From 3ed77dbb2e8db2b901e9e0c22dbb72104fd963c5 Mon Sep 17 00:00:00 2001
From: Zachary Yedidia <zyedidia@gmail.com>
Date: Mon, 10 Feb 2020 00:18:08 -0500
Subject: [PATCH] Sanitize inputs to insert and remove

---
 internal/buffer/eventhandler.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/internal/buffer/eventhandler.go b/internal/buffer/eventhandler.go
index cc737586..9e57108d 100644
--- a/internal/buffer/eventhandler.go
+++ b/internal/buffer/eventhandler.go
@@ -117,6 +117,7 @@ func (eh *EventHandler) Insert(start Loc, textStr string) {
 
 // InsertBytes creates an insert text event and executes it
 func (eh *EventHandler) InsertBytes(start Loc, text []byte) {
+	start = clamp(start, eh.buf.LineArray)
 	e := &TextEvent{
 		C:         *eh.cursors[eh.active],
 		EventType: TextEventInsert,
@@ -167,6 +168,8 @@ func (eh *EventHandler) InsertBytes(start Loc, text []byte) {
 
 // Remove creates a remove text event and executes it
 func (eh *EventHandler) Remove(start, end Loc) {
+	start = clamp(start, eh.buf.LineArray)
+	end = clamp(end, eh.buf.LineArray)
 	e := &TextEvent{
 		C:         *eh.cursors[eh.active],
 		EventType: TextEventRemove,