From 5305dc49182acef1574427bb57ad24025967738d Mon Sep 17 00:00:00 2001
From: nyamatongwe <unknown>
Date: Wed, 14 Apr 2004 22:03:56 +0000
Subject: Patch from Trent Mick. Prevent autocompletion from deleting prefix
 when actioned with no choice selected. Cancel autocompletion when backspacing
 beyond the start position rather than to the start position.

---
 src/ScintillaBase.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ScintillaBase.cxx b/src/ScintillaBase.cxx
index e42b5dc65..cc02674b3 100644
--- a/src/ScintillaBase.cxx
+++ b/src/ScintillaBase.cxx
@@ -297,7 +297,7 @@ void ScintillaBase::AutoCompleteCharacterAdded(char ch) {
 }
 
 void ScintillaBase::AutoCompleteCharacterDeleted() {
-	if (currentPos <= ac.posStart - ac.startLen) {
+	if (currentPos < ac.posStart - ac.startLen) {
 		ac.Cancel();
 	} else if (ac.cancelAtStartPos && (currentPos <= ac.posStart)) {
 		ac.Cancel();
@@ -314,6 +314,8 @@ void ScintillaBase::AutoCompleteCompleted() {
 		ac.lb->GetValue(item, selected, sizeof(selected));
 	}
 	ac.Cancel();
+	if (item == -1)
+		return;
 
 	if (listType > 0) {
 		userListSelected = selected;
-- 
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