From 60c1c22a73b154970c7437759543b5dbbc561dca Mon Sep 17 00:00:00 2001
From: paxcut <53811119+paxcut@users.noreply.github.com>
Date: Wed, 23 Apr 2025 06:54:39 -0700
Subject: [PATCH] fix: fixes Issue #1621 (#2189)

fixes Issue #1621.
Using shift-tab on an empty line caused a crash.  Additionally, changed
the hard coded value of 4 to the tab size variable it really needs to be.
---
 lib/third_party/imgui/ColorTextEditor/source/TextEditor.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/third_party/imgui/ColorTextEditor/source/TextEditor.cpp b/lib/third_party/imgui/ColorTextEditor/source/TextEditor.cpp
index 591e9fd94..301ed796c 100644
--- a/lib/third_party/imgui/ColorTextEditor/source/TextEditor.cpp
+++ b/lib/third_party/imgui/ColorTextEditor/source/TextEditor.cpp
@@ -1479,8 +1479,8 @@ void TextEditor::EnterCharacter(ImWchar aChar, bool aShift) {
             SetCursorPosition(Coordinates(coord.mLine, GetCharacterColumn(coord.mLine, cindex + spacesToInsert)));
         } else {
             auto spacesToRemove = (cindex % mTabSize);
-            if (spacesToRemove == 0) spacesToRemove = 4;
-
+            if (spacesToRemove == 0) spacesToRemove = mTabSize;
+            spacesToRemove = std::min(spacesToRemove, (int32_t) line.size());
             for (int j = 0; j < spacesToRemove; j++) {
                 if ((line.begin() + cindex - 1)->mChar == ' ') {
                     line.erase(line.begin() + cindex - 1);