From fae2c9912f000b1768cb09fc88667b69bd4a5318 Mon Sep 17 00:00:00 2001
From: martin <laz.git@mfriebe.de>
Date: Sat, 25 Jul 2009 23:52:08 +0000
Subject: [PATCH] SynEdit: Small optimization to the undo system

git-svn-id: trunk@20958 -
---
 components/synedit/synedittexttrimmer.pas | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/components/synedit/synedittexttrimmer.pas b/components/synedit/synedittexttrimmer.pas
index 715b3fa0c6..ab814f790e 100644
--- a/components/synedit/synedittexttrimmer.pas
+++ b/components/synedit/synedittexttrimmer.pas
@@ -704,7 +704,8 @@ begin
   StoreSpacesForLine(LogY - 1,
                      copy(s,1, LogX - 1) + copy(s, LogX +  ByteLen, length(s)),
                      fSynStrings.Strings[LogY - 1]);
-  UndoList.AddChange(TSynEditUndoTrimDelete.Create(LogX, LogY, Result));
+  if Result <> '' then
+    UndoList.AddChange(TSynEditUndoTrimDelete.Create(LogX, LogY, Result));
 end;
 
 procedure TSynEditStringTrimmingList.EditMoveToTrim(LogY, Len: Integer);
@@ -820,7 +821,7 @@ begin
   Len := length(t);
 
   IgnoreSendNotification(senrEditAction, True);
-  // Delete uncommited spaces
+  // Delete uncommited spaces (could laso be ByteLen too big, due to past EOL)
   if LogX + ByteLen > Len + 1 then begin
     if LogX > Len + 1 then
       ByteLen := ByteLen - (LogX - (Len + 1));