ESC+CR when Shift+Enter broadcast falls back

Non-preserving Kitty targets now receive the new default Alt+Enter
encoding instead of a bare newline.

Co-authored-by: 陈大猫 <binaricat@users.noreply.github.com>

application/i18n/locales/en/core.ts

@@ -712,7 +712,7 @@ Highlight the focused split pane:
     'Send configured text instead of normal Enter when pressing Shift+Enter in the terminal.',
   'settings.terminal.behavior.shiftEnterNewlineText': 'Text to send',
   'settings.terminal.behavior.shiftEnterNewlineText.desc':
-    'Use \\n for newline, \\t for tab, \\e for Escape, and \\\\ for backslash.',
+    'Use \\n for newline, \\t for tab, \\e for Escape, and \\\\ for backslash. Defaults to \\e\\r (Escape + Enter, the legacy Alt+Enter encoding), which most TUI CLIs treat as a newline.',
   'settings.terminal.behavior.shiftEnterForceText': 'Send text in Win32 input mode',
   'settings.terminal.behavior.shiftEnterForceText.desc':
     'Also send the text above when a local Windows ConPTY session negotiates Win32 input mode. Needed for Node/Bun CLIs (Claude Code, CodeBuddy) that cannot read modifier keys from console input records.',

application/i18n/locales/es/core.ts

@@ -627,7 +627,7 @@ Resalta el panel dividido enfocado:
     'Envía el texto configurado en lugar del Enter normal al presionar Shift+Enter en la terminal.',
   'settings.terminal.behavior.shiftEnterNewlineText': 'Texto a enviar',
   'settings.terminal.behavior.shiftEnterNewlineText.desc':
-    'Usa \\n para nueva línea, \\t para tabulación, \\e para Escape y \\\\ para barra invertida.',
+    'Usa \\n para nueva línea, \\t para tabulación, \\e para Escape y \\\\ para barra invertida. Por defecto \\e\\r (Escape + Enter, la codificación clásica de Alt+Enter), que la mayoría de las CLI TUI interpretan como nueva línea.',
   'settings.terminal.behavior.shiftEnterForceText': 'Enviar texto también en modo de entrada Win32',
   'settings.terminal.behavior.shiftEnterForceText.desc':
     'Envía también el texto anterior cuando una sesión ConPTY local de Windows negocia el modo de entrada Win32. Necesario para CLI escritas en Node/Bun (Claude Code, CodeBuddy) que no pueden leer modificadores desde los registros de entrada de la consola.',

application/i18n/locales/ru/core.ts

@@ -663,7 +663,7 @@ export const ruCoreMessages: Messages = {
     'Отправлять настроенный текст вместо обычного Enter при нажатии Shift+Enter в терминале.',
   'settings.terminal.behavior.shiftEnterNewlineText': 'Отправляемый текст',
   'settings.terminal.behavior.shiftEnterNewlineText.desc':
-    'Используйте \\n для перевода строки, \\t для табуляции, \\e для Escape и \\\\ для обратной косой черты.',
+    'Используйте \\n для перевода строки, \\t для табуляции, \\e для Escape и \\\\ для обратной косой черты. По умолчанию \\e\\r (Escape + Enter, классическая кодировка Alt+Enter), которую большинство TUI-CLI распознают как перевод строки.',
   'settings.terminal.behavior.shiftEnterForceText': 'Отправлять текст и в режиме ввода Win32',
   'settings.terminal.behavior.shiftEnterForceText.desc':
     'Отправлять указанный выше текст даже когда локальная сессия Windows ConPTY согласует режим ввода Win32. Нужно для CLI на Node/Bun (Claude Code, CodeBuddy), которые не читают модификаторы из записей ввода консоли.',

