strip escape characters when pasting. (#386)

2 files changed, 15 insertions, 1 deletions

diff --git a/packages/cli/src/ui/components/shared/text-buffer.test.ts b/packages/cli/src/ui/components/shared/text-buffer.test.ts
index 8e35e3e9..acaa4179 100644
--- a/packages/cli/src/ui/components/shared/text-buffer.test.ts
+++ b/packages/cli/src/ui/components/shared/text-buffer.test.ts
@@ -495,6 +495,14 @@ describe('useTextBuffer', () => {
       act(() => result.current.handleInput(undefined, { rightArrow: true })); // cursor [0,2]
       expect(getBufferState(result).cursor).toEqual([0, 2]);
     });
+
+    it('should strip ANSI escape codes when pasting text', () => {
+      const { result } = renderHook(() => useTextBuffer({ viewport }));
+      const textWithAnsi = '\x1B[31mHello\x1B[0m \x1B[32mWorld\x1B[0m';
+      // Simulate pasting by calling handleInput with a string longer than 1 char
+      act(() => result.current.handleInput(textWithAnsi, {}));
+      expect(getBufferState(result).text).toBe('Hello World');
+    });
   });
 
   // More tests would be needed for:
diff --git a/packages/cli/src/ui/components/shared/text-buffer.ts b/packages/cli/src/ui/components/shared/text-buffer.ts
index 5f25f9e0..b13a57c6 100644
--- a/packages/cli/src/ui/components/shared/text-buffer.ts
+++ b/packages/cli/src/ui/components/shared/text-buffer.ts
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+import stripAnsi from 'strip-ansi';
 import { spawnSync } from 'child_process';
 import fs from 'fs';
 import os from 'os';
@@ -1127,7 +1128,12 @@ export function useTextBuffer({
       )
         backspace();
       else if (key['delete']) del();
-      else if (input && !key['ctrl'] && !key['meta']) insert(input);
+      else if (input && !key['ctrl'] && !key['meta']) {
+        // Heuristic for paste: if input is longer than 1 char (potential paste)
+        // strip ANSI escape codes.
+        const cleanedInput = input.length > 1 ? stripAnsi(input) : input;
+        insert(cleanedInput);
+      }
 
       const textChanged = text !== beforeText;
       // After operations, visualCursor might not be immediately updated if the change