From 25cced43a0737c85ec1598d74629c3cffdde1e9d Mon Sep 17 00:00:00 2001
From: Mavis Bot <mavis-bot@mini.max>
Date: Mon, 3 Aug 2026 19:59:57 +0000
Subject: [PATCH] fix : added ASCII fallback for Code widget gutter pipe
 character

---
 packages/widgets/src/display/Code.test.ts | 14 ++++++++++++--
 packages/widgets/src/display/Code.ts      |  2 +-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/packages/widgets/src/display/Code.test.ts b/packages/widgets/src/display/Code.test.ts
index 76a9a5039..63df0ab19 100644
--- a/packages/widgets/src/display/Code.test.ts
+++ b/packages/widgets/src/display/Code.test.ts
@@ -2,8 +2,8 @@
 // @termuijs/widgets — Tests for Code widget
 // ─────────────────────────────────────────────────────
 
-import { describe, it, expect } from 'vitest';
-import { Screen } from '@termuijs/core';
+import { describe, it, expect, vi } from 'vitest';
+import { Screen, caps } from '@termuijs/core';
 import { Code } from './Code.js';
 
 describe('Code', () => {
@@ -73,4 +73,14 @@ describe('Code', () => {
         expect(screen.back[0][3].char).toBe('t');
         expect(screen.back[0][4].char).toBe('╮'); // topRight corner (width-1 index)
     });
+
+    it('uses ASCII pipe for gutter separator when caps.unicode is false', () => {
+        vi.spyOn(caps, 'unicode', 'get').mockReturnValue(false);
+        const code = new Code('hello');
+        code.updateRect({ x: 0, y: 0, width: 12, height: 4 });
+        const screen = new Screen(12, 4);
+        code.render(screen);
+        // Gutter separator should be '|' in ASCII mode, not '\u2502'
+        expect(screen.back[1][2].char).toBe('|');
+    });
 });
diff --git a/packages/widgets/src/display/Code.ts b/packages/widgets/src/display/Code.ts
index 673a1067e..be4d75c81 100644
--- a/packages/widgets/src/display/Code.ts
+++ b/packages/widgets/src/display/Code.ts
@@ -49,7 +49,7 @@ export class Code extends Widget {
                 screen.writeString(x, y, lineNum, { dim: true });
                 x += lineNumWidth;
 
-                screen.setCell(x, y, { char: '│', dim: true });
+                screen.setCell(x, y, { char: caps.unicode ? '│' : '|', dim: true });
                 x++;
 
                 screen.setCell(x, y, { char: ' ' });