From 70e15534e1b256261ce003f053172cde10c3842e Mon Sep 17 00:00:00 2001
From: Chapman Pendery <cpendery@vt.edu>
Date: Fri, 8 Nov 2024 13:42:59 -0800
Subject: [PATCH] fix: wide cells on rewrite

Signed-off-by: Chapman Pendery <cpendery@vt.edu>
---
 src/isterm/pty.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/isterm/pty.ts b/src/isterm/pty.ts
index c712415..2f06239 100644
--- a/src/isterm/pty.ts
+++ b/src/isterm/pty.ts
@@ -298,7 +298,9 @@ export class ISTerm implements IPty {
         if (!sameAccents) {
           ansiLine.push(this._getAnsiAccents(cell));
         }
-        ansiLine.push(chars == "" ? ansi.cursorForward() : chars);
+        const isWide = prevCell?.getWidth() == 2 && cell?.getWidth() == 0;
+        const cursorForward = isWide ? "" : ansi.cursorForward();
+        ansiLine.push(chars == "" ? cursorForward : chars);
         prevCell = cell;
       }
       return ansiLine.join("");