From e3674d86972159f37c7d628db8aa805fb77abbf7 Mon Sep 17 00:00:00 2001
From: Martin Valba <kailing2@live.com>
Date: Sun, 8 Jan 2023 21:00:35 +0200
Subject: [PATCH] termux-app/commit/701b5ccd5ca8ccb426046c6bc7c86279e29b5ae0

* https://github.com/termux/termux-app/commit/701b5ccd5ca8ccb426046c6bc7c86279e29b5ae0
---
 .../java/com/offsec/nhterm/backend/TerminalBuffer.java     | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/nhterm/src/main/java/com/offsec/nhterm/backend/TerminalBuffer.java b/nhterm/src/main/java/com/offsec/nhterm/backend/TerminalBuffer.java
index 2e0a1f5..c25c525 100644
--- a/nhterm/src/main/java/com/offsec/nhterm/backend/TerminalBuffer.java
+++ b/nhterm/src/main/java/com/offsec/nhterm/backend/TerminalBuffer.java
@@ -93,8 +93,11 @@ public final class TerminalBuffer {
           if (c != ' ') lastPrintingCharIndex = i;
         }
       }
-      if (lastPrintingCharIndex != -1)
-        builder.append(line, x1Index, lastPrintingCharIndex - x1Index + 1);
+
+      int len = lastPrintingCharIndex - x1Index + 1;
+      if (lastPrintingCharIndex != -1 && len > 0)
+        builder.append(line, x1Index, len);
+
       if ((!joinBackLines || !rowLineWrap)
         && row < selY2 && row < mScreenRows - 1) builder.append('\n');
     }