application/i18n/locales/zh-CN/terminal.ts

@@ -352,7 +352,7 @@ export const zhCNTerminalMessages: Messages = {
     '在终端中按 Shift+Enter 时发送配置的文本，而不是普通回车。',
   'settings.terminal.behavior.shiftEnterNewlineText': '发送内容',
   'settings.terminal.behavior.shiftEnterNewlineText.desc':
-    '使用 \\n 表示换行，\\t 表示 Tab，\\e 表示 ESC，\\\\ 表示反斜杠。',
+    '使用 \\n 表示换行，\\t 表示 Tab，\\e 表示 ESC，\\\\ 表示反斜杠。默认 \\e\\r（ESC+回车，传统 Alt+Enter 编码），大多数 TUI CLI 会将其识别为换行。',
   'settings.terminal.behavior.shiftEnterForceText': '在 Win32 输入模式下也发送文本',
   'settings.terminal.behavior.shiftEnterForceText.desc':
     '本机 Windows ConPTY 会话协商 Win32 输入模式时，仍然发送上面的文本。Node/Bun 写的 CLI（Claude Code、CodeBuddy）读不到控制台输入记录里的修饰键，需要这个开关才能区分 Shift+Enter。',

application/i18n/locales/zh-TW/terminal.ts

@@ -352,7 +352,7 @@ export const zhTWTerminalMessages: Messages = {
     '在終端中按 Shift+Enter 時傳送設定的文字，而不是一般 Enter。',
   'settings.terminal.behavior.shiftEnterNewlineText': '傳送內容',
   'settings.terminal.behavior.shiftEnterNewlineText.desc':
-    '使用 \\n 表示換行，\\t 表示 Tab，\\e 表示 ESC，\\\\ 表示反斜線。',
+    '使用 \\n 表示換行，\\t 表示 Tab，\\e 表示 ESC，\\\\ 表示反斜線。預設 \\e\\r（ESC+Enter，傳統 Alt+Enter 編碼），大多數 TUI CLI 會將其識別為換行。',
   'settings.terminal.behavior.shiftEnterForceText': '在 Win32 輸入模式下也傳送文字',
   'settings.terminal.behavior.shiftEnterForceText.desc':
     '本機 Windows ConPTY 工作階段協商 Win32 輸入模式時，仍然傳送上面的文字。Node/Bun 寫的 CLI（Claude Code、CodeBuddy）讀不到主控台輸入記錄中的修飾鍵，需要這個開關才能區分 Shift+Enter。',

components/settings/tabs/TerminalBehaviorSettings.tsx

@@ -224,9 +224,9 @@ export const TerminalBehaviorSettings: React.FC<TerminalBehaviorSettingsProps> =
           description={t("settings.terminal.behavior.shiftEnterNewlineText.desc")}
         >
           <Input
-            value={terminalSettings.shiftEnterNewlineText ?? "\\n"}
+            value={terminalSettings.shiftEnterNewlineText ?? "\\e\\r"}
             onChange={(e) => updateTerminalSetting("shiftEnterNewlineText", e.target.value)}
-            placeholder="\\n"
+            placeholder="\\e\\r"
             className="w-56 font-mono"
             spellCheck={false}
           />

components/terminal/runtime/kittyKeyboardBroadcast.test.ts

@@ -541,7 +541,7 @@ test("Shift+Enter broadcast uses CSI-u only after the target negotiated a preser
     applicationCursorMode: false,
     encodedKeys: new Set<string>(),
   }), {
-    data: "\n",
+    data: "\u001b\r",
     kittyEncoded: false,
     urgentInterrupt: false,
   });
@@ -552,7 +552,7 @@ test("Shift+Enter broadcast uses CSI-u only after the target negotiated a preser
     applicationCursorMode: false,
     encodedKeys: new Set<string>(),
   }), {
-    data: "\n",
+    data: "\u001b\r",
     kittyEncoded: false,
     urgentInterrupt: false,
   });

components/terminal/runtime/shiftEnterText.test.ts

@@ -26,8 +26,8 @@ const keyEvent = (overrides: Partial<KeyboardEvent> = {}) => ({
   ...overrides,
 }) as KeyboardEvent;
 
