From 94bfde2a3851e5d6ac09c2f4848b0336dcf91271 Mon Sep 17 00:00:00 2001
From: Zac <zacary.gillerat@connect.qut.edu.au>
Date: Mon, 25 Jan 2021 23:19:07 +1000
Subject: [PATCH] TextEditor: Fix bug in delete_current_line() when deleting
 the last line

A missing '- 1' when initializing the starting TextPosition lead to a
crash due to attempting to delete text in an illegal TextRange.
---
 Userland/Libraries/LibGUI/TextEditor.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibGUI/TextEditor.cpp b/Userland/Libraries/LibGUI/TextEditor.cpp
index 3798a50c5b..d4b916b994 100644
--- a/Userland/Libraries/LibGUI/TextEditor.cpp
+++ b/Userland/Libraries/LibGUI/TextEditor.cpp
@@ -770,7 +770,7 @@ void TextEditor::delete_current_line()
         start = { 0, 0 };
         end = { 0, line(0).length() };
     } else if (m_cursor.line() == line_count() - 1) {
-        start = { m_cursor.line() - 1, line(m_cursor.line()).length() };
+        start = { m_cursor.line() - 1, line(m_cursor.line() - 1).length() };
         end = { m_cursor.line(), line(m_cursor.line()).length() };
     } else {
         start = { m_cursor.line(), 0 };