fix(tui): stabilize regional indicator width to prevent streaming render drift (#1783)

2026-03-04 04:59:56 +08:00
parent d4084a7ad6
commit 85d06052fb
4 changed files with 68 additions and 0 deletions
--- a/packages/tui/test/wrap-ansi.test.ts
+++ b/packages/tui/test/wrap-ansi.test.ts
@@ -111,6 +111,11 @@ describe("wrapTextWithAnsi", () => {
 			}
 		});

+		it("should treat isolated regional indicators as width 2", () => {
+			assert.strictEqual(visibleWidth("🇨"), 2);
+			assert.strictEqual(visibleWidth("🇨🇳"), 2);
+		});
+
 		it("should truncate trailing whitespace that exceeds width", () => {
 			const twoSpacesWrappedToWidth1 = wrapTextWithAnsi("  ", 1);
 			assert.ok(visibleWidth(twoSpacesWrappedToWidth1[0]) <= 1);