From 354b822d21ca82dc6a761d67cd92e4e00f855da5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bla=C5=BE=20Hrastnik?= <blaz@mxxn.io>
Date: Sat, 15 May 2021 10:46:59 +0900
Subject: [PATCH] Fix crash on xa<Enter> if we were on the last line.

---
 helix-term/src/commands.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index 3476e901..fc3c2561 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -823,6 +823,17 @@ pub fn append_mode(cx: &mut Context) {
             graphemes::next_grapheme_boundary(text, range.to()), // to() + next char
         )
     });
+
+    let end = text.len_chars();
+
+    if selection.iter().any(|range| range.head == end) {
+        let transaction = Transaction::change(
+            doc.text(),
+            vec![(end, end, Some(Tendril::from_char('\n')))].into_iter(),
+        );
+        doc.apply(&transaction, view.id);
+    }
+
     doc.set_selection(view.id, selection);
 }