From 5bcb8c736ad154ad150363de0e49692baaa04ba2 Mon Sep 17 00:00:00 2001
From: Stephen Searles <stephen.searles@gmail.com>
Date: Tue, 13 Jun 2017 09:47:57 -0700
Subject: [PATCH] wip

---
 acedoc.go | 2 +-
 delta.go  | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/acedoc.go b/acedoc.go
index 3de1da1..582b073 100644
--- a/acedoc.go
+++ b/acedoc.go
@@ -74,7 +74,7 @@ func (d Delta) rows() uint {
 }
 
 func (d Delta) cols() uint {
-	r := d.End.Column - d.Start.Column
+	r := d.End.Column
 	return r
 }
 
diff --git a/delta.go b/delta.go
index b15b8fb..aa04518 100644
--- a/delta.go
+++ b/delta.go
@@ -217,8 +217,8 @@ func (d *Document) validate(dl Delta) error {
 
 	lastDlLine := dl.line(dl.nRows() - 1)
 
-	if uint(len(lastDlLine)) != dl.End.Column {
-		return fmt.Errorf("delta has %d chars on the final line, but positions show range of %d chars", len(lastDlLine), dl.End.Column)
+	if uint(len(lastDlLine)) != dl.cols() {
+		return fmt.Errorf("delta has %d chars on the final line, but positions show range of %d chars", len(lastDlLine), dl.cols())
 	}
 
 	return nil