From 1931b5ac7e602ec41751f893259870e42011cbed Mon Sep 17 00:00:00 2001
From: Eugene Pankov <john.pankov@gmail.com>
Date: Fri, 28 May 2021 19:39:41 +0200
Subject: [PATCH] handle buffers cut in the middle of a unicode char - fixes
 #3883, fixes #3882, fixes #3093, fixes #2043

---
 app/lib/pty.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/lib/pty.ts b/app/lib/pty.ts
index 1917695a..2ca95548 100644
--- a/app/lib/pty.ts
+++ b/app/lib/pty.ts
@@ -1,4 +1,5 @@
 import * as nodePTY from '@terminus-term/node-pty'
+import { StringDecoder } from 'string_decoder'
 import { v4 as uuidv4 } from 'uuid'
 import { ipcMain } from 'electron'
 import { Application } from './app'
@@ -9,6 +10,7 @@ class PTYDataQueue {
     private maxChunk = 1024
     private maxDelta = 1024 * 50
     private flowPaused = false
+    private decoder = new StringDecoder('utf8')
 
     constructor (private pty: nodePTY.IPty, private onData: (data: Buffer) => void) { }
 
@@ -49,7 +51,7 @@ class PTYDataQueue {
                 this.buffers.unshift(toSend.slice(this.maxChunk))
                 toSend = toSend.slice(0, this.maxChunk)
             }
-            this.onData(toSend)
+            this.emitData(toSend)
             this.delta += toSend.length
 
             if (this.buffers.length) {
@@ -58,6 +60,10 @@ class PTYDataQueue {
         }
     }
 
+    private emitData (data: Buffer) {
+        this.onData(Buffer.from(this.decoder.write(data)))
+    }
+
     private pause () {
         this.pty.pause()
         this.flowPaused = true