-test("shift enter text defaults to newline", () => {
-  assert.equal(resolveShiftEnterText(), "\n");
+test("shift enter text defaults to the legacy Alt+Enter encoding (ESC + CR)", () => {
+  assert.equal(resolveShiftEnterText(), "\u001b\r");
 });
 
 test("shift enter text decodes newline, tab, carriage return, and backslash escapes", () => {
@@ -71,6 +71,20 @@ test("shift enter submitted input detects single command text with a line ending
   assert.equal(getShiftEnterSubmittedInput("foo\nbar\n"), null);
 });
 
+test("Alt+Enter ESC+CR is a non-submitting logical line break", () => {
+  assert.equal(getShiftEnterSubmittedInput("\u001b\r"), null);
+  assert.equal(getShiftEnterSubmittedInput("echo hi\u001b\r"), null);
+  assert.equal(getShiftEnterSubmittedInput("echo hi\u001b\r\n"), null);
+  assert.deepEqual(getShiftEnterSubmittedInput("echo hi\r"), {
+    text: "echo hi",
+    lineEnding: "\r",
+  });
+  assert.deepEqual(getShiftEnterSubmittedInput("\u001b\n"), {
+    text: "\u001b",
+    lineEnding: "\n",
+  });
+});
+
 test("shift enter handler only matches plain Shift+Enter keydown", () => {
   assert.equal(shouldSendShiftEnterText(keyEvent()), true);
   assert.equal(shouldSendShiftEnterText(keyEvent({ type: "keyup" })), false);

components/terminal/runtime/shiftEnterText.ts

@@ -1,6 +1,6 @@
 import type { TerminalSettings } from "../../../domain/models";
 
-export const DEFAULT_SHIFT_ENTER_TEXT = "\\n";
+export const DEFAULT_SHIFT_ENTER_TEXT = "\\e\\r";
 
 /** Kitty CSI-u encoding for Shift+Enter (keycode 13, modifier shift → 2). */
 export const SHIFT_ENTER_CSI_U_SEQUENCE = "\u001b[13;2u";
@@ -109,10 +109,15 @@ export type ShiftEnterSubmittedInput = {
   lineEnding: "\r\n" | "\r" | "\n";
 };
 
+/** ESC immediately before a terminating CR is the legacy Alt+Enter line break. */
+function isAltEnterLineBreak(text: string): boolean {
+  return text.endsWith("\u001b\r") || text.endsWith("\u001b\r\n");
+}
+
 export function getShiftEnterSubmittedInput(
   text: string,
 ): ShiftEnterSubmittedInput | null {
-  if (isShiftEnterLineContinuationText(text)) return null;
+  if (isShiftEnterLineContinuationText(text) || isAltEnterLineBreak(text)) return null;
   const match = text.match(/^([^\r\n]*)(\r\n|\r|\n)$/);
   if (!match) return null;
   return {

domain/models/terminal.ts

@@ -522,7 +522,7 @@ const DEFAULT_TERMINAL_SETTINGS: TerminalSettings = {
   altAsMeta: false,
   optionArrowWordJump: false,
   shiftEnterNewlineEnabled: true,
-  shiftEnterNewlineText: '\\n',
+  shiftEnterNewlineText: '\\e\\r',
   shiftEnterForceText: false,
   kittyKeyboardProtocolEnabled: false,
   scrollOnInput: true,

domain/terminalSettings.test.ts

@@ -93,7 +93,7 @@ test("normalizeTerminalSettings enables Shift+Enter newline by default", () => {
   const settings = normalizeTerminalSettings();
 
   assert.equal(settings.shiftEnterNewlineEnabled, true);
-  assert.equal(settings.shiftEnterNewlineText, "\\n");
+  assert.equal(settings.shiftEnterNewlineText, "\\e\\r");
 });
 
 test("normalizeTerminalSettings disables Kitty keyboard protocol by default", () => {
@@ -114,7 +114,7 @@ test("normalizeTerminalSettings preserves Shift+Enter text", () => {
 test("normalizeTerminalSettings falls back when Shift+Enter text is not a string", () => {
   assert.equal(
     normalizeTerminalSettings({ shiftEnterNewlineText: null as never }).shiftEnterNewlineText,
-    "\\n",
+    "\\e\\r",
   );
 });